CN214719468U

CN214719468U - Aluminum extrusion die for automobile anti-collision beam

Info

Publication number: CN214719468U
Application number: CN202120539925.9U
Authority: CN
Inventors: 张士龙
Original assignee: Zhejiang Kaisite Technology Co ltd
Current assignee: Zhejiang Kaisite Technology Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-16
Anticipated expiration: 2031-03-16

Abstract

The utility model provides an automobile anti-collision beam aluminum extrusion die, including the upper die and the lower die that mutually support, be provided with a plurality of feed port on the upper die, be provided with the reposition of redundant personnel bridge between two adjacent feed ports, the upper die is left and right asymmetric mould, and the aperture of the feed port on right side is greater than the aperture of other feed ports, still be provided with the auxiliary bridge in the feed port; through add in the feed inlet of large aperture and assist the bridge to export both ends and set up respectively on assisting the bridge and assist bridge heavy bridge and the bridge heavy bridge is assisted in the ejection of compact, through reasonable calculation heavy bridge distance, adjust to realizing at the uniform velocity pan feeding, reduce pan feeding pressure, avoid the worker to be pressed the risk of falling, solved the technical problem such as being difficult to stabilize ejection of compact, shaping poor quality that exists among the prior art.

Description

Aluminum extrusion die for automobile anti-collision beam

Technical Field

The utility model relates to a hot extrusion die technical field especially relates to car anticollision roof beam aluminium extrusion die.

Background

Aluminum products have a series of excellent characteristics, such as good strength, good weather resistance, low density, etc., and are often used for manufacturing radiator parts or exterior trim parts. At present, in the production process of aluminum profiles, an extrusion die is needed to shape the aluminum profiles.

Chinese utility model patent CN201921773029.8 discloses an aluminium alloy extrusion die, go up the mould and include a plurality of diffluence orifices and form and be in reposition of redundant personnel bridge between the diffluence orifices, it is in still including setting up to go up the mould the heavy bridge and the setting of reposition of redundant personnel bridge feed end face are in go up the back of the body hole at mould middle part, heavy bridge is outer wide interior narrow structure, and the aluminium material is followed heavy bridge inflow the back of the body hole.

However, for a type of asymmetric section with a longer right cross section, the feed hole of the side mold needs to be designed to be larger, so that the flow rate balance is not easy to control, stable discharging is difficult, the molding quality is poor, and the feeding pressure is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, provide car anticollision roof beam aluminium extrusion die, through add in the feed inlet of large aperture and assist the bridge, and set up respectively on assisting the bridge at export both ends and assist bridge sinking and the bridge sinking is assisted in the ejection of compact, through reasonable calculation bridge sinking distance, adjust to realizing at the uniform velocity pan feeding, reduce pan feeding pressure, avoid the worker to be pressed the risk, the technical problem such as exist among the prior art be difficult to stabilize the ejection of compact, the shaping quality is poor has been solved.

In order to achieve the above object, the utility model provides a following technical scheme:

automobile anticollision roof beam aluminium extrusion mould, including the last mould and the lower mould of mutually supporting, upward be provided with a plurality of feed port on the mould, be provided with the reposition of redundant personnel bridge between two adjacent feed ports, go up the mould and be left right asymmetric mould, the aperture of the feed port on right side is greater than the aperture of other feed ports, still be provided with in the feed port and assist the bridge.

Preferably, one end of the auxiliary bridge, which is opposite to the feeding end face, is provided with a feeding auxiliary bridge sinking bridge.

Preferably, a back hole is formed in the center of the upper die, and a discharging auxiliary bridge sinking bridge connected with the back hole is arranged at one end, opposite to the discharging end face, of the auxiliary bridge.

Preferably, back hole sinking bridges are arranged on two sides outside the back holes, and the back hole sinking bridges are arranged from the center of the upper die to two ends in a transition type gradually sinking mode.

Preferably, the back hole adopts a two-stage flow guide structure, and the back hole comprises a front end with a large aperture and a rear end with a small aperture.

Preferably, an inlet pressure reducing side which is inclined towards the discharge end face is arranged at the edge of the flow dividing bridge, which is opposite to the feed end face.

Preferably, the center of the lower die is sequentially provided with a welding chamber, a cavity and a discharge port from the feeding end face to the discharge end face, and the inner surface of the welding chamber is provided with a plurality of convex base blocks along the edge of the cavity.

Preferably, the feed port comprises a small straight hole section, a hole expanding section and a large straight hole section which are sequentially connected from the feed end face to the discharge end face, and the cross section of the hole expanding section is gradually enlarged from the feed end to the discharge end.

Preferably, the inner edge of the feeding end of the feeding hole is provided with a feeding sinking bridge.

The beneficial effects of the utility model reside in that:

(1) the utility model discloses to the longer asymmetric section bar of right side cross-section, through set up the auxiliary bridge in the feed inlet of right side large aperture to export both ends on the auxiliary bridge and set up feeding auxiliary bridge heavy bridge and ejection of compact auxiliary bridge heavy bridge respectively, through reasonable calculation heavy bridge distance, adjust to realizing at the uniform velocity pan feeding, reduce pan feeding pressure, avoid the risk that the worker's head is pressed;

(2) the utility model arranges the back hole sinking bridges on the two sides of the back hole, and reduces the friction distance of the back hole by the diversion of the back hole sinking bridges, so that the middle rib has sufficient flow and the problem of insufficient middle feeding is solved; in addition, the back hole adopts two-stage flow guide, so that the strength of the die is ensured while sufficient material supply is realized;

(3) the utility model adopts the design of the semi-circular arc edge and increases the inlet pressure reducing edge, thereby dispersing the extrusion force of the extruder, leading the aluminum material to flow in quickly, reducing the risk of cracking of the die and increasing the stability of the discharged sectional material;

(4) the utility model discloses an increase the base block in the lower mould welding closes the room, can prevent that whole section bar bullet from becoming the not shaping of the ejection of compact that causes seriously, the unqualified scheduling problem of wall thickness, under the condition of the mould pincers worker adjustment mould of being convenient for repair, do not increase pressure guarantees more stable ejection of compact.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a first schematic structural view of an upper mold of the present invention;

FIG. 4 is a second schematic structural view of the upper mold of the present invention;

fig. 5 is a schematic diagram of the position relationship between the base block and the cavity of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Examples

As shown in fig. 1-2, the automobile anti-collision beam aluminum extrusion die comprises an upper die 1 and a lower die 2 which are matched with each other, wherein a plurality of feeding holes 3 are formed in the upper die 1, a shunting bridge 4 is arranged between every two adjacent feeding holes 3, the upper die 1 is a left-right asymmetric die, the aperture of the feeding hole 3 ' on the right side is larger than that of the other feeding holes 3 ', and an auxiliary bridge 5 is further arranged in the feeding hole 3 '.

Preferably, as shown in fig. 2, the end of the auxiliary bridge 5 facing the feeding end face is provided with a feeding auxiliary bridge sinking bridge 51.

Preferably, as shown in fig. 1-2, a back hole 6 is provided in the center of the upper die 1, and a discharging auxiliary bridge sinking bridge 52 connected with the back hole 6 is provided at one end of the auxiliary bridge 5 facing the discharging end face.

In this embodiment, to the longer asymmetric section bar of right side cross-section, through addding in the feed port 3' of right side large aperture and assist bridge 5 to set up feeding and assist bridge heavy bridge 51 and ejection of compact and assist bridge heavy bridge 52 respectively at the last export both ends of assisting bridge 5, through reasonable calculation heavy bridge distance, adjust to realizing at the uniform velocity pan feeding, reduce pan feeding pressure, avoid the risk that the worker head was pressed.

Preferably, as shown in fig. 1 and 4, back hole sinking bridges 7 are arranged on two sides outside the back hole 6, and the back hole sinking bridges 7 are gradually sunk from the center of the upper die 1 to two ends in a transitional manner.

In this embodiment, through setting up back of the body hole heavy bridge 7 in back of the body hole 6 both sides, sink 7 water conservancy diversion through back of the body hole and reduce the friction distance in short back of the body hole for middle muscle has sufficient flow, solves the problem that the middle feed is not enough.

Preferably, as shown in fig. 2, the back hole 6 has a two-stage flow guiding structure, which includes a front end 61 with a large aperture and a rear end 62 with a small aperture.

In this embodiment, two-stage flow guiding is adopted through the back hole 7, so that the strength of the mold is ensured while the material supply is sufficient.

Preferably, as shown in fig. 1 and 3, an inlet pressure reducing edge 41 inclined toward the discharge end face is provided at an edge of the flow dividing bridge 4 facing the feed end face.

Because the section bar mould import department bears pressure greatly, and is liable to split, in this embodiment, through adopting the design of semicircle arc limit to increase import and subtract blank 41, can disperse the extrusion force of extruder, water conservancy diversion aluminium material flows in fast, reduces the mould risk of splitting, increases the steadiness of ejection of compact section bar.

Preferably, as shown in fig. 2, a welding chamber 21, a cavity and a discharge port 22 are sequentially arranged in the center of the lower die 2 from a feeding end surface to a discharging end surface, and as shown in fig. 1 and 5, a plurality of protruding base blocks 8 are arranged on the inner surface of the welding chamber 21 along the edge of the cavity.

In this embodiment, through increase base block 8 in the welding chamber 21, can prevent that the ejection of compact that whole section bar bullet becomes serious and arouses is not formed, the unqualified scheduling problem of wall thickness, under the condition of the mould of being convenient for repair bench worker adjustment mould, do not increase pressure, guarantee more stable ejection of compact.

Preferably, as shown in fig. 2, the inlet hole 3 includes a small straight hole section 31, a hole expanding section 32 and a large straight hole section 33 which are connected in sequence from the inlet end surface to the outlet end surface, and the cross section of the hole expanding section 32 is gradually enlarged from the inlet end to the outlet end.

In this embodiment, reaming section 32 inclination is great for aluminium material can be effectively quick little friction outwards fill, guarantees that the outside feed is sufficient.

Preferably, as shown in fig. 2, the inner edge of the feeding end of the feeding hole 3 is provided with a feeding sinker 34.

The mould product of this embodiment goes up the mould feed inlet and takes the scheme of variable concave mould fillet radius and vary voltage limit, is located along the fillet radius by the feeding center and gradually sinks, and edge design subtracts the blank limit, and the bridge is assisted in the increase of section bar right side strong point department, has solved among the prior art preparation car anticollision roof beam not shaping, with corrugating, the not accurate scheduling problem of size, can discharge the material better sooner, reduces the unnecessary loss, has very strong practicality.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Automobile anticollision roof beam aluminium extrusion mould, including last mould (1) and lower mould (2) of mutually supporting, upward be provided with a plurality of feed port (3) on mould (1), be provided with between two adjacent feed port (3) and shunt bridge (4), its characterized in that, go up mould (1) and be controlling asymmetric mould, the aperture of feed port (3 ') on right side is greater than the aperture of other feed port (3 "), still be provided with in feed port (3') and assist bridge (5).

2. The aluminum extrusion die for the automobile anti-collision beam is characterized in that one end, facing the feeding end face, of the auxiliary bridge (5) is provided with a feeding auxiliary bridge sinking bridge (51).

3. The aluminum extrusion die for the automobile anti-collision beam is characterized in that a back hole (6) is formed in the center of the upper die (1), and a discharging auxiliary bridge sinking bridge (52) connected with the back hole (6) is arranged at one end, facing a discharging end face, of the auxiliary bridge (5).

4. The automobile anti-collision beam aluminum extrusion die according to claim 3, characterized in that back hole sunk bridges (7) are arranged on two sides outside the back holes (6), and the back hole sunk bridges (7) are gradually sunk from the center of the upper die (1) to two ends in a transition manner.

5. The aluminum extrusion die for automobile impact beams according to claim 3, characterized in that the back hole (6) adopts a two-stage flow guiding structure, which comprises a large-bore front end (61) and a small-bore rear end (62).

6. The aluminum extrusion die for the automobile anti-collision beam is characterized in that an inlet pressure reducing edge (41) which is inclined towards a discharge end face is arranged at the edge of the flow dividing bridge (4) opposite to the feed end face.

7. The automobile anti-collision beam aluminum extrusion die according to claim 1, characterized in that a welding chamber (21), a cavity and a discharge port (22) are sequentially arranged in the center of the lower die (2) from a feeding end face to a discharge end face, and a plurality of convex base blocks (8) are arranged on the inner surface of the welding chamber (21) along the edge of the cavity.

8. The automobile anti-collision beam aluminum extrusion die according to claim 1, wherein the feeding hole (3) comprises a small straight hole section (31), a hole expanding section (32) and a large straight hole section (33) which are sequentially connected from a feeding end surface to a discharging end surface, and the cross section of the hole expanding section (32) is gradually enlarged from the feeding end to the discharging end.

9. The aluminum extrusion die for automobile impact beams according to claim 1, characterized in that the inner edge of the feeding end of the feeding hole (3) is provided with a feeding sinking bridge (34).