CN210733268U - Tensile pincers membrane device of film - Google Patents

Abstract

The utility model relates to a tensile pincers membrane device of film, concretely relates to tensile pincers membrane device of film of variable clamp force. The clamp film device comprises an upper clamp body, a lower clamp body, a compression spring and a clamp head capable of vertically moving up and down, wherein the upper clamp body and the lower clamp body are fixedly connected through a screw, and the clamp head is arranged at the lower end of the upper clamp body; the clamping film device further comprises a piston guide rod arranged in the upper clamping body, the lower end of the compression spring is fixed in the lower clamping body, and the lower end of the piston guide rod and the upper end of the compression spring act on the clamping head downwards and upwards respectively. Compared with the prior art, the device is simple in structure and operation method, and compared with the traditional chain clamp device, the clamping force of the clamp head on the diaphragm can be automatically adjusted without replacing parts, and the adaptability to various soft and hard diaphragms is high.

Description

Tensile pincers membrane device of film

Technical Field

The utility model relates to a tensile pincers membrane device of film, concretely relates to tensile pincers membrane device of film of variable clamp force.

Background

The chain clamp device is a universal device in lithium battery diaphragm industry and other thin film industries, and has the basic function of fixing a thin film in a thin film stretching process. The existing chain clip device usually adopts a compression spring or an extension spring to drive a clip head, the spring elasticity is limited by factors such as the size and the structure of the chain clip, the clip head cannot be manufactured to large elasticity, the clamping force of a clip head for clamping a film is not large, and the film can be easily separated from the chain clip in the film stretching process. Or, in some cases, the diaphragm is damaged by excessive clamping force due to the fact that the diaphragm is soft, and then the diaphragm is separated from the chain clip.

The existing chain clamp device is poor in applicability to the diaphragm, small in clamping force required for a soft diaphragm, incapable of quickly reducing the clamping force, large in clamping force required for a hard diaphragm, incapable of quickly increasing the clamping force, capable of changing the clamping force only by replacing a spring, and complex in operation, and incapable of being adjusted by a user.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tensile pincers membrane device of film, its device structure and operating method are simple, for traditional chain pincers device, do not need the renewal part can adjust the clamp force of pincers head to the diaphragm by oneself, and is strong adaptability to various soft and hard diaphragm.

In order to achieve the above purpose, the utility model provides a following technical scheme: a film stretching clamp film device comprises an upper clamp body, a lower clamp body, a compression spring, a clamp head and the like, wherein the clamp head can vertically move up and down; the clamping film device further comprises a piston guide rod arranged in the upper clamping body, the lower end of the compression spring is fixed in the lower clamping body, and the lower end of the piston guide rod and the upper end of the compression spring act on the clamping heads downwards and upwards respectively.

Preferably, a loosening gasket is arranged between the nut of the screw and the lower clip body.

Further, the lower clip body is also provided with a film supporting pin for supporting the thin film.

Furthermore, the pincers are divided into an inner end and an outer end in the horizontal direction, the lower end of the piston guide rod acts on the upper surface of the outer end of the pincers, and the compression spring acts on the lower surfaces of the inner end and the outer end of the pincers.

Preferably, the piston guide rod is a cylinder piston guide rod, and an air supply system is connected to the upper portion of the cylinder piston guide rod and located on the upper clamp body. In another alternative, a hydraulic system may be used instead of the pneumatic system described above.

Furthermore, the gas supply system comprises a high-pressure gas source, a pressure regulating valve, an electromagnetic valve, a gas pipe connector and the like which are sequentially connected, wherein the gas pipe connector is connected with the upper clamp body and is communicated with the gas path of the cylinder piston guide rod.

Preferably, a sealing ring is arranged between the piston guide rod and the clip body.

Preferably, a thickness measuring device for measuring the thickness of the thin film is arranged in the lower clip at the position where the lower clip is contacted with the thin film, and more preferably, a thickness measuring sensor is arranged in the lower clip.

Further, the clip film device can further comprise a processor, and the processor is respectively connected with the thickness measuring device, the pressure regulating valve and the electromagnetic valve.

A vertical groove is formed in the upper surface of the lower clamp body and is positioned between the thickness measuring device and the compression spring; and a compression screw extending into the groove is arranged on the outer side of the lower clip in the horizontal direction.

According to the clip method based on the film stretching clip device, when a film needs to be compressed, the piston guide rod moves downwards under pressure to drive the clip head, so that the resistance of a compression spring is overcome, and the film is compressed; when the thin film needs to be loosened, the pressure is relieved by the piston guide rod, the clamp head pushes the piston guide rod to move upwards under the action of the compression spring, the piston guide rod returns to the initial position, and the thin film is loosened.

Further, when the film needs to be compressed, the thickness measuring device measures the thickness of the film and transmits the thickness to the processor, and the processor controls the electromagnetic valve, the pressure regulating valve and the thickness measuring device to continuously measure and adjust until the clamping force generated by the clamp head meets the requirements of the hardness of the film through the gas pressure.

Compared with the prior art, the utility model has the advantages of as follows:

(1) the cylinder piston guide rod and the compression spring are matched to clamp the thin film, pressure can be automatically adjusted according to the hardness of the thin film, and then the clamping force of the clamp head is controlled, so that the problems that the thin film is easily separated from the chain clamp in the thin film stretching process of the conventional chain clamp device or the thin film is broken due to overlarge clamping force to fall off and the like are solved.

(2) Through setting up thickness measuring device and treater etc. can further grasp the hardness of film accurately, adjust atmospheric pressure and clamp force more nimble.

(3) Through setting up recess and the housing screw on the pincers body down, can the direct fixation compress tightly the film, no matter how the clamp force of follow-up pincers head, the guarantee film can not drop at tensile in-process accident.

Drawings

Fig. 1 is a schematic cross-sectional view of a clip film device according to embodiment 1 of the present invention;

fig. 2 is a control flow chart of the clip film device according to embodiment 1 of the present invention;

fig. 3 is a schematic cross-sectional view of the clip film device according to embodiment 2 of the present invention.

Description of reference numerals: 1-lower clamp body, 2-upper clamp body, 3-sealing ring, 4-clamp head, 5-piston guide rod, 6-supporting membrane pin, 7-screw, 8-loosening gasket, 9-compression spring, 10-air pipe joint, 11-thickness measuring sensor, 12-groove, 13-compression screw and 14-thin film.

Detailed Description

The technical solutions of the present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which should not be construed as limiting the scope of the present invention.

Example 1

A film stretching clamp film device is shown in figure 1 and comprises an upper clamp body 2, a lower clamp body 1, a compression spring 9, a clamp head 4 capable of vertically moving up and down and the like, wherein the upper clamp body 2 and the lower clamp body 1 are fixedly connected through a screw 7, and the clamp head 4 is arranged at the lower end of the upper clamp body 2. The clamping film device further comprises a piston guide rod 5 arranged in the upper clamping body 2, the lower end of a compression spring 9 is fixed in the lower clamping body 1, and the lower end of the piston guide rod 5 and the upper end of the compression spring 9 act on the clamping head 4 downwards and upwards respectively.

A loosening gasket 8 is arranged between the nut of the screw 7 and the lower clip body 1.

The lower clip body 1 is also provided with a film supporting pin 6 for supporting the film 14.

The tong head 4 is divided into an inner end and an outer end in the horizontal direction, the lower end of the piston guide rod 5 acts on the upper surface of the outer end of the tong head 4, and the compression spring 9 acts on the lower surfaces of the inner end and the outer end of the tong head 4.

The piston guide rod 5 is a cylinder piston guide rod, and an air supply system is connected to the upper portion of the cylinder piston guide rod and is located on the upper tong body 2.

The air supply system comprises a high-pressure air source, a pressure regulating valve, an electromagnetic valve, an air pipe connector 10 and the like which are sequentially connected, wherein the air pipe connector 10 is connected to the upper clamp body 2 and is communicated with an air path of a piston guide rod of the air cylinder. The pressure regulating valve described in this embodiment is an electric pressure regulating valve.

Preferably, in the present embodiment, a sealing ring 3 is further disposed between the piston guide rod 5 and the clip body 2.

And a thickness measuring sensor 11 for measuring the thickness of the thin film is arranged in the lower clip body 1 at the contact part with the thin film 14, and the thickness measuring sensor 11 is positioned between the film supporting pin 6 and the compression spring 9.

Further, the clip film device further comprises a processor, and the processor is electrically connected with the thickness measuring sensor 11, the pressure regulating valve and the electromagnetic valve respectively.

According to the clip film method based on the film stretching clip film device, when the film 14 needs to be compressed, the gas supply system reduces the pressure of a high-pressure gas source and supplies the high-pressure gas source to the clip film device, namely after the electromagnetic valve is electrified and then ventilated, the gas pushes the piston guide rod 5 to move downwards under the pressure to drive the clip head 4, the resistance of the compression spring 9 is overcome, and the film 14 is compressed; when the thin film 14 needs to be loosened, the electromagnetic valve is powered off, air is decompressed, the piston guide rod 5 is driven to relieve pressure, the clamp head 4 pushes the piston guide rod 5 to move upwards under the action of the compression spring 9, the piston guide rod returns to the initial position, and the thin film 14 is loosened.

Further, as shown in fig. 1 and 2, the thickness measuring sensor 11 measures the thickness of the film 14, the processor calculates the film compression percentage according to the initial thickness, the processor sends a signal to control the electric pressure regulating valve to regulate the gas pressure in comparison with the input optimal compression percentage, then the thickness measuring sensor 11 continues to measure the thickness and feeds the thickness back to the processor, and the processor continues to control the electromagnetic valve and the electric pressure regulating valve to regulate the gas pressure until the gas pressure enables the clamping force generated by the clamp head 4 to meet the requirement of the membrane hardness.

Example 2

On the basis of the clip film device in the embodiment 1, as shown in fig. 3, a vertical groove 12 is formed on the upper surface of the lower clip body 1 and positioned between the thickness measuring sensor 11 and the compression spring 9; and a compression screw 13 extending into the groove 12 is arranged on the outer side of the lower clip body 1 in the horizontal direction.

The clip film method comprises the following steps: the head of the thin film 14 is thrown into the groove 12, the compression screw 13 penetrates into the groove 12 to compress the thin film 14, the compression thin film 14 can be directly fixed, and the thin film 14 cannot accidentally fall off in the stretching process at the expense of sacrificing a small section of thin film no matter the clamping force of the subsequent clamp head 4.

While particular embodiments of the present invention have been illustrated and described, it would be obvious that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims (8)

1. A film stretching clamp film device comprises an upper clamp body, a lower clamp body, a compression spring and a clamp head capable of vertically moving up and down, wherein the upper clamp body and the lower clamp body are fixedly connected through a screw, and the clamp head is arranged at the lower end of the upper clamp body; the piston type tong is characterized by further comprising a piston guide rod arranged in the upper tong body, the lower end of the compression spring is fixed in the lower tong body, and the lower end of the piston guide rod and the upper end of the compression spring act on the tong heads downwards and upwards respectively.

2. The film stretching clip device according to claim 1, wherein the clip head is divided into an inner end and an outer end in the horizontal direction, the lower end of the piston guide rod acts on the upper surface of the outer end of the clip head, and the compression spring acts on the lower surfaces of the inner end and the outer end of the clip head.

3. The film stretching clip device according to claim 1 or 2, wherein the piston guide rod is a cylinder piston guide rod, and an air supply system is connected to the upper clip body at the upper part of the cylinder piston guide rod.

4. The film stretching clamp device according to claim 3, wherein the gas supply system comprises a high-pressure gas source, a pressure regulating valve, a solenoid valve and a gas pipe connector which are connected in sequence, and the gas pipe connector is connected to the clamp body and communicated with a gas path of the cylinder piston guide rod.

5. The film stretching clip device of claim 1, wherein a sealing ring is disposed between the piston guide rod and the clip body.

6. The film stretching clip device according to claim 1, wherein a thickness measuring device for measuring the thickness of the film is provided in the clip at a position where the clip contacts the film.

7. The film stretching clamp device according to claim 6, further comprising a processor, wherein the processor is respectively connected with the thickness measuring device, the pressure regulating valve and the electromagnetic valve.

8. The film stretching clamp device according to claim 7, wherein a vertical groove is formed in the upper surface of the lower clamp body and is positioned between the thickness measuring device and the compression spring; and a compression screw extending into the groove is arranged on the outer side of the lower clip in the horizontal direction.

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