Preheating device for heat-conducting silicon film production

Abstract

The utility model discloses a preheating device for heat conduction silicon film production, which comprises a bottom plate, a placing plate is arranged at the upper end of the bottom plate in a sliding manner, a heat preservation cover is arranged above the placing plate in a covering manner, a heating net is fixedly mounted at the upper end in the heat preservation cover, and limiting frames are arranged on two sides of the heat preservation cover. The two limiting frames are controlled by a limiting mechanism to be close to or away from each other, the limiting frames are movably connected with limiting plates, the limiting plates are located in the heat preservation cover, and rolling wheels are rotationally installed at the two ends of one side of each limiting plate. The placing plate is opened or closed by pushing and pulling the handle, so that the heat-conducting silicon film can be conveniently taken and placed, and heat in the heat preservation cover can be prevented from quickly losing; and when the placing plate is closed, the two limiting frames can move towards the interior of the heat preservation cover at the same time through the limiting mechanism, so that the two sets of limiting plates and rollers can push the heat-conducting silicon film to the middle of the placing plate, and the heat-conducting silicon film is heated more uniformly.

Description

Technical Field

[0001] This utility model relates to the field of thermally conductive silicone sheet production technology, specifically to a preheating device for thermally conductive silicone sheet production. Background Technology

[0002] Thermally conductive silicone sheet is an electronic thermally conductive and insulating material with a high thermal conductivity, which can effectively transfer heat, reduce thermal resistance, and improve heat dissipation efficiency. It also has good insulation properties, which can prevent short circuits and leakage, ensuring the safe operation of electronic equipment. The material is soft and has a certain degree of elasticity, which can adapt to the bonding requirements of different shapes and surfaces, effectively filling gaps. It can be used in a wide temperature range, generally withstanding temperature changes from -55℃ to 210℃. It is chemically stable, not easily corroded by chemical substances, and has good weather resistance and aging resistance. It meets environmental protection standards, is non-toxic and odorless, and poses no harm to the human body and the environment.

[0003] Chinese utility model patent CN221968662U discloses a preheating device for producing thermally conductive silicone sheets. A motor drives a long rod to rotate, which in turn moves two clamping plates towards a support, fixing the thermally conductive silicone sheet at the center of the support. This improves the heating uniformity of the heating plate and increases the yield rate. Regarding the aforementioned technology, the inventors believe it has the following drawbacks: After heating, the motor drives the two clamping plates to open, and the protective cover is also opened. However, the protective cover is fully opened, causing all the internal heat to dissipate, wasting energy. Furthermore, subsequent heating requires continuous heating from the heating plate, which takes a considerable amount of time to maintain a constant temperature inside the protective cover, affecting heating efficiency. Therefore, we propose a preheating device for producing thermally conductive silicone sheets. Utility Model Content

[0004] The purpose of this invention is to provide a preheating device for the production of thermally conductive silicone sheets, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a preheating device for the production of thermally conductive silicone sheets, comprising a base plate, a placement plate slidably disposed on the upper end of the base plate, a heat insulation cover covering the placement plate, and the lower end of the heat insulation cover being fixedly connected to the upper end of the base plate;

[0006] A heating mesh is fixedly installed inside the upper part of the heat insulation cover, and the heating mesh is located above the middle part of the placement plate.

[0007] The heat insulation cover is provided with limiting frames on both sides, and the limiting frames are slidably connected to the heat insulation cover. The two limiting frames are controlled to move closer or further apart by a limiting mechanism.

[0008] The limiting frame is movably connected to the limiting plate, and the limiting plate is located inside the heat insulation cover. Rollers are rotatably installed at both ends of one side of the limiting plate.

[0009] Preferably, the limiting frame includes an outer plate, an inner plate, and a first guide post. The outer plate and the inner plate are fixedly connected by two first guide posts. The outer plate is located outside the heat insulation cover, and the inner plate is located inside the heat insulation cover. The first guide post is slidably connected to both sides of the heat insulation cover.

[0010] Preferably, the limiting plate has two second guide posts on one side, the second guide posts are slidably connected to the inner plate, the outer side of the second guide posts is fitted with springs, the springs are located between the inner plate and the limiting plate, and the end face of the second guide posts is provided with a limiting block to prevent the limiting plate from falling off.

[0011] Preferably, the limiting mechanism includes a fixed frame fixed on both sides of the heat insulation cover, a lead screw rotatably mounted on the fixed frame, and the lead screw is threadedly connected to the outer plate. One end of the lead screw is provided with a large pulley, and rotating shafts are rotatably mounted on both sides of the heat insulation cover. One end of the rotating shaft is provided with a small pulley, and the small pulley is located outside the heat insulation cover. The small pulley is connected to the large pulley via belt drive. The other end of the rotating shaft is provided with a gear, and a rack is fixedly mounted on the bottom of the placement plate. The rack is meshed with the gear.

[0012] Preferably, the upper end of the base plate is provided with two guide rails, and the bottom of the placement plate is provided with two sliders, which are slidably connected to the guide rails.

[0013] Preferably, one end of the heat insulation cover has an opening, one end of the placement plate has a baffle for sealing the opening, and the outside of the baffle has a handle for opening the placement plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model allows the placement plate to be opened or closed via a push-pull handle, which facilitates the placement and removal of the thermally conductive silicone sheet and also keeps the inside of the insulation cover warm, preventing the rapid loss of heat from the inside of the insulation cover.

[0016] When the placement plate is closed, the limiting mechanism causes the two limiting frames to move simultaneously into the heat insulation cover, bringing the limiting plate and rollers closer to the heat-conducting silicone sheet. The two sets of rollers will contact the two sides of the heat-conducting silicone sheet respectively. If the heat-conducting silicone sheet shifts on the placement plate, the two sets of rollers can push the heat-conducting silicone sheet, pushing it to the middle of the placement plate, making the heat-conducting silicone sheet heat up more evenly. The second guide post and spring provide a buffering effect for the limiting plate, preventing the two sets of rollers from excessively squeezing the heat-conducting silicone sheet. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a rear sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 This is a partial structural diagram of the present invention. Figure 1 ;

[0021] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0022] In the diagram: 1. Base plate; 11. Guide rail; 2. Placement plate; 21. Baffle; 22. Handle; 23. Slider; 3. Insulation cover; 4. Heating grid; 5. Limiting frame; 51. Outer plate; 52. Inner plate; 53. First guide post; 6. Limiting mechanism; 61. Fixing frame; 62. Lead screw; 63. Large pulley; 64. Rotating shaft; 65. Small pulley; 66. Belt; 67. Gear; 68. Rack; 7. Limiting plate; 71. Second guide post; 72. Limiting block; 73. Spring; 8. Roller. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a preheating device for the production of thermally conductive silicone sheets, including a base plate 1, a placement plate 2 slidably disposed on the upper end of the base plate 1, two guide rails 11 disposed on the upper end of the base plate 1, and two sliders 23 disposed on the bottom of the placement plate 2, the sliders 23 being slidably connected to the guide rails 11.

[0025] A heat insulation cover 3 is provided on the top of the placement plate 2. The lower end of the heat insulation cover 3 is fixedly connected to the upper end of the bottom plate 1. One end of the heat insulation cover 3 has an opening. One end of the placement plate 2 has a baffle 21 for sealing the opening. The outside of the baffle 21 has a handle 22 for opening the placement plate 2.

[0026] A heating mesh 4 is fixedly installed inside the upper part of the heat insulation cover 3, and the heating mesh 4 is located above the middle of the placement plate 2.

[0027] In use, first pull the handle 22 outwards. The placement plate 2 slides on the guide rail 11 and is pulled out of the heat insulation cover 3. Place the heat-conducting silicone sheet to be heated on the top of the placement plate 2. Then push the handle 22 again to push the placement plate 2 back into the heat insulation cover 3. The heat-conducting silicone sheet can be heated by energizing the heating mesh 4 above the placement plate 2. The placement plate 2 can be opened or closed by pushing and pulling the handle 22, which makes it easy to put in and take out the heat-conducting silicone sheet and also keeps the inside of the heat insulation cover 3 warm, preventing the heat inside the heat insulation cover 3 from being lost quickly.

[0028] The heat insulation cover 3 is provided with limiting frames 5 on both sides, and the limiting frames 5 are slidably connected to the heat insulation cover 3. The limiting frame 5 includes an outer plate 51, an inner plate 52 and a first guide post 53. The outer plate 51 and the inner plate 52 are fixedly connected by two first guide posts 53. The outer plate 51 is located outside the heat insulation cover 3, and the inner plate 52 is located inside the heat insulation cover 3. The first guide post 53 is slidably connected to both sides of the heat insulation cover 3.

[0029] The limiting frame 5 is movably connected to the limiting plate 7, and the limiting plate 7 is located inside the heat insulation cover 3. Rollers 8 are rotatably installed at both ends on one side of the limiting plate 7. Two second guide posts 71 are provided on one side of the limiting plate 7. The second guide posts 71 are slidably connected to the inner plate 52. A spring 73 is sleeved on the outside of the second guide post 71. The spring 73 is located between the inner plate 52 and the limiting plate 7. The end face of the second guide post 71 is provided with a limiting block 72 to prevent the limiting plate 7 from falling off.

[0030] The two limiting frames 5 are controlled to move closer or further apart by the limiting mechanism 6. The limiting mechanism 6 includes a fixed frame 61 fixed on both sides of the heat insulation cover 3. The fixed frame 61 is rotatably mounted with a lead screw 62, and the lead screw 62 is threadedly connected to the outer plate 51. One end of the lead screw 62 is provided with a large pulley 63. The heat insulation cover 3 is rotatably mounted with a rotating shaft 64 on both sides. One end of the rotating shaft 64 is provided with a small pulley 65, and the small pulley 65 is located outside the heat insulation cover 3. The small pulley 65 and the large pulley 63 are connected by a belt 66. The other end of the rotating shaft 64 is provided with a gear 67. A rack 68 is fixedly mounted on the bottom of the placement plate 2, and the rack 68 is meshed with the gear 67.

[0031] During use, after the thermally conductive silicone sheet is placed on the placement plate 2, pushing the handle 22 causes the placement plate 2 to slide into the insulation cover 3 via the guide rail 11. This causes the two racks 68 at the lower end of the placement plate 2 to slide towards the insulation cover 3, rotating the two gears 67 meshing with the racks 68. This rotates the shaft 64, causing the small pulley 65 to rotate. Through the transmission of the belt 66, the large pulley 63 rotates, causing the lead screws 62 on both sides of the insulation cover 3 to rotate. Since the lead screws 62 are threadedly connected to the outer plate 51 of the limiting frame 5, both limiting frames 5 will move into the insulation cover 3 simultaneously, causing... The inner plates 52 of the two limiting brackets 5 move closer to the heat-conducting silicone sheet inside the insulation cover 3, causing the limiting plate 7 and rollers 8 to move closer to the heat-conducting silicone sheet. As the placement plate 2 continues to enter the insulation cover 3, the two sets of rollers 8 will contact the two sides of the heat-conducting silicone sheet respectively. If the heat-conducting silicone sheet shifts on the placement plate 2, the two sets of rollers 8 can push the heat-conducting silicone sheet, so that the heat-conducting silicone sheet is pushed to the middle of the placement plate 2, making the heat-conducting silicone sheet heat more evenly. The second guide post 71 and the spring 73 make the limiting plate 7 have a buffering effect, so that the two sets of rollers 8 will not excessively squeeze the heat-conducting silicone sheet.

[0032] The working principle and usage process of this utility model are as follows: When in use, first pull the handle 22 outward, and the placement plate 2 will slide on the guide rail 11 to be pulled out of the heat insulation cover 3. Place the heat-conducting silicone sheet to be heated on the upper end of the placement plate 2, and then push the handle 22 again to push the placement plate 2 back into the heat insulation cover 3. The heat-conducting silicone sheet can be heated by energizing the heating mesh 4 above the placement plate 2. The placement plate 2 can be opened or closed by pushing and pulling, which can facilitate the placement and removal of the heat-conducting silicone sheet and also keep the inside of the heat insulation cover 3 warm, preventing the heat inside the heat insulation cover 3 from being lost quickly.

[0033] During use, after the thermally conductive silicone sheet is placed on the placement plate 2, pushing the handle 22 causes the placement plate 2 to slide into the insulation cover 3 via the guide rail 11. This causes the two racks 68 at the lower end of the placement plate 2 to slide towards the insulation cover 3, rotating the two gears 67 meshing with the racks 68. This rotates the shaft 64, causing the small pulley 65 to rotate. Through the transmission of the belt 66, the large pulley 63 rotates, causing the lead screws 62 on both sides of the insulation cover 3 to rotate. Since the lead screws 62 are threadedly connected to the outer plate 51 of the limiting frame 5, both limiting frames 5 will move into the insulation cover 3 simultaneously, causing... The inner plates 52 of the two limiting brackets 5 move closer to the heat-conducting silicone sheet inside the insulation cover 3, causing the limiting plate 7 and rollers 8 to move closer to the heat-conducting silicone sheet. As the placement plate 2 continues to enter the insulation cover 3, the two sets of rollers 8 will contact the two sides of the heat-conducting silicone sheet respectively. If the heat-conducting silicone sheet shifts on the placement plate 2, the two sets of rollers 8 can push the heat-conducting silicone sheet, so that the heat-conducting silicone sheet is pushed to the middle of the placement plate 2, making the heat-conducting silicone sheet heat more evenly. The second guide post 71 and the spring 73 make the limiting plate 7 have a buffering effect, so that the two sets of rollers 8 will not excessively squeeze the heat-conducting silicone sheet.

[0034] 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 preheating device for producing thermally conductive silicone sheets, comprising a base plate (1), characterized in that: A placement plate (2) is slidably provided on the upper end of the base plate (1), and a heat insulation cover (3) is provided on the upper end of the placement plate (2). The lower end of the heat insulation cover (3) is fixedly connected to the upper end of the base plate (1). A heating mesh (4) is fixedly installed at the upper part of the inside of the heat insulation cover (3), and the heating mesh (4) is located above the middle part of the placement plate (2); The heat insulation cover (3) is provided with limiting frames (5) on both sides, and the limiting frames (5) are slidably connected to the heat insulation cover (3). The two limiting frames (5) are controlled to move closer or further apart by limiting mechanism (6). The limiting frame (5) is movably connected to the limiting plate (7), and the limiting plate (7) is located inside the heat insulation cover (3). Rollers (8) are rotatably installed at both ends of one side of the limiting plate (7).

2. The preheating device for producing thermally conductive silicone sheets according to claim 1, characterized in that: The limiting frame (5) includes an outer plate (51), an inner plate (52) and a first guide post (53). The outer plate (51) and the inner plate (52) are fixedly connected by two first guide posts (53). The outer plate (51) is located outside the heat insulation cover (3), and the inner plate (52) is located inside the heat insulation cover (3). The first guide post (53) is slidably connected to both sides of the heat insulation cover (3).

3. The preheating device for producing thermally conductive silicone sheets according to claim 2, characterized in that: Two second guide posts (71) are provided on one side of the limiting plate (7). The second guide posts (71) are slidably connected to the inner plate (52). A spring (73) is sleeved on the outside of the second guide post (71). The spring (73) is located between the inner plate (52) and the limiting plate (7). A limiting block (72) is provided on the end face of the second guide post (71) to prevent the limiting plate (7) from falling off.

4. A preheating device for producing thermally conductive silicone sheets according to claim 2, characterized in that: The limiting mechanism (6) includes a fixing frame (61) fixed on both sides of the heat insulation cover (3). The fixing frame (61) is rotatably mounted with a lead screw (62), and the lead screw (62) is connected to the outer plate (51) by a thread. One end of the lead screw (62) is provided with a large pulley (63). The two sides of the heat insulation cover (3) are rotatably mounted with a rotating shaft (64). One end of the rotating shaft (64) is provided with a small pulley (65), and the small pulley (65) is located outside the heat insulation cover (3). The small pulley (65) and the large pulley (63) are connected by a belt (66). The other end of the rotating shaft (64) is provided with a gear (67). The bottom of the placement plate (2) is fixedly mounted with a rack (68), and the rack (68) is meshed with the gear (67).

5. A preheating device for producing thermally conductive silicone sheets according to claim 1, characterized in that: The base plate (1) has two guide rails (11) on its upper end, and the placement plate (2) has two sliders (23) on its bottom. The sliders (23) are slidably connected to the guide rails (11).

6. The preheating device for producing thermally conductive silicone sheets according to claim 1, characterized in that: The heat insulation cover (3) has an opening at one end, and the placement plate (2) has a baffle (21) at one end for sealing the opening. The baffle (21) has a handle (22) on the outside for opening the placement plate (2).

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