Die cutting device for heat-conducting silica gel sheet

Abstract

The utility model provides a heat-conducting silica gel sheet die cutting device, and belongs to the technical field of heat-conducting silica gel sheet die cutting. The heat conduction silica gel sheet die cutting device comprises a die cutting mechanism and a collecting mechanism, the die cutting mechanism comprises a die cutting table, a die cutting base is connected to the center of the upper end of the die cutting table, a door-shaped frame is installed at the upper end of the die cutting table, a hydraulic cylinder is installed at the upper end of the door-shaped frame, and the output end of the hydraulic cylinder penetrates through the door-shaped frame, extends to the outside and is provided with a transverse plate; a square base is installed at the bottom end of the transverse plate, a die cutting tool is inserted into the square base, clamping grooves are formed in the two sides of the outer portion of the die cutting tool, cavities are formed in the two sides of the interior of the square base, clamping blocks are movably inserted into the pair of cavities, one end of each clamping block is in a wedge shape, and the clamping blocks and the clamping grooves are matched with each other and connected in a clamped mode. Practicality of the heat-conducting silica gel sheet die cutting device can be effectively improved, and the heat-conducting silica gel sheet die cutting device has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of die cutting of heat-conducting silica gel sheets, and more specifically, to a die cutting device for heat-conducting silica gel sheets. Background Art

[0002] A heat-conducting silica gel sheet is a heat-conducting medium material synthesized by a special process with silica gel as the base material and adding various auxiliary materials such as metal oxides. It can fill gaps, open up the heat channel between the heat-generating part and the heat-dissipating part, effectively improve the heat transfer efficiency, and at the same time play roles such as insulation, shock absorption, and sealing.

[0003] For example, a Chinese patent with the publication number CN217861718U discloses a die cutting device for heat-conducting silica gel sheets, which includes a base, guide columns, a support plate, a template, a hydraulic cylinder, a die cutting moving die, and a die cutting fixed die; one end of the base is connected to the support plate through the guide columns, the corners of the template are slidably connected to the guide columns, the hydraulic cylinder is installed at the top of the support plate, the output shaft of the hydraulic cylinder is connected to the template, and the die cutting moving die is installed at the bottom of the template through bolts. In this die cutting device for heat-conducting silica gel sheets, the slider of the linear module drives the workbench to move on the base, so that the workbench drives the die cutting fixed die thereon to move out, facilitating the placement of the heat-conducting silica gel sheet on the die cutting fixed die. Then, the linear module drives the workbench to move below the template. Under the push of the hydraulic cylinder, the die cutting moving die moves downward to be combined with the die cutting fixed die, and the heat-conducting silica gel sheet is cut under extrusion. Finally, the workbench drives the die cutting fixed die to move out;

[0004] In the actual use process of the technical solution recorded in this scheme, it is not convenient to disassemble and replace the die cutting moving die, resulting in a fixed die cutting shape. When it is necessary to perform die cutting on heat-conducting silica gel sheets with different shapes and sizes, different models of die cutting devices need to be replaced, thereby reducing the practicability of the die cutting device. Summary of the Utility Model

[0005] In order to solve the above technical problems, an embodiment of the utility model provides a die cutting device for heat-conducting silica gel sheets, which is specifically realized through the following technical solutions:

[0006] A die cutting device for heat-conducting silica gel sheets includes a die cutting mechanism and a collection mechanism. The die cutting mechanism includes a die cutting table, a die cutting seat is connected to the center of the upper end of the die cutting table, a gantry is installed at the upper end of the die cutting table, a hydraulic cylinder is installed at the upper end of the gantry, the output end of the hydraulic cylinder penetrates through the gantry and extends to the outside, and a cross plate is installed. A square seat is installed at the bottom end of the cross plate. A die cutting tool is inserted into the square seat. Clamping grooves are formed on both outer sides of the die cutting tool. Cavities are provided on both inner sides of the square seat. A clamping block is movably inserted into each of the pair of cavities. One end of the clamping block is wedge-shaped, and the clamping block is matched with and clamped to the clamping groove.

[0007] Furthermore, a pair of connecting rods are connected to the end of the engaging block away from the engaging groove. Springs are sleeved on the outer parts of the pair of connecting rods, and the two ends of each spring are respectively connected to the end of the engaging block away from the engaging groove and the inner side wall of the cavity.

[0008] The beneficial effect of adopting the above further scheme is that by arranging the hydraulic cylinder, it is convenient to realize the lifting of the cross plate, so as to facilitate the lifting of the die-cutting tool and perform die-cutting on the heat-conducting silica gel sheet in the die-cutting seat. By connecting a pair of connecting rods to one side of the engaging block and sleeving springs on the outer parts of the connecting rods, when pulling a pair of connecting rods on the same side outward from the outer part of the square seat, the engaging block will contract into the square seat and squeeze the springs, so that the engaging block is separated from the engaging groove, and then the die-cutting tool can be taken out from the inside of the square seat to achieve the purpose of disassembling and replacing the die-cutting tool. At the same time, one end of the engaging block is wedge-shaped, and the wedge-shaped end of the engaging block matches the engaging groove, so as to prevent the die-cutting tool from loosening during the die-cutting process.

[0009] Furthermore, the pair of connecting rods penetrate through the square seat and extend to the outside at the end away from the engaging block, and a pull plate is connected between the pair of connecting rods on the same side.

[0010] The beneficial effect of adopting the above further scheme is that by arranging the pull plate, the pull plate is connected between the pair of connecting rods on the same side, and there are two pull plates, so as to facilitate pulling the two pull plates outward to separate several engaging blocks from the engaging grooves.

[0011] Furthermore, a collection cavity is arranged below the inner part of the die-cutting table near the baffle. The two sides of the inner wall of the collection cavity are slidably connected with the baffle through sliding strips, and an inclined block is installed at the bottom end of the inner part of the collection cavity.

[0012] The beneficial effect of adopting the above further scheme is that by arranging the collection cavity, and the two sides of the inner wall of the collection box are both connected with sliding strips, and a baffle is connected between the pair of sliding strips. When the baffle no longer blocks the upper end of the collection cavity, it is convenient for the die-cut heat-conducting silica gel sheet to fall into the inside of the collection cavity and slide to one side of the collection cavity under the action of the inclined block, so as to facilitate the user to take out the die-cut heat-conducting silica gel sheet.

[0013] Furthermore, a hydraulic rod is connected to one side of the outer wall of the die-cutting table, and the output end of the hydraulic rod penetrates through the die-cutting table and extends into the baffle.

[0014] The beneficial effect of adopting the above further scheme is that by arranging the hydraulic rod, it is convenient to realize the movement of the baffle when the hydraulic rod works.

[0015] Further, the collecting mechanism includes a support base which is arranged on the outer side of the die-cutting table. A pair of chutes are provided at the upper end of the support base. A pair of U-shaped plates are slidably connected inside the pair of chutes. A limiting block is connected inside the pair of U-shaped plates through bearings. Connecting blocks are inserted into both of the pair of limiting blocks. A winding roller is connected between the pair of connecting blocks.

[0016] The beneficial effect of adopting the above further scheme is that by providing the chutes, it is convenient for the pair of U-shaped plates to move inside the chutes. By providing the limiting blocks and the connecting blocks, since a cross-shaped groove is provided inside the limiting block and the connecting rod is movably inserted into the limiting block, when one of the limiting blocks rotates, it is convenient to drive the connecting rod to rotate, so that the winding roller rotates.

[0017] Further, one side of the outer wall of one of the U-shaped plates is connected with a first motor, and the output end of the first motor is in transmission connection with one of the limiting blocks.

[0018] The beneficial effect of adopting the above further scheme is that by providing the first motor, when the first motor works, it is convenient for the limiting block connected to its output end to rotate inside one of the U-shaped plates under the action of the bearing.

[0019] Further, a support plate is connected between the two sides of the inner wall of the support base. The center of the upper end of the support plate is connected with a rotating shaft through a bearing. A gear is sleeved on the outer part of the rotating shaft. T-shaped sliding strips are connected to both sides of the upper end of the support plate far away from the rotating shaft. A pair of racks are slidably connected to the outer parts of the pair of T-shaped sliding strips. The two sides of the gear are respectively meshed with the pair of racks.

[0020] The beneficial effect of adopting the above further scheme is that by providing the support plate, it is convenient to install the T-shaped sliding strips and the rotating shaft. When the rotating shaft rotates, it is convenient for the gear on its outer part to rotate. Since the two sides of the gear are respectively meshed with one side of the pair of racks, the pair of racks can stably move towards each other on the T-shaped sliding strips.

[0021] Further, the upper ends of the pair of racks are respectively connected with one side of the bottom ends of the pair of U-shaped plates. A second motor is connected to the bottom end of the support plate, and the output end of the second motor is in transmission connection with the rotating shaft through a coupling.

[0022] The beneficial effect of adopting the above further scheme is that since the upper ends of the pair of racks are respectively connected with one side of the bottom ends of the pair of U-shaped plates, when the pair of racks move towards each other, it is convenient to drive the pair of U-shaped plates to move towards each other, so as to facilitate the disassembly and assembly of the winding roller. By providing the second motor, when the second motor works, it is convenient to realize the rotation of the rotating shaft.

[0023] The beneficial effects of the present utility model are as follows: A die-cutting device for thermal conductive silicone sheets obtained through the above design in the present utility model. In this die-cutting device for thermal conductive silicone sheets, by setting a hydraulic cylinder, it is convenient to realize the lifting of the cross plate, thereby facilitating the lifting of the die-cutting tool to die-cut the thermal conductive silicone sheet in the die-cutting seat. By connecting a pair of connecting rods to one side of the clamping block and sleeving a spring outside the connecting rods, when pulling a pair of connecting rods on the same side towards the outside of the square seat, the clamping block will contract towards the inside of the square seat and compress the spring, so that the clamping block is separated from the clamping groove, and then the die-cutting tool is taken out from the inside of the square seat, achieving the purpose of disassembling and replacing the die-cutting tool. At the same time, one end of the clamping block is wedge-shaped, and the wedge-shaped end of the clamping block matches the clamping groove, thus preventing the die-cutting tool from loosening during the die-cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0025] Figure 1 is a three-dimensional structural schematic diagram of a die-cutting device for thermal conductive silicone sheets provided by the present utility model;

[0026] Figure 2 is a three-dimensional structural schematic diagram of the die-cutting table of a die-cutting device for thermal conductive silicone sheets provided by the present utility model;

[0027] Figure 3 is an exploded three-dimensional structural schematic diagram of the die-cutting tool and the square seat of a die-cutting device for thermal conductive silicone sheets provided by the present utility model;

[0028] Figure 4 is a die-cutting device for thermal conductive silicone sheets provided by the present utility model Figure 3 in which the enlarged schematic diagram of structure A;

[0029] Figure 5 is an exploded three-dimensional structural schematic diagram of the collection mechanism of a die-cutting device for thermal conductive silicone sheets provided by the present utility model;

[0030] Figure 6 is a front cross-sectional structural schematic diagram of the support seat of a die-cutting device for thermal conductive silicone sheets provided by the present utility model.

[0031] In the figure: 100, die-cutting mechanism; 1001, die-cutting table; 1002, die-cutting seat; 1003, gantry; 1004, hydraulic cylinder; 1005, horizontal plate; 1006, square seat; 1007, die-cutting tool; 1008, engaging groove; 1009, engaging block; 1010, connecting rod; 1011, spring; 1012, pulling plate; 1013, baffle; 1014, hydraulic rod; 1015, collection chamber; 1016, inclined block; 200, collection mechanism; 2001, support seat; 2002, chute; 2003, U-shaped plate; 2004, limiting block; 2005, connecting block; 2006, winding roller; 2007, first motor; 2008, support plate; 2009, rotating shaft; 2010, gear; 2011, T-shaped slide bar; 2012, rack; 2013, second motor. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0033] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0034] Embodiment 1

[0035] The present utility model provides the following technical solutions: As Figures 1-6As shown in the figure, a die-cutting device for heat-conducting silica gel sheets includes a die-cutting mechanism 100 and a collection mechanism 200. The die-cutting mechanism 100 includes a die-cutting table 1001. At the center of the upper end of the die-cutting table 1001, a die-cutting seat 1002 is connected. A gantry 1003 is installed at the upper end of the die-cutting table 1001. A hydraulic cylinder 1004 is installed at the upper end of the gantry 1003. The output end of the hydraulic cylinder 1004 penetrates through the gantry 1003 and extends to the outside, and a cross plate 1005 is installed. A square seat 1006 is installed at the bottom end of the cross plate 1005. A die-cutting tool 1007 is inserted into the inside of the square seat 1006. Engagement grooves 1008 are formed on both outer sides of the die-cutting tool 1007. Cavities are provided on both inner sides of the square seat 1006. A pair of engagement blocks 1009 are movably inserted into the inside of the pair of cavities. One end of the engagement block 1009 is wedge-shaped, and the engagement block 1009 is matched with and snap-connected to the engagement groove 1008. By setting the hydraulic cylinder 1004, it is convenient to realize the lifting of the cross plate 1005, thereby facilitating the lifting of the die-cutting tool 1007 to die-cut the heat-conducting silica gel sheet in the die-cutting seat 1002. At the same time, one end of the engagement block 1009 is wedge-shaped, and the wedge-shaped end of the engagement block 1009 is matched with the engagement groove 1008, thereby preventing the die-cutting tool 1007 from loosening during the die-cutting process.

[0036] Embodiment 2

[0037] Refer to Figures 1-6As shown, a pair of connecting rods 1010 are connected to one end of the engaging block 1009 away from the engaging groove 1008. Springs 1011 are sleeved on the outer parts of the pair of connecting rods 1010. The two ends of the springs 1011 are respectively connected to the end of the engaging block 1009 away from the engaging groove 1008 and the inner side wall of the cavity. The pair of connecting rods 1010 penetrate through the square seat 1006 at the end away from the engaging block 1009 and extend to the outside. A pull plate 1012 is connected between the pair of connecting rods 1010 on the same side. A collection cavity 1015 is provided below the inner part of the die-cutting table 1001 near the baffle 1013. The two sides of the inner wall of the collection cavity 1015 are slidably connected to the baffle 1013 through sliding strips, and an inclined block 1016 is installed at the inner bottom end of the collection cavity 1015. One side of the outer wall of the die-cutting table 1001 is connected to a hydraulic rod 1014. The output end of the hydraulic rod 1014 penetrates through the die-cutting table 1001 and extends into the baffle 1013. By connecting a pair of connecting rods 1010 to one side of the engaging block 1009 and sleeving springs 1011 on the outer parts of the connecting rods 1010, when pulling the pair of connecting rods 1010 on the same side outward from the square seat 1006, the engaging block 1009 will contract into the square seat 1006 and squeeze the springs 1011, so that the engaging block 1009 is separated from the engaging groove 1008, and then the die-cutting tool 1007 can be taken out from the square seat 1006, achieving the purpose of disassembling and replacing the die-cutting tool 1007. By arranging the hydraulic rod 1014, when the hydraulic rod 1014 works, it is convenient to move the baffle 1013. When the baffle 1013 no longer blocks the upper end of the collection cavity 1015, it is convenient for the die-cut heat-conducting silica gel sheet to fall into the collection cavity 1015 and slide to one side of the collection cavity 1015 under the action of the inclined block 1016, thus facilitating the user to take out the die-cut heat-conducting silica gel sheet.

[0038] Embodiment III

[0039] Refer to Figures 1-6As shown, the collecting mechanism 200 includes a support base 2001. The support base 2001 is arranged on the outer side of the die-cutting table 1001, and a pair of sliding grooves 2002 are formed at the upper end of the support base 2001. A pair of U-shaped plates 2003 are slidably connected inside the pair of sliding grooves 2002. A limiting block 2004 is connected inside the pair of U-shaped plates 2003 through bearings. Connecting blocks 2005 are inserted into both of the pair of limiting blocks 2004. A winding roller 2006 is connected between the pair of connecting blocks 2005. One side of the outer wall of one of the U-shaped plates 2003 is connected with a first motor 2007, and the output end of the first motor 2007 is in transmission connection with one of the limiting blocks 2004. A support plate 2008 is connected between the two sides of the inner wall of the support base 2001. A rotating shaft 2009 is connected to the center of the upper end of the support plate 2008 through a bearing. A gear 2010 is sleeved on the outer part of the rotating shaft 2009. T-shaped sliding bars 2011 are connected to both sides of the upper end of the support plate 2008 away from the rotating shaft 2009. A pair of racks 2012 are slidably connected to the outer parts of the pair of T-shaped sliding bars 2011. The two sides of the gear 2010 are respectively engaged with the pair of racks 2012. The upper ends of the pair of racks 2012 are respectively connected to one side of the bottom ends of the pair of U-shaped plates 2003. A second motor 2013 is connected to the bottom end of the support plate 2008, and the output end of the second motor 2013 is in transmission connection with the rotating shaft 2009 through a coupling. By setting the second motor 2013, when the second motor 2013 works, it is convenient to realize the rotation of the rotating shaft 2009 and the rotation of the gear 2010 outside it. Since the two sides of the gear 2010 are respectively engaged with one side of the pair of racks 2012, a pair of racks 2012 can stably move towards each other on the T-shaped sliding bars 2011, so that a pair of U-shaped plates 2003 move towards each other in the sliding grooves 2002, thus facilitating the removal of the winding roller 2006.

[0040] Specifically, the working principle of this thermal conductive silicone sheet die-cutting device: When in use, first place the device close to the unwinding roller around which the un-die-cut thermal conductive silicone sheet is wound, fix one end of it on the winding roller 2006, and then by setting the hydraulic cylinder 1004, it is convenient to realize the lifting of the cross plate 1005, so as to facilitate the lifting of the die-cutting tool 1007 to die-cut the thermal conductive silicone sheet in the die-cutting seat 1002. At the same time, one end of the engaging block 1009 is wedge-shaped, and the wedge-shaped end of the engaging block 1009 matches the engaging groove 1008, so as to prevent the die-cutting tool 1007 from loosening during the die-cutting process. At the same time, start the first motor 2007, which is convenient for the limiting block 2004 connected to its output end to rotate inside one of the U-shaped plates 2003 under the action of the bearing, and drive the winding roller 2006 to rotate under the action of the connecting block 2005 to wind up the waste of the die-cut thermal conductive silicone sheet. By setting the hydraulic rod 1014, when the hydraulic rod 1014 works, it is convenient to realize the movement of the baffle 1013. When the baffle 1013 no longer blocks the upper end of the collection cavity 1015, it is convenient for the die-cut thermal conductive silicone sheet to fall into the interior of the collection cavity 1015 and slide to one side of the collection cavity 1015 under the action of the inclined block 1016, so as to facilitate the user to take out the die-cut thermal conductive silicone sheet. When it is necessary to disassemble and replace the die-cutting tool 1007, when pulling a pair of connecting rods 1010 on the same side towards the outside of the square seat 1006, the engaging block 1009 will contract towards the inside of the square seat 1006 and squeeze the spring 1011, so that the engaging block 1009 is separated from the engaging groove 1008, and then the die-cutting tool 1007 is taken out from the inside of the square seat 1006. At the same time, by starting the second motor 2013, the rotation of the rotating shaft 2009 can be realized, which is convenient for the gear 2010 on its outside to rotate. Since the two sides of the gear 2010 are respectively engaged with one side of a pair of racks 2012, a pair of racks 2012 can stably move towards each other on the T-shaped slide bar 2011, so that a pair of U-shaped plates 2003 move towards each other in the chute 2002, so as to facilitate the removal of the winding roller 2006 and process the waste on the winding roller 2006.

[0041] It should be noted that for a thermal conductive silicone sheet die-cutting device, the specific model specifications of the hydraulic cylinder 1004, the hydraulic rod 1014, the first motor 2007 and the second motor 2013 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0042] For a thermal conductive silicone sheet die-cutting device, the power supply and its principle of the hydraulic cylinder 1004, the hydraulic rod 1014, the first motor 2007 and the second motor 2013 are clear to those skilled in the art and will not be elaborated in detail here.

[0043] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A die-cutting device for heat-conducting silica gel sheets, characterized in that, It includes a die-cutting mechanism (100) and a collecting mechanism (200). The die-cutting mechanism (100) includes a die-cutting table (1001). At the center of the upper end of the die-cutting table (1001), a die-cutting seat (1002) is connected. A gantry (1003) is installed at the upper end of the die-cutting table (1001). A hydraulic cylinder (1004) is installed at the upper end of the gantry (1003). The output end of the hydraulic cylinder (1004) penetrates through the gantry (1003) and extends to the outside, and a cross plate (1005) is installed. A square seat (1006) is installed at the bottom end of the cross plate (1005). A die-cutting tool (1007) is inserted into the inside of the square seat (1006). Clamping grooves (1008) are formed on both outer sides of the die-cutting tool (1007). Cavities are provided on both inner sides of the square seat (1006). A clamping block (1009) is movably inserted into each of the pair of cavities. One end of the clamping block (1009) is wedge-shaped, and the clamping block (1009) is mutually matched and clamped with the clamping groove (1008).

2. The die-cutting device for a heat-conducting silica gel sheet according to claim 1, wherein A pair of connecting rods (1010) are connected to the end of the clamping block (1009) away from the clamping groove (1008). Springs (1011) are sleeved on the outer sides of the pair of connecting rods (1010). Both ends of the springs (1011) are respectively connected to the end of the clamping block (1009) away from the clamping groove (1008) and the inner side wall of the cavity.

3. The die-cutting device for a thermal conductive silicone sheet according to claim 2, characterized in that, The pair of connecting rods (1010) penetrate through the square seat (1006) and extend to the outside at the end away from the clamping block (1009). A pull plate (1012) is connected between the pair of connecting rods (1010) on the same side.

4. A die-cutting device for a heat-conducting silica gel sheet according to claim 3, characterized in that A collecting cavity (1015) is provided inside the die-cutting table (1001) below the baffle (1013). The two inner walls of the collecting cavity (1015) are slidably connected to the baffle (1013) through sliding strips, and an inclined block (1016) is installed at the bottom end inside the collecting cavity (1015).

5. The die-cutting device for a heat-conducting silica gel sheet according to claim 4, characterized in that, A hydraulic rod (1014) is connected to one side of the outer wall of the die-cutting table (1001). The output end of the hydraulic rod (1014) penetrates through the die-cutting table (1001) and extends to the inside of the baffle (1013).

6. The die-cutting device for a heat-conducting silica gel sheet according to claim 1, wherein The collecting mechanism (200) includes a support seat (2001). The support seat (2001) is arranged on the outer side of the die-cutting table (1001). A pair of chutes (2002) are provided at the upper end of the support seat (2001). A pair of U-shaped plates (2003) are slidably connected to the inside of the pair of chutes (2002). A limiting block (2004) is connected to the inside of the pair of U-shaped plates (2003) through bearings. A connecting block (2005) is inserted into each of the pair of limiting blocks (2004). A winding roller (2006) is connected between the pair of connecting blocks (2005).

7. A die-cutting device for a heat-conducting silica gel sheet according to claim 6, characterized in that, A first motor (2007) is connected to one side of the outer wall of one of the U-shaped plates (2003). The output end of the first motor (2007) is in transmission connection with one of the limiting blocks (2004).

8. A die-cutting device for a heat-conducting silica gel sheet according to claim 7, characterized in that, A support plate (2008) is connected between the two sides of the inner wall of the support base (2001). A rotating shaft (2009) is connected to the center of the upper end of the support plate (2008) through a bearing. A gear (2010) is sleeved on the outside of the rotating shaft (2009). T-shaped sliding strips (2011) are connected to both sides of the upper end of the support plate (2008) far away from the rotating shaft (2009). A rack (2012) is slidably connected to the outside of each of the pair of T-shaped sliding strips (2011). The two sides of the gear (2010) are respectively meshed with the pair of racks (2012).

9. The die-cutting device for a heat-conducting silica gel sheet according to claim 8, wherein, The upper ends of the pair of racks (2012) are respectively connected to one side of the bottom ends of the pair of U-shaped plates (2003). A second motor (2013) is connected to the bottom end of the support plate (2008). The output end of the second motor (2013) is in transmission connection with the rotating shaft (2009) through a coupling.

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