A kind of silicone rubber preparation process

Abstract

The invention discloses a rubber preparation technology, and in particular relates to a silicone rubber preparation process, comprising the following steps: S1: softening the raw rubber and cutting it into pieces; S2: processing the softened and cut raw rubber through a plasticizer; S3: mixing the product in S2 with a compounding agent in a plasticizer; S4: making the product in S3 into different shapes in a calendering device; S5: adding a vulcanizing agent to the product in S4. The raw rubber is baked and softened and cut into small pieces. The small pieces of raw rubber are put into a plasticizer for processing, and the processed products are mixed with a compounding agent in a plasticizer. Compounding agents include paraffin, stearic acid, rosin, talc, etc. The mixed product is made into semi-finished products of various shapes and sizes on a calendering device, and a certain amount of vulcanizing agent is added to the semi-finished product to make the plastic rubber material become a vulcanized rubber with high elasticity.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber preparation, and in particular relates to a silicone rubber preparation process. Background Art

[0002] Silicone rubber products are made of methyl vinyl silicone rubber as the base rubber, with various fillers (reinforcing agent, heat-resistant agent, modifier, etc.) added through mixing, thinning, filtering, vulcanization, molding, extrusion, bonding and other production processes.

[0003] The Chinese invention patent with application number 201810430042.7 discloses a silicone rubber production process, which includes the following steps: after the raw rubber is softened, it is cut or broken into small pieces, and block-shaped compounding agents such as paraffin, stearic acid, rosin, talc, etc. are put into a grinding device for grinding; the crushed raw rubber is put into a plastic mixer for heating to change the raw rubber from a strong elastic state to a soft, easy-to-process plastic state; the evenly ground compounding agent is mixed evenly with the raw rubber in a plastic state on a rubber mixer; the mixed rubber is made into semi-finished products of various shapes and sizes on a calender or extruder; a certain amount of vulcanizing agent is added to the semi-finished product to turn the plastic rubber into a vulcanized rubber with high elasticity.

[0004] The above patent discloses a method for producing silicone rubber. In the production of silicone rubber, a plasticizer is required to heat the raw rubber to facilitate processing. The Chinese invention patent with application number 202110903300.0 discloses a rubber raw material raw rubber plasticizing device, including a plasticizing box, a preheating box and a plasticizing roller. The interior of the plasticizing box is provided with a plasticizing roller, and one side of the plasticizing box is provided with a preheating box. The feed end of the preheating box is provided with a lower hopper. The interior of the preheating box is provided with a preheating roller for heating the raw materials in the plasticizing box, and one side of the preheating roller is provided with a rolling roller for rolling the raw materials in the plasticizing box. The end of the preheating box away from the lower hopper is provided with a feeding assembly for intermittent feeding of the plasticizing box. In the existing silicone rubber preparation process, when a plasticizer is used for processing, the plasticizing equipment needs to circulate and heat the raw materials through the continuous rotation of the plasticizing box, and the stability of the rotation affects the overall silicone rubber preparation efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an efficient silicone rubber preparation process in view of the above-mentioned technical problems.

[0006] The object of the present invention is achieved in this way: a silicone rubber preparation process comprises the following steps:

[0007] S1: soften the raw rubber and cut it into pieces;

[0008] S2: Processing the softened and cut raw rubber through a plasticizer;

[0009] S3: mixing the product in S2 with the compounding agent in a rubber mixer;

[0010] S4: the product in S3 is made into different shapes in a calendering device;

[0011] S5: adding a sulfiding agent to the product in S4.

[0012] In this technical solution, the raw rubber is baked and softened and then cut into small pieces. The small pieces of raw rubber are put into a plastic mixer for processing, and the processed products are mixed with compounding agents in the plastic mixer. Compounding agents include paraffin, stearic acid, rosin, talc, etc. The mixed products are made into semi-finished products of various shapes and sizes on a calendering device, and a certain amount of vulcanizing agent is added to the semi-finished products to turn the plastic rubber into a vulcanized rubber with high elasticity.

[0013] In the above technical solution, further, the plasticator comprises:

[0014] case;

[0015] A preheating box, which is disposed at the upper portion of the shell;

[0016] A plasticizing box, which is placed at the lower part of the shell;

[0017] A pump assembly is provided with a feed inlet and a discharge inlet, wherein the feed inlet corresponds to the plasticating box, and the discharge inlet corresponds to the preheating box;

[0018] Among them, the plasticizing box is provided with a first opening for feeding and a second opening for discharging, the preheating box is provided with a third opening for feeding and a fourth opening for discharging, the first opening is embedded in the fourth opening, a first unloading plate is provided in the first opening, a second unloading plate is provided in the fourth opening, the first unloading plate is provided with a first unloading hole, the second unloading plate is provided with a second unloading hole, and a rotating component is provided on the plasticizing box, which drives the plasticizing box to rotate so that the first unloading hole overlaps or is misplaced.

[0019] In this technical solution, the preheating box and the plasticizing box are arranged up and down in the shell, and a first opening for feeding is arranged at the upper part of the plasticizing box, a second opening for discharging is arranged at the side of the plasticizing box, a third opening for feeding is arranged at the upper part of the preheating box, and a fourth opening for discharging is arranged at the lower part of the preheating box. The pump assembly is provided with a feed inlet and a discharge inlet, the feed inlet corresponds to the second opening, and the discharge inlet is embedded in the preheating box.

[0020] The first opening is embedded in the fourth opening, and a first unloading plate is arranged in the first opening, and a second unloading plate is arranged in the fourth opening. A first unloading hole is arranged on the first unloading plate, and a second unloading hole is arranged on the second unloading plate. The second unloading hole can be rotated by the rotation of the plasticating box, so that the first unloading hole and the second unloading hole overlap, and the raw material can flow from the preheating box into the plasticating box.

[0021] In the above technical solution, further, the rotating assembly includes:

[0022] A support plate, which is placed in the shell;

[0023] A transmission gear, which is placed on the plasticating box;

[0024] A driving motor cooperates with a transmission gear to drive the plasticating box to rotate;

[0025] Wherein, a rotating assembly is arranged between the plasticating box and the supporting plate.

[0026] In the technical solution, the support plate is arranged at the lower part of the shell, a driving motor is arranged on the support plate, a transmission gear is arranged on the outer wall of the plasticating box, and a driving gear is arranged on the output shaft of the driving motor, and the plasticating box can be driven to rotate by the cooperation of the driving gear and the transmission gear. At the same time, a rotating assembly is arranged between the plasticating box and the support plate, which can ensure the stable rotation of the plasticating box.

[0027] In the above technical solution, further, the rotating assembly includes:

[0028] A first guide ring, which is placed on the support plate;

[0029] A first guide member, which is placed on the plasticating box and embedded in the first guide ring and can move along the first guide ring;

[0030] a second guide ring, which is placed on the support plate;

[0031] A first resistance member, which is placed on the plasticating box;

[0032] A second resistance member, which is disposed in the second guide ring;

[0033] The first resisting member and the second resisting member can resist each other, and the second resisting member is connected with a buffer assembly.

[0034] In the technical solution, when the plasticizing box rotates, the first guide member is embedded in the first guide ring and moves along the first guide ring, thereby ensuring the stability of the rotation of the plasticizing box. At the same time, a second guide ring is provided on the support plate, a first resistance member is provided on the plasticizing box, and a second resistance member is provided in the second guide ring, and the second resistance member can move in the second guide ring along the second guide ring. The second resistance member is connected to a buffer component, and when the first resistance member collides with the second resistance member, the rotation of the plasticizing box can be buffered by the buffer component, thereby further improving the stability of the rotation of the plasticizing box.

[0035] In the above technical solution, further, the first abutment member includes a first upper abutment block and a first lower abutment block, and the first upper abutment block and the second upper abutment block are rotatably connected.

[0036] The second abutment member comprises a second upper abutment block and a second lower abutment block, and the second upper abutment block and the second lower abutment block are rotatably connected.

[0037] The first upper abutment block abuts against the second lower abutment block, and the second upper abutment block abuts against the first lower abutment block.

[0038] The second upper abutment block is connected to the buffer assembly.

[0039] In the technical solution, the first upper resistance member and the second lower resistance member are in resistance, and the second upper resistance member and the first lower resistance member are in resistance. When the plasticizing box rotates back and forth, the first resistance member and the second resistance member can be kept in a state of resistance, thereby ensuring that the plasticizing box can be well buffered during rotation and rotation to ensure stability.

[0040] In the above technical solution, further, the buffer component includes:

[0041] A guide groove disposed on the second guide ring;

[0042] a buffer spring disposed in the guide groove;

[0043] a fixing plate, which is placed in the guide groove;

[0044] Wherein, a connecting portion extending toward the guide groove is provided on the second upper abutment block, one end of the buffer spring is fixed to the connecting portion, and the other end is fixed to the fixing plate.

[0045] In the technical solution, a guide groove is provided on one side of the second guide ring. The guide groove is arc-shaped so that it can fit the second guide ring. The buffer spring is embedded in the guide groove and can be extended and retracted along the arc-shaped guide groove. A fixing plate is provided in the guide groove, and a connecting part is provided on the second upper abutment block. One end of the buffer spring is connected to the fixing part and the other end is connected to the fixing plate. When the second abutment moves along the second guide ring, the buffer spring can also move along the guide groove, thereby buffering the rotation of the plasticating box.

[0046] In the above technical solution, further, a guide rail is provided on the second guide ring, the second resistance member is connected to a guide block, the guide block is embedded in the guide rail and can move along the guide rail, a bending portion is provided at one end of the guide rail away from the fixed plate, a limiting column is provided on one side of the bending portion, and the connecting portion can interfere with the limiting column.

[0047] In the technical solution, the guide track is arranged along the second guide ring, and the guide block is embedded in the guide track. When the second resistance member moves, the guide block can drive the second resistance member to move along the guide track, thereby causing the second point-out member to move along the second guide ring. The curved portion at the end of the guide track can cause the second upper resistance member moved thereto to rotate and, through the cooperation of the connecting portion and the limiting column, cause the second upper resistance member to disengage from the first lower resistance member, thereby reducing the resistance of the subsequent rotation of the plasticizing box.

[0048] In the above technical solution, further, a material pushing assembly is provided at the bottom of the plasticating box, and the material pushing assembly includes:

[0049] A first push plate;

[0050] A second push plate, which is arranged parallel to the first push plate;

[0051] A buffer portion, which is disposed between the first push plate and the second push plate;

[0052] A telescopic assembly connected to the second push plate and pushing the second push plate to drive the first push plate to move;

[0053] Wherein, the buffer part includes a first buffer sheet and a second buffer sheet, the first buffer sheet is connected to the first push plate, the second buffer sheet is connected to the second push plate, the first buffer sheet and the second buffer sheet. In this technical solution, the plasticizing box is provided with a fifth opening for pushing materials, and the first push plate is placed in the fifth opening. The first push plate is arranged parallel to the second push plate and is connected to the first push plate through the buffer part. The buffer part includes a first buffer sheet and a second buffer sheet, the cross-sections of the first buffer sheet and the second buffer sheet are both arc-shaped, so that the first buffer sheet and the second buffer sheet have a certain elasticity, and can buffer the movement of the first push plate through their own elasticity to ensure stable pushing.

[0054] The beneficial effects of the present invention are:

[0055] 1. A rotating assembly is provided on the plasticating box, which can support the rotation of the plasticating box and provide a buffer for the rotation of the plasticating box, thereby ensuring the stability of the plasticating box during reciprocating rotation.

[0056] 2. A first resistance block and a second resistance block are provided, and the cooperation between the first resistance block and the second resistance block can buffer the change of the rotation direction of the plasticizing box, and at the same time can reduce the influence on the subsequent rotation, and can further ensure the stability of the plasticizing box during rotation.

[0057] 3. A buffer portion is provided between the first push plate and the second push plate in the push assembly, and the buffer portion can buffer the movement of the first push plate during pushing, thereby ensuring the stability of the push structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the structure of the present invention;

[0059] Figure 2 It is a schematic diagram of the structure inside the present invention;

[0060] Figure 3 It is a schematic diagram of the structure of the rotating assembly;

[0061] Figure 4 yes Figure 3 Schematic diagram of the structure at A in the middle; wherein the reference numerals are: 100, housing; 110, preheating box; 111, third opening; 112, second unloading plate; 113, second unloading hole; 114, fourth opening; 120, plasticating box; 121, first opening; 122, second opening; 123, fifth opening; 124, first unloading plate; 125, first unloading hole; 130, transmission gear; 140, pump assembly; 150, first push plate; 151, second push plate; 152, third push plate; 153, fourth push plate; 154, fifth push plate; 155, fifth push plate; 156, fifth push plate; 157, fifth push plate; 158, fifth push plate; 159, fifth push plate; 160, fifth push plate; 161, fifth push plate; 162, fifth push plate; 163, fifth push plate; 164, fifth push plate; 165, fifth push plate; 166, fifth push plate; 167, fifth push plate; 168, fifth push plate; 169, fifth push plate; 170, fifth push plate; 171, fifth push plate; 172, fifth push plate; 173, fifth push plate; 174, fifth push plate; 175, fifth push plate; 176, fifth push plate; 177, fifth push plate; 178, fifth push plate; 179, fifth push plate; 180, fifth push plate; 181, fifth push plate; 182, fifth push plate; 183, fifth push plate; 184, fifth push plate; 185, fifth push plate; 186, fifth push plate; 187, fifth push plate; 188, fifth push plate; 189, fifth push plate; 190, fifth push 2. First buffer sheet; 153. Second buffer sheet; 160. Support plate; 200. Rotating assembly; 210. First guide ring; 211. First guide member; 212. First lower abutment block; 213. First upper abutment block; 220. Second guide ring; 221. Second upper abutment block; 222. Second lower abutment block; 223. Connecting portion; 230. Guide groove; 231. Buffer spring; 232. Fixing plate; 240. Guide rail; 241. Bending portion; 242. Limiting column. DETAILED DESCRIPTION

[0062] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings:

[0063] Embodiment 1:

[0064] This embodiment provides a silicone rubber preparation process, comprising the following steps:

[0065] S1: soften the raw rubber and cut it into pieces;

[0066] S2: Processing the softened and cut raw rubber through a plasticizer;

[0067] S3: mixing the product in S2 with the compounding agent in a rubber mixer;

[0068] S4: the product in S3 is made into different shapes in a calendering device;

[0069] S5: adding a sulfiding agent to the product in S4.

[0070] The raw rubber is baked and softened and cut into small pieces. The small pieces of raw rubber are put into a plastic mixer for processing, and the processed products are mixed with compounding agents in the plastic mixer. Compounding agents include paraffin, stearic acid, rosin, talc, etc. The mixed products are made into semi-finished products of various shapes and sizes on a calendering device, and a certain amount of vulcanizing agent is added to the semi-finished products to turn the plastic rubber into a highly elastic vulcanized rubber.

[0071] Embodiment 2:

[0072] This embodiment provides a silicone rubber preparation process. In addition to the technical features of the above embodiments, this embodiment also includes the following technical features.

[0073] refer to Figure 1 , Figure 2 , plasticizer includes:

[0074] Housing 100;

[0075] A preheating box 110 is disposed on the upper portion of the housing 100;

[0076] A plasticizing box 120, which is disposed at the lower part of the housing 100;

[0077] The material pump assembly 140 is provided with a feed inlet and a discharge outlet, wherein the feed inlet corresponds to the plasticating box 120 and the discharge outlet corresponds to the preheating box 110;

[0078] The plasticating box 120 is provided with a first opening 121 for feeding and a second opening 122 for discharging, and the preheating box 110 is provided with a third opening 111 for feeding and a fourth opening 114 for discharging.

[0079] The first opening 121 is embedded in the fourth opening 114. A first blanking plate 124 is disposed in the first opening 121. A second blanking plate 112 is disposed in the fourth opening 114. A first blanking hole 125 is disposed on the first blanking plate 124. A second blanking hole 113 is disposed on the second blanking plate 112.

[0080] The plasticating box 120 is provided with a rotating assembly, and the rotating assembly drives the plasticating box 120 to rotate so that the first material discharge holes 125 overlap or are misaligned.

[0081] The preheating box 110 and the plasticating box 120 are arranged up and down in the housing 100. At the same time, a first opening 121 for feeding is arranged at the upper part of the plasticating box 120, a second opening 122 for discharging is arranged at the side of the plasticating box 120, a third opening 111 for feeding is arranged at the upper part of the preheating box 110, and a fourth opening 114 for discharging is arranged at the lower part of the preheating box 110. The pump assembly 140 is provided with a feed port and a discharge port, the feed port corresponds to the second opening 122, and the discharge port is embedded in the preheating box 110.

[0082] The first opening 121 is embedded in the fourth opening 114, and a first unloading plate 124 is disposed in the first opening 121, and a second unloading plate 112 is disposed in the fourth opening 114. The first unloading plate 124 is provided with a first unloading hole 125, and the second unloading plate 112 is provided with a second unloading hole 113. The rotation of the plasticating box 120 can cause the second unloading hole 113 to rotate, so that the first unloading hole 125 overlaps with the second unloading hole 113, and the raw materials can flow from the preheating box 110 into the plasticating box 120.

[0083] Embodiment 3:

[0084] This embodiment provides a silicone rubber preparation process. In addition to the technical features of the above embodiments, this embodiment also includes the following technical features.

[0085] refer to Figure 2 , the rotating assembly includes:

[0086] A support plate 160 disposed in the housing 100;

[0087] A transmission gear 130, which is placed on the plasticating box 120;

[0088] A driving motor cooperates with the transmission gear 130 to drive the plasticating box 120 to rotate;

[0089] A rotating assembly 200 is disposed between the plasticating box 120 and the support plate 160. The support plate 160 is disposed at the lower part of the housing 100. A driving motor is disposed on the support plate 160. A transmission gear 130 is disposed on the outer wall of the plasticating box 120. A driving gear is disposed on the output shaft of the driving motor. The plasticating box 120 can be driven to rotate by the cooperation of the driving gear and the transmission gear 130. At the same time, the rotating assembly 200 is disposed between the plasticating box 120 and the support plate 160 to ensure the stable rotation of the plasticating box 120.

[0090] Embodiment 4:

[0091] This embodiment provides a silicone rubber preparation process. In addition to the technical features of the above embodiments, this embodiment also includes the following technical features:

[0092] refer to Figure 3 , Figure 4 , the rotating assembly 200 comprises:

[0093] A first guide ring 210, which is placed on the support plate 160;

[0094] A first guide member 211, which is placed on the plasticating box 120 and embedded in the first guide ring 210 and can move along the first guide ring 210;

[0095] A second guide ring 220, which is placed on the support plate 160;

[0096] A first resistance member, which is placed on the plasticating box 120;

[0097] A second resisting member, which is disposed in the second guide ring 220;

[0098] The first abutment and the second abutment can abut against each other, and the second abutment is connected with a buffer assembly. When the plasticizing box 120 rotates, the first guide member 211 is embedded in the first guide ring 210 and moves along the first guide ring 210, thereby ensuring the stability of the rotation of the plasticizing box 120. At the same time, a second guide ring 220 is provided on the support plate 160, a first abutment is provided on the plasticizing box 120, and a second abutment is provided in the second guide ring 220, and the second abutment can move in the second guide ring 220 along the second guide ring 220. The second abutment is connected with a buffer assembly, and when the first abutment collides with the second abutment, the rotation of the plasticizing box 120 can be buffered by the buffer assembly, thereby further improving the stability of the rotation of the plasticizing box 120.

[0099] In this embodiment, further, the first resisting member includes a first upper resisting block 213 and a first lower resisting block 212, and the first upper resisting block 213 and the second upper resisting block 221 are rotatably connected.

[0100] The second abutment member includes a second upper abutment block 221 and a second lower abutment block 222, and the second upper abutment block 221 and the second lower abutment block 222 are rotatably connected. The first upper abutment block 213 abuts against the second lower abutment block 222, the second upper abutment block 221 abuts against the first lower abutment block 212, and the second upper abutment block 221 is connected to the buffer assembly.

[0101] The first upper resistance member conflicts with the second lower resistance member, and the second upper resistance member conflicts with the first lower resistance member. When the plasticizing box 120 rotates back and forth, the first resistance member and the second resistance member can be kept in a state of conflict, thereby ensuring that the plasticizing box 120 can be well buffered during rotation and rotation to ensure stability.

[0102] In this embodiment, further, the buffer component includes:

[0103] A guide groove 230 disposed on the second guide ring 220;

[0104] A buffer spring 231 is disposed in the guide groove 230;

[0105] A fixing plate 232 disposed in the guide groove 230;

[0106] The second upper abutment block 221 is provided with a connection portion 223 extending toward the guide groove 230, one end of the buffer spring 231 is fixed to the connection portion 223, and the other end is fixed to the fixing plate 232. A guide groove 230 is provided on one side of the second guide ring 220, and the guide groove 230 is arc-shaped so that it can fit the second guide ring 220. The buffer spring 231 is embedded in the guide groove 230 and can be extended and retracted along the arc-shaped guide groove 230. A fixing plate 232 is provided in the guide groove 230, and a connection portion 223 is provided on the second upper abutment block 221. One end of the buffer spring 231 is connected to the fixing portion, and the other end is connected to the fixing plate 232. When the second abutment member moves along the second guide ring 220, the buffer spring 231 can also move along the guide groove 230, thereby buffering the rotation of the plasticizing box 120.

[0107] In this embodiment, further, the second guide ring 220 is provided with a guide rail 240, the second abutment is connected with a guide block, the guide block is embedded in the guide rail 240 and can move along the guide rail 240, the end of the guide rail 240 away from the fixed plate 232 is provided with a curved portion 241, one side of the curved portion 241 is provided with a limiting column 242, and the connecting portion 223 can abut against the limiting column 242. The guide rail 240 is arranged along the second guide ring 220, and the guide block is embedded in the guide rail 240. When the second abutment moves, the guide block can drive the second abutment to move along the guide rail 240, so that the second point-out member moves along the second guide ring 220. The curved portion 241 at the end of the guide rail 240 can make the second upper abutment moved thereto rotate and through the cooperation of the connecting portion 223 and the limiting column 242, the second upper abutment is disengaged from the first lower abutment, thereby reducing the resistance of the subsequent rotation of the plasticizing box 120.

[0108] In this embodiment, the rotating assembly 200 is provided with two groups symmetrically on the left and right. When the buffer springs 231 in one group of rotating assemblies 200 are compressed, the buffer springs 231 in the other group are stretched, so that when the plasticizing box 120 changes the rotation direction, at least one group of buffer springs 231 can provide buffering to ensure stability.

[0109] Embodiment 5:

[0110] This embodiment provides a silicone rubber preparation process. In addition to the technical features of the above embodiments, this embodiment also includes the following technical features.

[0111] refer to Figure 2 The bottom of the plasticating box 120 is provided with a pusher assembly, which includes:

[0112] A first push plate 150;

[0113] A second push plate 151, which is arranged parallel to the first push plate 150;

[0114] A buffer portion, which is disposed between the first push plate 150 and the second push plate 151;

[0115] A telescopic assembly connected to the second pushing plate 151 and pushing the second pushing plate 151 to drive the first pushing plate 150 to move;

[0116] The buffer part includes a first buffer sheet 152 and a second buffer sheet 153, the first buffer sheet 152 is connected to the first push plate 150, the second buffer sheet 153 is connected to the second push plate 151, and the first buffer sheet 152 and the second buffer sheet 153. The plasticizing box 120 is provided with a fifth opening 123 for pushing materials, and the first push plate 150 is placed in the fifth opening 123. The first push plate 150 is arranged parallel to the second push plate 151 and is connected to the first push plate 150 through the buffer part. The buffer part includes a first buffer sheet 152 and a second buffer sheet 153, the cross-sections of the first buffer sheet 152 and the second buffer sheet 153 are both arc-shaped, so that the first buffer sheet 152 and the second buffer sheet 153 have a certain elasticity, and the movement of the first push plate 150 can be buffered by their own elasticity to ensure stable pushing.

[0117] The above embodiments are only preferred embodiments of the present invention, rather than all embodiments. Other embodiments obtained based on the above embodiments by ordinary technicians in this field without making creative work should belong to the scope of protection of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A process for preparing silicone rubber, characterized in that: The following steps are involved: S1: soften the raw rubber and cut it into pieces; S2: Processing the softened and cut raw rubber through a plasticizer; S3: mixing the product in S2 with the compounding agent in a rubber mixer; S4: the product in S3 is made into different shapes in a calendering device; S5: adding a sulfiding agent to the product in S4; The plasticator comprises: a housing (100); A preheating box (110) is disposed on the upper portion of the housing (100); A plasticizing box (120) is disposed at the lower portion of the housing (100); A material pump assembly (140) is provided with a feed inlet and a discharge outlet, wherein the feed inlet corresponds to the plasticating box (120) and the discharge outlet corresponds to the preheating box (110); The plasticizing box (120) is provided with a first opening (121) for feeding and a second opening (122) for discharging, the preheating box (110) is provided with a third opening (111) for feeding and a fourth opening (114) for discharging, the first opening (121) is embedded in the fourth opening (114), a first material discharge plate (124) is provided in the first opening (121), a second material discharge plate (112) is provided in the fourth opening (114), the first material discharge plate (124) is provided with a first material discharge hole (125), the second material discharge plate (112) is provided with a second material discharge hole (113), and the plasticizing box (120) is provided with a rotating assembly, which drives the plasticizing box (120) to rotate so that the first material discharge hole (125) overlaps or is misaligned; The rotating assembly comprises: a support plate (160) disposed in the housing (100); A transmission gear (130) is placed on the plasticating box (120); A driving motor cooperates with a transmission gear (130) to drive the plasticating box (120) to rotate; Wherein, a rotating assembly (200) is provided between the plasticating box (120) and the supporting plate (160); The rotating assembly (200) comprises: a first guide ring (210) which is placed on the supporting plate (160); A first guide member (211) is placed on the plasticating box (120) and embedded in the first guide ring (210) and is capable of moving along the first guide ring (210); A second guide ring (220) is placed on the support plate (160); A first resistance member, which is placed on the plasticating box (120); A second resisting member, which is disposed in the second guide ring (220); The first resisting member and the second resisting member can resist each other, and the second resisting member is connected with a buffer assembly.

2. A process for preparing silicone rubber according to claim 1, characterized in that: The first resistance member comprises a first upper resistance block (213) and a first lower resistance block (212), the first upper resistance block (213) and the second upper resistance block (221) are rotatably connected, the second resistance member comprises a second upper resistance block (221) and a second lower resistance block (222), the second upper resistance block (221) and the second lower resistance block (222) are rotatably connected, the first upper resistance block (213) resists against the second lower resistance block (222), the second upper resistance block (221) resists against the first lower resistance block (212), and the second upper resistance block (221) is connected to the buffer assembly.

3. A process for preparing silicone rubber according to claim 2, characterized in that: The buffer assembly comprises: a guide groove (230) disposed on the second guide ring (220); A buffer spring (231) is disposed in the guide groove (230); A fixing plate (232) disposed in the guide groove (230); The second upper abutment block (221) is provided with a connecting portion (223) extending toward the guide groove (230); one end of the buffer spring (231) is fixed to the connecting portion (223), and the other end is fixed to the fixing plate (232).

4. A process for preparing silicone rubber according to claim 3, characterized in that: The second guide ring (220) is provided with a guide track (240), the second abutment member is connected with a guide block, the guide block is embedded in the guide track (240) and can move along the guide track (240), a bending portion (241) is provided at one end of the guide track (240) away from the fixed plate (232), a limiting column (242) is provided on one side of the bending portion (241), and the connecting portion (223) can abut against the limiting column (242).

5. A process for preparing silicone rubber according to claim 1, characterized in that: A material pushing assembly is provided at the bottom of the plasticating box (120), and the material pushing assembly comprises: a first material pushing plate (150); A second push plate (151) arranged parallel to the first push plate (150); A buffer portion, which is disposed between the first pushing plate (150) and the second pushing plate (151); A telescopic assembly connected to the second pushing plate (151) and pushing the second pushing plate (151) to drive the first pushing plate (150) to move; Wherein, the buffer part includes a first buffer sheet (152) and a second buffer sheet (153), the first buffer sheet (152) is connected to the first push plate (150), and the second buffer sheet (153) is connected to the second push plate (151), and the first buffer sheet (152) and the second buffer sheet (153) are arc-shaped and connect the first push plate (150) and the second push plate (151).

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