JPH0789670A - Formation of section and device therefor - Google Patents

Abstract

PURPOSE:To prevent the back crack due to the excessive folding by preventing the paper clogging and breakage due to the catching slip-off by previously forming the intermittent cut parts in the vicinity of the position corresponding to the foldings in the parallel folding of a web and cutting the excessive rest part by a folding blade. CONSTITUTION:A web which is sent in between a sawing drum 22 and a folding drum 23 by a nip roller is cut by a sawing cutter device 13e and a sawing cutter receiver 14c, and cut parts are formed continuously at the positions corresponding to the foldings in the parallel folding by a partial cutter 41 and a partial cutter receiving device 42. Further, after transfer, the whole surface of the rest part is cut by inserting a blade 27p having the intermittent cutting edges to the intrusion position to the folding blade receiving part 33. Since, at this time, a biting plate 34 is at the position free of the cutter of the blade 27p having the intermittent cutting edges, a cut fold section can be grasoed before the cut fold section is cut perfectly. Accordingly, the cut sheet can be transferred surely, and the trouble such as the paper lagging and breakage due to the catching slip-off can be prevented.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art A conventional signature creating apparatus (parallel folding machine) will be described with reference to FIGS. 12 and 13. 1 in FIG. 12 is a signature creating apparatus, and the signature creating apparatus 1 includes a first stage nipping pin. A horizontal sewing machine 3 including a grawler 2, a horizontal perforation cylinder 4 and a receiving cylinder 5 for perforating parallel folds, a second-stage nipping roller 6, a stacking cylinder 7, a folding cylinder 8, and a gripper cylinder. 9 and
Transport conveyor 10, impeller 11, and discharge conveyor 12
And are provided.

A single machine (a cylinder having a circumferential length L) shown in FIG. 12 is provided with one set of saw blade devices 13a on the horizontal sewing machine cylinder 4, and one set of saw blade receivers 14a is provided on the receiving cylinder 5. There is. Further, five sets of needle devices 15b having saw blade receivers 14b are provided on the stacking cylinder 7 of the 2.5 times cylinder (circumferential length 5 / 2L) of FIG. 13, and the double cylinder (circumferential length 2L) is folded. The barrel 8 is provided with two sets each of a needle device 15c and a folding blade device 16 in which a saw blade device 13c is combined.
Two pairs of gripper devices 17 are provided.

A web that is folded in two in the running direction by a triangular plate or a web that does not pass through a triangular plate is perforated in the width direction of the web by the horizontal sewing machine 3 in order to perform parallel folding accurately and easily. , The second-stage nipping roller 6 sends it between the stacking cylinder 7 and the folding cylinder 8, folds it in, cuts it by the saw blade device 13c and the saw blade receiver 14b, and a signature of length L (triangular plate folding). Or become a sheet. After that, it is folded in parallel to form a 1 / 2L signature, or cut at a position corresponding to the cut of the parallel folding to form a 1 / 2L cut signature. Hereinafter, this point will be described. (1) When the sheet is folded in parallel and ejected, 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 in the standby position. There is no piercing). The pierced web moves 1/2 turn together with the folding cylinder 8
The rear end is cut by the set of saw blade devices 13c to form a sheet of length L. After that, the sheet is carried by the needle device 15c, the center portion of the sheet in the length direction is inserted into the gripping device 17 by the folding blade device 16, and the sheet is folded in two to obtain the length L /
It becomes 2 parallel signatures. The needle device 15d is in the standby position. (2) When cutting at a position corresponding to a fold of parallel folding and ejecting as two cutting signatures (hereinafter referred to as propeller extraction), the folding blade device 16 of the folding cylinder 8 is removed, and the saw blade is cut. The device 13'c is attached so that a cut signature of length L / 2 can be created.

When the parallel folding of the above (1) is performed by the stacking mechanism of the stacking cylinder 7 (a mechanism for stacking by the rotation of the cam, not shown), the needle device 15b at the standby position is used as a cutting signature. Make a puncture near the tip. That is, when the needle device 15c of the folding cylinder 8 is aligned with the position of piercing the web, the needle device 15b of the stacking cylinder 7 is not pierced when matched, and only the needle device 15c is pierced. However, the saw blade device 13'c
The needle device 15b, which comes to a position where the web is cut by the saw blade receiver 14b of the stacking cylinder 7, pierces, and the cutting signature cut to L / 2 makes one rotation together with the stacking cylinder 7, and the needle device 15c
Are piled up at the position where they pierce the subsequent web, and the needle device 15
pierced by c. At this time, the needle device 15b is retracted and released from the cutting signature. This weighting occurs because the circumferential lengths of the folding cylinder 8 and the stacking cylinder 7 are 4: 5, which are deviated by L / 2.

The plurality of cut signatures thus pierced by the needle device 15c are pierced and replaced by the needle device 15d which was in the standby position in the above item (1). In this case, the gripping device 17 is in a standby state and does not operate. The parallel folded signature and the cut folded signature are carried out of the machine from the gripper cylinder 9 through the conveyor 10, the impeller 11 and the discharge conveyor 12.

The positions of the sewing machine blade device 13a and the sewing machine blade receiver 14a in the circumferential direction can be adjusted so that the horizontal perforations are located at the center length L / 2 of the sheet having the length L. .

[0008]

The conventional signature producing apparatus (parallel folding machine) shown in FIGS. 12 and 13 has the following problems. (A) When the bellows are taken out, the stacking mechanism of the stacking cylinder conveys the cutting signature by the needle device of the stacking cylinder, and as described above, the needle device of the gripping cylinder replaces the cutting signature by the impeller or the like. In case of folding with a chopper, it is to make a gap with the previous signature, but the stacking mechanism is very complicated,
In addition to the high cost, the switching operation requires a lot of time. Also, the blade device of the folding cylinder and the saw blade device must be replaced, and the needle device of the stacking cylinder and the gripping cylinder must be operated and deactivated. (B) The cutting signature is pierced by the needle device of the stacking cylinder, the cutting signatures are stacked by the needle device of the folding cylinder, pierced, and further delivered to the needle device of the gripping cylinder by piercing. There are many needle holes, and the needle holes become larger, and the area around the needle holes swells due to piercing. The blister causes a jam when loading a cutting signature, and causes a misalignment when cutting the needle hole portion. (C) In order to insert a horizontal perforation, a dedicated horizontal perforation device must be provided. (D) At the time of extrusion, the sheet is inserted into the companion gripping device by the folding blade, but at this time, since the gripping claw and the folding blade are pulled out while maintaining a gap, the gripping phenomenon that the sheet slips out of the gripping device easily occurs, Therefore, troubles such as paper jams are likely to occur. (E) When unfolding, since the gripper of the gripper is a full-width grip, when the sheet is inserted into the gripper by the folding blade, the entire folding part (width) of the sheet is pressed, so the fold is strong. Problems such as back cracking tend to occur.

The present invention has been proposed in view of the above problems, and an object of the present invention is to reduce the time required for the switching work, and at the same time, reduce the cost and the space. . Further, it is possible to prevent the deterioration of the appearance due to the enlargement and increase of the needle holes as much as possible. In addition, it is possible to prevent the deviation of the load when stacking the cutting signature due to the blister of the needle hole and the deviation of the cutting when cutting. In addition, it is possible to prevent inconveniences such as paper jams and tears due to slipping out of the grip, and to prevent back cracking due to over-folding that occurs when a folding blade with a full-scale blade or a full-scale gripping plate is used. Further, the present invention aims to provide a signature making method and apparatus capable of preventing a load deviation when stacking a cutting signature due to a swelling of a needle hole and a cutting deviation when cutting, and eliminating the need to cut a needle hole portion. .

[0010]

In order to achieve the above object, (1) the method of making a signature according to the present invention is directed to a parallel signature by one cylinder and the other cylinder and a fold of this parallel signature. In a signature creation device that creates a cutting signature that is cut near the position corresponding to, when creating a cutting signature, the intermittent signature that is put in advance near the fold-corresponding position of the parallel fold of the web is created. It is characterized in that the remaining portion of the cut is cut by a folding blade provided on the one cylinder. (2) The signature creating device of the present invention is a signature that creates a parallel signature by one cylinder and the other cylinder and a cut signature cut near the position corresponding to the fold of the parallel signature. In the creating device, a partial cutting cutter device for intermittently making cuts in advance, a folding blade with an interrupting blade provided on the one cylinder to cut the remaining portion of the cut, and an interrupting provided on the other cylinder A folding blade receiver with a blade and a holding plate having a holding portion at a position corresponding to the intermittently inserted cut are provided. (3) The signature producing device without a needle hole of the present invention includes a parallel signature by one cylinder and the other cylinder, and a cut signature cut near the position corresponding to the fold of the parallel signature. In a signature creation device to be created, a partial cutting cutter device that holds the tip of the web with a claw or a member equivalent thereto and intermittently makes cuts, and cuts the remaining part of the cut provided on the one cylinder A folding blade with an intermittent blade, a folding blade receiver with an intermittent blade provided on the other cylinder, and a holding plate having a holding portion at a position corresponding to the intermittently inserted cut.

[0011]

As described above, the signature making method of the present invention creates a parallel signature and a cut signature cut near the position corresponding to the fold of the parallel signature by one cylinder and the other cylinder as described above. In the signature creating device, when creating a cutting signature, the folding blade provided on the one of the cylinders makes a residual portion of the intermittent cut previously placed near the position corresponding to the fold of the parallel fold of the web. Disconnect. At that time, the signature creating device of (2) or (3) is used.

[0012]

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

The saw cylinder 22 of a single cylinder (circumferential length L) is provided with one set each of a saw blade device 13e and a partial cutting cutter device 41 for intermittently making cuts at positions corresponding to parallel folds. The folding cylinder 23 having a double cylinder (circumferential length 2L) is provided with two sets of the needle device 15c having the saw blade receiver 14c and the folding blade device 25 having the partially cutting cutter receiver 42, and the holding cylinder 24 is provided with the pair. Is
Two sets of gripping devices 26 are provided at equally spaced L / 2 positions on the circumference.

A web folded in two in the running direction by the triangular plate 18 or a web that does not pass through the triangular plate 18 is a first stage nipping roller 2 and a second stage nipping roller 6.
Is fed between the saw cylinder 22 and the folding cylinder 23 by the saw blade device 13e and the saw blade receiver 14c to be a signature of a length L (triangular plate folding) or a sheet, and the signature. Alternatively, there is a case where a cut signature is formed and a cut is intermittently made in the central portion L / 2 of the signature or the sheet by the partial cutting cutter device 41 and the partial cutting cutter receiver 42.

The signature (triangular plate fold) or the sheet is parallel-folded by the same method and apparatus in any case. Hereinafter, this point will be described. The folding blade device 25 of the folding cylinder 23 shown in FIG. 2 and FIG. 3 is capable of exchanging mutually replaceable blade-less folding blades 27l (having notches in the gripping jaws) or the remaining portions of the cuts. A pair of folding blade holders 28 for fixing the folding blades 27p with intermittent blades or the folding blades 27n with sewing machine blades, a holder receiver 29, a spring 30, a folding blade case 31, and a shaft 35.
2 and 4, the gripping device 26 includes a seat 32,
Folding blade receiver 33 or metal receiver 33 'made of rubber or an elastic member similar to this provided on seat 32 and swingable holding plate 34 (sheet that is folded or cut by the side surface of protruding seat 32) In order to hold a signature, the swingable gripper plate 34) is provided with a gripper intermittently provided at a position corresponding to a cutting edge of the partially cutting cutter device 41. (See FIG. 7) (1) When parallel folding, as described above, the saw blade device 13e and the saw blade receiver 14c are cut into sheets having a length L (the partial cutting cutter device 41 is removed, Partial cutting is not performed.) It rotates with the folding cylinder 23 by the needle device 15c,
When the sheet is carried and the needle device 15c sinks from the cylinder by a cam device (not shown), the folding blade device 2
5, the central portion in the lengthwise direction of the sheet is inserted into the gripping device 26 and folded in two to form a parallel signature with a length of L / 2. At this time, it is preferable to use the bladeless folding blade 27l, but it is also possible to use the intermittent blade folding blade 27p or the sewing blade folding blade 27n. Each of the folding blades is inserted only up to a position before coming into contact with the folding blade receiver 33 or the pedestal 33 '(the tip insertion position of the folding blade is adjusted by an eccentric bush for supporting the shaft 35). (2) When cutting at the position corresponding to the fold of parallel fold,
The sheet carried by the needle device of the folding cylinder 15c is intermittently cut by the partial cutting cutter device 41 and the partial cutting cutter receiver 42 at the position corresponding to the fold of the parallel fold, and further conveyed. The remaining portion is inserted into the folding blade receiver 33 or the pedestal 33 'by inserting the folding blade 27p with an intermittent blade into the folding blade receiver 33 or the pedestal 33', and the entire surface is cut. The cutting needle device 15c is sunk from the cylinder by a cam device (not shown), and is disposed between the side of the seat 32 and the holding plate 34 which is provided with a holding portion intermittently at the bladeless position of the folding blade 27p with an intermittent blade. The cut signatures, which have become a single cut signature, are sandwiched and conveyed. At this time,
Since the holding plate 34 is located at the position where the folding blade with an intermittent blade 27p does not have a blade, it can be grasped (closed) before the cutting signature is completely cut. (3) When performing perforation at the same time when the perforations are inserted in the folds of the parallel fold, the intermittent folding blade 27n with a perforated blade is used and is inserted up to the position where it enters the blade receiver 33 or the pedestal 33 '. At this time, the partially cutting cutter device 41
Is partially replaced with the perforated perforated sewing machine blade cutter device 41f. (4) The partial cutting cutter device 41 that preliminarily intermittently cuts in parallel folds, or the partial cutting perforation sewing machine blade-equipped cutter device 41f and the partial cutting cutter receiver 42 is used as the saw cylinder 2
2 and the folding cylinder 23, the horizontal sewing machine or the pushing cylinder as shown in FIG. 1 (the tip of the sheet is pushed into the folding cylinder).
It may be provided (not shown). (5) The gripper cylinder 24 may be provided with both a gripper device 26 having a gripper plate with intermittent gripper parts and a gripper device 26f having a full-scale gripper plate, and may be switched and used by a clutch or the like. (6) The shape of the folding blade with an intermittent blade 27p and the folding blade with a sewing blade 27n may be any shape such as a straight blade or a saw blade. (7) The folding blade device 25 has a fixed blade system in which the folding blade 27 shown in FIG. 5 does not move, or a rotary blade system in which the folding blade 27 shown in FIG. 4 swings by a cam or a cam roller (not shown). However, any method is acceptable. (8) FIGS. 8, 9, 10 and 11 show a pinless type signature making apparatus (parallel folding machine). Among them, FIGS. 8 and 9 are acceleration type pinless parallel folding machines, and FIGS.
Reference numeral 1 denotes a constant velocity type pinless parallel folding machine in which the front end of the web is pushed into the folding cylinder 23 and is held and conveyed by a holding claw 58 built in the folding cylinder 23.

In the case of the acceleration type pinless parallel folding machine shown in FIGS. 8 and 9, the web carried by the nipping rollers 2 and 6 is
It is cut by a cutting device (a cutter device 45, a cutter receiver 46) including a cutter cylinder 43 and a cutter receiver 44, and the cut web is accelerated by a speed increasing belt 47, so that Since a gap S is formed between the webs and a space for the claw 48 is formed, the tip of the web is held by the claw 48 and is conveyed.

Then, parallel and cut signatures are prepared in the same manner as described above. When making a cut signature, the cutter cylinder 43, the partial cutting cutter device 41 and the partial cutting cutter receiver 42 installed on the cutter receiving cylinder 44 intermittently connect the signature or the central portion L / 2 of the sheet. Is cut.
In the case of the constant velocity pinless parallel folding machine shown in FIGS. 10 and 11, the web carried by the nipping rollers 2 and 6 is held by the waist belts 53 and then the second
The leading edge is cut by the cutter device 57, and then the leading edge of the web is pushed into the folding cylinder 23 by the holding blade 56 of the tip holding cylinder 55, and is held and conveyed by the holding claw 58 built in the folding cylinder 23. Then, parallel and cut signatures are created in the same manner as above.

When making a cutting signature, the first cutter cylinder 4
The partial cutting cutter device 41 and the partial cutting cutter receiver 42, which are installed on the first cutter receiving body 50 and the first cutter receiving cylinder 50, intermittently cut the signature or the central portion L / 2 of the sheet.

[0019]

As described above, according to the present invention, it is only necessary to provide a saw cylinder which does not require a stacking mechanism, instead of a stacking cylinder having a complicated stacking mechanism as described above. In addition to this, cost reduction and space saving can be achieved. Further, since the number of times of handing over the cutting signature by the needle device can be reduced, it is possible to prevent deterioration of the appearance due to enlargement and increase of the needle holes as much as possible.

Further, it is possible to prevent the deviation of the load when stacking the cutting signature due to the blister of the needle hole and the deviation of the cutting when cutting. In addition, intermittent cuts are made by a partial cutting cutter device, the remaining part of the cut is cut (completely cut) by a folding blade with an intermittent blade, and an intermittent gripping plate provided in the notch part of the folding blade with an intermittent blade. Because the cutting signature is added before completely cutting with
The cut sheet can be conveyed reliably, and inconveniences such as paper jams and tears due to slipping out of the gripper can be prevented, and back cracking due to over-folding that occurs when a folding blade with a full-scale blade or a full-scale gripping plate is used can be prevented.

Further, by combining with the pinless parallel folding method, the needles are eliminated on both sides of the cutting signature,
Cutting swelling due to swelling of the needle hole can prevent misalignment of the load when stacking and cutting, and further, there is no needle hole, so it is not necessary to cut the needle hole part.

[Brief description of drawings]

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

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

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

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

FIG. 5 is an explanatory view of the operation when parallel folding.

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

FIG. 7 is an explanatory diagram showing a positional relationship between a cutting edge of a partially cutting cutter device, a folding blade with an intermittent blade, and a holding plate of a holding device in a parallel folding direction.

FIG. 8 is a side view showing another embodiment of the signature creating apparatus of the present invention.

FIG. 9 is a side view showing a state in which the tip of the web is gripped by the claw of the same signature creating apparatus.

FIG. 10 is a side view showing still another embodiment of the signature creating apparatus of the present invention.

FIG. 11 is a side view showing a state in which the leading edge of the web is held by the folding cylinder and the leading-end pressing cylinder of the same signature creating apparatus.

FIG. 12 is a side view showing a conventional signature creating apparatus (parallel folding machine).

FIG. 13 is a side view showing a stacking cylinder, a folding cylinder, and a gripping cylinder of the same signature creating apparatus.

[Explanation of symbols]

21 Folding device (parallel folding machine) 22 Saw cylinder 23 Folding cylinder 24 Holding cylinder 25 Folding blade device 26 Holding device 26f Full-face holding device 27 Folding blade 27l Fluteless blade 27n Folding blade with sewing machine blade 27p Folding blade with intermittent blade Blade 32 Seat 33, 33 'Folding blade receiver, pedestal 34 Holding plate 35 Shaft 41 Partial cutting cutter device 41f Partially perforated cutter device with cutting blade 42 Partial cutting cutter receiver 43 Cutter cylinder 44 Cutter receiver 45 cutter Device 46 Cutter Receptor 47 Acceleration Conveyor Belt 48 Claw 48 'Claw Seat 49 1st Cutter Cylinder 50 1st Cutter Receptacle 51 1st Cutter Device 52 1st Cutter Receptor 53 Girth Conveyor Belt 54 2nd Cutter Receptacle 55 Pressing for Tip Body 56 Pressing blade 57 Second cutter 58 Holding jaw 59 Holding jaw seat 60 Acceleration Type pinless signature making device (parallel folding machine) 61 Constant velocity type pinless signature making device (parallel folding machine)

Claims (3)

[Claims] 1. A signature producing apparatus for producing a parallel signature by one cylinder and the other cylinder and a cutting signature cut in the vicinity of a position corresponding to the fold of the parallel signature. When creating a signature, a signature is created by cutting the remaining part of the intermittent cut previously placed near the position corresponding to the fold of the parallel fold of the web by the folding blade provided on the one cylinder. Method. 2. A signature preparing apparatus for preparing a parallel signature and a cut signature cut near a position corresponding to a fold of the parallel signature by one cylinder and the other cylinder, in advance, intermittently. Partial cutting cutter device to put a cut into, a folding blade with an intermittent blade provided on the one of the cylinders to cut the remaining portion of the cut, and a folding blade with an intermittent blade provided on the other cylinder, An apparatus for creating a signature, comprising: a holding plate having a holding portion at a position corresponding to the intermittently inserted cut. 3. A signature preparing apparatus for preparing a parallel signature by one cylinder and the other cylinder and a cut signature cut in the vicinity of a position corresponding to the fold of the parallel signature, wherein A partial cutting cutter device that holds a claw or a member corresponding to this and intermittently makes cuts, a folding blade with an intermittent blade that is provided on the one cylinder and cuts the remaining portion of the cut, and the other of the other A device for creating a signature without a needle hole, characterized by comprising a folding blade receiver with an intermittent blade provided on a body, and a holding plate having a holding portion at a position corresponding to the intermittently inserted cut .