Demolding mechanism of automobile door panel injection mold

Abstract

The utility model provides an automobile door panel injection mold demoulding mechanism which comprises a static mold base and a movable mold base matched with the static mold base, the static mold base comprises a static mold plate, a fixing plate is correspondingly installed on the back of the static mold plate, a top plate is correspondingly installed between the static mold plate and the fixing plate in a sliding mode, and the movable mold base is matched with the static mold base. An ejection piece is arranged at the corresponding position in the static mold plate in a sliding manner and is correspondingly connected with the ejection plate; first connecting rods are correspondingly and rotationally installed on the two sides of the top plate, second connecting rods are correspondingly and rotationally installed on the two sides of the movable mold base, telescopic rods are rotationally installed between the first connecting rods on the two sides of the top plate and the second connecting rods on the two sides of the movable mold base respectively, and the lengths of the telescopic rods are adjustable. According to the utility model, demoulding power self-supply and process integration are realized, a high-speed automatic production line can be better adapted, the structure is simpler, the cost is reduced, the overall design is simple and ingenious, the use is flexible and convenient, and the practicability is strong.

Description

Technical Field

[0001] This utility model mainly relates to the field of automotive door panel injection molding technology, specifically to a demolding mechanism for automotive door panel injection molds. Background Technology

[0002] As an important component of automotive interiors, car door panels need to be both functional and aesthetically pleasing. They are mostly made of engineering plastics and mass-produced using injection molding processes to achieve complex structures. In the injection molding process, molten plastic is injected into a mold cavity under high pressure, and after cooling and solidification, it forms the door panel product.

[0003] In the demolding process of automotive door panel injection molds, traditional techniques typically rely on independent drive sources (such as pneumatic devices, hydraulic cylinders, or electric push rods) to drive ejector pins and other demolding components to move and extend, thereby achieving demolding. However, this design results in relatively high structural complexity and cost, requiring additional pneumatic pipelines, hydraulic stations, or motors, leading to a large overall mold size and significantly increased maintenance costs. Furthermore, the demolding action and mold opening and closing process need to be controlled in steps, requiring mold separation before initiating pneumatic ejection, resulting in process fragmentation and making it difficult to meet the continuous production requirements of high-speed injection molding machines. Therefore, it is necessary to propose an improvement measure to solve the above-mentioned technical problems.

[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] This utility model provides a demolding mechanism for automotive door panel injection molds to solve the technical problems existing in the background art.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: a demolding mechanism for an automotive door panel injection mold, comprising a stationary mold base and a moving mold base cooperating with the stationary mold base. The stationary mold base includes a stationary template, a fixed plate correspondingly installed on the back of the stationary template, a top plate correspondingly slidably installed between the stationary template and the fixed plate, and an ejector slidably provided at a corresponding position within the stationary template, the ejector being correspondingly connected to the top plate. First connecting rods are rotatably installed on both sides of the top plate, and second connecting rods are rotatably installed on both sides of the moving mold base. Telescopic rods are rotatably installed between the first connecting rods on both sides of the top plate and the second connecting rods on both sides of the moving mold base, the length of the telescopic rods being adjustable. During operation, the moving mold base moves, driving the top plate to move, causing the ejector inside the stationary template to be ejected.

[0009] Furthermore, the telescopic rod includes a first rod and a second rod. One end of the first rod is rotatably connected to the end of the second connecting rod, and a corresponding slot is provided in the other end of the first rod. One end of the second rod is slidably installed in the slot of the first rod, and the other end of the second rod is rotatably connected to the end of the first connecting rod. The second rod and the first rod are limited and fixed by a limiting member.

[0010] Furthermore, the limiting component includes a wing bolt. The first rod has multiple through-holes spaced at equal intervals on the slot side. The second rod has a threaded hole on the side close to the first rod. The wing bolt passes through the corresponding positioning hole on the first rod and is threaded into the threaded hole of the first rod. Tightening the wing bolt can achieve the limiting and fixing of the second rod and the first rod.

[0011] Furthermore, connecting plates are installed and fixed on the upper and lower sides of the back of the static template, and the upper and lower sides of the fixing plate are connected and fixed to the connecting plates respectively; the top plate is located between the upper and lower connecting plates.

[0012] Furthermore, the top plate is provided with limiting slide bars around its perimeter, and the limiting slide bars slide through the stationary template.

[0013] Furthermore, the ejector includes ejector pins and ejector blocks. Ejector blocks and multiple ejector pins are slidably provided at corresponding positions within the stationary template. The distribution of ejector blocks and ejector pins is adapted to the automotive door panel. One end of each ejector block and ejector pin is connected and fixed to the top plate.

[0014] Furthermore, the static template has guide rods on its front perimeter, and the moving template base has guide holes on its perimeter that are inserted into and cooperate with the guide rods.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] This utility model features a reasonable design. By setting up a linkage mechanism, the demolding action is linked with the mold opening and closing process. During mold opening, the movement of the moving mold drives the movement of the top plate to achieve demolding, thus realizing self-sufficiency in demolding power and integration of the process. It can be better adapted to high-speed automated production lines. Its demolding process does not require additional pneumatic, hydraulic, or electric drive sources, making the structure more streamlined. It eliminates the design of air circuits, oil circuits, and independent control modules, reducing costs. Furthermore, the length of the telescopic rod in the linkage mechanism is adjustable, so that the length of the telescopic rod can be adjusted according to the degree of mold opening and closing during actual production to meet the usage requirements, making it more flexible and convenient to use. Its overall design is simple and ingenious, and highly practical.

[0018] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the demolding mechanism of this utility model;

[0020] Figure 2 This is a schematic diagram of the static mold base of this utility model;

[0021] Figure 3 This is a schematic diagram of the telescopic rod of this utility model.

[0022] Figure label:

[0023] 1. Static template; 2. Fixing plate; 3. Connecting plate; 4. Top plate; 5. Limiting slide bar; 6. Telescopic rod; 601. First rod; 6011. Positioning hole; 602. Second rod; 603. Wing bolt; 7. First connecting rod; 8. Second connecting rod; 9. Guide rod; 10. Moving mold base; 11. Ejector pin; 12. Ejector block. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0028] See attached document Figure 1-3 This embodiment of an injection mold demolding mechanism for an automotive door panel includes a stationary mold base and a moving mold base 10 that cooperates with the stationary mold base. The stationary mold base includes a stationary template 1, with a fixing plate 2 mounted on its back. A top plate 4 is slidably mounted between the stationary template 1 and the fixing plate 2. An ejector is slidably disposed within the stationary template 1 at a corresponding position, and the ejector is connected to the top plate 4. First connecting rods 7 are rotatably mounted on both sides of the top plate 4, and second connecting rods 8 are rotatably mounted on both sides of the moving mold base 10. Telescopic rods 6 are rotatably mounted between the first connecting rods 7 on both sides of the top plate 4 and the second connecting rods 8 on both sides of the moving mold base 10, and the length of the telescopic rods 6 is adjustable. During operation, the moving mold base 10 moves, causing the top plate 4 to move, thus ejecting the ejector from the stationary template 1.

[0029] Specifically, the telescopic rod 6 includes a first rod 601 and a second rod 602. One end of the first rod 601 is rotatably connected to the end of the second connecting rod 8, and a corresponding slot is provided in the other end of the first rod 601. One end of the second rod 602 is slidably installed in the slot of the first rod 601, and the other end of the second rod 602 is rotatably connected to the end of the first connecting rod 7. The second rod 602 and the first rod 601 are fixed and limited by a limiting member. The limiting member includes a wing bolt 603. The first rod 601 has multiple through positioning holes 6011 equidistantly spaced on the side of the slot. The second rod 602 has a corresponding threaded hole on the side near the first rod 601. The wing bolt 603 passes through the corresponding positioning hole 6011 on the first rod 601 and is threaded into the threaded hole of the first rod 601. Tightening the wing bolt 603 can achieve the limiting and fixed position of the second rod 602 and the first rod 601. In actual production, the length of the telescopic rod 6 can be adjusted according to the opening and closing degree of the mold, so as to better meet its usage needs and make it more flexible and convenient to use.

[0030] The static template 1 has connecting plates 3 fixedly installed on its upper and lower back sides, and the fixing plate 2 is fixedly connected to the connecting plates 3 on its upper and lower sides. The top plate 4 is located between the connecting plates 3 on its upper and lower sides. The top plate 4 has limiting slide rods 5 around its perimeter, which slide through the static template 1. The ejector includes ejector pins 11 and ejector blocks 12. Ejector blocks 12 and multiple ejector pins 11 are slidably arranged in corresponding positions inside the static template 1. The distribution of ejector blocks 12 and ejector pins 11 is adapted to the structure of the automobile door panel. One end of each ejector block 12 and ejector pin 11 is fixedly connected to the top plate 4. The static template 1 has guide rods 9 around its front perimeter, and the moving mold base 10 has guide holes around its perimeter that engage with the guide rods 9. It is worth noting that the specific design structure of the static mold plate 1, fixed plate 2, connecting plate 3, top plate 4, limiting slide bar 5, guide rod 9, ejector pin 11, and ejector block 12 in the static mold base is the same as the corresponding structure of the existing automotive door panel injection mold. The specific design structure of the moving mold base 10 is the same as the moving mold base in the existing automotive door panel injection mold. The moving mold base 10 is also provided with a corresponding pouring gate. Since the above structural designs are all existing technologies and are very common in the field of existing automotive door panel injection molds, and are not the core improvement of this application, they will not be described in detail here.

[0031] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A demolding mechanism for an injection mold of an automobile door panel, comprising a stationary mold base and a moving mold base (10) cooperating with the stationary mold base, characterized in that: The static mold base includes a static template (1), a fixed plate (2) is installed on the back of the static template (1), a top plate (4) is slidably installed between the static template (1) and the fixed plate (2), an ejector is slidably provided in the static template (1) at a corresponding position, and the ejector is connected to the top plate (4); a first connecting rod (7) is rotatably installed on both sides of the top plate (4), a second connecting rod (8) is rotatably installed on both sides of the moving mold base (10), and a telescopic rod (6) is rotatably installed between the first connecting rod (7) on both sides of the top plate (4) and the second connecting rod (8) on both sides of the moving mold base (10), and the length of the telescopic rod (6) is adjustable; during operation, the moving mold base (10) moves to drive the top plate (4) to move, so that the ejector in the static template (1) is ejected.

2. The demolding mechanism for an automotive door panel injection mold according to claim 1, characterized in that: The telescopic rod (6) includes a first rod (601) and a second rod (602). One end of the first rod (601) is rotatably connected to the end of the second connecting rod (8), and a corresponding slot is provided in the other end of the first rod (601). One end of the second rod (602) is slidably installed in the slot of the first rod (601), and the other end of the second rod (602) is rotatably connected to the end of the first connecting rod (7). The second rod (602) and the first rod (601) are limited and fixed by a limiting member.

3. The demolding mechanism for an automotive door panel injection mold according to claim 2, characterized in that: The limiting component includes a wing bolt (603). The first rod (601) has multiple through positioning holes (6011) spaced at equal intervals on the slot side. The second rod (602) has a threaded hole on the side close to the first rod (601). The wing bolt (603) passes through the corresponding positioning hole (6011) on the first rod (601) and is threaded into the threaded hole of the first rod (601). Tightening the wing bolt (603) can limit and fix the second rod (602) and the first rod (601).

4. The demolding mechanism for an automotive door panel injection mold according to claim 1, characterized in that: The static template (1) has connecting plates (3) installed and fixed on the upper and lower sides of its back, and the fixing plate (2) is connected and fixed to the connecting plate (3) on the upper and lower sides; the top plate (4) is located between the connecting plates (3) on the upper and lower sides.

5. The demolding mechanism for an automotive door panel injection mold according to claim 1, characterized in that: The top plate (4) is provided with limiting slide bars (5) around its perimeter, and the limiting slide bars (5) slide through the stationary template (1).

6. The demolding mechanism for an automotive door panel injection mold according to claim 1, characterized in that: The ejector includes ejector pins (11) and ejector blocks (12). Ejector blocks (12) and multiple ejector pins (11) are slidably provided in the corresponding positions within the static template (1). The distribution of ejector blocks (12) and ejector pins (11) is adapted to the car door panel. One end of each ejector block (12) and ejector pin (11) is connected and fixed to the top plate (4).

7. The demolding mechanism for an automotive door panel injection mold according to claim 1, characterized in that: The static template (1) has guide rods (9) on all four sides of its front, and the moving template base (10) has guide holes on all four sides that are inserted and cooperate with the guide rods (9).

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