Efficient coating device for PTFE waterproof and moisture permeable film production
By designing a high-efficiency coating device including base, transfer, tape and drying device, the problem of difficulty in automatic coating of PTFE waterproof and moisture-permeable film during coating and drying, and the membrane is prone to wrinkles and swaying, and the film is automatically coated and stable drying, improving the quality of the product and production convenience.
Patent Information
- Application Number
- CN202421875857.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing PTFE waterproof and moisture-permeable film production equipment has problems such as difficulty in automatic coating during coating, easy to produce wrinkles in the film, and poor quality during drying.
An efficient coating device including a base, a transfer, a stretch and a drying device is designed. The stability and quality of the membrane during coating and drying is ensured through a gravity automatic coating design, sleeve support springs keeping the membrane flat, and a hot air drying system combining a drying cover and an electric heating tube.
Automatic coating of the film is realized to prevent wrinkles, keep the film flat, avoid local overheating, improve the waterproof performance and durability of the product, ensure the convenience of the production process and simplify the structure.
Smart Images
Figure CN223042983U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of PTFE waterproof and moisture-permeable film production, and particularly relates to an efficient coating device for PTFE waterproof and moisture-permeable film production. Background Technique
[0002] The PTFE waterproof and moisture-permeable film is a high-performance composite material that combines the excellent waterproof performance of polytetrafluoroethylene (PTFE) and good moisture permeability. This film is usually used in fields such as outdoor clothing, medical supplies, building materials, etc., because it can allow the moisture generated by the human body to pass through while maintaining waterproofness, thereby providing a comfortable wearing experience.
[0003] In order to further improve the waterproof performance and durability of the film, other materials such as polyurethane (PU) or other composite materials are usually coated on one or both sides of the PTFE film.
[0004] When the existing device is in processing, a power source is required to drive the coating to be coated on the PTFE waterproof and moisture-permeable film, and it cannot automatically coat the paint by gravity. The device structure is relatively complex. At the same time, wrinkles are likely to occur on the PTFE waterproof and moisture-permeable film, affecting the coating effect. During the drying process, the PTFE waterproof and moisture-permeable film is prone to swing up and down under force, and there is a lack of a device to keep the PTFE waterproof and moisture-permeable film straight, and the product quality is also easily affected. Content of the Utility Model
[0005] The purpose of the utility model is to provide an efficient coating device for PTFE waterproof and moisture-permeable film production to solve the problems existing in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] An efficient coating device for PTFE waterproof and moisture-permeable film production includes a base device. Above the base device, there is a transfer device. At the bottom of the transfer device, there is a drying device. In the middle of the base device, there is a film tensioning device. On one side of the transfer device, there is a coating device; the film tensioning device includes two symmetrical sleeves. A sliding rod is slidably inserted at the top of the sleeve. A spring is fixedly arranged at the bottom end of the sliding rod. A film tensioning roller is fixedly arranged at the top end of the sliding rod; the coating device includes a storage box. A feeding pipe is arranged at the bottom of the storage box. A coating brush is arranged at the bottom of the feeding pipe.
[0008] Furthermore: The base device includes a connecting frame. A material feeding roller is rotatably arranged at the top of the connecting frame. Two material transfer rollers are symmetrically and rotatably arranged up and down in front of the connecting frame. A gear is arranged at one end of the material transfer roller. A first motor is installed on one side of the gear.
[0009] Further: The transfer device includes a top bracket, a lead screw is rotatably arranged at the bottom of the top bracket, a smooth rod is arranged above the lead screw, and a second motor is installed at one end of the lead screw.
[0010] Further: The drying device includes a drying hood, a fan is installed at the bottom of the drying hood, and a heating tube is arranged below the fan.
[0011] Further: The lead screw is connected to the top bracket by bearings, and the lead screw is connected to the second motor by a flat key.
[0012] Further: The drying hood is cylindrical, and the fan is connected to the drying hood by bolts.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. The storage box evenly inputs the internal coating raw materials into the feeding pipe. The coating raw materials in the feeding pipe evenly penetrate into the coating brush by gravity. During the contact between the bottom of the coating brush and the PTFE waterproof and moisture-permeable membrane, the raw materials are naturally smeared on the membrane. At the same time, the raw materials in the feeding pipe continue to be supplemented, realizing automatic smearing. Through the design of smearing by the penetration of the coating into the coating brush, it can automatically coat the paint by gravity, improving the convenience of device processing and simplifying the structure.
[0015] 2. During the blowing process, the PTFE waterproof and moisture-permeable membrane sways up and down under force. The sleeve support spring pushes the sliding rod upward through elastic force, driving the tension roller to exert upward force, so that the PTFE waterproof and moisture-permeable membrane always remains flat, improving the wind receiving effect, and at the same time preventing the PTFE waterproof and moisture-permeable membrane from wrinkling due to gravity, affecting the coating effect.
[0016] 3. The drying hood supports the fan to blow downward. At the same time, the heating tube releases heat, heating the air flow to make it hot air. The hot air dries the coating on the PTFE waterproof and moisture-permeable membrane. The top bracket supports the second motor to drive the lead screw to rotate, driving the drying hood to reciprocate horizontally along the smooth rod, changing the wind receiving part of the PTFE waterproof and moisture-permeable membrane, preventing local overheating from causing product coking and affecting the production quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 is a schematic structural diagram of a high-efficiency coating device for producing PTFE waterproof and moisture-permeable membranes according to the present utility model;
[0019] Figure 2 It is a schematic structural diagram of the base device of an efficient coating device for producing PTFE waterproof and moisture-permeable membranes according to the present utility model;
[0020] Figure 3 It is a schematic structural diagram of the material tensioning device of an efficient coating device for producing PTFE waterproof and moisture-permeable membranes according to the present utility model;
[0021] Figure 4 It is a schematic structural diagram of the transfer device of an efficient coating device for producing PTFE waterproof and moisture-permeable membranes according to the present utility model
[0022] Figure 5 It is a partial cross-sectional view of the drying device of an efficient coating device for producing PTFE waterproof and moisture-permeable membranes according to the present utility model
[0023] Figure 6 It is a partial cross-sectional view of the coating device of an efficient coating device for producing PTFE waterproof and moisture-permeable membranes according to the present utility model.
[0024] In the attached drawings: 1. Base device; 101. Connecting frame; 102. Unwinding roller; 103. Material transfer roller; 104. Gear; 105. First motor; 2. Material tensioning device; 201. Sleeve; 202. Slide bar; 203. Spring; 204. Tensioning roller; 3. Transfer device; 301. Top support; 302. Lead screw; 303. Smooth rod; 304. Second motor; 4. Drying device; 401. Drying hood; 402. Fan; 403. Electric heating tube; 5. Coating device; 501. Storage box; 502. Feeding pipe; 503. Coating brush. Detailed implementation manners
[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0028] Please refer to Figures 1 - 6 , a high-efficiency coating device for the production of PTFE waterproof and moisture-permeable membranes. Above the base device 1, there is a transfer device 3. At the bottom of the transfer device 3, there is a drying device 4. In the middle of the base device 1, there is a material tensioning device 2. On one side of the transfer device 3, there is a coating device 5.
[0029] In this embodiment: The base device 1 includes a connecting frame 101. At the top of the connecting frame 101, a feeding roller 102 is rotatably arranged. On the front of the connecting frame 101, two material transfer rollers 103 are symmetrically and rotatably arranged up and down. At one end of the material transfer roller 103, there is a gear 104. On one side of the gear 104, a first motor 105 is installed. The PTFE waterproof and moisture-permeable membrane roll is inserted on the feeding roller 102. The end of the PTFE waterproof and moisture-permeable membrane bypasses the tensioning roller 204 and finally passes through between the two material transfer rollers 103. The connecting frame 101 supports the first motor 105 to drive the bottom material transfer roller 103 to rotate. The bottom material transfer roller 103 drives the gear 104 on the same side to rotate, meshing with the top gear 104 to rotate in the opposite direction. The top gear 104 drives the adjacent material transfer roller 103 to rotate, so that the two material transfer rollers 103 rotate in opposite directions, clamping and driving the PTFE waterproof and moisture-permeable membrane to move forward, and at the same time pulling the feeding roller 102 to rotate and feed.
[0030] In this embodiment: The material tensioning device 2 includes two symmetrical sleeves 201. A slide bar 202 is slidably inserted at the top of the sleeve 201. A spring 203 is fixedly arranged at the bottom end of the slide bar 202. A material tensioning roller 204 is fixedly arranged at the top end of the slide bar 202. During the blowing process, the PTFE waterproof and moisture-permeable membrane sways up and down under force. The sleeve 201 supports the spring 203 to push the slide bar 202 upward through elastic force, driving the material tensioning roller 204 to exert an upward force, so that the PTFE waterproof and moisture-permeable membrane always remains flat, improving the wind receiving effect, and at the same time preventing the PTFE waterproof and moisture-permeable membrane from generating wrinkles due to gravity, affecting the coating effect;
[0031] In this embodiment: The transfer device 3 includes a top bracket 301. A lead screw 302 is rotatably arranged at the bottom of the top bracket 301. A smooth rod 303 is arranged above the lead screw 302. A second motor 304 is installed at one end of the lead screw 302. The lead screw 302 is connected to the top bracket 301 by bearings, and the lead screw 302 is connected to the second motor 304 by a flat key. The top bracket 301 supports the second motor 304 to drive the lead screw 302 to rotate, driving the drying hood 401 to reciprocate horizontally along the smooth rod 303, changing the wind receiving part of the PTFE waterproof and moisture-permeable membrane, preventing local overheating from causing product coking and affecting the production quality;
[0032] In this embodiment: The drying device 4 includes a drying hood 401. A fan 402 is installed at the bottom of the drying hood 401. An electric heating tube 403 is arranged below the fan 402. The drying hood 401 is cylindrical. The fan 402 is connected to the drying hood 401 by bolts. The drying hood 401 supports the fan 402 to blow downward. At the same time, the electric heating tube 403 emits heat to heat the air flow to make it hot air, and the hot air dries the coating on the PTFE waterproof and moisture-permeable membrane;
[0033] In this embodiment: The coating device 5 includes a material storage box 501. A material discharge pipe 502 is arranged at the bottom of the material storage box 501. A coating brush 503 is arranged at the bottom of the material discharge pipe 502. The material storage box 501 evenly inputs the internal coating raw materials into the material discharge pipe 502. The coating raw materials in the material discharge pipe 502 evenly penetrate into the coating brush 503 by gravity. When the bottom of the coating brush 503 contacts the PTFE waterproof and moisture-permeable membrane, the raw materials are naturally smeared on the membrane. At the same time, the raw materials in the material discharge pipe 502 continue to be supplemented to achieve automatic smearing. Through the design of smearing by the penetration of the coating into the coating brush 503, automatic coating can be achieved by gravity, improving the convenience of device processing and simplifying the structure.
[0034] Working principle: Insert the PTFE waterproof and moisture-permeable film roll on the unwinding roller 102. The end of the PTFE waterproof and moisture-permeable film bypasses the tensioning roller 204 and finally passes through between the two transfer rollers 103. The connecting frame 101 supports the first motor 105 to drive the bottom transfer roller 103 to rotate. The bottom transfer roller 103 drives the same-side gear 104 to rotate, meshing with the top gear 104 to rotate in the opposite direction. The top gear 104 drives the adjacent transfer roller 103 to rotate, causing the two transfer rollers 103 to rotate in the opposite direction, clamping and driving the PTFE waterproof and moisture-permeable film to move forward. At the same time, it pulls the unwinding roller 102 to rotate for feeding. The storage box 501 evenly inputs the internal coating raw materials into the feeding pipe 502. The coating raw materials in the feeding pipe 502 evenly penetrate into the coating brush 503 by gravity. During the contact between the bottom of the coating brush 503 and the PTFE waterproof and moisture-permeable film, the raw materials are naturally applied to the film. At the same time, the raw materials in the feeding pipe 502 continue to be supplemented to achieve automatic coating. Through the design of coating penetration into the coating brush 503 for coating, it can automatically coat by gravity, improve the convenience of device processing, and simplify the structure. The drying hood 401 supports the fan 402 to blow downward. At the same time, the electric heating tube 403 emits heat to heat the air flow to make it hot air. The hot air dries the coating on the PTFE waterproof and moisture-permeable film. The top bracket 301 supports the second motor 304 to drive the lead screw 302 to rotate, driving the drying hood 401 to reciprocate horizontally along the optical bar 303, changing the wind-receiving part of the PTFE waterproof and moisture-permeable film to prevent local overheating from causing product coking and affecting the production quality. During the blowing process, the PTFE waterproof and moisture-permeable film sways up and down under force. The sleeve 201 supports the spring 203 to push the slide bar 202 upward by elastic force, driving the tensioning roller 204 to exert upward force, keeping the PTFE waterproof and moisture-permeable film always flat, improving the wind-receiving effect, and at the same time preventing the PTFE waterproof and moisture-permeable film from wrinkling due to gravity and affecting the coating effect.
[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency coating device for producing a PTFE waterproof and breathable membrane, comprising a base device (1), a transfer device (3) is arranged above the base device (1), and a drying device (4) is arranged at the bottom of the transfer device (3), characterized in that: A material stretching device (2) is disposed in the middle of the base device (1), and a coating device (5) is disposed on one side of the transfer device (3); The material stretching device (2) comprises two symmetrical sleeves (201), a slide rod (202) is slidably inserted at the top of the sleeve (201), a spring (203) is fixedly arranged at the bottom end of the slide rod (202), and a material stretching roller (204) is fixedly arranged at the top end of the slide rod (202); The coating device (5) comprises a material storage box (501), a material discharge pipe (502) is arranged at the bottom of the material storage box (501), and a coating brush (503) is arranged at the bottom of the material discharge pipe (502).
2. The high-efficiency coating device for producing PTFE waterproof and breathable membrane according to claim 1, characterized in that: The base device (1) comprises a connecting frame (101), a material discharge roller (102) being rotatably arranged on the top of the connecting frame (101), two material transfer rollers (103) being rotatably arranged in front of the connecting frame (101) in the upper and lower directions, a gear (104) being arranged at one end of the material transfer roller (103), and a first motor (105) being mounted on one side of the gear (104).
3. The high-efficiency coating device for producing PTFE waterproof and breathable membrane according to claim 1, characterized in that: The transfer device (3) comprises a top bracket (301), a lead screw (302) being rotatably arranged at the bottom of the top bracket (301), a light rod (303) being arranged above the lead screw (302), and a second motor (304) being mounted at one end of the lead screw (302).
4. The high-efficiency coating device for producing PTFE waterproof and breathable membrane according to claim 1, characterized in that: The drying device (4) comprises a drying hood (401), a fan (402) is installed at the bottom of the drying hood (401), and an electric heating pipe (403) is arranged below the fan (402).
5. The high-efficiency coating device for producing PTFE waterproof and breathable membrane according to claim 3, characterized in that: The lead screw (302) is connected to a bearing of the top bracket (301), and the lead screw (302) is connected to the second motor (304) by a parallel key.
6. The high-efficiency coating device for producing PTFE waterproof and breathable membrane according to claim 4, characterized in that: The drying hood (401) is cylindrical, and the fan (402) is bolted to the drying hood (401).