JPH0751776A - Device and method for separating work from scrap - Google Patents

Abstract

PURPOSE:To separate a work from scrap without subdividing the scrap into pieces and to safely deal with the work, in the case that a frame-shaped scrap is produced, by minimizing equipment cost, installation place, maintenance, increase in the number of processes, etc., and providing an inexpensive device. CONSTITUTION:The separating device is such that a work receiving face 6 for placing a work 21 and a scrap receiving face 5 for placing a scrap 20 are integrally formed into one unit with a difference in level, and the device is provided with a sectionally square receiving body 1 on which side four units are arranged at 90 deg. angles apart and a driving part 2 for rotating the receiving body 1 at a 90 deg. angle each step. In addition, the device is constituted of a control part 3, by which the driving part 2 is controlled linked with the carrying operation of the grip fingers 24 of a press line, a belt conveyor 7, by which the scrap 20 falling from the receiving body 1 is received and carried out, and a carry-out part 4 of a scrap box 8. The work receiving face 6 is installed in the receiving body 1 freely attachably and detachably with an elastic member such as sponge and rubber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work and scrap separating apparatus installed after a punching press in a press line and a separating method thereof.

[0002]

2. Description of the Related Art In a press line, work for separating work from scrap is one of the processes for processing scraps generated during the punching process. Usually, the separating work is performed for each press machine. For example, a punching press presses a metal plate as a material to generate a work and scrap, but in order to separate unnecessary scrap from the work, it is common to drop only the scrap under a mold. In particular, in the case of the outer shape punching, it is physically difficult to drop the frame-shaped scrap as it is because frame-shaped scrap is generated, and the frame-shaped scrap is dropped into small pieces. As a means for subdividing and separating, a means for subdividing by providing a scrap shearing blade or the like in the die of the press machine,
Or, a means for individually installing a dedicated press machine for fragmenting and shearing scrap is generally used in a press line.

[0003]

The above-mentioned conventional device has the following problems. 1. The press dies are generally expensive, but require additional mold changes for scrap shearing, which makes them more expensive. 2. When a dedicated machine for scrap shearing is installed in the press line, there are problems that not only the equipment cost becomes high, but also the installation place is occupied, the equipment maintenance is complicated, and the processing man-hour is increased. Further, in the conventional method of subdividing scrap into pieces and separating them from the work, handling of the subdivided scrap becomes complicated, for example, when the subdivided scrap produces a scrap with sharp corners and is scattered. ing. The present invention has been made in view of the above problems, and an object of the present invention is to reduce scrap, in the case of frame-shaped scrap, by minimizing increase in equipment cost, installation place, equipment maintenance, and processing man-hours. It is an object of the present invention to provide an inexpensive work-scrap separation device and a separation method that can be safely handled after being separated from a work without being subdivided.

[0004]

In order to achieve the above object, a work and scrap separating apparatus according to the present invention is provided with a work receiving surface on which a carried-in work is placed, and a carried-on scrap. The scrap receiving surfaces are formed as one unit having a step between them, and at least two units of both receiving surfaces are provided on the side surface of the rotating body and the receiving body of the rotating body. A drive unit that rotates in steps by angular intervals, a control unit that controls the drive unit and the unloading unit described later in conjunction with the transport operation of the transport device of the press line, and a unloading unit that receives scraps that have fallen from the receiving body and unloads them. And is installed in the press line after the press machine, and the work and scrap are carried into the receiving main body by the conveying device of the press line, and only the work is pressed. Is carried out to Surain the next step, the remaining scrap is characterized in that it is dropped from the bearing main body is rotated by the drive unit to the unloading unit. Further, in another device for separating work and scrap, the receiving body has a regular square cross section, the scrap receiving surface is four side surfaces, and the work receiving surface is detachable by an elastic member such as sponge or rubber. , And the four units on both receiving surfaces are arranged at 90 ° intervals so as to be higher than the scrap receiving surface, and the carry-out section carries a belt conveyor that receives and carries scraps dropped from the receiving body. The scrap box is a scrap box that can store the scrap carried by the belt conveyor and carry it out to the outside. Further, the other work and scrap separating device has a work receiving surface on which the work is placed, and a scrap receiving surface on which the scrap is placed and which is set low with a step with respect to the work receiving surface. A receiving main body having a two-stage planar shape, on which a work and scrap to be carried in in a horizontal state are placed, and a drive unit for swinging the receiving main body at an arbitrary angle between 90 ° and 180 ° from the horizontal state, The press unit in the press line includes a control unit that controls the drive unit and the unloading unit described later in conjunction with the operation of the transport device of the press line, and an unloading unit that receives and discharges the scrap that has fallen from the receiving body. The work and scrap are carried into the receiving body by the transfer device of the press line, only the work is carried out to the next step of the press line, and the remaining scrap Characterized in that it is dropped from the bearing main body which is swung into the unloading unit by the drive unit. Further, the work and scrap separating method according to the present invention is to place the work carried in from the press machine of the press line on the work receiving surface raised by the step, and at the same time, carry in the scrap to the work receiving surface. Place on a low scrap receiving surface and carry out only the work on the work receiving surface to the next step of the press line,
Inclining the scrap receiving surface in the horizontal state downward, dropping the scrap remaining on the scrap receiving surface downward, carrying out the dropped scrap and carrying it out to the outside, and carrying in the scrap receiving surface that has no scrap It is characterized in that the scraps and the workpieces are returned to a horizontal state where they can be placed again.

[0005]

In the work / scrap separating apparatus according to the first aspect, the introduced work and scrap are placed on the work receiving surface and the scrap receiving surface, and only the work is carried out to the next step. The scrap remaining on the scrap receiving surface rotates and drops together with the receiving body rotated by the drive unit.
The dropped scrap is received by the carry-out section and carried out to the outside. In the work and scrap separating apparatus according to the second aspect, the work receiving surface is detachable by the elastic member, so that the work and the scrap can be easily placed. The receiving body is rotated by 90 ° by the drive unit, and scraps dropped by the rotation are carried by the belt conveyor and stored in the scrap box. In the work and scrap separating apparatus according to the third aspect, the receiving body is swung from the horizontal state to a predetermined angle by the drive unit, and the scrap remaining on the scrap receiving surface is dropped downward.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view of a work and scrap separating apparatus according to an embodiment of claim 2. As shown in FIG. This device is the receiving body 1
And a drive unit 2, a control unit 3 and an unloading unit 4, which are arranged in the press line after the punching press machine 22,
The scrap 20 and the work 21 are carried in by a grip finger 24 which is a transfer device guided by the feed bar 23. Then, only the work 21 is carried out to the bending press machine 27 in the next step by another grip finger 24. The grip finger 24 serves as a holding device for the work 2
The vacuum suction pad 25 is used so as not to scratch the 1 and the magnet pad 26 is used for the scrap 20. Note that the holding device is not limited to this combination, and various transport holding devices other than the vacuum suction pad 25 can be adopted.

The receiving body 1 is a rotating body having a regular quadrangular cross section, and four side surfaces thereof are scrap receiving surfaces 5, and a work receiving surface 6 is formed on each side surface with a high step with respect to the scrap receiving surface 5. It is equipped. The height of this step is high enough to separate the scrap 20 and the work 21 after punching, and is approximately 10 mm. The scrap 20 and the work 21 that are carried in by forming one unit with the scrap receiving surface 5 and the work receiving surface 6 are placed. Further, four units are arranged on the side surface of the receiving body 1 at an angular interval of 90 °. The work receiving surface 6 is formed of an elastic member such as sponge or rubber, and the plane shape of the work receiving surface 6 is arbitrarily selected in accordance with the shape of the work 21 to be punched, and the work receiving surface 6 can be detachably attached to the scrap receiving surface 5. It is said that The drive unit 2 is composed of a pulse motor or the like for rotating the receiving body 1, and applies a step rotation to the receiving body 1 at every 90 ° which is an angular interval of one unit between the scrap receiving surface 5 and the work receiving surface 6. Control unit 3
Is the step rotation of the drive unit 2 and the unloading unit 4 described later.
This is a part provided with a CPU or the like that stores the control program of. In the present embodiment, it is integrated into a central control device of the press line, and the control program of the driving unit 2 and the like is also operated as a part of the control program of the press line so as to be linked with the operation of the grip fingers 24. is there.
The carry-out section 4 stores the belt conveyor 7 that receives and carries the scrap 20 that has fallen from the scrap scrap receiving surface 5, and the scrap 20 that is carried by the belt conveyor 7,
The scrap box 8 can be carried out by a forklift or the like. The unloading unit 4 is not limited to the above configuration, and the scrap 20 that falls
Various carrying-out means such as a chute may be employed, such as a structure in which the scraps are directly stored in the scrap box 8 or a structure in which the scraps are carried out to the scrap processing facility only by the belt conveyor 7. The receiving body 1, the driving unit 2, and the unloading unit 4 described above
Is a simple and inexpensive equipment, and it can minimize occupation of the installation place and equipment maintenance. The control unit 3 can also be manufactured at low cost due to its simple operation, can be easily incorporated as a part of the press line control, and can further reduce the cost.

Next, a method for separating a work and scrap corresponding to claim 4 which is an operation of the above-mentioned embodiment will be described. First, the scrap 20 and the work 21 that have been externally punched by the punching press 22 of the press line are shown in FIG.
As shown in (a), they are placed on the scrap receiving surface 5 and the work receiving surface 6, respectively. Here, since the work receiving surface 6 is formed of an elastic member, even if the scrap 20 or the like is displaced to some extent, it is absorbed by the elasticity. As shown in FIG. 2B, only the work 21 is placed at a high position, and the grip fingers 24 are attached to the bending press 27 in the next process.
Be carried out by. As shown in FIG. 2B, the drive unit 2 rotates the receiving body 1 by 90 ° in steps and stops. The scrap 20 remaining on the scrap receiving surface 5 falls downward with rotation and is received by the belt conveyor 7. The belt conveyor 7 conveys the received scrap 20 to the scrap box 8 for storage. When the scrap box 8 is filled with the scrap 20, it is carried out and processed by a forklift (not shown) or the like. The scrap 20 will be carried out as it is without being subdivided.

Next, another embodiment corresponding to claim 1 will be described. This is an embodiment in which the scrap receiving surface 5 and the work receiving surface 6 of the receiving body 1 are different in number of units from the above-described embodiment corresponding to claim 2. For example, in the case of the two units shown in FIG. 3A, one unit including the scrap receiving surface 5 and the work receiving surface 6 is provided on each of two opposing side surfaces of the receiving body 1 having a quadrangular cross section. Since each unit has an angular interval of 180 °, the drive unit 2 performs a step rotation of 180 °. In the case of the three units shown in FIG. 3B, the cross section of the receiving body 1 is a regular triangle, and the three sides have three sides.
Two units are arranged, with an angular spacing of 120 °.
The step rotation of the drive unit 2 is also 120 °. Furthermore, FIG.
In the case of the five units shown in C, the receiving body 1 has a pentagonal cross section, and five units are arranged on five side surfaces.
The angle interval is 2 °. The step rotation of the drive unit 2 is 72
It becomes ゜. As described above, not only the two or more units are arranged with the cross section of the receiving body 1 being polygonal, but the basic cross section has a circular cross section, and the flat portions of the scrap receiving surface 5 and the work receiving surface 6 are arranged. It is also possible to add it.

Further, another embodiment corresponding to claim 3 will be described. As shown in FIG. 4, this embodiment has a receiving body 1
1 is a separation device different from the embodiment of claim 1 above. The receiving main body 11 has a scrap receiving surface 12 on which the scrap 20 is placed, and a work receiving surface 13 on which a work 21 is placed, which is set higher than the scrap receiving surface 12 with a step. The work 21 and the scrap 20 that are carried in in a horizontal state are placed. The swing actuator 14, which is a driving unit, is connected to the receiving body 11 by the rod 14a, and can swing the receiving body 11 from the horizontal state by about 100 ° which is an arbitrary angle between 90 ° and 180 °. The other components are the same as those in the above-described embodiment, and the description thereof will be omitted.

Further, the operation of the receiving main body 11 is that the scrap 20 remaining on the scrap receiving surface 12 is dropped onto the belt conveyor 7 by the rocking motion of the rocking actuator 14, which is different from the embodiment of claim 1. different. Since the scrap 20 carried by the belt conveyor 7 is stored in the scrap box 8 and other operations are the same, the description thereof will be omitted. The swing actuator 14 is a swing motor, a pneumatic type (vane type, rack and pinion type, etc.),
Various general commercial products such as hydro type (vane type, rack and pinion type, etc.) can be adopted. Further, instead of the swing actuator 14, the receiving body 11 can be swung by a mechanism using a crank or a cam that changes the rotational movement of a motor or the like into swing. Also in the embodiment of claim 3, the receiving main body 11 and the drive unit 14 are simple and inexpensive equipments, the occupation of the installation place and the equipment maintenance can be minimized, and the scrap 20 is directly carried out without being fragmented. Will be done.

[0012]

As described above, according to the work and scrap separating apparatus and the separating method of claims 1 to 4, when a frame-shaped scrap is generated, the equipment cost, the installation place, and the equipment maintenance are provided. In addition, the increase in the processing man-hours, etc. can be minimized and the scrap can be separated from the work and safely handled without being fragmented. Moreover, the device is provided at low cost. Further, in the work and scrap separating apparatus according to claim 2, since the work receiving surface is made of an elastic member, the positioning accuracy can be made gentle, and the work receiving surface is made detachable. The shape can be selected and the scrap and the work can be reliably placed on both receiving surfaces.

[Brief description of drawings]

FIG. 1 is a perspective view of an apparatus showing an embodiment corresponding to claim 2. FIG.

FIG. 2A is a state explanatory view of a receiving body showing a state where scraps and works are placed, and FIG. 2B is a state explanatory view showing a state where scraps are dropped and stored.

FIG. 3A is a side view of the receiving main body when there are two units for the scrap receiving surface and the work receiving surface, B is a side view of the receiving main body when there are three units, and C is a side view of the receiving main body. It is a side view of the receiving body in the case of five.

FIG. 4 is a schematic configuration diagram showing a receiving body of an embodiment corresponding to claim 3;

[Explanation of symbols]

 1, 11 Receiving main body 5 Scrap receiving surface 6 Work receiving surface 2, 14 Drive section 3 Control section 4 Unloading section 7 Belt conveyor 8 Scrap box 20 Scrap 21 Work

Claims (4)

[Claims] 1. A work receiving surface on which a carried-in work is placed and a scrap receiving surface on which a carried-in scrap is placed are mutually stepped to form one unit, and at least two of the two receiving surfaces are provided. Of the rotating body, in which two units are arranged at equal angular intervals on the side surface, a drive unit that rotates the receiving body in steps by the angular interval, and the drive unit in conjunction with the transfer operation of the press line transfer device. Unit and a unloading unit that controls the unloading unit described later, and an unloading unit that unloads and receives the scrap that has fallen from the receiving body, and is installed after the pressing machine in the press line, and the work device is installed by the press line transfer device. And scrap is carried into the receiving main body, only the work is carried out to the next step of the press line, and the remaining scrap is rotated by the driving unit. A work / scrap separation device that is dropped from a receiving body to the unloading unit. 2. The receiving body has a regular square cross section, the scrap receiving surface is four side surfaces, the work receiving surface is detachable by an elastic member such as sponge or rubber, and the scrap receiving surface is The four units on both receiving surfaces are arranged at 90 ° intervals so as to be higher than the other, and the carry-out section is carried by the belt conveyor that carries scraps that have fallen from the receiving body and the belt conveyor. The work / scrap separating device according to claim 1, wherein the scrap box is a scrap box capable of storing the scrap and carrying it out. 3. A two-tiered flat surface having a work receiving surface on which a work is placed and a scrap receiving surface having a step with respect to the work receiving surface, which is set low and on which scrap is placed. Yes, a receiving main body on which a work and scrap to be carried in in a horizontal state are placed, a drive unit for swinging the receiving main body at an arbitrary angle between 90 ° and 180 ° from the horizontal state, and operation of a press line transfer device It is configured by a control unit that controls the driving unit and a unloading unit described later in conjunction with the unloading unit, and a unloading unit that unloads scrap that has fallen from the receiving body and unloads it. The transfer device transfers the work and scrap to the receiving main body, transfers only the work to the next step of the press line, and swings the remaining scrap by the drive unit. A device for separating a work and a scrap, characterized in that the device is dropped from the received main body to the carry-out section. 4. A work carried in from a press machine of a press line is placed on a work receiving surface raised by a step, and at the same time scrap carried in is placed on a scrap receiving surface lower than the work receiving surface, Carrying out only the work on the work receiving surface to the next step of the press line, inclining the scrap receiving surface in the horizontal state downward and dropping the scrap remaining on the scrap receiving surface downward, the scrap that fell A method for separating work and scrap, which is characterized in that the scrap receiving surface, which receives the scrap and is scraped out, is returned to a horizontal state in which the scrap and the work to be loaded can be placed again.