JP2010188726A - Adhesive coating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive coating apparatus which can reduce the blemish of a conventional technique and keep especially an adhesive stockpile section composed in compact. <P>SOLUTION: The apparatus 1 which coats the region near the back of the side face of an inner book 100 with an adhesive 200 includes: an adhesive stockpile section 6; and an adhesive coated disks 2 and 3 which make the adhesive 200 transfer from the adhesive stockpile section 6 to the side face of each inner book 100, and are actuated with the driving device 7. The mutual interval a of both adhesive coated disks 2 and 3 can be adjusted according to the thickness b of the inner book by a position adjusting apparatus 8. The shaft of the driving device 7 and the shaft of the position adjusting apparatus 8 are on the same straight line and fit each other into an insert type. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an apparatus for applying an adhesive as described in the premise of claim 1.

  Devices for applying adhesives are known from the prior art, especially in the bookbinding industry. Of particular importance in the application of adhesives is to apply the correct amount of adhesive on the back or side of the booklet in order to achieve satisfactory adhesion quality and reliable adhesion of the cover. is there. At this time, not only the thickness of the adhesive but also the length and uniformity are important. Furthermore, the adhesive used has a significant meaning for such adhesive quality. In addition to thermoplastic adhesives, reactive adhesives such as polyurethane (PUR) can also be used.

  This type of apparatus for applying an adhesive is used in a bookbinding machine or a perfect binding machine. In that case, the sheet pile or the booklet is sandwiched between the holding portions and is often guided along a straight section. During this movement, the paper pile or the back of the book to be glued slides on a rotating application roller whose part of the circumference is immersed in the glue container in a first step.

  Patent Document 1 shows a pasting machine for a perfect binding machine having a glue container having two application rollers for using a thermoplastic adhesive. Patent Document 2 discloses a coating system for an adhesive, particularly PUR, and the glue container is configured compactly.

  Adhesive is applied to the area near the back of the side surface of the middle book by the transverse glue device in order to manufacture the brochure and the paperback book as well as the pasting of the middle book. In subsequent steps, the cover can be pressed against the glued side as well as the back of the book. For example, the lateral glue device shown in Patent Literature 3 and Patent Literature 4 has two lateral glue disks arranged at intervals, and the booklet is conveyed so as to pass between them. The outer peripheral surface of the side glue device is wetted with an adhesive, and this adhesive is transferred to the side surface of each inner book by rotation. In order to adjust to the thickness of various different bookbinding, the spacing between the transverse glue disks must be adjustable. A disadvantage of the side glue device known from the prior art is that a correspondingly large adhesive reserve is required to accommodate a position adjusting device for changing the spacing between the side glue disks. And if only a small amount of adhesive in the adhesive reserve is circulated and taken out by the side glue disc, the adhesive will crack, which will obviously reduce the quality of the adhesive.

German Patent No. 4013905C2 German Patent Application Publication No. 102006034940A1 German Patent No. 2257614C2 German Patent Application Publication No. 10242259A1

  SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for applying an adhesive that can reduce the disadvantages of the prior art and particularly can make an adhesive storage part compact.

  This object is achieved by an apparatus for applying an adhesive comprising the features of claim 1.

  An apparatus for applying an adhesive to a region near the back of the side surface of the middle book, also referred to as a transverse glue device, has an adhesive storage part disposed below the conveyance path of the middle book. The apparatus further includes a set of adhesive application disks including an adhesive application disk on both sides of the booklet transport path. The adhesive-coated disc, also called a transverse glue disc, is driven by a driving device and transfers the adhesive from the adhesive reserve to the side surfaces of each booklet by its rotation. In order to adjust the device in accordance with the thickness of the different cores, the distance between both adhesive-applied disks can be adjusted by means of a position adjusting device. In particular, it is preferable that the axis of the driving device and the axis of the position adjusting device are on the same straight line. When the driving device and the position adjusting device each have a shaft, the respective rotation axes or central axes overlap each other, in other words, they are positioned on the same straight line. This preferred embodiment of the device for applying the adhesive requires very little design space. Since the drive device and the position adjustment device occupy only a small design space, the size of the adhesive storage part can be minimized. The drive device and the position adjustment device are not separated separately. In a particularly preferred embodiment of the device, the drive device and the position adjustment device are configured to fit in a telescopic manner.

  In a particularly preferred embodiment of the device according to the invention, the position adjustment device is capable of displacing the first adhesive application disc of both adhesive application discs perpendicularly to the transport path of the booklet. To. Thereby, it can adapt to the thickness of a core book. The necessary adjustment distance is defined by the minimum and maximum core thickness, allowing adjustment to the thickness of the core, for example in the range of 5 mm to 60 mm.

  In a particularly preferred embodiment of the device according to the invention, the drive device and / or the position adjustment device each have a drive shaft protruding from the adhesive reserve. This makes it possible to easily drive the drive device or the position adjusting device from outside the stockpile.

  In another preferred embodiment of the device, a translational movement is introduced into the position adjustment device in order to displace the first adhesive application disk.

  Furthermore, the drive device preferably has a plurality of hollow shafts in order to transmit the rotational drive movement to the adhesive application disc. The position adjusting device preferably has at least one shaft. In this way, one or more shafts of the position adjustment device can be at least partially accommodated in the hollow shaft of the drive device, the shafts of these shafts and the hollow shaft being located on the same straight line. .

  In a preferred development of the device according to the invention, each adhesive-coated disc is non-rotatably connected to a bevel gear. Each bevel gear is accompanied by a tooth attached to the hollow shaft of the drive. The bevel gears and the teeth are in mesh with each other, whereby the rotational movement of the hollow shaft is transmitted to each adhesive application disk via the combination of teeth and bevel gears.

  In a particularly preferred development, the device comprises a correction device for displacing the second adhesive application disk perpendicular to the booklet transport path. The correction device usually only allows an adjustment distance of a few millimeters in order to cope with the mushroom bulging (Aufpilzen). If the correction device has a drive shaft protruding from the adhesive storage part, the correction device can be easily driven from outside the adhesive storage part. Preferably, the correction device, in particular its drive shaft, is driven by a rotational correction movement which is converted into a translational movement by the correction device and transmitted to the second adhesive application disk. Thereby, a very accurate position adjustment of the second adhesive-coated disc is possible.

  In a particularly preferred embodiment of the device according to the invention, the rotation axis of the adhesive-coated disc is inclined by approximately + 45 ° or −45 ° with respect to the vertical line. This, together with the compact design of the adhesive stockpile and the entire device, allows a good pumping operation of the adhesive-coated disc.

  By each feature mentioned above, it is possible to constitute an adhesive reserve part very compactly. It is preferable that the size of the adhesive storage part in the direction of the transport path of the middle book, that is, the length of the adhesive storage part substantially corresponds to the diameter of the adhesive application disk. The ratio of the volume of the adhesive reserve to the diameter of the adhesive-coated disc is very small compared to devices known from the prior art. Such an apparatus of the present invention allows for rapid flow of the adhesive, thereby preventing cracks that would degrade the quality of the adhesive. Moreover, since the volume of the adhesive storage part is small, the adhesive can be quickly heated. Furthermore, since the surface area of the adhesive storage part is small, there is an advantage that the evaporation of the adhesive and the emission associated therewith can be reduced.

  The above-described preferred embodiment of the present invention and the above-described preferred development of the present invention constitute a preferred development of the present invention even in any combination.

  For further advantages and preferred embodiments of the invention, reference is made to the dependent claims and to the description of the examples with reference to the accompanying drawings.

It is a three-dimensional figure showing the device concerning the present invention. It is a top view which shows this apparatus. It is the 1st sectional view showing this device and its correction device. It is 2nd sectional drawing which shows this apparatus, its drive device, and a position adjustment apparatus.

  Next, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows an apparatus 1 for applying an adhesive according to the present invention. Hereinafter, this apparatus is referred to as a side glue apparatus 1. The basic components of the horizontal glue device 1 are an adhesive storage section 6 and two adhesive application disks 2 and 3. These adhesive-coated discs are hereinafter referred to as horizontal glue discs 2 and 3. The horizontal glue disks 2 and 3 are spaced apart from each other so that a middle book (not shown) can pass between the horizontal glue disks 2 and 3 along the middle book transport path T. . The horizontal glue disks 2 and 3 are driven by a driving device 7. Adjustment of the distance between the two horizontal glue disks 2 and 3 is performed by the position adjusting device 8 and the correcting device 9.

  This is illustrated in detail in FIG. In order to drive the transverse glue disks 2, 3, the rotational movement ω is transmitted by the drive device 7. In order to displace the first side glue disk 2, a translational position adjustment movement s 1 is transmitted by the position adjustment device 8. In order to displace the second side glue disk 3, the rotational movement r is transmitted by the shaft 9.1 of the correction device 9. Further, referring to FIG. 2, the length l of the adhesive stockpile 6 is clearly shown.

  As shown in FIG. 3, the middle book 100 having a thickness b passes between the horizontal glue disks 2 and 3. The horizontal glue disks 2 and 3 transfer the adhesive 200 taken out from the adhesive storage part 6 to regions near the back of both side surfaces of the core book 100. Referring to FIG. 3, the translational correction motion s2 of the second side glue disk 3 is also clearly shown. The shaft 9.1 of the correction device 9 is supported on both sides. The rotational movement r is converted by the shaft 9.1 into the translational movement (linear movement) s2 of the second bearing block 11 via the thread 9.2.

  Referring to FIG. 4, both the translational position adjustment movement s1 of the first side glue disk 2 and the rotational drive of both side glue disks 2 and 3 are clearly shown. The translational position adjustment movement s1 of the first adhesive application disk 2 is introduced by the translational movement s1 of the first shaft 8.1 of the position adjustment device 8. The position adjustment movement s1 is transmitted from the first shaft 8.1 via the third hollow shaft 7.3. The first bearing block 10 is connected to the third hollow shaft 7.3 and moves together therewith. As a result, the first adhesive application disk 2 also moves, and the distance a between the first side glue disk 2 and the second side glue disk 3 can be changed.

  The horizontal glue disks 2 and 3 are supported by the bearing blocks 10 and 11 so that the rotation shafts 4 and 5 are inclined by about + 45 ° or −45 ° with respect to the vertical line.

  In order to drive the transverse glue disks 2 and 3 in rotation, a rotational drive motion ω is applied to the first hollow shaft 7.1. The first hollow shaft transmits the rotational movement to the second hollow shaft 7.2, and further the second hollow shaft transmits the third hollow shaft 7.3. A sleeve having second teeth 7.7 is flanged to the second hollow shaft 7.2. The second tooth 7.7 meshes with the second bevel gear 7.5 that is non-rotatably joined to the second transverse glue disk 3. A sleeve is similarly flange-joined to the third hollow shaft 7.3. The sleeve holds first teeth 7.6 that mesh with the first bevel gear 7.4. The first bevel gear 7.4 is non-rotatably connected to the first transverse glue disk 2.

  As shown in FIG. 4, the shaft of the driving device 7 and the shaft of the position adjusting device 8 are disposed so as to overlap each other and are located on the same straight line G. The axis | shaft of the drive device 7 means the rotating shaft of three hollow shafts 7.1, 7.2, and 7.3. The axis of the position adjusting device 8 means the central axis of the first shaft 8.1.

DESCRIPTION OF SYMBOLS 1 Horizontal glue apparatus / Apparatus which apply | coats an adhesive 2 1st adhesive application disc (horizontal glue disc)
3 Second adhesive-coated disc (horizontal glue disc)
4 Shaft of first adhesive-applied disc 5 Shaft of second adhesive-applied disc 6 Adhesive storage section 7 Drive device 7.1 First hollow shaft 7.2 Second hollow shaft 7.3 Third Hollow shaft 7.4 First bevel gear 7.5 Second bevel gear 7.6 First tooth 7.7 Second tooth 8 Position adjusting device 8.1 First shaft 8.2 Second shaft 9 Correcting device 9.1 Shaft 9.2 Thread 10 First bearing block 11 Second bearing block 100 Nakamoto 200 Adhesive T Nakamoto transport path G Drive device and position adjusting device shaft a Adhesive application disk Interval b Middle thickness l Adhesive reserve length s1 Translation position adjustment motion s2 Translation correction motion r Rotation motion ω Rotation drive motion

Claims (13)

An adhesive storage part (6) arranged below the conveyance path (T) of the middle book, and the adhesive (200) from the adhesive storage part (6) to the side surface of each middle book (100); A pair of adhesive application discs (2, 3) provided with adhesive application discs (2, 3) positioned on both sides of the transport path T of the middle book and driven by a driving device (7); The side surface of the middle book (100), wherein the distance (a) between the two adhesive-applied disks (2, 3) can be adjusted to the thickness (b) of the middle book by the position adjusting device (8). A device (1) for applying an adhesive (200) to an area near the spine of
A device for applying an adhesive, characterized in that the shaft of the drive device (7) and the shaft of the position adjusting device (8) are on the same straight line.   2. The device according to claim 1, wherein the drive device (7) and the position adjustment device (8) are nested.   The position adjusting device (8) shifts the displacement (s1) of the first adhesive application disk (2) of both the adhesive application disks perpendicularly to the transport path (T) of the booklet. Device according to claim 1 or 2, enabling.   The drive device (7) and / or the position adjustment device (8) each have a drive shaft (7.1, 8.1) protruding from the adhesive reserve (6). 4. The apparatus according to any one of items 3.   Device according to claim 3 or 4, wherein a translational movement (s1) is introduced into the position adjusting device (8) in order to displace the first adhesive application disc (2).   The drive device (7) has a plurality of hollow shafts (7.1, 7.2, 7.3) for transmitting rotational drive motion (ω) to the adhesive application disc (2, 3). 6. The device according to any one of claims 1 to 5, wherein:   7. A device according to claim 6, wherein the position adjustment device (8) comprises at least one shaft (8.1) at least partially housed in the hollow shaft of the drive device.   Each of the adhesive application disks (2, 3) is non-rotatably connected to a bevel gear (7.4, 7.5), and each of the bevel gears (7.4, 7.5) Teeth (7.6; 7.7) provided on the hollow shaft (7.3, 7.2) of the drive device (7) are attached, and the bevel gear (7.4, 7.5) The device according to claim 6 or 7, wherein said teeth (7.6; 7.7) are in mesh with each other.   The apparatus (1) has a correction device (8) for displacing (s2) the second adhesive application disk (3) perpendicularly to the transport path (T) of the booklet. Item 9. The apparatus according to any one of Items 3 to 8.   10. The device according to claim 9, wherein the correction device (8) has a drive shaft (8.1) protruding from the adhesive reserve (6).   11. The device according to claim 9 or 10, wherein the correction device (8) converts a rotational correction motion (r) into a translational motion (s2) and transmits it to the second adhesive application disc (3).   12. A device according to any one of the preceding claims, wherein the rotation axis (4, 5) of the adhesive-applied disc (2, 3) is inclined by approximately plus or minus 45 ° with respect to the vertical line. .   The length (l) of the adhesive reserve (6) in the direction of the transport path (T) of the middle book substantially corresponds to the diameter of the adhesive application disk (2, 3). The apparatus of any one of 12-12.

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