CN214516820U

CN214516820U - Cylinder material aluminum profile extrusion die

Info

Publication number: CN214516820U
Application number: CN202120539251.2U
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: 2021-10-29
Anticipated expiration: 2031-03-16

Abstract

The utility model provides a cylinder material aluminium alloy extrusion die, including the upper die and the lower die of mutually supporting, be provided with feed port and the discharge opening of mutual intercommunication on the upper die, be provided with respectively between two adjacent feed ports and two adjacent discharge openings and assist the bridge, the center of upper die is provided with well mold core, and the one end that well mold core is located the feed port is provided with the decompression angle of slope, and the cross-section at decompression angle enlarges from the feed end to the discharge end gradually; through the decompression angle that sets up reasonable inclination in feed inlet department, alleviate pan feeding pressure, the aluminium material gets into and mutually supports through reaming section and first pan feeding internal angle behind the mould, the velocity of flow reaches balance when guaranteeing that the feed is sufficient, guarantee ejection of compact size, thereby stabilize the ejection of compact of big cross-section area little hole section bar, it takes place deformation to reduce little worker head die core, accurate section bar size, extension mould life, the technical problem such as this type of section bar shaping difficulty that exists among the prior art has been solved, mould life is short.

Description

Cylinder material aluminum profile extrusion die

Technical Field

The utility model relates to a hot extrusion die technical field especially relates to cylinder material aluminium alloy extrusion die.

Background

The extrusion die belongs to one type of forming die, but other discharging modes are realized by extrusion, and the processing of the shape of an article is realized mainly by changing the physical state of a formed material.

Chinese utility model patent CN201711236649.3 discloses adjustable support aluminium alloy hot extrusion die, including last mould core, well mould core, diffluence orifice and drainage groove, the top of going up the mould core is equipped with well mould core, the top of well mould core is equipped with seam room and decompression bridge, the top evenly distributed of well mould core hangs the nib, the right side of hanging the nib is equipped with the locating pin, the outside evenly distributed bridge position of going up the mould core, the side of bridge position is equipped with down empty sword, the surface of going up the mould core is equipped with the feed port, the outside evenly distributed model lower chamber of well mould core.

However, in the prior art, for a kind of aluminum profile with a large cross section and a small inner hole in the cylinder material, a small head die core for forming the inner hole is easily extruded and deformed or punched, which causes the situations of inaccurate size of the formed aluminum profile and scrapped die.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, the utility model provides a cylinder material aluminium alloy extrusion die, through the decompression angle that sets up reasonable inclination in feed hole department, alleviate pan feeding pressure, the aluminium material gets into mutually supporting through reaming section and first pan feeding interior angle behind the mould, the velocity of flow reaches balance when guaranteeing that the feed is sufficient, guarantee discharge size, thereby stabilize the ejection of compact of big cross-section area little hole section bar, it takes place deformation to reduce little worker head die core, accurate section bar size, extension mould life, the technical problem such as this type of section bar shaping difficulty that exists among the prior art has been solved, mould life is short.

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

cylinder material aluminium alloy extrusion die, including last mould and lower mould of mutually supporting, upward be provided with the feed port and the discharge opening of mutual intercommunication, adjacent two on the mould be provided with respectively between feed port and two adjacent discharge openings and assist the bridge, the center of going up the mould is provided with well mold core, the one end that well mold core is located the feed port is provided with the decompression angle of slope, the cross-section at decompression angle is followed the feed end and is enlarged gradually towards the discharge end.

Preferably, the periphery of the middle mold core is provided with side mold cores in a distributed manner, and one ends of the side mold cores, which are close to the feed hole, are provided with smooth auxiliary bridge sinking bridges.

Preferably, the outer side of the auxiliary bridge sinking bridge is provided with a first inclined feeding inner angle.

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 first feeding inner angle is arranged opposite to the reaming section.

Preferably, a middle die head is arranged at one end, opposite to the discharge hole, of the middle die core, a section, connected with the middle die head, of the middle die core is an inclined second feeding inner angle section, and the section of the second feeding inner angle section gradually expands from the feeding end to the discharge end.

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.

Preferably, the opening of the discharge port is enlarged from the feed end to the discharge end in a step shape.

Preferably, the number of the feed holes is four, the number of the discharge holes is eight, and the feed holes and the discharge holes are respectively arranged on the outer ring of the middle mold core in a surrounding manner.

The beneficial effects of the utility model reside in that:

(1) the utility model effectively disperses the feeding pressure by arranging the pressure reducing angle with reasonable inclination angle at the feeding hole, ensures that the pressure born by the die does not exceed the bearing range with reasonable inclination of the feeding inner angle, avoids premature scrapping, reduces the risk of deformation or washout of the small workhead die core, thereby stabilizing the discharge of the large-section small-bore section bar, ensuring the size of the precise section bar and prolonging the service life of the die;

(2) the utility model discloses a set up the bridge of subsiding a bridge, help the metal to flow into the feed inlet, realize quick filling, through the reasonable slope of first pan feeding interior angle, increase the metal and flow into the space, prevent that little worker head side mold core department feed is not enough, in addition through reaming section and first pan feeding interior angle mutually support, make the velocity of flow reach the balance, guarantee the ejection of compact size;

(3) the utility model realizes the shunting extrusion by arranging the auxiliary bridge between the adjacent feeding holes and the adjacent discharging holes, and reduces the extrusion force born by the die; the inclination angle of the reaming section is large, so that the aluminum material can be effectively, quickly and small-friction filled outwards, and the sufficient outside feeding is ensured.

Drawings

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

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

FIG. 3 is a schematic view of the upper mold structure of the present invention;

fig. 4 is a schematic view of the cavity structure 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, cylinder material aluminium alloy extrusion die, including last mould 1 and lower mould 2 of mutually supporting, it is provided with feed port 3 and discharge opening 4 that communicate each other on 1 to go up the mould, adjacent two be provided with between feed port 3 and two adjacent discharge openings 4 respectively and assist bridge 5, the center of going up mould 1 is provided with well mold core 6, the one end that well mold core 6 is located feed port 3 is provided with the decompression angle 61 of slope, the cross-section at decompression angle 61 is followed the feed end and is enlarged gradually towards the discharge end.

To one type of section bar of little hole in big cross-section area, because hole size undersize, the cross-section is great, consequently very easily leads to little worker head side mold core to be washed away, and the mould is scrapped, in this embodiment, through the decompression angle 61 that sets up reasonable inclination in feed port 3 department, effective dispersion pan feeding pressure reduces little worker head mold core and takes place the risk of deformation or washing away to stabilize the ejection of compact of big cross-section area little hole section bar, accurate section bar size, extension mould life.

In addition, through set up between adjacent feed port 3 and adjacent discharge opening 4 and assist bridge 5, realize shunting the extrusion, alleviate the extrusion force that the mould bore.

Preferably, the outer periphery of the middle mold core 6 is distributed with side mold cores 7, and one end of the side mold cores 7 close to the feed hole 3 is provided with a smooth auxiliary bridge 71.

In this embodiment, the auxiliary bridge 71 is arranged to help the metal flow into the feed inlet, so that the rapid filling is realized.

Preferably, the outer side of the auxiliary bridge counter bridge 71 is provided with a first inclined inner feeding corner 72.

In this embodiment, through the reasonable slope of first pan feeding interior angle 72, increase metal inflow space prevents that side form core 7 department feed is insufficient, sets up through reaming section 32 and first pan feeding interior angle 72 relatively in addition, and both mutually support for the velocity of flow reaches the balance, guarantees ejection of compact size.

In addition, the reasonable inclination of the first feeding inner angle 72 ensures that the pressure borne by the die does not exceed the bearing range, thereby avoiding premature scrapping.

Preferably, 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 the feeding end surface to the discharging end surface, and the cross section of the hole expanding section 32 is gradually enlarged from the feeding end to the discharging end.

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

Preferably, the first feed interior corner 72 is disposed opposite the reamer section 32.

Preferably, a middle die head is arranged at one end, facing the discharge hole 4, of the middle die core 6, a section, connected with the middle die head, of the middle die core 6 is an inclined second feeding inner angle section 62, and the section of the second feeding inner angle section 62 is gradually enlarged from the feeding end to the discharge end.

Preferably, as shown in fig. 1 and 4, a welding chamber 21, a cavity, and a discharge port 22 are provided in this order from the feed end surface toward the discharge end surface in the center of the lower die 2.

In the embodiment, the reasonable depth of the welding chamber 21 is designed through calculation, so that the die is conveniently adjusted during die repairing, and the handling pressure is reduced.

Preferably, the opening of the discharge port 22 is enlarged in a step shape from the feeding end to the discharging end.

Preferably, as shown in fig. 3, the number of the feed holes 3 is four, the number of the discharge holes 4 is eight, and a plurality of the feed holes 3 and the discharge holes 4 are respectively arranged around the outer ring of the middle mold core 6.

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. Cylinder material aluminium alloy extrusion die, including last mould (1) and lower mould (2) of mutually supporting, upward be provided with feed port (3) and discharge opening (4) that communicate each other on mould (1), adjacent two be provided with respectively between feed port (3) and two adjacent discharge openings (4) and assist bridge (5), the center of going up mould (1) is provided with well mold core (6), its characterized in that, the one end that well mold core (6) are located feed port (3) is provided with decompression angle (61) of slope, the cross-section of decompression angle (61) is followed the feed end and is enlarged gradually towards the discharge end.

2. The extrusion die for the cylinder material aluminum profile is characterized in that the outer periphery of the middle die core (6) is provided with side die cores (7) in a distributed manner, and one ends of the side die cores (7) close to the feeding holes (3) are provided with smooth auxiliary bridge sinking bridges (71).

3. The extrusion die for the cylinder material aluminum profile as claimed in claim 2, wherein the outer side of the auxiliary bridge sinking bridge (71) is provided with a first inclined feeding inner angle (72).

4. The extrusion die for the cylinder material aluminum profile as claimed in claim 3, 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.

5. The cylinder material aluminum profile extrusion die of claim 4, wherein the first feeding inner angle (72) is disposed opposite to the reaming section (32).

6. The cylinder material aluminum profile extrusion die according to claim 1, characterized in that one end of the middle die core (6) opposite to the discharge hole (4) is provided with a middle die head, one section of the middle die head connected with the middle die head of the middle die core (6) is provided with an inclined second feeding inner angle section (62), and the section of the second feeding inner angle section (62) is gradually enlarged from the feeding end to the discharge end.

7. The extrusion die for the cylinder material aluminum profile is 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.

8. The extrusion die for the aluminum profile of the cylinder material as recited in claim 7, wherein the opening of the discharge port (22) is enlarged in a stepped manner from the feed end to the discharge end.

9. The extrusion die for the cylinder material aluminum profile as claimed in claim 1, wherein the number of the feed holes (3) is four, the number of the discharge holes (4) is eight, and a plurality of the feed holes (3) and the discharge holes (4) are respectively arranged around the outer ring of the middle mold core (6).