External inclined core-pulling mechanism of secondary demolding injection mold for automobile seat headrest cover

Abstract

The utility model relates to the technical field of mold processing devices, in particular to an external inclined core-pulling mechanism of an injection mold for secondary demolding of an automobile seat headrest cover, which comprises an injection mold, an injection molding part is arranged in an inner cavity of the injection mold, and an inclined core-pulling component is embedded in one side of the injection molding part and positioned on the side wall of the injection mold. The oil cylinder and the inclined sliding groove are matched with each other to drive the connecting piece to move, then the lifting block and the embedded needle are driven to ascend, small hole core pulling of an injection molding part is achieved, the inclined guide column is used for driving the sliding block to move outwards to achieve hole core pulling of the injection molding part during mold opening, and the installation base is magnetically attracted to the outer wall of an injection mold for fixing. And then a mounting block is pulled, so that the mounting block drives a sliding rod to slide on the inner wall of a fixed sliding groove, the mounting block drives the storage shell to move to a proper position, and then the injection molding part obtained after demolding can be placed in an inner cavity of the storage shell.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing devices, in particular to an externally arranged oblique core-pulling mechanism of a secondary demoulding injection mold for a car seat headrest cover. Background Art

[0002] The production process for automotive seat headrest covers utilizes secondary mold release technology. However, this technology presents a significant problem in practical application: the secondary mold release after the initial injection molding process is inconvenient. This inconvenience is primarily due to the increased complexity of the mold release operation, which requires more precise manipulation and time investment, thus affecting overall production efficiency and manufacturing costs.

[0003] Specifically, the original intention of designing a two-stage demoulding injection mold was to improve the precision and appearance quality of the product by achieving accurate replication of complex structures through staged injection and gradual demoulding. However, in actual operation, due to the complex mold structure and the unique shape of the product itself, the various parts of the mold are difficult to separate smoothly during the second demoulding, often resulting in mold sticking or damage to the product. This not only reduces production yield, but also increases the need for mold repair and secondary processing, thereby increasing production costs;

[0004] The mold did not provide a dedicated storage device for the injection molded parts after demoulding. This resulted in the injection molded parts having to be manually transferred to the storage rack after production. This process was not only time-consuming and cumbersome, but also seriously affected overall production efficiency.

[0005] Therefore, an external oblique core-pulling mechanism of a secondary demoulding injection mold for a car seat headrest cover is needed to improve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an external oblique core-pulling mechanism for a secondary demoulding injection mold of a car seat headrest cover, so as to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An external oblique core-pulling mechanism for a secondary demoulding injection mold for a car seat headrest cover comprises an injection mold, an injection molded part is provided in an inner cavity of the injection mold, and an oblique core-pulling assembly is embedded and installed on one side of the injection molded part and located on a side wall of the injection mold;

[0009] The inclined core-pulling assembly includes a first fixed block and a second fixed block, the first fixed block being embedded in the side wall of the injection mold, an oil cylinder being installed on the outer wall of the first fixed block, a fixed seat being installed at one end of the oil cylinder, an inclined slide groove being provided on the outer wall of the fixed seat, a connecting piece being slidably connected on the inner wall of the inclined slide groove, one end of the connecting piece being slidably connected to the lifting block, one end of the lifting block being installed with an embedding needle, one end of the embedding needle being connected to the injection molded part, the second fixed block being embedded in the side wall of the injection mold, a slider being installed on the outer wall of the second fixed block, an inclined guide column being provided on the outer wall of the slider, a buffer spring being embedded in the side wall of the slider, a core-pulling rod being embedded on one side of the buffer spring and located on the outer wall of the slider, and one end of the core-pulling rod being connected to the injection molded part.

[0010] As a preferred solution of the present invention, it also includes a storage component, which includes a mounting base, and the mounting base is provided in two groups and is respectively installed on the opposite outer walls of the injection mold, a mounting plate is installed on the outer wall of the mounting base, and a fixed slide groove is opened on the outer wall of the mounting plate, a slide rod is slidably connected to the inner wall of the fixed slide groove, a mounting block is rotatably connected to the outer wall of the slide rod, and a storage shell is installed on the inner wall of the mounting block.

[0011] As a preferred solution of the present invention, the second fixed block is located on one side of the first fixed block, and the oil cylinder and the inclined slide cooperate with each other to drive the connecting member to move.

[0012] As a preferred solution of the present invention, the core-pulling rod is located on one side of the inserting needle, and the inserting needle is provided in two groups and is respectively located on the outer wall of the lifting block.

[0013] As a preferred solution of the present invention, the lifting block is located on one side of the injection molded part, the slider is located directly below the first fixed block, the inclined guide columns are provided in two groups and are respectively located on the outer wall of the slider, and the buffer springs are provided in two groups and are respectively located on the side walls of the slider.

[0014] As a preferred solution of the present invention, two groups of core pulling rods are provided and are respectively located on the outer wall of the slider. The material of the mounting base is a strong magnetic material, and the mounting base and the injection mold are connected by magnetic connection.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This utility model utilizes an externally positioned oblique core-pulling mechanism in the secondary demolding injection mold for the automotive seat headrest cover. The hydraulic cylinder and oblique slideway cooperate to drive the connector, which in turn drives the lifting block and insert pin upwards, achieving core-pulling of the small holes in the molded part. During mold opening, an oblique guide column drives the slider outward to achieve core-pulling of the molded part's holes. This helps address the difficulty in smoothly separating mold components, which often results in mold sticking or product damage. This not only reduces production yield but also increases the need for mold repair and secondary processing, thereby increasing production costs.

[0017] 2. In the present invention, the secondary demolding injection mold for the automobile headrest cover utilizes an externally mounted oblique core-pulling mechanism, and the mounting base is magnetically attached to the outer wall of the injection mold for fixation. The mounting block is then pulled, causing the mounting block to drive the slide rod to slide along the inner wall of the fixed slide groove, causing the mounting block to move the storage housing to the appropriate position. The demolded injection molded part can then be placed in the inner cavity of the storage housing, thereby resolving the issue of the mold not providing a dedicated storage device for the injection molded part after demolding. This results in the injection molded parts having to be manually transferred to the storage rack after production, a process that is not only time-consuming and cumbersome, but also seriously affects overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the oblique core pulling component of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the first fixed block of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the second fixing block of the present utility model.

[0022] In the figure: 1. Injection mold; 2. Injection molded part; 3. Oblique core-pulling assembly; 301. First fixed block; 302. Second fixed block; 303. Cylinder; 304. Fixed seat; 305. Oblique slide; 306. Connector; 307. Lifting block; 308. Insert pin; 309. Slider; 310. Oblique guide column; 311. Buffer spring; 312. Core-pulling rod; 4. Storage assembly; 401. Mounting base; 402. Mounting plate; 403. Fixed slide; 404. Slide; 405. Mounting block; 406. Storage shell. DETAILED DESCRIPTION

[0023] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] An external oblique core-pulling mechanism for a secondary demoulding injection mold for a car seat headrest cover comprises an injection mold 1, an injection molded part 2 is provided in an inner cavity of the injection mold 1, and an oblique core-pulling assembly 3 is embedded and installed on one side of the injection molded part 2 and located on the side wall of the injection mold 1;

[0026] In this embodiment, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The inclined core pulling assembly 3 includes a first fixed block 301 and a second fixed block 302. The first fixed block 301 is embedded in the side wall of the injection mold 1. A cylinder 303 is installed on the outer wall of the first fixed block 301. A fixed seat 304 is installed at one end of the cylinder 303. An inclined slot 305 is provided on the outer wall of the fixed seat 304. A connecting piece 306 is slidably connected to the inner wall of the inclined slot 305. One end of the connecting piece 306 is slidably connected to a lifting block 307. One end of the lifting block 307 An embedding pin 308 is installed, one end of the embedding pin 308 is connected to the injection molded part 2, the second fixed block 302 is embedded in the side wall of the injection mold 1, a slider 309 is installed on the outer wall of the second fixed block 302, an inclined guide column 310 is provided on the outer wall of the slider 309, a buffer spring 311 is embedded in the side wall of the slider 309, a core pulling rod 312 is embedded on one side of the buffer spring 311 and located on the outer wall of the slider 309, and one end of the core pulling rod 312 is connected to the injection molded part 2.

[0027] In this embodiment, please refer to Figure 1 , also includes a storage component 4, the storage component 4 includes a mounting base 401, the mounting base 401 is provided with two groups and is respectively mounted on the opposite outer walls of the injection mold 1, a mounting plate 402 is mounted on the outer wall of the mounting base 401, and a fixed slide 403 is opened on the outer wall of the mounting plate 402, a slide rod 404 is slidably connected to the inner wall of the fixed slide 403, a mounting block 405 is rotatably connected to the outer wall of the slide rod 404, and a storage shell 406 is mounted on the inner wall of the mounting block 405.

[0028] Furthermore, the second fixed block 302 is located on one side of the first fixed block 301, the oil cylinder 303 and the inclined slide groove 305 cooperate with each other to drive the connecting part 306 to move, the core pulling rod 312 is located on one side of the inserting needle 308, the inserting needle 308 is provided with two groups and is respectively located on the outer wall of the lifting block 307, the lifting block 307 is located on one side of the injection molded part 2, the slider 309 is located directly below the first fixed block 301, the inclined guide column 310 is provided with two groups and is respectively located on the outer wall of the slider 309, the buffer spring 311 is provided with two groups and is respectively located on the side wall of the slider 309, the core pulling rod 312 is provided with two groups and is respectively located on the outer wall of the slider 309, the mounting base 401 is made of a strong magnetic material, and the mounting base 401 and the injection mold 1 are connected by a magnetic connection.

[0029] The working process of the present invention is as follows: when the external inclined core-pulling mechanism of the secondary demolding injection mold of the car seat headrest cover designed by this scheme works, the oil cylinder 303 and the inclined slide groove 305 cooperate with each other to drive the connecting part 306 to move, thereby driving the lifting block 307 and the inserting needle 308 to rise, realizing the core pulling of the small hole of the injection molded part 2. At the same time, a slider 309 is installed on the outer wall of the second fixed block 302, and an inclined guide column 310 is provided on the outer wall of the slider 309. A buffer spring 311 is embedded in the side wall of the slider 309, and a core-pulling rod 312 is embedded in the outer wall of the slider 309 on one side of the buffer spring 311. One end of the core-pulling rod 312 is connected to the injection molded part 2. When the mold is opened, the inclined guide column 310 is used to drive the slider 309 to move outward to realize the core pulling of the hole of the injection molded part 2, which is beneficial to solve the problem that the various parts of the mold are difficult to separate smoothly, and often stick to the mold or damage the product. This not only reduces production yield, but also increases the need for mold repair and secondary processing, thereby increasing production costs.

[0030] By providing two groups of mounting bases 401 and respectively mounting them on opposite outer walls of the injection mold 1, mounting plates 402 are mounted on the outer walls of the mounting base 401, the mounting base 401 is made of a strong magnetic material, and the mounting base 401 and the injection mold 1 are connected in a magnetic manner, the mounting base 401 is magnetically adsorbed on the outer wall of the injection mold 1 for fixation, a fixed slide 403 is provided on the outer wall of the mounting plate 402, and a slide rod 404 is slidably connected to the inner wall of the fixed slide 403, and the slide rod 404 is connected to the outer wall of the fixed slide 403. 04 is rotatably connected to a mounting block 405, and a storage housing 406 is mounted on the inner wall of the mounting block 405. The mounting block 405 is then pulled, causing the mounting block 405 to drive the slide bar 404 to slide on the inner wall of the fixed slide groove 403, so that the mounting block 405 drives the storage housing 406 to move to the appropriate position. The molded part 2 can then be placed in the inner cavity of the storage housing 406 after demolding. This helps solve the problem of not providing a dedicated storage device for the molded part after the mold is demolded. This results in the injection molded parts having to be manually transferred to the storage rack after production is completed. This process is not only time-consuming and cumbersome, but also seriously affects the overall production efficiency.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external oblique core pulling mechanism for a secondary demoulding injection mold for a car seat headrest cover, comprising an injection mold (1), characterized in that: The inner cavity of the injection mold (1) is provided with an injection molded part (2), and an inclined core pulling component (3) is embedded and installed on one side of the injection molded part (2) and located on the side wall of the injection mold (1); The inclined core pulling assembly (3) comprises a first fixed block (301) and a second fixed block (302), wherein the first fixed block (301) is embedded in the side wall of the injection mold (1), an oil cylinder (303) is installed on the outer wall of the first fixed block (301), a fixed seat (304) is installed at one end of the oil cylinder (303), an inclined slide groove (305) is provided on the outer wall of the fixed seat (304), a connecting piece (306) is slidably connected to the inner wall of the inclined slide groove (305), one end of the connecting piece (306) is slidably connected to a lifting block (307), and one end of the lifting block (307) is slidably connected to the inner wall of the inclined slide groove (305). An insert pin (308) is installed at one end of the insert pin (308), one end of the insert pin (308) is connected to the injection molded part (2), the second fixed block (302) is embedded in the side wall of the injection mold (1), a slider (309) is installed on the outer wall of the second fixed block (302), an inclined guide column (310) is provided on the outer wall of the slider (309), a buffer spring (311) is embedded in the side wall of the slider (309), a core pulling rod (312) is embedded on one side of the buffer spring (311) and located on the outer wall of the slider (309), and one end of the core pulling rod (312) is connected to the injection molded part (2).

2. The externally-mounted oblique core-pulling mechanism of the secondary demoulding injection mold for a car seat headrest cover according to claim 1, characterized in that: The invention also includes a storage component (4), wherein the storage component (4) includes a mounting base (401), wherein the mounting base (401) is provided in two groups and is respectively mounted on opposite outer walls of the injection mold (1), wherein a mounting plate (402) is mounted on the outer wall of the mounting base (401), and a fixed slide groove (403) is provided on the outer wall of the mounting plate (402), wherein a slide rod (404) is slidably connected to the inner wall of the fixed slide groove (403), wherein a mounting block (405) is rotatably connected to the outer wall of the slide rod (404), and a storage housing (406) is mounted on the inner wall of the mounting block (405).

3. The externally-mounted oblique core-pulling mechanism of the secondary demoulding injection mold for the automobile seat headrest cover according to claim 1, characterized in that: The second fixed block (302) is located on one side of the first fixed block (301), and the oil cylinder (303) and the inclined slide groove (305) cooperate with each other to drive the connecting member (306) to move.

4. The externally-mounted oblique core-pulling mechanism of the secondary demoulding injection mold for a car seat headrest cover according to claim 1, characterized in that: The core-pulling rod (312) is located on one side of the embedded needle (308), and the embedded needle (308) is provided in two groups and is respectively located on the outer wall of the lifting block (307).

5. The externally-mounted oblique core-pulling mechanism of the secondary demoulding injection mold for the automobile seat headrest cover according to claim 1, characterized in that: The lifting block (307) is located on one side of the injection molded part (2), the slider (309) is located directly below the first fixed block (301), two groups of inclined guide pillars (310) are provided and are respectively located on the outer wall of the slider (309), and two groups of buffer springs (311) are provided and are respectively located on the side walls of the slider (309).

6. The externally-mounted oblique core-pulling mechanism of the secondary demoulding injection mold for the automobile seat headrest cover according to claim 2, characterized in that: Two groups of core pulling rods (312) are provided and are respectively located on the outer wall of the slider (309). The material of the mounting base (401) is a strong magnetic material. The mounting base (401) and the injection mold (1) are connected by magnetic connection.

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