Filter membrane laminating device

By designing the filter membrane bonding device, utilizing the tensioning plate and rollers' relaxation process and the alignment function of the positioning edge, the problems of air bubbles and wrinkles during the heating and bonding of PA filter membrane and support mesh are solved, achieving tight bonding and improving processing efficiency.

CN224145367UActive Publication Date: 2026-04-21ZHEJIANG ELITE PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ELITE PACKAGING MATERIALS CO LTD
Filing Date
2025-02-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the prior art, PA filter membranes and support mesh are prone to problems such as bubbles, wrinkles or poor adhesion when heated and bonded.

Method used

A filter membrane bonding device is used, including a base, upper and lower heating plates, a tensioning plate and rollers. The filter membrane is stretched by the cooperation of the tensioning plate and the rollers, and the positioning edge is used for quick alignment to ensure that the filter membrane is tightly bonded to the support mesh.

Benefits of technology

This effectively avoids air bubbles, wrinkles, or areas of poor adhesion during the heating and bonding process of the filter membrane, thus improving processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a filter membrane laminating device, and belongs to the technical field of filter membrane production and processing. Comprising a base, a machine box is supported on the base through a supporting frame, a lower die base is fixed to the upper end face of the base, a lower heating plate is fixed to the upper end face of the lower die base, an air cylinder is arranged in the machine box, a machine shaft of the air cylinder penetrates out of the lower end face of the machine box and is fixedly provided with an upper die base, and the middle of the upper die base protrudes. A horizontal upper heating plate is fixed on the base; the two ends of the upper heating plate are movably provided with tensioning plates, the two tensioning plates are symmetrically distributed in a splayed shape, the lower ends of the tensioning plates are rotationally provided with rollers, and the two ends of the upper die base are provided with elastic pieces for supporting the tensioning plates. According to the utility model, when the filter membrane is subjected to heating and laminating processing, the filter membrane is firstly subjected to relaxation treatment, so that when the filter membrane is subjected to heating and laminating, the problems of bubbles, wrinkles or non-tight laminating areas are not easy to appear.
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Description

Technical Field

[0001] This utility model relates to the field of filter membrane production and processing technology, and in particular to a filter membrane bonding device. Background Technology

[0002] PA filter membrane, short for polyamide filter membrane, is a commonly used microfiltration membrane material with good temperature resistance, chemical stability, and mechanical strength. PA filter membranes are usually made from 100% pure PA66 and can effectively filter all aqueous solutions and most organic solvents, and are resistant to a variety of organic and inorganic compounds such as dilute acids and dilute alkalis.

[0003] Currently, in the production of PA filter membrane products, PA filter membranes are generally bonded to other materials (such as support mesh) using a heat bonding method. This is achieved by setting up upper and lower heating plates and connecting a pressure control system to the heating plates to bond the PA filter membrane to the support mesh. However, this bonding method may result in air bubbles, wrinkles, or areas of poor bonding between the PA filter membrane and the support mesh, which requires further optimization.

[0004] Therefore, this application provides a filter membrane bonding device to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a filter membrane bonding device to solve the problems of air bubbles, wrinkles and loose bonding areas that may exist when heating and bonding PA filter membrane and support mesh in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A filter membrane bonding device includes a base, on which a housing is supported by a support frame. A lower mold base is fixed to the upper end face of the base, and a lower heating plate is fixed to the upper end face of the lower mold base. A cylinder is installed inside the housing, and the cylinder shaft extends out of the lower end face of the housing and is fixed to an upper mold base. The upper mold base has a central protrusion and a horizontal upper heating plate is fixed thereto.

[0008] Tensioning plates are movably mounted on both ends of the upper heating plate. The two tensioning plates are symmetrically distributed in a figure-eight shape. Rollers are rotatably mounted on the lower end of the tensioning plates, and elastic elements supporting the tensioning plates are provided at both ends of the upper mold base.

[0009] The present invention is further configured such that a positioning edge is fixed on one side of the top of the lower mold base of the base, and the positioning edge protrudes from one side of the lower heating plate.

[0010] The present invention is further configured such that a lower heating surface is provided at the middle of the upper end surface of the lower heating plate, and an upper heating surface is provided at the middle of the lower end surface of the upper heating plate.

[0011] The present invention is further configured such that the lower heating surface is parallel to the upper heating surface.

[0012] The present invention is further configured such that the elastic elements provided at both ends of the upper mold base include support rods, one end of the support rods being movably connected to the back of the tensioning plate, and the other end being movably connected to a slider.

[0013] The present invention is further configured such that the slider is slidably mounted on the lower end face of the upper mold base.

[0014] The present invention is further configured such that symmetrical grooves are provided at both ends of the lower end face of the upper mold base, the slider is slidably placed in the groove, and a spring connected to the slider is installed in the groove.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, thanks to the setting of the upper mold base, tension plate and rollers, during the process of heating and bonding the filter membrane and support mesh by aligning the lower heating plate with the upper mold base, the tension plate and rollers are used to first relax the filter membrane, so that the filter membrane is less likely to have air bubbles, wrinkles or areas that are not tightly bonded when it is heated and bonded.

[0017] In the above solution, thanks to the cooperation of the lower mold base, the positioning edge and the lower heating plate, the positioning edge can be used as a reference to align the filter membrane and the support mesh, forming a rapid positioning, which is conducive to improving the efficiency of the filter membrane heating and bonding process.

[0018] In summary, this device can first relax the filter membrane during the heat bonding process, so that the filter membrane is less likely to have air bubbles, wrinkles or areas of loose bonding during the heat bonding process. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the upper heating plate of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A;

[0023] Figure 4 This is a schematic diagram of the structure of the lower heating plate of this utility model.

[0024] [Figure Labels]

[0025] 1. Base; 101. Support frame; 2. Chassis; 3. Lower mold base; 301. Positioning edge; 4. Lower heating plate; 401. Lower heating surface; 5. Upper mold base; 501. Upper heating plate; 502. Upper heating surface; 6. Tensioning plate; 601. Support rod; 602. Slider; 7. Roller; 8. Slide groove; 801. Spring.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0027] The filter membrane bonding device provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] like Figure 1-4 As shown, an embodiment of this utility model provides a filter membrane bonding device, including a base 1. A housing 2 is supported on the base 1 by a support frame 101. A lower mold base 3 is fixed to the upper end surface of the base 1. A lower heating plate 4 is fixed to the upper end surface of the lower mold base 3. A positioning edge 301 is fixed to one side of the top of the lower mold base 3 of the base 1. The positioning edge 301 protrudes from one side of the lower heating plate 4. A lower heating surface 401 is provided in the middle of the upper end surface of the lower heating plate 4, so that the filter membrane and the support mesh can be quickly aligned on the lower heating plate 4 with the positioning edge 301 as the reference.

[0033] Meanwhile, a cylinder is installed inside the housing 2. The cylinder shaft extends out of the lower end face of the housing 2 and is fixed with an upper mold base 5. The upper mold base 5 has a protrusion in the middle and is fixed with a horizontal upper heating plate 501. An upper heating surface 502 is provided in the middle of the lower end face of the upper heating plate 501. The lower heating surface 401 is parallel to the upper heating surface 502. Tensioning plates 6 are movably installed at both ends of the upper heating plate 501. The two tensioning plates 6 are symmetrically distributed in a figure-eight shape. Rollers 7 are rotatably installed at the lower end of the tensioning plates 6.

[0034] The upper mold base 5 has elastic elements at both ends that support the tension plate 6. Each elastic element includes a support rod 601. One end of the support rod 601 is movably connected to the back of the tension plate 6, and the other end is movably connected to a slider 602. The slider 602 is slidably mounted on the lower end face of the upper mold base 5. The lower end face of the upper mold base 5 has symmetrical grooves 8 at both ends. The slider 602 is slidably placed in the grooves 8, and a spring 801 connected to the slider 602 is installed in the grooves 8.

[0035] The working principle provided by this utility model is that, in use, the PA filter membrane and the support mesh are stacked on the upper surface of the lower heating plate 4 and quickly aligned with the positioning edge 301 as a reference.

[0036] The cylinder inside the starter housing 2 drives the upper mold base 5 to move vertically toward the lower mold base 3. The tension plate 6 and roller 7 are used to first relax the filter membrane, so that when the filter membrane is heated and bonded, it is less likely to have problems such as air bubbles, wrinkles or areas that are not tightly bonded.

[0037] In summary, this device can first relax the filter membrane during the heat bonding process, so that the filter membrane is less likely to have air bubbles, wrinkles or areas of loose bonding during the heat bonding process.

[0038] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A filter membrane attachment device comprising a base (1) on which a housing (2) is supported by a support frame (101), characterized in that, The upper end face of the base (1) is fixed with a lower mold base (3), the upper end face of the lower mold base (3) is fixed with a lower heating plate (4), and a cylinder is provided inside the machine box (2). The cylinder shaft passes through the lower end face of the machine box (2) and is fixed with an upper mold base (5). The middle part of the upper mold base (5) protrudes and is fixed with a horizontal upper heating plate (501). Tensioning plates (6) are movably installed at both ends of the upper heating plate (501). The two tensioning plates (6) are symmetrically distributed in a figure-eight shape. Rollers (7) are rotatably installed at the lower end of the tensioning plates (6), and elastic elements supporting the tensioning plates (6) are provided at both ends of the upper mold base (5).

2. The membrane lamination device of claim 1, wherein The bottom mold base (3) of the base (1) has a positioning edge (301) fixed on one side of its top, and the positioning edge (301) protrudes from one side of the lower heating plate (4).

3. The membrane lamination device of claim 1, wherein The lower heating plate (4) has a lower heating surface (401) in the middle of its upper end surface, and the upper heating plate (501) has an upper heating surface (502) in the middle of its lower end surface.

4. The membrane lamination device of claim 3, wherein The lower heating surface (401) is parallel to the upper heating surface (502) vertically.

5. The membrane lamination device of claim 1, wherein, The elastic elements provided at both ends of the upper mold base (5) include support rods (601), one end of the support rods (601) is movably connected to the back of the tension plate (6), and the other end is movably connected to a slider (602).

6. The membrane lamination device of claim 5, wherein, The slider (602) is slidably mounted on the lower end face of the upper mold base (5).

7. The membrane lamination device of claim 6, wherein The upper mold base (5) has symmetrical grooves (8) on both ends of its lower end face. The slider (602) is slidably placed in the groove (8), and a spring (801) connected to the slider (602) is installed in the groove (8).