一种汽车后背门塑料内饰板的成型模具
By optimizing the structure of the mold for molding plastic interior panels for car tailgates, "one-to-two" production is achieved, solving the problems of low efficiency, high cost, and large dimensional errors in existing technologies, and improving processing efficiency and alignment accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGHAI YOUXIN PLASTIC MOLD CO LTD
- Filing Date
- 2026-04-09
- Publication Date
- 2026-07-17
AI Technical Summary
The existing mold structure for molding plastic interior panels for car tailgates is unreasonable, resulting in low processing efficiency, complicated manufacturing steps, high costs, and large dimensional errors in the finished products.
The structure employs a combination of moving mold components and fixed mold components, including an inner corner core-pulling unit and an outer corner core-pulling unit, to achieve a "one-out-of-two" effect for the finished product, simplifying the manufacturing process and improving alignment accuracy.
It improved processing efficiency, reduced production costs, and minimized dimensional errors in the finished products.
Smart Images
Figure CN224510291U_ABST
Abstract
Claims
1. A molding die for a plastic interior trim panel for a car rear door, comprising a moving mold assembly and a fixed mold assembly respectively arranged front to rear and cooperating with each other, the moving mold assembly including a manifold, a moving template fixed to the rear side of the manifold, and a feed plate fixed to the front side of the manifold, the fixed mold assembly including a fixed template cooperating with the moving template, a fixed mold core embedded in the interior of the front side of the manifold and cooperating with the moving template, a base plate fixed to the rear side of the fixed template, and a discharge mechanism disposed between the base plate and the fixed template, characterized in that: The moving template has two symmetrically distributed alignment cavities on its end face. Correspondingly, the fixed mold core has two symmetrically arranged alignment protrusions on its end face that cooperate with the two alignment cavities. A symmetrically arranged shaping block is formed between the bottom right side of each alignment cavity and the inner walls of the upper and lower sides. Correspondingly, a symmetrically distributed limiting cavity is opened on the end face of each alignment protrusion. The two limiting cavities cooperate with the two shaping blocks respectively. A positioning cavity is formed between the left outer wall of each shaping block and the left inner wall of the alignment cavity it belongs to. Correspondingly, a symmetrically arranged partition block is formed on the right side of the bottom surface of each limiting cavity facing the moving template. The two partition blocks cooperate with the two positioning cavities respectively. A symmetrically arranged molding notch is formed on the left edge of the end of each partition block. An inner corner core-pulling unit is provided on the upper side of one of the upper partition blocks and on the lower side of one of the lower partition blocks, and an outer corner core-pulling unit is provided on the lower side of one of the upper partition blocks and on the upper side of one of the lower partition blocks. The inner corner core-pulling unit includes a first slider that is slidably connected to the front side of the fixed template in the vertical direction and a first pull rod that is obliquely inserted in the first slider. The outer corner core-pulling unit includes a second slider that is slidably connected to the front side of the fixed template in the vertical direction and a second pull rod that is obliquely inserted in the second slider. The front ends of the first pull rod and the second pull rod are both fixed to the moving template. The first slider and the second slider have a first seat block and a second seat block that mate with the forming notch respectively on the side facing the separator block. A fan-shaped core block is formed on the side facing the forming notch of the first seat block. Correspondingly, a fan-shaped notch cavity that mates with the fan-shaped core block is opened on the side facing the forming notch of the second seat block. The arc-shaped outer wall of the fan-shaped core block is set to the right.
2. The forming mold for a plastic interior panel of a rear door of an automobile according to claim 1, wherein A limiting block is formed on the inner wall of the fan-shaped notch, and correspondingly, a limiting cavity that cooperates with the limiting block is opened on the arc-shaped outer wall of the fan-shaped core block.
3. The forming mold for a plastic interior panel of a back door of an automobile according to claim 2, wherein The first base block has an insert block formed outward on the side facing the forming notch, located behind the fan-shaped core block. Correspondingly, the second base block has a splicing groove on the side facing the forming notch, located behind the fan-shaped notch cavity and communicating with the inside of the fan-shaped notch cavity, and cooperating with the insert block.
4. The molding die for a plastic interior panel of a rear door of an automobile according to claim 1, characterized by Each of the shaping blocks has a symmetrically arranged molding cavity on its end face. Correspondingly, each of the limiting cavity has a symmetrically arranged molding protrusion on its bottom face toward the moving template. The two molding protrusions cooperate with the two molding cavities respectively.
5. The molding die for a plastic interior panel of a rear door of an automobile according to claim 3, characterized by A corner boss is formed between the bottom surface of the two molding notches facing the second slider and its right inner wall. Correspondingly, a corner notch that cooperates with the corner boss is opened at the corner of the corresponding side of the insertion block on the first slider of the two inner corner core-pulling units.
6. The molding die for a plastic interior panel of a rear door of an automobile according to claim 4, wherein A splicing notch is provided between the right inner wall of each limiting cavity and the right outer wall of the corresponding alignment protrusion. Correspondingly, a splicing groove is provided between the right inner wall of each forming cavity and the right outer wall of the moving template. The left opening of the splicing groove cooperates with the splicing notch.
7. The molding die for a plastic interior panel of a rear door of an automobile according to claim 6, wherein Each of the splicing grooves is further provided with a splicing unit, which includes a third slider that is slidably connected to the front side of the fixed template and located to the right of the splicing notch in the left-right direction, and a third pull rod that is obliquely inserted into the third slider. The front part of the third slider is movably disposed in the splicing groove, and the front end of the third pull rod is fixed inside the splicing groove.
8. The forming mold for a plastic interior panel of a back door of an automobile according to claim 7, wherein The third slider has a triangular insert on the side facing the alignment protrusion that matches the splicing notch. The front edge of the corner of the triangular insert has a break surface that matches both the outer wall of the forming protrusion and the inner wall of the alignment protrusion.