SU393085A1 - DEVICE FOR FASTENING MATERIALS - Google Patents

Description

I

The invention relates to devices for fastening materials with staples.

A device is known for fastening materials with staples, for example, wire, containing; its mechanisms for unwinding, straightening and cutting the wire, the mechanism for forming and fixing the staples and the mechanism for feeding materials. However, this device is only intended to work with staples that have straight shank.

The proposed device allows an increase in labor productivity and the ability to fasten materials with staples with both straight and curved ends.

This is achieved by the fact that the mechanism for forming and fixing the brackets contains two rigidly connected coaxial discs, having on the surfaces facing one another, grooves under the brackets, and two pushers located between the discs and mounted with the possibility of movement in the slots. The grooves can be made curvilinear, and the pushers are pivotally connected to each other, and can also be made on molipine ones, and the pushers are rigidly connected to each other.

FIG. 1 shows the kinematic scheme of the device proposed; in fig. 2 — disks with pushers when materials are fastened with brackets with curved ends; in fig. 3 - the same, when bonding materials

staples with straight ends; pas figs. 4 is the same at the time of formation of the staple.

The device contains a mechanism for unwinding 1 wire 2, a mechanism for straightening 3, mechanisms

feed 4 and wire cutting 5, a mechanism for forming a bracket and fixing it in material 6. This mechanism consists of two rigidly connected discs 7, the distance between which is equal to the back of the bracket with less two wire diameters, and on the inner surfaces (facing one another) grooves 8 are made, which can be made both curvilinear to fasten the material with brackets with curved ends, and straight lines to fasten the material with brackets to straight ends. At the same time, curvilinear and straight molipase 8 on the disks 7 are located one against the other and form pairs.

The device also contains pushers 9 and 10 located between the disks 7, moving in the grooves 8 and interconnected pivotally (see Fig. 2) when working with brackets with curved ends or rigidly

(see Fig. 3) when working with straps with straight ends, the anvil 11, having a special groove for bending the ends of the bracket after piercing the material 6, the overtaking mechanism 12 for providing a zeroing

disk drive 7 and the material feed mechanism. The latter contains a movable table 13, adjustable by the size of the pitch of the binding of the screw mechanism 14 by means of the screw mechanism 14.

The proposed device works as follows.

The material 6 is placed on the movable table 13 so that the axial line of the future seam passes over the ends of the disks 7 where the pusher 10 is located. Moving the table 13 with the material 6 by the size of the fastening pitch occurs simultaneously with the feeding of the wire 2 pas turn the dial 7 180 °.

The wire 2 by means of the feeding mechanism 4 from the unwinding mechanism 1 through the mechanism 3 and the mechanism 5 enters the gap between the ends of the discs 7 and the pusher 9. With the movement of the table 13, the wire 2 feeding and the discs 7 turning off, the mechanism 5 cuts the wire blank for the bracket A and the anvil 11 presses the fastened material 6 against the ends of the disks 7, after which the pushers 9 and 10 begin simultaneous movement.

The pusher 9, the entrance between the discs 7, pulls the wire clamp 2 into the grooves 8, forms the bracket, and the pusher 10 presses the bracket formed and fed to it by turning the disks 7 by 180 ° in the previous cycle of the device and pushes it out of the grooves 8. At the same time, the ends of the staple pierce the material 6 and bend in a special dimple of the anvil 11. After in one pair of grooves 8 of the discs 7 the staple is pushed out and it holds the material 6 together, both the pushers 9 and 10

occupy the initial position, and the anvil 11 moves away from the ends of the discs 7, releasing the material G fastened in this place. Then the table 13 is moved with the material 6 to the fastener pin, the wire is fed to the size of the staple blank, the disks 7 are rotated 180 Call 8.

Subject invention

Claims (3)

1. A device for fastening materials with staples, for example, wire, containing mechanisms for unwinding, straightening and cutting the wire, the mechanism for forming and fixing the bracket and the mechanism for feeding materials, characterized in that, in order to increase the productivity of labor, the mechanism for forming and fixing the brackets contains two connected coaxial discs having on the surfaces facing one another, grooves under the brackets, and two pushers located between the disks and installed with the possibility of movement in the grooves. 2. The device according to claim 1, characterized in that, in order to enable fastening materials with brackets with curved ends, grooves in the discs are curvilinear, and pushers are hingedly interconnected. 3. A device according to claim 1, characterized in that, in order to allow materials to be fastened with straps to straight ends, the slots in the discs are made straight, and the tappets are rigidly interconnected.