Aluminum profile extrusion die with pressure reduction structure

Abstract

The utility model discloses an aluminum profile extrusion die with a pressure reduction structure, which comprises a die body, the die body comprises an upper die and a lower die which are in close fit with each other, and a shunting bridge and a plurality of shunting holes separated by the shunting bridge are arranged in the upper die. According to the utility model, through the inclined sunken design of the diversion bridge site, the spherical surface arranged at the center of the diversion bridge site and the arrangement of the plurality of buffer strips, aluminum flow can stably enter the diversion holes, the feeding resistance during diversion is smaller, the flow velocity is relatively uniform and smooth, and the aluminum flow can be quickly diffused outwards along the inclined surfaces of the buffer strips; the proportion of all the parts is relatively uniform, so that the impact force of aluminum flow on the upper die and the impact force borne by the die core during aluminum flow discharging are reduced, the extrusion force brought by the aluminum flow borne by the upper die is integrally reduced, the strength of the upper die is indirectly improved, and normal production of aluminum profiles is guaranteed.

Description

Technical Field

[0001] The utility model specifically relates to an aluminum profile extrusion die with a decompression structure. Background Art

[0002] In the aluminum extrusion processing industry, aluminum alloy has low density, high strength, good plasticity, good extrusion formability, excellent electrical conductivity, thermal conductivity and corrosion resistance, and is safe and recyclable. Therefore, it is widely used in technical fields such as construction, electric vehicles, ships, aerospace, etc. At present, the production of aluminum profiles is usually completed by hot extrusion using molds at high temperatures. Different aluminum profiles have corresponding hot extrusion molds, so that different profiles can be produced;

[0003] At present, when some hot extrusion dies with larger die cores are producing aluminum profiles, the upper die is subjected to greater pressure under the impact of the aluminum flow, which makes it easy to be damaged and has a short service life, affecting the normal production of aluminum profiles.

[0004] Therefore, it is necessary to invent an aluminum profile extrusion die with a decompression structure to solve the above problems. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes an aluminum profile extrusion die with a decompression structure, through the inclined sinking design of the diverter bridge, a spherical surface at the center of the diverter bridge, and the setting of multiple buffer belts, the aluminum flow can smoothly enter the diverter hole, the feed resistance encountered during diversion is small, the flow rate is relatively uniform and smooth, and it can quickly diffuse outward along the inclined surface of the buffer belt, and the proportions at various places are relatively uniform, thereby reducing the impact force of the aluminum flow on the upper mold, and the impact force on the mold core when the aluminum flows out. On the whole, the extrusion pressure brought by the aluminum flow on the upper mold is reduced, which indirectly improves the strength of the upper mold and ensures the normal production of aluminum profiles.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aluminum profile extrusion die with a decompression structure,

[0009] The mold body comprises an upper mold and a lower mold which are tightly matched with each other;

[0010] The upper mold is provided with a shunt bridge and a plurality of shunt holes separated by the shunt bridge;

[0011] Among them, a spherical surface is arranged at the center of the diverter bridge, each bridge position of the diverter bridge is arranged to be inclined, and the top is inclined away from the center direction of the spherical surface, so that the entire feeding surface of the diverter bridge sinks, and the side of the diverter bridge close to the lower mold is connected to the mold core, and a plurality of buffer zones are arranged at the connection between the diverter bridge and the mold core.

[0012] Preferably, the lower die includes a welding chamber, a mold cavity, and a discharge hole. The welding chamber is opened on the side surface of the lower die close to the upper die. The mold cavity can be used for inserting the mold core for hot extrusion production of aluminum profiles. The discharge hole is connected with the welding chamber through the mold cavity for extrusion of the formed aluminum profiles.

[0013] Preferably, the cavity and the discharge hole are both configured as annular holes, and the inner diameter of the cavity is larger than the inner diameter of the discharge hole.

[0014] Preferably, the outer wall of the lower mold located at the opening of the cavity protrudes toward the upper mold to form a circle of flow blocking platform.

[0015] Preferably, the sinking thickness of the diverter bridge is set to one tenth of the thickness of the bridge position.

[0016] Preferably, several of the buffer belts are evenly spaced around the core mold, and each of the buffer belts is provided with an inclined surface on the side connected to the diversion bridge, and a vertical surface on the side connected to the core mold, so that the cross-section of the buffer belt is an overall right-angled trapezoidal shape, and each side of the buffer belt is chamfered.

[0017] Preferably, the upper mold and the lower mold are both configured to be disc-shaped, and the upper mold and the lower mold are tightly fitted with each other through locking pieces to be assembled into a mold body.

[0018] Compared with the prior art, the above technical solution of the utility model has the following beneficial effects:

[0019] The utility model adopts the design of inclined sinking of the diverter bridge, so that the aluminum flow can smoothly enter the diverter hole. At the same time, the design of the spherical surface reduces the feed resistance encountered by the aluminum flow during diversion, that is, the flow velocity of the aluminum flow during diversion is relatively uniform and smooth. Moreover, the buffer belt is provided, so that when the aluminum flow reaches the mold core, it can quickly diffuse outward along the inclined surface of the buffer belt, ensuring that the aluminum flow is relatively uniform in proportion at various places when it reaches the welding chamber, thereby reducing the impact force of the aluminum flow on the upper mold and the impact force encountered by the mold core when the aluminum flow is discharged. Overall, the extrusion pressure caused by the aluminum flow on the upper mold is reduced, and the strength of the upper mold is indirectly improved, so that the mold body has a long service life and is not easy to be damaged when the aluminum profile is extruded. The aluminum profile has a good molding effect and a high yield rate, which is beneficial to the extrusion production of the aluminum profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 It is a front cross-sectional view of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the utility model.

[0025] Description of reference numerals:

[0026] 1 mold body;

[0027] 100 upper mold, 101 diverter bridge, 102 diverter hole, 103 spherical surface, 104 mold core, 105, buffer belt;

[0028] 200 lower die, 201 welding chamber, 202 cavity, 203 discharge hole, 204 choke. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The utility model provides Figure 1-4 The aluminum profile extrusion die with a decompression structure shown includes a die body 1, wherein the die body 1 includes an upper die 100 and a lower die 200 that fit tightly with each other;

[0031] The upper mold 100 is provided with a diverter bridge 101 and a plurality of diverter holes 102 separated by the diverter bridge 101;

[0032] A spherical surface 103 is provided at the center of the bridge position of the diverter bridge 101. Each bridge position of the diverter bridge 101 is arranged to be inclined, and the top is inclined away from the center direction of the spherical surface 103, so that the feeding surface of the entire diverter bridge 101 sinks. A mold core 104 is connected to the side of the diverter bridge 101 close to the lower mold 200, and a plurality of buffer belts 105 are provided at the connection between the diverter bridge 101 and the mold core 104.

[0033] The outer wall of the lower mold 200 at the opening of the cavity 202 protrudes toward the upper mold 100 to form a circle of flow blocking platform 204, and the sinking thickness of the diverter bridge 101 is set to one tenth of the thickness of the bridge position.

[0034] In one embodiment, the lower mold 200 includes a welding chamber 201, a cavity 202, and a discharge hole 203. The welding chamber 201 is opened on the side surface of the lower mold 200 close to the upper mold 100. The cavity 202 can be used for inserting the mold core 104 for hot extrusion production of aluminum profiles. The discharge hole 203 is connected with the welding chamber 201 through the cavity 202 and is used for extruding the formed aluminum profile. The cavity 202 and the discharge hole 203 are both set as annular holes, and the inner diameter of the cavity 202 is larger than the inner diameter of the discharge hole 203, so that the outer surface of the formed aluminum profile will not be scratched when it is extruded, thereby ensuring the molding quality of its surface.

[0035] In one embodiment, a plurality of the buffer belts 105 are evenly spaced around the mold core 104, and each of the buffer belts 105 is provided with an inclined surface on one side connected to the diverter bridge 101, and a vertical surface on the other side connected to the mold core 104, so that the cross-section of the buffer belt 105 is an overall right-angled trapezoid, and each side of the buffer belt 105 is chamfered, so that the aluminum flow can quickly diffuse outward under the control of the buffer belt 105, thereby reducing the impact force on the mold core 104 when the aluminum flows out.

[0036] In one embodiment, the upper mold 100 and the lower mold 200 are both configured to be disc-shaped, and the upper mold 100 and the lower mold 200 are tightly fitted with each other through locking parts to assemble into the mold body 1, which is convenient for use and assembly of the mold body 1.

[0037] The specific implementation mode is as follows: when the utility model is in use, the aluminum flow is evenly divided into several streams under the action of the diverter bridge 101 and enters the upper mold 100 through the diverter hole 102. At this time, the diverter bridge 101, which is sunken and tilted, can make the aluminum flow smoothly enter the diverter hole 102, and the flow distribution of the aluminum flow is uniform and stable, thereby reducing the impact force of the aluminum flow on the upper mold 100, and improving the pressure bearing capacity of the upper mold 100 in disguised form. The design of the spherical surface 103 reduces the feeding resistance of the aluminum flow during diversion, ensures that the flow rate of the aluminum flow during diversion is uniform and smoother, and once again reduces the extrusion force on the upper mold 100, thereby improving the strength of the upper mold 100.

[0038] At the same time, by setting the buffer belt 105, the direction of the aluminum flow can be controlled when the aluminum flow reaches the mold core 104, that is, the aluminum flow at the mold core 104 can be quickly diffused outward along the inclined surface of the buffer belt 105, thereby reducing the impact force on the mold core 104 when the aluminum flows out, ensuring that the aluminum flow is relatively uniform in proportion at various locations when it reaches the welding chamber 201, so that the molding effect of the aluminum profile is good and the yield rate is high. In addition, by setting the baffle 204, it can enclose the molding area between the mold cavity 202 and the mold core 104, and the aluminum flow reaching the welding chamber 201 can enter the molding area after being buffered, thereby preventing the aluminum flow from being insufficient or excessive in a certain area when the aluminum flow enters the mold cavity 202, thereby ensuring the uniformity of the materials of each part of the aluminum profile during molding and its production quality;

[0039] Finally, after the aluminum flow reaches the lower die 200, it cooperates with the die core 104 to form the required aluminum profile at the die cavity 202, and then is extruded through the discharge hole 203 to complete the hot extrusion production of the aluminum profile;

[0040] This embodiment specifically solves the problem in the prior art that when some hot extrusion dies with larger mold cores 104 produce aluminum profiles, the upper mold 100 is subjected to greater pressure under the impact of aluminum flow, is easily damaged, has a short service life, and affects the normal production of aluminum profiles.

[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An aluminum profile extrusion die with a decompression structure, characterized in that: The mold body (1) comprises an upper mold (100) and a lower mold (200) which are tightly matched with each other; The upper mold (100) is provided with a diverter bridge (101) and a plurality of diverter holes (102) separated by the diverter bridge (101); A spherical surface (103) is provided at the center of the bridge position of the diverter bridge (101); each bridge position of the diverter bridge (101) is arranged in an inclined shape, and the top is inclined away from the center direction of the spherical surface (103), so that the entire feed surface of the diverter bridge (101) sinks; a mold core (104) is connected to the side of the diverter bridge (101) close to the lower mold (200); and a plurality of buffer zones (105) are provided at the connection between the diverter bridge (101) and the mold core (104).

2. The aluminum profile extrusion die with a decompression structure according to claim 1, characterized in that: The lower die (200) comprises a welding chamber (201), a die cavity (202), and a discharge hole (203); the welding chamber (201) is provided on a side surface of the lower die (200) close to the upper die (100); the die cavity (202) is capable of being inserted with a die core (104) for hot extrusion production of aluminum profiles; the discharge hole (203) is connected to the welding chamber (201) through the die cavity (202) for extrusion of the aluminum profiles after forming.

3. The aluminum profile extrusion die with a decompression structure according to claim 2, characterized in that: The mold cavity (202) and the discharge hole (203) are both configured as annular holes, and the inner diameter of the mold cavity (202) is greater than the inner diameter of the discharge hole (203).

4. The aluminum profile extrusion die with a decompression structure according to claim 3, characterized in that: The outer wall of the lower mold (200) located at the opening of the mold cavity (202) protrudes toward the upper mold (100) to form a circle of flow blocking platform (204).

5. The aluminum profile extrusion die with a decompression structure according to claim 1, characterized in that: The sinking thickness of the diversion bridge (101) is set to one tenth of the thickness of the bridge position.

6. The aluminum profile extrusion die with a decompression structure according to claim 1, characterized in that: A plurality of the buffer belts (105) are evenly spaced around the mold core (104), and each of the buffer belts (105) is provided with an inclined surface on one side connected to the diversion bridge (101), and a vertical surface on one side connected to the mold core (104), so that the cross section of the buffer belt (105) is in the shape of a right-angled trapezoid as a whole, and each side of the buffer belt (105) is chamfered.

7. The aluminum profile extrusion die with a decompression structure according to claim 1, characterized in that: The upper die (100) and the lower die (200) are both arranged in a disc shape, and the upper die (100) and the lower die (200) are tightly fitted with each other through a locking piece and assembled into a die body (1).

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