Film swinging mechanism for casting machine

Abstract

The utility model provides a film swinging mechanism for a casting machine, which comprises a rack, a swinging component is rotatably connected on the rack along the width direction of a film, and the swinging component is driven by a driving piece to swing; the swing assembly comprises a swing frame, guide rollers are arranged on the two sides of the swing frame respectively, a rotating shaft is arranged between the two guide rollers corresponding to the swing frame, the rotating shaft is perpendicular to the guide rollers, and the swing frame is rotationally connected with the rack through the rotating shaft. The driving part comprises a hydraulic cylinder, one end of the hydraulic cylinder is rotationally connected with the rack, and the other end is rotationally connected with the swing frame. According to the structure, in the production process of the cast film, the hydraulic cylinder drives the swing frame to drive the guide roller to swing left and right on the rack, so that the cast film swings left and right at the position where the cast film is wound on the winding drum, and therefore, salient points or thicker positions on the surface of the cast film can be prevented from being stacked at the same position on the winding drum; the same position of the winding drum is prevented from protruding, and the quality of a film is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cast film production, in particular to a film swinging mechanism for a cast film machine. Background Art

[0002] Cast film is a non-stretched, non-directional flat extruded film produced by quenching the melt. Cast film has excellent heat sealing properties and excellent transparency, so it is widely used. In the production process of cast film, it is generally formed by melt extrusion of raw materials through a casting machine.

[0003] In the processing technology of cast film, after the cast film is formed, there will inevitably be spots on the surface of the film, or the thickness will inevitably be uneven along the width of the film. The convex points at the same position or the thicker film at the same position in the width direction will accumulate at the same position of the rolled film after being rolled into a roll, forming larger bulges, which can easily cause the subsequently rolled film to be stretched and affect the quality of the film. Utility Model Content

[0004] The technical solution of the utility model is achieved in this way:

[0005] The utility model provides a film swing mechanism for a casting machine, comprising a frame, a swing component is rotatably connected to the frame along the width direction of the film, and the swing component is driven to swing by a driving member;

[0006] The swing assembly includes a swing frame, guide rollers are respectively arranged on both sides of the swing frame, a rotating shaft is arranged between two corresponding guide rollers of the swing frame, the rotating shaft is perpendicular to the guide rollers, and the swing frame is rotatably connected to the frame through the rotating shaft;

[0007] The driving member comprises a hydraulic cylinder, one end of which is rotatably connected to the frame, and the other end of which is rotatably connected to the swing frame.

[0008] In one embodiment, the rotating shaft is arranged at the center of the swing frame.

[0009] In one embodiment, a plurality of support wheels are arranged on the side of the swing frame facing the frame, and a support plate is arranged at the position of the frame corresponding to the support wheels. The surface of the support wheel contacts the support plate, so that the support wheel supports the swing frame all around.

[0010] In one embodiment, a connecting plate is provided at a position of the swing frame corresponding to the supporting wheel, and the supporting wheel is mounted on the connecting plate.

[0011] In one embodiment, the driving member further includes a connecting seat, one end of the hydraulic cylinder is connected to the frame via the connecting seat, the connecting seat is rotatably connected to one end of the hydraulic cylinder, and the connecting seat is rotatably connected to the frame.

[0012] In one embodiment, the output end of the hydraulic cylinder is rotatably connected to the swing frame, and the cylinder body of the hydraulic cylinder is rotatably connected to the frame via a connecting seat.

[0013] In one embodiment, a first film guide roller and a second film guide roller are respectively arranged on both sides of the frame corresponding to the guide roller, and the film moves along the first film guide roller, the guide roller and the second film guide roller in sequence.

[0014] The advantages or beneficial effects of the above technical scheme at least include: in the production process of cast film, since a swinging assembly is rotatably connected to the frame along the width direction of the film, the swinging assembly is driven to swing by a driving member; the swinging assembly includes a swinging frame, guide rollers are respectively arranged on both sides of the swinging frame, and a rotating shaft is arranged between the two corresponding guide rollers of the swinging frame, the rotating shaft is perpendicular to the guide rollers, and the swinging frame is rotatably connected to the frame through the rotating shaft; the driving member includes a hydraulic cylinder, one end of the hydraulic cylinder is rotatably connected to the frame, and the other end is rotatably connected to the swinging frame. Therefore, through the drive of the hydraulic cylinder, the swinging frame can drive the guide roller to swing left and right on the frame, thereby driving the cast film to swing, so as to change the position of the cast film on the roll when it is rolled up, thereby avoiding the stacking of convex points or thicker positions on the surface of the cast film at the same position on the roll, thereby preventing a large bulge from occurring at the same position of the roll, so that the subsequently rolled film is not pulled by the large bulge, so as to ensure the quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0016] Figure 1 A schematic side view of the structure of a film swing mechanism according to an exemplary embodiment of the utility model is shown;

[0017] Figure 2 A schematic diagram of a top view of a film swing mechanism according to an exemplary embodiment of the utility model is shown;

[0018] Figure 3 The exemplary embodiment according to the present utility model is shown Figure 1 Schematic diagram of the local structure in;

[0019] Figure 4 A schematic diagram of a top view of a swing assembly and a driving member according to an exemplary embodiment of the utility model is shown;

[0020] Figure 5 A schematic top view of the structure of a frame and a driving member according to an exemplary embodiment of the utility model is shown.

[0021] Description of reference numerals:

[0022] 1. Frame;

[0023] 11. Support plate; 12. First film guide roller; 13. Second film guide roller;

[0024] 2. Swing assembly;

[0025] 21. Swing frame; 22. Guide roller; 23. Rotating shaft; 24. Support wheel; 25. Connecting plate;

[0026] 3. Driving parts;

[0027] 31. Hydraulic cylinder; 32. Connecting seat. DETAILED DESCRIPTION

[0028] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0031] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0032] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the utility model provides a film swing mechanism for a casting machine, comprising a frame 1, a swing assembly 2 is connected to the frame 1 and is rotatably connected along the width direction of the film, and the swing assembly 2 is driven to swing by a driving member 3;

[0033] The swing assembly 2 includes a swing frame 21, guide rollers 22 are respectively arranged on both sides of the swing frame 21, a rotating shaft 23 is arranged between the two corresponding guide rollers 22 of the swing frame 21, the rotating shaft 23 is perpendicular to the guide rollers 22, and the swing frame 21 is rotatably connected to the frame 1 through the rotating shaft 23;

[0034] The driving member 3 includes a hydraulic cylinder 31 , one end of which is rotatably connected to the frame 1 , and the other end of which is rotatably connected to the swing frame 21 .

[0035] With the above structure, during the production of cast film, since the frame 1 is connected to the swing assembly 2 in rotation along the width direction of the film, the swing assembly 2 is driven to swing by the driving member 3; the swing assembly 2 includes a swing frame 21, guide rollers 22 are respectively arranged on both sides of the swing frame 21, and a rotating shaft 23 is arranged between the two guide rollers 22 of the swing frame 21, and the rotating shaft 23 is perpendicular to the guide rollers 22, and the swing frame 21 is rotatably connected to the frame 1 through the rotating shaft 23; the driving member 3 includes a hydraulic cylinder 31, one end of the hydraulic cylinder 31 is connected to the frame 1 The frame 1 is rotatably connected, and the other end is rotatably connected to the swing frame 21. Therefore, through the drive of the hydraulic cylinder 31, the swing frame 21 can drive the guide roller 22 to swing left and right on the frame 1, thereby driving the cast film to swing, so as to change the position of the cast film on the roll when it is rolled up, so as to avoid the stacking of convex points or thicker positions on the surface of the cast film at the same position on the roll, thereby preventing a large bulge from occurring at the same position of the roll, so that the subsequently rolled film will not be pulled by the large bulge, so as to ensure the quality of the film.

[0036] In one embodiment, see Figure 2 and Figure 4 The rotating shaft 23 is arranged at the center of the swing frame 21. In actual use, the rotating shaft 23 is arranged at the center of the swing frame 21, so that the swinging amount of the guide rollers 22 on both sides of the swing frame 21 is the same, so that the offset of the cast film is balanced during the reciprocating swing of the swing frame 21, and the cast film is prevented from being offset on the guide rollers 22 during the swinging process.

[0037] In one embodiment, see Figure 3 , Figure 4 and Figure 5A plurality of support wheels 24 are arranged on the side of the swing frame 21 facing the frame 1, and a support plate 11 is arranged at the position of the frame 1 corresponding to the support wheel 24. The surface of the support wheel 24 abuts against the support plate 11, so that the support wheel 24 supports the surroundings of the swing frame 21. In actual use, the support wheel 24 can support the surroundings of the swing frame 21, so as to prevent the surroundings of the swing frame 21 from shaking during the swinging process of the swing frame 21, thereby affecting the swinging angle.

[0038] The swing frame 21 is provided with a connecting plate 25 at a position corresponding to the supporting wheel 24, and the supporting wheel 24 is mounted on the connecting plate 25. In actual use, the connecting plate 25 is used to mount the supporting wheel 24 on the swing frame 21.

[0039] In one embodiment, see Figure 2 , Figure 4 and Figure 5 The driving member 3 further includes a connecting seat 32 , one end of the hydraulic cylinder 31 is connected to the frame 1 via the connecting seat 32 , the connecting seat 32 is rotatably connected to one end of the hydraulic cylinder 31 , and the connecting seat 32 is rotatably connected to the frame 1 .

[0040] The output end of the hydraulic cylinder 31 is rotatably connected to the swing frame 21, and the cylinder body of the hydraulic cylinder 31 is rotatably connected to the frame 1 through the connecting seat 32. In actual use, the connecting seat 32 is used to connect the hydraulic cylinder 31 and the frame 1, and under the action of the rotatable connection between the hydraulic cylinder 31 and the connecting seat 32, the hydraulic cylinder 31 can be easily extended and retracted to drive the swing frame 21 to swing.

[0041] A first film guide roller 12 and a second film guide roller 13 are respectively arranged on both sides of the frame 1 corresponding to the guide roller 22 , and the film moves along the first film guide roller 12 , the guide roller 22 , and the second film guide roller 13 in sequence.

[0042] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0043] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above utility model, and these changes or modifications are still within the scope of the present utility model.

Claims

1. A film swing mechanism for a tape casting machine, It is characterized in that It comprises a frame, on which a swing assembly is rotatably connected along the width direction of the film, and the swing assembly is driven to swing by a driving member; The swing assembly includes a swing frame, guide rollers are respectively arranged on both sides of the swing frame, a rotating shaft is arranged between two corresponding guide rollers of the swing frame, the rotating shaft is perpendicular to the guide rollers, and the swing frame is rotatably connected to the frame through the rotating shaft; The driving member comprises a hydraulic cylinder, one end of which is rotatably connected to the frame, and the other end of which is rotatably connected to the swing frame.

2. The film swinging mechanism for a tape casting machine according to claim 1, It is characterized in that The rotating shaft is arranged at the center position of the swing frame.

3. The film swinging mechanism for a tape casting machine according to claim 1, It is characterized in that A plurality of supporting wheels are arranged on one side of the swing frame facing the frame, and a supporting plate is arranged at a position of the frame corresponding to the supporting wheels. The surface of the supporting wheel contacts the supporting plate, so that the supporting wheel supports the four sides of the swing frame.

4. The film swinging mechanism for a tape casting machine according to claim 3, It is characterized in that The swing frame is provided with a connecting plate at a position corresponding to the supporting wheel, and the supporting wheel is mounted on the connecting plate.

5. The film swinging mechanism for a tape casting machine according to claim 1, It is characterized in that The driving member also includes a connecting seat, one end of the hydraulic cylinder is connected to the frame through the connecting seat, the connecting seat is rotatably connected to one end of the hydraulic cylinder, and the connecting seat is rotatably connected to the frame.

6. The film swinging mechanism for a tape casting machine according to claim 5, It is characterized in that The output end of the hydraulic cylinder is rotatably connected to the swing frame, and the cylinder body of the hydraulic cylinder is rotatably connected to the frame through a connecting seat.

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