A fluoropolymer-lined ball valve ball injection molding device and injection molding method thereof

Abstract

This invention relates to the field of fluoropolymer-lined ball valve processing technology, and discloses a fluoropolymer-lined ball valve ball injection molding device and its injection molding method. The device includes a clamping mechanism, which also includes a main body. A base is fixedly connected to the bottom of the main body, and a mounting bracket is fixedly connected to the side of the main body away from the base. After injection molding is completed, the coolant in the fixed tube and the telescopic tube can cool the outer wall of the mold, thereby accelerating the cooling speed of the injection-molded product and preventing the injection-molded product from adhering to the inner wall of the mold. After the mold is cooled, the drive motor is restarted. The drive motor drives the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it causes several molds to move away from each other. When the molds move away from each other, a squeezing force is applied to the telescopic tube. After the telescopic tube is squeezed, the coolant in the telescopic tube is forced into the vent pipe. The liquid entering the vent pipe then enters the water supply pipe through a circular pipe, and the liquid entering the water supply pipe flows into the cooling tank.

Description

Technical Field

[0001] This invention relates to the field of fluoropolymer-lined ball valve processing technology, specifically to a fluoropolymer-lined ball valve ball injection molding device and its injection molding method. Background Technology

[0002] A fluoropolymer-lined ball valve uses a ball with a circular through hole as the opening and closing element. The ball rotates around the center line of the valve body with the valve stem to open and close the valve. Fluoropolymer-lined ball valves are classified according to their driving method, such as manual fluoropolymer-lined ball valves, worm gear fluoropolymer-lined ball valves, pneumatic fluoropolymer-lined ball valves, and electric fluoropolymer-lined ball valves.

[0003] After injection molding is completed, the molded product is often in a high-temperature state and has not been completely cooled. The product in the high-temperature state is usually relatively soft and has a large adhesion force, making it difficult to remove the product from the mold. Forced removal will cause deformation of the molded product. To address the above problems, the following solutions are proposed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a fluoropolymer-lined ball valve ball injection molding device, including a fastening mechanism, and the fastening mechanism also includes a main body, a base is fixedly connected to the bottom of the main body, and a mounting bracket is fixedly connected to the side of the main body away from the base;

[0005] The sealing mechanism has a fixing plate inside the mounting bracket. A piston rod is fixedly connected to the side wall of the fixing plate, and a piston block is fixedly connected to the side of the piston rod away from the fixing plate.

[0006] The cooling mechanism has several fixed pipes fixedly connected to the inner wall of the mounting bracket. A telescopic pipe is fixedly connected to the side of the fixed pipe away from the mounting bracket, and an air outlet pipe is fixedly connected to the outer wall of the fixed pipe.

[0007] Preferably, the clamping mechanism also includes a drive motor fixedly connected to the side wall of the mounting frame. A bidirectional threaded rod is rotatably connected to the inner wall of the mounting frame. The end of the bidirectional threaded rod near the drive motor extends to the outside of the mounting frame and is fixedly connected to the output shaft of the drive motor. Several moving blocks are threaded on the outer wall of the bidirectional threaded rod. The top of the moving block on the left side is fixedly connected to the fixed plate. Molds are fixedly connected to the side walls of the several moving blocks respectively. When the drive motor is started, the drive motor drives the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it drives the several moving blocks to move closer to each other. The several molds move with the several moving blocks, thereby forming a sealed space inside the several molds.

[0008] Preferably, the clamping mechanism also includes sliding blocks that are fixedly connected to the side walls of several molds respectively. A limiting rod is fixedly connected to the inner wall of the mounting frame. The limiting rod passes through several sliding blocks and is slidably connected to several sliding blocks. A sealing groove is opened on the side wall of the left mold, and a sealing block is fixedly connected to the outer wall of the right mold. The shape and size of the sealing block are adapted to the shape and size of the sealing groove. After several molds move closer to each other, the sealing block enters the sealing groove, so that a sealed space can be formed inside the mold. When several moving blocks move relative to each other, under the limiting action of the limiting rod, the bidirectional threaded rod can limit the moving blocks and molds when they move closer to each other, preventing the moving blocks and molds from shaking during movement. Providing a more sealed space for injection molding can effectively prevent the injection molding material from overflowing from the mold or mold joints, thereby reducing the generation of defects or waste products on the product surface.

[0009] Preferably, the sealing mechanism also includes a piston cylinder fixedly connected to the top of the right-side movable block. The inner wall of the piston cylinder is slidably connected to the piston block, and a gas supply pipe is fixedly connected to the bottom of the piston cylinder. A sealing airbag is fixedly connected to the bottom of the right-side mold, and the side wall of the sealing airbag is fixedly connected to the gas supply pipe. The movement of several movable blocks when they approach each other provides power for the movement of the piston rod and piston block. When several movable blocks approach each other, they can drive the piston block into the piston cylinder. The piston block inside the piston cylinder slides inside the piston cylinder, thereby pushing the gas in the piston cylinder into the gas supply pipe. The gas in the gas supply pipe then enters the sealing airbag, thereby forcing the sealing airbag to expand. After the sealing airbag expands, it can seal the bottom of several molds, which can further improve the sealing performance inside the mold, thereby preventing the injection molding material from flowing out from the bottom of the mold during injection molding. After the sealing airbag expands, it can effectively seal the bottom of the mold. This seal can prevent the injection molding material from flowing out from the bottom of the mold, thereby reducing the scrap rate of the device during injection molding.

[0010] Preferably, the cooling mechanism also includes a circular tube fixedly connected to the end of the vent pipe away from the fixed tube. A push plate is slidably connected to the inner wall of the circular tube. A telescopic spring is fixedly connected to the side of the push plate near the vent pipe. The end of the telescopic spring away from the push plate is fixedly connected to the side wall of the circular tube. After injection molding is completed, the coolant in the fixed tube and the telescopic tube can cool the outer wall of the mold, thereby accelerating the cooling speed of the injection molded product and preventing the injection molded product from adhering to the inner wall of the mold. After the mold is cooled, the drive motor is restarted. The drive motor drives the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it drives several molds to move away from each other. When the several molds move away from each other, a squeezing force is applied to the telescopic tube. After the telescopic tube is squeezed, the coolant in the telescopic tube is forced into the vent pipe. The liquid in the vent pipe then enters the circular tube.

[0011] Preferably, the cooling mechanism further includes a fixed tube two fixedly connected to the end of the circular tube away from the outlet pipe. An elastic plastic rod is fixedly connected to the side of the push plate away from the telescopic spring. The end of the elastic plastic rod away from the push plate extends into the fixed tube two and is slidably connected to the fixed tube two. When the liquid in the cooling tank is filled, the coolant no longer enters the water supply pipe, thereby forcing the coolant to push the push plate to slide inside the circular tube, so that the telescopic spring is subjected to a compressive force. While the push plate is sliding, it drives the elastic plastic rod to slide inside the fixed tube two, thereby making the elastic plastic rod contact the injection molded product on the outer wall of the circular stop. After being pushed by the elastic plastic rod, the injection molded product is detached from the circular stop, thereby completing the automatic demolding of the injection molded product. This allows the device to complete the production of the product faster, thereby improving the production efficiency and output of the device.

[0012] Preferably, the cooling mechanism also includes a water supply pipe fixedly connected to the outer wall of the circular tube, a feed pipe fixedly connected to the top of the mounting frame, a circular stop rod fixedly connected to the bottom of the feed pipe, a cooling groove opened inside the circular stop rod, the cooling groove communicating with the water supply pipe, an annular baffle fixedly connected to the top of the main body, and a discharge pipe fixedly connected to the inner wall of the base. The liquid entering the circular tube then enters the water supply pipe, and the liquid entering the water supply pipe flows into the cooling groove, thereby cooling the part of the injection molded product that contacts the circular stop rod. This can prevent the injection molded product from adhering to the outer wall of the circular stop rod, thus ensuring that the injection molded product will not deform during demolding and ensuring the integrity of the injection molded product after demolding.

[0013] A fluoropolymer-lined ball valve ball injection molding device and its injection molding method include the following steps:

[0014] S1: Start the drive motor. The drive motor drives the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it drives several moving blocks to move closer to each other. Several molds follow the moving blocks and move back and forth, so that a sealed space is formed inside the molds.

[0015] S2: When several moving blocks approach each other, they can drive the piston block into the piston cylinder and slide inside the piston cylinder, thereby pushing the gas in the piston cylinder into the gas delivery pipe. The gas in the gas delivery pipe then enters the sealing airbag, causing the sealing airbag to expand.

[0016] S3: When several molds move away from each other, a squeezing force is applied to the telescopic tube. After the telescopic tube is squeezed, the coolant inside the telescopic tube is forced into the vent pipe. The liquid that enters the vent pipe flows into the cooling tank through the circular pipe and the water supply pipe.

[0017] S4: When the liquid in the cooling tank is filled, the coolant no longer enters the water supply pipe, thus forcing the coolant to push the push plate to slide inside the circular tube, causing the push plate to drive the elastic plastic rod to slide inside the fixed tube, thereby making the elastic plastic rod contact the injection molded product on the outer wall of the circular stop.

[0018] The present invention has the following beneficial effects:

[0019] 1. This invention utilizes the extrusion force of several molds moving away from each other to deliver coolant to a cooling tank, accelerating the cooling rate of the injection-molded product and preventing it from adhering to the outer wall of the circular baffle. After injection molding, the coolant in the fixed pipe and the telescopic pipe cools the outer wall of the mold, thereby accelerating the cooling rate of the injection-molded product and preventing it from adhering to the inner wall of the mold. After the mold is cooled, the drive motor is restarted, which drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes the several molds to move away from each other, thus preventing them from adhering to the inner wall of the mold. When the components move away from each other, a squeezing force is applied to the telescopic tube. After being squeezed, the coolant inside the telescopic tube is forced into the vent pipe. The liquid in the vent pipe then enters the circular tube, and the liquid in the circular tube then enters the water supply pipe. The liquid in the water supply pipe flows into the cooling tank, thereby cooling the part of the injection molded product that contacts the circular stop. This prevents the injection molded product from adhering to the outer wall of the circular stop, thus ensuring that the injection molded product will not deform during demolding and ensuring the integrity of the injection molded product after demolding.

[0020] 2. This invention utilizes the characteristic that the coolant in the cooling tank is filled and no more coolant will continue to enter the cooling tank. When the coolant in the cooling tank is filled, the coolant no longer enters the water supply pipe, thereby forcing the coolant to push the push plate to slide inside the circular tube, so that the telescopic spring is subjected to a compressive force. While the push plate is sliding, it drives the elastic plastic rod to slide inside the fixed tube, thereby making the elastic plastic rod contact the injection molded product on the outer wall of the circular stop. After being pushed by the elastic plastic rod, the injection molded product is detached from the circular stop, thereby completing the automatic demolding of the injection molded product. This allows the device to complete the production of products faster, thereby improving the production efficiency and output of the device.

[0021] 3. This invention starts the drive motor, which drives the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it causes several moving blocks to move closer to each other. Several molds follow the moving blocks and move closer to each other. After the molds move closer to each other, the sealing block enters the sealing groove, thus forming a sealed space inside the mold. When the moving blocks move closer to each other, the limiting rod, under the limiting action of the limiting rod, can limit the movement of the moving blocks and molds, preventing them from shaking during movement. This provides a more sealed space for injection molding, effectively preventing the injection material from overflowing from the mold or mold joints, thereby reducing the generation of defects or waste products on the product surface.

[0022] 4. This invention utilizes the movement of several moving blocks as they approach each other to provide power for the movement of the piston rod and piston block. When the moving blocks approach each other, they can drive the piston block into the piston cylinder. The piston block inside the piston cylinder slides inside the piston cylinder, thereby pushing the gas inside the piston cylinder into the gas delivery pipe. The gas in the gas delivery pipe then enters the sealing airbag, which forces the sealing airbag to expand. After the sealing airbag expands, it can seal the bottom of several molds, which can further improve the sealing performance of the mold and prevent the injection molding material from flowing out of the bottom of the mold during injection molding. The expansion of the sealing airbag can effectively seal the bottom of the mold. This seal can prevent the injection molding material from flowing out of the bottom of the mold, thereby reducing the scrap rate of the device during injection molding. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an exploded view of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the contact mechanism of the present invention;

[0027] Figure 4 This is a partial structural diagram of the contact mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the sealing mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the cooling mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged diagram of A in the middle;

[0031] Figure 8 This is a schematic diagram of the workflow of the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] In the diagram: 1. Adhesive Mechanism; 101. Main Body; 102. Base; 103. Mounting Frame; 104. Drive Motor; 105. Bidirectional Threaded Rod; 106. Moving Block; 107. Mold; 108. Sliding Block; 109. Limiting Rod; 110. Sealing Groove; 111. Sealing Block; 2. Sealing Mechanism; 201. Fixing Plate; 202. Piston Rod; 203. Piston Block; 204. Piston Cylinder; 205. Air Supply Pipe; 206. Sealing Airbag; 3. Cooling Mechanism; 301. Fixing Pipe One; 302. Telescopic Pipe; 303. Air Outlet Pipe; 304. Circular Pipe; 305. Push Plate; 306. Telescopic Spring; 307. Fixing Pipe Two; 308. Elastic Plastic Rod; 309. Water Supply Pipe; 310. Feed Pipe; 311. Circular Stop Rod; 312. Cooling Groove; 313. Annular Baffle; 314. Discharge Pipe. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figure 1 - Figure 3 The present invention is a ball injection molding device for a fluoropolymer-lined ball valve, including a fastening mechanism 1, and a main body 101 on the fastening mechanism 1. A base 102 is fixedly connected to the bottom of the main body 101, and a mounting bracket 103 is fixedly connected to the side of the main body 101 away from the base 102.

[0036] The sealing mechanism 2 has a fixing plate 201 installed inside the mounting bracket 103. A piston rod 202 is fixedly connected to the side wall of the fixing plate 201, and a piston block 203 is fixedly connected to the side of the piston rod 202 away from the fixing plate 201.

[0037] The cooling mechanism 3 has several fixed pipes 301 fixedly connected to the inner wall of the mounting bracket 103. A telescopic pipe 302 is fixedly connected to the side of the fixed pipe 301 away from the mounting bracket 103. An air outlet pipe 303 is fixedly connected to the outer wall of the fixed pipe 301.

[0038] The fastening mechanism 1 also includes a drive motor 104 fixedly connected to the side wall of the mounting frame 103. A bidirectional threaded rod 105 is rotatably connected to the inner wall of the mounting frame 103. One end of the bidirectional threaded rod 105 near the drive motor 104 extends to the outside of the mounting frame 103 and is fixedly connected to the output shaft of the drive motor 104. Several moving blocks 106 are threadedly sleeved on the outer wall of the bidirectional threaded rod 105. The top of the moving block 106 on the left side is fixedly connected to the fixed plate 201. Molds 107 are fixedly connected to the side walls of the several moving blocks 106 respectively. When the drive motor 104 is started, the drive motor 104 drives the bidirectional threaded rod 105 to rotate. After the bidirectional threaded rod 105 rotates, it drives the several moving blocks 106 to move closer to each other. The several molds 107 move with the several moving blocks 106, thereby forming a sealed space inside the several molds 107.

[0039] The clamping mechanism 1 also includes sliding blocks 108 that are fixedly connected to the side walls of several molds 107. A limiting rod 109 is fixedly connected to the inner wall of the mounting bracket 103. The limiting rod 109 passes through several sliding blocks 108 and is slidably connected to them. A sealing groove 110 is provided on the side wall of the left mold 107, and a sealing block 111 is fixedly connected to the outer wall of the right mold 107. The shape and size of the sealing block 111 are adapted to the shape and size of the sealing groove 110. When several molds 107 approach each other, the sealing block 111... 1. Entering the sealing groove 110, a sealed space is formed inside the mold 107. When several moving blocks 106 move relative to each other, under the limiting action of the limiting rod 109, the bidirectional threaded rod 105 drives the moving blocks 106 and the mold 107 to approach each other. The limiting rod 109 can limit them, preventing the moving blocks 106 and the mold 107 from shaking during movement. Providing a more sealed space for injection molding can effectively prevent the injection material from overflowing from the mold or mold joint, thereby reducing the generation of defects or waste products on the product surface.

[0040] Example 2, please refer to Figure 4 - Figure 8This invention relates to a fluoropolymer-lined ball valve ball injection molding device. Based on Example 1, the sealing mechanism 2 further includes a piston cylinder 204 fixedly connected to the top of the right-side movable block 106. The inner wall of the piston cylinder 204 is slidably connected to the piston block 203. A gas supply pipe 205 is fixedly connected to the bottom of the piston cylinder 204. A sealing airbag 206 is fixedly connected to the bottom of the right-side mold 107. The side wall of the sealing airbag 206 is fixedly connected to the gas supply pipe 205. The movement of several movable blocks 106 as they approach each other provides power for the movement of the piston rod 202 and the piston block 203. When several movable blocks 106 approach each other, they can drive the piston block 203 into the piston cylinder 204. The piston block 203 inside the piston cylinder 204 slides inside the piston cylinder 204, thereby pushing the gas inside the piston cylinder 204 into the gas supply pipe 205. The gas entering the gas supply pipe 205 then enters the sealing airbag 206, thereby forcing the sealing airbag 206 to expand. After the sealing airbag 206 expands, it can seal the bottom of several molds 107, which can further improve the sealing performance of the mold 107, thereby preventing the injection molding material from flowing out of the bottom of the mold 107 during injection molding. The expansion of the sealing airbag can effectively seal the bottom of the mold. This seal can prevent the injection molding material from flowing out of the bottom of the mold, thereby reducing the scrap rate of the device during injection molding.

[0041] The cooling mechanism 3 also includes a circular tube 304 fixedly connected to the end of the vent pipe 303 away from the fixed tube 301. A push plate 305 is slidably connected to the inner wall of the circular tube 304. A telescopic spring 306 is fixedly connected to the side of the push plate 305 near the vent pipe 303. The end of the telescopic spring 306 away from the push plate 305 is fixedly connected to the side wall of the circular tube 304. After injection molding is completed, the coolant in the fixed tube 301 and the telescopic tube 302 can cool the outer wall of the mold 107, thereby accelerating the cooling speed of the injection molded product. To prevent the injection molded product from adhering to the inner wall of the mold 107, after the mold 107 has cooled down, the drive motor 104 is restarted. The drive motor 104 drives the bidirectional threaded rod 105 to rotate. After the bidirectional threaded rod 105 rotates, it drives several molds 107 to move away from each other. When the several molds 107 move away from each other, a squeezing force is applied to the telescopic tube 302. After the telescopic tube 302 is squeezed, the coolant in the telescopic tube 302 is forced to enter the vent pipe 303. The liquid in the vent pipe 303 then enters the circular tube 304.

[0042] The cooling mechanism 3 also includes a fixed tube 307 fixedly connected to the end of the circular tube 304 away from the exhaust pipe 303. An elastic plastic rod 308 is fixedly connected to the side of the push plate 305 away from the telescopic spring 306. The end of the elastic plastic rod 308 away from the push plate 305 extends into the fixed tube 307 and is slidably connected to the fixed tube 307. When the liquid in the cooling tank 312 is filled, the coolant no longer enters the water supply pipe 309, thereby forcing the coolant to push the push plate 305 to slide in the circular tube 304, so that the telescopic spring 306 is subjected to a squeezing force. While the push plate 305 is sliding, it drives the elastic plastic rod 308 to slide in the fixed tube 307, thereby making the elastic plastic rod 308 contact the injection molded product on the outer wall of the circular stop bar 311. After being pushed by the elastic plastic rod 308, the injection molded product falls off the circular stop bar 311, thereby completing the automatic demolding of the injection molded product. This allows the device to complete the production of the product faster, thereby improving the production efficiency and output of the device.

[0043] The cooling mechanism 3 also includes a water supply pipe 309 fixedly connected to the outer wall of the circular tube 304. The top of the mounting bracket 103 is fixedly connected to a feed pipe 310, and the bottom end of the feed pipe 310 is fixedly connected to a circular stop bar 311. A cooling groove 312 is opened inside the circular stop bar 311, and the cooling groove 312 is connected to the water supply pipe 309. The top of the main body 101 is fixedly connected to an annular baffle 313, and the inner wall of the base 102 is fixedly connected to a discharge pipe 314. The liquid entering the circular tube 304 then enters the water supply pipe 309, and the liquid entering the water supply pipe 309 flows into the cooling groove 312. This allows the liquid flowing into the cooling groove 312 to cool the part of the injection molded product that contacts the circular stop bar 311. This prevents the injection molded product from adhering to the outer wall of the circular stop bar 311, thus ensuring that the injection molded product will not deform during demolding and ensuring the integrity of the injection molded product after demolding.

[0044] The injection molding method of this injection molding device includes the following steps:

[0045] S1: Start the drive motor 104. The drive motor 104 drives the bidirectional threaded rod 105 to rotate. After the bidirectional threaded rod 105 rotates, it drives several moving blocks 106 to move closer to each other. Several molds 107 follow the moving blocks 106 to move back and forth, so that a sealed space is formed inside the molds 107.

[0046] S2: When several moving blocks 106 approach each other, they can drive the piston block 203 into the piston cylinder 204 and slide inside the piston cylinder 204, thereby pushing the gas in the piston cylinder 204 into the gas supply pipe 205. The gas in the gas supply pipe 205 then enters the sealing airbag 206, causing the sealing airbag 206 to expand.

[0047] S3: When several molds 107 are far apart, a squeezing force is applied to the telescopic tube 302. After the telescopic tube 302 is squeezed, the coolant in the telescopic tube 302 is forced to enter the air outlet pipe 303. The liquid entering the air outlet pipe 303 flows into the cooling tank 312 through the circular pipe 304 and the water supply pipe 309.

[0048] S4: When the liquid in the cooling tank 312 is filled, the coolant no longer enters the water supply pipe 309, thereby forcing the coolant to push the push plate 305 to slide in the circular pipe 304, so that the push plate 305 drives the elastic plastic rod 308 to slide in the fixed pipe 307, thereby making the elastic plastic rod 308 contact the injection molded product on the outer wall of the circular stop bar 311.

[0049] One specific application of this embodiment is:

[0050] When injection molding is required for the PTFE-lined ball valve ball, the drive motor 104 is first started. The drive motor 104 drives the bidirectional threaded rod 105 to rotate. After the bidirectional threaded rod 105 rotates, it drives several moving blocks 106 to move closer together. Several molds 107 follow the moving blocks 106 and move back and forth. After the molds 107 move closer together, the sealing block 111 enters the sealing groove 110, thus forming a sealing space within the mold 107. When the moving blocks 106 move back and forth, the limiting rod 109 limits the movement of the bidirectional threaded rod 105 as it drives the moving blocks 106 and molds 107 to move closer together, preventing them from shaking during movement. In this configuration, when several moving blocks 106 approach each other, they can drive piston block 203 into piston cylinder 204. Piston block 203 slides inside piston cylinder 204, pushing the gas inside piston cylinder 204 into gas delivery pipe 205. The gas in gas delivery pipe 205 then enters sealing airbag 206, forcing sealing airbag 206 to inflate. After inflating, sealing airbag 206 seals the bottom of several molds 107, further improving the sealing performance of molds 107 and preventing injection molding material from flowing out of the bottom of molds 107 during injection. After sealing molds 107, injection molding material is then filled through feed pipe 310 and circular stop bar 311. Within the sealed space formed inside mold 107, the injection molding of the fluoropolymer-lined ball valve ball is completed. After injection molding, the coolant in the fixed pipe 301 and the telescopic pipe 302 cools the outer wall of mold 107, thereby accelerating the cooling speed of the injection-molded product and preventing it from adhering to the inner wall of mold 107. After cooling mold 107 is completed, drive motor 104 is restarted, driving bidirectional threaded rod 105 to rotate. The rotation of bidirectional threaded rod 105 causes several molds 107 to move away from each other. When the molds 107 move away from each other, a compressive force is applied to telescopic pipe 302. After being compressed, telescopic pipe 302 is forced to enter the vent pipe 303. The liquid in tube 3 then enters the circular tube 304, and the liquid in the circular tube 304 then enters the water supply pipe 309. The liquid in the water supply pipe 309 flows into the cooling tank 312, thereby cooling the part of the injection molded product that contacts the circular stop 311. This prevents the injection molded product from adhering to the outer wall of the circular stop 311, ensuring that the injection molded product will not deform during demolding and ensuring the integrity of the injection molded product after demolding. When the cooling tank 312 is full, the coolant no longer enters the water supply pipe 309, thus forcing the coolant to push the push plate 305 to slide within the circular tube 304, causing the telescopic spring 306 to be subjected to a compressive force. As the push plate 305 slides...The elastic plastic rod 308 slides within the fixed tube 307, causing it to contact the injection-molded product on the outer wall of the circular stop 311. Pushed by the elastic plastic rod 308, the injection-molded product detaches from the circular stop 311 and falls into the annular baffle 313 and the discharge pipe 314, facilitating the collection of the finished injection-molded product by workers.

[0051] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fluoropolymer-lined ball valve ball injection molding device, comprising a clamping mechanism (1), wherein the clamping mechanism (1) further comprises a main body (101), a base (102) is fixedly connected to the bottom of the main body (101), and a mounting bracket (103) is fixedly connected to the side of the main body (101) away from the base (102), characterized in that, Also includes: The sealing mechanism (2) has a fixing plate (201) inside the mounting bracket (103), and a piston rod (202) is fixedly connected to the side wall of the fixing plate (201). A piston block (203) is fixedly connected to the side of the piston rod (202) away from the fixing plate (201). The cooling mechanism (3) has two fixed pipes (301) fixedly connected to the inner wall of the mounting bracket (103). A telescopic pipe (302) is fixedly connected to the side of the fixed pipe (301) away from the mounting bracket (103). An air outlet pipe (303) is fixedly connected to the outer wall of the fixed pipe (301). The inner wall of the mounting bracket (103) is rotatably connected to a bidirectional threaded rod (105), and two movable blocks (106) are threadedly sleeved on the outer wall of the bidirectional threaded rod (105). The top of the movable block (106) on the left side is fixedly connected to the fixing plate (201), and molds (107) are fixedly connected to the side walls of the two movable blocks (106) respectively. The sealing mechanism (2) also includes a piston cylinder (204) fixedly connected to the top of the right movable block (106). The inner wall of the piston cylinder (204) is slidably connected to the piston block (203). The bottom of the piston cylinder (204) is fixedly connected to an air supply pipe (205). The bottom of the mold (107) on the right side is fixedly connected to a sealing airbag (206). The side wall of the sealing airbag (206) is fixedly connected to the air supply pipe (205). The cooling mechanism (3) also includes a circular tube (304) fixedly connected to the end of the air outlet pipe (303) away from the fixed pipe (301). A push plate (305) is slidably connected to the inner wall of the circular tube (304). A telescopic spring (306) is fixedly connected to the side of the push plate (305) near the air outlet pipe (303). The end of the telescopic spring (306) away from the push plate (305) is fixedly connected to the side wall of the circular tube (304). The cooling mechanism (3) also includes a fixed tube two (307) fixedly connected to one end of the circular tube (304) away from the air outlet (303). An elastic plastic rod (308) is fixedly connected to the side of the push plate (305) away from the telescopic spring (306). One end of the elastic plastic rod (308) away from the push plate (305) extends into the fixed tube two (307) and is slidably connected to the fixed tube two (307). The cooling mechanism (3) also includes a water supply pipe (309) fixedly connected to the outer wall of the circular pipe (304). The top of the mounting bracket (103) is fixedly connected to a feed pipe (310). The bottom end of the feed pipe (310) is fixedly connected to a circular stop bar (311). A cooling groove (312) is opened in the circular stop bar (311). The cooling groove (312) is connected to the water supply pipe (309). The top of the main body (101) is fixedly connected to an annular baffle (313). The inner wall of the base (102) is fixedly connected to a discharge pipe (314).

2. The fluoropolymer-lined ball valve ball injection molding device according to claim 1, characterized in that: The fastening mechanism (1) also includes a drive motor (104) fixedly connected to the side wall of the mounting bracket (103). The end of the bidirectional threaded rod (105) near the drive motor (104) extends to the outside of the mounting bracket (103) and is fixedly connected to the output shaft of the drive motor (104).

3. The fluoropolymer-lined ball valve ball injection molding device according to claim 2, characterized in that: The clamping mechanism (1) also includes sliding blocks (108) that are fixedly connected to the side walls of the two molds (107). A limiting rod (109) is fixedly connected to the inner wall of the mounting bracket (103). The limiting rod (109) passes through the two sliding blocks (108) and is slidably connected to the two sliding blocks (108). A sealing groove (110) is provided on the side wall of the mold (107) on the left side. A sealing block (111) is fixedly connected to the outer wall of the mold (107) on the right side. The shape and size of the sealing block (111) are adapted to the shape and size of the sealing groove (110).

4. A method for injection molding a fluoropolymer-lined ball valve ball, using the fluoropolymer-lined ball valve ball injection molding apparatus as described in claim 3, characterized in that... Includes the following steps: S1: Start the drive motor (104), the drive motor (104) drives the bidirectional threaded rod (105) to rotate, the bidirectional threaded rod (105) rotates and drives the two moving blocks (106) to move closer to each other, the two molds (107) follow the two moving blocks (106) to move relative to each other, so that a sealed space is formed in the two molds (107); S2: When the two moving blocks (106) approach each other, they can drive the piston block (203) into the piston cylinder (204) and slide inside the piston cylinder (204), thereby pushing the gas in the piston cylinder (204) into the gas delivery pipe (205). The gas in the gas delivery pipe (205) then enters the sealing airbag (206) to inflate the sealing airbag (206). S3: When the two molds (107) move away from each other, a squeezing force is applied to the telescopic tube (302). After the telescopic tube (302) is squeezed, the coolant in the telescopic tube (302) is forced into the air outlet pipe (303). The liquid entering the air outlet pipe (303) flows into the cooling tank (312) through the circular pipe (304) and the water supply pipe (309). S4: When the liquid in the cooling tank (312) is filled, the coolant no longer enters the water supply pipe (309), thereby forcing the coolant to push the push plate (305) to slide in the circular pipe (304), so that the push plate (305) drives the elastic plastic rod (308) to slide in the fixed pipe (307), thereby making the elastic plastic rod (308) contact the injection molded product on the outer wall of the circular stop (311).

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