Aluminum profile hot extrusion split-flow combined die structure

Abstract

The utility model discloses an aluminum profile hot extrusion shunting combined die structure which comprises a lower die and an upper die, the lower die is provided with shunting holes, shunting bridges and a die core, the upper die is provided with a welding chamber and a die hole cavity, a sealing ring is arranged between the lower die and the upper die, and a buckle structure is arranged between the lower die and the upper die. Under the action of the buckle structure, the lower die and the upper die clamp the sealing ring, and relates to the technical field of aluminum profile machining dies, the sealing ring is arranged between the lower die and the upper die, the buckle structure is arranged between the lower die and the upper die, and die assembly between the upper die and the lower die can be achieved through the buckle structure. And after mold closing, the sealing ring is in a compressed state to achieve sealing between the upper mold and the lower mold, and compared with mold closing between the upper mold and the lower mold through bolts, the mold closing efficiency and the mold opening efficiency can be greatly improved through the buckle structure.

Description

Technical Field

[0001] This utility model relates to the field of aluminum profile processing mold technology, specifically to a hot extrusion diversion combination mold structure for aluminum profiles. Background Technology

[0002] The hot extrusion die for aluminum profiles is widely used on extrusion presses without independent piercing systems to produce tubes, hollow or semi-hollow aluminum profiles of various specifications and shapes. It typically consists of four parts: an upper die, a lower die, locating pins, and connecting screws.

[0003] Chinese patent application CN102069100A discloses a hot extrusion die structure for aluminum profiles, comprising an upper die and a lower die, which are fixed together by screws. Corresponding mounting holes are machined on both the upper and lower dies. Locating pins, cylindrical in shape, are installed in these mounting holes. Screws pass through the cylindrical locating pins to secure the upper and lower dies together. The mounting holes on the lower die are through holes, while those on the upper die are blind holes. There are two sets of mounting holes on the upper and lower dies, symmetrically distributed around the die axis. The cylindrical locating pin structure combines the locating pins and screws, avoiding the problem of redundant locating pin and screw holes, reducing the number of openings on the die, increasing the die's strength, and lowering the production cost of the aluminum profiles.

[0004] The above-mentioned patent has the following shortcomings: the upper and lower molds of the diversion combination mold are fixedly installed by positioning pins and screws, which makes it very inconvenient to assemble and disassemble the upper and lower molds. Utility Model Content

[0005] In view of the problems existing in the current aluminum profile hot extrusion diversion combination mold structure, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a hot extrusion diversion combination mold structure for aluminum profiles, which solves the problem that the upper and lower molds of the diversion combination mold in the above-mentioned patent are fixedly installed by positioning pins and screws, making it very inconvenient to assemble and disassemble the upper and lower molds.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A hot extrusion diversion die structure for aluminum profiles includes a lower die and an upper die. The lower die is provided with a diversion hole, a diversion bridge, and a die core. The upper die is provided with a welding chamber and a die cavity. A sealing ring is provided between the lower die and the upper die, and a snap-fit ​​structure is provided between the lower die and the upper die. Under the action of the snap-fit ​​structure, the lower die and the upper die clamp the sealing ring.

[0009] As a preferred embodiment of the aluminum profile hot extrusion diversion combination mold structure described in this utility model, the diversion hole is a channel for metal to reach the lower mold hole, the diversion bridge is a support for the mold core, and the mold core is used to form the shape and size of the profile's inner cavity.

[0010] As a preferred embodiment of the aluminum profile hot extrusion diversion combination mold structure described in this utility model, wherein: the welding chamber gathers the metal flowing out of the diversion hole together and re-welds it to form an integral material with the mold core as the center.

[0011] As a preferred embodiment of the aluminum profile hot extrusion diversion combination mold structure described in this utility model, the lower mold is provided with a positioning groove, and the bottom of the upper mold is welded or integrally formed with a positioning pin, wherein the diameter of the positioning groove is equal to the diameter of the positioning pin.

[0012] As a preferred embodiment of the aluminum profile hot extrusion diversion combination mold structure described in this utility model, the snap-fit ​​structure includes a first support block welded to the outer wall of the upper mold and a second support block welded to the outer wall of the lower mold.

[0013] A traction rod is rotatably connected to the first support block. A support pin is welded to the outer wall of the traction rod, and a plug pin is welded to the support pin. A plug groove is opened at the bottom of the second support block, and the plug pin is inserted into the plug groove.

[0014] In a preferred embodiment of the aluminum profile hot extrusion diversion combination mold structure of this utility model, a hinge block is welded on the outer wall of the first support block, and the hinge block is pivotally hinged to the top of the traction rod.

[0015] As a preferred embodiment of the aluminum profile hot extrusion diversion combination mold structure described in this utility model, the snap-fit ​​structure includes a first support block welded to the outer wall of the upper mold and a second support block welded to the outer wall of the lower mold.

[0016] A traction rod is rotatably connected to the first support block, and a support pin is welded to the outer wall of the traction rod. The end of the support pin is rotatably connected to a roller via a pivot. An arc-shaped groove is opened at the bottom of the second support block, and the top of the roller is inserted into the arc-shaped groove.

[0017] Compared with existing technologies:

[0018] By setting a sealing ring between the lower mold and the upper mold, and setting a snap-fit ​​structure between the lower mold and the upper mold, the upper mold and the lower mold can be closed through the snap-fit ​​structure. After the mold is closed, the sealing ring is in a compressed state to achieve a seal between the upper mold and the lower mold. Compared with the mold closing between the upper mold and the lower mold by bolts, the snap-fit ​​structure can greatly improve the efficiency of mold closing and opening. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the lower mold provided in Embodiment 1 of this utility model;

[0020] Figure 2 A schematic diagram of the lower mold and upper mold provided in Embodiment 1 of this utility model;

[0021] Figure 3 Provided for Embodiment 1 of this utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the upper mold provided in Embodiment 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the lower mold and upper mold provided in Embodiment 2 of this utility model;

[0024] Figure 6 Provided for Embodiment 2 of this utility model Figure 5 Enlarged view of section B in the middle.

[0025] In the diagram: 1. Lower mold; 2. Upper mold; 3. Diverter hole; 4. Diverter bridge; 5. Mold core; 6. First support block; 7. Second support block; 8. Welding chamber; 9. Mold cavity; 10. Traction rod; 11. Support pin; 12. Insertion pin; 13. Hinge block; 14. Pivot; 15. Insertion groove; 16. Roller; 17. Arc groove; 18. Positioning pin; 19. Positioning groove; 20. Sealing ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] This utility model provides a hot extrusion diversion combination mold structure for aluminum profiles. Please refer to [link / reference]. Figure 1-4The mold includes a lower mold 1 and an upper mold 2. The lower mold 1 has a positioning groove 19. The bottom of the upper mold 2 is welded or integrally formed with a positioning pin 18. The diameter of the positioning groove 19 is equal to the diameter of the positioning pin 18. The positioning pin 18 is inserted into the positioning groove 19 to achieve precise positioning between the lower mold 1 and the upper mold 2, ensuring accurate mold closing. The lower mold 1 is provided with a flow-diverting hole 3, a flow-diverting bridge 4, and a mold core 5. The flow-diverting hole 3 is a channel for metal to reach the lower mold hole, the flow-diverting bridge 4 is a support for the mold core 5, and the mold core 5 is used to form the shape and size of the profile's inner cavity. The upper mold... The die 2 has a welding chamber 8 and a die cavity 9. The welding chamber 8 collects the metal flowing out of the diversion hole and re-welds it together to form a whole material centered on the die core 5. As the metal continues to accumulate, the static pressure continues to increase until the metal is squeezed out of the die cavity 9. A sealing ring 20 is provided between the lower die 1 and the upper die 2, and a snap-fit ​​structure is provided between the lower die 1 and the upper die 2. Under the action of the snap-fit ​​structure, the lower die 1 and the upper die 2 clamp the sealing ring 20, and the sealing ring 20 is in a compressed state, thereby ensuring an effective seal between the lower die 1 and the upper die 2.

[0029] The snap-fit ​​structure includes a first support block 6 welded to the outer wall of the upper mold 2 and a second support block 7 welded to the outer wall of the lower mold 1. A traction rod 10 is rotatably connected to the first support block 6. Specifically, a hinge block 13 is welded to the outer wall of the first support block 6. The hinge block 13 is hinged to the top of the traction rod 10 via a pivot 14. A support pin 11 is welded to the outer wall of the traction rod 10. A plug pin 12 is welded to the support pin 11. A plug groove 15 is provided at the bottom of the second support block 7. The plug pin 12 is inserted into the plug groove 15.

[0030] In practical use, the upper mold 2 is placed on the lower mold 1, and the positioning pin 18 is inserted into the positioning groove 19; after pressing the upper mold 2 down, the insertion pin 12 is inserted into the insertion groove 15, thereby realizing the mold closing between the lower mold 1 and the upper mold 2, and the sealing ring 20 is in a compressed state.

[0031] Example 2:

[0032] See attached document Figure 5-6 Unlike Embodiment 1, the snap-fit ​​structure includes a first support block 6 welded to the outer wall of the upper mold 2 and a second support block 7 welded to the outer wall of the lower mold 1.

[0033] A traction rod 10 is rotatably connected to the first support block 6. A support pin 11 is welded to the outer wall of the traction rod 10. A roller 16 is rotatably connected to the end of the support pin 11 via a pivot. An arc-shaped groove 17 is opened at the bottom of the second support block 7. The top of the roller 16 is inserted into the arc-shaped groove 17. When the traction rod 10 is rotated, the roller 16 will roll between itself and the second support block 7, so that the roller 16 can easily enter the arc-shaped groove 17.

[0034] In practical use, the upper mold 2 is placed on the lower mold 1, and the positioning pin 18 is inserted into the positioning groove 19; after the upper mold 2 is pressed down, the roller 16 is inserted into the arc groove 17, thereby realizing the mold closing between the lower mold 1 and the upper mold 2, and the sealing ring 20 is in a compressed state.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hot extrusion die structure for aluminum profiles, comprising a lower die (1) and an upper die (2), wherein the lower die (1) is provided with a flow divider hole (3), a flow divider bridge (4), and a die core (5), and the upper die (2) is provided with a welding chamber (8) and a die cavity (9), characterized in that: A sealing ring (20) is provided between the lower mold (1) and the upper mold (2), and a snap-fit ​​structure is provided between the lower mold (1) and the upper mold (2); under the action of the snap-fit ​​structure, the lower mold (1) and the upper mold (2) clamp the sealing ring (20).

2. The hot extrusion split composite die structure for aluminum profile as claimed in claim 1, wherein, The diversion hole (3) is a channel for metal to pass through to the lower mold hole, and the diversion bridge (4) is a support for the mold core (5). The mold core (5) is used to form the shape and size of the profile cavity.

3. The hot extrusion split composite die structure of aluminum profile according to claim 1, characterized in that, The welding chamber (8) gathers the metal flowing out of the diversion hole together and re-welds it to form a whole material centered on the mold core (5).

4. The aluminum profile hot extrusion diversion combination mold structure according to claim 2, characterized in that, The lower mold (1) is provided with a positioning groove (19), and the bottom of the upper mold (2) is welded or integrally formed with a positioning pin (18). The diameter of the positioning groove (19) is equal to the diameter of the positioning pin (18).

5. The hot extrusion split composite die structure of aluminium profile as claimed in claim 4, wherein, The snap-fit ​​structure includes a first support block (6) welded to the outer wall of the upper mold (2) and a second support block (7) welded to the outer wall of the lower mold (1); A traction rod (10) is rotatably connected to the first support block (6). A support pin (11) is welded to the outer wall of the traction rod (10). A plug pin (12) is welded to the support pin (11). A plug groove (15) is opened at the bottom of the second support block (7). The plug pin (12) is inserted into the plug groove (15).

6. The hot extrusion split composite die structure of aluminium profile as claimed in claim 5, wherein, A hinge block (13) is welded to the outer wall of the first support block (6), and the hinge block (13) is hinged to the top of the traction rod (10) via a pivot (14).

7. The hot extrusion split composite die structure of aluminium profile as claimed in claim 4, wherein, The snap-fit ​​structure includes a first support block (6) welded to the outer wall of the upper mold (2) and a second support block (7) welded to the outer wall of the lower mold (1); A traction rod (10) is rotatably connected to the first support block (6). A support pin (11) is welded to the outer wall of the traction rod (10). A roller (16) is rotatably connected to the end of the support pin (11) via a pivot. An arc groove (17) is provided at the bottom of the second support block (7). The top of the roller (16) is inserted into the arc groove (17).

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