A four-cavity die for an automotive armrest profile

Abstract

An automotive armrest profile four-cavity mold, including a matching upper mold, lower mold, and liquid nitrogen pad; four profile outlets are provided on the lower mold, and feeding ports matching the four profile outlets are provided on the upper mold; the four profile outlets are arranged around the central position of the disc-shaped lower mold and are evenly distributed. In this application, a unique four-cavity mold is adopted. Compared with the traditional single-cavity mold, the efficiency is increased by four times. At the same time, the mold cost is reduced and the loss cycle is shortened, greatly improving the production efficiency of the enterprise and reducing the cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of aluminum profile extrusion dies, and particularly relates to a four-out-of-one die for automotive armrest profiles. Background Art

[0002] Aluminum is the third most abundant element in the earth's crust after oxygen and silicon, and is also the most abundant metallic element in the earth's crust, mainly existing in the form of aluminosilicate ores. Among metal varieties, aluminum is the second largest metal after steel.

[0003] Metal profiles refer to solid or hollow straight bars formed by plastic processing of metals, having a certain cross-sectional shape and size. There are a wide variety of profile varieties and specifications, and they are widely used, occupying a very important position in rolling production. At the same time, aluminum alloy is one of the most widely used non-ferrous metal structural materials in industry, and is widely used in aviation, aerospace, automotive, machinery manufacturing, shipbuilding and chemical industries. Currently, aluminum alloy is the most used alloy material.

[0004] As a kind of aluminum profile, automotive armrest profiles are generally extruded and formed through special dies, usually one-out-of-one or one-out-of-two dies, with low production efficiency, unable to meet daily output, and high die scrap rate and large cost.

[0005] Therefore, in view of the above existing defects, the present application further improves and studies the die for automotive armrest profiles. Summary of the Invention

[0006] In view of the above deficiencies in the prior art, the present invention provides a four-out-of-one die for automotive armrest profiles, which changes the one-out-of-one or one-out-of-two die structure in the prior art, adopts a four-out-of-one form, greatly improves the production efficiency, and also improves the extrusion speed by setting extrusion holes on the die, significantly reducing the production cost of enterprises.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions.

[0008] A four-out-of-one die for automotive armrest profiles includes a cooperating upper die, lower die, and liquid nitrogen pad; four profile outlets are provided on the lower die, and a feed inlet cooperating with the four profile outlets is provided on the upper die; the four profile outlets are arranged around the central position of the disc-shaped lower die and are evenly distributed.

[0009] In the present application, a unique four-out-of-one die is adopted. Compared with the traditional one-out-of-one die, the efficiency is increased by four times. At the same time, the die cost is reduced and the loss cycle is shortened, greatly improving the production efficiency of enterprises and reducing the cost.

[0010] In a preferred embodiment, the length of the working belt on the lower die is 4 mm to 5 mm. In a traditional single-cavity die, the length of the working belt is generally 3 mm. In this application, since the profile outlet is not located at the center of the die, in order to enable good extrusion and discharging at each profile outlet, the length of the working belt is increased. It is found in actual work that this structural improvement can well ensure the dimensional stability of the profile discharging and the high quality of the product.

[0011] In a preferred embodiment, in the upper die, the bridge slope on the side of the bridge structure facing the lower die is 14° to 16°. This structure is also designed to adapt to the four-cavity structure. The bridge slope in the original single-cavity structure is about 20°, and in this application, it is about 15°. It is found in actual work that this structural improvement can well improve the surface of the profile, while increasing the extrusion speed and production efficiency.

[0012] In a preferred embodiment, in the upper die, the slope of the neck position on the bridge structure is 4° to 6°. In the original single-cavity structure, the slope of the neck position is generally about 8°. In this application, in order to adapt to the four-cavity structure design, it is changed to about 5°. It is found in actual work that this structural improvement can improve the tool head strength and the die life.

[0013] In a preferred embodiment, all four of the profile outlets are arranged in the horizontal direction. This structure takes into account the product placement problem during discharging and improves the discharging efficiency.

[0014] Compared with the prior art, the present invention has the following beneficial effects: It provides a four-cavity die for automotive armrest profiles, changing the die structure of single-cavity or two-cavity in the prior art to a four-cavity form, greatly improving the production efficiency. Through the setting of the extrusion holes on the die, the extrusion speed is also increased, significantly reducing the production cost of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the assembled four-cavity die in the present invention.

[0016] Figure 2 It is a schematic diagram of the lower die in the present invention.

[0017] Figure 3 It is a schematic diagram of the upper die in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] In the following embodiments, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and thus should not be construed as limiting the present invention. In addition, the terms: first, second, etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present invention, unless otherwise clearly specified and limited, the terms: installation, connection, connection, etc. should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present practical application according to specific circumstances.

[0021] See Figures 1 to 3 , a four-out-of-one die for an automotive armrest profile in the present application includes a cooperating upper die 1, a lower die 2, and a liquid nitrogen pad 3; four profile outlets 21 are provided on the lower die 2, and a feed port 11 cooperating with the four profile outlets 21 is provided on the upper die 1; the four profile outlets 21 are arranged around the central position of the disc-shaped lower die 2 and are evenly distributed.

[0022] Specifically, in Embodiment 1 of the present application, the length of the working belt on the lower die 2 is 4 mm to 5 mm. In a traditional one-out-of-one die, the length of the working belt is generally 3 mm. In the present application, since the profile outlet is not located at the center of the die, in order to enable each profile outlet to extrude and discharge materials well, the length of the working belt is lengthened. It is found in actual work that this structural improvement can well ensure the dimensional stability of the profile discharge and the high product quality.

[0023] In Embodiment 2 of the present application, in the upper die 1, the bridge slope on the side of the bridge structure facing the lower die 2 is 14° to 16°. This structure is also designed to adapt to the four-out-of-one structure. The bridge slope in the original one-out-of-one structure is about 20°, and in the present application, it is about 15°. It is found in actual work that this structural improvement can well improve the surface of the profile, and at the same time increase the extrusion speed and production efficiency.

[0024] In Embodiment 3 of the present application, in the upper die 1, the slope of the neck position on the bridge structure is 4° to 6°. In the original one-out-of-one structure, the slope of the neck position is generally about 8°. In the present application, in order to adapt to the four-out-of-one structure design, it is changed to about 5°. It is found in actual work that this structural improvement can increase the head strength and the die life.

[0025] In Embodiment 4 of the present application, the four profile outlets 21 are all arranged in the horizontal direction. This structure takes into account the problem of product placement during discharging, improving the discharging efficiency.

[0026] In the above different embodiments, the technical features can be combined with each other to form new embodiments, realizing more optimized technical solutions. In the above embodiments, the bridge position structure refers to the plate structure provided in the feeding port 11 of the upper die 1, and the bridge position slope refers to the inclination degree of the side wall of the plate structure. A tool head is fixedly arranged on the bridge position structure. After assembly, the tool head cooperates with the profile outlet 21 for discharging. The connection position between the bridge position structure and the tool head is the neck position, and the outer wall of the neck position has an inclination towards the lower die 2, which is the neck position slope.

[0027] In the present application, the liquid nitrogen pad 3 is used to pass liquid nitrogen for cooling, improving the quality of the extruded profiles.

[0028] As can be seen from the above description, in the present application, a unique one-out-of-four die is adopted. Compared with the traditional one-out-of-one die, the efficiency is increased by four times. At the same time, the die cost is reduced and the loss cycle is shortened, greatly improving the production efficiency of the enterprise and reducing the cost.

[0029] As described above, the present invention provides a one-out-of-four die for automotive armrest profiles, which changes the die structure of one-out-of-one or one-out-of-two in the prior art, adopts the form of one-out-of-four, increases the feeding hole positions to four, and doubles the output; at the same time, the multiple holes are reasonably distributed, and the die does not exceed the extrusion limit of the aluminum rod diameter; the length of the working belt of the lower die is improved and lengthened to maintain a stable discharging state; at the same time, the special process of the die neck position is used to assist, which can enhance the strength of the tool head; the die neck position is milled flat to keep the discharging smooth. The present application greatly improves the production efficiency. By setting the extrusion holes on the die, the extrusion speed is also increased, significantly reducing the production cost of the enterprise.

[0030] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention is subject to the claims. Any replacement, deformation, and improvement that are easily conceivable by those skilled in the art to this technology fall within the protection scope of the present invention.

Claims

1. An automotive armrest profile one-out-of-four mold, characterized in that It includes a matching upper die (1), a lower die (2), and a liquid nitrogen pad (3); Four profile outlets (21) are provided on the lower die (2), and a feed inlet (11) matching with the four profile outlets (21) is provided on the upper die (1); The four profile outlets (21) are arranged around the center position of the disc-shaped lower die (2) and are evenly distributed; The length of the working belt on the lower die (2) is 4 mm; In the upper die (1), the bridge slope on the side of the bridge structure facing the lower die (2) is 14° - 16°; In the upper die (1), the slope of the neck position on the bridge structure is 4° - 6°.

2. The one-out-of-four mold for an automotive armrest profile according to claim 1, characterized in that The four profile outlets (21) are all arranged in the horizontal direction.

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