A thermal conductive silicone sheet fixed length cutting device

Abstract

The present invention relates to the field of cutting technology, specifically to a fixed-length cutting device for thermally conductive silicone sheets, comprising: a frame fixedly connected to a machine body; a mounting frame slidably connected to the front and rear sides of the frame, an opening being arranged on the mounting frame on one side facing the frame; a spring A fixedly connected between the mounting frame and the frame; a processing knife slidably connected to the opening of the mounting frame, at least five processing knives being arranged on the front and rear mounting frames; and a spring B fixedly connected between the processing knife and the mounting frame. The present invention solves the problem of residual debris affecting the cutting knife by arranging a processing knife to process the residual debris on the cutting knife, thereby improving the cutting quality of the thermally conductive silicone sheet of the present invention; the present invention divides the processing range of the processing knife into parts, reduces the influence of the reaction of the residual debris on the processing knife, ensures the processing effect of the processing knife, and enables each processing knife to be replaced independently, thereby reducing the maintenance cost.

Description

Technical Field

[0001] The invention relates to the field of cutting technology, in particular to a device for cutting a thermally conductive silicone sheet to a fixed length. Background Art

[0002] Thermally conductive silicone sheet is a thermal management material with excellent thermal conductivity. It can effectively dissipate heat for various heat-generating components of electronic equipment. In addition, its thermal conductivity can be adjusted according to demand to meet the needs of electronic equipment in different application scenarios. Therefore, as an efficient and reliable thermal conductive medium material, thermally conductive silicone sheet plays a very important role in the electronics industry.

[0003] The production process of thermal conductive silicone sheets includes raw material mixing, raw material molding, raw material baking, and processing testing. At this time, the thermal conductive silicone sheet is in the form of a whole sheet. Therefore, after the thermal conductive silicone sheet is produced, it needs to be accurately cut according to the size and shape of the electronic equipment to be assembled.

[0004] However, when using cutting equipment to cut the thermally conductive silicone sheet, since the thermally conductive silicone sheet is soft and has a certain degree of stickiness, the blades on the cutting equipment are prone to residual debris after repeated use. As the number of cutting times increases, these residual debris will gradually accumulate, thereby affecting the cutting effect of the blade, causing the thermally conductive silicone sheet to stick together due to incomplete cutting, affecting the cutting quality of the thermally conductive silicone sheet. Summary of the invention

[0005] In view of the problem of poor production quality in the prior art, the present invention proposes a fixed-length cutting device for thermally conductive silicone sheets that can process residual scraps to ensure the cutting effect of a blade, aiming to improve the cutting quality of the thermally conductive silicone sheets.

[0006] A device for cutting thermally conductive silicone sheets to fixed lengths comprises: a machine body; a cutting knife fixedly connected to the machine body, the cutting knife being controlled to move up and down by the machine body; a movable seat fixedly connected to the machine body; a table plate slidably connected to the movable seat, the cutting knife and the table plate cooperate to cut the thermally conductive silicone sheets, the table plate being controlled to move forward and backward by the movable seat; further comprising: a frame fixedly connected to the machine body, the frame being located below the cutting knife, the frame being capable of allowing the cutting knife to pass through; a mounting frame slidably connected to the front and rear sides of the frame, the mounting frame being provided with an opening on a side facing the frame; a spring A fixedly connected between the mounting frame and the frame; a processing knife slidably connected to the opening of the mounting frame, at least five processing knives being provided on each of the front and rear mounting frames to divide the processing range of the processing knife from the whole; and a spring B fixedly connected between the processing knife and the mounting frame.

[0007] As a further limitation of the technical solution, the front and rear installation frames are arranged with a height offset.

[0008] As a further limitation of the present technical solution, the lower surface of the processing knife is configured to be an upwardly concave arc.

[0009] As a further limitation of the technical solution, it also includes: a control arm slidably connected to the front and rear sides of the frame, the control arm is fixedly connected to the front and rear mounting frames respectively; a double-bevel block slidably connected to the frame, the bevel of the double-bevel block contacts the control arm; a reciprocating screw rotatably connected to the frame, the reciprocating screw is threadedly connected to the double-bevel block; a ratchet gear fixedly connected to the reciprocating screw; a moving frame fixedly connected to the cutting knife, the position of the moving frame corresponds to the position of the ratchet gear; a ratchet plate slidably connected to the moving frame, the ratchet plate is meshed with the ratchet gear, and a spring E is connected between the ratchet plate and the moving frame.

[0010] As a further limitation of the technical solution, it also includes: a spring C fixedly connected between the frame and the double-slope block.

[0011] As a further limitation of the technical solution, it also includes: a separation plate slidably connected to the body, the separation plate is located below the frame, and the separation plate can allow the cutting knife to pass through; a stop block is arranged on the separation plate, and a distance equal to the thickness of the thermal conductive silicone sheet is set between the lower surface of the stop block and the lower surface of the separation plate; a connecting block fixedly connected to the cutting knife; and a spring D fixedly connected between the connecting block and the separation plate.

[0012] As a further limitation of the technical solution, the stop block is slidably connected to the separation plate, and further includes: an adjusting screw rotatably connected to the separation plate, and the stop block is threadedly connected to the adjusting screw.

[0013] As a further limitation of the technical solution, it also includes: rotating a tray connected to the table top; and fixing a motor B to the bottom of the moving seat, wherein the output end of the motor B is fixed to the tray.

[0014] The beneficial effects of the present invention are as follows: the present invention solves the problem of residual debris affecting the cutting knife by arranging a processing knife, thereby improving the cutting quality of the thermally conductive silicone sheet of the present invention; the present invention divides the processing range of the processing knife into parts, thereby reducing the impact of the reaction of residual debris on the processing knife, ensuring the processing effect of the processing knife, and enabling each processing knife to be replaced independently, thereby reducing maintenance costs; the present invention avoids collision damage between the processing knives on the front and rear sides by arranging a height offset between the processing knives on the front and rear sides.

[0015] The present invention provides a double-bevel block capable of controlling the rotation and opening and closing of the processing knives, so that the cutting knife can smoothly pass through the processing knives on the front and rear sides, avoiding the processing knife being controlled to be separated by the cutting knife, reducing the contact force between the processing knife and the cutting knife and reducing unnecessary friction, thereby reducing unnecessary loss of the processing knife; the present invention maintains the position stability of the double-bevel block by providing a spring C, and improves the accuracy of the double-bevel block in controlling the movement of the processing knife by ensuring the precise cooperation between the ratchet gear and the pawl plate.

[0016] The present invention provides a separation plate capable of separating the cutting knife and the thermally conductive silicone sheet, thereby preventing the thermally conductive silicone sheet from being displaced by the cutting knife, thereby avoiding affecting the accuracy of subsequent cutting of the thermally conductive silicone sheet, thereby improving the cutting quality of the present invention.

[0017] The present invention changes the angular position of the heat-conducting silicone sheet by arranging a tray, so that the heat-conducting silicone sheet can be conveniently changed in direction, thereby improving the use of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a partial cross-sectional view of the present invention.

[0020] Figure 3 It is a cross-sectional view of the connection structure of the machine body, cutting knife, movable seat and table in the present invention.

[0021] Figure 4 It is a cross-sectional view of the position structure of the cutting knife and the processing knife in the present invention.

[0022] Figure 5 It is a cross-sectional view of the connection structure of the frame, the mounting frame and the processing knife in the present invention.

[0023] Figure 6 It is a cross-sectional view of the connection structure between the control arm and the mounting frame, and between the cutting knife and the moving frame in the present invention.

[0024] Figure 7 It is a schematic diagram of the matching structure of the control arm and the double inclined surface block in the present invention.

[0025] Figure 8 It is a schematic diagram of the connection structure between the separation plate and the cutting knife in the present invention.

[0026] Fig. 9 This is a separation diagram of the connection structure between the adjusting screw and the stop block in the present invention.

[0027] Fig.10 It is a schematic diagram of the connection structure of the tray in the present invention.

[0028] The symbols in the attached drawings are: 11-body, 1101-support frame A, 1102-electric telescopic rod, 12-cutting knife, 13-moving seat, 1301-support frame B, 1302-control screw, 1303-motor A, 1304-transmission group A, 14-table, 21-frame, 2101-guide groove, 22-installation frame, 2201-guide rod A, 23-spring A, 24-processing knife, 25 -spring B, 31-control arm, 32-double bevel block, 3201-guide rod B, 33-reciprocating screw, 3301-support plate, 34-ratchet gear, 35-moving frame, 36-pawl plate, 37-spring C, 41-separation plate, 4101-guide rod C, 42-adjusting screw, 43-block, 44-transmission group B, 45-connecting block, 46-spring D, 51-tray, 52-motor B. DETAILED DESCRIPTION

[0029] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects of the present invention, the following is a detailed description in combination with the specific embodiments listed and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention.

[0030] Embodiment: A thermally conductive silicone sheet cutting device, combined with Figure 1-Figure 3 , including: a body 11; a cutting knife 12 fixedly mounted on the body 11, the cutting knife 12 is controlled to move up and down by the body 11; a moving seat 13 fixedly mounted on the body 11, the moving seat 13 is located below the cutting knife 12; a table 14 slidably mounted on the moving seat 13, the thermal conductive silicone sheet is placed on the table 14, the cutting knife 12 moves downward and will abut against the table 14, then the two can cooperate with each other to cut the thermal conductive silicone sheet, the table 14 is controlled by the moving seat 13 to move forward and backward, so as to accurately control the thermal conductive silicone sheet to move a specified distance, that is, by changing the position between the thermal conductive silicone sheet and the cutting knife 12, the fixed-length cutting function of the thermal conductive silicone sheet by the device is realized.

[0031] Combination Figure 3 The body 11 is composed of a support frame A1101 and an electric telescopic rod 1102. The electric telescopic rod 1102 is fixedly installed on the support frame A1101. The end of the rod of the electric telescopic rod 1102 is fixed to the cutting knife 12. The rod of the electric telescopic rod 1102 is extended and retracted to control the up and down movement of the cutting knife 12. A main control panel for controlling the electric telescopic rod 1102 is set on the support frame A1101.

[0032] Combination Figure 3The movable seat 13 is composed of a support frame B1301, a control screw 1302, a motor A1303 and a transmission group A1304. The support frame B1301 is fixedly installed with the support frame A1101. Two control screws 1302 are provided, which are rotatably installed on the left and right sides of the support frame B1301 respectively. The two control screws 1302 are both threadedly installed with the table plate 14. The motor A1303 is fixedly installed on the support frame B1301, and the output end of the motor A1303 is fixed with one of the control screws 1302. The transmission group A1304 is installed between the two control screws 1302. The motor A1303 drives the two control screws 1302 to rotate synchronously forward and reverse through the transmission group A1304, and the table plate 14 moves forward and backward. The motor A1303 is controlled by the main control panel on the support frame A1101.

[0033] Combination Figure 1 , Figure 2 , Figure 4 and Figure 5 , further comprising: a frame 21 fixedly mounted on the machine body 11, the frame 21 being located below the cutting knife 12, the frame 21 being capable of allowing the cutting knife 12 to pass through; a mounting frame 22 slidably mounted on the front and rear sides of the frame 21, an opening being arranged on the side of the mounting frame 22 facing the frame 21, and the height of the front and rear mounting frames 22 being staggered; guide grooves 2101 respectively fixedly mounted on the front and rear sides of the left and right ends of the frame 21, the guide grooves 2101 being arranged in four numbers; guide rods A2201 respectively fixedly mounted on the two ends of the two mounting frames 22, the guide rods A2201 being arranged in four numbers, each guide rod A2201 being slidably mounted in each guide groove 2101 correspondingly, so that The mounting frame 22 can stably move relative to the frame body 21; a spring A23 is sleeved on each guide rod A2201, and the two ends of the spring A23 are respectively fixed to the guide groove 2101 and the guide rod A2201; a processing knife 24 is slidably mounted at the opening of the mounting frame 22, and the processing knife 24 is used to scrape off the residual debris on the cutting knife 12. The lower surface of the processing knife 24 is set to be an upward concave arc. Fifty processing knives 24 are arranged on each mounting frame 22 to divide the processing range of the processing knife 24 from the whole; a spring B25 is fixedly mounted between the processing knife 24 and the mounting frame 22, and the spring B25 is used to bring the processing knife 24 close to the cutting knife 12.

[0034] The processing knife 24 is pressed against the front and rear sides of the cutting knife 12 by the action of the spring A23 and the spring B25. The spring A23 controls the processing knife 24 as a whole, and the spring B25 controls each processing knife 24 independently. Therefore, the cutting knife 12 moves upward and returns to its original position after cutting the thermally conductive silicone sheet. When a relative displacement occurs between the cutting knife 12 and the processing knife 24, the processing knife 24 moves downward relative to the cutting knife 12 to scrape off the residual debris attached to the cutting knife 12, thereby solving the factor of residual debris that affects the cutting function of the cutting knife 12, thereby improving the The cutting quality of the thermally conductive silicone sheet of the device is improved; the processing knives 24 are set to process the cutting knife 12 independently, which is intended to reduce the influence of the residual debris on the processing knife 24. For example, when a certain position on the cutting knife 12 has relatively stubborn residual debris that cannot be completely processed in a single time, then the device is set so that only the processing knife 24 corresponding to the position of the residual debris is affected by the residual debris, while the processing knives 24 at the remaining positions can still process the remaining normal residual debris, thereby achieving the effect of reducing The influence of the reaction of the residual debris is reduced, the processing effect of the processing knife 24 is guaranteed, and when the local processing knife 24 is damaged, the equipment can replace the processing knife 24 independently, that is, the equipment can reduce the maintenance cost while ensuring the cutting quality of the cutting knife 12; the arc-shaped lower surface of the processing knife 24 is set to provide space for the processed residual debris. During the contact process between the processing knife 24 and the cutting knife 12, the residual debris is transferred to the space below the processing knife 24. Due to the surplus space, the residual debris does not squeeze each other and is not easy to be cut from above The processing knives 24 do not fall from the processing knife 24 onto the thermally conductive silicone sheet, but can be uniformly processed after the use of the equipment to avoid residual debris falling on the thermally conductive silicone sheet and causing negative effects; the height misalignment of the front and rear rows of processing knives 24 is intended to make the processing knives 24 not contact each other in the natural state without contacting the cutting knife 12, that is, when the cutting knife 12 is separated from the processing knife 24 and the spring A23 and the spring B25 restore the processing knife 24, the equipment can avoid damage between the processing knives 24.

[0035] Combination Figure 1 , Figure 2 , Figure 6 and Figure 7, further comprising: control arms 31 slidably mounted on the front and rear ends of the left and right ends of the frame 21, four control arms 31 being provided, and the four control arms 31 being fixed to the left and right ends of the two mounting frames 22 respectively; guide rods B3201 fixedly mounted on the left and right ends of the frame 21; double-bevel blocks 32 slidably mounted on the two guide rods B3201 respectively, the bevels of the double-bevel blocks 32 being arranged at the front and rear sides thereof, and the bevels on both sides of the two double-bevel blocks 32 being in contact with the four control arms 31 respectively; support plates 3301 fixedly mounted on the left and right ends of the frame 21; a reciprocating screw 33 rotatably mounted between the frame 21 and the support plate 3301, two reciprocating screws 33 being provided, respectively located at the left and right ends of the frame 21, and the two reciprocating screws 33 being respectively in contact with the two double The inclined plane block 32 is threadedly connected, and the reciprocating screw 33 controls the reciprocating left and right movement of the double inclined plane block 32; the ratchet gears 34 are respectively fixedly mounted on each reciprocating screw 33; the moving frame 35 is fixedly mounted on the left and right ends of the cutting knife 12, and the position of the moving frame 35 corresponds to the position of the ratchet gear 34; the ratchet plate 36 is slidably mounted on the moving frame 35, the ratchet plate 36 is engaged with the ratchet gear 34, and the length of the ratchet plate 36 will drive and control the double inclined plane block 32 to move back and forth left and right once, and a reset spring E is connected between the ratchet plate 36 and the moving frame 35; the spring C37 is sleeved on the reciprocating screw 33, and the two ends of the spring C37 are respectively fixed to the support plate 3301 and the double inclined plane block 32, and the spring C37 is used to limit the position of the double inclined plane block 32.

[0036] When the cutting knife 12 moves down to cut the thermally conductive silicone sheet, the cutting knife 12 will drive the moving frame 35 to move down together. The moving frame 35 moves down to control the rotation of the ratchet gear 34 through the pawl plate 36. The ratchet gear 34 then drives the reciprocating screw 33 to rotate together, so that the double bevel block 32 is controlled to move left and right once. In this process, the movement path of the double bevel block 32 is divided into two stages. Stage 1: The double bevel block 32 moves in the direction of the control arm 31, and the control arms 31 are separated from each other. The control arms 31 drive the two mounting frames 22 and the processing knives 24 thereon to separate from each other. In this way, the cutting knife 12 can move down to smoothly pass through the processing knives 24 on both sides without contacting the processing knives 24. Stage 2: The double bevel block 32 moves in the direction away from the control arm 31, and the spring A23 resets the mounting frame 22, so that the processing knife 24 is attached to the cutting knife. 12, spring B25 is compressed; in this way, in the subsequent upward movement of the moving frame 35, the ratchet gear 34 squeezes the ratchet plate 36 to slide in the direction of the moving frame 35, the spring E is compressed, and the ratchet gear 34 cannot be rotated by the ratchet plate 36, so that the processing knife 24 remains close to the cutting knife 12 and can process the residual debris attached to the cutting knife 12; therefore, the equipment is configured to automatically open and close the processing knife 24 to avoid the processing knife 24 being controlled to be separated by the cutting knife 12, reduce the contact force between the processing knife 24 and the cutting knife 12 and reduce unnecessary friction, thereby reducing unnecessary loss of the processing knife 24; the spring C37 is used to maintain the position stability of the double bevel block 32, and improve the accuracy of the double bevel block 32 in controlling the movement of the processing knife 24 by ensuring the precise cooperation between the ratchet gear 34 and the ratchet plate 36.

[0037] Combination Figure 1 , Figure 2 , Figure 8 and Fig. 9 , and also includes: a guide rod C4101 fixedly mounted on both sides of the machine body 11; a separation plate 41 slidably mounted between the guide rods C4101, the separation plate 41 is located below the frame 21, and the separation plate 41 can allow the cutting knife 12 to pass through; an adjusting screw 42 rotatably mounted on the separation plate 41, four adjusting screws 42 are provided, and are respectively arranged on both sides of the separation plate 41; a stop block 43 slidably mounted on the separation plate 41, four stop blocks 43 are provided, and are respectively arranged on both sides of the separation plate 41, each stop block 43 is respectively threadedly mounted with each adjusting screw 42, so that each stop block 43 is controlled to move up and down by each adjusting screw 42; a transmission group B44 installed between two adjusting screws 42 on the same side of the separation plate 41, and the transmission group B44 enables the two adjusting screws 42 to rotate synchronously; a connecting block 45 fixedly mounted on the left and right ends of the cutting knife 12; a spring D46 fixedly mounted between the connecting block 45 and the separation plate 41.

[0038] First, the adjusting screw 42 is turned to uniformly adjust the relative position between the stop block 43 and the separation plate 41, so that the distance between the lower surface of all the stop blocks 43 and the lower surface of the separation plate 41 is the thickness of the thermally conductive silicone sheet. In this way, after the stop block 43 contacts the table 14, the distance between the separation plate 41 and the bracket of the table 14 is the thickness of the thermally conductive silicone sheet, that is, the lower surface of the separation plate 41 contacts the upper surface of the thermally conductive silicone sheet without squeezing the thermally conductive silicone sheet. Then, when the cutting knife 12 moves down for cutting, the connecting block 45 first moves the separation plate 41 down through the spring D46, so that the separation plate 41 The cutting knife 12 is then moved downwards, and the spring D46 is compressed. After the cutting is completed, the cutting knife 12 is moved upwards. First, the spring D46 is restored, and the separation plate 41 is not separated from the table 14 temporarily, so the thermally conductive silicone sheet can be blocked by the separation plate 41, thereby preventing the thermally conductive silicone sheet from being dragged by the cutting knife 12, thereby preventing the position of the thermally conductive silicone sheet from being shifted and affecting the subsequent cutting accuracy of the thermally conductive silicone sheet, thereby ensuring the cutting quality of the equipment. Finally, after the spring D46 is restored, the cutting knife 12 is moved upwards by the spring D46 to reset the separation plate 41.

[0039] Combination Figure 1 and Fig.10 , and also includes: a tray 51 rotatably mounted on the table 14, the tray 51 is embedded in the table 14, and its upper surface is flush with the upper surface of the table 14; a motor B52 is fixedly mounted on the bottom of the moving seat 13, the output end of the motor B52 is fixed to the tray 51, and the rotation of the tray 51 is controlled by the main control panel on the support frame A1101.

[0040] When the thermally conductive silicone sheet is placed on the tray 51, the rotation of the tray 51 can drive the thermally conductive silicone sheet to rotate at any angle, thereby realizing free reversal of the thermally conductive silicone sheet and facilitating the reversal of the thermally conductive silicone sheet by the device.

[0041] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A thermally conductive silicone sheet cutting device, comprising: A machine body (11); a cutting knife (12) fixedly connected to the machine body (11), the cutting knife (12) being controlled to move up and down by the machine body (11); a moving seat (13) fixedly connected to the machine body (11); a table (14) slidably connected to the moving seat (13), the cutting knife (12) and the table (14) cooperate to cut the thermal conductive silicone sheet, and the table (14) is controlled to move forward and backward by the moving seat (13); the machine body also includes: a frame (21) fixedly connected to the machine body (11), the frame (21) is located below the cutting knife (12), and the frame (21) can allow the cutting knife (12) to pass through; slidingly connected to the front and rear sides of the frame (21); An installation frame (22), the installation frame (22) having an opening on one side facing the frame body (21); a spring A (23) fixedly connected between the installation frame (22) and the frame body (21); a processing knife (24) slidably connected to the opening of the installation frame (22), the processing knife (24) being used to scrape off residual scraps on the cutting knife (12), and at least five processing knives (24) are provided on the front and rear installation frames (22) to divide the processing range of the processing knife (24) from the whole; a spring B (25) fixedly connected between the processing knife (24) and the installation frame (22), the spring B (25) being used to bring the processing knife (24) close to the cutting knife (12); The height between the front and rear mounting frames (22) is staggered; The lower surface of the processing knife (24) is arranged to be an upward concave arc; The invention also comprises: a control arm (31) slidably connected to the front and rear sides of the frame (21), the control arm (31) being fixedly connected to the front and rear mounting frames (22) respectively; a double bevel block (32) slidably connected to the frame (21), the bevel of the double bevel block (32) being in contact with the control arm (31), so that the movement of the double bevel block (32) is converted into the movement of the mounting frame (22); a reciprocating screw (33) rotatably connected to the frame (21), the reciprocating screw (33) being threadedly connected to the double bevel block (32) to control the movement of the double bevel block (32). ) reciprocating left and right; a ratchet gear (34) fixedly connected to the reciprocating screw (33); a moving frame (35) fixedly connected to the cutting knife (12), the position of the moving frame (35) corresponding to the position of the ratchet gear (34); a ratchet plate (36) slidably connected to the moving frame (35), the ratchet plate (36) meshing with the ratchet gear (34), the length of the ratchet plate (36) drives the control double bevel block (32) to perform a reciprocating movement, and a spring E for reset is connected between the ratchet plate (36) and the moving frame (35).

2. The thermally conductive silicone sheet cutting device according to claim 1, characterized in that: Also includes: A spring C (37) is fixedly connected between the frame (21) and the double-slope block (32), and the spring C (37) is used to limit the position of the double-slope block (32).

3. The thermally conductive silicone sheet cutting device according to claim 2, characterized in that: Also includes: A separation plate (41) slidably connected to the machine body (11), the separation plate (41) being located below the frame (21), and the separation plate (41) being capable of allowing the cutting knife (12) to pass through; a stop block (43) arranged on the separation plate (41), a distance between the lower surface of the stop block (43) and the lower surface of the separation plate (41) being equal to the thickness of the heat-conducting silicone sheet; a connection block (45) fixedly connected to the cutting knife (12); and a spring D (46) fixedly connected between the connection block (45) and the separation plate (41).

4. The thermally conductive silicone sheet cutting device according to claim 3, characterized in that: The stop block (43) is slidably connected to the separation plate (41), and further comprises: an adjusting screw (42) rotatably connected to the separation plate (41), the stop block (43) being threadedly connected to the adjusting screw (42), and the stop block (43) is controlled to move up and down by the adjusting screw (42).

5. The thermally conductive silicone sheet cutting device according to claim 4, characterized in that: Also includes: A tray (51) is rotatably connected to a table (14); and a motor B (52) is fixedly connected to the bottom of a movable seat (13), wherein an output end of the motor B (52) is fixed to the tray (51) to control the rotation of the tray (51).

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