Thinning device for PVC (polyvinyl chloride) film production

Through the combined design of components such as support rollers, electric telescopic rods and heating roller shafts, the problems of film detachment and damage in PVC film stretching devices are solved, and a more uniform and stable stretching effect is achieved.

CN223252330UActive Publication Date: 2025-08-22SUZHOU BO MINGSHENG NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202422590525.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-08-22
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

The existing PVC film stretching device is prone to disengagement during clamping, has poor stability, and is prone to damage the film during film drawing.

Method used

The combination design of supporting rollers, electric telescopic rods, heating roller shafts and limit grooves is adopted to achieve stable clamping and uniform stretching of the film through motor drive and screw adjustment.

Benefits of technology

It improves the uniformity and stability of PVC film stretching, reduces film damage, and enhances the stability of clamping.

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    Figure CN223252330U_ABST
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Abstract

The utility model discloses a PVC (polyvinyl chloride) film production thinning device, which particularly relates to the technical field of film production and comprises a thinning device support, a film drawing support rod is arranged on one side of the upper end of the thinning device support, an adjusting support plate is arranged on one side of the upper end of the film drawing support rod, and a support roller is arranged on the inner side end face of the thinning device support. A first electric telescopic rod is arranged on one side of the outer end of the thinning device support, and a driving motor is arranged on the end face of the outer side of the adjusting supporting plate. When the PVC film drawing device is actually used, the pressing block can be conveniently driven to ascend and descend under the corresponding arrangement state of the pressing block, the heating roller shaft, the second electric telescopic rod and the vertical sliding rod, so that a PVC film is pressed downwards, the film drawing work is conducted on the film, meanwhile, the heating roller shaft can increase the film drawing uniformity of the PVC film, and the PVC film drawing efficiency is improved. And meanwhile, under the corresponding arrangement state of a supporting pressing block, a first electric telescopic rod, a concave limiting groove and an adaptive connecting block, the PVC thin film can be conveniently pressed.
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Description

Technical Field

[0001] The utility model relates to the technical field of film production, and more specifically, to a PVC film production thinning device. Background Art

[0002] PVC film is a polymer plastic film, which is currently mainly used in the fields of covering cloth, home decoration film, laminating advertising cloth, car body color change and advertising, and plays the effect of covering, decoration and advertising. In order to ensure the light transmittance and aesthetics of PVC film, PVC film is usually subjected to film stretching treatment. For example, the prior art announcement number (CN104999655B) discloses a film stretching machine for ultra-thin PVC film, which includes a frame, and a film clamping mechanism and a left-right moving mechanism are provided above the frame. The film clamping mechanism clamps and fixes the two sides of the newly produced PVC film, and the left-right moving mechanism drives the film clamping mechanism to move to both sides to stretch the PVC film, thereby achieving ultra-thin PVC film. The film clamping mechanism includes clamping ends for installing on both sides of the PVC film, and the clamping ends include an upper clamping part and a lower clamping part. Both ends of the upper clamping part and the lower clamping part are provided with belt conveyor wheels, and a belt is wound around the belt conveyor wheel. The lower end of the upper clamping part and the upper end of the lower clamping part are provided with several pressure wheels corresponding to the belt. The film clamping mechanism also includes an upper and lower moving device for the upper clamping part, a guide rod is provided between the upper clamping part and the lower clamping part, and the upper clamping part and the lower clamping part are provided with a kit corresponding to the guide rod.

[0003] When the above device is in use, the film clamping mechanism clamps the PVC film, and then the left and right moving mechanism drives the film clamping mechanism to move to both sides to stretch the PVC film and achieve ultra-thin PVC film. However, when the film is pressed tightly, the film is easy to detach from between the belts and has poor stability. At the same time, the film is easy to be damaged when it is pulled. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a PVC film production thinning device. The technical problem to be solved by the present invention is: how to increase the uniformity and stability of PVC film thinning.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a PVC film production thinning device, comprising a thinning device bracket, a film-stretching support rod is provided on one side of the upper end of the thinning device bracket, an adjustment support plate is provided on one side of the upper end of the film-stretching support rod, a support roller is provided on the inner end surface of the thinning device bracket, a first electric telescopic rod is provided on one side of the outer end of the thinning device bracket, a drive motor is provided on the outer end surface of the adjustment support plate, and the output shaft of the drive motor passes through the end surface of the adjustment support plate and extends to the inner side thereof;

[0006] The output shaft of the driving motor is provided with an adjusting screw on the inner side of the adjusting support plate, the inner end surface of the adjusting support plate is provided with a supporting slide rod on the outer side of the adjusting screw, the outer end surface of the adjusting screw is provided with a supporting adjustment block, the inner end of the thinning device bracket is provided with a supporting pressure block on the upper side of the supporting roller, and the outer side of the upper end of the supporting pressure block is provided with an adaptor connecting block;

[0007] The output shaft at the upper end of the first electric telescopic rod is connected to the adapter connecting block, and a second electric telescopic rod is provided on one side of the upper end of the support and adjustment block. The output shaft of the second electric telescopic rod passes through the end face of the support and adjustment block and extends to its lower end. The output shaft of the second electric telescopic rod is provided with a clamping block on the lower side of the support and adjustment block, and a heating roller shaft is provided on the lower end face of the clamping block.

[0008] In a preferred embodiment, the rotating shaft in the middle of the support roller passes through the end face of the thinning device bracket, and the upper end of the thinning device bracket is provided with a concave limiting groove on the end face close to the film stretching support rod;

[0009] The support slide rod is set to pass through the end surface of the support adjustment block, and a vertical slide rod is provided in the middle of the upper end of the clamping block. The vertical slide rod passes through the end surface of the support adjustment block and extends to its upper end.

[0010] In a preferred embodiment, the number of the concave limiting grooves is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the thinning device bracket in the main viewing direction;

[0011] The inner end surface of the concave limiting groove is adapted to the outer end surface of the adapter connecting block. There are multiple vertical sliding rods, which are arranged in an array on both sides of the transverse central axis of the pressing block in the top view direction.

[0012] In a preferred embodiment, the first electric telescopic rod, the second electric telescopic rod and the drive motor are all electrically connected to the external control device. There are two first electric telescopic rods, which are arranged in a mirrored state on both sides of the vertical center axis in the main viewing direction of the thinning device bracket.

[0013] In a preferred embodiment, there are two supporting slide bars, which are arranged in a mirror image on both sides of the vertical central axis of the adjustment support plate in the right viewing direction, and the outer end surface of the supporting roller is a rubber component.

[0014] In a preferred embodiment, the lower end of the supporting pressure block is a rubber material component, the number of the adapting connecting blocks is two, and they are arranged in a mirror state on both sides of the vertical center axis of the supporting pressure block in the right viewing direction, and the outer end surface of the heating roller shaft is a rubber material component.

[0015] Technical effects and advantages of this utility model:

[0016] When the utility model is actually used, the pressing block can be easily driven to rise and fall under the corresponding setting state of the pressing block, the heating roller, the second electric telescopic rod and the vertical sliding rod, thereby pressing the PVC film downward to pull the film. At the same time, the heated roller will increase the uniformity of pulling the PVC film. At the same time, under the corresponding setting state of the supporting pressing block, the first electric telescopic rod, the concave limiting groove and the adapter connecting block, the PVC film can be easily pressed, thereby increasing the stability of pulling the PVC film. At the same time, under the corresponding setting state of the driving motor, the adjusting screw rod, the supporting sliding rod and the supporting adjusting block, the supporting adjusting block can be easily driven to adjust its position, so that under the cooperative work of the driving motor and the second electric telescopic rod, the heating roller presses down and rolls the upper end of the PVC film, thereby increasing the uniformity of pulling the PVC film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall right side structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure of the support and adjustment block of the utility model.

[0020] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0021] The figures are marked as follows: 1 thinning device bracket, 2 film stretching support rod, 3 adjustment support plate, 4 drive motor, 5 adjustment screw rod, 6 support slide rod, 7 support adjustment block, 8 clamping block, 9 support roller, 10 first electric telescopic rod, 11 support pressure block, 12 heating roller shaft, 13 concave limit groove, 14 adapter connection block, 15 second electric telescopic rod, 16 vertical slide rod. DETAILED DESCRIPTION

[0022] The utility model provides a PVC film production thinning device, such as Figure 1 and 2 As shown, it includes a thinning device bracket 1, a film-stretching support rod 2 is provided on one side of its upper end, an adjustment support plate 3 is provided on one side of the upper end of the film-stretching support rod 2, a support roller 9 is provided on the inner end surface of the thinning device bracket 1, a first electric telescopic rod 10 is provided on one side of the outer end of the thinning device bracket 1, and a drive motor 4 is provided on the outer end surface of the adjustment support plate 3;

[0023] The output shaft of the driving motor 4 passes through the end surface of the adjusting support plate 3 and extends to the inner side thereof. The output shaft of the driving motor 4 is provided with an adjusting screw rod 5 on the inner side of the adjusting support plate 3. The inner end surface of the adjusting support plate 3 is provided with a supporting slide rod 6 on the outer side of the adjusting screw rod 5. The outer end surface of the adjusting screw rod 5 is provided with a supporting adjustment block 7, which can be driven by the driving motor 4 to drive the adjusting screw rod 5 to rotate, thereby driving the supporting adjustment block 7 to adjust the position. The inner end of the thinning device bracket 1 is provided with a supporting pressure block 11 on the upper side of the supporting roller 9;

[0024] The rotating shaft in the middle of the support roller 9 passes through the end face of the thinning device bracket 1, and the support slide bar 6 is set to pass through the end face of the support adjustment block 7. The first electric telescopic rod 10, the second electric telescopic rod 15 and the drive motor 4 are all electrically connected to the external control device. There are two first electric telescopic rods 10, and they are set in a mirror state on both sides of the vertical central axis of the main viewing direction of the thinning device bracket 1. The first electric telescopic rod 10 can drive the support pressing block 11 to move up and down in height, so that the support pressing block 11 presses the upper end of the PVC film, so that the PVC film is tightly attached to the upper end of the support roller 9;

[0025] There are two supporting slide bars 6, which are arranged in a mirrored state on both sides of the vertical center axis of the adjustment support plate 3 in the right viewing direction. The outer end surface of the supporting roller 9 is a rubber component, and the lower end of the supporting pressure block 11 is a rubber component.

[0026] like Figure 3 and 4 As shown, an adapter connecting block 14 is provided on the outer side of the upper end of the support pressing block 11, and the output shaft of the upper end of the first electric telescopic rod 10 is connected to the adapter connecting block 14. A second electric telescopic rod 15 is provided on one side of the upper end of the support adjustment block 7, and the output shaft of the second electric telescopic rod 15 passes through the end surface of the support adjustment block 7 and extends to its lower end;

[0027] The output shaft of the second electric telescopic rod 15 is provided with a clamping block 8 on the lower side of the support and adjustment block 7. The lower end face of the clamping block 8 is provided with a heating roller 12, which can increase the uniformity of film stretching. The upper end of the thinning device bracket 1 is provided with a concave limiting groove 13 on the end face close to the film stretching support rod 2. A vertical sliding rod 16 is provided in the middle of the upper end of the clamping block 8. The vertical sliding rod 16 passes through the end face of the support and adjustment block 7 and extends to its upper end, which can effectively increase the stability of the clamping block 8 in height lifting and lowering.

[0028] There are two concave limiting grooves 13, which are arranged in a mirror-image state on both sides of the vertical center axis in the main viewing direction of the thinning device bracket 1. The inner end face of the concave limiting groove 13 is adapted to the outer end face of the adapter connecting block 14. There are multiple vertical sliding rods 16, which are arranged in an array state on both sides of the horizontal center axis in the top viewing direction of the clamping block 8. The outer end face of the heating roller 12 is a rubber component.

[0029] Working principle of this utility model:

[0030] When the present invention is in use, the staff will stick the PVC film to the upper end of the support roller 9, and then drive the first electric telescopic rod 10, the second electric telescopic rod 15 and the drive motor 4 to work through the external control device. The first electric telescopic rod 10 will drive the adapter connection block 14 and the support pressure block 11 to move downward, so that the adapter connection block 14 is clamped in the outer end of the concave limit groove 13, and then the PVC film can be pressed. Then the second electric telescopic rod 15 will drive the pressing block 8 to rise and fall, so that the heating roller 12 is stuck to the upper end of the PVC film, and then the drive motor 4 will drive the adjusting screw 5 to rotate, thereby driving the support adjustment block 7 to move, and then when the second electric telescopic rod 15 continues to descend, it will press the film to perform film pulling.

[0031] Finally, a few points should be explained: the drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PVC film production thinning device, characterized in that: include: A thinning device bracket (1) is provided with a film-stretching support rod (2) on one side of its upper end, an adjustment support plate (3) is provided on one side of the upper end of the film-stretching support rod (2), a support roller (9) is provided on the inner end face of the thinning device bracket (1), a first electric telescopic rod (10) is provided on one side of the outer end of the thinning device bracket (1), a driving motor (4) is provided on the outer end face of the adjusting support plate (3), and an output shaft of the driving motor (4) passes through the end face of the adjusting support plate (3) and extends to the inner side thereof; The output shaft of the driving motor (4) is provided with an adjusting screw (5) on the inner side of the adjusting support plate (3); the inner end surface of the adjusting support plate (3) is provided with a supporting slide bar (6) on the outer side of the adjusting screw (5); the outer end surface of the adjusting screw (5) is provided with a supporting adjustment block (7); the inner end of the thinning device bracket (1) is provided with a supporting pressure block (11) on the upper side of the supporting roller (9); and the outer side of the upper end of the supporting pressure block (11) is provided with an adapting connection block (14); The output shaft at the upper end of the first electric telescopic rod (10) is connected to the adapter connecting block (14); a second electric telescopic rod (15) is provided on one side of the upper end of the support and adjustment block (7); the output shaft of the second electric telescopic rod (15) passes through the end face of the support and adjustment block (7) and extends to the lower end thereof; the output shaft of the second electric telescopic rod (15) is provided with a pressing block (8) on the lower side of the support and adjustment block (7); and a heating roller shaft (12) is provided on the lower end face of the pressing block (8).

2. A PVC film production thinning device according to claim 1, characterized in that: The rotating shaft in the middle of the supporting roller (9) passes through the end face of the thinning device bracket (1), and the upper end of the thinning device bracket (1) is provided with a concave limiting groove (13) on the end face of one side close to the film-stretching support rod (2); The support slide bar (6) is provided through the end face of the support adjustment block (7), and a vertical slide bar (16) is provided in the middle of the upper end of the pressing block (8). The vertical slide bar (16) passes through the end face of the support adjustment block (7) and extends to its upper end.

3. A PVC film production thinning device according to claim 2, characterized in that: The number of the concave limiting grooves (13) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the thinning device bracket (1) in the main viewing direction; The inner end surface of the concave limiting groove (13) is adapted to the outer end surface of the adapting connecting block (14), and the number of the vertical sliding rods (16) is provided in plurality and is arranged in an array state on both sides of the transverse central axis in the top view direction of the pressing block (8).

4. The PVC film production thinning device according to claim 1, characterized in that: The first electric telescopic rod (10), the second electric telescopic rod (15) and the drive motor (4) are all electrically connected to an external control device. There are two first electric telescopic rods (10), which are arranged in a mirror image on both sides of the vertical central axis of the thinning device bracket (1) in the main viewing direction.

5. The PVC film production thinning device according to claim 1, characterized in that: The number of the supporting slide bars (6) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the adjustment support plate (3) in the right viewing direction. The outer end surface of the supporting roller (9) is a rubber material component.

6. The PVC film production thinning device according to claim 1, characterized in that: The lower end of the supporting pressing block (11) is a rubber component. The number of the adapting connecting blocks (14) is two and they are arranged in a mirror image state on both sides of the vertical central axis of the supporting pressing block (11) in the right viewing direction. The outer end surface of the heating roller shaft (12) is a rubber component.

Citation Information

Patent Citations

  • A film stretching machine for ultra-thin PVC film

    CN104999655B