A multi-lumen extruded profile die

Abstract

The application is suitable for the technical field of profile processing, and provides a multi-pipe cavity extruded profile die, which comprises a lower die and an upper die; a plurality of communicated pipe cavities are formed in the lower die, and a partition plate is arranged in the pipe cavity to separate space; a plurality of toothed plates are fixed on the upper die; a plurality of discharge ports are formed in the bottom of a die groove of the lower die, and the plurality of discharge ports are matched with the plurality of toothed plates; an ejection mechanism arranged on the lower die is used for ejecting the extruded profile; and a driving mechanism arranged on the lower die is used for driving the ejection mechanism to operate. The multi-pipe cavity extruded profile die provided in the scheme has the basic processing functions of conventional profile extrusion, material discharge and circulating cooling, and simultaneously integrates auxiliary functions such as automatic demolding, demolding liquid recovery and structure guiding and limiting, so as to solve the problems that the existing multi-pipe cavity extruded profile die is easy to be bonded with the pipe cavity after profile forming, it is difficult to demold and take out, and the profile is easy to be damaged during ejection.

Description

Technical Field

[0001] This invention belongs to the field of profile processing technology, and particularly relates to a multi-cavity extrusion profile mold. Background Technology

[0002] Multi-cavity extruded profiles are widely used in rail transit, building doors and windows, and new energy heat dissipation frames due to their advantages of lightweight and high structural strength.

[0003] Currently, in the extrusion molding process, the effective contact area between the profile and the inner wall of the mold cavity is relatively large. Due to this structural characteristic, the profile is prone to sticking to the mold cavity after extrusion molding, significantly increasing the frictional resistance during demolding and greatly increasing the difficulty of demolding. In conventional demolding operations, if excessive external force is applied, it can easily cause quality defects such as local jamming, positional displacement, overall deformation, and surface scratches, which not only seriously damage the integrity of the profile's appearance but also significantly reduce the dimensional accuracy of the product, leading to a decrease in the finished product's pass rate. In summary, the existing multi-cavity profile extrusion demolding process has obvious technical drawbacks and urgently needs optimization and improvement. Summary of the Invention

[0004] This invention provides a multi-cavity extrusion profile mold, which aims to solve the problems of existing multi-cavity extrusion profile molds where the profiles are easily stuck in the cavity after molding, difficult to demold and remove, and easily damaged during ejection.

[0005] This invention is implemented as follows: a multi-cavity extrusion profile mold includes: a lower mold and an upper mold; the lower mold has multiple interconnected cavities, each cavity having a partition plate for separating spaces; the upper mold has multiple toothed plates fixed on it; the bottom of the mold groove of the lower mold has multiple discharge ports, which are adapted to the toothed plates; an ejector mechanism on the lower mold for ejecting the extruded profile; a drive mechanism on the lower mold for driving the ejector mechanism; and a spraying mechanism on the lower mold for spraying a release agent.

[0006] Preferably, the ejection mechanism includes: an ejector rod symmetrically slidably installed in the mold groove of the lower mold; an ejector block fixed on the ejector rod; and a groove formed in the mold groove of the lower mold, the groove being adapted to the corresponding ejector block.

[0007] Preferably, the driving mechanism includes: a bottom shell mounted below the lower mold, with a platform disposed below the bottom shell; side blocks symmetrically fixed on both sides of the lower mold, with a first guide rod threaded onto the side block, a connecting frame slidably sleeved on the first guide rod, one end of the connecting frame being detachably connected to the upper mold; a first limiting block fixed on the first guide rod; an assembly frame fixed on the bottom end of the top rod; a second guide rod slidably mounted on the assembly frame, the top end of the second guide rod penetrating the bottom shell and fixedly connected to the assembly frame; and a second limiting block fixed on the bottom end of the second guide rod.

[0008] Preferably, the spraying mechanism includes: liquid storage shells symmetrically arranged on both sides of the lower mold for holding release liquid; a press-type nozzle disposed on the liquid storage shell, the inlet end of the press-type nozzle being fixedly connected to a liquid extraction pipe, the inlet end of the liquid extraction pipe extending into the liquid storage shell; an annular groove formed on the inner wall of the mold groove of the lower mold, an annular tube fixed in the annular groove, the annular tube being connected to the outlet end of the press-type nozzle through a conduit; a pressure rod disposed on the press-type nozzle, an anti-slip block being fixed on the pressure rod; a plurality of atomizing nozzles fixedly connected to the annular tube; and a pressure block fixed to the bottom of the connecting frame.

[0009] Preferably, the bottom shell is provided with a collection mechanism for collecting dripping release fluid. The collection mechanism includes: a mesh plate fixed in the bottom shell for separating falling waste; a collection hopper disposed below the mesh plate for collecting dripping release fluid; a drain pipe fixedly connected to the bottom of the collection hopper for connecting to a release fluid recovery device; and positioning blocks symmetrically fixed in the collection hopper, with filter plates disposed on the positioning blocks.

[0010] Preferably, a replenishment pipe is fixedly connected to one side of the liquid storage shell, a funnel is fixedly connected to the replenishment pipe, and a detachable cover is provided on the funnel.

[0011] Preferably, the bottom of the bottom shell has symmetrical openings, which are adapted to the second limiting block and the second guide rod.

[0012] Preferably, the top of the bottom shell is symmetrically provided with mounting grooves, and an assembly block is fixed in the mounting groove by bolts. The top of the assembly block is fixedly connected to the lower mold, and a maintenance plate is fixed to one side of the bottom shell by screws.

[0013] Preferably, a connecting block is fixed on the upper mold for assembling a hydraulic cylinder for extrusion, and a cutting edge is provided at the front end of the toothed plate.

[0014] Preferably, an inlet pipe and a return pipe are fixedly installed on one side of the lower mold. The inlet pipe and the return pipe are respectively used to connect the cooling liquid supply device and the cooling liquid recovery device. The inlet end of the inlet pipe is connected to the cavity, and the inlet end of the return pipe is connected to the cavity. Both the inlet pipe and the return pipe are equipped with solenoid valves.

[0015] Beneficial effects: By integrating a drive mechanism, ejection mechanism, liquid spraying mechanism, cooling circulation structure, and release fluid collection structure into the lower and upper molds, the upper mold and ejector rods are guided by the first and second guide rods. The limiting and matching structure between the ejector block and the groove enhances ejection stability. The liquid spraying mechanism automatically sprays release fluid via the connecting frame and pressure block, reducing the adhesion between multi-cavity profiles and the mold cavity. Simultaneously, the circulating cooling structure composed of the inlet pipe, return pipe, and cavity maintains the mold operating temperature. The release fluid is filtered and recovered using the mesh plate, filter plate, and collection hopper inside the bottom shell. Combined with the front blade of the toothed plate, assembly block, inspection plate, opening, and liquid storage shell, the overall process of mold extrusion, material discharge, cooling, demolding, and maintenance is optimized, improving the problems of jamming, deviation, and scratching during the extrusion molding of multi-cavity profiles. Attached Figure Description

[0016] Figure 1 This is a front view structural schematic diagram of a multi-cavity extrusion profile mold provided by the present invention; Figure 2 This is a schematic diagram of the front sectional view of a multi-cavity extrusion profile mold provided by the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure; Figure 5 for Figure 2 An enlarged structural diagram of section C shown in the figure; Figure 6 This is a schematic diagram of the upper mold in this invention; Figure 7 This is a schematic diagram of the structure of the mesh plate in this invention; Figure 8 This is a schematic diagram of the disassembled structure of the present invention.

[0017] Reference numerals: 1. Lower mold; 2. Upper mold; 3. Cavity; 4. Partition plate; 5. Toothed plate; 6. Discharge port; 7. Liquid inlet pipe; 8. Return pipe; 9. Bottom shell; 10. Frame; 11. Ejector rod; 12. Ejector block; 13. Groove; 14. Assembly frame; 15. First guide rod; 16. Connecting frame; 17. First limiting block; 18. Second guide rod; 19. Second limiting block; 20. Through port; 21. Liquid storage shell; 22. Press-type nozzle; 23. Ring pipe; 24. Atomizing nozzle; 25. Guide tube; 26. Liquid extraction pipe; 27. Pressure rod; 28. Anti-slip block; 29. ​​Pressure block; 30. Liquid replenishment pipe; 31. Funnel; 32. Cover plate; 33. Assembly block; 34. Mesh plate; 35. Collection hopper; 36. Filter plate; 37. Positioning block; 38. Drain pipe; 39. Connecting block; 40. Solenoid valve; 41. Inspection plate; 42. Side block. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a multi-cavity extrusion profile mold, such as... Figure 1-8 As shown, the multi-cavity extrusion profile mold includes: a lower mold 1 and an upper mold 2; the lower mold 1 has multiple interconnected cavities 3, and each cavity 3 is provided with a partition 4 for separating spaces; the upper mold 2 is fixed with multiple toothed plates 5; the bottom of the mold groove of the lower mold 1 has multiple discharge ports 6, and the multiple discharge ports 6 are adapted to the multiple toothed plates 5; an ejection mechanism is provided on the lower mold 1 for ejecting the extruded profile; a driving mechanism is provided on the lower mold 1 for driving the ejection mechanism to operate; and a spraying mechanism is provided on the lower mold 1 for spraying release fluid.

[0020] In this embodiment, during the operation of this multi-cavity extrusion profile mold, the operator first places the profile to be extruded into the mold cavity of the lower mold 1, and the top block 12 of the ejector mechanism supports the profile. Subsequently, the hydraulic cylinder is activated to drive the upper mold 2 to move downward. During the descent of the upper mold 2, the connecting frame 16 moves downward synchronously. The connecting frame 16 further drives the ejector rod 11 and the top block 12 downward, so that the supported profile smoothly enters the mold cavity of the lower mold 1. The upper mold 2 continues to descend and cooperates with the lower mold 1 to extrude and form the profile. The toothed plate 5 contacts the profile, and the excess profile material generated by extrusion can be discharged outward through the discharge port 6. At the same time as the extrusion operation, the cooling liquid supply device continuously delivers cooling liquid into the cavity 3. After the cooling liquid completes the heat exchange, it flows out from the conduit on one side of the cavity 3, circulating to achieve mold cooling. The partition 4 inside the cavity 3 can divide the space to adapt to the forming requirements of multi-cavity profiles and ensure that the extrusion and discharge operation is carried out in an orderly manner. After the profile extrusion molding process is completed, the extrusion drive equipment is turned off, and the spraying mechanism on the lower mold 1 is activated. The spraying mechanism sprays release fluid onto the contact area between the mold cavity and the profile, lubricating the contact surface and weakening the adhesion between them. After the spraying is complete, the drive mechanism on the lower mold 1 is activated. The drive mechanism outputs power to drive the ejection mechanism, which uses its ejector blocks to evenly eject the formed multi-cavity profile, gradually removing it from the cavity of the lower mold 1, thus completing the profile demolding and unloading process. The entire process relies on the coordinated operation of all mechanisms to systematically complete the extrusion, cooling, and demolding of the multi-cavity profile. This mold, by adding an independent spraying mechanism, ejection mechanism, and matching drive mechanism, combined with the multiple cavity structures 3 of the lower mold 1 and the toothed plate structure 5 of the upper mold 2, is suitable for the complex molding and processing requirements of multi-cavity profiles. By spraying release fluid in advance, the adhesion between the molded profile and the inner wall of the mold cavity can be reduced, thus reducing the friction generated during the demolding process. At the same time, relying on the uniform ejection operation mode of the ejection mechanism, the problem of uneven force application in traditional manual or single ejection methods can be improved, reducing the occurrence of jamming, displacement, deformation, and surface scratches during the demolding process, effectively ensuring the appearance and dimensional stability of the multi-cavity profile after molding, and is suitable for batch extrusion molding of multi-cavity, large contact area profiles.

[0021] In a further preferred embodiment of the present invention, the ejection mechanism includes: an ejector rod 11 symmetrically slidably installed in the mold groove of the lower mold 1; an ejector block 12 fixed on the ejector rod 11; and a groove 13 formed in the mold groove of the lower mold 1, wherein the groove 13 is adapted to the corresponding ejector block 12.

[0022] In this embodiment, after the profile extrusion molding operation is completed, the extrusion drive equipment is turned off, and the hydraulic cylinder is controlled to perform a reset action. During the reset process, the hydraulic cylinder drives the ejector rod 11 to slide upward along the inside of the mold groove of the lower mold 1. As the ejector rod 11 rises, it drives the fixedly connected ejector block 12 to move synchronously. Relying on the groove 13 inside the mold groove of the lower mold 1 that matches the ejector block 12, the sliding stroke and position of the ejector block 12 can be limited and matched to ensure the stability of the operation of the ejector rod 11 and the ejector block 12. During the extrusion operation, the ejector block 12 is embedded in the groove 13, which can maintain the fit of the ejected structure and avoid structural displacement problems in the extrusion process.

[0023] In a further preferred embodiment of the present invention, the driving mechanism includes: a bottom shell 9 mounted below the lower mold 1, with a frame 10 disposed below the bottom shell 9; side blocks 42 symmetrically fixed on both sides of the lower mold 1, with a first guide rod 15 threadedly mounted on the side blocks 42, a connecting frame 16 slidably sleeved on the first guide rod 15, one end of the connecting frame 16 being detachably connected to the upper mold 2; a first limiting block 17 fixed on the first guide rod 15; an assembly frame 14 fixed on the bottom end of the top rod 11; a second guide rod 18 slidably mounted on the assembly frame 14, the top end of the second guide rod 18 penetrating the bottom shell 9 and fixedly connected to the assembly frame 14; and a second limiting block 19 fixed on the bottom end of the second guide rod 18.

[0024] In this embodiment, the worker places the profile to be processed inside the mold groove of the lower mold 1, and starts the hydraulic cylinder to drive the upper mold 2 to move downward. During the descent of the upper mold 2, the detachable connecting frame 16 moves synchronously, so that the connecting frame 16 slides along the surface of the first guide rod 15. The first guide rod 15 can constrain the movement trajectory of the connecting frame 16 and the upper mold 2, reducing the probability of deviation during the operation of the upper mold 2.

[0025] As the connecting frame 16 descends with the upper mold 2, it simultaneously drives the second guide rod 18 downwards. The second guide rod 18 penetrates the bottom shell 9 and drives the assembly frame 14 downwards as well. The assembly frame 14 further drives the ejector rod 11 and the ejector block 12 downwards. During the operation, the ejector block 12 is embedded in the groove 13 to maintain a structural fit, thereby completing the positioning process of the profile extrusion molding. After the profile extrusion molding is completed, the hydraulic cylinder is controlled to drive the upper mold 2 to reset upwards. During the upward movement of the upper mold 2, the connecting frame 16 is driven upwards. The second guide rod 18 cooperates with the second limit block 19 at the bottom to pull the connecting frame 16 upwards, while simultaneously driving the assembly frame 14 and the ejector rod 11 to move upwards as a whole. After the ejector rod 11 is lifted, it drives the ejector block 12 to smoothly eject the profile. With the lubrication and de-adhesion effect of the spray mechanism, the profile demolding and material removal operation can be successfully completed. The added drive mechanism of this mold adopts a combination of multiple guide rods and limiting structures. Relying on the sliding fit structure between the first guide rod 15 and the connecting frame 16, it can guide the lifting and lowering movement of the upper mold 2, improve the shaking and deviation of the upper mold 2 during operation, and enhance the stability of profile extrusion molding. Through the linkage structure of the second guide rod 18, the assembly frame 14 and the second limiting block 19, the upper mold 2 and the ejector rod 11 can be synchronously linked, simplifying the overall transmission structure of the mold and making the connection between extrusion positioning and demolding ejection processes smoother. With the matching limiting structure of the ejector block 12 and the groove 13, the stability of the ejection mechanism can be further improved, reducing deformation and scratches caused during profile extrusion and demolding, which is conducive to maintaining the processing quality of multi-cavity profiles and is suitable for routine extrusion processing of complex multi-cavity profiles.

[0026] In a further preferred embodiment of the present invention, the spraying mechanism includes: liquid storage shells 21 symmetrically arranged on both sides of the lower mold 1 for holding release liquid; a press-type nozzle 22 disposed on the liquid storage shell 21, the liquid inlet end of the press-type nozzle 22 being fixedly connected to a liquid extraction pipe 26, the liquid inlet end of the liquid extraction pipe 26 extending into the liquid storage shell 21; an annular groove formed on the inner wall of the mold groove of the lower mold 1, an annular pipe 23 being fixed in the annular groove, the annular pipe 23 being connected to the liquid outlet end of the press-type nozzle 22 through a conduit 25; a pressure rod 27 disposed on the press-type nozzle 22, an anti-slip block 28 being fixed on the pressure rod 27; a plurality of atomizing nozzles 24 fixedly connected to the annular pipe 23; and a pressure block 29 fixed to the bottom of the connecting frame 16.

[0027] In this embodiment, during the die extrusion process, the upper die 2 descends, causing the connecting frame 16 to move downwards synchronously. When the connecting frame 16 descends to a specified height, the pressure block 29 fixed at the bottom of the connecting frame 16 comes into contact with the anti-slip block 28 at the top of the pressure rod 27. As the connecting frame 16 continues to descend, the pressure block 29 presses down on the pressure rod 27. The timing of the pressing operation can be adjusted according to the thickness of the pressure block 29. After the pressure rod 27 is pressed, it triggers the press-type nozzle 22 to work, causing the press-type nozzle 22 to draw out the release fluid inside the liquid storage shell 21 through the liquid extraction pipe 26. The release fluid is then transported to the inside of the ring pipe 23 through the press-type nozzle 22 and the conduit 25, and finally evenly sprayed out through multiple atomizing nozzles 24 arranged on the ring pipe 23. The release fluid is sprayed onto the inner wall of the mold groove of the lower die 1 and the surface of the profile, lubricating the contact area between the profile and the die, weakening the adhesion effect, and facilitating the subsequent profile demolding operation. The linkage-type spraying mechanism of this mold achieves automated spraying operations by relying on the mold's own extrusion stroke. The spraying process is triggered by the downward movement of the connecting frame 16, eliminating the need for additional drive equipment and simplifying the overall mold control process. The anti-slip block 28 increases the contact stability between the pressure block 29 and the pressure rod 27, reducing the probability of slippage and ensuring stable pressing operations. The structure of the ring tube 23 combined with multiple sets of atomizing nozzles 24 allows the release fluid to evenly cover the contact surface between the mold groove and the profile, improving lubrication coverage and effectively reducing the adhesion force between the profile and the mold cavity. This structure, combined with the mold's guiding drive structure and symmetrical ejection structure, effectively improves problems such as jamming, offset, and scratches during demolding of multi-cavity profiles, helping to improve the appearance quality and dimensional stability of the formed profile, and is suitable for batch extrusion processing of complex multi-cavity profiles.

[0028] In a further preferred embodiment of the present invention, a collection mechanism is provided inside the bottom shell 9 for collecting dripping release fluid. The collection mechanism includes: a mesh plate 34 fixed inside the bottom shell 9 for separating fallen waste materials; a collection hopper 35 disposed below the mesh plate 34 for collecting dripping release fluid; a drain pipe 38 fixedly connected to the bottom of the collection hopper 35 for connecting to a release fluid recovery device; and positioning blocks 37 symmetrically fixed inside the collection hopper 35, wherein a filter plate 36 is disposed on the positioning block 37.

[0029] In this embodiment, during the overall extrusion and spraying of the mold, the release liquid dripping from the mold groove and the surface of the profile, as well as a small amount of waste generated during processing, can fall downwards naturally. The mesh plate 34 can separate the falling impurities and waste, reducing the possibility of waste entering the collection structure. The dripping release fluid passes through the mesh plate 34 and falls into the collection hopper 35. As it flows through the filter plate 36 inside the collection hopper 35, the filter plate 36 filters out fine impurities mixed in with the release fluid. The positioning block 37 supports and limits the filter plate 36, ensuring its stable placement and proper filtration operation. The filtered release fluid can be discharged through the drain pipe 38 at the bottom of the collection hopper 35. Workers can connect the drain pipe 38 to a release fluid recovery device to complete the collection and recovery of the release fluid. The collection mechanism is integrated inside the bottom shell 9, requiring no additional external space and exhibiting a high degree of structural integration. Through the double-layer filtration structure of the mesh plate 34 and filter plate 36, the dripping release fluid can be filtered in stages, reducing the impurity content within the recovered release fluid and facilitating subsequent recycling. Simultaneously, it reduces the problem of liquid accumulation on the mold surface caused by random dripping of release fluid, maintaining the cleanliness of the mold operating environment, minimizing the adverse effects of accumulated liquid on the mold structure, and improving the overall practicality and environmental friendliness of the mold operation.

[0030] In a further preferred embodiment of the present invention, a replenishment pipe 30 is fixedly connected to one side of the liquid storage shell 21, a funnel 31 is fixedly connected to the replenishment pipe 30, and a detachable cover plate 32 is provided on the funnel 31.

[0031] In this embodiment, before and after the mold operation, the staff can prepare for replenishment of the release liquid according to the amount of release liquid stored in the liquid storage shell 21. By removing the cover plate 32 on the top of the funnel 31, the feed port of the funnel 31 can be exposed, providing a passage for the release liquid replenishment operation. Workers can pour the release agent into the funnel 31. The release agent flows through the cavity of the funnel 31, through the replenishment pipe 30, and finally flows smoothly into the storage shell 21, thus completing the replenishment of the release agent. After replenishment, workers can reinstall the cover plate 32 on the top of the funnel 31, so that the cover plate 32 blocks and protects the port of the funnel 31, reducing the entry of external dust and impurities into the funnel 31 and the replenishment pipe 30, avoiding the impact of pipe blockage on subsequent spraying operations, and ensuring the orderly conduct of the replenishment and supply process.

[0032] In a further preferred embodiment of the present invention, the bottom of the bottom shell 9 is symmetrically provided with openings 20, and the openings 20 are adapted to the second limiting block 19 and the second guide rod 18.

[0033] In this embodiment, the through 20 can provide clearance space for the movement of the second guide rod 18 and the second limiting block 19, so that the second guide rod 18 can normally drive the assembly frame 14 to complete the lifting linkage operation. Throughout the entire process of the upper mold 2 descending and extruding and rising and resetting, the second guide rod 18 and the second limit block 19 maintain a smooth sliding state by relying on the through port 20. The through port 20 can avoid the obstruction and interference of the bottom shell 9 on the vertical movement of the second guide rod 18, and ensure the integrity of the overall linkage stroke of the drive mechanism.

[0034] In a further preferred embodiment of the present invention, the top of the bottom shell 9 is symmetrically provided with mounting grooves, and an assembly block 33 is fixed in the mounting groove by bolts. The top of the assembly block 33 is fixedly connected to the lower mold 1, and a maintenance plate 41 is fixed on one side of the bottom shell 9 by screws.

[0035] In this embodiment, during the mold assembly process, the worker can place the assembly block 33 in the mounting groove at the top of the bottom shell 9, lock and fix the assembly block 33 with bolts, and then connect and fix the upper end of the assembly block 33 to the lower mold 1, thereby completing the alignment and assembly of the bottom shell 9 and the lower mold 1. The mounting groove can limit the arrangement of the assembly block 33, making it convenient for the worker to align and install it. During routine use of the mold, the bottom shell 9 integrates core components such as a collection mechanism and guide rod transmission. When it is necessary to inspect, maintain, or clean the internal structure of the bottom shell 9, the operator can remove the screws fixing one side of the bottom shell 9 and remove the inspection plate 41 to expose the internal cavity space of the bottom shell 9, facilitating the inspection, dust removal, and maintenance of the internal components. After the maintenance is completed, the inspection plate 41 can be reattached to the side wall of the bottom shell 9 and the screws tightened to restore the sealed and protective state of the bottom shell 9.

[0036] In a further preferred embodiment of the present invention, a connecting block 39 is fixed on the upper mold 2 for assembling a hydraulic cylinder for extrusion, and a cutting edge is provided at the front end of the toothed plate 5.

[0037] In this embodiment, during the die extrusion process, the hydraulic cylinder drives the upper die 2 to move downwards via the connecting block 39, so that the toothed plate 5 presses against the surface of the profile. The cutting edge at the front end of the toothed plate 5 can cut the excess material overflowing during the profile extrusion process, and assist the excess material to be discharged outwards from the discharge port 6. This, together with the overall die extrusion structure, completes the profile forming operation, ensuring the orderly progress of the profile extrusion forming process and reducing the interference of excess material accumulation on the extrusion operation.

[0038] By adding a connecting block 39 to the upper mold 2, the assembly and installation of the extrusion hydraulic cylinder can be standardized, optimizing the transmission and cooperation between the hydraulic cylinder and the upper mold 2, reducing loosening deviations during power transmission, and improving the stability of the upper mold 2's lifting and extrusion operation. The cutting edge at the front end of the toothed plate 5 can cut and trim the extrusion residue, optimizing the mold material discharge effect, reducing the adhesion and accumulation of residue, helping to maintain the flatness of the profile forming end face, and assisting in improving the overall forming quality of multi-cavity profiles.

[0039] In a further preferred embodiment of the present invention, an inlet pipe 7 and a return pipe 8 are fixedly installed on one side of the lower mold 1. The inlet pipe 7 and the return pipe 8 are respectively used to connect the cooling liquid supply device and the cooling liquid recovery device. The inlet end of the inlet pipe 7 is connected to the cavity 3, and the inlet end of the return pipe 8 is connected to the cavity 3. Both the inlet pipe 7 and the return pipe 8 are equipped with a solenoid valve 40.

[0040] In this embodiment, during the equipment assembly stage, the operator can connect the inlet pipe 7 to a cooling liquid supply device and the return pipe 8 to a cooling liquid recovery device to build a complete cooling liquid circulation path, providing structural support for the cooling operation during the mold extrusion process.

[0041] During the profile extrusion process, operators can open the solenoid valves 40 on the inlet pipe 7 and the return pipe 8, allowing the cooling liquid inside the cooling liquid supply device to be transported through the inlet pipe 7 to the cavity 3, thus exchanging heat and cooling the lower mold 1 and the profile extrusion area. After heat exchange, the cooling liquid can be connected to the return pipe 8 through the cavity 3, and then transported to an external recovery device, thereby achieving the circulation of the cooling liquid and continuously removing the heat generated by the mold extrusion process, ensuring the continuous operation of the extrusion process. Operators can control the on / off state of the pipeline using the solenoid valves 40 to adapt to the cooling needs of different operation stages. This structure forms a closed-loop cooling circulation channel through the inlet pipe 7 and the return pipe 8 in conjunction with the cavity 3. This allows for continuous heat exchange and cooling of the multi-cavity extrusion die, alleviating the temperature rise problem caused by continuous extrusion operations and reducing the impact of high temperatures on the profile forming state and die lifespan. Two independent solenoid valves 40 are configured for each pipeline, allowing for separate control of the liquid supply and return conditions, improving the controllability of the cooling operation and adapting to various processing conditions, including intermittent and continuous die processing.

[0042] In summary, compared with related technologies, by integrating a drive mechanism, an ejection mechanism, a spraying mechanism, a cooling circulation structure, and a release fluid collection structure on the basis of the lower mold 1 and the upper mold 2, the linkage guiding motion of the upper mold 2 and the ejector rod 11 is realized by relying on the first guide rod 15 and the second guide rod 18. The limiting and matching structure of the ejector block 12 and the groove 13 is used to improve the ejection stability. The spraying mechanism is automatically sprayed with release fluid by the linkage pressure block 29 through the connecting frame 16, thereby reducing the adhesion between the multi-cavity profile and the mold cavity. Meanwhile, the circulating cooling structure composed of the inlet pipe 7, the return pipe 8 and the cavity 3 maintains the mold operating temperature. The mesh plate 34, filter plate 36 and collection hopper 35 inside the bottom shell 9 are used to filter and recover the demolding liquid. The matching liquid replenishment structure with the front blade of the toothed plate 5, the assembly block 33, the inspection plate 41, the through port 20 and the liquid storage shell 21 optimizes the mold extrusion, material discharge, cooling, demolding and operation and maintenance process, and improves the problems of jamming, deviation and scratching in the extrusion molding of multi-cavity profiles.

[0043] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0044] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not depart from the concept of the present invention. These technical solutions are also within the scope of protection of the present invention.

Claims

1. A multi-cavity extrusion profile mold, characterized in that, include: Lower mold and upper mold; The lower mold has multiple interconnected cavities, and each cavity is equipped with a partition to separate the space. Multiple toothed plates are fixed on the upper mold; The bottom of the mold groove of the lower mold is provided with multiple discharge ports, and the multiple discharge ports are adapted to the multiple toothed plates; An ejection mechanism provided on the lower mold is used to eject the extruded profile. The drive mechanism installed on the lower mold is used to drive the ejection mechanism to operate; A spraying mechanism installed on the lower mold is used to spray release fluid.

2. The multi-cavity extrusion profile mold as described in claim 1, characterized in that, The ejection mechanism includes: A push rod symmetrically slidably installed in the mold groove of the lower mold; A top block fixed to the top rod; A groove is formed in the mold slot of the lower mold, and the groove is adapted to the corresponding top block.

3. The multi-cavity extrusion profile die as described in claim 2, characterized in that, The drive mechanism includes: A bottom shell is assembled below the lower mold, and a platform is provided below the bottom shell; Side blocks are symmetrically fixed on both sides of the lower mold. A first guide rod is threaded onto the side block. A connecting frame is slidably sleeved on the first guide rod. One end of the connecting frame is detachably connected to the upper mold. A first limiting block fixed on the first guide rod; An assembly frame fixed to the bottom end of the top rod; A second guide rod is slidably mounted on the assembly frame, the top end of the second guide rod penetrating the bottom shell and being fixedly connected to the assembly frame; The second limiting block is fixed to the bottom end of the second guide rod.

4. The multi-cavity extrusion profile mold as described in claim 3, characterized in that, The liquid spraying mechanism includes: The liquid storage shells symmetrically arranged on both sides of the lower mold are used to hold the release liquid; A press-type nozzle is installed on the liquid storage shell, and the liquid inlet end of the press-type nozzle is fixedly connected to a liquid extraction pipe, the liquid inlet end of the liquid extraction pipe extending into the liquid storage shell. An annular groove is formed on the inner wall of the mold groove of the lower mold, and an annular tube is fixed in the annular groove. The annular tube is connected to the liquid outlet end of the press-type nozzle through a conduit. A pressure bar is provided on the press-type nozzle, and an anti-slip block is fixed on the pressure bar; Multiple atomizing nozzles are fixedly connected to the ring pipe; The pressure block is fixed to the bottom of the connecting frame.

5. The multi-cavity extrusion profile die as described in claim 4, characterized in that, The bottom shell is provided with a collection mechanism for collecting dripping release liquid, the collection mechanism comprising: A mesh plate fixed inside the bottom shell is used to separate falling waste materials; A collection hopper located below the screen is used to collect dripping release liquid; A drain pipe is fixedly connected to the bottom of the collection hopper for connecting to a release liquid recovery device; A positioning block is symmetrically fixed inside the collection hopper, and a filter plate is provided on the positioning block.

6. The multi-cavity extrusion profile die as described in claim 4, characterized in that, A replenishment pipe is fixedly connected to one side of the liquid storage shell, and a funnel is fixedly connected to the replenishment pipe. A detachable cover is provided on the funnel.

7. The multi-cavity extrusion profile die as described in claim 3, characterized in that, The bottom of the base shell has symmetrical openings, which are adapted to the second limiting block and the second guide rod.

8. The multi-cavity extrusion profile die as described in claim 3, characterized in that, The top of the bottom shell has symmetrically opened mounting grooves, and an assembly block is fixed in the mounting groove by bolts. The top of the assembly block is fixedly connected to the lower mold, and a maintenance plate is fixed to one side of the bottom shell by screws.

9. The multi-cavity extrusion profile die as described in claim 1, characterized in that, A connecting block is fixed on the upper mold for assembling a hydraulic cylinder for extrusion, and a cutting edge is provided at the front end of the toothed plate.

10. The multi-cavity extrusion profile die as described in claim 1, characterized in that, A liquid inlet pipe and a return pipe are fixedly installed on one side of the lower mold. The liquid inlet pipe and the return pipe are respectively used to connect the cooling liquid supply device and the cooling liquid recovery device. The liquid inlet end of the liquid inlet pipe is connected to the cavity, and the liquid inlet end of the return pipe is connected to the cavity. Both the liquid inlet pipe and the return pipe are equipped with solenoid valves.

Images