Electrically and thermally conductive silicone calendering apparatus

Abstract

This utility model relates to the field of thermally and electrically conductive silicone calendering production technology, specifically a thermally and electrically conductive silicone calendering device. It includes four legs, with a worktable fixedly connected to the upper ends of the four legs. A conveyor belt is located in the middle of the worktable. A pre-treatment mechanism is located on the right side of the upper end of the worktable. Limiting groups are located on the front and rear sides of the upper end of the worktable. Three calendering groups are fixedly connected to the upper end of the worktable. This thermally and electrically conductive silicone calendering device uses a guide plate and conveyor belt to cause silicone particles to gather towards the middle of the conveyor belt, avoiding excessive dispersion and waste. An anti-stick coating sleeve smooths the gathered silicone particles, and the anti-stick coating sleeve is tilted at 45°, allowing it to form progressive pressure when in contact with the silicone, preventing excessive local pressure that could cause silicone overflow, ensuring consistent silicone particle thickness throughout, avoiding uneven stress during roller calendering, and thus guaranteeing the calendering quality of the silicone particles.

Description

Technical Field

[0001] This utility model relates to the field of thermally and electrically conductive silicone calendering production technology, specifically to a thermally and electrically conductive silicone calendering device. Background Technology

[0002] Thermally conductive and conductive silicone requires calendering during the production process. Calendering equipment uses calendering rollers to calender the thermally conductive and conductive silicone. After calendering, the thermally conductive and conductive silicone becomes flat. The sides of the calendered thermally conductive and conductive silicone are mostly irregularly wavy. In the later stage, the edge material on both sides of the thermally conductive and conductive silicone needs to be trimmed.

[0003] Horizontal roller calenders are one of the main calendering equipment for conductive and thermally conductive silicone. However, in the existing equipment, the rollers of the calender will undergo elastic deformation under the action of the die pressure during the calendering process, resulting in silicone sheets that are thick in the middle and thin at both sides. To address this, we propose a conductive and thermally conductive silicone calendering device. Utility Model Content

[0004] To solve the above technical problems, this application provides a conductive and thermally conductive silicone calendering device, including four legs. The upper ends of the four legs are fixedly connected to a worktable. A conveyor belt is provided in the middle of the worktable. A driver is provided on the front right side of the worktable and the front right side of the conveyor belt. A pre-processing mechanism is provided on the upper right side of the worktable. Limiting groups are provided on the front and rear sides of the upper top of the worktable. Three calendering groups are fixedly connected to the upper top of the worktable. Each of the three calendering units includes a U-shaped frame II fixedly connected to the upper end of the worktable. Each of the three U-shaped frames II has a sliding groove I on both the front and rear sides of its inner cavity. Each of the three U-shaped frames II has two hydraulic rods II fixedly connected to the top wall of its inner cavity. The output ends of the two hydraulic rods II on the same side and the inner cavities of the two sliding grooves I are provided with a sliding frame. Each of the three sliding frames has a roller rotatably connected to its inner cavity. Each of the three sliding frames has a driver II fixedly connected to the rear side of its upper end. Each of the driver II on the same side has a transmission wheel fixedly connected to the output end of the driver II and the rear side of the outer surface of the roller. The two transmission wheels on the same side are connected by a belt.

[0005] In some embodiments, the pretreatment mechanism includes two fixed plates. A U-shaped frame is provided on the upper left side of both fixed plates. A hydraulic rod is fixedly connected to the middle of the inner top wall of the U-shaped frame. A telescopic rod symmetrically arranged front and rear is fixedly connected to the inner top wall of the U-shaped frame. A scraper assembly is fixedly connected to the output end of the hydraulic rod and the lower ends of the two telescopic rods. A guide plate is fixedly connected to the right side of the two fixed plates that are close to each other, and the two guide plates are symmetrically arranged front and rear.

[0006] In some embodiments, the lower ends of the two fixed plates are respectively fixedly connected to the rear right side and the front right side of the upper end of the workbench, and the lower ends of the two guide plates are together in contact with the outer surface of the conveyor belt.

[0007] In some embodiments, the scraper assembly includes an inclined connecting plate, an anti-stick coating sleeve is sleeved on the outer surface of the connecting plate, a symmetrically arranged screw post is fixedly connected to the middle of the inner cavity of the anti-stick coating sleeve, a symmetrically arranged connecting post is fixedly connected to the upper side of the outer surface of the connecting plate, a symmetrically arranged mounting groove is opened on the upper side of the outer surface of the connecting plate, a countersunk screw is provided in the inner cavity of the screw post and the inner cavity of the mounting groove on the same side, and a connecting seat is fixedly connected to the middle of the upper side of the outer surface of the connecting plate.

[0008] In some embodiments, the upper ends of the two connecting columns are fixedly connected to the lower ends of the two telescopic rods, and the output end of the hydraulic rod is movably connected to the inner cavity of the connecting seat.

[0009] In some embodiments, each of the two limiting groups includes two fixed seats. The lower side of the two fixed seats that are symmetrical in front and behind each other is provided with a sliding groove II. The inner cavity of each of the four sliding groove II is slidably connected to a sliding plate. The two sliding plates that are symmetrical in front and behind each other are jointly fixedly connected to a limiting plate. The upper side of the two fixed seats that are symmetrical in front and behind each other is fixedly connected to a hydraulic rod III in the horizontal direction. The upper side of the two fixed seats that are symmetrical in front and behind each other is provided with a through hole. The output ends of the two hydraulic rod III on the same side pass through the inner cavity of the through hole and are jointly fixedly connected to the limiting plate.

[0010] In some embodiments, the lower ends of two symmetrical fixed seats are fixedly connected to the front and rear sides of the upper end of the workbench, respectively, and the lower ends of the two limiting plates are together attached to the outer surface of the conveyor belt.

[0011] This utility model has at least the following beneficial effects: This invention utilizes the combined use of guide plates on both the front and rear sides and the conveyor belt to concentrate silicone particles towards the center of the conveyor belt, preventing excessive dispersion and waste. Furthermore, the combined use of hydraulic rods, telescopic rods, connecting seats, and connecting plates allows the anti-stick coating sleeve to smooth the concentrated silicone particles. The anti-stick coating sleeve is tilted at 45°, allowing it to apply progressive pressure upon contact with the silicone, preventing excessive local pressure that could cause silicone overflow. This ensures consistent silicone particle thickness throughout the process, preventing uneven stress during roller calendering due to varying thicknesses, which could lead to inconsistent elastic deformation and ultimately affect the thickness of the finished silicone sheet. This, in turn, guarantees the calendering quality of the silicone particles. The use of screw posts, countersunk screws, and mounting grooves facilitates quick disassembly and installation of the anti-stick coating sleeve and connecting plate, preventing wear and tear on the anti-stick coating sleeve over prolonged use and ensuring its effective smoothing of the silicone particles. In the specific implementation process, the use of hydraulic rods three on the front and rear sides can adjust the distance between the two symmetrical limiting plates, ensuring that the calendered silicone precisely fills the space between the two limiting plates. This avoids the silicone sheet from becoming too thin at the edges due to excessive extension during the calendering process, thus eliminating the need for edge trimming and improving the utilization rate of raw materials. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the calendering assembly of this utility model; Figure 4 This is a schematic diagram of the pretreatment mechanism of this utility model; Figure 5 This is a schematic diagram of the pretreatment mechanism of this utility model from another perspective; Figure 6 This is a schematic diagram of the scraper assembly of this utility model; Figure 7 This is a schematic diagram of the limiting assembly of this utility model.

[0013] In the diagram: 1. Support leg; 2. Driver 1; 3. Conveyor belt; 4. Pre-treatment mechanism; 41. Fixed plate; 42. U-shaped frame 1; 43. Telescopic rod; 44. Hydraulic rod 1; 45. Scraper assembly; 451. Connecting plate; 452. Connecting column; 453. Anti-stick coating sleeve; 454. Screw hole column; 455. Countersunk screw; 456. Connecting seat; 457. Mounting groove; 46. Guide plate; 5. Calendering assembly; 51. U-shaped frame 2; 52. Sliding groove 1; 53. Sliding frame; 54. Hydraulic rod 2; 55. Driver 2; 56. Transmission wheel; 57. Roller; 6. Worktable; 7. Limiting assembly; 71. Fixed seat; 72. Sliding groove 2; 73. Slide plate; 74. Hydraulic rod 3; 75. Through hole; 76. Limiting plate. Detailed Implementation

[0014] 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.

[0015] Example 1, please refer to Figure 1-6This utility model provides a technical solution: a conductive and thermally conductive silicone calendering device, including four support legs 1, with a worktable 6 fixedly connected to the upper end of the four support legs 1, a conveyor belt 3 in the middle of the worktable 6, a driver 2 on the front right side of the worktable 6 and the front right side of the conveyor belt 3, a pre-treatment mechanism 4 on the upper right side of the worktable 6, a limit group 7 on the front and rear sides of the upper end of the worktable 6, and three calendering groups 5 fixedly connected to the upper end of the worktable 6; Each of the three calendering groups 5 includes a U-shaped frame 51 fixedly connected to the upper end of the worktable 6. Sliding grooves 52 are provided on both the front and rear sides of the inner cavity of each of the three U-shaped frames 51. The sliding grooves 52 allow the sliding frame 53 to slide only up and down within its inner cavity. With the cooperation of hydraulic rods 54, the calendering of the conductive and thermally conductive silicone by the roller 57 becomes more stable. Two hydraulic rods 54 are fixedly connected to the top wall of the inner cavity of each of the three U-shaped frames 51. Sliding frames 53 are provided on the output ends of the two hydraulic rods 54 and the inner cavities of the two sliding grooves 52 on the same side. Rollers 57 are rotatably connected to the inner cavities of each of the three sliding frames 53. Drivers 55 are fixedly connected to the rear side of the upper end of each of the three sliding frames 53. Transmission wheels 56 are fixedly connected to the output end of the driver 55 and the rear side of the outer surface of the roller 57 on the same side. Two transmission wheels 56 on the same side are connected by a belt.

[0016] It should be noted that the specific installation methods, circuit connection methods, and control methods of the driver 1 2, hydraulic rod 2 54, and driver 2 55 in this utility model are all conventional designs and are standard design methods used by designers. Both driver 1 2 and driver 2 55 consist of a housing and a motor. Driver 1 2 can drive the conveyor belt 3 to rotate on the worktable 6. Driver 2 55, in cooperation with the transmission wheel 56 and the belt, drives the roller 57 to rotate in the inner cavity of the sliding frame 53. The roller 57 calenders the conductive and thermally conductive silicone below. According to the thickness of the conductive and thermally conductive silicone to be calendered, the hydraulic rod 2 54 drives the sliding frame 53 to slide up and down in the inner cavity of the sliding groove 1 52 to a suitable position, thereby adjusting the distance between the roller 57 and the conveyor belt 3.

[0017] The pretreatment mechanism 4 includes two fixed plates 41. The upper left side of the two fixed plates 41 is provided with a U-shaped frame 42. The fixed plates 41 can not only be used to fix the guide plate 46, but also support the U-shaped frame 42. The middle of the inner cavity top wall of the U-shaped frame 42 is fixedly connected to a hydraulic rod 44. The inner cavity top wall of the U-shaped frame 42 is fixedly connected to symmetrical telescopic rods 43, which restrict the movement of the scraper assembly 45, so that the scraper assembly 45 can only move in the vertical direction. The output end of the hydraulic rod 44 and the lower end of the two telescopic rods 43 are fixedly connected to the scraper assembly 45. The right side of the two fixed plates 41 that are close to each other is fixedly connected to a guide plate 46, and the two guide plates 46 are symmetrically arranged. The lower ends of the two fixed plates 41 are fixedly connected to the rear right side and the front right side of the upper end of the worktable 6, respectively. The lower ends of the two guide plates 46 are in contact with the outer surface of the conveyor belt 3.

[0018] First, the silicone granules are placed on the right side of the outer surface of the conveyor belt 3. The drive driver 2 is activated to rotate the conveyor belt 3, which transports the silicone granules to the left. The guide plates 46, which are symmetrically inclined, cause the silicone granules to gather in the middle of the conveyor belt 3, preventing them from being too dispersed. Then, according to actual needs, the hydraulic rod 44 is activated, and with the cooperation of the telescopic rod 43, the scraper group 45 is moved vertically to a suitable position. The scraper group 45 scrapes the silicone granules between the two guide plates 46 to ensure that the thickness of the raw material is consistent. This prevents the roller 57 from applying different forces due to different thicknesses, which would result in inconsistent elastic deformation and ultimately affect the thickness of the finished silicone sheet. The evenly scraped silicone granules are then transported by the conveyor belt 3 to the three calendering groups 5 in sequence, where the silicone granules are evenly calendered in sequence.

[0019] The scraper assembly 45 includes an inclined connecting plate 451. An anti-stick coating sleeve 453 is fitted onto the outer surface of the connecting plate 451 to reduce silicone residue. A symmetrically arranged screw post 454 is fixedly connected to the center of the inner cavity of the anti-stick coating sleeve 453. A symmetrically arranged connecting post 452 is fixedly connected to the upper side of the outer surface of the connecting plate 451. A symmetrically arranged mounting groove 457 is provided on the upper side of the outer surface of the connecting plate 451. Countersunk screws 455 are provided in the inner cavities of the screw post 454 and the mounting groove 457 on the same side. A connecting seat 456 is fixedly connected to the center of the upper side of the outer surface of the connecting plate 451. The upper ends of the two connecting posts 452 are fixedly connected to the lower ends of the two telescopic rods 43 respectively. The output end of the hydraulic rod 44 is movably connected to the inner cavity of the connecting seat 456.

[0020] In detail, the specific installation method, circuit connection method, and control method of the hydraulic rod 44 in this utility model are all conventional designs and are standard design techniques used by designers. The connecting plate 451 is inclined at an angle of 45°, and the outer surface of the connecting plate 451 is covered with an anti-stick coating sleeve 453. By activating the hydraulic rod 44, with the cooperation of the telescopic rod 43 and the connecting column 452, the connecting seat 456 drives the connecting plate 451 to move vertically to a suitable position, thereby allowing the anti-stick coating sleeve 453 to adhere to the silicon... When the adhesive comes into contact, it forms a gradual pressure to avoid excessive local pressure that could cause silicone to overflow. The outer surface of the anti-stick coating sleeve 453 is covered with a layer of Teflon to reduce silicone residue. In addition, by removing the countersunk screw 455, the countersunk screw 455 can be disengaged from the inner cavity of the screw hole post 454, allowing the anti-stick coating sleeve 453 to be quickly installed or removed from the connecting plate 451. This facilitates the replacement of the anti-stick coating sleeve 453 and prevents wear and tear on the anti-stick coating sleeve 453 over a long period of use, which would affect the smoothing effect of the anti-stick coating sleeve 453 on the silicone particles.

[0021] Example 2, please refer to Figure 1-3 and Figure 7 This utility model provides a technical solution: a conductive and thermally conductive silicone calendering device, wherein each of the two limiting groups 7 includes two fixed seats 71, and the lower side of the two fixed seats 71 that are symmetrically arranged front and back is provided with a sliding groove 72 at the lower side of the end that is close to each other. The inner cavity of the four sliding grooves 72 is slidably connected with a sliding plate 73. The two sliding plates 73 that are symmetrically arranged front and back are together fixedly connected to a limiting plate 76 at the lower side of the end that is close to each other. The upper side of the two fixed seats 71 that are symmetrically arranged front and back is fixedly connected with a hydraulic rod 74 in the horizontal direction. The upper side of the two fixed seats 71 that are symmetrically arranged front and back is provided with a through hole 75 at the upper side of the end that is close to each other. The output ends of the two hydraulic rods 74 on the same side pass through the inner cavity of the through hole 75 and are together fixedly connected to the limiting plate 76. The lower ends of the two fixed seats 71 that are symmetrically arranged front and back are respectively fixedly connected to the front and rear sides of the upper end of the worktable 6. The lower ends of the two limiting plates 76 are together attached to the outer surface of the conveyor belt 3.

[0022] In detail, the specific installation method, circuit connection method, and control method of the hydraulic rod 74 in this utility model are all conventional designs and are standard design methods used by designers. During the calendering process of the silicone particles by the calendering group 5, the hydraulic rod 74 on both sides is activated to drive the two limiting plates 76 to move away from or towards each other. The two limiting plates 76 are adjusted to a suitable distance to ensure that the calendered silicone fills the space between the two limiting plates 76. This avoids the silicone sheet from becoming too thin at the edges due to excessive extension during the calendering process. In addition, while the output end of the hydraulic rod 74 drives the limiting plate 76 to move through the through hole 75, the limiting plate 76 also drives the sliding plate 73 to move in the sliding groove 72. The sliding plate 73 slides in the sliding groove 72, and the output end of the hydraulic rod 74 slides in the through hole 75, making the movement between the two limiting plates 76 more stable.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conductive and heat-conductive silicone calendering apparatus comprising four legs (1), characterized in that: The upper ends of the four legs (1) are fixedly connected to a worktable (6). A conveyor belt (3) is provided in the middle of the worktable (6). A driver (2) is provided on the front right side of the worktable (6) and the front right side of the conveyor belt (3). A pre-processing mechanism (4) is provided on the upper right side of the worktable (6). Limiting groups (7) are provided on the front and rear sides of the upper end of the worktable (6). Three rolling groups (5) are fixedly connected to the upper end of the worktable (6). Each of the three rolling mill groups (5) includes a U-shaped frame two (51) fixedly connected to the upper end of the worktable (6). The three U-shaped frames two (51) have sliding grooves one (52) on both the front and rear sides of their inner cavities. The top walls of the three U-shaped frames two (51) are fixedly connected to two hydraulic rods two (54). The output ends of the two hydraulic rods two (54) on the same side and the inner cavities of the two sliding grooves one (52) are provided with sliding frames (53). Rollers (57) are rotatably connected to the inner cavities of the three sliding frames (53). Drivers two (55) are fixedly connected to the rear side of the upper end of the three sliding frames (53). Drive wheels (56) are fixedly connected to the output end of the driver two (55) on the same side and the rear side of the outer surface of the roller (57). The two drive wheels (56) on the same side are connected by belts.

2. The conductive and thermally conductive silicone calendering equipment according to claim 1, characterized in that: The pretreatment mechanism (4) includes two fixed plates (41). The upper left side of the two fixed plates (41) is provided with a U-shaped frame (42). A hydraulic rod (44) is fixedly connected to the middle of the inner top wall of the U-shaped frame (42). A telescopic rod (43) is fixedly connected to the inner top wall of the U-shaped frame (42). A scraper assembly (45) is fixedly connected to the output end of the hydraulic rod (44) and the lower ends of the two telescopic rods (43). A guide plate (46) is fixedly connected to the right side of the two fixed plates (41) that are close to each other, and the two guide plates (46) are arranged symmetrically.

3. The electrically and thermally conductive silicone calendering apparatus of claim 2, wherein: The lower ends of the two fixed plates (41) are fixedly connected to the rear right side and the front right side of the upper end of the worktable (6), respectively, and the lower ends of the two guide plates (46) are together attached to the outer surface of the conveyor belt (3).

4. The electrically and thermally conductive silicone calendering apparatus of claim 2, wherein: The scraper assembly (45) includes an inclined connecting plate (451). An anti-stick coating sleeve (453) is sleeved on the outer surface of the connecting plate (451). A front-to-back symmetrical screw hole post (454) is fixedly connected to the middle of the inner cavity of the anti-stick coating sleeve (453). A front-to-back symmetrical connecting post (452) is fixedly connected to the upper side of the outer surface of the connecting plate (451). A front-to-back symmetrical mounting groove (457) is opened on the upper side of the outer surface of the connecting plate (451). The inner cavity of the screw hole post (454) and the inner cavity of the mounting groove (457) on the same side are both provided with countersunk screws (455). A connecting seat (456) is fixedly connected to the middle of the upper side of the outer surface of the connecting plate (451).

5. The electrically and thermally conductive silicone calendering apparatus of claim 4, wherein: The upper ends of the two connecting columns (452) are fixedly connected to the lower ends of the two telescopic rods (43), and the output end of the hydraulic rod (44) is movably connected to the inner cavity of the connecting seat (456).

6. The electrically and thermally conductive silicone calendering apparatus of claim 1, wherein: Both of the limiting groups (7) include two fixed seats (71). The lower side of the two fixed seats (71) that are symmetrical in front and back is provided with a sliding groove (72) at the end that is close to each other. The inner cavity of the four sliding grooves (72) is slidably connected with a sliding plate (73). The two sliding plates (73) that are symmetrical in front and back are together fixedly connected to a limiting plate (76) at the end that is close to each other. The upper side of the two fixed seats (71) that are symmetrical in front and back is fixedly connected with a hydraulic rod (74) in the horizontal direction. The upper side of the two fixed seats (71) that are symmetrical in front and back is provided with a through hole (75). The output end of the two hydraulic rods (74) on the same side passes through the inner cavity of the through hole (75) and is together fixedly connected to the limiting plate (76).

7. The electrically and thermally conductive silicone calendering apparatus of claim 6, wherein: The lower ends of the two symmetrical fixed seats (71) are fixedly connected to the front and rear sides of the upper end of the worktable (6) respectively, and the lower ends of the two limiting plates (76) are attached to the outer surface of the conveyor belt (3).

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