Die mechanism of aluminum profile extrusion press

Abstract

The present invention discloses a die-pressing mechanism for an aluminum profile extruder, belonging to the technical field of aluminum profile manufacturing. The die-pressing mechanism includes a die pad and a die core. The inner side wall of the die pad is fixedly connected to a plurality of diverter plates. The diverter plates are provided with two receiving grooves. The inner end faces of the receiving grooves are connected to a temperature sensing component for monitoring the temperature of the aluminum blank via a plurality of arc-shaped support plates. The present invention, through the arrangement of the temperature sensing component and the pressure sensor, can utilize the cooperation of the heat conducting plate and the temperature sensor to monitor the temperature distribution of each part of the cross section during the extrusion process in real time. Combined with the pressure sensor to detect sudden changes in the extrusion force, the pressure and pressure two-dimensional abnormality diagnosis is realized. At the same time, the arrangement of the buffer component and the enhanced triangular seat can utilize the pressure on the adjustment plate to trigger the U-tube hydraulic conduction and the buffer spring to absorb energy in a dual manner, dispersing the stress at the connection between the diverter plate and the die pad. The enhanced triangular seat pushes outward to synchronously drive the movement of the buffer seats on both sides, and the hydraulic oil damping formed by the baffle plate is used to achieve dynamic pressure balance.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum profile manufacturing, in particular to a die pressing mechanism of an aluminum profile extruder. Background Art

[0002] Aluminum profile is an aluminum alloy material formed by an extrusion process and is widely used in construction, industry, transportation and other fields. When manufacturing aluminum profiles, the alloy is usually first melted into a cylindrical blank, and then an extruder is used to extrude the cross-sectional shape through a die.

[0003] When forming aluminum profiles with larger cross-sectional dimensions, the cross-sectional dimensions of the aluminum blanks required will also be correspondingly larger. This requires that during the extrusion forming process of the aluminum profile blanks using the die of an extruder, the temperature of each part of the blanks with larger cross-sectional dimensions needs to be balanced to keep the aluminum blanks relatively soft, and to avoid low temperatures in some areas that affect the forming of the aluminum profiles. At the same time, if a blockage occurs in the die mechanism, it is easy to cause a sudden increase in pressure on the diversion part of the aluminum blank, thereby damaging the entire die mechanism. Moreover, when extruding aluminum blanks with larger cross-sectional dimensions, the extruder usually needs to apply a greater extrusion force, and the concentrated stress on the connection part between the diversion area of ​​the die mechanism and the outside will be further increased, thereby reducing the service life. Therefore, a die mechanism of an aluminum profile extruder is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that when extruding aluminum billets with larger cross-sectional dimensions, the extruder usually needs to apply a greater extrusion force, which further increases the concentrated stress on the connection between the diversion area of ​​the die mechanism and the outside, thereby reducing the service life. The die mechanism of the aluminum profile extruder is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The die mechanism of the aluminum profile extruder includes a die pad and a die core. The inner side wall of the die pad is fixedly connected to multiple diverter plates. Two receiving grooves are provided on the diverter plates. The inner end surfaces of the receiving grooves are connected to temperature sensing components for monitoring the temperature of the aluminum blank via multiple arc-shaped support plates. Pressure sensors are provided between the multiple arc-shaped support plates. The inner side wall of the die pad is connected to multiple adjustment plates. The adjustment plates are connected to a reinforced triangular seat via a piston assembly. The bottom end of the reinforced triangular seat is fixedly connected to a fixed triangular plate. The bottom end of the fixed triangular plate is connected to a buffer seat. The front and rear side walls of the buffer seat are both connected to buffer assemblies.

[0007] The top of the mold core is connected to a working belt, a cooling cavity is provided on the outside of the mold core and the working belt, the bottom of the cooling cavity is connected to a constant pressure conversion cavity, the constant pressure conversion cavity is connected to a plurality of cooling pipes, a pressure regulating bucket is provided in the cooling pipe, and a compression valve ball is provided at the bottom of the pressure regulating bucket.

[0008] Preferably, the outer side wall of the die pad is fixedly connected with a mounting sleeve, the multiple diverter plates are commonly connected with a converging shaft, a welding chamber is provided on the outer side of the bottom end of the converging shaft, and the bottom end of the die pad is fixedly assembled with the cooling cavity through the welding chamber.

[0009] Preferably, the temperature sensing component consists of a heat conducting plate and a heat conducting column, the bottom end of the heat conducting plate is fixedly connected to the heat conducting column, a temperature sensor is provided in the heat conducting column, the bottom end of the heat conducting column is fixedly connected to the inner end face of the receiving groove on the diverter plate through a plurality of arc-shaped support plates, and the bottom end of the heat conducting column is connected to the pressure sensor.

[0010] Preferably, the piston assembly consists of a U-shaped tube and two piston columns, the two ends of the U-shaped tube are slidingly connected to the two piston columns respectively, hydraulic oil is provided in the U-shaped tube, the piston column located above is fixedly connected to the adjustment plate, and the piston column located below is fixedly connected to the reinforced triangular seat, and the upper side wall of the reinforced triangular seat is a slightly inclined surface.

[0011] Preferably, the buffer assembly consists of a buffer tube and a buffer plate, the buffer tube and the buffer plate are slidingly connected, the bottom end of the fixed triangular plate is fixedly connected to the buffer seat, the bottom end of the die pad is fixedly connected to a plurality of retaining seats located at the diverter plate, the retaining seat is fixedly connected to a buffer sleeve, and the two ends of the buffer sleeve are respectively fixedly connected to the two buffer tubes.

[0012] Preferably, the inner side wall of the buffer sleeve is slidably connected to the buffer seat, the front and rear side walls of the buffer seat are fixedly connected with a follower plate, the follower plate is fixedly connected to the buffer plate through a fixed rod, a buffer spring is provided on the outer sleeve of the fixed rod, the inner side wall of the buffer tube is fixedly connected with a baffle, and the buffer tube is filled with hydraulic oil.

[0013] Preferably, a plurality of cooling grooves are provided in the cooling cavity for fixing the cooling pipe, a cold flow cavity and a hot flow cavity are respectively provided on the outer ring and the inner ring of the constant pressure conversion cavity, the two ends of the cooling pipe are respectively connected to the cold flow cavity and the hot flow cavity, and the inner wall of the bottom end of the constant pressure conversion cavity is connected to an adaptive cooling plate through a plurality of cooling pipes.

[0014] Preferably, a fixed orifice plate is fixedly connected to the inner wall of the inward end of the cooling pipe, the bottom end of the fixed orifice plate is fixedly connected to the clamping valve ball through a return spring, the bottom end of the fixed orifice plate is fixedly connected to the top of the pressure regulating bucket, and the diameter of the clamping valve ball is larger than the inner diameter of the bottom end of the pressure regulating bucket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This solution uses the temperature sensing component and pressure sensor to cooperate with the heat conducting plate and temperature sensor to monitor the temperature distribution of each part of the cross section during the extrusion process in real time. Combined with the pressure sensor to detect sudden changes in extrusion pressure, it can realize dual-dimensional abnormal diagnosis of temperature and pressure, making it easier to distinguish between uneven heating and extrusion blockage.

[0017] 2. Through the setting of the buffer assembly and the enhanced triangular seat, this solution can utilize the pressure on the adjustment plate to trigger the U-tube hydraulic conduction and the buffer spring to absorb dual energy, disperse the stress at the connection between the diverter plate and the die pad, and enhance the outward push of the triangular seat to synchronously drive the movement of the buffer seats on both sides. The hydraulic oil damping formed by the baffle plate realizes dynamic pressure balance and realizes hydraulic and mechanical composite buffering.

[0018] 3. This solution uses a constant pressure conversion chamber and a pressure regulating bucket to ensure consistent outlet pressures for each cooling pipe. It also dynamically adjusts the flow rate by tightening the valve bead, thereby reducing differences in cooling rates after aluminum extrusion, reducing deformation and warping, and solving micro-crack problems in thin-walled areas caused by excessive cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the die mechanism of the aluminum profile extruder proposed by the present invention;

[0020] Figure 2 This is an assembly diagram of the die mechanism of the aluminum profile extruder proposed by the present invention;

[0021] Figure 3 This is a schematic structural diagram of the temperature sensing component in the die mechanism of the aluminum profile extruder proposed by the present invention;

[0022] Figure 4 This is a structural schematic diagram of the bottom of the die pad in the die pressing mechanism of the aluminum profile extruder proposed by the present invention;

[0023] Figure 5 This is a schematic structural diagram of the piston assembly in the die-forming mechanism of the aluminum profile extruder proposed by the present invention;

[0024] Figure 6 This is a schematic structural diagram of the connection between the buffer sleeve and the buffer tube in the die mechanism of the aluminum profile extruder proposed by the present invention;

[0025] Figure 7 This is a schematic structural diagram of the buffer assembly in the die mechanism of the aluminum profile extruder proposed by the present invention;

[0026] Figure 8 This is a structural schematic diagram of the positions of multiple cooling pipes in the die mechanism of the aluminum profile extruder proposed by the present invention;

[0027] Figure 9This is a partial cross-sectional view of the inward end of the cooling pipe in the die mechanism of the aluminum profile extruder proposed by the present invention.

[0028] In the figure: 1. Die pad; 2. Die core; 3. Mounting sleeve; 4. Flow-gathering shaft; 5. Diverter plate; 6. Heat-conducting plate; 7. Heat-conducting column; 8. Arc-shaped support plate; 9. Pressure sensor; 10. Adjusting plate; 11. Piston column; 12. U-shaped tube; 13. Reinforced triangular seat; 14. Fixed triangular plate; 15. Retaining seat; 16. Buffer sleeve; 17. Buffer tube; 18. Buffer seat; 19. Follower plate; 20. Buffer spring; 21. Buffer plate; 22. Baffle; 23. Welding chamber; 24. Working belt; 25. Cooling chamber; 26. Constant pressure conversion chamber; 27. Adaptive cooling plate; 28. Cooling tube; 29. ​​Fixed orifice plate; 30. Pressure regulating bucket; 31. Return spring; 32. Pressing valve ball. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0032] Example, see Figures 1 to 9The die mechanism of the aluminum extrusion machine includes a die pad 1 and a die core 2. The inner side wall of the die pad 1 is fixedly connected to a plurality of diverter plates 5. The diverter plates 5 are provided with two receiving grooves. The inner end surface of the receiving groove is connected to a temperature sensing component for monitoring the temperature of the aluminum blank through a plurality of arc-shaped support plates 8. A pressure sensor 9 is provided between the plurality of arc-shaped support plates 8.

[0033] Furthermore, the outer wall of the die pad 1 is fixedly connected to a mounting sleeve 3, and multiple diverter plates 5 are commonly connected to a converging shaft 4. A welding chamber 23 is provided on the outer side of the bottom end of the converging shaft 4. The bottom end of the die pad 1 is fixedly assembled with the cooling chamber 25 through the welding chamber 23. The temperature sensing component consists of a heat conducting plate 6 and a heat conducting column 7. The bottom end of the heat conducting plate 6 is fixedly connected to the heat conducting column 7. A temperature sensor is provided in the heat conducting column 7. The bottom end of the heat conducting column 7 is fixedly connected to the inner end surface of the receiving groove on the diverter plate 5 through multiple arc-shaped support plates 8. The bottom end of the heat conducting column 7 is connected to the pressure sensor 9.

[0034] Among them, the cross-sectional area of ​​the heat conducting plate 6 in the storage groove is small, which will not affect the extrusion and diversion of the aluminum billet. At the same time, the arc-shaped support plate 8 is made of high-strength material to support the temperature sensing component. The pressure sensor 9 is provided with a heat-insulating material outside to avoid affecting the test. In addition, the more conventional technical means are not described in detail here.

[0035] It should be noted that: the aluminum billet after heating is placed on the hydraulic output end of the extruder. Then, under the hydraulic pressure of the extruder, the aluminum billet will enter the axial position of the die pad 1. As the extruder continuously applies extrusion pressure, the aluminum billet in the high-temperature state will be pressed into aluminum fluid. During this process, the heat conducting plate 6 is in direct contact with the high-temperature aluminum billet, and the internal energy released by the aluminum billet from solid to liquid will also be directly conducted to the heat conducting column 7 by the heat conducting plate 6. The temperature sensor in the heat conducting column 7 will measure the conducted temperature, and then the temperature of each part of the aluminum billet with a larger cross section will be monitored in real time during the extrusion process. If the temperature difference between different parts is large, it means that the temperature of each part of the aluminum billet is not balanced after heating and heat preservation, or the extrusion state of each part is inconsistent, resulting in inconsistent internal energy release. In this case, it is necessary to stop extrusion in time, determine the processing problem, and then proceed with subsequent processing. During the temperature monitoring process, the pressure sensor 9 will also monitor the extrusion pressure state of different parts in real time. If the part with abnormal temperature also has an abnormal increase in extrusion pressure, it is very likely that there is an extrusion blockage here, which is convenient for on-site staff to promptly determine the fault situation and quickly make processing adjustments.

[0036] The above advantages are as follows: the heat conducting plate 6 and the pressure sensor 9 can be used in conjunction to monitor the temperature and pressure conditions at various locations on the aluminum billet cross section during the aluminum billet extrusion and diversion stage, making it easy to quickly and preliminarily determine the type of problem occurring during the aluminum billet processing process based on whether the locations of temperature and pressure abnormalities are consistent.

[0037] The inner wall of the die pad 1 is connected to a plurality of adjustment plates 10, which are connected to a reinforced triangular seat 13 through a piston assembly. The bottom end of the reinforced triangular seat 13 is fixedly connected to a fixed triangular plate 14, and the bottom end of the fixed triangular plate 14 is connected to a buffer seat 18. The front and rear side walls of the buffer seat 18 are connected to buffer assemblies.

[0038] Furthermore, the piston assembly is composed of a U-shaped tube 12 and two piston rods 11. The two ends of the U-shaped tube 12 are respectively connected to the two piston rods 11 in a sliding manner. Hydraulic oil is provided in the U-shaped tube 12. The piston rod 11 at the top is fixedly connected to the adjustment plate 10. The piston rod 11 at the bottom is fixedly connected to the enhanced triangular seat 13. The upper side wall of the enhanced triangular seat 13 is a slightly inclined surface. The buffer assembly is composed of a buffer tube 17 and a buffer plate 21. The buffer tube 17 and the buffer plate 21 are slidably connected. The bottom end of the fixed triangular plate 14 is fixed to the buffer seat 18. Fixed connection, the bottom end of the die pad 1 is fixedly connected to a plurality of retaining seats 15 located at the diverter plate 5, the retaining seat 15 is fixedly connected to a buffer sleeve 16, the two ends of the buffer sleeve 16 are respectively fixedly connected to two buffer tubes 17, the inner side wall of the buffer sleeve 16 is slidably connected to the buffer seat 18, the front and rear side walls of the buffer seat 18 are fixedly connected to a follower plate 19, the follower plate 19 is fixedly connected to the buffer plate 21 through a fixed rod, the outer sleeve of the fixed rod is provided with a buffer spring 20, the inner wall of the buffer tube 17 is fixedly connected to a baffle 22, and the buffer tube 17 is filled with hydraulic oil;

[0039] It should be noted that when the aluminum billet is extruded in the die pad 1, the arc surface of the multiple adjustment plates 10 will be squeezed, and the adjustment plate 10 will be pressed to drive the upper piston rod 11 to press into the U-shaped tube 12. The hydraulic oil inside the U-shaped tube 12 will transmit the pressure to the piston rod 11 below, pushing the enhanced triangular seat 13 outward. The outward movement of the enhanced triangular seat 13 will press against the connection between the diverter plate 5 and the die pad 1. In the process of outward movement, the enhanced triangular seat 13 will drive the fixed triangular plate 14 to move outward synchronously, and the fixed triangular plate 1 4 will drive the two buffer seats 18 at the bottom to move, and the movement of the buffer seats 18 will drive the two follower plates 19 to move synchronously. Then, the front follower plate 19 will compress the buffer spring 20 and push the buffer plate 21, and the rear follower plate 19 will stretch the buffer spring 20 and pull the buffer plate 21 (the initial positions of the two buffer plates 21 are a certain distance from the end of the buffer tube 17). Then, the hydraulic oil inside the front buffer tube 17 will be pressurized, and the spoiler 22 will hinder the flow of hydraulic oil, cooperating with the buffer spring 20 to achieve buffering movement;

[0040] The above advantages are as follows: the cooperation between the buffer spring 20 and the buffer plate 21 can be used to achieve hydraulic buffer support for the reinforced triangular seat 13, thereby strengthening the support for the connection between the diverter plate 5 and the die pad 1, and avoiding excessive concentrated stress at the connection between the diverter plate 5 and the die pad 1, which may cause damage to the die pressing mechanism;

[0041] The top of the mold core 2 is connected to a working belt 24. A cooling chamber 25 is provided on the outside of the mold core 2 and the working belt 24. The bottom of the cooling chamber 25 is connected to a constant pressure conversion chamber 26. The constant pressure conversion chamber 26 is connected to multiple cooling pipes 28. A pressure regulating bucket 30 is provided in the cooling pipe 28. A compression valve ball 32 is provided at the bottom of the pressure regulating bucket 30.

[0042] Furthermore, a plurality of cooling grooves are provided in the cooling chamber 25 for fixing the cooling pipe 28. A cold flow chamber and a hot flow chamber are respectively provided on the outer ring and the inner ring of the constant pressure conversion chamber 26. Both ends of the cooling pipe 28 are communicated with the cold flow chamber and the hot flow chamber respectively. The inner side wall of the bottom end of the constant pressure conversion chamber 26 is connected to an adaptor cooling plate 27 through a plurality of cooling pipes 28. The inner side wall of the inward end of the cooling pipe 28 is fixedly connected to a fixed orifice plate 29. The bottom end of the fixed orifice plate 29 is fixedly connected to a compression valve ball 32 through a return spring 31. The bottom end of the fixed orifice plate 29 is fixedly connected to the top of the pressure regulating bucket 30. The diameter of the compression valve ball 32 is larger than the inner diameter of the bottom end of the pressure regulating bucket 30.

[0043] It should be noted that after the aluminum billet is extruded into a liquid state, it flows along the converging shaft 4 and flows into the welding chamber 23, and then transitions to the mold core 2 along the working belt 24 for the final extrusion molding. During this process, the external cooling liquid will enter the external cold flow chamber of the constant pressure conversion chamber 26, and then the external cold flow chamber is filled with a constant pressure state. As the pressure gradually increases, the pressure of the liquid introduced into the cooling pipe 28 gradually increases, so that the liquid squeezing force on the clamping valve ball 32 increases. When the pressure is greater than the elastic force of the return spring 31, the clamping valve ball 32 will generate a gap with the bottom end of the pressure regulating bucket 30, thereby causing the liquid in multiple cooling pipes 28 to flow out synchronously, realizing synchronous cooling of the working belt 24 and the outside of the mold core 2. The cooling liquid in the cooling pipe 28 on one side of the adaptive cooling plate 27 will enter the adaptive cooling plate 27, and perform targeted cooling on the outside of the aluminum profile extruded by the mold core 2, so as to avoid the situation where the aluminum profile is extruded on one side of the mold core 2 while the other sides are difficult to cool evenly.

[0044] The above advantages are as follows: by utilizing the cooperation between the constant pressure conversion chamber 26 and the pressure regulating bucket 30, the cooling liquid can be released synchronously from the cooling pipe 28, and the flow rate of the cooling liquid in each part can be guaranteed to be consistent under the same pressure state, thereby ensuring balanced and consistent cooling of the extruded parts of the aluminum profile, thereby achieving better forming effect of the aluminum profile;

[0045] When the present invention is in use, the aluminum billet after heating is placed on the hydraulic output end of the extruder. Then, under the hydraulic pressure of the extruder, the aluminum billet will enter the axial position of the die pad 1. As the extruder continuously applies extrusion pressure, the aluminum billet in the high-temperature state will be pressed into aluminum fluid. During this process, the heat conducting plate 6 is in direct contact with the high-temperature aluminum billet, and the internal energy released by the aluminum billet from solid to liquid will also be directly conducted to the heat conducting column 7 by the heat conducting plate 6. The temperature sensor in the heat conducting column 7 will measure the conducted temperature, and then monitor in real time whether the temperature of each part of the aluminum billet with a larger cross-section is consistent during the extrusion process. If there is a large temperature difference between different parts, it means that the temperature of each part of the aluminum billet after heating and insulation is uneven, or the extrusion of each part is uneven. If the state is inconsistent and the released internal energy is inconsistent, it is necessary to stop extrusion in time, determine the processing problem, and then proceed with subsequent processing. During the temperature monitoring process, the pressure sensor 9 will also monitor the extrusion pressure state of different parts in real time. If the part with abnormal temperature also has an abnormal situation of sudden increase in extrusion pressure, it is very likely that there is an extrusion blockage here, which is convenient for on-site staff to judge the fault situation in time and make processing adjustments quickly. In this way, the cooperation of the heat conducting plate 6 and the pressure sensor 9 can be used to monitor the temperature and pressure conditions of various parts of the aluminum billet cross section during the stage of aluminum billet extrusion and diversion, so as to quickly and preliminarily determine the type of problem occurring in the aluminum billet processing process based on whether the parts with abnormal temperature and pressure are consistent.

[0046] When the aluminum blank is extruded in the die pad 1, the arc surface of multiple adjustment plates 10 will be squeezed. The adjustment plate 10 will be pressed to drive the upper piston rod 11 to press into the U-shaped tube 12. The hydraulic oil inside the U-shaped tube 12 will transmit the pressure to the piston rod 11 below, pushing the enhanced triangular seat 13 outward. The outward movement of the enhanced triangular seat 13 will press tightly against the connection between the diverter plate 5 and the die pad 1. The enhanced triangular seat 13 will drive the fixed triangular plate 14 to move outward synchronously during the outward movement. The fixed triangular plate 14 will drive the two buffer seats 18 at the bottom to move. The movement of the buffer seat 18 will drive the two follower plates 19 to move synchronously, and the front follower plate 19 will compress The buffer spring 20 pushes the buffer plate 21, and the follower plate 19 on the rear side stretches the buffer spring 20 and pulls the buffer plate 21 (the initial positions of the two buffer plates 21 are both at a certain distance from the end of the buffer tube 17). Then, the hydraulic oil inside the front buffer tube 17 will be pressurized, and the baffle plate 22 will hinder the flow of the hydraulic oil, cooperating with the buffer spring 20 to perform buffering movement. In this way, the cooperation between the buffer spring 20 and the buffer plate 21 can be used to achieve hydraulic buffering support for the reinforced triangular seat 13, strengthen the support for the connection between the diverter plate 5 and the die pad 1, and avoid excessive concentrated stress at the connection between the diverter plate 5 and the die pad 1, which may cause damage to the die pressing mechanism.

[0047] After the aluminum billet is extruded into liquid, it flows along the converging shaft 4 and flows into the welding chamber 23, and then transitions to the mold core 2 along the working belt 24 for the final extrusion molding. During this process, the external cooling liquid will be introduced into the external cold flow cavity of the constant pressure conversion cavity 26, and then the external cold flow cavity is filled with a constant pressure state. As the pressure gradually increases, the pressure of the liquid introduced into the cooling pipe 28 gradually increases, so that the liquid extrusion force on the clamping valve ball 32 increases. When the pressure is greater than the elastic force of the return spring 31, the clamping valve ball 32 will produce a gap with the bottom end of the pressure regulating bucket 30, thereby making the liquid in multiple cooling pipes 28 The cooling liquid flows out in steps, realizing synchronous cooling of the working belt 24 and the outside of the mold core 2. The cooling liquid in the cooling pipe 28 on one side of the adaptive cooling plate 27 will enter the adaptive cooling plate 27, and perform targeted cooling on the outside of the aluminum profile extruded by the mold core 2, so as to avoid the situation that when the aluminum profile is extruded on one side of the mold core 2, the other sides are difficult to cool evenly. In this way, the cooperation of the constant pressure conversion chamber 26 and the pressure regulating bucket 30 can be utilized to synchronously release the cooling liquid from the cooling pipe 28, and ensure that the flow rate of the cooling liquid in each part is consistent under the same pressure state, thereby ensuring balanced and consistent cooling of the extruded parts of the aluminum profile, so that the forming effect of the aluminum profile is better.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A die mechanism of an aluminum profile extruder, comprising a die pad (1) and a die core (2), characterized in that: The die pad (1) is fixedly connected to the inner side wall with a plurality of diverter plates (5), and the diverter plates (5) are provided with two receiving grooves. The inner end faces of the receiving grooves are connected to temperature sensing components for monitoring the temperature of the aluminum embryo through a plurality of arc-shaped support plates (8), and a pressure sensor (9) is provided between the plurality of arc-shaped support plates (8). The die pad (1) is connected to the inner side wall with a plurality of adjustment plates (10), and the adjustment plates (10) are connected to an enhanced triangular seat (13) through a piston assembly. The bottom end of the enhanced triangular seat (13) is fixedly connected to a fixed triangular plate (14), and the bottom end of the fixed triangular plate (14) is connected to a buffer seat (18), and the front and rear side walls of the buffer seat (18) are both connected to a buffer assembly. The top end of the mold core (2) is connected to a working belt (24), a cooling cavity (25) is provided on the outside of the mold core (2) and the working belt (24), the bottom end of the cooling cavity (25) is connected to a constant pressure conversion cavity (26), the constant pressure conversion cavity (26) is connected to a plurality of cooling pipes (28), a pressure regulating hopper (30) is provided in the cooling pipe (28), and a pressing valve ball (32) is provided at the bottom of the pressure regulating hopper (30).

2. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The outer wall of the die pad (1) is fixedly connected to a mounting sleeve (3), the plurality of diverter plates (5) are commonly connected to a flow-gathering shaft (4), a welding chamber (23) is provided on the outer side of the bottom end of the flow-gathering shaft (4), and the bottom end of the die pad (1) is fixedly assembled with the cooling cavity (25) through the welding chamber (23).

3. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The temperature sensing component is composed of a heat conducting plate (6) and a heat conducting column (7), the bottom end of the heat conducting plate (6) is fixedly connected to the heat conducting column (7), a temperature sensor is arranged in the heat conducting column (7), the bottom end of the heat conducting column (7) is fixedly connected to the inner end surface of the receiving groove on the diverter plate (5) through a plurality of arc-shaped support plates (8), and the bottom end of the heat conducting column (7) is connected to the pressure sensor (9).

4. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The piston assembly consists of a U-shaped tube (12) and two piston columns (11). The two ends of the U-shaped tube (12) are slidably connected to the two piston columns (11). Hydraulic oil is provided in the U-shaped tube (12). The piston column (11) located at the top is fixedly connected to the adjustment plate (10), and the piston column (11) located at the bottom is fixedly connected to the enhanced triangular seat (13). The upper side wall of the enhanced triangular seat (13) is a slightly inclined surface.

5. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The buffer assembly consists of a buffer tube (17) and a buffer plate (21), the buffer tube (17) and the buffer plate (21) are slidably connected, the bottom end of the fixed triangular plate (14) is fixedly connected to the buffer seat (18), the bottom end of the die pad (1) is fixedly connected to a plurality of retaining seats (15) located at the diverter plate (5), the retaining seats (15) are fixedly connected to a buffer sleeve (16), and the two ends of the buffer sleeve (16) are respectively fixedly connected to the two buffer tubes (17).

6. The die pressing mechanism of the aluminum profile extruder according to claim 5, characterized in that: The inner side wall of the buffer sleeve (16) is slidably connected to the buffer seat (18), and the front and rear side walls of the buffer seat (18) are fixedly connected to a follower plate (19). The follower plate (19) is fixedly connected to the buffer plate (21) via a fixed rod. A buffer spring (20) is provided on the outer sleeve of the fixed rod. The inner side wall of the buffer tube (17) is fixedly connected to a baffle (22), and the buffer tube (17) is filled with hydraulic oil.

7. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The cooling chamber (25) is provided with a plurality of cooling grooves for fixing the cooling pipe (28), the outer ring and the inner ring of the constant pressure conversion chamber (26) are provided with a cold flow chamber and a hot flow chamber respectively, the two ends of the cooling pipe (28) are respectively connected to the cold flow chamber and the hot flow chamber, and the inner side wall of the bottom end of the constant pressure conversion chamber (26) is connected to an adaptable cooling plate (27) through the plurality of cooling pipes (28).

8. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The inner side wall of the inner end of the cooling pipe (28) is fixedly connected to a fixed orifice plate (29), the bottom end of the fixed orifice plate (29) is fixedly connected to a clamping valve ball (32) via a return spring (31), the bottom end of the fixed orifice plate (29) is fixedly connected to the top end of the pressure regulating bucket (30), and the diameter of the clamping valve ball (32) is larger than the inner diameter of the bottom end of the pressure regulating bucket (30).

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