JPS63101273A - Blanking plate inserter for sheet-fed press - Google Patents

Abstract

PURPOSE:To reduce an inserting stroke as well as to aim at improvements in safety and durability, by installing a detector, which detects passage of a blanking plate on a plate receiving guide and once stops the plate, and also a detector which detects blanking preparation fulfillment and readvance the plate. CONSTITUTION:When a front end of the extruded blanking plate 8 passes through the central part of a paper receiving guide 29 and reaches the position of a detector 70, this detector detects the presence of the blanking plate 8, emitting a signal and stopping a motor 38, so that the blanking plate 8 during forward movement comes to a stop at the halfway position. Afterward, paper discharging goes in succession and sheets of loaded paper on the last blanking plate 8 are reached to the specified quantity and that a blanking guide 18 on the plate goes down up to the same height as the guide 29, the detector detects it, emitting a signal, and the motor 38 is restarted, so that a chain 47 gets running whereby the blanking plate 8 during stoppage at the halfway position is inserted into the blanking guide 18. And, sheets of the paper 7 dropped in succession are loaded on the inserted blanking plate 8.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is attached to a paper discharge device of a sheet-fed printing machine, and stops the machine every time a predetermined number of sheets of paper are stacked on a paper stacking table. This invention relates to a board inserting device for inserting a board into a falling path of paper during a board work to take out the paper without causing any damage.

[Conventional technology]

In the case of sheets printed by a sheet-fed printing press, after printing, the paper stacked on the paper stacking table of the paper ejection device is removed without stopping the machine), or the paper is loaded in a predetermined amount to prevent set-off, etc. Each time the machine is removed, the board removal work is performed without stopping the machine.

Fig. 5 is a front view of a paper discharge device of a printing press equipped with a board removal device for performing this type of board removal work. A plurality of claw rods 3 are arranged at predetermined intervals on the traveling paper discharge chain 2, and a plurality of claws 4 are arranged in parallel on each claw rod 3. Below the running end of the paper delivery chain 20, a paper stacking table 5 is provided so as to be able to rise and fall freely, and above it is a pair of board trays that are moved horizontally by a drive device as shown by solid lines and chain lines in the figure. A plate guide 6 is installed.

Due to this configuration, the paper ejection chain 2
The paper 7 that was conveyed while being held in the claw 4 during the zero run was
The paper is released from the grip and falls onto the paper stacking platform 5, and the paper stacking platform 5 automatically descends as the paper 7 is loaded. When a predetermined number of abrasives 7 have been loaded, the paper stacking table 5 is lowered slightly, and the board guide 6, which was at the position indicated by the chain line during printing, is moved to the position shown by the solid line, and a separately prepared board 8 is moved to the board. When the paper 7 is inserted along the groove of the pick-up guide 6, the falling paper 7 will be stacked on the pick-up board 8, so place the horizontal bar 9 on top of the pick-up board 8 that has been lowered and loaded with paper, and move the paper stacking board 8. 5 is raised until the crossbar 9 comes into contact with the board 8 which is being temporarily held, and then the board guide 6 is opened to the chain line position and printing work is resumed.

By performing such a board cutting operation, no great pressure is applied to the underlying paper, thereby preventing set-off.

[Problem that the invention seeks to solve]

However, in such a conventional board-cutting device, the board-cutting board 8 must be quickly inserted between the sheets of paper 7 that are being ejected and falling one after another at a high speed, which requires a long line of work. In particular, as printing presses become faster, it is possible to pull the paper 7 with the inserted board υ board 8 instead of using the board 8 to insert the board 8, instead of using the board 8 to insert the board 8, instead of using the board 8 to insert the board 8, rather than doing it frequently. Since it is possible to get stuck on the paper and cause damage, the current situation is that the operating speed of the machine is unavoidably reduced only when doing the stripping process, or the printing speed is lowered from the beginning when printing with the stripping process. speedup was hindered.

[Means for solving problems]

In order to solve problem A, in the present invention, a guide is installed on a plate holder that is substantially continuous with a pair of cut-out plate layer guide rails provided in a paper discharge device, and this plate holder is mounted on the guide. A push-out device is provided to push out the Itadori board onto the guide rail, and the Ita holder is equipped with a detector that detects the passage of the Itadori board moving on the guide and temporarily stops the Itadori board, and a detector for temporarily stopping the Itadori board. A detector is installed to detect the completion of the work and to move the stopped board forward again.

[Effect]

When the extrusion device is activated prior to the stripping operation to advance the stripping board, a detector detects the passing of the stripping board during movement, and the stripping board is stopped via the extrusion device. When the preparation for cutting is completed, another detector detects this and advances the cutting board again through the extrusion device, and the cutting board is pushed out into the guide rail. Therefore, the insertion distance of the plate for the meiyoyo is shortened, and the insertion speed may be slow.

〔Example〕

This embodiment shows an example in which the present invention is implemented in an endless chain running type plated system configuration, and FIG. 1 is a side view thereof, and FIG.
The front view as viewed from A in the figure, and FIG. 3 is a plan view. 2, between the sprocket 11 supported by the side frames 1 on both sides as in FIG. 4 and the sprocket on the print unit side (not shown), there is a A pair of paper ejection chains 2 are stretched,
A plurality of sets of claws 4 are arranged in parallel on each claw rod 3 supported at a constant interval between the left and right paper discharge chains 2. Then, the paper 7, which has been transferred to the grip of the claw 4 of the printing machine and conveyed by the running of the paper discharge chain 2, is released from the grip of the claw 4 at the end of the conveyance shown in FIG. The paper is stacked on the board 8 on the paper stacking table 5. The board cutting device of this embodiment is an endless chain type board cutting device different from the one shown in FIG. 4, and will be described below. Note that the illustration of the board removal device is omitted in FIGS. 1 and 3.

In the figure, a pair of left and right beams 12 protrude horizontally from the upper ends of the vertical members of the left and right side frames 1.
, each frame 12 is supported on the floor surface and the horizontal member of the side frame 1 by struts 13, 14 fixed to its tip and base. A board chain 15 is stretched between the upper and lower sprockets 18,17 on each of the four pillars 13.14, and each board chain 15 has a plurality of board guides 18 at regular intervals. and each chain 1
5 in the same phase. Then, the board cutting chain 15 is driven by a drive device (not shown) for each board cutting operation and travels in the direction of arrow C by one pitch of the board cutting guide 18, and the board cutting guide 18 is driven by a drive device (not shown) for each board cutting operation. The plate holder of the insertion device is configured so that the plate 8 is inserted into the plate guide 18 in correspondence with a guide (described later).

The board inserting device, generally designated by the reference numeral 20, is shown in FIG.
2, a pair of left and right horizontal members 23 fixed to the upper and lower stays 2 in an L-shape/A21, extending rearward and connected by a stay 22;
The frame 27 is made up of four pillars 25 and 26 connected by 4. At the horizontal end of the inverted-shaped bracket 28 fixed to the left and right horizontal members 230 in two places, front and rear, there is a cross-section. A guide 29 is supported by a pair of left and right fixed side plate supports that extend concentrically so as to be substantially continuous with the board guide 18 which is formed in an L-shape and stops at the board position. Reference numeral 30 denotes a support shaft which is rotatably supported by a pair of bearings 31 fixed to the rear end of the horizontal member 23 and whose movement in the axial direction is restricted. The folding-side temporary support, which is continuous with the guide 29 and extends rearward concentrically with the guide 29, has a rectangular cross section, and the front end of the guide 32 is supported, and the paper support is supported by the rear end of the guide 32. It is connected by a square bracket 33 and a stay 34. The guide 32 and the like of the plate holder formed in this manner are folded from the solid line position to the chain line position in FIG. 1.The structure of the folding device will be described later, and the other members will be described first.

When the guide 32 is in a horizontal position, a plurality of itadori plates 8 are stacked on top of each other, and the paper tray has a front end of the guide 32 that guides the stacked itadori plates 8. A guide plate 35 for aligning the paper receivers is fixed with a support fitting 36 perpendicular to the guide 32. On the other hand, a motor 38 is mounted on the tape plate 37 supported at the center of #) 12.
A sprocket 39 is fixed to the motor shaft, and a sprocket shaft 41 is rotatably supported by a bearing 40 fixed to the motor shaft 12 and parallel to the motor shaft.
There is a chain 743 between the upper sprocket 42.
is being strung up. Further, in the paper receiver, a pair of left and right arms 44 are fixed to the inside of the bracket 33 at the rear end of the guide 32 and protrude rearward, and a sprocket 45 is pivotally attached to the protruding end of each arm 44. ),
These tin rockets 45 and the sprocket shaft 41
A pair of left and right chains 47 are stretched between the upper sprocket 46 and the upper sprocket 46 . 211 of the horizontal member 23 and the paper receiver are brackets 48 and 49 fixed to the guide 32.
From five locations on one side of the bracket 33, pins 50,
51, 52, 53, and 54 protrude inwardly, and chain guides 55, 56 provided to support and guide the upper running part of the chain 47 are connected to these pins 50.
~54. The chain 47 has two protruding buttons 57 on each side at positions that equally divide the entire circumference into two.As the chain 41 runs in the direction of the arrow by the drive of the motor 38, the buttons 5T engages with and pushes the rear end surface of the lowermost board 8, and the board holder is inserted into the guide 32, 29 and onto the board υ guide 18.

Next, Itauke will explain the folding device of the guide 32 and chain 41. A link 58 is pivotally attached to the bracket 49 fixed to the center of the guide 32, and a link 59 is attached to the lower end of the support column 2B.
is pivoted. FIG. 4 is a partially cutaway enlarged front view of FIG. Both ends of a horizontal handle shaft 61 are fitted into the shaft hole provided in the stop plate 60, and movement in the axial direction is restricted by its own collar and a snap ring 62. 63.64 is a stop play) 60
The plate supports shown by solid lines in FIG. 64 are in contact with the links 58 and 59, respectively, so that the links 58 and 59 are configured not to bend in the opposite direction from the solid line position in the figure. In addition, in the illustrated position where the stopper 63.84 abuts the link 58.59, the link 58.59 is beyond the dead center and is slightly bent in an inverted dogleg shape.

From this state, by grasping the handle shaft 61 and pushing it forward, the paper tray, guide 32, etc. are folded and stored in the hanging position shown by the chain line, and from this stored state, the handle shaft 61
By grasping 1 and pulling it backwards! 11 Returns to the actual recording position shown in the figure, and the plate 8 is inserted. Note that the cutout board 8 is not loaded at the time of folding.

Further, in the plate support, a pair of left and right guide sprockets 66 to which a chain 47 is attached are rotatably mounted on the support shaft 30, which is the center axis of rotation of the guide 32, and an arm 67 is attached to each guide sprocket. A flanged roller 68 is pivotally attached to the free end of the arm 67. By doing this, υ, when temporarily inserting the plate as shown by the solid line in FIG.
It is attached to 6. From this state, when the guide 32 of the paper receiver is folded as described above, the upper running part of the chain 47 is bent in the right angle direction while remaining attached to the guide sprocket 66, and the support shaft 30 is rotated so that the chain 47 is bent in the right angle direction. The arm 67 integrated with the chain 4 rotates to the chain line position.
The lower running portion of 7 is pushed up by the flanged roller 68, attached thereto, and bent in the right angle direction.

Further, the paper receiver has a detector 69 supported by the placket 48 below the front end of the board 8 loaded on the guide 32, which detects when the board 8 is stacked and issues a signal. In response to the signal, the motor 38 is started and the chain 47 runs, thereby pushing out the lowermost board 8. In addition, the paper receiver detects when the front end of the board 8 being conveyed for insertion passes in the board conveyance path between the guide 32 and the board guide 18 and issues a signal. A detector 70 is installed in the center of the conveyance path and near the Itadori guide 18.
The motor 38 that was driving the traveling of the chain 47 is stopped in response to this signal, and the plate 8 is configured to stop at this position. Furthermore, another detector (not shown) electrically connected to the motor 38 is provided on the paper ejecting device side, and detects when a predetermined amount of paper 7 is loaded on the previous board 8. When the board removal guide 18 has descended to a predetermined position and the preparation for the board removal work is completed, a signal is issued, and the stopped motor 38 is restarted to move the stopped board removal board 8 to the board removal guide 18. Configured to insert.

The operation of the board inserting device configured as above will be explained. After printing, the paper 7 held in the claws 4 of the paper ejection chain 2 is conveyed by the running of the paper ejection chain 2, and is transferred to the second
At the end of the conveyance shown in the figure, it is released from the grip of the claw 4 and falls. The fallen papers 7 are stacked on a board 8 on a board guide 18 provided at regular intervals on a board chain 15. The board chain 15 travels in the direction of arrow C in FIG. 2 as the paper 7 is loaded, and the board board 8 on which the paper 7 is loaded and the board guide 18 above it automatically descend.

On the other hand, prior to printing, the board receiver stacks several boards 8 onto the guide 32, and when printing starts, the detector 69 detects the presence of the board 8 and issues a signal. , the motor 38 is started, so the chain 47 runs and the bushing 57 engages with the rear edge of the lowermost board 8, which is pushed out by the paper receiver along the guide 32. When the front end of the pushed out board 8 passes through the center of the guide 29 and reaches the position of the detector 10, this detects the presence of the board 8, issues a signal, and stops the motor 38. Therefore, the plate υ plate 8 which is moving forward stops at an intermediate position shown by a chain line in FIG.

After this, as described above, when the stacked paper 7 on the previous board 8 reaches a predetermined amount as described above, and the board guide 18 above it descends to the same height as the board guide 29, A detector (not shown) detects this and issues a signal.
Since the motor 38 is started again, the chain 47 runs and moves the board cutting board 8 which is stopped at an intermediate position to the board cutting guide 18.
Insert inside. The paper 7 that continues to fall is stacked onto the inserted board 8. Note that when inserting the board 8 into the board guide 18, usually some kind of standby member is inserted into the falling path of the paper 7, and the board 8 is inserted while temporarily catching the falling paper. After insertion, a method is adopted in which the -standby member is removed and paper stacking is resumed.

The paper 7 thus stacked on the platen board 8 is removed by thrusting a fork such as a forklift into the lower part of the platen board 8 from the front side of the machine that faces the direction in which the paper delivery chain 20 travels. Take out one layer at a time. After printing is completed, the paper tray is placed on the board 8 remaining on the guide 32.
When the handle shaft B1 is grasped and pushed forward, the plate holder and the guide 32 etc. are moved to the support shaft 30. It rotates around , and is folded and stored in the hanging position shown by the chain line in FIG. At this time, the upper running part of the chain 47 is bent at right angles while being attached to the guide sprocket 66, and the lower running part is bent at a right angle.
A flanged roller 68 on the arm 87 side that rotates together with the support shaft 30
By being pushed up, the beam attaches to this and bends at a right angle.

To resume printing work, grasp the handle shaft 61 and pull it backwards. The links 58 and 59 will extend, and the paper tray will move the guide 32 to a horizontal position, and the links 58 and 59 will move as shown in FIG. The stopper 63°B4 comes into contact with the stop plate 60 at a position slightly inverted after passing the dead center, and rotation is restricted. Since the links 58 and 59 are beyond the dead center, the guide 32 of the plate holder will not fall down.

In this embodiment, a paper discharge device equipped with an endless chain type is illustrated as the board-cutting device, but a board-cutting device using crossbars 9 as shown in FIG. 5 may also be provided. . Further, in this embodiment, a chain 41 driven by a motor 38 and a pusher 57 are used as an extrusion device for the cut-out board, but a belt may be used instead of the chain, and extrusion can be performed using an air cylinder, a hydraulic cylinder, etc. You can. Furthermore, the guide 32 and chain 47 of the paper tray may be foldable and water resistant.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a sheet-fed printing machine's sheet-fed printing machine's sheet-fed printing machine, the sheet-fed printing machine has a sheet-fed printing press in which the sheet-fed printing press has a sheet-fed printing machine with a sheet-fed printing press having a sheet-fed printing press. A guide is installed, and this board support is equipped with a pushing device that pushes out the board board mounted on the guide onto the guide rail. By installing a detector that temporarily stops the cutting board and a detector that detects the completion of preparation for cutting and advances the stopped cutting board again, it is possible to insert the board if the cutting board has already moved forward. Since the stroke is shortened to the necessary minimum, the insertion speed can be reduced, safety and durability are improved, and the impact noise caused by one insertion is reduced, improving the working environment. Furthermore, the capacity of the drive device for insertion can be reduced, and the device can be provided at low cost.

[Brief explanation of the drawing]

1 to 4 show an embodiment of a board inserting device for a sheet-fed printing press according to the present invention, and FIG. 1 is a side view thereof, and FIG.
The figures are a front view from A in Fig. 1, a plan view from FIG. FIG. 2 is a front view of a sheet discharge device of a sheet-fed printing press. 8・Φ・Itadori board, 18・・Φ・Itadori guide, 29
．． 32-...Paper receiver is a guide, 38...Motor,
47...Chain, 57...Butsusha, 70.
Φ...Detector.

Claims (1)

[Claims] A board receiving guide installed almost continuously on a pair of board guide rails provided in the paper ejecting device, and an extruder for pushing out the board mounting board mounted on the board receiving guide onto the guide rails. a detector, which detects passage of the plank plate within the movement path of the plank plate extruded by the extrusion device and issues a stop signal of the plank plate to the drive source of the extrusion device; A board inserting device for a sheet-fed printing press, characterized in that a detector is provided which detects completion of board preparation and issues a signal for re-advancement of the board to the drive source of the extrusion device. .