JPH04279395A - Adhering device of glue application/folding machine adhesive application folding book binding - Google Patents

Abstract

PURPOSE:To form an exact adhesive-applied line and hold a section which needs to be separated securely without adhering it by allowing a sheet to be held from above using a pressing plate and pushed up from below forcibly using a lift and causing an adhesive application device which is provided afloat above the sheet to work on the sheet. CONSTITUTION:A lift 66 which ascends and descends using an air cylinder 64 is provided below a lower guide 24 located slightly in the upstream side of a feed head 22. This lift 66 heaves up a sheet 10 which is transported over the lower guide 24 forcibly. The sheet 10 on the lift 66 is pressed downward from above using a holding plate 68 with an elastic force applied so that the sheet 10 does not become floated above the lift 66, and the sheet 10 is forcibly separated from the adhesive discharge orifice 28 or the feed head 22, if the lift 66 descends. The lift 66 ascends in a previously calculated time according to the number of sheets, and heaves up the sheet 10 to allow it to come in contact with the adhesive discharge orifice 28 of the feed head 22, thus forming an adhesive application line 12. Subsequently, a section which comes to the innermost is merely held without being adhered so that it can be pulled out.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gluing device for a gluing and folding machine and a gluing and folding bookbinding method.

0002

[Prior Art] A process of forming glue application lines partially on the surface of a sheet of paper, repeating the process of folding it in a direction perpendicular to the glue application lines, and finally folding it at the glue application line and gluing it. After making a temporary book using this as a spine, the method of binding the book by appropriately cutting the edges other than the spine is known as the adhesive fold binding method.

FIG. 3 is an explanatory diagram of a glue-and-fold bookbinding method called 8P folding, in which one paper sheet 10 is folded into four sheets to make an 8-page book. On the other hand, a glue application line 12 is formed by applying glue along the transport direction from the center in the width direction to the rear center portion of the paper sheet 10. Next, the center of the paper sheet 10 in the length direction is moved in the transport direction (
By folding at a bending line 14 at right angles to the glue application line 12) and finally pressing and folding at the glue application line 12, the glue application line 12 will be glued and the glue application line 1 will be folded.
A temporary copy of 8 pages with 2 on the back will be made. However, in this provisional book process, the paper sheet 10 is continuous at the folding line 14, so if this section is cut along the cutting line 16, it becomes an official 8-page book. Please note that when folded, the edges other than the spine may not be aligned.
Not only the portion along the bending line 14 described above but also all the edge portions may be cut.

FIG. 1 is a side view of a glue folding machine that performs the above operations. In the conventional method, a pneumatic glue supply device 20 that supplies glue is installed on a transfer device 18. The supply head 22 was in contact with the paper sheet 10. Then, the glue is discharged from the supply head 22 only when the part of the paper sheet 10 to which the glue is to be applied is passing.

[0005]

[Problem to be Solved by the Invention] Therefore, whether or not the glue application line is successfully formed on the target area is determined by the timing of discharging the glue from the supply head. Accurate control was difficult because the material was being transferred at high speed. Therefore, the applicant has developed a method in which the glue is always supplied from the glue supply device, and the paper sheet is blown up with air from below only when the paper sheet passes through the area where the glue application line is to be formed. A method of contacting the device has been proposed in Japanese Patent Application Laid-Open No. 1-247370. However, this method has poor reliability because the paper sheet is blown up with air, and the structure tends to be complicated because the holding member that holds the paper sheet moves up and down. This invention is intended to address these issues, and its purpose is to use a simple structure with a small number of members, and to enable glue to be applied accurately only to the necessary locations on a paper sheet. .

[0006]

[Means for Solving the Problems] In order to solve the above problems, the present invention elastically presses a paper sheet being transferred on a transfer device from above with a press plate, and also provides a paper sheet that is fed by a glue supply device. Provides a gluing device in which the head is installed floating above a paper sheet, and when the paper sheet is passing through a point where a glue application line is to be formed, the paper sheet is forcibly lifted from below by a lift and brought into contact with the supply head. This is what I did.

[0007] Furthermore, since this gluing device improves the accuracy of forming the glue application line, the spine of the signature that comes to the center when bound using the glue fold binding method is not formed with the glue application line. The present invention also provides a glue-fold bookbinding method in which the pages are sandwiched in such a way that they can be removed.

[0008]

[Operation] By taking the above-mentioned means, the paper sheet is forcibly lifted by the lift, and when the lift is lowered, the paper sheet is forcibly lowered by the pusher plate, so that the glue application line can be formed accurately. Furthermore, according to a bookbinding method that does not form a glue application line on the spines of the signatures that come to the center when bound, items that need to be separated, such as answer sheets for problem sets, can be sandwiched in without being bound.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view of a pasting and folding machine according to the present invention. (omitted) etc. Transfer device 18
At the terminal end of the paper sheet 10, a supply head 22 of a glue supply device 20 is installed in a state floating above the lower guide 24, and the glue discharged from the glue discharge port 28 is applied to a desired portion of the paper sheet 10 with a glue application line 12. form.

A folding device 34 consisting of folding rolls 30 and blades 32 is provided downstream of the transport device 18, and folds the paper sheet 10 to a predetermined size in a direction perpendicular to the transport direction. That is, the folding roll 30 consists of an upper roll 36, a lower roll 38, and a side roll 40, and the paper sheet 10 that has passed through the glue supply device 20 is sent to the blade 32 by passing between the upper roll 36 and the lower roll 38 (however, , glue application line 12
Since it would be undesirable for the glue to adhere to the upper roll 36, an escape groove 37 is formed at the corresponding location on the upper roll 36). The blade 32 consists of an upper lip 42 followed by an upper guide 44 and a lower lip 46 followed by a lower guide 48.
6 and proceed through the upper and lower guides 44 and 48. A stopper 5 whose position is adjustable is located between the upper and lower guides 44 and 48.
0 is set at a predetermined position, the paper sheet 10 that has advanced through the upper and lower guides 44 and 48 hits this stopper 50 and loses its destination. The paper sheet 10 that has lost its place falls downward toward the bottom roll 38 and the side roll 40, and is finally caught between the two rolls 38 and 40 and folded. The paper sheet 10 that has come out of the folding roll 30 is further guided by a guide 52 to a second or subsequent folding device 34 consisting of a folding roll 30 (the upper roll 36 and the side roll 40 are also used) and blades 32, if necessary. First folding device 34
The folded paper sheet 10 is further folded.

The paper sheet 10 that has exited the last folding device 34 is guided to another folding device 58 that folds the glue application line 12 by a pair of upper and lower transfer rollers 54, a transfer belt 56, and the like. This folding device 58 includes a knife 60 provided above and parallel to the transfer belt 56 and a knife 60 provided below the transfer belt 56.
It consists of a pair of left and right folding rolls 62 provided on both sides of the folding roller 0. That is, the transfer belt 56 is open in the center,
A knife 60 descends into this space, and when the knife 60 descends and presses down the paper sheet 10 (
(The position where the knife 60 comes down coincides with the glue application line 12), the folding roll 62 grips the paper sheet 10 and sends it downward, and folding and gluing are performed using the glue application line 12 as the folding line 14. be exposed.

FIG. 2 is a side view showing the details of the glue supply device 20. A lift 66 that is raised and lowered by an air cylinder 64 or the like is provided below the lower guide 24 on the slightly upper side of the supply head 22. The paper sheet 10 being transported on the lower guide 24 is forcibly lifted up. At this time, the paper sheet 10 on the lift 66 is elastically pressed downward by a push plate 68 such as a leaf spring from above, so that it does not float up on the lift 66 and the lift 66 is lowered. When this occurs, the paper sheet 10 is forcibly separated from the glue outlet 28 of the supply head 22. As described above, when the sensor 70 etc. detects that the paper sheet 10 has been transferred, the lift 66 rises at a time and timing calculated in advance based on the size, type, number of folds, etc. of the paper sheet 10, and the paper sheet 10 is lifted up and brought into contact with the glue outlet 28 of the supply head 22 to form the glue application line 12.

FIG. 4 is an explanatory diagram showing the binding process of a 12P folded book. In this case, the glue application line 12 is formed in the middle latter two-thirds of the paper sheet 10, and the folding line 14 is formed in the first and second half of the paper sheet 10. Using the second folding device 34, the paper is folded into two places, one third each, perpendicular to the glue application line 12. In addition, although not shown, if the book is folded three times, the book will be 16 pages, and if it is folded four times, the book will be 20 pages [(number of folds + 1) x 4 pages].

FIG. 5 is an explanatory diagram showing the binding process of another 12P fold book, but in this example, the glue application line 12 is only in the middle ⅓. When a book is bound using this method, the innermost signatures are not glued together, but simply remain sandwiched, allowing them to be removed. Therefore, it is suitable for binding books such as question books and answer sheets that need to be separated. Note that the number of signatures that can be extracted is not limited to the two in the center, but it is also possible to extract more signatures.

[0015]

[Effects of the Invention] As described above, according to the present invention, glue is always supplied from the supply head of the glue supply device.
Since the paper sheet is forcibly lifted by a lift and brought into contact with the area where the glue application line is to be formed, the glue application line can be formed accurately and there are no cases where pages are missing or where unnecessary parts are glued. It disappears. What makes this possible is a simple structure such as a lift or push plate, so it can be manufactured at low cost. Furthermore, according to this method, items that need to be separated, such as answer sheets for problem books, can be firmly sandwiched in the center without being glued, so they do not dissipate when carried or handled, and there is no need to worry about separating them. It can be omitted.

[Brief explanation of the drawing]

FIG. 1 is a side view of a glue-folding machine.

FIG. 2 is a side view of the main parts of the glue-folding machine.

FIG. 3 is an explanatory diagram showing a bookbinding process.

FIG. 4 is an explanatory diagram showing a bookbinding process.

FIG. 5 is an explanatory diagram showing the bookbinding process.

[Explanation of symbols]

10 Paper sheet 12 Glue application line 18 Transfer device 20 Glue supply device 22 Supply head 66 Lift 68 Push plate

Claims (2)

[Claims] Claim 1: Gluing by a gluing and folding machine that forms a glue application line (12) along the transfer direction on the spine of the paper sheet (10) transferred by the transfer device (18) when it is bound. In the device, the paper sheet (10) is pressed from above by a pressing plate (68).
) to press elastically, and at the same time press the glue supply device (20
) is placed floating above the paper sheet (10), and when the paper sheet (10) is passing through the portion forming the glue application line (12), the paper sheet ( 10) is forcibly lifted from below by a lift (66) and brought into contact with the supply head (22). 2. A glue application line (12) is formed along the transport direction on the spine of the paper sheet (10) transported by the transport device (18) when it is bound, and the paper sheet (10) is folded perpendicularly to the transport direction. A glue folding bookbinding method in which the process is repeated, and finally, the book is folded and glued at the glue application line (12) to make a temporary book, and then the edges of the temporary book other than the spine are appropriately cut and bound. In this method, the spines of the signatures that come to the center when bound are not formed with the glue application line (12) and the signatures are sandwiched so that they can be extracted.