JPH02171295A - Support paper attaching device - Google Patents

Abstract

PURPOSE:To accelerate an attaching work and shorten a book binding process by moistening an adhesive with a support paper cut to a specified length held by an attaching device and attaching the support paper to the edge of a folded leaf in transit at a folding base side. CONSTITUTION:Support paper tape C is supplied to the blade tip-engaging section 42 of a fixed blade 40 and a moving blade 41 by means of the roller of a tape supply device 5, and then is sucked to the contact periphery surface 21 of a drum 20 and is held there. A stopper 43 which performs an intermittent contact action in synchronization with the rotation of the drum 20 comes in contact with the support paper tape C and the support paper tape C is held instantaneously at a time when the tips of the fixed blade 40 and the moving blade 41 engage with each other by rotation of the drum 20. Consequently, the support paper tape C is cut by the mutual rubbing action of the fixed blade 40 and the moving blade 41, and the support paper of specified length D moves while being held on the contact periphery surface 21. The support paper D held on the contact periphery surface 21 is moistened by an adhesive moistening device 3, and then is pressed against the edge of a folded leaf A at the folding base side by the drum under a moistened condition and is allowed to attach to the edge.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus for pasting strength paper in a textbook binding process and the like.

[Conventional technology]

Conventionally, most of the binding specifications for textbook binding are wire flat binding specifications. For wire flat binding specifications,
A plurality of folded folded pages (printed and folded into predetermined pages) are bound with wire from the side to the folding edge of the folded folded folded folded folded folded folded folded folded folded folded pages. In this case, in order to prevent the paper from falling out after the wire binding, a strip of paper was pasted in advance to the area to be bound with wire to maintain the strength of the bound area. The pieces of paper used for this purpose are called kirikami.

[Problem to be solved by the invention]

However, the pasting of the above-mentioned paper was done manually, but the work was very complicated, and there was a problem in that it was impossible to speed up the pasting work, that is, to shorten the bookbinding process. .

Therefore, it has been a challenge to improve the bookbinding process by automating the work of pasting paper.

[Means to solve the problem]

The present invention has been made in consideration of the above-mentioned problems, and is made by applying adhesive-coated paper tape to a predetermined length on the folding edge side of signatures being transported by a conveyor or other transport means. This is a device for pasting cut papers, in which the cut papers are held under suction on the abutting circumferential surface of a rotating drum, and the abutting circumferential surface is attached to the side of the signature on the folding side. an adhering means for adhering the paper to the signatures in contact with each other; and a humidifying means for disposing steam pipes facing the contact peripheral surface of the drum and spraying steam toward the paper on the contact peripheral surface. a cutting means that cuts the paper tape by intermittently applying the cutting edge of the movable blade to the fixed blade in conjunction with the rotating drum, and folding the paper tape toward the joining portion of the fixed blade and the movable blade. The above-mentioned problem is solved by providing a paper pasting device characterized by having a tape supply means that supplies the tape at the same speed as the tape transport speed.

[For production]

In the present invention, the paper tape is sent by the tape supply means to the joining part of the fixed blade and the movable blade of the cutting means, and the paper cut into a predetermined length by the cutting means is held in the pasting means. The adhesive (rewetting adhesive) of the strength paper is humidified by the humidifying means while the strength paper is held by the pasting means, and the strength paper is pasted on the side of the folding side of the signature being transported. Ru.

〔Example〕

Next, the present invention will be explained in detail based on the embodiments shown in FIGS. 1 to 4.

FIGS. 1 and 2 show a first embodiment.

In the figure, reference numeral 1 denotes a paper pasting device, and the paper pasting device 1 is used for folding signatures A (multiple folds), which are transported at predetermined intervals by a conveyance means (not shown), as shown in FIG. A pasting means 2 includes a fan-shaped drum 20 that rotates in the direction in which the signatures are transported in a bundled state, and a steam pipe 30 is placed opposite the rotating drum 20 from the upstream side in the direction in which the signatures are transported. a cutting means 4 consisting of a fixed blade 40 screwed to the fixed seat B and a movable blade 41 screwed to the drum 20; and a force paper tape C supplied to the fixed blade 40 side of the cutting means. and a tape supply means 5 consisting of a plurality of rollers.

The drum 20 of the pasting means 2 rotates in synchronization with the transfer timing of the signatures A, and the arc-shaped abutment circumferential surface 21 traces the side surface on the folding side of each signature A that is sequentially transferred. Treat yourself like that. A suction hole 22 is provided in the abutting peripheral surface 21 for holding paper cut into a predetermined size by a cutting means 4, which will be described later, and this suction hole 22 is connected to a suction source such as a vacuum pump. For example, by opening and closing a suction passage formed in the rotational center 23 of the drum 20 in synchronization with the rotation of the drum 20, the suction action of the suction hole 22 can be maintained from receiving the paper to pasting it on the signature side. It is provided so that it occurs for a period of time. The steam pipe 30 of the humidifying means 3 is curved in an arc shape so as to face the abutment peripheral surface 21 of the rotating drum 20, and steam flows from the steam pipe 30 toward the abutment peripheral side. It's being sprayed.

In the cutting means 4, the movable blade 41 has a cutting edge 41a protruding from the rear end side of the contact peripheral surface 21 of the drum 20. The movable blade 41 is adjusted in position with respect to the drum 20, and the fixed blade 40 is installed in a position adjusted with respect to the fixed seat B so that the blades are aligned with each other in a straight line as shown in FIG.

The tape supply means 5 supplies the paper tape C at the same speed as the signature transport speed. Here, strength paper tape is made of unbleached kraft paper (100g/V) and has a width of 7.5m.
, with a thickness of 14 to 15/100u and a rewetting adhesive coated on the back side. The paper tape C is supplied by the roller of the tape supplying means 5 toward the blade edge joining portion 42 of the fixed blade 40 and the movable blade 41, and is then fed to the drum 20.
is attracted to and held on the abutment peripheral surface 21 side. drum 20
When the fixed blade 40 and the movable blade 41 are rotated so that the blade edges of the fixed blade 40 and the movable blade 41 come together, the stopper 43, which performs an intermittent contact operation in synchronization with the rotation of the drum 20, comes into contact with the paper tape C. is held momentarily, and the force paper tape C is cut by the mutual rubbing between the fixed blade 40 and the movable blade 41, and a predetermined length of force paper is held on the contact peripheral surface 21 and moved.

The stopper 43 releases the paper tape C after cutting is completed. Reference numeral 44 is a section that absorbs slack caused by holding the stopper 43.

As described above, the paper adhesive held on the abutting peripheral surface 21 is wetted by the humidifying means 3, and in this state is pressed and adhered to the side surface of the signature A on the fold side by the drum 20.

Thereafter, the paper tape is sequentially cut by the cutting means, and while the paper of a predetermined length is held on the abutting periphery of the drum, the adhesive is spread by the humidifier, and the pressing force of the drum causes the signature to be cut. It is attached to the side surface on the folding side, and the signature is sent out for the next binding process.

3 and 4 show a second embodiment. In this second embodiment, a fixed blade 40 is screwed to the fixed seat B with a gap through which the paper tape C passes, and a fixed blade 40 is moved so that the moving direction is perpendicular to the fixed blade 40. The blade 41 is attached movably (moves forward and backward) relative to the fixed seat B. The movable blade 41 is provided so as to move forward intermittently in synchronization with the rotation of the drum 20 so as to scrape the cutting edge 40a of the fixed blade 40 to cut the paper tape C. The movement of the movable blade 41 is controlled by an L-shaped arm 6 that is in contact with the movable blade 41 and is constantly biased in the backward direction of the movable blade.
The movable blade is rotated in the forward direction by a cam 7 fixed to the drum 20, and the movable blade 41, which is always urged in the backward direction by a spring or the like (not shown), is pushed out to cut the paper tape as described above. This is what I decided to do.

Reference numeral 8 indicates a shoulder center cam that adjusts the amount of movement of the movable blade.

In this second embodiment, in particular, the attachment of the fixed blade and the movable blade to the fixed seat, that is, the alignment of the blade edges of the fixed blade and the movable blade, is done by positioning and fixing the blade edge of the fixed blade so that it touches the side surface of the movable blade that is moved forward. The fixed blade and movable blade can be easily replaced without requiring delicate adjustment of the blade edge alignment.

It is not easily affected by rattling on the drum side and can maintain good sharpness over a long period of time.

〔Effect of the invention〕

As explained above, according to the present invention, the paper pasting device attaches a paper tape coated with adhesive to a predetermined side surface of the folding side of the signatures being transported by a conveyance means such as a conveyor. This is a device for pasting paper cut into lengths, and the cut paper is held under suction on the circumferential surface of a rotating drum, with the circumferential surface facing the folding edge of the signature. an adhesion means for adhering the force paper to the folded signature in contact with a side surface of the drum, and a steam pipe disposed facing the contact peripheral surface of the drum, and a steam pipe directed toward the force paper on the contact peripheral surface. a humidifying means for blowing steam from a pipe; a cutting means for cutting the paper tape by applying the cutting edge of a moving blade to a fixed blade intermittently in conjunction with a rotating drum; and alignment of the cutting edges of the fixed blade and the moving blade. Since the present invention is equipped with a tape supply means for supplying the strength paper tape toward the section at the same speed as the transport speed of the signatures, it is possible to automatically attach strength paper of a predetermined length to the signatures that are sequentially transported. This method has excellent practical effects, such as no need for manpower for pasting paper and an efficient bookbinding process.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a first embodiment of the paper pasting device according to the present invention, FIG. FIG. 4 is an explanatory diagram showing the state of blade edge alignment in the second embodiment. 1... Device for pasting paper 2... Pasting means 20... Drum 3... Humidifying means 4... Cutting means 40. ... Fixed blade 5 ... Tape supply means 6 ... Arm 7 ... Cam 8 ... Eccentric cam 30 ... Steam pipe 41...Moving blade

Claims (1)

[Scope of Claims] Strength paper made by cutting strength paper tape coated with adhesive into a predetermined length is affixed to the side surface of the folding side of the signatures being transported by a conveyance means such as a conveyor. The apparatus comprises a device that holds the cut paper on the contacting peripheral surface of a rotating drum in a suction state, and sticks the paper on the signature with the corresponding circumferential surface in contact with the side surface on the folding edge side of the signature. a humidifying means for arranging a steam pipe to face the contact peripheral surface of the drum and spraying steam from the steam pipe toward the paper on the contact peripheral surface; a cutting means that cuts the paper tape by intermittently applying the blade edge of a movable blade in conjunction with the rotating drum; A paper pasting device characterized by comprising a tape supply means for supplying tape at the same speed.