Thermal insulation silica gel mold forming device

Abstract

The application discloses a kind of heat insulation silica gel mould pressing forming device, applied in heat insulation silica gel processing technical field, including mould pressing table, the top of mould pressing table is separately provided with first lower mould and second lower mould, first lower mould and second lower mould are symmetrically provided with first upper mould and second upper mould respectively on the side away from each other, first upper mould and second upper mould are bolted with the connecting rod of the sliding connection of first lower mould and second lower mould respectively penetrating between them. By opening flip mechanism, it is driven to reciprocate alternately 180 ° between first lower mould and first upper mould and second lower mould and second upper mould simultaneously flips;Simultaneously drive high-temperature temperature-guiding oil to be switched to the internal flow passage of mould in current top heating station, and low-temperature temperature-guiding oil is switched to the internal flow passage of mould in current bottom cooling station. Further realize the double-station alternate operation processing of heating vulcanization and cooling pick-up, improve heat insulation silica gel mould pressing forming efficiency.

Description

Technical Field

[0001] This invention belongs to the field of heat-insulating silicone processing technology, and specifically relates to a heat-insulating silicone molding apparatus. Background Technology

[0002] Thermal insulation silicone is a type of silicone rubber product with low thermal conductivity that can block heat transfer. It is usually made with room temperature vulcanized silicone rubber as the base material and added with thermal insulation fillers such as alkali-free ultrafine glass wool and fumed silica.

[0003] Currently, the general molding process for heat-insulating silicone is as follows: first, the raw material is injected into the mold cavity and then the mold is closed. The mold is heated to the vulcanization temperature by circulating the oil through the heating tube or high-temperature oil circuit in the mold channel, and the temperature is maintained for a period of time to allow the silicone to cross-link and solidify. After vulcanization is completed, heating is stopped, and then the mold and product are cooled by injecting cooled low-temperature oil into the mold channel. The mold can be opened and the product can be removed after the product has cooled and solidified.

[0004] During this process, when workers remove the shaped heat-insulating silicone, they also need to clean the residual debris inside the mold to prevent it from affecting subsequent processing. This takes a considerable amount of time, during which the mold is in a waiting state and cannot be heated and vulcanized, thus reducing overall production efficiency. Furthermore, heating and cooling are performed sequentially within the same mold or workstation, and the cooling stage cannot simultaneously heat and vulcanize another molded product. This results in a low percentage of effective equipment working time and limited efficiency in heat-insulating silicone molding. Summary of the Invention

[0005] The purpose of this invention is to provide a heat-insulating silicone molding device, which has the advantage of driving two sets of molds to repeatedly flip up and down to open and close, thereby realizing the dual-station alternating operation of heating and vulcanization and cooling and part removal, thus improving the efficiency of heat-insulating silicone molding.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a heat-insulating silicone molding apparatus, comprising a molding table, wherein a first lower mold and a second lower mold are respectively provided on the top of the molding table, and a first upper mold and a second upper mold are respectively symmetrically provided on the side of the first lower mold and the second lower mold that are far apart from each other, and a connecting rod that is bolted to the first upper mold and the second upper mold and respectively slidably connected through the first lower mold and the second lower mold, and a flipping mechanism and a mold opening and closing mechanism that cooperate with the first lower mold and the second lower mold are installed inside the molding table.

[0007] The above technical solution involves simultaneously rotating the first lower mold, the first upper mold, and the second lower mold and the second upper mold 180° by activating the flipping mechanism. This allows the first lower mold and the first upper mold to rotate to the top and be pressed together by the mold opening and closing mechanism for glue injection, while the second lower mold and the second upper mold are simultaneously flipped to the bottom and opened. This provides sufficient time for workers to remove the heat-insulating silicone inside the second lower mold and the second upper mold and to clean any remaining silicone debris, preventing interference with subsequent processing. The flipping mechanism reciprocates by rotating the first lower mold, the first upper mold, and the second lower mold and the second upper mold 180° in both directions. After the heat-insulating silicone inside the first lower mold and the first upper mold has been heated and vulcanized, it is flipped to the bottom for cooling and shaping, while the second lower mold and the second upper mold are flipped to the top. At this point, the first lower mold and the first upper mold are opened by the mold opening and closing mechanism, while the interiors of the second lower mold and the second upper mold are pressed together. This allows for the injection and heating of the silicone sealant inside the second lower mold and the second upper mold. Meanwhile, the operator can remove the heat-insulating silicone sealant from the opened first lower mold and the first upper mold and clean any remaining silicone sealant debris. The two sets of molds repeatedly open and close in this manner, allowing the operator to clean the molds without interrupting the normal molding process of the heat-insulating silicone sealant. During the flipping process, as the first lower mold and the first upper mold, as well as the second lower mold and the second upper mold, are flipped to the top, the high-temperature heat-conducting oil is simultaneously switched to the flow channels inside the first lower mold and the first upper mold, which are currently in the top heating position, while the low-temperature heat-conducting oil is switched to the flow channels inside the second lower mold and the second upper mold, which are currently in the bottom cooling position. This achieves alternating operation of heating and vulcanization with cooling and part removal at two different stations, improving the efficiency of the heat-insulating silicone sealant molding process.

[0008] The present invention is further configured such that the first lower mold and the second lower mold are each composed of a lower mold platform, an inner mold core, a heat-regulating plate, and an S-shaped flow channel. The first lower mold and the second lower mold are symmetrically connected by two lower mold platforms with bolts. The inner mold core is bolted to the side of the two lower mold platforms near the first upper mold and the second upper mold, respectively. The S-shaped flow channel is opened inside the lower mold platform. The heat-regulating plate is located between the inner mold core and the S-shaped flow channel and is connected to the inner sealing bolt of the lower mold platform.

[0009] The above technical solution is adopted: by setting up a heat-dissipating plate, the temperature conduction efficiency of the heat-conducting oil when it circulates inside the S-shaped flow channel can be improved, so that high and low temperatures can be evenly conducted to the inner mold core at the top through the heat-dissipating plate, thereby heating and cooling the heat-insulating silicone inside.

[0010] The present invention is further configured such that the flipping mechanism includes a fixed plate bolted to one side of the molding platform, a rotating column rotatably connected to the molding platform is provided inside the fixed plate on the side near the molding platform, a rotating plate is rotatably connected to the side of the fixed plate away from the rotating column, a square insert rod is welded to the side of the rotating plate inside the fixed plate and slidably inserted into the rotating column, a first hydraulic cylinder is bolted to the side of the molding platform near the rotating column, a linear rack slidably connected to the side of the first hydraulic cylinder is bolted to the output end of the first hydraulic cylinder, and a semi-circular gear meshing with the linear rack is bolted to the end of the rotating column away from the fixed plate.

[0011] The above technical solution is adopted: by opening the first hydraulic cylinder, the linear rack moves back and forth up and down. After the linear rack meshes with the semi-circular gear, it can drive the rotating column to rotate 180° in both directions. This drives the first lower mold, the first upper mold, the second lower mold, and the second upper mold to alternately rotate 180° in both directions to open and close. This allows the workers sufficient time to remove the heat-insulating silicone inside the mold and clean the residual heat-insulating silicone debris inside the mold. The mold cleaning process does not delay the normal molding process of the top heat-insulating silicone.

[0012] The invention is further configured such that two connecting flanges are welded to the side of the rotating plate away from the square insert rod, and the two connecting flanges are respectively connected to the sealing bolts on the side of the first lower mold and the second lower mold near the fixed plate. The fixed plate is also provided with an inner cavity groove, and the inner cavity groove is connected to one end of the S-shaped flow channel inside the first lower mold and the second lower mold through the two connecting flanges. The top and bottom of one side of the fixed plate are respectively connected to two one-way oil inlet valves connected to the inner cavity groove by sealing bolts. The one-way oil inlet valve at the top is connected to the high temperature oil circuit, and the one-way oil inlet valve at the bottom is connected to the low temperature oil circuit. Two sealing partitions that are symmetrically welded to the surface of the rotating column at the end inside the fixed plate are connected to the inner cavity groove by sealing and sliding connection.

[0013] The above technical solution utilizes a flipping mechanism to simultaneously switch the high-temperature heat-conducting oil to the flow channel inside the mold currently in the top heating position, and the low-temperature heat-conducting oil to the flow channel inside the mold currently in the bottom cooling position. This achieves alternating dual-station operation for heating vulcanization and cooling part removal.

[0014] The present invention is further configured such that the mold opening and closing mechanism includes an annular guide rail bolted to the side of the same mold pressing platform near the first lower mold and the second lower mold, a sliding table slidably connected to the surface of the annular guide rail, and a second hydraulic cylinder bolted to the top of the sliding table away from the annular guide rail, the output end of the second hydraulic cylinder being bolted to one side of the top of the first upper mold.

[0015] Using the above technical solution: when the first lower mold and the first upper mold or the second lower mold and the second upper mold are flipped to the top, the first upper mold can be pushed by opening the second oil cylinder, thereby pressing the first lower mold and the first upper mold or the second lower mold and the second upper mold inside the top mold together. The connecting rod can simultaneously drive the first lower mold and the first upper mold or the second lower mold and the second upper mold inside the bottom mold to open, which facilitates the injection and heating of glue into the mold that is closed at the top, and the removal of heat insulation silicone and cleaning of the interior of the mold that is opened at the bottom.

[0016] The present invention is further configured such that a glue injection mechanism for use with the first upper mold and the second upper mold is also installed on the top of the molding platform. The glue injection mechanism includes a first motor bolted to the top of the molding platform. The output end of the first motor is bolted to a lead screw rotatably connected to the molding platform. A lead screw sleeve is threaded onto the surface of the lead screw. A glue injection cylinder is bolted to the side of the lead screw sleeve away from the molding platform. A feed hopper is fixedly connected to one side of the glue injection cylinder.

[0017] The above technical solution is adopted: by turning on the first motor to drive the lead screw to rotate in the forward direction and engage with the lead screw sleeve thread, the glue injection cylinder can be driven to move downward to the top of the mold for glue injection through the lead screw sleeve.

[0018] The invention is further configured such that a second motor is bolted to the top of the glue injection cylinder, and an auger rotatably connected to the output end of the second motor is bolted to the bottom of the glue injection cylinder, and a conical feed port is fixedly connected to the bottom of the glue injection cylinder.

[0019] Using the above technical solution: when the conical feed port is connected to the inside of the mold at the top, the second motor can be turned on to drive the auger to rotate, forcibly conveying the heat-insulating silicone raw material inside the injection cylinder downward into the mold.

[0020] The present invention is further configured such that both the first upper mold and the second upper mold have injection ports, and both the first upper mold and the second upper mold have guide grooves on their opposite sides. Both sides of the guide grooves are symmetrically slidably connected to two sliding baffles that cooperate with the same conical feed port. Both sides of the two sliding baffles are equipped with reset springs by spring fixing members.

[0021] The above technical solution is adopted: when the conical feed inlet is pulled out from between the two sliding baffles, the two sliding baffles can be reset by the rebound force of the reset spring, thereby blocking the opened glue injection port again, preventing the heated and melted heat insulation silicone raw material from dripping down through the glue injection port when flipped to the bottom.

[0022] The present invention is further configured such that an oil discharge mechanism is provided on the side of the first lower mold and the second lower mold away from the one-way oil inlet valve. The oil discharge mechanism includes one-way oil discharge valves that are respectively connected to the S-shaped flow channels inside the first lower mold and the second lower mold. The ends of the two one-way oil discharge valves away from the first lower mold and the second lower mold are fixedly connected to a three-way pipe. The end of the three-way pipe away from the one-way oil discharge valve is bolted to a sealing cover. The end of the sealing cover away from the three-way pipe is rotatably connected to a rotating joint that is connected to the inside of the three-way pipe.

[0023] By adopting the above technical solution, the heat-conducting oil that enters the S-shaped flow channel inside the first and second lower molds through the connecting flange can be discharged outward from the one-way oil drain valve at the other end and then concentrated inside the rotary joint. This allows the high and low temperature heat-conducting oil to circulate inside the S-shaped flow channel, ensuring heating and cooling effects.

[0024] The present invention is further configured such that the rotating column and the sealing partition are both bolted to the side of the fixed plate, and sealing gaskets are snapped onto both sides inside the fixed plate and the surface of the rotating joint.

[0025] The above technical solution improves sealing and prevents internal heat transfer oil from leaking out.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. By activating the flipping mechanism, the first lower mold, the first upper mold, and the second lower mold and the second upper mold are simultaneously flipped 180°. This allows the first lower mold and the first upper mold to rotate to the top and be pressed together by the mold opening and closing mechanism for glue injection. At the same time, the second lower mold and the second upper mold are flipped to the bottom and opened. This provides sufficient time for workers to remove the heat-insulating silicone from inside the second lower mold and the second upper mold, and to clean any remaining silicone debris from inside the molds, preventing any impact on subsequent processing.

[0028] 2. The flipping mechanism reciprocates by rotating the first lower mold, first upper mold, second lower mold, and second upper mold 180° in both directions. After the heat-insulating silicone inside the first lower mold and first upper mold has been heated and vulcanized, it flips to the bottom for cooling and shaping, while the second lower mold and second upper mold flip to the top. At this time, the opening and closing mechanism opens the first lower mold and first upper mold, while pressing the inside of the second lower mold and second upper mold together. This allows for the injection and heating of silicone inside the second lower mold and second upper mold. Meanwhile, the workers can remove the heat-insulating silicone from the opened first lower mold and first upper mold and clean any remaining silicone debris. The two sets of molds continue to flip and open and close in this manner, allowing the workers to clean the molds without interrupting the normal molding process of the heat-insulating silicone.

[0029] 3. During the flipping process of the first lower mold, first upper mold, second lower mold, and second upper mold, when the first lower mold and first upper mold are flipped to the top, the high-temperature heat-conducting oil can be switched to the internal flow channels of the first lower mold and first upper mold, which are currently in the top heating position, while the low-temperature heat-conducting oil is switched to the internal flow channels of the second lower mold and second upper mold, which are currently in the bottom cooling position. This achieves alternating operation of heating vulcanization and cooling part removal in two stations, improving the efficiency of heat-insulating silicone molding. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0032] Figure 3 This is a schematic diagram of the first and second lower mold structures of the present invention;

[0033] Figure 4 This is a schematic diagram of the first and second upper mold structures of the present invention;

[0034] Figure 5 This is a cross-sectional view of one side of the fixed disk structure of the present invention;

[0035] Figure 6 This is a cross-sectional view of the other side of the fixed disk structure of the present invention;

[0036] Figure 7 This is an exploded view of the internal structure of the first lower mold of the present invention;

[0037] Figure 8 This is a cross-sectional view of the first upper mold structure of the present invention;

[0038] Figure 9 This is a schematic diagram of the oil discharge mechanism of the present invention;

[0039] Figure 10 This is a cross-sectional view of the glue injection mechanism of the present invention.

[0040] Reference numerals: 1. Molding table; 2. First lower mold; 201. Lower mold platform; 202. Inner mold core; 203. Heating plate; 204. S-shaped flow channel; 3. Second lower mold; 4. First upper mold; 5. Second upper mold; 6. Connecting rod; 7. Tilting mechanism; 701. Fixed plate; 702. Rotating column; 703. Rotating plate; 704. Connecting flange; 705. Semi-circular gear; 706. First hydraulic cylinder; 707. Linear rack; 708. Square insert rod; 709. Inner cavity groove; 710. Sealing partition; 711. One-way oil inlet valve; 8. Mold opening and closing machine 801. Circular guide rail; 802. Sliding table; 803. Second oil cylinder; 9. Glue injection mechanism; 901. First motor; 902. Lead screw; 903. Lead screw sleeve; 904. Glue injection cylinder; 905. Feed hopper; 906. Second motor; 907. Screw conveyor; 908. Conical feed inlet; 10. Oil discharge mechanism; 101. One-way oil discharge valve; 102. T-pipe; 103. Sealing cover; 104. Rotary joint; 11. Glue injection port; 12. Guide groove; 13. Sliding baffle; 14. Return spring; 15. Sealing gasket; 16. Sealing strip. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Example 1:

[0043] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6A heat-insulating silicone molding apparatus includes a molding table 1. A first lower mold 2 and a second lower mold 3 are respectively arranged on the top of the molding table 1. A first upper mold 4 and a second upper mold 5 are symmetrically arranged on the sides of the first lower mold 2 and the second lower mold 3 that are far apart from each other. The first upper mold 4 and the second upper mold 5 are bolted together with connecting rods 6 that are slidably connected to the first lower mold 2 and the second lower mold 3 respectively. The molding table 1 is equipped with a flipping mechanism 7 and a mold opening and closing mechanism 8 that cooperate with the first lower mold 2 and the second lower mold 3. By opening the flipping mechanism 7, the first lower mold 2 and the first upper mold 4, as well as the second lower mold 3 and the second upper mold 5, are simultaneously rotated 180°. Thus, while the first lower mold 2 and the first upper mold 4 are rotated to the top and pressed together by the mold opening and closing mechanism 8 for silicone injection processing, the second lower mold 3 and the second upper mold 5 are simultaneously flipped to the bottom and opened. This allows workers ample time to remove the heat-insulating silicone from the second lower mold 3 and the second upper mold 5 and to clean any remaining silicone debris inside the molds, preventing any impact on subsequent processing. The flipping mechanism 7 reciprocates by rotating the first lower mold 2 and the first upper mold 4, as well as the second lower mold 3 and the second upper mold 5, by 180° in both directions. After the heat-insulating silicone inside the first lower mold 2 and the first upper mold 4 has been heated and vulcanized, it is flipped to the bottom for cooling and shaping, while the second lower mold 3 and the second upper mold 5 are flipped to the top. At this point, the mold opening and closing mechanism 8 opens the first lower mold 2 and the first upper mold 4, while simultaneously pressing the second lower mold 3 and the second upper mold 5 together. This allows for the injection and heating of the silicone sealant inside the second lower mold 3 and the second upper mold 5. Meanwhile, the operator can remove the heat-insulating silicone sealant from inside the opened first lower mold 2 and the first upper mold 4 and clean any remaining silicone sealant debris. The two sets of molds repeatedly open and close in this manner, ensuring that the normal molding process of the heat-insulating silicone sealant is not interrupted during mold cleaning. The flipping mechanism 7 flips the first lower mold 2 and the first upper mold 4, as well as the second lower mold 3 and the second upper mold 5. When the first lower mold 2 and the first upper mold 4 are flipped to the top, the high-temperature heat-conducting oil is simultaneously switched to the flow channels inside the first lower mold 2 and the first upper mold 4, which are currently in the top heating position, while the low-temperature heat-conducting oil is switched to the flow channels inside the second lower mold 3 and the second upper mold 5, which are currently in the bottom cooling position. This achieves alternating operation of heating and vulcanization with cooling and part removal, improving the efficiency of heat-insulating silicone sealant molding.

[0044] refer to Figure 1 , Figure 3 , Figure 7The first lower mold 2 and the second lower mold 3 are both composed of a lower mold platform 201, an inner mold core 202, a heat-dampening plate 203, and an S-shaped flow channel 204. The first lower mold 2 and the second lower mold 3 are symmetrically connected by two lower mold platforms 201 with bolts. The inner mold core 202 is bolted to the side of the two lower mold platforms 201 near the first upper mold 4 and the second upper mold 5, respectively. The S-shaped flow channel 204 is opened inside the lower mold platform 201. The heat-dampening plate 203 is located between the inner mold core 202 and the S-shaped flow channel 204 and is connected to the inner sealing bolt of the lower mold platform 201. By setting the heat-dampening plate 203, the temperature conduction efficiency of the heat-conducting oil when circulating inside the S-shaped flow channel 204 can be improved, so that high and low temperatures can be evenly conducted to the inner mold core 202 at the top through the heat-dampening plate 203, thereby heating and cooling the heat-insulating silicone inside. The heat-dampening plate 203 is made of copper-graphite composite plate, with the graphite layer serving as the middle core layer and the copper layer covering the upper and lower sides of the graphite core layer, forming a three-layer composite structure to improve the temperature conduction effect. At the same time, the inner mold core 202 is bolted to the lower mold platform 201, which allows for disassembly and convenient replacement of the internal heat-dampening plate 203.

[0045] refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 The flipping mechanism 7 includes a fixed plate 701 bolted to one side of the molding platform 1. Inside the fixed plate 701, near the molding platform 1, is a rotating column 702 rotatably connected to the molding platform 1. On the side of the fixed plate 701 away from the rotating column 702, a rotating plate 703 is rotatably connected. On the side of the rotating plate 703 inside the fixed plate 701, a square insert rod 708 is welded, slidingly inserted into the rotating column 702. Inside the molding platform 1, near the rotating column 702, is a first hydraulic cylinder 706 bolted to the side. The output end of the first hydraulic cylinder 706 is bolted to a linear rack 707 slidably connected inside the molding platform 1. The end of the rotating column 702 away from the fixed plate 701 is bolted to a semi-circular gear 705 meshing with the linear rack 707. By opening the first hydraulic cylinder... The cylinder 706 drives the linear rack 707 to move up and down reciprocally. After the linear rack 707 meshes with the semi-circular gear 705, it can drive the rotating column 702 to rotate 180° in both directions. This causes the first lower mold 2 and the first upper mold 4, as well as the second lower mold 3 and the second upper mold 5, to alternately rotate 180° in both directions to open and close. This allows the workers sufficient time to remove the heat-insulating silicone inside the mold and clean the remaining heat-insulating silicone debris. The mold cleaning process does not delay the normal molding process of the top heat-insulating silicone. The length of the arc surface of the semi-circular gear 705 is the same as the length of the linear rack 707. Therefore, when the semi-circular gear 705 meshes with the linear rack 707, it can ensure that the rotating column 702 rotates 180°.

[0046] refer to Figure 2 , Figure 5 , Figure 6 Two connecting flanges 704 are welded to the side of the rotating plate 703 away from the square insert rod 708. The two connecting flanges 704 are respectively connected to the sealing bolts on the side of the first lower mold 2 and the second lower mold 3 near the fixed plate 701. The fixed plate 701 also has an inner cavity groove 709. The inner cavity groove 709 is connected to one end of the S-shaped flow channel 204 inside the first lower mold 2 and the second lower mold 3 through the two connecting flanges 704. Two one-way oil inlet valves 711 connected to the inner cavity groove 709 are respectively connected to the top and bottom of one side of the fixed plate 701 by sealing bolts. The one-way oil inlet valve 711 is connected to the high-temperature oil circuit, and the one-way oil inlet valve 711 at the bottom is connected to the low-temperature oil circuit. The rotating column 702 has two sealing partitions 710 that are symmetrically welded to the surface of one end inside the fixed plate 701 and are in a sealing sliding connection with the inner cavity groove 709. During the flipping process of the flipping mechanism 7, the first lower mold 2, the first upper mold 4, the second lower mold 3, and the second upper mold 5 can be flipped, and the high-temperature heat-conducting oil can be switched to the internal flow channel of the mold currently in the top heating position, and the low-temperature heat-conducting oil can be switched to the internal flow channel of the mold currently in the bottom cooling position. This enables alternating operation of heating vulcanization and cooling part removal at two stations. High and low temperature heat-conducting oils are injected into the inner cavity groove 709 through the one-way oil inlet valve 711, which prevents the heat-conducting oil from flowing back into the one-way oil inlet valve 711. At the same time, after the mold is rotated 180° in both directions, the two one-way oil inlet valves 711 can be separated by the sealing partition 710 to prevent the high and low temperature heat-conducting oils from flowing together.

[0047] refer to Figure 1 , Figure 2 The mold opening and closing mechanism 8 includes an annular guide rail 801 bolted to the side of the mold pressing table 1 near the first lower mold 2 and the second lower mold 3. A sliding table 802 is slidably connected to the surface of the annular guide rail 801. A second hydraulic cylinder 803 is bolted to the top of the sliding table 802 away from the annular guide rail 801. The output end of the second hydraulic cylinder 803 is bolted to one side of the top of the first upper mold 4. When the first lower mold 2 and the first upper mold 4 or the second lower mold 3 and the second upper mold 5 are flipped to the top, the second hydraulic cylinder 803 can be opened to push the first upper mold 4, thereby pressing the first lower mold 2 and the first upper mold 4 or the second lower mold 3 and the second upper mold 5 at the top together. The connecting rod 6 can simultaneously drive the first lower mold 2 and the first upper mold 4 or the second lower mold 3 and the second upper mold 5 at the bottom to open, which facilitates the injection and heating of the mold inside the top closed mold, the removal of the heat insulation silicone and cleaning of the inside of the mold when the bottom is open. Meanwhile, the first lower mold 2, the first upper mold 4, the second lower mold 3, and the second upper mold 5 can rotate inside the annular guide rail 801 via the sliding table 802, so that the second oil cylinder 803 can rotate with the first upper mold 4.

[0048] refer to Figure 1 , Figure 2 , Figure 10 The top of the molding platform 1 is also equipped with a glue injection mechanism 9 that works in conjunction with the first upper mold 4 and the second upper mold 5. The glue injection mechanism 9 includes a first motor 901 bolted to the top of the molding platform 1. The output end of the first motor 901 is bolted to a lead screw 902 that is rotatably connected to the molding platform 1. A lead screw sleeve 903 is threaded onto the surface of the lead screw 902. A glue injection cylinder 904 is bolted to the side of the lead screw sleeve 903 away from the molding platform 1. A feed hopper 905 is fixedly connected to one side of the glue injection cylinder 904. By turning on the first motor 901, the lead screw 902 is driven to rotate forward and engage with the lead screw sleeve 903. Thus, the glue injection cylinder 904 can be driven by the lead screw sleeve 903 to move downwards towards the top of the mold for glue injection.

[0049] refer to Figure 1 , Figure 10 The top of the injection cylinder 904 is bolted to a second motor 906, and the output end of the second motor 906 is bolted to an auger 907 that is rotatably connected to the injection cylinder 904. The bottom of the injection cylinder 904 is fixedly connected to a conical feed port 908. When the conical feed port 908 is connected to the inside of the mold at the top, the second motor 906 can be turned on to drive the auger 907 to rotate, forcibly conveying the heat-insulating silicone material inside the injection cylinder 904 downward into the mold. Since the heat-insulating silicone material after mixing is difficult to flow when unheated, it can be forcibly conveyed by the auger 907, and when the auger 907 stops, it can prevent the heat-insulating silicone material from flowing out of the injection cylinder 904.

[0050] refer to Figure 4 , Figure 8 Both the first upper mold 4 and the second upper mold 5 have injection ports 11. Guide grooves 12 are provided on the opposite sides of the first upper mold 4 and the second upper mold 5. Two sliding baffles 13 that cooperate with the conical feed port 908 are symmetrically slidably connected to both sides of the guide groove 12. The opposite sides of the two sliding baffles 13 are equipped with return springs 14 by spring fixing components. When the material enters the interior between the two sliding baffles 13 through the bottom of the conical feed port 908, the conical extrusion of the surface of the conical feed port 908 can push the two sliding baffles 13 to slide to the sides, opening the injection port 11 at the top of the first upper mold 4, so that the conical feed port 908 and the injection port 11 are connected, and the interior of the mold is opened for injection. At the same time, when the conical feed port 908 is pulled out from between the two sliding baffles 13, the two sliding baffles 13 can be reset by the rebound force of the reset spring 14, thereby blocking the opened glue injection port 11 again, preventing the heated and melted heat insulation silicone raw material from dripping down through the glue injection port 11 when flipped to the bottom.

[0051] refer to Figure 3 , Figure 9 On the side of the first lower mold 2 and the second lower mold 3 away from the one-way oil inlet valve 711, an oil discharge mechanism 10 is also provided. The oil discharge mechanism 10 includes one-way oil discharge valves 101 that are respectively connected to the S-shaped flow channels 204 inside the first lower mold 2 and the second lower mold 3. The ends of the two one-way oil discharge valves 101 away from the first lower mold 2 and the second lower mold 3 are fixedly connected to a three-way pipe 102. The end of the three-way pipe 102 away from the one-way oil discharge valve 101 is bolted to a sealing cover 103. The end of the sealing cover 103 away from the three-way pipe 102 is rotatably connected to a rotating joint 104 that is connected to the inside of the three-way pipe 102. This allows the heat-conducting oil that enters the S-shaped flow channels 204 inside the first lower mold 2 and the second lower mold 3 through the connecting flange 704 to be discharged outward from the one-way oil discharge valve 101 at the other end and then concentrated inside the rotating joint 104. This allows the high and low temperature heat-conducting oil to circulate inside the S-shaped flow channels 204. By setting a one-way drain valve 101, the discharged heat-conducting oil can only flow in one direction, preventing it from flowing back into the S-shaped flow channel 204. Furthermore, the rotation between the sealing cover 103 and the rotating joint 104 ensures that when the flipping mechanism 7 flips the first lower mold 2 and the second lower mold 3, the rotating joint 104 will not twist, ensuring smooth flow of the heat-conducting oil. The other end of the rotating joint 104 away from the sealing cover 103 can be connected to the inlet of a heating or cooling device. The one-way inlet valve 711 at the top is connected to the outlet of the heating device, and the one-way inlet valve 711 at the bottom is connected to the outlet of the cooling device. This allows the discharged heat-conducting oil to be reheated and cooled before flowing back into the S-shaped flow channel 204, ensuring continuous circulation and improving heating and cooling efficiency.

[0052] refer to Figure 5 , Figure 6 , Figure 9 Both the rotating column 702 and the sealing partition 710 are bolted to the side of the fixed plate 701 with sealing gaskets 15. Sealing strips 16 are also snapped onto both sides of the inside of the fixed plate 701 and the surface of the rotating joint 104. This improves sealing performance and prevents internal heat transfer oil from leaking out. The sealing gaskets 15 and sealing strips 16 are made of polytetrafluoroethylene composite material, specifically modified PTFE filled with carbon fiber and graphite. This ensures sealing performance while preventing swelling or decomposition of the heat transfer oil during long-term contact with high and low temperatures. The annular sealing strip 16 can be assembled in segments: the entire sealing ring is composed of four arc-shaped sealing strips spliced ​​together, with 45° bevels at both ends of each segment. During assembly, the sealing strips are first inserted into the grooves segment by segment, and then a special adhesive is applied to the bevels to connect the segments into a complete ring. This method reduces the difficulty of overall molding and facilitates maintenance and replacement.

[0053] Brief description of the usage process: First, the mixed heat-insulating silicone raw material is poured into the feed hopper 905, allowing the heat-insulating silicone raw material to enter the injection cylinder 904. Then, the first motor 901 is turned on, driving the lead screw 902 to rotate forward and engage with the lead screw sleeve 903. This allows the injection cylinder 904 to move downward through the lead screw sleeve 903. When the bottom of the conical feed inlet 908 enters the space between the two sliding baffles 13, the conical surface of the conical feed inlet 908 can compress the sliding baffles 13 on both sides, overcoming the return spring. The elastic force of the spring 14 pushes the two sliding baffles 13 to slide to both sides to open the injection port 11 at the top of the first upper mold 4, so that the conical feed port 908 is connected to the inside of the injection port 11; at the same time, the second motor 906 is turned on to drive the auger 907 to rotate, forcibly conveying the heat-insulating silicone material inside the injection cylinder 904 downward, and then conveying it through the injection port 11 into the inner mold core 202 between the first lower mold 2 and the first upper mold 4 that are pressed together, and after inputting the corresponding metering, the second motor 906 is turned off to stop conveying. Then, by opening the one-way oil inlet valve 711 at the top, the high-temperature heat-conducting oil enters the interior of the inner cavity groove 709 through the one-way oil inlet valve 711 at the top, and then enters the S-shaped flow channel 204 inside the first lower mold 2 through the connecting flange 704 for flow. The heat is evenly conducted by the heat-dissipating plate 203, thereby heating and vulcanizing the heat-insulating silicone raw material in the inner mold core 202 inside the first lower mold 2. The high-temperature heat-conducting oil can be discharged outward through the one-way oil drain valve 101.

[0054] After the heat-insulating silicone material in the inner mold core 202 of the first lower mold 2 is fully heated and vulcanized, the first motor 901 is turned on to drive the lead screw 902 to rotate in the opposite direction. After the lead screw 902 and the lead screw sleeve 903 are threaded together, the injection cylinder 904 can be moved upward to reset. Then, the first hydraulic cylinder 706 is turned on to drive the linear rack 707 to move downward. After the linear rack 707 meshes with the semi-circular gear 705, it drives the rotating column 702 to rotate 180°. The rotating plate 703 is slidably inserted into the rotating column 702 through the square insert rod 708. Therefore, when the rotating column 702 rotates, it will also drive the rotating plate 703 to rotate synchronously. This will flip the top, the first lower mold 2 and the first upper mold 4 to the bottom, while the second lower mold 3 and the second upper mold 5 at the bottom will flip to the top. Since the conical feed port 908 is pulled out from between the two sliding baffles 13 at this time, the two sliding baffles 13 can be reset by the rebound force of the reset spring 14, thereby blocking the open injection port 11 again and preventing the heat insulation silicone material inside the inner mold core 202 from dripping down through the injection port 11 when flipped to the bottom. Simultaneously, when the rotating column 702 rotates, it will drive the sealing partitions 710 on both sides to rotate inside the inner cavity groove 709, separating the high-temperature heat-conducting oil and the low-temperature heat-conducting oil respectively. Thus, when the first lower mold 2 and the first upper mold 4 rotate to the bottom, the one-way oil inlet valve 711 at the bottom is opened. The S-shaped flow channel 204 inside the first lower mold 2 will connect with the inner cavity groove 709 connected to the bottom one-way oil inlet valve 711, and the S-shaped flow channel 204 inside the second lower mold 3 will connect with the inner cavity groove 709 connected to the top one-way oil inlet valve 711. This allows the low-temperature heat-conducting oil to re-enter the inner cavity groove 709 through the bottom one-way oil inlet valve 711, and then flow into the S-shaped flow channel 204 inside the first lower mold 2 through the connecting flange 704. This allows it to cool and shape the heat-insulating silicone in the inner mold core 202 inside the first lower mold 2. The high-temperature heat-conducting oil can also be discharged outward through the one-way oil drain valve 101.

[0055] After the heat-insulating silicone in the inner mold core 202 of the first lower mold 2 has completely cooled and solidified, the second oil cylinder 803 is activated to move the first upper mold 4 downwards, thereby opening the first upper mold 4 that was pressed against the first lower mold 2. At the same time, the first upper mold 4 uses the connecting rod 6 to synchronously move the second upper mold 5, thereby causing the second upper mold 5 to press against the top of the second lower mold 3. At this time, the injection mechanism 9 can be activated again to move downwards, opening the injection port 11 inside the second upper mold 5, and injecting the high-temperature heat-conducting oil into the inner mold core 202 between the second lower mold 3 and the second upper mold 5. At this time, the oil can also enter the inner cavity groove 709 through the top one-way oil inlet valve 711, and then enter the S-shaped flow channel 204 inside the second lower mold 3 through the connecting flange 704, so as to heat and vulcanize the heat-insulating silicone material in the inner mold core 202 inside the second lower mold 3. During the heating and vulcanization process of the heat-insulating silicone material inside the second lower mold 3, the heat-insulating silicone inside the opened first lower mold 2 and first upper mold 4 can be removed, and any remaining heat-insulating silicone inside the first lower mold 2 and first upper mold 4 can be cleaned. After the heat-insulating silicone material inside the second lower mold 3 has been fully heated and vulcanized, the first oil cylinder 706 can be opened again to drive the linear rack 707 to slide downwards and mesh with the semi-circular gear 705, thereby causing the first lower mold 2 and first upper mold 4, as well as the second lower mold 3 and second upper mold 5, to rotate 180° in the opposite direction again, turning the second lower mold 3 to the bottom and the first lower mold 2 back to the top. At this time, the low-temperature heat-conducting oil can flow back into the S-shaped flow channel 204 inside the second lower mold 3 to cool and shape the heat-insulating silicone in the inner mold core 202 inside the second lower mold 3.

[0056] Finally, after the heat-insulating silicone has completely cooled and set, the second oil cylinder 803 is activated again to move the first upper mold 4 downward, pressing the first lower mold 2 and the first upper mold 4 together again. The second lower mold 3 and the second upper mold 5 are then opened, allowing the glue injection mechanism 9 to inject glue into the first lower mold 2 and the high-temperature heat-conducting oil to flow back into the S-shaped flow channel 204 inside the first lower mold 2 for heating and vulcanization. During this process, the heat-insulating silicone inside the opened second lower mold 3 can be removed, and the residual heat-insulating silicone inside the second lower mold 3 and the second upper mold 5 can be cleaned.

[0057] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A heat-insulating silicone molding apparatus, comprising a molding table (1), characterized in that: The top of the molding platform (1) is provided with a first lower mold (2) and a second lower mold (3). On the side of the first lower mold (2) and the second lower mold (3) that are far apart from each other, a first upper mold (4) and a second upper mold (5) are respectively provided. The first upper mold (4) and the second upper mold (5) are bolted together with connecting rods (6) that are slidably connected to the first lower mold (2) and the second lower mold (3). The inside of the molding platform (1) is equipped with a flipping mechanism (7) and a mold opening and closing mechanism (8) that are used in conjunction with the first lower mold (2) and the second lower mold (3).

2. The heat-insulating silicone molding apparatus according to claim 1, characterized in that: The first lower mold (2) and the second lower mold (3) are both composed of a lower mold platform (201), an inner mold core (202), a heat equalizing plate (203), and an S-shaped flow channel (204). The first lower mold (2) and the second lower mold (3) are connected symmetrically to each other by two lower mold platforms (201) with bolts. The inner mold core (202) is bolted to the side of the two lower mold platforms (201) near the first upper mold (4) and the second upper mold (5). The S-shaped flow channel (204) is opened inside the lower mold platform (201). The heat equalizing plate (203) is located between the inner mold core (202) and the S-shaped flow channel (204) and is connected to the inner sealing bolt of the lower mold platform (201).

3. The heat-insulating silicone molding apparatus according to claim 1, characterized in that: The flipping mechanism (7) includes a fixed plate (701) bolted to one side of the molding platform (1). Inside the fixed plate (701), on the side near the molding platform (1), there is a rotating column (702) rotatably connected to the molding platform (1). On the side of the fixed plate (701) away from the rotating column (702), there is a rotating plate (703) rotatably connected. On the side of the rotating plate (703) inside the fixed plate (701), there is a square insert rod (708) slidably inserted into the rotating column (702). Inside the molding platform (1), on the side near the rotating column (702), there is a first oil cylinder (706) bolted to the side. The output end of the first oil cylinder (706) is bolted to a linear rack (707) slidably connected inside the molding platform (1). On the end of the rotating column (702) away from the fixed plate (701), there is a semi-circular gear (705) meshing with the linear rack (707).

4. The heat-insulating silicone molding apparatus according to claim 3, characterized in that: Two connecting flanges (704) are welded to the side of the rotating plate (703) away from the square insert (708). The two connecting flanges (704) are respectively connected to the sealing bolts on the side of the first lower mold (2) and the second lower mold (3) near the fixed plate (701). The fixed plate (701) is also provided with an inner cavity groove (709). The inner cavity groove (709) is connected to the S-shaped flow channel (20) inside the first lower mold (2) and the second lower mold (3) through the two connecting flanges (704). 4) One end is connected, and the top and bottom of one side of the surface of the fixed disk (701) are respectively sealed with bolts to two one-way oil inlet valves (711) connected to the inner cavity groove (709). The one-way oil inlet valve (711) at the top is connected to the high temperature oil circuit, and the one-way oil inlet valve (711) at the bottom is connected to the low temperature oil circuit. The rotating column (702) has two sealing partitions (710) symmetrically welded to the surface of one end inside the fixed disk (701) and sealed and slidably connected to the inner cavity groove (709).

5. The heat-insulating silicone molding apparatus according to claim 1, characterized in that: The mold opening and closing mechanism (8) includes an annular guide rail (801) bolted to the side of the same mold pressing table (1) near the first lower mold (2) and the second lower mold (3). A sliding table (802) is slidably connected to the surface of the annular guide rail (801). A second oil cylinder (803) is bolted to the side of the top of the sliding table (802) away from the annular guide rail (801). The output end of the second oil cylinder (803) is bolted to the side of the top of the first upper mold (4).

6. The heat-insulating silicone molding apparatus according to claim 1, characterized in that: The top of the molding platform (1) is also equipped with a glue injection mechanism (9) that works in conjunction with the first upper mold (4) and the second upper mold (5). The glue injection mechanism (9) includes a first motor (901) bolted to the top of the molding platform (1). The output end of the first motor (901) is bolted to a lead screw (902) that is rotatably connected to the molding platform (1). A lead screw sleeve (903) is threaded onto the surface of the lead screw (902). A glue injection cylinder (904) is bolted to the side of the lead screw sleeve (903) away from the molding platform (1). A feed hopper (905) is fixedly connected to one side of the glue injection cylinder (904).

7. The heat-insulating silicone molding apparatus according to claim 6, characterized in that: The top of the glue injection cylinder (904) is bolted to a second motor (906), the output end of the second motor (906) is bolted to an auger (907) that is rotatably connected to the glue injection cylinder (904), and the bottom of the glue injection cylinder (904) is fixedly connected to a conical feed port (908).

8. The heat-insulating silicone molding apparatus according to claim 7, characterized in that: Both the first upper mold (4) and the second upper mold (5) have injection ports (11) inside. Both the first upper mold (4) and the second upper mold (5) have guide grooves (12) on the side away from each other. Both sides of the guide groove (12) are symmetrically connected to two sliding baffles (13) that cooperate with the conical feed port (908). Both sides of the two sliding baffles (13) are equipped with reset springs (14) by spring fixing parts on the side away from each other.

9. The heat-insulating silicone molding apparatus according to claim 4, characterized in that: An oil draining mechanism (10) is provided on the side of the first lower mold (2) and the second lower mold (3) away from the one-way oil inlet valve (711). The oil draining mechanism (10) includes one-way oil draining valves (101) that are connected to the S-shaped flow channels (204) inside the first lower mold (2) and the second lower mold (3) respectively. The ends of the two one-way oil draining valves (101) away from the first lower mold (2) and the second lower mold (3) are fixedly connected to a three-way pipe (102). The end of the three-way pipe (102) away from the one-way oil draining valve (101) is bolted to a sealing cover (103). The end of the sealing cover (103) away from the three-way pipe (102) is rotatably connected to a rotating joint (104) that is connected to the inside of the three-way pipe (102).

10. The heat-insulating silicone molding apparatus according to claim 9, characterized in that: The rotating column (702) and the sealing partition (710) are both bolted with sealing gaskets (15) on the side near the fixed disk (701), and sealing strips (16) are snapped onto both sides inside the fixed disk (701) and the surface of the rotating joint (104).

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