CN112027765A - Film presss from both sides limit device - Google Patents

Abstract

The invention discloses a film edge clamping device, comprising an upper pressing wheel, a lower pressing wheel, a swing arm, a support, a turning drive mechanism fixed on the support, and a position for driving the support to move along the film width direction Adjustment mechanism; the lower pressing wheel is rotatably arranged on the support, the upper pressing wheel is rotatably arranged on one end of the swing arm, and the other end of the swing arm is connected with the output end of the overturning drive mechanism; the overturning drive mechanism It is used to drive the swing arm to swing and drive the upper pressing wheel to turn over, so that the upper pressing wheel and the lower pressing wheel clamp the film. The film edge clamping device provided by the invention has a compact structure, few components and low manufacturing cost, and the movable base is driven to move laterally to a suitable position by a moving driving mechanism, so that it is suitable for films of different widths and sizes.

Description

A film edge clamping device

technical field

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

Background technique

During the film winding process, both sides of the film need to be clamped to keep the film flat and wrinkle-free during the entire pulling process. The existing film edge clamping device has the following shortcomings: 1. The structure is complex and the manufacturing cost is high; 2. The film edge clamping device is generally fixed on the frame of the film production line, so it can only clamp the film with a specific width, It cannot adapt to films of different widths and sizes, and has poor applicability.

It can be seen that the existing technology still needs to be improved and improved.

SUMMARY OF THE INVENTION

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a film edge clamping device with a simple structure, so that the film edge clamping device can be applied to films of different widths and sizes.

In order to achieve the above object, the present invention has adopted the following technical solutions:

A film edge clamping device, comprising an upper pressing wheel, a lower pressing wheel, a swing arm, a support, a turning drive mechanism fixed on the support, and a position adjustment mechanism for driving the support to move along the film width direction; The lower pressing wheel is rotatably arranged on the support, the upper pressing wheel is rotatably arranged on one end of the swing arm, and the other end of the swing arm is connected with the output end of the overturning drive mechanism; the overturning drive mechanism is used to drive the swing The arm swings and drives the upper pressing wheel to turn over, 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, 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.

The inner sides of the two receiving support arms are provided with support plates, the support plates support a C-shaped plate, and the C-shaped plate is screwed with the receiving support arms.

The support further includes a side plate arranged on the rear side of the bottom plate, and an installation portion inclinedly arranged on the side plate; the overturning driving mechanism is fixed on the installation portion.

The swing arm includes a sleeve, a crank arm, and a steering plate that are connected in sequence; the sleeve and the steering plate are both perpendicular to the crank arm, the sleeve is fixedly sleeved on the output shaft of the overturning drive mechanism, and the upper The pinch roller is rotatably arranged on the steering plate.

The turning drive mechanism is a swinging cylinder.

The position adjustment mechanism includes a moving seat and a beam, the support is detachably arranged on the top of the moving seat, the moving seat is slidably arranged on the beam, and the beam is provided with a moving driving mechanism for driving the moving seat to move laterally .

The moving drive mechanism includes a lead screw extending along the length of the beam and a lead screw nut arranged on the lead screw, the lead screw nut is fixedly connected with the moving seat, the lead screw is rotatably arranged on the beam, and the lead screw is rotatably arranged on the beam. One end of the screw rod is provided with a screw drive mechanism for driving the screw rod to rotate.

The screw drive mechanism is a hand wheel.

The screw drive mechanism is a stepping motor.

Beneficial effects:

Compared with the prior art, the film edge clamping device provided by the present invention drives the moving base to move laterally to an appropriate position through the moving driving mechanism, so that it is suitable for films of different widths and sizes. In addition, the film edge clamping device has a compact structure, few components, and low manufacturing cost; the overturning drive mechanism drives the swing arm to drive the upper pressing wheel to turn over to the top of the lower pressing wheel, and then the upper and lower pressing wheels together. Clamp so that the sides of the film remain flat and wrinkle-free throughout the pulling process.

Description of drawings

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

FIG. 2 is a perspective view 1 of some components in the film edge clamping device provided by the present invention.

FIG. 3 is a perspective view 2 of some components in the film edge clamping device provided by the present invention.

FIG. 4 is a schematic diagram of the movement track of the upper pressing wheel in the film edge clamping device provided by the present invention.

Description of main component symbols: 1-upper pressing wheel, 2-lower pressing wheel, 3-swing arm, 4-support, 5-turning drive mechanism, 6-position adjustment mechanism, 41-base plate, 46-undertaking support arm, 42 -C-type plate, 421-connecting plate, 422-connecting arm, 43-support plate, 44-side plate, 45-installation part, 31-sleeve, 32-curved arm, 33-steering plate, 61-moving seat, 62 - Beam.

Detailed ways

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

1-4, the present invention provides a film edge clamping device, including an upper pressing wheel 1, a lower pressing wheel 2, a swing arm 3, a support 4, a turning drive mechanism 5 fixed on the support 4, and A position adjustment mechanism 6 for driving the support 4 to move along the film width direction; the lower pressing wheel 2 is rotatably arranged on the support 4, and the upper pressing wheel 1 is rotatably arranged at one end of the swing arm 3, and the swing The other end of the arm 3 is connected to the output end of the overturning drive mechanism 5; the overturning drive mechanism 5 is used to drive the swing arm 3 to swing and drive the upper pressing wheel 1 to turn over, so that the upper pressing wheel 1 and the lower pressing wheel 2 clamp the film.

The film is transported forward by the traction of the traction roller. Before the edge is clamped, according to the width of the film, the moving drive mechanism drives the moving base 61 to move laterally to a suitable position, and the lower pressing wheel 2 abuts on one of the film surfaces on the side of the film. Up, the overturning drive mechanism 5 drives the swing arm 3 to swing in the direction of the lower pressure wheel 2, and drives the upper pressure wheel 1 to turn over, so that the upper pressure wheel 1 moves to the top of the lower pressure wheel 2, and then the upper pressure wheel 1 and the lower pressure wheel are turned. The wheel surface of 2 clamps the film, and the friction between the film and the upper and lower pressure rollers 1 and 2 drives the upper and lower pressure rollers 1 and 2 to rotate, so that the sides of the film remain flat during the entire traction process. , without wrinkling; when the edge is not required, the overturning drive mechanism 5 drives the swing arm 3 to swing away from the lower pressing wheel 2, so that the upper pressing wheel 1 swings to the bottom of the lower pressing wheel 2 (see the dotted line in Figure 4). shown part), so as not to hinder the upper pressure roller 1. It can be seen that the film edge clamping device provided by the present invention is suitable for films of different widths, and has a compact structure, few components and low manufacturing cost; the overturning drive mechanism 5 only needs to drive the swing arm 3 to swing back and forth within a certain angle, The clamping or loosening of the side of the film can be completed, and the operation is simple.

Preferably, the overturning drive mechanism 5 is a swinging cylinder. Since the upper pressure roller 1 needs to be switched between the two states of pressing and loosening, a swinging cylinder is used. After setting it to a suitable rotation angle, it is only necessary to rotate the shaft of the swinging cylinder clockwise to the end and "the swinging cylinder The rotating shaft can be switched between the two states by rotating counterclockwise to the end. The control logic is simple, and there is no need to set up a positioning mechanism to position the swing amplitude of the swing arm 3, which simplifies the structure of the entire device.

Specifically, please refer to FIG. 2 , the support 4 includes a bottom plate 41 , two supporting arms 46 symmetrically disposed on the upper surface of the bottom plate 41 , and a C-shaped plate 42 disposed between the two supporting arms 46 . The lower pressing wheel 2 is arranged on the inner side of the C-shaped plate 42 . In fact, the C-shaped plate 42 is composed of a connecting plate 421 and connecting arms 422 arranged at both ends of the connecting plate 421. The lower pressing wheel 2 is connected to the connecting plate 421 by screws, and the center line of the lower pressing wheel 2 is perpendicular to the connection. plate 421; the connecting arm 422 is screwed with the corresponding supporting arm 46.

Preferably, please refer to FIG. 2 and FIG. 3 , the inner side of the two supporting arms 46 is provided with a support plate 43 , and the C-shaped plate 42 is connected with the supporting arms 46 by screws. The supporting plate 43 is parallel to the bottom plate 41. The supporting plate 43 not only supports the C-type plate 42, so that the C-type plate 42 can be kept stable during operation, but also ensures the horizontal accuracy of the C-type plate 42 and the lower pressing wheel 2, avoiding The wheel surface of the lower pressing wheel 2 is inclined.

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

Specifically, please refer to FIG. 2 and FIG. 3 , the swing arm 3 includes a sleeve 31 , a crank arm 32 , and a steering plate 33 connected in sequence; the sleeve 31 and the steering plate 33 are both perpendicular to the crank arm 32 , so The sleeve 31 is fixedly sleeved on the output shaft of the overturning drive mechanism 5 , and the upper pressing wheel 1 is rotatably arranged on the steering plate 33 . The sleeve 31 , the crank arm 32 , and the turning plate 33 are connected by welding, and have a compact structure, which can effectively connect the overturning drive mechanism 5 and the upper pressing wheel 1 .

In one embodiment, please refer to FIG. 1 , the position adjustment mechanism 6 includes a moving base 61 and a beam 62 , the support 4 is detachably arranged on the top of the moving base 61 , and the moving base 61 is slidably arranged On the beam 62, there is a moving driving mechanism for driving the moving base 61 to move laterally. When it is necessary to produce films of different widths, the moving drive mechanism drives the moving base 61 to move laterally, and moves the moving base 61 to an appropriate position according to the width of the film, and then the overturning drive mechanism 5 drives the swing arm 3 toward the direction of the lower pressure roller 2 Swing to drive the upper pressure roller 1 to turn over, so that the upper pressure roller 1 is moved to the top of the lower pressure roller 2, and then the surfaces of the upper pressure roller 1 and the lower pressure roller 2 clamp the film, so that the film edge clamping device is suitable for use with Films of different widths.

Further, the moving drive mechanism includes a lead screw 64 extending along the length direction of the beam 62 and a lead screw nut (not visible in the figure) provided on the lead screw, the lead screw nut (not visible in the figure) and the moving seat. 61 is fixedly connected, the screw rod 64 is rotatably arranged on the beam 62, and one end of the screw rod 64 is provided with a screw rod driving mechanism 66 for driving the screw rod 64 to rotate. Compared with other transmission modes, the transmission mode of the lead screw and the lead screw nut makes the lateral movement of the movable seat 61 61 stable, and the positioning accuracy is high, and because the screw has self-locking, the movable seat 61 is not under the action of the screw drive mechanism. , without self-movement, to ensure the stability of the film edge clamping device in work.

Preferably, a stepping motor can be set as the screw driving mechanism 66, and the stepping motor drives the screw to rotate forward and reverse, so as to adjust the lateral position of the movable seat 61 and the components on the movable seat 61 according to the width of the film, Convenient and labor-saving. Of course, a hand wheel can be set as the screw drive mechanism for manual adjustment, and the adjustment precision is high.

It can be understood that, for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present invention, and all these changes or replacements should belong to the protection scope of the present invention.

Claims (10)

1. A film edge clamping device, characterized in that it comprises an upper pressing wheel, a lower pressing wheel, a swing arm, a support, a turning drive mechanism that is fixedly arranged on the support, and is used to drive the support to move along the film width direction The position adjustment mechanism; 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 overturning drive mechanism; the overturning The driving mechanism is used to drive the swing arm to swing and drive the upper pressing wheel to turn over, so that the upper pressing wheel and the lower pressing wheel clamp the film. 2 . The film edge clamping device according to 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 supporting arm arranged between the two supporting arms. 3 . The lower pressing wheel is arranged on the inner side of the C-shaped plate. 3 . The film edge clamping device according to claim 2 , wherein the inner side of the two supporting arms is provided with a supporting plate, the supporting plate supports a C-shaped plate, and the C-shaped plate is screwed with the supporting supporting arm. 4 . . 4 . The film edge clamping device according to claim 2 , wherein the support further comprises a side plate arranged on the rear side of the bottom plate, and a mounting portion arranged obliquely on the side plate; the inversion driving mechanism is fixed on the side plate. 5 . on the installation section. 5 . The film edge clamping device according to claim 1 , wherein the swing arm comprises a sleeve, a crank arm, and a turning plate connected in sequence; the sleeve and the turning plate are both perpendicular to the crank arm, so the The sleeve is fixedly sleeved on the output shaft of the overturning drive 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 1-5, wherein the inversion driving mechanism is a swinging cylinder. 7 . The film edge clamping device according to claim 1 , wherein the position adjustment mechanism comprises a movable seat and a beam, the support is detachably arranged on the top of the movable seat, and the movable seat is slidably arranged. 8 . On the beam, the beam is provided with a moving drive mechanism for driving the moving base to move laterally. 8 . The film edge clamping device according to claim 7 , wherein the moving driving mechanism comprises a lead screw extending along the length of the beam and a lead screw nut arranged on the lead screw, and the lead screw nut is connected with the moving The base is fixedly connected, 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 edge clamping device according to claim 8 , wherein the screw driving mechanism is a hand wheel. 10 . 10 . The film edge clamping device according to claim 8 , wherein the screw driving mechanism is a stepping motor. 11 .

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