A precision valve body extrusion forming combined die

Abstract

The application discloses a precision valve body extrusion forming combined die, which comprises an extrusion part, the outer side of the extrusion part is provided with a protection device, and the outer side of the protection device is provided with a sealing and heat insulation device. The precision valve body extrusion forming combined die can switch the heat preservation and cooling according to different process requirements through the sealing and heat insulation device, and can meet the requirements of the precision manufacturing dustproof process. The protection device can protect the workers, avoid the damage of the die seat caused by the external force collision during the work or the injury caused by the hand of the user, and increase the safety of the device.

Description

Technical Field

[0001] This invention relates to a precision valve body extrusion molding die, belonging to the field of valve body processing technology. Background Technology

[0002] Precision valve bodies are key control components in the precision valve industry. In the production process, metal materials are heated and then extruded using a die. Different applications place different demands on the valve body. For example, rapid cooling may be needed to increase strength and hardness while reducing plasticity; other valve bodies require slow cooling to improve microstructure, homogenize composition, refine grains, improve mechanical properties, and reduce residual stress. Simultaneously, lowering hardness improves plasticity and toughness, preventing uneven internal stress caused by rapid cooling after high-temperature extrusion, which could affect product performance. Currently, existing precision valve body extrusion molds cannot meet the complex extrusion process, nor can they protect the processing area during manufacturing, meet the dust-proof requirements of precision extrusion manufacturing, or provide overall dust protection for the entire device.

[0003] Therefore, a new precision valve body extrusion molding die is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a precision valve body extrusion molding die to solve the problems mentioned in the background art.

[0005] A precision valve body extrusion molding die includes an extrusion component, a protective device is provided on the outside of the extrusion component, and a sealing and heat insulation device is provided on the outside of the protective device.

[0006] Furthermore, the extrusion component includes a top plate, a base, a fixed seat, a guide rod, and an adjusting seat; the fixed seat is disposed on the base, the top plate is fixedly connected to the fixed seat via the guide rod, the adjusting seat is disposed between the top plate and the fixed seat, the adjusting seat moves along the guide rod, a hydraulic push rod is disposed above the top plate, the bottom of the hydraulic push rod penetrates the top plate and is fixedly connected to the adjusting seat, and a mold base is fixedly connected to the opposite side of the adjusting seat and the fixed seat.

[0007] Furthermore, it also includes a mold core mounting assembly, which includes an electric push rod, a sliding sleeve, and a mold core. The electric push rod is fixedly connected to the sliding sleeve, the sliding sleeve is disposed within the mold base, the mold core is disposed within the sliding sleeve, and the electric push rod is disposed within the adjusting seat and / or the fixed seat.

[0008] When it is necessary to replace or install the mold core, the sliding sleeve is pushed out using an electric push rod.

[0009] Furthermore, a slider is provided on the side of the mold core, and a fixing groove is provided on the sliding sleeve, into which the slider is engaged.

[0010] The mold core is inserted into the sliding sleeve by the sliders around it, and then fixed by rotating the fixing groove 1602. When it needs to be removed, it can be removed by rotating it back to the original position of the slider, which is convenient and quick.

[0011] Furthermore, the protective device includes a fixed plate, a limiting rod, and a protective cover. The fixed plate is disposed on both sides of the top plate, and the two ends of the limiting rod are respectively connected to the fixed plate and the fixed base. A movable block is disposed on the limiting rod, and a protective cover is disposed on the movable block.

[0012] Furthermore, it also includes an adjustment device, which includes a squeezing block, a rubber block, a handle, a pull plate, and a connecting rod. The handle is located on the side of the protective cover away from the limiting rod and is fixedly connected to the protective cover. The squeezing block is located between the protective cover and the limiting rod. The pull plate is located between the handle and the protective cover. The squeezing block and the pull plate are fixedly connected by a connecting rod passing through the protective cover. A rubber block is provided between the squeezing block and the protective cover.

[0013] This invention provides a protective device to safeguard workers, preventing damage to the mold base from external impacts during operation or accidental injury from users putting their hands inside, thus increasing the safety of the device.

[0014] Invention Principle: The operator grips the handles with both hands and firmly holds the pull plate, thereby pulling the extrusion block outward through the connecting rod to separate it from the limiting rod. This reduces the contact friction between the protective cover and the limiting rod, facilitating position adjustment of the protective cover. The operator can easily adjust the position of the protective cover by moving the movable block on the limiting rod. After adjusting it to the mold base closing position, the handles are released. The rubber block, due to the disappearance of the extrusion pressure, uses its own elasticity to push the extrusion block back to its initial position, thus pressing it tightly against the limiting rod. The contact friction limits the position of the protective cover, increasing stability. Then, the hydraulic push rod is activated, which drives the adjusting seat to move up and down, thereby causing the mold base to close and extruding the forging through the mold core. The protective cover protects the device and the operator during processing, preventing damage to the mold base from external impacts or accidental injury from the operator putting their hands inside, increasing the safety of the device. After processing, the protective cover can be moved to the top using the same method, making it easy for the operator to remove the forging for subsequent processing. It can protect the equipment and personnel during the processing, preventing damage caused by external impacts to the mold base or accidental injury caused by personnel putting their hands in, thus increasing the safety of the equipment.

[0015] Furthermore, it also includes a ranging sensor, which is mounted on the protective cover.

[0016] Furthermore, the sealing and heat insulation device includes a dustproof and heat-insulating flexible board, which consists of a waterproof layer, a heat insulation layer, a protective film, and a memory metal strip from the inside out. The heat insulation layer has a temperature-regulating inner flexible hose inside, and the waterproof layer has temperature-regulating through holes evenly distributed on it. The temperature-regulating through holes are connected to the temperature-regulating inner flexible hose.

[0017] This invention uses a sealed heat insulation device to switch between heat preservation and cooling according to different process requirements by changing the working mode, while also meeting the dust prevention requirements of precision manufacturing processes.

[0018] Furthermore, it also includes a cooling valve and a cooling pipe, with the inner temperature regulating hose connected to the cooling valve through the cooling pipe.

[0019] The sealing and heat insulation device can switch between heat preservation and cooling modes according to different process requirements, while also meeting the dustproof requirements of precision manufacturing processes. When heat preservation is required, the sealing and heat insulation device is installed around the extruded component; when rapid cooling is required, the cooling valve is connected to an external cooling medium pipe, such as cooling water, cooling oil, or cooling gas, which is then input through a pressure pump. The cooling medium is then evenly sprayed onto the extruded component through the cooling pipe and the sealing and heat insulation device. In this invention, the cooling valve and cooling pipe are located inside the base. After the dustproof and heat-insulating flexible board is extended, its internal temperature-regulating flexible hose 606 is connected to the cooling pipe 7b. The opening of the protective groove 702 is equipped with an elastic sealing strip, which provides a relative seal between the flexible board and the dustproof and heat-insulating flexible board, allowing the cooling medium to enter the interior of the dustproof and heat-insulating flexible board from the outside.

[0020] Furthermore, the sealing and heat insulation device also includes a flexible board retracting component and an adjusting plate. A connecting plate is provided on the side of the fixing plate, and an insertion port is provided on the connecting plate. The adjusting plate is inserted into the insertion port. One end of the dustproof and heat-insulating flexible board is fixedly connected to the flexible board retracting component, and the other end of the dustproof and heat-insulating flexible board is fixedly connected to the adjusting plate.

[0021] The connecting plate of this invention is provided with a socket, and a magnetic block is provided on the socket. The adjusting plate is inserted into the socket and magnetically fixed by the magnetic block. The adjusting plate and the connecting plate are detachably connected, which facilitates the disassembly of the dustproof and heat-insulating flexible board using the adjusting plate. In some embodiments, auxiliary plates are welded to the surfaces of both ends of the adjusting plate, and the top and bottom surfaces of the auxiliary plates are provided with anti-slip textures. The operator can easily adjust and move the adjusting plate using the auxiliary plates. The anti-slip textures increase the contact friction between the auxiliary plates and the palm of the operator, increasing stability.

[0022] Furthermore, the flexible board retraction component includes a roller, a rewind spring, and a spring fixing shaft. A protective groove is provided on the side of the base. The roller, the rewind spring, and the spring fixing shaft are all disposed within the protective groove. The spring fixing shaft is fixedly connected to the inner wall of the protective groove. The rewind spring is fixedly installed on the spring fixing shaft. The roller is disposed on the rewind spring. One end of the dustproof and heat-insulating flexible board is fixedly connected to the roller.

[0023] After use, the flexible board retraction component can quickly and automatically retract into the protective tank. The memory metal strip supports the temperature-regulating inner hose during the recycling process, preventing it from deforming and becoming blocked. In addition, the memory metal strip's recovery drive provides power during the recycling process.

[0024] Furthermore, a connecting plate is provided on the side of the fixing plate, and the sealing and heat insulation device also includes a flexible sheet electric winding and unwinding component. The flexible sheet electric winding and unwinding component includes a flexible sheet winding and unwinding motor, a winding and unwinding spool, and a storage box. The storage box is provided on the connecting plate, and the flexible sheet winding and unwinding motor and the winding and unwinding spool are both provided in the storage box. One end of the dustproof and heat-insulating flexible sheet is wound around the winding and unwinding spool.

[0025] Furthermore, the flexible circuit board electric take-up and take-down component includes multiple take-up and take-down reels, which are placed in parallel and connected by a synchronous rotation device. The synchronous rotation device includes a first adapter, a rotating connecting shaft, and a second adapter, with both ends of the rotating connecting shaft respectively disposed in the connecting holes of the first adapter and the second adapter.

[0026] Beneficial effects: The precision valve body extrusion molding die of the present invention, through a sealing and heat insulation device, can switch between heat preservation and cooling according to different process requirements by changing the working mode, while meeting the dust prevention requirements of precision manufacturing processes. The protective device protects workers, preventing damage to the die base from external impacts during operation or accidental injury from personnel putting their hands inside, thus increasing the safety of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the precision valve body extrusion molding die of the present invention; Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention; Figure 3 This is a partial structural schematic diagram of the fixing base of the present invention; Figure 4 This is a partial structural diagram of the protective cover of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the dustproof and heat-insulating flexible board of the present invention; Figure 6 This is a schematic diagram of the flexible board take-up and take-down component of the present invention; Figure 7 This is a schematic diagram of the slider mounting structure of the present invention; Figure 8 This is a schematic diagram of the structure of a specific embodiment two of the present invention; Figure 9 This is a schematic diagram of the internal structure of a specific embodiment two of the present invention; Figure 10 This is a schematic diagram of the connection structure of the flexible board electric retraction component of the present invention; Figure 11 This is a schematic diagram of the installation structure of the sealing and heat insulation device of the present invention; Figure 12 This is a schematic diagram of the synchronous rotation device.

[0028] In the diagram: Top plate 1, Protective shell 2, Maintenance plate 201, Control plate 202, Fixing plate 3, Connecting plate 4, Magnetic block 401, Adjusting plate 5, Auxiliary plate 501, Dustproof and heat-insulating flexible board 6, Flexible board electric winding and unwinding component 61, Flexible board winding and unwinding motor 62, Winding and unwinding reel 63, Storage box 64, Base 7, Mounting plate 701, Protective groove 702, Hydraulic push rod 8, Protective cover 9, Movable block 901, Fixed seat 10, Connecting seat 1001, Guide rod 11, Adjusting seat 12, Mold base 13, Electric push rod 14, Sliding sleeve 15, Mold core 16, Slider 1601, Distance sensor 17, Limiting rod 18, Extrusion block 19, Rubber block 20, Handle 21, Pull plate 22, Connecting rod 2201, Flexible board winding and unwinding component 601, Waterproof layer 602, Heat insulation layer 603, Protective film 604, Memory metal strip 605. Detailed Implementation

[0029] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0030] Example 1 like Figure 1-3As shown, a precision valve body extrusion molding die includes a set of extrusion components that move relatively close to each other and are used to extrude and deform the valve body blank. A protective device is provided on the side of each extrusion component. A symmetrical and movable die core mounting assembly is provided inside each extrusion component. The die core mounting assembly and the die core 16 are detachably connected. A liftable sealing and heat insulation device is provided around the extrusion component. The sealing and heat insulation device is connected to a cooling valve 7b via a cooling pipe 7b, and the cooling valve 7b is connected to an external cooling component. The sealing and heat insulation device can switch between heat preservation and cooling according to different process requirements, while also meeting the dust prevention requirements of precision manufacturing. When heat preservation is required, the sealing and heat insulation device is installed around the extrusion component. When rapid cooling is required, the cooling valve 7b is connected to an external cooling medium pipe, such as cooling water, cooling oil, or cooling gas, which is input through a pressure pump (not shown). The cooling medium is then evenly sprayed onto the extrusion component through the cooling pipe 7b and the sealing and heat insulation device.

[0031] Please refer to the details. Figure 2 , Figure 4The protective device includes a fixed plate 3, a limiting rod 18, and a protective cover 9. The fixed plate 3 is fixedly welded to both sides of the top plate 1, and the bottom of the fixed plate 3 is welded with the limiting rod 18. The periphery of the limiting rod 18 is movably connected with a movable block 901, and the movable block 901 on the periphery of the adjusting seat 12 is welded together with the protective cover 9. Pull plates 22 are installed on both sides of the protective cover 9 through connecting rods 2201, and handles 21 are welded on both sides of the protective cover 9 on the periphery of the pull plates 22. The inner side of the connecting rod 2201 penetrates the protective cover 9 and a pressing block 19 is welded thereon, and a rubber block 20 is bonded between the pressing block 19 and the protective cover 9. The operator grips handle 21 with both hands and firmly holds pull plate 22, thereby pulling the extrusion block 19 outward through connecting rod 2201 to separate it from limit rod 18. This reduces the contact friction between protective cover 9 and limit rod 18, facilitating position adjustment of protective cover 9. The operator can easily adjust the position of protective cover 9 by moving movable block 901 on limit rod 18. After adjusting it to the mold closing position of mold base 13, the operator releases handle 21. The rubber block 20, due to the disappearance of extrusion pressure, uses its own elasticity to press extrusion block 19 back to its initial position, thus tightly pressing it against limit rod 18. The position of the protective cover 9 is limited by contact friction, increasing stability. Then, the hydraulic push rod 8 is activated, which drives the adjusting seat 12 to move up and down, thereby causing the mold base 13 to close and the forging to be extruded and formed through the mold core 16. The protective cover 9 can protect the equipment and personnel during processing, preventing damage to the mold base 13 from external impacts or accidental injury from personnel putting their hands inside, thus increasing the safety of the equipment. After processing, the protective cover 9 can be moved to the top using the same method, making it convenient for personnel to remove the forging for subsequent processing.

[0032] refer to Figure 2 , Figure 3 , Figure 7 The mold core mounting assembly includes an electric push rod 14, which is fixedly installed inside the adjusting seat 12 and the fixed seat 10. The inner side of the electric push rod 14 passes through the mold base 13 and is fixedly connected to a sliding sleeve 15. A mold core 16 is movably connected inside the sliding sleeve 15, and sliders 1601 are welded to both sides of the mold core 16 inside the sliding sleeve 15. When it is necessary to replace or install the mold core 16, the electric push rod 14 pushes out the sliding sleeve 15. Figure 7 It is clear that the mold core 16 is fixed by the surrounding sliders 1601 and the sliding sleeve 15 and the rotating groove 1602. When it needs to be removed, it can be removed by rotating it back to the original position of the sliders 1601, which is convenient and quick.

[0033] refer to Figure 2 The extrusion component includes a top plate 1, a base 7, a fixed seat 10, and an adjusting seat 12. The fixed seat 10 is welded to the top of the base 7, and the top plate 1 is fixedly connected to the top of the fixed seat 10. A hydraulic push rod 8 is fixedly connected to the top of the top plate 1, and a protective shell 2 is welded to the top of the top plate 1 surrounding the hydraulic push rod 8. The adjusting seat 12 is fixedly connected to the bottom of the hydraulic push rod 8 through the top plate 1. A mold base 13 is fixedly connected to the inner sides of both the adjusting seat 12 and the fixed seat 10. A protective groove 702 is formed on the top surface of the outer periphery of the base 7.

[0034] The sealing and heat insulation device includes a dustproof and heat-insulating flexible board 6 and a flexible board storage component 601. The dustproof and heat-insulating flexible board 6 consists of a waterproof layer 602, a heat insulation layer 603, a protective film 604, and a memory metal strip 605, arranged sequentially from the mold side. The heat insulation layer 603 has a temperature-regulating inner hose 606 inside, and the waterproof layer 602 has temperature-regulating through holes 607 evenly distributed on it. The temperature-regulating through holes 607 and the temperature-regulating inner hose 606 are connected. The flexible board storage component 601 is installed inside the base 7. The flexible board storage component 601 is fixedly connected to one end of the dustproof and heat-insulating flexible board 6, and the other end of the dustproof and heat-insulating flexible board 6 is fixedly connected to the adjusting plate 5. The adjusting plate 5 and the connecting plate 4 are detachably connected. The connecting plate 4 is welded and fixed to the side of the fixing plate 3. The connecting plate 4 is provided with a socket, and a magnetic block 401 is provided on the socket. The adjusting plate 5 is inserted into the socket and magnetically fixed by the magnetic block 401. As can be understood from the above, the dustproof and heat-insulating flexible board 6 is fixed in the socket of the connecting plate 4 by the adjusting plate 5. After the dustproof and heat-insulating flexible board 6 is extended, its internal temperature regulating flexible hose 606 is connected to the protective groove 702, or in other words, it is connected to the cooling pipe 7b. The opening of the protective groove 702 is equipped with an elastic sealing strip and a relative sealing structure between it and the dustproof and heat-insulating flexible board 6, that is, the cooling medium can enter the interior of the dustproof and heat-insulating flexible board 6 through the outside.

[0035] like Figure 6 As shown, the flexible board retraction component 601 includes a reel 6012 with an internally installed retraction spring 6013. The end of the dustproof and heat-insulating flexible board 6 is fixedly connected along the circumference of the reel 6012. The retraction spring 6013 is fixedly mounted on a spring fixing shaft 6014, and both ends of the spring fixing shaft are fixedly mounted on the inner wall of the protective groove 702. After use, the flexible board retraction component 601 can quickly and automatically retract into the protective groove 702. The shape memory metal strip 605 supports the temperature-regulating inner hose 606 during the recycling process, preventing it from deforming and becoming blocked. In addition, the recovery drive of the shape memory metal strip 605 can provide power during the recycling process.

[0036] refer to Figure 1In some embodiments, a maintenance plate 201 is bolted to the surface of the protective shell 2, and the surface of the maintenance plate 201 is provided with heat dissipation holes. The operator can open the maintenance plate 201 with bolts to perform maintenance work on the hydraulic push rod 8. The heat dissipation holes can dissipate heat from the hydraulic push rod 8 without opening the maintenance plate 201.

[0037] In some embodiments, auxiliary plates 501 are welded to the surfaces of both ends of the adjustment plate 5, and anti-slip textures are provided on the top and bottom surfaces of the auxiliary plates 501. The operator can easily adjust and move the adjustment plate 5 through the auxiliary plates 501. The anti-slip textures will increase the contact friction between the auxiliary plates 501 and the palm of the hand when the operator uses it, thus increasing stability.

[0038] In some embodiments, a control board 202 is fixedly connected to one side of the protective shell 2, and a nameplate is fixedly connected to the other side of the protective shell 2. The operator can centrally control the entire device through the control board 202. The nameplate records the device's specifications and precautions for the operator to check during use.

[0039] In some embodiments, mounting plates 701 are welded to the surfaces of both ends of the base 7, and through holes are provided inside the mounting plates 701. Workers can connect to the work site by passing external bolts through the through holes, thereby fixing the device at the designated work site for use through the mounting plates 701, increasing the stability of the device.

[0040] refer to Figure 2 In some embodiments, guide rods 11 are fixedly connected to the bottom of the top plates 1 on both sides of the mold base 13, and the bottom of the guide rods 11 passes through the adjusting seat 12 and is fixedly connected to the fixed seat 10. The guide rods 11 will limit and guide the adjusting seat 12 during the movement driven by the hydraulic push rod 8, and can also fix the fixed seat 10 and the top plate 1 together to increase stability. Distance sensors 17 are fixedly connected to both sides of the protective cover 9 at the bottom of the handle 21, and the distance sensors 17 are connected to the protective cover 9 by bolts. The distance sensors 17 will detect the position of the protective cover 9, which is convenient for the staff to perform precise control. The distance sensors 17 can be easily installed and removed by bolts. A connecting seat 1001 is welded between the bottom of the limiting rod 18 and the fixed seat 10. The connecting seat 1001 is made of stainless steel. The connecting seat 1001 will firmly fix the limiting rod 18 and the fixed seat 10 together, thereby further limiting and fixing the position of the limiting rod 18 and increasing stability. The stainless steel material will ensure the strength and durability of the connecting seat 1001 and make it convenient for workers to use.

[0041] like Figure 8-9As shown, in some embodiments, the sealing and heat insulation device includes a dustproof and heat-insulating flexible board 6 and a flexible board electric winding and unwinding component 61. The flexible board electric winding and unwinding component 61 includes a flexible board winding and unwinding motor 62, a winding and unwinding reel 63, and a storage box 64. The flexible board winding and unwinding motor 62 is installed on one side of the fixed plate 3. The connecting plate 4 and the fixed plate 3 are fixedly connected. The storage box 64 is fixedly installed on the lower surface of the connecting plate 4. The storage box 64 contains winding and unwinding reels 63 connected end to end in sequence. One winding and unwinding reel 63 is connected to the output shaft of the flexible board winding and unwinding motor 62. The winding and unwinding reels 63 are connected to each other through a synchronous rotation device. One end of the winding and unwinding reel 63 is fixedly connected to the dustproof and heat-insulating flexible board 6. The winding and unwinding reel 63 is installed in the storage box 64. The storage box 64, the dustproof and heat-insulating flexible board 6, and the base 7 form a sealed space. Figure 10-11 As shown, the synchronous rotation device includes a first adapter 65, a rotary connecting shaft 66, and a second adapter 67. The first adapter 65 and the second adapter 67 are connected by the rotary connecting shaft 66, with both ends of the rotary connecting shaft 66 inserted into the connecting holes of the first adapter 65 and the second adapter 67, respectively. The rotary connecting shaft 66 has a clearance fit between the connecting holes. The flexible circuit board electric take-up and take-down component 61 can improve the automation control of the device and increase production efficiency.

[0042] In some embodiments, the base 7 and four corners are fixed with guide beams 68 for guiding the dustproof and heat-insulating soft board 6, and the side of the dustproof and heat-insulating soft board 6 is movably installed in the groove of the guide beam 68.

[0043] The working principle of a precision valve body extrusion molding die is as follows: When the staff needs to replace the mold core 16, they can activate the electric push rod 14. The electric push rod 14 will drive the sliding sleeve 15 to move together with the mold core 16, thereby automatically moving it out of the adjusting seat 12 or the fixed seat 10. The staff can easily pull the mold core 16 out of the sliding sleeve 15 by sliding the slider 1601 inside the sliding sleeve 15 to complete the disassembly work. Then, the new mold core 16 is pushed into the sliding sleeve 15. The sliding sleeve 15 will limit the vertical position of the mold core 16. Then, the electric push rod 14 is activated to retract the sliding sleeve 15 into the mold base 13. The mold base 13 will limit the front and rear position of the mold core 16. The position of the mold core 16 can be firmly limited without bolts, which is convenient for the staff to quickly disassemble, replace and maintain the mold core.

[0044] In use, the heat-treated forging can be placed inside the mold core 16 at the top of the fixed base 10. Then, the operator holds the handle 21 with both hands and grips the pull plate 22 tightly, thereby pulling the extrusion block 19 outward through the connecting rod 2201 to separate it from the limiting rod 18. This reduces the contact friction between the protective cover 9 and the limiting rod 18, making it easier for the operator to adjust the position of the protective cover 9. The operator can easily adjust the position of the protective cover 9 by moving the movable block 901 on the limiting rod 18. After adjusting it to the mold closing position of the mold base 13, the operator releases the handle 21. The rubber block 20 will squeeze the extrusion block 19 back to its initial position due to the disappearance of the extrusion pressure, thereby pressing it tightly onto the limiting rod 18 and limiting the position of the protective cover 9 through contact friction.

[0045] When the hydraulic push rod 8 is activated, it drives the adjusting seat 12 to move up and down, thereby causing the die holder 13 to close and the forging core 16 to extrude and form the forging. To meet the requirements of the precision forging process, if the valve body needs to be kept warm and cooled slowly, the sealing and heat insulation device can be opened to isolate it from outside air, preventing the valve body from rapidly cooling after high-temperature extrusion and causing uneven internal stress, which would affect product performance. If rapid cooling is required, the cooling valve 7a connects to an external cooling medium pipe. The cooling medium passes through the cooling pipe 7b and the temperature-regulating inner hose 606 of the sealing and heat insulation device, and is evenly sprayed onto the extruded part for rapid cooling.

[0046] After processing, the protective cover 9 is moved to the top, and the forging is removed for further processing.

[0047] In addition, when the device is not in use after work, the dustproof and heat-insulating soft plate 6 of the sealing and heat insulation device can protect the entire device from dust, meeting the dustproof process requirements of precision extrusion manufacturing.

Claims

1. A precision valve body extrusion molding die, comprising an extrusion component, characterized in that: A protective device is provided on the outside of the extrusion component, and a sealing and heat insulation device is provided on the outside of the protective device. The extrusion component includes a top plate (1), a base (7), a fixed seat (10), a guide rod (11), and an adjusting seat (12). The fixed seat (10) is disposed on the base (7). The top plate (1) is fixedly connected to the fixed seat (10) through the guide rod (11). The adjusting seat (12) is disposed between the top plate (1) and the fixed seat (10). The adjusting seat (12) moves along the guide rod (11). A hydraulic push rod (8) is disposed above the top plate (1). The bottom of the hydraulic push rod (8) passes through the top plate (1) and is fixedly connected to the adjusting seat (12). A mold base (13) is fixedly connected to the opposite side of the adjusting seat (12) and the fixed seat (10). The protective device includes a fixed plate (3), a limiting rod (18), and a protective cover (9). The fixed plate (3) is disposed on both sides of the top plate (1). The two ends of the limiting rod (18) are respectively connected to the fixed plate (3) and the fixed seat (10). A movable block (901) is provided on the limiting rod (18), and a protective cover (9) is provided on the movable block (901). The sealing and heat insulation device includes a dustproof and heat-insulating soft board (6), which consists of a waterproof layer (602), a heat insulation layer (603), a protective film (604), and a memory metal strip (605) from the inside out. The heat insulation layer (603) is provided with a temperature-regulating inner hose (606), and the waterproof layer (602) is evenly distributed with temperature-regulating through holes (607). The temperature-regulating through holes (607) and the temperature-regulating inner hose (606) are connected. It also includes a cooling valve (7a) and a cooling pipe (7b), wherein the temperature regulating inner hose (606) is connected to the cooling valve (7a) through the cooling pipe (7b), and the cooling valve (7a) and the cooling pipe (7b) are disposed inside the base (7); The sealing and heat insulation device also includes a soft board retracting component (601) and an adjusting plate (5). A connecting plate (4) is provided on the side of the fixing plate (3). An insertion port is provided on the connecting plate (4). The adjusting plate (5) is inserted into the insertion port. One end of the dustproof and heat-insulating soft board (6) is fixedly connected to the soft board retracting component (601), and the other end of the dustproof and heat-insulating soft board (6) is fixedly connected to the adjusting plate (5). The flexible board take-up and take-down component (601) includes a roller (6012), a rewind spring (6013), and a spring fixing shaft (6014). The base (7) has a protective groove (702) on its side. The roller (6012), the rewind spring (6013), and the spring fixing shaft (6014) are all located in the protective groove (702). The spring fixing shaft (6014) is fixedly connected to the inner wall of the protective groove (702). The rewind spring (6013) is fixedly installed on the spring fixing shaft (6014). The roller (6012) is located on the rewind spring (6013). One end of the dustproof and heat-insulating flexible board (6) is fixedly connected to the roller (6012).

2. The precision valve body extrusion molding die as described in claim 1, characterized in that: It also includes a mold core mounting assembly, which includes an electric push rod (14), a sliding sleeve (15) and a mold core (16). The electric push rod (14) is fixedly connected to the sliding sleeve (15). The sliding sleeve (15) is disposed in the mold base (13). The mold core (16) is disposed in the sliding sleeve (15). The electric push rod (14) is disposed in the adjusting seat (12) and / or the fixing seat (10).

3. The precision valve body extrusion molding die as described in claim 2, characterized in that: The mold core (16) has a slider (1601) on its side, and the sliding sleeve (15) has a fixing groove (1602) on its side. The slider (1601) is inserted into the fixing groove (1602).

4. The precision valve body extrusion molding die as described in claim 1, characterized in that: It also includes an adjustment device, which includes a squeezing block (19), a rubber block (20), a handle (21), a pull plate (22), and a connecting rod (2201). The handle (21) is located on the side of the protective cover (9) away from the limiting rod (18) and is fixedly connected to the protective cover (9). The squeezing block (19) is located between the protective cover (9) and the limiting rod (18). The pull plate (22) is located between the handle (21) and the protective cover (9). The squeezing block (19) and the pull plate (22) are fixedly connected by the connecting rod (2201) passing through the protective cover (9). A rubber block (20) is provided between the squeezing block (19) and the protective cover (9).

5. The precision valve body extrusion molding die as described in claim 4, characterized in that: It also includes a distance sensor (17), which is disposed on the protective cover (9).

6. The precision valve body extrusion molding die as described in claim 1, characterized in that: The side of the fixed plate (3) is provided with a connecting plate (4). The sealing and heat insulation device also includes a flexible plate electric winding and unwinding component (61). The flexible plate electric winding and unwinding component (61) includes a flexible plate winding and unwinding motor (62), a winding and unwinding reel (63), and a storage box (64). The storage box (64) is provided on the connecting plate (4). The flexible plate winding and unwinding motor (62) and the winding and unwinding reel (63) are both provided in the storage box (64). One end of the dustproof and heat-insulating flexible plate (6) is wound around the winding and unwinding reel (63).

7. The precision valve body extrusion molding die as described in claim 6, characterized in that: The flexible board electric take-up and take-down component (61) includes multiple take-up and take-down reels (63), which are placed in parallel and connected by a synchronous rotation device. The synchronous rotation device includes a first adapter (65), a rotating connecting shaft (66), and a second adapter (67). The two ends of the rotating connecting shaft (66) are respectively set in the connecting holes of the first adapter (65) and the second adapter (67).

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