An automatic film stretching mechanism

Abstract

This utility model discloses an automatic film-stretching mechanism, comprising: a first frame and a second frame; the first frame is provided with a film-stretching bracket, a rotating rod, and a driving mechanism, the output end of the driving mechanism being connected to the rotating rod; the film-stretching bracket is provided with a rotating hole, one end of the rotating rod is connected to the output end of the driving mechanism, and the other end of the rotating rod passes through the rotating hole on the film-stretching bracket and is fixed to the first frame; the second frame is provided with a mounting bracket, which is provided with a mounting boss; the opening of the material film is wound around the rotating rod, which is rotated by the driving mechanism, and the rotation of the rotating rod drives the material film to rotate, which in turn drives the mounting boss to rotate. This utility model uses a film-stretching bracket, which is distributed correspondingly at the edge of the product, continuously outputting the roll-shaped material film, thereby continuously coating the edge of the product, avoiding coating the entire surface of the product, and effectively reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of automatic film stretching technology, and in particular to an automatic film stretching mechanism. Background Technology

[0002] Currently, full-surface lamination is the most common process used in industrial production for product coating. However, this process has revealed many serious problems in practical applications. On the one hand, a large amount of roll-shaped film is wasted, because many products only require edge lamination to meet their usage needs; full lamination undoubtedly represents a huge waste of film. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides an automatic film-pulling mechanism. By setting film-pulling supports that are distributed at the edge of the product, the material film is continuously output, thereby continuously coating the edge of the product, avoiding coating the entire surface of the product, and effectively reducing production costs.

[0004] Accordingly, this utility model proposes an automatic film stretching mechanism, which includes: a first frame and a second frame;

[0005] The first frame is provided with multiple film-stretching supports, a rotating rod and a driving mechanism. The driving rod mechanism is located on one side of the multiple film-stretching supports, and the output end of the driving mechanism is connected to the rotating rod, and the rotating rod is driven by the driving mechanism to rotate.

[0006] Each of the film-stretching supports is provided with a rotating hole at the same height. One end of the rotating rod is connected to the output end of the drive mechanism, and the other end of the rotating rod passes through the rotating holes on the multiple film-stretching supports and is fixed to the first frame.

[0007] The second frame is provided with a plurality of the aforementioned mounting brackets, each of the aforementioned mounting brackets being provided with a mounting boss for mounting a material film, the mounting boss being rotatably mounted on the mounting bracket;

[0008] The opening of the material film is wound around the rotating rod, which is driven by the driving mechanism to rotate. The rotation of the rotating rod causes the material film to rotate, and the rotation of the material film causes the mounting boss to rotate.

[0009] Preferably, the rotating rod is provided with a plurality of limiting parts, and the plurality of limiting parts are spaced apart along the axial direction of the rotating rod.

[0010] Preferably, each of the limiting parts includes two limiting discs, which are sleeved on the rotating rod and are fixedly connected to the rotating rod.

[0011] Preferably, any of the limiting discs is provided with a plurality of connecting grooves, and the plurality of connecting grooves are distributed circumferentially with the center of the limiting disc as the reference.

[0012] Preferably, the membrane support includes a first horizontal plate and a first vertical plate, and the first horizontal plate and the first vertical plate are connected to form an L-shaped membrane support;

[0013] The first vertical plate is provided with multiple first fixing slots.

[0014] Preferably, a first leveling part is provided on one side of the first vertical plate. The first leveling part includes a first connecting block and a first limiting plate provided on the first connecting block. The first limiting plate is provided with a first limiting hole.

[0015] Preferably, the mounting bracket includes: a second horizontal plate and a second vertical plate, the second horizontal plate and the second vertical plate being connected to form an L-shaped mounting bracket;

[0016] The second vertical plate is provided with multiple second fixing slots.

[0017] Preferably, the second vertical plate is provided with a second leveling part, the second leveling part including: a second connecting block and a second limiting plate provided on the second connecting block, the second limiting plate being provided with a second limiting hole.

[0018] Preferably, the driving mechanism includes a drive motor and a control device, wherein the drive motor is mounted on the corresponding film stretching bracket, and the output end of the drive motor is fixedly connected to one end of the rotating rod;

[0019] The control device is installed on one side of the first frame and is electrically connected to the drive motor.

[0020] Preferably, the bottom of the first frame is provided with a first cross groove, and the bottom of the second frame is provided with a second cross groove.

[0021] The beneficial effects of this utility model are:

[0022] This invention features an automatic film-pulling mechanism with film-pulling supports distributed along the product edges. The roll-shaped film continuously outputs material film, thus continuously coating the product edges and avoiding the need to coat the entire product surface, effectively reducing production costs. The invention also includes a mounting bracket that mounts the corresponding roll-shaped film onto a mounting boss. The rotating mounting boss reduces the force between the roll-shaped film and the boss, ensuring continuous output of material film and thus continuous coating of the product edges. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the automatic film-pulling mechanism in this utility model;

[0025] Figure 2 This is a front view of the membrane support structure in this utility model;

[0026] Figure 3 This is a top view of the membrane support structure in this utility model;

[0027] Figure 4 This is a front view of the mounting bracket in this utility model;

[0028] Figure 5 This is a top view of the mounting bracket in this utility model.

[0029] In the attached drawings: 1. First frame; 11. Film stretching support; 111. First horizontal plate; 1111. First fixing groove; 112. First vertical plate; 113. First leveling part; 1131. First connecting block; 1132. First limiting plate; 1133. First limiting hole; 1134. Partition plate; 12. Rotating rod; 13. First mounting base plate; 131. First cross groove; 14. Limiting part; 141. Limiting disc; 1411. Connecting groove; 142. Sleeve; 2. Second frame; 21. Mounting bracket; 211. Second horizontal plate; 212. Second vertical plate; 213. Second leveling part; 2131. Second connecting block; 2132. Second limiting plate; 2133. Second limiting hole; 22. Mounting boss; 23. Second mounting base plate; 231. Second cross groove; 3. Drive mechanism; 31. Drive motor; 32. Control device. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Figure 1 A schematic diagram of the automatic film-pulling mechanism in this invention is shown. Figure 2The front view of the membrane support structure of this invention is shown. Figure 3 This shows a top view of the membrane support structure of this invention. Figure 4 The front view of the mounting bracket in this utility model is shown. Figure 5 The diagram shows a top view of the mounting bracket in this invention. The automatic film-stretching mechanism includes a first frame 1 and a second frame 2. The first frame 1 is equipped with multiple film-stretching brackets 11, rotating rods 12, and a drive mechanism 3. The drive mechanism 3 is located on one side of each film-stretching bracket 11, and its output end is connected to the rotating rod 12, which rotates under the drive of the drive mechanism 3. Each film-stretching bracket 11 has a rotating hole at the same height. One end of the rotating rod is connected to the output end of the drive mechanism 3. The other end of the moving rod 12 passes through the rotating holes on multiple film-stretching brackets 11 and is fixed to the first frame 1. The second frame 2 is provided with multiple mounting brackets 21, each mounting bracket 21 having a mounting boss 22 for mounting the material film. The mounting boss 22 is rotatably mounted on the mounting bracket 21. The opening of the material film is wound around the rotating rod 12, which is rotated by the driving mechanism 3. The rotation of the rotating rod 12 drives the material film to rotate, and the rotation of the material film drives the mounting boss 22 to rotate. The first frame 1 has a first mounting base plate 13, two film-stretching brackets 11, and a rotating rod 12. The two film-stretching brackets 11 are mounted on opposite sides of the first mounting base plate 13. The rotating rod 12 passes through the rotating holes on the two film-stretching brackets 11, thereby connecting the two film-stretching brackets 11. The second frame 2 has a second mounting base plate 23 and two mounting brackets 21. The two mounting brackets 21 are installed on opposite sides of the second mounting base plate 23, that is, the mounting brackets 21 and the corresponding film-pulling brackets 11 are located on the same horizontal line. When the material film is stuck on the mounting boss 22, the opening of the material film is connected to the rotating rod 12, so that the rotating rod 12 is driven by the driving mechanism 3 to rotate. The rotating rod 12 exerts a force on the material film wound on the rotating rod 12, so that the material film wound on the rotating rod 12 exerts a force on the material film mounted on the mounting boss 22, driving the roll of material film to rotate, and thus driving the mounting boss 22 to rotate. The rotation of the mounting boss 22 reduces the force between the material film and the mounting boss 22, realizing continuous output of material film, and thus continuously coating the edges of the product, avoiding coating the entire surface of the product, effectively reducing production costs.

[0032] Furthermore, the rotating rod 12 is provided with a plurality of limiting parts 14, which are spaced apart along the axial direction of the rotating rod 12. In this embodiment, the limiting parts 14 are used to limit the storage range of the material film. Since the material film has two layers, the first layer is used to cover the edge of the corresponding product, and the second layer is used to protect the adhesive side of the first layer. The limiting parts 14 limit the storage range of the second layer, preventing the second layer from winding along the surface of the rotating rod 12, which would change the output direction of the entire material film and make it impossible to accurately coat the edge of the product, thus improving the accuracy of coating.

[0033] It should be noted that the rotating rod 12 is provided with two limiting parts 14, but the number of limiting parts 14 can be adjusted according to the number of the film stretching bracket 11 and the mounting bracket 21. That is, when the number of mounting brackets 21 on the second frame 2 is three, the number of limiting parts 14 will also change to three.

[0034] Furthermore, each of the limiting portions 14 includes two limiting discs 141 and a sleeve 142. The two limiting discs 141 are fixedly connected to both ends of the sleeve 142 to form an I-beam. The I-beam is sleeved on the rotating rod 12 and fixedly connected to the rotating rod 12. The inner wall of the sleeve 142 abuts against the surface of the rotating rod 12. When the rotating rod 12 is driven by the driving mechanism 3 to rotate, the rotating rod 12 drives the I-beam to rotate. The rotation of the I-beam exerts a force on the material film wrapped around the limiting portion 14. The material film wrapped around the limiting portion 14 continues to wrap under the influence of this force, that is, the second layer of material film is wrapped around the surface of the sleeve 142. The two limiting discs 141 limit the storage range of the second layer of material film, preventing the second layer of material film from exceeding the fixed storage range and causing the output direction of the entire material film to change, making it impossible to accurately coat the edge of the product, which helps to improve the accuracy of coating.

[0035] It should be noted that two fixing blocks can be provided at both ends of the limiting disc 141. The two fixing blocks are detachably fixed to the rotating rod 12, and the two fixing blocks clamp the corresponding limiting disc 141 to fix the limiting disc 141 to the rotating rod 12, or the limiting disc 141 is welded to the rotating rod 12 to fix the limiting disc 141 to the rotating rod 12.

[0036] Furthermore, each of the limiting discs 141 is provided with a plurality of connecting grooves 1411, and the plurality of connecting grooves 1411 are distributed circumferentially with the center of the limiting disc 141 as the reference. In this embodiment, each of the limiting discs 141 is provided with eight connecting grooves 1411. The eight connecting grooves 1411 are circumferentially distributed with the center of the limiting disc 141 as the reference, that is, the included angle formed by the axes of two adjacent connecting grooves 1411 is 45°. When the opening of the material film is wound on the I-beam, the opening of the material film is wound on the limiting disc 141 based on the connecting groove 1411, and the remaining part is wound on the sleeve 142. The opening of the material film is wound on the connecting groove 1411, which ensures that one end of the second layer of material film remains connected to the limiting part 14, avoiding separation from the roller. This prevents the entire material film from being continuously output by the rotation of the rotating rod 12 to cover the edge of the product. This helps to ensure that the automatic film stretching mechanism can continuously output material to cover the edge of the product.

[0037] Furthermore, the film-stretching bracket 11 includes a first horizontal plate 111 and a first vertical plate 112, which are connected to form an L-shaped film-stretching bracket 11. The first horizontal plate 111 has a plurality of first fixing grooves 1111. In this embodiment, the first horizontal plate 111 is located at the bottom of the first vertical plate 112 and abuts against the first mounting plate. The first horizontal plate 111 has two first fixing grooves 1111, and corresponding fixing components can be installed in the two first fixing grooves 1111. Installing the corresponding fixing components in the two first fixing grooves 1111 can fix the first horizontal plate 111 onto the first mounting base plate 13, that is, fix the film-stretching bracket 11 onto the first mounting base plate 13. This prevents the film-stretching bracket 11 from moving independently during use, which would cause a change in the output direction of the entire material film and make it impossible to accurately coat the edges of the product, thus improving the accuracy of the coating process.

[0038] Furthermore, a first leveling portion 113 is provided on one side of the first vertical plate 112. The first leveling portion 113 includes a first connecting block 1131 and a first limiting plate 1132 disposed on the first connecting block 1131. The first limiting plate 1132 is provided with a first limiting hole 1133. The first leveling portion 113 is used to level the material film. The first connecting block 1131 is fixed on the first vertical plate 112 and is perpendicular to the first vertical plate 112. The height of the first connecting block 1131 is located below the rotating rod 12. The first limiting hole 1133 is located at the center of the first connecting block 1131, and the inner wall of the first limiting hole 1133 is polished smooth. When the corresponding material film passes through the first limiting hole 1133, the surface of the material film abuts against the edge of the first limiting hole 1133, reducing friction with the film and avoiding damage to the film during the smoothing process. This helps ensure that the material film remains flat during continuous output. That is, when the film passes through the first limiting hole 1133, due to the constraint of the first limiting hole 1133, any wrinkles on the film will be smoothed out, and any misaligned film will be corrected to the correct position. At the same time, the smooth surface of the first limiting plate 1132 reduces friction with the film, ensuring that the film can pass smoothly and reducing the occurrence of jamming or damage, which helps improve the stability of edge coating of the product.

[0039] It should be noted that the first limiting hole 1133 has a separator plate 1134 for separating the first layer of material film and the second layer of material film. The separator plate 1134 is horizontally arranged with the first mounting base plate 13, and the two ends of the separator plate 1134 are fixedly connected to the two inner walls of the first limiting hole 1133.

[0040] Furthermore, the mounting bracket 21 includes a second horizontal plate 211 and a second vertical plate 212, which are connected to form an L-shaped mounting bracket 21. The second horizontal plate 211 has a plurality of second fixing slots. In this embodiment, the second horizontal plate 211 is located at the bottom of the second vertical plate 212 and abuts against the second mounting plate. The second horizontal plate 211 has two second fixing slots, and corresponding fixing components can be installed in these slots. Installing the corresponding fixing components in the two second fixing slots can fix the second horizontal plate 211 onto the second mounting base plate 23, that is, fix the mounting bracket onto the second mounting base plate 23. This prevents the mounting bracket from moving independently during use, which could change the output direction of the entire material film and make it impossible to accurately coat the product edges, thus improving the accuracy of the coating process.

[0041] Furthermore, the second vertical plate 212 is provided with a second smoothing portion 213, which includes a second connecting block 2131 and a second limiting plate 2132 disposed on the second connecting block 2131. The second limiting plate 2132 is provided with a second limiting hole 2133. In this embodiment, the second smoothing portion 213 is used to smooth the material film. The second connecting block 2131 is fixed on the second vertical plate 212 and is perpendicular to the second vertical plate 212. The height of the second connecting block 2131 is located below the mounting boss 22. The second limiting hole 2133 is located at the center of the second connecting block 2131, and the inner wall of the second limiting hole 2133 is polished smooth. When the corresponding material film passes through the second limiting hole 2133, the surface of the material film abuts against the edge of the second limiting hole 2133, reducing friction with the film and avoiding damage to the film during the smoothing process. This helps ensure that the material film remains flat during continuous output. That is, when the film passes through the second limiting hole 2133, due to the constraint of the second limiting hole 2133, any wrinkles on the film will be smoothed out, and any misaligned film will be corrected to the correct position. At the same time, the smooth surface of the second limiting plate 2132 reduces friction with the film, ensuring that the film can pass smoothly and reducing the occurrence of jamming or damage, which helps improve the stability of edge coating of the product.

[0042] Furthermore, the driving mechanism 3 includes a drive motor 31 and a control device 32. The drive motor 31 is mounted on the corresponding film-pulling bracket 11, and the output end of the drive motor 31 is fixedly connected to one end of the rotating rod 12. The control device 32 is mounted on one side of the first frame 1 and is electrically connected to the drive motor 31. In this embodiment, the drive motor 31 operates under the control of the control device 32. That is, when the operator manipulates the control device 32 to make the drive motor 31 work, the output end of the drive motor 31 can be driven to rotate, thereby driving the rotating rod 12 to rotate and continuously outputting material film. Conversely, when the operator manipulates the control device 32 to stop the drive motor 31 from working, the output end of the drive motor 31 stops rotating, thereby causing the rotating rod 12 to stop rotating and stopping the output of material film. This avoids the automatic film-pulling mechanism from continuously pulling film when the product has not moved to the corresponding position, resulting in material waste. It is beneficial to pull film according to the actual production situation and reduce material waste.

[0043] Furthermore, the bottom of the first frame 1 is provided with a first cross groove 131, and the bottom of the second frame 2 is provided with a second cross groove. In this embodiment, the bottom of the first frame 1 is provided with a first cross groove 131, that is, the first mounting plate in the first frame 1 is provided with a first cross groove 131, and the center of the first cross groove 131 coincides with the center of the first mounting plate. The first cross groove 131 helps to fix the first frame 1 in the corresponding position. The first cross groove 131 is composed of two mutually perpendicular connecting grooves 1411. Both ends of the two mutually perpendicular connecting grooves 1411 can be provided with fixing components. The first frame 1 is fixed in the working position by four fixing components, avoiding the risk of the first frame 1 moving on its own during use, which is conducive to ensuring the operation of the frame 1. The accuracy of product lamination; similarly, the bottom of the second frame 2 is provided with a second cross groove, that is, the second mounting plate in the second frame 2 is provided with a second cross groove, and the center of the second cross groove coincides with the center of the second mounting plate. The second cross groove helps the second frame 2 to be fixedly installed in the corresponding position. The second cross groove is composed of two mutually perpendicular connecting grooves 1411. Both ends of the two mutually perpendicular connecting grooves 1411 can be provided with fixing components. The second frame 2 is fixed in the working position by four fixing components, avoiding the risk of the second frame 2 moving on its own during use, which helps to ensure the accuracy of product lamination.

[0044] In summary, this invention, by setting up film-pulling supports in the automatic film-pulling mechanism, with the supports correspondingly distributed at the product edge, continuously outputs roll-shaped material film, thereby continuously coating the product edge and avoiding coating the entire product surface, effectively reducing production costs. This invention also includes an installation bracket that mounts the corresponding roll-shaped material film onto an installation boss. The installation boss rotates accordingly, reducing the force between the roll-shaped material film and the installation boss, achieving continuous output of the roll-shaped material film, and thus continuously coating the product edge.

[0045] Furthermore, the above description provides a detailed introduction to an automatic film stretching mechanism provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An automatic film pulling mechanism characterized by, The automatic film stretching mechanism includes: a first frame and a second frame; The first frame is provided with multiple film-stretching supports, a rotating rod and a driving mechanism. The driving mechanism is located on one side of the multiple film-stretching supports, and the output end of the driving mechanism is connected to the rotating rod, and the rotating rod is driven by the driving mechanism to rotate. Each of the film-stretching supports is provided with a rotating hole at the same height. One end of the rotating rod is connected to the output end of the drive mechanism, and the other end of the rotating rod passes through the rotating holes on the multiple film-stretching supports and is fixed to the first frame. The second frame is provided with a plurality of mounting brackets, each of which is provided with a mounting boss for mounting a material film, and the mounting boss is rotatably mounted on the mounting bracket; The opening of the material film is wound around the rotating rod, which is driven by the driving mechanism. The rotation of the rotating rod causes the material film to rotate, and the rotation of the material film causes the mounting boss to rotate.

2. The automatic membrane pulling mechanism according to claim 1, characterized in that, The rotating rod is provided with a plurality of limiting parts, which are spaced apart along the axial direction of the rotating rod.

3. The automatic membrane pulling mechanism according to claim 2, wherein, Each of the limiting parts includes two limiting discs and a sleeve. The two limiting discs are respectively fixedly connected to both ends of the sleeve to form an I-beam wheel. The I-beam wheel is sleeved on the rotating rod and is fixedly connected to the rotating rod.

4. The automatic membrane pulling mechanism according to claim 3, wherein, Each of the limiting discs is provided with multiple connecting slots, which are distributed circumferentially with the center of the limiting disc as the reference.

5. The automatic membrane pulling mechanism according to claim 1, wherein, The membrane support includes a first horizontal plate and a first vertical plate, which are connected to form an L-shaped membrane support. The first vertical plate is provided with multiple first fixing slots.

6. The automatic membrane pulling mechanism according to claim 5, wherein, A first leveling part is provided on one side of the first vertical plate. The first leveling part includes a first connecting block and a first limiting plate provided on the first connecting block. The first limiting plate is provided with a first limiting hole.

7. The automatic membrane pulling mechanism according to claim 1, wherein The mounting bracket includes: a second horizontal plate and a second vertical plate, the second horizontal plate and the second vertical plate being connected to form an L-shaped mounting bracket; The second vertical plate is provided with multiple second fixing slots.

8. The automatic membrane pulling mechanism according to claim 7, characterized in that, The second vertical plate is provided with a second leveling part, which includes a second connecting block and a second limiting plate provided on the second connecting block. The second limiting plate is provided with a second limiting hole.

9. The automatic membrane pulling mechanism according to claim 1, wherein, The driving mechanism includes a drive motor and a control device. The drive motor is mounted on the corresponding film stretching bracket, and the output end of the drive motor is fixedly connected to one end of the rotating rod. The control device is installed on one side of the first frame and is electrically connected to the drive motor.

10. The automatic membrane pulling mechanism according to claim 1, wherein, The bottom of the first frame is provided with a first cross groove, and the bottom of the second frame is provided with a second cross groove.

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