Composite roll for waterproofing membrane substrate film coating

Abstract

The utility model discloses a kind of composite rolls for waterproofing membrane base material film, belong to waterproofing membrane production equipment field, including roller body, both ends of the roller body are fixedly connected with connecting shaft, elastic buffer layer is fixedly sleeved in the roller body outer wall, antiskid wear layer is fixedly sleeved in the outer wall of the elastic buffer layer, annular heating cavity for heating the adhering surface of base material and film material is set in the roller body, one end of the roller body is provided with liquid inlet pipe, the other end of the roller body is provided with liquid outlet pipe, the utility model is set to the elastic buffer layer can make the pressure of composite roll to base material and film material more uniform, the design of annular heating cavity and helical guide vane ensures that roller body surface temperature is uniform, through the accurate control of pressure and temperature, effectively avoid the generation of bubble and wrinkle in film process, improve the flatness and bonding strength of film, significantly improve the product quality of waterproofing membrane film.

Description

Technical Field

[0001] This utility model relates to the technical field of waterproof membrane production equipment, and in particular to a composite roller for coating waterproof membrane substrate. Background Technology

[0002] In the production process of waterproof membranes, a coating process is usually applied to the surface of the substrate to improve the performance and service life of the membrane. The composite roller is the core equipment in the coating process, and its main function is to tightly bond the coating material to the substrate.

[0003] However, existing composite rollers used for coating waterproof membrane substrates suffer from uneven pressure between the composite roller and the substrate, or improper temperature control during coating, resulting in poor adhesion between the coating material and the substrate. This easily leads to air bubbles and wrinkles, affecting the product quality of the waterproof membrane. Furthermore, the composite roller is prone to surface wear due to long-term friction with the substrate and coating material, which shortens its service life and increases production costs. Utility Model Content

[0004] The purpose of this invention is to solve the problems of bubbles, wrinkles, and poor wear resistance that are common in existing composite roller coatings, and to propose a composite roller for coating waterproof membrane substrates.

[0005] To achieve the above objectives, the present invention employs the following technology: a composite roller for coating waterproof membrane substrate, comprising a roller body, with connecting shafts fixedly connected to both ends of the roller body, an elastic buffer layer fixedly sleeved on the outer wall of the roller body, an anti-slip and wear-resistant layer fixedly sleeved on the outer wall of the elastic buffer layer, an annular heating cavity for heating the bonding surfaces of the substrate and the coating material inside the roller body, an inlet pipe provided at one end of the roller body, and an outlet pipe provided at the other end of the roller body.

[0006] As a further description of the above technical solution: one end of the inlet pipe and the outlet pipe are both connected to the annular heating chamber through a rotary joint, and the ends of the inlet pipe and the outlet pipe away from the roller body are both fixedly connected with a connecting flange.

[0007] As a further description of the above technical solution: a spiral guide plate is fixedly connected to the inner wall of the annular heating cavity.

[0008] As a further description of the above technical solution: the outer surface of the anti-slip and wear-resistant layer is provided with uniformly distributed anti-slip textures.

[0009] As a further description of the above technical solution: the elastic buffer layer is made of silicone material, and the thickness of the elastic buffer layer is 5-10mm.

[0010] As a further description of the above technical solution: the anti-slip and wear-resistant layer is made of polytetrafluoroethylene.

[0011] As a further description of the above technical solution: a keyway is provided at the end of the connecting shaft away from the roller body, and the keyway is used to connect with the driving device.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] This invention features an elastic buffer layer that allows for more uniform pressure on the substrate and coating material from the composite roller. The design of the annular heating chamber and spiral guide plate ensures uniform surface temperature of the roller. Precise control of pressure and temperature effectively prevents the formation of bubbles and wrinkles during the coating process, improving the flatness and adhesion strength of the coating and significantly enhancing the product quality of the waterproof membrane coating. The anti-slip and wear-resistant layer, made of polytetrafluoroethylene, has excellent wear resistance, reducing wear on the surface of the composite roller, extending its service life, and lowering production costs. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0015] Figure 2 A schematic diagram of the internal cross-section of the roller body according to an embodiment of the present invention is shown;

[0016] Figure 3 It shows Figure 2 Enlarged view of point A in the middle.

[0017] Legend:

[0018] 1. Roller body; 2. Connecting shaft; 3. Inlet pipe; 4. Outlet pipe; 5. Anti-slip and wear-resistant layer; 51. Anti-slip texture; 6. Elastic buffer layer; 7. Annular heating chamber; 8. Spiral guide plate; 9. Rotary joint; 10. Connecting flange. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1-3This embodiment provides a composite roller for coating waterproof membrane substrate, including a roller body 1. Both ends of the roller body 1 are fixedly connected to a connecting shaft 2. A keyway is provided at the end of the connecting shaft 2 away from the roller body 1. The keyway is used to connect with a driving device. The keyway facilitates the connection between the connecting shaft 2 and the driving device such as the drive motor, ensuring the stability of power transmission. An elastic buffer layer 6 is fixedly sleeved on the outer wall of the roller body 1. An anti-slip and wear-resistant layer 5 is fixedly sleeved on the outer wall of the elastic buffer layer 6. An annular heating cavity 7 is opened inside the roller body 1 for heating the bonding surface of the substrate and the coating material. A spiral guide plate 8 is fixedly connected to the inner wall of the annular heating cavity 7. A liquid inlet pipe 3 is provided at one end of the roller body 1, and a liquid outlet pipe 4 is provided at the other end of the roller body 1.

[0021] Specifically, in use, the composite roller is first connected to the drive equipment via the keyway on the connecting shaft 2. After installation, a heating medium, such as hot oil or hot water, is introduced into the annular heating chamber 7 through the liquid inlet pipe 3. The heating medium flows along the spiral channel under the action of the spiral guide plate 8, ensuring uniform flow and full contact with the inner wall of the annular heating chamber 7 and the outer wall of the roller body 1. This makes the annular heating chamber 7 flow uniformly, resulting in more uniform heating of the surface of the roller body 1. The heat is then recovered through the liquid outlet pipe 4, forming a closed-loop circulation to uniformly heat the roller body 1 until the surface temperature of the roller body 1 reaches the temperature required for coating. The roller body 1 then absorbs the heat. After absorbing heat, the heat is transferred to the outer elastic buffer layer 6 and anti-slip and wear-resistant layer 5 through heat conduction, and finally acts on the bonding surface. Finally, the driving equipment drives the composite roller to rotate, and the substrate and coating material pass under the composite roller. The elastic buffer layer 6 makes the composite roller apply uniform pressure to the substrate and coating material, and the anti-slip and wear-resistant layer 5 prevents the substrate and coating material from slipping. Under the combined action of pressure and temperature, the coating material and the substrate are tightly bonded, completing the coating process. It can push the air, water vapor and other substances that may be trapped or generated during the bonding process to the edge of the material, thereby effectively preventing the generation of air bubbles and ensuring that the coating is flat and defect-free.

[0022] Furthermore, one end of the inlet pipe 3 and the outlet pipe 4 are connected to the annular heating chamber 7 through a rotary joint 9, and the ends of the inlet pipe 3 and the outlet pipe 4 away from the roller body 1 are fixedly connected with connecting flanges 10.

[0023] Specifically, the composite roller needs to rotate continuously during operation, while the heating pipe is fixed. The connection problem between the roller body 1 and the inlet and outlet pipes is solved by a rotary joint 9. The rotary joint 9 allows the roller body 1 to rotate freely, while ensuring that the external heating medium can continuously, without interruption, and without leakage enter the annular heating chamber 7 inside the roller body 1 through the rotary joint 9. The reliable sealing performance of the rotary joint 9 avoids pressure fluctuations and heat loss caused by leakage of the heating medium, thereby ensuring the uniformity of the roller surface heating. The connection flange 10 facilitates the connection of the inlet pipe 3 and the outlet pipe 4 with the external heating medium supply equipment, improving the convenience of equipment installation and maintenance.

[0024] Furthermore, the outer surface of the anti-slip and wear-resistant layer 5 is provided with uniformly distributed anti-slip textures 51, and the anti-slip and wear-resistant layer 5 is made of polytetrafluoroethylene.

[0025] Specifically, the polytetrafluoroethylene (PTFE) material of the anti-slip and wear-resistant layer 5, with its external anti-slip texture 51, is the component that directly contacts the composite roller with the substrate and coating material. The anti-slip texture 51 on the surface of the anti-slip and wear-resistant layer 5 increases the contact friction with the material, ensuring that the material rotates synchronously with the roller body 1, preventing the substrate and coating from slipping. Furthermore, the anti-slip and wear-resistant layer 5 has excellent wear resistance, which can resist long-term friction damage and extend the service life of the roller body 1.

[0026] Furthermore, the elastic buffer layer 6 is made of silicone material, and the thickness of the elastic buffer layer 6 is 5-10mm.

[0027] Specifically, the elastic buffer layer 6 has good elasticity and can adapt to the deformation of the substrate surface, so as to evenly transmit the pressure to the entire bonding surface. The pressure deviation is controlled within ±0.02MPa to avoid local pressure abnormalities. The 5-10mm thickness of the elastic buffer layer 6 can absorb thickness fluctuations. Through its own compression change, the compression is small when the substrate is thin and large when the substrate is thick. In addition, the elastic buffer layer 6 can absorb some vibration, reduce the impact of vibration on the bonding process, and ensure the coating accuracy.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A composite roller for coating waterproof membrane substrate, characterized in that, The roller body (1) is fixedly connected to both ends of the roller body (1) with connecting shafts (2). An elastic buffer layer (6) is fixedly sleeved on the outer wall of the roller body (1). An anti-slip and wear-resistant layer (5) is fixedly sleeved on the outer wall of the elastic buffer layer (6). An annular heating cavity (7) for heating the bonding surface of the substrate and the coating material is opened inside the roller body (1). A liquid inlet pipe (3) is provided at one end of the roller body (1), and a liquid outlet pipe (4) is provided at the other end of the roller body (1).

2. The composite roller for coating waterproof membrane substrate according to claim 1, characterized in that, One end of the inlet pipe (3) and the outlet pipe (4) are connected to the annular heating chamber (7) through a rotary joint (9). The ends of the inlet pipe (3) and the outlet pipe (4) away from the roller body (1) are fixedly connected with connecting flanges (10).

3. The composite roller for coating waterproof membrane substrate according to claim 1, characterized in that, A spiral guide plate (8) is fixedly connected to the inner wall of the annular heating cavity (7).

4. The composite roller for coating waterproof membrane substrate according to claim 1, characterized in that, The outer surface of the anti-slip and wear-resistant layer (5) is provided with uniformly distributed anti-slip textures (51).

5. The composite roller for coating waterproof membrane substrate according to claim 1, characterized in that, The elastic buffer layer (6) is made of silicone material and has a thickness of 5-10 mm.

6. The composite roller for coating waterproof membrane substrate according to claim 1, characterized in that, The anti-slip and wear-resistant layer (5) is made of polytetrafluoroethylene.

7. The composite roller for coating waterproof membrane substrate according to claim 1, characterized in that, The connecting shaft (2) is provided with a keyway at one end away from the roller (1), and the keyway is used to connect with the drive device.

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