JPH11254026A - Device for treating burr in continuous extruding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically and surely execute the burr treatment by guiding the burr produced at the time of continuously extruding into a crusher through a chute, crushing the burr to be a chip-state and carrying with a conveyor. SOLUTION: The burr 3 produced at the time of extruding a wire rod with a continuous extruding apparatus l is continuously transferred into the chute 4 through a rotary wheel part 2 and guided into the crusher 5 with the shooter 4 and the crushed chip-state burr 3 is carried with the conveyor 6. The shooter 4 is provided with ridge parts at both sides and the upper side so that the burr 3 does not drop and has some degree of an inclining angle so that the burr 3 can be dropped and shifted into the crusher 5 with the dead weight. The crusher 5 is provided with one pair of cuttings having plural rotary teeth 7 and rotated mutually in the inside direction, and an overload preventing function is arranged and at the time of overloading, the rotation of the rotary teeth 7 is once stopped. The carrying speed of the conveyor 6 is controlled so as to follow to the crushing speed of the burr with the crusher 5, and the ridges for preventing the drop of the crushed burr 3 are produced at both sides of the conveyor 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus for treating burrs generated by a continuous extruder.

[0002]

2. Description of the Related Art FIG. 3 is a plan view showing a conventional continuous extruder (machine) and a burr processing device attached thereto. FIG.
Is a front view thereof. Deburring device is shooter 2
0, a cutter 14, a drive motor 15 for driving the cutter 14, a conveyor 16, a conveyor drive motor 21 for driving the conveyor 16, and a transport box 17.

The continuous extruder 11 is a rotary wheel type continuous extruder, and 12 is a rotary wheel. Wire rod 19
Is extruded rightward in the drawing, and burrs 18 are generated along the leftward direction in the drawing.

[0004] With the operation of the continuous extruder 11, the drive motor 15 and the conveyor drive motor 21 are started. The burr 18 generated from the continuous extrusion device 11 extends by itself and comes into contact with the caterpillar 13. Then, the burr 18 is drawn between the caterpillar 13 and the shooter 20 due to the cooperative operation of the caterpillar 13 and the shooter 20, and is conveyed to the position of the cutter 14. The caterpillar 13
In the portion where the burr 18 is drawn in, the angle formed between the caterpillar 13 and the shooter 20 is made an acute angle so that the burr 18 is easily drawn in.

[0005] The cutter 14 is designed to move vertically by a drive motor 15.
The burr 18 transported to the position 4 is cut into chips by the cutter 14.

[0006] Next, the chipped burrs are conveyed by a conveyor 16 in a safe direction deviating at right angles from the extrusion line, and stored in a transport box (collection box) 17. These operations are performed automatically and continuously. When the burrs become full in the transport box 17, the transport box 17 is transported to another place by a lift or the like and processed.

The temperature of the burr 18 is about 350.degree.
Because of the high temperature of 0 ° C., caterpillar 13 and shooter 2
0, the cutter 14, the conveyor 16, and the transport box 17 are provided with heat-resistant measures.

[0008]

The conventional burr treatment apparatus for a continuous extruder has the following problems.

1. When a large amount of burrs 18 are generated in a short time, the burrs 18 are not completely retracted by the tracks 13 and accumulate between the burrs of the tracks 13 and the rotary wheel unit 12.

[0010] 2. When a large amount of burrs 18 are generated in a short time, even if the burrs 18 are completely retracted by the tracks 13, the burrs 18 are clogged between the tracks 13 and the shooters 20, and the operation of the tracks 13 stops.

3. Although the cutter 14 is designed to move up and down, the burrs 18 are continuously fed even while the cutter 14 is located on the lower side.
When the burrs 18 accumulate in the portion 4 and the burrs 18 are further clogged, the cutter 14 cannot deform the burrs 18 and is deformed.

4. When the large burrs 18 are generated, the same problems as those in the above-described 1 to 3 occur.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned drawbacks of the prior art and to provide a burr processing apparatus for a continuous extruder for automatically and reliably processing burr generated during continuous extrusion.

[0014]

In order to achieve the above object, the present invention provides a shooter for guiding burrs generated during continuous extrusion, a crusher for crushing burrs guided by the shooter, and a crusher for crushing the burrs guided by the shooter. And a conveyor for transporting crushed chip-shaped burrs.

The above-mentioned shooter is provided with a slope and the head space is open.

Further, the crusher is constituted by a pair of rotating teeth which rotate inward each other.

[0017]

FIG. 1 is a perspective view showing an embodiment of a burr treatment apparatus for a continuous extruder according to the present invention. The burr treatment device attached to the continuous extruder 1 includes a shooter 4, a crusher 5, and a conveyor 6. Burr 3
It emerges continuously from the horizontal rotary wheel part 2 of the continuous extrusion device 1. At the end of the conveyor 6, not shown,
A collection box (transportation box) is provided.

The shooter 4 is installed between the rotary wheel 2 of the continuous extruder 1 and the crusher 5, and reliably guides the burr 3 from the rotary wheel 2 to the crusher 5. The shooter 4 has edges on both sides and an upper side to prevent the burr 3 from falling. The installation angle of the shooter 4 with respect to the ground is set to a certain angle so that the burr 3 can drop and move to the crusher 5 by its own weight. Since the upper space of the shooter 4 is open, even if a large amount of burrs 3 are generated, problems such as accumulation and clogging do not occur. Similarly, no problem occurs even if the burr 3 is large.

The crusher 5 includes a cutter having a pair of rotating teeth 7 that rotate in a direction toward each other. The directions of rotation were mutually inward so that the burrs 3 were pulled in. The crusher 5 is provided with an overload prevention function, and when the overload occurs, the rotation of the rotary teeth 7 is temporarily stopped. After a certain period of time, the system is restarted. If an overload occurs again, such stop and restart operations are repeated. Also,
The crushing speed of the burr 3 is controlled to follow the burr generation speed from the continuous extrusion device 1. Even if a large amount of burrs 3 are generated in a short time or large burrs are generated, the crushing machine 5 can be crushed reliably because it has the pair of rotating teeth 7 as described above.

The conveyor 6 sends the burrs crushed into chips to a transport box (collection box). Since the conveyor speed of the conveyor 6 is controlled to follow the burr crushing speed of the crusher 5,
Burrs crushed into chips do not accumulate or clog on the conveyor 6 or in the crusher 5. Also,
Edges are provided on both sides of the conveyor 6 to prevent the burrs crushed into chips from falling. In addition, conveyor 6
May be any of a net shape, a pipe shape, and a finned shape.

FIG. 2 is a flowchart showing the above-described continuous operation. Burrs generated by the continuous extruder are guided to a crusher by a shooter, cut by the crusher, conveyed by a conveyor, and collected in a collection box (transport box).

[0022]

According to the burr treatment apparatus of the continuous extruder of the present invention, a shooter is provided which is inclined so as to drop and move by its own weight and has an open upper space, and a crusher which draws and cuts the guided burr. By providing the machine and the conveyor for transporting the crushed burrs, the following excellent effects are exhibited.

(1) Burr processing can be automated by surely guiding, cutting, and transporting burrs.

(2) The reliability of the burr treatment is improved.

(3) The burden on the operator can be reduced and danger can be prevented.

(4) The unmanned extrusion line can be used.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a burr treatment device of a continuous extruder according to the present invention.

FIG. 2 is a flowchart showing the operation of the apparatus of FIG.

FIG. 3 is a plan view of a burr treatment device of a conventional continuous extruder.

FIG. 4 is a front view of a conventional burr treatment device of a continuous extruder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Continuous extrusion apparatus 2 Rotating wheel part 3 Burr 4 Shooter 5 Crusher 6 Conveyor 7 Rotating teeth 11 Continuous extrusion apparatus 12 Rotating wheel part 13 Caterpillar 14 Cutter 15 Drive motor 16 Conveyor 17 Transport box 18 Burr 19 Wire rod 20 Shooter 21 Conveyor drive motor

Claims (3)

[Claims] 1. A shooter for guiding burrs generated during continuous extrusion, a crusher for crushing burrs guided by the shooter, and a conveyor for transporting chip-shaped burrs crushed by the crusher. A burr treatment device for a continuous extruder, characterized in that: 2. The burr treatment apparatus for a continuous extruder according to claim 1, wherein the shooter is provided with a slope and an upper space is opened. 3. The crushing machine according to claim 1, wherein said crushing machine has a pair of rotating teeth which rotate inward each other.
The burr treatment device of the continuous extruder according to the above.