Automatic slitting device for silica gel heat-conducting sheet
By designing an automatic slitting device, the guide assembly and negative pressure adsorption assembly are used to solve the problem of debris splashing during the cutting of silicone thermal sheets, and efficient and accurate automatic cutting and debris collection are achieved.
Patent Information
- Application Number
- CN202510172676.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-03-28
AI Technical Summary
The silicone thermally conductive sheet produces debris during the cutting process, resulting in a messy working environment, and the debris are easily adsorbed on the cutting blade, affecting the cutting accuracy.
An automatic slitting device is designed, including a moving seat that can move forward and backward, a vertical seat that can move up and down, and a motor-driven cutting blade. By cooperating with the guide assembly, the cutting blade moves downward for cutting, and the motor drives the blade to rotate to form a negative pressure to collect the debris generated by the cutting. After the cutting is completed, the vertical seat is moved upward and reset by the spring, and the cleaning brush is used to clean the attached debris.
It realizes automatic cutting of silicone thermal sheets, reduces debris splash, improves cutting accuracy and cleanliness of the working environment, and effectively collects and cleanses the debris produced by cutting.
Smart Images
Figure CN119704286A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of silicone sheet slitting, in particular to an automatic slitting device for silicone heat-conducting sheets. Background Art
[0002] Silicone thermal conductive sheet is usually called thermal conductive silicone sheet. It is a thermal conductive medium material that is synthesized by adding various auxiliary materials such as metal oxides and special processes with silicone as the base material. Silicone thermal conductive sheet can effectively fill the gap between the heating part and the heat dissipation part, open up the heat channel, and improve the heat transfer efficiency. Its thermal conductivity is adjustable and has good thermal conductivity stability. Therefore, silicone thermal conductive sheet is widely used in LED, power supply, communication, automobile, home appliances and other fields. Before using silicone thermal conductive sheet, it needs to be cut into the required size by cutting equipment. During the cutting process, debris will splash, resulting in a messy working environment, and some debris will also be adsorbed on the surface of the cutting blade, affecting the accurate cutting of the silicone thermal conductive sheet by the cutting blade. For this reason, we have launched an automatic cutting device for silicone thermal conductive sheet. Summary of the invention
[0003] The purpose of the present invention is to provide an automatic slitting device for silicone thermal conductive sheets to solve the problems raised in the above background technology.
[0004] To achieve the above object, the present invention provides the following technical solutions: An automatic slitting device for silicone heat-conducting sheets comprises a working frame, wherein a top seat is mounted at the front and rear ends of the top of the working frame through a standing seat, and a movable seat which can move forward and backward is arranged on the top seat; A rectangular vertical frame in the middle of the movable seat is connected to a vertical seat that can move up and down, a cutting blade driven by a motor is provided at the bottom of the vertical seat, and a negative pressure adsorption component is also provided on the vertical seat, and a cleaning brush located on both sides of the cutting blade is also provided at the bottom of the negative pressure adsorption component; When the movable seat drives the vertical seat to move forward, the guide assembly between the vertical seat and the top seat cooperates so that the vertical seat drives the cutting blade to move downward, and the pressing plates on both sides of the front part of the lower end of the vertical seat press the silicone thermal conductive sheet on the working frame, and the cutting blade cuts the silicone thermal conductive sheet at the same time; The motor drives the blades to rotate at the same time, so that negative pressure is formed inside the negative pressure adsorption component, which is used to collect the debris generated by cutting the silicone thermal conductive sheet; After the moving seat drives the vertical seat to move backward and reset, the spring arranged inside the rectangular vertical frame drives the vertical seat and the cutting blade to move upward and reset.
[0005] Preferably, the movable seat comprises a top plate and rollers movably mounted on both sides of the lower end of the top plate through vertical plates, the top of the rectangular vertical frame is fixed to the middle of the lower end of the top plate, an electric telescopic cylinder is provided at the rear of the upper end of the top seat, and a piston rod at the output end of the electric telescopic cylinder is connected to the rear end surface of the rectangular vertical frame; A limiting slot is provided in the middle of the top seat, and the bottom of the rectangular vertical frame extends through the limiting slot. Limiting slide grooves are provided on both sides of the upper end of the top seat, and the rollers are located in the corresponding limiting slide grooves.
[0006] Preferably, an end cover plate is fixed at the lower end of the rectangular vertical frame, and the top of the vertical seat penetrates the end cover plate and extends into the inner cavity inside the rectangular vertical frame, and is connected to a piston plate, which is slidably connected to the inner cavity.
[0007] Preferably, the spring is sleeved on the outer side of the top of the vertical seat, and the spring is located between the top of the end cover plate and the lower end of the piston plate.
[0008] Preferably, the guide assembly includes guide plates fixed on both sides of the lower end of the top seat and guide wheels installed through pins on both sides of the upper part of the vertical seat, and a guide slope is provided at the rear end of the guide plate. When the guide wheel rolls along the guide slope to the lower end surface of the guide plate, the vertical seat drives the cutting blade to move downward.
[0009] Preferably, the motor is mounted on a bracket on the side of the bottom of the vertical seat, and a vertical slot for installing the cutting blade is provided in the center of the bottom of the vertical seat, and the drive shaft at the output end of the motor passes through the bracket and extends into the vertical slot and is fixed to the middle of the cutting blade.
[0010] Preferably, the negative pressure adsorption assembly comprises a support seat fixed on both sides of the rear portion of the lower end of the vertical seat, an adsorption tank fixed on the upper end of the support seat, and a negative pressure cylinder fixed on the top of the adsorption tank through a conduit; The bottom of the support seat is provided with an adsorption cavity, and the adsorption tube at the top of the support seat makes the adsorption cavity connected to the bottom of the inner cavity of the adsorption tank; The blade is arranged in the negative pressure cylinder, the rotating shaft in the middle of the blade passes through and extends out of the bearing seat and is fixedly connected to the first pulley, and the connecting plate on the side of the bearing seat is fixed to the end surface of the negative pressure cylinder; A second pulley is also fixed on the driving shaft, and the second pulley is connected to the first pulley via a belt.
[0011] Preferably, the diameter of the second pulley is larger than that of the first pulley, the conduit is arranged in an L shape, and the diameter of the conduit is smaller than the diameter of the adsorption tank, and the inner diameter of the negative pressure cylinder is larger than the inner diameter of the conduit.
[0012] Preferably, the cleaning brush is fixed to the inner wall of the support seat respectively, and the cutting blade passes through between the two groups of support seats.
[0013] Preferably, the front end of the pressing plate is provided with an arc surface, and the lower end surface of the pressing plate is lower than the lower end surface of the supporting seat.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: when the movable seat of the present invention drives the vertical seat to move forward, the guide assembly between the vertical seat and the top seat cooperates, so that the vertical seat drives the cutting blade to move downward, and the pressure plates on both sides of the front of the lower end of the vertical seat press the silicone thermal conductive sheet on the working frame, and at the same time the cutting blade cuts the silicone thermal conductive sheet, and the cleaning brush sweeps the attached debris from both sides of the cutting blade; the motor drives the blades to rotate at the same time, so that negative pressure is formed inside the negative pressure adsorption assembly, which is used to collect the debris generated by cutting the silicone thermal conductive sheet; after the movable seat drives the vertical seat to move backward and reset, the spring arranged inside the rectangular vertical frame drives the vertical seat and the cutting blade to move upward and reset, and the pressure plate no longer presses the silicone thermal conductive sheet, so that the cut silicone thermal conductive sheet can be removed conveniently. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention in the initial state; Figure 2 A schematic diagram of the three-dimensional structure of the working frame, electric telescopic cylinder, L-shaped frame, top seat and silicone heat-conducting sheet of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the middle section structure; Figure 4 For the present invention Figure 2 A side view structural schematic diagram of; Figure 5 It is a schematic side view of the structure of the present invention as a whole; Figure 6 It is a schematic diagram of the overall three-dimensional structure of the movable seat, the cutting blade and the negative pressure adsorption component connected in the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of a three-dimensional structure from a second viewing angle; Figure 8 For the present invention Figure 6 A schematic diagram of a three-dimensional structure from a third perspective; Fig. 9 For the present invention Figure 8 A schematic diagram of the cross-sectional structure of the middle part; Fig.10 It is a schematic diagram of a three-dimensional structure in which a vertical seat, a cutting blade and a negative pressure adsorption component of the present invention are connected; Fig.11 For the present invention Figure 6 A schematic diagram of a three-dimensional structure from a fourth perspective; Fig.12The schematic diagram of the side structure of the position of the pressing plate and the supporting seat relative to the silicone heat-conducting sheet during cutting of the present invention.
[0016] In the figure: 1, working frame; 2, stand; 3, electric telescopic cylinder; 301, piston rod; 4, L-shaped frame; 401, reserved groove; 5, top seat; 501, limit slide groove; 502, limit slot; 6, top plate; 601, stand plate; 602, roller; 7, motor; 8, cutting blade; 9, adsorption tank; 10, silicone heat conductive sheet; 11, guide plate; 1101, guide slope; 12, rectangular vertical frame; 121, inner cavity; 13, end cover plate; 14 , vertical slot; 15, vertical seat; 16, pressure plate; 161, arc surface; 17, support seat; 171, adsorption chamber; 18, belt; 19, negative pressure cylinder; 20, blade; 21, bracket; 22, drive shaft; 23, adsorption tube; 24, guide wheel; 25, pin shaft; 26, cleaning brush; 27, spring; 28, guide tube; 29, rotating shaft; 30, first pulley; 31, bearing seat; 32, connecting plate; 33, second pulley; 34, piston plate. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example
[0018] See also Figure 1-12 , the present invention provides a technical solution: An automatic slitting device for silicone heat-conducting sheets comprises a working frame 1, a top seat 5 is mounted on the front and rear ends of the top of the working frame 1 through a stand 2, and a movable seat that can move forward and backward is provided on the top seat 5; The movable seat includes a top plate 6 and rollers 602 movably mounted on both sides of the lower end of the top plate 6 through vertical plates 601. The top of the rectangular vertical frame 12 is fixed to the middle of the lower end of the top plate 6. The rear part of the upper end of the top seat 5 is provided with an electric telescopic cylinder 3. The piston rod 301 at the output end of the electric telescopic cylinder 3 is connected to the rear end surface of the rectangular vertical frame 12. The model of the electric telescopic cylinder 3 is a CSD series electric cylinder or other models that meet the use requirements.
[0019] When the piston rod 301 of the electric telescopic cylinder 3 is extended or retracted, the movable seat is driven to move forward and backward along the top seat 5 .
[0020] A limiting slot 502 is provided in the middle of the top seat 5, and the bottom of the rectangular vertical frame 12 extends through the limiting slot 502. Limiting slots 501 are provided on both sides of the upper end of the top seat 5, and the rollers 602 are located in the corresponding limiting slots 501. This arrangement makes the moving seat move forward and backward more smoothly and stably.
[0021] A rectangular vertical frame 12 in the middle of the movable seat is connected to a vertical seat 15 that can move up and down. A cutting blade 8 driven by a motor 7 is provided at the bottom of the vertical seat 15. The motor 7 is a servo motor or other types of motors selected after comprehensive consideration based on specific needs.
[0022] The motor 7 is installed on the bracket 21 on the side of the bottom of the vertical seat 15, and a vertical slot 14 for installing the cutting blade 8 is provided in the center of the bottom of the vertical seat 15, and the driving shaft 22 at the output end of the motor 7 passes through the bracket 21 and extends into the vertical slot 14 and is fixed to the middle of the cutting blade 8.
[0023] A negative pressure adsorption component is also provided on the vertical seat 15; The negative pressure adsorption assembly includes a support seat 17 fixed on both sides of the rear portion of the lower end of the vertical seat 15, an adsorption tank 9 fixed on the upper end of the support seat 17, and a negative pressure cylinder 19 fixed on the top of the adsorption tank 9 through a conduit 28; An adsorption chamber 171 is provided at the bottom of the support seat 17, and an adsorption tube 23 at the top of the support seat 17 enables the adsorption chamber 171 to communicate with the bottom of the inner cavity of the adsorption tank 9; The blade 20 is arranged in the negative pressure cylinder 19. The rotating shaft 29 in the middle of the blade 20 extends through the bearing seat 31 and is fixedly connected to the first pulley 30. The connecting plate 32 on the side of the bearing seat 31 is fixed to the end surface of the negative pressure cylinder 19; a second pulley 33 is also fixed on the driving shaft 22, and the second pulley 33 is connected to the first pulley 30 through the belt 18.
[0024] The motor 7 drives the drive shaft 22 at its output end to rotate, and the second pulley 33 on the drive shaft 22 drives the first pulley 30 to rotate through the belt 18, and the first pulley 30 drives the blade 20 to rotate in the negative pressure cylinder 19 through the rotating shaft 29; The diameter of the second pulley 33 is greater than that of the first pulley 30, so that the blade 20 can be driven by the motor 7 to rotate at a high speed; The conduit 28 is arranged in an L shape, and the diameter of the conduit 28 is smaller than the diameter of the adsorption tank 9, and the inner diameter of the negative pressure cylinder 19 is larger than the inner diameter of the conduit 28. When the blade 20 rotates at a high degree, a negative pressure is formed in the negative pressure cylinder 19, so that the air in the adsorption chamber 171 enters the adsorption tank 9 through the adsorption tube 23. In this way, when the cutting blade 8 cuts the silicone thermal conductive sheet 10 to produce debris, the debris will enter the adsorption tank 9 through the adsorption chamber 171 and the adsorption tube 23 under the action of the negative pressure suction.
[0025] A valve plate is also provided at the leaking opening at the bottom of the adsorption tank 9. After the valve plate is opened, the debris in the adsorption tank 9 falls through the leaking opening.
[0026] The bottom of the negative pressure adsorption component is also provided with cleaning brushes 26 located on both sides of the cutting blade 8. The cleaning brushes 26 are fixed to the inner wall of the support seat 17, and the cutting blade 8 passes between the two sets of support seats 17. In this way, when the cutting blade 8 cuts the silicone thermal conductive sheet 10, the generated debris will adhere to the surface of the cutting blade 8. As the cutting blade 8 rotates, the cleaning brush 26 cleans the attached debris from both sides of the cutting blade 8.
[0027] When the moving seat drives the vertical seat 15 to move forward, the vertical seat 15 drives the cutting blade 8 to move downward through the cooperation of the guide assembly between the vertical seat 15 and the top seat 5, and the pressing plates 16 on both sides of the front part of the lower end of the vertical seat 15 press the silicone thermal conductive sheet 10 on the working frame 1, and the cutting blade 8 cuts the silicone thermal conductive sheet 10 at the same time; The guide assembly includes a guide plate 11 fixed on both sides of the lower end of the top seat 5 and a guide wheel 24 installed on both sides of the upper part of the vertical seat 15 through a pin shaft 25, and a guide slope 1101 is provided at the rear end of the guide plate 11. When the guide wheel 24 rolls along the guide slope 1101 to the lower end surface of the guide plate 11, the vertical seat 15 drives the cutting blade 8 to move downward.
[0028] The front end of the pressing plate 16 is provided with an arc surface 161, so that the pressing plate 16 presses the silicone heat-conducting sheet 10 from the top, and when cutting the silicone heat-conducting sheet 10, the pressing plate 16 moves forward relative to the silicone heat-conducting sheet 10, so that the arc surface 161 at the front end of the pressing plate 16 can smoothly flatten the upper surface of the silicone heat-conducting sheet 10; And the lower end surface of the pressing plate 16 is lower than the lower end surface of the supporting seat 17, so that when the pressing plate 16 presses the silicone thermal conductive sheet 10 from the top, a gap of a certain distance is formed between the lower end of the supporting seat 17 and the upper end surface of the silicone thermal conductive sheet 10, so that when a negative pressure is formed in the adsorption chamber 171, the debris splashed on the upper end surface of the silicone thermal conductive sheet 10 can enter the adsorption chamber 171 through the gap under the action of the negative pressure suction.
[0029] L-shaped frames 4 for placing the silicone heat-conducting sheet 10 are symmetrically arranged on both sides of the upper end of the working frame 1 . Other types of clamps can also be arranged on the L-shaped frames 4 for auxiliary clamping and fixing the silicone heat-conducting sheet 10 .
[0030] A reserved groove 401 is also provided between the two groups of L-shaped frames 4 . When the cutting blade 8 moves forward to cut the silicone heat-conducting sheet 10 , the bottom of the cutting blade 8 passes through the reserved groove 401 .
[0031] The motor 7 drives the blade 20 to rotate at the same time, so that negative pressure is formed inside the negative pressure adsorption component, which is used to collect the debris generated by cutting the silicone thermal conductive sheet 10; The end cover plate 13 is fixed at the lower end of the rectangular vertical frame 12 . The top of the vertical seat 15 passes through the end cover plate 13 and extends into the inner cavity 121 inside the rectangular vertical frame 12 . The piston plate 34 is slidably connected to the inner cavity 121 .
[0032] The spring 27 is sleeved on the top outer side of the vertical seat 15 , and the spring 27 is located between the top of the end cover plate 13 and the lower end of the piston plate 34 .
[0033] After the moving seat drives the vertical seat 15 to move backward and reset, the spring 27 provided inside the rectangular vertical frame 12 drives the vertical seat 15 and the cutting blade 8 to move upward and reset.
[0034] Specifically, when in use, the piston rod 301 of the electric telescopic cylinder 3 retracts, driving the movable seat to move backward along the top seat 5 to reset, and then the silicone heat-conducting sheet 10 is placed between the two groups of L-shaped frames 4; The motor 7 drives the drive shaft 22 at its output end to rotate, driving the cutting blade 8 to rotate. At the same time, the second pulley 33 on the drive shaft 22 drives the first pulley 30 to rotate through the belt 18. The first pulley 30 drives the blade 20 to rotate in the negative pressure cylinder 19 through the rotating shaft 29. When the blade 20 rotates at a high degree, negative pressure is formed in the negative pressure cylinder 19. The piston rod 301 of the electric telescopic cylinder 3 extends out, driving the moving seat to move forward along the top seat 5. When the guide wheel 24 on the vertical seat 15 rolls along the guide slope 1101 to the lower end surface of the guide plate 11, the vertical seat 15 drives the cutting blade 8 to move downward. The pressure plates 16 on both sides of the front of the lower end of the vertical seat 15 press the silicone heat-conducting sheet 10 on the working frame 1. At the same time, the vertical seat 15 drives the piston plate 34 to move downward along the inner cavity 121, so that the spring 27 is in a compressed state. At this time, as the cutting blade 8 continues to move forward, the cutting blade 8 cuts the silicone thermal conductive sheet 10, and the bottom of the cutting blade 8 passes through the reserved groove 401; When the cutting blade 8 cuts the silicone thermal conductive sheet 10, a portion of the generated debris falls to the upper surface of the silicone thermal conductive sheet 10 under the action of its own gravity; Another part of the debris generated will adhere to the surface of the cutting blade 8. As the cutting blade 8 rotates, the cleaning brush 26 sweeps the attached debris from both sides of the cutting blade 8 and then falls to the upper end surface of the silicone thermal conductive sheet 10. At this time, the debris splashed on the upper surface of the silicone thermal conductive sheet 10 can enter the adsorption chamber 171 through the gap between the upper surface of the silicone thermal conductive sheet 10 and the lower surface of the support seat 17 under the action of negative pressure suction, and then enter the adsorption tank 9 through the adsorption tube 23 to achieve the collection of the debris; Finally, the piston rod 301 of the electric telescopic cylinder 3 retracts, driving the movable seat to move backward along the top seat 5 to reset, and the guide wheel 24 on the vertical seat 15 rolls backward along the lower end surface of the guide plate 11 until the guide wheel 24 rolls to the rear end top of the guide slope 1101 via the guide slope 1101; At the same time, under the elastic force of the spring 27 on the piston plate 34, the piston plate 34 moves upward along the inner cavity 121, so that the vertical seat 15 drives the cutting blade 8 to move upward and reset, and the pressure plate 16 no longer presses the silicone thermal conductive sheet 10, and then the cut silicone thermal conductive sheet 10 can be removed.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic slitting device for silicone heat-conducting sheets, comprising a working frame, characterized in that: The front and rear ends of the top of the work frame are equipped with a top seat through a stand, and a movable seat that can move forward and backward is provided on the top seat; A rectangular vertical frame in the middle of the movable seat is connected to a vertical seat that can move up and down, a cutting blade driven by a motor is provided at the bottom of the vertical seat, and a negative pressure adsorption component is also provided on the vertical seat, and a cleaning brush located on both sides of the cutting blade is also provided at the bottom of the negative pressure adsorption component; When the movable seat drives the vertical seat to move forward, the guide assembly between the vertical seat and the top seat cooperates so that the vertical seat drives the cutting blade to move downward, and the pressing plates on both sides of the front part of the lower end of the vertical seat press the silicone thermal conductive sheet on the working frame, and the cutting blade cuts the silicone thermal conductive sheet at the same time; The motor drives the blades to rotate at the same time, so that negative pressure is formed inside the negative pressure adsorption component, which is used to collect the debris generated by cutting the silicone thermal conductive sheet; After the moving seat drives the vertical seat to move backward and reset, the spring arranged inside the rectangular vertical frame drives the vertical seat and the cutting blade to move upward and reset.
2. The automatic slitting device for silicone thermal conductive sheets according to claim 1, characterized in that: The movable seat comprises a top plate and rollers movably mounted on both sides of the lower end of the top plate through vertical plates, the top of the rectangular vertical frame is fixed to the middle of the lower end of the top plate, an electric telescopic cylinder is provided at the rear of the upper end of the top seat, and a piston rod at the output end of the electric telescopic cylinder is connected to the rear end surface of the rectangular vertical frame; A limiting slot is provided in the middle of the top seat, and the bottom of the rectangular vertical frame extends through the limiting slot. Limiting slide grooves are provided on both sides of the upper end of the top seat, and the rollers are located in the corresponding limiting slide grooves.
3. The automatic slitting device for silicone thermal conductive sheets according to claim 1, characterized in that: The lower end of the rectangular vertical frame is fixed with an end cover plate, the top of the vertical seat penetrates the end cover plate and extends into the inner cavity inside the rectangular vertical frame, and is connected with a piston plate, which is slidably connected to the inner cavity.
4. The automatic slitting device for silicone heat-conducting sheets according to claim 3, characterized in that: The spring is sleeved on the outer side of the top of the vertical seat, and the spring is located between the top of the end cover plate and the lower end of the piston plate.
5. The automatic slitting device for silicone heat-conducting sheets according to claim 1, characterized in that: The guide assembly includes guide plates fixed on both sides of the lower end of the top seat and guide wheels installed through pins on both sides of the upper part of the vertical seat, and a guide slope is provided at the rear end of the guide plate. When the guide wheel rolls along the guide slope to the lower end surface of the guide plate, the vertical seat drives the cutting blade to move downward.
6. The automatic slitting device for silicone heat-conducting sheets according to claim 1, characterized in that: The motor is mounted on a bracket on the side of the bottom of the vertical seat, and a vertical slot for mounting a cutting blade is provided in the center of the bottom of the vertical seat, and a driving shaft at the output end of the motor passes through the bracket and extends into the vertical slot and is fixed to the middle of the cutting blade.
7. The automatic slitting device for silicone heat-conducting sheets according to claim 6, characterized in that: The negative pressure adsorption assembly comprises a support seat fixed on both sides of the rear part of the lower end of the vertical seat, an adsorption tank fixed on the upper end of the support seat, and a negative pressure cylinder fixed on the top of the adsorption tank through a conduit; The bottom of the support seat is provided with an adsorption cavity, and the adsorption tube at the top of the support seat enables the adsorption cavity to communicate with the bottom of the inner cavity of the adsorption tank; The blade is arranged in the negative pressure cylinder, the rotating shaft in the middle of the blade passes through and extends out of the bearing seat and is fixedly connected to the first pulley, and the connecting plate on the side of the bearing seat is fixed to the end surface of the negative pressure cylinder; A second pulley is also fixed on the driving shaft, and the second pulley is connected to the first pulley via a belt.
8. The automatic slitting device for silicone heat-conducting sheets according to claim 7, characterized in that: The diameter of the second pulley is larger than that of the first pulley, the conduit is arranged in an L shape, and the diameter of the conduit is smaller than the diameter of the adsorption tank, and the inner diameter of the negative pressure cylinder is larger than the inner diameter of the conduit.
9. The automatic slitting device for silicone heat-conducting sheets according to claim 7, characterized in that: The cleaning brushes are fixed correspondingly to the inner walls of the support seats, and the cutting blades pass through between the two groups of support seats.
10. The automatic slitting device for silicone heat-conducting sheets according to claim 9, characterized in that: The front end of the pressing plate is provided with an arc surface, and the lower end surface of the pressing plate is lower than the lower end surface of the supporting seat.