Small rice heavy aluminum profile extrusion die

Abstract

The utility model discloses a small-size rice heavy aluminum profile extrusion die which comprises a forming die and a positioning die, the forming die is arranged in the positioning die, the positioning die comprises a feeding end die and a discharging end die, a stepped groove is formed in the discharging end die, the stepped groove sequentially comprises a first sinking groove and a second sinking groove, and the first sinking groove and the second sinking groove are formed in the positioning die. The first sinking groove is located at the inner bottom of the second sinking groove, the forming mold is arranged in the first sinking groove, the first sinking groove is matched with the outer contour of the forming mold, and the feeding end mold is arranged in the second sinking groove. According to the extrusion die disclosed by the utility model, the extrusion die used on the existing small-sized extruder can be arranged on the positioning die suitable for the large-sized extruder, so that the extrusion die of the small-sized extruder can be used in the large-sized extruder, and the large-sized extruder is used for providing extrusion force meeting requirements; therefore, the extrusion die can be used for producing rice heavy materials, die opening is not needed again, and the die opening cost of a large-scale extrusion machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion dies, in particular to an extrusion die for small-sized heavy aluminum profiles. Background Art

[0002] Aluminum profiles are widely used in various industries such as construction, aerospace, rail vehicles, industrial machinery, etc. due to their light weight, corrosion resistance, easy processing, good ductility and many other characteristics. As people's requirements for aluminum profile products become higher and higher, the requirements for molds are also further improved.

[0003] Aluminum profile extrusion dies are usually used to process and produce aluminum profiles with thin wall thickness and small weight per meter, such as a radiator extrusion die disclosed in application number: CN202120745837.4. The radiator extrusion die of the utility model includes: an upper die and a lower die, the upper die is provided with a diversion hole, and the upper die is provided with a protruding mold core, the lower die is provided with a fusion cavity, and the lower die is provided with an extrusion hole at the fusion cavity, the extrusion hole is for the mold core to be inserted, and the extrusion hole cooperates with the mold core to form a mold cavity. The extruded product is a thin-walled profile, which can be processed using a small extruder.

[0004] Its disadvantage is that the millet heavy extrusion die as described above is suitable for small extruders, such as Figure 1 The cross-section of a thick-walled profile is shown. The profile has a relatively large weight per meter. If it is processed in an extruder that produces relatively small weights, it cannot provide sufficient extrusion pressure, and it is impossible to install and fix this profile in a large extruder.

[0005] In view of the above, it is necessary to propose a small-sized heavy aluminum profile extrusion die to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the above technical problems and to provide a small-sized heavy-weight aluminum profile extrusion die.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a small-sized heavy aluminum profile extrusion die, comprising a forming die and a positioning die, wherein the forming die is arranged in the positioning die, wherein the positioning die comprises a feed end die and a discharge end die, wherein the discharge end die is provided with a stepped groove, wherein the stepped groove comprises a first sink groove and a second sink groove in sequence, wherein the first sink groove is located at the inner bottom of the second sink groove, wherein the forming die is inserted into the first sink groove, wherein the first sink groove matches the outer contour of the forming die, wherein the feed end die is inserted into the second sink groove, wherein the feed end die and the discharge end die clamp the forming die and position it therein.

[0008] Furthermore, the molding die comprises an upper die and a lower die, the side of the upper die away from the clamping side is a feed surface, and the bottom inner portion of the lower die is provided with a first discharge hole.

[0009] Furthermore, a first-stage empty knife is formed in the first discharge hole, and the discharge end mold is provided with a second discharge hole at the inner bottom of the first trough, and the second discharge hole is larger than the first discharge hole and forms a second-stage empty knife.

[0010] Furthermore, a third sink groove is formed inside the feed end mold, and the upper mold is placed in the third sink groove.

[0011] Furthermore, the outer circumference of the forming mold is a rounded rectangle, the first sink groove and the third sink groove have the same shape, and are both provided with flat side walls and curved side walls, and the flat side walls and the curved side walls form a rounded rectangle that matches the outer circumference of the forming mold.

[0012] Furthermore, the discharge end mold is provided with a through hole, and the feed end mold is provided with a threaded hole. The feed end mold and the discharge end mold are fixed by a locking bolt, and the locking bolt is inserted through the through hole and screwed into the threaded hole.

[0013] Furthermore, a reducing step is formed at the feed surface end of the upper die, and the reducing step is in a circular ring shape. A positioning hole is provided on the inner bottom surface of the third sink, and the diameter of the positioning hole matches the reducing step, and the reducing step is inserted into the positioning hole.

[0014] Furthermore, the first upper end surface of the feed end mold, the second upper end surface of the discharge end mold and the feed surface are all located on the same plane.

[0015] Furthermore, the third upper end surface of the lower mold and the bottom surface of the second sink are located in the same plane.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a small-sized rice-weight aluminum profile extrusion die, which can install the extrusion die used on the existing small-sized extruder on the positioning die suitable for the large-sized extruder, so that the extrusion die of the small-sized extruder can be used in the large-sized extruder, and the large-sized extruder is used to provide the required extrusion force, so that it can be used to produce rice-weight profiles without the need to re-open the mold, which reduces the mold opening cost of the large-sized extruder, and the molding mold at the working part can be easily replaced when it is worn, thus avoiding the scrapping of the entire set of molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The cross-sectional view of the target rice heavy material to be processed;

[0018] Figure 2 This is an exploded view of a small-sized heavy aluminum profile extrusion die of the utility model;

[0019] Figure 3 This is a longitudinal section of a small-sized heavy aluminum profile extrusion die of the utility model. Figure 1 ;

[0020] Figure 4 This is a longitudinal section of a small-sized heavy aluminum profile extrusion die of the utility model. Figure 2 ;

[0021] In the figure: 1. forming mold; 2. positioning mold; 3. feed end mold; 4. discharge end mold; 5. stepped groove; 6. first sink groove; 7. second sink groove; 8. upper mold; 9. lower mold; 10. feed surface; 11. first discharge hole; 12. first empty knife; 13. second discharge hole; 14. second empty knife; 15. third sink groove; 16. through hole; 17. threaded hole; 18. locking bolt; 19. reducing step; 20. positioning hole; 21. plane side wall; 22. arc side wall; 23. first upper end face; 24. second upper end face; 25. third upper end face. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] like Figure 1 The figure shows the cross section of heavy rice material. The wall thickness of heavy rice material is relatively large. Figure 1 The cross-sectional shape of the profile shown is not limited, and can also be other cross-sectional shapes designed by customers according to their needs. In the existing extrusion mold, in order to make the original mold applicable to other larger extruders. The utility model is a small-sized rice-weight aluminum profile extrusion mold, specifically, as Figure 2-4 As shown, it includes a forming mold 1 and a positioning mold 2, wherein the forming mold 1 is arranged in the positioning mold 2. Figure 2 As shown, the positioning mold 2 includes a feed end mold 3 and a discharge end mold 4, and a stepped groove 5 is provided in the discharge end mold 4. The stepped groove 5 includes a first trough 6 and a second trough 7 in sequence. The first trough 6 is located at the inner bottom of the second trough 7. The first trough 6 is inserted into the forming mold 1, and the forming mold 1 is installed in the stepped groove 5 of the discharge end mold 4 in sequence, and then the feed end mold 3 is installed to form a combined mold. The outer structure of the positioning mold 2 is suitable for processing by a large extruder, so that the production of heavy rice materials can be realized.

[0024] Specifically, the molding die 1 includes an upper die 8 and a lower die 9, the upper die 8 has a feeding surface 10 on one side away from the mold closing side, and the lower die 9 has a first discharge hole 11 on the bottom. Figure 2 , 4As shown, the structure of the molding die 1 is roughly the same as that in the prior art, except that the extrusion die in the prior art is usually cylindrical, while the outer peripheral contour of the molding die 1 in the present tooling is a rounded rectangular shape, and a third sink 15 is formed inside the feed end mold 3, and the upper mold 8 is placed in the third sink 15. Similarly, the feed end mold 3 is placed inside the second sink 7, and the feed end mold 3 and the discharge end mold 4 clamp the molding die 1 in their interiors. And as shown in FIG. Figure 2 As shown, the first sink groove 6 and the third sink groove 15 have the same shape, and are both provided with a plane side wall 21 and a curved side wall 22, and the plane side wall 21 and the curved side wall 22 form a rounded rectangular shape that matches the outer peripheral shape of the forming mold 1. In this way, in actual use, the lower mold 9 can be installed in the first sink groove 6 of the discharge end mold 4, and the upper mold 8 can be installed in the third sink groove 15 of the feed end mold 3, and the outer wall shapes are consistent, so that the rotation of the forming mold 1 relative to the positioning mold 2 can be limited, and the stability of the positioning effect can be improved.

[0025] Further, when the upper mold 8 is installed with the feed end mold 3, specifically, as Figure 2 As shown, a diameter reduction step 19 is formed at the end of the feed surface 10 of the upper die 8, and the diameter reduction step 19 is annular. A positioning hole 20 is provided on the inner bottom surface of the third sink 15, and the diameter of the positioning hole 20 matches the diameter reduction step 19, and the diameter reduction step is inserted into the positioning hole 20. The third sink 15 can clamp the diameter reduction step 19 therein, which effectively prevents the internal molding die 1 from axial movement.

[0026] And in order to make the mold form a whole, specifically, Figure 4 As shown, the discharge end mold 4 is provided with a through hole 16, and the feed end mold 3 is provided with a threaded hole 17. The feed end mold 3 and the discharge end mold 4 are fixed by a locking bolt 18, and the locking bolt 18 is inserted through the through hole 16 and screwed into the threaded hole 17. After the mold is closed, the locking bolts 18 are fixed in sequence, so that the molding mold 1 and the positioning mold 2 can be formed into a whole, and relative movement will not occur in the subsequent production process, so that the quality of the product is stable.

[0027] Furthermore, a primary empty cutter 12 is formed in the first discharge hole 11, and the discharge end mold 4 is provided with a second discharge hole 13 at the inner bottom of the first sink 6, and the second discharge hole 13 is larger than the first discharge hole 11 and forms a secondary empty cutter 14. Figure 3 As shown, after the mold is closed, the discharge hole is formed into a first-level hollow knife 12 and a second-level hollow knife 14 which are successively expanded in a step-like manner. The design of the hollow knife can effectively ensure the surface quality of the extruded aluminum material and effectively control the size of the profile.

[0028] Further, such as Figure 3As shown, after the mold is closed, the first upper end surface 23 of the feed end mold 3 and the second upper end surface 24 of the discharge end mold 4 are located in the same plane as the feed surface 10. The third upper end surface 25 of the lower mold 9 and the bottom surface of the second sink 7 are located in the same plane.

[0029] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A small-sized heavy aluminum profile extrusion die, characterized in that: The invention comprises a forming mould (1) and a positioning mould (2), wherein the forming mould (1) is arranged in the positioning mould (2), and the positioning mould (2) comprises a feed end mould (3) and a discharge end mould (4), wherein the discharge end mould (4) is provided with a stepped groove (5), wherein the stepped groove (5) comprises a first sink groove (6) and a second sink groove (7) in sequence, wherein the first sink groove (6) is located at the inner bottom of the second sink groove (7), the forming mould (1) is inserted into the first sink groove (6), the first sink groove (6) matches the outer contour of the forming mould (1), the feeding end mould (3) is inserted into the second sink groove (7), and the feeding end mould (3) and the discharge end mould (4) clamp and position the forming mould (1) therein.

2. A small-sized heavy aluminum profile extrusion die according to claim 1, characterized in that: The molding die (1) comprises an upper die (8) and a lower die (9); a side of the upper die (8) away from the clamping side is a feed surface (10); and a first discharge hole (11) is provided at the inner bottom of the lower die (9).

3. A small-sized heavy aluminum profile extrusion die according to claim 2, characterized in that: A first-stage empty knife (12) is formed in the first discharge hole (11), and a second discharge hole (13) is provided at the inner bottom of the first sink (6) of the discharge end mold (4), the second discharge hole (13) is larger than the first discharge hole (11) and forms a second-stage empty knife (14).

4. A small-sized heavy aluminum profile extrusion die according to claim 2, characterized in that: A third sink (15) is formed inside the feed end mold (3), and the upper mold (8) is placed in the third sink (15).

5. A small-sized heavy aluminum profile extrusion die according to claim 4, characterized in that: The outer periphery of the forming mold (1) is in the shape of a rounded rectangle. The first sink groove (6) and the third sink groove (15) are of the same shape and are both provided with a plane side wall (21) and a curved side wall (22). The plane side wall (21) and the curved side wall (22) form a rounded rectangle that matches the outer periphery of the forming mold (1).

6. The small-sized heavy aluminum profile extrusion die according to claim 1, characterized in that: The discharge end mold (4) is provided with a through hole (16), and the feed end mold (3) is provided with a threaded hole (17). The feed end mold (3) and the discharge end mold (4) are fixed by means of a locking bolt (18). The locking bolt (18) is inserted through the through hole (16) and is screwed into the threaded hole (17).

7. The small-sized heavy aluminum profile extrusion die according to claim 4, characterized in that: A diameter-reducing step (19) is formed at the end of the feed surface (10) of the upper die (8), and the diameter-reducing step (19) is in a circular ring shape. A positioning hole (20) is provided on the inner bottom surface of the third sink groove (15), and the diameter of the positioning hole (20) matches the diameter-reducing step (19), and the diameter-reducing step is inserted into the positioning hole (20).

8. The small-sized heavy aluminum profile extrusion die according to claim 7, characterized in that: The first upper end surface (23) of the feed end mold (3), the second upper end surface (24) of the discharge end mold (4), and the feed surface (10) are all located on the same plane.

9. The small-sized heavy aluminum profile extrusion die according to claim 7, characterized in that: The third upper end surface (25) of the lower mold (9) and the bottom surface of the second sink groove (7) are located in the same plane.

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