Partitioned extrusion die for frame profile

Abstract

The utility model discloses a partition extrusion die for a frame section bar, which comprises a front die, a middle die and a rear die, the front die is provided with a core frame shunting cavity and a support arm shunting cavity, the front die is provided with a core strip, the middle die is provided with a support arm welding chamber, the rear die is provided with a die core, the die core penetrates through the support arm welding chamber, the die core is provided with a core frame pre-cooling cavity and four support arm welding grooves, and the support arm welding chamber is provided with four support arm welding grooves. Two opposite sides of the support arm welding groove are respectively connected with the core frame pre-cooling cavity and the support arm welding chamber; the rear mold is provided with a core frame forming cavity and four support arm forming cavities, the four support arm forming cavities are connected to the periphery of the core frame forming cavity, the two ends of the support arm welding chamber are connected with the support arm flow dividing cavity and the support arm forming cavities, the two ends of the core frame pre-cooling cavity are connected with the core frame flow dividing cavity and the core frame forming cavities, and the core strips penetrate through the core frame pre-cooling cavity and the core frame forming cavities. The rear mold is further provided with a cooling runner, and the cooling runner is located on the side, away from the core frame forming cavity, of the supporting arm forming cavity. The pre-cooling device can be used for pre-cooling the core frame of the frame profile, the cooling effect is uniform, and the shaping effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to extrusion die technical field, especially frame section bar's partition extrusion die. BACKGROUND

[0002] Frame section bar, general frame aluminum profile, frame section bar cross section forms stable frame support structure, because its structure stability, load capacity strong etc.

[0003] To obtain the frame section bar of specified cross section shape, in traditional technology, generally adopt integral casting or welding process to make frame section bar, the production efficiency of this method is low, but when making frame section bar by extrusion, because of the complex cross section structure of frame section bar, the forming effect of metal melt in extrusion process is uneven, and the structural stability of the prepared frame section bar is insufficient. SUMMARY

[0004] The utility model discloses at least one of the technical problems in prior art is solved, for this, the utility model provides a frame section bar's partition extrusion die, production efficiency is high, and the forming effect is uniform, can effectively improve the structural stability of the prepared frame section bar.

[0005] According to a frame section bar's partition extrusion die of the utility model embodiment, including front mould, middle mould and back mould, the front mould is equipped with core frame shunt chamber and branch arm shunt chamber, and the front mould is equipped with core strip on the side close to the middle mould, the middle mould is equipped with branch arm welding chamber, and the back mould is equipped with mould core on the side close to the middle mould, and the mould core is arranged in the branch arm welding chamber, and the mould core is equipped with core frame precooling chamber and four branch arm welding grooves, and the opposite two sides of each branch arm welding groove are connected with the core frame precooling chamber and the branch arm welding chamber respectively, and the back mould is equipped with core frame forming cavity and four branch arm forming cavities, and the four branch arm forming cavities are connected to the four peripheries of the core frame forming cavity, and the two ends of the branch arm welding chamber are connected with the branch arm shunt chamber and the branch arm forming cavity respectively, and the two ends of the core frame precooling chamber are connected with the core frame shunt chamber and the core frame forming cavity respectively, and the core strip is arranged in the core frame precooling chamber and the core frame forming cavity, and the back mould is further equipped with cooling flow channel, and the cooling flow channel is located on the side of the branch arm forming cavity away from the core frame forming cavity.

[0006] According to a frame section bar's partition extrusion die of some utility model embodiments, the mould core is equipped with four shunt arms, and each shunt arm is located between the corresponding two adjacent branch arm welding grooves.

[0007] According to a frame section bar's partition extrusion die of some utility model embodiments, the branch arm forming cavity includes reinforcing member cavity and support arm cavity, and the opposite two ends of the support arm cavity are connected with the core frame forming cavity and the reinforcing member cavity respectively, and the opposite two ends of the branch arm welding groove are connected with the branch arm shunt chamber and the support arm cavity respectively.

[0008] According to the frame section partition extrusion die of some embodiments of the present application, the core strip comprises a flow guide circular table and a shaping cylinder, the upper bottom of the flow guide circular table is connected with the front die, the lower bottom of the flow guide circular table is connected with the shaping cylinder, the flow guide circular table is arranged in the core frame pre-cooling cavity, and the shaping cylinder is arranged in the core frame forming cavity.

[0009] According to the frame section partition extrusion die of some embodiments of the present application, the support arm welding chamber is in the shape of a prism, the lower bottom of the support arm welding chamber is connected with the support arm shunt cavity, and the upper bottom of the support arm welding chamber is connected with the u-shaped support arm forming cavity.

[0010] According to the frame section partition extrusion die of some embodiments of the present application, four cooling flow channels are arranged, and the four cooling flow channels are arranged around the four support arm forming cavities.

[0011] According to the frame section partition extrusion die of some embodiments of the present application, the front die is provided with an input positioning groove on the side away from the middle die.

[0012] According to the frame section partition extrusion die of some embodiments of the present application, the rear die is provided with an output accommodation groove on the side away from the middle die.

[0013] According to the frame section partition extrusion die of some embodiments of the present application, at least the following beneficial effects are achieved: through the accurate design of the front die, the middle die and the rear die and the structure of partition extrusion, the efficient and high-precision production of the frame section is realized, the cooling flow channel arranged on the rear die is located on the side of the support arm forming cavity away from the core frame forming cavity, the layout of the cooling system is optimized, the manufacturing difficulty of the extrusion die is reduced, the rear die cooled through the cooling flow channel can not only effectively improve the cooling and forming effect of the metal melt in the support arm forming cavity and the core frame forming cavity, but also the die core connected with the rear die can also obtain the cooling and temperature reduction effect, so that the metal melt in the core frame pre-cooling cavity is pre-cooled in advance, that is, the core frame of the frame section can be pre-cooled, thereby effectively improving the cooling and shaping effect of the central region of the frame section, balancing the forming speed of the core frame and the support arm of the frame section, reducing the deformation and cracking risk of the frame section, the cooling and temperature reduction effect is uniform and reliable, the cooling and shaping effect is good, and the quality and performance of the prepared frame section product can be effectively improved.

[0014] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1This is a three-dimensional structural diagram of the partitioned extrusion die for the frame profile according to an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the partitioned extrusion die for the frame profile according to an embodiment of the present utility model, viewed from another perspective.

[0018] Figure 3 This is a front view schematic diagram of the partitioned extrusion die for the frame profile according to an embodiment of the present utility model.

[0019] Figure 4 The partitioned extrusion die for the frame profile in this embodiment of the utility model is along Figure 3 A schematic diagram of the cross-sectional structure of AA;

[0020] Figure 5 This is an exploded structural diagram of the partitioned extrusion die for the frame profile according to an embodiment of the present utility model;

[0021] Figure 6 This is a perspective structural diagram of the rear die in the partitioned extrusion die of the frame profile according to an embodiment of the present utility model.

[0022] Figure label:

[0023] Front mold 1, core frame flow distribution cavity 11, support arm flow distribution cavity 12, core strip 13, guide frustum 131, shaping cylinder 132, input positioning groove 14, middle mold 2, support arm welding chamber 21, rear mold 3, mold core 31, core frame pre-cooling cavity 311, support arm welding groove 312, flow distribution arm 313, core frame forming cavity 32, support arm forming cavity 33, reinforcing cavity 331, support arm cavity 332, cooling channel 34, output clearance groove 35. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0026] In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have this particular orientation, be constructed in a particular orientation, and be operated in this way, which cannot be understood as a limitation of the utility model.

[0027] In the conventional technology, the frame section is usually made by integral casting or welding process, and the manufacturing efficiency of this method is low, but when the frame section is made by extrusion, due to the complex cross-sectional structure of the frame section, the forming effect of the metal melt is uneven in the extrusion process, and the structural stability of the prepared frame section is insufficient. In addition, the cooling system of the existing mold is often designed unreasonably, resulting in uneven temperature distribution of the section during extrusion, further increasing the risk of deformation and cracking of the section.

[0028] The technical solutions of the utility model will be further described below in combination with the drawings and through specific embodiments.

[0029] With reference to Figures 1 to 6 The partitioned extrusion mold of the frame section of the utility model embodiment comprises a front mold 1, a middle mold 2 and a rear mold 3, the front mold 1 is provided with a core frame shunt cavity 11 and an arm shunt cavity 12, the side of the front mold 1 close to the middle mold 2 is provided with a core strip 13, the middle mold 2 is provided with an arm welding chamber 21, the side of the rear mold 3 close to the middle mold 2 is provided with a mold core 31, the mold core 31 is arranged in the arm welding chamber 21, and an arm welding cavity for welding the arm is formed between the mold core 31 and the arm welding chamber 21, the mold core 31 is provided with a core frame pre-cooling cavity 311 and four arm welding grooves 312, and the opposite sides of each arm welding groove 312 are connected with the core frame pre-cooling cavity 311 and the arm welding chamber 21 respectively; the rear mold 3 is provided with a core frame forming cavity 32 and four arm forming cavities 33, the four arm forming cavities 33 are connected to the four peripheries of the core frame forming cavity 32 respectively, the two ends of the arm welding chamber 21 are connected with the arm shunt cavity 12 and the arm forming cavity 33 respectively, the two ends of the core frame pre-cooling cavity 311 are connected with the core frame shunt cavity 11 and the core frame forming cavity 32 respectively, and the core strip 13 is arranged in the core frame pre-cooling cavity 311 and the core frame forming cavity 32; the rear mold 3 is further provided with a cooling flow channel 34, and the cooling flow channel 34 is located on the side of the arm forming cavity 33 away from the core frame forming cavity 32.

[0030] The precise design of the front die 1, the middle die 2 and the rear die 3 and the structure of the partition extrusion are used to realize the efficient and high-precision production of the frame profile. The cooling flow channel 34 arranged on the rear die 3 is located at the side of the branch arm forming cavity 33 away from the core frame forming cavity 32, which optimizes the layout of the cooling system, reduces the manufacturing difficulty of the extrusion die, and facilitates the manufacturing of the die. Since the cooling flow channel 34 is different in distance from the branch arm forming cavity 33 and the core frame forming cavity 32, the cooling effect of the metal melt in the two areas of the rear die 3 is different. The rear die 3 of the partition extrusion die cooled by the cooling flow channel 34 can not only effectively improve the cooling and forming effect of the metal melt in the branch arm forming cavity 33 and the core frame forming cavity 32, but also enable the die core 31 connected to the rear die 3 to obtain the cooling and temperature reduction effect, so as to pre-cool the metal melt in the core frame pre-cooling cavity 311, that is, to pre-cool the core frame of the frame profile, thereby effectively improving the cooling and setting effect of the center area of the frame profile. The pre-cooled core frame and the branch arm are cooled in the rear die 3 at the same time, thereby balancing the forming speed of the core frame and the branch arm of the frame profile, reducing the deformation and cracking risk of the frame profile, and improving the quality and performance of the frame profile product.

[0031] It can be understood that four shunt arms 313 are arranged around the die core 31, and each shunt arm 313 is located between the corresponding adjacent two branch arm welding grooves 312. The shunt arm 313 is used to divide the branch arm welding cavity formed between the branch arm welding chamber 21 and the die core 31 to form four channels respectively connected to the corresponding branch arm forming cavity 33.

[0032] It can be understood that each branch arm forming cavity 33 includes a reinforcing member cavity 331 and a support arm cavity 332. The opposite ends of the support arm cavity 332 are respectively connected to the core frame forming cavity 32 and the reinforcing member cavity 331. The opposite ends of the branch arm welding groove 312 are respectively connected to the branch arm shunt cavity 12 and the support arm cavity 332, which can realize reliable filling effect.

[0033] It can be understood that the core strip 13 includes a flow guide circular table 131 and a setting cylinder 132. The upper bottom of the flow guide circular table 131 is connected to the front die 1, and the lower bottom of the flow guide circular table 131 is connected to the setting cylinder 132. The flow guide circular table 131 is arranged in the core frame pre-cooling cavity 311, and the setting cylinder 132 is arranged in the core frame forming cavity 32, which can form a good flow guide effect and effectively ensure the forming effect.

[0034] It can be understood that the branch arm welding chamber 21 is in the shape of a truncated pyramid, the lower bottom of the branch arm welding chamber 21 is connected with the branch arm distribution cavity 12, and the upper bottom of the branch arm welding chamber 21 is connected with the branch arm forming cavity 33. By setting the branch arm welding chamber 21 in the shape of a truncated pyramid, the metal melt can be continuously narrowed in the advancing process, so that the extrusion density is effectively improved, and the performance of the prepared frame section bar can be effectively improved.

[0035] It can be understood that the cooling flow channel 34 is provided with four, and the four cooling flow channels 34 are arranged around the area composed of the four branch arm forming cavities 33, so that a good cooling effect can be achieved. The two ends of each cooling flow channel 34 are respectively connected with the cold water supply device and the cold water recovery device.

[0036] It can be understood that the front die 1 is provided with an input positioning groove 14 away from the middle die 2, one end of each core frame distribution cavity 11 and one end of each branch arm distribution cavity 12 are connected with the input positioning groove 14, and the input positioning groove 14 is used for positioning the aluminum bar.

[0037] It can be understood that the rear die 3 is provided with an output accommodation groove 35 away from the middle die 2, one end of the core frame forming cavity 32 and one end of each branch arm forming cavity 33 are connected with the output accommodation groove 35, and the output accommodation hole is used for accommodating the frame section bar obtained by extrusion.

[0038] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A sectional extrusion die for a frame profile, characterized in that, The utility model relates to a die, including front mould (1), middle mould (2) and back mould (3), the front mould (1) is equipped with core frame shunt chamber (11) and branch arm shunt chamber (12), the front mould (1) is equipped with core strip (13) near the one side of middle mould (2), the middle mould (2) is equipped with branch arm welding chamber (21), the back mould (3) is equipped with mould core (31) near the one side of middle mould (2), the mould core (31) is equipped with core frame precooling chamber (311) and four branch arm welding grooves (312) in the branch arm welding chamber (21), and the opposite two sides of every branch arm welding groove (312) are connected with core frame precooling chamber (311) and branch arm welding chamber (21) respectively, the back mould (3) is equipped with core frame forming chamber (32) and four branch arm forming cavities (33), four branch arm forming cavities (33) are connected to the four periphery of core frame forming chamber (32), and the both ends of branch arm welding chamber (21) are connected with branch arm shunt chamber (12) and branch arm forming cavity (33) respectively, the both ends of core frame precooling chamber (311) are connected with core frame shunt chamber (11) and core frame forming chamber (32) respectively, and core strip (13) passes through core frame precooling chamber (311) and core frame forming chamber (32) in the middle, the back mould (3) is further equipped with cooling flow channel (34), and the cooling flow channel (34) is located at the one side of branch arm forming cavity (33) away from core frame forming chamber (32).

2. A sectional extrusion die for a frame profile according to claim 1, characterised in that The mould core (31) is provided with four shunt arms (313) outside, and every shunt arm (313) is located between the corresponding adjacent two branch arm welding grooves (312).

3. A sectional extrusion die for a frame profile according to claim 2, characterised in that, The branch arm forming cavity (33) includes a reinforcing member cavity (331) and a support arm cavity (332), the opposite ends of the support arm cavity (332) are connected with the core frame forming chamber (32) and the reinforcing member cavity (331) respectively, and the opposite ends of the branch arm welding groove (312) are connected with the branch arm shunt chamber (12) and the support arm cavity (332) respectively.

4. A sectional extrusion die for a frame profile according to claim 1, characterized in that The core strip (13) includes a flow guide circular truncated cone (131) and a shaped cylinder (132), the upper bottom of the flow guide circular truncated cone (131) is connected with the front mould (1), the lower bottom of the flow guide circular truncated cone (131) is connected with the shaped cylinder (132), the flow guide circular truncated cone (131) passes through the core frame precooling chamber (311), and the shaped cylinder (132) passes through the core frame forming chamber (32).

5. A sectional extrusion die for a frame profile according to claim 1, characterized in that The branch arm welding chamber (21) is in the shape of a prism, the lower bottom of the branch arm welding chamber (21) is connected with the branch arm shunt chamber (12), and the upper bottom of the branch arm welding chamber (21) is connected with the branch arm forming cavity (33).

6. A sectional extrusion die for a frame profile according to claim 1, characterized in that The cooling flow channel (34) is provided with four, and the four cooling flow channels (34) surround the four periphery of the four branch arm forming cavities (33).

7. A sectional extrusion die for a frame profile according to claim 1, characterized in that The front mould (1) is provided with an input positioning groove (14) on the side away from the middle mould (2).

8. A sectional extrusion die for a frame profile according to claim 1, characterized in that The back mould (3) is provided with an output accommodation groove (35) on the side away from the middle mould (2).

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