A silicone rubber sealing ring production equipment based on injection molding

Abstract

The present invention relates to a silicone rubber sealing ring production device based on injection molding, comprising a base, a fixing frame 1 being installed above the base, and a fixing frame 2 being provided on one side of the fixing frame 1. The present invention pushes the sliding seat to move in opposite directions by two sets of output rods, thereby making the two sets of molds fit together. During the movement of the sliding seat, the sealing block cooperates with the sealing cylinder to generate air pressure, so that the air pressure is transported in the low-temperature coolant tank and the coolant recovery tank, thereby generating negative air pressure and positive air pressure inside the two respectively, so that the coolant can flow from the low-temperature coolant tank with positive air pressure through the inside of the two sets of molds to the coolant recovery tank with negative air pressure. In this way, the coolant circulates to dissipate heat, thereby ensuring the quality of equipment processing. In addition, this structure uses the power of the equipment itself to complete the drive, and does not require the subsequent installation of additional power. It has a simple structure and low investment cost, which is conducive to large-scale promotion and use.

Description

Technical Field

[0001] The present invention relates to the technical field of silicone rubber sealing rings, and in particular to silicone rubber sealing ring production equipment based on injection molding. Background Art

[0002] Injection molding, also known as injection molding, is a process in which a raw material, such as thermoplastic or rubber, is heated and melted, then injected into a mold cavity under high pressure. After cooling and solidification, the resulting product is the desired shape and size. In the production of silicone rubber seals, injection molding can produce seals with smooth surfaces, precise dimensions, and complex structures. This process requires rubber seal injection molding production equipment, which integrates mixing, plasticizing, injection, and vulcanization processes.

[0003] The Chinese invention patent application with announcement number CN116922690A, a feeding assembly for an injection molding machine for producing rubber sealing rings, relates to the technical field of injection molding machine accessories, including a support assembly, a material guide assembly is arranged above the support assembly, a material pusher assembly is arranged at one end of the material guide assembly, a material discharge assembly is arranged above the material guide assembly, and the support assembly includes a support plate. The present invention solves the problem that when producing rubber sealing rings with continuous bending or umbrella-shaped structures, due to the different spatial distribution inside the mold cavity, if continuous feeding is still used for extrusion, it may cause local blockage inside the mold cavity and affect the quality of the rubber sealing ring; and the injection molding machine for the production of some annular rubber sealing rings needs to use a separate mixing device to mix the raw materials before use, which is inefficient and increases the cost; and when feeding into the injection molding machine, it is easy to add agglomerated raw materials, affecting product quality.

[0004] During use, the existing injection molding silicone rubber sealing ring production equipment needs to inject the material into the mold. At this time, it is necessary to quickly cool down the material in the mold to cool and shape it. The existing cooling method is generally cooling by coolant. However, in actual use, the coolant needs to be replaced after cooling for a long time to ensure the cooling effect. There are two cooling methods in the existing equipment. One is the old-fashioned coolant filling method. This method requires regular filling and replacement of the coolant, which affects production efficiency. The latter is a coolant circulation method. This method circulates the coolant through an external delivery pump, but the initial investment cost of the equipment and the modification cost and difficulty of the old equipment are relatively high.

[0005] Therefore, it is necessary to invent a silicone rubber sealing ring production equipment based on injection molding to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a silicone rubber sealing ring production equipment based on injection molding. After the equipment works to generate positive and negative air pressure in the sealing cylinder, the positive and negative air pressure are respectively transported to the inside of the low-temperature coolant tank and the coolant recovery tank, so that the positive and negative air pressure generated inside the two can produce a circulation of coolant inside the two sets of molds, thereby ensuring the constant temperature inside the mold. This structure is relatively simple and does not require an additional power source, reducing the cost of installation, so as to solve the problems in the prior art that there is no circulating cooling inside the mold and the installation of circulating cooling is difficult and costly.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a silicone rubber sealing ring production device based on injection molding, comprising a base, a fixing frame 1 is installed above the base, a fixing frame 2 is provided on one side of the fixing frame 1, and the fixing frame 2 is fixedly connected to the top of the base, sliding rods are installed between the four corners of the fixing frame 1 and the fixing frame 2, four groups of sliding rods are slidably connected to sliding seats, a push rod is installed on one side of the sliding seat, and the push rod is connected to the fixing frame 2 through, one side of the push rod is provided with one side of the mounting seat, and a mold is installed on one side of the mounting seat, and two groups of such a structure are symmetrically arranged above the base, the two groups of molds are symmetrically arranged, and an injection tank is provided between the two groups of molds, and the injection tank is connected to the top of the base;

[0008] A cooling assembly is provided above the base and is used to accelerate the cooling and molding of the silicone rubber sealing ring;

[0009] A circulation component is provided above the base and is used to drive the cooling component to work;

[0010] The buffer auxiliary component is set on one side of the mold and is used for buffering and assisting the production of silicone rubber sealing rings.

[0011] As a preferred solution of the present invention, the cooling assembly includes a sealing ring, which is installed at the edge of the mold groove of one group of molds, and a sealing groove is opened at the edge of the mold groove of another group of molds, and the sealing groove has the same shape as the sealing ring.

[0012] As a preferred solution of the present invention, cooling cavities are opened in the two groups of molds, a low-temperature coolant tank is installed above the base, a coolant recovery tank is provided on the opposite side of the low-temperature coolant tank, and the coolant recovery tank is connected to the top of the base, and the low-temperature coolant tank and the coolant recovery tank are connected to the internal hoses of the two groups of cooling cavities.

[0013] As a preferred solution of the present invention, the circulation component includes a sealing cylinder, which is installed on one side of the fixed frame and is connected to an external air pump. An output rod is connected through the sealing cylinder, and a sealing block is installed on one side of the output rod, and the sealing block is in contact with the inner wall of the sealing cylinder. The sealing block divides the interior of the sealing cylinder into a first space and a second space, and the connection position of the air pump is located in the first space inside the sealing cylinder.

[0014] As a preferred solution of the present invention, the side of the output rod away from the sealing block is fixedly connected to the sliding seat, and an air inlet nozzle is connected through the top of the sealing cylinder, and the air inlet nozzle is arranged on the inner wall of the first space.

[0015] As a preferred solution of the present invention, one side of the sealing cylinder is connected to a connecting tube 1, and a clamping ring is symmetrically installed on the inner wall of the connecting tube 1. One side of the clamping ring is fitted with a ball, and one side of the ball is fitted with a spring 1, and the spring 1 is fitted with the clamping ring on the other side.

[0016] As a preferred solution of the present invention, a connecting tube 2 is provided on one side of the connecting tube 1 and passes through the interior of the sealing cylinder, and the internal structures of the connecting tube 1 and the connecting tube 2 are the same, and the positions of the two groups of balls are opposite. The connecting tube 1 and the connecting tube 2 are located on the inner wall of the second space, and the connecting tube 1 is connected to the internal hose of the low-temperature coolant tank, and the connecting tube 2 is connected to the internal hose of the coolant recovery tank.

[0017] As a preferred solution of the present invention, the buffer auxiliary component includes a connecting shaft, the connecting shaft is installed on one side of the push rod, a limiting ring is installed on one side of the connecting shaft, a docking sleeve is sleeved on the connecting shaft, and multiple groups of guide rods are installed in a ring-shaped distribution on one side of the push rod, and the guide rods are connected through the edge of the docking sleeve.

[0018] As a preferred solution of the present invention, a fixing ring is fixedly connected to the inner wall of the docking tube, and the fixing ring is sleeved on the connecting shaft, and the fixing ring is fitted with the limiting ring. A spring 2 is sleeved on the connecting shaft, and one side of the spring 2 is fitted with the push rod, and the opposite side of the spring 2 is fitted with the side of the fixing ring away from the limiting ring.

[0019] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0020] The sliding seat is pushed to move in opposite directions by two sets of output rods, so that the two sets of molds are fitted together, and the injection tank can complete the filling of the flowing raw material into the mold cavity. During the movement of the sliding seat, the sealing block needs to move in the sealing cylinder, and the reciprocating movement will generate air pressure, which causes the air pressure to be transported in the low-temperature coolant tank and the coolant recovery tank, thereby generating negative air pressure and positive air pressure inside the two respectively, so that the coolant can be compressed from the low-temperature coolant tank with positive air pressure and pass through the inside of the two sets of molds, and then be absorbed by the coolant recovery tank with negative air pressure, thereby completing a cycle of the coolant. In this way, the coolant can circulate to dissipate heat, thereby ensuring the quality of equipment processing. In addition, this structure uses the power of the equipment itself to complete the drive, and does not require additional power to be installed later. It has a simple structure and low investment cost, which is conducive to large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the planing structure of the butt joint sleeve of the present invention;

[0024] Figure 3 This is a schematic diagram of the planed structure of the connecting pipe 1 and the connecting pipe 2 of the present invention;

[0025] Figure 4 Schematic diagram of the planing structure of the mold of the present invention;

[0026] Figure 5 Schematic diagram of the sealing ring structure of the present invention;

[0027] Figure 6 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0028] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point B in the middle.

[0029] Description of reference numerals:

[0030] 001, base; 101, fixing frame 1; 102, fixing frame 2; 103, sliding rod; 104, sliding seat; 105, push rod; 106, mounting seat; 107, mold; 108, injection tank; 002, cooling assembly; 201, sealing ring; 202, sealing groove; 203, cooling chamber; 204, low-temperature coolant tank; 205, coolant recovery tank; 003, circulation assembly; 301, sealing cylinder; 302, output rod; 303, sealing block; 304, air inlet nozzle; 305, connecting pipe 1; 306, retaining ring; 307, ball; 308, spring 1; 309, connecting pipe 2; 004, buffer auxiliary assembly; 401, connecting shaft; 402, limiting ring; 403, docking cylinder; 404, guide rod; 405, fixing ring; 406, spring 2. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figure 1-7 The silicone rubber sealing ring production equipment based on injection molding shown in the figure includes a base 001, a fixing frame 101 is installed above the base 001, a fixing frame 2 102 is provided on one side of the fixing frame 101, and the fixing frame 2 102 is fixedly connected to the top of the base 001, sliding rods 103 are installed between the four corners of the fixing frame 101 and the fixing frame 2 102, and sliding seats 104 are slidably connected to the four groups of sliding rods 103, a push rod 105 is installed on one side of the sliding seat 104, and the push rod 105 is connected to the fixing frame 2 102 through, a mounting seat 106 is provided on one side of the push rod 105, and a mold 107 is installed on one side of the mounting seat 106, and two groups of such a structure are symmetrically arranged above the base 001, the two groups of molds 107 are symmetrically arranged, and an injection tank 108 is provided between the two groups of molds 107, and the injection tank 108 is connected to the top of the base 001;

[0033] The cooling component 002 is arranged above the base 001 and is used to accelerate the cooling and molding of the silicone rubber sealing ring;

[0034] The circulation component 003 is arranged above the base 001 and is used to drive the cooling component 002 to work;

[0035] The buffer auxiliary component 004 is arranged on one side of the mold 107 and is used for buffering and assisting the production of silicone rubber sealing rings.

[0036] Furthermore, in the above structure, the cooling assembly 002 includes a sealing ring 201, which is installed at the edge of the mold groove of one group of molds 107, and a sealing groove 202 is opened at the edge of the mold groove of another group of molds 107, and the sealing groove 202 has the same shape as the sealing ring 201.

[0037] Through the cooperation of the sealing ring 201 and the sealing groove 202 , the two sets of molds 107 can fit together, so that the material can be injected into the space formed by the two sets of mold grooves.

[0038] Furthermore, in the above structure, cooling cavities 203 are opened in the two groups of molds 107, a low-temperature coolant tank 204 is installed above the base 001, a coolant recovery tank 205 is provided on the opposite side of the low-temperature coolant tank 204, and the coolant recovery tank 205 is connected to the top of the base 001, and the low-temperature coolant tank 204 and the coolant recovery tank 205 are connected to the internal hoses of the two groups of cooling cavities 203.

[0039] The coolant in the low-temperature coolant tank 204 is transported to the cooling cavity 203 to cool the material in the mold cavity, and then the coolant is recovered by the coolant recovery tank 205 .

[0040] Furthermore, in the above structure, the circulation component 003 includes a sealing cylinder 301, which is installed on one side of the fixed frame 101 and is connected to an external air pump. An output rod 302 is connected through the sealing cylinder 301, and a sealing block 303 is installed on one side of the output rod 302, and the sealing block 303 is in contact with the inner wall of the sealing cylinder 301. The sealing block 303 divides the interior of the sealing cylinder 301 into a first space and a second space, and the connection position of the air pump is located in the first space inside the sealing cylinder (301).

[0041] Through the cooperation between the sealing cylinder 301 and the sealing block 303 , when the output rod 302 drives the sealing block 303 to move, positive and negative pressures are generated in the two spaces in the sealing cylinder 301 .

[0042] Furthermore, in the above structure, the side of the output rod 302 away from the sealing block 303 is fixedly connected to the sliding seat 104, and the air inlet nozzle 304 is connected to the top of the sealing cylinder 301, and the air inlet nozzle 304 is set on the inner wall of the first space.

[0043] The gas from the air pump can be delivered to the first space in the sealing cylinder 301 through the air inlet nozzle 304, so that the sealing block 303 pushes the output rod 302 to move, and the output rod 302 moves by pushing the sliding seat 104 on one side, thereby moving the push rod 105. At this time, the pressure in the first space in the sealing cylinder 301 is relatively high, and the air in the second space in the sealing cylinder 301 is squeezed.

[0044] Furthermore, in the above structure, a connecting tube 305 is connected through one side of the sealing cylinder 301, and a snap ring 306 is symmetrically installed on the inner wall of the connecting tube 305. A ball 307 is fitted and connected to one side of the snap ring 306, and a spring 308 is fitted and connected to one side of the ball 307, and the spring 308 is fitted with the snap ring 306 on the other side.

[0045] The spring 1 308 can make the ball 307 fit on one side of the clamping ring 306, so that the internal space of the clamping ring 306 is sealed, and the connecting pipe 1 305 cannot pass through.

[0046] Furthermore, in the above structure, a connecting tube 2 309 is provided on one side of the connecting tube 1 305 and passes through the interior of the sealing tube 301, and the internal structures of the connecting tube 1 305 and the connecting tube 2 309 are the same, and the positions of the two groups of balls 307 are opposite. The connecting tube 1 305 and the connecting tube 2 309 are located on the inner wall of the first space, the connecting tube 1 305 is connected to the internal hose of the low-temperature coolant tank 204, and the connecting tube 2 309 is connected to the internal hose of the coolant recovery tank 205.

[0047] By moving the sealing block 303, the air in the second space is squeezed, and the air will squeeze the balls 307 in the connecting pipe 1 305, so that the air enters the low-temperature coolant tank 204 along the connecting pipe 1 305, increasing its internal pressure, thereby transporting the coolant to the cooling cavity 203. When the sealing block 303 is reset, negative pressure is generated in the first space. At this time, the balls 307 oppositely arranged in the connecting pipe 2 309 move, thereby extracting air from the coolant recovery tank 205, generating negative air pressure in the coolant recovery tank 205, and recovering the coolant in the cooling cavity 203 into the coolant recovery tank 205.

[0048] Furthermore, in the above structure, the buffer auxiliary component 004 includes a connecting shaft 401, which is installed on one side of the push rod 105, a limiting ring 402 is installed on one side of the connecting shaft 401, a docking tube 403 is sleeved on the connecting shaft 401, and multiple groups of guide rods 404 are installed in a ring-shaped distribution on one side of the push rod 105, and the guide rods 404 are connected through the edge of the docking tube 403.

[0049] Through the cooperation between the guide rod 404 and the docking sleeve 403 , the docking sleeve 403 can slide along the guide on the connecting shaft 401 , thereby ensuring a stable connection between the mounting seat 106 and the push rod 105 .

[0050] Furthermore, in the above structure, a fixing ring 405 is fixedly connected to the inner wall of the docking tube 403, and the fixing ring 405 is sleeved on the connecting shaft 401, and the fixing ring 405 is fitted with the limiting ring 402, a spring 2 406 is sleeved on the connecting shaft 401, and one side of the spring 2 406 is fitted with the push rod 105, and the opposite side of the spring 2 406 is fitted with the side of the fixing ring 405 away from the limiting ring 402.

[0051] By cooperating with the fixing ring 405 and the limiting ring 402, the sliding position of the docking sleeve 403 and the connecting shaft 401 is limited, and the second spring 406 can provide a buffer after the two sets of molds 107 are fitted together, and after the molds 107 are fitted together, the output rod 302 can continue to move a short distance, thereby ensuring that the air pressure is filled and the coolant in the cooling chamber 203 can be filled.

[0052] like Figure 1-7 As shown, the gas from the air pump is delivered to the first space in the sealing cylinder 301 through the air inlet nozzle 304. At this time, the gas squeezes the sealing block 303 to move along the sealing cylinder 301, so that the output rod 302 drives the sliding seat 104 to slide along the sliding rod 103, thereby bringing the two sets of molds 107 closer together. At the same time, the ball 307 in the connecting pipe 1 305 moves, so that the air in the second space of the sealing cylinder 301 is delivered to the low-temperature coolant tank 204, so that the coolant inside it can be delivered to the cooling cavity 203, and because the connecting shaft 401 can slide a short distance along the docking cylinder 403, the sealing block 303 can continue to slide a short distance, so that the air pressure fills the cooling water into the cooling cavity 203. When the sealing ring 201 and the sealing groove 202 of the two sets of molds 107 are completely fixed and fitted, At this time, the injection tank 108 will inject the material into the mold cavity. When the cooling is completed, the two sets of molds 107 need to be reset. At this time, the sealing block 303 slides along the sealing cylinder 301 to generate negative air pressure in the second space of the sealing cylinder 301. At this time, the ball 307 in the connecting tube 1 305 is reset under the action of the spring 1 308, and the ball 307 in the connecting tube 2 309 is reset at the same time, so that the negative air pressure in the sealing cylinder 301 draws air in the coolant recovery box 205, so that the coolant recovery box 205 draws the coolant in the cooling cavity 203. In this way, the coolant inside the mold 107 can be kept in a circulating state, thereby ensuring that the temperature inside the mold 107 is constant, and this method uses the power of the equipment itself to complete the cycle, and the difficulty and investment cost of later modification are relatively small.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A silicone rubber sealing ring production device based on injection molding, comprising a base (001), characterized in that: A fixing frame 1 (101) is installed above the base (001), a fixing frame 2 (102) is provided on one side of the fixing frame 1 (101), and the fixing frame 2 (102) is fixedly connected to the top of the base (001), a sliding rod (103) is installed between the four corners of the fixing frame 1 (101) and the fixing frame 2 (102), and a sliding seat (104) is slidably connected on the four groups of the sliding rods (103), and a push rod (103) is installed on one side of the sliding seat (104). 5), and the push rod (105) is connected to the second fixing frame (102), a mounting seat (106) is provided on one side of the push rod (105), a mold (107) is installed on one side of the mounting seat (106), and two groups of such a structure are symmetrically arranged above the base (001), the two groups of molds (107) are symmetrically arranged, and an injection tank (108) is provided between the two groups of molds (107), and the injection tank (108) is connected to the top of the base (001); A cooling assembly (002) is provided above the base (001) and is used to accelerate the cooling and molding of the silicone rubber sealing ring; A circulation component (003) is arranged above the base (001) and is used to drive the cooling component (002) to work; A buffer auxiliary component (004), provided on one side of the mold (107), is used for buffering and assisting the production of the silicone rubber sealing ring; A cooling cavity (203) is provided in the two groups of molds (107), a low-temperature cooling liquid tank (204) is installed above the base (001), a cooling liquid recovery tank (205) is provided on the side opposite to the low-temperature cooling liquid tank (204), and the cooling liquid recovery tank (205) is connected to the top of the base (001), and the low-temperature cooling liquid tank (204) and the cooling liquid recovery tank (205) are connected to the internal hoses of the two groups of cooling cavities (203); The circulation component (003) includes a sealing cylinder (301), the sealing cylinder (301) is installed on one side of the fixing frame (101), and the sealing cylinder (301) is connected to an external air pump, an output rod (302) is connected through the sealing cylinder (301), a sealing block (303) is installed on one side of the output rod (302), and the sealing block (303) is in contact with the inner wall of the sealing cylinder (301), and the sealing block (303) divides the interior of the sealing cylinder (301) into a first space and a second space, and the connection position of the air pump is located in the first space inside the sealing cylinder (301); The output rod (302) is fixedly connected to the sliding seat (104) on a side away from the sealing block (303); an air inlet nozzle (304) is connected through the top of the sealing cylinder (301), and the air inlet nozzle (304) is arranged on the inner wall of the first space; One side of the sealing cylinder (301) is connected to a connecting pipe (305), and a snap ring (306) is symmetrically installed on the inner wall of the connecting pipe (305). One side of the snap ring (306) is fitted with a ball (307), and one side of the ball (307) is fitted with a spring (308), and the spring (308) is fitted with the snap ring (306) on the other side. A connecting pipe 2 (309) is provided on one side of the connecting pipe 1 (305) and is connected to the inside of the sealing cylinder (301). The internal structures of the connecting pipe 1 (305) and the connecting pipe 2 (309) are the same, and the positions of the two groups of balls (307) are opposite. The connecting pipe 1 (305) and the connecting pipe 2 (309) are located on the inner wall of the second space. The connecting pipe 1 (305) is connected to the internal hose of the low-temperature coolant tank (204), and the connecting pipe 2 (309) is connected to the internal hose of the coolant recovery tank (205).

2. The silicone rubber sealing ring production equipment based on injection molding according to claim 1, characterized in that: The cooling component (002) includes a sealing ring (201), which is installed at the edge of the mold groove of one group of molds (107). A sealing groove (202) is opened at the edge of the mold groove of another group of molds (107), and the sealing groove (202) has the same shape as the sealing ring (201).

3. The silicone rubber sealing ring production equipment based on injection molding according to claim 1, characterized in that: The buffer auxiliary component (004) includes a connecting shaft (401), the connecting shaft (401) is installed on one side of the push rod (105), a limiting ring (402) is installed on one side of the connecting shaft (401), a docking sleeve (403) is sleeved on the connecting shaft (401), and multiple groups of guide rods (404) are installed in a circular distribution on one side of the push rod (105), and the guide rods (404) are connected to the edges of the docking sleeve (403) through.

4. The silicone rubber sealing ring production equipment based on injection molding according to claim 3, characterized in that: A fixing ring (405) is fixedly connected to the inner wall of the docking tube (403), and the fixing ring (405) is sleeved on the connecting shaft (401), and the fixing ring (405) is fitted with the limiting ring (402). A second spring (406) is sleeved on the connecting shaft (401), and one side of the second spring (406) is fitted with the push rod (105), and the opposite side of the second spring (406) is fitted with the side of the fixing ring (405) away from the limiting ring (402).

Images