JP2555767Y2 - Back attachment device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a back-pasting device for applying a back to a document or the like for binding.
The present invention relates to a back sticking device using an adhesive tape.

[0002]

2. Description of the Related Art Hitherto, various types of back bonding apparatuses for binding documents using an adhesive tape for back bonding have been known. First, after binding the documents and the like with a stapler, stick an adhesive tape to the edge of one of the covers, and then transfer the binding portion of the documents along the guide plate,
The adhesive tape is pressed against the spine and back cover of the document by the guide plate. The guide plate is formed by forming a piece of a plate bent at a substantially right angle into a triangular shape, abutting the document with the adhesive tape on the guide plate, and rubbing it.
The slope portion of the guide plate bends the adhesive tape and presses it on the document.

[0003] In this type of spinning device, the spine of the booklet is pressed against the guide plate and moved in the longitudinal direction to stitch the spine. Therefore, the width of the device needs to be designed in consideration of the amount of movement of the booklet. Yes, it is difficult to miniaturize. In addition, since the adhesive tape for back application is bent while being applied in the longitudinal direction, the adhesive tape may be wrinkled or twisted, and there is a problem in the finished state. And, since the adhesive tape is pressed against the spine of the booklet by the guide plate, when the number of booklets is small and thin, the spine of the booklet is deformed by the pressing force at the time of pressing, so that the thickness of the booklet must be a certain degree or more. There is a problem that the back cannot be applied. Therefore, the space efficiency is improved by miniaturization, the finish quality is improved, and
There has been a demand for a back pasting apparatus capable of pasting a thin booklet, and the present applicant has already proposed a back pasting apparatus that has solved the above-mentioned problem (Japanese Utility Model Application No. 4-47353).

[0004] The structure and operation of this backing device are as follows. One backing paper is peeled from the leading end of the adhesive tape obtained by dividing the backing paper in the longitudinal direction, the peeled backing paper is inserted between the feed rollers, and the leading end of the adhesive tape with the other backing paper adhered thereto. Into the fixed guide rail located in front of the guide rail. When the feed roller is driven, the backing paper is fed, and at the same time, the adhesive tape is also fed and fed into the guide groove of the guide rail. The adhesive tape having been fed for a predetermined length is cut by a cutter device. The adhesive tape fed to the guide rail has the backing paper sticking side supported by the guide groove, and the backing paper peeling side protruding from the guide groove. When the adhesive tape of a predetermined length is set in the guide rail, the clamp presses the exposed surface of the adhesive layer on the cover of the booklet on the paper table, and the guide rail descends and attaches the adhesive tape to the back of the booklet. Then, the guide rail is advanced, and the adhesive tape is squeezed. The adhesive tape is pressure-bonded to the back cover of the booklet fixed by the clamp while peeling off the remaining backing paper. In this way, a series of operations from the feeding of the adhesive tape to the completion of the application are performed.

[0005] However, even in this back bonding apparatus, when the back bonding is performed on a very small number of booklets, the booklets are easily bent. Therefore, when the guide rail is rapidly advanced, as shown in FIG. Clamp 1 (left in the figure)
The edge of the booklet 2 to be fixed to the guide rail 3 is pushed and moved by the guide rail 3, and the adhesive tape 5 is not pulled out from the guide groove 4 of the guide rail 3, so that the back bonding may not be performed.

[0006]

[Problem to be Solved by the Invention]
The back pasting device described in Japanese Patent No. 47353 allows the back pasting of a thin booklet as compared with the conventional back pasting device. For example, in the case of about 3 or 4 very thin booklets, the booklet is bent and the back pasting is performed. May not be possible. To securely attach the back to a thin booklet, drive the guide rail at low speed with a low driving force that does not cause the booklet to bend, or if it is advanced intermittently, there is no failure, but there is a risk of bending. Even with a thick booklet that does not have this, there is a problem that the spinning speed is reduced and the work efficiency is deteriorated. In order to improve the stability and reliability of the performance of the back-sticking device, the back-sticking device can be reliably applied to booklets of any thickness and the processing speed can be prevented from lowering as much as possible. There are technical problems that need to be solved, and the present invention aims to solve the above problems.

[0007]

SUMMARY OF THE INVENTION This invention is proposed to achieve the above object, and includes a frame (13,
14) a slide table (16) is mounted to be movable back and forth, and a guide rail (18) provided with a guide groove (34) for an adhesive tape (17) for attaching the back is arranged behind the slide table (16). The guide groove (34) is opposed to the slide table (16), and at least one of the guide rail (18) and the slide table (16) is movable up and down. The slide table (16) is located above the slide table (16). 16), a clamp (19) capable of being pressed against the guide rail is provided, and one of the guide rail (18) or the slide table (16) held at a lower position than the guide rail (18) is moved up and down to move the guide rail (18). ) And the upper surface of the slide rail (16) are flush with each other, and the guide rail (18) is driven forward to move the slide table. (16) a drive mechanism for retracting provided to divide the backing of the adhesive tape (17) in the longitudinal direction,
The backing paper sticking portion side of the adhesive tape (17) from which one of the backing papers (33) has been peeled is inserted into the guide groove (34), and the adhesive layer exposed surface of the adhesive tape (17) is clamped by the clamp (19). The guide rail (18) is relatively lowered by pressing the guide rail (18) on the cover edge of the booklet (22) on the slide table (16) so that the guide rail (18) and the upper surface of the slide table (16) are aligned. Then, the guide rail (18) is driven forward, and the adhesive tape (17) is attached to the back and back cover of the booklet (22) while peeling off the backing paper (32). In 11), a transmission mechanism is provided in the drive mechanism of the guide rail (18),
It is an object of the present invention to provide a back sticking device characterized in that the forward speed of the guide rail (18) can be changed.

[0008]

[Function] When a booklet such as a document to be bound is placed on a slide table and an operation start command is input to the control device, the feed roller is driven, and the adhesive tape from which a part of the backing paper is peeled is guided by the guide rail. It is fed into the groove. When the required length of the adhesive tape is sent out, the adhesive tape is cut by the cutter device according to the size of the booklet. Subsequently, the clamp is lowered, the exposed portion of the adhesive layer of the adhesive tape is pressed against the cover of the booklet, and the guide rail is lowered to attach the adhesive tape to the spine of the booklet. After the lowering of the guide rail is completed, the guide rail is advanced. The guide rail driven forward pushes the slide table back at the front end to retract. The driving force of the guide rail can be set automatically or manually according to the thickness t of the booklet. In the case of a thin booklet, the driving force is reduced and the guide rail is driven at a speed corresponding to the thickness t of the booklet. By doing so, it is possible to prevent the booklet pinched by the clamp from being bent. The adhesive tape whose one edge is pressed by the clamp is pulled out from the guide groove as the guide rail advances. The adhesive tape is pulled out while being squeezed by the guide rail, the backing paper is peeled off, and the adhesive tape is pressed against the back cover of the booklet by the upper surface of the guide rail.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a back sticking device 11, and reference numeral 12 is a base. Left and right frames 13, 1 fixed to the base 12
4 includes a front side (a front side in FIG. 1) as shown in FIGS.
A fixed table 15, a slide table 16, and a guide rail 18 of an adhesive tape 17 are attached. The slide table 16 is mounted so as to be able to slide forward and backward within a certain range, and is urged rearward (left in FIG. 2) by a spring (not shown). Clamps 19 and 20 are disposed above the fixed table 15 and the slide table 16, respectively.
Are provided with guide grooves (not shown) formed in the left and right frames 13 and 14 shown in FIG.
1 and the clamps 19 and 20 are moved up and down along the guide grooves by the movement of the cam plates 21 and 21 driven by a motor (not shown), and are moved down from the position shown in the back sticking step described later. Then, the booklet 22 is pressed between the fixed table 15 and the slide table 16. The clamps 19 and 20 have a thickness t of the
A detector (not shown) such as a stroke sensor is connected as a means for detecting the pressure. Also, as shown in FIG.
A guide plate 23 for positioning the booklet 22 is slidably mounted on the left and right frames 13 and 14.

A fixed guide rail 24, guide rollers 25 and a tape holder 26 are provided outside the right frame 14. A capstan roller 27, an idler roller 28, and a capstan motor (not shown) are disposed below the tape holder 26, and a main body cover 29 is provided with a back paper discharge port 30. As shown in FIG. 6, the long-sided backing adhesive tape 17 loaded in the tape holder 26 is obtained by dividing the backing paper adhered to the adhesive layer 31 into two in the longitudinal direction. The ratio of the width of the backing paper 33 is about 1: 2. Then, when the narrow backing paper 32 is loaded in the tape holder 26, the guide rail 1
8 is located on the side of the slide table 16.
It is formed so as to face the side.

The leading end of the adhesive tape 17 is pulled out from the tape holder 26, and only the wide backing paper 33 is peeled off from the adhesive layer 31. The direction of the wide backing paper 33 is changed by the guide roller 25 as shown in FIG. Then, it is inserted between the capstan roller 27 and the idler roller 28. Adhesive tape 17
Of the capstan roller 27 is inserted into the guide groove 34 of the guide rail 18 through the fixed guide rail 24.
Is driven, the adhesive tape 17 is pulled out of the tape holder 26 integrally with the backing papers 32 and 33. Then, the adhesive tape 17 and the thick backing paper 33 are separated at the position of the guide roller 25, and the adhesive tape 1 on which the narrow backing paper 32 is stuck.
7 is fed into the guide groove 34 of the guide rail 18. The thick backing paper 33 is discharged from the backing paper outlet 30 to the outside.

A tape detection sensor 35 such as a photo sensor is provided on the guide plate 23, and the capstan roller 27 stops when the tip of the fed adhesive tape 17 reaches the tape detection sensor 35. I have. Also,
A cutter device 36 is disposed on the fixed guide rail 24 side,
In FIG. 1, the adhesive tape 17 is cut at a position on the inner surface of the frame 14 by a cutter device 36 that rotates clockwise. This cutter device 36 is provided with the tape detection sensor 3
5 is controlled by the control device 37 in accordance with the output signal. A series of operations from the feeding of the adhesive tape 17 to the completion of the back application are sequentially controlled by the control device 37 described above.

The memory of the control device 37 stores a plurality of drive pattern data reference tables for controlling the advance speed of the guide rail 18 in the back sticking step described later, and drives the drive according to the thickness t of the booklet 22. The pattern data is selected, and the guide rail 18 is driven forward. Guide rail 18 arranged behind slide table 16
Consists of an upper member 38 and a lower member 39 abutting on the lower surface of the upper member 38 as shown in FIG.
The upper surface guide wall is formed in a three-step shape, and the width of the guide groove 34 formed by the upper member 38 is wide from the opening side to the middle part, and the depth is narrow from the middle part.

The guide rail 18 is moved up and down and forward and backward along the guide groove by a predetermined range by the movement of the cam plates 21 and 21 shown in FIG. 1, and as shown in FIG. Rotate 39 to guide groove 34
Opening width can be reduced. The drive cam mechanism of the guide rail can use any means such as a solenoid actuator other than the motor and the link.

Next, the operation of the back sticking device 11 will be described with reference to the flowchart of FIG. First, a booklet 22 such as a document to be bound is tentatively bound with a stapler, and the tentatively bound portion is placed on the slide table 16 so as to align with the trailing edge of the slide table 16, and as shown in FIG. It is brought into contact with the left end of the booklet 22. When an operation start command is input to the control device 37 by a start switch (not shown) or the like (step 101), the capstan roller 27 is driven, and the adhesive tape 17 from which the thick backing paper 33 has been peeled off.
Is fed into the guide groove 34 of the guide rail 18 (step 102). At this time, as shown in FIG. 2, the adhesive layer exposed portion 40 of the adhesive tape 17 is connected to the wide portion 34a of the guide groove 34.
, And the portion to which the backing paper 32 is attached is a narrow inner portion 34b
Therefore, the adhesive layer exposed portion 40 does not adhere to the lower member 39.

When the tip of the adhesive tape 17 reaches the position of the tape detection sensor 35 (step 103), the control device 37 stops driving the capstan roller 27,
By operating the cutter device 36, the adhesive tape 17 is cut to the size of the booklet 22 (step 104). Subsequently, the clamps 19 and 20 are lowered from the state shown in FIG. 2, and the adhesive layer exposed portion 40 of the adhesive tape 17 is pressed against the cover of the booklet 22 as shown in FIG.
The thickness t of the booklet 22 is read into the control device 37 (step 105). Then, as shown in FIG. 8, the thickness t detected from the data of n forward drive patterns, for example, a, b,..., F, each having a different duty ratio of the drive current set according to the thickness t. Is selected and read (step 106). The forward drive patterns a, b,..., F are set such that the ratio of the _ON time T _ON of the drive pulse current decreases as the thickness t of the booklet 22 decreases, and the drive force of the guide rail 18 decreases. Have been.

Next, a lowering drive signal is output, and as shown in FIG. 3, the guide rail 18 is lowered by the cam mechanism, and the adhesive tape 17 is attached to the spine of the booklet 22 (step 107). As shown in the figure, the guide rail 18 is lowered until the upper surface of the guide rail 18 and the upper surface of the slide table 16 are located on substantially the same plane. The lowering speed of the guide rail 18 varies depending on the driving voltage, friction of the cam mechanism, and the like. The completion of the lowering of the rail 18 is detected.

When the completion of the lowering of the guide rail 18 is detected, the lowering drive signal is stopped (step 10).
8) The drive pattern data read out in step 106 is output (step 109), and the lower member 39 of the guide rail 18 is rotated by the cam mechanism as shown in FIG. 4 to reduce the opening width of the guide groove 34. And guide rail 1
8 is advanced. As shown in FIG. 5, the guide rail 18 driven forward has a slide table 16 at its front end.
Press to retract. At this time, since the guide rail 18 is advanced by a driving force corresponding to the thickness t of the booklet 22, the booklet 22 does not bend, and one side of the booklet 22 clamped by the clamp 19 does not retreat. And the adhesive tape 17 from the guide groove 34 with the movement of the guide rail 18.
Is withdrawn. Then, the adhesive tape 17 is pulled out while being squeezed by the corners of the upper member 38 of the guide rail 18, the thin backing paper 32 is peeled off, and the adhesive tape is attached to the back cover of the booklet 22 by the upper surface of the guide rail 18. 17 is crimped.

Then, after the back pasting is completed, the guide rail 18
And the clamp 19 are returned to the initial position (step 11).
0), a series of steps is ended (step 111). still,
In the above embodiment, a plurality of drive pattern data is stored in the memory of the control device in advance, but the duty ratio of the _ON time T _ON and the OFF time T _OFF of the drive pulse is obtained by calculation according to the thickness t of the booklet 22. You may do so. When the frequency of the drive pulse is set low, the guide rail 18 can be moved intermittently. Further, it is possible to provide a switch for selecting a plurality of drive pattern data so that the user can arbitrarily set the forward drive speed in accordance with the thickness t of the booklet 22, and the like. It goes without saying that it extends to modified ones.

[0020]

According to the invention, as described in detail in the above embodiment, the control device reads the thickness t of a booklet such as a document to be bound, and the guide rail advance driving pattern corresponding to the thickness t of the booklet. , The guide rail is driven forward by a driving force corresponding to the thickness t of the booklet, and in the case of a thin booklet, the guide rail is driven at a low speed by a low driving force. Therefore, the thin booklet pinched by the clamp does not bend back due to sudden friction and the adhesive tape is securely pressed to the back cover of the booklet. In addition, a thick booklet that is not likely to be bent is driven at a high speed with a high driving force, and the backing is reliably performed regardless of the thickness of the booklet while preventing a reduction in processing speed as much as possible. In addition, the stability and reliability of the performance of the backing device are improved.

[Brief description of the drawings]

FIG. 1 is a front view of the back sticking device of the present invention.

FIG. 2 is a sectional view of a main part for explaining the operation of the back sticking device.

FIG. 3 is an essential part cross-sectional view for explaining the operation of the back sticking device.

FIG. 4 is a sectional view of an essential part for explaining the operation of the back adhering device.

FIG. 5 is a sectional view of an essential part for explaining the operation of the back sticking device.

FIG. 6 is a perspective view of a tape for sticking back.

FIG. 7 is a flowchart of the operation of the back sticking device of the present invention.

FIG. 8 is a graph showing a pattern of a forward drive pulse current of the guide rail.

FIG. 9 is an explanatory diagram showing a state in which an adhesive tape cannot be stuck due to bending of a booklet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Back bonding apparatus 12 Base 13,14 Frame 15 Fixed table 16 Slide table 17 Adhesive tape 18 Guide rail 19,20 Clamp 21 Cam plate 22 Booklet 25 Guide roller 26 Tape holder 27 Capstan roller 28 Idler roller 29 Body cover 30 Back paper Discharge ports 32, 33 Back paper 34 Guide groove 35 Tape detection sensor 36 Cutter device 37 Control device 40 Adhesive layer exposed portion

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuo Higuchi, 6-6 Nihonbashi Hakozakicho, Chuo-ku, Tokyo Max Corporation (72) Creator Shinji Imai 6-6 Nihonbashi Hakozakicho, Chuo-ku, Tokyo Books Co., Ltd.

Claims (1)

(57) [Scope of request for utility model registration] 1. A slide table (16) is mounted on a frame (13, 14) so as to be movable back and forth, and a guide rail (18) provided with a guide groove (34) for an adhesive tape (17) for affixing the back to the slide (18). The guide groove (34) is arranged behind the table (16), and the guide groove (34) is connected to the slide table (1).
6) At least one of the guide rail (18) and the slide table (16) is movable up and down, and a clamp (19) is provided above the slide table (16) so as to be able to press against the slide table (16). ,
The guide rail (18) or the slide table (1) held at a lower position than the guide rail (18).
6) is raised and lowered so that the upper surfaces of the guide rail (18) and the slide rail (16) are flush with each other, and the guide rail (18) is driven forward to retreat the slide table (16). A drive mechanism is provided to divide the backing paper of the adhesive tape (17) in the longitudinal direction, and insert the backing paper sticking side of the adhesive tape (17) from which one of the backing papers (33) has been peeled into the guide groove (34). And the adhesive tape (1
7) The exposed surface of the adhesive layer is pressed against the cover sheet edge of the booklet (22) on the slide table (16) by the clamp (19), and the guide rail (18) is lowered relatively to the guide rail (18). 18) and the slide table (1)
6) After aligning the upper surfaces of the guide rails (18)
The backing device (11) configured to drive the adhesive tape (17) to the spine and back cover of the booklet (22) while peeling off the backing paper (32). A back sticking device characterized in that a speed change means is provided in a drive mechanism of the rail (18) so that the forward speed of the guide rail (18) can be changed.