JPH08295085A - Structure, method and apparatus for bookbinding - Google Patents

Abstract

PURPOSE: To provide a bookbinding structure resistant against warping and having sufficient rigidity in a binding end, by applying a molten hot-melt adhesive in the form of a narrow cord to positions corresponding to the front and back faces of the row of binding holes. CONSTITUTION: A paper sheet processing section is provided for performing a pre-step for obtaining a paper sheet assembly 2 of a stack of paper sheets prepared in another step, a boring step for making a plurality of binding holes 3 in positions along the binding side end of the paper sheet assembly 2, and a step for making perforations along an inner side of the row of biding holes 3 extending along the binding side end of the paper sheet assembly 2. The process is further provided with a preliminary step for obtaining a short band- like thick-paper back cover 6 prepared in another step, a step for making a folding line on the lengthwise center line of the back cover 6, and a step for forming adhesive receiving grooves in side portions 8, 9 of the back cover 6 divided by the folding line 7, along the outer sides of the lengthwise lines that will correspond to the front and back faces of the row of binding holes 3 when the binding structure is completed.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a calendar, a notebook,
The present invention relates to a bookbinding structure such as books, a bookbinding method, and a bookbinding machine.

[0002]

2. Description of the Related Art Conventionally, a plurality of binding holes are provided along one side of a plurality of stacked sheets of paper, and adhesives are poured only into the binding holes to bond the sheets of paper. A bookbinding structure such as a calendar book is known.

[0003]

In the bookbinding structure described in the above-mentioned prior art, since the adhesive poured into the binding holes and solidified is separated and independent for each binding hole, the binding holes are separated from each other. It is not good enough when there is no adhesive in between and bending is likely to occur, and when the binding point needs to be rigid like a calender, it is not preferable, and it is filled in the binding hole during manufacturing. If the amount of adhesive unintentionally increases, the adhesive may leak out and cause stains. Conversely, if the amount decreases, the adhesion may be insufficient. There were defects such as a high incidence of defective products.

A first object of the present invention is to provide a novel bookbinding structure that eliminates the above-mentioned defects, and a second object is to provide a new bookbinding method that enables the implementation of this bookbinding structure. A third object of the present invention is to provide a novel bookbinding machine that can carry out this bookbinding method.

[0005]

In order to achieve the first object, the bookbinding structure according to the present invention has a plurality of binding holes along one side edge of a paper piece polymer in which a plurality of paper pieces are superposed. And a separate foldable back cover is formed separately from the foldable back cover, and a hot melt type back cover is formed on both sides of the foldable back cover at a position corresponding to the row of the binding holes and the front and back when completed. By applying an adhesive in the form of a thin string in a molten state, covering the front and back sides of the binding hole perforating edge portion of the paper piece polymer with this double-foldable back cover and lightly pressing both sides of the cover. The binding hole is filled with the above-mentioned adhesive from both front and back sides and solidified, and a groove for holding an adhesive is provided at a position on the longitudinal line along the outside of the application position of the thin string-like adhesive in the back cover. It is a thing.

In order to achieve the above-mentioned second object, the bookbinding method according to the present invention comprises a step of obtaining a paper piece polymer in which a plurality of paper pieces are superposed, and a plurality of bindings at positions along the upper side of the paper piece polymer. By the paper piece processing work that performs the binding hole punching process to make holes, the process of obtaining a short strip-shaped cardboard back cover, the crease line process of making a fold line on the longitudinal center line of the back cover, and the fold line on the back cover At the time of completion on the divided both sides, the back cover pretreatment work that performs the adhesive application process that applies hot melt type adhesive in a thin string shape in a molten state to the line parts corresponding to the front and back of the row of binding holes And a back cover folding line step of folding the adhesive-attached back cover into a V-shape along the above-mentioned folding line, and inserting the binding hole perforated portion of the above-mentioned paper piece polymer into the V-shaped bent back cover and the same back cover. Both sides of the back cover The process of folding the back cover in two and the post-treatment work of the back cover in which the process of maintaining the back cover in the two-fold line state until the adhesive is solidified are performed, and the folding line is attached. At the time of the process or before and after, at the time of completion, on both sides of the back cover divided by the folding line, a groove for accumulating adhesive is provided at a longitudinal line along the outside of the line corresponding to the front and back of the row of the binding holes. The groove forming process is performed.

In order to achieve the third object, the bookbinding machine according to the present invention comprises a first feed conveyer for feeding a paper piece polymer forward, and a large number of binding holes arranged in front of the first feed conveyer. A press section having a perforating blade, and a second feed conveyor for sending the paper piece polymer after the binding hole is punched to the post-processing section of the back cover,
A paper piece processing unit having a undulation cover for guiding and moving the binding hole perforated portion of the paper piece polymer existing in the press section onto the second conveyor, and the back covers are conveyed one by one to the back processing section of the back cover. Adhesion of hot-melt type adhesive to the back cover transport section, a roll device that folds the back cover at the base end of the back cover transport section, and a back cover that is provided in the middle of the back cover transport section. The pre-treatment part of the back cover equipped with the agent application part, the rotary device having in the radial direction a telescopic arm equipped with a pair of sandwiching plates that opens and closes in a V shape by the cylinder device, and the sandwiching plate opens. In this state, when it comes under the tip portion of the back cover conveying section, it is pressed to bend the adhesive-attached back cover into a V-shape and to fit it between the sandwiching plates. The back processing part of the back cover and the back cover And finished product receiving section for receiving the finished product from the processing unit, is intended constructed from, then roll apparatus is one having a provided part of the adhesive reservoir concave grooves.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bookbinding machine according to the present invention shown in the drawings has a plurality of paper piece polymers 2 superposed on each other in a pre-process of placing and stacking a paper piece polymer 2 in another step. And a paper piece processing section 5 for performing a binding hole opening step of forming individual binding holes 3 and a perforation step of inserting perforations 4 at locations along the inside of the row of binding holes 3 on the upper side of the paper piece polymer 2. ,

The process is divided into a pre-process for obtaining and placing a short strip-shaped cardboard back cover 6 in another process, a folding line forming process for forming a folding line 7 on the longitudinal center line of the back cover 6, and a folding line 7 for the back cover 6. At the time of completion on both sides 8 and 9, in the front and back of the row of the binding holes 3, a groove forming step of forming concave grooves 10 and 11 for accumulating adhesive in longitudinal line points along the outside of corresponding line points, and folding in the back cover 6. At the time of completion, on both sides 8 and 9 divided by the line 7, hot-melt type thermoplastic resin adhesives 12 and 13 are formed into thin strings in a heat-melted state at corresponding line points on the front and back sides of the row of the binding holes 3. A pretreatment section 14 of the back cover for performing an adhesive applying step for applying;

A back cover folding step of receiving the melted adhesive back cover 6 from the pre-treatment portion 14 of the back cover and folding the back cover 6 along the folding line 7 to bring the back cover 6 into a V-shaped bent state. , The V-back spin state back cover 15 receives the paper strip polymer 2 from the paper strip processing unit 5 and inserts the binding hole punching portion 16 therein, and both side portions of the V-shaped back spin cover 15 A step of folding the back cover in two so that the cover 15 is folded into two and is in a weighted state;
A back cover post-treatment unit 20 for performing a hanging hole drilling process for making a hanging hole 19 in the folded back cover attachment part 18, and a maintaining process for maintaining the folded back cover 17 in a folded state until the adhesive is solidified;

It comprises a finished product receiving portion 22 for receiving a finished product 21 from the post-processing portion 20 of the back cover.

The paper piece processing section 5 receives the paper piece polymer 2 by manual operation and sends it to the first feeding conveyor 24.
And a press section 27 having a large number of binding holes 3 perforation blades 25 and perforation 4 cutting edges 26 arranged in front of the first feed conveyor 24, and paper piece weight after perforation and perforation A second feed conveyor 28 that sends the united body 2 to the post-processing section 20 of the spine cover, and an undulation that guides and moves the binding hole punching portion 16 of the paper piece polymer 2 existing in the press section 27 on the second feed conveyor 28. Consisting of bar 29,

The back cover pretreatment section 14 includes a lifter 31 for placing the back covers 6 in a stacked state, a supply vacuum pad device 32 for feeding the back covers 6 one by one from the lifter 31, and a vacuum pad device. The back cover transport section 33 that transports the back cover 6 from the back cover 32 onto the back processing section 20 of the back cover, and the fold line 7 on the back cover 6 received from the vacuum pad device 32 on the proximal end side of the back cover transport section 33 It comprises a roll device 34 for forming the recessed grooves 10 and 11 for holding the adhesive, and an adhesive application device 35 for applying the hot-melt type adhesives 12 and 13 to the back cover 6 being conveyed by the back cover conveying section 33.

Further, the post-processing section 20 of the back cover has a pair of telescopic arms 4 having a pair of pinching plates 39, 40 at the ends which are opened and closed in a V shape by the cylinder devices 37, 38.
A rotary device 43 having 1 and 42 on four sides, and a punching device 44 for making a hanging hole 19 in a back cover mounting portion 18 that is folded in two.
When the clamping plates 39, 40 are opened and stopped below the tip of the back cover transport section 33, the back cover 6 with an adhesive is bent into a V shape and the clamping plate 39 is clamped. It is composed of a cylinder-driven bending and pushing device 45 fitted between the plates 39 and 40.

In the case of bookbinding using the bookbinding machine of the above-described embodiment, first, the paper piece polymer (for example, a semifinished product of a calender with 6 sheets) 2 previously produced in the previous step is placed on the upper side of the first feeding conveyor 24. Insert one set by hand with the direction facing forward, so that the upper side portion of the paper piece polymer 2 enters the press portion 27 and the binding holes 3 and perforations 4 are cut.

After that, the undulating bar 29 falls forward so that the binding hole punched portion 16 of the paper piece polymer 2 is moved to the second feed conveyor 2.
8 and guides the paper piece polymer 2 to the back cover post-processing section 20 by the second feeding conveyor 28.

Before the feeding, the back cover 6 which has been subjected to the folding line 7 attaching process by the roll device 34 and the adhesives 12 and 13 attaching process by the adhesive device is sandwiched by the folding and pushing device 45 in an open state. Board 3
The operation of being pushed in the V-shaped bent state to 9, 40, the rotary device 43 is rotated by 90 degrees in the pushed state, and the sandwiching plates 39, 40 with the back cover 15 are directed to the second feed conveyor 28. The operation is made to face, and the telescopic arms 41, 42 are made in an extended state to make the sandwiching plates 39, 40 with the same back cover 15 approach the second feed conveyor 28 and stand by. Then, the binding hole perforated portion 16 of the paper piece polymer 2 is provided in the V-shaped bent state back cover 15 in the sandwiching plates 39 and 40 in the standby state by the feeding force of the second feeding conveyor 28. The back cover 6 is folded in half by inserting it and closing the sandwiching plates 39, 40 by the cylinder devices 37, 38.

When the back cover 6 is folded in two by the sandwiching plates 39, 40, the thin string adhesives 12, 13 in a semi-molten state applied to the inner surface of the back cover 17 are bound. The adhesives 46 and 47, which enter the hole 3 from the front side and the back side and are filled in the hole 3, and the surplus adhesives 46 and 47 due to the filling are diffused on the inner surface of the double-fold back cover 17 and the double-fold back cover 17 and the paper piece. Improves adhesion (strengthening) with 1. In this case, the diffusing surplus adhesives 46 and 47 appropriately flow into the adhesive accumulating grooves 11 and 12 and do not squeeze them out, so that the appearance is good.

While the back cover 6 is maintained in the two-folded state by the sandwiching plates 39, 40, the punching device 44 is operated to open the hanging hole 19 in the two-folded back cover mounting portion 18 and keep the same state. Telescopic arm 4
1 and 42 are in a contracted state, and after the expansion and contraction arms 41 and 42 are contracted, the rotary device 43 is further rotated by 90 degrees to transfer the paper piece polymer 2 onto the finished product receiving portion 22 and above the cylinder 22. The sandwiching plates 39, 40 are opened by the devices 37, 38 to obtain the finished product 21. The opening timing of the sandwiching plates 39, 40 is determined by the adhesives 12, 13 existing in the binding hole 3.
Also, the excess diffusion adhesives 46, 47 are waited until they solidify to the extent that they do not peel off.

[0020]

As apparent from FIGS. 5 and 6, the present invention is constructed such that the adhesive is continuously present not only in the binding holes but also on the front and back sides between the binding holes. Therefore, the bending as described in the above conventional example is unlikely to occur,
It has sufficient rigidity,

Further, in the present invention, the concave groove for accumulating the adhesive prevents the adhesive from leaking out even if the adhesive is intentionally used in a somewhat large amount.

[0022]

As described above, in the bookbinding structure according to the present invention, the adhesive is continuously present not only in the binding holes but also on both the front and back sides between the binding holes, so that the bending is hard to occur. It has sufficient rigidity at the insert end and is extremely suitable for products such as calendars, and the amount of adhesive is deliberately increased (however, the amount of adhesive should not exceed the groove). It is possible to carry out the present invention, and it is possible to avoid an accident of insufficient adhesion due to a shortage of an adhesive. Furthermore, the bookbinding method and the bookbinding machine according to the present invention facilitate the bookbinding structure according to the present invention. And it can be done efficiently.

[Brief description of drawings]

FIG. 1 is a bookbinding process diagram showing an embodiment of a bookbinding method according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a cross-sectional view taken along the line CC of FIG.

FIG. 5 is a cross-sectional view taken along the line EE of FIG.

FIG. 6 is a sectional view taken along the line DD of FIG.

FIG. 7 is a plan view showing an embodiment of the bookbinding machine according to the present invention.

FIG. 8 is a cross-sectional view taken along the line 7F-F of FIG.

FIG. 9 is a sectional view taken along the line G-G in FIG.

FIG. 10 is a plan view showing an operation process of the bookbinding machine according to the present invention.

FIG. 11 is a cross-sectional view taken along the line HH of FIG.

FIG. 12 is a cross-sectional view taken along the line JJ of FIG.

[Explanation of symbols]

 1 Paper Piece 2 Paper Piece Polymer 3 Binding Hole 4 Perforation 5 Paper Piece Processing Section 6 Back Cover 7 Fold Lines 8, 9 Both Sides 10, 11 Adhesive Recessed Grooves 12, 13 Adhesive 14 Pretreatment Section of Back Cover 15 V-shaped bent state Back cover 16 Binding hole drilling part 17 Two-fold back cover 18 Back cover mounting part 19 Hanging hole 20 Back cover post-processing part 21 Finished product 22 Finished product receiving part 24 First feeding conveyor 25 Hole clearing Blade 26 Cutting blade 27 Press section 28 Second feeding conveyor 29 Lifting bar 31 Lifter 32 Vacuum pad device 33 Back cover transporting part 34 Roll device 35 Adhesive applying device 37, 38 Cylinder device 39, 40 Clamping plate 41, 42 Telescopic arm 43 rotary device 44 punching device 45 folding and pushing device 46, 47 surplus diffusion adhesive

Claims (6)

[Claims] 1. A plurality of binding holes are formed along one side edge of a paper piece polymer in which a plurality of paper pieces are superposed, and a back cover which can be folded in two is formed separately from the binding holes. At the time of completion on both sides of the foldable back cover, a hot-melt type adhesive is applied in the form of a thin string in a molten state to the corresponding locations on the front and back sides of the row of the binding holes, and the foldable back cover is provided as described above. Bookbinding characterized in that the binding agent is filled from both the front and back sides and solidified by covering both sides of the cover with lightly pressing both sides of the cover. Construction. 2. The bookbinding structure according to claim 1, wherein the back cover is provided with an adhesive reservoir groove at a position on a longitudinal line along the outer side of the thin string adhesive application position. 3. A paper piece treating operation of performing a step of obtaining a paper piece polymer in which a plurality of paper pieces are superposed, and a binding hole punching step of forming a plurality of binding holes along a top side of the paper piece polymer. , A process for obtaining a short strip-shaped back cover made of cardboard, a fold line process for making a fold line on the longitudinal center line of the back cover, and the front and back sides of the row of the above-mentioned binding holes at the time of completion on both sides separated by the fold line in the back cover. Pre-treatment work of the back cover that performs the adhesive application process that applies a hot melt type adhesive in a thin string shape in a molten state to the line points corresponding to and the back cover with adhesive is V-shaped with the above fold line A folding back cover folding line step, a step of inserting the binding hole perforated portion of the paper piece polymer into the V-shaped bent state back cover and folding both sides of the back cover to fold the back cover in half. The adhesive solidifies the two-fold spine cover Binding wherein the forming and a post-processing operations of the back cover to perform maintenance step of maintaining the folded line until. 4. At or before and after the folding line forming step,
At the time of completion, on both sides of the back cover divided by the fold lines, a groove forming step is performed to provide a groove for adhesive accumulation at a longitudinal line along the outside of the line corresponding to the front and back of the row of the binding holes. The bookbinding method according to claim 3, which is characterized in that. 5. A first feed conveyer for feeding a paper piece polymer to the front, a press section having a large number of binding hole punching blades arranged in front of the first feed conveyor, and a paper piece after the binding holes have been punched. Paper strip processing section provided with a second feeding conveyor for sending the polymer to the post-processing section of the spine cover, and an undulating cover for guiding and moving the binding hole punching portion of the paper sheet polymer present in the pressing section onto the second conveyor. And a back cover transport unit that transports the back covers one by one to the post-treatment unit of the back cover, a roll device that folds the back cover at the base end of the back cover transport unit, and a middle of the back cover transport unit. Pretreatment part of the back cover equipped with an adhesive application part for applying hot-melt type adhesive to the back cover provided at a part, and a pair of pinching plates that open and close in a V shape by a cylinder device at the tip Rotary device with a telescopic arm in the radial direction Only V back cover with an adhesive and pressed when it came under the tip point of the back cover conveying section in plates open state
A back cover post-processing unit that includes a folding and pushing device that is bent in a letter shape and is fitted between the sandwiching plates; and a finished product receiving unit that receives a finished product from the back cover post-processing unit, A binding machine characterized by being configured from. 6. The bookbinding machine according to claim 5, wherein the roll device has a portion provided with a groove for accumulating the adhesive.