Method and apparatus for transporting printed products variable thickness.

31-05-2018 дата публикации
Номер:
CH0000713149A1
Принадлежит: Mueller Martini Holding Ag
Контакты:
Номер заявки: 16-20-1538
Дата заявки: 21-11-2016

Description

[1]

[0001] The invention concerns a method and a device for transporting printed products variable thickness by a cutting device, which for example a saddle stitcher, a adhesive binder, a sewing machine or other print finishing machine is connected downstream. The apparatus is also suitable for printed products, which are not or are only partially attached. The printed products are typically cut to size with two and more separate sections on three sides. The printed products are stationary during cutting operations. A conveyor downstream of the front blade of the cutting device accepts the printed products directly, which is arranged transversely to the conveying direction, transports the printed products for position for the first and second cut and trimmed to a subsequent machine then delivers the printed products.

[2]

[0002] As introduction of protection, for the better understanding of the invention, the following comments are taken into account, which can be considered as previously known but not in all parts.

[3]

[0003] The conveying device such a device is typically by varying the distance over their entire length between upper and lower conveyor belts on the thickness of the printed products to be processed is set.

[4]

[0004] Another possibility exists, only the vertical distance of a first toothed belt wheel of the upper conveyor belt of the lower conveyor downstream of the front blade directly adjust, i.e. at the location, at which the printed product from an upstream product supply is taken. After the first timing pulley the conveyor belts are pressed each other via spring elements of this solution, which elements a printed product during transportation by the value of the product thickness and adapt to the springing each printed product to be processed.

[5]

[0005] So far is adjusting the vertical distance of both manually or with an automated conveyor belts typically solutions axis, driven by a servomotor, instead. This adjustment is performed once and remains constant throughout the production at establishment of a production, readjustment is necessary unless.

[6]

[0006] In one finds two solution variants, only a product thickness that can be adjusted per production, and thus printed products with different thicknesses within a production not or only with product quality can be processed.

[7]

[0007] As the saddle stitcher st500 standing next state of technique is considered the firm pressing of Heidelberg Germany GmbH to mail, which is described below and represented on the figfig. 4 - 6. Similar to the thickness of a pressure device according to the invention product is also adjusted the position of a toothed belt wheel of the st500 conveyor 50. With the position of the toothed belt wheel 50 also the position of an associated conveyor belt 51, which engages the printed product and transported changes. The toothed belt pulley 50 is rotatably mounted on a lever 52. A bolt 53 is fixedly connected to the lever 52. The position of the lever 54 is controlled by a hub 52. Another lever 72 is tightly clamped onto the hub 54. The position of the lever 52 for further lever 55 with a screw 72 can be adjusted. In this way a Offs EE can on the left and on the right side between the position of the lever 52 are adjusted to the transport device.

[8]

[0008] The hub 54 is seated on both sides of the conveying device on a shaft 56, which leads across the conveyor. The shaft 56 and the hub 54 are each carried out with a polygonal profile, whereby the rotational movement of the shaft 56 is transmitted to the hub 54.

[9]

[0009] The shaft 56 is rotatable in side shields 57 of the st500 mounted. At the end of the shaft 56 is a lever 58 fixed. 59 60 61 A tappet via a servomotor and a gear is moved. This pushes against the lever so that the position of the toothed belt wheels 50 58 and adjusted simultaneously on both sides of the conveyor. Analogous to this conveyor device according to the invention must also of the state of technology the toothed belt wheels 50 or 51 are lifted from the conveyor belts printed product, shortly before its reaches back mechanical stops 62.

[10]

[0010] The movement for lifting the toothed belt wheels 50 or 51 is coupled to the clock of the machine and the upper conveyor belts is via a cam 63 on a main shaft 64 of the machine controlled. A lever 65 transmits the curved path of the cam 63 on a linkage 66. The linkage moves a lever 66 67, which is mounted rotatably on the shaft 56. A threaded rod with two nuts 67 68 69 seated in the lever countered. The nuts are pressed against a bearing pin with a compression spring 69 70 71, which is mounted rotatably in the lever 58. The cam track of the cam on the lever 63 is thus purely mechanically transmitted and hence the lever lifts from the plunger 58 67 61 68 67 about the location of the threaded rod in the lever can off. are adjusted, as the amplitude of the movement upon lifting the toothed belt wheels 50 large and thus the pressure of the conveyor belts is product 51.

[11]

[0011] The following disadvantages to this state of the art according to the restrictions can be respectively detecting figfig. 4 - 6:

[12]

The thickness of the printed products during production is set up on the - machine set permanently. The basic position on the slowly rotating servomotor will set 59. It is not possible, the adjustment of the thickness to individually for individual printed products. In this way it is not possible a thickness variable production with widely varying thicknesses on the product processing machine.

[13]

Since the left and right side of the mechanically adjusting means - are coupled together, it is not possible, partial differences in product thickness, e.g. on the basis of patterns were bonded, wherein individual printed products to take into account.

[14]

- The motion profile for lifting the conveyor belts 51 just before the printed product reaches the mechanical stops 62, 63 of the cam by the curved track in predetermined, fixed speed of the machine is coupled to the clock thereof. The timing and the profile of the movement in order to enable the individual printed products are not individually adapted when lifted.

[15]

The shaft 56 -, which the left and right side of the coupling means, must be developed for the exchange of the conveyor belts 51, which leads to longer periods of service.

Definitions

[16]

[0012]

[17]

Printed sheets

[18]

Printed product

[19]

Staple

[20]

Stapling head

[21]

Stapling operation

[22]

Stapling carriage

[23]

Stitching station

[24]

One or two side printed, multipage paper.

[25]

(Newspaper, book, magazine, catalog) finished printed product consisting of at least one or more printed sheets.

[26]

Consists of a stitching wire and has the shape of a square U-shaped.

[27]

The stitching wire intersects and forms the stitching wire to and positioned a staple.

[28]

Operation, wherein at least one staple by the printed product at the other end is closed and pushed.

[29]

Part of the stitching station, on which the stapling heads are mounted. Wherein the stitching carriage as a stationary device, used in collecting temporary fasteners with clocked collecting chain, or as oscillating device, said stitching which is in synchronism with the chain, may be performed.

[30]

Staples a printed product, which consists of one or more printed sheets, by means of a staple.

[31]

The thickness of the variable thickness intermittently processed, successive printed products is variable, i.e.

[32]

they can each have a different thickness.

[33]

Cutter device, via a front and two side cutting process and the knife blade has front cut and performs KopfVFussschnitt consisting successively.

[34]

Product supply

[35]

Saddle stitcher

[36]

Digital printing:

[37]

Selective a binding

[38]

Mechanical means for transporting a printed product, the delivery of the stitching station to the cutting device.

[39]

In a saddle stitcher are usually more printed sheets on a conveyor chain collected, in the stitching station tacked on the required size cut on three sides and in the cutting device.

[40]

In the production process and to a printed product printed directly printed sheets are assembled, each printed product can include different number printed sheets, what the thickness of the printed product influenced.

[41]

Producing bound printed products equal or different thickness depending on the combined application of printed sheets.

Disclosure of the invention

[42]

[0013] The invention is trying to remedy. The invention, as characterized in the claims, is based on the task, with the printed products with different thicknesses in the product conveyor that also constant high cutting quality can be processed and transported cutter. Printed products with different thicknesses to receiving, on the thickness of the conveyor from the clock to clock must next printed product are adjusted.

[43]

[0014] The problem of the invention is solved by a method, which has the features of claim 1.

[44]

[0015] What the method for operating the conveyor operatively connected to the cutter shown in Figures concerns, is to say the following:

[45]

1. The position of a first toothed belt wheel on the basis of the target value is a control unit of the adjustment device on the printed product thickness of the next clock set.

[46]

2. The printed product is between at least an upper and a lower conveyor belt and collected detected, wherein preferably such a pair of conveyor belts cut back - side parallel to the conveying direction of the printed product and each foot is arranged.

[47]

3. Before the first cutting operation in the cutter device is the printed product along a predetermined plane of mechanical stops aligned. The first timing pulley is for the printed product reaches the stops just before the pressure product slightly lifted so far, so that this with a reduced contact force between the upper and lower conveyor belts and is clamped to the attacks can aligning.

[48]

4. The contact force on the printed product by the conveyor belts against final transportation is therefore reduced, but wherein a residual force is maintained, which in dependence upon a large area or format of the printed product only in the region of the back of the printed product selectively acts.

[49]

5. This force in the region of the back of the printed product is selectively maintained, by the front plane of the upper conveyor belt along said spine while maintaining the local force still acts, while the rest of the printed product active length of the upper conveyor belt counter to the conveying direction of the printed product lifts a few degrees angularly, such, that between surface and undersurface of the upper conveyor belt a wedge-shaped gap of the printed product forms, along or in the area of the back of the printed product whose zero point sets.

[50]

6. Exercise its force at a distance from the upper conveyor belt optionally first time pressure from back of the product, if it is determined in this area a bulge of the printed product.

[51]

7. The conveyor belts are stopped upon reaching the cutting location.

[52]

8. The printed product is pressed with a pressing member to a lower blade of the cutting device and of an upper blade cut.

[53]

9. The first timing pulley after stopping the conveyor belts on the printed product is lowered.

[54]

10. After cutting of the printed product from the pressing element is lifted and gives the printed product free lower blade.

[55]

11. The transporting the printed product after lowering the toothed belt wheel or accelerated after the release of the printed matter and transported to a position for another cut it.

[56]

12. Once the printed product below the first toothed belt wheel of the upper conveyor belt not more is, is the first toothed belt pulley on the printed product thickness of the next clock set.

[57]

[0016] The dependent claims 2 to point 5 to give other features of the invention, without this closing to designate.

[58]

[0017] The task of the invention is further solved by a transporting device, which has the features of claim 12.

[59]

[0018] Is essential to the invention, each of the adjustment means of the transporting device has a respective drive, which is driven by a control unit independently of clock to clock. Here means independently of a drive of the cutting device and independently from a drive of the conveyor. Is more than an adjuster arranged, independently of the drive of the other adjustment means or also independently represents independently of the drives of the other adjustment means.

[60]

[0019] The dependent claims 6 io 10 to provide further features of the invention, without this closing to designate. Preferably, two upper and two lower that the transporting device, each operatively connected together in pairs each pair of conveyor belts and conveyor belts a one part with a drive device, wherein each of the two drives by a first toothed belt pulley with the two upper or be acted upon by the two lower conveyor belts being arranged cooperatively and an independent activation of the drives by a signal of the control unit takes place.

[61]

[0021] For this purpose is the adjusting means adjust the position of the two upper conveyor belts in the region directly downstream of the front blade front edge trim for the printed product individually for each setting. The adjustment device to a functioning position for each allowed product thickness adjusting (minimum product thickness=0 mm, 10 mm maximum thickness=product). The adjustment device to a maximum production rate of 9000 printed products to the positioning and more per hour for each individual printed product make individually. The adjustment device is meant to be of minimum size (length X width back) product formats (118 mm x 60 mm) up to the maximum size product product (368 mm x 305 mm) smoothly functioning.

[62]

[0022] Therefore is the first toothed belt pulley of the upper conveyor belt is mounted on a pivotable lever and on the thickness of the next set of clock to clock printed product. The positioning of the lever is rather than a running wheel, which is mounted on a cam on the lever and rolls.

[63]

[0023] The cam is mounted directly on the shaft of the drive of the adjusting means, which the desired position for each single clock from a control unit receives. The roller is biased to the open cam with a tension spring used, what the lever for removing a paper jam overload allows, lift of the cam. This is the mechanism before overload protected. The lever on the left and right sides each have their own drive can be adjusted to a desired position and individually.

[64]

[0024] The essential advantages of the device according to the invention can be seen as follows:

[65]

[0025] Such a device allows, constant high cutting quality productions to travel, in which the product thickness of clock to clock will be different. The conveying device of the device also offers the conditions, the fine adjustment of the desired position of the first toothed belt wheel manually during the production or function of the printed product thickness can be carried out automatically. Those conditions are given, in which the date and duration of the thickness adjustment depending on the thickness or the format of the printed product can be made. By disengagement of the roller from the cam in the event of a paper jam, the mechanism is protected against overload.

Brief description of Figures

[66]

[0026] Example embodiments of the method and apparatus according to the invention are described in more detail by the following Figures. All for the direct understanding of the invention are not essential elements have been omitted. It shows:

[67]

Figure 1.

[68]

Figure 2.

[69]

Figure 3.

[70]

Fig.4 type 6

[71]

Figure 7.

[72]

Figure 8.

[73]

Figure 9.

[74]

Fig.10

[75]

Fig.11, 12

[76]

Fig.13

[77]

Fig.14

[78]

Fig.15

[79]

a cutting means of the device according to the invention;

[80]

a transporting device of the cutting device;

[81]

two adjustment means of the transporting device, wherein the representation is a view from below:

[82]

a transporting device according to the invention;

[83]

a saddle stitcher consisting essentially of investors, a stitching station and a cutting device;

[84]

a detailed view on the position of the conveyed printing product in the cutting device;

[85]

a mechanical structure of the transporting device and in particular the adjustment device, figfig. corresponds to 3;

[86]

the mechanical assembly according to figfig. 9 from above;

[87]

the kinematics of the adjusting means in connection with the lifting movement;

[88]

the transfer of a printed product having a thickness of 5 mm;

[89]

the transfer of a printed product having a thickness of 10 mm;

[90]

the further conveying the printed product transferred.

[91]

[0027] 1 Shows a representative example of a cutting device 1 for three figfig.-sided trimming printed products 5th a knife 2 lifting device, which has a separate drive 3, is operated in a lifting movement and determines the machine cycle 1st the cutter on the at least one knife blade lifting device for the front edge trim 2 can front and side knives 4.2 4.1 - for the head and foot of the printed products 5 are fixed (see figfig. 2) trimming. In this blades each have an outer cutter 4.1 ', 4.2' and each a undercutter 4.1 ", 4.2" on. The printed products 5 are represented by a 2 figfig. conveyor 6, 7 via a separate drive has, firstly for cutting position for the leading edge trimming, cutting position for the head and foot trimming then simultaneously - and then to a subsequent transfer position, not shown transports. The printed products 5 are completely stopped during the cutting operation. A previous product supply ensures, that the distance of 28 consecutive printed products is always the same cyclically back 5, the positions of the printed products in the transport direction T on the clock synchronized 5 2 5 transfers the printed products to the succeeding the blade lifting device and conveyor 6 (2 figfig.). In the control unit 9 for the knife 2 lifting device 1 is also a figfig. shown.

[92]

[0028] Figfig. 2 shows the conveyor 6, 5 which the printed products transported to the cutting positions. In the cutting position for the leading edge trimming the printed products with the aid of mechanical stops are aligned in the transport direction T 5 8. A control unit connected to the drive by means of a belt drive drives the conveyor 10 7 6 11 an upper and a lower shaft 12, 12 'and two upper or two lower conveyor belts 13.13' to. On both sides of the conveyor are each between a pair of cooperating conveyor belts the printed products 5 6 13, 13' gripped and transported. The contact pressure is generated via a plurality of printing elements for gripping the printed products 5 14, which are arranged one behind the other in the transport direction T.

[93]

[0029] 2 Is now further described the figfig. Fieranziehung figfig. 3. By the spatial configuration of the representations is shown on both sides a respective adjustment device 15 of the transporter 6 better represented. A further spatial representation of the conveyor 6 and in particular the adjustment device 15 is 10 and out from the figfig. 9.

[94]

[0030] Shown by the adjusting means 15 is the conveyor 6 on the thickness of the printed products 5 set. The adjustment means 15 to 16 each have a separate drive, the 17 is mounted on a support plate. The drive 16 is connected with its own control unit 26 (3 figfig.). A cam plate 18 is mounted on the drive 16. On both sides of the conveyor 6 is in each case an upper toothed belt pulley 19, which defines the position of the upper conveyor belt 13, 20 mounted rotatably on a Plebei (figfig. 3). A roller 21 is also mounted on the lever 20.

[95]

[0031] The lever 20 is pulled in the direction of the cam plate 22 with a tension spring 18. Here the roller 21 is pressed to the outer surface of the cam plate 18. The lever 20 is rotatably mounted on a stationary shaft 23.

[96]

[0032] The axis 23 with a side plate connected with said support plate 17 and 27 of the transporting device 6 (2 figfig.). A sensor 24 is mounted in the support plate 17. The sensor 24 detects a disk 25 (3 figfig.), which is connected with the lever 20. So that the position of the lever 20 is determined. The two lower conveyor belts 13 'act respectively with at least one lower toothed belt pulley 19' (13 - 15 figfig.) together.

[97]

[0033] In this example the adjustment device 15 consists of two assemblies, type and number of parts extending from the identical assembling. An assembly of the preceding description is on the left side shield 27 corresponding conveyor 6 fixed. The other assembly is mounted on the right side plate 27 of the transporting device 6.

[98]

[0034] The operation of the cutting device 1 is 1 - 3 under taking the figfig. the following:

[99]

[0035] The first printed product 5 is not shown in the transport direction T from the product supply at its back 28 aligned and synchronized with the cycle of the blade lifting device 2. Before the transfer of the printed product to the conveyor 5 6 16 15 18 the cam rotates the drive the adjustment device in the predetermined position by the control unit 26. During the movement of the cam roller rolls on the outer surface of the cam 18 from 21 18, 20 due to the force of the tension spring 22 and the lever is pivoted to the new position. Together with the lever 20 guides the upper toothed belt pulley 19 and the upper conveyor belt positioned pivotal movement from the printed product from the product supply 13 for assuming the 5.

[100]

[0036] The printed product then passes into the conveyor 5 and 6 between the conveyor belts 13.13 ' gripped. The drive 7 6 selectively brakes and drives the printed product from the conveyor to the mechanical stops up 5 to 8. Shortly before the printed product 5 reaches the mechanical stops 8, leads the drive 16 of the adjustment device 15 pivotal movement thereby granting the upper toothed belt pulley 19 with the conveyor belt from 13 5 product from the pressure, so that in the conveying direction T at the mechanical stops 8 aligning this can.

[101]

[0037] 6 Conveyor transports the slightly longer than is theoretically necessary, so that the printed product 5 8 passes to the mechanical stops. This chute the conveyor belts 13, 13 'slightly above the printed product 5 and drawing it against the mechanical stops briefly holding the conveyor belts 8th 13.13' to. The printed product 5 with a pressing element (8 figfig.) 29 is on the undercutter 4.1 " and pressed from the outer cutter 4.1 ' cut. After cutting the leads 15 and 16 the drive setting means lowers the upper toothed belt pulley 19 and again a pivotal movement from the upper conveyor belt onto the printed product from 5 to 13.

[102]

[0038] Thereafter accelerated the drive 7 the conveyor belts 13, 13' and the printed product is 5 - head and foot trimming position for simultaneously transported. At the same time the next printed product 5 from the product delivery to the conveyor 6 and transferred to the mechanical stops 8 transported.

[103]

[0039] The drive 16 rotates the cam 18 after each restart of the machine in the direction, in which the conveyor belt 13 of printed product 5 is lifted, to the sensor 24 detects the disk 25 on the lever 20. This is the drive 16 of the adjusting means 15 in the control unit 26 deposited on the referenced value.

[104]

[0040] The use of adjusting means 15 is also very well possible cutting devices, which differ from the example described. Are subsequently aspects of different cutting devices described:

[105]

[0041] Described in example 1 - 3 according to an upper toothed belt pulley 19 and thus an upper figfig. are conveyor belt 13 positioned in their vertical position. With the adjusting means 15 could also other components, such as rollers, guide plates or sensors, are positioned precisely at the desired level or product thickness.

[106]

[0042] Described in example 1 - 3 are the left and right upper conveyor belt figfig. according to 13 with the adjustment device positioned downstream of the Vorderkantenbeschnitts region 15. The need for two pairs of conveyor belts 13, 13' in the establishment conveyor 6 from the described minimum and maximum format of the printed products 5 to be processed.

[107]

[0043] The adjustment device 15 could also wherein cutting devices are used, which only a pair of conveyor belts 13, 13 'or more than two pairs of conveyor belts 13, 13' have.

[108]

[0044] Accordingly either one or more than two assemblies of the adjusting device 15 could also be used. The adjustment device 15 could also be adapted in such a way, that in each case two upper toothed belt wheels 19 with a lever 20 are positioned. This would be, e.g. for a transporting apparatus 6 with four upper conveyor belts 13, an adjusting device 15 with only two assemblies.

[109]

[0045] Described in example 1 - 3 are the two upper conveyor belts positioned vertically according to figfig. 13. This lifting conveyor belts when lifted upwardly from the direction of the printed product 5 13 off. movement results therefrom for the described example, that the position of the undercutter 4.1 ", 4.2" the cutter 1 and the two lower conveyor belts 13' of the transporting device 6 is fixed. This is the underside of the printed product 5 each on a fixed transportation height, on which it is transported by the cutter 1. The adjustment of 5 in this embodiment is thinner on thicker printed products always rather than upwards. The adjustment means 15 the upper conveyor belts 13 therefore moving upwards in the vertical direction.

[110]

[0046] The adjustment device 15 could also be used in an alternative embodiment, a component in a vertical direction downwardly or laterally, e.g. transverse, direction T to positioning.

[111]

[0047] The advantages of the aforementioned embodiments are the following:

[112]

[0048] 15 The adjustment device comprises a respective separate drive 16 for positioning the left and right conveyor belt 13. The drives of the adjustment means of the respective control unit 26 16 15 are here independent of one another and independently of the remaining drives 3 and 7 of the cutting device 1 and the conveying device 6 with a driven individual signal.

[113]

[0049] On the other hand are in the known solutions in this scope (drives) the left and right side of the adjustment device mechanically linked to one another. For example a multi-tooth or a polygonal shaft shaft will used. The timing of the movement is made with a cam, which is attached mechanically to the clock of the blade lifting device. Adjusting the amplitude of the movement when the machine is stopped and it may be a fixed, mechanical offset from the left to the right side are adjusted.

[114]

[0050] On the 16 drives the adjustment means 15 raises the following advantages:

[115]

By the two separate drives - 16 from the state of the technique known mechanical coupling accounted for the left and right sides, which would lead across the cutting device 1. This produces a better accessibility in the cutter 1, e.g. printed products to remove from the driving device 6 5 deadlocked. By the lack of coupling can be mounting - and service work, such as the change of the conveyor belts 13, 13', faster and thus more performing.

[116]

Individual activation of the drives via the control unit 16 - 26 for the left and right side of the conveyor the motion profile can independently of one another and independently of the remaining drives 3 and 6 7 6 1 of the cutting device and the conveying device are defined. This makes it possible, the amplitude and the timing of the movement individually on each individual printed product 5 adapt. This function is printed products 5 unilaterally with greater product thickness, e.g. due to a goods pattern bonded, required. It must not necessarily be present at each printed product were pattern 5. The movement can be adjusted for each individual printed product 5, depending upon, whether or not a product pattern is glued.

[117]

The bulkiness of the printed products can be taken into account - 5. Wherein bulky printed products 5 can the amplitude to the mechanical stops when lifting the conveyor belt 13 8 depending on the thickness of the printed products 5 are increased, so that they can better alignment.

[118]

- When failures occur, such as jammed in the printed products 5 6 conveyor, the conveyor belts 13 independently of the current state of the cutting device 1 can be lifted off, so that the fault can be more easily overcome.

[119]

- Wherein a thin printed product with a very thick back the upper conveyor belts 28 5 can later be sold 13 onto the printed product 5, when the back 28 the timing pulley 19 has passed already, so that the printed product 5 with the timing pulley 28 is braked and comes back at 19.

[120]

[0051] The cam plate 18 is in the operating range designed such, that the contour corresponds to its outer surface a wound linear pitch. The decrease of the distance from the axis to the outer or to - 18 per cam angle degree put back always constant.

[121]

[0052] On the other hand is in the known solutions in this scope (cam) the adjusting movement via a mechanical cam controlled, which is coupled to the clock of the device. The adjusting movement is fixed due to the curved track in the disk and is dependent on the speed of the device set.

[122]

[0053] On the cam plate 18 of the adjustment device 15 there are the following advantages:

[123]

- The wound, the outer surface of the cam plate 18 serves only the translation of linear pitch Drehin a pivotal movement. The position, speed and acceleration can be controlled via the control unit 26 for the entire adjustment movement purely and is not dependent on the direction of rotation or speed of the cutter 1.

[124]

[0054] 4 - 6 Also show a already figfig. described above the thickness of the prior art adjustable device intermittently subsequent printed products.

[125]

[0055] Figfig. 7 shows a saddle stitcher 30 31 consisting of investors, a stitching station 32 and a downstream cutter 1, in which the elements and aggregates of the transporting device 6 according to the preceding figfig. 1 - 3 are accommodated.

[126]

[0056] The saddle stitcher 30 is substantially the initial situation for the invention is training. In the production and/or digitally printed sheets when a binding selective type, each printed product 5 can be unique, the printed sheets comprises a certain number, which has a direct influence on the product thickness and therefore directly related, that the staples must be different for each printed product 5 long, should be maximized the stitching quality. At speeds of the saddle stitcher 30 supports and more clocks per hour produced 9o00 printed products 5 extremely efficiently and flexibly. Thanks to its space-saving design and high automation level this saddle stitcher 30 forms a strong production for smallest, small to average requirements.

[127]

[0057] The stitcher 30 has at least one setup wizard shown on, which the operator by the applicator device gradually leads, therefore 31 to investors towards downstream (three cutter) is shown in the stitcher 1st cutter 30 extremely simply furnished. On this saddle stitcher 30 elements are incorporated, which continuously determining the product thickness, so that the stapling process can be performed then with lengths of wire, which are designed for the product thickness. The stitcher 30 has of course shown on electronic product tracking, not shown collecting chain extending from a downstream cutter (three cutter) extend up to 1. This saddle stitcher 30 is equipped with the stitching station 32, is capable of, 5 printed products with varying thicknesses and constant quality of clock to clock product stapling clip, wherein the settings for the thickness variance between two stitches is effected dynamically during operation.

[128]

[0058] The variable wire length is via an external wire feed transmission using a transmission wire insertion dissolved, it is driven with an independent drive, and is free from the rest of the mechanism. A certain rotational movement of the motor corresponds to a particular length of wire. It is generally true, that the length of the wire depends on each section, as the end product thickness is to stitching, constituted by a product thickness measurement is determined before the stitching and during operation.

[129]

[0059] For this purpose is a variable clamp via a stapling head housing also not shown for symmetry the stitching station 32 belonging used knife box, wherein the staple through a direct on a stapling head driven closed cam symmetry (spiral) sure can be adjusted, the position of the knife box and thus defines the position horizontally guided, at which the required for the respective staple stitching wire is cut. The drive is here on the stapling head mounted and thus makes the reciprocating movement of a stitching carriage with. The horizontal position of the knife box depends on the respective length of each wire portion from, and so it is to be stitched by the respective dependent on product thickness, thickness measurement by a product before the stitching and during operation is determined.

[130]

[0060] 8 Is a view of the conveyor in the cutter 6 figfig. over 1 in accordance with the 2nd and shown here is the portion of the Vorderkantenbeschnittes figfig. 1 with at least one front knife 4.1, into operative connection with the corresponding mechanical stops is 8. Then the area is downstream with the side blades showing KopfVFussbeschnitt 4.2.

[131]

[0061] Figfig. 9 corresponds to the already explained figfig. 3, wherein auxiliary elements are still received therein. From this point of view, the view is about 90° twisted position relative to figfig. figfig. according to 10 as a 9 to understand.

[132]

[0062] 11 And 12 by the cam 18 on the show figfig. roller 33 21 injected stroke movement, which represents a measure for the various thicknesses of the printed products 5. The tension of the tension spring 22 can be seen well in this context (see also figfig. 3). The final purpose of this stroke movement is emerging from the figfig. 33 13 - 15, in which the processing are shown different product thickness. In such a printed product having a thickness of 5 mm for 5 figfig. 13, 14 for such a thickness of 10 mm or in figfig..

[133]

[0063] 13 And 14 further in the course of the upper conveyor belt 13 integral figfig. (see also figfig. 3) and the lower conveyor belt 13 'clear, and represented, and how these conveyor belts 13, 13' in operative connection to one another, for collection and transfer of the respective printing product 5 in the conveying direction 14 is in part of a further degree of freedom concerning the adjustment of the thickness 34 figfig. conveyor 6 to the printed product 5 out to be processed.

[134]

[0064] 15 Figfig. finally shows the printing product 35 advance 5.



[135]

The invention concerns a method and a device for transporting printed products variable thickness by a cutting device, a knife and a transporting device which lifting device (6) comprises, wherein the conveyor (6) with a control unit (10), with at least one conveyor belt (13, 13 ') lower and an upper, comprising at least one pair of conveyor belts (13, 13') each operatively connected form, with a height-adjustable first timing pulley (19), with a drive (7) and with at least one adjustment device with a drive (16) for adjusting a vertical spacing of the conveyor belts (13, 13') is formed, characterized in that each adjusting means a separate drive (16) and has said drive (16) of a control unit of clock to clock is driven independently.



1. Method for transporting printed products variable thickness (5) by a cutting device (1), wherein the cutting device (1) with at least a one component device (15) transport means having (6) is operated, wherein means for individually adjusting the transporting device (6) on the thickness of the each in a transport direction T by the cutter (1) printed products to be conveyed (5) are present, wherein the transporting means (6) for individual adjustment to the thickness of the respective printing product (5) over at least an upper conveyor belt (13) and at least a lower conveyor belt (13 '), which at least one pair of conveyor belts (13, 13') each operatively connected form, is operated, which during further conveyance transportation beginning and at least one depending on the thickness of the printed product (5) controlled continuous or intermediate contact pressure on the printed product (5) exercise, the conveyor belts (13, 13 ') and that at least one toothed belt pulley (19, 19') have each, which is operated individually.

2. Method according to claim 1, characterized in that the conveying device (6) comprising two pairs of conveyor belts (13, 13') is operated, wherein the two pairs laterally for printed product (5) are arranged and the printed product (5) transversely to the head and foot side transport direction T detecting.

3. Method according to claim 1 and/or 2, characterized in that the method comprises the steps of:

a is) the position of a first toothed belt (19, 19') is based on the instruction value of a wheel control unit (26) of the setting device (15) on the printed product thickness of the next clock set;

b is) the printed product (5) is between at least an upper and a lower conveyor belt (13.13 ') detected and retracted, wherein such a pair of conveyor belts (13, 13') preferably cut back - and foot side parallel to the transportation direction T of each printed product (5) is arranged;

d) prior to the first cutting process in the cutting device (1) is the printed product (5) along one of mechanical stops (8) aligned predetermined plane, wherein the first timing pulley (19, 19 ') just before the printed product (5) the stops (8) reaches the pressure product (5) is easily lifted so far, so that this with a reduced contact force between the upper and lower conveyor belts (13, 13') and clamped to the stops (8) aligning can;

d is) the contact force on the printed product (5) (13, 13') against the end of the transportation by the conveyor belts is reduced, wherein a residual force is maintained, which only in the region of the spine over a large area or selectively (28) the printing product (5) acts; and

s) (13, 13') the conveyor belts are stopped, as soon as the printed product (5) reaches the cutting location.

4. Process according to one or more of the preceding claims, characterized in that the pressing force in the region of the spine (28) the printing product (5) is maintained selectively, by the front plane of the upper conveyor belt (13) while maintaining the force along the spine local (28) is maintained, while the rest of the printed product active length of the upper conveyor belt (13) counter to the conveying direction T of the printed product (5) angularly lifts a few degrees, such, that between surface of the printed product (5) and undersurface of the upper conveyor belt (13) forms a wedge-shaped gap, its zero point along or in the region of the spine (28) the printing product (5) coincides.

5. Method according to one or more of the preceding claims, characterized in that the adjustment device (15) with a respective control unit (26) cooperates, the a separate drive (16) of the adjusting means (15) controls independently.

6. Device for transporting printed products variable thickness (5) by a cutting device (1), which a blade type lifting device (2) and a conveyor (6) comprises, wherein the conveyor (6) with a control unit (10), with at least one conveyor belt (13, 13 ') lower and an upper, comprising at least one pair of conveyor belts (13, 13') each operatively connected form, with a height-adjustable first timing pulley (19, 19 '), with a drive (7) and with at least one adjustment device (15) with a drive (16) for adjusting a vertical spacing of the conveyor belts (13, 13') is formed, characterized in that each adjusting means (15) a separate drive (16) and has said drive (16) of a control unit (26) of clock to clock is driven independently.

7. Device according to claim 6, characterized in that the adjustment device (15) the upper conveyor belt (13) moves upwards in the vertical direction.

8. Device according to claim 6, characterized in that the conveying device (6) two upper and two lower, (13, 13 ') conveyor belts each operatively connected together in pairs and each pair of conveyor belts (13, 13') means a one part (15) with a drive (16) comprises, wherein a respective one of the two drives by (16) (19, 19 ') with the two first timing pulley be acted upon by upper conveyor belts (13) or with the two lower conveyor belts being arranged cooperatively (13') and an independent activation of the drives (16) by a signal of the control unit (26) takes place.

9. Device according to claim 6, characterized in that each adjusting means (15) an open cam (18) has.

10. Device according to claim 9, characterized in that the cam (18) directly on the shaft of the drive (16) of the setting device (15) is fixed.