CN112077164A - Hollow aluminum profile extrusion die and processing method thereof - Google Patents

Abstract

The invention provides a hollow aluminum profile extrusion die and a processing method thereof, and relates to the technical field of aluminum profile production. The invention is convenient for adjusting the extending position of the inner membrane core block on the outer mold core block, can meet the manufacturing and production requirements of different aluminum profiles, improves the production applicability of the extrusion mold, and is beneficial to reducing the manufacturing and production cost of the aluminum profiles with different specifications.

Description

Hollow aluminum profile extrusion die and processing method thereof

Technical Field

The invention relates to the technical field of aluminum profile production, in particular to a hollow aluminum profile extrusion die and a processing method thereof.

Background

The aluminum profile is an aluminum bar which is hot-melted and extruded to obtain aluminum materials with different cross-sectional shapes. The production flow of aluminium alloy mainly includes founding, extrusion and the three process of coloring, wherein, colors and mainly includes: the technological process of coating titanium-gold on aluminium section includes the steps of pre-plating and electroplating on the basis of conventional titanium-plating process, and the pre-plating process includes chemical treatment of the activated plated part in water solution of salt and hydrochloric acid. The plating solution component of the electroplating process includes nickel sulfate, nickel chloride, boric acid, sodium dodecyl sulfate, saccharin and brightener, and said process has the advantages of simple process, practicality and good effect, and its film layer hardness HV is about 1500, and under the same condition it is more wear-resistant than 22K gold plating by 150 times, and can be made into various bright series aluminium profile products with various forms, such as gold, colour and black, etc. On a weight-equal basis, the electrical conductivity of aluminium is nearly twice that of copper, aluminium profiles are non-ferromagnetic, which is an important characteristic for the electrical and electronic industries, aluminium has very high recoverability, the characteristics of secondary aluminium are hardly different from those of primary aluminium, aluminium profiles are not self-combustible, which is important for applications involving handling or contacting flammable and explosive materials.

However, in the using process of the traditional aluminum profile extrusion die, the die core needs to be replaced when different specifications of aluminum profiles are produced, the production applicability of the extrusion die is low, the die is difficult to adapt to the manufacturing and production requirements of different aluminum profiles, and the manufacturing and production cost of the aluminum profiles with different specifications is increased.

Therefore, it is necessary to provide a hollow aluminum profile extrusion mold and a processing method thereof to solve the above technical problems.

Disclosure of Invention

The invention provides a hollow aluminum profile extrusion die and a processing method thereof, and solves the problem that the manufacturing and production cost of aluminum profiles with different specifications is increased because a die core needs to be replaced when aluminum profiles with different specifications are produced in the using process of a traditional aluminum profile extrusion die, the production applicability of the extrusion die is low, and the die is difficult to adapt to the manufacturing and production requirements of the aluminum profiles with different specifications.

In order to solve the technical problem, the hollow aluminum profile extrusion die provided by the invention comprises an upper die assembly, wherein the bottom side of the upper die assembly is provided with a lower die assembly, the inner side of the upper die assembly is provided with an outer die assembly, the inner side of the outer die assembly is provided with an inner die assembly, the upper die assembly comprises an upper die frame, the bottom end of the upper die frame is fixedly provided with a positioning block, the upper end of the upper die frame is fixedly provided with a positioning disc, the side surface of the upper die frame is fixedly provided with locking blocks, the surface of the positioning disc is provided with spacing holes at intervals, the bottom end of the inner side of the spacing hole is fixedly provided with a spacing magnetic block, the outer die assembly comprises an outer die core block, the outer die core block is fixedly arranged at the inner side of the upper die frame, the inner side of the outer mold core block is provided with a movable groove, the limiting sliding port is communicated with the movable groove, two transmission press blocks are symmetrically arranged in the movable groove, the side surface of each transmission press block is provided with a transmission inclined plane, the inner side surface of the movable groove is provided with a guide sliding groove, two ends of each transmission press block are fixedly arranged and are in sliding connection with the guide sliding grooves, the inner bottom end of the outer mold core block is fixedly provided with a limiting slide block bearing seat, the limiting slide block bearing seat is rotatably connected with a transmission screw rod, the transmission screw rod is in threaded connection with the transmission press blocks, the upper end of the transmission screw rod is fixedly provided with a rotating disc, the surface of the rotating disc is movably penetrated by a positioning rod, the bottom end surface of the positioning rod is fixedly provided with a positioning iron block, the inner mold core component comprises two inner mold core, the inner die assembly comprises a lower die frame, a first reinforcing block is fixedly mounted on the inner side of the lower die frame, an assembling groove is formed in the surface of the upper end of the lower die frame, and a first material rack is fixedly mounted at one end of the lower die frame.

Preferably, the limiting holes are distributed on the surface of the positioning disc in an annular mode, the cross sections of the positioning rod and the limiting holes are circular, and the size of the positioning rod is matched with that of the limiting holes.

Preferably, the side surface of the inner membrane core block is provided with a press-contact inclined surface, and the transmission inclined surface is in contact with the press-contact inclined surface.

Preferably, the transmission screw rod penetrates through the positioning disc and extends to the outer side, a positive thread is arranged on the front end surface of the transmission screw rod, a negative thread is arranged on the rear end surface of the transmission screw rod, and the thread of the positive thread is opposite to that of the negative thread.

Preferably, a first reinforcing groove is formed in the surface of the first reinforcing block, a second reinforcing groove is formed in the surface of the second reinforcing block, a first material frame is fixedly mounted at one end of the upper die frame, and a feeding frame is formed by the first material frame and the second material frame.

Preferably, the cross-sectional shapes of the positioning block and the assembling groove are both rectangular, and the size of the positioning block is matched with that of the assembling groove.

Preferably, the side face of the upper end of the lower die carrier is fixedly connected with an assembly block, and the locking block and the assembly block are in threaded connection with a locking screw rod.

Preferably, the other end fixed mounting of die carrier has the connecting seat down, the inboard rotation of connecting seat is connected with the axis of rotation, the one end fixed mounting of axis of rotation has the discharge roller, the surface position department interval of discharge roller is equipped with the vent.

Preferably, the bottom end side face of the lower die carrier is fixedly connected with an installation block, and an installation hole is formed in the surface of the installation block.

Preferably, the processing method of the hollow aluminum profile extrusion die comprises the following steps:

SS 001: cleaning dust and impurities on the surface of the aluminum bar material, then drying the surface of the aluminum bar material, and performing step-type heating treatment on the dried aluminum bar material, wherein the heating temperature of the first heating stage is kept at 535-540 ℃, the heating time is 0.5-1h, the heating temperature of the second heating stage is kept at 540-545 ℃, the heating time is 0.2-0.5h, the heating temperature of the third heating stage is kept at 545-550 ℃, and the heating time is 0.2-0.3 h;

SS 002: after the aluminum bar material is heated, the aluminum bar material is kept warm and kept stand, and the heat preservation time is 0.5-1 h;

and (4) SS 003: the positioning block is matched and inserted in the assembling groove, the locking screw is used for locking and fixing the assembling block through the locking block, and the upper die assembly, the outer die core assembly, the inner die core assembly and the lower die assembly are matched to form a die;

SS 004: according to the manufacturing and production requirements of aluminum profiles, when the extension length of an inner membrane core block on an outer mold core block needs to be adjusted, a rotating disc is used for rotating a transmission screw rod, so that the transmission screw rod rotates in the forward direction to drive two transmission press blocks to move close to each other, the transmission inclined planes of the transmission press blocks are in extrusion contact with the pressing contact inclined planes of the inner membrane core block, the inner membrane core block can extend outwards, a spring is in a compression state, the transmission screw rod rotates in the reverse direction to drive the two transmission press blocks to move away from each other, and the spring can be used for pulling;

SS 005: when the extension length of the inner membrane core block on the outer membrane core block is adjusted to be proper, the positioning rod is matched and inserted into the corresponding limiting hole, and the positioning iron block is in adsorption contact with the limiting magnetic block of the limiting hole;

SS 006: the aluminum bar material after heat preservation and standing is extruded by matching an extrusion device and a die, and the extruded aluminum profile is subjected to cold quenching treatment after material breaking treatment;

SS 007: and after the cold quenching treatment is finished, carrying out acid pickling treatment on the aluminum profile, after the acid pickling treatment is finished, washing the aluminum profile by using clean water, and after the washing is finished, carrying out air drying treatment on the aluminum profile to finish the processing.

Compared with the prior art, the hollow aluminum profile extrusion die and the processing method and the using method thereof provided by the invention have the following beneficial effects:

the invention provides a hollow aluminum profile extrusion die and a processing method thereof, wherein the die comprises the following steps:

1. according to the invention, the transmission screw is rotated by using the rotating disc, so that the forward rotation of the transmission screw can drive the two transmission pressing blocks to move close to each other, the transmission inclined planes of the transmission pressing blocks are in extrusion contact with the pressing contact inclined planes of the inner membrane core blocks, the inner membrane core blocks can extend outwards, at the moment, the spring is in a compression state, the reverse rotation of the transmission screw can drive the two transmission pressing blocks to move away from each other, the transmission inclined planes are always in contact with the pressing contact inclined planes by the spring, the inner membrane core blocks can be pulled to move inwards by the spring, the extending positions of the inner membrane core blocks on the outer mold core blocks can be conveniently adjusted, the manufacturing and production requirements of different aluminum profiles can be met, the production applicability of an extrusion;

2. the upper die frame and the lower die frame can be disassembled and assembled, when the extrusion die needs to be cleaned and maintained, the locking screw is loosened, the upper die frame and the lower die frame are disassembled and then cleaned and maintained, and the positioning blocks are matched and inserted in the assembling grooves, so that the upper die frame and the lower die frame are convenient to position and assemble, and the assembling structural strength of the upper die frame and the lower die frame is improved.

Drawings

FIG. 1 is a schematic structural view of a hollow aluminum profile extrusion die provided by the invention;

FIG. 2 is a schematic structural view of an upper die assembly;

FIG. 3 is a schematic structural diagram of a puck;

FIG. 4 is a schematic structural view of an outer mold core assembly;

FIG. 5 is a cross-sectional view of an outer mold core piece;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic structural view of an inner core assembly;

FIG. 8 is a schematic view of the lower die assembly;

reference numbers in the figures: 1. the die comprises an upper die assembly, 101, an upper die frame, 102, a positioning block, 103, a positioning disc, 1031, a limiting hole, 1032, a limiting magnetic block, 104, a locking block, 105, a first material frame, 2, an outer die core assembly, 201, an outer die core block, 202, a first reinforcing block, 203, a first reinforcing groove, 204, a limiting sliding opening, 205, a transmission screw rod, 206, a rotating disc, 207, a positioning rod, 208, a positioning iron block, 209, a guide sliding groove, 210, a transmission pressing block, 2101, a limiting sliding block, 2102, a transmission inclined plane, 211, a bearing seat, 212 and a movable groove; 3. inner die core subassembly, 301, inner membrance core board, 302, spring, 303, inner membrance pellet, 304, press and touch the inclined plane, 4, lower die assembly, 401, lower die carrier, 402, second boss, 403, second reinforcing groove, 404, second work or material rest, 405, assembly groove, 406, assembly block, 407, installation piece, 408, connecting seat, 409, axis of rotation, 410, ejection of compact roller, 411, vent, 5, feeding frame, 6, locking screw.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1-8 in combination, the hollow aluminum profile extrusion die comprises an upper die assembly 1, a lower die assembly 4 is arranged at the bottom side of the upper die assembly 1, an outer die core assembly 2 is arranged at the inner side of the upper die assembly 1, an inner die core assembly 3 is arranged at the inner side of the outer die core assembly 2, the upper die assembly 1 comprises an upper die frame 101, a positioning block 102 is fixedly arranged at the bottom end of the upper die frame 101, a positioning disc 103 is fixedly arranged at the upper end of the upper die frame 101, locking blocks 104 are fixedly arranged at the side surface of the upper die frame 101, limiting holes 1031 are formed in the surface of the positioning disc 103 at intervals, limiting magnetic blocks 1032 are fixedly arranged at the inner side bottom ends of the limiting holes 1031, the outer die core assembly 2 comprises an outer die core block 201, the outer die core block 201 is fixedly arranged at the inner side of the upper die frame 101, a limiting sliding port 204, the inner side of the outer die core block 201 is provided with a movable groove 212, and the limiting sliding port 204 is communicated with the movable groove 212.

Two transmission pressing blocks 210 are symmetrically arranged inside the movable groove 212, a transmission inclined plane 2102 is arranged on the side face of each transmission pressing block 210, a guide sliding groove 209 is arranged on the inner side surface of each movable groove 212, 2101 is fixedly arranged at each of two ends of each transmission pressing block 210, the 2101 is in sliding connection with the guide sliding groove 209, a limiting slider bearing seat 211 is fixedly arranged at the bottom end inside the outer die core block 201, the limiting slider bearing seat 211 is rotatably connected with a transmission screw 205, the transmission screw 205 is in threaded connection with the transmission pressing blocks 210, a rotating disc 206 is fixedly arranged at the upper end of the transmission screw 205, a positioning rod 207 penetrates through the surface of the rotating disc 206 in a movable manner, a positioning iron block 208 is fixedly arranged on the bottom end surface of the positioning rod 207, the inner die core assembly 3 comprises two inner die core plates 301 which are symmetrically arranged, and a spring 302 is fixedly, the inner die assembly comprises an inner die set 401, a second reinforcing block 402 is fixedly mounted on the inner side of the lower die set 401, an assembling groove 405 is formed in the upper end surface of the lower die set 401, and a second material rack 404 is fixedly mounted at one end of the lower die set 401.

Furthermore, spacing hole 1031 is annularly distributed on the surface of positioning disk 103, positioning rod 207 and spacing hole 1031 cross-sectional shape are circular, the size of positioning rod 207 and the size looks adaptation of spacing hole 1031 have reached and have made positioning rod 207 can cooperate the grafting in the purpose of spacing hole 1031.

Furthermore, a pressing and contacting inclined surface 304 is formed on the side surface of the inner film core block 303, and the transmission inclined surface 2102 is in contact with the pressing and contacting inclined surface 304, so that the purpose that the transmission pressing block 210 can drive the inner film core block 303 to move is achieved.

Further, the transmission screw 205 penetrates through the positioning disc 103 and extends to the outside, the front end surface of the transmission screw 205 is provided with a positive thread, the rear end surface of the transmission screw 205 is provided with a negative thread, and the thread textures of the positive thread and the negative thread are opposite, so that the purpose that the transmission screw 205 rotates in the forward and reverse directions to drive the two transmission pressing blocks 210 to be away from or close to each other is achieved.

Further, a first reinforcing groove 203 is formed in the surface of the first reinforcing block 202, a second reinforcing groove 403 is formed in the surface of the second reinforcing block 402, a first rack 105 is fixedly mounted at one end of the upper die carrier 101, and a feeding frame 5 is formed by the first rack 105 and the second rack 404.

Furthermore, the cross-sectional shapes of the positioning block 102 and the assembly groove 405 are both rectangular, and the size of the positioning block 102 is matched with the size of the assembly groove 405, so that the positioning block 102 is matched and inserted into the assembly groove 405.

Further, the side surface of the upper end of the lower mold frame 401 is fixedly connected with an assembling block 406, and the locking block 104 and the assembling block 406 are both in threaded connection with a locking screw 6.

Further, the other end fixed mounting of lower die carrier 401 has connecting seat 408, the inboard rotation of connecting seat 408 is connected with axis of rotation 409, the one end fixed mounting of axis of rotation 409 has discharge roller 410, the surface position department interval of discharge roller 410 is equipped with vent 411, has reached the purpose that reduces discharge roller 410 and aluminium alloy area of contact, is favorable to the aluminium alloy ventilation cooling.

Further, the bottom end side face of the lower die carrier 401 is fixedly connected with an installation block 407, and an installation hole is formed in the surface of the installation block 407.

Further, the processing method of the hollow aluminum profile extrusion die comprises the following steps:

SS 001: cleaning dust and impurities on the surface of the aluminum bar material, then drying the surface of the aluminum bar material, and performing step-type heating treatment on the dried aluminum bar material, wherein the heating temperature of the first heating stage is kept at 535-540 ℃, the heating time is 0.5-1h, the heating temperature of the second heating stage is kept at 540-545 ℃, the heating time is 0.2-0.5h, the heating temperature of the third heating stage is kept at 545-550 ℃, and the heating time is 0.2-0.3 h;

SS 002: after the aluminum bar material is heated, the aluminum bar material is kept warm and kept stand, and the heat preservation time is 0.5-1 h;

and (4) SS 003: the positioning block 102 is matched and inserted in the assembling groove 405, the locking screw 6 is used for locking and fixing the assembling block 406 through the locking block 104, and the upper die assembly 1, the outer die core assembly 2, the inner die core assembly 3 and the lower die assembly 4 are matched to form a die;

SS 004: according to the aluminum profile manufacturing production requirement, when the extending length of the inner membrane core block 303 on the outer membrane core block 201 needs to be adjusted, the rotating disc 206 is used for rotating the transmission screw 205, so that the transmission screw 205 rotates in the forward direction to drive the two transmission pressing blocks 210 to move close to each other, the transmission inclined plane 2102 of the transmission pressing block 210 is in pressing contact with the pressing contact inclined plane 304 of the inner membrane core block 303, the inner membrane core block 303 can extend outwards, the spring 302 is in a compression state, the transmission screw 205 rotates in the reverse direction to drive the two transmission pressing blocks 210 to move away from each other, and the spring 302 can be used for pulling the inner membrane core;

SS 005: when the extension length of the inner membrane core block 303 on the outer mold core block 201 is adjusted to be proper, the positioning rod 207 is matched and inserted into the corresponding limiting hole 1031, and the positioning iron block 208 is in adsorption contact with the limiting magnetic block 1032 of the limiting hole 1031;

SS 006: the aluminum bar material after heat preservation and standing is extruded by matching an extrusion device and a die, and the extruded aluminum profile is subjected to cold quenching treatment after material breaking treatment;

SS 007: and after the cold quenching treatment is finished, carrying out acid pickling treatment on the aluminum profile, after the acid pickling treatment is finished, washing the aluminum profile by using clean water, and after the washing is finished, carrying out air drying treatment on the aluminum profile to finish the processing.

Compared with the prior art, the hollow aluminum profile extrusion die and the processing method thereof provided by the invention have the following beneficial effects:

the transmission screw 205 is rotated by using the rotating disc 206, so that the transmission screw 205 rotates forward to drive the two transmission pressing blocks 210 to move close to each other, the transmission inclined plane 2102 of the transmission pressing blocks 210 is pressed and contacted with the pressing and contacting inclined plane 304 of the inner membrane core block 303, the inner membrane core block 303 can extend outwards, the spring 302 is in a compression state at the moment, the transmission screw 205 rotates reversely to drive the two transmission pressing blocks 210 to move away from each other, the transmission inclined plane 2102 is always contacted with the pressing and contacting inclined plane 304 by the spring 302, the inner membrane core block 303 can be pulled to move inwards by the spring 302, when the extension length of the inner membrane core block 303 on the outer membrane core block 201 is adjusted to be proper, the positioning rod 207 is matched and inserted in the corresponding limiting hole 1031, the positioning iron block 208 is adsorbed and contacted on the limiting hole 1031, the extension position of the inner membrane core block 303 on the outer membrane core block, the production applicability of the extrusion die is improved, when the extrusion die is required to be cleaned and maintained, the locking screw 6 is loosened, the upper die frame 101 and the lower die frame 401 are cleaned and maintained after being detached, and the positioning block 102 is matched and inserted into the assembling groove 405, so that the upper die frame 101 and the lower die frame 401 are convenient to position and assemble, and the assembling structural strength of the upper die frame 101 and the lower die frame 401 is improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The hollow aluminum profile extrusion die comprises an upper die assembly (1), wherein a lower die assembly (4) is arranged at the bottom side of the upper die assembly (1), an outer die core assembly (2) is arranged at the inner side of the upper die assembly (1), an inner die core assembly (3) is arranged at the inner side of the outer die core assembly (2), the hollow aluminum profile extrusion die is characterized in that the upper die assembly (1) comprises an upper die frame (101), a positioning block (102) is fixedly arranged at the bottom end of the upper die frame (101), a positioning disc (103) is fixedly arranged at the upper end of the upper die frame (101), a locking block (104) is fixedly arranged at the side face of the upper die frame (101), a limiting hole (1031) is formed in the surface interval of the positioning disc (103), a limiting magnetic block (1032) is fixedly arranged at the inner bottom end of the limiting hole (1031), the outer die core block (201) is fixedly arranged on the inner side of an upper die frame (101), a limiting sliding opening (204) is formed in the side face of the outer die core block (201), a first reinforcing block (202) is fixedly arranged on the surface of the bottom end of the outer die core block (201), a movable groove (212) is formed in the inner side of the outer die core block (201), the limiting sliding opening (204) is communicated with the movable groove (212), two transmission pressing blocks (210) are symmetrically arranged in the movable groove (212), a transmission inclined plane (2102) is formed in the side face of each transmission pressing block (210), a guide sliding groove (209) is formed in the surface of the inner side of each movable groove (212), two ends of each transmission pressing block (210) are fixedly arranged with a guide sliding groove (2101), the guide sliding grooves (2101) are connected with the guide sliding grooves (209) in a sliding mode, a limiting sliding block bearing, the limiting slide block bearing seat (211) is rotatably connected with a transmission screw (205), the transmission screw (205) is in threaded connection with a transmission press block (210), the upper end fixed mounting of the transmission screw (205) is provided with a rotating disc (206), the surface activity of the rotating disc (206) penetrates through a positioning rod (207), the bottom end fixed surface of the positioning rod (207) is provided with a positioning iron block (208), the inner die core assembly (3) comprises two inner die core plates (301) which are symmetrically arranged, two springs (302) are fixedly connected between the inner die core plates (301), the two ends of each inner die core plate (301) are fixedly provided with an inner die core block (303), the inner die core blocks (303) are in sliding connection with limiting sliding openings (204), the lower die assembly (4) comprises a lower die frame (401), and a second reinforcing block (402) is fixedly mounted on the inner side of the lower die frame (401), an assembly groove (405) is formed in the surface of the upper end of the lower die frame (401), and a second material frame (404) is fixedly mounted at one end of the lower die frame (401).

2. The hollow aluminum profile extrusion die of claim 1, wherein the limiting holes (1031) are annularly distributed on the surface of the positioning plate (103), the cross sections of the positioning rod (207) and the limiting holes (1031) are both circular, and the size of the positioning rod (207) is matched with the size of the limiting holes (1031).

3. The hollow aluminum profile extrusion die is characterized in that a press-contact inclined surface (304) is formed on the side surface of the inner membrane core block (303), and the transmission inclined surface (2102) is in contact with the press-contact inclined surface (304).

4. The hollow aluminum profile extrusion die according to claim 1, wherein the transmission screw (205) extends to the outside through the positioning plate (103), the front end surface of the transmission screw (205) is provided with a positive thread, the rear end surface of the transmission screw (205) is provided with a negative thread, and the threads of the positive thread and the negative thread are opposite.

5. The extrusion die for the hollow aluminum profile as claimed in claim 1, wherein a first reinforcing groove (203) is formed in the surface of the first reinforcing block (202), a second reinforcing groove (403) is formed in the surface of the second reinforcing block (402), a first rack (105) is fixedly installed at one end of the upper die frame (101), and a feeding frame (5) is formed by the first rack (105) and the second rack (404).

6. The hollow aluminum profile extrusion die as recited in claim 1, wherein the cross-sectional shapes of the positioning block (102) and the assembly groove (405) are both rectangular, and the size of the positioning block (102) is matched with the size of the assembly groove (405).

7. The hollow aluminum profile extrusion die as claimed in claim 1, wherein the upper end side of the lower die frame (401) is fixedly connected with an assembling block (406), and the locking block (104) and the assembling block (406) are both in threaded connection with a locking screw (6).

8. The hollow aluminum profile extrusion die according to claim 1, characterized in that a connecting seat (408) is fixedly installed at the other end of the lower die frame (401), a rotating shaft (409) is rotatably connected to the inner side of the connecting seat (408), a discharging roller (410) is fixedly installed at one end of the rotating shaft (409), and ventilation openings (411) are arranged at the surface position of the discharging roller (410) at intervals.

9. The hollow aluminum profile extrusion die of claim 1, wherein a mounting block (407) is fixedly connected to the bottom end side surface of the lower die frame (401), and a mounting hole is formed in the surface of the mounting block (407).

10. The processing method of the hollow aluminum profile extrusion die as claimed in any one of claims 1 to 9, characterized by comprising the following steps:

SS 001: cleaning dust and impurities on the surface of the aluminum bar material, then drying the surface of the aluminum bar material, and performing step-type heating treatment on the dried aluminum bar material, wherein the heating temperature of the first heating stage is kept at 535-540 ℃, the heating time is 0.5-1h, the heating temperature of the second heating stage is kept at 540-545 ℃, the heating time is 0.2-0.5h, the heating temperature of the third heating stage is kept at 545-550 ℃, and the heating time is 0.2-0.3 h;

SS 002: after the aluminum bar material is heated, the aluminum bar material is kept warm and kept stand, and the heat preservation time is 0.5-1 h;

and (4) SS 003: the positioning block (102) is matched and inserted in the assembling groove (405), a locking screw (6) is used for being locked and fixed with the assembling block (406) through a locking block (104), and the upper die assembly (1), the outer die core assembly (2), the inner die core assembly (3) and the lower die assembly (4) are matched to form a die;

SS 004: according to the aluminum profile manufacturing production requirement, when the extending length of the inner membrane core block (303) on the outer membrane core block (201) needs to be adjusted, the transmission screw (205) is rotated by using the rotating disc (206), so that the transmission screw (205) rotates in the forward direction to drive the two transmission pressing blocks (210) to move close to each other, the transmission inclined planes (2102) of the transmission pressing blocks (210) are in pressing contact with the pressing contact inclined planes (304) of the inner membrane core block (303) in a pressing contact manner, the inner membrane core block (303) can extend outwards, the spring (302) is in a compression state, the transmission screw (205) rotates in the reverse direction to drive the two transmission pressing blocks (210) to move away from each other, and the spring (302) can be used for pulling;

SS 005: when the extension length of the inner membrane core block (303) on the outer membrane core block (201) is adjusted to be proper, the positioning rod (207) is matched and inserted into the corresponding limiting hole (1031), and the positioning iron block (208) is in adsorption contact with a limiting magnetic block (1032) of the limiting hole (1031);

SS 006: the aluminum bar material after heat preservation and standing is extruded by matching an extrusion device and a die, and the extruded aluminum profile is subjected to cold quenching treatment after material breaking treatment;

SS 007: and after the cold quenching treatment is finished, carrying out acid pickling treatment on the aluminum profile, after the acid pickling treatment is finished, washing the aluminum profile by using clean water, and after the washing is finished, carrying out air drying treatment on the aluminum profile to finish the processing.

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