JPH07157118A - Separating method for sheet material - Google Patents

Abstract

PURPOSE:To separate a thin sheet material one by one from the one on the highest position of the sheet materials from among loaded body of piled thin sheet materials which may suggest the way of separating sheet materials by which sheets materials are always caught at a proper position. CONSTITUTION:In a method for shifting a pressed material formed by staking a specific number of sheet material in a zigzag shape so as to form a loaded body 1 and capable of nipping and transporting the pressed material from the loaded body 1, the end surface position of the pressed material positioned on the top of the loaded body 1 is recognized by a sensor 6 so as to calculate the trend of the loaded configuration of the loaded body 1 from the positional data of plural end surface data of the separated pressed material obtained by the sensor 6. Thereby, the nipping position is transmitted to the separating device previously, so as to separate the pressed material from the loaded body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention separates sheet materials by gripping and separating the uppermost pressed body from a stacked body in which a predetermined number of sheet materials are stacked. It is about the method.

[0002]

2. Description of the Related Art Sheet materials used for manufacturing laminated plates are cut into a predetermined size and stored in a stacked state. The sheet material used to manufacture this laminate is
Metal foil used for the surface layer, for example, copper foil or aluminum foil,
And there is a prepreg. The base material constituting the prepreg is glass, woven fabric of inorganic fibers such as asbestos, non-woven fabric or mat other polyamide, polyvinyl alcohol,
Organic synthetic fibers such as polyester and polyacrylic, and natural fibers such as pulp paper and cotton are used. Prepreg is
Epoxy resin, phenol resin, melamine resin, a polyimide resin or other thermosetting resin as a main component is impregnated with a resin varnish containing a silane coupling agent, and a flame retardant such as antimony trioxide, if necessary. It can be obtained by heating and drying.

The number of laminated plates required is the above number of prepregs.
The metal foil is obtained by arranging the metal foil on the upper surface or the lower surface of the prepreg, or on both upper and lower surfaces, sandwiching it between mirror plates, stacking a plurality of sets, and heating and pressing between hot plates.

A predetermined number of the above-mentioned sheet prepregs are piled up in a combination process to form a pressure-sensitive body, and the pressure-sensitive bodies are shifted and gripped from the pressure-sensitive body at the top of the stacked bodies stacked in a staggered manner. It is common practice to transfer it to a predetermined position and use it.

FIG. 4 is a side view of a sheet material separating apparatus showing an example of a conventional sheet material separating method.

As shown in FIG. 4, it is well known that the above-mentioned sheet material separating device separates the sheet material by separating claws (2) attached to independent lifting cylinders (4) on the left and right.
This sheet material separating device (7) has a pair of independent lifting cylinders (4) installed on the left and right of the lifter (8) on which the prepregs are loaded in the forward direction in which the prepregs are transferred.
A forward cylinder is provided in parallel at the tip of the lifting cylinder (4), and a separation claw (2) is provided at the tip of the cylinder.

In the method using the separating claw (2), the separating claw (2) is lowered from above the stacking body (1) of the prepreg by the elevating cylinder (4), and the stacking body (1) is moved by the separating claw (2). Then, the separating claw (2) is advanced by the advancing cylinder (9) and is inserted between the pressure receiving bodies (12). At this time, for example, as shown in (a), (b) and (c) of FIG.
If the separation claws of the separation device are not moved in order, the separation claws of the separation device return to their original positions by the air cylinder, and when the advanced separation claws (2) descend, the separation claws (2) move the stacking body (1).
There was a case where the inside of the end of was not pressed or the end could not be pressed sufficiently. Even if it is possible to press, since the separation claw is not inserted sufficiently, the pressure target body (12) is dropped when the pressure target body (12) is gripped and conveyed, or the separation claw (2) is not inserted. There was a case where it became too deep and wrinkles or damages were generated on the end surface of the sheet material forming the pressure-receiving body (12) when gripping the pressure-receiving body (12).

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is a sheet material for separating the uppermost pressed body from the stacked body of the stacked pressed body materials. It is an object of the present invention to provide a sheet material separating method which always holds a sheet material at an appropriate position.

[0009]

A method for separating a sheet material according to the present invention is a method for separating a pressed body (1) in which a predetermined number of sheet materials are stacked.
2) are stacked in a staggered manner to form a stacked body (1) of a body to be pressured (12), and a sheet material is attached so that the body to be pressured (12) can be grasped and conveyed by the body (1). In the method of separating, the body to be pressured (12) located at the top of the stack (1)
The position of the end face of the loading body (1) is confirmed by the sensor (6), and the tendency of the loading shape of the loading body (1) is calculated from the position data of the plurality of end faces of the separated pressure target body (12) by the sensor (6). In advance, the gripping position is transmitted to the separating device to separate the pressure-receiving body (12) from the stacking body (1).

[0010]

According to the sheet material separating method of the present invention, the pressed bodies (12) having a predetermined number of sheet materials stacked thereon are stacked in a staggered manner, and the loaded body (1) of the pressed bodies (12) is stacked. )Than,
In the method of separating sheet materials so that the pressure-receiving body (12) can be gripped and conveyed, the position of the end face of the pressure-receiving body (12) located at the top of the stacking body (1) is always detected by the sensor (6). By confirming with the above, it is possible to calculate the tendency of the loading shape of the loading body (1) by using a plurality of past data of the position of the end surface of the pressure-receiving body (12) of the sensor (6). Based on this tendency of the stacking shape, the separating device next determines the pressure-sensitive body (1
2) Calculate the position to grab and move the separation device.

[0011]

FIG. 1 is a side view showing an example of a sheet material separating apparatus using the sheet material separating method of the present invention.
(A) (b) (c) is a stacking side view of a stack of sheet materials,
FIG. 3 is a detailed perspective view of the separation claw of the separation device.

Separator for sheet material such as prepreg (7)
As shown in FIG. 1, an advancing cylinder (9) is attached to an elevating cylinder (4) arranged to face each other, and a separation pawl (2) and a sensor (6) are further provided at the tip of the advancing cylinder (9).
Is attached. Further, an arm (5) pivotally attached by a pivot is attached to the separation claw (2). A laser displacement sensor was used for this sensor (6).

As shown in FIG. 3, the separation claw (2) is composed of a main body (10) and a claw (11), the claw (11) is formed of an elastic leaf spring, and the tip end thereof is arcuate. It is processed.

According to the sheet material separating method of the present invention, first, the advance cylinder (9) of the separating device (7) on the left side of FIG.
To move the separating claw (2) above the stack (1) of sheet materials. Here, the position of the end face of the uppermost sheet material is confirmed by using the sensor (6), and further, the advance cylinder (9) is moved forward or backward to move the separation claw (2) above the end portion of the sheet material. Position. Then, this position is stored. Next, the lift-up cylinder (4) lowers the separation claw (2) and presses the second upper surface of the pressed body (12) of the sheet material. Second pressure body (1
When the upper surface of (2) is pressed by the separating claw (2), the pressed body (12) of the sheet material bends, and a gap (3) is formed between the uppermost pressed body (12) and the lowermost sheet material. To form.

Here, the separating device (7) is advanced to insert the separating claw (2) between the sheet materials. Separation claw (2)
Is the surface of the uppermost sheet material of the second pressed body (12), without pressing the end surface of the lowermost sheet material of the first pressed body (12) without damaging the end surface. It can be inserted between sheet materials without causing scratches. When the separation claw (2) is inserted, the arm (5) pivotally attached to the separation claw (2) holds the uppermost body (12) to be pressed.

Next, the advance cylinder (9) is retracted while the uppermost pressure-sensitive body (12) is held, and is retracted from the position of the end surface of the sheet material of the second pressure-sensitive body (12). Then, the separation device (7) on the right side holds the uppermost pressure-sensitive body (12) so that it can be separated. The right separation device (7) is the same as the left separation device (7), and the uppermost pressure-sensitive body (12).
The separation claw (2) is inserted between the sheet of No. 2 and the sheet of the second body (12) to be pressed, and the uppermost body (12) is pressed by the arm (5) pivotally attached to the separation claw (2). Grab.

The uppermost pressed body (12) separated from the load body (1) by the left and right separating devices (7) is completely separated from the second pressed body (12). It

Thereafter, similarly, the pressed body (12) of the sheet material is separated from the stacking body (1), and the position of the end surface of the sheet material is stored. The position of the end face of the sheet material is stored every other position because the stacking body (1) is staggered. Based on this value, it is judged whether or not the shape of the loading body (1) is within (a), (b) and (c) of Fig. 2, and before the sensor (6) recognizes the end face, Move the separating claw.

For example, in the case of FIG. 2B, paying attention only to the right side of the figure, the further the disassembly, the farther the end face of the sheet material is from the right separating device. At this time, the value of the sensor (6) becomes small. Therefore, the separation claw is advanced by the advance cylinder before the sensor (6) is confirmed and moved.

[0020]

As described above, according to the sheet material separating method of the present invention, the uppermost sheet material from the stack of sheet materials stacked in a zigzag pattern by shifting a predetermined number of pressure objects. It is possible to separate the body to be pressed, and even if the stack of sheet materials is distorted, the shape is recognized,
The sheet can be securely gripped by the separating claw, and can be separated without damaging the end surface of the sheet material.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a sheet material separating apparatus using a sheet material separating method of the present invention.

FIG. 2 is a stacking side view of a stack of pressure members of sheet material.

FIG. 3 is a detailed perspective view of a separation claw of the separation device of FIG.

FIG. 4 is a side view of a conventional separation device.

[Explanation of symbols]

 1 Loading Body 2 Separation Claw 3 Gap 4 Lifting Cylinder 5 Arm 6 Sensor 7 Separation Device 8 Lifter 9 Advance Cylinder 10 Main Body 11 Claw 12 Pressed Body

Claims (1)

[Claims] 1. A pressed body (1) in which a predetermined number of sheet materials are stacked.
2) are stacked in a staggered manner to form a stacked body (1) of a body to be pressured (12), and a sheet material is attached so that the body to be pressured (12) can be grasped and conveyed by the body (1). In the method of separating, the body to be pressured (12) located at the top of the stack (1)
The position of the end face of the loading body (1) is confirmed by the sensor (6), and the tendency of the loading shape of the loading body (1) is calculated from the position data of the plurality of end faces of the separated pressure target body (12) by the sensor (6). A method for separating a sheet material, which comprises transmitting a gripping position to a separating device in advance to separate the pressed body (12) from the stack body (1).