Extrusion die for zinc-magnesium alloy

Abstract

The utility model discloses an extrusion die for zinc-magnesium alloy, which relates to the technical field of zinc-magnesium alloy processing, and comprises a first die and a second die, a positioning component is arranged in the first die, the positioning component comprises a supporting hole, a positioning column is connected in the supporting hole, and the positioning column is arranged in the second die. And an anti-bending column and a cable-stayed supporting plate are fixed in the positioning column, one side of the outer surface of the positioning column is coated with a wear-resistant layer, and a mounting plate is fixed to one side of the positioning column. According to the utility model, through the arrangement of the positioning assembly, the positioning column penetrates through the whole first mold and the second mold and is longer in size, so that when the two molds are assembled, the positioning column can be in contact with the second mold before the two mold cores, and the first mold is guided through the positioning column in the assembling process; therefore, the phenomenon that the first mold core and the second mold core collide with the cavity and are damaged is effectively avoided; and collision and shrinkage of the cavity and the two mold cores in the assembling process are avoided, and the mold is high in structural strength and not prone to bending deformation and falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of zinc-magnesium alloy processing, in particular to an extrusion die for zinc-magnesium alloy. Background Art

[0002] Zinc-magnesium alloy has good corrosion resistance, plasticity and thermal conductivity, and has low density. It is a lightweight and high-strength material and is widely used in aerospace, automobile manufacturing, electronic equipment and other fields. Zinc-magnesium profile is one of the products made of zinc-magnesium alloy, which is mainly extruded by extrusion die with press.

[0003] Existing zinc-magnesium alloy extrusion dies are usually composed of two or more dies, which are positioned during the assembly process through positioning columns to prevent deflection of a certain die from affecting the shape of the zinc-magnesium profile. However, the positioning columns are usually short, so during the assembly process, the mold core will enter the other mold before the positioning columns, resulting in the mold core possibly colliding with the cavity of another mold during the assembly process, causing the mold core and the cavity to be damaged by the collision and affecting the accuracy. Although this phenomenon can be avoided by lengthening the positioning columns, the fixing surface between the positioning columns and the mold is only a circular surface after the positioning columns are lengthened. The fixing surface is small and the positioning columns are poor, resulting in the positioning columns being easily bent and deformed after the mold is disassembled and assembled several times, and even the fixing surface breaking and falling off. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an extrusion die for zinc-magnesium alloy to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extrusion die for zinc-magnesium alloy, comprising a first die and a second die, a positioning assembly is arranged inside the first die, and the positioning assembly comprises a support hole, a positioning column is connected inside the support hole, and a bending-resistant column and a diagonal support plate are fixed inside the positioning column respectively, a wear-resistant layer is coated on one side of the outer surface of the positioning column, a mounting plate is fixed on one side of the positioning column, and bolts are passed through one side of the mounting plate, and a positioning hole is opened on one side of the second die.

[0006] By adopting the above technical solution, the positioning post penetrates through the entire first mold and the second mold and has a relatively long dimension. Therefore, when assembling the two molds, the positioning post will contact the second mold before the two mold cores, and during the assembly process, the first mold is guided by the positioning post, thus effectively avoiding the phenomenon that the first mold core and the second mold core collide with the cavity and are damaged. At the same time, the surface on the left side of the positioning post has a self-lubricating effect through the Teflon wear-resistant layer, thereby reducing the wear between the positioning post and the positioning block to extend the service life of the structure. Also, since the positioning post penetrates through the first mold, the contact surface between the positioning post and the first mold is relatively large, avoiding the separation and detachment of the contact surface between the two. Moreover, the bending-resistant post and the positioning post cooperate to form an arch structure, and a triangular diagonal tension structure is formed between the positioning post and the diagonal tension support plate, effectively increasing the bending resistance and compressive resistance of the positioning post, thereby extending the service life of the positioning post.

[0007] Further, the cross-section of the bending-resistant post is annular.

[0008] By adopting the above technical solution, an arch structure is formed by the cooperation of the bending-resistant post and the positioning post, effectively increasing the bending resistance and compressive resistance of the positioning post, thereby extending the service life of the positioning post.

[0009] Further, there are three groups of diagonal tension support plates, four in a group, and the four diagonal tension support plates are distributed in an annular array.

[0010] By adopting the above technical solution, a triangular diagonal tension structure is formed between the positioning post and the diagonal tension support plate, effectively increasing the bending resistance and compressive resistance of the positioning post, thereby extending the service life of the positioning post.

[0011] Further, there are three positioning posts, three bending-resistant posts, three mounting plates, three wear-resistant layers, three support holes, and three positioning holes, and the three positioning posts, three bending-resistant posts, three mounting plates, three wear-resistant layers, three support holes, three positioning holes, and three groups of diagonal tension support plates are distributed in a "pin" shape.

[0012] By adopting the above technical solution, by increasing the number of positioning posts, bending-resistant posts, wear-resistant layers, diagonal tension support plates, support frames, and positioning blocks, the structural strength is further increased.

[0013] Further, the wear-resistant layer is a Teflon coating.

[0014] By adopting the above technical solution, the surface on the left side of the positioning post has a self-lubricating effect through the Teflon wear-resistant layer, thereby reducing the wear between the positioning post and the positioning block to extend the service life of the structure.

[0015] Further, both the positioning post and the mounting plate are detachably connected to the first mold by bolts, and the positioning post is slidably connected to the positioning hole.

[0016] By adopting the above technical scheme, when the positioning column, anti-bending column, wear-resistant layer and diagonal brace plate are damaged after long-term use, the staff can unscrew the bolts to end the limitation of the mounting plate. After that, the staff can directly take out the positioning column, anti-bending column, mounting plate, wear-resistant layer and diagonal brace plate for replacement, and then tighten them with bolts.

[0017] Furthermore, the first mold is internally connected to a first mold core and a second mold core through a shunt bridge, and the second mold is connected to one side of the first mold. A mold cavity is provided inside the second mold, and a zinc-magnesium profile is arranged inside the mold cavity.

[0018] By adopting the above technical solution, the zinc-magnesium alloy raw material rod enters the first mold after being extruded, and the zinc-magnesium alloy raw material rod is diverted by the diverter bridge and the first mold core and the second mold core are supported. Then, the zinc-magnesium alloy raw material rod is extruded into zinc-magnesium profiles through the cooperation of the mold cavity, the first mold core and the second mold core.

[0019] Furthermore, the three positioning posts, the wear-resistant layer, the support hole and the positioning hole are all square, and one of the positioning posts, the wear-resistant layer, the support hole and the positioning hole is inclined at forty-five degrees.

[0020] By adopting the above technical solution, a positioning column, a wear-resistant layer, a supporting hole and a positioning hole are set at a 45-degree inclination. Therefore, before assembly, the staff needs to align the inclined positioning column with the inclined positioning hole, and match the other two non-inclined positioning columns with the other two non-inclined positioning holes. If they are not matched, they cannot be installed, which has an anti-mistake effect.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] 1. The utility model sets a positioning assembly, and the positioning column runs through the entire first mold and the second mold, and has a relatively long size. Therefore, when assembling the two molds, the positioning column will contact the second mold before the two mold cores, and the first mold is guided by the positioning column during the assembly process, thereby effectively avoiding the first mold core and the second mold core from being damaged by colliding with the cavity. At the same time, the Teflon wear-resistant layer makes the surface on the left side of the positioning column have a self-lubricating effect, thereby reducing the wear between the positioning column and the positioning block to extend the service life of the structure. At the same time, because the positioning column runs through the first mold, the contact surface between the positioning column and the first mold is larger, avoiding the separation and falling off of the contact surface between the two. The anti-bending column cooperates with the positioning column to form an arch structure, and the positioning column and the inclined support plate form a triangular inclined structure, which effectively increases the bending and pressure resistance of the positioning column, thereby extending the service life of the positioning column; avoiding the cavity and the two mold cores from colliding and shrinking during the assembly process, and the high structural strength is not easy to bend, deform or fall off;

[0023] 2. The utility model provides a positioning component, a mounting plate and bolts. When the positioning column, the anti-bending column, the wear-resistant layer and the diagonal brace plate are damaged after long-term use, the positioning of the mounting plate can be stopped by unscrewing the bolts. After that, the positioning column, the anti-bending column, the mounting plate, the wear-resistant layer and the diagonal brace plate can be directly taken out and replaced together, which is convenient for replacing the damaged structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the second mold structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the first mold structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the positioning column structure of the utility model;

[0027] Figure 4 For the utility model Figure 3 A magnified view of the structure at A;

[0028] Figure 5 This is a schematic diagram of the explosion structure of the first mold of the utility model.

[0029] In the figure: 1. first mold; 2. second mold; 3. cavity; 4. first mold core; 5. second mold core; 6. diverter bridge; 7. zinc-magnesium profile; 8. positioning assembly; 801. positioning column; 802. anti-bending column; 803. mounting plate; 804. bolt; 805. wear-resistant layer; 806. diagonal support plate; 807. support hole; 808. positioning hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0031] The following describes an embodiment of the utility model based on its overall structure.

[0032] Embodiment 1:

[0033] An extrusion die for zinc-magnesium alloy, such as Figure 1-Figure 4 As shown, it includes a first mold 1 and a second mold 2 , and a positioning component 8 is arranged inside the first mold 1 .

[0034] Specifically, the positioning assembly 8 includes a support hole 807 opened on one side of the first mold 1, and a positioning column 801 is connected inside the support hole 807. The positioning column 801 runs through the entire first mold 1 and the second mold 2, and will contact the second mold 2 before the two mold cores, thereby effectively preventing the first mold core 4 and the second mold core 5 from being damaged by colliding with the cavity 3;

[0035] The three positioning columns 801, the wear-resistant layer 805, the support hole 807 and the positioning hole 808 are all square in shape. The anti-bending column 802 and the diagonal support plate 806 are fixed inside the positioning column 801 respectively. The cross section of the anti-bending column 802 is circular. The anti-bending column 802 cooperates with the positioning column 801 to form an arch structure, and a triangular diagonal structure is formed between the positioning column 801 and the diagonal support plate 806, which effectively increases the anti-bending and anti-compression properties of the positioning column 801, thereby extending the service life of the positioning column 801.

[0036] A positioning hole 808 is provided on one side of the second mold 2, and a positioning column 801 is slidably connected to the positioning hole 808. Before the first mold 1 and the second mold 2 are combined, the first mold 1 is guided by the positioning column 801 and the positioning hole 808 to prevent the first mold 1 or the second mold 2 from bouncing and causing the first mold core 4 and the second mold core 5 to collide with the cavity 3 and be damaged; one side of the outer surface of the positioning column 801 is coated with a wear-resistant layer 805, and the wear-resistant layer 805 is a Teflon coating. The Teflon wear-resistant layer 805 makes the surface on the left side of the positioning column 801 have a self-lubricating effect, thereby reducing the wear between the positioning column 801 and the positioning block to extend the service life of the structure;

[0037] A mounting plate 803 is fixed to one side of the positioning column 801, and a bolt 804 passes through one side of the mounting plate 803. The positioning column 801 and the mounting plate 803 are both detachably connected to the first mold 1 through the bolt 804. The bolt 804 can be unscrewed to end the limiting of the mounting plate 803, and then the staff can directly take out the damaged structure for replacement.

[0038] See also Figure 1 , Figure 2 and Figure 5 In the above embodiment, the first mold 1 is connected to the first mold core 4 and the second mold core 5 respectively through the shunt bridge 6, the second mold 2 is connected to one side of the first mold 1, the second mold 2 is provided with a cavity 3, and the cavity 3 is provided with a zinc-magnesium profile 7, so as to facilitate extrusion of the zinc-magnesium alloy raw material rod into the zinc-magnesium profile 7.

[0039] See also Figure 1-Figure 4, in the above embodiment, there are three sets of diagonal bracing plates 806, with four in each set, and the four diagonal bracing plates 806 are distributed in an annular array. There are three positioning columns 801, three bending-resistant columns 802, three mounting plates 803, three wear-resistant layers 805, three support holes 807, and three positioning holes 808. The three positioning columns 801, three bending-resistant columns 802, three mounting plates 803, three wear-resistant layers 805, three support holes 807, three positioning holes 808, and three sets of diagonal bracing plates 806 are all distributed in a "pin" shape, and the structural strength is further increased by increasing the quantity.

[0040] Embodiment Two:

[0041] Based on the above Embodiment One, although by setting the positioning component 8, it is possible to avoid the cavity 3 and the two mold cores from bumping and shrinking during the assembly process, and the structural strength is high and it is not easy to bend, deform, or fall off; however, if the installation direction is incorrect, it is still easy to have the phenomenon that the cavity 3 bumps against the two mold cores; now, by setting the positioning column 801, the wear-resistant layer 805, the support hole 807, and the positioning hole 808, it is possible to avoid incorrect installation directions.

[0042] Refer to Figure 1 , Figure 3 and Figure 5 , in the above embodiment, one positioning column 801, the wear-resistant layer 805, the support hole 807, and the positioning hole 808 are all set at an angle of 45 degrees. If they do not correspond, they cannot be inserted, achieving an anti-mistake effect.

[0043] The implementation principle of the present utility model is as follows: First, one positioning column 801, the wear-resistant layer 805, the support hole 807, and the positioning hole 808 are set at an angle of 45 degrees. Therefore, before assembly, the staff needs to align the inclined positioning column 801 with the inclined positioning hole 808, and correspond the other two non-inclined positioning columns 801 with the other two non-inclined positioning holes 808. If they do not correspond, they cannot be inserted, achieving an anti-mistake effect. And since the positioning column 801 penetrates the entire first mold 1 and the second mold 2 and has a relatively long dimension, when the staff assembles the first mold 1 and the second mold 2, the positioning column 801 will contact the second mold 2 before the two mold cores, thus effectively avoiding the phenomenon that the first mold core 4 and the second mold core 5 bump against the cavity 3 and cause damage;

[0044] After the positioning column 801 enters the positioning hole 808, before the first mold 1 and the second mold 2 are combined, the first mold 1 is always guided through the cooperation of the positioning column 801 and the positioning hole 808, avoiding the first mold 1 or the second mold 2 from jumping and causing the first mold core 4 and the second mold core 5 to bump against the cavity 3 and be damaged. At the same time, the Teflon wear-resistant layer 805 makes the left surface of the positioning column 801 have a self-lubricating effect, thereby reducing the wear between the positioning column 801 and the positioning block and extending the service life of the structure;

[0045] Since the positioning column 801 penetrates the first mold 1, the contact surface between the positioning column 801 and the first mold 1 is larger, thereby preventing the contact surface between the two from separating and falling off. The anti-bending column 802 cooperates with the positioning column 801 to form an arch structure, and the positioning column 801 and the inclined support plate 806 form a triangular inclined structure, which effectively increases the bending and compression resistance of the positioning column 801, thereby extending the service life of the positioning column 801.

[0046] When the positioning column 801, the anti-bending column 802, the wear-resistant layer 805 and the diagonal support plate 806 are damaged after long-term use, the staff can unscrew the bolt 804 to end the limitation of the mounting plate 803, and then the staff can directly take out the positioning column 801, the anti-bending column 802, the mounting plate 803, the wear-resistant layer 805 and the diagonal support plate 806 for replacement, and then tighten them with the bolt 804.

[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An extrusion die for zinc-magnesium alloy, comprising a first die (1) and a second die (2), characterized in that: A positioning component (8) is arranged inside the first mold (1), and the positioning component (8) includes a support hole (807). A positioning column (801) is connected inside the support hole (807). A bending-resistant column (802) and an inclined stay plate (806) are respectively fixed inside the positioning column (801). A wear-resistant layer (805) is coated on one side of the outer surface of the positioning column (801). A mounting plate (803) is fixed on one side of the positioning column (801), and a bolt (804) penetrates through one side of the mounting plate (803). A positioning hole (808) is formed on one side of the second mold (2).

2. The extrusion die for zinc-magnesium alloy according to claim 1, characterized in that: The cross-section of the bending-resistant column (802) is circular ring-shaped.

3. The extrusion die for zinc-magnesium alloy according to claim 1, characterized in that: There are three groups of the inclined stay plates (806), four in a group, and the four inclined stay plates (806) are distributed in an annular array.

4. The extrusion die for zinc-magnesium alloy according to claim 3, characterized in that: There are three positioning columns (801), bending-resistant columns (802), mounting plates (803), wear-resistant layers (805), support holes (807) and positioning holes (808). The three positioning columns (801), three bending-resistant columns (802), three mounting plates (803), three wear-resistant layers (805), three support holes (807), three positioning holes (808) and three groups of inclined stay plates (806) are distributed in a "pin" shape.

5. The extrusion die for zinc-magnesium alloy according to claim 1, characterized in that: The wear-resistant layer (805) is a Teflon coating.

6. The extrusion die for zinc-magnesium alloy according to claim 4, characterized in that: The positioning column (801) and the mounting plate (803) are both detachably connected to the first mold (1) through the bolt (804), and the positioning column (801) is slidably connected to the positioning hole (808).

7. The extrusion die for zinc-magnesium alloy according to claim 1, characterized in that: A first mold core (4) and a second mold core (5) are respectively connected inside the first mold (1) through a flow dividing bridge (6). The second mold (2) is connected to one side of the first mold (1). A cavity (3) is formed inside the second mold (2), and a zinc-magnesium profile (7) is arranged inside the cavity (3).

8. The extrusion die for zinc-magnesium alloy according to claim 4, characterized in that: The three positioning columns (801), wear-resistant layers (805), support holes (807) and positioning holes (808) are all square, and one of the positioning column (801), wear-resistant layer (805), support hole (807) and positioning hole (808) is arranged at an inclination of 45 degrees.

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