Extrusion die for aluminum profile of lifting structure of display

Abstract

The extrusion die for the aluminum profile of the lifting structure of the display comprises an upper die and a lower die, the mold core is arranged at the bottom of a connecting column in the middle of the bottom surface of the upper mold; a plurality of peripheral shunting holes which are circumferentially spaced and vertically penetrate through the upper mold are formed in the periphery of the connecting column; a middle flow dividing hole located above the connecting column is further formed in the middle of the top face of the upper die in a concave mode. The mold core is sleeved in the cavity; forming holes are formed in the outer peripheral wall of the mold core in an inward concave mode, and the forming holes comprise large screw arm forming holes and small rib forming holes; the screw arm forming holes and the rib forming holes penetrate through the bottom face of the mold core downwards, and the screw arm forming holes are further communicated with the middle flow dividing holes upwards. Therefore, the screw arm forming hole upwards communicates with the middle flow dividing hole, sufficient metal materials can be provided for the screw arm forming hole in the extrusion forming process, the situation that feeding is insufficient due to the fact that feeding is conducted only through the peripheral flow dividing holes is avoided, it is ensured that the structure of a screw arm formed after a product is formed is stable, and fracture deformation of the screw hole can be prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of molds, and in particular to an extrusion mold for an aluminum profile of a display lifting structure. Background Technology

[0002] Extrusion dies are a type of forming die, and their material discharge is achieved through the extrusion action. They are widely used in the production of aluminum irregular structures. For example... Figure 1 The aluminum profile 10 of the display lifting structure shown has defects such as easy breakage of the internal screw hole 11 during extrusion, obvious dark marks on the surface, and easy deformation of the product when produced using a conventional extrusion die, which affect the subsequent assembly of the aluminum profile. Utility Model Content

[0003] The purpose of this invention is to provide an extrusion mold for aluminum profiles of display lifting structures, which has the advantage of ensuring smooth product molding and preventing breakage and deformation.

[0004] To achieve the above objectives, the solution of this utility model is:

[0005] An extrusion die for an aluminum profile of a display lifting structure includes an upper die and a lower die, wherein the upper die and the lower die are fastened together, and the die core of the upper die is fitted into the cavity of the lower die; the die core is located at the bottom of a connecting post protruding from the center of the bottom surface of the upper die, and the outer periphery of the connecting post is provided with several circumferentially spaced and vertically penetrating outer periphery flow diversion holes of the upper die; the top surface of the upper die is also recessed in the center and located above the connecting post in the middle of the upper die.

[0006] The mold core is placed inside the cavity, forming a gap for aluminum profile forming; the outer peripheral wall of the mold core is recessed inward with forming holes, including a larger screw arm forming hole and a smaller rib forming hole; both the screw arm forming hole and the rib forming hole penetrate downward through the bottom surface of the mold core, and the screw arm forming hole is also connected upward to the middle flow hole.

[0007] Furthermore, the outer wall of the mold core is divided into a forming hole wall with forming holes and a smooth outer wall without forming holes; a welding chamber is recessed in the middle of the top surface of the lower mold, and the cavity is set in the middle of the welding chamber; a flow-blocking block is provided at the top opening edge of the cavity in the welding chamber, and the flow-blocking block is correspondingly arranged around the forming hole wall of the mold core.

[0008] Furthermore, the connecting post has a tapered design at the bottom.

[0009] Furthermore, the connection point between the connecting post and the mold core is also provided with guide holes corresponding to the screw arm forming holes, the guide holes are downward and inward connected to the screw arm forming holes; the connection point between the connecting post and the mold core is also provided with guide grooves corresponding to the rib forming holes, the guide grooves extend downward close to the outer peripheral diversion holes and extend downward to connect to the rib forming holes.

[0010] Furthermore, the bottom of the middle flow hole gradually narrows and can surround the outer periphery of each forming hole.

[0011] Furthermore, the number of peripheral flow dividers is four.

[0012] After adopting the above technical solution, since the screw arm forming hole in the upper mold core is large and located inside the mold core, by setting an upward-connecting middle flow hole, sufficient metal material can be provided to the screw arm forming hole during the extrusion molding process. This avoids insufficient feeding caused by feeding only from the outer peripheral flow hole, ensuring the structural stability of the screw arm after product molding and preventing screw hole breakage and deformation. Moreover, the top surface of the upper mold has multiple outer peripheral flow holes and middle flow holes, which can divert the metal material to slow down the flow rate of the metal material in the outer peripheral flow hole, so that the flow rate of the metal material flowing from the outer peripheral flow hole to the aluminum profile forming gap is balanced, avoiding excessive flow rate and reducing the generation of dark marks on the product surface. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of an aluminum profile for a display lifting structure;

[0014] Figure 2 This is a perspective view of an embodiment of the present utility model;

[0015] Figure 3 This is a bottom view of an embodiment of the present utility model;

[0016] Figure 4 This is a top view of an embodiment of the present utility model;

[0017] Figure 5 for Figure 4 Sectional view at point AA;

[0018] Figure 6 for Figure 4 Sectional view at BB;

[0019] Figure 7 This is a perspective view of the lower mold of an embodiment of the present utility model;

[0020] Figure 8 This is a perspective view of the upper mold in an embodiment of the present utility model;

[0021] Figure 9 This is a bottom view of the upper mold according to an embodiment of the present utility model;

[0022] Figure 10 This is a front view of the upper mold according to an embodiment of the present utility model.

[0023] Labeling Explanation: Aluminum profile 10, screw hole 11, screw arm 12, first irregular screw arm 121, second irregular screw arm 122, rib 13, upper mold 20, mold core 21, forming hole 211, screw arm forming hole 2111, rib forming hole 2112, forming hole wall 212, smooth outer wall 213, connecting post 22, guide hole 221, guide groove 222, outer peripheral flow branch hole 23, middle flow branch hole 24, trapezoidal cavity 241, lower mold 30, cavity 31, welding chamber 32, flow blocking block 33, aluminum profile forming gap 40. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] like Figures 2 to 10 The extrusion die for an aluminum profile of a display lifting structure according to this embodiment includes an upper die 20 and a lower die 30. The upper die 20 and the lower die 30 are fastened together, and the die core 21 of the upper die 20 is fitted into the cavity 31 of the lower die 30.

[0026] The mold core 21 is located at the bottom of the connecting post 22 protruding from the center of the bottom surface of the upper mold 20. The outer periphery of the connecting post 22 is provided with several circumferentially spaced and vertically penetrating outer periphery flow diversion holes 23 of the upper mold 20. In this embodiment, the number of outer periphery flow diversion holes 23 is four, but it is not limited to this.

[0027] The upper mold 20 also has a recessed middle flow hole 24 located above the connecting post 22 in the middle of its top surface.

[0028] The mold core 21 is fitted inside the cavity 31, forming an aluminum profile forming gap 40 between them; the outer peripheral wall of the mold core 21 is recessed with forming holes 211, which include a larger screw arm forming hole 2111 and a smaller rib forming hole 2112; both the screw arm forming hole 2111 and the rib forming hole 2112 penetrate downward through the bottom surface of the mold core 21, and the screw arm forming hole 2111 is also connected upward to the middle flow hole 24.

[0029] Referring to Figure 1, this embodiment can be used to produce an aluminum profile 10 for a display lifting structure. The aluminum profile 10 is an elliptical ring with several irregularly shaped screw arms 12 and ribs 13 protruding from its inner wall. The irregularly shaped screw arms 12 have screw holes 11. Correspondingly, the forming gap 40 of the aluminum profile in this embodiment can be elliptical and has screw arm forming holes 2111 and rib forming holes 2112 to form irregularly shaped screw arms 12 and ribs 13. In this embodiment, the screw arm forming holes 2111 in the upper mold core 21 are large and located inside the mold core 21. Therefore, by setting an upward connection to... The central flow-diverting hole 24 can provide sufficient metal material to the screw arm forming hole 2111 during the extrusion molding process, avoiding insufficient feeding caused by feeding only from the outer peripheral flow-diverting hole 23, ensuring the structural stability of the screw arm 12 after product molding, and preventing the screw hole 11 from breaking and deforming; moreover, the top surface of the upper die 20 has multiple outer peripheral flow-diverting holes 23 and central flow-diverting holes 24, which can divert the metal material to slow down the flow rate of the metal material in the outer peripheral flow-diverting hole 23, so that the flow rate of the metal material flowing from the outer peripheral flow-diverting hole 23 to the aluminum profile forming gap 40 is balanced, avoiding excessive flow rate, and reducing the generation of dark marks on the product surface.

[0030] The outer wall of the mold core 21 in this embodiment can be divided into a molding hole wall 212 with molding holes 211 and an arc-shaped smooth outer wall 213 without molding holes 211. Because Figure 1 The aluminum profile 10 shown has two first irregular screw arms 121 arranged mirror-symmetrically along the long axis below the short axis, and two second irregular screw arms 122 arranged radially symmetrically along the long axis above the short axis. At the same time, there is a rib 13 between the adjacent first irregular screw arms 121 and second irregular screw arms 122. The first irregular screw arms 121 and second irregular screw arms 122 can be formed by screw arm forming holes 2111 of different shapes. Therefore, the mold core 21 of this embodiment has two forming hole walls 212 arranged symmetrically on the left and right, and the front and rear sides of the two forming hole walls 212 also have two smooth outer walls 213 respectively.

[0031] See Figure 7 The lower mold 30 has a welding chamber 32 recessed in the middle of its top surface, and the cavity 31 is provided in the middle of the welding chamber 32. The top opening edge of the cavity 31 in the welding chamber 32 is provided with a flow-blocking block 33, which is correspondingly arranged around the forming hole wall 212 of the mold core 21.

[0032] Since the forming hole wall 212 has multiple forming holes 211, the flow rate of metal material is larger than that at the smooth outer wall 213. Therefore, by setting the flow blocking block 33, the flow rate of metal material at the forming hole wall 212 can be slowed down to balance the overall flow rate of metal material at the forming gap 40 of the aluminum profile, so as to ensure that the product does not deform or break.

[0033] In this embodiment, the connecting post 22 has a tapered bottom design, which facilitates the flow of metal material from the outer peripheral diversion hole 23 to the mold core 21.

[0034] Furthermore, such as Figure 6 and Figure 8 As shown, the connecting post 22 and the mold core 21 are respectively provided with guide holes 221 corresponding to the screw arm forming hole 2111. The guide holes 221 are downward and inward connected to the screw arm forming hole 2111. The connecting post 22 and the mold core 21 are also respectively provided with guide grooves 222 corresponding to the rib forming hole 2112. The guide grooves 222 extend downward close to the outer peripheral diversion hole 23 and extend downward to connect to the rib forming hole 2112. Depending on the size of the forming hole 211, the flow rate of metal material entering the forming hole 211 can be increased by setting guide holes 221 and guide grooves 222 to ensure that the strength and size of the formed special-shaped screw arm 12 and rib 13 meet the requirements.

[0035] See Figure 5 In this embodiment, the bottom of the central flow-diverting orifice 24 can be tapered and surround the outer periphery of each forming hole 211. This facilitates the collection of metal material within the central flow-diverting orifice 24, allowing the metal material to flow concentratedly towards each forming hole 211. Specifically, in this embodiment, the bottom of the central flow-diverting orifice 24 can form a trapezoidal chamber 241. The four corners of the bottom surface of the trapezoidal chamber 241 are respectively connected to the four screw arm forming holes 2111. The bottom of the trapezoidal chamber 241 is narrower, forming a tapering shape to facilitate the collection of metal material.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of this utility model should still fall within the protection scope of this utility model.

[0037] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. An extrusion die for an aluminum profile of a display lifting structure, comprising an upper die and a lower die, wherein the upper die and the lower die are fastened together, and the core of the upper die is fitted inside the cavity of the lower die; characterized in that: The mold core is located at the bottom of the connecting post protruding in the middle of the bottom surface of the upper mold. The outer periphery of the connecting post is provided with several circumferentially spaced and vertically penetrating the outer periphery of the upper mold. The top surface of the upper mold is also recessed with a central flow hole located above the connecting post. The mold core is placed inside the cavity, forming a gap for aluminum profile forming; the outer peripheral wall of the mold core is recessed inward with forming holes, including a larger screw arm forming hole and a smaller rib forming hole; both the screw arm forming hole and the rib forming hole penetrate downward through the bottom surface of the mold core, and the screw arm forming hole is also connected upward to the middle flow hole.

2. The extrusion die for an aluminum profile of a display lifting structure according to claim 1, characterized in that: The outer wall of the mold core is divided into a forming hole wall with forming holes and a smooth outer wall without forming holes; a welding chamber is recessed in the middle of the top surface of the lower mold, and the cavity is set in the middle of the welding chamber; a flow-blocking block is provided at the top opening edge of the cavity in the welding chamber, and the flow-blocking block is correspondingly arranged around the forming hole wall of the mold core.

3. The extrusion die for an aluminum profile of a display lifting structure according to claim 1, characterized in that: The connecting column has a tapered design at the bottom.

4. The extrusion die for an aluminum profile of a display lifting structure according to claim 1, characterized in that: The connecting post and the mold core are respectively provided with guide holes corresponding to the screw arm forming holes. The guide holes are downward and connected to the screw arm forming holes inward. The connecting post and the mold core are also respectively provided with guide grooves corresponding to the rib forming holes. The guide grooves extend downward close to the outer peripheral diversion holes and extend downward to connect to the rib forming holes.

5. The extrusion die for an aluminum profile of a display lifting structure according to claim 1, characterized in that: The bottom of the middle flow hole gradually narrows and can surround the outer periphery of each forming hole.

6. The extrusion die for an aluminum profile of a display lifting structure according to claim 1, characterized in that: The number of peripheral diversion holes is four.

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