Outer thread machining and forming die for movement mechanism assembly of automobile air conditioner shell

Abstract

The utility model relates to an injection molding mold, in particular to an external thread machining and forming mold for a movement mechanism assembly of an automobile air conditioner shell. Comprising a mold body, an injection molding hole is formed in the mold body, at least one injection molding cavity is formed in the mold body, the top end of the injection molding cavity is communicated with the injection molding hole, a rotating sleeve is arranged below the injection molding cavity and rotates through a driving assembly, an external thread molding cavity is formed below the rotating sleeve, and the external thread molding cavity is communicated with the injection molding hole. And internal thread teeth are arranged in the external thread forming cavity. By the adoption of the scheme, the external thread machining forming die for the movement mechanism assembly of the automobile air conditioner shell can improve the production efficiency and is high in practicability.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to an external thread processing and forming mold for a component of an automotive air-conditioning housing movement mechanism. Background Art

[0002] As Figure 6 shown, one plastic component of the automotive air-conditioning housing movement mechanism has a hinge hole structure at one end and an external thread structure 100 needs to be processed at the other end. In the prior art, after the injection molding into a cylinder, the external thread is processed, which requires an additional process, including intermediate processes such as workpiece transfer, resulting in a waste of a large amount of human and material resources and reducing production efficiency. Summary of the Utility Model

[0003] The utility model aims to provide an external thread processing and forming mold for a component of an automotive air-conditioning housing movement mechanism that can automatically process the external thread of the plastic component after injection molding.

[0004] An external thread processing and forming mold for a component of an automotive air-conditioning housing movement mechanism in this solution includes a mold body. An injection hole is provided on the mold body. At least one injection molding cavity is provided in the mold body. The top end of the injection molding cavity communicates with the injection hole. A rotating sleeve is provided below the injection molding cavity. The rotating sleeve rotates through a driving component. An external thread forming cavity is provided below the rotating sleeve. Internal thread teeth are provided in the external thread forming cavity.

[0005] Further, a conveying cavity is provided between the injection molding cavity and the external thread forming cavity.

[0006] Further, the driving component includes a cylinder, a rack, and a driving gear. The push rod of the cylinder fixes the rack. The rack meshes with the driving gear. A driven gear is fixedly sleeved outside the rotating sleeve. The driving gear meshes with the driven gear.

[0007] Further, a speed-changing gear is further provided between the driving gear and the driven gear. The speed-changing gear is coaxially arranged with the driving gear. The speed-changing gear meshes with the driven gear.

[0008] Further, two guide columns are provided at one end of the mold body. The cylinder is arranged at the free ends of the two guide columns. The cylinder is fixedly arranged between the two guide columns. The rack is located in the gap between the two guide columns. One end of the rack is bolted to the push rod of the cylinder. A limit switch is provided at the other end of the rack.

[0009] Further, a cooling pipe is provided in the mold body. The cooling pipe passes through the injection molding cavity.

[0010] Further, a limiting platform is fixedly installed at the free end of the rack, and the limiting platform contacts the touch rod of the limit switch.

[0011] The advantages of the present utility model are as follows: The injection molding liquid enters the injection molding cavity, the conveying cavity, and the external thread molding cavity through the injection hole. The injection molded part forms external thread teeth in the external thread molding cavity. The driving component rotates to rotate the injection molded part with formed threads out of the external thread molding cavity, completing the unloading. This mold completes the external thread tooth structure in one injection molding and automatically ejects the part, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of an external thread processing and forming mold for a moving mechanism component of an automotive air conditioner housing according to the present utility model;

[0013] Figure 2 is a schematic structural diagram of an external thread processing and forming mold for a moving mechanism component of an automotive air conditioner housing according to the present utility model from a second angle;

[0014] Figure 3 is a schematic structural diagram of an external thread processing and forming mold for a moving mechanism component of an automotive air conditioner housing according to the present utility model from a third angle;

[0015] Figure 4 is Figure 3 an enlarged view of part A in

[0016] Figure 5 is an overall external view schematic diagram of an external thread processing and forming mold for a moving mechanism component of an automotive air conditioner housing according to the present utility model;

[0017] Figure 6 is a schematic structural diagram of a plastic part processed by an external thread processing and forming mold for a moving mechanism component of an automotive air conditioner housing according to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:

[0019] According to Figures 1 to 5As shown in the figure, the present utility model provides an external thread processing and forming die for an automotive air-conditioning housing movement mechanism assembly, including a die body 1. An injection hole 2 is provided on the die body 1. At least one injection molding cavity 3 is provided inside the die body 1. In this embodiment, there are two symmetrically arranged injection molding cavities 3. The top of the injection molding cavity 3 communicates with the injection hole 2. A rotating sleeve 4 is provided below the injection molding cavity 3. The rotating sleeve 4 is rotated by a driving assembly 5. An external thread forming cavity 6 is provided below the rotating sleeve 4. Internal thread teeth are provided inside the external thread forming cavity 6. The external thread forming cavity 6 is used to form the external thread tooth structure of the injection workpiece. The driving assembly 5 drives the rotating sleeve 4 to achieve automatic unloading.

[0020] As a further improvement of this embodiment, a conveying cavity 7 is provided between the injection molding cavity 3 and the external thread forming cavity 6. Through the conveying cavity 7, the injection liquid can be effectively sent to the external thread forming cavity 6.

[0021] As a further improvement of this embodiment, the driving assembly 5 includes a cylinder 5-1, a rack 5-2, and a driving gear 5-3. The push rod of the cylinder 5-1 fixes the rack 5-2. The rack 5-2 meshes with the driving gear 5-3. A driven gear 4-1 is fixedly sleeved outside the rotating sleeve 4. The driving gear 5-3 meshes with the driven gear 4-1. The cylinder 5-1 drives the rack 5-2 to move forward and backward. The rack 5-2 drives the driving gear 5-3, and the driving gear 5-3 drives the driven gear 4-1.

[0022] As a further improvement of this embodiment, a speed-changing gear 5-4 is further provided between the driving gear 5-3 and the driven gear 4-1. The speed-changing gear 5-4 is coaxially arranged with the driving gear 5-3. The diameters of the speed-changing gear 5-4 and the driving gear 5-3 are different, which plays a role in changing the transmission speed. The speed-changing gear 5-4 meshes with the driven gear 4-1.

[0023] As a further improvement of this embodiment, two guide posts 5-5 are provided at one end of the die body 1. The free ends of the two guide posts 5-5 are provided with the cylinder 5-1. The cylinder 5-1 is fixedly arranged between the two guide posts 5-5. The rack 5-2 is located in the gap between the two guide posts 5-5. The guide post 5-5 structure is used to improve the stroke of the rack 5-2 and ensure smooth unloading. One end of the rack 5-2 is bolt-fixed to the push rod of the cylinder 5-1. A limit switch 8 is provided at the other end of the rack 5-2. The limit switch 8 is used to limit the linear displacement stroke of the rack 5-2 to avoid workpiece damage caused by excessive advancement.

[0024] As a further improvement of this embodiment, a cooling pipe 9 is provided in the mold body 1, and the cooling pipe 9 passes through the injection molding cavity 3. The cooling pipe 9 can accelerate the cooling speed after injection molding, shorten the production time, and improve the production efficiency.

[0025] As a further improvement of this embodiment, a limiting platform 5-6 is fixedly installed at the free end of the rack 5-2. The limiting platform 5-6 contacts the touch rod of the limit switch 8, and the limit switch 8 can be activated by the limiting platform 5-6 touching the touch rod.

[0026] The above are only the embodiments of the present invention. Specific structures and characteristics and other common knowledge well known in the art are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A mold for processing and forming external threads of a moving mechanism component of an automobile air-conditioning housing, comprising a mold body (1), wherein the mold body (1) is provided with an injection hole (2), and characterized in that: At least one injection molding cavity (3) is provided in the mold body (1), the top of the injection molding cavity (3) is connected to the injection hole (2), a rotating sleeve (4) is provided below the injection molding cavity (3), the rotating sleeve (4) is rotated by a driving component (5), an external thread molding cavity (6) is provided below the rotating sleeve (4), and internal thread teeth are provided in the external thread molding cavity (6).

2. The external thread processing and forming die for the moving mechanism assembly of the automobile air conditioner housing according to claim 1, characterized in that: A conveying cavity (7) is provided between the injection molding cavity (3) and the external thread molding cavity (6).

3. The external thread processing and forming die for the moving mechanism assembly of the automobile air-conditioning housing according to claim 1, characterized in that: The driving assembly (5) comprises a cylinder (5-1), a rack (5-2), and a driving gear (5-3); the push rod of the cylinder (5-1) fixes the rack (5-2), and the rack (5-2) meshes with the driving gear (5-3); the rotating sleeve (4) is provided with a driven gear (4-1) on the outer fixed sleeve, and the driving gear (5-3) meshes with the driven gear (4-1).

4. The external thread processing and forming die for the moving mechanism assembly of the automobile air conditioner housing according to claim 3, characterized in that: A speed change gear (5-4) is also provided between the driving gear (5-3) and the driven gear (4-1); the speed change gear (5-4) is coaxially arranged with the driving gear (5-3), and the speed change gear (5-4) meshes with the driven gear (4-1).

5. The external thread processing and forming die for the moving mechanism assembly of the automobile air conditioner housing according to claim 3, characterized in that: Two guide pillars (5-5) are provided at one end of the mold body (1), the cylinder (5-1) is provided at the free ends of the two guide pillars (5-5), the cylinder (5-1) is fixedly arranged between the two guide pillars (5-5), the rack (5-2) is located in the gap between the two guide pillars (5-5), one end of the rack (5-2) is bolted to the push rod of the cylinder (5-1), and a limit switch (8) is provided at the other end of the rack (5-2).

6. The external thread processing and forming die for the moving mechanism assembly of the automobile air conditioner housing according to claim 1, characterized in that: A cooling pipe (9) is provided in the mold body (1), and the cooling pipe (9) passes through the injection molding cavity (3).

7. The external thread processing and forming die for the moving mechanism assembly of the automobile air conditioner housing according to claim 5, characterized in that: A limit platform (5-6) is fixedly mounted on the free end of the rack (5-2), and the limit platform (5-6) contacts the touch rod of the limit switch (8).

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