Injection mold for A-pillar lower trim panel

Abstract

The invention discloses an injection mold for a pillar A lower trim panel. The injection mold comprises a front mold assembly and a rear mold assembly. The front mold assembly comprises a front mold plate, a pouring gate push plate, a pull block and an inclined pulling block, the pull block is fixedly installed on the pouring gate push plate, one end of the inclined pulling block is in inclined sliding fit with the pull block, and the other end of the inclined pulling block is provided with a first forming end. The rear mold assembly comprises a rear mold plate, a lateral sliding block, a pressing rod, a first inclined ejector block and a second inclined ejector block, the lateral sliding block is slidably installed on the rear mold plate, the pressing rod is installed on the lateral sliding block in a floating mode, one end of the pressing rod is a free end, the other end of the pressing rod is provided with a second forming end, and the combination of the first forming end and the second forming end is used for forming the lap joint face on the lower trim panel. The first inclined ejector block is used for forming a supporting base on the lower decoration plate, and the second inclined ejector block is used for forming a clamping hook on the lower decoration plate. According to the A column lower trim panel injection mold, the inclined pulling block, the lateral sliding block and the pressing rod are arranged in the front mold assembly and the rear mold assembly, multi-direction movement is accurately controlled, step-by-step demolding of a complex structure is achieved, and complete forming and efficient production of a lower trim panel are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts molds, and more specifically to an A-pillar lower trim plate injection mold. Background Art

[0002] In automobile manufacturing, the A-pillar lower trim is mainly used to cover the bottom area of ​​the A-pillar structure, usually near the door. This component not only beautifies the interior design, but also protects and shields the body structure. Due to its unique installation location, the A-pillar lower trim faces certain technical challenges in design and manufacturing, especially in the difficulty of molding and demolding.

[0003] Figure 1 The A-pillar lower trim shown has a certain curved structure, usually to adapt to the curved shape of the vehicle and make it fit closely with the body. At the same time, one end of it has a special-shaped overlap surface with a through hole, so that it can be seamlessly connected with other interior parts. The bottom of the lower trim is equipped with a support seat and a hook to ensure a stable installation. However, the multi-faceted structure of the support seat, the hook and the overlap surface increases the manufacturing complexity, especially in the injection molding process, which is prone to demolding problems.

[0004] Conventional mold design methods use the front and rear molds to close to form the overlap surface. However, due to the different orientations of the support seat and the hook, a tilting device needs to be added to the mold to facilitate smooth demolding after molding. However, such a design increases the difficulty of mold manufacturing and may affect the complete molding of the overlap surface, resulting in defective products or reduced efficiency in actual production. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art to a certain extent. To this end, the present invention proposes an A-pillar lower trim injection mold, in which an oblique drawer block, a lateral slider and a pressure rod are arranged in the front and rear mold components, and the gradual demoulding of the complex structure is achieved by accurately controlling the multi-directional movement, thereby ensuring the complete molding and efficient production of the lower trim.

[0006] The technical solution adopted by the present invention is: to provide an A-pillar lower trim injection mold, including a front mold component and a rear mold component; The front mold assembly includes a front mold plate, a runner push plate, a pull block and an oblique pull block, wherein the pull block is fixedly mounted on the runner push plate, one end of the oblique pull block is obliquely slidably matched with the pull block, and the other end has a first molding end; The rear mold assembly includes a rear mold plate, a lateral slider, a pressure rod, a first inclined lift block and a second inclined lift block. The lateral slider is slidably mounted on the rear mold plate, and the pressure rod is floatingly mounted on the lateral slider. One end of the pressure rod is a free end, and the other end has a second forming end. The combination of the first forming end and the second forming end is used to form the overlapping surface on the lower decorative panel, the first inclined lift block is used to form the support seat on the lower decorative panel, and the second inclined lift block is used to form the hook on the lower decorative panel.

[0007] The design of the runner push plate used in the above structure indicates that the mold is a three-plate mold structure. During the mold opening process, the front template is separated from the runner push plate, and the pull block drives the oblique pull block to slide relative to the front template to perform an inner pull action, so that the first molding end on the oblique pull block is out of contact with the overlapping surface on the lower decorative plate. This step effectively reduces the demoulding resistance and avoids defects on the overlapping surface due to forced demoulding. Next, the front template is further separated from the rear template, and the two sides are relatively far away, thereby pushing the mold to open as a whole. At this time, the second molding end on the pressure rod is also detached from the other side of the overlapping surface, completing the demoulding of the molding part of the overlapping surface.

[0008] In addition, the configuration of the lateral slider increases the flexibility of the mold, allowing the mold to be accurately demolded in multiple directions. This design also uses the first and second inclined lift blocks to form the support seat and the hook respectively, allowing the complex lower trim structure to be demolded smoothly after one-piece molding.

[0009] According to one embodiment of the present invention, a spring is provided between the pressure rod and the lateral slider, and the spring has an elastic tendency to cause the pressure rod to move away from the oblique draw block; the spring provides continuous elastic tension, so that the pressure rod automatically moves away from the oblique draw block, thereby achieving a smooth and efficient separation action during demolding, and effectively avoiding molding defects caused by friction or jamming.

[0010] According to one embodiment of the present invention, the front template has a guide groove, and the guide groove is in close contact with the free end of the pressure rod when the mold is closed, ensuring the stability and accuracy of the pressure rod position, thereby improving the alignment of the mold closure and the accuracy of the decorative panel molding.

[0011] According to one embodiment of the present invention, the guide groove includes a tightening section and a loosening section. When the mold is closed, the tightening section is tightly pressed against the free end. When the mold is opened, the loosening section makes room for the pressure rod to move away from the oblique pull-out block, so that it can be smoothly released in the direction away from the oblique pull-out block to achieve smooth demolding.

[0012] According to one embodiment of the present invention, the front template is fixedly installed with an inclined guide column, and the lateral slider has an inclined guide hole that slides with the inclined guide column. This structure ensures that the lateral slider moves along a predetermined path under the guidance of the inclined guide column, thereby accurately controlling the demolding direction and optimizing the molding accuracy.

[0013] According to one embodiment of the present invention, the lateral slider is provided with a mounting groove, the spring and the pressure rod are both arranged in the mounting groove, and the second formed end of the pressure rod extends out of the mounting groove, the mounting groove is connected to a limiting block, and the free end of the pressure rod extends out of the limiting block; the mounting groove is connected to the limiting block to prevent the pressure rod from moving out of the mounting groove.

[0014] According to an embodiment of the present invention, the pressure rod is provided with a shoulder, the spring is sleeved on the pressure rod, and one end of the spring abuts against the shoulder, and the other end abuts against the bottom of the installation groove.

[0015] According to one embodiment of the present invention, the rear mold assembly also includes an ejection cylinder and a push plate, the ejection cylinder is fixedly mounted on the rear mold plate, and the piston rod end of the ejection cylinder is fixedly connected to the push plate, and the first inclined ejector block and the second inclined ejector block are both fixedly mounted on the push plate; through the action of the cylinder, the push plate can effectively push the inclined ejector block to achieve precise ejection during the mold opening process, ensuring smooth demolding of complex structures.

[0016] According to one embodiment of the present invention, a first straight top block and a second straight top block are fixedly mounted on the top plate.

[0017] According to one embodiment of the present invention, the pulling block has an inclined surface and a T-shaped block located on the inclined surface, and the oblique pulling block has a T-shaped groove that slides with the T-shaped block; the combination of the T-shaped block and the T-shaped groove constitutes an inclined wedge structure, which changes the linear motion of the front template and the runner push plate into the oblique motion of the oblique pulling block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional diagram of the lower trim panel of the A-pillar in an embodiment of the present invention.

[0020] Figure 2 It is a three-dimensional diagram of the front mold assembly in an embodiment of the present invention.

[0021] Figure 3It is a partial structural diagram of the front mold assembly in an embodiment of the present invention.

[0022] Figure 4 It is a three-dimensional diagram of the lower decorative plate and the oblique drawer block in an embodiment of the present invention.

[0023] Figure 5 It is a three-dimensional diagram of the rear mold assembly in an embodiment of the present invention.

[0024] Figure 6 It is a three-dimensional diagram of the lower decorative plate and the lateral slider in an embodiment of the present invention.

[0025] Figure 7 It is a top view of the lower trim panel and the lateral slider in an embodiment of the present invention.

[0026] Figure 8 for Figure 7 Section view along line AA.

[0027] Fig. 9 It is a stereoscopic diagram of a lateral slider in an embodiment of the present invention.

[0028] Fig.10 It is a three-dimensional diagram of the pressure rod in the embodiment of the present invention.

[0029] Fig.11 It is a partial structural diagram of the rear mold assembly in an embodiment of the present invention.

[0030] Fig.12 It is a three-dimensional view of the ejection portion of the rear mold assembly in an embodiment of the present invention.

[0031] Fig.13 It is a three-dimensional diagram of the first inclined ejector block and the rear mold insert in an embodiment of the present invention.

[0032] Fig.14 It is a three-dimensional diagram of the oblique drawer block, the lower decorative plate and the lateral sliding block in an embodiment of the present invention.

[0033] Fig.15 It is a cross-sectional view of the oblique drawer block, the lower decorative plate and the lateral sliding block in an embodiment of the present invention.

[0034] Fig.16 It is a partial enlarged view of the front template in the embodiment of the present invention.

[0035] Description of the numbers in the figure: 10. Lower trim panel; 20. Front mold assembly; 30. Rear mold assembly; 11. Support seat; 12. Lapping surface; 13. Hook; 21. Front template; 22. Runner push plate; 23. Fixed distance pull rod; 24. Guide column; 25. Pull block; 26. Oblique pull block; 27. Oblique guide column; 28. Guide groove; 25a, T-shaped block; 25b, inclined surface; 26a, T-shaped groove; 26b, first molding end; 28a, tightening section; 28b, loosening section; 31. rear mold plate; 32. mold foot; 33. lateral slider; 34. pressure rod; 35. spring; 36. limit block; 37. ejector cylinder; 38. ejector plate; 39. first inclined ejector block; 310. second inclined ejector block; 311. rear mold insert; 312. first straight ejector block; 313. second straight ejector block; 33a, oblique guide hole; 33b, mounting groove; 34a, second molded end; 34b, shoulder; 34c, free end. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Embodiment 1

[0037] Combination Figure 1 As shown, in this embodiment, the injection molded product is a lower trim panel 10 of an automobile A-pillar, which has a curved surface shape as a whole. One end of the lower trim panel 10 of the A-pillar has a lap joint surface 12 with a square through hole. The outer surface of the lower trim panel 10 is a decorative surface facing the interior space of the vehicle, and the inner surface has a support seat 11 and a plurality of hooks 13, and the inner surface of the lower trim panel 10 has a reinforcing rib structure. The support seat 11, the hook 13 and the lap joint surface 12 are oriented in different directions.

[0038] like Figure 2-16 As shown, in this embodiment, an injection mold of an A-pillar lower trim panel 10 is disclosed, comprising a front mold assembly 20 and a rear mold assembly 30; the front mold assembly 20 comprises a front mold plate 21, a runner push plate 22, a pull block 25 and an oblique draw block 26, the pull block 25 is fixedly mounted on the runner push plate 22, one end of the oblique draw block 26 is obliquely slidably matched with the pull block 25, and the other end has a first molding end 26b; The rear mold assembly 30 includes a rear mold plate 31, a lateral slider 33, a pressure rod 34, a first inclined top block 39 and a second inclined top block 310. The lateral slider 33 is slidably mounted on the rear mold plate 31. The pressure rod 34 is floatingly mounted on the lateral slider 33. One end of the pressure rod 34 is a free end 34c, and the other end has a second molding end 34a. The combination of the first molding end 26b and the second molding end 34a is used to mold the lap surface 12 on the lower trim panel 10. The first inclined top block 39 is used to mold the support seat 11 on the lower trim panel 10. The second inclined top block 310 is used to mold the hook 13 on the lower trim panel 10.

[0039] Combination Figure 2 As shown, in this embodiment, a plurality of distance tie rods 23 are provided between the front template 21 and the runner push plate 22 , a guide column 24 is provided at each of the four corners of the front template 21 , and correspondingly, the rear template 31 has a guide sleeve that slidably cooperates with the guide column 24 .

[0040] Combination Figure 3-4 As shown, one end of a pull block 25 is fixedly mounted on the inner surface of the runner push plate 22, and the other end of the pull block 25 is provided with an inclined surface 25b, and a T-shaped block 25a is provided on the inclined surface 25b. A T-shaped groove 26a is provided at one end of the inclined withdrawal block 26 away from the first molding end 26b, and the T-shaped groove 26a and the T-shaped block 25a are combined to form an inclined wedge structure. During the mold opening process, the first parting surface between the front template 21 and the runner push plate 22 is opened, the front template 21 is separated from the runner push plate 22, and the pull block 25 drives the inclined withdrawal block 26 to slide relative to the front template 21 to perform an inner withdrawal action, so that the first molding end 26b on the inclined withdrawal block 26 is out of contact with the lap surface 12 on the lower decorative plate 10.

[0041] Furthermore, combined with Figure 5-8 As shown, in this embodiment, mold feet 32 ​​are installed on both sides of the rear template 31, and the rear template 31 and the front template 21 are the second parting surface. The rear template 31 is slidably installed with a lateral slider 33, and the lateral slider 33 has an inclined guide hole 33a. Correspondingly, the front template 21 has an inclined guide column 27 that slides with the inclined guide hole 33a. The lateral slider 33 has a molding structure for molding one side of the lap joint 12. Among them, the pressure rod 34 is elastically installed on the lateral slider 33, and the pressure rod 34 passes through the inner and outer ends of the lateral slider 33. The inner end of the pressure rod 34 has a second molding end 34a, and the combination of the second molding end 34a and the molding structure of the lateral slider 33 is used to mold one side of the lap joint 12, and the second molding end 34a is used to mold one side of the square through hole on the lap joint 12, and the corresponding second molding end 34a on the inclined draw block 26 is used to mold the other side of the square through hole.

[0042] Specifically, a spring 35 is provided between the pressure rod 34 and the lateral slider 33, and the spring 35 has an elastic tendency to move the pressure rod 34 away from the oblique draw block 26; the spring 35 provides a continuous elastic tension, so that the pressure rod 34 automatically moves away from the oblique draw block 26, thereby achieving a smooth and efficient separation action during demoulding, and effectively avoiding molding defects caused by friction or jamming. The lateral slider 33 is provided with a mounting groove 33b, the spring 35 and the pressure rod 34 are both arranged in the mounting groove 33b, and the second molding end 34a of the pressure rod 34 extends out of the mounting groove 33b, the mounting groove 33b is connected to the limiting block 36, and the free end 34c of the pressure rod 34 extends out of the limiting block 36. The pressure rod 34 is provided with a shoulder 34b, the spring 35 is sleeved on the pressure rod 34, and one end of the spring 35 abuts against the shoulder 34b, and the other end abuts against the bottom of the mounting groove 33b.

[0043] Furthermore, combined with Figure 9-10 As shown, in this embodiment, the middle part of the pressure rod 34 has a circle of shoulder 34b, and the shoulder 34b is formed by the outer peripheral surface of the pressure rod 34 protruding radially outward. The mounting groove 33b has an opening, and the limit block 36 can detachably block the opening, and the shoulder 34b is against the limit block 36 on the side away from the spring 35. The free end 34c of the pressure rod 34 extends out of the limit block 36 and protrudes from the outer surface of the limit block 36. The other end of the pressure rod 34 away from the free end 34c is connected to a molding block, and the molding block has a second molding end 34a. The first molding end 26b has a protrusion adapted to the square through hole, and the second molding end 34a has a groove adapted to the square through hole. When the mold is closed, the protrusion and the groove collide to form a square through hole.

[0044] Specifically, combined Figure 2 and Fig.16 As shown, the front template 21 has a guide groove 28, and the guide groove 28 is tightly against the free end 34c of the pressure rod 34 when the mold is closed. The guide groove 28 is in close contact with the free end 34c of the pressure rod 34 when the mold is closed. The guide groove 28 includes a tightening section 28a and a loosening section 28b. When the mold is closed, the tightening section 28a is tightly against the free end 34c, and when the mold is opened, the loosening section 28b makes room for the pressure rod 34 to move away from the inclined drawer block 26.

[0045] Furthermore, in the present embodiment, during the mold opening process, after the first parting surface is opened, the second parting surface is opened accordingly. Under the action of the inclined guide column 27, the lateral slider 33 moves laterally. Since the groove bottoms of the abutting section 28a and the loosening section 28b are both inclined surfaces 25b, under the action of the spring 35, the pressure rod 34 moves outward relative to the lateral slider 33, and the free end 34c of the pressure rod 34 slides along the abutting section 28a, so that the second molding end 34a is pre-detached from the lap surface 12, thereby ensuring the molding quality and preventing the surface of the lap surface 12 from being scratched. Subsequently, the free end 34c is switched from the abutting section 28a to the loosening section 28b, at which time the pressure rod 34 continues to move until it is completely detached from the lap surface 12, thereby avoiding mold damage or molding errors caused by the pressure rod 34 being detached from the lap surface 12 too early. Through this design, the disengagement process of the pressure rod 34 is divided into two stages, which makes the demoulding process smoother, reduces the impact on the molding structure, ensures the stability of the product's appearance and functional characteristics, and thus improves production efficiency and yield rate.

[0046] Furthermore, in this embodiment, the inclination of the pressing section 28a is smaller than that of the releasing section 28b, so that the removal speed of the pressure rod 34 in the pressing section 28a is smaller than that of the releasing section 28b, which effectively controls the movement rhythm of the pressure rod 34, prevents excessive stress from being generated during demoulding, and thus avoids damage to the lap joint 12 and surrounding structures. Since the inclination of the pressing section 28a is relatively small, the movement of the pressure rod 34 is relatively slow, which helps to maintain the protection of the lap joint in the early stage of demoulding and ensure its surface flatness and integrity. In the releasing section 28b, the larger inclination speeds up the removal speed of the pressure rod 34, helps to achieve rapid demoulding, thereby shortening the overall demoulding time and improving production efficiency.

[0047] Specifically, combined Figures 11 to 13 As shown, the rear mold assembly 30 also includes an ejector cylinder 37 and a top plate 38, the ejector cylinder 37 is fixedly mounted on the rear mold plate 31, and the piston rod end of the ejector cylinder 37 is fixedly connected to the top plate 38, the first inclined ejector block 39 and the second inclined ejector block 310 are both fixedly mounted on the top plate 38. The first straight ejector block 312 and the second straight ejector block 313 are fixedly mounted on the top plate 38.

[0048] Furthermore, in this embodiment, the rear mold insert 311 is mounted on the rear mold plate 31, and the first inclined top block 39, the second inclined top block 310, the first straight top block 312 and the second straight top block 313 are all mounted on the rear mold plate 31 and fixedly connected to the top plate 38. The combination of the first inclined top block 39 and the rear mold insert 311 is used to form the support seat 11 on the lower decorative plate 10. The second inclined top block 310 is used to form the hook 13 on the lower decorative plate 10, and the first straight top block 312 and the second straight top block 313 are used to eject the finished product from the rear mold plate 31.

[0049] In this embodiment, the mold opening steps are as follows: First, the first parting surface is opened under the action of the runner push plate 22, so that the front template 21 is separated from the runner push plate 22, the pull block 25 pushes the inclined pull block 26 to complete the inner pull, and the first molding end 26b is out of contact with the lap surface 12 of the lower decorative panel 10.

[0050] As the first parting surface opens, the second parting surface is separated under the push of the rear template 31. At this time, the inclined guide column 27 drives the lateral slider 33 to move sideways, and the free end 34c of the pressure rod 34 slides along the abutting section 28a, so that the second molding end 34a is pre-detached from the lap joint surface 12 to avoid damage to the lap joint surface 12.

[0051] The free end 34c of the pressing rod 34 switches from the pressing section 28a to the releasing section 28b, and the pressing rod 34 continues to move under the action of the spring 35 until it completely separates from the overlapping surface 12, thereby avoiding mold damage or molding errors caused by premature separation.

[0052] Under the action of the ejection cylinder 37, the ejector plate 38 drives the first inclined ejector block 39, the second inclined ejector block 310, the first straight ejector block 312 and the second straight ejector block 313 to respectively eject the support seat 11 and the hook 13 structure on the finished product to ensure that the product is completely separated from the mold.

[0053] This mold opening process has been precisely designed, and through multiple segmentation and ejection mechanisms, it achieves smooth demoulding of complex structures, effectively improving the product's molding quality and production efficiency.

[0054] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An A-pillar lower trim injection mold, comprising a front mold assembly and a rear mold assembly, characterized in that: The front mold assembly includes a front mold plate, a runner push plate, a pull block and an oblique pull block, wherein the pull block is fixedly mounted on the runner push plate, one end of the oblique pull block is obliquely slidably matched with the pull block, and the other end has a first molding end; The rear mold assembly includes a rear mold plate, a lateral slider, a pressure rod, a first inclined lift block and a second inclined lift block. The lateral slider is slidably mounted on the rear mold plate, and the pressure rod is floatingly mounted on the lateral slider. One end of the pressure rod is a free end, and the other end has a second forming end. The combination of the first forming end and the second forming end is used to form the overlapping surface on the lower decorative panel, the first inclined lift block is used to form the support seat on the lower decorative panel, and the second inclined lift block is used to form the hook on the lower decorative panel.

2. The A-pillar lower trim injection mold according to claim 1, characterized in that: A spring is arranged between the pressing rod and the lateral sliding block, and the spring has an elastic tendency to make the pressing rod move in a direction away from the oblique draw block.

3. The A-pillar lower trim injection mold according to claim 2, characterized in that: The front template has a guide groove, and the guide groove is tightly against the free end of the pressure rod when the mold is closed.

4. The A-pillar lower trim injection mold according to claim 3, characterized in that: The guide groove comprises a pressing section and a releasing section. When the mold is closed, the pressing section is pressed tightly against the free end. When the mold is opened, the releasing section makes room for the pressure rod to move away from the oblique draw block.

5. The A-pillar lower trim injection mold according to claim 4, characterized in that: The front template is fixedly mounted with an oblique guide column, and the lateral sliding block has an oblique guide hole that is slidably matched with the oblique guide column.

6. The A-pillar lower trim injection mold according to claim 2, characterized in that: The lateral slider is provided with a mounting groove, the spring and the pressure rod are both arranged in the mounting groove, and the second formed end of the pressure rod extends out of the mounting groove, the mounting groove is connected to a limiting block, and the free end of the pressure rod extends out of the limiting block.

7. The A-pillar lower trim injection mold according to claim 6, characterized in that: The pressure rod is provided with a shoulder, the spring is sleeved on the pressure rod, one end of the spring abuts against the shoulder, and the other end abuts against the bottom of the installation groove.

8. The A-pillar lower trim injection mold according to claim 1, characterized in that: The rear mold assembly also includes an ejector cylinder and a top plate. The ejector cylinder is fixedly mounted on the rear mold plate, and the piston rod end of the ejector cylinder is fixedly connected to the top plate. The first inclined ejector block and the second inclined ejector block are both fixedly mounted on the top plate.

9. The A-pillar lower trim injection mold according to claim 8, characterized in that: A first straight top block and a second straight top block are fixedly mounted on the top plate.

10. The A-pillar lower trim injection mold according to claim 1, characterized in that: The pulling block has an inclined surface and a T-shaped block located on the inclined surface, and the inclined pulling block has a T-shaped groove that is slidably matched with the T-shaped block.

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