JPH0372478B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically performing back stiffening and subsequent peeling in bookbinding, and more specifically, a device for automatically performing back stiffening and subsequent peeling in bookbinding, and more specifically, a device for automatically performing back stiffening and subsequent peeling in bookbinding. This invention relates to a device for peeling off each group of paper sheets after applying an adhesive to one side (spine part) of a stacked paper block and stiffening the back.

Currently, most of the binding of notebooks and books is automated, but most of the stiffening and peeling of paper sheets such as slips, forms, receipts, flyers, catalogs, and booklets is still done manually. Specifically, the process is as follows.

After finishing and cutting the paper sheets with a cutting machine, a group of paper sheets in which one book's worth of sheets are assembled in the correct order is stacked on a plurality of assembly tables.

Next, apply adhesive to the spines of the paper blocks stacked on the table using a brush or roller.

Thereafter, the adhesive applied to the spine is dried while applying pressure from above the paper block.

Finally, a knife is inserted into the adhesive-applied part of the paper leaf block, and the paper is peeled off to separate each group of paper sheets.

Conventionally, paper sheets have been stiffened and peeled off using this method, mostly manually, which requires a lot of manpower and a lot of time.

The present invention was created in view of the above circumstances, and makes it possible to continuously and automatically perform backing and peeling in the bookbinding process.
This provides a back stiffening/stripping device.

That is, the present invention moves while being supported by at least one pair of sprockets, and provides a release agent 9 with adhesive repellency at one end of each group 8 of a plurality of aligned sheets 8. A first conveyance means 1 having feeding claws attached at appropriate intervals to push and feed the accumulated paper blocks 5; a first conveyance means 1 provided along the conveyance direction of the first conveyance means 1 for loading and moving the paper blocks; a conveyance table 6 for moving the paper block 5 on the conveyance table 6, which is disposed adjacent to a part of the conveyance table 6 along the conveyance direction of the first conveyance means 1; A first guide plate 1 in which only the side end face portion is gently sloped.
0 and the first guide plate, the paper block 5 whose end face side on the side of the release agent 9 is fed out, is pressed against the conveyance table 6 and the first guide plate 10 side while moving together with the first conveyance means 1. 11, an adhesive application means 15 provided in close proximity to the side end surface of the paper block 5 fed out by the feed/transport means, on which the release agent is applied; A second guide plate 12 is provided next to the conveyance table 6 along the conveyance direction of the first conveyance means 1 for returning the sheet to its original state, and a second guide plate 12 is provided to transport the sheet block 5, which has been returned to its original state, on the conveyance table 6.
A third conveying means 17 that moves together with the first conveying means 1 is provided with a pressing means 19 for pressing and pinching in a direction, and on the adhesive coated side of the paper block 5 conveyed by the third conveying means 17. a compressing/drying means comprising a dryer 18 provided therein; a fourth conveying means 22, 23 consisting of opposing endless belts that convey paper blocks 5 on which the applied adhesive has been dried while sandwiching them; and said conveying means 2.
Each of the peeling means includes a plurality of pressing rollers that alternately press each sheet block 5 toward the opposing belt through the conveying means so that the paper block 5 conveyed by the paper sheets 2 and 23 is meanderingly conveyed in the thickness direction. This is a back stiffening/stripping device characterized by comprising means.

The present invention will be described in detail below with reference to the drawings.

1 and 2 show a schematic front view and a schematic plan view, respectively, of the present invention. 1 is a first conveying means (chain, belt, etc.) that rotates in the direction of arrow 3 while being supported by sprocket 2; As shown in FIG. 3, the first conveying means 1 is provided with a plurality of feeding claws 4 at appropriate intervals.
This feed claw 4 is for conveying the paper block 5 in the direction of the arrow 3, and is used to feed the paper block 5 on one side of the paper block 5 placed on the conveyance table 6 provided along the conveyance direction of the first conveyance means 1. , and serves to move the paper block 5 in the direction of the arrow 3 as the first conveyance means 1 moves.

In the present invention, the paper block 5 refers to a plurality of stacked paper groups 8 in which paper sheets 7 such as slips, forms, receipts, flyers, catalogs, and pamphlets are combined in an orderly manner, as shown in FIG. It consists of 9 in the figure is a release agent layer provided on a part of the back side of the last page of each sheet group 8, 8, . . . .

Reference numeral 10 denotes a first guide plate provided along the first conveying means 1 and the conveying table 6, and it continues to guide the paper block 5, which has been pushed on the conveying table 6 by the feed pawl 4, together with the conveying table 6. It is a base plate for support. This first guide plate 10 has almost the same configuration as the conveyor table 6, but as can be seen from FIG. 5, a part of it is gently inclined (15° to 25°). Therefore, the paper block 5 moving on the first guide plate 10 and the conveyance table 6 is fed out with one side (spine portion) corresponding to the inclination angle of the first guide plate 10. This drawn-out surface is the back portion and is coated with adhesive.

11 is a second conveyance means (endless belt),
Together with the first guide plate 10, it constitutes a feeding/conveying means. The conveying direction and conveying speed of this second conveying means 11 match those of the first conveying means 1. A spring 1 is mounted on the second conveying means 11.
A pressing roller 14 is provided which rotates while being pressed downward at 3. Therefore, paper leaf block 5
is sandwiched between the first conveying means 1 and the second conveying means 11, and is moved between the conveying table 6 and the first conveying means by the pressure roller 14.
It moves in the direction of arrow 3 while being pressed against the guide plate 10 side.

Reference numeral 15 denotes an adhesive application roller constituting a part of the adhesive application means, and an adhesive storage container (not shown).
An adhesive stored in the adhesive is applied to the surface via an applicator roller (not shown). This adhesive application roller 15 is connected to the first conveying means 1 and the second conveying means 1.
It is provided along the moving direction of the conveying means 11, and the adhesive on the surface is applied to the adhesive coated side of the paper block 5 fed out by the feeding and conveying means. The paper block 5 on which the adhesive has been applied is sent to drying means (dryer 18). This drying means operates in synchronization with the moving speed of the first conveying means 1 while sandwiching the second guide plate 12 for restoring the feeding of the paper block 5 and the conveying table 6. The first conveying means 1 via the moving third conveying means 17 (endless belt)
A pressing means such as a pressing roller or a pressing plate 19 for pressing the paper block 5 to the side and a dryer 18 provided on the adhesive-coated surface side of the paper block 5 are respectively provided.

The second guide plate 12 is located adjacent to the conveyance table 6 along the conveyance direction of the first conveyance means 1, and has almost the same structure as the first guide plate 10, but the entire second guide plate 12 is horizontal. The only point that is marked is the first guide plate 10.
(See Figures 5 and 7). Therefore, the paper block 5 that moves on the second guide plate 12 and the conveyance table 6 while being pressed by the third conveyance means 17 returns to its original state, and the spine becomes vertical. .

Further, the pressing means includes a pressing roller or a pressing plate 19, a spring 20, and an adjusting screw 21 for adjusting the pressing force of the spring 20. This pressing means is provided so that the adhesive can efficiently penetrate between the paper sheets, and is adjusted so that the height of the paper block 5 is compressed by about 5 to 10 mm.

The dryer 18 is provided to accelerate the drying of the adhesive, and FIG. 7 shows a heater (an infrared heater, a hot wire heater, etc.). This heater is used to prevent the paper block 5 from burning if the device stops for some reason.
As shown by the broken line, it seems to escape to the rear.

When using an electron beam curing type adhesive, an electron beam trading company's device can be used as the dryer 18.

The paper block 5 on which the adhesive has dried is sent to a peeling means. This peeling means is a set of fourth conveying means 2 that conveys the paper block 5 while pinching it.
The paper blocks 5 transported by the fourth transport means 22, 23 and the fourth transport means 22, 23
The pressure rollers 24 are provided so as to apply strong pressure through the transport means 22 and 23, and the pressure rollers 24 are arranged so that the strong pressure points on the respective conveying means 22 and 23 are alternated. The paper block 5 that has entered between the fourth conveying means 22 and 23 is squeezed vertically by the pressing rollers 24 provided alternately, so that the paper block 5 is separated into each group of paper sheets. Each separated paper sheet group is discharged outside the apparatus.

In the present invention, the peeling means is used to separate the consolidated paper blocks 5 into groups of paper sheets, but it is difficult to perform the complicated sorting (peeling operation) that is performed by humans. So,
In order to ensure that such peeling can be carried out reliably and efficiently, a peeling mechanism is used to prevent the adhesive applied to the adhesive-applied surface of the paper block 5 from entering between the groups of paper sheets and adhering them to each other. It is preferable to form a layer. (Refer to Figure 4) Since the present invention has the above-described configuration, backing during bookbinding and subsequent peeling can be performed continuously and automatically without the need for manual labor, making it possible to save labor and increase speed. Become.

[Brief explanation of drawings]

1 and 2 are a schematic front view and a schematic plan view of the present invention, FIG. 3 is an explanatory diagram of the first conveying means, and FIG.
The figure is an explanatory diagram of the paper leaf block, Fig. 5 is an explanatory diagram of the feeding/conveying means and the adhesive application means, Figs. 6 and 7 are explanatory diagrams of the compression/drying means, and Fig. 8 is an explanatory diagram of the peeling means. Figures are shown respectively. DESCRIPTION OF SYMBOLS 1...First conveyance means, 4...Feeding claw, 5...Paper block, 6...Transportation platform, 7...Paper sheets, 8...
... Paper sheet group, 9 ... Peeling layer, 10 ... First guide plate, 11 ... Second transport means, 15 ... Adhesive application roller, 17 ... Third transport means, 18 ... Dryer, 22 , 23... Fourth conveyance means, 24... Press roller.

Claims (1)

[Claims] 1. A backing/stripping device characterized by comprising the following means. A paper leaf block that moves while being supported by at least one pair of sprockets and accumulates a plurality of aligned paper sheet groups 8 by providing an adhesive-repellent release agent 9 at one end of each group 8. a first conveying means 1 having feeding claws attached at appropriate intervals to push and feed the paper blocks; a conveying table provided along the conveying direction of the first conveying means 1 for loading and moving the paper blocks; 6. Only the side end surface portion provided with the release agent 9 of the paper block 5 that moves on the conveyance table 6, which is adjacent to a part of the conveyance table 6 along the conveyance direction of the first conveyance means 1. The first guide plate 1 is gently inclined.
0 and the first guide plate, the paper block 5 whose end face side on the side of the release agent 9 is fed out, is pressed against the conveyance table 6 and the first guide plate 10 side while moving together with the first conveyance means 1. 11, an adhesive application means 15 provided in close proximity to the side end surface of the paper block 5 fed out by the feed/transport means, on which the release agent is applied; A second guide plate 12 is provided next to the conveyance table 6 along the conveyance direction of the first conveyance means 1 for returning the sheet to its original state, and a second guide plate 12 is provided to transport the sheet block 5, which has been returned to its original state, on the conveyance table 6.
A third conveying means 17 that moves together with the first conveying means 1 is provided with a pressing means 19 for pressing and pinching in a direction, and on the adhesive coated side of the paper block 5 conveyed by the third conveying means 17. a compressing/drying means comprising a dryer 18 provided therein; a fourth conveying means 22, 23 consisting of opposing endless belts that convey paper blocks 5 on which the applied adhesive has been dried while sandwiching them; and said conveying means 2.
Peeling means comprising a plurality of pressing rollers that alternately press each sheet block 5 to the opposing belt side through the conveying means so that the paper block 5 conveyed by the paper blocks 2 and 23 is conveyed meanderingly in the thickness direction thereof.