JPS6281228A - Guide device for sheet material - Google Patents

Abstract

PURPOSE:To shorten remarkably the set-up time for adjusting an interval of a guide piece by setting in advance the height of plural pieces of stopper pins which have been provided vertically on a base plate, so as to fit the width of a sheet material, and selecting the interval of the guide piece by a rotational position of the base plate. CONSTITUTION:When a metallic die is changed, width of a sheet material is changed to width which fits it. That is to say, when a this side guide piece 1 is drawn to this side by a cylinder 11, a spur tooth 6 also moves to this side. By an operation of this spur tooth 6, an intermediate gear 10 rotates clockwise, and an inner part side guide piece 2 moves backward through a spur tooth 9. Subsequently, the guide width is opened widely by a stroke portion of the cylinder 11 temporarily, and a base plate 17 which has been locked to the this side guide piece 1 is rotated together with an indexing disk 19 and a positioning pin 20. Next, a stopper pin 16 which has been set to width of a sheet material to be punched is elected, and moved forward until it abuts on a stopper 7. When the stopper pin 16 abuts on the stopper 7, the guide width becomes a necessary width.

Description

Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a sheet material guide device, and more particularly to a sheet material guide device suitable for supplying sheet materials or copper strips to processing machines such as punching and drawing machines. .

[Background of the invention]

Generally, when feeding sheet material to a processing machine, guide pieces that hold both ends of the sheet material are provided symmetrically in the positive direction.
With this method, in which the guide piece is adjusted to a predetermined width and then fixed to a fixed member using bolts, etc., the position of the guide piece must be adjusted manually.

The problem was that it took a lot of time to investigate. Therefore, a device has been proposed in which a pair of opposing guide pieces are screwed together, one with a right-hand thread and the other with a left-hand thread, and the distance between the guide pieces is adjusted by rotating the screws. (Unexamined Japanese Patent Publication No. 53-93160
However, in order to improve the spacing accuracy of the guide pieces in such a device, the rotation angle control of the screw becomes complicated, the screw driving means becomes large, and the entire device becomes expensive. .

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sheet material guide device that can easily adjust the guide width according to the sheet material.

[Summary of the invention]

A feature of the present invention is that a first support body and a second support body are each fixed to a pair of guide pieces, and spur teeth are provided on opposite sides of the first support body and the second support body. , these spur teeth are engaged with each other via an intermediate gear, and a rotatable base plate is engaged with a part of the guide piece, and stopper pins with different S lengths are provided upright on this base plate, The purpose is to selectively bring a stopper pin into contact with a stopper provided on a support depending on the rotational position of the substrate, thereby adjusting the width of the pair of guide pins. Therefore, by setting the rotational position of the substrate so that the stopper pin, which is predetermined according to the width of the sheet material, comes into contact with the stopper, the stopper pin can be stopped.

Note that the guide piece driving means may rotate an intermediate gear.

[Embodiments of the Invention] Hereinafter, a sheet material guide device according to the present invention will be described based on drawings of embodiments.

FIG. 1 is a perspective view of the overall configuration, and FIG. 2 is a partial sectional view thereof.

1 is the grooved front guide piece, 2 is the grooved rear guide piece,
Both have U-shaped grooves 4 that are slightly wider than the thickness of the sheet material 3, and these grooves 4 face each other to form a guide for the sheet material 3. Reference numeral 5 denotes a first υ) support body engaged with the front guide piece l, and has flat teeth 6 on its horizontally extending lower surface. This first support body 5 has a stopper 7 for adjusting the guide width vertically below the end thereof. Reference numeral 8 denotes a second support body that engages with the rear guide piece 2 and has spur teeth 9 on its upper surface. 10 is arranged between the spur teeth 6 and the spur teeth 9.

These Q) are intermediate gears that mesh with the spur teeth 6 and 9.

When the front guide piece 1 moves forward, the intermediate gear 10 rotates,
The rear guide piece 2 moves forward by the same distance, and as a result,
The guide width W becomes narrower. Reference numeral 11 denotes a drive source for moving the front guide piece one inch, and the drive source 1 is connected to the support body 5 of the WJl at the front side by, for example, an air cylinder, and is fixed to the frame 12.

Reference numeral 13 is a rod whose both ends are attached to the frame 12. The front guide piece 1 and the rear guide piece 2 are made of smooth VCkJJ or aluminum, and are supported by bearings 1a and 2a, respectively.14 is in the center of the sheet material 3. The provided needle roller bearing supports the sheet material and engages with the support member 15. The support member 15 is fixed to the rod 13 with a block 15'. Numeral 16 is a stopper pin, and a plurality of stopper pins of different lengths are vertically arranged on the rotatable base plate 17 and are attached at the same time. The shaft 18 of the board 17 is connected to the frame 12 and the block 1.
Supported by 5'.

The rotational position is regulated by the index disk 19 and the positioning pin 20 (an electric type may be used). Multiple stopper pins 1
6, the height is adjusted according to the width of the sheet material 30.

Next, the operation of the guide device configured as described above will be explained.

For example, in the case of iron core square cutting, the width of the sheet material varies depending on the output. For this reason, it is necessary to change the width to match this when replacing the mold. In this case, when the front guide piece 1 is pulled toward the front by the cylinder 11, the spur teeth 6 also move toward the front. The intermediate gear 10 rotates clockwise due to the operation of the spur teeth 6, and the rear guide piece 2 is moved backward via the spur teeth 9. Next, the guide width is made wider by the stroke of the cylinder 11.
rotate with. Next, the stopper pin 16 set to the width of the sheet material to be punched is selected and rotated to a position facing the stopper 7.Then, the cylinder 11 is operated and the stopper pin 16 is moved forward until the stopper pin 16 comes into contact with the stopper 7. When it comes into contact with the stopper 7, the guide width becomes the required width.

Next, the motion transmission mechanism of the spur teeth 6 and the spur teeth 9 will be explained. The intermediate gear 10 disposed between the spur teeth 6 and the spur teeth 9 may be a single gear formed of one type of member. Further, as shown in FIGS. 3 and 4, the tooth profile (Ll
) A second intermediate gear 10' formed of a separate member having more elasticity than the intermediate gear 10 and having a slightly thicker tooth profile (L2) than the intermediate gear 10 is fixed in parallel to the same shaft 22 and configured in a state in which they are in close contact with each other. Good too. With this configuration, the backlash between the spur teeth 6.9 and the intermediate gears 10 and 10' is reduced, and the movement of the guide pieces 1 and 2 becomes smooth.

Although the above operation has been described for the case where the guide width is adjusted by the movement of the cylinder 11, the driving means is not limited to this, and it goes without saying that the gear shaft 22 may be rotated, for example.

〔Effect of the invention〕

According to the present invention, by setting the height of the plurality of stopper pins erected on the substrate in advance to adapt to the width of the sheet material, the interval between the guide pieces can be easily adjusted depending on the rotational position of the substrate. Since you can select the guide piece spacing, you can significantly shorten the setup time for adjusting the guide piece spacing, and you can also obtain an inexpensive device with a simple configuration.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a sheet material guide device of the present invention;
2 is a partially cutaway side view of FIG. 1, FIG. 3 is a perspective view of a main part explaining the operation of FIG. 1, and FIG. 4 is a partial side view of FIG. 3.

Claims (1)

[Claims] 1. A pair of guide pieces that hold both ends of the sheet material, a first support that is fixed to one of these guide pieces and has spur teeth on the lower surface and a stopper at the end, and a first support that is fixed to the other guide piece. a second support having spur teeth on its upper surface;
an intermediate gear located between the support body and the second support body and meshing with the respective spur teeth; a rotatable base plate that is locked to one of the guide pieces; and an intermediate gear that is erected on the base plate. What is claimed is: 1. A guide device for a sheet material, comprising stopper pins of different lengths, the stopper pin being brought into selective contact with the stopper depending on the rotational position of the substrate, thereby increasing or decreasing the width of the pair of guide pieces.