SU142280A1 - Automatic punching machine from tape - Google Patents

Description

Automatic machines are known for stamping special shaped articles from a tape in bending, punching, drawing dies, including volatile ones, with the tape being fed by rollers.

However, the known machines do not provide the required performance. In the proposed machine, these disadvantages are not. This is achieved by the fact that the rolls are made profiled and at the same time are used to feed the tape into the dies and corrugate it.

FIG. 1 shows a diagram of the proposed machine; in fig. 2 proposed machine; in fig. 3 shows an embodiment of a circuit machine for loop-shaped springs.

Continuously vrashayush, ies feed rollers / tape is inserted into the stamp 2, forming the contour of the part and punching holes in it. The workpieces connected by their ends are fed by profiling rollers 3 to the stamp 4. The rollers themselves perform the first bending operation. Stamp 4 performs two bending operations. Then the centerpiece of the blanks is set by a pair of profiling rollers 5, which feed the blanks under the rotating cutting knife 6, which cuts off the finished parts from the chain on the matrix 7. Such a direction of the tape in the machine is carried out using guide frames. The guide frames 8, 9, 10, P, 12, 13 are located between the dies and frames 14 and 1 o. Guides and profiling frames provide accurate guidance and feed of tape material. The belt has continuous contact with rollers that rotate at a constant speed. The eccentrics that drive the upper and lower blocks of dies into rotation are designed so that No. 142280 2 would have a horizontal component of the velocity vector of the circumferential speed of the dies equal to the feed speed of the tape. This made it possible to produce Yyo-tal: -in IV class of accuracy.

Option .hemy ,. The automat is intended for the manufacture of loop springs. The profiling rollers 16, / 7, rotate periodically, while moving, push the material belt forward. Periodic rotational movement of the rollers is obtained from the Maltese mechanism 18, 19. While the rollers are at rest, the belt is machined with tools for linear movement: the punch 20 cuts off one workpiece and winds it onto the mandrel 21, the puller 22 removes the finished part from mandrels. The straight-line tools are driven by the cams located on the main shaft, with assistance levers.

The proposed machine is new and can be effectively used for the mass production of small parts that do not require high precision manufacturing from roll tape up to 0.5 mm thick, the width of which corresponds to the width of the manufactured product.

A small amount of cutting (0.3-0.5 mm allows the use of stamps with a small stroke, which makes it possible to increase the number of strokes of the machine.

The above stamping machine is manufactured and tested under production conditions. During the tests, over 4,000,000 parts were stamped. Tests have shown that the machine works flawlessly and has a performance of 400 parts per minute. The parts stamped by the machine fully correspond to the drawing.

Subject invention

A machine for punching out special-shaped tape products in bending, punching, exhaust, etc. dies, including volatiles, with a tape fed by rollers, characterized in that in order to increase productivity, the rollers are made profiled.

Rig.Z