Mould structure of plastic product of auxiliary instrument panel of automobile

Abstract

The invention relates to a mold structure of an automobile auxiliary fascia console plastic product, and belongs to the technical field of molds. The mold structure of the automobile auxiliary fascia console plastic product comprises a first demolding structure used for demolding an end face inner side structure glue position inverted buckle. The first demolding structure comprises a main sliding block mechanism, an inclined elastic sliding block mechanism which is installed on a main sliding block in a sliding mode and used for forming an end face inner side structure glue position inverted buckle, and a guide mechanism used for guiding the inclined elastic sliding block mechanism to slide. The main sliding block mechanism comprises main sliding blocks and inclined guide columns, the main sliding blocks are symmetrically arranged on the fixed mold and used for forming the side wall of an instrument board body, the inclined guide columns are arranged on the movable mold and used for driving the main sliding blocks to move, and the guide mechanism is fixed to the fixed mold. The inclined elastic sliding block moves downwards away from the end inverted buckle under the guiding effect of the guiding mechanism. The demolding device has the effect of improving the demolding efficiency of the instrument board body.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a mold structure of a plastic product of an automobile auxiliary instrument panel. Background Art

[0002] The car sub-dashboard is an important part of the car interior. It not only bears the function of displaying vehicle information, but also affects the driver's operating convenience and driving experience. With the rapid development of the automobile industry, consumers have higher and higher requirements for the aesthetics, functionality and safety of car interiors, resulting in more and more complex sub-dashboard designs, and the corresponding injection mold structures have also become more complex.

[0003] Reference Figure 1 and Figure 2 A vehicle auxiliary instrument panel includes an instrument panel body, and the inner side of the top and the inner side of the end of the instrument panel body are symmetrically designed with undercut glue position features. The top side undercut is an inner hole and a side groove, and the inner side of the end is undercut to form a trumpet-shaped opening glue position structure that is at an angle to the main demoulding direction.

[0004] The current injection mold designs the instrument panel as a conventional inclined ejector, which not only makes the mold structure very complicated, but also easily causes damage to the undercut glue position, affecting the quality of the product. Summary of the invention

[0005] In order to improve the demoulding efficiency of the dashboard body and reduce the probability of damage caused by undercutting of the structural glue position on the inner side of the end face when the product is demoulded, the present application provides a mold structure for a plastic product of an automobile auxiliary dashboard.

[0006] The mold structure of a plastic product of a vehicle auxiliary instrument panel provided in this application adopts the following technical solution: A mold structure for a plastic product of an automobile auxiliary instrument panel, comprising a first demolding structure for demolding the inner structural glue position of an end face, the first demolding structure comprising a main slider mechanism, an oblique elastic slider mechanism slidably arranged on the main slider mechanism, and a guide mechanism for controlling the movement direction of the oblique elastic slider mechanism, the main slider mechanism comprising a main slider symmetrically arranged on a movable template and used for molding the side wall of the auxiliary instrument panel body, and an oblique guide column arranged on a fixed template and used for driving the main slider to move, the guide mechanism being arranged on the movable template, when the main slider slides away from the cavity, the oblique elastic slider mechanism moves obliquely downward to disengage from the inner structural glue position of the end face under the guiding action of the guide mechanism.

[0007] By adopting the above technical solution, when the dashboard body in the injection mold is cooled and solidified, the movable mold moves away from the fixed mold, the fixed mold and the inclined guide pillars move synchronously, and the main slider moves away from the product under the action of the inclined guide pillars. The main slider and the inclined elastic slider mechanism also move relative to the main slider, but under the action of the guide mechanism, the inclined elastic slider mechanism moves obliquely downward relative to the undercut of the structural glue position on the inner side of the end face, and the oblique elastic slider can be separated from the undercut of the structural glue position on the inner side of the end face, and then the product is completely ejected through the ejection mechanism. The above structure improves the demolding efficiency of the mold by adopting a mechanical structure. Compared with the use of oil cylinders and air cylinders, it simplifies the mold structure and reduces the mold manufacturing cost.

[0008] Optionally, the oblique elastic slider mechanism includes a first oblique elastic block slidably mounted on the main slider, a first spring member with two ends respectively abutting against the first oblique elastic block and the main slider, and a fixed-distance pull rod connecting the first oblique elastic block and the main slider.

[0009] By adopting the above technical scheme, the structural composition of the oblique elastic slider mechanism is disclosed, and the connection between the first oblique elastic block and the main slider is realized by a fixed-distance pull rod. When the main slider is opened outward, the first oblique elastic block can slide relative to the main slider through the first spring member. The structure of the oblique elastic slider mechanism is simple, and it is convenient to assemble and process.

[0010] Optionally, the first inclined elastic block includes a sliding body and a first molded portion, the main sliding block is provided with an inclined sliding hole matched with the sliding body on the side facing the auxiliary instrument panel body, and the main sliding block is provided with an abutment groove on the bottom wall of the inclined sliding hole for the end of the first spring member to abut against; When the mold is closed, the first molding portion partially abuts against the core, and the tail of the sliding body is in the sliding inclined hole.

[0011] By adopting the above technical solution, the sliding body and the sliding inclined hole of the main slider slide together to play a supporting, positioning and guiding role, ensuring that the first inclined elastic block is accurately positioned in the mold and moves stably. The first molding part is used to form the inner side of the end surface of the instrument panel body, and the two ends of the first elastic member are respectively abutted against the abutting groove of the main slider and the first inclined elastic block.

[0012] Optionally, a stepped hole connected to the inclined sliding hole and arranged for the distance rod is opened on the outer side of the main sliding block, and the distance rod is limitedly slidable in the stepped hole.

[0013] By adopting the above technical solution, the distance pull rod is passed through the outer side of the main slider to the inclined sliding hole, the end of the distance pull rod and the end of the first inclined spring block are fixed, and the distance pull rod is limited and slid in the stepped hole. When the main slider is opened outward, the first inclined spring block is demoulded downward synchronously under the combined action of the spring force and the resistance of the glue position on the side wall of the product.

[0014] Optionally, the guiding mechanism includes an end slider fixed to the end of the movable template and a guide rod arranged on the end slider, and the first forming part is provided with a limiting groove matching the end of the guide rod along the vertical direction.

[0015] By adopting the above technical solution, the setting of the guide mechanism can guide and limit the demoulding movement direction of the first inclined spring block, so that the first inclined spring block opens horizontally with the main slider. At the same time, under the control of the guide rod, the limiting groove makes the first inclined spring block move downward, thereby disengaging from the undercut of the glue position on the inner side of the end face.

[0016] Optionally, the guide rod is slidably disposed on the end slider, a stepped through hole for installing the guide rod is opened in the end slider, a guide spring connected to the guide rod and a tightening screw for fixing the guide spring are installed in the stepped through hole.

[0017] By adopting the above technical scheme, a matching method of the guide rod and the end slider is disclosed, the spring clamping screw presses the guide rod through the spring, and the guide rod, spring and clamping screw are installed in the end slider, so that when the main slider is opened and the end slider moves outward, the first inclined spring block can always contact the limit groove.

[0018] Optionally, a sliding connection block cooperating with the inclined guide column is provided on the movable template, and the sliding connection block has a delayed core-pulling guide column hole for the inclined guide column to pass through, and the inner diameter of the delayed core-pulling guide column hole is larger than that of the inclined guide column.

[0019] By adopting the above technical solution, the sliding connection block plays a source of power for the extraction through the inclined guide column, and the sliding connection block and the main slider are fixedly connected, which saves materials. When the mold is opened and the inclined guide column moves upward, it can drive the main slider to move horizontally outward. The inner diameter of the inclined through hole is larger than the inclined guide column, which delays the core pulling, so that the two main sliders can fix the product first when the mold is opened, ensuring that the cavity core is separated from the product first.

[0020] Optionally, it also includes a second demolding structure for inverted demolding of the inner side surface of the top end, the second demolding structure includes an oblique spring clamping block fixed to the fixed template, a second oblique spring block slidably installed in the cavity, a second pull rod that clamps the oblique spring clamping block and the second oblique spring block, and a second spring member sleeved on the second pull rod, the second oblique spring block is provided with a forming side convex column for forming a side hole, and a boss for forming a side groove, the second oblique spring block is arranged obliquely in the fixed template, when the fixed template and the movable template are demolded and opened, the second spring member restores the deformation and causes the second oblique spring block to slide obliquely downward, so that the forming side convex column and the boss are demolded.

[0021] By adopting the above technical solution, the setting of the second demolding structure can simplify the mold structure, facilitate processing, and increase the service life of the mold. When the mold is opened, the movable and fixed mold plates are separated from each other, the second spring member restores its deformation, and the second inclined spring block moves horizontally in the fixed mold plate in the direction away from the undercut of the product, so that the molding boss and boss on the molding inclined spring block are disengaged from the inner undercut of the product.

[0022] Optionally, the fixed template has a positioning groove for arranging the oblique elastic compression block, the oblique elastic compression block is provided with a plurality of fixing through holes, and the fixed template is provided with fixing screw holes in the positioning groove corresponding to the fixing through holes one by one.

[0023] By adopting the above technical solution, the oblique elastic clamping block is positioned on the movable template through the positioning groove, and then the oblique elastic clamping block and the movable template are fixedly connected by bolts. The above oblique elastic clamping block has a simple structure, is durable and easy to process.

[0024] Optionally, the second inclined spring block has an inclined spring insertion hole for the oblique insertion of the second pull rod, and the bottom wall of the inclined spring insertion hole has a locking screw hole fixedly matched with the second pull rod, and the second pull rod and the locking screw hole are fixed by threaded matching.

[0025] By adopting the above technical solution, the second oblique elastic block mechanism is designed in the fixed template. When the movable and fixed templates are opened, the second oblique elastic block in the fixed template moves downward and inwards under the joint action of the spring force and the plastic undercut resistance to disengage from the undercut. The second spring piece is sleeved with a second pull rod, and the two ends are respectively abutted against the oblique elastic pressing block and the second oblique elastic block. The second pull rod plays the dual role of a spring support rod and controlling the ejection distance of the second oblique elastic block. The overall structure is simple, easy to process and assemble, and has high stability.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: The present application arranges the main slider mechanism, the oblique elastic slider mechanism and the guide mechanism. When the movable fixed mold is opened, the first oblique elastic block moves obliquely downward and inward relative to the product, so that the first oblique elastic block is separated from the inner undercut of the end face of the product, so that the first molding part is smoothly separated from the undercut, thereby improving the demoulding and ejection efficiency of the auxiliary instrument panel, and greatly reducing the probability of the undercut glue position structure on the inner side of the end face being damaged by tension; The present application provides a guide spring so that when the first oblique elastic block moves inward, the guide rod is always in the limiting groove of the first oblique elastic block under the action of the guide spring, thereby controlling the downward oblique movement direction of the first oblique elastic block during demoulding; The present application sets up the second demoulding structure so that when the movable fixed mold is opened, the second inclined spring block and the inner side surface of the top of the product are simultaneously disengaged, thereby simplifying the mold structure, ensuring the quality of the product, and improving the demoulding efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The invention relates to a car auxiliary instrument panel which needs to be injection molded in the background technology.

[0028] Figure 2 yes Figure 1 A local enlarged schematic diagram of point A in the middle.

[0029] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 4 It is an exploded schematic diagram of the guide mechanism and the movable mold of the embodiment of the present application.

[0031] Figure 5 It is a cross-sectional schematic diagram of the main slider mechanism and the oblique elastic slider mechanism of the embodiment of the present application.

[0032] Figure 6 It is a top view of the oblique elastic slider mechanism and the main slider mechanism of the embodiment of the present application.

[0033] Figure 7 yes Figure 6 Schematic diagram of the cross section of AA.

[0034] Figure 8 It is a cross-sectional schematic diagram of the spring groove in the sliding body of the embodiment of the present application.

[0035] Fig. 9 It is a schematic diagram of the inclined sliding hole, the abutment groove and the stepped hole of the main slider in the embodiment of the present application.

[0036] Fig.10 It is an exploded schematic diagram of the guide mechanism and the oblique elastic slider mechanism of the embodiment of the present application.

[0037] Fig.11 It is a structural schematic diagram of the auxiliary instrument body, the oblique elastic slider mechanism and the guide rod of the embodiment of the present application.

[0038] Fig.12 It is a schematic structural diagram of the second inclined spring block, the second pull rod and the fixed mold in an embodiment of the present application.

[0039] Fig.13 It is an exploded schematic diagram of the second demoulding structure of the embodiment of the present application.

[0040] Fig.14 It is a cross-sectional schematic diagram of the second demoulding structure of the embodiment of the present application.

[0041] Description of reference numerals: 1. main slider mechanism; 11. main slider; 111. sliding inclined hole; 112. abutting groove; 113. stepped hole; 12. inclined guide pillar; 13. sliding connection block; 131. delayed core pulling guide pillar hole; 2. oblique elastic slider mechanism; 21. first oblique elastic block; 211. sliding body; 2111. spring groove; 212. first forming part; 2121. first forming feature; 2122. limiting groove; 22. first spring member; 23. fixed distance pull rod; 231. limiting end; 3. guide mechanism; 31. end slider; 311. stepped through hole; 32. guide rod; 33. Guide spring; 34. Tightening screw; 4. Moving template; 5. Fixed template; 51. Positioning groove; 511. Fixing screw hole; 6. Oblique spring clamping block; 61. Fixed through hole; 62. Oblique through hole; 7. Second oblique spring block; 71. Second sliding part; 711. Oblique spring insertion hole; 712. Locking screw hole; 713. Positioning platform; 72. Second molding part; 721. Molding side convex column; 8. Second pull rod; 81. Locking part; 82. Limiting part; 9. Second spring member; 10. Sub-instrument panel body; 101. Top inner side face undercut; 102. End inner side structural glue undercut. DETAILED DESCRIPTION

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and 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 embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to 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.

[0043] The following is combined with Figure 1-14 This application is described in further detail.

[0044] The present application embodiment discloses a mold structure for a plastic product of a vehicle auxiliary instrument panel. The mold structure in this embodiment is mainly used for Figure 1 and Figure 2 The demoulding of the auxiliary instrument panel body 10 is shown, so the related features of the auxiliary instrument panel body 10 that appear later can be directly referred to Figure 1 and Figure 2 , no separate reference to the accompanying drawings is made.

[0045] Reference Figure 3 and Figure 4 A mold structure of a plastic product of a car auxiliary instrument panel includes a first demoulding structure for demoulding the inner side structural adhesive position undercut 102 of the end face and a second demoulding structure for demoulding the inner side undercut 101 of the top. In this embodiment, the X direction is the height direction, the fixed mold plate 5 is located at the top of the X direction, and the movable mold plate 4 is located at the bottom.

[0046] The first demoulding structure includes a main slider mechanism 1 , an oblique elastic slider mechanism 2 slidably mounted on the main slider mechanism 1 , and a guide mechanism 3 for controlling the moving direction of the oblique elastic slider mechanism 2 .

[0047] The main slider mechanism 1 includes a main slider 11 symmetrically arranged on the top of the movable plate 4 and used to form the side wall of the auxiliary instrument panel body 10, and an inclined guide column 12 slidingly matched with the main slider 11. The main slider 11 and the top surface of the movable plate 4 are slidingly matched, and a plurality of groups of slide rails cooperating with the main slider 11 are arranged at intervals along the length direction on the movable plate 4.

[0048] Reference Figure 5 The oblique guide column 12 is tilted from bottom to top toward the auxiliary instrument panel main body 10, and a sliding connection block 13 that slides and cooperates with the oblique guide column 12 is provided on the movable template 4. The sliding connection block 13 and the main slider 11 are embedded and fixedly connected by bolts through a T-shaped structure. The sliding connection block 13 is provided with a delayed core-pulling guide column hole 131 that passes through the two side end surfaces and cooperates with the oblique guide column 12. The inner diameter of the delayed core-pulling guide column hole 131 in the horizontal direction is larger than the outer diameter of the oblique guide column 12, which plays a role of delayed core-pulling, allowing the movable and fixed templates to separate from the product first, ensuring that the product is not easily deformed during the molding process. The top of the inclined guide column 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 auxiliary instrument panel body 10 under the action of the inclined guide column 12 .

[0049] Combination Figures 6 to 9 The oblique elastic slider mechanism 2 includes a first oblique elastic block 21, a first spring member 22 and a distance pull rod 23. The first oblique elastic block 21 is slidably installed on the main slider 11, and includes a sliding body 211 and a first molding portion 212. The sliding body 211 is a rectangular block in the shape of a strip as a whole, and an oblique sliding hole 111 cooperating with the sliding body 211 is provided on the inner side of the main slider 11. In the height direction, the sliding body 211 is arranged to be tilted downward toward the auxiliary instrument panel main body 10. In the horizontal direction, the sliding body 211 is arranged to be tilted toward the center direction of the auxiliary instrument panel main body 10.

[0050] The first spring member 22 is a mold 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 abutment groove 112 for the other end of the first spring member 22 to abut against. In this embodiment, the first inclined spring block 21 is installed with two first spring members 22, and the two first spring members 22 are respectively arranged on both sides of the end surface of the sliding body 211.

[0051] The distance rod 23 is a metal rod, which is located between the two first spring members 22. A stepped hole 113 connected to the sliding inclined hole 111 and arranged for the metal rod is provided in the main slider 11. The end of the distance rod 23 has a limit end 231 limitedly arranged in the stepped hole 113.

[0052] The end of the distance rod 23 away from the limiting end 231 is fixedly connected to the sliding body 211. In this embodiment, the distance rod 23 and the sliding body 211 are threadedly connected.

[0053] Reference Fig.10 and Fig.11 The first molding part 212 and the sliding body 211 are integrally arranged, and the size of the first molding part 212 is larger than the sliding inclined hole 111, and the depth of the sliding inclined hole 111 is adapted to the length of the sliding body 211, so when the mold is closed for injection molding, the first molding part 212 is sealed and attached to the inner wall of the main slider 11. The end of the first molding part 212 has a first molding feature 2121 for molding the inner side structural glue position undercut 102 of the end surface.

[0054] The guide mechanism 3 is fixed as a whole to one side of the movable platen 4 in the width direction and is located at the end position of the product. The guide mechanism 3 includes an end slider 31 and a guide rod 32. The end slider 31 is fixed to the movable platen 4 by bolts, and the side facing the auxiliary instrument panel body 10 is sealed and fitted with the first molding portion 212.

[0055] The end slider 31 is provided with a stepped through hole 311 penetrating through the two side end surfaces and for the guide rod 32 to slide and arrange. A tightening screw 34 is fixed to one end of the stepped through hole 311 of the end slider 31. A guide spring 33 is arranged between the tightening screw 34 and the end of the guide rod 32, and the guide spring 33 is a blue slingshot. The side wall of the first molded part 212 has a limiting groove 2122 for the guide rod 32 to slide and fit. The top of the limiting groove 2122 is open, and the whole is arranged vertically along the height direction.

[0056] Reference Fig.12 , Fig.13 and Fig.14 The second demoulding structure includes an oblique elastic pressing block 6, a second oblique elastic block 7, a second pull rod 8 and a second spring member 9.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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 .

[0062] 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.

[0063] 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.

[0064] 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; 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.

[0065] 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 an undercut (102) of a structural adhesive position on the inner side of an end face, the first demoulding structure comprising 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) comprising a main slider (11) symmetrically arranged on a movable template (4) and used for molding a side wall of a secondary instrument panel body (10), and an oblique guide column (12) arranged on a fixed template (5) and used for driving the main slider (11) to move, the guide mechanism (3) being arranged on the movable template (4), and 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 guiding action of the guide mechanism (3).

2. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 1, characterized in that: 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).

3. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 2, characterized in that: 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 main 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; 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).

4. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 3, characterized in that: The outer side of the main sliding block (11) is provided with a stepped hole (113) which is connected to the inclined sliding hole (111) and for arranging the distance rod (23); the distance rod (23) is limitedly slidable in the stepped hole (113).

5. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 3, characterized in that: 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), and the first forming portion (212) is provided with a limiting groove (2122) in a vertical direction to cooperate with the end of the guide rod (32).

6. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 5, characterized in that: 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).

7. 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).

8. 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.

9. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 8, 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).

10. The mold structure of a plastic product of a car auxiliary instrument panel according to claim 8, 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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