High-frequency start-stop traction system

Abstract

The invention discloses a high-frequency start and stop traction system. The high-frequency start and stop traction system comprises a magnetic track and a support mechanism matched with the magnetic track, wherein an iron core coil is arranged in the magnetic track; a material strip clamping mechanism is arranged on the support mechanism; a plurality of upper clamping jaws and a plurality of lower clamping jaws, which work together, are fixedly arranged on the material strip clamping mechanism; a plurality of vacuum suckers are arranged on the upper clamping jaws or the lower clamping jaws; and the upper clamping jaws or the lower clamping jaws can move up and down to clamp a material strip. Owing to the function of the vacuum suckers, the clamping force of the upper and lower clamping jaws and the material strip can be controlled to prevent the material strip from being crushed by an excessively large clamping force and also to prevent the surface of the material strip from being scratched by sliding of the clamping jaws relative to the material strip due to an excessively small clamping force. Besides, by adoption of the structure, the track of the material strip cannot be changed, the material strip is always pulled in the horizontal direction, and therefore, the accuracy is maintained.

Description

technical field [0001] The invention relates to a material belt traction mechanism, in particular to a material sheet loss prevention traction system. Background technique [0002] Most of the existing material belt traction mechanisms rely on static friction to drive the movement of the material belt. For flexible material belts, winding shafts can be used for traction. For some hard material belts, the traction can only be carried out by clamping. Its structure usually includes several sets of clamping jaws. The clamping jaws clamp the material belt to move. When clamping the material belt, the clamping force should not be too large. If it is too large, some fragile material belts will be broken. When the clamping force is small , the tape and the jaws may slide relative to each other, and the jaws may scratch the surface of the tape, affecting the quality of the tape. Contents of the invention [0003] The technical problem to be solved by the present invention is to s...

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Problems solved by technology

[0002] Most of the existing material belt traction mechanisms rely on static friction to drive the movement of the material belt. For flexible material belts, winding shafts can be used for traction. For some hard material belts, the traction can only be carried out by clamping. Its structure usually includes several sets of clamping jaws. The clamping jaws clamp the material belt to move. When clamping the material belt, the clamping force should not be too large. If it is too large, some fragile material belts will be broken. When the clamping force is small , the strip and the jaws may slide relative to each other, and the jaws may scratch the surface of the strip, affecting the quality of the strip

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