JPH0544331U - Transfer press machine - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a transfer press machine capable of performing dimension adjustment work of a blank chute on which a blank is placed at a mold exchange position. [Structure] Blank supply device 4 to blank chute 5
Blank is fed to the feed bar 8
Is sent to each processing stage with a moving bolster 2,
In a transfer press machine in which 2'reciprocates between a press working position A inside the press machine and mold changing positions B and C outside the press machine, a blank chute 5 is attached to the moving bolsters 2 and 2 ', and a moving bolster is attached. The blank chute 5 is carried out to the mold exchange position by.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transfer press machine that conveys a blank fed to a blank chute by a feed bar and processes it.

[0002]

[Background technology]

 In a transfer press machine, blanks are fed to a blank chute from a blank feeding device such as a destack feeder. The blanks are sequentially fed to each processing stage by a feed bar, and are sequentially processed into a predetermined shape by vertical movement of slides. To be done. The bolster to which the lower mold is attached is a moving bolster that reciprocates between the press working position inside the press machine and the mold change position outside the press machine.The mold is used to produce new press products. When the moving bolster carries it to the mold replacement position, the feed bar is also carried to the mold replacement position while being supported by the feed bar support member provided on the moving bolster, which holds the blanks provided on the feed bar. The work for replacing the finger with another finger that is compatible with the new pressed product is performed at the mold replacement position where the periphery is open.

[0003]

[Problems to be solved by the device]

 The blank chute to which the blank is fed from the blank feeder has conventionally been fixedly arranged in the transfer press machine. When a new press product is produced by exchanging dies, the blank is replaced with one having a size and shape corresponding to the new press product. Therefore, the size of the blank shoot on which the blank is placed is adjustable, and the size of the blank chute is adjusted when the blank is replaced with a different size. However, since the blank chute has conventionally been fixedly arranged in the transfer press machine, this dimensional adjustment work must be performed in the transfer press machine, which has a small space, and it takes a lot of labor and time. Was there.

The object of the present invention is to eliminate the need to perform the dimension adjustment work of the blank chute in the press machine, and this work can be performed at the mold exchange position where the periphery is open, and the transfer press that can realize the work ease can be realized. It is in the area of providing machinery.

[0005]

[Means for Solving the Problems]

 According to a first aspect of the present invention, a blank is fed from a blank feeding device to a blank chute and placed on the blank chute, and the blank is clamped by fingers of a feed bar and fed to each processing stage to be processed into a predetermined shape. In a transfer press machine in which a moving bolster is moved back and forth between a press working position inside the press machine and a mold changing position outside the press machine, a blank chute is attached to the moving bolster. To do.

A second aspect of the present invention is the same as the first aspect of the present invention, which has a leg portion for fixing the blank chute to the moving bolster and a horizontal blank mounting portion provided on the upper portion of the leg portion. The blank mounting part is connected to the legs so as to be vertically rotatable.

[0007]

[Action]

 Since the blank chute is attached to the moving bolster, when the moving bolster is moved from the press working position inside the press machine to the mold changing position outside the press machine for the mold changing work, the blank chute will move to the mold changing position. Be carried out. Then, the dimension adjustment work of the blank chute is carried out at this mold exchange position.

When the blank chute interferes with the column of the press machine when the blank chute is moved to the mold replacement position by moving the moving bolster, the blank chute is provided on the upper part of the leg as in the second invention. The horizontal blank mounting part is designed to be rotatable up and down with respect to this leg part, and this blank mounting part is rotated vertically to change its direction so that it does not interfere with the column. ..

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view showing a transfer press machine according to the present embodiment, and columns 1 for connecting a bed and a crown are provided at four corners. A moving bolster 2 is arranged at a press work position A inside the transfer press machine, and a rail 3 extends from this press work position A to a die exchange position B, C outside the transfer press machine. At the mold changing position C, there is another moving bolster 2 '.

A blank feeding device 4 such as a destack feeder is attached to the transfer press machine, and the blank feeding device 4 feeds a blank to a blank chute 5. The blank chute 5 is attached to the moving bolster 2. In the transfer press machine, two left and right clamp devices 6 are mounted and arranged on the column 1, and a pair of feed bars 8 are slidably held by feed bar receiving members 7 of these clamp devices 6. Further, the transfer press machine is provided with an advance device 9 at a position opposite to the blank supply device 4, and a pair of feed bars 8 are provided by a clamp device 6 and an advance device 9 to a finger provided on the feed bar 8. At 10, the approaching movement, the raising movement, the forward movement, the lowering movement for clamping the blank, the separating movement for unclamping the blank, and the backward movement are carried out in this order, whereby the blank fed to the blank chute 5 is The blanks are sequentially sent to the processing stages D to I, and in each processing stage, the blank is pressed by the upper die attached to the slide (not shown) and the lower die 11 attached to the moving bolster 2, and the final processing stage I is performed. The blank finished to the specified shape is discharged to the outside of the transfer press machine by the discharge conveyor 12. It is.

Each feed bar 8 is formed by connecting a first bar 8 A at the center and second bars 8 B and 8 C at both ends, and the moving bolster 2 has the moving ball 2 along the rail 3. A feed bar support member 13 is provided for taking out the first bar 8A to the mold changing position B when moving to the mold changing position B. The feed bar support member 13 and the blank chute 5 are also provided on the moving bolster 2'which has reached the mold replacement position C.

As shown in FIG. 2, the blank chute 5 has a leg portion 14 fixed to the moving bolster 2 and a blank placing portion 15 horizontally provided above the leg portion 14. .. 3 and 4 show a specific structure of the blank mounting portion 15.

As shown in FIGS. 3 and 4, a base plate 16 is attached to the top of the leg portion 14, and transverse members 17 to 23 extending in a direction orthogonal to the longitudinal direction of the feed bar 8 are fixed to the base plate 16. Has been done. The horizontal members 17, 20, 23 are larger in height than the horizontal members 18, 19, 21, 22. The upper surfaces of the horizontal members 17, 20, 23 are located above the substrate 16 and the feed bar 8 is provided. The vertical members 24 to 27 extending in the longitudinal direction of are fixed. As shown in FIG. 3, the horizontal members 18, 19, 21, 22 have a length protruding from the substrate 16, and bar members 28, 29 are placed on the upper surfaces of both ends of these members. The bar members 28 and 29 have the same height as the vertical members 24 to 27 so that the blanks can be placed on the upper surfaces of the bar members 28 and 29 and the vertical members 24 to 27. ..

The rods 28, 29 are tightened and loosened by a bolt 30 inserted between the horizontal members 18, 19 and between 21, 22 and a nut 31 screwed to the lower end of the bolt 30. It is fixed and slidable with respect to the cross members 18, 19, 21, and 22. By sliding the rods 28 and 29 in the longitudinal direction of the cross members 18, 19, 21, and 22 to change the position from, for example, the solid line position to the two-dot chain line position, the blank mounting portion 15 of the blank chute 5 has a width Dimensioned in the direction.

As shown in FIG. 4, two sliders 32 are arranged on the substrate 16 slidably in the longitudinal direction of the feed bar 8 between the cross members 19 and 20 and between the cross members 20 and 21. The sliders 32 are provided with suction cups 33 for vacuum-sucking the blank. The suction cup 33 sucks the blank when the blank is fed from the blank feeder 4 to the blank chute 5, and when the feed bar 8 conveys the blank to the first processing stage D by the finger 10. Releases this adsorption. Each slider 32 can be fixed to the substrate 16 by tightening and loosening a bolt 35 inserted into a long hole 34 formed in the substrate 16 and a nut 36 screwed to the lower end of the bolt 35. It is slidable, and the size of the blank mounting portion 15 of the blank chute 5 is adjusted in the vertical direction by changing the position of the slider 32, for example, from the solid line position to the two-dot chain line position in FIG.

Next, the operation will be described. After the pressing work using the moving bolster 2 is completed, the upper mold attached to the slide is placed on the upper part of the lower mold 11 on the moving bolster 2 and the feed bar support member 13 is rotated 180 degrees. The position of the feed bar 8 is right below the first bar 8A, and then the moving bolster 2 is raised by an elevating device (not shown) to support the first bar 8A by the support member 13, and the first bar 8A is moved to the second bar 8A. Separate from 8B and 8C. After that, the moving bolster 2 is caused to travel along the rail 3 to reach the mold replacement position B. On the other hand, the moving bolster 2'at the mold changing position C travels to the press working position A, after which the moving bolster 2'is lowered by the lifting device and landed on the bed. As a result, the first bar 8A supported by the supporting member 13 of the moving bolster 2'is connected to the second bars 8B and 8C remaining in the transfer press machine and is separated from the supporting member 13. Further, the upper die placed on the lower die 11 of the moving bolster 2'is attached to the slide, and the next press work is started by these upper die and lower die 11.

During this pressing operation, the moving bolster 2 that has reached the mold replacement position B undergoes the mold replacement work of the upper mold and the lower mold, and at the same time, the fingers 10 attached to the first bar 8A. Replacement work is also performed.

In the above, when the moving bolster 2 moves from the press working position A inside the transfer press machine to the mold exchanging position B outside the transfer press machine, the blank chute 5 is attached to the moving bolster 2. Therefore, the blank chute 5 is also carried out to the mold exchange position B. At this mold exchange position B, the blank mounting portion 15 of the blank chute 5 is adjusted in size to a size corresponding to the blank processed by the exchanged mold, that is, at the mold exchange position B as described above. Dimension adjustment work is performed. Unlike the press working position A, the mold changing position B is an open space, so this work can be performed easily and workability is improved.

After the moving work bolster 2 ′ at the press work position A is finished, the moving bolster 2 ′ is moved to the mold changing position C, and the moving bolster 2 at the mold changing position B is pressed. Move to work position A and start the next press work.

5 and 6 show a blank chute 40 according to another embodiment. In the blank shoot 40, the blank mounting portion 42 provided on the upper portion of the leg portion 41 is dimensionally adjustable only in the width direction (direction orthogonal to the longitudinal direction of the feed bar 8). The bar members 47 and 48 are fixed to the cross members 43 to 46 in a structure similar to that of the above-described embodiment and are slidable. Further, in this embodiment, an electromagnetic magnet 50 is used instead of the suction cup, and this electromagnetic magnet 50 is provided on the vertical member 49.

In the blank chute 60 shown in FIG. 7, the blank mounting portion 62 horizontally provided on the upper portion of the leg portion 61 is moved when the moving bolster 2 is moved between the press working position and the mold changing position. It is applied when there is a risk of interference with the column 1. The blank mounting portion 62 is vertically rotatably connected to the leg portion 61 by a shaft 63, and a cylinder 64 is bridged between the blank mounting portion 62 and the leg portion 61. As the piston rod 64A of the cylinder 64 expands and operates, the blank mounting portion 62 pivots upward about the shaft 63 as indicated by the chain double-dashed line, thereby moving the moving bolster 2 to the press working position and the die. There is no risk of the blank mounting portion 62 interfering with the column 1 when moved to and from the exchange position.

In FIG. 7, the blank mounting portion 62 may be rotated downward so as to eliminate the interference with the column 1, and a means for rotating the blank mounting portion 62 up and down. Is not limited to the cylinder 64, and may be a motor or the like, for example.

[0023]

[Effect of the device]

 According to the first aspect of the present invention, since the blank chute is attached to the moving bolster, when the moving bolster is moved from the press working position inside the press machine to the mold replacement position outside the press machine for mold replacement, Since the blank chute can be carried out to the mold change position, and the mold change position is an open space around the mold change position, it is easy to adjust the size of the blank chute to the size corresponding to the size of the blank. And the workability is improved.

According to a second aspect of the present invention, the blank chute has a leg portion fixed to the moving bolster and a horizontal blank mounting portion provided on the upper portion of the leg portion. Since this blank mounting part is connected to the legs so as to be rotatable up and down, the blank mounting part moves when the moving bolster is moved between the press working position inside the press machine and the die changing position outside the press machine. Even if there is a risk of interference with the column of the press machine, it is possible to eliminate this interference by rotating the blank mounting portion up and down, and therefore the moving bolster can be moved safely as prescribed.

[Brief description of drawings]

FIG. 1 is a plan view showing a transfer press machine according to an embodiment of the present invention.

FIG. 2 is a front view showing a blank chute portion.

FIG. 3 is a plan view showing a blank mounting portion of a blank chute.

4 is a vertical cross-sectional view of FIG.

FIG. 5 is a view similar to FIG. 3 showing a blank chute according to another embodiment.

FIG. 6 is a vertical cross-sectional view of FIG.

FIG. 7 is a view similar to FIG. 2, showing a blank chute in which the blank mounting portion is rotatable up and down with respect to the legs.

[Explanation of symbols]

 1 column 2, 2'moving bolster 4 blank supply device 5, 40, 60 blank chute 8 feed bar 10 fingers 14, 41, 61 leg part 15, 42, 62 blank mounting part A press working position B, C mold replacement position

Claims (2)

[Scope of utility model registration request] 1. A blank chute on which a blank fed from a blank feeding device is placed, a feed bar for sandwiching the blank placed on the blank chute with fingers and sending it to each processing stage, and a press machine. In a transfer press machine having a moving bolster capable of reciprocating between a press working position inside and a die exchange position outside the press machine, the blank chute is attached to the moving bolster. machine. 2. The transfer press machine according to claim 1, wherein the blank chute has a leg portion fixed to the moving bolster, and a horizontal blank mounting portion provided on an upper portion of the leg portion. A transfer press machine is characterized in that the blank mounting portion is vertically rotatably connected to the leg portion.