JPH1029130A - Chip removal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate generation of defectively finished works caused by chips. SOLUTION: A device for removing chips comprises an air jet part 20 for blowing air to a work 60, an actuator 6 for reciprocating the air jet part 20 facing a work 60, and a supporting part 10 for supporting the actuator 6. By virtue of these parts, air jet from the air jet part 20 moves reciprocally on the work 60, chips tangled in the work 60 can be removed effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip removing device for removing chips generated by shearing by a press line.

[0002]

2. Description of the Related Art Conventionally, as an automatic press processing line, a press line in which several presses are arranged in a straight line to perform multi-step processing such as shearing and bending is known. More recently, a compound processing line in which a tapping machine, a milling machine, or the like is installed between press machines to perform a cutting process before punching a product is also known.

[0003] The work is fed between the steps in the press line without cutting the work from the material, and is carried out as a coil material or a fixed length material. This is because if the work is separated from the material, positioning and alignment in the next step become difficult.

[0004] Shearing by a press machine includes punching,
There are drilling, shearing, cutting, edge cutting, edge finishing, etc.
A number of chips are generated by such processing. Further, a large number of chips are also generated by cutting with a tapping machine, a milling machine, or the like. The larger one of these is dropped into a chip pit such as a press machine and discharged. In addition, a small object that is difficult to fall into the chip pit has been blown away by an operator.

Japanese Utility Model Laid-Open Publication No. 55-160756 discloses a device in which a workpiece is passed between a roller and a brush to collect chips with a brush and drop the chips on a chip tray.

[0006]

However, in the above-mentioned conventional method of blowing off chips by air blow, a workpiece is fed between steps in a press line as a coil material or a fixed length material. In addition, there is a problem that the chips blown off by the air blow are entangled with the product portion of the coil material or the fixed-length material, and are sent to the next process as they are to be processed, resulting in defective products.

Further, as disclosed in Japanese Utility Model Laid-Open No. 55-160756, there is a problem in that chips cannot be completely removed with a device using a brush.

Accordingly, an object of the present invention is to provide a chip removing device capable of eliminating the generation of defective products due to chips.

[0009]

In order to achieve the above object, according to the present invention, there is provided an air ejection section for ejecting air toward a workpiece, and a reciprocating movement of the air ejection section with respect to the workpiece. A chip removing device having an actuator for causing the chip to rotate and a support portion for supporting the actuator.

[0010] In the chip removing apparatus of the present invention having the above-described structure, the chip material is blown off by air when the coil material or the fixed-length material as the workpiece passes through the air ejection portion. At this time, the chips can be effectively removed by reciprocating the air ejection portion by the actuator, so that the probability of chips being left behind can be reduced.

[0011] Further, it is possible to provide the air outlets of the air outlets vertically above and below the workpiece, in this case, not only is the removal of chips more effectively performed, but also from one direction. It is possible to prevent the coil material and the fixed-length material from being bent due to the blowing of air, thereby eliminating the influence on the processing accuracy.

[0012]

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

First, the overall configuration of a processing line provided with the chip removing device of the present invention will be described with reference to FIG.

As shown in FIG. 5, the processing line includes a first press 51, a second press 52, a cutting device 53, a chip removing device 100, a third press 54, and a scrap cutter 5.
5. In this configuration, the air feeders 56 are sequentially arranged on a straight line. The air feeder 56 sends out and moves the work piece 60 of the hoop material that has not been cut off, so that the work piece 60 passes through the first press machine 51, the second press machine 52, and the cutting device 53 in this order, and in turn. It is processed and finally cut into a product shape by a third press machine 54. The scrap cutter 55 finely cuts and collects the remaining hoop material.

At this time, the cutting device 53 and the third press 5
By arranging the chip removing device 100 of the present invention between 4, the chips generated by the processing of the first press 51, the second press 52, and the cutting device 53 can be removed from the workpiece 60. Thereby, it is possible to prevent the chips from being processed by the third press machine 54 while being entangled with the workpiece 60, and to prevent the occurrence of defective products due to the chips.
The detailed configuration of the chip removing device 100 of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the chip removing device of the present invention
It consists of a base part 10, a brush part 80, an air block part 20, and an actuator part. The actuator section is arranged to make the air block section 20 and the brush section 80 move periodically. The actuator section includes an air cylinder 6 and a switching valve section 50 that controls supply of air to the air cylinder 6.

The base 10 comprises a base plate 1a and a guide block 1b.

The brush portion 80 is composed of a pig-hair brush 9 arranged to face up and down with the workpiece 60 interposed therebetween, and a mounting plate 8 to which the upper and lower brushes 9 are fixed, respectively. It is fixed to the air block 20.

The air block 20 includes blow-off blocks 2c and 2d and left and right side plates 2 supporting these from the side.
a, 2b and a linear guide 2e provided in the lower blowing block 2d. The blowout blocks 2c and 2d are fixed to the side plates 2a and 2b so as to face each other with an interval so that the workpiece 60 can pass between them.

As shown in FIGS. 1, 2 and 3, inside the blowout blocks 2c and 2d, a main trunk flow passage 2f having a columnar cavity provided along the longitudinal direction and a main trunk passage 2f are provided. A blowing flow path 2g for blowing out air is formed by branching vertically from 2f. Two main flow paths 2f are formed in each of the blowout blocks 2c and 2d,
Each of the blowout channels is formed in a number of 10 in each of the blowout blocks 2c and 2d. The outlets of the outlet channel 2g are provided on the surfaces facing the outlet blocks 2c and 2d, respectively, and are configured to blow air from above and below to a workpiece 60 passing therebetween. In addition, the size of the outlets is about φ1, and the outlets are arranged at intervals in a range corresponding to the width of the workpiece 60 so that air can be blown over the entire width of the workpiece 60. Also,
An air joint 7 for supplying air from the outside to the main trunk channel 2f of the blowout blocks 2c, 2d is attached to the side plate 2b.

The air cylinder 6 is a single-acting type, and the tip of a rod 6c (FIG. 4), which is a movable portion, is fixed to the air block portion 20. The body of the air cylinder 6 is fixed to the guide block 1b.

The switching valve unit 50 is provided with a switching valve 5 for switching the direction of air ejection by operating the switching lever 4.
And a dog 3 for mechanically turning on and off the switching lever 4. The switching valve 5 is attached to the base plate 1a. The dog 3 is fixed to the lower blowing block 2d. The dog 3 is provided with a projection 3 a for pushing up the switching lever 4.

An output port 5a of the switching valve 5 is connected to a connection port 6a of the air cylinder 6 by a hose (not shown).
Supply air to this. Further, the supply port 5 of the switching valve 5
As shown in FIG. 4, air is supplied from an air source 30 to the air joint 7 of the side plate 2b and the side plate 2b through a solenoid valve 40.

Next, the operation of the chip removing device according to the present invention will be described.

The chip removing apparatus starts its operation in response to a signal from a controller provided on the processing line shown in FIG. 5 or a controller such as a sequencer provided independently. That is, when an operation start signal is input to the solenoid valve 40 of FIG. 4 from a controller, a controller, or the like, the solenoid valve 40 is changed from the block 40a to the block 40b of FIG.
And the pressure is 5 kgf / c from the air source 40.
m ² air is supplied to the supply port 5 b of the switching valve 5.
In the initial state, the projection 3 of the dog 3 is
a, the switching lever 4 is pushed up, and the switching valve 5 is in the ON state, and the switching valve 5 is in the operation of the block 50b in FIG. 4, so that air is blown out from the output port 5a of the switching valve 5. It is supplied to the connection port 6a through a hose (not shown). The air joint 7 has a solenoid valve 4
Air is supplied directly from 0.

The air supplied to the air joint 7 passes through the main passage 2f and the outlet passage 2g of the upper and lower outlet blocks 2c and 2d, and is ejected from above and below the workpiece 60 from the outlet.

On the other hand, the air supplied to the connection port 6a moves the rod 6c of the air cylinder 6. Since the rod 6c of the air cylinder 6 is attached to the air block 20 as described above, the movement of the rod 6c causes the air block 20 and the brush 80 to move along the linear guide 2e in FIG. It moves on the base 10 in the A direction.

At this time, the dog 3 fixed to the lower blowing block 2d also moves in the direction A in FIG.
The switching lever 4 is disengaged from the position of the protrusion 3a of the dog 3 (the state in FIG. 1), and the switching lever 4 is turned off.

As a result, the switching valve 5 switches to the operation of the block 50a in FIG. 4, and the supply port 5b is closed. As a result, the supply of air to the air cylinder 6 is stopped, and the air in the air cylinder 6 flows backward from the connection port 6a to the switching valve 5, and is released to the atmosphere through the air vent 5c of the switching valve 5. . Along with this, the rod 6c of the air cylinder retreats by the force of the spring 6b (FIG. 4) in the air cylinder 6, and the air block 2
0 and the brush portion 80 move along the linear guide 2e in the direction B in FIG.

As a result, the projection 3a of the dog 3 moves again to the tip of the switching lever 4, and the switching lever 4
To turn on the switching valve 5. Therefore, the switching valve 5 switches to the operation of the block 50b in FIG. 5, and the air is supplied to the air cylinder 6,
The air block unit 20 and the brush unit 80 move in the direction A again.

The solenoid valve 40 is activated by a signal from the controller.
While the block 40a in FIG. 4 is not closed, the reciprocating motion of the air block unit 20 and the brush unit 80 of the chip removing device in the AB direction is repeated. Since the AB direction is the width direction of the workpiece 60, the air continuously ejected from the upper and lower blowing blocks 2c and 2d of the air block portion 20 and the brush 9 are periodically arranged in the width direction of the workpiece 60. Due to repeated reciprocating movements. Thus, the chips entangled with the workpiece can be first scraped off by the reciprocating brush and then blown off by the reciprocating air blow, so that the chips can be reliably removed.

Further, in the chip removing apparatus of the present embodiment, since the brush and the air outlet are provided above and below the workpiece, it is possible to prevent the workpiece from bending due to the brush contact and the air ejection. At the same time, chips can be removed more effectively.

In the chip removing device according to the present embodiment,
Chips are removed by both the brush and the air ejection configuration, but the brush is not necessarily provided, and the chips can be reliably removed only by the air ejection configuration.

Further, as described above, the chip removing device of the present embodiment has a simple structure that can be driven only by air by using an air cylinder as an actuator. Therefore, there is no need to prepare a new drive source in the processing line, and the compressed air that has been used conventionally can be used, so that it is easy to introduce the compressed air into the conventional processing line.

In this embodiment, the air whose supply is turned on and off is supplied to the air cylinder 6 by the switching valve section 50, and the air is continuously supplied to the air block section 20 from the solenoid valve 40. Therefore, the air block part 2
Numeral 0 denotes a configuration for continuously ejecting air. However, the present invention is not limited to this, and a configuration in which air from the switching valve 50 is supplied to the air cylinder 6 and the air block unit 20 is also possible. In this case, the air can be ejected only while the air block unit 20 is moving in the direction A.

[0036]

As described above, according to the present invention, chips can be reliably removed with a simple device, so that the occurrence of defective products can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a chip removing device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the chip removing device of FIG. 1;

FIG. 3 is a sectional view of the chip removing device of FIG. 1;

FIG. 4 is a block diagram for explaining control of supply of air to an air cylinder 6 of the chip removing device of FIG. 1;

FIG. 5 is a block diagram showing an embodiment of a processing line provided with the chip removing device of the present invention.

[Explanation of symbols]

 1a: Base plate 1b: Guide block 2a, 2b: Side plate 2c: Upper outlet block 2d: Lower outlet block 3: Dog 4: Switching lever 5 ...・ Switching valve 5a ・ ・ ・ Output port 5b ・ ・ ・ Supply port 6 ・ ・ ・ Air cylinder 7 ・ ・ ・ Air joint 8 ・ ・ ・ Mounting plate 9 ・ ・ ・ Brush

Claims (9)

[Claims] An air ejection section for ejecting air toward a workpiece, an actuator for reciprocating the air ejection section with respect to the workpiece, and a support section for supporting the actuator. A chip removing device characterized by the above-mentioned. 2. The chip removing device according to claim 1, wherein the air outlets of the air jetting portion are respectively arranged at positions facing each other across the workpiece. 3. The chip removing device according to claim 1, wherein a direction in which the actuator reciprocates the air ejection portion is parallel to a main plane of the workpiece. 4. The air outlet according to claim 1, wherein a plurality of outlets of the air outlet are arranged side by side, and a length in which the outlets are arranged corresponds to a width of the workpiece. Characterized chip removal equipment. 5. The chip removing device according to claim 1, wherein the actuator has an air cylinder and a switching valve for periodically turning on and off the supply of air to the air cylinder. 6. The switching valve according to claim 5, wherein the switching valve has a switching lever for turning on and off, and the switching lever is connected to the air ejection portion, and is turned on and off by a reciprocating motion of the air ejection portion. A chip removing device. 7. The apparatus according to claim 1, further comprising a brush portion arranged such that a bristle tip comes into contact with the workpiece, wherein the brush portion is provided before the air of the air ejection section is blown on the workpiece. The chip removing device is arranged at a position in contact with the workpiece, and the brush portion is reciprocated by the actuator in conjunction with the air ejection portion. 8. A chip removing device according to claim 7, wherein said set of workpieces is arranged at a position facing each other across said workpiece. 9. A plurality of processing machines arranged on a straight line, a workpiece moving section for sending and moving a continuous workpiece on the straight line, and a plurality of workpieces sequentially processed by the plurality of processing machines. In a processing line having a cutting machine for cutting, a chip removing device is arranged between the plurality of processing machines, and the chip removing device is an air ejection unit for ejecting air toward a workpiece. A processing line, comprising: an actuator for reciprocating the air ejection portion with respect to the workpiece; and a support portion for supporting the actuator.