Clamping device and winding and unwinding device

Abstract

The invention provides a clamping device and a winding and unwinding device. The clamping device comprises a first clamping head, a second clamping head, a plurality of friction plates, a friction ring, a slip ring, and an end cover, wherein the second clamping head comprises a first shaft core; the first shaft core comprises a first end part and a first shaft part; a plurality of grooves are formed in the first shaft part; each friction plate partially protrudes from a corresponding groove; the friction ring sleeves the first shaft part; the slip ring sleeves the first shaft part; the friction plates are positioned between the slip ring and the first shaft part, and in contact with the slip ring; the friction ring is positioned between the first end part and the slip ring; a plurality of raised keys are formed on the outer ring surface of the slip ring; under stress, the raised keys protrude from the outer ring surface of the slip ring to be tightly propped against a coil core; the end cover is fixed with the end, far away from the first end part, of the first shaft part in a combined manner; the friction ring and the slip ring are clamped between the first end part and the end cover. Through the adoption of the clamping device, the problem that in the prior art, the clamping tension of a clamping head is non-adjustable or is inconvenient to adjust, can be solved.

Description

technical field [0001] The present invention relates to a clamping device and a winding and unwinding device, in particular to a clamping device and a winding and unwinding device capable of adjusting winding tension. Background technique [0002] In the prior art, in roll-to-roll rewinding of film materials, if the tension range of machine rewinding needs to be extended in a large range, it is mainly done by using a slip shaft and a magnetic powder clutch. See figure 1 , figure 1 Shown is a schematic diagram of a coil clamping device in the prior art. The coil clamping device 1 includes two oppositely arranged chucks 2, and the two oppositely arranged chucks 2 are respectively fixed on two oppositely arranged brackets 3, The collet 2 includes an end portion 4 and a shaft portion 5 connected to the end portion 4. A slip shaft is sleeved on the two shaft portions 5, and the roll core of the coil is sleeved on the slip shaft, thereby realizing rolling Material winding work....

AI Technical Summary

Problems solved by technology

[0004] Therefore, one of the objectives of the present invention is to provide a clamping device and a winding device to solve the problem in the prior art that the clamping tension of the chuck cannot be adjusted or is inconvenient to adjust.

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