JPH0623294A - Chip transporting device - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the chips are curls such as steel, they are entangled with each other without causing a state in which they cannot be transported due to the clogging of the chips. While being forcibly unraveled, it can be continuously accumulated in a collection tank by an air suction / conveyance device. [Structure] The screw type chip crushers A and B are stacked in two steps, and the discharge port 7a of the upper side chip crusher A is connected to a loading hopper 5b of the lower side chip crusher B. As a result, the chips are forcibly disentangled while the chips are re-cut by the lower chip crusher B, and the chips are continuously accumulated in the collection tank by the air suction / conveyance device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip conveying device for cutting and collecting chips emitted from machine tools and the like.

[0002]

2. Description of the Related Art Generally, when cutting and collecting chips such as aluminum and steel from machine tools, etc.,
Up to now, the chips delivered from the chip conveyor of machine tools etc. are received by the hopper of each chip crusher, and the chips are cut by the fixed blade and the rotary blade in this chip crusher, and the cut chips are respectively cut. It is dropped into the trough of the screw feeder and temporarily stored.

Then, the internal screw conveyor is operated batchwise from a screw feeder in which a predetermined amount of cutting chips are accumulated in the trough, and the cutting chips are sent to the discharge port by the screw conveyor and collected by using an air suction transfer device. The means of accumulating in the tank has been taken.

[0004]

However, in the above-mentioned conventional chip collecting means, since the chips carried out from the machine tool are cut by the chip crusher and then dropped into the screw feeder, the screw feeder is used. The chips in the trough are finely cut by the chip crusher in the previous stage.

From this, when the object to be collected has a continuous curl shape like steel chips, when the screw conveyor in the screw feeder is operated to send out the chips, the chips are finely cut. The processed chips are agitated by the screw conveyor, and the chips become intertwined with each other in the trough.

For this reason, only the cutting chips in the vicinity of the screw conveyor are not sequentially sent one after another, but the whole cutting chips tend to be sent toward the discharge port. As a result, clogging occurs at the discharge part and the cutting chips are cut off. There was a drawback that the powder could not be conveyed.

[0007] Therefore, an object of the present invention is to provide a chip conveying device capable of continuously accumulating chips collected from a machine tool or the like in a recovery tank by an air suction conveying device while cutting the chips. is there.

[0008]

In order to achieve the above object, in the present invention, the screw feeder of the chip conveying device in the conventional means is replaced with a screw type chip crusher, and at the same time, these screw type chip crushers are used. Are arranged in a two-tier stack, and the discharge port of the upper chip crusher is connected to the loading hopper of the lower chip crusher.

[0009]

[Operation] As a result, the chips cut by the upper chip crusher are temporarily stored in the loading hopper of the lower chip crusher, from which the chips are batch-driven by the lower chip crusher. While untangling each other's entanglements, they are cut again and sent one after another to the discharge port, where they are continuously metered in a collection tank by an air suction transfer device.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

As shown in the accompanying drawings, in the chip conveying apparatus 1 according to the present invention, a screw type chip crusher A on the upper side and a screw type chip crusher B on the lower side, which have the same structure, are vertically stacked. It is composed by.

That is, these screw type chip crushers A, B have cylindrical casings 2a, 2b, and the respective casings 2a, 2b are mounted on the bases 4a, 4b by stays 3a, 3b, respectively. It is held via the bases 4a and 4b.

On top of the casings 2a, 2b are provided hoppers 5a, 5b for loading, and these hoppers 5a, 5b are screw chambers 6 in the casings 2a, 2b.
It is open over almost the entire length of a and 6b.

Discharge ports 7a and 7b are formed at the lower ends of the casings 2a and 2b, respectively, and one ends of the screw chambers 6a and 6b of the casings 2a and 2b are opened downward.

Upper and lower chip crushers A and B
Inside the screw chambers 6a and 6b, there are mounted a conveying mechanism which is the screw conveyors 8a and 8b and a known crash mechanism (not shown) including a fixed blade and a rotary blade.

These screw conveyors 8a and 8b are
The electric motors 9a and 9b arranged on the bases 4a and 4b are rotationally driven in a direction in which the chips in the hoppers 5a and 5b are conveyed toward the discharge ports 7a and 7b via the speed reduction mechanisms 10a and 10b.

On the other hand, the rotary blade of the crusher mechanism is also driven to rotate in association with the rotation of the screw conveyors 8a and 8b.

Then, the discharge port 7a of the upper chip crusher A is connected to the hopper 5b for loading the lower chip crusher B.
In the state of communicating with the upper side chip crusher A base 4
a is a loading hopper 5 in the lower chip crusher B
The chip crushers A and B are arranged in a two-tier stack by being mounted and fixed on the support piece 11 attached to the outer surface of b.

Further, in this state, the discharge port 7b of the lower chip crusher B is transferred to the recovery tank (not shown) via the air suction / conveyance device, and the gate valve 12 is provided on the way.
The communication is carried out by the transfer pipe 13 provided with.

Next, the operation will be described.

The tip of the chip conveyor 14 of the machine tool or the like faces the hopper 5a of the upper chip crusher A, and chips from the machine tool or the like carried out through the chip conveyor 14 are hopper 5a of the upper chip crusher A. receive.

During the work, the screw conveyor 8a of the upper chip crusher A is constantly driven to rotate, and the chips received by the hopper 5a are discharged by the screw conveyor 8a.
While sending to the a side, it is cut by the fixed blade and the rotary blade of the crash mechanism, and the lower chip crusher B from the discharge port 7a
It is dropped in the hopper 5b and temporarily stored.

Then, the lower chip crusher B is operated batchwise from the chip conveying device 1 in which a predetermined amount of chips are accumulated in the hopper 5b, and the chips in the hopper 5b are discharged to the discharge port 7b by the screw conveyor 8b. Gate valve 1 while sending out
2 is opened and accumulated in the recovery tank through the transfer pipe 13 by the air suction transfer device.

In this case, the chips in the hopper 5b are re-cut while the fixed blade and the rotary blade, which are the crash mechanism of the lower chip crusher B, loosen the entanglement of the chips, and are quantitatively discharged to the discharge port. It is forcibly sent out one after another and continuously accumulated in the collection tank by the air suction / conveyance device.

[0025]

As described above, according to the present invention, even if the chips are curled like steel chips, they are re-cut to the discharge port while loosening the entanglement of the chips. Therefore, it is possible to forcibly send out quantitatively, without causing clogging at the discharge port, and to continuously accumulate quantitatively in the collection tank by the air suction / conveyance device.

[Brief description of drawings]

FIG. 1 is a front view of a chip conveying device according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

[Explanation of symbols]

 A Upper-stage screw type chip crusher B Lower-stage screw type chip crusher 1 Chip conveying device 2a, 2b Casing 5a, 5b Input hopper 7a, 7b Discharge port 8a, 8b Screw conveyor 12 Gate valve 13 Transfer pipe 14 Chip conveyor

Claims (1)

[Claims] 1. A screw type chip crusher is provided with two upper and lower parts.
A chip transporting device characterized in that the chips are arranged in a stack and the discharge port of the upper chip crusher is connected to the loading hopper of the lower chip crusher.