JP4266066B2 - Sheet-like material transfer path switching device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for switching a conveyance path of a sheet-like material in a folding machine or the like of a rotary printing press.
[0002]
[Prior art]
The web-fed rotary printing press is provided with a folding machine that cuts the dried and cooled web every predetermined length after printing or folds the web in the width direction or the length direction. There are two types of folding using this folding machine: Former fold, in which the web before cutting is half-folded in the width direction with a former, and the folded signature is folded in half in the length direction with a folding cylinder, or folded in four in parallel. There are two types of folding or parallel diffracting and chopper folding that folds parallel folded signatures in the orthogonal direction with a chopper, and these folding methods are selected according to the specifications of the signature and used alone. Some of these may be combined.
[0003]
By the way, the chopper folding device among the folding devices is limited in the processing speed of the signature as compared with other folding devices due to its structure. Therefore, the upper and lower two stages of the chopper folding device are installed in one folding machine, and the signatures from the parallel folding device are decelerated by the upper and lower decelerating cylinders (crossing cylinders) and distributed to both chopper folding apparatuses. In order to increase the speed of the folding machine, it has been done.
[0004]
As this type of folding machine, there is a conventional one disclosed in, for example, Japanese Patent No. 2566265. According to this, parallel folding two-stage paper discharge (paper discharge in two upper and lower two lines) to parallel folding merged paper discharge (discharge in one upper or lower line) or vice versa. It is possible to change the folding specifications by changing the paper series and switching whether or not both chopper folding devices are used, so that it is not necessary to install a stacker in each paper discharge series. It aims to increase the efficiency of paper and simplify the post-processing process for printing paper.
[0005]
[Problems to be solved by the invention]
By the way, when the folding specification is changed as described above, there is a timing at which the signature is simply passed without operating the gripping claw device at the upper speed reduction cylinder or the lower speed reduction cylinder on the upstream side in the paper discharge direction. In order to avoid interference between the gripping claws and signatures at such times, in the conventional folding machine, the phase of the upper reduction cylinder or the lower reduction cylinder is changed by adding a phase change gear (gearing) or double cylinder ( It was changed depending on the structure.
[0006]
Therefore, when switching folding specifications, high accuracy return is required to stabilize folding accuracy and conveyance accuracy without being affected by folding specification switching, and phase addition gears and a double cylinder structure make it possible to There is a problem that the switching structure becomes complicated, the number of parts increases, and the manufacturing cost increases.
[0007]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a transport path switching device for a sheet-like material that can switch the transport path without changing the phase of the cylinder and can stabilize the transport accuracy and simplify the transport path switching structure. There is.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the configuration of the present invention includes a first cylinder that includes a plurality of sheet holding means for holding a sheet-like material in the circumferential direction and is rotatably supported, and the first cylinder. A plurality of gripping claw devices that are in contact with each other and hold a sheet-like object in a circumferential direction, a second cylinder that is rotatably supported, and a holding that holds the sheet-like object in contact with the first cylinder A third cylinder provided with a claw device and rotatably supported; a conveying path for passing the sheet-like material from a sheet holding means of the first cylinder only to a holding claw device of the second cylinder; In the conveyance path switching device for a sheet-like material, comprising a switching mechanism for switching the conveyance path to be transferred from the sheet holding means of the first cylinder to the holding claw device of the second cylinder and the holding claw device of the third cylinder. the addition TsumeSo location of the second cylinder, mulberry adding said sheet And position, comprising the pawl operation switching means in addition allow to take a retracted position retracted from the added sheet which is held open from the position in the first cylinder.
[0009]
The claw motion switching means includes a second actuating member supported movably on the device frame side, and the second actuating member moves the gripper claw device of the second trunk to the retracted position. It is made to move .
[0010]
The claw movement switching means is fixed to the apparatus frame side, and a cam follower on the claw shaft of the gripper claw device is driven to move the gripper to the gripping position so as to move to the apparatus frame side. The cam mechanism is provided with a sub cam having a cam curve that is supported by the cam follower on the claw shaft of the grip claw device and moves the claw to the retracted position.
[0011]
An opening position for receiving a sheet-like material from the sheet holding means of the first cylinder to the holding claw device of the second cylinder is provided between the holding position and the retracted position.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a sheet-like material conveyance path switching apparatus according to the present invention will be described in detail with reference to the accompanying drawings.
[0013]
[First embodiment]
FIG. 1 is a cylinder arrangement diagram of a folding machine of a rotary printing press according to a first embodiment of the present invention, FIG. 2 is a structural diagram of a cam mechanism, FIG. 3 is an operation explanatory diagram, and FIG. .
[0014]
As shown in FIG. 1, a parallel folding device 1 for cutting and folding the web W into a predetermined dimension is provided in the traveling direction of the web W that is cooled and dried after being printed and guided to the paper input portion of the folder. The parallel folding device 1 includes a cutting cylinder 2, a folding cylinder 3, and a holding cylinder (first cylinder) 4 that rotate in a direction indicated by an arrow in the drawing.
[0015]
The web W fed between the cutting cylinder 2 and the folding cylinder 3 is cut into a predetermined size by a cutting blade (not shown) of the cutting cylinder 2 and is held by a needle (not shown) of the folding cylinder 3 to be folded. 3 is wound around the lower peripheral surface. Next, the cutting web held by the needle is arranged at a position where the peripheral surface is divided into four parts by the sheet holding means by the cooperation of an insertion knife (not shown) of the folding cylinder 3 with the holding plates 5a to 5d. (A large number are provided on the holding plate shafts 6a to 6d) and are folded half-folded to form a signature (sheet-like material) and are attached to the upper peripheral surface.
[0016]
An upper reduction cylinder (second cylinder) 7 and a lower reduction cylinder (third cylinder) 8 are in contact with the downstream side of the holding cylinder 4, and an upper chopper folding device is provided downstream of the upper reduction cylinder 7. 9 is provided, and a lower chopper folding device 10 is provided downstream of the lower reduction drum 8. The holding cylinder 4, the upper reduction cylinder 7, and the lower reduction cylinder 8 are connected by gears (not shown) so as to rotate at the same rotational speed.
[0017]
A plurality of gripping claws (devices) 12a to 12d provided in the axial direction are provided on the gripping claw shafts 11a to 11d arranged at positions that divide the peripheral surface of the upper deceleration drum 7 into four equal parts. A plurality of gripping claws (devices) 14b and 14d provided in the axial direction are provided on the gripping claw shafts 13b and 13d arranged at positions to bisect the surface. The holding claws 12a to 12d of the upper reduction cylinder 7 are sequentially opposed to the holding plates 5a to 5d of the holding cylinder 4, and the holding claws 14b and 14d of the lower reduction cylinder 8 are only opposed to the holding plates 5b and 5d of the holding cylinder 4, respectively. It is supposed to be. In FIG. 1, 15 is an impeller for discharging paper, and 16 is a conveyor for discharging paper.
[0018]
As shown in FIG. 2, the holding cylinder 4 is provided with a cam mechanism (switching mechanism) 20, and is conveyed from the holding plates 5 a to 5 d of the holding cylinder 4 only to the holding claws 12 a to 12 d of the upper reduction cylinder 7. The path and the transfer path passing from the holding plates 5a to 5d of the holding cylinder 4 to the holding claws 12a and 12c of the upper reduction cylinder 7 and the holding claws 14b and 14d of the lower reduction cylinder 8 are switched.
[0019]
The cam mechanism 20 includes a disk-shaped main cam 24 (see FIGS. 3 and 4) fixed to the end face of the bearing 22 of the printing machine frame 21 with a bolt 23, and a gear on the bearing 22 adjacent to the main cam 24. And an arcuate plate-like sub cam 26 (see FIGS. 3 and 4) supported rotatably via 25a and 25b.
[0020]
3 and 4, the cam follower 27 attached to the shaft end of the holding plate shafts 6a, 6c is driven by the main cam 24 (that is, the holding plates 5a, 5c on the holding plate shafts 6a, 6c). Are opened and closed by a holding plate opening cam curve 24a and a holding plate closing cam curve 24b of the main cam 24), and a cam follower 28 attached to the shaft ends of the holding plate shafts 6b and 6d is driven by the main cam 24 and the sub cam 26. (That is, the holding plates 5b and 5d on the holding plate shafts 6b and 6d are the holding plate opening cam curve 24a and the holding plate closing cam curve 24b of the main cam 24 and the holding plate opening cam curve 26a and the holding of the sub cam 26. It opens and closes by the plate closing cam curve 26b). In FIG. 2, 29 is a handle for rotating the sub cam 26, and 30 is a clamp for fixing the sub cam 26 at a predetermined rotation position.
[0021]
2, the upper speed reduction drum 7 is also provided with a cam mechanism (claw operation switching means) 31, and the gripping claws 12a to 12d of the upper speed reduction drum 7 are operated in the holding position for holding the signature. And a position where the signature is released from the holding position and the signature is released, and a retract position where the signature is further opened from the release position and retracted from the signature.
[0022]
The cam mechanism 31 is a disk-shaped main cam 32 fixed with bolts 42 to the end face of the bearing 41 of the printing press frame 21 as shown in FIG. 2 with reference numerals in parentheses (see FIGS. 3 and 4). And an arcuate plate-like sub cam 33 (see FIGS. 3 and 4) that is rotatably supported on the bearing 41 via gears 43a and 43b adjacent to the main cam 32.
[0023]
As shown in FIGS. 3 and 4, the cam follower 34 attached to the shaft ends of the gripping claw shafts 11a and 11c is driven by the main cam 32 (that is, the gripping claws 12a and 12c on the gripping claw shafts 11a and 11c). The main cam 32 is opened and closed by a cam curve 32a for closing the nail (for releasing the signature) and a cam curve 32b for closing the gripper (for holding the signature), and is attached to the shaft ends of the gripper claw shafts 11b and 11d. The cam follower 35 is driven by the main cam 32 and the sub cam 33 (that is, the gripping claws 12b and 12d on the gripping claw shafts 11b and 11d are used for opening the inner claw of the main cam 32 (for signature release) and a cam curve 32a. Cam curve 32b for closing claw closing (for signature holding) and cam curve 33a for opening the claw nail of sub cam 33 (for releasing signature) and wide opening of the claw claw It opens and closes by a (signature retracting) the cam curve 33b). 2, 44 is a handle for rotating the sub cam 33, and 45 is a clamp for fixing the sub cam 33 at a predetermined rotation position.
[0024]
Because of this configuration, when parallel two-stage discharge (discharge in two lines, upper and lower two stages), as shown in FIG. While being positioned between the speed reduction cylinder 7 and the lower speed reduction cylinder 8, the sub cam 33 of the upper speed reduction cylinder 7 is rotated and positioned at the contact point between the speed reduction cylinder 7 and the holding cylinder 4.
[0025]
As a result, the holding plate shafts 6a and 6c of the holding cylinder 4 are opened and closed by the main cam 24, so that the holding plate opening operation is performed between the holding cylinder 4 and the upper speed reduction cylinder 7 to release the signature. At this time, the gripper claw shafts 11a and 11c of the upper reduction drum 7 are also opened and closed by the main cam 32, so that the gripper claw closing operation is performed between the gripper drum 4 and the upper reduction drum 7 from the gripper plate shafts 6a and 6c of the gripper drum 4. Receive a signature.
[0026]
On the other hand, since the holding plate shafts 6b and 6d of the holding cylinder 4 are opened and closed by the main cam 24 and the sub cam 26, the holding plates 5b and 5d remain closed between the holding cylinder 4 and the upper reduction cylinder 7. At this time, the holding claw shafts 11b and 11d of the upper reduction drum 7 having the same phase as the holding plate shafts 6b and 6d of the holding drum 4 are opened and closed by the main cam 32 and the sub cam 33. The gripping claws 12b and 12d are opened widely, and the gripping claws 12b and 12d are retracted from the signatures conveyed by the gripping plate shafts 6b and 6d of the gripping cylinder 4.
[0027]
The holding plate shafts 6b and 6d of the holding cylinder 4 that have passed between the holding cylinder 4 and the upper reduction cylinder 7 release a signature by the sub cam 26 between the holding cylinder 4 and the lower reduction cylinder 8, and the holding claw 14b of the lower reduction cylinder 8 , 14d.
[0028]
In this way, the signatures of the gripper plate shafts 6a and 6c of the gripper cylinder 4 are transferred to the gripper claw shafts 11a and 11c of the upper reduction drum 7 and conveyed to the upper chopper folding device 9 at the upper stage, where the chopper folding is performed. Is discharged. On the other hand, the signatures of the holding plate shafts 6b and 6d of the holding cylinder 4 are transferred to the holding claw shafts 13b and 13d of the lower reduction drum 8 and conveyed to the lower chopper folding device 10 at the lower stage, where the chopper is folded and discharged. Paper.
[0029]
At the time of parallel folding merged discharge (discharged in a series of upper stages), as shown in FIG. 4, the sub-cam 26 of the holding cylinder 4 is rotated to be positioned between the folding cylinder 3 and the upper reduction cylinder 7. At the same time, the sub cam 33 of the upper decelerating cylinder 7 is rotated to be positioned at a position deviated from the contact point between the decelerating cylinder 7 and the holding cylinder 4.
[0030]
As a result, the gripper plate shafts 6a and 6c of the gripper cylinder 4 are opened by the main cam 24 between the gripper drum 4 and the upper speed reduction drum 7 to release the signature, and the gripper claw shafts 11a and 11c of the upper speed reduction drum 7 are released. Also, the main cam 32 performs a gripping claw closing operation between the gripping cylinder 4 and the upper speed reduction cylinder 7, and receives a signature from the gripping plate shafts 6a and 6c of the gripping cylinder 4.
[0031]
On the other hand, the holding plate shafts 6b and 6d of the holding cylinder 4 release a signature between the holding cylinder 4 and the upper reduction cylinder 7 by the cam curve of the sub cam 26 which is assimilated with the cam curve of the main cam 24, and the upper reduction cylinder 7 has a holding mechanism. The claw shafts 11b and 11d perform a gripping claw closing operation between the gripping cylinder 4 and the upper reduction cylinder 7 by the main cam 32, and receive a signature from the gripping plate shafts 6b and 6d of the gripping cylinder 4.
[0032]
In this way, the signatures of the gripper plate shafts 6a to 6d of the gripper cylinder 4 are passed to the gripper claw shafts 11a to 11d of the upper reduction drum 7, and are all conveyed to the upper chopper folding device 9 at the upper stage, where Folded and discharged.
[0033]
As described above, in this embodiment, the folding specifications can be switched without changing the phase of the cylinder (upper deceleration cylinder 7), so that folding accuracy and conveyance accuracy can be improved and stabilized. That is, in the present embodiment, the sub cam 33 in which the upper deceleration cylinder 7 rotates only avoids the signature, and the main cam 32 that conveys the signature is fixed. The accuracy is not affected at all. In addition, since the configuration of the folding specification switching unit is simplified by the cam mechanism 31 and the number of parts can be reduced, the manufacturing cost is reduced.
[0034]
[Second Embodiment]
FIG. 5 is a cylinder arrangement diagram of a folding machine of a rotary printing press showing a second embodiment of the present invention, FIG. 6 is an operation explanatory view, and FIG. 7 is an operation explanatory view.
[0035]
This is an example in which the parallel folded merged paper discharge at the upper stage in the first embodiment is changed to the parallel folded merged paper discharge at the lower stage. In this case, four gripper claw shafts 13a to 13d are arranged on the lower speed reduction drum 8, and two gripping claw shafts 11b and 11d are arranged on the upper speed reduction drum 7. The two gripping claws 12b and 12d of the speed reduction drum 7 are opened wide by the sub cam 33, and the gripping claws 12b and 12d are moved from the signature conveyed by the gripping plate shafts 6b and 6d of the gripping drum 4. It can be evacuated.
[0036]
Further, the cam mechanism 20 of the holding cylinder 4 includes a disc-shaped first main cam 24 (see FIG. 2) fixed to the printing press frame side, and an arc supported rotatably on the printing press frame side. A plate-like sub cam 26 and a disk-like second main cam 40 fixed to the printing machine frame side are also provided.
[0037]
A cam follower (not shown) attached to the shaft ends of the holding plate shafts 6a and 6c follows the main cam 40 (that is, the holding plates 5a and 5c on the holding plate shafts 6a and 6c are cam curves for opening the holding plate of the main cam 40). The cam follower (not shown) attached to the shaft ends of the holding plate shafts 6b and 6d is driven by the main cam 24 and the sub cam 26 (that is, the holding plate shafts 6b and 6d). The upper holding plates 5b and 5d are opened and closed by a holding plate opening cam curve 24a and a holding plate closing cam curve 24b of the main cam 24, and a holding plate opening cam curve 26a and a holding plate closing cam curve 26b of the sub cam 26. )
[0038]
Accordingly, during parallel two-stage paper discharge (paper discharge in the upper and lower two stages), the signatures of the grip plate shafts 6b and 6d are moved by the main cam 24 and the sub cam 26 as shown in FIG. The signatures of the gripper plate shafts 6 a and 6 c are passed to the gripping claw shafts 13 a and 13 c of the lower speed reduction drum 8 by the main cam 40.
[0039]
On the other hand, in the case of parallel folding merged paper discharge (paper discharge in the lower series), as shown in FIG. 7, the signatures of the holding plate shafts 6b and 6d are connected to the main cam 24 and the sub cam 26 (from the above state). Is moved to the gripping claw shafts 13b and 13d of the lower reduction drum 8, and the signatures of the gripping plate shafts 6a and 6c are transferred to the gripping claw shafts 13a and 13c of the lower reduction drum 8 by the main cam 40. .
[0040]
Since other configurations are the same as those of the first embodiment, the same members as those of the first embodiment (FIGS. 1 to 4) are denoted by the same reference numerals, and redundant description is omitted.
[0041]
In this embodiment, the same operation and effect as in the first embodiment can be obtained.
[0042]
[Third embodiment]
FIG. 8 is a front view showing the structure of the gripper claw motion switching means according to the third embodiment of the present invention, and FIG. 9 is a side view showing the structure of the gripper claw motion switching means.
[0043]
This is the same as in the first embodiment (same as in the second embodiment). The main cam 32 and the sub cam 33 of the upper reduction cylinder 7 are added to the claw shafts 11a to 11d side, and the cam followers 34 and 35 are installed in the printing machine. This is an example provided on the frame 21 side.
[0044]
That is, a pin (first operating member) 34A corresponding to the cam follower 34 is fixed to a predetermined position of the printing machine frame 21, and a pin (second operating member) 35A corresponding to the cam follower 35 is fixed to the air cylinder 50. The main cam lever 32A corresponding to the main cam 32 is fixed on the gripping claw shafts 11a to 11d, respectively, and the sub cam lever 33A corresponding to the sub cam 33 is fixed to the gripping claw shaft. 11b and 11d are fixed adjacent to the inside of the cam 32A.
[0045]
For parallel folded merged paper discharge (paper discharge in the upper line), the pin 35A is positioned at the solid line position so that only the main cam lever 32A engages with the pins 35A and 34A. 12d operates as open->close-> open, and when parallel two-stage paper discharge (paper discharge in the upper and lower two stages), the pin 35A is positioned at the two-dot chain line position, so that the gripper shaft The sub cam lever 33A on the claw shafts 11b and 11d is engaged with the pin 35A only by engaging the main cam lever 32A on the pins 11a and 11c with the pins 35A and 34A, and the holding claws 12a and 12c are opened → closed → opened. The gripper claws 12b and 12d are retracted greatly while operating.
[0046]
In this embodiment, the same operation and effect as in the first embodiment can be obtained.
[0047]
In addition, this invention is not limited to said each Example, A various change is possible in the range which does not deviate from the summary of this invention. For example, the cylinder configuration is a cutting cylinder, a folding cylinder, a holding cylinder, an upper reduction cylinder, a lower reduction cylinder, a cutting cylinder, a folding cylinder, a holding cylinder, a reduction cylinder, a first transfer cylinder, and a second transfer cylinder. The gripper plate (shaft) can be changed to a six-body type, or the gripper plate (shaft) can be placed in two locations in the circumferential direction. The shaft) may be one or two in the circumferential direction, and further, a holding plate (shaft) and upper and downstream holding claws (shaft) may be provided at an even number. Also, change the gripper plate-claw nail signature delivery to a claw-claw nail signature delivery, or abolish the claw nail opening movement of the upper decelerating gripper claw movement. This operation may also be used as a paper release function. Alternatively, the cam follower 35 attached to the shaft ends of the gripping claw shafts 11b and 11d in the upper reduction drum 7 may be divided into two parts and individually driven by the main cam 32 and the sub cam 33, respectively. Further, although the sub cam 33 is configured to be rotatable, the sub cam 33 may be configured to be movable in the body axis direction, and may be engaged with the cam follower 35 when the gripping claws 12a and 12c are retracted.
[0048]
【The invention's effect】
As described above, according to the present invention, there are provided a plurality of sheet holding means for holding a sheet-like object in the circumferential direction, the first cylinder supported rotatably, and in contact with the first cylinder. A gripper device for holding a sheet-like object is provided with a plurality of gripping claw devices for holding a sheet-like material in a circumferential direction, and a second drum supported rotatably, and a gripper-claw device for holding the sheet-like material in contact with the first drum A third cylinder rotatably supported, a conveyance path for passing the sheet-like material only from the sheet holding means of the first cylinder to the gripper device of the second cylinder, and the first A sheet-like material conveyance path switching device comprising a switching mechanism for switching the conveyance path from the sheet holding means of the cylinder to the second claw device of the second cylinder and the claw device of the third cylinder; the addition TsumeSo location of the second cylinder, adding adding the sheet position And a gripper claw operation switching means that can take the retracted position opened from the gripping position and retracted from the sheet-like material held by the first cylinder. Therefore, it is possible to switch the transport path without changing the position, to stabilize the transport accuracy and to simplify the transport path switching structure.
[0049]
The claw motion switching means includes a second actuating member supported movably on the device frame side, and the second actuating member moves the gripper claw device of the second trunk to the retracted position. Since it is characterized by being moved, the gripper operation can be switched with high accuracy by a switching means having a simple structure.
[0050]
The gripper claw operation switching means is fixed to the device frame side, and a cam follower on the claw shaft of the gripper claw device is driven to move the gripper to the gripping position and moves to the device frame side. The cam mechanism is provided with a sub-cam having a cam curve that is supported so that the cam follower on the claw shaft of the grip claw device is driven to move the claw to the retracted position. The gripper claw operation can be accurately switched by the switching means.
[0051]
Further, an opening position for receiving a sheet-like material from the sheet holding means of the first cylinder to the holding claw device of the second cylinder is provided between the holding position and the retracted position. The gripper can be moved finely, and the sheet can be delivered with higher accuracy.
[Brief description of the drawings]
FIG. 1 is a cylinder arrangement diagram of a folding machine of a rotary printing press according to a first embodiment of the present invention.
FIG. 2 is a structural diagram of the cam mechanism.
FIG. 3 is also an operation explanatory view.
FIG. 4 is also an operation explanatory diagram.
FIG. 5 is a cylinder arrangement diagram of a folding machine of a rotary printing press showing a second embodiment of the present invention.
FIG. 6 is an operation explanatory view.
FIG. 7 is also an operation explanatory diagram.
FIG. 8 is a front view showing the structure of a gripper claw operation switching means according to a third embodiment of the present invention.
FIG. 9 is a side view showing the structure of the gripper operation switching means.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Parallel folding apparatus 2 Cutting cylinder 3 Folding cylinder 4 Holding cylinders 5a-5d Holding plate shafts 6a-6d Holding plate shaft 7 Upper reduction drum 8 Lower reduction drum 9 Upper chopper folding device 10 Lower chopper folding devices 11a-11d Holding claw shaft 12a 12d claw (device)
13a-13d Mouth claw shaft 14a-14d Mouth claw (device)
15 Impeller 16 Conveyor 16
20 cam mechanism 21 printing machine frame 22 bearing 23 bolt 24 main cam 24a holding plate opening cam curve 24b holding plate closing cam curve 25a, 25b gear 26 sub cam 26a holding plate opening cam curve 26b holding plate closing cam curve 27 cam follower 28 Cam follower 29 Handle 30 Clamp 31 Cam mechanism 32 Main cam 32A Main cam lever 32a For claw opening in the claw (for folding) Cam curve 32b For claw closing (for capping) Cam curve 33 Sub cam 33A Sub cam lever 33a Claw opening in the claw (Curve release) cam curve 33b gripper wide open (folder retract) cam curve 34 cam follower 34A pin 35 cam follower 35A pin 40 main cam 40a gripper opening cam curve 40b gripper closing cam curve 41 axis 42 volts 43a, 43b gear 44 Handle 45 clamp 50 air cylinder

Claims (4)

There are provided a plurality of sheet holding means for holding the sheet-like material in the circumferential direction, and a first drum supported rotatably, and a gripper device that holds the sheet-like material in contact with the first drum. A second cylinder which is provided in a plurality of locations in the circumferential direction and is rotatably supported, and a gripper claw device which is in contact with the first cylinder and holds a sheet-like material, and which is rotatably supported. 3, a conveyance path for passing the sheet-like material only from the sheet holding means of the first cylinder to the gripper device of the second cylinder, and from the sheet holding means of the first cylinder to the second in conveying route switching apparatus of a sheet having a switching mechanism for switching the conveyance path to pass to the cylinder of the gripper device and the gripper device of the third cylinder, the added TsumeSo location of the second cylinder, A holding position for holding the sheet-like material, and the first position opened from the holding position. Conveying route switching apparatus of the sheet, characterized in that it comprises a pawl operation switching means is added to allow to take from the sheet held on the cylinder and the retracted position retracted. The claw operation switching means includes a second actuating member supported movably on the apparatus frame side, and moves the gripper claw device of the second trunk to the retracted position by the second actuating member. The conveyance path switching device for a sheet-like material according to claim 1.  The claw operation switching means is fixed to the apparatus frame side, and a cam follower on the claw shaft of the gripper claw device is driven to move the gripper to the gripping position. 2. The sheet-like object according to claim 1, wherein the cam mechanism includes a sub-cam having a cam curve in which a cam follower on a claw shaft of the gripper device is driven to move the gripper to a retracted position. Transport path switching device.  2. An opening position for receiving a sheet-like material from the sheet holding means of the first cylinder to the holding claw device of the second cylinder is provided between the holding position and the retracted position. , 2 or 3 conveying path switching device for sheet-like material.

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