JPS6012655Y2 - Shear knife clamp device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a knife or cartridge clamping device that allows the knife and cartridge to be rapidly inserted and removed in order to shorten the blade change time in a shear that cuts strips after hot rolling and cold rolling. It is something.

1 and 2, 01 is a knife holder, 02 is a cartridge, 03 is a knife, 04 is a clamp member for the knife or cartridge, and 05 is a clamp lever that fits into the cartridge 02.

FIG. 1 shows a type in which a knife 03 is directly fastened to a knife holder 01 with a tightening bolt 04, which is a clamp member, but since the mounting location is generally a complicated place, the number of bolts is large.

This type had the disadvantage that it required a lot of time to install and remove.

In Figure 2, a knife 03, which has been tightened and fixed in advance outside the shaft frame, is inserted into the cartridge 02 into the shaft main body, and the clamp lever 05, which is supported by an eccentric shaft, is rotated by the clamp cylinder 04. Clamp lever 0
The tip of the clamp lever 05 is fitted into the fitting groove 02' of the cartridge 02 and then tightened by the cylinder 04, but the clamp lever 05 cannot be properly fitted into the fitting groove 02' with only the clamping cylinder 04. This has the drawback of requiring manual positioning operations each time.

The present invention eliminates the above-mentioned drawbacks, and is shown in Figures 3 to 6.
To explain the figures, 1 is an upper knife holder, 1' is a lower knife holder, 2 is a cartridge, 2' is a fitting groove,
3 is a knife, 4 is a clamp cylinder, 4' is a cylinder rod, and 5 is a clamp lever, which is rotatably attached to the tip of the cylinder rod 4'.

6 is a clamp lever support roller, 7 is a spring, 8 is a crankshaft, and 9 is a stopper for positioning when inserting the cartridge 2 into the shaft body 10 from the left side in FIG. 3 along the upper surface of the lower knife holder 1'. be.

11 is a drive device, 12 is a motor, the knife 3 is attached to the upper knife holder 1 and the lower knife holder 1' via cartridges 2, respectively, and the upper knife holder 1 is fixed to the main body 10; The lower knife holder 1' is moved up and down by a motor 12 via a crankshaft 8 and a drive device 11.

FIG. 5 shows a state in which the cartridge 2 with the knife 3 fixed thereon is clamped to the lower knife holder 1'.

The clamp lever 5 is provided with a spring 7 for regulating the movement of the clamp lever and a clamp lever supporting roller 6.

Now, when the cylinder rod 4' of the clamp cylinder 4 is moved in the direction a, the clamp lever 5 moves linearly by one dimension, and beyond that it is pulled by the spring 7 with the clamp lever support roller 6 as a fulcrum, so it moves rotationally. Then, the tip of the clamp lever 5 disengages from the fitting groove 2' of the cartridge 2 and moves to the 5' position.

Therefore, there is nothing to restrict the cartridge 2,
Freely and quickly insert the cartridge 2 into the knife holder 1'
It is possible to take out work from.

Inserting the cartridge 2 into the knife holder 1' is a reverse operation of the removal operation, but in advance, the knife 3 incorporated in the cartridge 2 is inserted into the stopper 9 provided in the knife holder 1' outside the shutter body 10. The position is determined by pushing in until it hits.

The positioned cartridge 2 connects the clamp lever to a clamp member such as a cylinder, and is provided with an elastic member such as a spring that rotates the clamp lever to fit into and disengage from the fitting groove, and further connects the clamp member and the clamp lever. This sharp knife clamp device is equipped with a clamp lever support roller that restricts the rotation of the clamp lever near the joint with the clamp lever. 1. When changing the blade, the clamp device that tightens the cartridge can be opened and closed in a short time. .

2. There is no need to manually operate the gland lever and clamp device.

3. Installation and removal can be done quickly and reliably.

It has excellent effects such as

[Brief explanation of drawings]

Figures 1 and 2 are conventional ones, Figure 1 shows a knife attached to a knife holder, Figure 2 shows a cartridge attached with a clamp device, and Figures 3 to 6 show the knife of the present invention. Figure 3 is the whole elevation, Figure 4 is A of Figure 3.
-A sectional view, FIG. 5 is a detailed view of the cartridge clamp mechanism, and FIG. 6 is a BB sectional view of FIG. 1.1': Knife holder, 2: Cartridge, 2': Fitting groove, 3: Knife, 4: Clamp cylinder, 4' Rainbow rod, 5: Clamp lever, 6: Clamp lever support roller, 7: Spring, 8: Stopper, 10: Main body.

Claims (1)

[Scope of utility model registration request] In a sharp knife clamp device configured such that the tip of the clamp lever fits into a rear fitting groove of a knife or a cartridge holding the knife, and the knife or cartridge is clamped to a knife holder, the clamp lever is connected to a cylinder or the like. In addition to being connected to the clamp member of
A clamp lever support that includes an elastic member such as a spring that rotates the clamp lever to fit into and disengage from the fitting groove, and that further restricts rotation of the clamp lever near a connecting portion between the clamp member and the clamp lever. A sharp knife clamp device characterized by being provided with a roller.