JPH0641186B2 - How to change the angle of bayer skirt - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a method for changing an angle of a vias cutter,
More specifically, the present invention relates to a method for changing the angle of a via-scatter for automatically changing the angle of a rubber-coated steel cord material without causing wrinkles or the like in the material and improving the cutting accuracy.

[Conventional technology]

Conventionally, the setup change accompanying the change of the cutting angle of the rubber sheet material such as the rubber-coated steel cord material is performed by, for example, the third method.
As shown in the figure, when the angle of the rubber sheet material A is changed to that of the rubber sheet material B, the rubber sheet material is unvulcanized, so that the rubber sheet material is not vulcanized on the surface of the carry-out conveyor Z or the turning table (not shown). In close contact.

Therefore, the tip b protruding from the cutting line XX of the rubber sheet material B and the upper part of the fan-shaped fixed table are bent, and the fan-shaped fixed table for changing the angle of the rubber sheet material can be corrected to correct it. This necessitates a lot of trouble and time for the setup change time, and due to defective material correction, cutting accuracy of several cuts has occurred after changing the angle.

[Problems to be solved by the invention]

By the way, when changing the angle of the rubber sheet material, in order to reduce the frictional resistance between the unvulcanized rubber sheet material and the fan-shaped fixed table, air is blown from the front surface of the fan-shaped fixed table toward the back side of the rubber sheet material. The angle is changed while the material is levitated, but since the entire rubber sheet material cannot be swung while levitated, the friction resistance cannot be reduced to zero. As described above, in the unvulcanized state, since the lateral rigidity is weak, the tip of the rubber sheet material and the upper part of the fan-shaped fixed table are inevitably bent, and it is necessary to revise them to solve various problems as described above. I couldn't.

[Object of the Invention]

The present invention has been devised by focusing on such a conventional problem, and shortens the setup change time by automatically performing the setup change at the time of changing the angle of the rubber sheet material without bending the tip of the rubber sheet material. In addition, it is an object of the present invention to provide a method for changing the angle of a vias cutter that improves the cutting accuracy after changing the angle.

[Means for Solving the Problems]

In order to achieve the above object, the present invention, when changing the cutting angle of the rubber sheet material, sucks and holds the rubber sheet material by the front material feeding means and retracts it by a certain amount, and after releasing the rubber sheet material, feeds the material. While retracting the means to the forward limit, while holding the front end side portion of the rubber sheet material by suction by the auxiliary suction means that swivels together with the swivel table,
The gist is to rotate the rubber sheet material together with the turning table at a predetermined angle to change the angle.

[Operation of the invention]

The present invention is configured as described above, and when the cutting angle of the rubber sheet material is changed, the rubber sheet material is retracted to a predetermined position and swung with the tip side portion adsorbed and held. The friction of the fan-shaped fixed table is almost eliminated, and the angle can be surely changed without bending the tip of the rubber sheet material.

Example of Invention

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of an angle changing device, in which 1 is a swivel table on which a rubber sheet material W such as a rubber-coated steel cord material is placed and swivels around a starting point O, and 2 is a fan shape fixed to cutting. The fixed tables 3 are carry-out conveyors for carrying out the cut rubber sheet material W, and a cutting device (not shown) cuts the rubber sheet material W along a cutting line XX.

In the vicinity of the cutting line XX, a front material feeding means 4 for attracting and holding the tip end portion Wa of the rubber sheet material W is installed, and the front material feeding means 4 is a magnet for a bar member 5. Alternatively, a plurality of suction means 6 such as suction pads are provided so that the tip end surface of the rubber sheet material W is suction-held, and the rubber sheet material W can be moved forward and backward along the supply direction and can be vertically moved up and down. Has been done.

Further, the swivel table 1 is also provided with a rear side material feeding means 7 having a similar structure, and further, on the side portion of the sectoral fixed table 2, the tip side portion Wb of the rubber sheet material W whose angle is changed. There is provided auxiliary suction means 8 for sucking and holding.

The auxiliary suction means 8 also has a structure similar to that of the front side material feeding means 4 and the rear side material feeding means 7 described above, and is configured to rotate simultaneously with the turning table 1 and to be able to move up and down in the vertical direction. .

The front side material feeding means 4 and the rear side material feeding means 7 are fixed by parallel links (not shown) so that they can be moved forward and backward at the same time.

Next, a method for changing the angle of the rubber sheet material W will be described with reference to FIG.
The steps will be described with reference to FIG. 2 (h).

FIG. 2 (a) shows an automatic operation stop state in which the rubber sheet material W is cut at a predetermined angle and the apparatus is temporarily stopped when the angle is changed.
The front end portion Wa of the rubber sheet material W is retracted by a predetermined amount in this state by adsorbing and holding the front and rear material feeding means 4, 7 (FIG. 2 (b)).

In FIGS. 2 (a) to 2 (h), 9 indicates a sorting conveyor and 10 indicates a carry-in conveyor.
As described above, after the front end Wa of the rubber sheet material W is retracted by a predetermined amount, the rubber sheet material W is released from the front side material feeding means 4 and the front side material feeding means 4 is retracted to the forward limit ( Fig. 2 (c)).

Next, the rubber sheet material W is swung together with the swivel table 1 by a predetermined angle while the tip side Wb of the rubber sheet material W is sucked and held by the auxiliary suction means 8 to change the angle (FIG. 2 (d)). ).

At this time, air is blown from the surface of the fan-shaped fixed table 2 to the bottom surface side of the rubber sheet material W so as to float.

After changing the angle of the rubber sheet material W, the auxiliary suction means 8
Opens the rubber sheet material W to avoid the standby position,
Next, the rubber sheet material W is fed by the rear side material feeding means 4 and 7.
Is sucked and held, and the tip of the rubber sheet material W is sent to the cutting source position (FIG. 2 (e)).

Then, from this state, as shown in FIG. 2 (f), the tip end portion W of the rubber sheet material W accompanying the angle change of the rubber sheet material W is shown.
The rubber sheet is fed by the material feeding means 4 and 7 by calculating the end length Wx of a by a calculation device (not shown) and detecting that the front end of the material has been fed forward from the cutting device over the entire width. The length Wx of the material tip end Wa is sent out and cut by a cutting device (not shown) (Fig. 2).
(g)).

The edge length amount Wx of the cut rubber sheet material front end portion Wa is
It is discharged to the outside by the sorting conveyor 9, the carry-in conveyor 10, and the like.

When the setup for changing the cutting angle of the rubber sheet material W is completed, the automatic one-cycle cutting operation of the rubber sheet material W is continuously performed (FIG. 2 (f)).

According to the present invention, when the cutting angle of the rubber sheet material W is changed, by performing the above-mentioned setup change, the tip Wa of the rubber sheet material W can be automatically performed in a short time without being deformed or bent. It is possible to improve work efficiency significantly.

〔The invention's effect〕

According to the present invention, when the cutting angle of the rubber sheet material is changed as described above, the rubber sheet material is sucked and held by the front side material feeding means and retracted by a certain amount, and after the rubber sheet material is opened, the material feeding means is operated. The rubber sheet material is swung together with the swivel table at a predetermined angle to change the angle in a state where the tip side portion of the rubber sheet material is sucked and held by the auxiliary suction means that swivels together with the swivel table while being retracted to the forward limit. When changing the angle of the sheet material, the setup change can be performed automatically without deforming or bending the tip of the rubber sheet material, and the setup change time can be shortened efficiently. There is an effect that the cutting accuracy can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of the angle changing device, and FIGS. 2 (a) to 2 (h).
Is an explanatory view showing steps when changing a cutting angle of a rubber sheet material, and FIG. 3 is an explanatory view when changing a cutting angle of a conventional rubber sheet material. 1 ... Turning table, 2 ... Fan-shaped fixed table, 3 ...
Carry-out conveyor, 4 ... front side material feeding means, 7 ... rear side material feeding means, 8 ... auxiliary suction means, XX ... cutting line, W ... rubber sheet material, Wa ... rubber sheet material , Wb ... Tip side of rubber sheet material.

Claims (1)

[Claims] 1. A rubber sheet material is sent out in a predetermined amount, cut by a cutting device at a cutting position, and when the cutting angle is changed,
In the method for changing the angle of a vias cutter, which is performed by rotating the original side, when changing the cutting angle of the rubber sheet material, the rubber sheet material is sucked and held by the front side material feeding means and retracted by a predetermined amount, where the rubber sheet material is After releasing, the material feeding means is retracted to the forward limit, while the rubber sheet material is turned together with the turning table by a predetermined angle while the tip end side portion of the rubber sheet material is sucked and held by the auxiliary sucking means which turns together with the turning table. A method for changing the angle of a vias cutter, which is characterized by changing the angle.