Safety die for extruder of forming machine

Abstract

The invention relates to the technical field of extruding machine die plates, and discloses a forming machine extruding machine safety die which comprises a bottom plate and further comprises a connecting plate bottom hole formed in the bottom plate and used for being connected with a machine head, and a die plate bottom hole used for installing a die plate body is formed in the connecting plate bottom hole. A mouth-shaped plate bottom hole is formed in the mouth-shaped plate main body, a mouth-shaped plate outlet is formed in the mouth-shaped plate bottom hole, the mouth-shaped plate main body is fixedly mounted in the mouth-shaped plate bottom hole through a bolt, a mounting hole is formed in the bottom plate, the bottom plate is rotatably mounted on an extruder through the mounting hole, and a handle is fixedly mounted on the bottom plate; the mouth-shaped plate main body is fixed in the mouth-shaped plate bottom hole through the bolt and extends out of the mouth-shaped plate outlet, and the built-in mounting structure changes a traditional external fixing mode, so that the mouth-shaped plate main body is stressed more reasonably, and the potential safety hazard that the mouth-shaped plate pops up due to the fact that the bolt is broken due to overlarge pressure of a sizing material is avoided.

Description

Technical Field

[0001] This invention relates to the field of extruder die plate technology, and more particularly to a safety die plate for a molding machine extruder. Background Technology

[0002] In the field of material extrusion molding, it is necessary to control the extruded shape and precision of the material through specific molding components. These components are the key link connecting the extrusion equipment and the molding process, and directly affect the appearance quality and dimensional consistency of the product. They are widely used in the processing and production of various polymer materials such as rubber and plastics.

[0003] The existing extruder operation process involves heating the entire extruder using a temperature control device. After heating, the rubber compound is extruded through the extruder screw. The rubber compound enters the die head clamping device through the die head, then passes through the die bottom plate, and finally is extruded through the die plate.

[0004] The varying hardness of the rubber compound and the presence of leftover material from the previous extrusion cause excessive pressure when the compound passes through the extruder die plate. This increases the stress on the die plate bolts, potentially causing them to break due to excessive tension or shear force, thus ejecting the die plate. Since manual material handling is required during extrusion, workers must stand to the left, right, or in front of the extruder head, posing a significant safety hazard. Summary of the Invention

[0005] The purpose of this invention is to address the problem that, due to variations in the hardness of the rubber compound and the presence of tail material from the previous extrusion, excessive pressure is generated when the rubber compound passes through the extruder die plate. This causes increased stress on the die plate bolts, which can lead to bolt breakage due to excessive tensile or shear forces, ejecting the die plate. Since manual material traction is required during extrusion, personnel must stand to the left, right, or in front of the die head, posing a significant safety hazard. Therefore, this invention proposes a safe die plate for the extruder of a molding machine.

[0006] To achieve the above objectives, the present invention employs the following technology: a safety die for a forming machine extruder, comprising a base plate, and further comprising: a bottom hole for connecting a connecting plate to a die head, wherein a bottom hole for mounting a die plate body is provided in the bottom hole of the connecting plate, a die plate outlet is provided in the bottom hole of the die plate, the die plate body is fixedly mounted in the bottom hole of the die plate by bolts, a mounting hole is provided on the base plate, the base plate is rotatably mounted on the extruder through the mounting hole, and a handle is fixedly mounted on the base plate; A pressure relief assembly is disposed on the mouth-shaped plate body and is used to quickly divert abnormally high pressure of the adhesive material. A cooling component is mounted on the base plate and is used to control the temperature of the base plate, the orifice plate, and the surrounding area.

[0007] As a further description of the safety die of the extruder in the above-mentioned molding machine: The mouthpiece outlet is wedge-shaped, and the protruding part of the mouthpiece body is also wedge-shaped.

[0008] As a further description of the safety die of the extruder in the above-mentioned molding machine: The pressure relief assembly includes a pair of pressure relief pipes fixedly installed on the main body of the mouth-shaped plate. The pressure relief pipes penetrate the bottom plate and have a movable cavity inside. A piston rod is slidably installed in the movable cavity. A spring is fixedly installed on the piston rod. The end of the spring away from the piston rod is fixedly connected to the inner wall of the movable cavity. The pressure relief pipe has a pressure relief chamber, a set of pressure relief inlets, and a pressure relief outlet.

[0009] As a further description of the safety die of the extruder in the above-mentioned molding machine: A connecting pipe is fixedly installed inside the pressure relief pipe, and an expansion ball is fixedly installed at the end of the connecting pipe away from the pressure relief pipe.

[0010] As a further description of the safety die of the extruder in the above-mentioned molding machine: The cooling component includes a spray pipe disposed above a base plate, and a collection component that cooperates with the spray pipe is fixedly installed on the base plate, and a collection component is fixedly installed on the collection component.

[0011] As a further description of the safety die of the extruder in the above-mentioned molding machine: The base plate has several drainage channels for guiding cooling water.

[0012] As a further description of the safety die of the extruder in the above-mentioned molding machine: A filter screen is fixedly installed inside the collection component, and a scraper is slidably installed on the collection component. The scraper is in contact with the filter screen, and a pull rod is fixedly installed on the scraper. A sealing plate is fixedly installed on the pull rod.

[0013] As a further description of the safety die of the extruder in the above-mentioned molding machine: A spiral plate is fixedly installed inside the recovery pipe, and an installation groove is opened on the recovery pipe. A semiconductor refrigeration chip is fixedly installed inside the installation groove, and the cooling surface of the semiconductor refrigeration chip is in contact with the inner wall of the installation groove.

[0014] As a further description of the safety die of the extruder in the above-mentioned molding machine: The base plate has a first through hole, and the mouth-shaped plate body has a second through hole that matches the first through hole. The first through hole and the second through hole are used for the pressure sensor to pass through.

[0015] As a further description of the safety die of the extruder in the above-mentioned molding machine: An electrical control module is installed on the base plate.

[0016] In summary, due to the adoption of the above-mentioned technology in the safety die of a molding machine extruder, the beneficial effects of this invention are: 1. The base plate is rotatably mounted on the extruder through the mounting holes. The base plate can be easily rotated by the handle to open and close the die head, meeting the operational needs under different working conditions. The bottom hole of the connecting plate provides the mounting foundation for the connection between the base plate and the die head, ensuring a stable connection and guaranteeing the stability of the extrusion operation. The die plate body is fixed in the bottom hole of the die plate with bolts and extends from the die plate outlet. This built-in installation structure changes the traditional external fixing method, making the die plate body more reasonably stressed and avoiding the safety hazard of the die plate popping out due to bolt breakage caused by excessive rubber pressure.

[0017] 2. When the rubber pressure is within the normal range, the spring is in a natural extension and contraction state. Under the action of the spring, the piston rod blocks the pressure relief inlet, ensuring that the rubber can be extruded normally from the die plate body. When the rubber experiences abnormally high pressure, the high-pressure rubber will generate a thrust on the piston rod. This thrust overcomes the spring force, causing the piston rod to slide in the movable chamber, thereby opening the pressure relief inlet. At this time, the high-pressure rubber enters the pressure relief chamber through the pressure relief inlet and is then discharged from the pressure relief outlet, achieving the purpose of quickly diverting the high-pressure rubber. The discharged rubber can be reused in the extruder. Through this automatic pressure relief mechanism, the internal pressure of the device can be reduced in a short time, avoiding problems such as loosening of the die plate body and bolt breakage caused by excessive pressure. This effectively protects the device structure, prevents safety accidents, and ensures the personal safety of operators. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 This shows a structural schematic diagram of the invention from another perspective. Figure 3 A schematic diagram of the structure of the base plate of the present invention is shown; Figure 4 A schematic diagram of the main body of the mouth-shaped plate of the present invention is shown; Figure 5 A partial cross-sectional view of the main body of the mouth plate of the present invention is shown; Figure 6 A cross-sectional view of the pressure relief pipe in this invention is shown; Figure 7 A schematic diagram of the cooling component in this invention is shown; Figure 8A schematic diagram of the cooperation between the recovery pipe and the spiral plate in this invention is shown.

[0019] Legend: 10. Base plate; 11. Bottom hole of connecting plate; 12. Bottom hole of mouth plate; 13. Mouth plate outlet; 14. First through hole; 15. Second through hole; 16. Mouth plate body; 17. Electrical control module; 18. Mounting hole; 19. Handle; 20. Pressure relief assembly; 21. Pressure relief pipe; 22. Movable chamber; 23. Piston rod; 24. Spring; 25. Pressure relief chamber; 26. Pressure relief inlet; 27. Pressure relief outlet; 28. Connecting pipe; 29. ​​Expansion ball; 30. Cooling component; 31. Spray pipe; 32. Drainage channel; 33. Collection component; 34. Recovery pipe; 35. Filter screen; 36. Scraper; 37. Sealing plate; 38. Tie rod; 39. Mounting groove; 310. Semiconductor cooling chip; 311. Spiral plate. Detailed Implementation

[0020] The following will describe clearly and completely the safety die of a molding machine extruder according to the embodiments of the present invention 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.

[0021] like Figure 1 - Figure 8 As shown, the present invention employs the following technology for a safety die of a forming machine extruder: including a base plate 10, and further including: a connecting plate bottom hole 11 formed on the base plate 10 for connecting with the die head, a die plate bottom hole 12 formed in the connecting plate bottom hole 11 for installing a die plate body 16, a die plate outlet 13 formed in the die plate bottom hole 12, the die plate body 16 being fixedly installed in the die plate bottom hole 12 by bolts, a mounting hole 18 formed on the base plate 10, the base plate 10 being rotatably installed on the extruder through the mounting hole 18, and a handle 19 being fixedly installed on the base plate 10; Pressure relief assembly 20, which is disposed on the mouth-shaped plate body 16, is used to quickly divert abnormally high pressure of the adhesive material; Cooling component 30 is disposed on base plate 10 and is used to control the temperature of base plate 10, orifice plate and surrounding area; The base plate 10 is rotatably mounted on the extruder through the mounting hole 18. The base plate 10 can be easily rotated through the handle 19 to open and close the die head, meeting the operational needs under different working conditions. The bottom hole 11 of the connecting plate provides the mounting foundation for the connection between the base plate 10 and the die head, ensuring a stable connection and guaranteeing the stability of the extrusion operation. The die plate body 16 is fixed in the die plate bottom hole 12 by bolts and extends out from the die plate outlet 13. This built-in installation structure changes the traditional external fixing method, making the die plate body 16 more reasonably stressed and avoiding the safety hazard of the die plate popping out due to bolt breakage caused by excessive rubber pressure. When the rubber material is under abnormally high pressure, the pressure relief component 20 can quickly divert the high-pressure rubber material, reduce the pressure on the mouth plate body 16 and the base plate 10, and further improve the safety of the device. The cooling component 30 continuously controls the temperature of the base plate 10, the die plate, and the surrounding environment to prevent excessive temperature from affecting the performance of the rubber compound and the service life of the equipment, thus ensuring the stable and efficient operation of the extrusion process.

[0022] The mouth plate outlet 13 is wedge-shaped, and the protruding part of the mouth plate body 16 is wedge-shaped; The outlet 13 of the die plate and the protruding part of the die plate body 16 adopt a wedge design. When the rubber material is extruded from the die plate body 16, the wedge structure can guide and squeeze the rubber material, making the rubber material more uniformly stressed during the extrusion process and achieving better molding effect. At the same time, the wedge structure increases the guiding surface of the rubber material in contact with the die plate body 16, reduces the phenomenon of local pressure concentration, reduces the risk of damage to the device caused by excessive local pressure, further improves the stability and safety of the device operation, and also helps to improve the quality consistency of the extruded products.

[0023] The base plate 10 has a first through hole 14, and the mouth-shaped plate body 16 has a second through hole 15 that cooperates with the first through hole 14. The first through hole 14 and the second through hole 15 are used for the pressure sensor to pass through. The pressure sensor is mounted on the device through the first perforation 14 and the second perforation 15, allowing direct contact with the rubber compound and real-time monitoring of pressure changes. When the rubber compound pressure abnormally increases, the pressure sensor can detect the signal promptly and transmit it to the relevant control module. This provides accurate pressure data support for triggering the pressure relief component 20, ensuring that it activates at an appropriate pressure threshold and preventing premature or delayed pressure relief from affecting operations. Simultaneously, the real-time monitoring data from the pressure sensor also provides a reference for operators, enabling them to promptly understand the rubber compound extrusion pressure and adjust extruder operating parameters accordingly, ensuring stable and safe extrusion operations.

[0024] The pressure relief assembly 20 includes a pair of pressure relief pipes 21 fixedly installed on the mouth-shaped plate body 16. The pressure relief pipes 21 penetrate the bottom plate 10. A movable cavity 22 is opened in the pressure relief pipe 21. A piston rod 23 is slidably installed in the movable cavity 22. A spring 24 is fixedly installed on the piston rod 23. The end of the spring 24 away from the piston rod 23 is fixedly connected to the inner wall of the movable cavity 22. A pressure relief cavity 25 is opened in the pressure relief pipe 21. A set of pressure relief inlets 26 is opened in the pressure relief cavity 25. A pressure relief outlet 27 is opened in the pressure relief cavity 25. When the rubber pressure is within the normal range, the spring 24 is in a natural extension and contraction state, and the piston rod 23 blocks the pressure relief inlet 26 under the action of the spring 24, ensuring that the rubber can be extruded normally from the die plate body 16. When the rubber is under abnormally high pressure, the high-pressure rubber will generate a thrust on the piston rod 23. This thrust overcomes the elastic force of the spring 24, causing the piston rod 23 to slide in the movable chamber 22, thereby opening the pressure relief inlet 26. At this time, the high-pressure rubber enters the pressure relief chamber 25 through the pressure relief inlet 26 and is discharged from the pressure relief outlet 27, achieving the purpose of quickly diverting the high-pressure rubber. The discharged rubber can be reused in the extruder. Through this automatic pressure relief mechanism, the internal pressure of the device can be reduced in a short time, avoiding problems such as loosening of the die plate body 16 and bolt breakage due to excessive pressure. This effectively protects the device structure, prevents safety accidents, and ensures the personal safety of operators. With multiple pressure relief inlets 26, it can adapt to different pressure ranges and adjust the pressure relief accordingly, thus improving the pressure relief effect.

[0025] A connecting pipe 28 is fixedly installed inside the pressure relief pipe 21, and an expansion ball 29 is fixedly installed at the end of the connecting pipe 28 away from the pressure relief pipe 21. When the piston rod 23 moves, it compresses the air in the moving chamber 22. The air enters the expansion ball 29 along the connecting pipe 28, causing the expansion ball 29 to expand. Even if the pressure sensor fails, it can still alert the operator that the extruder pressure is abnormal. At the same time, different pressures will cause the expansion ball 29 to expand differently, which can quickly determine the pressure level, providing double protection.

[0026] The cooling component 30 includes a spray pipe 31 disposed above the base plate 10, and a collection component 33 that cooperates with the spray pipe 31 is fixedly installed on the base plate 10, and a collection component 33 is fixedly installed on the collection component 33. When the temperature of the die plate is too high, the fixing bolts of the die plate body 16 will deform, and the die plate is prone to loosening after long-term use. At the same time, the pressure sensor is prone to damage under high temperature. The spray pipe 31 sprays cooling water onto the base plate 10, the die plate body 16 and the surrounding area. After the cooling water comes into contact with the surface of the device, it absorbs the heat generated by the device through heat conduction, thereby achieving rapid cooling and avoiding problems such as adhesive adhesion and aging and damage of device parts due to excessive temperature. This ensures the normal extrusion of the adhesive and the service life of the device. The collection part 33 is used to collect the cooling water after spraying, preventing the cooling water from flowing randomly and polluting the working environment, and avoiding water waste. The collected cooling water is discharged through the recovery pipe 34 for subsequent recycling or reuse, which is both environmentally friendly and reduces operating costs, ensuring the sustainability of cooling operations.

[0027] The base plate 10 is provided with a plurality of flow channels 32 for guiding cooling water; After the cooling water sprayed by the spray pipe 31 falls onto the base plate 10, the guide channel 32 guides the cooling water, allowing it to flow along a preset path and evenly cover all areas of the base plate 10. This prevents the cooling water from accumulating locally on the surface of the base plate 10 or from flowing poorly, ensuring that all parts of the base plate 10 can be cooled evenly and improving the cooling effect. At the same time, the guided cooling water can flow more smoothly into the collection component 33, improving the collection efficiency of the cooling water, reducing water waste, and further ensuring the stable and efficient operation of the cooling operation.

[0028] A filter screen 35 is fixedly installed inside the collection component 33. A scraper 36 is slidably installed on the collection component 33. The scraper 36 is in contact with the filter screen 35. A pull rod 38 is fixedly installed on the scraper 36. A sealing plate 37 is fixedly installed on the pull rod 38. After cooling water flows into the collection unit 33, the filter screen 35 filters out the adhesive impurities and dust contained in the cooling water, preventing impurities from clogging the recovery pipe 34, ensuring the normal flow of the recovery pipe 34, and ensuring the stable operation of the cooling water recovery system. As the operation time increases, a certain amount of impurities will accumulate on the filter screen 35. At this time, the scraper 36 can be slid on the filter screen 35 by pulling the lever 38. The scraper 36 is in close contact with the filter screen 35 and can scrape off the impurities on the filter screen 35, thus cleaning the filter screen 35. The sealing plate 37 can seal the opening of the collection unit 33 in the non-cleaning state to prevent cooling water leakage and impurities from entering, ensuring the filtration and collection effect. During cleaning, pulling the lever 38 can open the sealing plate 37 to facilitate the discharge of impurities. After cleaning, releasing the lever 38 will automatically reset the sealing plate 37, making the operation convenient and efficient.

[0029] A spiral plate 311 is fixedly installed inside the recovery pipe 34. An installation groove 39 is provided on the recovery pipe 34. A semiconductor cooling chip 310 is fixedly installed inside the installation groove 39. The cooling surface of the semiconductor cooling chip 310 is in contact with the inner wall of the installation groove 39. The cooling water, after being filtered by filter screen 35, enters the recovery pipe 34. The spiral plate 311 inside the recovery pipe 34 extends the flow path and residence time of the cooling water. The cooling surface of the semiconductor cooling chip 310 contacts the inner wall of the mounting groove 39, enabling rapid transfer of cooling energy to the cooling water in the recovery pipe 34 for secondary cooling. The cooled water can then be recycled back to the spray pipe 31, improving the utilization rate of the cooling water and reducing water consumption. Furthermore, the secondary cooling effect of the cooling water is superior, better absorbing the heat generated by the device, further improving the cooling efficiency of the entire cooling system and ensuring stable operation of the device in a suitable temperature environment.

[0030] An electrical control module 17 is provided on the base plate 10; The electrical control module 17 is used to limit the start-up conditions of the extruder, specifically: the extruder can start slowly only when the die head is open; the extruder can only operate normally when the die head is closed and the forming roller at the front end of the die plate moves to the front end of the die plate and triggers the proximity switch.

[0031] Working principle: The base plate 10 is rotatably mounted on the extruder through the mounting hole 18. The base plate 10 can be easily rotated through the handle 19 to open and close the die head, meeting the operational needs under different working conditions. The bottom hole 11 of the connecting plate provides the mounting foundation for the connection between the base plate 10 and the die head, ensuring a stable connection and guaranteeing the stability of the extrusion operation. The die plate body 16 is fixed in the die plate bottom hole 12 by bolts and extends out from the die plate outlet 13. This built-in installation structure changes the traditional external fixing method, making the die plate body 16 more reasonably stressed and avoiding the safety hazard of the die plate popping out due to bolt breakage caused by excessive rubber pressure. The outlet 13 of the die plate and the protruding part of the die plate body 16 adopt a wedge design. When the rubber material is extruded from the die plate body 16, the wedge structure can guide and squeeze the rubber material, making the rubber material more uniformly stressed during the extrusion process and achieving better molding effect. At the same time, the wedge structure increases the guiding surface of the rubber material in contact with the die plate body 16, reduces the phenomenon of local pressure concentration, reduces the risk of damage to the device caused by excessive local pressure, further improves the stability and safety of the device operation, and also helps to improve the quality consistency of the extruded products. The pressure sensor is mounted on the device through the first perforation 14 and the second perforation 15, allowing direct contact with the rubber compound and real-time monitoring of pressure changes. When the rubber compound pressure abnormally increases, the pressure sensor can detect the signal promptly and transmit it to the relevant control module. This provides accurate pressure data support for triggering the pressure relief component 20, ensuring that the pressure relief component 20 starts at an appropriate pressure threshold and avoiding premature or delayed pressure relief that could affect operations. Simultaneously, the real-time monitoring data from the pressure sensor also provides a reference for operators, enabling them to promptly grasp the rubber compound extrusion pressure and adjust extruder operating parameters accordingly, ensuring stable and safe extrusion operations. When the rubber pressure is within the normal range, the spring 24 is in a natural extension and contraction state, and the piston rod 23 blocks the pressure relief inlet 26 under the action of the spring 24, ensuring that the rubber can be extruded normally from the die plate body 16. When the rubber is under abnormally high pressure, the high-pressure rubber will generate a thrust on the piston rod 23. This thrust overcomes the elastic force of the spring 24, causing the piston rod 23 to slide in the movable chamber 22, thereby opening the pressure relief inlet 26. At this time, the high-pressure rubber enters the pressure relief chamber 25 through the pressure relief inlet 26 and is discharged from the pressure relief outlet 27, achieving the purpose of quickly diverting the high-pressure rubber. The discharged rubber can be reused in the extruder. Through this automatic pressure relief mechanism, the internal pressure of the device can be reduced in a short time, avoiding problems such as loosening of the die plate body 16 and bolt breakage due to excessive pressure. This effectively protects the device structure, prevents safety accidents, and ensures the personal safety of operators. Multiple pressure relief inlets 26 can adapt to different pressure ranges and automatically relieve pressure according to the pressure level, thus improving the pressure relief effect; When the piston rod 23 moves, it compresses the air in the moving chamber 22. The air enters the expansion ball 29 along the connecting pipe 28, causing the expansion ball 29 to expand. Even if the pressure sensor fails, it can still alert the operator that the extruder pressure is abnormal. At the same time, different pressures will cause the expansion ball 29 to expand differently, which can quickly understand the pressure level and provide double protection. When the temperature of the die plate is too high, the fixing bolts of the die plate body 16 will deform. After long-term use, the die plate is prone to loosening. At the same time, the pressure sensor is prone to damage under high temperature. The spray pipe 31 sprays cooling water onto the base plate 10, the die plate body 16 and the surrounding area. After the cooling water comes into contact with the surface of the device, it absorbs the heat generated by the device through heat conduction, thereby achieving rapid cooling and avoiding the problems of adhesive adhesion and aging and damage of device parts due to excessive temperature. This ensures the normal extrusion of the adhesive and the service life of the device. The collection part 33 is used to collect the cooling water after spraying, preventing the cooling water from flowing randomly and polluting the working environment, and avoiding water waste. The collected cooling water is discharged through the recovery pipe 34 for subsequent recycling or reuse, which is both environmentally friendly and reduces operating costs, ensuring the sustainability of cooling operations. After the cooling water sprayed by the spray pipe 31 falls onto the base plate 10, the diversion groove 32 can guide the cooling water, allowing it to flow along a preset path and evenly cover all areas of the base plate 10. This prevents the cooling water from accumulating locally on the surface of the base plate 10 or from flowing poorly, ensuring that all parts of the base plate 10 can be cooled evenly and improving the cooling effect. At the same time, the guided cooling water can flow more smoothly into the collection component 33, improving the collection efficiency of the cooling water, reducing water waste, and further ensuring the stable and efficient operation of the cooling operation. After cooling water flows into the collection unit 33, the filter screen 35 filters out the adhesive impurities and dust contained in the cooling water, preventing impurities from clogging the recovery pipe 34, ensuring the normal flow of the recovery pipe 34, and ensuring the stable operation of the cooling water recovery system. As the operation time increases, a certain amount of impurities will accumulate on the filter screen 35. At this time, the scraper 36 can be slid on the filter screen 35 by pulling the lever 38. The scraper 36 is in close contact with the filter screen 35 and can scrape off the impurities on the filter screen 35, thus cleaning the filter screen 35. The sealing plate 37 can seal the opening of the collection unit 33 in the non-cleaning state to prevent cooling water leakage and impurities from entering, ensuring the filtration and collection effect. During cleaning, pulling the lever 38 can open the sealing plate 37 to facilitate the discharge of impurities. After cleaning, releasing the lever 38 will automatically reset the sealing plate 37, making the operation convenient and efficient. After being filtered by filter screen 35, the cooling water enters the recovery pipe 34. The spiral plate 311 inside the recovery pipe 34 extends the flow path and residence time of the cooling water. The cooling surface of the semiconductor cooling chip 310 contacts the inner wall of the mounting groove 39, enabling rapid transfer of cooling energy to the cooling water in the recovery pipe 34 for secondary cooling. The cooled water can then be recycled back to the spray pipe 31, improving the utilization rate of the cooling water and reducing water consumption. Furthermore, the secondary cooling effect of the cooling water is superior, allowing it to better absorb the heat generated by the device, further improving the overall cooling efficiency of the cooling system and ensuring stable operation of the device in a suitable temperature environment. The electrical control module 17 is used to limit the start-up conditions of the extruder, specifically: the extruder can start slowly only when the die head is open; the extruder can only operate normally when the die head is closed and the forming roller at the front end of the die plate moves to the front end of the die plate and triggers the proximity switch.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technology of the present invention and the inventive concept of the extruder of the molding machine, should be covered within the scope of protection of the present invention.

Claims

1. A safety die of an extruder of a forming machine, comprising a base plate (10), characterized in that, Also include: The bottom plate (10) is provided with a connecting plate bottom hole (11) for connecting with the machine head, a die plate bottom hole (12) for installing the die plate body (16) is arranged in the connecting plate bottom hole (11), a die plate outlet (13) is arranged in the die plate bottom hole (12), the die plate body (16) is fixedly installed in the die plate bottom hole (12) through bolts, the bottom plate (10) is rotatably installed on the extruder through the mounting hole (18), and the bottom plate (10) is fixedly installed with a handle (19); The pressure relief assembly (20) is arranged on the die plate body (16), and the pressure relief assembly (20) is used for quickly shunting abnormal high pressure of the rubber material; The cooling assembly (30) is arranged on the bottom plate (10), and the cooling assembly (30) is used for controlling the temperature of the bottom plate (10), the die plate and the surrounding.

2. A safety die of an extruder of a forming machine according to claim 1, characterized in that, The die plate outlet (13) is wedge-shaped, and the protruding part of the die plate body (16) is wedge-shaped.

3. A safety die of an extruder of a forming machine according to claim 2, characterized in that, The pressure relief assembly (20) includes a pair of pressure relief pipes (21) fixedly installed on the die plate body (16), the pressure relief pipes (21) penetrate the bottom plate (10), the pressure relief pipes (21) are provided with a movable cavity (22) therein, a piston rod (23) is slidably installed in the movable cavity (22), a spring (24) is fixedly installed on the piston rod (23), one end of the spring (24) away from the piston rod (23) is fixedly connected with the inner wall of the movable cavity (22), a pressure relief cavity (25) is arranged in the pressure relief pipe (21), a group of pressure relief inlets (26) are arranged in the pressure relief cavity (25), and a pressure relief outlet (27) is arranged in the pressure relief cavity (25).

4. A safety die of an extruder of a forming machine according to claim 3, characterized in that, A connecting pipe (28) is fixedly installed in the pressure relief pipe (21), and an expansion ball (29) is fixedly installed at one end of the connecting pipe (28) away from the pressure relief pipe (21).

5. A safety die of an extruder of a forming machine according to claim 4, characterized in that, The cooling assembly (30) includes a spraying pipe (31) arranged above the bottom plate (10), a collecting piece (33) cooperated with the spraying pipe (31) is fixedly installed on the bottom plate (10), and the collecting piece (33) is fixedly installed on the collecting piece (33).

6. A safety die of an extruder of a forming machine according to claim 5, characterized in that, A plurality of drainage grooves (32) for guiding the cooling water are arranged on the bottom plate (10).

7. A safety die of an extruder of a forming machine according to claim 6, characterized in that A filter screen (35) is fixedly installed in the collecting piece (33), a scraping piece (36) is slidably installed on the collecting piece (33), the scraping piece (36) is in contact with the filter screen (35), a pull rod (38) is fixedly installed on the scraping piece (36), and a sealing plate (37) is fixedly installed on the pull rod (38).

8. A safety die of an extruder of a forming machine according to claim 7, characterized in that A spiral plate (311) is fixedly installed in the recovery pipe (34), a mounting groove (39) is arranged on the recovery pipe (34), a semiconductor refrigeration sheet (310) is fixedly installed in the mounting groove (39), and the refrigeration surface of the semiconductor refrigeration sheet (310) is in contact with the inner wall of the mounting groove (39).

9. A safety die of an extruder of a forming machine according to claim 8, characterized in that, The bottom plate (10) is provided with a first through hole (14), and the mouth plate body (16) is provided with a second through hole (15) matched with the first through hole (14), and the first through hole (14) and the second through hole (15) are used for the pressure sensor to pass through.

10. A safety die of an extruder of a forming machine according to claim 9, characterized in that, The bottom plate (10) is provided with an electrical control module (17).

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