CN215614152U

CN215614152U - Hot extrusion aluminum profile die

Info

Publication number: CN215614152U
Application number: CN202121341074.3U
Authority: CN
Inventors: 白京波
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-25
Anticipated expiration: 2031-06-16

Abstract

The utility model provides a hot extrusion aluminum profile die, and relates to the technical field of dies. The upper die and the lower die are connected in a matched mode, the lower die comprises a feeding chamber, a die cavity is formed in the center of the feeding chamber, a forming working belt matched with the profile of the profile is arranged on the lower die and located in the die cavity, the forming working belt comprises a first working belt and a second working belt, the first working belt and the second working belt surround the profile of the profile, the length of the first working belt relative to the feeding direction is larger than that of the second working belt relative to the feeding direction, and the length of the second working belt relative to the feeding direction is equal to that of the third working belt relative to the feeding direction.

Description

Hot extrusion aluminum profile die

Technical Field

The utility model relates to the technical field of dies, in particular to a hot extrusion aluminum profile die.

Background

The section bar is a solid straight bar or a pipe cavity which is formed by plastic processing and has a certain section shape and size. The section bar has various types and specifications and wide application, and plays a very important role in extrusion production. The material has certain appearance size, certain shape of cross section and certain mechanical and physical properties. The section bar can be used independently and can be further processed into other manufactured products, and is commonly used for building structures and manufacturing and installation.

Hot extrusion is a common manufacturing process for manufacturing sectional materials at present, is the earliest extrusion forming technology in several extrusion processes, and carries out various extrusion forming on metals at a hot forging temperature by virtue of the characteristic of good plasticity of materials. The method is mainly used for manufacturing long pieces, profiles, pipes, bars, various machine parts and the like with common equal sections.

In the prior art, when an aluminum profile is subjected to hot extrusion molding, because a large plane of the profile is easy to bulge during molding, the plane gap of the profile exceeds the standard, the profile reaches the standard through a subsequent die repairing process, and the production cost is high; therefore, the prior art has yet to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hot extrusion aluminum profile die, which can provide a corresponding solution for the problems and has the beneficial effects of reducing the overproof rate of profile planes and reducing the production cost.

The embodiment of the utility model is realized by the following steps:

the embodiment of the application provides a hot extrusion aluminium alloy mould, it is including matching each other and connecting mould and lower mould, the lower mould includes the feeding chamber, the die cavity has been seted up at the center of feeding chamber, the lower mould is located the die cavity and is provided with the shaping work area anastomotic with the section bar profile, the shaping work area includes first work area and second work area, first work area and second work area enclose into the profile shape of section bar, first work area is greater than the length of second work area for feed direction's length, the second work area equals for feed direction's length and third work area for feed direction's length.

In some embodiments of the present invention, the difference in length between the first working belt and the second working belt with respect to the feeding direction is 0.1mm to 10 mm.

In some embodiments of the utility model, the cross-sectional shape of the mold cavity matches the cross-sectional shape of the forming work belt, and the cross-sectional dimension of the mold cavity is greater than the cross-sectional dimension of the forming work belt.

The cun of die cavity is greater than the cross-sectional dimension in shaping work area for the section bar outer wall after being extruded can not take place to touch with the inside wall of die cavity, has certain clearance, thereby ensures the roughness and the smoothness on section bar surface.

In some embodiments of the utility model, a pre-concave working band is further included, said pre-concave working band being in communication with said mold cavity.

The arrangement of the pre-concave working belt can effectively prevent the large plane of the section bar from generating plane clearance exceeding standards, and the flatness of the section bar is improved.

In some embodiments of the utility model, the upper die is provided with a completely penetrating shunting hole, the shunting hole corresponds to the feeding chamber, a die core corresponding to the molding working tape is arranged at the center of the shunting hole of the upper die, and the die core and the inner wall of the shunting hole are connected with a shunting bridge.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

the embodiment of the utility model comprises an upper die and a lower die which are matched with each other and connected, and the lower die is extruded by the upper die, so that the material passes through the lower die to finish the forming of the aluminum profile; the lower die comprises a feeding chamber, and the feeding chamber is used for extruding and fusing the aluminum material passing through the upper die into a whole again to finally form the shape of the section; the center of the feeding chamber is provided with a die cavity, the lower die is positioned in the die cavity and is provided with a molding working belt matched with the profile of the section, and under the extrusion of an extruder, the material is formed into the shape of the section through the molding working belt and then is conveyed to the outside of the lower die after passing through the die cavity; the forming working belt comprises a first working belt, a second working belt and a third working belt, wherein the first working belt, the second working belt and the third working belt enclose the outline shape of the profile, so that the heated material is extruded to form a proper profile by being molded with the three working belts; the length of the first working belt relative to the feeding direction is larger than that of the second working belt relative to the feeding direction, the large surface can not generate bulges when the section is formed like the prior art, the section plane gap does not exceed the standard, the on-machine qualification rate of the die is improved, meanwhile, the production cost is also reduced, the lengths of the second working belt and the third working belt relative to the joint of the feeding direction are equal, the second working belt and the third working belt are connected at the right angle of the joint, the root line can be better prevented from being generated on the surface of the section, the smoothness of the surface of the section can not be influenced, and the surface of the section can not be polished in subsequent surface spraying. Therefore, the embodiment of the utility model has the beneficial effects of reducing the overproof rate of the plane of the section bar and reducing the production cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic installation diagram of an upper die and a lower die provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a lower mold according to an embodiment of the present invention;

FIG. 3 is a schematic view of an upper die provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of a lower die with a pre-concave working tape according to an embodiment of the present invention;

FIG. 5 is a schematic view of the distribution holes provided in the embodiment of the present invention;

FIG. 6 is a schematic view of the interior of an upper mold according to an embodiment of the present invention;

FIG. 7 is a schematic view of a pre-concave working band provided by an embodiment of the present invention;

FIG. 8 is a schematic view of a lower die with two sets of molding belts.

Icon: 100-upper die, 110-diversion hole, 120-die core, 200-lower die, 210-feeding chamber, 220-die cavity, 230-forming working band, 231-first working band, 2311-pre-concave working band, 232-second working band and 233-third working band.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 8, the present embodiment provides a hot extrusion aluminum profile mold, which includes an upper mold 100 and a lower mold 200 that are connected to each other in a matching manner, and when in use, an extruder pushes an aluminum material to pass through a diversion hole 110 of the upper mold 100 and then extrudes the lower mold 200, so that the aluminum profile molding is completed by the material passing through the lower mold 200; the lower die 200 comprises a feeding chamber 210, and the feeding chamber 210 is used for performing secondary welding on the aluminum material passing through the diversion holes 110 to form a whole; a die cavity 220 is formed in the center of the feeding chamber 210, a molding working belt 230 matched with the profile of the profile is arranged on the die cavity 220 of the lower die 200, and under the extrusion of an extruder, the material is formed into the profile with a specified shape through the molding working belt 230 and then is conveyed to the outside of the lower die 200 through the die cavity 220; the forming band 230 comprises a first band 231 and a second band 232, the first band 231 is located at the outer side of the profile, the first band 231, the second band 232 and the third band 233 enclose the profile shape of the profile, so that the heated material is extruded to form a proper profile by being extruded with the first band 231, the second band 232 and the third band 233; the length of the first working belt 231 relative to the feeding direction is larger than that of the second working belt 232 relative to the feeding direction, so that a large plane can be prevented from being protruded when the section is formed, the plane gap of the section does not exceed the standard in the prior art, the on-machine qualification rate of the die is improved, and meanwhile, the production cost is also reduced. The lengths of the joints of the second working belt 232 and the third working belt 233 in the feeding direction are equal, and the joints are directly connected, so that the generation of root lines on the surface of the section can be better avoided, the smoothness of the surface of the section cannot be influenced, and the surface of the section cannot be polished in the subsequent surface spraying. Therefore, the embodiment of the utility model has the beneficial effects of reducing the overproof rate of the plane of the section bar and reducing the production cost.

In some embodiments of the present invention, the difference between the lengths of the first working belt 231 and the second working belt 232 with respect to the feeding direction is 0.1mm to 10 mm. First working tape 231 and second working tape 232 design according to the thickness of the fashioned section bar of will, only need guarantee that the length of first working tape 231 is longer than second working tape 232 can, in this embodiment, first working tape 231 length is 1mm longer than the length of second working tape 232 for during the aluminium alloy shaping, the big plane of section bar can not produce the arch, and the plane clearance of section bar can not exceed standard, improves the manufacturing quality of aluminium alloy.

In some embodiments of the present invention, the cross-sectional shape of the mold cavity 220 matches the cross-sectional shape of the forming work belt 230, and the cross-sectional dimension of the mold cavity 220 is greater than the cross-sectional dimension of the forming work belt 230. In the above embodiment, as shown in fig. 1, the mold cavity 220 communicates with the molding work belt 230 and extends to the right side of the lower mold 200, so that the profile can be conveniently conveyed out; the mold cavities 220 have a size greater than the cross-sectional dimension of the forming band 230. The material is carried through die cavity 220 after being moulded by shaping band 230, because the size that the section bar is still slightly littleer than shaping band 230, therefore the section bar is when passing through, and its outer wall has certain clearance with the inner wall of die cavity 220, can not take place to touch to ensure the roughness and the smoothness of section bar surface.

In some embodiments of the present invention, the first working band 231 further comprises a pre-concave working band 2311, said pre-concave working band 2311 being in communication with said mold cavity 220. In actual production, the material of putting into is generally cylindric, consequently is provided with concave work area 2311 in advance, plays the effect of predeformation, can effectually prevent that the big plane of section bar from taking place to buckle, promotes the roughness of section bar. In the above embodiments, as shown in fig. 4 and 7, the pre-concave working tape 2311 has a certain curvature, so that the plane of the profile after manufacturing and molding is closer to a straight line, and the flatness is better.

In some embodiments of the present invention, as shown in fig. 1 and 7, the upper mold 100 is provided with a diversion hole 110 completely penetrating therethrough, the diversion hole 110 corresponds to the feeding chamber 210, a mold core 120 corresponding to the molding work tape 230 is disposed at the center of the diversion hole 110 of the upper mold 100, and a diversion bridge 130 is connected between the mold core 120 and the inner wall of the diversion hole 110. The material enters the upper die 100 from the shunting holes 110 and then enters the feeding chamber 210, and then under the extrusion of the die core 120, the material starts to be extruded and formed by the forming working belt 230; the arrangement of the shunting holes 110 can disperse pressure when the upper die 100 extrudes the lower die 200, so that the die is prevented from being damaged due to large pressure; the mold core 120 is connected to the inner wall of the distribution hole 110 by the distribution bridges 130, so that the mold core 120 is more stably extruded.

It should be noted that, in some other embodiments, as shown in fig. 8, two sets of molding working tapes 230 may be further disposed on the same set of upper mold 100 and lower mold 200, and the two sets of molding working tapes 230 are disposed in central symmetry, so that two sets of profiles can be extruded simultaneously, and the processing efficiency is improved; meanwhile, the central symmetry arrangement ensures that the discharging directions of the aluminum materials are consistent, thereby increasing the yield and reducing the labor intensity.

In summary, the embodiment of the present invention provides a hot extrusion aluminum profile mold, which includes an upper mold 100 and a lower mold 200 that are cooperatively connected with each other, and when in use, the upper mold 100 is pushed by an extruder to extrude the lower mold 200, so that the material passes through the lower mold 200 to complete the aluminum profile molding; the lower mold 200 includes a feeding chamber 210, and the feeding chamber 210 is used for temporarily placing the heated material entering from the upper mold 100; a die cavity 220 is formed in the center of the feeding chamber 210, a molding working belt 230 matched with the profile of the profile is arranged on the die cavity 220 of the lower die 200, and under the extrusion of the upper die 100, the material is formed into the profile with a specified shape through the molding working belt 230 and then is conveyed to the outside of the lower die 200 through the die cavity 220; the forming band 230 comprises a first band 231 and a second band 232, the first band 231 is located at the outer side of the profile, the first band 231, the second band 232 and the third band 233 enclose the profile shape of the profile, so that the heated material is extruded to form a proper profile by being extruded with the first band 231, the second band 232 and the third band 233; the length of the first working belt 231 relative to the feeding direction is larger than that of the second working belt 232 relative to the feeding direction, so that a large plane can be prevented from being protruded when the section is formed, the plane gap of the section does not exceed the standard in the prior art, the on-machine qualification rate of the die is improved, and meanwhile, the production cost is also reduced. The second working belt 232 and the third working belt 233 are equal in length relative to the feeding direction and are directly connected at the junction, so that the generation of a root line on the surface of the profile can be better avoided, the smoothness of the surface of the profile cannot be influenced, and the surface of the profile cannot be polished in subsequent surface spraying. Therefore, the embodiment of the utility model has the beneficial effects of reducing the overproof rate of the plane of the section bar and reducing the production cost.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a hot extrusion aluminium alloy mould which characterized in that, includes to cooperate each other and connects last mould and lower mould, the lower mould includes the feed chamber, the die cavity has been seted up at the center of feed chamber, the lower mould is located the die cavity is provided with the shaping work area that coincide with the section bar profile, the shaping work area includes first work area, second work area and third work area, first work area, second work area and third work area enclose into the profile shape of section bar, first work area is greater than for the length of feed direction second work area for the length of feed direction, the length of second work area for the feed direction with the length of third work area for the feed direction equals.

2. A hot extrusion aluminum profile die according to claim 1, wherein the difference in length of the first working belt and the second working belt with respect to the feeding direction is 0.1mm to 10 mm.

3. A hot extrusion aluminum profile die as claimed in claim 1, wherein the cross-sectional shape of the die cavity matches the cross-sectional shape of the molding work belt, and the cross-sectional size of the die cavity is larger than the cross-sectional size of the molding work belt.

4. A hot extrusion aluminum profile die as set forth in claim 1, wherein the first working band further comprises a pre-concave working band, the pre-concave working band being in communication with the die cavity.

5. The hot extrusion aluminum profile die according to claim 1, wherein the upper die is provided with a shunting hole which completely penetrates through the upper die, the shunting hole corresponds to the feeding chamber, a die core corresponding to the forming work zone is arranged at the center of the upper die, which is positioned at the shunting hole, and a shunting bridge is connected with the inner wall of the die core and the shunting hole.