JPS61219434A - Device for feeding termination of coil stock in press forming machine - Google Patents

Abstract

PURPOSE:To perform mechanically and simply the termination feeding of a coil material by pressure-welding with pinching by a clamp mechanism feeding roller and pinching roller on the upper and lower faces of the coil material and by rotating these in the transfer direction of the coil material by a driving mechanism. CONSTITUTION:A feeding roller 44 and pinching roller 46 are pinched with press-contacting to the surface of a coil material by the clamp mechanism made of a cylinder 52, etc. in the termination feeding device 30 of the coil material made by bearing respectively by a feeding shaft 40 and driven shaft 42 the both ends of the feeding roller 44 and pinching roller 46 to oppose to the upper and lower faces of the coil material on the frame 32, 34 which are arranged by intersecting at right angles in the transfer direction of the coil material close to the metal die of a press forming machine. Said both shafts 40, 42 are linked via a pair of gears 50 of the same diameter at the end part and transfer to the metal die side of the press forming machine the coil material of which an automatic feeding is stopped by turning over both rollers 44, 46 by the driving of a feeding handle 48.

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a press forming machine for mechanically feeding the end of a coil material to a mold after automatic feeding by a coil feeder stops near the end of the coil material. The present invention relates to a terminal feeding device for coil material.

(Prior Art and its Problems) For example, in a progressive mold, etc., the coil material is sequentially fed for each shot of the press molding machine.

In this type of molding machine, automatic feeding by the coil feeder stops near the end of the coil material. Since the distance between the coil feeder and the mold is generally long and the end length is considerable, conventional methods have been to reduce the amount of material by feeding the coil directly by hand when the transfer is stopped.

However, in this operation, the operator must carry out the transfer operation while holding one end of the coil material in the width direction, and the coil material is likely to shift diagonally with respect to the transfer direction, causing a decrease in yield.

In addition, if the weight is heavy, the weight is 2 Å or more, and it is carried by holding it at both ends, but this is an inefficient process considering the amount of labor involved.

(Objective of the Invention) An object of the present invention is to reduce labor by mechanically performing the end-feeding operation of the coil material, and to prevent a decrease in yield due to misalignment or the like.

(Structure of the Invention) In order to achieve the above object, the present invention includes a frame disposed near a mold of a press molding machine and disposed perpendicular to the direction of conveyance of the material, and a frame having both ends pivoted on the frame, In addition, a feed roller and a pinch roller facing the upper and lower surfaces of the coil material, a clamp mechanism and a feed roller for pressing the pinch roller against the surface of the coil material and sandwiching the coil material between the feed roller and the pinch roller are provided. It is characterized by comprising a drive mechanism that rotates in the transfer direction.

(Description of Embodiment) Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is a side view schematically showing a progressive press molding apparatus to which the present invention is applied.

The forming apparatus in the figure includes a press forming machine 10, a coil material holding device 26 disposed on one side of the press forming machine 10, and a coil material 24 fed from the holding device 26 and transferring the coil material 24 into the forming machine 10. It consists of a feeder 28.

Press molding 1110 includes frame 1 such as frame 1\12, etc.
A lower mold 16 located at the bottom of 2 and separated by a bolster 14
The upper die 20 is located on the ground part of the frame 12 and is fixed to the face of the ram 18, and the lower drive part 22 and the coil material supply end Art part of the lower die 16 are provided on the frame 120. It consists of an end feeding device 30 fixed to a bolster 14.

The coil material 24 is introduced into the inside of the press molding machine 10 from one side, passes through a guide plate 30 a provided at the tip of the end feeding device 30 , and is supplied to the lower die 160 .

Then, the coil feeder 28 transports the coil material 24 at a predetermined stroke for each press forming operation of the molding machine,
Press molding is performed one after another.

After the coil material 24 is consumed by the forming and the terminal end of the coil material 24 passes through the =1il feeder 28, automatic feeding is stopped.

By operating the end feeding device 30 at this stage, the coil material 24 can be used as a forming material without wasting it until the end.

FIG. 2 is a perspective view showing details of the end feed device 30.

In the figure, the device 30 includes a fixed frame 32, a main body frame 34 removably held on both sides of the fixed room 32, and a main body frame 34 on the fixed frame 32.
A pair of height adjustment jacks 36 supporting the lower part of the fixed frame 32 and a bracket 38 for mounting a bolster integrated with the lower part of the fixed frame 32 are provided.

The jack 36 is connected to the drive shaft 36a and
An operating handle 36b is fixed to the side protruding end of the fixed frame 32 of 6a, and the vertical position of the main body frame 34 is adjusted by operating the handle 36b to match the height position of the coil material 24 passing inside the main body frame 34. That's what I do.

The main body frame 34 has a rectangular frame shape, in which a feed shaft 40 and driven shirts 1 to 42 parallel to the lower part of the feed shaft 40 are arranged, and each shaft 4
0.42 is rotatably supported on both sides of the main body frame 34.

The feed shirt 1-40 has a plurality of feed mills 44.
are fixed on the same axis. Further, a plurality of pinch rollers 46 are coaxially fixed to the driven shutter 42 so as to be in contact with each of the feed rollers 44 .

The feed roller 44 and pinch roller 46 are
This pinches both sides of the coil material 24 passing through the coil member 34.

Then, the main body frame 34 of the feed shaft 40
An operating handle 48 is fixed to the protruding end from the.

The feed shaft 40 and the driven shaft 42 are connected via a pair of gears 50 of the same diameter, and as a result of the operation of the handle 40, both rollers 44.46 are driven in reverse, causing a pinch between the rollers 44.46. The mold material 24 is transferred to the mold side.

Furthermore, each pinch roller 46 is connected to a plurality of pneumatic cylinders 52 for clamping fixed to the lower part of the main body frame 34, and when the cylinders 52 are not driven, a gap is formed between them and the feed roller 44, and the coil material 24 is The coil material 24 is brought into an unclamped state and pushed up by the driving of the cylinder 52 to pinch the coil material 24.

FIG. 3 shows its specific configuration.

In the figure, a pressing block 56 is integrated with the upper end of a plunger 54 that projects above the cylinder 52.

In the pressing block 56, a pair of pressing rollers 58 are arranged opposite to the lower surface of the pinch roller 46, and when the cylinder 52 is driven, the pressing roller 558 pushes up the pinch roller 46 with a constant pressure.

Note that each cylinder 52 is provided with a pressure regulating valve (flash valve) to keep the clamping pressure uniform in each part.

Further, the middle part of the feed shaft 40 is connected to the main body frame 3.
It is pivotally supported by a pair of brackets 1-60 that are vertically installed on the upper part of 4. A brake spring 62 is interposed between the end surface of the bracket 60 and the feed roller 44.

The spring 62 holds the coil material 24 with a brake when the coil material 24 is sent to a predetermined position.

In other words, the sent coil material 24 is accurately positioned by the hole location 1 to the mold location pin, and the spring 62 performs braking within a range that allows monthly movement during pressing.

It should be noted that the gear 50 is not necessarily required since the pinch roller 46 only needs to be rotated as a result of the rotation of the feed roller 44.

Next, how to use the end feed device 30 having the above configuration will be explained.

First, the fixing room 32 of the device 30 is installed on the bolster 14 via the bolster mounting bracket 38, and the height of the main body frame 371 is adjusted to the height of the coil material 24 by operating the handle 36b, as shown in FIG. like device 30
The arrangement of is determined. When there is a sufficient amount of coil material 24 in stock and the coil feeder 28 is intermittently transferring the coil material, if the cylinder 52 is left in a non-driving state, there will be a sufficient gap between the feed roller 44 and the pinch roller 46, and the coil material will be transferred. 24 is automatically transferred to the mold side through this gap.

When the cylinder 52 is driven when the coil material 24 is consumed and automatic feeding by the coil feeder 28 is stopped, the pinch roller 46 is pushed up and the coil material 24 is pinched between the pinch roller 46 and the feed roller 44.

After pinching, by rotating the handle 48 by a certain amount for each forming operation, each roller 44, 4' is rotated as shown by the arrow in FIG.
6 rotates to move the coil material 24 toward the mold.

In other words, conventionally, when the coil material was manually fed to the end detection mold side, it was a simple process. 2. A. It can be transferred only by optical rotation operation, and since each part of the coil material is pinched with an average pinching force, accurate transfer is possible without meandering in the transfer direction.

In the embodiment, the transfer operation was performed by rotating the handle 48, but the feed shaft 40 is connected to an intermittent rotation transmission mechanism that is linked to the drive unit 22, and the feed shaft 40 is connected to an intermittent rotation transmission mechanism that synchronizes with each shot of the mold to maintain a constant pitch. It may also be rotated by.

(Effect of the invention i) As explained above, in this invention, the terminal end of the coil material can be fed mechanically, so the labor can be drastically reduced compared to the conventional method of feeding it manually. Since it can be fed accurately, the yield can be improved.

[Brief explanation of the drawing]

Figure 11. 2 is a schematic side view of a press molding device to which the present invention is applied, FIG. 2 is a perspective view of the end feed device according to the present invention, and FIG. 3 is a sectional view of a main part taken along the line ■-■ in FIG. 10...Press molding machine, 16...Lower mold, 2o...
Upper mold, 24... Coil material, 30... End feeding device,
32...Fixed frame, 34...Body frame, 4
4...Feed roller, 46...Pinch roller, 4
8... Feed handle (drive mechanism), 52.54.
56... Clamp mechanism (52... cylinder, 54...
...Plunger. 56...-press roller).

Claims (1)

[Claims] A frame is located near the mold of a press forming machine and is arranged perpendicular to the direction in which the coil material is transferred; a feed roller and a pinch roller that are pivotally supported at both ends of the frame and face the top and bottom surfaces of the coil material; Press forming characterized by comprising a clamp mechanism for pressing a roller against the surface of a coil material and sandwiching the coil material between a feed roller and a pinch roller, and a drive mechanism for rotating the feed roller in a direction in which the coil material is transferred. A terminal feeding device for coil material in a machine.