JP3241187B2 - Signature making method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for making a signature.

[0002]

2. Description of the Related Art FIG. 1 shows a conventional signature making apparatus (parallel folding machine) for cutting a parallel fold and a position corresponding to the fold of the parallel fold.
1 and FIG. 12, reference numeral 1 in FIG. 11 denotes a signature creating device, which includes a first-stage nipping roller 2 and a horizontal sewing machine cylinder 4 for making a perforation at a parallel fold. A horizontal sewing machine 3 including a receiving cylinder 5, a second-stage nipping roller 6, a stacking cylinder 7, a folding cylinder 8, a gripping cylinder 9,
Conveyor 10, impeller 11, discharge conveyor 12
Are provided.

[0003] A single machine (circumferential length L) horizontal sewing machine 4
And the receiving cylinder 5 are provided with a pair of sewing machine blade devices 13a and sewing machine blade receivers 14a, respectively. As shown in FIG. 12, five sets of needle devices 15b having saw blade receivers 14b are arranged at equal intervals on the circumference of the stacking cylinder 7 having a 2.5-fold cylinder (circumference length of 5 / 2L). On the circumference of the double cylinder (circumferential length 2L) of the folding cylinder 8, a needle device 15c having a saw blade device 13c is provided.
Sets and two sets of folding blade devices 16 are installed at equal intervals,
On the circumference of the holding cylinder 9 of the double body, two sets of the needle devices 15d and two sets of the holding devices 17 are installed at equal intervals.

A web folded in two in the running direction by the triangular plate 18 or a web not passing through the triangular plate 18 is
In order to perform parallel folding accurately and easily by the horizontal sewing machine 3, a perforation is made in the width direction of the web, and the web is fed between the overlapping cylinder 7 and the folding cylinder 8 by the second-stage nipping roller 6, and the sawing is performed. The sheet is cut by the blade device 13c and the saw blade receiver 14b to form a signature (triangular plate fold) or sheet having a length L. Thereafter, the sheet is folded in parallel to form a 1 / 2L signature, or a position corresponding to the fold of the parallel folding is cut to form a 1 / 2L cut signature. Hereinafter, this point will be described. (1) When discharging in parallel, the web is pierced by the needle device 15c and at the same time, the tip of the web is cut by the saw blade device 13c and the saw blade receiver 14b as described above (the needle device 15b is Take the standby position and do not pierce). The pierced web makes a half turn together with the folding cylinder 8, and its rear end is cut by another set of saw blade devices 13 c to have a length L.
Sheet. After the cutting of the rear end, the needle device 15c
Then, the central portion of the sheet in the length direction is inserted into the holding device 17 by the folding blade device 16 and is folded into two to form a parallel signature having a length L / 2. Needle device 15
d is at the standby position. (2) To cut the position corresponding to the fold of the parallel fold and discharge it as two cut signatures (hereinafter, referred to as “pelling out”), remove the folding blade device 16 of the folding cylinder 8 and saw the blade. A device 13'c is mounted to allow cutting signatures of length L / 2. Further, by the stacking mechanism of the stacking cylinder 7 (a mechanism for performing the stacking by rotating the cam, not shown), the needle device 15b at the standby position at the time of the parallel folding described in the above (1) is moved to the end of the cutting signature. Try to pierce near you. That is, when the needle device 15c of the folding cylinder 8 is aligned with the position where the needle device 15c of the folding cylinder 8 penetrates the web, the needle device 15b of the stacking cylinder 7 does not pierce when the needle device 15c is fitted. Do. However, the needle device 15b, which comes to a position where the saw blade device 13'c cuts the web by the saw blade receiver 14b of the stacking cylinder 7, performs piercing,
The cut signature cut to L / 2 makes one rotation together with the stacking cylinder 7, weighs at a position where the needle device 15c penetrates the subsequent web, and is penetrated by the needle device 15c. At this time, the needle device 15b is retracted and comes off the cut signature. This weighting occurs because the circumferential length of the folding cylinder 8 and the overlapping cylinder 7 is 4: 5, and is shifted by L / 2.

A plurality of cut signatures pierced by the needle device 15c in this manner are replaced by the needle device 15d located at the standby position in the above-mentioned item (1). In this case, the holding device 17 is in a standby state and does not operate. The parallel signatures and the cut signatures are carried out of the machine from the holding drum 9 via the conveyor 10, the impeller 11 and the discharge conveyor 12.

[0006] The sewing machine blade device 13a is arranged so that the horizontal perforation is located at the position of the center length L / 2 of the sheet having the length L.
The circumferential position of the sewing machine and the sewing machine blade receiver 14a is adjusted. The horizontal perforation is placed at the 1 / 2L position when it is folded, and this position is folded by the folding blade device 16 and inserted into the holding device 17 to form a signature. Do not use a horizontal sewing machine when pulling out.

[0007]

The conventional parallel folding machine shown in FIGS. 11 and 12 has the following problems. (A) When the propeller is taken out, the cutting signature is stacked by the stacking mechanism of the stacking cylinder, carried by the needle device of the folding cylinder, and pierced by the needle device of the holding cylinder as described above is discharged by an impeller or the like. This is to keep a space between the signature and the previous signature when folding with a chopper. However, the stacking mechanism is very complicated, the cost is high, and the switching operation requires a considerable time.

In addition, operations such as replacement of the blade device of the folding cylinder and the saw blade device, and switching of the operation and non-operation of the needle device of the overlapping cylinder and the holding cylinder must be performed. (B) Since the cut signature is pierced by the needle device of the stacking cylinder, the cutting signature is overlapped and pierced by the needle device of the folding cylinder, and then passed by being pierced to the needle device of the grip cylinder, the cut signature is delivered. Has many needle holes. In addition, the needle hole becomes larger,
The area around the needle hole is swollen by piercing. The blisters may cause congestion when stacking cut signatures, and may cause misalignment when cutting the needle hole. (C) A special horizontal perforation device must be provided to make horizontal perforations. (D) Since the web is carried by the needle, there is a needle hole in the cut signature, so that the periphery of the needle hole is swollen. This blister is
At the time of loading the cut signature, it may cause the load to collapse, and the appearance is poor, so it is necessary to cut the needle hole again.

The present invention has been made in view of the above problems, and has as its object to reduce the time required for the switching operation, and also achieve a reduction in cost and space. . In addition, it is possible to prevent the appearance from being deteriorated due to the enlargement and increase of the needle holes. In addition, it is possible to prevent the load from being displaced when stacking the signatures and the cutting deviation from being cut. In addition, it is possible to prevent a deviation between a perforation position and a fold due to a change in tension. Another object of the present invention is to provide a method and an apparatus for creating a signature, which can eliminate the need for cutting the needle hole.

[0010]

In order to achieve the above object, (1) a signature creation method according to the present invention is characterized in that a signature or a sheet is gripped by one cylinder and transferred to the other cylinder. the signature or longitudinal center near the sheet grabbing at one cylinder is cut between the one cylinder and the other cylinder and two cutting signatures, these two cut signatures Precede our
End of the cutting signature in the direction of travel and the subsequent cutting signature
And a forward end portion, the addition by the other cylinders of the grippers, is characterized by transferring. (2) signature production apparatus of the present invention, folding blur tipped to one cylinder
Is provided on the other body in contact with the one body
Signature provided with a device and held by said one body
Or the central part in the length direction of the sheet is the folding blade with the blade
Is inserted into the holding device, and the central portion is
It is characterized by being held by a holding device.
You. (3) In the signature making device, the folding blade with blade is used.
Can be adjusted at the tip insertion position with respect to the holding device.
An eccentric bush may be provided. (4) In the signature making device, the one body
Center of the signature or sheet held in the longitudinal direction
Is cut by the folding blade with the blade and cut into two pieces.
And the end of these two cut signatures
The trailing end of the cutting signature to be run and the subsequent cutting signature
The front end in the traveling direction is held by the holding device.
You may make it . (5) In the signature making device, the folding blade with blade is used.
Has a bladeless folding blade or a sewing blade with no blade at the tip
With at least one of the folding blades
It may be exchangeable.

[0011]

Signature production method of working the present invention is constructed as above, the signatures are to transfer grab the signatures or sheets in one cylinder to the other cylinder, grabbed with one cylinder
Or a central vicinity of the sheet is cut between the one cylinder and the other cylinder and two cutting signatures, these two switching
A rear end in the traveling direction of the preceding cutting signature of the signatures,
A traveling direction front end of the succeeding cut signatures, in addition by the other cylinders of the grippers, and transfers. At that time, the signature creating apparatus of (2) to (5) is used.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a signature making apparatus (parallel folding machine) according to the present invention will be described with reference to one embodiment shown in FIGS.
Reference numeral 1 denotes a signature creating device. The signature creating device 21 includes a first-stage nipping roller 2, a second-stage nipping roller 6,
A saw cylinder 22, a folding cylinder 23, a gripping cylinder 24, a conveyor 10, an impeller 11, and a discharge conveyor 12 are provided.

A single blade (circumferential length L) saw cylinder 22 is provided with a set of saw blade devices 13e, and a double cylinder (circumferential length 2L) folding cylinder 23 has a saw blade receiver 14c. Two sets of the needle device 15c and the folding blade device 25 are installed, and two sets of the holding devices 26 are installed on the holding cylinder 24 at an interval of L / 2. The web folded in two in the running direction by the triangular plate 18 or the web that does not pass through the triangular plate 18 is fed between the saw cylinder 22 and the folding cylinder 23 by the first-stage nip roller 2 and the second-stage nip roller 6. Then, the sheet is cut by the saw blade device 13e and the saw blade receiver 14c into a signature (folded triangular plate) or sheet having a length L. In the case of a signature or a sheet, it is folded in parallel, cut at a position corresponding to the fold of the parallel fold, or perforated at the same time as the fold is perforated. Hereinafter, this point will be described.

The folding blade device 25 of the folding cylinder 23 shown in FIG.
A pair of folding blade holders that sandwich and fix the next replaceable folding blade, ie, a bladeless folding blade 27e having no blade at the tip, or a folding blade with a blade 27m, or a folding blade with a sewing machine blade 27n. 28, a holder receiver 29, a spring 30, a folded blade case 31, and a shaft 35.
It is composed of

The holding device 26 includes a seat 32 and a seat 32.
And a metal pedestal 33 'made of rubber or an elastic member similar thereto, and a seat 32 slightly protruding.
And a holding plate 34 that swings to hold a sheet folded by the side surface or a cut cutting signature. (1) At the time of parallel folding, the sheet is cut into a sheet of length L by the saw blade device 13e and the saw blade receiver 14c as described above. Then, the needle device 15c rotates and moves together with the folding cylinder 23, and when the needle device 15c is retracted, the folding blade device 25 inserts the central portion of the sheet in the length direction of the sheet into the holding device 26 and is folded into two. , Resulting in a parallel signature of length L / 2.

At this time, it is better to use the blade 27e without a blade, but it is also possible to use a folding blade 27m with a blade or a folding blade 27n with a sewing blade. Each of the folding blades is inserted only up to a position just before coming into contact with the folding blade receiver 33 or the receiving table 33 '. (Adjust the insertion position of the tip of the folding blade using an eccentric bush that supports the shaft 35) (see FIG. 5). (2) When cutting at a position corresponding to the fold of the parallel fold, insert the bladed folding blade 27m to a position where it enters the folding blade receiver 33 or the receiving table 33 'and pierce the sheet by the needle device 15c of the folding cylinder. To make a cut signature. After cutting,
The needle device 15c is sunk from the outer peripheral surface of the cylinder by the cam device (not shown), and at the same time, the cutting signature is sandwiched between the claw 34 and the side surface of the seat 32 to form two cutting signatures. Convey cutting signatures. (3) When performing a parallel fold at the same time as making a perforation in the parallel fold, use a saw blade (intermittent) folding blade 27n with a sewing machine blade to enter the blade receiver 33 or the cradle 33 '. It is inserted to the position and cuts intermittently like a sewing machine, and at the same time, is conveyed while being sandwiched between the gripper 34 and the side surface of the seat 32.

The shape of the blade with a blade or the folding blade with a sewing blade may be any shape such as a straight blade or a saw blade. (4) The folding blade device 25 may be a fixed blade type in which the folding blade 27 shown in FIG. 3 does not move, or a rotary blade type in which the folding blade 27 shown in FIG. 4 swings by a cam or a cam roller (not shown). However, any type may be used. (5) FIG. 7 shows an accelerating pinless signature making apparatus (parallel folding machine), and FIG. 8 shows a state where the web tip is held by a claw 38 of the accelerating pinless signature producing apparatus.

FIG. 9 shows a constant-speed pinless signature making apparatus (parallel folding machine) which pushes the front end of the web into the folding cylinder 23, and holds and transports the web by holding the holding claws built in the folding cylinder 23. Reference numeral 10 denotes a state in which the front end of the web is held by the same speed type pinless signature making apparatus. In the case of the accelerating pinless signature making apparatus shown in FIGS.
6 is cut by a cutting device including a cutter cylinder 36 and a cutter receiving cylinder 37, and the cut web is increased in speed by a speed-increasing conveyor belt 39, so that the preceding web and the succeeding web are cut. A gap S is formed between the web and the web, and a space for inserting the claw 38 is formed. The claw 38 holds the leading end of the web and transports the web. Hereinafter, a parallel signature and a cut signature are created in the same manner as in the case with the needle.

In the case of the constant-speed pinless signature making apparatus shown in FIGS. 10 and 11, the web carried by the nip rollers 2 and 6 is held by a belt-conveying belt 42, and then the second cutter 52 Then, the tip is cut, and then the web tip is pushed into the folding cylinder 23 by the pressing blade 45 of the tip pressing cylinder 44, and is held and transported by the holding claw 46 built in the folding cylinder 23.
Hereinafter, a parallel signature and a cut signature are created in the same manner as in the case with the needle.

[0020]

According to the present invention, the time required for the switching operation can be reduced by merely providing a saw cylinder which does not require a superimposing mechanism instead of the superimposing cylinder having a superimposing mechanism having a complicated structure as described above. In addition to savings, both cost and space can be saved. In addition, since the number of times of passing the cut signature by the needle device can be reduced, it is possible to prevent the appearance from being deteriorated as much as possible by enlarging or increasing the number of needle holes.

In addition, it is possible to prevent the load from being displaced when stacking the signatures due to the bulging of the needle hole and the cutting deviation from being caused when cutting. Further, at the time of the parallel folding, since the parallel folding is performed while making a perforation by the folding blade, the conventional horizontal sewing machine can be omitted, and the cost can be reduced from this point. Further, when the horizontal sewing machine is provided at a position upstream of the folding device including the saw cylinder, the folding cylinder, and the holding cylinder, the perforation position and the fold are shifted due to a change in tension, but this deviation can be prevented.

Also, by combining with the pinless parallel folding method, there is no needle on either the top or bottom of the cutting signature.
It is possible to prevent the load from being displaced when stacking the signatures due to the bulging of the needle hole and the cutting deviation when cutting, and since there is no needle hole, there is no need to cut the needle hole.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a signature creating apparatus according to the present invention.

FIG. 2 is a side view showing a saw cylinder, a folding cylinder, and a holding cylinder of the signature creating apparatus;

FIG. 3 is a side view showing a folding blade device and a holding device of the signature creating apparatus.

FIG. 4 is a side view showing an engaged state between the folding blade device and a holding device.

FIG. 5 is an operation explanatory view at the time of parallel folding;

FIG. 6 is an explanatory diagram of an operation when a sheet is created.

FIG. 7 is a side view showing another embodiment of the signature making apparatus of the present invention.

FIG. 8 is a side view showing a state in which the tip of the web is held by the claws of the signature creating apparatus.

FIG. 9 is a side view showing still another embodiment of the signature making device of the present invention.

FIG. 10 is a side view showing a state in which the leading end of the web is held by the pressing blade of the pressing cylinder for the leading end of the signature making apparatus and the holding claw seat of the folding cylinder.

FIG. 11 is a side view showing a conventional signature making apparatus (parallel folding machine).

FIG. 12 is a side view showing a stacking cylinder, a folding cylinder, and a holding cylinder of the signature creating apparatus;

[Explanation of symbols]

Reference Signs List 21 signature making device (parallel folding machine) 22 saw cylinder 23 folding cylinder 24 gripping cylinder 25 folding blade device 26 gripping device 27 folding blade 27e bladeless folding blade 27m blade folding blade 27n sewing machine blade folding blade 32 seat 33, 33 ′ Folding blade receiver, receiving table 34 Holder plate 35 Shaft 36 Cutter cylinder 37 Cutter receiver cylinder 38 Claw 38 ′ Claw seat 39 Speed-up transport belt 40 First cutter cylinder 41 First cutter receiver 42 Body-circle transport belt 43 Second cutter Receiving cylinder 44 Tip holding cylinder 45 Holding blade 46 Holding claw 47 Holding claw seat 48 Accelerating pinless signature making device (parallel folding machine) 49 Constant-speed pinless signature making device (parallel folding machine) 50 Cutter device 51 Cutter holder 52 Second cutter device

Claims (5)

(57) [Claims] 1. A grab the signatures or sheets on one cylinder when transferring to the other cylinder, before grabbing at one cylinder
The Kiorihinoto or longitudinal central vicinity of the sheet is cut between the one cylinder and the other cylinder and two cutting signatures,
Progression of preceding cutting signature of these two cutting signatures
Direction rear end and the front end in the traveling direction of the subsequent cutting signature ,
The addition by the other cylinders of the added device, signature production method and transferring. 2. A blade with a blade is provided on one of the cylinders.
A gripping device is provided on the other cylinder in contact with the one cylinder, and a length of a signature or a sheet held by the one cylinder is provided.
The center part in the length direction is
Inserted into the holding device, and the central portion is held by the holding device.
A signature creating device characterized by being included . 3. A signature creating apparatus according to claim 2, wherein
Te, the tip insert relative to the grippers of the folding blade with the blade
An eccentric bush that allows position adjustment is provided.
And a signature creating device. 4. A signature creating apparatus according to claim 2 or 3.
The signature or sheet held by the one body
The central part in the length direction is cut by the bladed folding blade
Is cut into two cut signatures, and these two
The trailing end of the preceding cutting section in the traveling direction
And the front end of the subsequent cutting signature in the traveling direction is
A signature making device characterized by being added to the device. 5. A signature creating apparatus according to claim 2 or 3.
In the above, the blade-attached folding blade may be a bladeless folding blade having no blade at its tip.
And / or folding blade with sewing blade
A signature creation device characterized by being replaceable with one folding blade .