JP2012131228A - Device for attaching cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which attaches and positions a cover supplied to a cover supply station by a conveyance system on a content of a book, which has an adhesive layer and is delivered in a conveying direction by the conveyance system of the content, wherein a pressing base including a pressing surface approximately horizontal to a cover attaching/compression-bonding station is arranged so as to move vertically and/or horizontally, and the conveyance system driven by individual drive devices is improved.SOLUTION: The pressing base (28) includes an entraining body (29). The entraining body (29)projects from the pressing surface (24).

Description

  The present invention relates to an apparatus for positioning by attaching a cover sheet supplied to a cover sheet supply station by a transport system on the contents of a book provided with an adhesive layer, which is sent in the transport direction by the transport system of the contents.

  A perfect binding machine produces booklets or book contents (text) joined with an adhesive in bookbinding, and the collated signatures and / or sheets that become the contents are glue, glue or glue It is bound by applying the agent to a pre-processed back. The terms glue and adhesive are used interchangeably in the following. Possible binding methods and production forms are influenced by the mechanical equipment. Regarding mechanical equipment, there are mainly functional unit contents transport system, contents supply station, back processing, back firming, intermediate drying, side glue, back reinforcement, cover application and pressing, cover crimping and drying To do.

  In the German Federal Republic of Utility Model Registration No. 202005007, a wireless binding machine, also called a bookbinding machine, is described. The saddle stitcher includes a conveyance system that includes a conveyance unit that travels around a turning wheel and a plurality of clamps that are attached to the conveyance unit at an interval to clamp a sheet stack. ing. The clamp carries the sheet stack and glued contents (adhesive applied) through various processing stations.

  When producing a book joined with an adhesive, the contents and the cover are joined by a cover attaching / crimping station. Through the cover sheet supply station, the cover sheet, which is sometimes folded by grooving, is positioned as a directional adjustment and is first supplied to the cover sheet station. There, the cover is lightly pressed against the contents of which the adhesive has been applied to the back and is thereby fixed. At the subsequent cover crimping station, the cover is crimped to the contents while applying force by the back crimping plate and the side crimping rail. Thus, the book joined with the adhesive has an angular spine shape. In relation to the basis weight of the cover, the adhesive used and the machine speed, the cover may shift with respect to the contents when the cover is applied at the cover station. Thus, at the cover crimping station, the cover is not properly joined to the contents, and a book is formed that does not meet the high requirements regarding the quality of the booklet joined with the adhesive.

  In German Patent 3,340,859, a cover attaching / crimping device for a bookbinding machine is described. This device is provided with a side crimping rail and a back crimping plate, and the side crimping rail and the back crimping plate perform a horizontal movement or a vertical movement for crimping the cover to the contents, and a conveying system for the contents. Can move synchronously. The side crimp rails are equipped with suction elements or clamping elements, which in each case hold the cover in a positioned position until it is crimped against the back of the contents, so that between the cover and the back of the contents Prevent relative movement. Due to the drawbacks of this cover and crimping device, the suction element or clamping element requires a separate control device for periodically operating the suction element or clamping element with respect to the movement of the crimping element and the contents conveying system. . According to other disadvantages, the suction output of the suction element needs to be adapted according to the surface structure of the cover in order to ensure a sufficient suction force for fixing the cover. Cleaning and maintenance of the suction element or the clamping element is troublesome. Another cover attaching and crimping device is known from EP 1 434 805 and EP 2020 305.

  In German Patent Application No. 102008059079, there is provided an apparatus for attaching an individual cover by a cover attaching machine to the contents of a printing material (particularly, the contents of a book) that moves in the conveying direction from the conveying system of the contents of the printing material. A known device for attaching a cover is provided with a pressing element which is movable in the vertical direction. The pressing element has a substantially horizontal pressing surface, and the pressing surface is formed by a pressing plate. By means of the pressure plate, the cover is still attached to the back of the contents of the substrate with the viscous adhesive. According to this invention, the pressing element includes a needle-shaped element for fixing the cover, and the needle-shaped element protrudes from the pressing surface. The needle-like element is a needle having a small diameter, particularly at its tip. The needle-like element enters the cover placed on the horizontal pressing surface, and therefore forms the cover with a shape connection (the shape connection means a connection based on the mutual geometrical relationship such as fitting or meshing). Secure, thereby preventing the cover from slipping before the adhesive solidifies during cover attachment. Such a configuration is preferred, and the needle-like element ensures the fixing of the cover, without the need for complicated controls or adjustments. Maintenance and cleaning of the needle-like element is also easily realized. Here, the dimension setting of the needle-like element regarding many cover materials is mentioned as a problem.

Federal Republic of Germany Utility Model Registration No. 20200507012 Specification German Patent 3,340,859 European Patent Application No. 1834805 European Patent Application Publication No. 2020305 German Patent Application No. 102008059079

  Accordingly, the object of the present invention is to provide an improved apparatus for attaching a cover as described at the beginning to eliminate the disadvantages of the background art.

  According to the configuration of the present invention for solving this problem, a cover supplied to the cover supply station by the transport system is attached to the contents of the book having an adhesive layer that is sent in the transport direction by the transport system of the contents. A vertical and / or horizontal pressing table with a substantially horizontal pressing surface of the cover attaching / crimping station is provided, and the transport system is driven by individual driving devices. In this case, the pressing table includes an entrainment body, and the entrainment body protrudes from the pressing surface.

  Preferably, the entrainment body is attached to the pressing table at a fixed position.

  Preferably, the entrainment body is movable in the vertical and / or horizontal direction by means of a pneumatic cylinder.

  Preferably, the cover supply station comprises a pressing element, which is fixedly arranged on the housing relative to the cover transport movement.

  Preferably, the pressing element is a pressing spring.

  Preferably, the holding element is a vacuum shoe.

  Preferably, the holding element is a brake spring.

  Preferably, the brake spring is adapted to be pressurized by a pneumatic cylinder.

  Preferably, the hold-down element is adjusted with a variable pressure.

  According to the configuration of the apparatus for attaching and positioning a cover according to the present invention, a pressing stand having a substantially horizontal pressing surface of the cover attaching / crimping station is provided. The front cover is supplied to the front cover attaching / crimping station by the transport system of the front cover supply station, and is attached while being positioned on the contents provided with the adhesive layer, and is pressed. The contents are sent in the transport direction by a separate transport system through the cover attachment / crimping station. The transport system is driven by individual driving devices. Positioning of the cover is performed by an entrainment body, and the entrainment body is attached to the pressing table and protrudes from the pressing surface. In this case, the entrainment body can be attached to the pressing stand at a fixed position, or can be attached to the pressing stand so as to be movable in the vertical direction and / or the horizontal direction via the pneumatic cylinder.

  According to a preferred embodiment, the cover supply station additionally comprises a holding element. The pressing element is disposed in a fixed housing relative to the cover transport movement. Preferably, the pressing element is configured as a pressing spring or a vacuum shoe or a brake spring, and the pressing element can variably adjust the pressure exerted on the cover.

Advantages of the device according to the invention:
・ There is no troublesome positioning mechanism (the guide rail of the cover attachment machine is only provided with fixed position stoppers and holding springs)
・ Simple adjustment and very good reproducibility of the cover position relative to the contents, which is performed via the machine controller or operating surface
-There is no cumbersome and expensive additional automation for storing and recalling pre-adjustment values via a job management device to reduce the mounting time,
・ Resistant to dirt due to a stopper mounted in place without incorporating a spring stroke,
-There is no wear and no maintenance work (non-contact positioning of the clamp),
• Mechanical tolerances do not affect accuracy in the cover supply by the entrainment chain.

It is a figure which shows a wireless binding machine roughly. It is a figure which shows the crimping | compression-bonding station by background art. It is a figure which shows the cover attachment and crimping | compression-bonding station by this invention. It is a figure which shows the structure of the entrainment body and pressing device by this invention. It is a figure which shows the structure of the entrainment body and pressing device by this invention. It is a figure which shows the structure of the entrainment body and pressing device by this invention. It is a figure which shows the structure of the entrainment body and pressing device by this invention. It is a figure which shows the structure of the entrainment body and pressing device by this invention. It is a figure which shows the structure of the entrainment body and pressing device by this invention.

  Embodiments of the present invention will be specifically described below with reference to the drawings.

  FIG. 1 shows a part of the perfect binding machine 1000 together with a part of a content transport system 33 attached thereto, and the content transport system 33 includes a clamp 1002 to which a clamp 1002 is attached. It is formed by a drive-type circulating chain. The chain drive device that circulates is formed by a servo motor (not shown), for example. The contents 100 arrive from the collating machine 1010 and are supplied to the binding machine 1000 in the transport direction T. The contents 100 are gripped by the clamp 1002 and conveyed toward the first processing station (back processing station 1020). The back machining station 1020 can include a plurality of machining tools not shown. The contents 100 whose back has been processed are subsequently conveyed to a gluing station (adhesive application station) 1030 where the adhesive is applied. In subsequent back-stiffening stations 1040, back-sticking can be selectively attached. In the device 20.1 for attaching and fixing the cover, the cover 101 supplied from the cover supply station 1 is attached and fixed to the contents 100, and is crimped and joined to each other in the device 20.2 for crimping the cover. (Bound). The contents 100 are then conveyed over the cooling section 1060 toward the cutting station 3 (not shown in detail).

  FIG. 2 shows an apparatus 20.2 for crimping the cover of the cover attaching / crimping station 2 according to the background art. The collated signature, for example, the contents 100 made of a paper sheet is held or clamped by the contents clamp 1002 and conveyed from the clamp 1002 in the conveying direction T along a straight line at a substantially constant speed. The conveyance is performed by a content conveyance system 33 (FIG. 1). The content conveyance system 33 is composed of a chain that circulates (not shown), and a clamp 1002 as a conveyance tongue is attached to the chain. . The chain is driven by a servo motor (not shown).

  In the machine position of the device 20.2 for crimping the cover, the cover 101 is preferably pressed or pressed against the contents 100 from below in the vertical direction (upward), with the back 42 of the contents 100 being pressed. And preferably with an adhesive or glue. The spine 42 and / or cover 101 is pre-applied with an adhesive or glue, for example an adhesive that melts at high temperature or a cold glue, at a station located upstream of the stapler.

  The cover 101 is pressed by the vertical movement 43 (vertical movement) of the frame 44 along the rail 45 of the device 20.2 for pressing the cover. The frame 44 includes a first pressure-bonding element (or pressure-bonding plate 21), particularly the pressure-bonding base 21. As a result, a pressure necessary for joining the cover sheet 101 and the contents 100 is formed.

  In order to follow the conveying movement of the contents 100 during crimping, the crimping table 21 is supported on the rail 46 of the frame 44 as a carriage and is movable or slidable. The crimping table 21 performs horizontal movement 47 (advance / retreat movement) during crimping, and the horizontal movement 47 is parallel to the conveyance direction T, and is constant corresponding to the conveyance speed of the contents 100 during the feeding movement. Done at a speed of. Accordingly, the crimping is performed while the movement between the transported contents 100 and the moving crimping table 21 is synchronous.

  Since the cover 100 is joined to the contents 100 not only at the back 42 but also at the side near the back of the contents 100, the application of adhesive or glue (in the aforementioned station of the perfect binding machine) Done.

  The crimping of the side of the cover 101 at the side portion is performed by the translational movement 48 (approaching / separating movement) of at least one second crimping element 22 or the second and third crimping elements 22, 23. This is done by means of a crimping device 22. For this purpose, the pressure-bonding rails 22 and 23 are supported by the rails 49 of the pressure-bonding table 21 and can move or slide. The distance between the pressure-bonding rails 22 and 23 is initially larger by a desired dimension than the thickness of the contents (the width of the contents 100 extending in the direction transverse to the conveying direction T). The so-called “advance width” (corresponding to twice the lateral entry interval between the contents 100 and the pressure-bonding rails 22, 23 plus the thickness of the contents) over the prescribed movement distance of the pressure-bonding table 21 ( It remains substantially constant (in the first step of the side crimp). Thereafter, the crimping rails 22 and 23 that move synchronously with the contents 100 (in the second step of side crimping) move closer together to crimp the cover sideways.

  By the superimposition of the vertical motion 43 and the horizontal motion 47, the crimping table 21 performs the orbital motion 50. The orbital motion 50 is formed by a servo motor 58 in combination with a corresponding coupling transmission device 64 (FIGS. 2 and 4). Further, the crimping rails 22 and 23 perform the reverse orbital motion 51 by superimposing the translational motion 48 and the horizontal motion 47, and the orbital motion 51 is still superimposed on the orbital motion 50.

  The formation of the crimping movement (translational movement) of each crimping rail 22, 23 is preferably arranged in a fixed position or fixed to the frame (with respect to the frame of the device 20.2 for crimping the cover) drive unit 52. Thus, it is performed on both sides of the device 20.2 for crimping the cover, that is, an original drive unit 52 is preferably arranged corresponding to each crimping rail 22, 23.

  The drive unit 52 preferably comprises an individually controllable servomotor 53, which is (for example via a pulley not shown or such a transmission means for the sake of clarity of the drawing). The rotatable spindle 54 is driven. The rotational movement of the spindle 54 introduced by the servo motor 53 is slidable (via a spindle nut not shown for clarity of the drawing provided inside the slidable element 55). Is transmitted to a controllable translational movement 48 of the active element 55.

  As an alternative to the described inexpensive drive unit 52 comprising a linear unit comprising a spindle 54 and a slidable element 55 and a servo motor 53, a drive unit 52 comprising a linear servo motor is used. Also good.

  Connected to the slidable element 55 is a connecting rod 56 at the first end on the drive side, which connects the translational movement 48 from the drive unit 52 or the slidable element 55. , And transmitted to the crimping rails 22 and 23 arranged corresponding to the drive unit 52 or the slidable element 55. For this purpose, the connecting rod 56 is pivotally attached to the crimping rails 22 and 23 arranged corresponding to the connecting rod 56 at the second end portion on the driven side. Accordingly, the pivot point 57 on the drive side of the connecting rod 56 is slidable while being controlled according to the controllable translational movement 48 of the slidable element 55. Preferably, the pivot point 57 on the driving side is located outside the crimping table 21 that moves horizontally (forward and backward movement) in the lateral direction (laterally with respect to the transport direction T).

  FIG. 3 schematically shows a cover attaching / crimping station 2 according to the present invention. The cover attaching / crimping station 2 is provided between the cover supplying station 1 (FIG. 1) and the subsequent cooling section 1060 and / or the cutting station 3 (indicated by symbols in FIG. 1) in the perfect binding machine 1000. ing. In a station (not shown) provided on the upstream side of the binding machine, the contents 100 are already processed, that is, the contents are roughened and an adhesive is applied. The cover sheet is individualized by the cover sheet supply station provided at the position 1 and is sent toward the cover attaching / crimping station 2 in the transport direction T by the transport system 35. The contents 100 are sent through the cover attaching / crimping station 2 toward the cover attaching / crimping station 2 in the conveying direction T in the same manner by the contents conveying system 33 (not shown). In the vicinity of the illustrated cover attaching / crimping station 2, the cover 101 is first lightly pressed against the contents 100, applied in that way, and then firmly pressed onto the contents 100 by pressing force. Accordingly, the cover attaching / crimping station 2 includes a device 20.1 for attaching and fixing the cover and a device 20.2 for crimping the cover.

  At that time, as described above, in the apparatus 20.1 for attaching and fixing the cover, the cover is attached to the pressing table 28 (the pressing table 28 is also attached to the frame 44 of the apparatus for attaching and fixing the cover, and therefore the same. The orbital motion 50 is applied to the glued back 42 of the contents 100 and is fixed by light pressure. For this purpose, the pressing table 28 has a substantially horizontal pressing surface 24. In order to position the cover sheet 101, the pressing table includes an entrainment body 29 protruding from the pressing surface 24. Next, the cover sheet 101 has been already described with reference to FIG.

  FIG. 4 shows a main part related to the conveyance of the cover from the cover supply station 1 to the cover attaching / crimping station 2. The cover sheet supply station 1 includes a transport system 35. The conveyance system 35 includes a chain 60 that circulates and is driven by a servo motor 59 via a chain wheel 62 (the chain wheel 62 is supported by a drive shaft 61). The chain 60 is disposed on the side of the mounting plate 65. The cover sheet 101 is conveyed toward the cover attaching / crimping station 2 in the conveyance direction U by the entraining body 63 (the entraining body 63 is disposed in the chain 60). At that time, the cover sheet 101 is placed on the mounting plate 65 and guided to the cover sheet guide rail 31 on the left and right. The cover 101 is slightly braked by the delayed movement of the entraining body 63 before the time of receipt by the device 20.1 for attaching and fixing the cover of the cover attaching / crimping station 2. In order to support the braking process, pressing elements 30, 34, 36, 37 as holding elements are provided, and the pressing elements 30, 34, 36, 37 are transport systems of the cover sheet supply station 1 during the braking process. The contact between the 35 entraining bodies 63 and the rear edge of the cover 101 is ensured. The pressing element can be configured as, for example, a pressing spring 30 or a vacuum shoe 34 (FIGS. 6 and 7) as an adsorbing member, or a slip spring or a brake spring 36. The brake spring 36 is pressurized by a pneumatic cylinder 37. . The holding element can be attached to the guide rail 31 or the mounting plate 65. Optionally, for example, the brake spring 36 may be attached to a holding device 66 fixed to the housing, and the pneumatic cylinder 37 may be attached to a holding device 67 fixed to the housing. According to an important point in the arrangement structure of the pressing elements, the pressing elements 30, 34, 36, and 37 are fixedly disposed on the housing relative to the cover conveying movement.

  The aspect provided with the brake spring is conceived mainly for holding the cover. Therefore, the raised portion of the cover does not come into early contact with the glued contents. Due to the protuberance of the cover, the cover is not correctly positioned on the entrainment body, and therefore the cover may be displaced when pressed. Another important function is to hold the cover on the entrainment of the cover attachment device during the braking process. For this purpose, it is necessary to use a pressing element, which needs to be adjusted when the cover material has extreme properties. In this case, a small pneumatic cylinder will support. A small pneumatic cylinder can indirectly regulate the holding strength of the brake spring by pressure.

  After the entraining body 63 sinks, the entraining body 29 of the pressing table 28 emerges behind the cover sheet 101 in order to reliably guide the cover sheet 101 in the subsequent process of the pressing movement. Due to the accelerating movement of the connecting transmission device 64 of the cover attaching and crimping station 2 in the subsequent process, the cover 101 is received by the entrainer 29 and accurately positioned.

  After receiving and positioning, the pressing process is carried out by contacting the back of the contents with a pre-applied adhesive layer. During the pressing process of the cover against the contents by the pressing plate, the cover is reliably guided. This prevents the cover from “floating”.

  In the present invention, the delay of the mechanical component means and the technique of positioning the cover by the individual driving devices are combined.

  This is achieved by a very simple mechanical guide of the cover on the pressing platform of the pressing station. At that time, the auxiliary means for positioning is a guide stopper (FIGS. 3 to 6) attached at a fixed position. Thus, the cover can be repeatedly and accurately positioned after the internal conveying clamp by the individual drive devices already in use. Adaptations to other format adjustments can be set electronically and stored in repetitive jobs. Possible automation shortens the wearing time, simplifies operation, and makes adjustments repeatable and accurate. Positioning with respect to the transport clamp is performed in a non-contact manner and therefore no fine adjustment, maintenance or wear occurs.

  FIGS. 6 and 7 show the configuration of the entrainment body 29 and the pressing element configured as the pressing spring 30 and / or the vacuum shoe 34 according to the present invention.

  Another aspect (FIG. 7 and FIG. 8) may be a movable entrainment body instead of the fixed position entrainment body provided in the pressing stand. In this case, the movement is preferably not only in the horizontal direction but also in the vertical direction. In a preferred embodiment, the cover feed movement needs to be precisely adapted to the movement of the press platform in order to lift the entrainment body behind the cover and to position the entrainment body in a subsequent process with accelerated motion. . Relaxation of the accuracy of the movement process is brought about by an entrainment that moves in the vertical direction, and this entrainment rises while positioning. Horizontal movement is also very suitable. In the background of such an embodiment, the positioning of the cover can be realized independently or additionally with respect to the acceleration movement of the pressing table by means of the pressing table accompanying body.

  DESCRIPTION OF SYMBOLS 1 Cover supply station, 2 Cover attachment / crimping station, 3 Cutting station, 20.1 The apparatus which attaches and fixes a cover, 20.2 The apparatus which crimps | bonds a cover, 21 1st crimping element, 22 2nd crimping element, 23 Third pressure-bonding element, 24 Horizontal pressing surface, 28 Pressure-bonding base, 29 Entrainment body, 30 Holding element, 31 Cover guide rail, 32 Pneumatic cylinder, 33 Content transport system, 34 Vacuum shoe, 35 Transport system, 36 Brake spring, 37 pneumatic cylinder, 42 back, 43 vertical motion, 44 frame, 45 rail, 46 rail, 47 horizontal motion, 48 translational motion, 49 rail, 50 orbital motion, 51 orbital motion, 52 drive unit, 53 Servo motor, 54 spindle, 55 Sliding required Element, 56 connecting rod, 57 pivot point, 58 servo motor, 59 servo motor, 60 chain, 61 drive shaft, 62 chain wheel, 63 entrained body, 64 connecting transmission device, 65 mounting plate, 66 fixed to housing Holding device, 67 Holding device fixed to housing, 100 content, 101 cover, 1000 perfect binding machine, 1002 content clamp, 1010 collating machine, 1020 back processing station, 1030 gluing station, 1040 back consolidation station, 1060 cooling section , T transport direction, U transport direction, v vertical body motion, h horizontal body motion

Claims (9)

Cover supplied to the cover supply station (1) by the transport system (35) to the content (100) of the book with an adhesive layer, which is sent in the transport direction (T) by the transport system (33) of the book. A device for positioning with (101),
A pressing table (28) movable in the vertical direction and / or horizontal direction with a substantially horizontal pressing surface (24) of the cover attaching / crimping station is provided, and the transport system (33, 35) is driven individually. In what is driven by the device,
The pressing table (28) includes an entrainment body (29), and the entrainment body (29) is positioned with a cover, characterized in that it projects from the pressing surface (24). apparatus.   2. The device according to claim 1, wherein the entrainment body (29) is mounted in a fixed position on the pressing platform (28).   2. The device according to claim 1, wherein the entrainment body (29) is movable in the vertical and / or horizontal direction by means of a pneumatic cylinder (32).   The cover sheet supply station (1) is provided with a pressing element (30, 34, 36), and the pressing element (30, 34, 36) is fixedly disposed on the housing relative to the cover transport movement. A device according to any one of claims 1 to 3.   The device according to claim 4, wherein the holding element is a holding spring.   5. The device according to claim 4, wherein the holding element is a vacuum shoe (34).   5. The device according to claim 4, wherein the holding element is a brake spring (36).   8. A device according to claim 7, wherein the brake spring (36) is adapted to be pressurized by a pneumatic cylinder (37).   9. The device according to claim 1, wherein the holding element is adapted to be adjusted with a variable pressure.

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