A mold structure for an automotive co-driver instrument panel plastic product

Abstract

The present application relates to a mold structure for an automotive passenger-side instrument panel plastic product, belonging to the technical field of molds. The mold structure for the automotive passenger-side instrument panel plastic product includes a first demolding structure for demolding the undercut of the structural adhesive position on the inner side of the end face. The first demolding structure includes a main slider mechanism, an inclined elastic slider mechanism slidably mounted on the main slider and used for forming the undercut of the structural adhesive position on the inner side of the end face, and a guiding mechanism for guiding the sliding of the inclined elastic slider mechanism. The main slider mechanism includes main sliders symmetrically arranged on the fixed mold and used for forming the side wall of the instrument panel main body, and an inclined guide post arranged on the moving mold and used for driving the main slider to move. The guiding mechanism is fixed on the fixed mold. When the main slider slides, the inclined elastic slider moves downward away from the end undercut under the guiding action of the guiding mechanism. The present application has the effect of improving the demolding efficiency of the instrument panel main body.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a mold structure for plastic products of an automotive passenger instrument panel. Background Art

[0002] The automotive passenger instrument panel is an important part of the automotive interior. It not only undertakes the function of vehicle information display, but also affects the operation convenience and driving experience of the driver. With the rapid development of the automotive industry, consumers have higher and higher requirements for the aesthetics, functionality and safety of automotive interiors, resulting in more complex designs of the passenger instrument panel, and the corresponding injection mold structure has also become more complex.

[0003] Refer to Figure 1 and Figure 2 , an automotive passenger instrument panel, including an instrument panel main body, and reverse buckle glue position features are symmetrically designed on the inner side of the top end and the inner side of the end of the instrument panel main body. The reverse buckle on the top side is an inner hole and a side groove, and the reverse buckle on the inner side of the end is a horn-shaped opening glue position structure forming an angle with the main demolding direction.

[0004] The current injection mold designs the instrument panel to be ejected by a conventional inclined ejector pin. Not only is the mold structure very complex, but it is also easy to damage the reverse buckle glue position, affecting the qualification of the product. Summary of the Invention

[0005] In order to improve the demolding efficiency of the instrument panel main body and reduce the probability of damage to the reverse buckle of the glue position on the inner side of the end face during product demolding, this application provides a mold structure for plastic products of an automotive passenger instrument panel.

[0006] A mold structure for plastic products of an automotive passenger instrument panel provided by this application adopts the following technical solutions:

[0007] A mold structure for plastic products of an automotive passenger instrument panel includes a first demolding structure for demolding the reverse buckle of the glue position on the inner side of the end face. The first demolding structure includes a main slider mechanism, an inclined elastic slider mechanism slidably disposed on the main slider mechanism, and a guiding mechanism for controlling the movement direction of the inclined elastic slider mechanism. The main slider mechanism includes main sliders symmetrically disposed on the moving template and used for forming the side wall of the passenger instrument panel main body, and inclined guide posts disposed on the fixed template and used for driving the main sliders to move. The guiding mechanism is disposed on the moving template. When the main slider slides away from the cavity, the inclined elastic slider mechanism makes a movement of obliquely downward disengaging from the reverse buckle of the glue position on the inner side of the end face under the guiding action of the guiding mechanism.

[0008] By adopting the above technical solution, after the instrument panel body in the injection mold cools and solidifies, the moving mold moves away from the fixed mold, and the fixed mold and the inclined guide pillar move synchronously. The main slider moves away from the product under the action of the inclined guide pillar. The main slider and the inclined elastic slider mechanism are also relatively moved, but under the action of the guiding mechanism, the inclined elastic slider mechanism moves obliquely downward relative to the inner side of the end face where the structural adhesive position is undercut. The inclined elastic slider can be staggered and separated from the inner side of the end face where the structural adhesive position is undercut, and then the product is completely ejected by the ejection mechanism. The above structure improves the demoulding efficiency of the mold by adopting a mechanical structure. Compared with using cylinders and air cylinders, etc., the mold structure is simplified and the mold manufacturing cost is reduced.

[0009] Optionally, the inclined elastic slider mechanism includes a first inclined elastic block slidably installed on the main slider, a first spring member with two ends respectively abutting against the first inclined elastic block and the main slider, and a fixed-distance pull rod connecting the first inclined elastic block and the main slider.

[0010] By adopting the above technical solution, the structural composition of the inclined elastic slider mechanism is disclosed. The connection between the first inclined elastic block and the main slider is realized through the fixed-distance pull rod. When the main slider opens outward, the first inclined elastic block can slide relative to the main slider through the first spring member. The structure of the inclined elastic slider mechanism is simple, and the assembly and processing are relatively convenient.

[0011] Optionally, the first inclined elastic block includes a sliding body and a first forming part. The main slider is provided with a sliding inclined hole on the side facing the sub-instrument panel body, which is matched with the sliding body. The main slider is provided with an abutting groove at the bottom wall of the sliding inclined hole for the end of the first spring member to abut against.

[0012] When the mold is closed, a part of the first forming part abuts against the core, and the tail of the sliding body is in the sliding inclined hole.

[0013] By adopting the above technical solution, the sliding body and the sliding inclined hole of the main slider are in sliding fit, which plays a role in support, positioning and guiding, ensuring the accurate position and stable movement of the first inclined elastic block in the mold. The first forming part is used to form the undercut on the inner side of the end face of the instrument panel body. The two ends of the first elastic member respectively abut against the abutting groove of the main slider and the first inclined elastic block.

[0014] Optionally, a stepped hole communicating with the sliding inclined hole and for arranging the fixed-distance pull rod is opened on the outer side of the main slider, and the fixed-distance pull rod is limited to slide in the stepped hole.

[0015] By adopting the above technical solution, the fixed-distance pull rod penetrates from the outside of the main slider to the sliding inclined hole. The end of the fixed-distance pull rod is fixed to the end of the first inclined elastic block. The fixed-distance pull rod is limited to slide in the stepped hole. When the main slider opens outward, the first inclined elastic block is synchronously demolded downward under the combined action of the spring force and the resistance of the side wall glue position of the product.

[0016] Optionally, the guiding mechanism includes an end slider fixed to the end of the moving template and a guiding rod disposed on the end slider. The first forming portion is provided with a limiting groove in the vertical direction for mating with the end of the guiding rod.

[0017] By adopting the above technical solution, the setting of the guiding mechanism can guide and limit the demolding movement direction of the first inclined elastic block, so that the first inclined elastic block is horizontally opened along with the main slider. At the same time, under the control of the guiding rod, the limiting groove enables the first inclined elastic block to move downward, so as to disengage from the inner side glue position undercut of the end face.

[0018] Optionally, the guiding rod is slidably disposed on the end slider. A stepped through hole for installing the guiding rod is formed in the end slider. A guiding spring connecting the guiding rod and a tightening screw for fixing the guiding spring are installed in the stepped through hole.

[0019] By adopting the above technical solution, the cooperation mode of the guiding rod and the end slider is disclosed. The spring tightening screw presses the guiding rod through the spring. The guiding rod, the spring and the tightening screw are installed in the end slider, so that when the main slider is opened and the end slider moves outward, the guiding rod can always contact the limiting groove.

[0020] Optionally, a sliding connection block cooperating with the inclined guide post is arranged on the moving template. The sliding connection block has a delayed core-pulling guide post hole for the inclined guide post to pass through, and the inner diameter of the delayed core-pulling guide post hole is larger than that of the inclined guide post.

[0021] By adopting the above technical solution, the sliding connection block plays a role of driving force for the drawing of the inclined guide post. The sliding connection block and the main slider are fixedly connected, which plays a role of saving materials. When the mold is opened and the inclined guide post moves upward, it can drive the main slider to move horizontally outward. The inner diameter of the inclined through hole is larger than that of the inclined guide post, which plays a role of delaying core-pulling, so that the two main sliders can fix the product first when the mold is opened, ensuring that the cavity core first disengages from the product.

[0022] Optionally, it further includes a second demolding structure for demolding the undercut on the inner side of the top end. The second demolding structure includes an inclined elastic pressing block fixed to the fixed template, a second inclined elastic block slidably installed in the cavity, a second pull rod pressing the inclined elastic pressing block and the second inclined elastic block, and a second spring member sleeved on the second pull rod. The second inclined elastic block is provided with a forming side convex column for forming a side hole and a convex platform for forming a side groove. The second inclined elastic block is inclined in the fixed template. When the fixed template and the moving template are demolded and opened, the second spring member restores deformation and makes the second inclined elastic block slide obliquely downward to demold the forming side convex column and the convex platform.

[0023] By adopting the above technical solution, the setting of the second demolding structure can simplify the mold structure, facilitate processing, increase the service life of the mold. When the mold is opened, the moving and fixed templates are separated from each other, the second spring member restores its deformation, and the second inclined spring block moves horizontally in the fixed template away from the undercut of the product, so that the forming convex columns and bosses on the forming spring block are disengaged from the inner undercut of the product.

[0024] Optionally, the fixed template has a positioning groove for arranging the inclined spring pressing block, the inclined spring pressing block is provided with a plurality of fixing through holes, and the fixed template is provided with fixing screw holes corresponding to the fixing through holes one by one in the positioning groove.

[0025] By adopting the above technical solution, the inclined spring pressing block is positioned and arranged on the moving template through the positioning groove, and then the inclined spring pressing block and the moving template are fixedly connected by bolts. The above inclined spring pressing block has a simple structure, is durable and convenient to process.

[0026] Optionally, the second inclined spring block has an inclined spring placement hole for the second pull rod to be inserted obliquely, and a locking screw hole for fixedly cooperating with the second pull rod is provided on the bottom wall of the inclined spring placement hole, and the second pull rod is fixedly fitted with the locking screw hole by thread.

[0027] By adopting the above technical solution, the second inclined spring block mechanism is designed in the fixed template. When the moving and fixed templates are opened, the second inclined spring block in the fixed template moves downward and inward relative to each other under the combined action of the spring force and the plastic undercut resistance, so as to disengage from the undercut. The second spring sleeve is sleeved on the second pull rod, and the two ends respectively abut against the inclined spring pressing block and the second inclined spring block. The second pull rod plays a dual role of a spring support rod and controlling the ejection distance of the second inclined spring block. The overall structure is simple, convenient for processing and assembly, and has high stability.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] Through the setting of the main slider mechanism, the inclined spring slider mechanism and the guiding mechanism in the present application, when the moving and fixed molds are opened, the first inclined spring block moves obliquely downward and inward relative to the product, so that the first inclined spring block is disengaged from the inner undercut of the end face of the product, and the first forming part is smoothly disengaged from the undercut, improving the demolding and ejection efficiency of the sub-instrument panel and greatly reducing the probability of damage to the inner undercut rubber position structure on the end face.

[0030] Through the setting of the guiding spring in the present application, when the first inclined spring block moves inward, the guiding rod is always in the limiting groove of the first inclined spring block under the action of the guiding spring, playing a role in controlling the obliquely downward movement direction of the first inclined spring block during demolding.

[0031] With the setting of the second demolding structure in this application, when the moving mold and the fixed mold are opened, the second inclined elastic block and the undercut on the inner side of the top of the product are disengaged simultaneously, simplifying the mold structure, ensuring the quality of the product, and improving the demolding efficiency of the product. Brief Description of the Drawings

[0032] Figure 1 is the automotive passenger-side instrument panel that needs to be injection-molded in the background art.

[0033] Figure 2 is Figure 1 the partial enlarged schematic view at position A in

[0034] Figure 3 is the overall structural schematic view of the embodiment of this application.

[0035] Figure 4 is the exploded schematic view of the guiding mechanism and the moving mold of the embodiment of this application.

[0036] Figure 5 is the cross-sectional schematic view of the main slider mechanism and the inclined elastic slider mechanism of the embodiment of this application.

[0037] Figure 6 is the top view of the inclined elastic slider mechanism and the main slider mechanism of the embodiment of this application.

[0038] Figure 7 is Figure 6 the cross-sectional schematic view along A-A in

[0039] Figure 8 is the cross-sectional schematic view of the spring groove in the sliding body of the embodiment of this application.

[0040] Figure 9 is the schematic view of the sliding inclined hole, the abutting groove and the stepped hole of the main slider of the embodiment of this application.

[0041] Figure 10 is the exploded schematic view of the guiding mechanism and the inclined elastic slider mechanism of the embodiment of this application.

[0042] Figure 11 is the structural schematic view of the passenger-side instrument panel main body, the inclined elastic slider mechanism and the guiding rod of the embodiment of this application.

[0043] Figure 12 is the structural schematic view of the second inclined elastic block, the second pull rod and the fixed mold of the embodiment of this application.

[0044] Figure 13 is the exploded schematic view of the second demolding structure of the embodiment of this application.

[0045] Figure 14 is the cross-sectional schematic view of the second demolding structure of the embodiment of this application.

[0046] Description of the reference numerals: 1. Main slider mechanism; 11. Main slider; 111. Sliding inclined hole; 112. Abutting groove; 113. Step hole; 12. Inclined guide pillar; 13. Sliding connection block; 131. Delayed core-pulling guide pillar hole; 2. Inclined elastic slider mechanism; 21. First inclined elastic block; 211. Sliding body; 2111. Spring groove; 212. First forming part; 2121. First forming feature; 2122. Limit groove; 22. First spring member; 23. Fixed-distance pull rod; 231. Limit end; 3. Guiding mechanism; 31. End slider; 311. Step through hole; 32. Guiding rod; 33. Guiding spring, 34. Tightening screw; 4. Moving template; 5. Fixed template; 51. Positioning groove; 511. Fixed screw hole; 6. Inclined elastic pressing block; 61. Fixed through hole; 62. Inclined through hole; 7. Second inclined elastic block; 71. Second sliding part; 711. Inclined spring insertion hole; 712. Locking screw hole; 713. Positioning platform; 72. Second forming part; 721. Forming side convex column; 8. Second pull rod; 81. Locking part; 82. Limiting part; 9. Second spring member; 10. Sub-instrument panel main body; 101. Inner side reverse buckle at the top; 102. Inner side structural adhesive position reverse buckle at the end face. Detailed implementation manners

[0047] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0048] The following will further Figures 1-14 describe the present application in detail with reference to the accompanying

[0049] The embodiment of the present application discloses a mold structure for an automotive sub-instrument panel plastic product. The mold structure in this embodiment is mainly used for the demolding of the sub-instrument panel main body 10 as shown in Figure 1 and Figure 2 . Therefore, the relevant features of the sub-instrument panel main body 10 that appear subsequently can be directly referred to Figure 1 and Figure 2 , and the accompanying drawings will not be separately cited.

[0050] Reference Figure 3 and Figure 4 , a mold structure for a plastic product of an automotive passenger-side instrument panel, comprising a first demolding structure for demolding the structural adhesive position undercut 102 on the inner side of the end face and a second demolding structure for demolding the undercut 101 on the inner side of the top end. In this embodiment, the X direction is the height direction, the fixed mold plate 5 is located at the top in the X direction, and the movable mold plate 4 is located at the bottom.

[0051] The first demolding structure includes a main slider mechanism 1, an inclined elastic slider mechanism 2 slidably mounted on the main slider mechanism 1, and a guiding mechanism 3 for controlling the moving direction of the inclined elastic slider mechanism 2.

[0052] The main slider mechanism 1 includes main sliders 11 symmetrically arranged on the top of the movable mold plate 4 and used for molding the side walls of the passenger-side instrument panel main body 10, and inclined guide posts 12 slidably engaged with the main sliders 11. The main sliders 11 are slidably engaged with the top surface of the movable mold plate 4, and multiple groups of slide rails engaged with the main sliders 11 are arranged at intervals along the length direction on the movable mold plate 4.

[0053] Reference Figure 5 , the inclined guide post 12 is inclined upward from bottom to top towards the passenger-side instrument panel main body 10, and a sliding connection block 13 slidably engaged with the inclined guide post 12 is arranged on the movable mold plate 4. The sliding connection block 13 and the main slider 11 are fixedly connected by T-shaped structure embedding and bolts, and the sliding connection block 13 is provided with a delayed core-pulling guide post hole 131 penetrating through both end faces and engaged with the inclined guide post 12. The inner diameter of the delayed core-pulling guide post hole 131 in the horizontal direction is larger than the outer diameter of the inclined guide post 12, which plays a role of delaying core-pulling, enabling the fixed and movable mold plates to first separate from the product and ensuring that the product is not easily deformed during the molding process.

[0054] The top of the inclined guide post 12 is fixedly connected to the fixed mold plate 5. When the mold is opened, the sliding connection block 13 and the main slider 11 move horizontally away from the passenger-side instrument panel main body 10 under the action of the inclined guide post 12.

[0055] Combined Figures 6 to 9 , the inclined elastic slider mechanism 2 includes a first inclined elastic block 21, a first spring member 22, and a fixed-distance pull rod 23. The first inclined elastic block 21 is slidably mounted on the main slider 11 and includes a sliding body 211 and a first molding portion 212. The sliding body 211 is an overall strip-shaped rectangular block, and a sliding inclined hole 111 engaged with the sliding body 211 is opened on the inner side of the main slider 11. In the height direction, the sliding body 211 is inclined downward towards the passenger-side instrument panel main body 10. In the horizontal direction, the sliding body 211 is inclined towards the center of the passenger-side instrument panel main body 10.

[0056] The first spring member 22 is a die spring, specifically a blue slingshot. The end of the sliding body 211 has a spring groove 2111 for one end of the first spring member 22 to abut against, and the bottom wall of the sliding inclined hole 111 has an abutting groove 112 for the other end of the first spring member 22 to abut against. In this embodiment, two first spring members 22 are installed on the first inclined elastic block 21, and the two first spring members 22 are respectively arranged on both sides of the end face of the sliding body 211.

[0057] The fixed-distance pull rod 23 is a metal rod, which is located between the two first spring members 22. A stepped hole 113 communicating with the sliding inclined hole 111 and for arranging the metal rod is formed in the main slider 11. The end of the fixed-distance pull rod 23 has a limiting end 231 which is limitedly arranged in the stepped hole 113.

[0058] The end of the fixed-distance pull rod 23 far from the limiting end 231 is fixedly connected to the sliding body 211. In this embodiment, the fixed-distance pull rod 23 and the sliding body 211 are threadedly connected.

[0059] Refer to Figure 10 and Figure 11 , the first forming part 212 is integrally arranged with the sliding body 211. The size of the first forming part 212 is larger than that of the sliding inclined hole 111, and the depth of the sliding inclined hole 111 is adapted to the length of the sliding body 211. Therefore, when the mold is closed for injection molding, the first forming part 212 is hermetically fitted to the inner side wall of the main slider 11. The end of the first forming part 212 has a first forming feature 2121 for forming an inner-side structural adhesive position undercut 102 on the end face.

[0060] The guiding mechanism 3 is integrally fixed to one side of the moving template 4 in the width direction and is located at the end position of the product. The guiding mechanism 3 includes an end slider 31 and a guiding rod 32. The end slider 31 is fixed to the moving template 4 by bolts, and its side facing the sub-instrument panel main body 10 is hermetically fitted to the first forming part 212.

[0061] The end slider 31 is provided with a stepped through hole 311 penetrating through both end faces and for the guiding rod 32 to slide and be arranged. A tightening screw 34 is fixed at one end of the stepped through hole 311 of the end slider 31. A guiding spring 33 is arranged between the tightening screw 34 and the end of the guiding rod 32. The guiding spring 33 is a blue slingshot. The side wall of the first forming part 212 has a limiting groove 2122 for the guiding rod 32 to slide and cooperate with. The top of the limiting groove 2122 is open and is arranged vertically along the height direction as a whole.

[0062] Refer to Figure 12 , Figure 13 and Figure 14 , the second demolding structure includes an inclined elastic pressing block 6, a second inclined elastic block 7, a second pull rod 8 and a second spring member 9.

[0063] The oblique elastic compression block 6 is in the shape of a rectangular block as a whole. The top of the fixed template 5 has a positioning groove 51 for the oblique elastic compression block 6 to be arranged. The size of the positioning groove 51 is adapted to the oblique elastic compression block 6. The ends of the oblique elastic compression block 6 near the four corners have fixed through holes 61 that penetrate the upper and lower end surfaces. The fixed through holes 61 are countersunk holes. The bottom wall of the positioning groove 51 has fixed screw holes 511 that correspond one to one with the fixed through holes 61. The oblique elastic compression block 6 and the fixed template 5 are fixedly connected by bolts.

[0064] The central area of ​​the oblique elastic pressing block 6 has an inclined through hole 62 that penetrates the upper and lower end surfaces and is used for the sliding movement of the second pull rod 8. The second oblique elastic block 7 includes a second sliding portion 71 corresponding to the inclined through hole 62 and a second forming portion 72 arranged at the end of the second sliding portion 71. The second sliding portion 71 and the second forming portion 72 are integrally arranged, and the side wall of the second forming portion 72 has a forming side convex column 721 for forming a side hole and a boss 722 for forming a side groove.

[0065] The second sliding portion 71 is in the shape of an inclined rectangular rod, and has an inclined spring insertion hole 711 on its end surface facing the inclined spring pressing block 6. The inclined spring insertion hole 711 and the inclined through hole 62 have the same inclination angle, and both are inclined from top to bottom toward the central axis of the cavity.

[0066] The bottom wall of the tilt spring insertion hole 711 has a locking screw hole 712, and the inner diameter of the locking screw hole 712 is smaller than the inner diameter of the tilt spring insertion hole 711. The end of the second pull rod 8 inserted into the tilt spring insertion hole 711 has a locking portion 81 that cooperates with the locking screw hole 712, and the locking portion 81 and the locking screw hole 712 are threadedly fixed.

[0067] The inclined through hole 62 is a countersunk hole structure, and the end of the second pull rod 8 has a limiting portion 82 that abuts against the inclined through hole 62 to prevent the second pull rod 8 from escaping from the bottom of the inclined through hole 62 .

[0068] The second spring member 9 is a blue spring, and its two ends respectively abut against the bottom wall of the inclined spring pressing block 6 and the inclined spring insertion hole 711. Before mold closing, the second inclined spring block 7 is located at the top of the cavity as a whole, and the second pull rod 8 is located at the bottom of the inclined spring insertion hole 711 under the action of gravity, and the second spring member 9 is in a stretched state; when the mold is closed, the second inclined spring block 7 first abuts against the bottom of the cavity, and then the second spring member 9 gradually resets, and the second molding portion 72 moves horizontally toward the side hole.

[0069] In order to improve the sealing stability of the second oblique elastic block 7 during molding, the bottom of the second oblique elastic block 7 is also provided with a positioning platform 713, and the positioning platform 713 is fitted with the fixed mold plate. In this embodiment, the mold is equipped with two sets of oblique elastic demoulding mechanisms, and the two sets of mechanisms are symmetrically arranged along the central axis of the product, so that the oblique elastic sliding blocks of the two sets of mechanisms move towards or away from each other during sliding. There is a spacing distance between the second molding parts 72 of the two sets of mechanisms. When the mold is opened, under the action of the spring elastic force, the molding side convex column 721 and the boss 722 of the side groove can be disengaged from the inner hole and the side groove without causing interference damage, ensuring that after the elastic member is reset, the molding side convex column 721 can be disengaged from the inner hole.

[0070] The implementation principle of the mold structure of a plastic product of a sub-instrument panel of an automobile in the embodiment of the present application is as follows: when the sub-instrument panel body 10 in the injection mold is cooled and solidified, the fixed mold plate 5 moves away from the movable mold plate 4, the fixed mold plate 5 and the inclined guide pillar 12 move synchronously, the inclined guide pillar 12 and the movable mold plate 4 move relatively, the main slider 11 moves away from the product under the action of the inclined guide pillar 12, the main slider 11 and the inclined elastic slider mechanism 2 also move synchronously with the main slider 11, and under the action of the guide mechanism 3, the inclined elastic slider mechanism 2 moves downward and inward toward the center of the sub-instrument panel body 10, so that the first inclined elastic block 21 is separated from the structural glue position undercut 102 on the inner side of the end surface;

[0071] When the fixed mold plate 5 is separated from the core in the movable mold plate 4, the second inclined spring block 7 moves obliquely downward along with the product to separate from the top inner side undercut 101 until the second pull rod 8 abuts against the bottom of the inclined through hole 62 of the inclined spring clamping block 6 and stops moving; when the mold is closed, the second inclined spring block 7 is reset under the pressure of the core in the movable mold plate 4.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mold structure for a plastic product of a car auxiliary instrument panel, characterized in that: The invention comprises a first demoulding structure for demoulding the undercut (102) of the structural adhesive position on the inner side of the end face, the first demoulding structure comprises a main slider mechanism (1), an oblique elastic slider mechanism (2) slidably arranged on the main slider mechanism (1), and a guide mechanism (3) for controlling the movement direction of the oblique elastic slider mechanism (2), the main slider mechanism (1) comprises a main slider (11) symmetrically arranged on the movable template (4) and used for molding the side wall of the auxiliary instrument panel body (10), and an oblique guide column (12) arranged on the fixed template (5) and used for driving the main slider (11) to move, the guide mechanism (3) is arranged on the movable template (4), when the main slider (11) slides away from the cavity, the oblique elastic slider mechanism (2) moves obliquely downward to disengage from the undercut (102) of the structural adhesive position on the inner side of the end face under the guidance of the guide mechanism (3); The oblique elastic slider mechanism (2) comprises a first oblique elastic block (21) slidably mounted on the main slider (11), a first spring member (22) with two ends respectively abutting against the first oblique elastic block (21) and the main slider (11), and a distance pull rod (23) connecting the first oblique elastic block (21) and the main slider (11); The first inclined spring block (21) comprises a sliding body (211) and a first molded portion (212); the main sliding block (11) is provided with an inclined sliding hole (111) cooperating with the sliding body (211) on a side facing the auxiliary instrument panel body (10); the main sliding block (11) is provided with an abutment groove (112) on a bottom wall of the inclined sliding hole (111) for the end of the first spring member (22) to abut against; in the height direction, the sliding body (211) is arranged to be inclined downward toward the auxiliary instrument panel body (10); in the horizontal direction, the sliding body (211) is arranged to be inclined toward the center direction of the auxiliary instrument panel body (10); When the mold is closed, the first molding portion (212) partially abuts against the core, and the tail of the sliding body (211) is in the sliding inclined hole (111); A stepped hole (113) communicating with the inclined sliding hole (111) and arranged for the distance rod (23) is provided on the outer side of the main sliding block (11), and the distance rod (23) is limitedly slidable in the stepped hole (113); The guide mechanism (3) comprises an end slider (31) fixed to the end of the movable template (4) and a guide rod (32) arranged on the end slider (31); the first forming portion (212) is provided with a limiting groove (2122) in a vertical direction and matched with the end of the guide rod (32); The guide rod (32) is slidably disposed on the end slider (31), and a stepped through hole (311) for mounting the guide rod (32) is provided in the end slider (31), and a guide spring (33) connected to the guide rod (32) and a tightening screw (34) for fixing the guide spring (33) are installed in the stepped through hole (311).

2. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 1, characterized in that: The movable platen (4) is provided with a sliding connection block (13) cooperating with the inclined guide column (12), the sliding connection block (13) having a delayed core-pulling guide column hole (131) for the inclined guide column (12) to pass through, and the inner diameter of the delayed core-pulling guide column hole (131) is larger than that of the inclined guide column (12).

3. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 1, characterized in that: The mold assembly also includes a second demoulding structure for demoulding the top inner side undercut (101), the second demoulding structure including an oblique spring clamping block (6) fixed to the fixed mold plate (5), a second oblique spring block (7) slidably mounted in the mold cavity, a second pull rod (8) for clamping the oblique spring clamping block (6) and the second oblique spring block (7), and a second spring member (9) sleeved on the second pull rod (8), the second oblique spring block (7) being provided with a molding side convex column (721) for molding a side hole, and a boss (722) for molding a side groove, the second oblique spring block (7) being arranged obliquely in the fixed mold plate (5), when the fixed mold plate (5) and the movable mold plate (4) are demoulded and opened, the second spring member (9) recovers its deformation and causes the second oblique spring block (7) to slide obliquely downward, so that the molding side convex column (721) and the boss (722) are demoulded.

4. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 3, characterized in that: The fixed template (5) has a positioning groove (51) for arranging the oblique elastic clamping block (6), the oblique elastic clamping block (6) is provided with a plurality of fixing through holes (61), and the fixed template (5) is provided with fixing screw holes (511) in the positioning groove (51) corresponding one-to-one to the fixing through holes (61).

5. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 3, characterized in that: The second inclined spring block (7) has an inclined spring insertion hole (711) for the second pull rod (8) to be obliquely inserted, and the bottom wall of the inclined spring insertion hole (711) has a locking screw hole (712) fixedly matched with the second pull rod (8), and the second pull rod (8) and the locking screw hole (712) are fixed by threaded matching.

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