JP2000024726A - Die cleaner for turret punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a die cleaner for a turret punch press which does not impede the automatic operation, requires no manual maintenance, eliminates generation of back flaws, dents, etc., improves the maintenance of the quality, increases the rate of operation, and improves the productivity. SOLUTION: In a turret punch press P, a drive gear 2 is externally fitted to an outer circumference of the side of a lower turret 1, a brush hold arm 6 in which brushes 5 are implanted downwardly in a radial direction around a rotary shaft 4 is mounted on the rotary shaft 4 of a driven gear 3 to be driven in a circumferential contact with the drive gear 2 so that a tip of the brushes 5 is brought into contact with a die 7 of the lower turret 1 to effect the cleaning, the rotary shaft 4 of the driven gear 3 is eccentrically arranged from a punch center 8 to constitute a rotary brush 9, and the cleaning effect is functioned in a constantly simultaneous manner during the machining operation in an interlocking manner with the rotation of the turret without any self-rotating power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turret punch press die cleaner for removing scraps such as scraps and so-called whiskers generated during sheet metal processing by a turret punch press.

[0002]

2. Description of the Related Art This type of cleaner is disclosed in Japanese Patent Laid-Open No. 10-7 / 1998.
As is known from Japanese Patent No. 6325 and the like, there is an example in which a device is provided which rotates a brush between upper and lower turrets and removes scraps such as scraps and whiskers remaining on a die.

[0003]

However, in the above-mentioned conventional example, the locus of rotation of the brush is overlapped in the turret, so that scraps and the like remain on the turret around the die, and the scrap is placed on the die. Etc. are left,
If the back surface of the work is scratched, dents may occur and the quality of the product may deteriorate, and if scraps enter the mechanism, the machine must be stopped and maintenance such as manual cleaning is required. In addition, problems such as a decrease in the operation rate due to the stoppage of the automatic operation and a decrease in the productivity due to the stoppage of the processing occur.

Further, in the conventional example, there is a problem that a driving source for rotating the brush is required, which leads to an increase in cost.

The present invention has been made by paying attention to the above points, and does not hinder automatic operation, does not require manual maintenance, eliminates back scratches, dents and the like, and improves quality maintenance. It is an object of the present invention to provide a turret punch press die cleaner capable of increasing an operation rate and improving productivity.

[0006]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) In a turret punch press,
The lower turret is provided with a brush hold arm in which a brush is radially implanted radially around the rotation axis on a rotation shaft of a driven gear which is externally fitted with a drive gear on the outer periphery of the side surface of the lower turret and driven by being in contact with the drive gear. The brush is mounted so that the tip of the brush comes into contact with the brush so that the brush can be cleaned, and the rotating shaft of the driven gear is eccentrically arranged from the punch center to constitute a rotating brush, which does not require rotation power and interlocks with the rotation of the turret. A turret punch press die cleaner characterized in that a cleaning action can always be performed in parallel with a processing operation.

(2) In a turret punch press,
A drive gear is externally fitted on the outer periphery of the side surface of the lower turret, and a brush hold arm in which a brush is radially implanted around the rotation shaft on the rotation shaft of the driven gear that is driven by being in contact with the drive gear is attached to the lower turret. The tip of the brush comes in contact with the brush so that it can be cleaned, and a suction nozzle is provided along with the brush with a suction port facing downward, and a suction cleaning function by the suction nozzle is added to rotate the driven gear. The rotating brush is constructed by arranging the shaft eccentrically from the punch center, and the cleaning function can be performed at the same time as the machining operation in conjunction with the rotation of the turret without the need for rotation power. Turret punch press die cleaner.

(3) The turret punch press according to any one of the above (1) or (2), wherein the brush hold arm is formed of a circular plate and at least one or more rows of brushes are provided. Die cleaner.

(4) A plurality of the suction nozzles are intermittently arranged between the implanted brushes, and a sweeping cleaning function by the brush and a suction cleaning function by the suction nozzle cooperate with each other. Turret punch press die cleaner.

(5) The rotating shaft of the rotating brush is arranged at a position eccentric to the axis of the turret and outside the turret region, and the die and the scraps on the lower turret are reliably discharged outside the machine. The turret punch press die cleaner according to any one of (1) and (2), wherein the die cleaner is configured to intermittently move out of the machine.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

FIG. 1A is a plan view showing a configuration of a die cleaner of a turret punch press according to the present invention, and FIG. 1B is a side view showing a configuration using only a brush.
FIG. 2 (c) is a partially cutaway side view when a brush and a suction nozzle are used together, FIG. 2 (a) is a side view showing a state where a brush is implanted in a brush hold arm, and FIG. 3 (a), 3 (b) and 3 (c) are a plan view and a side view in the case where an intermediate gear is interposed.

Referring to the drawings, in a turret punch press P, an upper turret 13 on which a plurality of punches 14 are mounted and a lower turret 1 on which a plurality of dies 7 are mounted are mounted via a motor M, a sprocket, and a chain. By rotating synchronously, a desired punch 14 and die 7 are indexed to a processing position (punch center) 8 immediately below a ram (not shown), and the work of the punch 14 and die 7 (not shown) is performed by the operation of the ram. Is to be processed.

In the turret punch press P, a driving gear 2 is externally fitted on the outer periphery of the side surface of the lower turret 1, and a brush 5 is rotated downward on a rotating shaft 4 of a driven gear 3 which is driven in contact with the driving gear 2. The brush turret 1 is radially implanted around the center 4 and is formed of a circular plate.
The tip of the brush 5 comes in contact with the brush 5 so that the tip of the brush 5 can be cleaned, and a plurality of suction nozzles 10 are intermittently arranged between the brushes 5 provided with the suction nozzles 10 in a downward direction in parallel with the brush 5; A suction cleaning function by the suction nozzle 10 is added, and the rotating shaft of the driven gear is eccentrically arranged from the punch center to constitute a rotating brush 9, and the sweeping cleaning function by the brush 5 and the suction cleaning function by the suction nozzle 10 cooperate. The cleaning operation can be performed at the same time as the processing operation in conjunction with the rotation of the turret without the need for rotation power. Further, the rotating shaft 4 of the rotating brush 9 is connected to the turret shaft. The brush 5 is arranged at a position eccentric to the center and outside the turret region, reliably discharges the scraps on the die 7 and the lower turret 1 to the outside, and the brush 5 moves intermittently outside the machine. A.

As for other reference numerals, 11 is a rotary joint, and when a suction nozzle 10 is provided in addition to the rotary brush 9, the suction nozzle 10 communicates with the rotary brush 9 to suck scraps from above the lower turret by a suction and exhaust operation. The rotating shaft 4 and the brush hold arm 6 formed by a circular plate are rotatable via the rotary joint 11 in conjunction with the rotation of the turret while being discharged out of the system.

The operation will be described based on the above configuration.

When the automatic operation is started by the turret punch press P, the lower turret 1 and the upper turret are also rotated synchronously by the timing chain, and the work is processed at the punch center 8. At this time, the driven gear 3 rotates in conjunction with the rotation of the drive gear 2 fitted on the outer peripheral surface of the lower turret 1, and the directly connected rotating shaft 4
At the same time, the brush hold arm 6 of the rotating brush 9 rotates, and the brush 5 implanted downward on the lower surface of the brush hold arm 6 draws an arc from the outer peripheral portion of the lower turret 1 toward the inner side. 1 and the upper surface of the die 7 and the periphery thereof, or sweeping and suction cleaning, discharging scraps from the upper surface of the lower turret 1 and the die 7, suction and discharge, and then the brush 5 and the suction nozzle which have completed the above cleaning operation Reference numeral 10 designates the rotary shaft 4 of the rotary brush 9 disposed at a position eccentric to the axis of the turret and outside the turret region. The turret 1 moves out of the machine via the outer periphery.

When a suction nozzle 10 is provided, a rotary joint 11 is interposed between the brush hold arm 6 and the rotary shaft 4 so that the suction nozzle 10 performs a suction / discharge operation of scraps. At the same time, the brush hold arm 6 can rotate while cleaning the upper surfaces of the lower turret 1 and the die 7.

Accordingly, it is possible to surely remove the scraps attached to the upper surface of the lower turret 1 and the upper surface of the die 7.

As shown in FIGS. 3 (a), 3 (b) and 3 (c), by interposing an intermediate gear 12 between the driving gear 2 and the driven gear 3, the driving gear 2 and the driven gear 3 The brush 5 implanted in the brush hold arm 6 moves in the direction opposite to the moving direction of the lower turret 1 because the brush 5 is rotated in opposition, and remains on the upper surface of the lower turret 1 and the die 7. Scraps can be eliminated.

Other power transmitting means include a structure using a chain and a sprocket, a structure using a timing belt and a timing pulley, and a material having a large friction coefficient such as urethane rubber or resin instead of the driven gear. The configuration may be such that the used roller abuts on the outer peripheral surface of the lower turret and is driven to rotate.

Further, instead of intermittently disposing the suction nozzles between the brushes, a brush hold arm in which brush rows and suction nozzle rows are alternately arranged may be used.

[0024]

According to the present invention, automatic operation is not hindered, no manual maintenance is required, the occurrence of back flaws, dents and the like is eliminated, the quality maintenance is improved, the operation rate is increased, and the productivity is improved. The effect that improvement can be achieved is exhibited.

[Brief description of the drawings]

FIG. 1 (a) is a plan view showing a configuration of a die cleaner of a turret punch press according to the present invention, FIG. 1 (b) is a side view showing a configuration using only a brush, and FIG. 1 (c) shows a brush and a suction nozzle. Partially broken side view when used together

FIG. 2A is a side view showing a state where a brush is implanted in a brush hold arm, and FIG. 2B is a vertical sectional side view in a case where a brush and a suction nozzle are provided in the brush hold arm.

FIGS. 3A, 3B and 3C are plan and side views with an intermediate gear interposed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower turret 2 Drive gear 3 Follower gear 4 Rotary shaft 5 Brush 6 Brush hold arm 7 Die 8 Punch center 9 Rotary brush 10 Suction nozzle 11 Rotary joint 12 Intermediate gear 13 Upper turret 14 Punch P Turret punch press

Claims (5)

[Claims] In a turret punch press, a driving gear is externally fitted to the outer periphery of a side surface of a lower turret, and a brush is radially formed on a rotating shaft of a driven gear which is driven in contact with the driving gear in a downward direction around the rotating shaft. The implanted brush hold arm is mounted so that the brush of the lower turret can be cleaned by contacting the tip of the brush with the tip of the brush, and the rotating shaft of the driven gear is eccentrically arranged from the punch center to constitute a rotating brush. A turret punch press die cleaner characterized in that the cleaning action can always be performed in parallel with the processing operation in synchronization with the rotation of the turret. 2. In a turret punch press, a drive gear is externally fitted to the outer periphery of the side surface of a lower turret, and a brush is radially formed on a rotation shaft of a driven gear that is circumferentially in contact with and driven by the drive gear, with the brush facing downward around the rotation shaft. The implanted brush hold arm is mounted so that the brush of the lower turret can be cleaned by contacting the tip of the brush with the tip of the brush, and a suction nozzle is provided along with the brush so that a suction port faces downward, and suction cleaning is performed by the suction nozzle. A function is added, and the rotating shaft of the driven gear is eccentrically arranged from the punch center to constitute a rotating brush, and the cleaning action is always performed in parallel with the rotation of the turret during the machining operation without the need for rotation power. A turret punch press die cleaner characterized in that: 3. The turret punch press die cleaner according to claim 1, wherein the brush hold arm is formed of a circular plate, and a plurality of brushes are provided in at least one row. 4. The turret according to claim 2, wherein a plurality of the suction nozzles are intermittently arranged between the implanted brushes so that a sweeping cleaning function by the brushes and a suction cleaning function by the suction nozzles cooperate. Die cleaner for punch press. 5. A rotary shaft of the rotary brush is arranged at a position eccentric to an axis of the turret and outside a turret region,
3. The turret punch press according to claim 1, wherein scraps on the die and the lower turret are reliably discharged outside the machine, and the brush is intermittently moved outside the machine. Die cleaner.