Tension adjusting bracket for PVC (polyvinyl chloride) heat shrinkage film production

Abstract

The invention relates to the technical field of film production, in particular to a PVC (polyvinyl chloride) thermal shrinkage film production tension adjusting frame which comprises a placing plate, a clamping piece, a tensioning piece and a cleaning piece, the clamping piece is mounted at the upper end of the placing plate, the tensioning piece is connected to the clamping piece, and the cleaning piece is mounted at the rear end of the clamping piece. The problems that in the prior art, tension borne by a thermal shrinkage film needs to be adjusted in the winding process, an existing adjusting frame has the function of achieving self-adaptive adjustment of the tension borne by the thermal shrinkage film, but adjustment is generally conducted through a plurality of rotating rollers, and therefore a large number of space resources are occupied, and the utilization rate of the space around the thermal shrinkage film is reduced are solved. According to the tension adjusting frame for production of the PVC heat shrinkage film, the tension pipe on the tension piece is used for pulling and pulling the heat shrinkage film through self-rotation, so that the tension borne by the heat shrinkage film is changed, the space needed for changing the tension of the heat shrinkage film is reduced, and the influence on the surrounding environment is reduced.

Description

technical field [0001] The invention relates to the technical field of film production, in particular to a tension adjusting frame for producing PVC heat-shrinkable films. Background technique [0002] Heat shrinkable film is used for the packaging and transportation of various products, and its main function is to stabilize, cover and protect products; PVC heat shrinkable film is added with components to enhance its heat resistance, toughness, ductility, etc., and has high puncture resistance. , good shrinkage and certain shrinkage stress. [0003] The heat-shrinkable film needs to be rolled and put into storage after being produced and formed, which is convenient for subsequent use. The tension of the heat-shrinkable film needs to be adjusted during the winding process to ensure that the heat-shrinkable film is in a straightened state during winding. state, Chinese utility model patent (publication number CN214527181U) discloses a packaging film tensioning mechanism, the ...

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Problems solved by technology

[0003] After the heat shrinkable film is produced and formed, it needs to be rolled up and stored in the warehouse, which is convenient for later use. The tension of the heat shrinkable film needs to be adjusted during the winding process to ensure that the heat shrinkable film is stretched when it is rolled. State, the Chinese utility model patent (publication number is CN214527181U) discloses a packaging film tensioning mechanism, the packaging film is in conflict with the first tension roller and the second tension roller, when the packaging film is slightly loose on the frame, The first tensioning frame and the second tensioning frame rotate relatively far away, so that the first tensioning roller and the second tensioning roller are relatively far away, thereby tensioning the packaging film; wherein the first tensioning frame and the second tensioning frame Relatively far away from the need for manual adjustment, the self-adaptive adjustment of the packaging film cannot be realized, thus increasing the operating steps of the operator and reducing the effect of heat shrinkable film winding

[0004] The existing adjustment frame has the function of self-adaptively adjusting the tension on the heat-shrinkable film, but it is usually adjusted by multiple rotating rollers, which takes up a lot of space resources and reduces the utilization rate of the space around the heat-shrinkable film. The existing adjustment frame generally can only adjust the tension in one direction of the heat shrinkable film

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