Anti-direct-punching die for thick point feeding

Abstract

The utility model belongs to the technical field of extrusion dies, and discloses a thick point feeding anti-direct-punching die which comprises an upper die and a lower die which are detachably connected together, a feeding hole area is formed in the upper die, the feeding hole area comprises two thin material feeding hole areas used for feeding and forming aluminum profile thin material areas, and the two thin material feeding hole areas are communicated with each other. A thick material feeding hole area used for feeding a formed aluminum profile thick material area is arranged on the upper die and located between the two thin material feeding hole areas, a flow guide slope is arranged on the side wall, close to the lower die, of the thick material feeding hole area, and a welding chamber area is arranged at the position, corresponding to the feeding hole area, of the face, close to the upper die, of the lower die. A forming cavity is formed in the welding chamber area; according to the utility model, the overall structure is simple, the flow rate can be controlled during thick point feeding in the aluminum profile extrusion production process, the phenomena of aggravated die wear and unstable profile size caused by the direct punching phenomenon during thick point feeding are avoided, and the use effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extrusion dies, and in particular relates to a die capable of preventing direct impact of thick-point feeding. Background Art

[0002] With the rapid development of modern industrial technology, aluminum profiles are widely used in aerospace, automobile manufacturing, architectural decoration and other fields due to their advantages such as light weight, high strength and good corrosion resistance. In the production process of aluminum profiles, the extrusion die is one of the key equipment, and its performance and design are directly related to the quality and production efficiency of aluminum profiles.

[0003] However, when processing thick point feed, traditional extrusion dies often face problems such as straight punch, deformation, and rough surface. These problems not only affect the quality of the finished aluminum profiles, but also increase production costs and subsequent processing difficulties. In particular, the straight punch phenomenon is prone to occur during the extrusion process of thick point feed due to the large thickness and poor fluidity of the material. That is, the material directly impacts the die outlet, resulting in increased die wear and unstable profile size. Figure 1 The figure shows a schematic cross-sectional view of an aluminum profile, wherein at the thick material area 100 of the aluminum profile, during the extrusion molding process, the aluminum rod rushes straight into the molding area. Since the material is thick here, the straight rush causes the flow rate to be too fast, and the poor fluidity of the aluminum rod will cause the production size to be unqualified. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a thick point feeding anti-straight-impulse die with a simple overall structure, which can control the flow rate when feeding thick points during the aluminum profile extrusion production process, avoid the straight-impulse phenomenon when feeding thick points, which leads to aggravated mold wear and unstable profile size, and improve the use effect.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A mold for thick-point feeding and preventing straight impact, comprising an upper mold and a lower mold which are detachably connected together, wherein a feed hole area is provided on the upper mold, and the feed hole area includes two thin material feed hole areas for feeding and forming aluminum profile thin material areas, a thick material feed hole area for feeding and forming aluminum profile thick material areas is provided between the two thin material feed hole areas on the upper mold, a guide slope is provided on one side wall of the thick material feed hole area close to the lower mold, and a welding chamber area is provided on a surface of the lower mold close to the upper mold at a position corresponding to the feed hole area, and a molding cavity is provided on the welding chamber area.

[0007] The following is a further optimization of the above technical solution by the utility model:

[0008] The angle between the side wall of the guide slope and the vertical side wall of the thick material feeding hole area is set to α.

[0009] Further optimization: the value range of the angle α is 20-28°.

[0010] Further optimization: the forming cavity includes a thin material forming area opened on the welding chamber area and at a position corresponding to the thin material feeding hole area.

[0011] Further optimization: a thick material forming area is provided at a position on the welding chamber area corresponding to the thick material feeding hole area.

[0012] Further optimization: working belts are arranged on the side walls of the thin material forming area and the thick material forming area at the ends away from the welding chamber area.

[0013] The utility model adopts the above technical scheme, which is ingenious in conception and reasonable in structure. In the extrusion production of aluminum profiles with thick material areas, a guide slope structure is set to buffer the flow rate of the aluminum bar material. First, it is avoided that the aluminum bar material directly hits the mold and causes mold damage. Secondly, the flow rate of the aluminum bar material is slowed down to ensure that the aluminum bar material is provided with sufficient material when entering the forming thick material area, avoiding the problem of aluminum profile quality degradation due to insufficient supply, and improving the production quality of aluminum profiles. At the same time, the mold is safe and reliable, easy to operate, and the overall structure is simple, convenient to manufacture and produce, which can reduce production and use costs and improve economic benefits.

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic cross-sectional view of an aluminum profile in an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the upper mold structure in the embodiment of the utility model;

[0018] Figure 4 It is a cross-sectional view of the upper mold in the embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the lower mold in the embodiment of the utility model;

[0020] Figure 6 It is a partial front view of the lower mold in the embodiment of the utility model.

[0021] In the figure: 100-thick material area; 200-thin material area; 1-upper die; 11-feed hole area; 110-thin material feed hole area; 111-thick material feed hole area; 12-guide slope; 2-lower die; 21-welding chamber area; 22-molding cavity; 220-molding thin material area; 221-molding thick material area. DETAILED DESCRIPTION

[0022] like Figure 1-6 As shown: a mold for thick-point feeding and preventing straight impact, including an upper mold 1 and a lower mold 2 which are detachably connected together, the upper mold 1 is provided with a feed hole area 11, the feed hole area 11 includes two thin material feed hole areas 110 for feeding and forming aluminum profile thin material areas 200, a thick material feed hole area 111 is provided on the upper mold 1 between the two thin material feed hole areas 110 for feeding and forming aluminum profile thick material areas 100, a guide slope 12 is provided on one side wall of the thick material feed hole area 111 close to the lower mold 2, a welding chamber area 21 is provided on one side of the lower mold 2 close to the upper mold 1 at a position corresponding to the feed hole area 11, and a forming cavity 22 is provided on the welding chamber area 21.

[0023] like Figure 4 As shown, the angle between the side wall of the guide slope 12 and the vertical side wall of the thick material feeding hole area 111 is set to α. In this embodiment, the value range of the angle α is 20-28°.

[0024] With this design, when the aluminum bar material enters from the thick material feed hole area 111, the guide slope 12 plays a buffering role, reduces the flow rate of the aluminum bar material entering, avoids the aluminum bar material from directly impacting the lower mold 2, and increases the service life of the mold.

[0025] like Figure 5-6 As shown together, the forming cavity 22 includes a thin material forming area 220 which is opened on the welding chamber area 21 and is located at a position corresponding to the thin material feeding hole area 110 .

[0026] A thick material forming area 221 is provided at a position on the welding chamber area 21 corresponding to the thick material feeding hole area 111 .

[0027] A working belt is provided on the side wall of the thin material forming area 220 and the thick material forming area 221 away from the welding chamber area 21, which is not marked in the figure. The working belt can ensure that the shape, size and surface quality of the extruded aluminum profile meet the requirements in the cooling state. The specific working principle is well known in the prior art and will not be repeated here.

[0028] When in use, the aluminum bar material enters from the feed hole area 11 , and the aluminum bar material entering the thin material feed hole area 110 directly flows into the welding chamber area 21 of the lower mold 2 for welding, and then is formed in the thin material forming area 220 .

[0029] The aluminum bar material entering the thick material feed hole area 111 first passes through the buffering effect of the guide slope 12 to reduce the flow rate of the aluminum bar material and ensure sufficient supply of the aluminum bar material, and then goes to the welding chamber area 21 of the lower mold 2 for welding and enters the thick material forming area 221 for forming.

[0030] In addition to this embodiment, the structure of the guide slope 12 is also applicable to other aluminum profiles with thick material areas to avoid damage to the mold caused by direct feeding, thereby ensuring the quality of the extruded aluminum profiles.

[0031] For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and deformations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. A mold for preventing direct impact when feeding thick material, comprising an upper mold (1) and a lower mold (2) that are detachably connected together, characterized in that: The upper die (1) is provided with a feed hole area (11), the feed hole area (11) comprising two thin material feed hole areas (110) for feeding and forming thin material areas (200) of aluminum profiles; a thick material feed hole area (111) for feeding and forming thick material areas (100) of aluminum profiles is provided between the two thin material feed hole areas (110) on the upper die (1); a guide slope (12) is provided on a side wall of the thick material feed hole area (111) close to the lower die (2); a welding chamber area (21) is provided on a side of the lower die (2) close to the upper die (1) at a position corresponding to the feed hole area (11); a forming cavity (22) is provided on the welding chamber area (21).

2. A thick point feeding and anti-straight-impact die according to claim 1, characterized in that: The angle between the side wall of the guide slope (12) and the vertical side wall of the thick material feeding hole area (111) is set to α.

3. A thick point feeding and anti-straight-impact die according to claim 2, characterized in that: The angle α has a value ranging from 20 to 28°.

4. A thick point feeding and anti-straight-impact die according to claim 3, characterized in that: The forming cavity (22) comprises a thin material forming area (220) which is opened on the welding chamber area (21) and is located at a position corresponding to the thin material feeding hole area (110).

5. A thick point feeding and anti-straight-impact die according to claim 4, characterized in that: A thick material forming area (221) is provided at a position on the welding chamber area (21) corresponding to the thick material feeding hole area (111).

6. A thick point feeding and anti-straight-impact die according to claim 5, characterized in that: Working belts are provided on the side walls of the thin material forming area (220) and the thick material forming area (221) at the ends away from the welding chamber area (21).

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