JP2017047556A - Bookbinding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide, at low cost, a bookbinding device capable of uniformly coating glue over a spine of a main body of a book to perform perfect binding of the book in a well-finished state.SOLUTION: A book binding device comprises: a gluing unit 2; a cover fitting unit 3; and a clamping unit 4 for clamping a main body B of a book and conveying it to a width direction of a spine of the main body. The gluing unit comprises; a glue tank 5; a glue coating roller 6; and a scraping roller 7. The main body clamped with the clamping unit is conveyed to pass the gluing unit from the cover fitting unit side, then, turned back to pass the scrape roller of the gluing unit, then, turned back to pass the scrape roller again, and then, conveyed to the cover fitting unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bookbinding apparatus, and more particularly to a bookbinding apparatus for performing perfect binding such as case binding and ceiling binding.

  In the prior art, in order to shorten the distance of the main body during the perfect binding process and to make the bookbinding apparatus compact, the main body is held upright by the clamp unit and conveyed in the width direction of the back of the main body. A type of bookbinding apparatus is known (see, for example, Patent Document 1).

  This conventional bookbinding apparatus has a gluing unit for applying glue to the back of the main body disposed under one end of the conveyance path, and a cover on the back of the main body disposed under the other end of the conveyance path. A cover attaching unit to be attached and a clamp unit that sandwiches the body and conveys the body along the conveying path in the width direction of the spine are provided.

  The gluing unit includes a glue tank and a glue application roller and a scrape roller which are disposed in the glue tank and extend in parallel across the conveyance direction and spaced from each other in the conveyance direction of the body. The scrape roller is disposed closer to the cover attaching unit than the glue application roller.

  In this way, the body is clamped by the clamp unit with its back facing down, conveyed in the width direction of the spine, passed over the gluing unit from the cover attaching unit side, and then folded back over the gluing unit. Pass towards.

  In this case, while the main body first passes over the glue application roller, the conveyance speed of the main body (the movement speed of the clamp unit) is constant, while the glue application roller has the middle part of the main body in the conveyance direction at the apex of the glue application roller. Until it reaches the top of the glue applicator roller at a peripheral speed that is faster than the main body transport speed. It can be rotated in the direction of conveyance of the body.

  Furthermore, while the main body passes over the glue application roller for the second time, the conveyance speed of the main body is the same as at the time of the first pass, while the glue application roller continues until the tip of the main body moves in the direction of the glue application roller. Is rotated in the body conveyance direction at a peripheral speed faster than the body conveyance speed, and when the tip of the body movement direction reaches the apex of the glue application roller, the body conveyance direction is slower than the body conveyance speed. Can be rotated.

Thus, while the body sandwiched between the clamp units passes through the glue application roller, the peripheral speed of the glue application roller is changed relative to the conveyance speed of the body, so that an appropriate amount of glue is almost uniform on the back of the body. To be applied.
Then, the body with the glue applied on the back is conveyed to the cover attaching unit by the clamp unit, and the cover is attached to the back of the body by the cover attaching unit.

  However, the peripheral speed of the glue application roller is controlled in accordance with the timing when the clamp unit passes over the glue application roller in this way, and this control is finely adjusted according to the difference in the paper quality and thickness of the body, the temperature of the glue, etc. In order to do so, a complicated apparatus configuration is required, and thus there is a problem that the manufacturing cost of the bookbinding apparatus is high.

  In addition, it is not easy to perform this control with high accuracy, and the accuracy is often insufficient. At the rear edge of the back of the body in the conveyance direction, a part of the excess glue is not scraped off by the scrape roller and is moved upward. It is pushed up and hangs down after passing through the scrape roller, and this hanged part may increase the glue thickness more than the remaining part, and sometimes stringing may occur.

  As a result, excess glue on the back of the body protrudes, etc., so that the cover cannot be attached to the body in a good appearance, or if the book is bound with a top cover that does not have a cover, the glue surface on the back does not finish cleanly. There was a problem.

JP 2010-179594 A

  Accordingly, an object of the present invention is to provide an inexpensive bookbinding apparatus that can uniformly apply glue to the back of the body and can perform perfect binding with perfect binding.

  In order to solve the above-described problems, according to the present invention, a gluing unit and a cover attaching unit that are arranged at intervals along the conveyance path below the conveyance path of the body, and the body in an upright state A clamping unit that sandwiches and conveys along the conveying path in the width direction of the spine, and the gluing unit is disposed in the glue tank and in the glue tank, and is spaced from each other in the conveying direction of the main body. It has a glue application roller and a scrape roller that are open and extend in parallel across the conveying direction. The glue is applied to the spine by the glue application roller, and the excess glue is scraped off by the scrape roller. In the bookbinding apparatus which is transported to the attaching unit and has a cover attached to the back by the cover attaching unit, the scrape roller is spaced apart from the glue applying roller by a distance larger than the thickness of the body, and the glue applying roller The main body, which is disposed closer to the cover unit than the clamp unit and is clamped by the clamp unit, is passed through the glue unit from the cover unit side, and then folded and passed through the glue unit. After that, the bookbinding apparatus is provided which is folded and passed through the scraping roller of the gluing unit, and then folded and passed through the scraping roller and conveyed to the cover attaching unit. The

According to the present invention, the body sandwiched between the clamp units passes twice on the glue application roller of the gluing unit and is applied with glue on the back, and then passes three times on the scrape roller of the gluing unit. Thereby, almost all of the excess glue applied to the body is scraped off by the scrape roller, the thickness of the glue on the back of the body becomes uniform, and stringing hardly occurs.
As a result, in case of case binding, the cover on the main body is clean and a good bookbinding product is obtained, and when binding on the ceiling without a cover, the back glue surface is uneven. Does not occur and the finish is very beautiful.

  Moreover, according to the present invention, there is no need to change the rotational speeds of the glue application roller and the scrape roller while the main body passes through the gluing unit. Therefore, the rotational speed (circumferential speed) of the conventional glue application roller is not required. A complicated apparatus configuration for controlling the image forming apparatus is unnecessary, thereby reducing the manufacturing cost of the bookbinding apparatus.

It is a side view which shows schematic structure of the bookbinding apparatus by one Example of this invention. It is a side view explaining the gluing operation | movement of the bookbinding apparatus of FIG. It is a side view explaining the gluing operation | movement of the bookbinding apparatus of FIG. 1A is a view similar to FIG. 1 showing the state of the bookbinding apparatus of FIG. 1 when attaching a cover, and FIG. 1B is similar to FIG. 1 showing the state of the bookbinding apparatus of FIG. FIG.

Hereinafter, the configuration of the present invention will be described based on preferred embodiments with reference to the accompanying drawings.
FIG. 1 is a side view showing a schematic configuration of a bookbinding apparatus according to one embodiment of the present invention. In addition, the right side and the left side of FIG. 1 are the front side and the rear side of the bookbinding apparatus, respectively, and FIG. 1 shows a state when the body is put into the bookbinding apparatus.
2 and 3 are side views for explaining the gluing operation of the bookbinding apparatus of FIG. 1, and FIG. 4 is similar to FIG. 1 showing the state of the bookbinding apparatus of FIG. FIG.

  1 and 4, the bookbinding apparatus of the present invention includes a frame 1 having a conveyance path F for the body B, and a body attached to the frame 1 and arranged below one end side of the conveyance path F. Gluing unit 2 for applying glue G to the back of B, and unit 3 with cover for attaching cover K to the back of body B, which is attached to frame 1 and arranged below the other end of conveyance path F And a clamp unit 4 that holds the main body B in an upright state and conveys the main body B along the conveyance path F in the width direction of the spine.

The gluing unit 2 is attached to the frame 1 and has a glue tank 5 that accommodates glue G such as hot melt. Although not shown, the glue tank 5 has a built-in heater.
The gluing unit 2 is also attached to the frame 1 and disposed in the area of the glue tank 5. The gluing unit 6 and the scrape roller 7 are arranged in the region of the gluing tank 5, spaced apart from each other in the conveying direction of the body B and extending in parallel across the conveying direction. And a roller drive mechanism (not shown) that is attached to the frame 1 and rotates the glue application roller 6 and the scrape roller 7.

The scrape roller 7 is arranged on the side closer to the cover attaching unit 3 than the glue applying roller 6 with a gap larger than the thickness of the body B from the glue applying roller 6.
Thus, with the lower part of the glue application roller 6 immersed in the glue G of the glue tank 5, the glue application roller 6 and the scrape roller 7 are rotated, and the body B sandwiched between the clamp units 4 moves over the glue unit 2. pass.

In this case, whenever the body B passes over the gluing unit 2, the glue application roller 6 is always rotated at a constant peripheral speed in the movement direction of the body B, while the scrape roller 7 is opposite to the movement direction of the body B. It can be rotated in the direction at a constant peripheral speed.
During this passage, the glue G is applied to the back of the main body B by engaging the top surface area of the adhesive applying roller 6 to which the adhesive G has been adhered to the back of the main body B. Glue G is scraped off.

The cover attaching unit 3 has a table 8 on which an upper cover K is set, and a pair of nip plates 9 a and 9 b that can sandwich the lower end side surface of the body B disposed on the upper surface of the table 8.
The table 8 is attached to the frame 1 so as to be swingable around a horizontal shaft 10 that crosses the conveyance path F, and the upper surface of the table 8 extends horizontally in the conveyance path F, and the upper surface faces downward from the conveyance path F. An inclined retreat position can be taken. The table 8 is moved by a table driving mechanism (not shown) attached to the frame 1.

  In this embodiment, the table 8 swings between the operating position and the retracted position, but instead of this configuration, the table 8 has an operating position whose upper surface extends horizontally in the transport path F, and You may raise / lower between the retreat position where the upper surface spaced apart from the conveyance path F downward.

  The pair of nip plates 9a and 9b extend in parallel across the body conveyance direction, and are attached to the upper surface of the table 8 so as to be movable toward and away from each other in the body conveyance direction. The pair of nip plates are moved by a nip plate driving mechanism (not shown) attached to the table.

  On each side of the conveyance path F in the frame 1, one slit 11 is provided along the conveyance path F. The slit 11 includes a horizontal main body portion 11a extending between the gluing unit 2 and the cover attaching unit 3, and an extended portion 11b extending curved from the end of the main body portion 11a on the cover attaching unit 3 side.

  The clamp unit 4 extends in parallel across the conveying direction, and is disposed so as to be able to move toward and away from each other, and a clamp plate drive mechanism that moves the clamp plates 4a and 4b. (Not shown).

  A pair of rollers 12a and 12b are attached to both side walls along the conveying direction of the clamp unit 4 at intervals in the conveying direction, and these rollers 12a and 12b roll into the corresponding slits 11 respectively. It has been fitted.

  Thus, the clamp unit 4 holds the main body B in an upright state between the pair of clamp plates 4a and 4b, and is guided by the slit 11 so that the main body B extends in the width direction of the spine along the conveyance path F. Can move.

The bookbinding apparatus further includes a clamp unit driving mechanism that is attached to the frame 1 and moves the clamp unit 4 along the slit 11.
In this embodiment, the clamp unit driving mechanism includes first and second pulleys 13a and 13b that are rotatably attached to the frame 1 around a horizontal axis that crosses the conveyance path F in the vicinity of both ends of the slit 11. A motor 14 that is attached to the frame 1 behind the gluing unit 2 and whose drive shaft extends parallel to the rotation shafts of the first and second pulleys 13a and 13b, and a fourth pulley that is attached to the drive shaft of the motor 14 13d and the third and fifth pulleys 13c and 13e attached to the frame 1 so as to be rotatable around an axis parallel to the rotation axis of the first and second pulleys 13a and 13b at the rear of the gluing unit 2. And an endless belt 15 spanned between the first to fifth pulleys 13a to 13e.

  Then, the clamp unit 4 is fixed to the endless belt 15 of the clamp unit drive mechanism, and the endless belt 15 is rotated clockwise and counterclockwise by the motor 14, so that the clamp unit 4 is guided to the slit 11 and is conveyed. It can reciprocate along F.

Further, a bookbinding discharge unit 16 is provided in front of the cover attaching unit 3 and on the front side of the bookbinding apparatus.
The bookbinding discharge unit 16 has a sliding plate 17 attached to the frame 1 and inclined forward and downward from the conveyance path F in front of the cover attaching unit 3, and the lower end edge of the sliding plate 17 is on the front surface of the bookbinding apparatus. It is connected to the formed outlet 19. The bookbinding product discharger 16 further includes a receiving plate 18 that projects from the front lower portion of the bookbinding apparatus and extends perpendicularly to the sliding plate 17.

Next, the operation of the bookbinding apparatus of the present invention will be described.
First, as shown in FIG. 1, the table 8 of the cover attaching unit 3 takes an operating position, the pair of nip plates 9a and 9b are opened by an amount corresponding to the thickness of the body B, and the clamp unit 4 is attached to the cover attaching unit. The pair of clamp plates 4a and 4b are opened by an amount corresponding to the thickness of the body.
The body B is inserted between the pair of clamp plates 4a and 4b with the back facing downward, and the back is supported by the table 8 while being held upright by the clamp unit 4 (the pair of clamp plates 4a and 4b). Is done.

Thereafter, the table 8 takes the retracted position, and the clamp unit 4 holding the body B is conveyed toward the gluing unit 2 in the width direction of the back.
The body B sandwiched between the clamp units 4 is allowed to pass over the gluing unit 2 from the cover attaching unit 3 side, and then stopped (see FIGS. 2A and 2B). In the meantime, glue G is applied to the back of the body B by the glue application roller 6.
Further, while the body B is stopped, the cover K is set on the table 8 in the retracted position.

  Next, the body B is folded back from the stop position and passed over the gluing unit 6, and then stopped (FIGS. 2C, 2D, 3A, and 3B). )reference). During this passage, the glue G is applied to the back of the body B by the glue application roller 6 (see FIG. 2C), and the excess glue G is scraped off from the back of the body B by the scraper roller 7 (FIG. 2). (D) and FIG. 3 (A)). In this case, as shown in FIG. 3A, when the body B passes over the scrape roller 7, a part of the excess glue G is not scraped off by the scrape roller 7 at the rear end edge of the body B in the traveling direction. 3 and then hangs down from the back of the body B as shown in FIG.

  Thereafter, the body B is folded back from the stop position and allowed to pass over the scrape roller 7, and then stopped (see FIG. 3C). Further, the body B is folded back from the stop position and passed over the scrape roller 7. (See FIG. 3D) and conveyed to the cover attaching unit 3. And the extra glue G pushed up by the scrape roller 7 at the rear end edge of the main body B while the main body B reciprocates over the scrape roller 7 is almost eliminated.

  Thus, the body B sandwiched between the clamp units 4 passes the glue application roller 6 twice and the glue G is applied to the back, and then passes the scrape roller 7 three times. Almost all of the applied excess glue G is scraped off by the scrape roller 7, the glue thickness on the back of the body B becomes uniform, and stringing hardly occurs.

  In addition, in this case, it is not necessary to change the rotational speed (circumferential speed) of the glue application roller 6 and the scrape roller 7 while the body B passes over the gluing unit 2. A complicated apparatus configuration for controlling the rotation speed of the apparatus is unnecessary.

  The body B clamped by the clamp unit 4 stops when it reaches the cover attaching unit 3, and the table 8 swings to the operating position as shown in FIG. 4 (A), whereby the cover K is placed on the back of the body B. At the same time, the pair of nip plates 9a and 9b sandwich the main body B together with the cover K, whereby the cover K is pressed on both sides of the main body B, and the bookbinding product is completed.

  In this case, since an appropriate amount of glue G is uniformly applied to the back of the main body B, the cover is attached to the main body, and a good bookbinding product is obtained, and the cover is set on the table 8. When bound with a ceiling, the surface of the back has no irregularities, resulting in a very beautiful finish.

After that, as shown in FIG. 4B, the pair of nip plates 9a and 9b release the nipping, the table 8 swings to the retracted position, and the clamp unit 4 moves along the extended portion 11b of the slit 11. The body B is stopped in a state where the body B is swung from an upright state until it is inclined at an acute angle, upward, and away from the gluing unit 2.
At this position, the clamping by the clamp unit 4 is released, and the bookbinding product slides down on the sliding plate 17 and falls onto the receiving plate 18 through the discharge port 19 and is taken out from the bookbinding apparatus.

DESCRIPTION OF SYMBOLS 1 Frame 2 Gluing unit 3 Covering unit 4 Clamp unit 4a, 4b Clamp plate 5 Glue tank 6 Glue application roller 7 Scraping roller 8 Tables 9a, 9b Nip plate 10 Horizontal shaft 11 Slit 11a Body part 11b Extension part 12a, 12b Roller 13a to 13e First to fifth pulleys 14 Motor 15 Endless belt 16 Booklet discharge portion 17 Sliding plate 18 Receiving plate 19 Discharge port B Body F Conveyance path G Glue K Cover

Claims (1)

A gluing unit and a cover attaching unit that are spaced apart from each other along the conveyance path on the lower side of the conveyance path of the main body, and the body is held in an upright state, and the width of the spine is moved to the conveyance path. And a clamping unit that conveys along the
The gluing unit has a glue tank, and a glue application roller and a scrape roller that are arranged in the glue tank and are spaced apart from each other in the conveyance direction of the main body and extend in parallel across the conveyance direction,
While the body sandwiched by the clamp unit with its back facing downward is passed through the gluing unit, the glue is applied to the spine by the rotating glue applicator roller, and excess glue is applied by the scrape roller. In a bookbinding apparatus in which the cover is then scraped off, then transported to the cover attaching unit, and the cover is attached to the back by the cover attaching unit.
The scrape roller is disposed on a side closer to the cover attaching unit than the glue application roller, with a gap larger than the thickness of the body from the glue application roller,
The body sandwiched between the clamp units is passed through the gluing unit from the cover attaching unit side, and then folded back through the gluing unit, and then folded back through the scraping rollers of the gluing unit. After being staked, the bookbinding apparatus is folded and passed through the scrape roller and conveyed to the cover attaching unit.

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