CN213613381U

CN213613381U - Extrusion die

Info

Publication number: CN213613381U
Application number: CN202021266638.7U
Authority: CN
Inventors: 韩永辉; 宋小磊; 高朋垒
Original assignee: CITIC Bohai Aluminium Industries Holding Co Ltd
Current assignee: CITIC Bohai Aluminium Industries Holding Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-07-06
Anticipated expiration: 2030-07-02

Abstract

The utility model provides an extrusion die relates to the technical field that the photovoltaic frame was made. The extrusion die is provided with at least one forming space, each forming space comprises at least two shunting holes, a welding chamber and at least two die cavities, in each forming space, the shunting holes are communicated with the welding chamber, the die cavities are communicated with each other and communicated with the welding chamber, and at least one die cavity is opposite to one shunting hole; the shunting hole is arranged on an upper die of the extrusion die, and the welding chamber and the die cavity are arranged on a lower die of the extrusion die. In each forming space of the extrusion die, at least one die cavity is opposite to one shunting hole, no welding line is generated on the edge of the aluminum profile formed by the die cavity opposite to the shunting hole, the surface quality is high, and the improvement of the yield of the aluminum profile is facilitated.

Description

Extrusion die

Technical Field

The utility model relates to a photovoltaic frame makes the field, particularly, relates to an extrusion die.

Background

The aluminum profile is widely applied as a frame, wherein the aluminum profile has a particularly high requirement on the surface quality of the aluminum profile when used as a photovoltaic frame.

In the prior art, an aluminum profile is extruded by an extrusion die, and a die for producing the aluminum profile for the photovoltaic frame is generally a die with one single hole or seven split-flow holes, wherein the yield of the die with one single hole is low, and the yield of the die with two multi-hole is improved, but the surface quality of the produced aluminum profile is low and the yield is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an extrusion die to the aluminium alloy surface quality who solves extrusion die production among the prior art is low, technical problem that the yield is low.

The utility model provides an extrusion die is provided with at least one forming space, each forming space all includes at least two diffluence holes, a welding chamber and at least two die cavities, and in each forming space, the diffluence holes all communicate with the welding chamber, the die cavities communicate with each other and communicate with the welding chamber, at least one die cavity is right opposite to one of the diffluence holes;

the shunting hole set up in extrusion die's last mould, the welding chamber with the die cavity all set up in extrusion die's lower mould.

The utility model provides an extrusion die, in every shaping space, at least one die cavity is just right with one of them reposition of redundant personnel hole, can not produce the weld line by this edge with the fashioned aluminium alloy of the just right die cavity of reposition of redundant personnel hole, and surface quality is high, is favorable to improving the yield of aluminium alloy.

Furthermore, each molding space comprises a first die cavity and a second die cavity, the first die cavity is opposite to one of the shunting holes, and the first die cavity is used for molding the mounting edge of the aluminum profile.

In the technical scheme, the first die groove for forming the mounting edge of the aluminum profile is opposite to the shunting hole, so that the mounting edge formed by the first die groove cannot generate a welding line, and the surface quality is high.

Furthermore, the placing directions of the first cavities of the molding spaces are consistent, and the placing directions of the second cavities of the molding spaces are also consistent.

In the technical scheme, the placing directions of the four aluminum profiles respectively formed in the forming spaces are consistent, so that the aluminum profiles can be conveniently placed or subjected to other treatment in the follow-up process.

Further, the number of the molding spaces is four.

In the technical scheme, four aluminum profiles can be formed simultaneously in four forming spaces, so that four aluminum profiles can be formed simultaneously by one set of die, namely one aluminum profile is formed by four aluminum profiles, and the production efficiency is greatly improved.

Further, four forming spaces are arranged in a square shape.

In the technical scheme, the four forming spaces are arranged into a square shape and are compactly arranged, so that the size of the die is favorably reduced.

Further, the branch flow holes of the two molding spaces on the left side and the branch flow holes of the two molding spaces on the right side are symmetrically arranged.

In the technical scheme, the left and right symmetrical arrangement of the shunting holes of the two molding spaces above is realized, the left and right symmetrical arrangement of the shunting holes of the two molding spaces below is realized, the structure of the die is simplified, and the design efficiency of the die is improved.

Further, each molding space comprises three shunting holes.

In the technical scheme, the aluminum is supplied to the forming of one aluminum profile through the three shunting holes, the production efficiency of the extruding machine is high, the situation that the extruding force is too high due to too large extruding ratio can be avoided, and the yield is improved.

Furthermore, in the three shunting holes of each molding space, the cross section area of the shunting hole close to the axis of the upper die is small, and the cross section area of the shunting hole close to the edge of the upper die is large.

In the technical scheme, in each forming space, the cross section areas of the three shunting holes are inconsistent, the cross section area of the shunting hole close to the center of the upper die is smaller, the cross section area of the shunting hole close to the edge of the upper die is larger, and the flowing speed of the molten metal in the three shunting holes in each forming space is uniform, so that the surface quality of the formed aluminum profile is improved, and the yield is improved.

Further, in the three shunting holes of each molding space, the ratio of the largest cross-sectional area of the shunting hole to the smallest cross-sectional area of the shunting hole is less than 1.2.

In the technical scheme, the flow velocity of the molten metal in the three shunting holes of each forming space is uniform, so that the formed aluminum profile has high surface quality and yield.

Furthermore, the upper die is provided with a first positioning hole and a second positioning hole, and the central line of the first positioning hole and the central line of the second positioning hole are not coplanar with the axis of the upper die; the lower die is provided with a third positioning hole and a fourth positioning hole which respectively correspond to the first positioning hole and the second positioning hole;

the extrusion die further comprises two positioning pins, wherein one positioning pin is arranged in the first positioning hole and the third positioning hole, and the other positioning pin is arranged in the second positioning hole and the fourth positioning hole.

In the technical scheme, the two positioning pins are asymmetric relative to the axis of the extrusion die, so that the condition of assembly error during the assembly of the upper die and the lower die can be avoided, and the assembly efficiency can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a feed end of an extrusion die provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of a discharge end of an extrusion die provided in an embodiment of the present invention;

fig. 3 is a schematic structural view of a feed end of an upper die of an extrusion die according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a discharge end of an upper die of an extrusion die according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a feed end of a lower die of an extrusion die according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a discharge end of a lower die of an extrusion die provided in an embodiment of the present invention.

Description of reference numerals:

100-upper mould; 110-a shunt hole; 120-a shunt bridge; 130-a first locating hole; 140-a second positioning hole;

200-lower die; 210-a welding chamber; 220-a first die cavity; 230-a second die cavity; 240-third positioning hole; 250-a fourth positioning hole;

300-positioning pins;

400-bolt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a feeding end of an extrusion die provided in this embodiment, and fig. 2 is a schematic structural diagram of a discharging end of the extrusion die provided in this embodiment.

It should be noted that, herein, the "feeding end" refers to an end at which the material is input, and the "discharging end" refers to an end at which the material or the product is output.

The embodiment provides an extrusion die, as shown in fig. 1 and fig. 2, the extrusion die is provided with at least one forming space, each forming space includes at least two shunting holes 110, a welding chamber 210 and at least two die slots, and in each forming space, the shunting holes 110 are communicated with the welding chamber 210, the die slots are communicated with each other and communicated with the welding chamber 210, and at least one die slot is opposite to one shunting hole 110; the shunting hole 110 is arranged on the upper die 100 of the extrusion die, and the welding chamber 210 and the die cavity are arranged on the lower die 200 of the extrusion die.

It should be noted that "facing" means that the entire mold cavity is opposite to the same tap hole 110.

In the extrusion die provided by the embodiment, in each forming space, at least one die cavity is opposite to one of the shunting holes 110, and the edge of the aluminum profile formed by the die cavity opposite to the shunting hole 110 cannot generate a welding line, so that the surface quality is high, and the yield of the aluminum profile is improved.

Specifically, in the present embodiment, the upper mold 100 and the lower mold 200 each have a cylindrical shape.

Fig. 5 is a schematic structural view of a feeding end of a lower die 200 of the extrusion die provided in this embodiment, and fig. 6 is a schematic structural view of a discharging end of the lower die 200 of the extrusion die provided in this embodiment.

In this embodiment, as shown in fig. 2, 5 and 6, each molding space includes a first cavity 220 and a second cavity 230, the first cavity 220 faces one of the diversion holes 110, and the first cavity 220 is used for molding the mounting edge of the aluminum profile. In this arrangement, the first cavity 220 for forming the mounting edge of the aluminum profile is aligned with the tap hole 110, so that no weld line is formed on the mounting edge formed by the first cavity 220, and the mounting edge has high surface quality.

More specifically, in the present embodiment, the cross-sections of the first cavity 220 and the second cavity 230 are both "L" shaped.

In this embodiment, the first cavities 220 of the forming spaces are arranged in the same direction, and the second cavities 230 of the forming spaces are arranged in the same direction. Under the arrangement mode, the arrangement directions of the four aluminum profiles respectively formed by the forming spaces are consistent, and the aluminum profiles can be conveniently arranged or subjected to other treatment after the four aluminum profiles are output from the discharge end of the lower die 200.

In this embodiment, as shown in fig. 1 and 2, the number of molding spaces is four. By using the extrusion die, four aluminum profiles can be simultaneously formed in four forming spaces, so that four aluminum profiles can be simultaneously formed by one die, namely four aluminum profiles are formed, and the production efficiency is greatly improved.

In this embodiment, the four molding spaces are arranged in a square shape. The four molding spaces are arranged in a square shape and are compactly arranged, thereby being beneficial to reducing the volume of the mold.

It should be noted that in other embodiments of the present application, the number of forming spaces is not limited to four, for example: the number of the molding spaces may be three, and specifically, the three molding spaces are arranged in a triangle.

Fig. 3 is a schematic structural diagram of a feeding end of an upper die 100 of the extrusion die provided in this embodiment, and fig. 4 is a schematic structural diagram of a discharging end of the upper die 100 of the extrusion die provided in this embodiment.

In the present embodiment, as shown in fig. 1, 3 and 4, the diversion holes 110 of the two molding spaces on the left are symmetrically arranged with the diversion holes 110 of the two molding spaces on the right. The shunting holes 110 of the two molding spaces positioned above are arranged in a bilateral symmetry manner, the shunting holes 110 of the two molding spaces positioned below are arranged in a bilateral symmetry manner, and the structure of the die is simplified, so that the design flow of the die is simplified, and the design efficiency of the die is improved.

In this embodiment, and continuing with fig. 1, 3 and 4, each molding space includes three diverter holes 110. So set up the shaping that makes an aluminium alloy and supply aluminium by three reposition of redundant personnel hole 110, the production efficiency of extruder is high, and can avoid the extrusion to compare the too big emergence that arouses the too high circumstances of extrusion force etc to be favorable to improving the yield of aluminium alloy.

It should be noted that in other embodiments of the present application, the number of the diversion holes 110 in one molding space is not limited to three, for example: each molding space includes four manifold holes 110. That is, the present application does not specifically limit the number of the tap holes 110 per molding space as long as the yield of the aluminum profiles can be improved.

Specifically, in the present embodiment, the three diversion holes 110 in each molding space are arranged in an inverted triangle.

Specifically, in this embodiment, in each molding space, the width of the shunting bridges 120 between adjacent shunting holes 110 is 12-13mm, and the mold core is disposed at the intersection of the three shunting bridges 120.

Specifically, in the present embodiment, of the three diversion holes 110 of each molding space, the diversion hole 110 near the axis of the upper mold 100 has a small cross-sectional area, and the diversion hole 110 near the edge of the upper mold 100 has a large cross-sectional area. In the technical scheme, in each forming space, the cross section areas of the three shunting holes 110 are inconsistent, the cross section area of the shunting hole 110 close to the center of the upper die 100 is smaller, and the cross section area of the shunting hole 110 close to the edge of the upper die 100 is larger, so that the flowing speed of molten metal in the three shunting holes 110 in each forming space is uniform, the surface quality of the formed aluminum profile is improved, and the yield is improved.

Specifically, in the present embodiment, in the three diversion holes 110 of each molding space, the ratio of the largest cross-sectional area of the diversion hole 110 to the smallest cross-sectional area of the diversion hole 110 is less than 1.2. The arrangement ensures that the flow velocity of the molten metal in the three shunting holes 110 of each forming space is relatively uniform, so that the formed aluminum profile has high surface quality and high yield.

Specifically, in the present embodiment, as shown in fig. 4 to 6, the upper die 100 is provided with the first positioning hole 130 and the second positioning hole 140, and the center line of the first positioning hole 130 and the center line of the second positioning hole 140 are not coplanar with the axis of the upper die 100; the lower mold 200 is provided with a third positioning hole 240 and a fourth positioning hole 250, which correspond to the first positioning hole 130 and the second positioning hole 140, respectively; the extrusion die further includes two positioning pins 300, wherein one positioning pin 300 is installed in the first positioning hole 130 and the third positioning hole 240, and the other positioning pin 300 is installed in the second positioning hole 140 and the fourth positioning hole 250. Under the arrangement mode, the two positioning pins 300 are asymmetric relative to the axis of the extrusion die, namely, the assembly positions of the upper die 100 and the lower die 200 are unique, so that the condition of dislocation assembly during assembly of the upper die 100 and the lower die 200 can be avoided, and the assembly speed can be increased and the assembly efficiency can be improved.

In this embodiment, the upper mold 100 and the lower mold 200 are connected by a fastener.

Specifically, as shown in fig. 2, the upper mold 100 and the lower mold 200 are coupled to each other by bolts 400.

It should be noted that, in other embodiments of the present application, other fasteners may be used to connect the upper die 100 and the lower die 200, and the present application does not limit the specific form of the fasteners used as long as the fasteners can be firmly connected.

Finally, it is further noted that, herein, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An extrusion die is characterized in that at least one forming space is arranged, each forming space comprises at least two shunting holes (110), a welding chamber (210) and at least two die cavities, in each forming space, the shunting holes (110) are communicated with the welding chamber (210), the die cavities are communicated with each other and are communicated with the welding chamber (210), and at least one die cavity is opposite to one shunting hole (110);

the flow distribution hole (110) is formed in an upper die (100) of the extrusion die, and the welding chamber (210) and the die cavity are formed in a lower die (200) of the extrusion die.

2. The extrusion die of claim 1, wherein each forming space comprises a first die cavity (220) and a second die cavity (230), the first die cavity (220) is opposite to one of the shunting holes (110), and the first die cavity (220) is used for forming a mounting edge of an aluminum profile.

3. The extrusion die of claim 2, wherein the first cavities (220) of the molding spaces are arranged in the same direction, and the second cavities (230) of the molding spaces are arranged in the same direction.

4. Extrusion die according to any one of claims 1-3, characterised in that the number of shaping spaces is four.

5. The extrusion die of claim 4, wherein four of the molding spaces are in a square arrangement.

6. Extrusion die according to claim 5, characterised in that the diverter holes (110) of the two moulding spaces on the left are arranged symmetrically to the diverter holes (110) of the two moulding spaces on the right.

7. Extrusion die according to any one of claims 1-3, wherein each of the molding spaces comprises three of the portholes (110).

8. The extrusion die according to claim 7, wherein of the three diversion holes (110) of each of the molding spaces, the diversion hole (110) near the axis of the upper die (100) has a small cross-sectional area, and the diversion hole (110) near the edge of the upper die (100) has a large cross-sectional area.

9. Extrusion die according to claim 8, wherein the ratio of the largest cross-sectional area of the portholes (110) to the smallest cross-sectional area of the portholes (110) is less than 1.2.

10. The extrusion die of any one of claims 1 to 3, wherein the upper die (100) is provided with a first positioning hole (130) and a second positioning hole (140), and a center line of the first positioning hole (130) and a center line of the second positioning hole (140) are not coplanar with an axis of the upper die (100); the lower die (200) is provided with a third positioning hole (240) and a fourth positioning hole (250), and the third positioning hole and the fourth positioning hole respectively correspond to the first positioning hole (130) and the second positioning hole (140);

the extrusion die further comprises two positioning pins (300), wherein one positioning pin (300) is installed in the first positioning hole (130) and the third positioning hole (240), and the other positioning pin (300) is installed in the second positioning hole (140) and the fourth positioning hole (250).