Aluminum extrusion die for single-bridge cantilever

Abstract

The utility model discloses an aluminum extrusion die of a single-bridge cantilever, and belongs to the technical field of aluminum extrusion dies. The die comprises a die body, and the die body comprises an upper die and a lower die. The upper die comprises a feeding hole, a shunting bridge and a die core; the lower die comprises a cavity, a runner and a cantilever. According to the aluminum extrusion die for the single-bridge cantilever, through the design of quincunx-bridge-shaped four-fan-shaped holes, drilling and tapping are carried out on a die core of the upper die, and a long bolt is directly led to the upper die to be fastened and locked at the position corresponding to the cantilever of the lower die. During extrusion, the upper die and the lower die form a whole through the screw to protect the cantilever of the lower die, so that the mode is more convenient in processing on the basis of the original suspension bridge process, more convenient in field use, higher in polishing and die soaking efficiency and lower in alkali cost, and the cantilever supporting force of the upper die and the lower die is higher on the basis of the original quincunx bridge four-hole design scheme; and the collapse amount of the cantilever is reduced, and the risk of scrap of the punching die is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aluminium extrusion die, especially a single bridge cantilever's aluminium extrusion die. BACKGROUND

[0002] With the development of modern industry, aluminium extrusion forming technology has been widely used in the fields of aerospace, automobile manufacturing, building, etc., and aluminium alloy has become the preferred material in many application scenarios due to its light weight, high strength, good corrosion resistance and excellent processing performance. The design and manufacture of aluminium extrusion die, which is a crucial tool in the aluminium alloy forming process, directly affect the forming quality and production efficiency of aluminium materials.

[0003] Cantilever is a common structure form of aluminium alloy die, which is usually used for carrying and supporting load. It refers to a part of the die extending from the main support structure to form a "suspended" state. The existing cantilever installation method is generally divided into two types.

[0004] One is the suspension bridge process used in CN101081411A. The suspension bridge in this method needs to be processed separately and needs to be inlaid and installed, which leads to complex processing of the suspension bridge and makes it very inconvenient to install accurately in the extrusion site. In addition, the polishing of the suspension bridge is difficult and the cost of alkali soaking is high.

[0005] The other is the shunt bridge (like plum blossom, also known as plum blossom bridge) process used in CN220426343U. The shunt bridge is shielded by a false mold core. However, when the thickness of the lower die is insufficient, the elastic deformation is large, which may cause the lower die to collapse and even damage the mold.

[0006] Therefore, in view of the above problems, it is urgent to design an aluminium extrusion die that can solve the drawbacks of the above two schemes. For this reason, we propose a single bridge cantilever aluminium extrusion die. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims to provide a single bridge cantilever aluminium extrusion die, which uses a cantilever to replace the existing suspension bridge process when the thickness of the lower die is insufficient, to solve the problems of inconvenience, difficulty in polishing and high cost of alkali soaking.

[0008] To solve the above technical problems, the utility model provides a single bridge cantilever aluminium extrusion die, which includes a die body, the die body includes an upper die, and a lower die arranged on one side of the upper die;

[0009] The upper die includes a feeding hole, a shunt bridge arranged on one side of the feeding hole, and a mold core arranged on one side of the shunt bridge;

[0010] The lower die includes a cavity, a flow channel arranged on one side of the cavity, and a cantilever arranged between the flow channels.

[0011] Preferably, the mold core is composed of two parts, wherein the part corresponding to the cantilever is provided with threaded holes with a depth of 10-20mm.

[0012] Preferably, the cantilever comprises bolt holes provided on the surface and penetrating through.

[0013] The mold core and the cantilever are locked by bolts.

[0014] Preferably, the distribution bridge is staggered in an "X" shape, dividing the feeding hole into four fan-shaped holes.

[0015] Preferably, the cantilever is connected to the lower mold by a single bridge.

[0016] Preferably, the lower mold further comprises a discharging port arranged on one side of the cantilever.

[0017] Compared with the prior art, the aluminum extrusion mold with a single-bridge cantilever has the following beneficial effects:

[0018] The aluminum extrusion mold with a single-bridge cantilever is provided with four fan-shaped holes in a "plum blossom bridge" shape, and the holes are drilled and threaded at the mold core of the upper mold. Long bolts are directly passed through the upper mold at the positions corresponding to the cantilevers of the lower mold, and are fastened and locked. During extrusion, the upper and lower molds are formed into a whole through the bolts, so as to protect the cantilevers of the lower mold. This way is more convenient for processing and using on site, and is faster in polishing and mold soaking. Moreover, the cost is reduced, the support force of the cantilevers of the lower mold is higher based on the original design of the four holes of the plum blossom bridge, and the collapse of the cantilevers is reduced, so that the risk of mold scrap is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is an exploded view of the aluminum extrusion mold with a single-bridge cantilever provided by the utility model;

[0020] Fig. 2 is another angle of the exploded view of the aluminum extrusion mold with a single-bridge cantilever provided by the utility model;

[0021] Fig. 3 is an internal structure view of the aluminum extrusion mold with a single-bridge cantilever provided by the utility model;

[0022] In the figure: 1, mold body; 2, upper mold; 3, lower mold; 201, feeding hole; 201a, fan-shaped hole; 202, distribution bridge; 203, mold core; 203a, threaded hole; 301, cavity; 302, runner; 303, cantilever; 303a, bolt hole; 303b, single bridge; 304, discharging port; 4, bolt. DETAILED DESCRIPTION

[0023] The utility model will be made further detailed description below combining with the drawings and specific embodiments. The advantages and features of the utility model will be more clear according to the following description and claims. It should be noted that, the drawings all adopt very simplified form and all use non-precise proportion, only to facilitate, clear and assist the purpose of description of the utility model embodiment.

[0024] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0025] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances. Embodiment

[0026] The utility model provides a kind of single-bridge cantilever's aluminum extrusion die, please refer to Figs. 1-3 , including die 1, the die 1 includes upper die 2, and the lower die 3 of setting in the upper die 2 one side;The upper die 2 includes feed hole 201, the shunt bridge 202 of setting in the feed hole 201 one side, and the die core 203 of setting in the shunt bridge 202 one side;The lower die 3 includes cavity 301, the runner 302 of setting in the cavity 301 one side, the cantilever 303 of setting in the runner 302 between.

[0027] The mold core 203 is composed of two parts, wherein the part corresponding to the cantilever 303 is provided with a threaded hole 203a with a depth of 10-20mm on the surface; the cantilever 303 comprises a bolt hole 303a provided on the surface and penetrating through; the mold core 203 is locked with the cantilever 303 through a bolt 4; the shunt bridge 202 is staggered in an "X" shape, dividing the feeding hole 201 into four fan-shaped holes 201a in a "wreath bridge" shape; the cantilever 303 is connected with the lower mold 3 through a single bridge 303b; the lower mold 3 further comprises a discharge port 304 arranged on one side of the cantilever 303.

[0028] It should be noted that in the embodiment, the mold core 203 is fixedly installed on the shunt bridge 202, the cantilever 303 has a cross section with a length of 120mm, a height of 60mm and a thickness, and the single bridge 303b has an opening with a width of 15mm, and the product is produced on a 1800T machine and a 178 aluminum bar. Because the product is a profile with a small opening position, the cantilever 303 has a large area, and the cantilever 303 is prone to collapse, and the mold is prone to be scrapped on the machine. Therefore, the upper and lower molds are fixedly connected through bolts to form an integral whole, so as to increase the support strength of the lower mold, reduce the elastic deformation of the cantilever 303, and prevent the cantilever 303 from being scrapped due to insufficient support.

[0029] In summary, the aluminum extrusion mold of the single-bridge cantilever of the utility model is designed with four fan-shaped holes in a "wreath bridge" shape. A hole is drilled and tapped at the mold core of the upper mold, and a long bolt is directly passed through the upper mold at the corresponding position of the cantilever of the lower mold to be fastened and locked. During extrusion, the upper and lower molds are formed into an integral whole through the screw at this position to protect the cantilever of the lower mold. This way is more convenient for processing on the original suspension bridge process, more convenient for use on site, faster for polishing and mold soaking, and lower in alkali cost. Based on the original design scheme of the four-hole wreath bridge, the support force of the cantilever of the lower mold is higher, the cantilever collapse is reduced, and there is no risk of mold scrapping.

[0030] The above description is only a description of the preferred embodiment of the utility model, and does not limit the scope of the utility model in any way. Any modification or modification of the utility model made by a person skilled in the art based on the above disclosure is within the protection scope of the claims.

Claims

1. A single-bridge cantilevered aluminum extrusion die characterized by, Comprising, a mold (1) comprising an upper mold (2) and a lower mold (3) arranged on one side of the upper mold (2); the upper mold (2) comprising a feeding hole (201), a flow distribution bridge (202) arranged on one side of the feeding hole (201), and a mold core (203) arranged on one side of the flow distribution bridge (202); the lower mold (3) comprising a cavity (301), a runner (302) arranged on one side of the cavity (301), and a cantilever (303) arranged between the runners (302).

2. A single bridge cantilevered aluminum extrusion die as defined in claim 1, wherein, the mold core (203) is composed of two parts, wherein the part corresponding to the cantilever (303) is provided with a threaded hole (203a) with a depth of 10-20 mm on the surface.

3. A single bridge cantilevered aluminum extrusion die as defined in claim 2 wherein, the cantilever (303) comprises a bolt hole (303a) arranged on the surface and penetrating through; the mold core (203) and the cantilever (303) are locked by a bolt (4).

4. A single bridge cantilevered aluminum extrusion die as defined in claim 1 wherein, the flow distribution bridge (202) is staggered in the shape of "X", dividing the feeding hole (201) into four fan-shaped holes (201a) in the shape of "plum blossom bridge".

5. A single bridge cantilevered aluminum extrusion die as defined in claim 1 wherein, the cantilever (303) is connected to the lower mold (3) by a single bridge (303b).

6. A single bridge cantilevered aluminum extrusion die as defined in claim 4 wherein, the lower mold (3) further comprises a discharge port (304) arranged on one side of the cantilever (303).

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