Film gluing machine

By introducing positioning and tension adjustment components into the film coating machine, the problem of film deviation was solved, achieving uniform coating of adhesive and stable film conveying, thus improving production efficiency and film quality.

CN224114442UActive Publication Date: 2026-04-14SHENZHEN CHUANGTENG PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional film coating machines are prone to film deviation problems when producing at high speeds or when the film thickness is uneven.

Method used

The positioning and tension adjustment components are used to stabilize the position of the film cylinder by means of limit blocks and servo motor drive. Combined with the extrusion component and sealing mechanism, it ensures that the adhesive is applied evenly.

Benefits of technology

It effectively prevents the film from deviating during the adhesive application process, achieves uniform application of adhesive, reduces film wrinkles and stretching deformation, and improves production stability and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of film processing mechanical equipment, and relates to a film gluing machine which comprises a machine box, supporting frames are symmetrically and fixedly connected to the two ends of the machine box, rotating rods are rotationally connected to the inner sides of the supporting frames, the outer sides of the two rotating rods are sleeved with a film cylinder A and a film cylinder B respectively, and film grooves are symmetrically formed in the two ends of the machine box. A pressing roller A is rotationally connected to the lower end of the middle of the machine box, a positioning assembly is arranged on the outer side of the rotating rod, a driving assembly is arranged on the inner side of the supporting frame, an extruding assembly is arranged on the inner side of the machine box, and a tensioning adjusting assembly is arranged on the inner side of the supporting frame. By adjusting the position between the limiting block B and the limiting block A, clamping and positioning of the film cylinder A and the film cylinder B are achieved, the film cylinder A or the film cylinder B is prevented from moving back and forth when films on the outer sides of the film cylinder A and the film cylinder B are extracted or wound, and therefore when the films are glued, the film cylinder A and the film cylinder B rotate more stably.
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Description

Technical Field

[0001] This utility model belongs to the technical field of film processing machinery and equipment, and relates to a film coating machine. Background Technology

[0002] Thin films are ultra-thin, flat materials typically ranging from micrometers to millimeters in thickness, manufactured through processes such as extrusion, casting, coating, or lamination. Their materials encompass plastics, metals, composite materials, and functional coatings. Thin films are lightweight, flexible, and highly malleable, finding wide application in packaging, electronics, optics, photovoltaics, medical, and industrial fields. Surface treatments such as adhesive coating, film deposition, or printing impart adhesive, barrier, conductive, or optical properties, making them indispensable basic functional materials in modern manufacturing.

[0003] Adhesive coating for films is primarily used to achieve bonding, functional coating, and surface modification. By uniformly applying adhesive, multilayer films can be firmly laminated or functional coatings can be fixed. Simultaneously, it improves the printability, wettability, and other surface properties of the film, and provides temporary or permanent adhesion for products such as protective films and tapes. Furthermore, adhesive coating enhances the mechanical strength and adaptability to special environments of the film, meeting specific process requirements such as release molding and fixing. It is a key process for improving film product performance and production efficiency.

[0004] When using the above technology, the following technical problems were found in the existing technology: Traditional film coating machines usually use fixed clamping rollers or simple tension control devices, but when the film thickness is uneven during high-speed production, the film is prone to deviation. Utility Model Content

[0005] The technical problem to be solved by this utility model is that traditional film coating machines usually use fixed clamping rollers or simple tension control devices, but when the film is produced at high speed or the film thickness is uneven, the film is prone to deviation.

[0006] The present invention discloses a film coating machine, comprising a machine box, with support frames symmetrically fixedly connected to both ends of the machine box, rotating rods rotatably connected to the inner side of the support frames, and film cylinders A and B respectively sleeved on the outer sides of the two rotating rods. Film grooves are symmetrically opened at both ends of the machine box, and pressure roller A is rotatably connected to the lower end of the middle of the machine box. A positioning component is provided on the outer side of the rotating rods, a driving component is provided on the inner side of the support frames, an extrusion component is provided on the inner side of the machine box, and a tension adjustment component is provided on the inner side of the support frames.

[0007] The positioning component includes a limiting block A. The limiting block A is fixedly connected to the outer side of the rotating rod. A limiting block B is sleeved on the outer side of the rotating rod and at the end away from the limiting block A. A threaded rod A is fixedly connected to the middle of the limiting block B. A threaded rod groove is opened on the inner side of the rotating rod. The threaded rod A is located inside the threaded rod groove and is threadedly connected to the threaded rod groove.

[0008] The drive assembly includes a servo motor A. The servo motor A is fixedly connected to the inner side of the support frame corresponding to the film cylinder B. The output end of the servo motor A is fixedly connected to an output gear A. The end of the rotating rod located inside the support frame is fixedly connected to a driven gear A. The driven gear A is meshed with the output gear A.

[0009] The extrusion assembly includes a placement slot A, and the inner side of the housing is symmetrically provided with placement slots A and B. An extrusion plate A is slidably inserted between the two placement slots A and the two placement slots B are slidably inserted between the two placement slots B. The end of the housing is provided with a left and right sealing mechanism.

[0010] The sealing mechanism includes a sealing threaded groove, and the end of the housing is provided with a sealing threaded groove, and a threaded block is threadedly connected to the inner side of the sealing threaded groove.

[0011] Pressure roller B is symmetrically and rotatably connected to the inner side of the housing and at both ends of pressure roller A.

[0012] The tension adjustment assembly includes a serrated groove. A serrated groove is provided on the inner side of the lower end of the support frame. A serrated block is slidably connected to the inner side of the serrated groove. The serrated block is slidably connected to the serrated groove. A tensioning rod is fixedly connected to the end of the serrated block away from the support frame. A threaded rod B is rotatably connected to the inner side of the support frame. A drive mechanism is provided at the bottom end of the support frame.

[0013] The drive mechanism includes a servo motor B, which is fixedly connected to the inner side of the lower end of the support frame. A drive gear B is fixedly connected to the output end of the servo motor B, and a driven gear B is fixedly connected to the outer side of the bottom end of the threaded rod B. The driven gear B meshes with the drive gear B.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the position between the limiting block B and the limiting block A, the clamping and positioning of the film tube A and the film tube B can be achieved, thereby preventing the film tube A or the film tube B from moving back and forth when the film on the outside of the film tube A and the film tube B is pulled out or wrapped, so that the film tube A and the film tube B rotate more stably when the film is glued.

[0015] As the film passes through the gap between extrusion plates A and B, excess adhesive is squeezed out by extrusion plates A and B, thus allowing the adhesive to be applied more evenly to the outside of the film.

[0016] When the threaded rod B rotates, the sawtooth block connected by the outer thread drives the tensioning rod to move, and the tensioning rod realizes dynamic tension control during the film transfer process, thereby reducing film wrinkles or stretching deformation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the casing of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the drive component of this utility model.

[0021] Figure 4 This is a structural schematic diagram of the positioning component of this utility model.

[0022] Figure 5 This is a schematic diagram of the drive mechanism of this utility model.

[0023] Figure 6 This is a schematic diagram of the sawtooth groove structure of this utility model.

[0024] Figure 7 This is a schematic diagram of the extrusion assembly of this utility model.

[0025] In the diagram: 101, housing; 102, support frame; 103, rotating rod; 104, film tube A; 105, film trough; 106, pressure roller A; 107, film tube B; 201, limiting block A; 202, limiting block B; 203, threaded rod A; 204, threaded rod groove; 301, servo motor A; 302, output gear A; 303, driven gear A; 401, placement groove A; 402, placement groove B; 403, extrusion plate A; 404, extrusion plate B; 501, threaded block; 502, sealing threaded groove; 601, pressure roller B; 701, serrated groove; 702, serrated block; 703, tensioning rod; 704, threaded rod B; 801, servo motor B; 802, drive gear B; 803, driven gear B. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Example 1

[0031] like Figure 1 - Figure 7 As shown, a film coating machine includes a housing 101. Support frames 102 are symmetrically fixedly connected to both ends of the housing 101. Rotating rods 103 are rotatably connected to the inner side of the support frames 102. Film cylinders A104 and B107 are respectively sleeved on the outer sides of the two rotating rods 103. Film grooves 105 are symmetrically opened at both ends of the housing 101. A pressure roller A106 is rotatably connected to the lower end of the middle part of the housing 101. A positioning component is provided on the outer side of the rotating rods 103. A driving component is provided on the inner side of the support frames 102. An extrusion component is provided on the inner side of the housing 101. A tension adjustment component is provided on the inner side of the support frames 102.

[0032] The positioning component includes a limiting block A201. The limiting block A201 is fixedly connected to the outer side of the rotating rod 103. A limiting block B202 is sleeved on the outer side of the rotating rod 103 and at the end away from the limiting block A201. A threaded rod A203 is fixedly connected to the middle of the limiting block B202. A threaded rod groove 204 is opened on the inner side of the rotating rod 103. The threaded rod A203 is located inside the threaded rod groove 204 and is threadedly connected to the threaded rod groove 204.

[0033] The drive assembly includes a servo motor A301. The servo motor A301 is fixedly connected to the inner side of the support frame 102 corresponding to the end of the diaphragm cylinder B107. The output end of the servo motor A301 is fixedly connected to an output gear A302. The end of the rotating rod 103 located inside the support frame 102 is fixedly connected to a driven gear A303. The driven gear A303 meshes with the output gear A302.

[0034] The inner side of the housing 101 and the two ends of the pressure roller A106 are symmetrically rotatably connected to the pressure roller B601, so that the film can be immersed in the adhesive liquid for a longer time.

[0035] During operation, film tubes A104 and B107 are respectively fitted onto the outside of the two rotating rods 103. Then, one end of the film on film tube A104 is passed through the two film grooves 105, while the film is also located at the lower end of pressure roller A106 and the two pressure rollers B601. Then, the film is wound around the outside of film tube B107, and then the adhesive is poured into the inside of the machine box 101.

[0036] Then rotate the limiting block B202 so that the threaded rod A203 is threaded into the inner side of the threaded rod groove 204, thereby adjusting the position between the limiting block B202 and the limiting block A201, thereby achieving the clamping and positioning of the film tube A104 and the film tube B107, thus preventing the film tube A104 or the film tube B107 from moving back and forth when the film on the outside of the film tube A104 or the film tube B107 is pulled out or wrapped, so that the film tube A104 and the film tube B107 rotate more stably when the film is glued;

[0037] Then, the servo motor A301 is started, so that the output end of the servo motor A301 meshes with the driven gear A303 through the output gear A302, thereby driving the rotating rod 103 to rotate. When the rotating rod 103 rotates, it drives the outer film tube B107 to rotate, thereby winding the film through the film tube B107, and thus achieving the application of adhesive to the film.

[0038] Example 2

[0039] like Figure 1 - Figure 7 As shown, the extrusion assembly includes a placement slot A401. The inner side of the housing 101 is symmetrically provided with placement slots A401 and B402. An extrusion plate A403 is slidably inserted between the two placement slots A401 and an extrusion plate B404 is slidably inserted between the two placement slots B402. The ends of the housing 101 are provided with left and right sealing mechanisms.

[0040] The sealing mechanism includes a sealing threaded groove 502. The end of the housing 101 is provided with the sealing threaded groove 502, and the inner side of the sealing threaded groove 502 is threadedly connected with a threaded block 501.

[0041] During operation, the extrusion plate A403 is installed between the two placement slots A401, and the extrusion plate B404 is installed between the two placement slots B402. This allows the film to pass through the gap between the extrusion plates A403 and B404, where excess adhesive is squeezed out by the extrusion plates A403 and B404, resulting in a more even application of adhesive to the outer side of the film. Then, the threaded block 501 is placed inside the threaded block 501, and the threaded block 501 is rotated to seal the placement slots A401 and B402, while preventing the extrusion plates A403 and B404 from shaking.

[0042] Example 3

[0043] like Figure 1 - Figure 6 As shown, the tension adjustment assembly includes a serrated groove 701. A serrated groove 701 is provided on the inner side of the lower end of the support frame 102. A serrated block 702 is slidably connected to the inner side of the serrated groove 701. The serrated block 702 is slidably connected to the serrated groove 701. A tensioning rod 703 is fixedly connected to the end of the serrated block 702 away from the support frame 102. A threaded rod B704 is rotatably connected to the inner side of the support frame 102. A driving mechanism is provided at the bottom end of the support frame 102.

[0044] The drive mechanism includes a servo motor B801. The servo motor B801 is fixedly connected to the inner side of the lower end of the support frame 102. The output end of the servo motor B801 is fixedly connected to a drive gear B802. The outer side of the bottom end of the threaded rod B704 is fixedly connected to a driven gear B803. The driven gear B803 is meshed with the drive gear B802.

[0045] During operation, the servo motor B801 is started, and the output end of the servo motor B801 drives the drive gear B802 to rotate. The drive gear B802 meshes with the driven gear B803 to drive the threaded rod B704 to rotate. When the threaded rod B704 rotates, the sawtooth block 702 connected by the outer thread drives the tension rod 703 to move. The tension rod 703 realizes dynamic tension control during the film transfer process, thereby reducing film wrinkles or stretching deformation.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A film gluing machine characterized by: Including machine box (101), both ends of machine box (101) are fixedly connected with support frame (102) in symmetry, the inner side of support frame (102) is rotatably connected with rotating rod (103), the outer side of two rotating rods (103) is respectively sleeved with film cylinder A (104) and film cylinder B (107), both ends of machine box (101) are symmetrically provided with film groove (105), the lower end of the middle part of machine box (101) is rotatably connected with compression roller A (106), the outer side of rotating rod (103) is provided with positioning assembly, the inner side of support frame (102) is provided with driving assembly, the inner side of machine box (101) is provided with extrusion assembly, and the inner side of support frame (102) is provided with tensioning adjusting assembly.

2. The film gluing machine according to claim 1, characterized in that: The positioning assembly includes limiting block A (201), the outer side of rotating rod (103) is fixedly connected with limiting block A (201), the outer side of rotating rod (103) and one end away from limiting block A (201) are sleeved with limiting block B (202), the middle part of limiting block B (202) is fixedly connected with threaded rod A (203), the inner side of rotating rod (103) is provided with threaded rod groove (204), and the threaded rod A (203) is located on the inner side of threaded rod groove (204) and is threadedly connected with threaded rod groove (204).

3. The film gluing machine according to claim 1, characterized in that: The driving assembly includes servo motor A (301), the inner side of one end of support frame (102) corresponding to film cylinder B (107) is fixedly connected with servo motor A (301), the output end of servo motor A (301) is fixedly connected with output gear A (302), one end of rotating rod (103) located on the inner side of support frame (102) is fixedly connected with driven gear A (303), and driven gear A (303) is meshedly connected with output gear A (302).

4. The film gluing machine of claim 1, wherein: The extrusion assembly includes placing groove A (401), the inner side of machine box (101) is symmetrically provided with placing groove A (401), the inner side of machine box (101) is symmetrically provided with placing groove B (402), extrusion plate A (403) is slidably inserted between two placing grooves A (401), extrusion plate B (404) is slidably inserted between two placing grooves B (402), and the end of machine box (101) is provided with left and right sealing mechanisms.

5. A film gluing machine according to claim 4, characterized in that: The sealing mechanism includes sealing screw groove (502), the end of machine box (101) is provided with sealing screw groove (502), and the inner side of sealing screw groove (502) is threadedly connected with threaded block (501).

6. The film gluing machine of claim 1, wherein: The inner side of machine box (101) and both ends of compression roller A (106) are rotatably connected with compression roller B (601).

7. The film gluing machine of claim 1, wherein: The tension adjusting assembly comprises a sawtooth groove (701), the inner side of the lower end of the support frame (102) is provided with the sawtooth groove (701), the inner side of the sawtooth groove (701) is slidably connected with a sawtooth block (702), the sawtooth block (702) is slidably connected with the sawtooth groove (701), the end of the sawtooth block (702) away from the support frame (102) is fixedly connected with a tension rod (703), the inner side of the support frame (102) is rotatably connected with a threaded rod B (704), and the bottom end of the support frame (102) is provided with a driving mechanism.

8. The film gluing machine according to claim 7, characterized in that: The driving mechanism comprises a servo motor B (801), the inner side of the lower end of the support frame (102) is fixedly connected with the servo motor B (801), the output end of the servo motor B (801) is fixedly connected with a driving gear B (802), the outer side of the bottom end of the threaded rod B (704) is fixedly connected with a driven gear B (803), and the driven gear B (803) is meshedly connected with the driving gear B (802).