Die pressing mechanism of aluminum profile extruding machine

Abstract

The invention discloses a die pressing mechanism of an aluminum profile extruding machine, and belongs to the technical field of aluminum profile manufacturing, the die pressing mechanism comprises a die cushion and a die core, the inner side wall of the die cushion is fixedly connected with a plurality of splitter plates, each splitter plate is provided with two storage grooves, and the inner end face of each storage groove is connected with a temperature sensing assembly used for monitoring the temperature of an aluminum blank through a plurality of arc-shaped supporting plates. Through the arrangement of the temperature sensing assembly and the pressure sensor, the temperature distribution of all parts of the section in the extrusion process can be monitored in real time through the cooperation of the heat conducting plate and the temperature sensor, the pressure sensor is combined to detect the sudden change of extrusion force, and temperature and pressure two-dimensional abnormality diagnosis is achieved; the adjusting plate can be pressed to trigger hydraulic conduction of the U-shaped pipe and double energy absorption of the buffer spring, stress at the joint of the splitter plate and the die cushion is dispersed, outward pushing of the triangular seat is enhanced, the buffer seats on the two sides are synchronously driven to move, and hydraulic oil damping is formed through the spoiler 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 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 to be used will also be correspondingly larger. This requires that during the process of extrusion forming of the aluminum profile blanks using the die of an extruder, the blanks with larger cross-sectional dimensions require balanced temperatures in various parts to keep the aluminum blanks relatively soft, and avoid low temperatures in some areas that affect the forming of the aluminum profiles. At the same time, if blockage occurs in the die mechanism, it is easy to cause a sudden increase in pressure on the shunt part of the aluminum blank, thereby causing damage to 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 shunt area of ​​the die mechanism and the outside will be further increased, thereby causing a reduction in 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 an aluminum billet with a larger cross-sectional size, the extruder usually needs to apply a larger extrusion force, which will further increase the concentrated stress on the connecting parts between the diversion area of ​​the die mechanism and the outside, thereby reducing the service life. A die mechanism of an aluminum profile extruder is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The die pressing mechanism of the aluminum profile extruder comprises a die pad and a die core, wherein the inner side wall of the die pad is fixedly connected with a plurality of diverter plates, the diverter plate is provided with two receiving grooves, the inner end surface of the receiving groove is connected with a temperature sensing component for monitoring the temperature of the aluminum embryo through a plurality of arc-shaped support plates, a pressure sensor is arranged between the plurality of arc-shaped support plates, the inner side wall of the die pad is connected with a plurality of adjustment plates, the adjustment plates are connected with an enhanced triangular seat through a piston assembly, the bottom end of the enhanced triangular seat is fixedly connected with a fixed triangular plate, the bottom end of the fixed triangular plate is connected with a buffer seat, and the front and rear side walls of the buffer seat are both connected with a buffer assembly; The top of the mold core is connected to a working belt, the outer sides of the mold core and the working belt are provided with a cooling cavity, 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 clamping valve ball is provided at the bottom of the pressure regulating bucket.

[0006] Preferably, the outer side wall of the mold pad is fixedly connected with a mounting sleeve, the plurality of 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 mold pad is fixedly assembled with the cooling cavity through the welding chamber.

[0007] 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 arranged in the heat-conducting column, the bottom end of the heat-conducting column is fixedly connected to the inner end surface 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.

[0008] Preferably, the piston assembly consists of a U-shaped tube and two piston columns, the two ends of the U-shaped tube are respectively slidably connected to the two piston columns, hydraulic oil is arranged in the U-shaped tube, the piston column located at the top is fixedly connected to the adjustment plate, and the piston column located at the bottom is fixedly connected to the reinforced triangular seat, and the upper side wall of the reinforced triangular seat is a slightly inclined surface.

[0009] Preferably, the buffer assembly consists of a buffer tube and a buffer plate, the buffer tube and the buffer plate are slidably connected, the bottom end of the fixed triangular plate is fixedly connected to the buffer seat, the bottom end of the mold 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 both ends of the buffer sleeve are respectively fixedly connected to two buffer tubes.

[0010] 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 fixing rod, a buffer spring is disposed on the outer sleeve of the fixing rod, the inner side wall of the buffer tube is fixedly connected with a baffle, and the buffer tube is filled with hydraulic oil.

[0011] Preferably, a plurality of cooling grooves are provided in the cooling chamber for fixing the cooling pipe, 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, both ends of the cooling pipe are respectively connected to the cold flow chamber and the hot flow chamber, and the inner wall of the bottom end of the constant pressure conversion chamber is connected to an adaptable cooling plate through a plurality of cooling pipes.

[0012] Preferably, the inner wall of the inner end of the cooling tube is fixedly connected with a fixed orifice plate, the bottom end of the fixed orifice plate is fixedly connected to the clamping valve bead through a return spring, the bottom end of the fixed orifice plate is fixedly connected to the top end of the pressure regulating bucket, and the diameter of the clamping valve bead is larger than the inner diameter of the bottom end of the pressure regulating bucket.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 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. It combines the pressure sensor to detect sudden changes in extrusion pressure to achieve dual-dimensional abnormal diagnosis of temperature and pressure, making it easier to distinguish between uneven heating and extrusion blockage.

[0014] 2. Through the setting of buffer components and enhanced triangular seats, this scheme can utilize the pressure on the adjustment plate to trigger the U-tube hydraulic conduction and the double energy absorption of the buffer spring, 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. Dynamic pressure balance is achieved through the hydraulic oil damping formed by the baffle plate, thereby realizing hydraulic and mechanical composite buffering.

[0015] 3. This scheme can ensure the consistency of outlet pressure of each cooling pipe by setting up a constant pressure conversion chamber and a pressure regulating bucket, dynamically adjust the flow rate by clamping the valve bead, reduce the difference in cooling rate of aluminum profiles after extrusion, reduce deformation and warping, and solve the problem of micro cracks in thin-walled areas caused by too fast cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the die pressing mechanism of the aluminum profile extruder proposed by the present invention; Figure 2 It is an assembly diagram of the die mechanism of the aluminum profile extruder proposed by the present invention; Figure 3 This is a schematic structural diagram of a temperature sensing component in a die pressing mechanism of an aluminum profile extruder proposed by the present invention; Figure 4 This is a schematic structural diagram of the bottom of the die pad in the die pressing mechanism of the aluminum profile extruder proposed by the present invention; Figure 5 This is a schematic structural diagram of a piston assembly in a die-forming mechanism of an aluminum profile extruder proposed by the present invention; Figure 6 This is a schematic structural diagram of the connection between the buffer sleeve and the buffer tube in the die pressing mechanism of the aluminum profile extruder proposed by the present invention; Figure 7 This is a schematic structural diagram of a buffer assembly in a die pressing mechanism of an aluminum profile extruder proposed by the present invention; Figure 8 It 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; Fig. 9 The present invention is a partial cross-sectional view of the inner end of a cooling tube in the die mechanism of the aluminum profile extruder proposed by the present invention.

[0017] In the figure: 1. mold pad; 2. mold 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. enhanced 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 plate; 23. welding chamber; 24. working belt; 25. cooling chamber; 26. constant pressure conversion chamber; 27. adaptor cooling plate; 28. cooling tube; 29. ​​fixed orifice plate; 30. pressure regulating bucket; 31. reset spring; 32. pressing valve ball. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example, see Figures 1 to 9 The die pressing mechanism of the aluminum profile extruder includes a die pad 1 and a die core 2. The inner side wall of the die pad 1 is fixedly connected with 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 with a temperature sensing component for monitoring the temperature of the aluminum embryo through a plurality of arc-shaped support plates 8. A pressure sensor 9 is provided between the plurality of arc-shaped support plates 8. Further, the outer wall of the die pad 1 is fixedly connected with a mounting sleeve 3, a plurality of diverter plates 5 are commonly connected with a flow-gathering shaft 4, a welding chamber 23 is arranged outside the bottom end of the flow-gathering 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 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 with 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 with 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 with a pressure sensor 9; 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 and is used 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 will not be described in detail here. It should be noted that: when the aluminum billet after heating is placed at the hydraulic output end of the extruder, the aluminum billet will enter the axial position of the die pad 1 under the hydraulic pressure of the extruder. As the extruder continuously applies extrusion force, the aluminum billet in a 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 after heating and insulation is not balanced, or the extrusion state of each part is inconsistent, and the internal energy released is inconsistent, then it is necessary to stop the extrusion in time, judge the processing problem, and then carry out 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 the on-site staff to judge the fault situation in time and make processing adjustments quickly; The above advantages are as follows: in this way, the heat conducting plate 6 and the pressure sensor 9 can be used to monitor the temperature and pressure of each part of the aluminum billet cross section during the aluminum billet extrusion and diversion stage, so as to quickly and preliminarily determine the type of problem that occurs during the aluminum billet processing according to whether the parts with abnormal temperature and abnormal pressure are consistent; The inner wall of the die pad 1 is connected with a plurality of adjustment plates 10, the adjustment plates 10 are connected with a reinforced triangular seat 13 through a piston assembly, the bottom end of the reinforced triangular seat 13 is fixedly connected with a fixed triangular plate 14, the bottom end of the fixed triangular plate 14 is connected with a buffer seat 18, and the front and rear side walls of the buffer seat 18 are connected with buffer assemblies; 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, the U-shaped tube 12 is provided with hydraulic oil, the piston rod 11 located at the top is fixedly connected to the adjustment plate 10, the piston rod 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, 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 connected in a sliding manner, the bottom end of the fixed triangular plate 14 is fixedly connected to the buffer seat 18 Fixed connection, the bottom end of the die pad 1 is fixedly connected with a plurality of retaining seats 15 at the diverter plate 5, the retaining seat 15 is fixedly connected with a buffer sleeve 16, the two ends of the buffer sleeve 16 are respectively fixedly connected with two buffer tubes 17, the inner wall of the buffer sleeve 16 is slidably connected with the buffer seat 18, the front and rear side walls of the buffer seat 18 are fixedly connected with a follower plate 19, the follower plate 19 is fixedly connected with 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 with a baffle plate 22, and the buffer tube 17 is filled with hydraulic oil; It should be noted that when the aluminum blank is extruded in the die pad 1, the arc surfaces of the multiple adjustment plates 10 will be extruded, and the adjustment plates 10 will be pressed to drive the piston rod 11 above to press into the U-shaped tube 12, and 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, and the enhanced triangular seat 13 will press against the connection between the diverter plate 5 and the die pad 1 when it moves outward, and the fixed triangular plate 14 will be driven to move outward synchronously during the process of moving outward, so 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 follower plate 19 on the front side will compress the buffer spring 20 and push the buffer plate 21, and the follower plate 19 on the rear side will stretch the buffer spring 20 and pull 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 spoiler 22 will hinder the flow of the hydraulic oil, cooperating with the buffer spring 20 to perform buffering movement; The above advantages are as follows: the cooperation of the buffer spring 20 and the buffer plate 21 can be used to realize hydraulic buffer support for the enhanced triangular seat 13, enhance the support for the connection between the manifold plate 5 and the die pad 1, and avoid excessive concentrated stress at the connection between the manifold plate 5 and the die pad 1, which may cause damage to the die pressing mechanism; The top of the mold core 2 is connected to a working belt 24, and 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, and the constant pressure conversion chamber 26 is connected to a plurality of cooling pipes 28. A pressure regulating bucket 30 is provided in the cooling pipe 28, and a compression valve ball 32 is provided at the bottom of the pressure regulating bucket 30. 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 provided on the outer ring and the inner ring of the constant pressure conversion chamber 26 respectively, and both ends of the cooling pipe 28 are communicated with the cold flow chamber and the hot flow chamber respectively, and the inner wall of the bottom end of the constant pressure conversion chamber 26 is connected with an adaptor cooling plate 27 through a plurality of cooling pipes 28, and the inner wall of the inner end of the cooling pipe 28 is fixedly connected with a fixed orifice plate 29, and the bottom end of the fixed orifice plate 29 is fixedly connected with a clamping valve bead 32 through a return spring 31, and the bottom end of the fixed orifice plate 29 is fixedly connected with the top end of the pressure regulating bucket 30, and the diameter of the clamping valve bead 32 is larger than the inner diameter of the bottom end of the pressure regulating bucket 30; 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 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 chamber of the constant pressure conversion chamber 26, and then the external cold flow chamber is filled to maintain 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, so that the liquid in multiple cooling pipes 28 flows out synchronously, realizing synchronous cooling of the working belt 24 and the outside of the core 2. The cooling liquid in the cooling pipe 28 on one side of the adapter cooling plate 27 will enter the adapter cooling plate 27, and the outside of the aluminum profile extruded from the core 2 will be cooled in a targeted manner, so as to avoid the situation that when the aluminum profile is extruded on one side of the core 2, the other sides are difficult to cool evenly. The above advantages are as follows: in this way, the constant pressure conversion chamber 26 and the pressure regulating bucket 30 can be used to release the cooling liquid synchronously from the cooling pipe 28, and the flow rate of the cooling liquid in each part is guaranteed to be consistent under the same pressure state, so as to ensure the balanced and consistent cooling of the extruded parts of the aluminum profile, so as to achieve a better forming effect of the aluminum profile; When the present invention is used, the aluminum blank after heating is placed on the hydraulic output end of the extruder. Then, under the hydraulic pressure of the extruder, the aluminum blank will enter the axial position of the die pad 1. As the extruder continuously applies extrusion force, the aluminum blank in a high-temperature state will be pressed into aluminum fluid. In this process, the heat conduction plate 6 is in direct contact with the high-temperature aluminum blank, and the internal energy released by the aluminum blank from being pressed from solid to liquid will also be directly conducted to the heat conduction column 7 by the heat conduction plate 6. The temperature sensor in the heat conduction column 7 will measure the conducted temperature, and then monitor in real time whether the temperature of each part of the aluminum blank 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 blank after heating and insulation is uneven, or the extrusion of each part is too large. If the state is inconsistent and the released internal energy is inconsistent, it is necessary to stop extrusion in time, judge the processing problem, and then carry out 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 extrusion blockage has occurred 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 diversion, so as to quickly and preliminarily judge the type of problem occurring in the aluminum billet processing process according to whether the parts with abnormal temperature and abnormal pressure are consistent; When the aluminum blank is extruded in the die pad 1, the arc surfaces of the multiple adjustment plates 10 will be extruded, and the adjustment plate 10 will be pressed to drive the upper piston column 11 to be pressed into the U-shaped tube 12, and the hydraulic oil inside the U-shaped tube 12 will transmit the pressure to the lower piston column 11, and push 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. The enhanced triangular seat 13 will drive the fixed triangular plate 14 to move outward synchronously during the outward movement, and the fixed triangular plate 14 will drive the two buffer seats 18 at the bottom to move, and 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, and cooperate with the buffer spring 20 to perform buffering movement. In this way, the cooperation of the buffer spring 20 and the buffer plate 21 can be used to realize hydraulic buffering support for the enhanced triangular seat 13, and enhance the support for the connection between the diverter plate 5 and the die pad 1, so as to 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; After the aluminum billet is extruded into a liquid state, it flows along the flow-converging shaft 4 and flows into the welding chamber 23, and then transitions to the core 2 along the working belt 24 for the final extrusion molding. During this process, the external cooling liquid will flow into 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 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 generate a gap with the bottom end of the pressure regulating bucket 30, thereby making the liquid in multiple cooling pipes 28 The cooling liquid in the cooling pipe 28 on one side of the adapter cooling plate 27 will enter the adapter cooling plate 27 to cool the outside of the aluminum profile extruded from the mold core 2 in a targeted manner, thereby avoiding the situation where the other sides are difficult to cool evenly when the aluminum profile is extruded on one side of the mold core 2. In this way, the cooling liquid can be released synchronously from the cooling pipe 28 by utilizing the cooperation of the constant pressure conversion chamber 26 and the pressure regulating bucket 30, and 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, thereby achieving a better molding effect of the aluminum profile.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A die pressing mechanism of an aluminum profile extruder, comprising a die pad (1) and a die core (2), characterized in that: The die pad (1) has a plurality of flow divider plates (5) fixedly connected to the inner wall thereof, the flow divider plates (5) having two receiving grooves, the inner end surfaces of the receiving grooves being connected to a temperature sensing component for monitoring the temperature of the aluminum embryo via a plurality of arc-shaped support plates (8), a pressure sensor (9) being arranged between the plurality of arc-shaped support plates (8), the die pad (1) having a plurality of adjustment plates (10) connected to the inner wall thereof, the adjustment plates (10) being connected to an enhanced triangular seat (13) via a piston assembly, the bottom end of the enhanced triangular seat (13) being fixedly connected to a fixed triangular plate (14), the bottom end of the fixed triangular plate (14) being connected to a buffer seat (18), the front and rear side walls of the buffer seat (18) being connected to buffer assemblies; The top end of the mold core (2) is connected to a working belt (24), the outer sides of the mold core (2) and the working belt (24) are provided with a cooling cavity (25), 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 bucket (30) is provided in the cooling pipe (28), and a clamping valve ball (32) is provided at the bottom of the pressure regulating bucket (30).

2. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The outer wall of the mold pad (1) is fixedly connected to a mounting sleeve (3), the plurality of flow dividers (5) are commonly connected to a flow converging shaft (4), a welding chamber (23) is provided on the outer side of the bottom end of the flow converging shaft (4), and the bottom end of the mold pad (1) is fixedly assembled with the cooling chamber (25) via 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 a pressure sensor (9).

4. The die pressing mechanism of the aluminum profile extruder according to claim 1, characterized in that: The piston assembly is composed 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) respectively. Hydraulic oil is arranged 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 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 fixedly connected to the buffer seat (18), the bottom end of the mold pad (1) is fixedly connected to a plurality of retaining seats (15) 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); 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 fixing rod; a buffer spring (20) is disposed on the outer sleeve of the fixing rod; the inner side wall of the buffer tube (17) is fixedly connected to a baffle plate (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 tube (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 tube (28) are respectively connected to the cold flow chamber and the hot flow chamber; the inner side wall of the bottom end of the constant pressure conversion chamber (26) is connected to an adaptable cooling plate (27) via the plurality of cooling tubes (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 bead (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); the diameter of the clamping valve bead (32) is larger than the inner diameter of the bottom end of the pressure regulating bucket (30).

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