CN-112026158-B - Magnetic control closing clamp device for thin film transverse pulling

CN112026158BCN 112026158 BCN112026158 BCN 112026158BCN-112026158-B

Abstract

The invention discloses a magnetic control closing clamp device for thin film transverse pulling, which comprises a mounting plate, a magnetic control assembly arranged on the mounting plate, a bracket arranged at the bottom of the mounting plate and a push plate arranged on the bracket, wherein the magnetic control assembly is used for driving a clamp handle of a chain clamp to rotate under the action of magnetic force to realize closing clamp. According to the magnetic control clamping device provided by the invention, the push plate is arranged beside the magnetic control assembly, so that when a plurality of chain clamps cannot be clamped due to insufficient magnetic attraction force or insufficient rotation resistance and the like, the chain handles are in rigid contact with the push plate, and then the clamp handles are pushed by the push plate to rotate gradually towards the clamping direction, so that the film clamping surface of the clamp handles and the film clamping opening of the clamp body clamp the film, each chain clamp is ensured to be successfully clamped, and the film can be stretched smoothly.

Inventors

ZHANG HANMEI
ZHANG CHUNHUA
BAI RUJIA
Yang Dingmao
CHEN CHENGFA

Assignees

广东仕诚塑料机械有限公司

Dates

Publication Date: 20260505
Application Date: 20200821

Claims (2)

1. The magnetic control closing clamp device for the thin film transverse pulling is characterized by comprising a mounting plate, a magnetic control assembly arranged on the mounting plate, a bracket arranged at the bottom of the mounting plate and a push plate arranged on the bracket; the magnetic control assembly is used for driving a clip handle of a chain clip to rotate to realize closing by magnetic force, the push plate is positioned beside the magnetic control assembly and used for pushing the chain handle which fails to rotate in place under the action of the magnetic control assembly to rotate in place, the push plate is horizontally arranged and is in a right trapezoid shape under horizontal projection, the end face of an inclined waist of the right trapezoid faces the clip handle, one end of the inclined waist, which is close to an input port of the chain clip, is lower than one end of the inclined waist, which is close to an output port of the chain clip, the mounting plate is arranged on a fixing plate through a rotating shaft and can swing relative to the fixing plate, a linear driving mechanism is arranged on the fixing plate, the output end of the linear driving mechanism is in transmission connection with the mounting plate through a connecting seat, a hinging seat is arranged on the fixing plate, the tail of the linear driving mechanism is hinged with the hinging seat, the linear driving mechanism is used for driving the mounting plate to swing around the rotating shaft, the magnetic control assembly comprises a plurality of magnetic boxes which are arranged at the bottom of the mounting plate and are arranged along the length direction of the mounting plate, waist-shaped holes which are equal to the number of the magnetic boxes and correspond to one another, each magnetic box is arranged in the direction along the width direction of the mounting plate, each magnetic box is provided with a plurality of waist-shaped holes which are arranged in the direction, each magnetic box is provided with a strong screw box, and each magnetic box is provided with a strong screw penetrating hole, and a plurality of holes which penetrates through the two inner boxes, the bottom end of each screw is screwed into a corresponding threaded hole, a row of magnetic boxes on the mounting plate magnetically attracts clip handles one by one along the advancing direction of the chain clip on the guide rail, the clip handles rotate by the same angle towards the closing direction each time, the connecting seat comprises a connector and a U-shaped plate which are connected with each other, the mounting plate is arranged on the inner side of the U-shaped plate, a bearing is arranged on the mounting plate, a first pin shaft connected with an inner ring of the bearing is fixedly arranged on the U-shaped plate, an outer ring of the bearing is fixedly connected with the mounting plate, the rotating shaft comprises a second pin shaft vertically arranged on the fixing plate, a locating sleeve sleeved on the periphery of the second pin shaft and a connecting sleeve sleeved on the periphery of the locating sleeve, a self-lubricating bearing is arranged between the locating sleeve and the connecting sleeve, and the mounting plate is fixedly connected with the connecting sleeve.
2. The magnetically controlled pinch-off device of claim 1, wherein the linear drive mechanism is a cylinder.

Description

Magnetic control closing clamp device for thin film transverse pulling Technical Field The invention relates to the technical field of film stretching production lines, in particular to a magnetic control closing clamp device for film transverse stretching. Background The chain clips and the chain clips are widely used in the film stretching production line and are installed on the annular guide rail, the guide rail is used for guiding during movement, a set of bilateral symmetrical annular guide rails are respectively arranged on two sides of the film, and the chain clips on the guide rails on the two sides synchronously run. And the two sides of the film thick sheet to be stretched are fed into the chain clips, the chain clips are closed, and the width change between the guide rails at the two sides enables the chain clips at the two sides of the film to pull the film to move to the two outer sides, so that the purpose of transverse stretching is achieved. The mechanical clamp closing device is used for completing the clamp closing through lifting and pressing the clamp handle, so that the clamp handle is high in impact force, and when the clamp handle clamps a wider and thinner film or clamps a film with low mechanical strength in a hot state, the film at the clamp opening is subjected to a larger shearing force at the moment of clamping the clamp handle, and is easy to be clamped off or torn, so that the conventional magnetic control clamp closing device controls the chain handle to complete the clamp closing through magnetic force action, thereby reducing abrasion of the chain clamp and prolonging the service life. However, after the clamping handles of some chain clamps are acted by the magnetic control clamping device, the clamping handles cannot be rotated in place to finish clamping, and the film cannot be effectively clamped, so that the stretching of the film is affected. It can be seen that there is a need for improvements and improvements in the art. Disclosure of Invention In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a magnetically controlled clamping device for transverse pulling of a film, which aims to ensure that each chain gripper can complete a clamping action and effectively clamp the film. In order to achieve the above purpose, the invention adopts the following technical scheme: The magnetic control closing clamp device comprises a mounting plate, a magnetic control assembly arranged on the mounting plate, a support arranged at the bottom of the mounting plate and a pushing plate arranged on the support, wherein the magnetic control assembly is used for driving a clamp handle of a chain clamp to rotate through magnetic force to realize closing, the pushing plate is located beside the magnetic control assembly, and the pushing plate is used for pushing the chain handle which cannot rotate in place under the action of the magnetic control assembly to rotate in place. The push plate level sets up and is right trapezoid under horizontal projection, and the terminal surface at its right trapezoid's oblique waist place is towards the pincers handle, and the one end that the oblique waist is close to chain pincers input port is less than the one end that the oblique waist is close to chain pincers output port. The mounting plate is arranged on a fixed plate through a rotating shaft, and can swing relative to the fixed plate. The fixing plate is provided with a linear driving mechanism, the output end of the linear driving mechanism is in transmission connection with the mounting plate through a connecting seat, the fixing plate is provided with a hinging seat, the tail of the linear driving mechanism is hinged with the hinging seat, and the linear driving mechanism is used for driving the mounting plate to swing around a rotating shaft. The connecting seat comprises a connector and a U-shaped plate which are connected with each other, the mounting plate is arranged on the inner side of the U-shaped plate, a bearing is arranged on the mounting plate, a first pin shaft connected with an inner ring of the bearing is fixedly arranged on the U-shaped plate, and an outer ring of the bearing is fixedly connected with the mounting plate. The rotating shaft comprises a second pin shaft vertically arranged on the fixed plate, a positioning sleeve sleeved on the periphery of the second pin shaft, and a connecting sleeve sleeved on the periphery of the positioning sleeve, a self-lubricating bearing is arranged between the positioning sleeve and the connecting sleeve, and the mounting plate is fixedly connected with the connecting sleeve. The magnetic control assembly comprises a plurality of magnetic boxes which are arranged at the bottom of the mounting plate and are arranged along the length direction of the mounting plate, waist-shaped holes which are equal to the magnetic boxes in number and correspond to each other one by one are formed in the