High-strength aluminum profile extrusion die with pressure reduction structure

Abstract

This utility model discloses a high-strength aluminum profile extrusion die with a pressure-reducing structure, including an upper die connected to a forming component. The forming component includes a pressure-reducing component installed on the upper die for pressure reduction treatment of the aluminum profile. The pressure-reducing component includes a die core fixedly connected to the middle of the upper die. The upper die has an array of diversion holes near the edge of the die core. A buffer block for pressure reduction is fixedly connected to the upper edge of the die core. This utility model relates to the field of aluminum profile production technology. In the aluminum profile extrusion process, an external liquid nitrogen pump is started and liquid nitrogen is drawn from a liquid nitrogen storage tank through the extraction end. The liquid nitrogen is introduced into several U-shaped tubes through the inlet pipe and the first liquid ring. Then, the liquid nitrogen flows back to the external liquid nitrogen storage tank through the second liquid ring and the return pipe. When the liquid nitrogen passes through the U-shaped tubes, it absorbs heat from the upper die and the die body through heat exchange via the U-shaped tubes and the connecting rod.

Description

Technical Field

[0001] This utility model relates to the field of aluminum profile production technology, specifically a high-strength aluminum profile extrusion die with a pressure-reducing structure. Background Technology

[0002] In the production process of aluminum profiles, corresponding extrusion dies are required to promote the forming of aluminum profiles. Referring to the high-strength die for aluminum profiles authorized by patent announcement number CN222695656U, it includes: a die base and an inner die. The die base has a mating hole in the middle of one side. The die base has a conical groove B on the side near the mating hole inside. The die base has a conical groove A on the side near the conical groove B inside. This reduces the use cost of the extrusion die and thus improves the economic efficiency of the extrusion die. As described in the above patent, when using existing high-strength aluminum profile extrusion dies with pressure reduction structure, the aluminum profile with the corresponding temperature decreases in hardness due to long-term high temperature during the die extrusion process. Thermal fatigue is aggravated, causing cracks or fractures. In addition, the overheated die will cause defects such as cracks and bubbles on the surface of the aluminum profile. Moreover, traditional air cooling has poor cooling effect on the die and is difficult to effectively cool the inside of the die. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-strength aluminum profile extrusion die with a pressure-reducing structure, which solves the problem that the device cannot cool the inside of the die in a timely manner as needed, thus affecting the quality of the finished aluminum profile.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-strength aluminum profile extrusion die with a pressure-reducing structure, comprising an upper die, wherein the upper die is connected to a forming component for forming aluminum profiles, the forming component comprising:

[0005] A pressure-reducing component, installed on an upper mold for pressure reduction treatment of aluminum profiles, includes a mold core fixedly connected to the middle of the upper mold, an array of diversion holes near the edge of the mold core, a buffer block for pressure reduction fixedly connected to the upper edge of the mold core near the diversion holes, an array of positioning rods fixedly connected to the upper end of the upper mold, nuts threaded to the top of the positioning rods, and an array of first cooling grooves for cooling vertically provided on the edge of the upper mold;

[0006] The lower mold is connected to the upper mold to facilitate the forming of aluminum profiles. The lower mold includes a mold body that is snapped into the upper mold. A forming groove is provided vertically through the middle of the mold body corresponding to the mold core. A positioning hole that is slidably connected to the positioning rod is provided vertically through the upper mold body. A second cooling groove is provided vertically through the edge of the mold body corresponding to several first cooling grooves.

[0007] A cooling component is installed on the lower mold for mold cooling. The cooling component includes several connecting rods that are slidably connected to the first cooling groove and the second cooling groove, and the upper ends of the several connecting rods are fixedly connected to a mounting frame. The edge of the mounting frame has a series of screws that are threadedly connected to the mold body.

[0008] Preferably, the top of the positioning rod is threaded near the nut end, the bottom of the nut fits against the upper end of the mold body, there is a gap between the buffer block and the upper mold, and the forming groove is connected to the diversion hole.

[0009] Preferably, the pressure-reducing component further includes two sets of first positioning grooves respectively disposed on both sides of the upper mold, and the lower mold further includes two sets of second positioning grooves respectively disposed on both sides of the mold body and located at the upper end of the first positioning grooves.

[0010] Preferably, the mold body has an array of screw holes for auxiliary installation corresponding to the array of screws, and the connecting rod is made of copper alloy material.

[0011] Preferably, the cooling component further includes several U-shaped tubes that are fixedly connected inside several connecting rods. A first liquid-passing ring and a second liquid-passing ring are fixedly connected to the top two sides of the U-shaped tubes near the inner side of the mounting frame, respectively. An inlet pipe that is fixedly connected to the mounting frame is fixedly connected to the rear side of the first liquid-passing ring, and a return pipe that is fixedly connected to the mounting frame is fixedly connected to the front side of the second liquid-passing ring.

[0012] Preferably, both the inlet pipe and the return pipe are corrugated pipes, the inlet pipe is fixedly connected to a first flange at the end away from the mounting frame, and the return pipe is fixedly connected to a second flange at the end away from the mounting frame. Beneficial effects

[0013] This invention provides a high-strength aluminum profile extrusion die with a pressure-reducing structure. Compared with the prior art, it has the following advantages:

[0014] 1. This high-strength aluminum profile extrusion die with a pressure-reducing structure incorporates two sets of cooling grooves and cooling components within the device. Several connecting rods on the lower side of the mounting frame are inserted into several first and second cooling grooves. The mounting frame and its connecting components are fixed to the die body using a series of screws. The first flange at the end of the liquid inlet pipe is fixedly connected to the discharge end of an external liquid nitrogen pump, and the second flange at the end of the return pipe is fixedly connected to an external liquid nitrogen storage tank. During the aluminum profile extrusion process, the external liquid nitrogen pump is activated and draws liquid nitrogen from the liquid nitrogen storage tank through the extraction end. The liquid nitrogen is introduced into several U-shaped tubes through the liquid inlet pipe and the first liquid ring. Then, the liquid nitrogen flows back to the external liquid nitrogen storage tank through the second liquid ring and the return pipe. When the liquid nitrogen passes through the U-shaped tubes, it absorbs heat from the upper die and die body through heat exchange via the U-shaped tubes and connecting rods. This configuration uses circulating liquid nitrogen to cool the die during the extrusion process, achieving a higher cooling efficiency than air cooling and facilitating user disassembly and replacement, thus improving the adaptability of the cooling end.

[0015] 2. This high-strength aluminum profile extrusion die with a pressure-reducing structure uses positioning rods and nuts inside the device to slide the array of positioning holes on the die body to the array of positioning rods on the upper die. After the upper die and die body are engaged, nuts are threaded onto the positioning rods and the nuts press the die body against the upper die, thus fixing the upper die and die body together. Then, by engaging the upper die, the first positioning groove and the second positioning groove on the side of the die body with the feeding end, it plays a role in preventing detachment during the subsequent aluminum profile extrusion process and facilitates die replacement. Attached Figure Description

[0016] Figure 1 This is a sectional perspective view of the present invention;

[0017] Figure 2 This is an enlarged view of the upper mold and pressure-reducing component of this utility model;

[0018] Figure 3 This is an enlarged view of the lower mold of this utility model;

[0019] Figure 4 This is an enlarged cross-sectional view of the cooling component of this utility model;

[0020] Figure 5 This is a perspective view of the present invention.

[0021] In the diagram: 1. Upper mold; 2. Pressure reducing component; 21. Diverter hole; 22. Mold core; 23. Positioning rod; 24. Nut; 25. Buffer block; 26. First positioning groove; 27. First cooling groove; 3. Lower mold; 31. Mold body; 32. Forming groove; 33. Positioning hole; 34. Second cooling groove; 35. Second positioning groove; 4. Cooling component; 41. Mounting frame; 42. Screw; 43. Connecting rod; 44. Liquid inlet pipe; 45. First liquid passage ring; 46. U-shaped pipe; 47. Return pipe; 48. Second liquid passage ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] refer to Figure 1-5 This utility model provides the following two technical solutions:

[0024] First embodiment: A high-strength aluminum profile extrusion die with a pressure-reducing structure includes an upper die 1, and a forming component for forming aluminum profiles is connected to the upper die 1. The forming component includes a pressure-reducing component 2, which is installed on the upper die 1 for pressure reduction treatment of aluminum profiles. The pressure-reducing component 2 includes a die core 22 fixedly connected to the middle of the upper die 1. An array of diversion holes 21 is provided near the edge of the die core 22 on the upper die 1. A buffer block 25 for pressure reduction is fixedly connected to the upper edge of the die core 22 near the diversion holes 21. An array of positioning rods 23 is fixedly connected to the upper end of the upper die 1. Nuts 24 are threadedly connected to the top of the positioning rods 23. An array of first cooling grooves 27 for cooling is vertically provided on the edge of the upper die 1.

[0025] The lower mold 3 is connected to the upper mold 1 to facilitate the forming of aluminum profiles. The lower mold 3 includes a mold body 31 that is snapped into the upper mold 1. A forming groove 32 is vertically provided in the middle of the mold body 31 corresponding to the mold core 22. A positioning hole 33 is vertically provided on the upper part of the mold body 31 and is slidably connected to the positioning rod 23. A second cooling groove 34 is vertically provided on the edge of the mold body 31 corresponding to a plurality of first cooling grooves 27. The cooling component 4 is installed on the lower mold 3 for mold cooling treatment. The cooling component 4 includes a plurality of connecting rods 43 that are slidably connected to the first cooling grooves 27 and the second cooling grooves 34 respectively. The upper ends of the plurality of connecting rods 43 are fixedly connected to a mounting frame 41. A set of screws 42 that are threadedly connected to the mold body 31 are arranged on the edge of the mounting frame 41.

[0026] The mold body 31 has a set of screw holes for auxiliary installation corresponding to the set of screws 42. The connecting rod 43 is made of copper alloy. The cooling component 4 also includes a number of U-shaped tubes 46 that are fixedly connected to the inside of the connecting rods 43. A first liquid-passing ring 45 and a second liquid-passing ring 48 are fixedly connected to the top two sides of the U-shaped tube 46 near the inner side of the mounting frame 41, respectively. The rear side of the first liquid-passing ring 45 is fixedly connected to the liquid inlet pipe 44 that is fixedly connected to the mounting frame 41. The front side of the second liquid-passing ring 48 is fixedly connected to the liquid inlet pipe 44 that is fixedly connected to the mounting frame 41. The return pipe 47 is connected; the inlet pipe 44 and the return pipe 47 are both corrugated pipes. The end of the inlet pipe 44 away from the mounting frame 41 is fixedly connected to the first flange, which is fixedly connected to the discharge end of the external liquid nitrogen pump. The end of the return pipe 47 away from the mounting frame 41 is fixedly connected to the second flange, which is fixedly connected to the external liquid nitrogen storage tank. The liquid nitrogen pump is fixedly connected to the liquid extraction end with a liquid extraction pipe that is fixedly connected to and communicates with the external liquid nitrogen storage tank. The external liquid nitrogen storage tank is filled with liquid nitrogen and has heat dissipation fins fixedly connected to its outer surface.

[0027] Insert the connecting rods 43 on the lower side of the mounting frame 41 into the first cooling grooves 27 and the second cooling grooves 34 respectively. Fix the mounting frame 41 and its connecting components to the mold body 31 with the array screws 42. Adjust the position of the liquid inlet pipe 44 so that the first flange at the end of the liquid inlet pipe 44 is fixedly connected to the discharge end of the external liquid nitrogen pump, and the second flange at the end of the return pipe 47 is fixedly connected to the external liquid nitrogen storage tank. During the aluminum profile extrusion molding process, the external liquid nitrogen pump is started and liquid nitrogen is drawn from the liquid nitrogen storage tank through the liquid extraction end. The liquid nitrogen is introduced into the U-shaped pipes 46 through the liquid inlet pipe 44 and the first liquid ring 45. Then the liquid nitrogen flows back to the external liquid nitrogen storage tank through the second liquid ring 48 and the return pipe 47. When the liquid nitrogen passes through the U-shaped pipe 46, the liquid nitrogen absorbs heat to the upper mold 1 and the mold body 31 through heat exchange through the U-shaped pipe 46 and the connecting rods 43. During the production process, the mold temperature is monitored by an external infrared temperature sensor to regulate the liquid nitrogen circulation speed and achieve a constant temperature control effect.

[0028] The main difference between the second implementation method and the first implementation method is that:

[0029] The top of the positioning rod 23 is threaded near the end of the nut 24. The bottom of the nut 24 fits against the upper end of the mold body 31. There is a gap between the buffer block 25 and the upper mold 1. The forming groove 32 is connected to the diversion hole 21. The pressure reducing component 2 also includes two sets of first positioning grooves 26 respectively set on both sides of the upper mold 1. The lower mold 3 also includes two sets of second positioning grooves 35 respectively set on both sides of the mold body 31 and located above the first positioning grooves 26. The array of positioning holes 33 on the mold body 31 is slidably connected to the array of positioning rods 23 on the upper mold 1. After the upper mold 1 and the mold body 31 are snapped together, the nut 24 is threaded onto the positioning rod 23 and the nut 24 presses the mold body 31 against the upper mold 1, so that the upper mold 1 and the mold body 31 are fixed together. Then, the first positioning grooves 26 and the second positioning grooves 35 on the side of the upper mold 1 and the mold body 31 are snapped together at the feeding end.

[0030] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0031] In use, the user slides the array positioning holes 33 on the mold body 31 to the array positioning rods 23 on the upper mold 1. After the upper mold 1 and the mold body 31 are engaged, the user threads nuts 24 onto the positioning rods 23 and uses the nuts 24 to press the mold body 31 against the upper mold 1. The user moves the cooling component 4 to the side of the mold body 31, allowing the connecting rods 43 on the lower side of the mounting frame 41 to be inserted into the first cooling grooves 27 and the second cooling grooves 34 respectively. The user then fixes the mounting frame 41 and its connecting components onto the mold body 31 using array screws 42. The user then engages the entire mold at the feeding groove of the feeding end using the first positioning groove 26 on the edge of the upper mold 1 and the second positioning groove 35 on the edge of the lower mold 3. The user then transports the mold to the aluminum profile feeding end using an external conveyor. The user adjusts the position of the liquid inlet pipe 44 so that the first flange at the end of the liquid inlet pipe 44 is fixedly connected to the discharge end of the external liquid nitrogen pump. The second flange at the end of the flow pipe 47 is fixedly connected to the external liquid nitrogen storage tank. The heated aluminum profile is moved towards the upper mold 1 through the external feeding component. After the aluminum profile comes into contact with the upper mold 1, it passes through the diversion hole 21, the edge of the mold core 22, the buffer block 25, and the forming groove 32 in the mold body 31 to form the corresponding shape. During this process, the external liquid nitrogen pump is started and liquid nitrogen in the liquid nitrogen storage tank is drawn through the liquid extraction end. Then, the liquid nitrogen is introduced into several U-shaped tubes 46 through the liquid inlet pipe 44 and the first liquid ring 45. Then, the liquid nitrogen flows back to the external liquid nitrogen storage tank through the second liquid ring 48 and the return pipe 47. When the liquid nitrogen passes through the U-shaped tube 46, the liquid nitrogen absorbs heat to the upper mold 1 and the mold body 31 through heat exchange through the U-shaped tube 46 and the connecting rod 43. During the production process, the mold temperature is monitored by an external infrared temperature sensor to regulate the liquid nitrogen circulation speed and achieve a constant temperature control effect.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength aluminum profile extrusion die with a pressure-reducing structure, comprising an upper die (1), characterized in that: The upper mold (1) is connected to a forming component for forming aluminum profiles, the forming component comprising: A pressure-reducing component (2) is installed on the upper mold (1) for pressure reduction treatment of aluminum profiles. The pressure-reducing component (2) includes a mold core (22) fixedly connected to the middle of the upper mold (1). The upper mold (1) is provided with an array of diversion holes (21) near the edge of the mold core (22). A buffer block (25) for pressure reduction is fixedly connected to the upper edge of the mold core (22) near the diversion hole (21). An array of positioning rods (23) is fixedly connected to the upper end of the upper mold (1). A nut (24) is threaded to the top of the positioning rod (23). An array of first cooling grooves (27) for cooling is vertically provided on the edge of the upper mold (1). The lower mold (3) is connected to the upper mold (1) to facilitate the forming of aluminum profiles. The lower mold (3) includes a mold body (31) that is snapped into the upper mold (1). A forming groove (32) is provided vertically through the middle of the mold body (31) corresponding to the mold core (22). A positioning hole (33) that is slidably connected to the positioning rod (23) is provided vertically through the upper part of the mold body (31). A second cooling groove (34) is provided vertically through the edge of the mold body (31) corresponding to a plurality of first cooling grooves (27). Cooling component (4) is installed on the lower mold (3) for mold cooling treatment. The cooling component (4) includes several docking rods (43) that are slidably connected to the first cooling groove (27) and the second cooling groove (34) respectively. The upper ends of several docking rods (43) are fixedly connected to a mounting frame (41). The mounting frame (41) has a series of screws (42) that are threadedly connected to the mold body (31) on its edge.

2. The high-strength aluminum profile extrusion die with a pressure-reducing structure according to claim 1, characterized in that: The top of the positioning rod (23) is threaded near the end of the nut (24), the bottom of the nut (24) is in contact with the upper end of the mold body (31), there is a gap between the buffer block (25) and the upper mold (1), and the forming groove (32) is connected to the diversion hole (21).

3. The high-strength aluminum profile extrusion die with a pressure-reducing structure according to claim 1, characterized in that: The pressure-reducing component (2) also includes two sets of first positioning grooves (26) respectively disposed on both sides of the upper mold (1), and the lower mold (3) also includes two sets of second positioning grooves (35) respectively disposed on both sides of the mold body (31) and located at the upper end of the first positioning grooves (26).

4. The high-strength aluminum profile extrusion die with a pressure-reducing structure according to claim 1, characterized in that: The mold body (31) has a corresponding array of screws (42) with an array of screw holes for auxiliary installation, and the connecting rod (43) is made of copper alloy material.

5. A high-strength aluminum profile extrusion die with a pressure-reducing structure according to claim 1, characterized in that: The cooling component (4) also includes several U-shaped tubes (46) that are fixedly connected inside several docking rods (43). The top two sides of the U-shaped tubes (46) are respectively fixedly connected to the inner side of the mounting frame (41) with a first liquid-passing ring (45) and a second liquid-passing ring (48). The rear side of the first liquid-passing ring (45) is fixedly connected to an inlet pipe (44) that is fixedly connected to the mounting frame (41), and the front side of the second liquid-passing ring (48) is fixedly connected to a return pipe (47) that is fixedly connected to the mounting frame (41).

6. A high-strength aluminum profile extrusion die with a pressure-reducing structure according to claim 5, characterized in that: Both the inlet pipe (44) and the return pipe (47) are corrugated pipes. The inlet pipe (44) is fixedly connected to a first flange at the end away from the mounting frame (41), and the return pipe (47) is fixedly connected to a second flange at the end away from the mounting frame (41).

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