JPH01321222A - Feed paper stacker for sheet-fed press - Google Patents

Abstract

PURPOSE:To make improvements in paper operability by installing a lifting storage position and a fork support member guide rail movable to a down operating position between a paper stacking table and a spare paper stacker, moving a fork to the paper stacking table and inserting this fork into a groove of a paper stacking plate, then supporting a sheet of paper. CONSTITUTION:A guide rail 25 goes up and down between a lifting storage position and a down operating position along a lifting guide 24 and a column 16. When paper 11B runs short and an unillustrated limit switch operates, the guide rail 25 goes down to a full-line position as illustrated. Next, a fork 51 is advanced toward a paper stacking table 9, and the fork 51 is inserted into an unillustrated groove of a paper stacking plate 10, supporting the paper 11B, thus paper feeding is continued. Then, the paper stacking table is lowered, spare paper 11 is fed at each paper stacking plate 10A, restoring the paper stacking table 9 to its original position, and paper support is handed over from the fork 51, retreating the fork 51. Next, the guide rail 25 is lifted up and housed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a paper feeding device for a sheet-fed printing press in which when the paper stacked on the paper stacking board-F runs out due to paper feeding, This paper relates to a paper feed stacking device that supplies the next paper without stopping the machine.

[Conventional technology]

In printing operations using a sheet-fed printing press, the paper stacked on the paper stack on the paper stacking table of the paper feeder is sucked up one by one by the suction device, starting from the upper layer, and is supplied to the printing unit where printing is performed. be done. In this case, the paper stacking table is automatically raised as the paper weight decreases due to paper feeding, and the upper end surface of the stacked papers is maintained at a constant height. When the paper on the paper stack runs out due to paper feeding, the machine is stopped, the paper stack is lowered to its lower limit, and the empty paper stack is replaced with a paper stack that has been loaded with paper in advance. , the paper stacking table is raised to a predetermined position, the paper stacking table is switched to automatic raising, and paper feeding is resumed.

However, in such conventional paper feeding and stacking devices, productivity decreases because the machine is stopped and reloading is performed, and the amount of waste paper generated increases when printing resumes, so it is difficult to stop the machine. Paper feeding and stacking devices that allow paper to be transferred without stopping have been proposed and put into practice.

[Problem to be solved by the invention]

However, conventional paper feeding and stacking devices of this type require a skilled technique and are not necessarily satisfactory in terms of operability. In addition, the work must be done in a short period of time, and if you are not used to it, paper feeding failures will often occur and the machine will stop.

[Means to solve the problem]

In order to solve these problems, the present invention has developed a system in which a paper stacking platform that automatically raises a paper stacking board loaded with paper and a preliminary paper stacking device that loads the next paper during paper feeding. A pair of left and right guide rails are horizontally extended in the front and back direction, and a support member that is driven forward and backward in the front and back direction is installed between these left and right guide rails, and the paper is supported by this support member and moves back and forth. A plurality of forks are provided to be inserted into and removed from grooves provided in the paper stack at the raised position of the paper stack, and the guide rail is supported so as to be movable up and down between the lowering operation position and the raised storage position.

[For production]

Paper stacked on the paper stacking board via the paper stacking board is sucked by a suction device and supplied to the printing unit, and the paper stacking board is automatically raised as the paper is fed. During this printing operation, the next paper is stacked on the paper stacking board of the preliminary paper stacking device. When the number of paper being fed runs low and the paper stacking table reaches a predetermined position, the support member moves forward and the fork is inserted into the groove of the paper stacking table. As the paper continues to be fed, the released paper stacking table descends.

Then, remove the empty paper stack, load the next paper onto the paper stack, and then feed it onto the paper stack.The paper stack rises and the upper end of the paper approaches the paper held by the fork. At this point, the paper stacking platform will temporarily stop rising.

After adjusting the positions of the upper and lower papers, the paper stacking table rises slightly and the LF paper comes into contact with it, so the fork is pulled out and normal paper feeding begins. When working by entering between the paper stacking table and the spare paper stacking device for maintenance or inspection of the sucker device, etc., the guide rail can be raised to the storage position so that it does not get in the way.

〔Example〕

1 to 8 show an embodiment of the paper feed stacking device according to the present invention, FIG. 1 is a schematic side view of the entire device, FIG. 2 is a plan view of a fork, its support portion, and a drive device, Figure 3 is a plan view of the lifting drive device, Figure 4 is a side view,
FIG. 5 is a front view of the fork advance/retreat drive device, FIG. 6 is a side view thereof, FIG. 7 is a side view of the paper stack, and FIG. 8 is a sectional view of the paper presser. In the figure, a pair of left and right frames l formed in an inverted shape are erected on the floor foundation, located behind a printing unit (not shown), and the rear end of the horizontal member is connected to the support column 2. is supported on the floor. A drive shaft 3 and a driven shaft 4 are rotatably supported between the left and right frames 1, and four sprockets 5 and two sprockets 6 are respectively mounted on these two wheels 3.4. It is worn.

A paper stacking table 9 formed in the shape of a rectangular plate is suspended from a lifting chain 7°8 stretched between sprockets 5 and 6.
A paper stacking board 10 is mounted on this paper stacking table 9. The paper stack board 10 is formed into a rectangular plate shape, and on its upper surface, a plurality of grooves 10a extending in the front-rear direction are arranged in parallel in the left-right direction. has been done. The drive shaft 3 is connected to a drive device (not shown) and is driven to rotate in forward and reverse directions, and the paper stacking table 9 is configured to be raised and lowered via a lifting chain 7.8 by the forward and reverse rotation. . Then, the paper 1j is suctioned one by one from the upper layer by a sucker device (not shown) and supplied to the printing unit, and the paper 1j is fed to the fj & i of the paper 11 by paper feeding.
The paper stacking table 9 is configured to automatically rise in accordance with the above. This lifting drive device can be switched to manual mode.
The paper stacking table 9 can also be raised and lowered by pressing a push button or the like.

From below the paper stacking table 9, two rails 12 are laid forward on the floor surface, and above the rear end of these rails 12 is a preliminary paper stacking device, generally designated by the reference numeral 13. It is provided. This preliminary paper stacking device 13 is equipped with a trolley 14 that can be driven by hand on the rails 12, and on this trolley 14, a paper stack lOA same as the paper stack 10 is mounted.
is loaded, and the next paper 11A is loaded on the paper stacking board 10A during printing work. 15 is the trolley 14 when loading paper
This is a lock handle that fixes the rail 12 to the rail 12. A pair of left and right brackets 18 are slidably fitted onto a guide shaft 17 that connects the upper ends of the left and right columns 16 erected on the floor.
A front piece 19 that brings the front ends of the
0 in a slidable manner. The front cover 19 is adjusted by moving in the left-right direction according to the paper size. Furthermore, a pair of upper and lower brackets 21 are fixed to the left and right columns 16, and a pair of left and right horizontal levers 22, which abut and align the side edges of the gills 11A, are supported so as to be movable in the left-right direction. The movement is configured to be adjusted accordingly.

A fork for temporarily receiving a small amount of paper, a supporting device for the fork, and a driving device for the fork are provided between the spare paper #ll direct placement 3 and the paper stacking table 9 configured in this way. That is,
A pair of left and right lifting guides 24 are fixed to the rear end of the horizontal member of the frame 1, and the lifting guides 24 are provided with a guide groove 24a. Guide groove 16 corresponding to groove 24a
A is provided. Reference numeral 25 denotes a pair of left and right guide rails formed in a long plate shape extending in the front-rear direction, and a rank 26 formed in a square cross section is integrally fixed with a bolt to the inside of the guide rail. 25, a roller 27 pivotally mounted at one end and a guide portion 25a at the other end are slidably fitted into the guide grooves 24a, 16a, thereby moving the lowering working position shown by the solid line in FIG. 1 and the lowering working position shown by the chain line. It is supported so that it can be raised and lowered between the raised and retreated positions. A motor 28 having a horizontal motor shaft is fixed to a motor stand 28a fixed to the upper end of one of the lifting guides 24, and a sprocket 29 attached to the motor shaft and a left and right lifting guide A chain 32 is stretched between a sprocket 31 on a sprocket shaft 30 which is movably mounted between the sprocket shafts 24 and 24. Furthermore, a chain 34 with a weight hanging from one end is stretched around the sprocket 33 which is pivotally attached to the sprocket shaft 30, and a sprocket 35 on the sprocket shaft 30 and the rear ends of the left and right horizontal stays 36 are connected to each other. A chain 39 with a weight hanging from the negative end is stretched between a sprocket 38 loosely mounted on a round stay 37 that connects the parts. The lower ends of the chains 34 and 39 are respectively fixed to the front and rear ends of the left and right racks 26, and by rotating the motor 28 in the forward and reverse directions, the racks 26 are raised and lowered together with the guide rails. It is configured as follows. In addition, a limit switch (not shown) is provided near the sprocket 33, which closes the contact with a striker provided on the chain 34 side, so as to regulate the upper end limit and the lower end limit of the guide rail 25 as set. It is composed of

Reference numeral 40 denotes side plates 41 on both sides, a corner stay 42 with a rectangular cross section and a pipe stay 4 connecting these side plates and extending in the left-right direction.
A fork support stand as a support member integrally formed with the rack 26 and the guide rail 25 integral with the rack 26 supports the rollers 44 pivotally attached to the side plates 41 on both sides. It is formed to be movable in the front and rear direction while rolling the rollers 44 along. A motor 45 is mounted on the fork support base 40, and a pinion shaft 46 is rotatably supported between the left and right side plates 41. A chain 49 is stretched between a sprocket 47 that is attached to the motor shaft of the motor 45 and a sprocket 48 on the pinion shaft 46, and a pinion 50 that is attached to the pinion shaft 46 is attached to a rack. It meshes with 26. By doing this, the motor 45
When the motor shaft rotates, the pinion 50 rotates via the chain 49, and the fork support base 40 moves forward and backward while rolling the pinion 50 on the rack 26 that meshes with the pinion 50.

On the pipe stay 43 of such a fork support stand 40, a plurality of forks 51 formed in a rod shape and extending horizontally in the front-rear direction are protruded at the same pitch as the full 10a of the paper stack 10, The tip of the left and right guide rails 2
It is slidably supported by a holder 53 shown in FIG. 8 which is fixed to a corner stay 52 having a rectangular cross section and connecting the front ends of the two. With this configuration, when the fork support base 40 moves forward and the fork 5I moves forward when the guide rail 25 is in the lowered state, it is inserted into the groove 10a of the paper stack 10 at the upper W position, and the number of paper stacks decreases. Paper 11B is supported.

In FIG. 1, a drive shaft 54 and a driven shaft 55 are rotatably supported between the left and right frames 1, and these shafts 54 and 55 have four sprockets 56 and two sprockets. 57 are each pivoted. A lift bar 59 is suspended from a lift chain 58 stretched between the sprockets 5G and 57, and by rotationally driving the drive shaft 54 by a drive device (not shown), the lift bar 59 rises to the illustrated position. , the fork 51 inserted into the groove 10a is supported by this lifting bar 59.

Furthermore, a pair of left and right air cylinders 61 extending in the front-rear direction are fixed to the corner stay 52, and the working end of the piston cylinder 2 is formed with a triangular cross section as shown in FIG. A paper presser 63 extending in the left-right direction is fixed via a fixture 64. The fork 51
is slidably passed through the hole of this paper presser 63. With this configuration, when the fork 51 inserted into the groove 10a is removed, the paper presser 63 is moved forward by the operation of the air cylinder 61 and the rear edge of the paper 11B is pushed. It never shifts.

In this device, since the motor 45 moves vertically and in the front-rear direction, the electrical wiring for the motor 45 is supported by a chain having 1iTfQ characteristics indicated by reference numerals 65 and 66 in the figure. Furthermore, limit switches 6B and 69.70 are fixed to the guide rail 25 on one side, and limit the movement of the fork 51 at three points by closing the contact point when the striker 67 on the fork support stand 40 comes into contact with it. There is.

The operation of the sheet feeding and stacking device configured as above will be explained. Paper 11 stacked on paper stacking table 9 via paper stacking board 10
are suctioned one by one from the upper layer by a suction device and supplied to the printing unit. Since the drive shaft 3 is rotationally driven by the drive device in accordance with paper feeding, the paper stacking table 9 is raised one step via the elevating chain 7.8, and the upper end surface of the sill 11 is always maintained at a predetermined height. While printing is being performed while feeding paper in this manner, paper 11A is placed on the paper stacking board 10A placed on the trolley 14 of the preliminary paper stacking device.
2. Load the paper while aligning the edges. Normally, the guide rail 25 is stored in the upper part, and when a detector (not shown) fixed to the frame 2 detects that the paper stacking table 9 has risen, the guide rail 25 is placed below near the position where the fork 51 is inserted. It's coming down.

The paper stacking table 9 rises by one level as the paper is fed, and when it rises to the position shown by the chain line in FIG.
6 rotates, and the pinion 50 that meshes with the rack 26 rotates, so the fork support base 40 moves forward while the pinion 50 is rolling on the rack 26, and the fork 51 also moves forward below the reduced number of gills 11B. It is inserted into the groove 10a of the paper stack 10. The forward limit of the fork 51 is set by the limit switch 7.
Regulated by 0. At the same time as inserting fork 5I,
The drive shaft 54 is rotated by the drive device, and the lowered lifting bar 59 is raised -F to the position shown in FIG.
Lightly touch 1. Now, the paper 11B and the fork 51 are supported and the paper stacking board 9 is separated, so when the drive shaft 3 rotates, the paper stacking board 9 loads the empty paper stacking board IO as shown by the solid line in FIG. Descend to the lowering limit position.

After removing the empty paper stack 10, the front support 19 and the side support 22 are opened to move the trolley 14 forward on the rail 12, and after supplying the paper 11A, the trolley 14 is pulled out and moved to the paper stacking position. make them leave. Note that the paper stacking table 9 is formed of a pair of bars and has a structure that allows the trolley 14 to be taken in and taken out at its lowering limit position, but a detailed explanation will be omitted.

At the same time as the paper 11A is supplied, the drive shaft 3 rotates and the paper stacking table 9 carrying the paper 11A moves upwards, and a detector (not shown) installed at a lower position where the upper end surface of the paper 11A is close to the fork 51 detects When detected, the process is temporarily stopped, and an adjustment device (not shown) is operated to align the left and right positions of the upper paper 11B and the lower paper 11A. When the command to complete the work is given, the drive shaft 3 rotates slightly and the paper stacking table 9 is moved upward, and the upper and lower blocks 11B and I
When fA comes into contact, a load detector (not shown) provided on the lift bar 59 detects this, and at this time, the piston rod 62 of the air cylinder 61 moves forward, and the paper presser 63 fixed to it moves forward, causing the upper and lower Press the edge of the contact portion of paper 11B and IIA. In this state, the motor 45 rotates in the opposite direction and the fork support base 40 retreats, so that the fork 51 also retreats and comes out from between the upper and lower sheets of paper JIB and 11Δ. When the fork 51 is removed, the vehicle type of the paper 11B is placed on the fork 51, so the papers 11B and IIA try to shift in the direction in which the fork 51 is removed, but because they are held down by the paper presser 63, they do not shift. After the fork 51 is removed, the piston rod 62 of the air cylinder 61 retreats and the paper presser 63 retreats. After the paper presser 63 is removed, the motor 28 is started, and the guide rail 25, together with the fork 51 and the fork support 40, is raised to the position shown by the chain line in FIG. .

When working between the paper stacking table 9 and the preliminary paper stacking device I3 for maintenance or inspection of the sucker device, etc., the guide rail 25 is attached to the fork 51 and the fork support base 40 (first Since the machine is once raised to the overhead position shown by the chain line in Figure 1 and is in the retracted state, work can be easily carried out by being located below it.

〔Effect of the invention〕

As is clear from the following explanation, according to the present invention, in a paper feed stacking device of a sheet-fed printing press, a paper stacking table of the paper feeding device;
A pair of left and right guide rails extending in the front-rear direction is installed between the preliminary paper stacking device and a support member that is driven forward and backward in the front-rear direction is supported between these guide rails, and is fixed to this support member and moves forward and backward. A plurality of forks are provided which are inserted into and removed from the grooves provided in the paper stack when the paper stack is in the raised position, and the guide rail is supported so as to be movable up and down between the lowering operation position and the raised storage position. This makes it possible to feed paper continuously without stopping the machine with a simple operation, improving operability and eliminating the occurrence of m-sheets due to machine stops, as well as paper feeding failures that may occur even if you are not familiar with the machine. productivity is improved. Also, structurally,
Since it is easy to automate a series of operations, automating this will further improve operability and productivity without requiring skilled technology. Furthermore, when the paper feed stacking device is not operating, the fork, its support member, and guide rail!
Since it is raised and stored in the fi and h positions, it does not get in the way even if you enter between the paper stacking table and the spare paper stacking device for maintenance or inspection of the sucker device, etc., improving work efficiency and safety. - Hit.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 to 8 show an embodiment of a paper feed stacking device for a sheet-fed printing press according to the present invention, FIG. 1 is an overall schematic side view thereof, and FIG. FIG. 3 is a plan view of the elevating drive device, FIG. 4 is a side view of the elevating drive device, and FIG. 5 is a front view of the fork advancement/retraction drive device. , FIG. 6 is a side view, FIG. 7 is a side view of the paper stack, and FIG. 8 is a sectional view of the paper presser. 9...Paper stacking stand, 10...Paper stacking board, 10a...
・Groove, 11. IIA, IIB...Paper, 13...
Spare paper stacking device, 16... Support, 24... W lowering guide, 25... Guide rail, 26... Rack, 28... Motor, 32.34.39 ・ ・・
・Chain, 40... Fork support stand, 44...
・Roller, 45... Motor, 49... Chain, 50... Pinion, 51... Fork, 5
4... Drive shaft, 58... Chain, 59...
・Lifting bar. Patent applicant: Komori Printing Machinery Co., Ltd. Agent
Masaki Yamakawa (2 people) Figure 7 Figure 8

Claims (1)

[Claims] In a sheet feeding paper stacking device for a sheet-fed printing press, which is equipped with a paper stacking table that automatically raises a paper stacking board loaded with paper, and a preliminary paper stacking device that stacks the next paper during paper feeding, A pair of left and right guide rails extending horizontally in the front-rear direction is installed between the paper stacking table and the preliminary paper stacking device, and a support member that is driven forward and backward in the front-rear direction is supported between these left and right guide rails. A plurality of forks are provided that are fixed to a support member and are inserted into and removed from grooves provided in the paper stack by advancing and retreating at the raised position of the paper stack, and the guide rail is moved between a lowering operation position and a raised storage position. A paper feed stacking device for a sheet-fed printing press, characterized in that it is supported so as to be movable up and down between.