Locking mechanism of automobile part injection mold

Abstract

The utility model provides a locking mechanism of an automobile part injection mold, which comprises a bottom plate, a lower mold and mold closing mechanisms, the top of the bottom plate is fixedly connected with the bottom of the lower mold, the four corners of the bottom plate are fixedly connected with limiting plates, and the mold closing mechanisms are arranged on the left side and the right side of the top of the bottom plate. And the mold closing mechanism comprises a toothed plate, a gear, a rotating motor and a fixing plate, the rear side of the fixing plate is fixedly connected with the surface of the limiting plate, the top of the fixing plate is fixedly connected with the bottom of the rotating motor, and the output end of the rotating motor is fixedly connected with the right side of the gear. Through the mold closing mechanism, when the upper mold and the lower mold are combined for use, a rotating motor drives a gear to rotate, so that the upper mold moves up and down, operation of workers is facilitated, and through arrangement of a matching column and a limiting plate, the moving direction and stroke of the upper mold in the up-down moving process can be fully limited; and damage caused by stroke exceeding during use is prevented.

Description

Technical Field

[0001] The utility model relates to a locking mechanism of an injection mold for automobile parts, belonging to the technical field of hot extrusion molds. Background Art

[0002] An injection mold is an essential part in the production of plastic products, and its design and manufacturing quality directly affect the quality of the finished product and production efficiency. The necessity of an injection mold in the production of automobile parts lies in its ability to efficiently and precisely manufacture complex automobile parts, while reducing costs and improving production efficiency.

[0003] Chinese Patent Publication (Publication No.: CN 220095319 U) discloses a positioning mechanism of an injection mold for automobile parts. Aiming at the problems of the existing positioning mechanism being inconvenient to use, troublesome to correct deviation, complex in structure and high in cost, which greatly reduces the use efficiency, the following solution is proposed. It includes a bottom plate, two brackets are symmetrically and fixedly installed at the bottom of the bottom plate, a placement plate is slidably installed on the top of the bottom plate, two fixing plates are symmetrically and fixedly installed on the top of the placement plate, a fixing device is movably installed on the two fixing plates, an installation frame is fixedly installed on the top of the bottom plate, a hydraulic rod is fixedly installed on the installation frame, an installation plate is fixedly installed on the output shaft of the hydraulic rod, a plurality of installation holes are formed in the installation plate, and a positioning device is fixedly installed on the installation plate and the placement plate. The utility model is convenient to use and can correct the deviation when the mold has deviation during processing and positioning, greatly improving the use efficiency;

[0004] However, in the above technology, during the use process, gaps may appear between the upper and lower molds due to the long-term use of the injection mold, and it is not convenient for workers to operate when docking the upper and lower molds. As a result, the unqualified products injected increase the scrap rate and the product cost at the same time. If the upper and lower molds cannot be stably closed, it is more troublesome to adjust the mold before each production, increasing the work difficulty and unable to effectively improve the work efficiency.

[0005] Therefore, a locking mechanism of an injection mold for automobile parts is proposed. Summary of the Utility Model

[0006] In view of this, the utility model provides a locking mechanism of an injection mold for automobile parts to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the utility model is realized as follows: A locking mechanism for an injection mold of an automotive component, including a bottom plate, a lower mold, and a mold clamping mechanism. The top of the bottom plate is fixedly connected to the bottom of the lower mold. Limit plates are fixedly connected to the four corners of the bottom plate. Mold clamping mechanisms are arranged on the left and right sides of the top of the bottom plate. The mold clamping mechanism includes a toothed plate, a gear, a rotating motor, and a fixing plate. The rear side of the fixing plate is fixedly connected to the surface of the limit plate. The top of the fixing plate is fixedly connected to the bottom of the rotating motor. The output end of the rotating motor is fixedly connected to the right side of the gear. The front side of the gear meshes with the rear side of the toothed plate. The bottom of the toothed plate contacts the top of the bottom plate.

[0008] Further preferably, an upper mold is arranged on the top of the lower mold. A matching column is fixedly connected to the top of the lower mold. The top of the matching column penetrates through the top of the upper mold. The bottom of the upper mold is fixedly connected to the top of the toothed plate. The upper mold is slidably connected to the inside of the limit plate.

[0009] Further preferably, connecting plates are fixedly connected to the front and rear sides of the top of the bottom plate. A positioning block is fixedly connected to the top of the upper mold. A cavity is formed inside the positioning block. A positioning mechanism is arranged inside the cavity. The positioning mechanism includes a moving rod, a positioning rod, and a tension spring.

[0010] Further preferably, the front side of the moving rod at the rear side penetrates through the front side of the positioning block. The rear side of the moving rod penetrates through the inside of the cavity. The rear side of the moving rod is fixedly connected to the front side of the tension spring. The rear side of the tension spring is fixedly connected to the inner wall of the cavity. The tension spring is sleeved on the surface of the positioning rod. The front side of the positioning rod is fixedly connected to the rear side of the moving rod. The rear side of the positioning rod penetrates through the inside of the connecting plate.

[0011] Further preferably, a fixing groove is formed on the surface of the connecting plate. When the positioning rod is inserted into the fixing groove, they are in close contact.

[0012] Further preferably, a limiting groove is formed inside the cavity. A limiting rod is fixedly connected to the bottom of the moving rod. The limiting rod is slidably connected to the inside of the limiting groove.

[0013] Further preferably, the number of the matching columns is four and they are respectively located at the four corners of the lower mold.

[0014] Due to the adoption of the above technical solutions in the embodiments of the utility model, it has the following advantages:

[0015] 1. The utility model can, through the mold clamping mechanism, drive the gear to rotate by the rotating motor when the upper mold and the lower mold are combined, so that the upper mold moves up and down, which is convenient for the staff to operate. By setting the matching column and the limiting plate, the moving direction and stroke of the upper mold during the up and down movement can be fully restricted, preventing damage caused by exceeding the stroke during use.

[0016] 2. The utility model can, through the positioning mechanism, drive the positioning rod to move by pulling the moving rod when the lower mold and the upper mold are clamped and docked, so as to stably fix the upper mold and prevent gaps from appearing at the connection during docking, resulting in a decline in product quality.

[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic front three-dimensional structure diagram of the utility model;

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

[0021] Figure 3 It is of the utility model Figure 2 Schematic diagram of the partial enlarged structure at A in;

[0022] Figure 4 It is a schematic structure diagram of the mold clamping mechanism of the utility model;

[0023] Figure 5 It is a schematic structure diagram of the bottom plate of the utility model.

[0024] Reference numerals: 1, bottom plate; 2, lower mold; 3, mold clamping mechanism; 301, toothed plate; 302, gear; 303, rotating motor; 304, fixing plate; 4, limiting plate; 5, upper mold; 6, matching column; 7, connecting plate; 8, positioning block; 9, cavity; 10, positioning mechanism; 1001, moving rod; 1002, positioning rod; 1003, tension spring; 11, fixing groove; 12, limiting groove; 13, limiting rod. Detailed implementation manners

[0025] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0027] Embodiment 1

[0028] As shown in Figures 1-5 the figure, the embodiment of the present utility model provides a locking mechanism for an injection mold of an automotive component, including a bottom plate 1, a lower mold 2 and a mold clamping mechanism 3. The top of the bottom plate 1 is fixedly connected to the bottom of the lower mold 2. Limit plates 4 are fixedly connected to the four corners of the bottom plate 1. Mold clamping mechanisms 3 are arranged on the left and right sides of the top of the bottom plate 1. The mold clamping mechanism 3 includes a toothed plate 301, a gear 302, a rotating motor 303 and a fixing plate 304. The rear side of the fixing plate 304 is fixedly connected to the surface of the limit plate 4. The top of the fixing plate 304 is fixedly connected to the bottom of the rotating motor 303. The output end of the rotating motor 303 is fixedly connected to the right side of the gear 302. The front side of the gear 302 meshes with the rear side of the toothed plate 301. The bottom of the toothed plate 301 contacts the top of the bottom plate 1. An upper mold 5 is arranged on the top of the lower mold 2. A mating post 6 is fixedly connected to the top of the lower mold 2. The top of the mating post 6 penetrates through the top of the upper mold 5. The bottom of the upper mold 5 is fixedly connected to the top of the toothed plate 301. The upper mold 5 is slidably connected to the inside of the limit plate 4. The number of the mating posts 6 is four and they are respectively located at the four corners of the lower mold 2.

[0029] Through the mold clamping mechanism 3, when the upper mold 5 and the lower mold 2 are combined and used, the rotating motor 303 can drive the gear 302 to rotate, so that the upper mold 5 moves up and down, which is convenient for the staff to operate. By arranging the mating posts 6 and the limit plates 4, the moving direction and stroke of the upper mold 5 during the up and down movement can be fully restricted, preventing damage caused by exceeding the stroke during use.

[0030] Embodiment 2

[0031] In one embodiment, connecting plates 7 are fixedly connected to the front and rear sides of the top of the bottom plate 1. A positioning block 8 is fixedly connected to the top of the upper mold 5. A cavity 9 is formed inside the positioning block 8. A positioning mechanism 10 is provided inside the cavity 9. The positioning mechanism 10 includes a moving rod 1001, a positioning rod 1002, and a tension spring 1003. The front side of the rear moving rod 1001 penetrates to the front side of the positioning block 8. The rear side of the moving rod 1001 penetrates to the inside of the cavity 9. The rear side of the moving rod 1001 is fixedly connected to the front side of the tension spring 1003. The rear side of the tension spring 1003 is fixedly connected to the inner wall of the cavity 9. The tension spring 1003 is sleeved on the surface of the positioning rod 1002. The front side of the positioning rod 1002 is fixedly connected to the rear side of the moving rod 1001. The rear side of the positioning rod 1002 penetrates to the inside of the connecting plate 7. A fixing groove 11 is formed on the surface of the connecting plate 7. When the positioning rod 1002 is inserted into the fixing groove 11, they are in close contact. A limiting groove 12 is formed inside the cavity 9. A limiting rod 13 is fixedly connected to the bottom of the moving rod 1001. The limiting rod 13 is slidably connected to the inside of the limiting groove 12.

[0032] Through the positioning mechanism 10, when the lower mold 2 and the upper mold 5 are being closed and docked, by pulling the moving rod 1001, the moving rod 1001 drives the positioning rod 1002 to move, stably fixing the upper mold 5 and preventing gaps from appearing at the connection during docking, which may lead to a decline in product quality.

[0033] When the present utility model is in operation: First, pull the moving rod 1001 forward. The moving rod 1001 drives the positioning rod 1002 to move forward along the moving trajectory provided by the limiting groove 12. While the positioning rod 1002 moves forward, it stretches the tension spring 1003, causing the positioning rod 1002 to move into the positioning cavity. Just operate in the opposite direction on the other side. At this time, start the rotating motor 303. The rotating motor 303 drives the gear 302 to rotate. Through the meshing of the gear 302 and the toothed plate 301, the upper mold 5 slowly descends. When the upper mold 5 descends to fit with the lower mold 2, release the moving rod 1001. Through the pulling force of the tension spring 1003, the positioning rod 1002 is inserted into the fixing groove 11, making the lower mold 2 and the upper mold 5 fit tightly.

[0034] The above is only the specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A locking mechanism for an injection mold of an automobile part, characterized in that: The invention comprises a bottom plate (1), a lower mould (2) and a mould clamping mechanism (3), wherein the top of the bottom plate (1) is fixedly connected to the bottom of the lower mould (2), the four corners of the bottom plate (1) are fixedly connected to a limit plate (4), the left and right sides of the top of the bottom plate (1) are provided with a mould clamping mechanism (3), the mould clamping mechanism (3) comprises a tooth plate (301), a gear (302), a rotating motor (303) and a fixed plate (304), the rear side of the fixed plate (304) is fixedly connected to the surface of the limit plate (4), the top of the fixed plate (304) is fixedly connected to the bottom of the rotating motor (303), the output end of the rotating motor (303) is fixedly connected to the right side of the gear (302), the front side of the gear (302) is meshed with the rear side of the tooth plate (301), and the bottom of the tooth plate (301) is in contact with the top of the bottom plate (1).

2. The locking mechanism of an automobile component injection mold according to claim 1, characterized in that: An upper mold (5) is arranged on the top of the lower mold (2), a matching column (6) is fixedly connected to the top of the lower mold (2), the top of the matching column (6) passes through the top of the upper mold (5), the bottom of the upper mold (5) is fixedly connected to the top of the tooth plate (301), and the upper mold (5) is slidably connected to the inner side of the limit plate (4).

3. The locking mechanism of an automobile component injection mold according to claim 2, characterized in that: The front and rear sides of the top of the bottom plate (1) are fixedly connected to connecting plates (7), the top of the upper mold (5) is fixedly connected to a positioning block (8), a cavity (9) is provided inside the positioning block (8), a positioning mechanism (10) is provided inside the cavity (9), and the positioning mechanism (10) comprises a moving rod (1001), a positioning rod (1002) and a tension spring (1003).

4. The locking mechanism of an automobile component injection mold according to claim 3, characterized in that: The front side of the movable rod (1001) on the rear side passes through the front side of the positioning block (8), the rear side of the movable rod (1001) passes through the interior of the cavity (9), the rear side of the movable rod (1001) is fixedly connected to the front side of the tension spring (1003), the rear side of the tension spring (1003) is fixedly connected to the inner wall of the cavity (9), the tension spring (1003) is sleeved on the surface of the positioning rod (1002), the front side of the positioning rod (1002) is fixedly connected to the rear side of the movable rod (1001), and the rear side of the positioning rod (1002) passes through the interior of the connecting plate (7).

5. The locking mechanism of the automobile component injection mold according to claim 4, characterized in that: A fixing groove (11) is provided on the surface of the connecting plate (7), and the positioning rod (1002) is in tight contact with the fixing groove (11) when plugged in.

6. The locking mechanism of an automobile component injection mold according to claim 4, characterized in that: A limiting groove (12) is provided inside the cavity (9), and the bottom of the moving rod (1001) is fixedly connected to a limiting rod (13), and the limiting rod (13) is slidably connected to the inside of the limiting groove (12).

7. The locking mechanism of an automobile component injection mold according to claim 2, characterized in that: The number of the matching columns (6) is four and they are respectively located at the four corners of the lower mold (2).

Images