JPH0595941U - Sheet transport device - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide an apparatus capable of easily and accurately performing fine adjustment of a moving support frame when changing a paper size. [Structure] A fixed support frame 37 for supporting the paper pressing roller 43 is provided. The paper pressing roller 5 is supported by the fixed support frame 37.
A moving support frame 85 for supporting the roller 6 and the brush roller 57 is provided. A motor 62 for moving the moving support frame 85 according to the paper size and a brake 61 for braking the movement of the moving support frame 85 are provided. A manual operation device for manually moving the moving support frame 85 is provided, and the brake 6 is interlocked with the manual operation.
The braking release device including the meshing teeth 87 for releasing the braking of the movable support frame 85 by the No. 1 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention, in a sheet-fed printing machine, a punching machine, etc., transports the paper loaded on the paper stack on the paper stack, sucked by the sucker device and sent to the feeder board, the running paper feed tape, and the paper feed tape. The present invention relates to a sheet transporting device that is sandwiched by a paper pressing member that is pressed against a tape and is transported.

[0002]

[Prior Art]

 The sheet feeding device of a sheet-fed printing press is equipped with a paper stacking platform that automatically mounts a paper stacking plate loaded with printing paper and a sucker device that is above the stacking platform and has a suction port for sucking paper. The sheets stacked on the paper stack are sucked one by one from the upper layer by the suction port, and are conveyed forward by the movement of the suction port. A paper feed roller and a paper feed roller that are in contact with each other are vertically arranged in front of the sucker, and the paper conveyed by the suction port is caught by these rotating paper feed rollers and paper feed rollers. It is sent forward.

In front of the paper feed roller and the paper feed roller, a feeder board that inclines so as to become lower as it goes forward is generally supported. Above the feeder board, the paper feed roller and the paper feed roller are provided. A sheet feeding device is provided for feeding the paper fed by the feed roller toward the difference plate in front of the feeder board.

This sheet conveying device is configured as disclosed in, for example, Japanese Utility Model Publication No. 62-116048 and Japanese Utility Model Publication No. 3-44759. That is, this sheet transporting device is equipped with a plurality of paper feed tapes that are arranged in parallel in the width direction of the paper and are attached to the surface of the feeder board and run in the vertical direction of the paper. Is a support frame formed in the shape of a frame consisting of front and rear bars extending in the width direction of the paper, and a plurality of bars connecting the bars in the front and rear direction and extending in the front and rear direction directly above each paper feed tape. However, the rear end is pivotally supported to the body side so as to be swingable. A paper feed roller is pivotally attached to the free end of the arm supported by each bar by pressing the paper feed tape with a spring member and abutting against the front pad of the front end of the slip plate. A brush roller, which is formed in the shape of a rotating brush, is pressed against the rear end of the stopped paper in the same manner as the paper feed roller.

With this configuration, the paper fed onto the feeder board is sandwiched between the traveling paper feeding tape and the paper feeding roller pressed against the paper feeding tape, and the paper is directed toward the difference plate on the feeder board. It is conveyed by a swing device, and is brought into contact with a front pad of the front end of the slip plate to stop, so that the register is aligned. Since the brush roller is pressed against the rear end of the paper that comes into contact with the front pad and stops, the paper that comes into contact with the front pad is not returned by the reaction.

When the paper size changes, the rear end portion of the paper that comes into contact with the front pad and stops changes. Therefore, the brush roller or the front paper supported integrally with the brush roller is changed. The feed rollers must be moved in the vertical direction of the paper according to the paper size, but in the above device, many brush rollers and paper feed rollers must be moved manually one by one. Since it does not happen, there is a problem that it takes a lot of labor and a long time.

In order to solve such a problem, a device disclosed in, for example, Japanese Patent Application Laid-Open No. 2-276645 has been proposed in the past. This will be described below. The support frame is divided into a fixed support frame that is fixed to the machine body and a movable support frame that can move in the vertical direction of the paper.The fixed support frame supports the paper feed rollers for paper transport. There is. Further, a brush roller and a paper feed roller corresponding to the rear end portion of the stopped paper are supported on the moving support frame. The moving support frame is configured to move by being driven by a motor, and the motor and a transmission device that converts the rotational movement of the motor into forward and backward movements and transmits the movement to the moving frame are supported on the side of the moving support frame. ing.

[0008]

[Problems to be solved by the device]

 However, in such a conventional sheet conveying apparatus, when the moving support frame is moved and adjusted so as to correspond to the paper size, a motor or the like to which the control device is not attached while observing the positional relationship of the paper pressing member. Since the fine adjustment must be performed by the drive device, it is difficult to perform fine adjustment, not only requires a lot of labor and long time, but also a problem that the feeding failure is likely to occur due to the lack of precise fine adjustment. There is.

The present invention has been made in view of the above points, and provides a sheet conveying apparatus capable of easily and accurately performing fine adjustment of a moving support frame when changing a paper size. The purpose is to

[0010]

[Means for Solving the Problems]

 In order to achieve such an object, according to the present invention, in a sheet conveying apparatus, a fixed support frame that supports a paper pressing member is supported on the machine frame side, and the paper holding member is fixed to the fixed supporting frame. The movable support frame that supports the movable support frame is movably supported in the vertical direction of the transport paper, the drive device that moves the movable support frame, the braking device that brakes the movement of the movable support frame, and the movable support frame are manually operated. A manual operation device that is moved with the manual operation device and a release device that operates in conjunction with the manual operation of the manual operation device to release the braking of the moving support frame by the braking device are provided.

[0011]

[Action]

 The paper fed onto the feeder board is sandwiched between the paper pressing member supported by the fixed supporting frame and the moving supporting frame and the paper feeding tape, and is conveyed by the traveling of the paper feeding tape. If the size of the paper being conveyed changes, the drive device is actuated and the dynamic force is converted to forward / backward movement by the transmission device and transmitted to the moving support frame, which moves the moving support frame in the vertical direction of the paper. Then, the paper pressing member supported by this is adjusted so as to correspond to the paper size. In this case, fine adjustment may be necessary depending on the paper thickness and paper quality.For this reason, if the manual operation device is manually operated, the braking of the moving support frame by the braking device is released in conjunction with this operation. Since you can adjust manually while looking at the paper pressing member, accurate and quick fine adjustments can be performed.

[0012]

【Example】

 1 to 10 show an example in which the sheet conveying apparatus according to the present invention is applied to a two-color printing sheet-fed printing machine. FIG. 1 is a plan view of the sheet conveying apparatus, and FIG. 2 is a sheet conveying apparatus. FIG. 3 is a front view of the sheet conveying device, FIG. 4 is a front view of a moving support frame advancing / retreating drive device, FIG. 5 is a sectional view taken along line VV of FIG. 4, and FIG. 6 is VI- of FIG. VI sectional view, FIG. 7 is a sectional view taken along line VII-VII of FIG. 4, FIG. 8 is a front view taken along line VIII of FIG. 1, FIG. 9 is a sectional view taken along line IX-IX of FIG. 8, and FIG. It is a schematic front view of a sheet-fed printing press.

In FIG. 10, the printing machine includes a paper feeding device 1, two sets of a printing unit 2 and a paper discharging device 3, and the paper feeding device 1 includes a paper stack plate 5 on which paper 4 is stacked. A paper stack 7 is provided which is mounted and hung by a lifting chain 6. Further, a plate cylinder 8 and a blanket cylinder 9 are arranged in the respective printing units 2 so that their peripheral surfaces are in contact with each other. Are arranged in contact with each other. A pair of left and right sprockets 12 are axially mounted coaxially with the discharge cylinder 11 that is in contact with the impression cylinder 10. Between the sprocket 12 and the sprocket 13 of the discharge device 3, there are left and right. A pair of paper ejection chains 14 is stretched.

A plurality of sets of gripper devices (hereinafter referred to as “claws”) including a claw and a claw base are arranged in parallel on each of the claw rods supported at regular intervals between the left and right discharge chains 14. Below the terminal end of the paper discharge chain 14, a paper stacking platform 16 for mounting a paper stacking plate 15 on which the paper 4 that is released from the grip of the paper discharge chain 14 and falls is mounted by the lifting chain 17. It is hung and provided. On the other hand, a transfer cylinder 18 is in contact with the impression cylinder 10, and a claw of a swing device 19 is in contact with the transfer cylinder 18. In addition, a paper feed roller 20 and a paper feed roller 21 are provided vertically and in contact with each other at a position near the upper front of the paper 4 stacked on the paper stack plate 5 of the paper feeder 1. A sheet conveying device 30 according to the present invention is arranged between the paper feeding roller 20 and the paper feeding roller 21 and the swing device 19. A not-shown sucker device is arranged above the stacked sheets 4 of the sheet feeder 1.

With this configuration, the sheets 4 stacked on the sheet stacking plate 5 of the sheet feeding device 1 are sucked one by one from the upper layer by the suction port of the sucker device, and are advanced by the suction port advancement. It is captured by the paper feed roller 20 and the paper feed roller 21 and sent out. The fed-out paper 4 is conveyed by a paper feeding / conveying device 30 which will be described later in detail, and then is supplied to the impression cylinder 10 through the swing device 19 and the transfer cylinder 18, and the paper 4 is covered with rubber before and after. Two-color printing is applied as it passes between the cylinder 9 and the impression cylinder 10. The printed paper 4 is gripped between the claws of the impression cylinder 10 and the discharge chain 14 and conveyed by the traveling of the paper discharge chain 14, and is released from the grips of the claws at the end of the conveyance, and the stacking board Dropped and loaded on top of 15.

Therefore, the sheet feeding and conveying device 30 according to the present invention will be described in detail. Reference numeral 31 in FIG. 2 denotes a feeder board which is formed in a rectangular plate shape in a plan view and is supported so as to be inclined so that it becomes lower toward the front. The pull roller 32 is rotatably supported by its both ends on the left and right frame 34 sides of the sheet feeding device 1 and is rotatably driven by a driving device (not shown). A tape roller 33 is rotatably supported. Between these tape rollers 32 and 33 and a tension roller (not shown), a plurality of paper feed tapes 35 are arranged in parallel in the axial direction of the paper 4 and are stretched by being attached to the surface of the feeder board 31. ..

A pair of bearings 36 are fixed to the start end of the feeder board 31 at both left and right ends of the feeder board 31, and the left and right bearings 36 are fixed to the constituent members of the fixed support frame 37. The tubular bar 38 is rotatably supported at both ends. The fixed support frame 37 includes the bar 38, a bar 39 located above the terminal end of the feeder board 31 and extending in the width direction of the feeder board 31, and one end of each of the bars 38 fixed by clamping. A pair of left and right connecting bars 40, 41 having the other end fixed to both ends via a bearing 40a and an elbow 41b, front and rear bars 38, and a rear bar 39 are provided at a plurality of locations corresponding to the paper feed tape 35 (the present embodiment). It is formed in a frame shape with a support bar 42 that is connected at six places in the example. As described above, both ends of the bar 38 are rotatably supported by the bearing 36, so that a fixed support frame is formed. The whole 37 is formed so as to be swingable around the bearing 36.

At the rear half of each support bar, one or two paper pressing levers 43 as paper pressing members are supported via brackets 44 and leaf springs 45. Is pressed against the paper feed tape 35 (not shown in FIG. 1) running just below it by the elastic force of the plate spring 45. The fixed support frame 37 configured as described above and swingably supported by the bearing 36 is provided with a drive device for swinging the fixed support frame 37, and the fixed support frame 37 is opened and jammed in the case of illegal feeding. The fixed support frame 37 can be manually swung as well as the paper 4 and the like can be taken out sideways.

That is, a rocking cylinder 47 as a drive device is rockably supported by a pair of brackets 46 fixed inside the left and right frames 34, respectively, and is moved forward and backward by the fluid pressure. A lever 49 having a long hole 49a is fixed to the working end of the piston rod 48, and pins 50 planted in the connecting bars 40 and 41 are inserted into the long hole 49a. There is. By doing this, when the left and right piston rods 48 are synchronously retracted from the position shown in FIG. 2, the entire fixed support frame 37 swings from the position shown by the solid line 37 to the position shown by the chain line 37A in FIG. The transport surface of is configured to be open.

Reference numeral 52 in FIG. 2 denotes a hook that engages the pin 53 on the fixed support frame 37 side with the groove to lock the fixed support frame 37 between the open position and the closed position. 52 is a hook for engaging the pin 50 with the groove 52a or the groove 52b to lock the fixed support frame 37 in two open positions when the fixed support frame 37 is manually opened. The fixed support frame 37 is configured to be closed by releasing the locking.

The reference numeral L in FIG. 1 is the trailing edge of the largest paper that comes into contact with a paper rest (not shown) and stops, and the reference numeral S is the trailing edge of the smallest paper. In this device, the paper holding member is movable so as to correspond to the trailing edge of the paper whose size is changed within the range of the maximum paper and the minimum paper, and a movable support frame for driving and manually And a device for moving it. That is, the left and right connecting bars 40, 41 are fitted with moving bearings indicated by reference numeral 54 as a whole so as to be movable in the axial direction of the connecting bars 40, 41. , Are connected by a support bar 55. On this support bar 55, a plurality of paper pressing rollers 56 as paper pressing members and a plurality of brush rollers 57 formed in the shape of a rotating brush (in this embodiment, four paper pressing rollers 56 and brushes are provided). Four rollers 57 are supported via a bracket 58 and a leaf spring 59, and the paper pressing roller 56 and the brush roller 57 are a paper feeding tape 35 (not shown in FIG. 1) that runs directly below the paper pressing roller 56 and the brush roller 57. Are pressed against each other by the elastic force of the leaf spring 59.

On the other hand, a pair of front and rear support fittings 89, 90 are fixed to the one side of the connecting bar 40 at a position closer to the rear end portion than the center of the connecting bar 40 and fixed by splitting. A gear box 60 formed in a rectangular tube shape is bolted to the metal fittings 89, 90. A motor 62 with a brake 61 is mounted on a side surface of the gearbox 60 with an output shaft 63 protruding into the gearbox 60. A gear connected to the output shaft 63 by a coupling 64 in the gearbox 60. A gear 66 is attached to the outside of the gearbox 60 of the shaft 65. 67 is a side plate that is bolted to the side surface of the gear box 60 and supports the protruding end of the gear shaft 65.

A transmission shaft 68 is provided below the gear shaft 65 so as to be axially supported by a shaft hole of the gear box 60 and a shaft hole of the side plate 67. A large gear 69 that meshes with 6 is mounted on the shaft. Further, a bevel gear 70 is rotatably attached to a projection of the transmission shaft 68 in the gearbox 60, and a bevel gear 71 is attached to a sprocket shaft 71 which is orthogonal to the transmission shaft 68 and is axially supported by a shaft hole of the gearbox 60. A bevel gear 72 that meshes with the shaft 70 is mounted on the shaft. Reference numeral 73 is a potentiometer whose shaft is supported by a plate 74 which is fixed to the outside of the side plate 67 by a bolt. The potentiometer is connected to the transmission shaft 68 by a coupling 75 and detects the rotation amount of the transmission shaft 68. Then, it is configured to emit a signal. A sprocket 76 is pivotally attached to the protruding portion of the sprocket shaft 71 from the gear box 60.

A U-shaped portion is provided on the left and right moving bearings 54 that axially support both ends of the connecting bar 55, and is located diagonally above the connecting bar 55. Sprockets 78 are provided in the U-shaped portion at both ends of the operation shaft 77 supported by the hole. A sprocket 79 is mounted on the end of the operating shaft 77 on the driving side adjacent to the moving bearing 54. Further, a shaft 40a, which is located above the bar 39, is provided in a bearing 40a that axially supports one end of the bar 39, and a short shaft 79a is supported by the shaft hole. The sprocket 80 is attached to the short shaft 79a. It is pivoted.

On the other hand, a chamfered portion 40b is formed at the upper end of the coupling bar 40 on the driving side over substantially the entire length thereof, and chain hooks 81, 82 are provided at both ends of the chamfered portion 40b. It is fixed. A chain 83 is supported by the chamfered portion 40b and stretched in a tensioned state between the chain hooking metal fittings 81 and 82 at both ends, and the sprocket 78 is meshed with the chain 83. .. An endless chain 84 is stretched around the front and rear sprockets 80 and 76, and the chain 84 is stretched by pushing down the sprocket 79 at the center thereof.

By doing so, when the motor 62 rotates and this rotation is transmitted to the sprocket shaft 71 through the gears 66, 69, 70, 72, the chain 84 runs and the sprocket 79 rotates, so that the sprocket 79 rotates. The sprocket 78 coaxial with 79 rotates on the chain 83 while rotating, and is converted into forward / backward movement as a whole to a moving support frame indicated by reference numeral 85, which is transmitted. It is configured to move back and forth to accommodate paper sizes.

Further, a handle 86, which is enlarged and shown in FIGS. 8 and 9, is attached to the operation-side end of the operation shaft 77 so as to be movable back and forth in the axial direction of the operation shaft 77. That is, the hole provided in the handle 86 is fitted to the operation shaft 77 so as to be capable of advancing and retracting and rotating, and penetrates the hole provided in the handle 86 to become the end screw hole of the operation shaft 77. A screw member 91 screwed with the screw portion 91a regulates the backward limit of the handle 86 by its head. A compression coil spring 92 is provided in a space formed by the end surface of the operation shaft 77 and a hole provided in the handle 86 so as to urge the handle 86 in the backward direction.

Interlocking teeth 87 are provided on the operating shaft 77 so as to radially protrude in the radial direction of the operating shaft 77, and a handle 86 is provided with a groove 86 a at a position corresponding to the engaging teeth 87. There is. A limit switch 88 connected to the brake 61 of the motor 62 via a controller (not shown) is provided near the handle 86. By doing so, during automatic adjustment of the movable support frame 85 in which the handle 86 is released, the engagement between the meshing tooth 87 and the groove 86a is released by the compression coil spring 92, and the contact point of the limit switch 88 is opened. The brake 61 is configured to be operable.

Further, during manual operation, when the handle 86 is pushed against the elastic force of the compression coil spring 92 along the guide portion 91b of the screw member 91, the meshing teeth 87 and the groove 86a are engaged with each other and the handle 86 is engaged. The operation shaft 77 can be rotated by operation, that is, the fine adjustment of the movable support frame 85 can be performed. Due to the action of the tapered portion 86b of the handle 86, the limit switch 88 is pushed to close its contact and the brake 61 is disconnected. Is configured.

The operation of the sheet feeding / conveying apparatus configured as described above will be described. When the printing operation is started, the paper 4 stacked on the paper stack plate 5 is sucked one by one by the suction port of the sucker device, and the paper feed roller 20 and the paper feed roller 21 are moved by advancing the suction port and releasing the suction. And are captured by. The captured paper 4 is sent out onto the feeder board 31 by rotation of the paper feed roller 20 and the paper feed roller 21.

At this time, since the fixed support frame 37 is closed together with the movable support frame 77, the paper 4 delivered onto the feeder board 31 travels with the traveling paper feed tape 35 and the plates 45, 59. The paper feed rollers 43 and 56 are pressed against the paper feed tape 35 by the elastic force of the paper feed roller and are conveyed. The leading edge of the conveyed paper 4 comes into contact with a paper pad (not shown) so that the printing register is aligned and stopped. At this time, however, the brush roller 57 whose position has been adjusted beforehand corresponds to the paper tail. Since the paper 4 is pressed against the paper 4 by the elastic force of the spring 59, the paper 4 is not returned by the reaction force of the paper contact. In this way, the paper 4 stopped on the slip plate is supplied to the printing unit 2 by the above-described operation to be printed, and then discharged and stacked.

When a paper feed failure occurs during such a printing operation and the paper 4 is jammed on the feeder board 31, the swing cylinder 47 operates and the piston rod 48 retracts, and the lever 49 moves. By the engagement of the long hole and the pin 50, the fixed support frame 37 swings together with the movable support frame 85 around the bearing 36 to the position shown by the chain line 37A, so that the jammed paper 4 is fixed to the fixed support frame 37 and the feeder. It can be taken out from between the board 31. In this case, since there is no cylinder or the like between the fixed support frame 37 and the feeder board 31 and this area is completely open, the jammed paper 4 can be easily taken out.

When the fixed support frame 37 is manually opened, when the fixed support frame 37 is pushed up, the fixed support frame 37 opens with the pin 50, and the pin 50 causes the hook 52 to move in the clockwise direction in FIG. Rotate. When the fixed support frame 37 is further pushed up, the pin 50 engages with the groove 52a of the hook 52 and is locked by the hook 52 in an open state. In order to further open the fixed support frame 37 from this open state, the hook 52 is rotated clockwise in FIG. 2 to disengage the pin 50 from the hook 52, and then the fixed support frame 37 is opened. By pushing up and engaging the pin 50 with the groove 52b, the fixed support frame is locked in a state of being further opened.

When the paper size is changed, when the paper size is input to the control device, the motor 62 rotates in the forward direction or the reverse direction and the transmission device including the gears 66, 69, 70, 72 and the like causes the motor 62 to rotate. The rotation of 62 is transmitted to the sprocket shaft 71 and the chain 84 runs. As a result, since the sprocket 79 rotates, the sprocket 78 coaxial with the sprocket 79 rolls on the chain 83 while rotating, and the moving support frame 85 is adjusted back and forth in the vertical direction of the paper 4 to become a paper size. Correspond. In this case, since the potentiometer 73 detects the amount of rotation of the transmission shaft 68, that is, the amount of movement of the movable support frame 85, when the movable support frame 85 moves to the position corresponding to the input paper size, the motor 84 stops. At the same time, the brake 61 is actuated and the moving support frame 85 is braked at the stop position.

When it is desired to manually move the movable support frame 85, for example, when finely adjusting the position of the movable support frame 85, the handle 86 is pushed against the elastic force of the compression coil spring 92 to cause the meshing teeth. 87 and the groove 86a are engaged with each other to integrate the handle 86 and the operating shaft 77, and the contact point of the limit switch 88 is pushed by the tapered portion 86b to disconnect the brake 61 of the motor 62. When the 86 is rotated, the movable support frame 85 moves and its position is adjusted. When the handle 86 is released after the adjustment, the handle 86 retracts due to the elastic force of the compression coil spring 92, the brake 61 becomes operable, and the engagement between the meshing tooth 87 and the groove 86a is released. After that, when the operation shaft 77 rotates with the handle 86 during the automatic adjustment of the moving support frame 85, even if the operation shaft 77 continues to rotate with a finger or the like accidentally entering the handle 86. Since the rotation of the handle 86 is stopped, it is safe.

In the present embodiment, an example in which the present invention is applied to a device in which the motor 62 as a drive device for moving the moving support frame 85 is provided on the fixed support frame 37 side is shown. The present invention can be applied to an apparatus provided on the side of the movable support frame 85, and the same effect can be obtained. A drive device such as the motor 62 may be provided on the machine frame 34 side. Further, in this embodiment, a motor or the like is illustrated as the driving device, but an air cylinder, a screw mechanism or the like may be used. Further, instead of the potentiometer 73, a rotary encoder or a device that directly detects the moving amount of the moving support frame 85 may be used. Further, the motor 62 and the brake 61 may be separately provided. Although the present embodiment shows an example in which the present invention is applied to a sheet-fed printing machine, it can also be applied to a punching machine, and the same effect can be obtained.

[0037]

[Effect of the device]

 As is clear from the above description, according to the present invention, in the sheet conveying apparatus, the fixed support frame supporting the paper pressing member is supported on the machine frame side, and the paper pressing member is attached to the fixed supporting frame. The movable support frame to be supported is movably supported in the up-and-down direction of the transport paper, and the drive device that moves the movable support frame, the braking device that brakes the movement of the movable support frame, and the movable support frame are manually moved. By providing a manual operation device and a brake release device that operates in conjunction with the manual operation of the manual operation device to release the braking of the moving support frame by the braking device, the moving support frame is moved when the paper size is changed. When performing dynamic adjustment, it may be necessary to make fine adjustments depending on the paper thickness and paper quality after moving the moving support frame with the drive device.For this reason, if the manual operation device is operated manually, The braking of the moving support frame is released in conjunction with the operation of, and the position of the moving support frame can be finely adjusted while looking at the paper pressing member.Therefore, adjust the position of the paper pressing member supported by the moving support frame. It can be done accurately and quickly, improving the stability of paper feeding, shortening the preparation time, and improving the operating rate of the machine. If no manual operation is performed, if a finger or the like accidentally enters the operating member, only rotation of the operating member will stop, improving safety.

[Brief description of drawings]

1 is a plan view of a sheet conveying device. FIG.

FIG. 2 is a side view of the sheet conveying device.

FIG. 3 is a front view of the sheet conveying device.

FIG. 4 is a front view of an advance / retreat drive device for a movable support frame.

5 is a sectional view taken along line VV of FIG.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a front view taken along line VIII of FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a schematic front view of a two-color printing sheet-fed printing press embodying the present invention.

[Explanation of symbols]

 4 Paper 30 Sheet-fed Feeding / Conveying Device 31 Feeder Board 34 Frame 36 Bearing 37 Fixed Support Frame 43 Paper Pressing Roller 55 Support Bar 56 Paper Pressing Roller 57 Brush Roller 61 Brake 62 Motor 77 Operating Shaft 85 Moving Supporting Frame 86 Operating Handle 86a Groove 87 meshing teeth 88 limit switch

Claims (1)

[Scope of utility model registration request] 1. A fixed support frame which supports a paper pressing member and is supported on the machine frame side, and a movable support frame which is movably supported by the fixed supporting frame in the vertical direction of the conveyed paper and supports the paper pressing member. , A drive device for moving the moving support frame, a braking device for braking the movement of the moving support frame, a manual operation device for manually moving the moving support frame, and a manual operation of the manual operation device. A sheet release device, comprising: a brake releasing device for releasing the braking of the moving support frame by the braking device.