Combined type automobile door panel mold convenient to assemble and disassemble
By introducing positioning holes, positioning pins, and strong springs into the automotive door panel mold, as well as the movable connection design of the connecting parts, the problems of complex mold assembly, misalignment, and warping were solved, achieving efficient and stable mold operation and a simple disassembly process, thereby improving production efficiency and molding quality.
Patent Information
- Application Number
- CN202520521929.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing automotive door panel molds suffer from problems such as complexity, time consumption, easy misalignment, easy warping, affecting molding quality, and increasing costs during assembly and disassembly.
A modular automotive door panel mold that is easy to assemble and disassemble is designed. It uses positioning holes, positioning pins and strong springs, and the connecting parts one and two are movable. It is equipped with a release frame to achieve precise mold closing and stable connection, preventing misalignment and warping.
It achieves efficient and precise mold closing, avoids mold cavity misalignment and leakage, improves mold life and disassembly efficiency, and reduces production costs and defect rate.
Smart Images

Figure CN223961666U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of molds, and more specifically, it relates to a modular automobile door panel mold that is easy to assemble and disassemble. Background Technology
[0002] As a crucial and indispensable part of automobile manufacturing, the car door panel plays a key role in the overall structure of the car. It is not just an ordinary component, but also an important barrier that provides reliable safety protection for drivers. Due to the irregular shape of the car door panel, injection molding, an effective production method, is mostly used in the production process to accurately shape its unique form.
[0003] However, existing automotive door panel injection molds on the market have revealed numerous problems in actual use. First, the assembly process of the upper and lower molds is extremely complex, involving many delicate operational steps. This not only consumes a lot of time and manpower but also requires a high level of technical proficiency from the operators. More problematic is the high risk of misalignment between the upper and lower molds during mold closing. Once misalignment occurs, the direct consequence is deformation of the mold cavity, which severely affects the molding quality of the automotive door panel and leads to a significant increase in the defect rate. Second, in the injection molding process, if the fixing relationship between the upper and lower molds is not stable and reliable enough, the upper mold can easily warp on one side under injection pressure. Once this happens, it will cause leakage in the mold cavity, wasting a lot of injection molding material, increasing production costs, and further interfering with the stability of the entire production process. In addition, after the upper and lower molds are assembled and put into use, the subsequent disassembly process also faces cumbersome difficulties, which undoubtedly adds considerable obstacles to the maintenance, upkeep, and replacement of the molds. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a modular automotive door panel mold that is easy to assemble and disassemble, in order to solve the problem that misalignment or warping may occur during molding after the upper and lower molds of the existing automotive door panel molds are closed, resulting in deformation of the internal mold cavity.
[0005] This utility model provides a modular automotive door panel mold that is easy to assemble and disassemble, achieved through the following specific technical means:
[0006] A modular automotive door panel mold that is easy to assemble and disassemble mainly consists of an upper mold, a lower mold, and a release frame. The upper mold has an injection port at its top and handles on its left and right sides. The upper mold engages with the upper mold, and the two together form a mold cavity that communicates with the injection port. The bottom of the lower mold is supported by four support columns. The upper mold has two sets of connecting parts (I) on its front and rear sides, and the lower mold also has two sets of connecting parts (II) on its front and rear sides. Connecting parts I and II form a movable connection. Each connecting part I includes a pressure... The system includes a plate and two limiting guide plates, with a vertical slide rail formed between the two limiting guide plates. A long, strip-shaped sliding plate is slidably connected in this slide rail, and a triangular insert block is provided at the bottom of the sliding plate. The second connecting component includes a rotating support plate and two sets of buckles. The insert block is fastened between the two sets of buckles to form a movable connection. A spur gear is fixedly connected to the lower end of each of the two sets of buckles. The two spur gears mesh with each other, and a rotating shaft is fixedly inserted through the center of the spur gears. One end of the rotating shaft is inserted into the lower mold, and the other end passes through the rotating support plate to form a rotating connection. The rotating support plate is welded and fixed to the lower mold.
[0007] Furthermore, the lower end face of the upper mold has positioning holes on both sides of the mold cavity; the upper end face of the lower mold has positioning pins on both sides of the mold cavity; the positioning pins are inserted into the positioning holes, and the diameter of the positioning pins is smaller than the diameter of the positioning holes; a strong spring is sleeved on the positioning pins, and the strong springs are in a compressed state at this time.
[0008] Furthermore, a pressure rod 1 is provided below one of the spur gears of the connecting member 2, and a pressure rod 2 is provided below the other spur gear; the pressure rod 1 and the pressure rod 2 are parallel to each other, and each of them has a sleeve on its opposite side, with a spring 2 fitted on the two sleeves, and the spring 2 is in a compressed state.
[0009] Furthermore, the upper end of the sliding plate is provided with a horizontal pressure plate, the lower end of the pressure plate is provided with a sleeve, and a sleeve rod passes through the sleeve; the upper end of the sleeve rod slides through the pressure plate, and its lower end is fixed to the pressure plate, the pressure plate is welded to one end of the limiting guide plate; a spring is sleeved on the sleeve rod, and the spring is in a compressed state.
[0010] Furthermore, the lower end of the pressure rod 2 is provided with a rotating support rod, and the pressure rods 2 of the four sets of connecting parts 2 are all rotatably connected to the release frame through the rotating support rod. The release frame is rectangular.
[0011] Furthermore, a limiting plate is provided on the front and rear sides of the release frame, and a limiting rod is provided below the lower mold.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model achieves efficient and precise mold closing operation by setting positioning holes, positioning pins and strong springs. During mold closing, the positioning holes and positioning pins cooperate to guide the upper mold and lower mold to accurately align, effectively avoiding the occurrence of mold cavity misalignment. At the same time, the strong spring plays a buffering role, reducing the impact force at the moment of contact between the upper mold and the lower mold, preventing the contact surface from deforming due to collision, and extending the service life of the mold.
[0014] 2. This utility model innovatively sets up connecting part one and connecting part two, which greatly improves the stability of the mold connection. After the mold is closed, the insert block of connecting part one is cleverly snapped into the two sets of buckles of connecting part two. With the help of the compression of spring two, the two sets of buckles are automatically tightened to form a stable and flexible movable connection. This design firmly fixes the two sides of the upper mold to the lower mold, effectively preventing the upper mold from tilting up on one side, eliminating the risk of leakage in the mold cavity, and ensuring the sealing and reliability of the mold during operation.
[0015] 3. This utility model is also equipped with a unique release frame, which further optimizes the mold operation process. When it is necessary to separate the upper mold and the lower mold, simply pull the release frame, and the two sets of buckles of the connecting part two will open. The embedded block will automatically pop up under the action of the spring one, easily releasing the connection between the connecting part one and the connecting part two. The whole operation process is simple and quick, which greatly improves the mold disassembly efficiency and provides convenience for mold maintenance and replacement. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of the upper and lower molds of this utility model.
[0018] Figure 3 This is a utility model Figure 2 A magnified view of a portion of point A in the middle.
[0019] Figure 4 This is a schematic diagram showing the connection relationship between connector one and connector two of this utility model.
[0020] Figure 5 This is a structural schematic diagram of the connector of this utility model.
[0021] Figure 6 This is a structural schematic diagram of the second connecting component of this utility model.
[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0023] 10. Upper mold; 11. Injection port; 12. Handle; 13. Positioning hole;
[0024] 20. Lower mold; 21. Positioning pin;
[0025] 30. Support column;
[0026] 40. Connecting component 1; 41. Limiting guide plate; 42. Sliding plate; 43. Embedded block; 44. Pressure plate; 45. Sleeve; 46. Sleeve rod; 47. Pressure plate; 48. Spring 1;
[0027] 50. Connecting component two; 51. Buckle; 52. Circular gear; 53. Rotating shaft; 54. Rotating support plate; 55. Pressure rod one; 56. Pressure rod two; 57. Sleeve; 58. Spring two; 59. Rotating support rod;
[0028] 60. Remove the frame; 61. Limit plate;
[0029] 70. Limit rod;
[0030] 80. Powerful spring. Detailed Implementation
[0031] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0032] Example:
[0033] As attached Figure 1 To be continued Figure 6 As shown:
[0034] This utility model provides a modular automotive door panel mold that is easy to assemble and disassemble, mainly composed of an upper mold 10, a lower mold 20, and a release frame 60. The upper mold 10 has an injection port 11 at its top and handles 12 on its left and right sides. The upper mold 10 engages with the lower mold 20, and the two together form a mold cavity, which is connected to the injection port 11. The bottom of the lower mold 20 is supported by four support columns 30. The upper mold 10 has two sets of connecting parts 40 on each of its front and rear sides, and the lower mold 20 also has two sets of connecting parts 50 on each of its front and rear sides. Connecting parts 40 and connecting parts 50 are movably connected. Connecting part 40 includes a pressure plate. 47 and two limiting guide plates 41, forming a vertical slide between the two limiting guide plates 41, with a long strip-shaped sliding plate 42 slidably connected in the slide, and a triangular embedding block 43 at the bottom of the sliding plate 42; the connecting part 2 50 includes a rotating support plate 54 and two sets of buckles 51, with the embedding block 43 snapping into the two sets of buckles 51 to form a movable connection; each of the two sets of buckles 51 is fixedly connected to a spur gear 52 at its lower end, the two spur gears 52 mesh with each other, and a rotating shaft 53 is fixedly inserted through the center of the spur gear 52; one end of the rotating shaft 53 is inserted into the lower mold 20, and the other end passes through the rotating support plate 54 to form a rotating connection, and the rotating support plate 54 is welded and fixed to the lower mold 20.
[0035] Among them, such as Figure 2 As shown, the lower end face of the upper mold 10 has positioning holes 13 on both sides of the mold cavity; the upper end face of the lower mold 20 has positioning posts 21 on both sides of the mold cavity; the positioning posts 21 are inserted into the positioning holes 13, and the diameter of the positioning posts 21 is smaller than the diameter of the positioning holes 13; as shown... Figure 3 As shown, a strong spring 80 is fitted on the positioning post 21, and the strong spring 80 is in a compressed state at this time; the positioning hole 13 and the positioning post 21 assist the upper mold 10 and the lower mold 20 in closing the mold, so as to avoid misalignment of the mold cavity; during the mold closing process, the strong spring 80 plays a certain buffering role to prevent the contact surface of the upper mold 10 and the lower mold 20 from being deformed due to collision when they close the mold.
[0036] Among them, such as Figure 6 As shown, a pressure rod 55 is provided below one spur gear 52 of the connecting part 2 50, and a pressure rod 56 is provided below the other spur gear 52; the pressure rod 55 and the pressure rod 56 are parallel to each other, and each of them has a sleeve 57 on the opposite side. A spring 58 is fitted on the two sleeves 57, and the spring 58 is in a compressed state; through the squeezing action of the spring 58, the two sets of buckles 51 are given a tendency to close and tighten, and after tightening, the embedded block 43 is prevented from being pulled out upward.
[0037] Among them, such as Figure 5As shown, the upper end of the sliding plate 42 is provided with a horizontal pressure plate 44, and the lower end of the pressure plate 44 is provided with a sleeve 45, through which a sleeve rod 46 passes; the upper end of the sleeve rod 46 slides through the pressure plate 44, and its lower end is fixed to the pressure plate 47, which is welded to one end of the limiting guide plate 41; a spring 48 is sleeved on the sleeve rod 46, and the spring 48 is in a compressed state; through the squeezing action of the spring 48, the embedded block 43 is given an upward tendency to move.
[0038] Among them, such as Figure 6 As shown, the lower end of pressure rod 56 is provided with a rotating support rod 59, as... Figure 1 As shown, the pressure rods 56 of the four sets of connecting parts 50 are all rotatably connected to the release frame 60 through the rotating support rod 59. The release frame 60 is rectangular. By pulling the release frame 60, the pressure rods 56 can be rotated around the rotating shaft 53 by a certain angle.
[0039] Among them, such as Figure 1 As shown, a limiting plate 61 is provided on the front and rear sides of the release frame 60, and a limiting rod 70 is provided below the lower mold 20. When the release frame 60 is pulled, the limiting plate 61 gradually moves towards the limiting rod 70 until the two contact each other, and the movement of the release frame 60 is limited by the limiting rod 70.
[0040] The specific usage and function of this embodiment are as follows:
[0041] In this invention, the upper mold 10 is moved above the lower mold 20 by lifting the handle 12 for mold closing. During the mold closing process, positioning holes 13 and positioning pins 21 assist in positioning to prevent mold cavity misalignment. Then, by pressing the pressure plate 44 of the first connector 40, the embedded block 43 is pressed downward between the two sets of latches 51 of the second connector 50. Through the squeezing action of the second spring 58, the two sets of latches 51 are given a tendency to close and tighten, preventing the embedded block 43 from being pulled upward. The upper mold 10 presses on the lower mold 20 and is secured on the front and rear sides by the first connector 40 and the second connector 50. To prevent one side of the upper mold 10 from warping and causing leakage during injection molding, the spring 48 provides a squeezing action to give the insert block 43 an upward tendency. Before demolding, the frame 60 is pulled to one side to release it, causing the pressure rods 56 of all connecting parts 50 to rotate around the shaft 53 at a certain angle. The two sets of spur gears 52 rotate in opposite directions, and the two sets of latches 51 separate and open. Under the action of the spring 48, the insert block 43 is automatically pulled upward from between the latches 51, releasing the connection between connecting part 40 and connecting part 50, thereby separating the upper mold 10 from the lower mold 20.
[0042] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.
Claims
1. A modular automobile door panel mold that is easy to assemble and disassemble, comprising an upper die (10), a lower die (20), and a release frame (60); characterized in that: The upper die (10) is provided with an injection port (11) on the upper side, and handles (12) are arranged on the left and right sides; the upper die (10) is clamped on the upper side of the lower die (20), and the interiors of the two form a mold cavity in common, and the mold cavity is communicated with the injection port (11); the bottom of the lower die (20) is supported by four supporting columns (30); characterized in that: two groups of connecting pieces one (40) are arranged on the front and back sides of the upper die (10) respectively, and two groups of connecting pieces two (50) are arranged on the front and back sides of the lower die (20) respectively, and the connecting pieces one (40) and the connecting pieces two (50) are movably connected; the connecting pieces one (40) comprise a pressure plate (47) and two limiting guide plates (41), a vertical slide is formed between the two limiting guide plates (41), a long strip-shaped sliding plate (42) is slidably connected in the slide, and a triangular embedded block (43) is arranged at the bottom of the sliding plate (42); the connecting pieces two (50) comprise a rotating support plate (54) and two groups of buckles (51), the embedded block (43) is buckled between the two groups of buckles (51) to form a movable connection; the lower end of each of the two groups of buckles (51) is fixedly connected with a circular gear (52), the two circular gears (52) are meshed with each other, and a rotating shaft rod (53) is fixedly inserted in the center of the circular gear (52); one end of the rotating shaft rod (53) is inserted into the lower die (20), the other end penetrates through the rotating support plate (54) and is rotatably connected, and the rotating support plate (54) is welded and fixed on the lower die (20).
2. A modular automobile door panel mold that is easy to assemble and disassemble as set forth in claim 1, characterized in that: A positioning hole (13) is arranged on the lower end surface of the upper die (10) on both sides of the mold cavity; a positioning column (21) is arranged on the upper end surface of the lower die (20) on both sides of the mold cavity; the positioning column (21) is clamped into the positioning hole (13), and the diameter of the positioning column (21) is smaller than that of the positioning hole (13); a strong spring (80) is sleeved on the positioning column (21), and the strong spring (80) is in a compressed state at this time.
3. A modular automobile door panel mold that is easy to assemble and disassemble as recited in claim 1, wherein: One of the circular gears (52) of the connecting pieces two (50) is provided below with a pressure rod one (55), and the other circular gear (52) is provided below with a pressure rod two (56); the pressure rod one (55) and the pressure rod two (56) are parallel to each other, and each of the opposite sides of the two is provided with a sleeve head (57), two sleeve heads (57) are sleeved with a spring two (58), and the spring two (58) is in a compressed state.
4. A modular automotive door panel mold that is easy to assemble and disassemble as recited in claim 1, wherein: The upper end of the sliding plate (42) is provided with a horizontal pressure plate (44), the lower end of the pressure plate (44) is provided with a sleeve (45), the sleeve (45) penetrates a sleeve rod (46); the upper end of the sleeve rod (46) is slidably inserted into the pressure plate (44), the lower end of the sleeve rod (46) is fixed on the pressure plate (47), and the pressure plate (47) is welded on one end of the limiting guide plate (41); the sleeve rod (46) is sleeved with a spring one (48), and the spring one (48) is in a compressed state.
5. A modular door panel mold that is easy to assemble and disassemble as recited in claim 3, wherein: The lower end of the pressure rod two (56) is provided with a rotating support rod (59), and the pressure rod two (56) of the four groups of connecting pieces two (50) is rotatably connected to a release frame (60) through the rotating support rod (59), and the release frame (60) is in a rectangular shape.
6. A modular automotive door panel mold that is easy to assemble and disassemble as recited in claim 1, wherein: The release frame (60) is provided with a limiting plate (61) on each of the front and rear sides above the release frame (60), and the lower die (20) is provided with a limiting rod (70) below the lower die (20).