JPS6117931Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a screw conveyor type discharge device.
In particular, the present invention relates to a screw conveyor type discharge device for transferring chips generated in machine tools.

A screw conveyor is used to dispose of chips generated in machine tools, and is discharged into a tank outside the machine. However, when the tank is filled with chips, the screws catch the chips, causing the screw conveyor to stop and shut down the drive source. There were drawbacks such as overload and failure.

To deal with this, it is possible to remove the chips by temporarily stopping the screw conveyor and removing the chips accumulated in the tank, or by installing a separate device to push out the chips in the horizontal direction, but the former method is not efficient. In the latter case, the problem remains that an additional actuator is required, resulting in high equipment costs.

The present invention solves the above-mentioned problem, and removes conveyed materials such as chips that fall from the discharge hole of the discharge groove.
The object of the present invention is to provide a screw conveyor type discharge device that can prevent chips from getting caught in the screw by transferring them in the horizontal direction without providing a separate actuator.

The object of the present invention is achieved by providing a conventional screw conveyor type discharge device with a baffle plate that blocks the screw groove along the axis of the screw located above the discharge hole.

Hereinafter, one embodiment of the screw conveyor type discharge device according to the present invention will be described based on the drawings.

The screw conveyor 1 consists of a shaft 2, a screw 3 in the form of spiral blades provided on the shaft 2, and a semi-cylindrical delivery groove 5 covering the lower part of the screw 3. The forward end of the shaft 2 is supported by a bearing, and a stopper 7 provided with a bearing extends downward. This Screw 3 is
Due to space constraints, it is provided close to the stopper 7.

The carry-out groove 5 has a carry-out hole 6 formed at the bottom near the forward end, and when the shaft 2 rotates, chips are sent along the screw groove 4 and fall from the carry-out groove 6 into the tank 8. .

The configuration up to this point is the same as the conventional technology, and conventionally, when chips accumulate in the tank 8 and reach near the stopper 7, the chips are caught between the stopper 7 and the screw 3, and the screw conveyor 1 stops. A problem occurred.

In the present invention, a screw groove 4 is formed between the screws 3 along the axis 2 located above the discharge hole 6.
The disadvantages of the prior art described above are solved by providing a wall board 9 to block the above-mentioned problems. It is desirable that the ground plate 9 be provided over one or more pitches of the screw 3 in order to block the screw groove 4 without leaving any chips.

By providing the stopper plate 9, even if chips accumulate in the tank 8 near the stopper 7, the chips sent along the groove 4 will be blocked by the stopper plate 9 and will be discharged horizontally. It will not get caught between Screw 3.

In this embodiment, the case where the chips are discharged into the tank 8 has been described, but a discharge path may be provided below the discharge hole 6 so that the chips are discharged horizontally at a right angle to the shaft 2. In this way, the chip discharge direction can be changed without providing a separate actuator. Also, although the shim plate 9 is a flat plate provided parallel to the shaft 2, it is possible to change the chip discharge direction by inclining it with respect to the shaft 2 or by making it curved.

In this embodiment, the explanation has been given by taking as an example the discharge of chips generated by a machine tool, but the present invention is not limited to this, and any material that can be transported by a screw conveyor can be applied.

As described above, the screw conveyor type discharge device according to the present invention does not cause the screw conveyor to stop and malfunction due to biting of conveyed items, and it is also possible to avoid using a separate drive equipment This has the effect that the discharge direction of the conveyed object can be changed to the horizontal direction without providing any.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a view taken along the - arrow in FIG. 1... Screw conveyor, 2... Shaft, 3... Screw, 4... Screw groove, 5... Carrying out groove, 6...
...Discharge hole, 7...Stopper, 9...Jiyama board.

Claims (1)

[Scope of utility model registration request] It is provided on a screw conveyor consisting of a long screw in the shape of a spiral blade arranged in a substantially horizontal direction and a semi-cylindrical delivery groove that covers the lower part of the screw, and extends downward at the forward end of the screw conveyor. In a discharge device having a stopper provided therein and a discharge hole formed at the bottom of the discharge groove from the stopper in the axial direction of the screw, the discharge hole extends outward in the radial direction from the axis of the screw located above the discharge hole. It is characterized by being provided with a baffle plate which extends and whose outer periphery protrudes toward the tank side beyond the lower end of the carry-out groove, and which blocks the screw groove over a length of at least one pitch or more of the screw along the axis of the screw. Screw conveyor type discharge device.