An intermittent demolding mechanism and mold for an automotive headlight housing

Abstract

This utility model discloses an intermittent demolding mechanism and mold for an automotive headlight housing. The intermittent demolding mechanism includes: a male mold; a driving device fixedly installed on one side of the male mold; a slider seat installed at the bottom of the male mold and fixedly connected to the moving end of the driving device; and an inclined pull block, one end of which is obliquely slidably connected to the slider seat, and the other end of which is disposed within the parting surface of the male mold. The driving device drives the inclined pull block to move towards or away from the parting surface of the male mold via the slider seat. When the mold opens, the inclined pull block is pre-pulled out to allow deformation space for the strong release of the first and / or second snap fasteners. This utility model provides an intermittent demolding mechanism for an automotive headlight housing. By setting an obliquely slidable core-pulling component within the mold, core pulling is performed in advance to avoid interference from the undercut, thus decoupling the core pulling and mold opening sequence, improving demolding reliability, and facilitating the integral molding of complex structures.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically, to an intermittent demolding mechanism and mold for an automotive headlight housing. Background Technology

[0002] In the structural design of automotive headlights, the lamp housing, as a key aesthetic and functional component, is typically integrally molded using injection molding. In existing technologies, to ensure a reliable connection between the headlight housing and internal components or other housing parts, multiple clips are often incorporated into its structural surface for positioning and locking functions.

[0003] like Figure 1-2 As shown, the inner wall of the headlight housing is provided with a first clip and a second clip. The first clip and the second clip are set perpendicular to each other to adapt to complex assembly spaces and enhance connection stability. However, this perpendicular arrangement of clips can easily cause structural interference problems during mold demolding, especially when both clips are provided with undercut structures. The undercut parts will form a mechanical obstruction in the demolding direction, causing the mold to be unable to open smoothly, thus affecting production efficiency and product integrity.

[0004] Therefore, how to optimize the snap-fit ​​structure or the core-pulling method of the mold to solve the demolding interference problem between snap-fits and undercuts has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, the embodiments of this utility model propose an intermittent demolding mechanism for automotive headlight housings. By setting a core-pulling component that can slide obliquely within the mold, core pulling is performed in advance to avoid interference from undercuts, thereby decoupling the core-pulling and mold-opening sequences, improving demolding reliability, and facilitating the integral molding of complex structures.

[0006] This utility model embodiment also proposes a mold having the intermittent demolding mechanism of the above-mentioned automotive headlight housing.

[0007] The technical solution adopted by this utility model is as follows: providing an intermittent demolding mechanism for automotive headlight housings, comprising: a male mold; a driving device fixedly installed on one side of the male mold; a slider seat installed at the bottom of the male mold and fixedly connected to the moving end of the driving device; and an inclined pull block, one end of which is obliquely slidably connected to the slider seat, and the other end of which is disposed within the parting surface of the male mold; the driving device drives the inclined pull block to move toward or away from the parting surface of the male mold through the slider seat, and the inclined pull block is pre-extracted during mold opening to allow deformation space for the strong release of the first and / or second latches.

[0008] This invention features a sliding core-pulling assembly inside the mold, controlled by a drive device to complete core pulling before mold opening. This avoids interference between the perpendicularly arranged undercut structures during mold opening. This intermittent core-pulling structure not only decouples the core-pulling and mold-opening actions, improving mold demolding reliability and yield, but also facilitates integrated injection molding of complex undercut structures, simplifying the mold structure and reducing manufacturing and maintenance costs.

[0009] According to one embodiment of this utility model, the inner end of the slider seat is provided with an inclined surface, and an inclined T-shaped block is provided on the inclined surface. This structure can realize the precise guiding movement of the inclined pulling block in the inclined direction, ensuring stability and guiding accuracy during the core pulling process.

[0010] According to one embodiment of this utility model, one end of the inclined pulling block is provided with a T-shaped groove, and the T-shaped block and the T-shaped groove are connected in an oblique sliding manner. By introducing the T-shaped sliding structure, the core pulling structure's resistance to displacement and connection strength under stress are improved.

[0011] According to one embodiment of this utility model, the inclined surface is provided with a positioning block, and the inclined pull block is provided with a positioning structure corresponding to the position of the positioning block. This prevents positional errors or loosening during operation.

[0012] According to one embodiment of the present invention, the positioning blocks are symmetrically arranged on both sides of the T-shaped block.

[0013] According to one embodiment of the present invention, the positioning structure is a single-line positioning groove.

[0014] According to one embodiment of the present invention, the positioning block has a protruding positioning portion that matches the one-line positioning groove.

[0015] A mold comprising an intermittent demolding mechanism for an automotive headlight housing as described in any of the preceding claims. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the car headlight housing in an embodiment of this utility model.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the mold structure in an embodiment of this utility model.

[0020] Figure 4 This is a perspective view of the intermittent demolding mechanism in an embodiment of this utility model.

[0021] Figure 5 This is a top view of the intermittent demolding mechanism in an embodiment of this utility model.

[0022] Figure 6 for Figure 5 Cross-sectional view at point BB.

[0023] Figure 7 This is an exploded view of the intermittent demolding mechanism in an embodiment of this utility model.

[0024] Figure 8 This is a schematic diagram of the slider seat in an embodiment of the present utility model.

[0025] Figure 9 This is a schematic diagram of the inclined pulling block in an embodiment of the present invention.

[0026] Explanation of the labels in the diagram: 1. Headlight housing; 2. Male mold; 3. Mold base; 4. Drive unit; 5. Slider base; 6. Angled pull block; 7. Positioning block; 1a. First buckle; 1b. Second buckle; 5a. Inclined surface; 5b. T-block; 6a. T-slot; 6b. Straight positioning slot; 7a. Positioning section. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0028] like Figure 3-9 As shown, this embodiment discloses an intermittent demolding mechanism for an automotive headlight housing, including a male mold 2; a driving device 4; a slider seat 5; and a slanted pull block 6. The male mold 2 is used to form the outer contour structure of the automotive headlight housing 1, and its surface is provided with a parting surface. This parting surface cooperates with the female mold in the mold-closed state to form the product shape and the undercut structure, such as the first snap 1a and the second snap 1b on the headlight housing 1.

[0029] Furthermore, combined Figure 3 As shown, the male mold 2 is a rectangular block and is fixedly mounted on the mold base 3. Its parting surface is located at the upper end of the male mold 2, forming the boundary of the molding cavity. The drive device 4 is fixedly mounted on one side of the male mold 2. Specifically, the drive device 4, such as a hydraulic cylinder or pneumatic cylinder, is fastened to the bracket on the side wall of the male mold 2 by bolts. The moving end of the drive device 4, i.e., the piston rod on the hydraulic cylinder, extends from the body of the drive device 4 to provide linear reciprocating motion. The function of the drive device 4 is to ensure that the core-pulling action is completed before mold opening by controlling its stroke and speed. The slider seat 5 is a rectangular structure and is mounted on the bottom of the male mold 2. Its surface is provided with wear-resistant blocks. The outer end of the slider seat 5 is fixedly connected to the moving end of the drive device 4 by threads or key pins to achieve a rigid connection, thereby directly transmitting the motion of the drive device 4 to the slider seat 5. The inclined pull block 6 is a wedge-shaped block component. Its lower end is dynamically connected to the slider seat 5 through an inclined sliding connection mechanism. Its upper end is placed in the parting surface of the male mold 2. In the mold closing state, the upper end is embedded in the parting surface and directly participates in forming the undercut structure.

[0030] Furthermore, combining Figure 6-8 As shown, the oblique sliding connection of the inclined pull block 6 allows it to move along an oblique path, rather than in a vertical or horizontal direction. The drive device 4 drives the inclined pull block 6 to move towards or away from the parting surface of the male mold 2 via the slider seat 5; in the mold opening sequence, the drive device 4 acts first, causing the inclined pull block 6 to be pre-pulled away from the parting surface, making room for the forced demolding of the first snap 1a and / or the second snap 1b, and avoiding interference caused by the undercut structure at the moment of mold opening. This mechanism achieves sequential decoupling of the core pulling action and the mold opening action by setting an oblique sliding core pulling component inside the mold: the inclined pull block 6 first pulls away from the parting surface along the oblique path, and then the mold opening action is performed, thereby improving the reliability of mold demolding and the yield rate, while supporting the integrated injection molding of complex undercut structures, simplifying the overall structure of the mold, and reducing manufacturing and maintenance costs.

[0031] Furthermore, combined Figure 8 As shown, the end of the slider seat 5 away from the driving device 4 is provided with an inclined surface 5a, which forms a preset angle of 30 to 60 degrees with the horizontal plane; an inclined T-shaped block 5b is provided on the inclined surface 5a, which is an integral protruding structure and is connected to the central area of ​​the inclined surface 5a by bolts.

[0032] Furthermore, combined Figure 9 As shown, the lower end of the inclined pull block 6 is provided with a T-shaped groove 6a, which is a groove-shaped structure that extends along the length direction of the inclined pull block 6; the T-shaped block 5b and the T-shaped groove 6a are connected in an oblique sliding manner, specifically, the T-shaped block 5b is embedded in the T-shaped groove 6a to form a nested sliding fit, allowing the two to slide relative to each other on the inclined surface 5a along the same oblique path.

[0033] Furthermore, combined Figure 7-8 As shown, the inclined surface 5a is provided with a positioning block 7, which is a rectangular or cylindrical element and is fixedly installed on the inclined surface 5a. The inclined pull block 6 is provided with a positioning structure corresponding to the positioning block 7, which is located on the lower end surface of the inclined pull block 6. The function of the positioning block 7 is to limit the lateral displacement of the inclined pull block 6 during the sliding process, ensuring that it will not produce positional errors or loosening during operation. The function of the positioning structure is to cooperate with it to form a constraint mechanism to maintain the accurate positioning of the inclined pull block 6.

[0034] Furthermore, the positioning blocks 7 are symmetrically arranged on both sides of the T-shaped block 5b; specifically, the two positioning blocks 7 are located on the left and right sides of the T-shaped block 5b, respectively, and are installed at equal intervals along the length of the inclined surface 5a. This symmetrical arrangement ensures balanced force, enhances the stability of the guiding system, and prevents deviation caused by uneven force on one side.

[0035] Furthermore, combining Figure 9 As shown, the positioning structure is a straight positioning groove 6b; the straight positioning groove 6b is a straight groove machined on the lower surface of the inclined pull block 6, and its length direction is parallel to the movement path of the inclined pull block 6. The positioning block 7 has a protruding positioning part 7a, which matches the straight positioning groove 6b. The fitting method is that the positioning part 7a is inserted into the straight positioning groove 6b to form a mating positioning. When the inclined pull block 6 slides, the positioning part 7a slides in the groove, restricting the oblique degree of freedom.

[0036] In another embodiment, a mold is disclosed, which includes the intermittent demolding mechanism for the automotive headlight housing 1 described in this embodiment.

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An intermittent demolding mechanism for an automotive headlight housing, characterized in that, include: male model; A drive device, which is fixedly installed on one side of the male mold; A slider seat is installed at the bottom of the male mold and is fixedly connected to the moving end of the drive device; An inclined pull block has one end slidably connected to the slider seat, and the other end is set in the parting surface of the male mold. The driving device drives the inclined pull block to move towards or away from the parting surface of the male mold through the slider seat. When the mold is opened, the inclined pull block is pre-pulled out to make room for deformation of the first buckle and / or the second buckle.

2. The intermittent demolding mechanism for an automotive headlight housing according to claim 1, characterized in that: The inner end of the slider seat is provided with an inclined surface, and an inclined T-shaped block is provided on the inclined surface.

3. The intermittent demolding mechanism for an automotive headlight housing according to claim 2, characterized in that: One end of the inclined pull block is provided with a T-shaped groove, and the T-shaped block and the T-shaped groove are connected in an oblique sliding manner.

4. The intermittent demolding mechanism for an automotive headlight housing according to claim 2, characterized in that: The inclined surface is provided with a positioning block, and the inclined pull block is provided with a positioning structure corresponding to the position of the positioning block.

5. The intermittent demolding mechanism for an automotive headlight housing according to claim 4, characterized in that: The positioning blocks are symmetrically arranged on both sides of the T-shaped block.

6. The intermittent demolding mechanism for an automotive headlight housing according to claim 4, characterized in that: The positioning structure is a single-line positioning groove.

7. The intermittent demolding mechanism for an automotive headlight housing according to claim 6, characterized in that: The positioning block has a protruding positioning part that matches the slotted positioning groove.

8. A mold, characterized in that: Including the intermittent demolding mechanism for automotive headlight housings as described in any one of claims 1 to 7.

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