Aluminum type porous extrusion die with replaceable upper die

Abstract

The utility model discloses an aluminum type porous extrusion die with a replaceable upper die, which relates to the technical field of aluminum material extrusion dies, and particularly comprises a lower die and the upper die, at least three die cores are arranged in the middle of one side of the upper die, a plurality of shunting ports are arranged at the edge of one end of each die core close to the upper die, and the shunting ports are distributed along the upper die; a welding chamber is arranged in the middle of one side of the lower die, and a cavity corresponding to the die core in position is formed in the welding chamber; the lower die and the upper die are stacked together, the welding chamber is right opposite to the flow dividing opening, the die cores are all arranged in the cavities, and aluminum material flowing gaps are formed between the die cores and the cavities. When the aluminum profile extrusion die is used, a plurality of set aluminum profiles can be extruded at a time, so that the extrusion efficiency is improved; and the lower die and the upper die are locked through the locking bolt, so that position deviation between the upper die and the lower die under the action of extrusion force is avoided, the extrusion precision is ensured, the locking bolt is convenient to disassemble, and the upper die and the lower die are convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of aluminum extrusion die technology, specifically to a multi-hole aluminum extrusion die with a replaceable upper die. Background Technology

[0002] Aluminum extrusion dies are an important tool in the aluminum extrusion process, used to extrude aluminum profiles. An extrusion die is a specialized mold consisting of a die body and die accessories; its shape and size are designed and manufactured according to the cross-sectional dimensions and shape of the aluminum profile.

[0003] Existing aluminum extrusion dies mostly consist of a single die core and extrusion channel, meaning only one aluminum profile can be extruded during the extrusion process. Furthermore, the internal extrusion pressure is high after the upper and lower dies are closed, and any positional misalignment between the dies can affect extrusion accuracy. Moreover, the upper and lower dies are difficult to replace. Therefore, we propose a multi-hole aluminum extrusion die with a replaceable upper die. Utility Model Content

[0004] In view of the shortcomings of existing aluminum extrusion dies, which can only extrude one profile and are inconvenient to replace the upper and lower dies, this utility model provides an aluminum profile multi-hole extrusion die with a replaceable upper die, which has the advantages of multiple extrusion channels and easy replacement of upper and lower dies, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A multi-hole aluminum extrusion die with a replaceable upper die is designed, comprising a lower die and an upper die. At least three die cores are provided in the middle of one side of the upper die. Several flow outlets are provided at the edge of one end of the die cores near the upper die, distributed along the upper die. A welding chamber is provided in the middle of one side of the lower die, containing cavities corresponding to the die cores. The lower and upper dies are stacked together, with the welding chamber facing the flow outlets. Each die core is placed within its respective cavity, and a flow gap for aluminum material is provided between the die cores and the cavities. A positioning cavity is provided at the edge of the welding chamber. A positioning boss corresponding to the positioning cavity is provided on the side of the upper die near the die cores. The flow outlets penetrate the positioning boss, which is placed in the positioning cavity. At least one positioning block is provided on the surface of the positioning boss, and a positioning groove corresponding to the positioning block is provided on the surface of the positioning cavity, with the positioning block placed in the positioning groove.

[0006] Preferably, at least two locking holes are symmetrically provided on the positioning cavity and the positioning boss, and locking bolts are used to fasten the locking holes, with the ends of the locking bolts threaded to the nuts.

[0007] Preferably, the lower mold and the upper mold are provided with mounting grooves on the side that is far apart from each other and at the location of the locking bolts, and both ends of the locking bolts are placed in the mounting grooves.

[0008] Preferably, a feeding cavity is provided in the middle of the side of the upper mold away from the lower mold, and the flow outlet is located in the feeding cavity.

[0009] Compared with the prior art, this utility model has multiple mold cores and cavities, which allows the mold to extrude multiple aluminum profiles at once during operation, thus improving extrusion efficiency. In addition, the lower and upper molds are locked together by locking bolts to prevent positional displacement between the upper and lower molds under the action of extrusion force, ensuring extrusion accuracy. Furthermore, the locking bolts are easy to disassemble, making it convenient to replace the upper and lower molds. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of one side of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the other side of the structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the lower mold of this utility model.

[0013] Figure 4 This is a schematic diagram of the upper mold of this utility model.

[0014] Figure 5 This is a schematic diagram of the structure after the upper and lower molds of this utility model are connected.

[0015] In the diagram: 1. Lower mold; 2. Mounting groove; 3. Positioning cavity; 4. Locking hole; 5. Cavity; 6. Upper mold; 7. Feeding cavity; 8. Diverter port; 9. Positioning groove; 10. Positioning boss; 11. Positioning block; 12. Mold core; 13. Welding chamber; 14. Locking bolt. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 5 This utility model provides a technical solution: a replaceable upper die aluminum multi-hole extrusion die, including a lower die 1 and an upper die 6. At least three die cores 12 are provided in the middle of one side of the upper die 6. A plurality of flow outlets 8 are provided at one end edge of the die core 12 near the upper die 6. The flow outlets 8 are distributed along the upper die 6.

[0018] The lower mold 1 has a welding chamber 13 in the middle of one side. The main function of the welding chamber is to collect the metal flowing out of the diversion hole and re-weld it to form an integral blank with the mold core as the center. As the metal continues to accumulate, the static pressure continues to increase until it is extruded and formed. The welding chamber 13 has a cavity 5 in a position corresponding to the mold core 12.

[0019] The lower mold 1 and the upper mold 6 are stacked together, the welding chamber 13 is directly opposite the flow port 8, and the mold core 12 is placed in each cavity 5, and there is a flow gap of aluminum material between the mold core 12 and the cavity 5.

[0020] Specifically, in practical applications, the mold core and cavity 5 are matched. Their shapes can be regular shapes such as rectangles and triangles, or they can be designed as irregular structures. The shapes of the mold core and cavity 5 can be set according to the profile to be extruded.

[0021] The specific extrusion process is as follows: aluminum material enters from the side of the upper die 6 away from the lower die 1, and enters the welding chamber 13 through various flow outlets 8. Then, it flows through the welding chamber 13 to various cavities 5 and is extruded and formed under pressure. This product has multiple die cores and cavities 5, and can extrude at least three specified profiles at one time. The die cores and cavities 5 can be arranged in a ring, matrix, etc.

[0022] Furthermore, such as Figure 1 As shown, the edge of the welding chamber 13 is provided with a positioning cavity 3. The upper mold 6 is provided with a positioning boss 10 corresponding to the positioning cavity 3 on the side near the mold core 12. The flow port 8 passes through the positioning boss 10. The positioning boss 10 is placed in the positioning cavity 3. After the upper mold and the lower mold are closed, the positioning boss 10 is inserted into the positioning cavity 3 with a clearance fit, making the upper and lower molds more stable. Moreover, at least one positioning block 11 is provided on the surface of the positioning boss 10. The surface of the positioning cavity 3 is provided with a positioning groove 9 corresponding to the positioning block 11. The positioning block 11 is placed in the positioning groove 9. Through the cooperation of the positioning block 11 and the positioning groove, the upper mold and the lower mold will not rotate relative to each other after they are closed.

[0023] Furthermore, such as Figure 1 As shown, at least two locking holes 4 are symmetrically provided on the positioning cavity 3 and the positioning boss 10. The locking holes 4 are fastened by locking bolts 14, and the ends of the locking bolts 14 are threaded to the nuts. On the side of the lower die 1 and the upper die 6 that are far apart from each other and located at the locking bolts 14, there are mounting grooves 2. Both ends of the locking bolts 14 are placed in the mounting grooves 2. This allows the ends of the locking bolts to be placed in the mounting grooves and not exposed. At the same time, the locking bolts lock the upper and lower dies together, ensuring that the upper and lower dies can work stably after they are closed and will not slip unnecessarily under the action of external forces, thus ensuring the extrusion accuracy.

[0024] Based on the above embodiments, through some optimization, a feeding cavity 7 is provided in the middle of the side of the upper die 6 away from the lower die 1, and the diversion port 8 is located in the feeding cavity 7. The feeding cavity 7 is located on one side of the push rod of the extruder. When the aluminum material is pushed by the push rod, it can first be stuck in the feeding cavity 7, and then gradually extruded and formed under pressure. The feeding cavity 7 can play the role of positioning the aluminum material.

[0025] In actual use, this utility model allows the lower die 1 and the upper die 6 to close quickly through the cooperation of the positioning boss 10 and the positioning cavity 3, and through the cooperation of the positioning groove 9 and the positioning block 11. This facilitates the replacement of the upper die and the lower die. Furthermore, the lower die 1 and the upper die 6 are locked together by the locking bolt 14, which prevents the upper and lower dies from shifting under the action of extrusion force, ensuring extrusion accuracy. It also makes it easy to disassemble the locking bolt 14 and separate the upper and lower dies.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, 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.

[0027] 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 perforated aluminum extrusion die with a replaceable upper die, comprising a lower die (1) and an upper die (6), characterized in that, At least three mold cores (12) are provided in the middle of one side of the upper mold (6). Several flow outlets (8) are provided at the edge of one end of the mold core (12) near the upper mold (6). The flow outlets (8) are distributed along the upper mold (6). A welding chamber (13) is provided in the middle of one side of the lower mold (1), and a cavity (5) corresponding to the mold core (12) is provided in the welding chamber (13); The lower mold (1) and the upper mold (6) are stacked together, the welding chamber (13) is directly opposite the flow port (8), and the mold core (12) is placed in each cavity (5), and there is a flow gap for aluminum material between the mold core (12) and the cavity (5). The edge of the welding chamber (13) is provided with a positioning cavity (3), and the upper mold (6) is provided with a positioning boss (10) corresponding to the positioning cavity (3) on the side near the mold core (12). The flow port (8) passes through the positioning boss (10), and the positioning boss (10) is placed in the positioning cavity (3). The surface of the positioning boss (10) is provided with at least one positioning block (11), and the surface of the positioning cavity (3) is provided with a positioning groove (9) corresponding to the positioning block (11), and the positioning block (11) is placed in the positioning groove (9).

2. The aluminum profile multi-hole extrusion die with replaceable upper die according to claim 1, characterized in that, At least two locking holes (4) are symmetrically provided on the positioning cavity (3) and the positioning boss (10). The locking holes (4) are fastened by locking bolts (14), and the end of the locking bolts (14) is threaded to connect to a nut.

3. The aluminum profile multi-hole extrusion die with replaceable upper die according to claim 1, characterized in that, The lower mold (1) and the upper mold (6) are located on opposite sides of each other and at the location of the locking bolt (14), and both ends of the locking bolt (14) are placed in the mounting groove (2).

4. The aluminum profile multi-hole extrusion die with replaceable upper die according to claim 1, characterized in that, The upper mold (6) has a feeding cavity (7) in the middle of the side away from the lower mold (1), and the branch port (8) is located in the feeding cavity (7).

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