Thermally conductive silicone calendering line

Abstract

The utility model relates to a kind of heat-conducting silica gel calendering production line, relate to the field of silica gel calendering.This technical scheme greatly improves the function compatibility of heat-conducting silica gel calendering production line, by modular design and multiple process flexible switching, can be adapted to the multiple forming processes of low, medium, high viscosity liquid silicone, cover multiple types of product production, break the existing special production line limitation;In addition, the scheme meets customization and research and development needs, secondary coating, rough and fine calendering process can adjust glue layer thickness, post-processing module supports pad or roll-shaped double-morphology output, can be adapted to different size, performance requirements, while providing adjustable hardware support for process formulation research and development.

Description

Technical Field

[0001] This utility model relates to the field of silicone calendering technology, and in particular to a thermally conductive silicone calendering production line. Background Technology

[0002] Silicone sheets are widely used in many fields such as electronic heat dissipation, new energy sealing, and automotive thermal insulation due to their excellent thermal conductivity, insulation, and sealing properties. Currently, existing silicone sheet production lines in the industry are generally characterized by simple structure and single function, and are mostly dedicated production lines for specific processes or specifications. This has been the long-standing technological status quo in this field.

[0003] However, existing silicone sheet production lines have the following drawbacks: due to the individualized needs of different customers in terms of production processes, size specifications, and formulation systems, and their urgent need for product process formulation research and development, the functional compatibility of existing silicone sheet production lines is seriously insufficient. They are unable to meet the customized production requirements of customers, nor can they provide effective hardware support for process formulation research and development. Summary of the Invention

[0004] The purpose of this invention is to provide a thermally conductive silicone calendering production line to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A thermally conductive silicone calendering production line, comprising, along the film conveying direction, the following components in sequence: The unwinding module is used to release the substrate release film, glass fiber, and flexible film; The coating and calendering front module is located downstream of the unwinding module for film transport. It is used to apply silicone to the substrate release film and perform initial coating and calendering processes. The first drying module is located downstream of the film transport of the coating and calendering front section module, and is used to dry or vulcanize silicone sheets for a specific process route. The peeling and winding front module is located downstream of the film transport of the first drying module. It is used to peel the film from the release film and to wind up the release film. The coating and calendering downstream module is located downstream of the film transport of the peeling and winding upstream module. It is used to apply silicone again to the peeled film and perform scraping, coarse calendering and fine calendering processes. The second drying module is located downstream of the film transport of the coating and calendering post-module, and is used to dry the film after fine calendering. A peeling and winding downstream module, located downstream of the film conveying section of the second drying module, is used to peel the film from the release film and wind up the release film; and The post-processing module is located downstream of the film transport of the peeling and winding post-section module, and is used to perform bonding, edge trimming, cutting or winding on the finished film.

[0006] In some embodiments, the unwinding module includes: The release film unwinding assembly is equipped with a magnetic powder brake and an air shaft, on which a release film roll serving as a base is sleeved for releasing the release film. A fiberglass unwinding assembly is equipped with a magnetic powder brake and an air shaft. A fiberglass roll is sleeved on the air shaft, which is located downstream of the membrane transport of the release film unwinding assembly and is used to release the fiberglass. A first release film unwinding assembly is equipped with a magnetic powder brake and an air shaft. A release film roll is mounted on the air shaft, which is located downstream of the film transport section of the glass fiber unwinding assembly and is used to release the release film. The soft film unwinding assembly is equipped with a magnetic powder brake and an air shaft. The soft film roll is sleeved on the air shaft and is located upstream of the film transport of the post-processing module. It is used to release the soft film.

[0007] In some embodiments, the coating calendering front module includes, in sequence along the film transport direction: A silicone guide roller is disposed downstream of the release film unwinding assembly and is used to guide the release film transport. The first pre-coating feed baffle is located downstream of the film conveying of the silicone guide roller and is used to adjust or limit the feeding width. The first coating assembly is equipped with an upper scraper roller and a lower back roller. It is located downstream of the film conveyor of the first coating front feed baffle and is used to uniformly coat the viscous adhesive onto the substrate release film. A first calendering feed baffle is disposed downstream of the film conveying assembly of the first coating component; and The first calendering roller is located downstream of the first calendering feed baffle for film transport and is used to perform initial calendering on the film.

[0008] In some embodiments, the first drying module is a first drying oven located downstream of the film conveying of the first calendering roll, and is used to dry or vulcanize silicone sheets for a specific process route.

[0009] In some embodiments, the peeling and winding front module includes, in sequence along the film transport direction: A first peeling traction double roller, disposed downstream of the film conveyor in the first oven, is used to peel the film from the release film; and The first release film winding assembly is equipped with a servo pneumatic air shaft, which is located on the release film winding path side of the first peeling traction double rubber roller, and is used to wind up the peeled release film.

[0010] In some embodiments, the coating calendering post-module includes, sequentially along the film transport direction: The second pre-coating feed baffle is located downstream of the film conveying of the first peeling traction double rubber roller and is used to scrape off excess viscous adhesive. The second coating assembly is equipped with an upper scraper roller and a lower back roller. It is located downstream of the film conveying of the second pre-coating feed baffle and is used to coat the film with adhesive again. The second calendering feed baffle is located downstream of the film conveying of the second coating assembly; The second release film unwinding assembly is equipped with a magnetic powder brake and an air shaft. The air shaft is fitted with a release film roll, which is located on the upstream side of the film conveyor of the second calendering feed baffle and is used to release the release film. A second calendering roller, disposed downstream of the second calendering feed baffle during film transport, is used for rough calendering of the film; and The third calendering roll is located downstream of the second calendering roll for film transport and is used to perform fine calendering on the film.

[0011] In some embodiments, the second drying module is a second drying oven, which is located downstream of the film transport of the third calendering roller, and is used to dry the finely calendered film.

[0012] In some embodiments, the peeling and winding post-section module includes, in sequence along the film transport direction: A second peeling traction double roller, disposed downstream of the film conveyor in the second oven, is used to peel the film from the release film; and The second release film winding assembly is equipped with a servo pneumatic air shaft, which is located on the release film winding path side of the second peeling traction double rubber roller, and is used to wind up the peeled release film.

[0013] In some embodiments, the post-processing module includes, in sequence along the diaphragm transport direction: The bonding traction double rubber roller is located downstream of the second peeling traction double rubber roller for film transport and is used to bond the soft film released by the soft film unwinding assembly with the peeled lower film. An edge trimming cutter is located downstream of the film conveyor of the bonding traction double rubber rollers and is used for trimming the edges of the film. The post-processing traction double rubber roller is located downstream of the film conveying of the edge trimmer and is used to guide the film conveying. A follow-up cutting assembly, equipped with dual rubber rollers and a cutter, is located downstream of the post-processing traction dual rubber rollers for film conveying. The dual rubber rollers are used to press the film and follow it for conveying. The cutter is used to cut the film into thermally conductive silicone pads. The post-processing winding assembly is equipped with a servo pneumatic air shaft, which is located downstream of the film transport of the follow-up cutting assembly, and is used to wind the film into a thermally conductive silicone roll.

[0014] In some embodiments, the thermally conductive silicone calendering production line further includes: The first silicone dispensing point is located between the silicone guide roller and the first pre-coating feed baffle; and The second silicone dispensing point is located between the first peeling traction double roller and the second scraping pre-feeding baffle. The first silicone dispensing point and the second silicone dispensing point are respectively used to apply silicone to the membrane.

[0015] The beneficial effects of the technical solution provided by this utility model include at least the following: This technical solution significantly improves the functional compatibility of the thermally conductive silicone calendering production line. Through modular design and flexible switching of multiple processes, it can adapt to various molding processes of low, medium and high viscosity liquid silicone, covering the production of multiple types of products and breaking the limitations of existing dedicated production lines. In addition, this solution meets customization and R&D needs. The thickness of the adhesive layer can be adjusted in the secondary coating and rough and fine calendering processes. The post-processing module supports dual-form output in pad or roll shape, which can adapt to different sizes and performance requirements. At the same time, it provides adjustable hardware support for process formulation development. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 A schematic diagram of the structure of a thermally conductive silicone calendering production line provided in an exemplary embodiment of the present invention is shown.

[0018] In the picture: 100. Release film unwinding assembly; 101. Silicone guide roller; 102. First pre-coating feed baffle; 103. First coating assembly; 104. First calendering feed baffle; 105. Fiberglass unwinding assembly; 106. First release film unwinding assembly; 107. First calendering roll; 200. First drying oven; 300. First release film winding assembly; 301. First peeling traction double rubber roller; 400. Second pre-coating feed baffle; 401. Second coating assembly; 402. Second calendering feed baffle; 403. Second release film unwinding assembly; 404, Second calendering roll; 500, Third calendering roll; 600. Second drying oven; 700. Second release film winding assembly; 701. Second peeling traction double rubber roller; 702. Flexible film unwinding assembly; 703. Adhesive traction double rubber rollers; 704. Trimming cutter; 705. Post-processing traction double rubber rollers; 706. Follow-up cutting component; 707. Post-processing rewind assembly. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1This diagram illustrates the structure of a thermally conductive silicone calendering production line according to an exemplary embodiment of the present invention. The production line, along the film transport direction, sequentially includes: an unwinding module for releasing the substrate release film, glass fiber, and soft film; a coating and calendering pre-section module, located downstream of the unwinding module's film transport, for applying silicone to the substrate release film and performing initial coating and calendering treatments; a first drying module, located downstream of the coating and calendering pre-section module's film transport, for drying or vulcanizing the silicone sheet according to a specific process route; and a peeling and rewinding pre-section module, located downstream of the first drying module's film transport, for peeling the film from the substrate release film. The system includes: a release film and a winding release film; a coating and calendering post-module, located downstream of the film transport of the peeling and winding pre-module, for applying silicone again to the peeled film and performing scraping, coarse calendering, and fine calendering; a second drying module, located downstream of the film transport of the coating and calendering post-module, for drying the finely calendered film; a peeling and winding post-module, located downstream of the film transport of the second drying module, for peeling the film from the release film and winding the release film; and a post-processing module, located downstream of the film transport of the peeling and winding post-module, for performing bonding, edge trimming, cutting, or winding on the finished film.

[0023] In detail, the unwinding module includes: a release film unwinding assembly 100, which is equipped with a magnetic powder brake and an air shaft, and a release film roll serving as a substrate is sleeved on the air shaft for releasing the release film; a fiberglass unwinding assembly 105, which is equipped with a magnetic powder brake and an air shaft, and a fiberglass roll is sleeved on the air shaft, located downstream of the film transport of the release film unwinding assembly 100 for releasing the fiberglass; a first release film unwinding assembly 106, which is equipped with a magnetic powder brake and an air shaft, and a release film roll is sleeved on the air shaft, located downstream of the film transport of the fiberglass unwinding assembly 105 for releasing the release film; and a soft film unwinding assembly 702, which is equipped with a magnetic powder brake and an air shaft, and a soft film roll is sleeved on the air shaft, located upstream of the film transport of the post-processing module for releasing the soft film.

[0024] In this embodiment, the fiberglass unwinding assembly 105 and the first release film unwinding assembly 106 can be selected to perform a single unwinding operation or perform unwinding operations simultaneously, depending on production needs.

[0025] In this embodiment, the release film unwinding assembly 100 uses a magnetic powder brake to control tension and an air shaft to fix the roll material, stably releasing the base release film as a base carrier for silicone coating; the fiberglass unwinding assembly 105 is located downstream of it, with the same configuration to ensure smooth release of the fiberglass, and can add a reinforcing layer to the film as needed; the first release film unwinding assembly 106 is downstream of the fiberglass assembly, releasing the release film to cover the adhesive layer, preventing adhesion and protecting the adhesive surface; the soft film unwinding assembly 702 is upstream of the post-processing stage, stably releasing the soft film with the same configuration to meet the finished product bonding requirements.

[0026] More specifically, the above-mentioned coating and calendering pre-section module includes, in sequence along the film conveying direction: a silicone guide roller 101, which is disposed downstream of the release film unwinding assembly 100 and is used to guide the release film conveying; a first pre-coating feed baffle 102, which is disposed downstream of the silicone guide roller 101 and is used to adjust or limit the feeding width; a first coating assembly 103, which is equipped with an upper scraper roller and a lower back roller, and is disposed downstream of the first pre-coating feed baffle 102 and is used to uniformly coat the adhesive onto the substrate release film; a first calendering feed baffle 104, which is disposed downstream of the first coating assembly 103 and is used to perform initial calendering treatment on the film.

[0027] In this embodiment, the first coating assembly 103 can control whether to perform the coating process by adjusting the gap between its upper scraper roller and lower back roller.

[0028] In this embodiment, the silicone guide roller 101 is downstream of the release film unwinding assembly, stably guiding the transfer of the substrate release film; the first pre-coating feed baffle 102 follows closely behind, adjusting or limiting the feeding width; the first coating assembly 103, through the cooperation of the upper scraper roller and the lower back roller, uniformly coats the silicone onto the release film; the first calendering feed baffle 104 tidies up the film state, preparing for calendering; the first calendering roller 107 completes the initial calendering, initially shaping the film structure.

[0029] Specifically, the first drying module is a first oven 200, which is located downstream of the film conveying of the first calendering roller 107 and is used to dry or vulcanize silicone sheets for a specific process route; the peeling and winding front module includes, in sequence along the film conveying direction: a first peeling traction double rubber roller 301, which is located downstream of the film conveying of the first oven 200 and is used to peel the film from the release film; and a first release film winding assembly 300, which is equipped with a servo pneumatic air shaft, which is located on the release film winding path side of the first peeling traction double rubber roller 301 and is used to wind up the peeled release film.

[0030] In this embodiment, the first peeling traction double rubber roller 301 is downstream of the first drying oven 200. With the help of the traction and clamping force of the double rubber roller, the film and the upper release film are separated to ensure that the peeling process does not damage the film. The first release film upper winding assembly 300 relies on the servo pneumatic air expansion shaft to stably wind up the peeled release film on the release film winding path side to realize resource recycling and reuse.

[0031] More specifically, the above-mentioned coating and calendering post-section module sequentially includes, along the film conveying direction: a second pre-coating feed baffle 400, which is disposed downstream of the first peeling traction double glue roller 301 for scraping off excess adhesive; a second coating assembly 401, which is equipped with an upper scraper roller and a lower back roller, disposed downstream of the second pre-coating feed baffle 400 for recoating the film with adhesive; and a second calendering feed baffle 402, disposed in the film conveying direction of the second coating assembly 401. Downstream; a second release film unwinding assembly 403, equipped with a magnetic powder brake and an air shaft, on which a release film roll is sleeved, is located upstream of the film conveying section of the second calendering feed baffle 402, and is used to release the release film; a second calendering roller 404, located downstream of the film conveying section of the second calendering feed baffle 402, is used to perform coarse calendering on the film; and a third calendering roller 500, located downstream of the film conveying section of the second calendering roller 404, is used to perform fine calendering on the film.

[0032] In this embodiment, the second coating assembly 401 can control whether to perform the coating process by adjusting the gap between its upper scraper roller and lower back roller.

[0033] In this embodiment, the second pre-coating feed baffle 400, downstream of the first peeling traction double glue roller 301, scrapes off excess glue after secondary coating, controlling the amount of glue used. The second coating assembly 401, through the cooperation of the upper scraper roller and the lower back roller, achieves uniform secondary coating of the film to meet different thickness requirements. The second calender feed baffle 402 tidies up the state of the coated film, preparing it for calendering. The second release film unwinding assembly 403, with the help of a magnetic powder brake and an air shaft, stably releases the release film upstream, preventing the glue layer from sticking during calendering. Subsequently, the second calender roller 404 completes the initial shaping of the rough calendering, and the third calender roller 500 performs fine calendering, further improving the flatness and structural density of the film.

[0034] Furthermore, the aforementioned second drying module is a second oven 600, which is located downstream of the film conveying section of the third calendering roller 500, and is used to dry the finely calendered film. The peeling and winding section module includes, in sequence along the film conveying direction: a second peeling traction double rubber roller 701, which is located downstream of the film conveying section of the second oven 600, and is used to peel the film from the release film; and a second release film winding assembly 700, which is equipped with a servo pneumatic air shaft, which is located on the release film winding path side of the second peeling traction double rubber roller 701, and is used to wind up the peeled release film.

[0035] In this embodiment, the second oven 600 is located downstream of the third calendering roller 500. Drying thoroughly solidifies the adhesive layer of the calendered film, further stabilizing the film structure and performance and preventing deformation or adhesion of the adhesive layer during subsequent processing. The second peeling traction double rubber roller 701 is downstream of the second oven 600. With the traction clamping force of the double rubber roller, it separates the film from the upper release film, ensuring that the film surface remains intact. The second release film upper winding assembly 700 stably winds up the peeled release film on the release film winding path side.

[0036] Furthermore, the post-processing module, along the film conveying direction, sequentially includes: a bonding traction double roller 703, which is located downstream of the second peeling traction double roller 701 during film conveying, and is used to bond the soft film released by the soft film unwinding assembly 702 with the peeled lower film; an edge trimming cutter 704, which is located downstream of the bonding traction double roller 703 during film conveying, and is used to trim the edges of the film; and a post-processing traction double roller 705, which is located downstream of the edge trimming cutter 704. Downstream of the membrane conveying assembly 704, it is used to guide the membrane conveying; the follow-up cutting assembly 706, which is equipped with a double rubber roller and a cutter, is located downstream of the membrane conveying assembly of the post-processing traction double rubber roller 705. The double rubber roller is used to press the membrane and follow the conveying assembly, and the cutter is used to cut the membrane into thermally conductive silicone pads; and the post-processing winding assembly 707, which is equipped with a servo pneumatic air shaft, is located downstream of the membrane conveying assembly 706, and is used to wind the membrane into thermally conductive silicone rolls.

[0037] In this embodiment, the bonding traction double rubber roller 703 is downstream of the second peeling traction double rubber roller 701, bonding the soft film released by the soft film unwinding assembly 702 with the lower film, giving the finished product an additional functional layer; the edge trimmer 704 trims the edge of the film to ensure uniform size; the post-processing traction double rubber roller 705 stably guides the film transmission, and the follow-up cutting assembly 706 presses the follow-up transmission with the double rubber roller and cuts with the cutter to make the film into a silicone pad; the post-processing winding assembly 707 winds the film into a silicone roll.

[0038] It is worth mentioning that the aforementioned thermally conductive silicone calendering production line also includes: a first silicone dispensing point, located between the silicone guide roller 101 and the first pre-coating feed baffle 102; and a second silicone dispensing point, located between the first peeling traction double rubber roller 301 and the second pre-coating feed baffle 400; wherein the first and second silicone dispensing points are respectively used to apply silicone to the film. In one example, the applied silicone is liquid silicone or two-component silicone, and the first silicone application point and the second silicone application point can be applied with silicone of the same viscosity or different viscosities.

[0039] Next, the working principle of a thermally conductive silicone calendering production line involved in the embodiments of this utility model will be explained. The thermally conductive silicone calendering production line can execute multiple process routes according to production needs, including calendering process, coating process, coating + calendering process, and calendering + calendering process.

[0040] (1) Calendering + calendering process is suitable for non-liquid silicone with a viscosity of 30,000 CPS or higher, specifically: Release film unwinding assembly 100 releases PET release film. After passing through silicone guide roller 101, silicone is applied at the first silicone feeding point. Then, the feeding width is adjusted or limited by the first pre-coating feed baffle 102 and enters the first coating assembly 103 to complete the first coating. Subsequently, the film passes through the first calendering feed baffle 104, and merges with the glass fiber released by the glass fiber unwinding assembly 105 and the release film released by the first release film unwinding assembly 106, and enters the first calendering roller 107 for initial calendering. The calendered film then enters the first drying oven 200 for drying or vulcanization. After drying or vulcanization, the upper release film is peeled off by the first peeling traction double rubber roller 301. The peeled release film is wound up by the first release film winding assembly 300. The lower film is coated with adhesive for the second time at the second silicone injection point. After the adhesive is removed by the second scraping pre-feed baffle 400, it enters the second scraping assembly 401 to complete the second scraping. Next, the film passes through the second calendering feed baffle 402 and merges with the release film released by the second release film unwinding assembly 403. It then passes through the second calendering roller 404 for coarse calendering, the third calendering roller 500 for fine calendering, and finally enters the second drying oven 600 for drying. After drying, the upper release film is peeled off by the second peeling traction double rubber roller 701. The peeled release film is then wound up by the second release film winding assembly 700. Subsequently, the soft film is released by the soft film unwinding assembly 702 and bonded to the lower film at the bonding traction double rubber roller 703. The bonded film can be trimmed by the edge cutter 704, guided by the post-processing traction double rubber roller 705, and then cut into silicone pads by the follow-up cutting assembly 706. Alternatively, the follow-up cutting assembly 706 can pass directly through without performing the cutting action and be wound into a silicone roll by the post-processing winding assembly 707.

[0041] (2) The calendering process is suitable for silicone of various viscosities and does not require scraping or the addition of glass fiber. Specifically: The first silicone dispensing point will be treated with adhesive, while the second silicone dispensing point will not be treated with adhesive. Neither the first coating assembly 103 nor the second coating assembly 401 performs the coating process; The fiberglass unwinding assembly 105 does not perform the unwinding process, while the unwinding assembly 106 on the first release film performs the unwinding process. The first release film winding assembly 300 does not perform a winding process; The unwinding assembly 403 on the second release film, the winding assembly 700 on the second release film, and the unwinding assembly 702 on the flexible film can selectively perform the unwinding or winding process according to production needs.

[0042] (3) The coating process is suitable for low-viscosity liquid silicone and does not involve calendering, specifically: The first silicone dispensing point will be treated with adhesive, while the second silicone dispensing point will not be treated with adhesive. The fiberglass unwinding assembly 105 performs the unwinding process, while the first release film unwinding assembly 106 does not perform the unwinding process. The first calendering roll 107, the second calendering roll 404, and the third calendering roll 500 do not perform the calendering process; The unwinding assembly 403 on the second release film, the winding assembly 700 on the second release film, and the unwinding assembly 702 on the flexible film can selectively perform the unwinding or winding process according to production needs.

[0043] (4) The coating + calendering process is suitable for low-viscosity non-liquid silicone with a viscosity of less than 30,000 CPS, specifically: The fiberglass unwinding assembly 105 performs the unwinding process, while the first release film unwinding assembly 106 does not perform the unwinding process. The first silicone dispensing point performs the adhesive application process, the first scraping assembly 103 performs the coating process, and the first calendering roller 107, the second calendering roller 404, and the third calendering roller 500 perform the calendering process according to production needs. The unwinding assembly 403 on the second release film, the winding assembly 700 on the second release film, and the unwinding assembly 702 on the flexible film can selectively perform the unwinding or winding process according to production needs.

[0044] In summary, this technical solution significantly improves the functional compatibility of the thermally conductive silicone calendering production line. Through modular design and flexible switching between multiple processes, it can adapt to various molding processes for low, medium, and high viscosity liquid silicone, covering the production of multiple types of products and breaking the limitations of existing dedicated production lines. In addition, this solution meets customization and R&D needs. The thickness of the adhesive layer can be adjusted in the secondary coating and coarse and fine calendering processes. The post-processing module supports dual-form output in pad or roll shape, which can adapt to different sizes and performance requirements. At the same time, it provides adjustable hardware support for process formulation development.

[0045] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0046] 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 thermally conductive silicone calendering production line, characterized in that, The thermally conductive silicone calendering production line includes, along the film conveying direction, the following components in sequence: The unwinding module is used to release the substrate release film, glass fiber, and flexible film; The coating and calendering front module is located downstream of the unwinding module for film transport. It is used to apply silicone to the substrate release film and perform initial coating and calendering processes. The first drying module is located downstream of the film transport of the coating and calendering front section module, and is used to dry or vulcanize silicone sheets for a specific process route. The peeling and winding front module is located downstream of the film transport of the first drying module. It is used to peel the film from the release film and to wind up the release film. The coating and calendering downstream module is located downstream of the film transport of the peeling and winding upstream module. It is used to apply silicone again to the peeled film and perform scraping, coarse calendering and fine calendering processes. The second drying module is located downstream of the film transport of the coating and calendering post-module, and is used to dry the film after fine calendering. A peeling and winding downstream module, located downstream of the film conveying section of the second drying module, is used to peel the film from the release film and wind up the release film; and The post-processing module is located downstream of the film transport of the peeling and winding post-section module, and is used to perform bonding, edge trimming, cutting or winding on the finished film.

2. The thermally conductive silicone calendering production line according to claim 1, characterized in that, The unwinding module includes: Release film unwinding assembly (100) is equipped with a magnetic powder brake and an air shaft, on which a release film roll serving as a base is sleeved for releasing the release film; A glass fiber unwinding assembly (105) is equipped with a magnetic powder brake and an air shaft, on which a glass fiber roll is sleeved. It is located downstream of the membrane transport of the release film unwinding assembly (100) and is used to release the glass fiber. The first release film unwinding assembly (106) is equipped with a magnetic powder brake and an air shaft, on which a release film roll is sleeved. This air shaft is located downstream of the film transport section of the glass fiber unwinding assembly (105) and is used to release the release film. The soft film unwinding assembly (702) is equipped with a magnetic powder brake and an air shaft. The air shaft is fitted with a soft film roll, which is located upstream of the film transport of the post-processing module and is used to release the soft film.

3. The thermally conductive silicone calendering production line according to claim 2, characterized in that, The coating and calendering front section module includes, along the film transport direction, the following components in sequence: A silicone guide roller (101) is disposed downstream of the release film unwinding assembly (100) for guiding the release film transport. The first pre-coating feed baffle (102) is located downstream of the film conveying of the silicone guide roller (101) and is used to adjust or limit the feeding width. The first coating assembly (103) is equipped with an upper scraper roller and a lower back roller. It is located downstream of the film conveyor of the first coating front feed baffle (102) and is used to uniformly coat the adhesive onto the substrate release film. A first calendering feed baffle (104) is disposed downstream of the film conveying assembly (103) of the first coating assembly; and The first calendering roller (107) is located downstream of the first calendering feed baffle (104) for the initial calendering of the film.

4. The thermally conductive silicone calendering production line according to claim 3, characterized in that, The first drying module is a first drying oven (200), which is located downstream of the film conveying of the first calendering roller (107) and is used to dry or vulcanize silicone sheets for a specific process route.

5. The thermally conductive silicone calendering production line according to claim 4, characterized in that, The peeling and winding front section module includes, along the membrane transport direction, the following components in sequence: A first peeling traction double roller (301), disposed downstream of the film conveying system in the first oven (200), is used to peel the film from the release film; and The first release film winding assembly (300) is equipped with a servo pneumatic air shaft, which is located on the release film winding path side of the first peeling traction double rubber roller (301) for winding up the peeled release film.

6. The thermally conductive silicone calendering production line according to claim 5, characterized in that, The coating and calendering post-section module includes, along the film transport direction, the following components in sequence: The second pre-coating feed baffle (400) is located downstream of the first peeling traction double rubber roller (301) for scraping off excess viscous adhesive. The second coating assembly (401) is equipped with an upper scraper roller and a lower back roller. It is located downstream of the film conveying of the second pre-coating feed baffle (400) and is used to coat the film with adhesive again. The second calendering feed baffle (402) is disposed downstream of the film conveying of the second coating assembly (401); The second release film unwinding assembly (403) is equipped with a magnetic powder brake and an air shaft. The air shaft is fitted with a release film roll, which is located on the upstream side of the film conveying of the second calendering feed baffle (402) and is used to release the release film. The second calendering roller (404), disposed downstream of the second calendering feed baffle (402) for film conveying, is used to perform rough calendering on the film; and The third calendering roller (500) is located downstream of the second calendering roller (404) for film transport and is used to perform fine calendering on the film.

7. The thermally conductive silicone calendering production line according to claim 6, characterized in that, The second drying module is a second drying oven (600), which is located downstream of the film conveying of the third calendering roller (500) and is used to dry the finely calendered film.

8. The thermally conductive silicone calendering production line according to claim 7, characterized in that, The peeling and winding post-section module includes, along the membrane transport direction, the following components in sequence: A second peeling traction double roller (701), disposed downstream of the film conveyor in the second oven (600), is used to peel the film from the release film; and The second release film upper winding assembly (700) is equipped with a servo pneumatic air shaft, which is located on the release film winding path side of the second peeling traction double rubber roller (701), and is used to wind up the peeled release film.

9. The thermally conductive silicone calendering production line according to claim 8, characterized in that, The post-processing module includes, in sequence along the diaphragm transport direction: A bonding traction double rubber roller (703) is disposed downstream of the second peeling traction double rubber roller (701) for bonding the soft film released by the soft film unwinding assembly (702) with the peeled lower film. An edge trimming cutter (704) is disposed downstream of the film conveying of the bonding traction double rubber rollers (703) and is used to trim the edges of the film. The post-processing traction double rubber roller (705) is located downstream of the film transport of the edge trimmer (704) and is used to guide the film transport; A follow-up cutting assembly (706), equipped with dual rubber rollers and a cutter, is located downstream of the post-processing traction dual rubber rollers (705) for film transport. The dual rubber rollers are used to press the film and follow its transport, and the cutter is used to cut the film into thermally conductive silicone pads; and The post-processing winding assembly (707) is equipped with a servo pneumatic air shaft, which is located downstream of the diaphragm transport of the follow-up cutting assembly (706), and is used to wind the diaphragm into a thermally conductive silicone roll.

10. The thermally conductive silicone calendering production line according to claim 9, characterized in that, The thermally conductive silicone calendering production line also includes: The first silicone dispensing point is located between the silicone guide roller (101) and the first pre-coating feed baffle (102); and The second silicone dispensing point is located between the first peeling traction double rubber roller (301) and the second scraping pre-feeding baffle (400); The first silicone dispensing point and the second silicone dispensing point are respectively used to apply silicone to the membrane.

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