JP4086884B1 - Auto shooter for press products - Google Patents

Abstract

An object of the present invention is to provide an auto shooter for a pressed product that can automatically and reliably recover a processed product that has been punched and dropped in press processing without requiring manual labor.
A base 1 having an inclined surface on an upper surface, a support plate 4 installed on the inclined surface, a stationary chute 8 fixed thereto, and a movable chute 11 slidably disposed thereon. And a drive mechanism that is installed on the support plate 4 and slides the movable chute 11 along the stationary base 8. The drive mechanism is a shaft support plate 21 that is placed on the support plate 4 and to which the shaft 23 is passed. , 22 and a three-way arm pivotally supported by a shaft 23. The three-way arm includes an upstream-side upward arm 25, an upstream-side downward arm 26, and a downstream-side arm 27. One end is supported on the downstream-side arm 27. The other end of the return spring 28 fixed to the plate 4 is fixed, and the distal end portion of the upstream downward arm 26 is locked to the driven plate 15 fixed to the side portion of the movable chute 11.
[Selection] Figure 1

Description

  The present invention relates to an auto shooter for a pressed product, and more specifically, in a press punching process using a compound die, for example, a processed product dropped from a female die moving upward after punching a metal plate material such as stainless steel. The present invention relates to an auto shooter for press-worked products for collection.

  Conventionally, in the punching process using the above-mentioned press machine, the workpieces that are punched and pushed out from the female die are often collected by inserting a hand, but in this method, a hand is accidentally sandwiched between the molds. It is not uncommon for people to get seriously injured.

  In addition, it is conceivable that the falling processed product is blown with air to collect it, but since the action of the air may not be sufficient depending on the direction of the processed product, etc., the operation becomes uncertain, so this method Is not practical.

Japanese Utility Model Publication No. 51-57476 Japanese Utility Model Publication 4-3697 Japanese Utility Model Publication No. 6-61330

  As described above, there is a risk that the punched product is collected manually, and there is a problem that the method using air lacks the stability of the operation. There is no problem, that is, it is an object to provide an auto shooter for a pressed product that can reliably and safely automatically recover a processed product that has been die-cut and dropped in press processing without requiring manual labor. And

The invention according to claim 1 for solving the above-mentioned problems is a base having an inclined surface on an upper surface, a support plate installed on the inclined surface of the base, and a mold that is fixed to the support plate and moves downward. a stationary chute that will be placed in a position not in contact with the upper mold, a movable chute which is slidably disposed on the stationary chute, installed on the support plate, exits approaching the movable chute from the stationary base It is not composed of a drive mechanism Ru is positioned below the upper mold and said drive mechanism includes a shaft support plate the shaft is passed is opposed on the supporting plate, and a three-way arm which is pivotally supported on the shaft The three-way arm comprises an upstream upward arm, an upstream downward arm, and a downstream arm, and the other end of a return spring whose one end is fixed to the support plate is fixed to the downstream arm, Downstream upstream The distal end of the arm, the locked to the driven plate to be fixed to the side of the movable chute, than Te, by upstream side upward arms of the three-way arm with the downward movement of the mold is pressed, the An upstream downward arm acts on the movable chute via the driven plate, allowing it to be retracted along the stationary chute to a position not hitting the descending upper die, An auto shooter for a press-processed product that enables the movable chute to return to a position where it protrudes from the stationary base by the action of the return spring as it rises .

  Preferably, the support plate has a long hole as a screw hole for a fixing screw, the mounting position on the inclined surface of the base can be changed, and the upstream upward arm is divided into two. The angle of the tip side portion with respect to the shaft side portion can be changed.

  Preferably, the upstream side downward arm is locked to the locking plate by loosely inserting a tip portion thereof into a locking hole formed in the driven plate, and the engagement plate is placed on the support plate. A support groove for sliding the lower bent portion of the stop plate is formed.

  More preferably, a sensor for detecting the retracting operation of the movable chute is installed on the outer surface of the movable chute or any other location, and the press operation is controlled based on a signal from the sensor.

  The present invention is as described above, and the press-processed product can be automatically and continuously collected unattended, so it is safe and has a simple configuration, and can be easily installed in existing press equipment, There is an effect that it can be operated without requiring special power.

  Further, in the invention according to claim 6, when the retracting operation of the movable chute is not properly performed, occurrence of a situation in which the movable chute is sandwiched between the molds and the expensive mold is damaged is surely prevented. There is an effect.

  The best mode for carrying out the present invention will be described with reference to the accompanying drawings. 1 to 4 are perspective views illustrating an embodiment of an autoshooter according to the present invention from different angles.

  In the figure, reference numeral 1 denotes a base having an inclined surface 2 on the upper surface, which is fixed to a desired position such as on a table 3 of a press machine by screwing, welding or any other method. A support plate 4 is disposed on the inclined surface 2. Preferably, a long hole 5 extending in the length direction is formed in the support plate 4, and a fixing screw 6 is screwed into the inclined surface 2 through the long hole 5 so that the support plate 4 is fixed on the inclined surface. To. In such a case, the support plate 4 can be moved in the diagonally up and down direction along the inclined surface 2 by the length of the long hole 5, and the operation range of the movable chute 11 described later can be changed and adjusted. Become.

An inward lengthwise edge of the support plate 4 is raised to form a fixed wall 7 , and a stationary chute 8 is fixed to the outer surface of the fixed wall 7. The stationary chute 8 has its outer side edge raised to form a support wall 9, and the inner side edge is bent downward to form a fixed wall 10. The fixed wall 10 is fixed to the fixed wall 7. It is joined to the outer surface of.

  On the stationary chute 8, a movable chute 11 having a U-shaped cross section is slidably disposed so as to fit inside the stationary chute 8. The movable chute 11 has an outer wall 12 that slides in contact with the inner surface of the support wall 9 and an inner wall 13 that faces the outer wall 12, and the inner wall 13 is fixed to the driven plate 15.

  The driven plate 15 moves integrally with the movable chute 11 and is supported by a support member 16 that is fixed to the movable chute 11 and supports its movement, and a driven member 17 that receives a driving force from a driving mechanism described later. Become. The support member 16 has an L-shaped cross section, and the inner wall 13 of the movable chute 11 is fixed to the vertical surface 16a. The horizontal surface 16b is on the inner edge of the stationary chute 8, and the Slide.

  The driven member 17 also has an L-shaped cross section, and the upper half of the vertical surface 17 a bent downward is fixed to the vertical surface 16 a of the support member 16. The lower half of the vertical surface 17 a slides in a guide groove 19 formed between the fixed wall 7 and a guide block 18 placed on the support plate 4.

  The drive mechanism includes shaft support plates 21 and 22 that face each other on the support plate 4 and pass the shaft 23, and three-way arms 24 that are pivotally supported by the shaft 23. The driven member 17 is formed with a relief hole 17 a for inserting the inner shaft support plate 22. The escape hole 17 a extends in the length direction at the inner side edge of the driven member 17. Needless to say, the escape hole 17 a is for preventing the movement of the driven member 17 from being obstructed by the shaft support plate 22.

  The three-way arm 24 includes an upstream-side upward arm 25, an upstream-side downward arm 26, and a downstream-side arm 27. One end of a return spring 28 is fixed to the end of the downstream arm 27, and the other end of the return spring 28 is fixed to the side of the support plate 4. The return spring 28 always acts to pull the downstream arm 27 and rotate downward.

  The distal end portion 26 a of the upstream downward arm 26 is narrowed, and the narrowed distal end portion 26 a is loosely inserted into a locking hole 29 formed in the driven member 17. Preferably, the free roll 30 is attached to the tip of the upstream upward arm 25.

  Preferably, the upstream upward arm 25 is divided into two so that the attachment angle of the distal end side portion 25b with respect to the shaft side portion 25a can be changed. For this purpose, for example, a fan-shaped portion 25c is provided in the distal end side portion 25b, and one screw hole 31 is formed in the main portion and a plurality of holes are formed in the peripheral portion. Then, the shaft side portion 25a is screwed into the screw hole 31 of the main part and one of the selected screw holes 31 of the peripheral part. In that case, the angle of the shaft side portion 25a and the tip side portion 25b varies depending on which of the screw holes 31 at the peripheral edge is used.

  Thus, by changing the angle of the tip end portion 25b with respect to the shaft side portion 25a, it is possible to correspond to the interval between the upper and lower molds described later.

  The auto shooter according to the present invention has been developed to be retrofitted to an existing press machine, but it goes without saying that the auto shooter may be provided to the press machine from the beginning. In the case of retrofitting, the base 1 is installed by fixing it to the table 3 of the press machine by screwing, welding or the like.

  FIG. 5 (FIG. 1) shows a state in which the female die 41 is raised and the movable chute 11 is pushed downward. In this state, the three-sided arm 24 has its downstream arm 27 rotated downward by the action of the return spring 28, and conversely, the upstream upward arm 25 is rotated upward (rotation in the forward direction). ). Their rotational ends are regulated by the free roll 30 hitting a stop plate 42 protruding from the female die 41.

  From this state, when the female die 41 starts to move down for die removal, the free roll 30 receives a pressing force from the stop plate 42 that is equal to or greater than the tensile force of the return spring 28. It rotates in the opposite direction. As a result, the upstream lower arm 26 that rotates downward acts on the driven member 17 via the locking hole 29 with which the tip end portion 26 is engaged, and the driven member 17 is moved obliquely downward. Let

  The movement of the driven member 17 is directly transmitted to the movable chute 11 integrated therewith, and the movable chute 11 slides on the stationary chute 8 and moves backward so as to escape from the raising / lowering operation area of the female die 41 (FIG. 6, see FIG. 2), it does not interfere with the die-cutting operation. The backward movement of the movable chute 11 is guided by the vertical surface 17 a of the driven member 17 sliding in the guide groove 19.

  Then, after the die-cutting operation, as the female die 41 rises, the stop plate 42 also rises, and as the pressing force on the free roll 30 is released, the three-way arm 24 is pulled again by the return spring 28 and moves in the forward direction. To turn. As a result, the driven member 17 receives an upward driving force from the upstream lower arm 26 through the locking hole 29, and the movable chute 11 moves forward, as shown in FIG. It returns to the state of being pushed under 41. In this state, one or a plurality of molded products protruding from the female die 41 and dropping are received, and then flowed downward to be dropped into a collection box (not shown).

  Thereafter, the above operation is repeated, and a workpiece that is continuously punched and dropped is automatically collected each time. Since this collection operation does not require any manual operation, there is no danger of the operator getting caught in the hand, and the movement of the mold is used as the power for the operation, so the troublesomeness of wiring etc. There is no cost for that.

  FIG. 7 shows a main part of another embodiment of the present invention, in which a mold protection means is incorporated in the configuration of the above embodiment. That is, as described above, the movable chute 11 moves back and forth in response to the raising and lowering of the female die 41, but the movable chute 11 may not fully retract for some reason. In that case, the movable chute 11 is sandwiched between the upper and lower molds, and the expensive mold may be damaged.

  As a countermeasure, in this embodiment, the sensor 32 is attached to an arbitrary portion, for example, the outer surface on the front end side of the movable chute 11. This sensor 32 is for detecting that the movable chute 11 that has advanced between the molds has moved back to the proper position, and for example, a proximity switch is used.

  Based on the signal from the sensor 32, the lowering operation of the female die 41 is controlled. That is, a control device (not shown) waits for a normal signal from the sensor 32 and sends a signal allowing the lowering operation of the female die 41 (of course, the operation of the female die 41 is performed based on the abnormal signal from the sensor 32). It may be stopped.) Thus, when the movable chute 11 is not retracted to an appropriate position for some reason, the female die 41 is prevented from being lowered, and the possibility of damaging the mold due to the clamping pressure of the movable chute 11 is avoided.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

It is a perspective view from one direction which shows the structure of the autoshooter for press work products which concerns on this invention. It is a perspective view from another direction which shows the structure of the autoshooter for press work products which concerns on this invention. It is a perspective view from another direction which shows the structure of the autoshooter for press work products which concerns on this invention. It is a perspective view from another direction which shows the structure of the autoshooter for press work products which concerns on this invention. It is a use condition figure (at the time of an advance state) of the auto shooter for press work products concerning the present invention. It is a use condition figure (at the time of a retreat) of the auto shooter for press work products concerning the present invention. It is a figure which shows the principal part of the other structural example of the autoshooter for press work products which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Inclined surface 3 Table 4 Support plate 5 Long hole 6 Fixing screw 7 Fixed wall 8 Static chute 9 Support wall 10 Fixed wall 11 Movable chute 12 Outer side wall plate 13 Inner side wall 15 Driven plates 16a and 17a Vertical surface 17 Driven member 18 Guide block 19 Guide groove 21, 22 Shaft support plate 23 Shaft 24 Three-way arm 25 Upstream upward arm 25 a Shaft side portion 25 b Tip side portion 25 c Fan-shaped portion 26 Upstream downward arm 27 Downstream arm 28 Return spring 29 Locking hole 30 Free roll 31 Screw hole 32 Sensor 41 Female die 42 Stop plate

Claims (6)

A base having an inclined surface on the upper surface, a support plate installed in the base of the inclined plane, fixed to said support plate, a stationary chute disposed Ru at a position not in contact with the upper mold of the mold for lowering operation, from a movable chute which is slidably disposed on the stationary chute, the installed on the support plate, and the drive mechanism we leave for the movable chute was Seridasa from the stationary base is positioned below the upper die Consisting of
The drive mechanism includes a shaft support plate that is opposed to the support plate and through which a shaft is passed, and a three-way arm that is pivotally supported by the shaft. The three-way arm includes an upstream upward arm and an upstream downward arm. And a downstream arm, the other end of the return spring having one end fixed to the support plate is fixed to the downstream arm, and the tip of the upstream downward arm is located on the side of the movable chute Locked by the driven plate to be fixed , the upstream upward arm of the three-way arm is pushed down in accordance with the lowering operation of the mold, so that the upstream downward arm is moved through the driven plate. It acts on the chute and allows it to be retracted along the stationary chute to a position not hitting the descending upper mold, and as the upper mold rises, the return spring acts to allow the return. Shoots, moldings for auto shooter made make it possible to return to a position pushed out from the stationary base.   The autoshooter for a press-worked product according to claim 1, wherein the support plate has a long hole as a screw hole for a fixing screw, and the mounting position on the inclined surface of the base can be changed.   3. The autoshooter for press-worked products according to claim 1, wherein the upstream upward arm is divided into two, and the angle of the tip side portion with respect to the shaft side portion can be changed.   4. The press-worked product according to claim 1, wherein the upstream downward arm is locked to the driven plate by loosely inserting a tip portion of the upstream downward arm into a locking hole formed in the driven plate. 5. Auto shooter.   The autoshooter for press-worked products according to any one of claims 1 to 4, wherein a guide groove for guiding a downward bent portion of the driven plate is formed on the support plate.   The sensor for detecting the retracting movement of the movable chute is installed on an outer surface of the movable chute or any other location, and the press operation is controlled based on a signal from the sensor. Auto shooter for pressed products.

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