JP2669122B2 - Transfer press two-piece raw material aligning and conveying device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer press, and more specifically, it takes out two irregularly shaped materials having mutually opposite directions from a coil material and aligns the orientations of the two irregularly shaped materials. The present invention relates to a device for alternately transporting the sheets to the next standby station.

2. Description of the Related Art In a blanking station, a press material is cut from a coil material, and is sequentially conveyed to a standby station where transfer by a transfer bar is started. However, if the press materials with the same shape are taken out one by one from the coil material, there will be many parts that are removed as scrap depending on the shape of the final molded product, resulting in poor material yield. There was a chance For example, when the press material 12 is taken out from the coil material 10 as shown in FIG. 3 and then the pressed product 14 having a desired shape is obtained, the hatched portion is removed as the scrap S, and the yield is not always obtained. Is not good.

On the other hand, the shape and direction of the press material taken out of the coil material are devised, for example, as shown in FIG.
If two deformed materials 16a and 16b whose shapes are inverted by 180 ° from each other are taken out from the coil material 10 as a press material, scrap S is reduced and the material yield is improved.

When the deformed material having the opposite direction is taken out from the coil material, two pieces are taken out simultaneously by placing the coil material on a relatively soft base and pressing the cutting blade from above to cut it off. It is usually done. In addition, since the two deformed materials taken out need to be supplied to the standby station in the same direction, a rotary table is arranged at the standby station, and the cut-off material is cut.
The irregular shaped material is transferred onto the rotary table at the same time, and after one piece is sent by the transfer bar, the rotary table is
It has been proposed to rotate the other one in the same direction by rotating the lens by the same angle. 60-66647
The device described in the publication is an example.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, when two deformed materials are arranged side by side on a rotary table in this way and one of the deformed materials is gripped by a transfer bar and sent, the fingers of the transfer bar are deformed to the other deformed shape There is a risk of interfering with the material and failing to grasp, or disturbing the posture of the other deformed material,
There has been a problem that defective transfer of irregularly shaped material is likely to occur due to the transfer bar.

The above problem can be avoided by transporting the two deformed materials separately and alternately to the standby station.
In parting off, two different shaped materials exist in the same plane, so it is necessary to arrange two types of transfer devices in the same plane. This is not always easy in a transfer press where it is difficult to secure a large space. Not.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a compact device that conveys a deformed material to a standby station so as to prevent defective transfer of the deformed material due to a transfer bar. It is in.

Means for Solving the Problems In order to achieve this object, two blanks are taken out to different heights at a blanking station, and the blanks are alternately transported to a standby station. According to the present invention, in the blanking station of the transfer press, the two deformed materials whose directions are reversed by 180 ° are simultaneously taken out from the coil material, and the transfer bar is fed to the standby station where the feeding is started. It is a device that alternately transports the deformed materials in the same direction,
(A) By removing the intermediate portion of the coil material, which is disposed in the blanking station and is intermittently fed once every two strokes of the transfer press, by an upper cutting blade and a lower cutting blade, the removal is performed. A punching die for taking out the intermediate portion and the tip portion left unextracted as two deformed materials whose directions are inverted by 180 °,
(B) The two deformed materials taken out by the punching die are alternately disposed to the standby station for each stroke of the transfer press. A pair of conveying devices for conveying, and (c) a reversing device for rotating one of the two deformed materials by 180 ° so that the two deformed materials are positioned in the waiting station in the same direction. It is characterized by having.

Operation and Effects of the Invention In such a two-dimensionally shaped odd-shaped material aligning and feeding device for transfer press, first, the middle portion of the coil material is punched and dropped by the punching die upper and lower cutting blades. The punched intermediate portion and the left uncut end are simultaneously taken out as two deformed materials whose directions are inverted by 180 °. Then, the deformed materials are alternately transported to the standby station by a pair of transport devices, and one of the deformed materials is turned 180 ° by the reversing device, so that the two deformed materials are They are located in the waiting station in a state in which they are oriented in the same direction.

As described above, according to the present invention, the two different shaped materials are alternately conveyed to the standby station by different conveying devices, so that the two different shaped materials are placed side by side on the rotary table as in the conventional case. As a result, the deformation of the deformed material by the transfer bar and the posture of the deformed material are less disturbed, and the deformed material can be reliably fed by the transfer bar, improving the transfer press operating rate.

Also, since one of the two deformed materials is pulled out by the punching die, a pair of transfer devices are arranged at different heights compared to when they are taken out at the same height by parting off. Therefore, the space between the blanking station and the standby station can be made compact, and can be suitably applied to the transfer press.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 20 denotes a punching die provided at a blanking station ST1 of a transfer press, and an upper cutting blade 24 provided on an upper die 22 and a lower cutting blade provided on a lower die 26.
By punching and dropping the intermediate portion of the coil material 10 by means of 28 and 28, the unpunched tip portion and the punched intermediate portion are simultaneously taken out as the deformed materials 16a and 16b, respectively. As is apparent from FIG. 2 and FIG. 4, these deformed materials 16a and 16b have the same shape and their directions are inverted by 180 ° with each other. The scrap S is determined to be as small as possible in accordance with the shape of.

The upper die 22 is attached to the press ram 29 of the transfer press and can be moved up and down, while the coil material 10 is shown only for the deformed materials 16a and 16b at a rate of once in two strokes of the transfer press. To the right, that is, in the disposing direction of the transfer press. Therefore, the punching die 20 is formed from the coil material 10 to the deformed material 16a only once in two strokes of the transfer press.
And 16b are taken out, and every other time, a blanking state is obtained.

A belt conveyor 30 is disposed on the lower die 26 of the punching die 20, and the deformed material 16b extracted by the punching die 20 is removed.
Is dropped on the conveyor belt 32 of the belt conveyor 30, and the next standby station ST2 is kept in the same posture.
The paper is conveyed right below in the figure.
In the standby station ST2, a lift 36 on which the deformed material 16b is placed and raised by the cylinder 34 is provided. The elevating table 36 can be moved up and down between a descending position slightly lower than the upper surface of the conveyor belt 32 as shown by a solid line in FIG. 1 and an ascending position shown by an alternate long and short dash line. The irregular-shaped material 16b conveyed by the belt conveyor 30 to a position immediately below the standby station ST2 is lifted to a raised position. This ascending position is the standby station ST2, which is set at a height position where the deformed material 16b is gripped by the fingers 40 provided on the transfer bar 38 of the transfer press.

The belt conveyor 30 and the cylinder 34 are operated once in two strokes of the transfer press, and the deformed material 16 removed by the punching die 20 is removed.
b is immediately transported to the standby station ST2. In the present embodiment, these conveyor belts 30 and cylinders 34, a control device for controlling the operation of these cylinders 34 in synchronization with the operation of the transfer press, and the like, a transfer device 4 for transferring the deformed material 16b.
2 are configured.

On the other hand, the deformed material 16a left on the lower mold 26 is
It is conveyed to the standby station ST2 by the rotating arm 44. The rotating arm 44 is integrally fixed to an upper end of a rotating shaft 48 that is rotated about a substantially vertical axis by a driving motor 46 so as to protrude in the horizontal direction, and has a suction end at its tip. The tool 50 is attached downwards,
In FIG. 2, the receiving position where the suction device 50 is located right above the deformed material 16a on the lower mold 26 as indicated by a solid line, and the suction device 50 is connected to the standby station as indicated by a dashed line. Is reciprocated by the drive motor 46 between the transfer position and the transfer position located immediately above the transfer position.

The suction tool 50 is attached to a position slightly higher than the upper surface of the deformed material 16a on the lower die 26, and is deformed by negative pressure or magnetic force when the rotating arm 44 is rotated to the receiving position. When the rotary arm 44 is rotated to the delivery position, the suction of the deformed material 16a is released, and the deformed material 16a is dropped on the lift 36 held at the raised position. The transfer of the deformed material 16a by the rotating arm 44, the suction tool 50, etc. is operated once in two strokes of the transfer press, and is alternately performed with the transfer of the deformed material 16b by the transfer device 42. . In this embodiment, the rotating arm 44
A transport device 52 for transporting the irregularly shaped material 16a includes a drive motor 46, a suction tool 50, a control device for controlling the operation of the suction device 50 in synchronization with the operation of the transfer press, and the like.

Further, the suction device 50 is driven to rotate about a substantially vertical axis by the drive motor 54 when the rotation arm 44 rotates, so that the posture of the deformed material 16a is rotated by 180 °.
The drive motor 54 rotates the suction tool 50 about the axis by an angle obtained by subtracting the rotation angle of the rotation arm 44 from 180 °, and together with the drive motor 46 that rotates the rotation arm 44. It constitutes a reversing device for rotating the deformed material 16a by 180 °.

As a result, the two deformed materials 16a and 16b taken out by the punching die 20 in a posture in which they are inverted by 180 ° are alternately conveyed to the standby station ST2 in the same posture for each stroke of the transfer press. . Then, the deformed materials 16a and 16b alternately conveyed to the waiting station ST2 are sequentially transferred to the next stations ST3, ST4, ... Pressed.

Here, in the transfer press of the present embodiment, since the two different shape materials 16a and 16b are alternately conveyed one by one to the standby station ST2 by the different conveying devices 52 and 42, the rotary table as in the conventional case is used. Compared to the case where two deformed materials are placed side by side, the transfer bar 38
Loss of gripping of the deformed materials 16a and 16b by the finger 40 and disturbance of the posture of the deformed materials 16a and 16b are reduced.
6a and 16b can be reliably sent from the standby station ST2, and the operation rate of the transfer press is improved.

Further, the deformed material 16b is pulled out by the punching die 20, and is conveyed to the standby station ST2 by the conveying device 42 arranged in the lower part of the punching die 20, while the unetched deformed material 16a is conveyed by the conveying device 52. Since it is lifted from above the lower die 26 and conveyed to the standby station ST2, it is compared with the case where the odd-shaped materials 16a and 16b are taken out at the same height position by the cut-off process and conveyed to the standby station ST2 using different conveying devices. As a result, the space between the blanking station ST1 and the standby station ST2 is compact, and there is no need to increase the size of the transfer press.

As mentioned above, although one Example of this invention was described in detail based on drawing, this invention can be implemented in another aspect.

For example, in the above-described embodiment, the reversing device is arranged in the conveying device 52 to reverse the odd-shaped material 16a, but a rotary table is provided on the belt conveyor 30 or the lifting table 36 to reverse the odd-shaped material 16b. You can also Lift 3
When a rotary table is provided in 6, the deformed material 16b may be inverted.

Further, in the above-mentioned embodiment, the deforming material 16a is reversed by rotating the suction tool 50 around the axis, but the rotating shaft 48 is disposed at an intermediate position between the blanking station ST1 and the standby station ST2. For example, by rotating the rotary arm 44 by 180 ° and transporting the deformed material 16a from the blanking station ST1 to the standby station ST2, the deformed material 16a is
It can be reversed by 180 °, and the drive motor 54 becomes unnecessary.

Further, in the above embodiment, the belt conveyor 30 and the rotating arm are used.
Although the transfer devices 42 and 52 are configured using 44, the transfer devices can be configured using a guide rail, a feed screw, or the like.

In addition, the deformed material 16a, 16b taken out from the coil material 10
The shape of is appropriately determined according to the intended shape of the pressed product 14.

Although not specifically exemplified, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing the configuration of a two-piece aligning / conveying apparatus of a transfer press according to one embodiment of the present invention. FIG. 2 is a plan view for explaining the shape of the deformed material and the reversing operation in the apparatus shown in FIG. FIG. 3 is a diagram showing an example of a material shape when one deformed material is taken from a coil material. FIG. 4 is a diagram showing an example of a material shape when two irregularly shaped materials are taken from a coil material. 10: Coil material 16a, 16b: Deformed material 20: Punching die, 24: Upper cutting edge 28: Lower cutting edge, 38: Transfer bar 42,52: Transfer device 46,54: Drive motor (reversing device) ST1: Blanking station ST2: Standby station

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuyuki Shimada 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Toshiyuki Taguchi 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (56) References JP-A-2-211999 (JP, A) JP-A-2-307636 (JP, A) JP-A-3-31026 (JP, U) JP-A-60-186933 (JP, U) 1988-160635 (JP, U) JP-A 59-153031 (JP, U) JP-A 60-176837 (JP, U) JP-A 63-95639 (JP, U)

Claims (1)

(57) [Claims] 1. A blanking station of a transfer press, at the same time, takes out two deformed materials whose directions are reversed from each other by 180 ° from a coil material, and transfers them to a standby station where feeding by a transfer bar is started. An apparatus for alternately transporting the material in the same direction, the upper cutting blade being disposed at the blanking station and intermittently fed once every two strokes of the transfer press. And a punching die that pulls out the removed middle part and the left uncut tip by pulling out with the lower cutting blade as two odd-shaped materials whose directions are reversed by 180 °, and the blanking station, respectively. One stroke of the transfer press, which is disposed over the standby station. A pair of transporting devices for alternately transporting the two deformed materials taken out by the punching die to the standby station; and the two deformed materials so that they are positioned in the standby station in the same direction. And a reversing device for rotating one of the two deformed materials by 180 degrees.