JP2000135529A - Transfer feeder bar receiving device and dividing method of transfer bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer feeder bar receiving device and a transfer bar dividing method of a simple structure and low cost wherein a bottom face of a transfer bar and an upper face of a receiving table are not abraded, and neither of an electric wiring nor air piping is necessary. SOLUTION: This is referred to a transfer feeder bar receiving device having plural bar receiving tables 10 installed to a die set 3 for supporting a transfer bar 7 divided in a press main body 1, while the die set is freely coming out or coming into the press main body. The bar receiving stand 10 comprises plural intermediate blocks 13 installed at a position lower than a divided height of the transfer bar 7, and plural bar receiving members 14 installed at an upper face of the intermediate block 13 freely detachably by a spigot part 15 in a way that the upper face of the receiving member 14 is set to be at a divided height. Since a bottom face of the transfer bar 7 and an upper face of the bar receiving member 14 do not contact slidably during the operation, the contacting face of the bar 7 and the member 14 do not wear, resulting in that the transfer accuracy is not deteriorated or noise is not generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bar receiving device for a transfer feeder provided in a transfer press and a method for dividing a transfer bar.

[0002]

2. Description of the Related Art Conventionally, a transfer press has a plurality of processing stations, and forms a work while sequentially transferring the work to these processing stations.
A transfer feeder for transporting a work is provided in the press body.

A transfer feeder for transferring a work has a pair of transfer bars arranged side by side in the work transfer direction. Fingers for clamping the work are provided on opposing surfaces of the transfer bars. When exchanging the dies, a part of the transfer bar is taken out of the press body together with the die set, and the fingers are exchanged by external setup.

For this reason, a bar support for supporting the divided transfer bar is provided on the die set side, and various structures of the bar support have been proposed. For example, in Japanese Patent Application Laid-Open No. Hei 2-217122, a bar support is erected on a lower die set, the divided transfer bars are placed on the bar support, and the transfer bar is transferred from the press body together with the die set. A method of dividing a transfer bar in which a finger is exchanged in an external setup by carrying out is described.

In Japanese Utility Model Publication No. 7-47152, a guide rod is provided so as to be vertically movable above a support member provided on a side surface of a moving bolster.
A bar receiving device of a transfer feeder provided with a bar receiving base for supporting a transfer bar from below is described.

On the other hand, in Japanese Utility Model Laid-Open No. 60-66637,
There is described an automatic transfer bar connecting device in which a transfer bar that has been forcibly unclamped is lifted by a die lifter, placed on a bar receiving table, and then divided.

[0007]

SUMMARY OF THE INVENTION
In the bar receiver described in Japanese Patent No. 217122, when the transfer bar moves in the return and clamp / unclamping directions, the bottom surface of the transfer feeder moves while slidingly contacting the upper surface of the bar receiver. The top surface of the table wears out early, creating a gap between them, and when the transfer bar moves, this gap causes backlash, which reduces transport accuracy and causes problems such as noise. there were.

Further, if the upper surface of the bar cradle wears, the transfer bar cannot be supported when the transfer bar is divided, so that the bar cannot be divided.

On the other hand, in the bar receiving device disclosed in Japanese Utility Model Publication No. 7-47152, the problem described in the former publication can be avoided by lowering the bar receiving base when the transfer feeder is operated. Therefore, it requires a detecting means for detecting the ascending and descending position of the bar cradle, electric wiring for interlocking, air piping for raising and lowering the bar cradle, etc.
In addition, there was a problem such as becoming expensive.

Further, in the automatic transfer bar connecting device disclosed in Japanese Utility Model Application Laid-Open No. 60-66637, the transfer bar lifted by the die lifter is inserted from above into a pin protruding from the upper surface of the bar receiving stand. The extra lift stroke of the die lifter is required by the height of the pin, which requires a large lift stroke for the die lifter, making the die lifter expensive. Since the finger interferes with the mold, it is necessary to cut out a part of the mold to prevent the mold from interfering with the finger.As a result, the rigidity of the mold decreases and a large molding load is applied. There are disadvantages such as disappearance or cracks in the mold to shorten the life of the mold early.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a conventional problem. The transfer feeder which does not wear the bottom surface of the transfer bar or the top surface of the bar cradle and does not require electric wiring or air piping. It is an object of the present invention to provide a bar receiving device and a transfer bar dividing method with a simple configuration at a low cost.

[0012]

Means for Solving the Problems and Effects of the Invention In order to achieve the above object, the invention according to claim 1 is a method for supporting a plurality of transfer bars divided in a press body by a die set which can be put in and out of the press body. In the bar receiving device of the transfer feeder provided with the bar receiving base, the bar receiving base can be detachably mounted on the upper surface of the intermediate block by a plurality of intermediate blocks provided at a position lower than the dividing height of the transfer bar. Mounted on
Further, it is constituted by a plurality of bar receiving members whose upper surfaces are set to have a division height.

According to the above configuration, the transfer bar is placed on the bar receiving member only when the transfer bar is divided,
During operation of the transfer feeder, the bottom surface of the transfer bar does not slide on the upper surface of the bar receiving member, so that the contact surface between the transfer bar and the bar receiving member does not wear out, thereby lowering the transfer accuracy and reducing noise. The conventional problems such as the occurrence of the problem can be solved.

Also, since the upper surface of the bar receiving member is not worn to cause problems such as inability to divide the transfer bar, the reliability is improved, and the bar receiving member is mounted on the intermediate block by a spigot. Can be attached and detached without using tools,
This can reduce the setup time,
The press operation rate can be improved.

Further, since there is no need for a detecting means for moving the bar receiving member up and down and for detecting the position, no air piping or electric wiring is required, whereby the bar receiving device can be provided at low cost and the structure is simplified. Therefore, a large work space can be obtained, thereby improving setup and maintenance.

Further, since it is not necessary to provide a notch on the die set side to avoid interference with the finger, the structure and shape of the die set are less restricted and the life of the die is reduced. In addition, the transfer bar does not need to be unclamped to a position where the finger does not interfere with the die set, so that the die set can be reduced in size and the price can be reduced accordingly.

According to a second aspect of the present invention, an interlock means for interlocking the dividing operation of the transfer bar is connected to at least one of the bar receiving members.

According to the above configuration, since the transfer bar cannot be divided without inserting the bar receiving member between the intermediate block and the transfer bar, it is possible to prevent an erroneous operation such as dividing the transfer bar without inserting the bar receiving member. it can.

According to a third aspect of the present invention, a bar receiving member is connected to a die set block that can be mounted on a guide post of the die set via a cable.

According to the above configuration, when the die set is replaced, the die set block to be mounted on the guide post and the bar receiving member are connected by the cable, so that the transfer bar is divided by forgetting to attach the bar receiving member. It is possible to prevent erroneous operations such as.

According to a fourth aspect of the present invention, a transfer bar of a transfer feeder provided on a press body is stopped at a standby point, and then the transfer bar is moved to a forced unclamping position. When the bar is lifted and the bar receiving member is inserted between the transfer bar and the intermediate block, the transfer bar is lowered, the transfer bar is supported on each bar receiving member, and then each transfer bar is divided. The transfer bar supported on the receiving member is carried out from the press body together with the die set.

According to the above-mentioned method, the work of dividing the transfer bar and taking it out of the press body can be performed efficiently in a short time, and the work such as replacement and adjustment of the finger attached to the transfer bar can be performed in the outside setup. Can be performed safely and in a short time.

[0023]

Embodiments of the present invention will be described in detail with reference to the drawings. 1 is a plan view of a transfer press formed by a forging press, FIG. 2 is a front view of the transfer press, FIG. 3 is a plan view of a bar receiving device, and FIG. 4 is a view taken in the direction of arrow X in FIG.

In these figures, reference numeral 1 denotes a press body having a plurality of uprights 1a.
A bolster 2 is installed at the center between them. On the bolster 2, together with the upper mold 3 ₁ and the lower mold 3 ₂ die set 3 consisting of is detachably fixed via a clamp means 4, above the bolster 2, the upper die 3 ₁ vertical A moving slide 5 is provided.

Reference numeral 6 denotes a plurality of, for example, three processing stations W ₁ , W ₂ , W provided on the die set 3.
₃ and a transfer feeder for sequentially transferring a work (not shown) to idle stations I ₁ and I ₂ provided before and after the transfer station, and having a pair of transfer bars 7 arranged in parallel along the work transfer direction A. These transfer bars 7 can be divided into three by two dividing lines 7a and 7b.
Can be carried out of the press body 1 together with the die set 3.

A plurality of fingers 7c for clamping a work are detachably mounted on the opposite surface of the center transfer bar 7 at intervals in the work transfer direction A. By unloading the fingers 7, these fingers 7c can be exchanged during the external setup. The front and rear surfaces of the lower mold 3 ₂ side of the die set 3, one pair, a bar cradle 10 of a total of two pairs are provided at intervals in the longitudinal direction of the transfer bars 7.

[0027] These bar cradle 10, as shown in FIGS. 3 and 4, the intermediate block 13 placed through a shim 12 on a bracket 11 which protrudes from the front and rear surfaces of the lower mold 3 ₂
And a plate-shaped bar receiving member 14 removably mounted on the intermediate block 13.

Further, between the bar receiving member 14 placed on the intermediate block 13 and the intermediate block 13,
5 and a bar 14a is provided at the center of the upper surface of the bar receiving member 14, and these pins 14a are provided on the transfer bar 7 placed on the bar receiving member 14. It fits into a long hole 7d formed on the bottom surface from below. The long hole 7d is formed in the longitudinal direction of the transfer bar 7, so that when the transfer bar 7 is divided, it does not prevent the transfer bar 7 from moving in the longitudinal direction.

On the other hand, among the four bar receiving members 14,
The three bar receiving members 14 are connected to a die set block 18 by a cable 17 such as a chain. Said die set blocks 18 is for supporting the upper die 3 ₁ by engaging a plurality, for example, the lower end outer peripheral portion of the four guide posts 3a for guiding the vertical movement of the upper die 3 _1, die set 3 Is replaced with the guide post 3a.

An interlock plug 19 is connected to the remaining bar receiving member 14 by a cable 17. The plug 19 is attached to a control means (not shown) for controlling the transfer feeder during normal operation, so that an interlock works and the transfer bar 7 cannot be divided.

Next, the operation of the above-configured bar receiving device of the transfer feeder will be described. When exchanging the die set 3, the transfer bar 7 is also carried out of the press body 1 together with the die set 3. First, the press body 1 is stopped at a standby point of the transfer bar 7, and the transfer bar 7 is replaced with a die. Move to the standby point.

When the transfer bar 7 is moved to the forced unclamping position in this state, the transfer bar 7 is moved to the intermediate block 13 mounted on the bracket 11.
Since the transfer bar 7 reaches the upper side, the transfer bar 7 is raised in this state. Next, the four die set blocks 18 are mounted below the guide posts 3a, and the three bar receiving members 14 are fitted to the upper surface of the intermediate block 13 by the spigot portions 15, while the remaining one bar receiving member 14 is fitted. Reference numeral 14 denotes an intermediate block 1 after the interlock plug 19 is removed from the control means.
3 is fitted by the spigot portion 15. This releases the interlock, so the transfer bar 7
Can be divided.

When the mounting of all the bar receiving members 14 and the die set block 18 is completed, the transfer bar 7 is lowered to project into the long holes 7d formed on the bottom surface of the transfer bar 7 and the upper surface of the bar receiving member 14. Pin 1 installed
4a is inserted from below. Next, in this state, each transfer bar 7 is moved in the longitudinal direction, divided by the dividing lines 7a and 7b, and the transfer bar 7 placed on the bar receiving member 14 is moved together with the die set 3 from within the press body 1.
When the die set 3 is exchanged, the transfer bar 7 can also be ejected from the press main body 1 when the die set 3 is exchanged, so that the fingers 7c can be exchanged by external setup.

On the other hand, in order to transfer the transfer bar 7 whose finger 7c has been exchanged together with the die set 3 into the press body 1 by using a transfer means, and to make it operable, the operation reverse to the above is performed. Preferably, when the connection of the transfer bar 7 carried into the press body 1 is completed, the transfer bar 7 is lifted, and the bar receiving member 14 is removed together with the die set block 18. When the plug 19 connected to one bar receiving member 14 is mounted on the control means, an interlock works and the dividing operation of the transfer bar 7 becomes impossible, so that the transfer bar 7 is operated during the operation of the transfer feeder. Malfunctions such as division can be prevented.

During operation of the transfer feeder 6,
Since the bar receiving member 14 is removed, the bottom surface of the transfer bar 7 does not slide on the upper surface of the bar receiving member 14, so that the bottom surface of the transfer bar 7 and the upper surface of the bar receiving member 14 do not wear.

The height of the bar receiving member 14 is adjusted by inserting the shim 12 between the bracket 11 and the intermediate block 13, and the adjustment in the horizontal direction is performed by moving the intermediate block 13 in the horizontal direction. The adjustment may be performed, and after the adjustment, the intermediate block 13 may be fixed by driving a knock pin (not shown) between the intermediate block 13 and the bracket 11.

[Brief description of the drawings]

FIG. 1 is a plan view of a transfer press provided with a bar receiving device according to an embodiment of the present invention.

FIG. 2 is a front view of a transfer press provided with a bar receiving device according to an embodiment of the present invention.

FIG. 3 is a plan view showing a bar receiving device of the transfer feeder according to the embodiment of the present invention.

FIG. 4 is an arrow view from the X direction in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Press body 3 ... Die set 7 ... Transfer bar 10 ... Bar cradle 13 ... Intermediate block 14 ... Bar receiving member 15 ... Inlay part 17 ... Rope 18 ... Die set block

Claims (4)

[Claims] 1. A plurality of bar receivers (10) for supporting a transfer bar (7) divided in a press body (1) are provided in a die set (3) which can be taken in and out of the press body (1). In the transfer feeder bar receiving device, the bar receiving base (10) is provided with a plurality of intermediate blocks (13) provided at a position lower than the dividing height of the transfer bar (7), and an upper surface of the intermediate blocks (13). A bar receiving device for a transfer feeder, comprising a plurality of bar receiving members (14) which are removably mounted on the lower surface by a spigot portion (15) and whose upper surface is set to have a division height. 2. A bar receiving device for a transfer feeder according to claim 1, wherein an interlock means for interlocking a dividing operation of the transfer bar is connected to at least one of the bar receiving members. 3. The bar receiving member (14) is connected to a die set block (18) attachable to a guide post (3a) of the die set (3) via a cable (17). Transfer feeder bar receiving device. 4. The transfer bar (7) of the transfer feeder (6) provided in the press body (1) is stopped at a standby point, and then the transfer bar (7) is moved to a forced unclamping position. Bar (7)
Is lifted, and the bar receiving member (14) is inserted between the transfer bar (7) and the intermediate block (13).
After lowering the transfer bar (7) and supporting the transfer bar (7) on each bar receiving member (14), each transfer bar (7) is divided and supported on the bar receiving member (14). Transferring the transfer bar (7) together with the die set (3) from the press body (1).