JPH02270735A - Plate separating method - Google Patents

Abstract

PURPOSE:To separate a pair of plates consisting of a rigid plate and a nonrigid plate as they are by closely sticking a support plate which can be curved upward at least on both edges and has a suction function to suck the plates on the surface of a plate, sucking the rigid plate, and quickly curving both edges of the support plate upward. CONSTITUTION:A support plate 4 which can be curved upward on both edges and has a suction function is closely stuck on the surface of a rigid plate 1 located at the uppermost face of multiple pairs of stacked plates. The rigid plate 1 is sucked by the support plate 4, then the support plate 4 is quickly curved upward on both edges, and both edges of a nonrigid plate 2 beneath it are curved to the support plate 4 side together with the uppermost rigid plate 1. A pair of plates 1a (=1 and 2) at the uppermost face can be automatically separated from other multiple pairs of stacked plates 3.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method for separating a set of plates from a plurality of stacked plates, and more specifically, it relates to a method for separating a set of plates from a plurality of stacked plates. The present invention relates to a method of separating one set of plate materials from other plate materials.

(Prior art) For example, one rigid board and one non-rigid board of the same shape.
The work of separating one sheet from another as a set is done manually, for example, by using the paper feeding device shown in Japanese Patent Application Laid-Open No. 267634 in 1982, or in Japanese Patent Application Laid-Open No. 63-1999, from two types of sheets stacked separately. A method has been adopted in which various types of plate materials are separated one by one using a suction head or the like as shown in No. 267630, and then assembled in order.

(Problem to be solved by the invention) In such manual work, two plates are loaded separately, and each plate is separated from the stack to form a set. It is irrational and undesirable in terms of work time.

In addition, when separating plates using a paper feed roller or a suction head as described above, there are also disadvantages in terms of work function, such as the accuracy of the separation function being low and the feeding of two or more sheets being likely to occur.

In view of the above-mentioned problems, the present invention aims to provide a plate material separation method that can rationally and precisely separate a set of plate materials.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention uses two plates, a rigid plate placed horizontally and a non-rigid plate placed below. One set of plate materials, in which a large number of these sets of plate materials are stacked, is arranged such that at least both edges thereof can be bent upward on the surface of a rigid plate positioned on the top surface of the plurality of stacked sets of plate materials. A support plate having a suction function for adsorbing the rigid plate material is brought into close contact with the rigid plate material, and both edges of the support plate are rapidly curved upward, so that the uppermost rigid plate material as well as the lowermost rigid plate material are absorbed. The present invention is characterized by providing a plate material separation method in which both edges of the non-rigid plate materials are curved toward the support plate to separate the set of plate materials from the other plate materials.

At the time of separation, in order to bring the non-rigid plate material into close contact with the rigid plate material and perform the separation more reliably, the above-mentioned 1.
After both edges of a set of board materials are curved upward, air is sent between this set of non-rigid board materials and the other stacked sets of board materials, thereby bending the non-rigid board materials. ,
The above-mentioned 1.
It is preferable to use a method of separating one set of plates from other plates.

Also, here, separating from other plates means an operation of lifting both edges of one set of plates from the surface of the other sets of plates while it is on top of the other sets of plates, Subsequent steps such as transferring a set of plates from this separated state can be easily performed using well-known techniques and are not included in the separation here.

In addition, when two sets of boards are loaded and this method is used to separate one set of boards, when one set of boards is bent by the support plate, the board is stacked below this one set. There is only one set of board materials left, but this remaining set of board materials is also included in the concept of the other multiple sets of board materials that are loaded, and the same goes for this remaining set of board materials that are loaded. Needless to say, it can be separated by the following method.

(Function) As described above, the method of the present invention generates an air flow by rapidly curving both edges of the support plate upward, and the rigid plate material adsorbed to the support plate and the air flow below the support plate. Both edges of the plate material that is not rigid are also curved upward. Therefore, two plates can be automatically separated from the other plural sets of stacked plates at the same time.

This separation effect is caused by the fact that the uppermost rigid plate is in close contact with the support plate, so it will bend to some extent along with the support plate, and the rigid plate immediately below it will not have any rigidity. This is thought to occur because the rigid plates in the next set are bent together with the rigid plate above it, while the rigid plates in the next set remain uncurved because they are difficult to bend due to the straining effect caused by the bending of the support plate. It will be done.

(Example) Hereinafter, the plate material separation method of the present invention will be explained using the drawings.

As shown in Fig. 1, a rigid plate 1 and a non-rigid plate 2 are stacked horizontally, with the rigid plate 1 positioned on the top surface and the non-rigid plate 2 below. Further, below this, a plurality of sets of plate materials 3 are stacked in the same order. The rigid plate 1 located at the top of the plural sets of plate materials 3 and the non-rigid plate 2 located next are separated from the plural sets of plate materials 3 described above as one set of plate materials 1a. The method is shown in Figure 2 and below.

A support plate 4 having substantially the same shape as the plate is disposed above the rigid plate 1. This support plate 4 is configured to be able to descend in the direction of arrow A from a standby position above the rigid plate 1 shown in FIG. 1 to a contact position with the plate 1. It has a suction function to adsorb materials, and is also designed to be able to rise while supporting the adsorbed plates. Further, this support plate 4 has flexibility such that at least both edges can be bent upward. As shown in FIG. 2, the support plate 4 is lowered to a position where it is in close contact with the rigid plate 1, where a constant pressure can be applied to the rigid plate 1, and the rigid plate 1 is attracted. Along with this, as shown in FIG. Both edges of a non-rigid plate material 2 immediately below the plate material 1 are curved along the curvature of a support plate 4.

The plurality of sets of plate materials 3 stacked below this non-rigid plate material 2 are separated from the above-mentioned one set of plate materials 1a on the uppermost surface due to the straining action accompanying the curvature of the support plate 4.

Furthermore, it is preferable to perform this separation reliably by using the following method. Air nozzles 5a and 5b that eject air in a certain direction are arranged on the sides of both edges 4a of the support plate.
While descending in the direction of the arrow, a pair of plates is brought closer to the position where both edges of [a] are facing each other. ? As shown in FIG. By jetting air 7 from the air nozzles 5a, 5b into the gap between the plate material 2 without any rigidity, the non-rigid plate material 2 is brought into close contact with the rigid plate material 1 without any gap. Such an air nozzle 5a,
By blowing out air 7 from 5b, the curvature of both edges of the non-rigid plate material 2 is made permanent, and one set of plate materials 1a can be reliably separated from a plurality of sets of plate materials 3.

Next, a fourth As shown in the figure, by supporting the non-rigid plate material 2 from the lower surface with forks 8a, 8b, etc., and further curving the support plate 4 in the direction of the arrow B as shown in FIG. 2 and the plurality of sets of plate materials 3, and the supporting plate 4 is raised in the direction of arrow C while supporting one set of plate materials 1a. At this time, the air nozzles 5a and 5b stop operating and return to their standby positions. As shown in FIG. 7, by releasing the curved state of the support plate 4 in this raised position and returning it to the horizontal position, it becomes possible to transfer the separated set of plate materials 1a to the next process.

It should be noted that the apparatus for performing such a plate material separation method can be designed to be compatible with various plate material sizes by changing the curvature of the support plate 4, the air jet amount of the air nozzle, and the fork position.

(Effects of the Invention) The plate material separation method of the present invention has the following advantages:
A support plate whose at least both edges can be curved upward and has a suction function for adsorbing the plate material is brought into close contact with the support plate to adsorb the rigid plate material, and both edges of the support plate are rapidly curved upward, and the uppermost surface is The set of plates is separated from the other plates by curving both edges of the rigid plate and the non-rigid plate below it toward the supporting plate, so that the rigid plate and the non-rigid plate are separated. It is possible to simultaneously separate a set of plate materials from the loaded plate materials, thereby shortening the working time. Furthermore, since one set of plate materials that have been aligned and stacked can be separated from other plate materials as they are, there is no need to align them again, which is efficient. In addition, in such a method of separating plate materials, the separation function has good accuracy and it is possible to reliably separate a set of plate materials.

In other words, since it is possible to reliably separate one set of plates from other loaded plates by utilizing the straining action caused by the curvature of the support plate, it is possible to avoid multiple feeds due to so-called erroneous separation in which unnecessary plates are erroneously attached. It can be prevented.

Furthermore, when these rigid plate materials and non-rigid plate materials are bonded together by electrostatic charge, the static electricity causes numbness when touched by hand, but this inconvenience can be overcome by using automatic machines using this method.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram showing the state before separation of a set of plate materials according to an embodiment of the present invention, Fig. 2 is a schematic explanatory diagram showing the operation following Fig. 1, and Fig. 3A is a schematic diagram showing the state before separation of a set of plate materials. 3B is an explanatory diagram showing an enlarged part of FIG. 3A, FIG. 4 is an explanatory diagram showing the operation following FIG. 3A, and FIG. 5 is a state shown in FIG. 4. FIG. 6 is a schematic diagram showing the operation continued from FIG. 5, and FIG. 7 is a schematic diagram showing the operation continuing from FIG. 6. 1... Rigid plate material 1a... 1 set of plate material 2
...Plate material without rigidity 3...Multiple sets of plate material 4.
...Support plate 7...Air = 12-

Claims (2)

[Claims] (1) One set consists of two boards, a rigid board placed horizontally and a non-rigid board placed below it, and one set is selected from a large number of boards stacked with these sets. In the plate material separation method for separating plate materials, the surface of the rigid plate positioned on the top surface of the plurality of stacked plates is provided with a suction function for adsorbing the plate material, at least both edges of which are bendable upward. A supporting plate having a rigid plate is brought into close contact with the rigid plate to adsorb the rigid plate, and both edges of the supporting plate are rapidly curved upward, so that both the rigid plate on the uppermost surface and both edges of the non-rigid plate below it are 1 above by curving it toward the support plate side.
A plate material separation method characterized by separating a set of plate materials from other plate materials. (2) After curving both edges of the one set of plate materials upward, air is sent between the non-rigid plate materials of this one set of plate materials and the other stacked plurality of sets of plate materials, so that the above-mentioned 2. The method for separating plate materials according to claim 1, wherein said set of plate materials is separated from other plate materials by bringing a non-rigid plate material into close contact with a rigid plate material adsorbed on a support plate.