Hot extrusion die for screen window aluminum profile production

Abstract

The utility model discloses a hot extrusion die for producing a screen window aluminum profile, which comprises an upper die, a lower die positioned at the bottom of the upper die, a hole formed in the top of the upper die, a shunting bridge arranged in the hole, and a die core connected with the bottom of the shunting bridge, the hole is divided into four flow dividing holes by flow dividing bridges, and each flow dividing bridge comprises a supporting body located in the middle and four connecting bodies distributed on the outer side of the supporting body. According to the utility model, the hole I is divided into the four shunting holes which are combined with the back hole in the middle, so that aluminum flow is uniformly distributed in the die body, and the aluminum flow in the four shunting holes and the aluminum flow flowing out of the back hole simultaneously flush the inner side and the outer side of the die core, so that the impact force borne by the die core is balanced, and the strength of the die core is improved in a disguised manner; the die core is not easy to break when in use, the overall trend of aluminum flow is stable, and a formed screen window aluminum mold is flat in surface and high in quality.

Description

Technical Field

[0001] The utility model particularly relates to a hot extrusion die for producing screen window aluminum profiles. Background Art

[0002] Screen aluminum profiles refer to aluminum alloy profiles used to make screens. Their main function is to install screens to prevent mosquitoes, dust, and ventilation. Since they are made of extruded aluminum alloy, they have good corrosion resistance, high strength, and light weight. There are many types of screen aluminum profiles, including casement screens, folding screens, sliding screens, diamond mesh anti-theft screens, and other types. Users can choose according to different usage needs and scenarios. They are widely applicable to various door and window systems and have good application prospects. At present, screen aluminum profiles are often produced using hot extrusion dies.

[0003] However, if Figure 6 As shown, the cross-section of the screen window aluminum profile is small and complex. Accordingly, in order to extrude the aluminum flow into the finished screen window aluminum profile, the core of the hot extrusion die must also be small and complex. This causes the core to easily break due to insufficient strength, affecting its use.

[0004] Therefore, it is necessary to invent a hot extrusion die for producing screen window aluminum profiles to solve the above problems. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a hot extrusion die for the production of screen window aluminum profiles. By dividing the hole into four diversion holes and combining them with the back hole in the middle, the aluminum flow is evenly distributed in the mold body, and the aluminum flow in the four diversion holes and the aluminum flow flowing out of the back hole simultaneously wash the inner and outer sides of the mold core, so that the impact force on the mold core is balanced, which improves the strength of the mold core in disguise. The mold core is not easy to break during use, the overall trend of the aluminum flow is stable, and the surface of the formed screen window aluminum profile is flat and of high quality.

[0007] (2) Technical solution

[0008] In order to achieve the above object, the utility model provides the following technical solution: a hot extrusion die for producing screen window aluminum profiles, comprising an upper die and a lower die located at the bottom of the upper die;

[0009] It also includes a hole opened on the top of the upper mold, a diverter bridge arranged inside the hole, and a mold core connected to the bottom of the diverter bridge;

[0010] Among them, the holes are separated by diversion bridges to form four diversion holes, and the diversion bridge includes a support body located in the middle and four connectors distributed on the outside of the support body. A back hole is opened on the top of the support body to guide the aluminum flow directly to the mold core located directly below the support body.

[0011] Preferably, the four connectors are evenly spaced around the support body, and the top surface of the connector is milled downward by 20 mm, and the thickness of the upper mold is set to 60 mm.

[0012] Preferably, the support body is configured to be cylindrical on the top and truncated cone on the bottom, the back hole is configured to be an annular hole on the top and funnel-shaped on the bottom.

[0013] Preferably, the thickness of the lower die is set to 70 mm, and a cavity is opened on the top of the lower die for inserting the die core into the extruded aluminum flow to form the screen window aluminum profile.

[0014] Preferably, a discharge hole communicating with the cavity is provided at the bottom of the lower mold.

[0015] Preferably, the upper mold and the lower mold are fastened together to form a mold body through fasteners.

[0016] Compared with the prior art, the beneficial effects of the above technical solution of the utility model are:

[0017] The utility model sinks the diverter bridge as a whole to shorten the friction stroke between the aluminum flow and the diverter bridge, reduce the extrusion force on the upper mold and the mold core, and indirectly improve the strength of the mold core. The bottom of the support body is set in a frustum shape, which ensures that the aluminum flow has enough accommodating space on the outside of the mold core. At the same time, the diverter holes separated by the connector are positioned toward the outside of the cavity, so that the aluminum flow can be dispersed to feed into the cavity, reducing the impact force of the aluminum flow on the outside of the mold core. By providing a back hole, a part of the aluminum flow can flow directly downward through the back hole and directly hit the middle part of the mold core, so that the impact force on the mold core is balanced inside and outside, and the strength of the mold core is enhanced again in disguise, thereby ensuring that the mold core is not easy to break during use, and ensuring the normal production of screen window aluminum profiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the upper mold structure of the present utility model;

[0021] Figure 3 This is a top view of the upper die of the utility model;

[0022] Figure 4 This is a schematic diagram of the lower mold structure of the present utility model;

[0023] Figure 5 It is a cross-sectional view of the utility model;

[0024] Figure 6 This is a schematic cross-sectional view of the screen window aluminum profile produced by the present invention.

[0025] Description of reference numerals:

[0026] 1 upper die, 2 lower die, 3 holes, 4 diversion bridge, 41 support body, 42 connector, 5 mold core, 6 diversion hole, 7 back hole, 8 cavity, 9 discharge hole. DETAILED DESCRIPTION

[0027] 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 with reference to the accompanying drawings.

[0028] The utility model provides Figure 1-6 A hot extrusion die for producing screen window aluminum profiles shown includes an upper die 1 and a lower die 2 located at the bottom of the upper die 1;

[0029] It also includes a hole 3 opened on the top of the upper mold 1, a diverter bridge 4 arranged inside the hole 3, and a mold core 5 connected to the bottom of the diverter bridge 4;

[0030] Among them, the hole 3 is separated by a diversion bridge 4 to form four diversion holes 6, and the diversion bridge 4 includes a support body 41 located in the middle and four connectors 42 distributed on the outside of the support body 41. A back hole 7 is opened on the top of the support body 41 to guide the aluminum flow directly to the mold core 5 located directly below the support body 41.

[0031] In one embodiment, the four connectors 42 are evenly spaced around the support body 41, so that the aluminum flow can be evenly divided into four streams after entering the hole 3, and the top surface of the connector 42 is milled down by 20 mm, so that the aluminum flow in the diversion hole 6 is sufficient, and at the same time, the friction stroke between the aluminum flow and the diversion bridge 4 is shortened, the extrusion pressure from the aluminum flow on the upper mold 1 is reduced, and the extrusion speed is increased. The thickness of the upper mold 1 is set to 60 mm, so that when the aluminum flow flows inside the upper mold 1, it has a sufficiently long flow path, thereby ensuring the smooth flow of the aluminum flow, wherein the upper part of the support body 41 is set to be cylindrical and the lower part is set to be truncated cone, the upper part of the back hole 7 is set to be annular, and the lower part is funnel-shaped as a whole, so that the aluminum flow in the back hole 7 is sufficient, and the smaller mold core 5 can be directly punched internally, ensuring sufficient aluminum flow supply at the mold core 5 while avoiding large impact force to damage the mold core 5.

[0032] In one embodiment, the thickness of the lower mold 2 is set to 70 mm, which allows the aluminum flow to better fuse in the cavity 8. A cavity 8 is opened at the top of the lower mold 2 for inserting the mold core 5 into the extruded aluminum flow to form a screen window aluminum profile. A discharge hole 9 connected to the cavity 8 is opened at the bottom of the lower mold 2 for discharging the formed screen window aluminum profile. The opening of the discharge hole 9 is larger than the opening of the cavity 8, which facilitates the extrusion of the aluminum profile after forming and ensures the integrity of the aluminum profile surface.

[0033] In one embodiment, the upper mold 1 and the lower mold 2 are fastened to each other through fasteners to form a mold body. Specifically, the fasteners are configured as pins or bolts to facilitate the staff to assemble the mold body, and the mold body as a whole is disc-shaped, which is convenient for the staff to use the mold body.

[0034] The embodiment is as follows: when the present invention is in use, the aluminum flows through the hole 3 into the interior of the upper mold 1, and then is divided into four streams under the diversion of the diversion bridge 4 and flows downward through the four diversion holes 6. Further, when the aluminum flow reaches the cavity 8 of the lower mold 2, it is extruded by the mold core 5 and discharged through the discharge hole 9 after the screen window aluminum profile is formed, thereby completing the hot extrusion production of the screen window aluminum profile;

[0035] Specifically, the die body, which is assembled from the upper die 1 and the lower die 2, is used on a 1000T extruder. The aluminum rod is extruded using &127 aluminum rod. When the aluminum flow enters the hole 3, the sunken diverter bridge 4 can shorten the friction stroke between the aluminum flow and the diverter bridge 4, thereby reducing the extrusion force on the upper die 1 and the die core 5, and indirectly improving the strength of the die core 5.

[0036] The bottom of the support body 41 is configured in a truncated cone shape, which ensures that there is sufficient space for the aluminum flow outside the mold core 5, thereby ensuring sufficient aluminum flow supply outside the mold core 5. At the same time, the diversion holes 6 separated by the connector 42 are all located outside the mold cavity 8, so that the aluminum flow can be dispersed and fed into the mold cavity 8, reducing the impact force of the aluminum flow on the outside of the mold core 5.

[0037] Furthermore, by providing the back hole 7, a portion of the aluminum flow can directly flow downward through the back hole 7 and directly hit the middle part of the mold core 5, which not only ensures sufficient material supply in the middle of the mold core 5, but also, the aluminum flow flowing out of the diverter hole 6 impacts the outside of the mold core 5, while the aluminum flow flowing out of the back hole 7 impacts the inside of the mold core 5, thereby balancing the impact force on the mold core 5, and providing sufficient material supply inside and outside the mold core 5, and evenly distributing the pressure inside the mold body. The combination of four diverter holes 6 and one back hole 7 makes the aluminum flow trend stable, and the strength of the mold core 5 is enhanced again in disguise, thereby making the mold core 5 not easy to break during use, thereby ensuring the normal production of screen window aluminum profiles;

[0038] When the mold body is in use, the hole 3 is divided into four diversion holes 6, which are combined with the back hole 7 in the middle, so that the aluminum flow is evenly distributed in the mold body, and the aluminum flow in the four diversion holes 6 and the aluminum flow out of the back hole 7 simultaneously wash the inner and outer sides of the mold core 5, so that the impact force on the mold core 5 is balanced, which improves the strength of the mold core 5 in disguise. The mold core 5 is not easy to break during use, the overall trend of the aluminum flow is stable, and the surface of the formed screen aluminum mold is flat and of high quality.

[0039] This embodiment specifically solves the problem in the prior art that the cross-section of the screen window aluminum profile is small and complex. Accordingly, in order to extrude the aluminum flow into the finished screen window aluminum profile, the core 5 of the hot extrusion mold must also be small and complex, which causes the core 5 to easily break due to insufficient strength, affecting its use.

[0040] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hot extrusion die for producing aluminum profiles for screen windows, characterized by: It comprises an upper mold (1) and a lower mold (2) located at the bottom of the upper mold (1); It also includes a hole (3) opened at the top of the upper mold (1), a diverter bridge (4) arranged inside the hole (3), and a mold core (5) connected to the bottom of the diverter bridge (4); The hole (3) is separated by a diversion bridge (4) to form four diversion holes (6), and the diversion bridge (4) includes a support body (41) located in the middle and four connectors (42) distributed on the outside of the support body (41). A back hole (7) is opened on the top of the support body (41) for guiding the aluminum flow to directly hit the mold core (5) located directly below the support body (41).

2. The hot extrusion die for producing screen window aluminum profiles according to claim 1, characterized in that: The four connectors (42) are evenly spaced around the support body (41), and the top surface of the connector (42) is milled downward by 20 mm. The thickness of the upper mold (1) is set to 60 mm.

3. The hot extrusion die for producing screen window aluminum profiles according to claim 1, characterized in that: in, The support body (41) is configured as a cylindrical shape on the top and a truncated cone shape on the bottom. The back hole (7) is configured as an annular hole on the top and a funnel shape on the bottom.

4. The hot extrusion die for producing screen window aluminum profiles according to claim 1, characterized in that: The thickness of the lower mold (2) is set to 70 mm, and a mold cavity (8) is opened on the top of the lower mold (2) for inserting the mold core (5) into the extruded aluminum flow to form the screen window aluminum profile.

5. The hot extrusion die for producing screen window aluminum profiles according to claim 4, characterized in that: The bottom of the lower mold (2) is provided with a discharge hole (9) which is connected to the mold cavity (8).

6. The hot extrusion die for producing screen window aluminum profiles according to claim 1, characterized in that: The upper die (1) and the lower die (2) are fastened together to form a die body via fasteners.

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