JPH0350118Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field: The present invention relates to an improvement of a paper ejection mechanism in an automatic pallet stacking device for cut paper.

Conventional technology: Recently, paper cutting work that cuts sheets stacked at appropriate heights to desired dimensions for bookbinding or other purposes has become more and more difficult. Processing methods that automate processes and improve efficiency are being adopted.

The paper that has been cut to the required size through the paper feeding process and the cutting process in the cutting machine is sent as it is by sliding on the conveying table to the carrying out device of the paper discharging process, where it is placed on a pallet to be transferred to another process. This unloading device (also known as a paper stacker) stacks sheets of paper for each cutting operation on a transporting pallet placed in a predetermined position. In order to align and stack the layers in sequence, the receiving table moves up and down, and the sized paper layers are smoothly slid from the elevating receiving table onto the pallet, and the stacking operation is fully automated. However, when transferring the paper from the lifting receiving table to the pallet, the upper layer of paper inevitably becomes misaligned, making it difficult to stack it correctly. However, there are some disadvantages such as the fact that the process does not work properly, and this poses a problem in terms of automation. In order to solve such problems, we devised a stacking and organizing device for cut paper delivery equipment that can correctly transfer and stack cut paper from a receiving table onto a pallet without the need for correction after stacking. It was obtained in Utility Model Application Publication No. 12550 (1983). In this device, after the paper support table is moved to the paper discharge position, a width adjustment function is provided at a position facing the positioning stationary vertical guide, and when the paper support table is retreated, the paper support table is moved to the paper discharge position. A so-called double shutter type vertical guide plate equipped with an auxiliary guide plate to prevent the paper from shifting following the movement of the table is attached, and the guide body pinches the front and back of the paper layer to be sent out at the paper ejection position. They are stacked one after another on a pallet in such a way that no misalignment occurs.

Furthermore, a technique for laterally moving a bundle of paper stacked in an appropriate amount or a similar article by gripping one end thereof is known, for example, from Japanese Patent Laid-Open Publication No. 57-23549.

Problem to be solved: As mentioned above, according to the technology obtained through the invention of the prior application, the table is moved back simply by abutting the guide body against the end face of the paper layer, and the paper layer is removed from the pallet from the table. Since the paper layers are stacked one after another on top of each other, the front and back directions of the paper layers are only restricted for the time being, so it is inevitable that each layer will be slightly misaligned due to the influence of frictional force when the table retreats. This will cause problems during handling in the next work process. The problem is that the weight of the paper to be handled is quite large, and since the operation is automatic, it is difficult to manually correct the problem, and the system has not yet reached a satisfactory state.

In addition, the latter technique, in which the stack is moved horizontally by grasping it at its edges, involves moving the article while gripping it, so when handling relatively large stacks of paper, it is necessary to avoid misalignment between paper layers during movement. is more likely to occur.
Therefore, a stronger gripping force is required, which not only increases the size of the function but also deforms the gripped portion, resulting in undesirable results.

Means for solving the problem: In the present invention, this problem is solved. During the horizontal feeding for paper ejection, the paper is mounted on the table and moved to the ejection position, and then when the paper is ejected, it is moved to the ejection position. When the paper support table retreats from the bottom of the paper layer fed between both vertical guides, the end of the paper layer fed in is grabbed by the positioning vertical guide, causing the paper layer to shift as the table retreats. It is an object of the present invention to provide a paper discharge guide and holding mechanism in a cut paper delivery device, which allows sheets to be stacked one after another at a paper discharge position without any problem.

On the front side of the vertical main frame, a paper support table supported so as to be horizontally movable, a vertical guide body for positioning paper ejection, and a vertical guide body provided with a width adjustment function are attached to the front surface of the vertical main frame so as to be movable up and down. In the paper ejection guide mechanism of a cut paper delivery device comprising an operating mechanism, the paper ejection positioning vertical guide is capable of retracting and returning a required amount from a set position, and the support arm of the paper ejection positioning vertical guide is , a main power cylinder erected at a plurality of guide plate attachment positions that mesh with the comb-like notches of the paper support table via brackets that protrude toward the paper support table; A slide shaft having a receiving piece fixed to its lower end is supported by a bearing on a bracket and is operated in the vertical direction by a main power cylinder, and a sub-power cylinder is attached to the middle of the slide shaft with a mounting bracket, facing the receiving piece. an ejected paper layer edge chucking mechanism including a presser piece to be operated, and disposed such that a gripping part constituted by the receiving piece and the presser piece is located in front of the guide plate;
This is a paper discharge guide holding mechanism in a cut paper discharge device.

Effect: According to the present invention, when the cut paper layer placed on the paper support table of the unloading device is moved horizontally to the ejection position, the waiting ejection position vertical After the paper layer to be ejected is aligned in a predetermined position from front to back by the guide body and the vertical guide body which has a width adjustment function at the rear, both the main and sub power cylinders of the chucking mechanism remove the receiving piece and the holding piece. Grasp the front end of the paper layer and lower it until the receiving piece comes into contact with the already ejected paper layer. At the same time, move the support table backward so that it is pulled out from under the paper layer, so that all the paper layers are on the support table. They are discharged from the top and stacked, and then the gripping force of the chucking mechanism is released, that is, both the main and sub power cylinders are operated in reverse, and the positioning vertical guide body is once retreated together with the support arm to separate the receiving piece and the holding piece. It is removed from the paper layer location and then moved to the upper position and returned to receive the next ejected paper layer.

Embodiment: Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. What is shown in FIGS. The mold main frame 2 is a paper support table equipped with a well-known air film slide mechanism (not shown) on its upper surface, and the paper ejection side end 3 has comb-shaped cuts 3' of an appropriate length at appropriate pitches. A plurality of them are provided, and the upper surface is formed in a fork shape with a downward slope toward the tip. Reference numeral 4 denotes a lateral movement guide support for the paper receiving and supporting table 2, which is equipped with a guide rail on the front side and a drive mechanism in an appropriate position, so that it can be driven up and down in the up and down direction on the front side of the main frame 1. There is. Reference numeral 5 denotes a paper organizing support that supports a vertical guide for paper organizing and a backing plate for receiving and organizing paper layers on the table. It is attached so that it can be moved up and down separately, and it protrudes horizontally toward the discharge side of the sending paper layer A, and a positioning scale, guide rail, control equipment, etc. are attached to the front side. Reference numeral 6 denotes a rearranging plate, which is positioned on the paper receiving table 2 with its upper portion fixed to an arm 6' which projects forward from the front surface of the base of the support body 5 and is fixed thereto. 7
is a positioning vertical guide for transferring the paper layer onto the pallet at a predetermined position, and can be set at a desired position along the guide rail in front of the paper organizing support 5;
According to a predetermined control program, the paper receiving table is moved from an arm 7' whose base end is fixed and protrudes forward at right angles to a carrier 8 which is configured to retreat from an appropriate amount setting position after a paper feeding operation to be described later. A large number of guide plates 7'' that can be engaged with the comb-like notches 3' of 2 are suspended. 10 is a vertical guide body provided with a width-aligning function, and is arranged along the front surface of the support body 5. A carrier 11 is provided to project at right angles from the front surface of a carrier 11 which is movable laterally and fixed at a predetermined position. A large number of auxiliary guide plates (not shown) that are vertically operated by a single power cylinder 12 so as to match each other.
It is equipped with This auxiliary guide plate group is connected to the positioning vertical guide 7 by an operating power cylinder connected to a control mechanism so as to move up and down in a predetermined order in conjunction with the width-aligning operation to properly adjust the longitudinal dimensions of the paper to be handled. ing. The mounting carrier 11 of the vertical guide 10 is associated with it so that the width shifting operation of the vertical guide 10 on the width shifting side is performed by a power cylinder (not shown) attached to the support 5.

Paper that is placed on the paper receiving table 2 and sent out is placed at a plurality of locations (two locations in the embodiment) among the mounting positions of the guide plates 7'' vertically installed at required intervals on the front surface of the arm 7' of the vertical positioning guide body 7. A chucking mechanism 20 is provided for gripping the end of layer A. As illustrated in FIG. Support bracket 2 with piece 21
2 as a reference, the single-acting main power cylinder 23 is installed vertically at the top end of the bracket 22, and the slide bearing 24 is fitted at the rear position of the bracket 22 where the cylinder 23 is installed. A connecting piece 2 is connected between the upper end of the shaft 25 and the upper end of the piston rod 23' of the main power cylinder 23.
6, and a receiving piece 27 is horizontally fixed to the lower end of the slide shaft 25 and protrudes an appropriate amount (approximately 40 m/m in the embodiment) from the front surface of the guide plate 7''. A mounting bracket 28 is attached so that the positioning can be adjusted, and an auxiliary power cylinder 29 is mounted upright on the upper surface of this mounting bracket 28, and a piston rod 29' of the auxiliary power cylinder 29 is protruded downward, and the base of the auxiliary power cylinder 29 has a bearing attached thereto. The piston rod 23' of the main cylinder 23 is normally in a protruding state and the piston rod 29' of the sub cylinder 29 is in a retracted state. It is configured to be connected to a pressure fluid supply source (not shown) via a control circuit.

With this configuration, when the cut paper layer A (see Fig. 1) is fed onto the paper receiving/supporting table 2 of the unloading device, one end of this paper layer A is placed on the backing plate 6 as in the conventional case. After abutting and aligning, the paper support table 2 is attached to the main frame 1 via its support 4.
The table 2 is lowered by the drive mechanism on the side, and as is well known, the table 2 is lowered until it is detected at a position slightly above the upper surface of the pallet brought to the paper discharge position a by a detection switch or the like. Then, the paper support table 2 is moved forward and stopped by the action of the control mechanism at a position where the end face of the loaded paper layer A comes into contact with the vertical guide plate 7'' of the positioning vertical guide 7. Mechanism 20
The receiving piece 27 and the holding piece 30 are related to the sheet discharge side end 3 of the table 2 as shown by the solid line in FIG. 3, as shown by the solid line. That is, the receiving piece 27 is positioned slightly below the upper surface of the paper discharge side end 3 of the table 2, and the pressing piece 30 is positioned above the upper surface of the paper layer A.

Next, the paper organizing support 5 is lowered slightly, and the attached vertical guides 7 and 10 sandwich both sides of the paper layer A on the support table 2, and the width-shifting vertical guide 10 is moved toward the positioning vertical guide 7. At least keep the paper layer A in place. When this is completed, the chucking mechanism 20 is activated and the piston rod 2 of the auxiliary power cylinder 29 is
9' to lower the presser piece 30, and the receiving piece 2
7 and the presser piece 30 to grip and hold the end of the paper layer A (see FIG. 4). After that, when the paper support table 2 is moved backward, only the paper support table 2 moves backward while the paper layer A is held by the chuck mechanism 20. Then, when the table 2 retreats by an appropriate amount, the main power cylinder 2 of the chucking mechanism 20
By retracting the 3-piston rod 23',
Slide shaft 2 connected by connecting piece 26
5 descends, and while holding the end of the paper layer A between the holding piece 30 and the receiving piece 27, place the paper layer A on the pallet P from the end as shown in FIG.
By retreating, the paper layer A is placed on the pallet P from the paper support table 2. Therefore, the sub power cylinder 29 of the chucking mechanism 20 is operated to return to raise the presser piece 30, and after releasing the grip, the entire positioning vertical guide body 7 is moved back by an appropriate amount, so that the receiving piece 27 is aligned with the lower surface of the paper layer A. Since it slips out from between the pallet P and is released, the main cylinder 23 immediately
is operated to raise the slide shaft 25 by one stroke (see FIG. 6), and then the positioning vertical guide 7 is returned to a predetermined position to return to the state of receiving the next ejected paper layer. Thereafter, by repeating this procedure one after another, the papers can be stacked correctly to the required height. When the paper support table 2 is in the lowered position, the attached detection means detects the upper surface of the previously loaded paper layer and operates in sequence, and the auxiliary guide plate attached to the width-shifting vertical guide body 10 is activated when the paper support table 2 is in the lowered position. table 2
When the operating cylinder 1 reaches a position where it can engage with the notch 3' just before it leaves the paper layer A, the operating cylinder 1
If the auxiliary guide plate is lowered by step 2, the free end of the paper layer A is securely held by the auxiliary guide plate, and can be transferred from the top of the paper support table 2 to the discharge section without shifting. . (It may be of a type that does not have an auxiliary guide plate.) Effects of the invention: According to the invention, in order to carry out the paper after cutting,
When repeatedly moving appropriate amounts of paper to the unloading position and stacking them, the aligned paper layers are held by vertical guides at the front and rear of the moving direction, and the edges of the paper layers are grasped and the paper is stacked. By retracting the table that supported the layers, we were able to process them without causing any misalignment, allowing them to be stacked and transported in accurate alignment, and to be handled in the next process without any hindrance. This has made it possible to streamline the process.

Furthermore, in the present invention, the holding piece of the ejected paper layer edge chucking mechanism is provided so that it can be adjusted up and down with the mounting bracket together with the auxiliary power cylinder for its operation. Optimal gripping conditions can be set.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a front view of the unloading device equipped with the mechanism of the present invention;
FIG. 2 is a plan view, FIG. 3 is an enlarged front view of the main parts and also shows a part of the operating mode, and FIGS. 4 to 6 are diagrams showing the operating mode. 1...Main frame, 2...Paper support table, 3
...Edge on paper ejection side, 3'...Comb-shaped notch, 5...
...Support for paper arrangement, 6...Paper plate for arrangement, 7...
Positioning vertical guide body, 7'... Arm, 7''... Guide plate, 8, 11... Carrier, 10... Vertical guide body with width adjustment function, 20... Chucking mechanism, 22... Bracket, 23 ...Main power cylinder, 23', 29'...Piston rod, 24...
...Slide bearing, 25...Slide shaft, 26...Connecting piece, 27...Receiving piece, 28...
Mounting bracket, 29...Auxiliary power cylinder, 30...
...presser piece, A...paper layer.

Claims (1)

[Scope of Claim for Utility Model Registration] A paper receiving table, a vertical guide for positioning paper ejection, and a vertical guide with a width alignment function are supported on the front side of the vertical main frame so as to be movable laterally, and are movable vertically. In the paper ejection guide mechanism of the cut paper ejection device which is attached to a paper ejection device and is equipped with an operation mechanism for these movable parts, the paper ejection positioning vertical guide member is capable of retracting and returning by a required amount from a set position, and the paper ejection positioning The support arm of the positioning vertical guide is provided with brackets protruding toward the paper support table at a plurality of locations among guide plate attachment positions that mesh with the comb-shaped notches of the paper support table. A main power cylinder is provided, a slide shaft that is supported by a bearing on the bracket and has a receiving piece fixed to its lower end that is operated in the vertical direction by the main power cylinder, and an auxiliary power cylinder that is attached to the middle of the slide shaft with a mounting bracket. and a presser piece operated opposite to the receiving piece, the ejected paper layer edge chucking mechanism is configured such that the gripping portion constituted by the receiving piece and the presser piece is located in front of the positioning vertical guide plate. A paper ejection guide holding mechanism in a cut paper delivery device, characterized in that the paper ejection guide holding mechanism is provided.