JPS582515Y2 - Hetsudano Kosoku Seksetsudanouchi - Google Patents

Description

[Detailed description of the invention] The present invention relates to a header restraint cutting device, and its purpose is to be able to transfer the cut pieces together with the shear slide to the next processing station, and to improve the cutting precision button and the precision of the final product. Furthermore, it is an object of the present invention to provide a header restraint cutting device which prevents cut pieces from dropping during transfer of cut pieces.

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

A shear slide 3 is slidably provided on the slide surface 2 of the main body 1, and a half cutter 4 is bolted to the shear slide 3.

Reference numeral 5 denotes a rod that is moved up and down by a rotating shaft in the chassis slide drive gear box, and the up and down movement of this rod 5 swings a lever 7 that is pivotally mounted on a shaft 6 that is fixed to the chassis slide box.

The swinging end of the lever 7 is connected via a turnbuckle 8 to a yoke 10 that reciprocates along a support shaft 9, and the yoke 10 has a first end slidably inserted into a guide hole 11.12. 20th
13 and 14 are fixed respectively.

Reference numeral 15 denotes a bracket fixed to the chassis slide 3. A rod 16 is fitted into the bracket 15 so as to be able to reciprocate.A lock plate 17 and a plate 18 are fitted into the rod 16. plate 18
An elastic body 19 such as urethane rubber is provided between the rock plate 17 and the tenth rod 13.

Further, 20 turnbuckles are pivotally attached to this rod 16, and the turnbuckle 20 is connected to the chassis slide 3 by a pin 2 via a toggle mechanism 23 consisting of a lever 21 and a link 22.
4, and the clamp piece 25a of the clamp lever 25 faces the material 26 supplied to the half cutter 4.

27 is an air cylinder provided between the bracket 15 and the plate 18, and 28 is a lock piece pivotally connected to the bracket 15 with a pin 29. This lock piece 28 is connected to the first.
The 20th lock position 30, 31 is provided, and the spring 32
0 lock position 31 The lock plate 17 is biased and held so as to engage with the lock plate 17.

Reference numeral 33 denotes a plate cam fixed to the 20th bolt 14, and the first and second cam surfaces 35.33 are in equal contact with the pin 34 of the lock piece 28.
It is equipped with 36.

Next, the operation will be explained.

When the rod 5 is raised from the state shown in FIG. 1 and the lever 7 is swung to the imaginary line position, the yoke 10 returns to the imaginary line position. The 20th node 13.14 slides to the left.

For this purpose, the rod 16 is slid to the left via the plate 18 by the air cylinder 27, and the clamp lever 25 is rotated upward via the toggle mechanism 23 to release the clamp on the material 26.

(The state shown in FIG. 3) From this state, the material 26 is fed by a predetermined distance, and then the rod 5 is lowered and the yoke 10 is slid to the right via the lever 7.

When the yoke 10 slides to the right, the tenth bolt 13 slides to the right, and lock plate 17, elastic body 19, and plate 1
8 to slide the rod 16 to the right.

When the rod 16 is slid to the right, the clamp lever 25 is rotated via the toggle mechanism 23, and the material 26 is clamped by the clamp piece 25a.

(See Figure 4) At this time, the lock plate 17
9 is compressively deformed and fixed at the 20th locking position 31 of the lock piece 28, and the material 26 is strongly clamped via the toggle mechanism 23 by this compression reaction force.

The material is cut in this state, and the cut pieces are strongly clamped and supported by the half cutter 4 and the clamp piece 25a.

When the cutting is completed, the shear slide 3 is slid to the right by a mechanism not shown.

When the chassis slide 3 is slid to the right, the 10th slide 13
All members A on the right side of the contact surface between the end face of the lock plate 17 and the lock plate 17 move to the right.

For this purpose, the cut pieces are strongly clamped and
It will be transported to a subsequent processing station such as a station.

(See FIG. 5) At this time, the cut pieces arriving at the processing station must be held loosely until the clamps are removed and they enter the die.

Therefore, when the chassis slide 3 arrives at the next processing station, the rod 5 is raised and the yoke 10 is moved to the left via the lever 7.

When the yoke 10 moves to the left, the 20th rod 14 moves to the left, and at the same time, the plate cam 33 moves to the left.

When the plate cam 33 moves to the left, the first cam 35 moves to the bin 34.
The lock plate 17 moves to the tenth lock position 30 as the lock piece 28 moves downward against the spring 32.

When the lock plate 17 moves to the tenth lock position 30, the amount of compressive deformation of the elastic body 19 decreases, and the clamp lever 25
The clamping force is significantly reduced and the cut piece is held in place.

Then, when the plate cam 33 further moves to the left, the second cam 3
6 contacts the pin 34 and further rotates the lock piece 28 downward, so the lock plate 17 is removed from the tenth lock position 30, and the compressive force of the elastic body 19 becomes zero, so the air cylinder 27 moves the plate 18. The rod 16 is moved to the left through the clamp lever 25, and the clamp lever 25 is rotated upward to the unclamped state, and the cut piece is completely opened.

(See Fig. 6) Since the present invention is configured as described above, the cut piece can be transferred to the next processing station together with the shear slide 3, and the clamp lever 2 can be moved by the elastic force of the elastic body 19.
The clamping force of 5 can be increased, cutting accuracy is improved, and the accuracy of the final product is also significantly improved.

In addition, since the clamping force can be increased, the cut pieces will not be dropped during transfer.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, FIG. 2 is a partially cutaway front view of the main parts thereof, and FIGS. 3 to 6 are explanatory views of its operation. 3 is a chassis slide, 4 is a half cutter, 11 is a rod,
16 is a rod, 19 is an elastic body, 23 is a toggle mechanism, 25
is the clamp lever, and 26 is the material.

Claims (1)

[Scope of utility model registration request] A clamp lever 25 is provided on a shear slide 3 which is equipped with a half cutter 4 and is reciprocated between a cutting position and a next processing station position.The clamp lever 25 is connected to a rod 16 via a toggle mechanism 23, and the rod 16 is A header restraint cutting device characterized in that it is linked to a rod 13 that is reciprocated via an elastic body 19.