Foam strip film covering device

By employing positioning technology with adsorption plates and pressure plates, combined with vacuum adsorption and precise cutting by a cutter, the problem of protective film misalignment is solved, improving the cutting and coating accuracy of foam strips and extending their service life.

CN224145353UActive Publication Date: 2026-04-21DONGGUAN JINGONG PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINGONG PRECISION MASCH CO LTD
Filing Date
2025-03-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional foam strip coating processes struggle to ensure the stability and accuracy of the protective film during transport and positioning, leading to positional deviations that affect cutting precision, foam strip performance, and lifespan.

Method used

An adsorption plate and a pressure plate are used to position the protective film. Vacuum adsorption and traction coating components ensure that the protective film is tightly attached to the top surface of the adsorption plate. Combined with the precise cutting of the cutter, the coating accuracy and cutting accuracy are improved.

Benefits of technology

This ensures that the protective film does not shift, improving cutting and coating accuracy, and enhancing the performance and lifespan of the foam strip.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224145353U_ABST
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Abstract

The utility model relates to a foam strip film covering device which comprises a workbench. The film feeding assembly is mounted on one side of the workbench; the film feeding assembly comprises a film feeding support, a power roller and a pressing roller. The film separating assembly is mounted at the outlet end of the film feeding assembly; the film separating assembly comprises an adsorption plate, a transverse moving driving part, a cutter and a film pressing plate; the traction film covering assembly is mounted on the workbench; the traction film covering assembly comprises a film drawing linear module, a lifting air cylinder, a finger clamping air cylinder and a clamping plate. The two clamping plates are correspondingly arranged at the end, away from the film feeding support, of the adsorption plate. The foam strip film covering device is simple in structure and convenient to use, the protective film is positioned through the adsorption plate and the film pressing plate, so that the protective film is tightly attached to the top face of the adsorption plate, it is guaranteed that the position of the protective film cannot deviate, the cutting precision and the film covering precision are improved, and then the performance and the service life of foam strips are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of foam strip coating technology, and in particular to a foam strip coating device. Background Technology

[0002] Foam itself has a porous structure, which makes it easy to absorb moisture or humidity, leading to a decline in performance (such as reduced elasticity and mold growth). Therefore, it is necessary to coat the surface of the foam to form a dense barrier, preventing water vapor penetration and maintaining the cushioning performance and long-term stability of the foam.

[0003] Traditional foam strip lamination processes mostly rely on manual operation or simple machinery, making it difficult to ensure the stability and accuracy of the protective film during transmission and positioning, thus causing positional deviations. This deviation is particularly noticeable during the cutting process, resulting in wavy, burr-like, or irregular cut edges on the protective film, which not only affects the appearance of the foam strip but also weakens its performance and service life. Utility Model Content

[0004] Based on this, the present invention provides a foam strip coating device with a simple structure and convenient use. The adsorption plate and the pressure plate position the protective film, so that the protective film is tightly attached to the top surface of the adsorption plate, ensuring that the position of the protective film will not shift, improving the cutting accuracy and coating accuracy, thereby ensuring the performance and service life of the foam strip.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted:

[0006] A foam strip coating device, comprising:

[0007] Workbench;

[0008] A film feeding assembly is installed on one side of the worktable; the film feeding assembly includes a film feeding support installed on one side of the worktable, a power roller installed inside the film feeding support, and a pressure roller flexibly installed above the power roller.

[0009] A film separating assembly is installed at the outlet end of the film feeding assembly; the film separating assembly includes an adsorption plate installed at the outlet end of the film feeding support, a transverse drive installed above the end of the adsorption plate near the film feeding support, a cutter connected to the transverse drive, and a pressure plate that can be lifted and lowered above the end of the adsorption plate away from the film feeding support; and

[0010] The traction film coating assembly is installed on the workbench; the traction film coating assembly includes a film pulling linear module located on one side of the film feeding support outlet end, a lifting cylinder connected to the film pulling linear module, a finger clamping cylinder installed at the end of the lifting cylinder, and clamping plates connected to the fingers of the finger clamping cylinder respectively; the two clamping plates are respectively set at the end of the adsorption plate away from the film feeding support.

[0011] The above-mentioned foam strip coating device has a simple structure and is easy to use. The adsorption plate and the pressure plate position the protective film, so that the protective film is tightly attached to the top surface of the adsorption plate, ensuring that the position of the protective film will not shift, improving the cutting accuracy and coating accuracy, thereby ensuring the performance and service life of the foam strip.

[0012] In one embodiment, the top surface of the adsorption plate is provided with a blade groove for accommodating the cutting edge of a cutter.

[0013] In one embodiment, the top surface of the adsorption plate is used to abut against the protective film, and multiple air suction holes are provided on the top surface of the adsorption plate corresponding to the opposite sides of the blade groove. The adsorption plate is connected to a vacuum generator.

[0014] In one embodiment, the cutter is a double-edged cutter.

[0015] In one embodiment, the membrane separation assembly further includes two guide plates mounted below the end of the adsorption plate away from the membrane delivery support.

[0016] In one embodiment, support plates are respectively connected to opposite sides of the adsorption plate away from the film feeding support; a lifting cylinder is connected to the top of each support plate, and two lifting cylinders are used to connect opposite ends of the pressing plate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a foam strip coating device according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 An exploded view of the foam strip coating device shown;

[0019] Figure 3 for Figure 1 An enlarged view of circle A shown;

[0020] Figure 4 for Figure 2 A schematic diagram of the assembly of the film feeding assembly and the film separating assembly in the foam strip coating device shown;

[0021] Figure 5 for Figure 4 An exploded view of the film feeding assembly and film separating assembly in the foam strip coating device shown;

[0022] Figure 6 for Figure 4 Cross-sectional view of the film feeding assembly and film separating assembly in the foam strip coating device shown.

[0023] Attached image annotations:

[0024] 10-Workbench;

[0025] 20-Film feeding assembly, 21-Film feeding support, 22-Power roller, 23-Pressure roller, 24-Power motor, 25-Protective film;

[0026] 30-Membrane separation assembly, 31-Adsorption plate, 310-Knife groove, 32-Transverse drive component, 33-Cutter, 34-Filling plate, 35-Guide plate, 36-Support plate, 37-Lifting cylinder, 38-Support rod;

[0027] 40-Traction film covering assembly, 41-Film pulling linear module, 42-Lifting cylinder, 43-Finger clamping cylinder, 44-Clamping plate;

[0028] 50 - Foam strip, 51 - Foam strip. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] Please see Figures 1 to 6 The foam strip coating device according to one embodiment of the present invention includes a workbench 10, a film feeding assembly 20 installed on one side of the workbench 10, a film separating assembly 30 installed at the outlet end of the film feeding assembly 20, and a traction coating assembly 40 installed on the workbench 10.

[0033] The top surface of the workbench 10 is used to support the foam strip 50. The top surface of the foam strip 50 has multiple foam strips 51 arranged in an array. The top surface of the foam strips 51 is adhesive, which facilitates film coating.

[0034] The film feeding assembly 20 includes a film feeding support 21 mounted on one side of the worktable 10, a power roller 22 mounted inside the film feeding support 21, a pressure roller 23 elastically mounted above the power roller 22, and a power motor 24 mounted on one side of the film feeding support 21; the power motor 24 drives the power roller 22 to rotate via a synchronous belt (not shown). The power roller 22 and the pressure roller 23 are used to transfer the protective film 25.

[0035] The film-separating assembly 30 includes an adsorption plate 31 installed at the outlet end of the film feeding support 21, a transverse drive 32 installed above the end of the adsorption plate 31 near the film feeding support 21, a cutter 33 connected to the transverse drive 32, a pressing plate 34 that can be raised and lowered and installed above the end of the adsorption plate 31 away from the film feeding support 21, and two guide plates 35 installed below the end of the adsorption plate 31 away from the film feeding support 21.

[0036] Specifically, support plates 36 are connected to opposite sides of the end of the adsorption plate 31 away from the film feeding support 21. A lifting cylinder 37 is connected to the top of each support plate 36. Two lifting cylinders 37 connect opposite ends of the pressing plate 34 to drive the pressing plate 34 to move up and down, thus pressing the protective film 25 tightly. A support rod 38 is connected between the bottom ends of the two support plates 36, and two guide plates 35 are movably mounted on the support rod 38.

[0037] In this embodiment, the top surface of the adsorption plate 31 is provided with a blade groove 310, which is used to accommodate the cutting edge of the cutter 33. Further, the top surface of the adsorption plate 31 is used to abut against the protective film 25, and multiple suction holes are provided on the top surface of the adsorption plate 31 on opposite sides corresponding to the blade groove 310. The adsorption plate 31 is connected to a vacuum generator.

[0038] In this embodiment, the transverse drive 32 is a slide cylinder or a linear module that can drive the cutter 33 to move back and forth.

[0039] In this embodiment, the cutter 33 is a double-edged cutter; the transverse drive 32 is used to drive the cutter 33 to reciprocate.

[0040] The traction film coating assembly 40 includes a film pulling linear module 41 located on one side of the outlet end of the film feeding support 21, a lifting cylinder 42 connected to the film pulling linear module 41, a finger clamping cylinder 43 installed at the end of the lifting cylinder 42, and clamping plates 44 respectively connected to the fingers of the finger clamping cylinder 43; the two clamping plates 44 are respectively arranged at the end of the adsorption plate 31 away from the film feeding support 21.

[0041] In practical use, the protective film 25 is conveyed by the power roller 22 and the pressure roller 23 and passes through the film-separating assembly 30, that is, the protective film 25 crosses the pressure plate 34. Then, the traction film-coating assembly 40 clamps the end of the protective film 25 and stretches it to a certain length (e.g., Figure 1 and Figure 2 As shown in the figure, the length of the stretch is slightly longer than the length of the foam strip 51 so that the foam strip 51 can be completely covered during subsequent lamination.

[0042] Next, the pressure plate 34 falls and presses the protective film 25. At this time, the vacuum generator draws a vacuum, and the suction hole sucks the protective film 25 tightly, so that the protective film 25 is closely attached to the top surface of the adsorption plate 31, ensuring that the position of the protective film 25 will not shift.

[0043] Next, the moving drive 32 drives the cutter 33 to move along the knife groove 310 to cut the protective film 25. Then, the pressure plate 34 rises and the suction plate 31 breaks the vacuum to release the protective film 25.

[0044] Finally, the protective film 25 cut out is clamped by the traction film-coating assembly 40 and moved a certain distance, so that the protective film 25 falls under its own weight and covers the foam strip 51. At this time, the two guide plates 35 are used to limit the position of the protective film 25 to ensure the film-coating accuracy.

[0045] The above-mentioned foam strip coating device has a simple structure and is easy to use. The adsorption plate 31 and the pressure plate 34 position the protective film 25 so that the protective film 25 is tightly attached to the top surface of the adsorption plate 31, ensuring that the position of the protective film 25 will not shift, improving the cutting accuracy and coating accuracy, thereby ensuring the performance and service life of the foam strip.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A foam tape laminating apparatus characterized by comprising: include: Workbench; A film feeding assembly is installed on one side of the worktable; the film feeding assembly includes a film feeding support installed on one side of the worktable, a power roller installed inside the film feeding support, and a pressure roller flexibly installed above the power roller. A film separating assembly is installed at the outlet end of the film feeding assembly; the film separating assembly includes an adsorption plate installed at the outlet end of the film feeding support, a transverse drive installed above the end of the adsorption plate near the film feeding support, a cutter connected to the transverse drive, and a pressure plate that can be lifted and lowered above the end of the adsorption plate away from the film feeding support; and The traction film coating assembly is installed on the workbench; the traction film coating assembly includes a film pulling linear module located on one side of the film feeding support outlet end, a lifting cylinder connected to the film pulling linear module, a finger clamping cylinder installed at the end of the lifting cylinder, and clamping plates connected to the fingers of the finger clamping cylinder respectively; the two clamping plates are respectively set at the end of the adsorption plate away from the film feeding support.

2. The foam strip lamination device of claim 1, wherein The top surface of the adsorption plate is provided with a knife-holding groove, which is used to accommodate the cutting edge of the cutter.

3. The foam strip lamination device of claim 2, wherein, The top surface of the adsorption plate is used to abut the protective film. Multiple air suction holes are provided on the top surface of the adsorption plate corresponding to the opposite sides of the blade groove. The adsorption plate is connected to a vacuum generator.

4. The foam strip lamination apparatus of claim 1, wherein, The cutting knife is a double-edged blade.

5. The foam strip lamination apparatus of claim 1, wherein, The membrane separation assembly also includes two guide plates installed below the end of the adsorption plate away from the membrane delivery support.

6. The foam strip lamination device of claim 1, wherein, Support plates are connected to opposite sides of the adsorption plate at the end away from the film feeding support; each support plate is connected to a lifting cylinder at its top, and the two lifting cylinders are used to connect the opposite ends of the pressing plate.