JPS5934481B2 - Pressing means release device for automatic reciprocating cutting plane machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for releasing a suppressing means (chip breaker) during reversal in automatic reciprocating foam forming.

Conventional automatic reciprocating cutting awamori does not have a pressing means (hereinafter referred to as a chip breaker), so if the rear end of the material in the feeding direction comes off the feeding roller, the material cannot be held down stably and may be scraped more than necessary. , for thin plate materials,
There were drawbacks such as cracks appearing at the edges.

An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to prevent material flapping by providing an automatic reciprocating cutting foam molding with a chip breaker that can be released when reversed.

The present invention focuses on lifting a support member that supports a plurality of chip breakers that can be raised and lowered during the return journey of the material in automatic reciprocating foam forming, and releasing the chip breakers from the surface of the material. The vertical movement of
It is associated with detection means for detecting the presence or absence of material, sensing means for sensing the rear end of the material in the feeding direction, and timer means for generating a signal for reversing the reversible motor.

FIG. 1 is a schematic side view showing an embodiment of the present invention.

A pressure regulating force 2 having a regulating force 1 is rotatably supported, and the pressure regulating force 1 is rotatably supported.
A material feeding table 7 is disposed opposite to an elevating member 5 which rotatably supports a material feeding member 3 consisting of a plurality of material feeding rollers or material feeding belts, etc., at the front and rear of the material feeding table 7, and a material feeding path is provided in this opposing space. Form.

The elevating member 5 is connected to a material feeding table 7 by a plurality of columns 6.
The space between the material feeding paths can be adjusted by operating the lifting bundle 8 and rotating the screw shaft 9.

The pressure regulating member 1 and the material feeding member 3, which are rotatably supported by the elevating member 5, are rotated by an electric motor 39 and a reversible electric motor 4, respectively, via power transmission means (not shown).

A plurality of chip breakers 10 are provided at appropriate locations in the space in front of the pressure regulation 2 and behind the front material feeding member by a support member 13 that can be raised and lowered.
A pin 14 is fitted into the support member 13, and is supported by the elevating member 5 so as to be movable up and down.

The support member 14 is provided with a bolt 12 which further presses the chip breaker downward via a spring 11, and the pressing force can be varied by adjusting the bolt 12.

A link 15 is disposed below the pin 14 fitted to the fifth support member 13, with the pin 16 as a rotation fulcrum, and one end of the link 15 is connected to a movable iron piece 18 of a solenoid 17.

Chip breaker 10 and spring 11 shown in FIG.
The bolt 12, the support member 13, the pin 14, the link 15, the pin 16, the solenoid 17, and the movable iron piece 18 are the outline of the pressing means release mechanism of the present invention.

The lower end of the chip breaker 10, which is the pressing means, is located below the rotating circumferential surface, ie, the cutting surface, of the force regulating force to which the pressure regulating machine body is attached.

Operate the lifting handle 8 to raise and lower the lifting body 5 and remove the material 2.
When performing forward cutting by appropriately setting the cutting amount of 0, press the surface of the material 200 with the chip breaker 10,
The material 20 is cut by rotating the adjusting force 1 while bringing the lower surface of the material 20 into close contact with the material feeding table 7.

When the rear end of the material 20 (the right end of the material 20 in FIG. 1) passes the lower end of the chip breaker 10, the return force of the spring returns the chip breaker 10 to its original position.
The lower end of the chip breaker 10 protrudes below the cutting surface.

Further, the material 20 is fed, and before the rear end of the material 20 passes through the pressure regulation 2 and reaches the position of the rear material feeding member 3, the rotation of the material feeding member is stopped, and the feeding of the material 20 is stopped.

Next, when the material is transported back, the lower end of the chip breaker 10 protrudes from the cutting surface, so the material 20
When the material 20 is moved backwards, the right end of the material 20 becomes the chip breaker.
It reaches the lower end of 10 and becomes impossible to feed.

Therefore, before the material 20 is fed backwards (or before the right end of the material 20 reaches the lower end of the chip breaker 10), the solenoid 17 is energized, the movable iron piece 18 is attracted, and the link 15 is Through the pin 14, that is, the support member 13
is pushed upward, and the lower end of the chip breaker 10 is retracted above the cutting surface.

With the chip breaker 10 retracted, the material 20 is fed backwards and pulled out to the front side.

When the left end of the material 20 passes the detector 19, the excitation of the solenoid 17 is stopped, and due to the weight of the pressing means,
Return to the lower position and prepare for the next cutting operation.

FIG. 3 shows a block diagram of the control circuit of the pressing means release mechanism of the present invention.

In FIG. 3, 21 is a starting switch for rotating the material feeding member 3 and the pressure regulation 2, and a set/reset circuit 22 is set by an output signal from the starting switch.

When receiving the high level of the 1 side output of the set/reset circuit 22, the relay coil 31 is energized, the normally open relay contact 35 is energized, the motor 39 rotates, and the pressure regulator 2 rotates.

The differentiation circuit 23 senses the rising edge of the high level signal of the first output of the set/reset circuit 22 and issues an output, setting the set/reset circuit 24 and causing its first output to go high.

Upon receiving the high level signal, the relay coil 32 is energized,
The normally open relay contact 36 is energized, the reversible electric motor 4 rotates in the forward direction, and the material feeding member 3 rotates to feed the material 20.

During the forward pass, since the solenoid 17 is not energized, the feed cutting is performed with the material 20 being moderately compressed by the chip breaker 10.

When the right end of the material 20 passes the detector 19, the detector 1
The falling edge of the output signal 9 is detected by the differentiating circuit 25 and outputted, and the delay circuit 26 is activated.

The delay circuit 26 is a timer for stopping the material feeding before the right end of the material 20 passes through the pressure regulation 2 and reaches the rear material feeding member 3. After a certain period of time, the delay circuit 26 Generates an output to reset the set/reset circuit 24, Part 1
The side output is reversed to low level, the excitation of the relay coil 32 is stopped, the normally open relay contact 36 is deenergized, the forward rotation of the reversible motor is stopped, and the material 20 is transferred to the material feeding table 7 and the rear material feeding member. The feed is stopped when it is caught between the two.

Further, the delay circuit 27 issues an output after a certain period of delay, resets the set/reset circuit 28, and makes its first output high level.

Upon receiving the high level signal, the solenoid is energized, the movable iron piece 18 is absorbed, and the chip breaker 10 is retracted upward via the link 15.

At the same time, the relay coil 33 is energized and the normally open relay contact 37
is energized, the reversible electric motor 4 rotates in the reverse direction, and the material 2
0 is sent backwards.

The material 20 is fed backwards, and the left end of the material 20 is detected by the detector 19.
, the differential circuit 25 senses the falling edge of the output signal of the detector 19 and issues an output.

The set/reset circuits 22 and 28 are reset by using the output signal through the AND gates 29 and 30, and the respective 1 side outputs are inverted from the bi level to the low level, and the relay coils 31 and 33, as well as the coil 34 of the solenoid 17, are inverted. Stops the excitation.

As a result, the normally open relay contacts 35 and 37 are deenergized, the electric motor 39 and the reversible electric motor 4 are stopped, and the rotation of the pressure regulation 2 and the material feeding section 3 is stopped.

Furthermore, since the excitation of the coil 34 of the solenoid 17 is stopped, it is returned to its original state by its own weight.

AND gates 29 and 30 in FIG. 3 are for selecting and transmitting the output of the output signal of the differentiating circuit 25 only during the return journey of the material 20.

Also, the 0 side output of the set/reset circuit 28 is connected to the delay circuit 2.
The delay circuits 26 and 2 are fed back to 6 and 27.
This is because 7 is activated only on the outward journey.

In this way, during the forward movement of the material 20, the pressure of the chip breaker 10 causes the material 20 to flap, even if it is a thin plate (stable cutting is possible, and during the return movement, the chip breaker 10 is placed above the cutting surface. Material 2
It is possible to feed the material without damaging the cutting surface, and when one operation is completed, it is possible to prepare for the next operation.

Fig. 4 shows an example of application of Fig. 2.

In FIG. 4, a wedge-shaped arm 43 connected to the movable iron piece 18 of the solenoid 17 is provided with an elongated hole 44, and pins 40 and 41 fixed to the elevating member 5 are provided in the elongated hole 44. It is arranged so that it can be slid in the horizontal direction.

The pin 42 restricts the leftward movement of the arm 43;
That is, the amount by which the lower end of the chip breaker 10 protrudes from the cutting surface is limited.

During the outward movement of the material 20, the arm 43 is pulled until it hits the pin 42 by the compressive force of the spring 45, and during the return movement, the coil 34 of the solenoid 17 is energized, and the movable iron piece 1
8, the arm 43 is moved leftward by a distance regulated by the pins 41 and 42, and the lower end of the chip breaker 10 is retracted above the cutting surface.

Furthermore, the block diagram in Fig. 3 is for the case where the detector 19 is placed in front of the material feeding table, but if the detector 19 is placed in the center of the material feeding path or at the rear, ,
In addition to reducing the regulation time of the delay circuit 26, the outputs of the AND gates 29 and 30 are passed through the delay circuits as reset inputs of the set/reset circuits 22 and 28, so that the left end of the material 20 is connected to the detector 19 during the return trip. A similar effect can be obtained by setting the time from when the object passes through until it is pulled out to the front side.

According to the present invention, as described above, in automatic reciprocating cutting awamori, a pressurization release device for the chip breaker is provided when reversing, so that the chip breaker does not hit the material during reciprocating cutting (also, during cutting, No material flapping (material can be fed stably).

[Brief explanation of drawings]

FIG. 1 is a side view showing a schematic configuration of a pressing means releasing device according to the present invention, FIG. 2 is a side view showing details of the pressing means releasing device, and FIG. 3 is a block diagram showing a circuit configuration of the present invention. , FIG. 4 is a side view showing an example of application of the present invention. In the figure, 1 is a power adjustment, 2 is a pressure adjustment, 3 is a material feeding member, 4 is a reversible electric motor, 5 is a lifting member, 6 is a column, 7 is a material feeding table,
8 is a lifting bundle, 9 is a screw shaft, and 10 is a chip breaker.
111 and 44 are springs, 12 is a bolt, 13 is a support member, 14゜16.40, 41 and 42 are pins, 15
is a link, 17 is a solenoid, 18 is a movable iron piece, 19 is a detector, 20 is a material, 21 is a starting switch, 22° 24
and 28 are set/reset circuits, 23 and 25 are differential circuits, 26 and 27 are delay circuits, 29 and 30 are AND gates, 31.32 and 33 are relay coils, 34 are coils, 35.36 and 37 are normally open A relay contact, 38 a power source, 39 a motor, 43 an arm, 44 a long body, and 45 a spring.

Claims (1)

[Claims] 1. A material feeding member is provided before and after a pressure regulating member having force regulating, a material feeding table facing the regulating force and material feeding member is arranged to form a material feeding path, and the material is driven in forward and reverse directions by a reversible electric motor. In automatic reciprocating cutting foam molding having a material feeding member for feeding material, a material pressing means supported by a support member and attached so as to be movable up and down is provided on the front side of the force adjustment, and the presence/absence of material provided at an appropriate location on the material feeding path is provided. a detection means for detecting the rear end of the material in the feeding direction in response to the output from the detection means; , by providing a timer for generating a signal for reversing the reversible electric motor, and in response to a signal from the detection and sensing means, raising a movable support member that supports the suppressor via the timer. A pressing means release device comprising a pressing means for releasing the means from the surface of a material.