CN112027765A

CN112027765A - Film presss from both sides limit device

Info

Publication number: CN112027765A
Application number: CN202010850181.2A
Authority: CN
Inventors: 张春华; 秦志红; 白汝佳; 杨丁卯; 陈诚发
Original assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Current assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-12-04

Abstract

The invention discloses a film edge clamping device which comprises an upper pressing wheel, a lower pressing wheel, a swing arm, a support, a turnover driving mechanism fixedly arranged on the support and a position adjusting mechanism for driving the support to move along the width direction of a film, wherein the upper pressing wheel is arranged on the upper pressing wheel; the lower pressing wheel is rotatably arranged on the support, the upper pressing wheel is rotatably arranged at one end of the swing arm, and the other end of the swing arm is connected with the output end of the turnover driving mechanism; the overturning driving mechanism is used for driving the swinging arm to swing and driving the upper pressing wheel to overturn, so that the upper pressing wheel and the lower pressing wheel clamp the film. The film edge clamping device provided by the invention has the advantages of compact structure, few components and low manufacturing cost, and the moving driving mechanism drives the moving seat to transversely move to a proper position, so that the film edge clamping device is suitable for films with different widths.

Description

Film presss from both sides limit device

Technical Field

The invention relates to the field of film production equipment, in particular to a film edge clamping device.

Background

The two side edges of the film need to be clamped in the film winding process, so that the film is kept flat and does not wrinkle in the whole traction process. The existing film edge clamping device has the following defects: 1. the structure is complex, and the manufacturing cost is high; 2. the film edge clamping device is generally fixedly arranged on a rack of a film production line, so that the edge clamping device can only clamp films with specific width, cannot adapt to the films with different widths, and has poor applicability.

It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a film edge clamping device with a simple structure, which is suitable for films with different widths.

In order to achieve the purpose, the invention adopts the following technical scheme:

a film edge clamping device comprises an upper pinch roller, a lower pinch roller, a swing arm, a support, a turnover driving mechanism fixedly arranged on the support and a position adjusting mechanism used for driving the support to move along the width direction of a film; the lower pressing wheel is rotatably arranged on the support, the upper pressing wheel is rotatably arranged at one end of the swing arm, and the other end of the swing arm is connected with the output end of the turnover driving mechanism; the overturning driving mechanism is used for driving the swinging arm to swing and driving the upper pressing wheel to overturn, so that the upper pressing wheel and the lower pressing wheel clamp the film.

The support comprises a bottom plate, two supporting arms symmetrically arranged on the upper surface of the bottom plate and a C-shaped plate arranged between the two supporting arms, and the lower pressing wheel is arranged on the inner side of the C-shaped plate.

And the inner sides of the bearing support arms are provided with support plates, the support plates support C-shaped plates, and the C-shaped plates are connected with the bearing support arms through screws.

The support also comprises a side plate arranged at the rear side of the bottom plate and an installation part obliquely arranged on the side plate; the overturning driving mechanism is fixed on the mounting part.

The swing arm comprises a sleeve, a crank arm and a steering plate which are connected in sequence; the sleeve and the steering plate are perpendicular to the crank arm, the sleeve is fixedly sleeved on an output shaft of the turnover driving mechanism, and the upper pressing wheel is rotatably arranged on the steering plate.

The overturning driving mechanism is a swinging cylinder.

The position adjusting mechanism comprises a moving seat and a cross beam, the support is detachably arranged at the top of the moving seat, the moving seat is slidably arranged on the cross beam, and a moving driving mechanism for driving the moving seat to transversely move is arranged on the cross beam.

The movable driving mechanism comprises a lead screw extending along the length direction of the cross beam and a lead screw nut arranged on the lead screw, the lead screw nut is fixedly connected with the movable base, the lead screw is rotatably arranged on the cross beam, and one end of the lead screw is provided with a lead screw driving mechanism used for driving the lead screw to rotate.

The screw rod driving mechanism is a hand wheel.

The screw rod driving mechanism is a stepping motor.

Has the advantages that:

compared with the prior art, the film edge clamping device provided by the invention drives the movable seat to transversely move to a proper position through the movable driving mechanism, so that the film edge clamping device is suitable for films with different widths. In addition, the film edge clamping device has compact structure, few components and low manufacturing cost; the turnover driving mechanism drives the swing arm to drive the upper pinch roller to turn over right above the lower pinch roller, and then the upper pinch roller and the wheel surface of the lower pinch roller clamp the film together, so that the side edge of the film keeps flat and smooth in the whole traction process and is not wrinkled.

Drawings

Fig. 1 is a schematic structural diagram of a film edge clamping device provided by the present invention.

Fig. 2 is a first perspective view of a central subassembly of the film edge-clipping device provided by the present invention.

FIG. 3 is a second perspective view of the middle subassembly of the film edge-clipping device provided by the present invention.

FIG. 4 is a schematic diagram of the motion trajectory of the upper pressure roller in the film edge clamping device provided by the present invention.

Description of the main element symbols: 1-upper pinch roller, 2-lower pinch roller, 3-swing arm, 4-support, 5-turnover driving mechanism, 6-position adjusting mechanism, 41-bottom plate, 46-bearing support arm, 42-C type plate, 421-connecting plate, 422-connecting arm, 43-supporting plate, 44-side plate, 45-mounting portion, 31-sleeve, 32-crank arm, 33-steering plate, 61-moving seat and 62-beam.

Detailed Description

The present invention provides a film edge clamping device, which will be described in further detail below with reference to the accompanying drawings and examples in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

Referring to fig. 1-4, the present invention provides a film edge clamping device, which includes an upper pressing wheel 1, a lower pressing wheel 2, a swing arm 3, a support 4, a turning driving mechanism 5 fixedly disposed on the support 4, and a position adjusting mechanism 6 for driving the support 4 to move along the width direction of the film; the lower pressing wheel 2 is rotatably arranged on the support 4, the upper pressing wheel 1 is rotatably arranged at one end of the swing arm 3, and the other end of the swing arm 3 is connected with the output end of the turnover driving mechanism 5; the overturning driving mechanism 5 is used for driving the swing arm 3 to swing and driving the upper pinch roller 1 to overturn, so that the upper pinch roller 1 and the lower pinch roller 2 clamp the film.

The film is conveyed forwards by the traction of a traction roller, before the edge is clamped, according to the width of the film, a moving driving mechanism drives a moving seat 61 to transversely move to a proper position, a lower pressing wheel 2 abuts against one of film surfaces of the side edge of the film, a turnover driving mechanism 5 drives a swing arm 3 to swing towards the direction of the lower pressing wheel 2 to drive an upper pressing wheel 1 to turn over, so that the upper pressing wheel 1 moves to the position right above the lower pressing wheel 2, then the wheel surfaces of the upper pressing wheel 1 and the lower pressing wheel 2 clamp the film, and the friction force between the film and the upper pressing wheel 1 and the lower pressing wheel 2 drives the upper pressing wheel 1 and the lower pressing wheel 2 to rotate, so that the side edge of the film is kept flat and does not wrinkle in the whole traction process; when the edge clamping is not needed, the overturning driving mechanism 5 drives the swing arm 3 to swing towards the direction far away from the lower pinch roller 2, so that the upper pinch roller 1 swings to the lower part of the lower pinch roller 2 (see the part shown by the dotted line in the attached figure 4) to prevent the upper pinch roller 1 from causing obstruction. Therefore, the film edge clamping device is suitable for films with different widths, and has the advantages of compact structure, few parts and low manufacturing cost; the overturning driving mechanism 5 only needs to drive the swing arm 3 to swing in a reciprocating mode within a certain angle, clamping or loosening of the side edge of the film can be completed, and the operation is simple.

Preferably, the overturning driving mechanism 5 is a swing cylinder. Because the upper pinch roller 1 needs to be switched between two states of pressing and loosening, the swing cylinder is adopted, after the swing cylinder is set to be a proper rotating angle, the swing cylinder only needs to be switched between two states of rotating the rotating shaft of the swing cylinder clockwise to the head and rotating the rotating shaft of the swing cylinder anticlockwise to the head, the control logic is simple, and a positioning mechanism is not needed to be additionally arranged to position the swing amplitude of the swing arm 3, so that the structure of the whole device is simplified.

Specifically, referring to fig. 2, the support 4 includes a bottom plate 41, two receiving arms 46 symmetrically disposed on the upper surface of the bottom plate 41, and a C-shaped plate 42 disposed between the two receiving arms 46, and the lower pressing wheel 2 is disposed on the inner side of the C-shaped plate 42. Actually, the C-shaped plate 42 is composed of a connecting plate 421 and connecting arms 422 arranged at two ends of the connecting plate 421, the lower pressing wheel 2 is connected with the connecting plate 421 through screws, and the center line of the lower pressing wheel 2 is perpendicular to the connecting plate 421; the connecting arms 422 are screwed to the corresponding receiving arms 46.

Preferably, referring to fig. 2 and 3, the inner sides of the two receiving arms 46 are provided with support plates 43, and the C-shaped plates 42 are connected with the receiving arms 46 by screws. The supporting plate 43 is parallel to the bottom plate 41, and the supporting plate 43 not only supports the C-shaped plate 42 to ensure that the C-shaped plate 42 is stable in work, but also ensures the horizontal precision of the C-shaped plate 42 and the lower pinch roller 2 and avoids the wheel surface of the lower pinch roller 2 from inclining.

Preferably, the support 4 further includes a side plate 44 disposed at the rear side of the bottom plate 41, and a mounting portion 45 obliquely disposed on the side plate 44; the turnover driving mechanism 5 is fixed to the mounting portion 45. Therefore, the structure of the film edge clamping device is more compact, and the overturning driving mechanism 5 is prevented from interfering with other mechanisms.

Specifically, referring to fig. 2 and 3, the swing arm 3 includes a sleeve 31, a crank arm 32, and a steering plate 33, which are connected in sequence; the sleeve 31 and the steering plate 33 are both perpendicular to the crank arm 32, the sleeve 31 is fixedly sleeved on an output shaft of the turnover driving mechanism 5, and the upper pressure wheel 1 is rotatably arranged on the steering plate 33. The sleeve 31, the crank arm 32 and the steering plate 33 are formed by connecting in a welding mode, the structure is compact, and the overturning driving mechanism 5 and the upper pressing wheel 1 are effectively connected.

In one embodiment, referring to fig. 1, the position adjusting mechanism 6 includes a movable base 61 and a cross beam 62, the support 4 is detachably disposed on the top of the movable base 61, the movable base 61 is slidably disposed on the cross beam 62, and a movement driving mechanism for driving the movable base 61 to move laterally is disposed on the cross beam 62. When the films with different widths need to be produced, the moving driving mechanism drives the moving seat 61 to move transversely, the moving seat 61 is moved to a proper position according to the width of the films, then the overturning driving mechanism 5 drives the swing arm 3 to swing towards the direction of the lower pinch roller 2 to drive the upper pinch roller 1 to overturn, so that the upper pinch roller 1 is moved right above the lower pinch roller 2, then the surfaces of the upper pinch roller 1 and the lower pinch roller 2 clamp the films tightly, and the film edge clamping device is suitable for the films with different widths.

Further, the moving driving mechanism includes a lead screw 64 extending along the length direction of the cross beam 62 and a lead screw nut (not visible in the figure) disposed on the lead screw, the lead screw nut (not visible in the figure) is fixedly connected with the moving seat 61, the lead screw 64 is rotatably disposed on the cross beam 62, and one end of the lead screw 64 is provided with a lead screw driving mechanism 66 for driving the lead screw 64 to rotate. Compared with other transmission modes, the transmission mode of the screw rod and the screw rod nut enables the movable seat 61 to transversely move 61 stably, the positioning precision is high, and the movable seat 61 does not need to move automatically under the action of no screw rod driving mechanism due to the self-locking property of the screw rod, so that the stability of the film edge clamping device in work is ensured.

Preferably, a stepping motor can be provided as the screw rod driving mechanism 66, and the stepping motor drives the screw rod to rotate forward and backward, so that the transverse positions of the movable base 61 and the components on the movable base 61 can be adjusted according to the width of the film, and the operation is convenient and labor-saving. Of course, a hand wheel can be arranged to serve as the screw rod driving mechanism for manual adjustment, and the adjustment precision is high.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.

Claims

1. A film edge clamping device is characterized by comprising an upper pinch roller, a lower pinch roller, a swing arm, a support, a turnover driving mechanism fixedly arranged on the support and a position adjusting mechanism for driving the support to move along the width direction of a film; the lower pressing wheel is rotatably arranged on the support, the upper pressing wheel is rotatably arranged at one end of the swing arm, and the other end of the swing arm is connected with the output end of the turnover driving mechanism; the overturning driving mechanism is used for driving the swinging arm to swing and driving the upper pressing wheel to overturn, so that the upper pressing wheel and the lower pressing wheel clamp the film.

2. The film edge clamping device of claim 1, wherein the support comprises a bottom plate, two supporting arms symmetrically arranged on the upper surface of the bottom plate, and a C-shaped plate arranged between the two supporting arms, and the lower pressing wheel is arranged on the inner side of the C-shaped plate.

3. The film edging arrangement of claim 2, wherein the inner sides of the two receiving arms are provided with support plates supporting C-shaped plates, which are screwed to the receiving arms.

4. The film edge-clamping device as claimed in claim 2, wherein the support further comprises a side plate arranged at the rear side of the bottom plate, and a mounting part obliquely arranged on the side plate; the overturning driving mechanism is fixed on the mounting part.

5. The film edge clamping device according to claim 1, wherein the swing arm comprises a sleeve, a crank arm and a steering plate which are connected in sequence; the sleeve and the steering plate are perpendicular to the crank arm, the sleeve is fixedly sleeved on an output shaft of the turnover driving mechanism, and the upper pressing wheel is rotatably arranged on the steering plate.

6. The film edge clamping device according to any one of claims 1 to 5, wherein the turnover driving mechanism is a swing cylinder.

7. The film edge clamping device according to claim 1, wherein the position adjusting mechanism comprises a movable base and a cross beam, the support is detachably arranged on the top of the movable base, the movable base is slidably arranged on the cross beam, and a movement driving mechanism for driving the movable base to move transversely is arranged on the cross beam.

8. The film edge-clamping device of claim 7, wherein the moving driving mechanism comprises a screw rod extending along the length direction of the beam and a screw rod nut arranged on the screw rod, the screw rod nut is fixedly connected with the moving seat, the screw rod is rotatably arranged on the beam, and one end of the screw rod is provided with a screw rod driving mechanism for driving the screw rod to rotate.

9. The film edging device of claim 8, wherein the screw drive mechanism is a hand wheel.

10. The film edging device of claim 8, wherein the screw drive mechanism is a stepper motor.