JPH01266995A - Press line - Google Patents

Abstract

PURPOSE:To form the press line having plural forming stages by one unit of press main body by providing the die moving device moving plural dies together with the die base to a forming position at the left part of a press main body, and a feed bar. CONSTITUTION:The die base 5 freely movable by a die moving device 4 is provided at the upper side of a bolster 2. The die moving device 4 has a traverse frame 4a at almost the same height with the bolster 2 upper face at the left part of a press main body 1 and a die base 5 is mounted freely movably via a wheel on the guide rail 4b laid on this traverse frame 4a. The compression means of a disk spring, etc., is interposed between the wheel and die base 5 and when a pressurizing force is acted on the die base 5 at forming time, the compression means is compressed and the die base 5 is seated on the bolster 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a press line suitable for molding products with a small production volume.

[Conventional technology]

Conventional press lines that carry out the entire process from delivery to finished product in one step include tandem press lines and press lines that use lance presses.

[Invention or problem to be solved]

However, the pressurizing capacity of both press lines (total of 51
) was large and expensive, making it unsuitable for molding products with low production volumes.

This invention was made in response to a lawsuit over the above-mentioned defects, and is intended to provide a press line suitable for molding products of low production volume at a low price.

[Means and effects for solving the problem] This invention has the above-mentioned [In order to achieve the above object, a plurality of molds installed in the press body on the left side of the press body are sequentially moved together with a die base to a molding position. A feeder device is equipped with a moving mold moving device and a foot bar that operates in three dimensions, and this feed bar carries the workpiece to the molding position, and a feeder device that transfers the workpiece to the mold that is sequentially moved to the molding position, and the completion of molding. By providing a product transport means for transporting the product from the product transport position to the product discharge position, it is possible to configure a press line having a plurality of molding processes with one press body.

〔Example〕

An embodiment of this invention will be described in detail with reference to the drawings.

In the figure, 1 is the press body, and a slide 3 that can be moved up and down by a slide drive mechanism (not shown) is placed above the holster 2.
have.

1. A die base 5 is provided above the holster 2 and is movable by a die moving device 4.

2. The mold moving device 4 has a horizontal frame 4a on the left side of the press body 1 at approximately the same height as the top surface of the holster 2, and a guide rail 4 laid on this horizontal frame 4a.
The above die base 5 is attached to b l via wheels (not shown).
In addition, a compression means such as a disc spring is interposed between the wheels and the die base 5, and when a pressurizing force is applied to the die base 5 during molding, the compression means is compressed and the die base 5 is compressed. It is designed to be seated in the ``Holster 2''.

Also, a support stand 4c that supports one end side of the horizontal frame 4a.
There is a feed motor 6 (= 1 piece) consisting of Zarho motor, and this feed motor 6 moves the kite rail 4b.
A hole screw 1lill17 provided above and parallel to this is adapted to be rotated.

The pole screw shaft 7, marked 2, has a die base 5, marked 2.
”Secondly, the nut member 8c fixed to one end of the die set 8
They are screwed together, and the die set 5 is moved through the die set 8 as the hole screw 7 rotates.

The die set 8 consists of a lower die set 8a provided on the die base 5, and an upper die set 8b provided above the lower die set 8a. is equipped with a spring cylinder or an air cylinder (= 1 force means 9, and an upper die set 8
b is elastically supported, and the lower mold Daicera h 8 a
1. and 2" on the surface facing the 2-mold die set 8b, the lower mold 1. For example, three sets of molds consisting of Oa and upper mold 10b]
0 are attached at equal intervals.

Furthermore, a mold changing device] 2 is installed on both sides of the mold moving device 4.

The above-mentioned mold changing device]2 has a mold changing position 1.2a above the horizontal frame 4a, and on both sides there are blowing mold preparation positions 12b for preparing the mold to be used next, and a blowing mold preparation position 12b for preparing the mold to be used next. The current mold take-out position] 2C is used to take out the current mold]0, and the blowing mold preparation position]-2b side has a mold exchanging position 1.2a that is stopped at the mold exchanging position when exchanging the mold. The mold 10 lifted by the die lifter 5a provided on the base 5 is moved to the current mold removal position], 2c, and the mold 10 to be used next is moved together with the die set 8 to the mold exchange position 1.
2 Extrusion cylinder 13 for extruding molds to replace each a
or installed.

Note that 12d and 1-2e in the figure indicate roller conveyors for facilitating movement of the mold 10.

On the other hand, on the rear side of the press body 1, a feeder device 15 that operates in three dimensions is installed.

The feeder device 15 has a pair of feed bars 16 in a direction perpendicular to the moving direction of the die base 5, and these feed bars 16 are clamped and unloaded by a clamp and lift mechanism (not shown) provided in a clamp lift box 17. It is designed to be moved in the clamp direction and lift/down direction.

In addition, the rear end of each feed bar 16 is moved to a feed midpoint position 1 by a feed mechanism (not shown) provided in a feed hook (1) attached to the rear surface of the press body (1).
5, advance end 152, return end 153,
It is designed to be moved to four stages: a retreat position when replacing the mold and a product ejection position 154, and the feeder is set to 1.
Fingers 16a are provided on the front end sides of the blanks 6 at positions facing each other for clamping the workpiece 20 carried into the blank carrying position shown in FIG.
The work 20 clamped by 6a is carried onto the mold Oa, which is stopped at the molding position with the foot movement of the foot par 16.

The completed product 20', which has gone through a predetermined molding process at the molding position, is returned to the original position from the die set 8 together with the die base 5. 21, or the product is conveyed to the output chute 23 at the rear of the press body 1 by the conveyor 22 provided at the product discharge position 154, and then exited through the product discharge chute 23 to the outside of the press body. This is a method that allows it to be discharged.

Next, to explain the operation, the workpiece 20 carried into the blank supply position 19 is clamped by the fingers 16a of the feed bar 16 that moves three-dimensionally and is conveyed to the molding position, and No. 1 mold is placed on standby at the molding position. 10 lower mold 1
It is placed on 0a j4.

After that, the slide 3 descends from the top dead center position and pushes down the upper mold 10b together with the upper mold die set 8b. Work between Oa 2
0 is performed for the first time, and as the slide 3 rises, the upper mold 10b also rises, and the fee 1;'/ The workpiece 20 is grounded to a position where it does not interfere.

Thereafter, the feed motor 6 rotates the hole screw 7, moves the tie set 8 together with the die base 5 one pitch to the right (see FIG. 2), and sets the No. 2 mold 10 to the molding position.

Then, as Sly I/3 descends, No. 2 mold 10
When the molding is completed, repeat the above operation again and set the No. 3 mold 10 to the molding position, and perform the third molding with the No. 3 mold] O. When the forming process is completed, the feed bar 16 is conveyed to the product discharge position 154, unclamped and discharged from the chute 23 via the product discharge conveyor 22, or alternatively, the die set 8 is simultaneously returned to the original position together with the die base 5. The product 20' is knocked out from the No. 3 mold 10 and extruded from the mold 10 to the product 17 position by the product extrusion device 21 installed on the side.

Incidentally, a timing chart of the bipedal motion is shown in FIG.

"One press body is created by repeating the two-legged motion]
This makes it possible to automatically perform continuous molding of the workpiece 20 over a plurality of steps.

On the other hand, when replacing the currently used mold] 0 with another mold 10, first move the feed bar 16 to the retracted position 154 at the time of mold replacement, and then use the feed motor 6 to move the pole screw 7. , and move the die base 5 to the mold exchange position 12a.

Next, lift the mold together with the die set 8 using the die lifter provided on the die base 5, and push it to the current mold take-out position 12C using the extrusion cylinder 3 for mold replacement. Preparation positions 1 and 2 Molds prepared at b to be used next]
．． 2a and set it on the die base 5.

By carrying the die base 5 into the press body, the mold 10 can be easily replaced.

〔Effect of the invention〕

As described in detail above, this invention allows multiple molding steps to be performed automatically and continuously using one press body.
Compared to the conventional press line made up of multiple presses, the press line can be constructed at a lower cost, and
It is possible to significantly reduce production costs when producing products in small quantities.

In addition, it is economical because the press line can be easily installed in a small space, and it is also easy to take out the product because the molded product is transported by the product transport means and discharged outside the press body. become.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a side view, FIG. 4 is a plan view of the product extrusion device ζ1, and FIG. It is a timing chart showing the operation. 1 is a press body, 4 is a mold moving device, 5 is a die base,
] O is a mold, 15 is a feeder, 16 is a feed bar, and 21 is a product extrusion device. Applicant Komatsu Manufacturing Co., Ltd. Representative Patent Attorney Masaaki Yonehara

Claims (2)

[Claims] (1) A mold moving device 4 that is installed on the left side of the press body 1 and that sequentially moves a plurality of molds 10 provided inside the press body 1 to the molding position together with the die base 5, and operates in three dimensions. A feeder device 15 is equipped with a feed bar 16, and carries a work 20 to a molding position using the feed bar 16, and transfers the work 20 to the mold 10 that is sequentially moved to the molding position, and a feeder device 15 that transports a molded product 20'. A press line comprising a product conveying means for conveying a product from a product discharge position to a product discharge position and discharging the product to the outside of the press body 1 from a product discharge chute 23. (2) The press line according to claim 1, further comprising a product extrusion device 21 installed near the product transport position for extruding the molded product 20' from within the mold 10 to the product transport position.