Injection molding device for a sun visor skeleton
By introducing the linkage principle and spring reset mechanism into the injection molding device for sunshade frames, the problems of insufficient torque and difficulty in demolding caused by the linear motion of the cylinder piston rod were solved, thereby improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI ZETA AUTO PARTS CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-09
AI Technical Summary
In existing sunshade frame injection molding equipment, the cylinder piston rod directly outputs linear motion, lacking a complex transmission mechanism. As a result, the output force is directly determined by the cylinder parameters, without any amplification effect, making demolding difficult and easily causing scratches and tears on the frame surface, thus affecting product quality.
The design adopts the linkage principle, which uses the cylinder to drive the connecting seat and the connecting rod to amplify the torque. The spring reset mechanism simplifies the demolding process and avoids damage to the skeleton surface.
It achieves torque amplification, reduces power source requirements, improves the quality of injection-molded products, avoids scratches and tears on the skeleton surface, and improves production efficiency.
Smart Images
Figure CN224334930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sunshade frame processing technology, and in particular to an injection molding device for a sunshade frame. Background Technology
[0002] The sun visor frame is a crucial component of the automotive sun visor, and its quality directly affects the performance and lifespan of the sun visor. Currently, sun visor frames are typically manufactured using injection molding. During injection molding, the structure and performance of the mold have a vital impact on product quality and production efficiency.
[0003] The existing device directly outputs linear motion from the piston rod of the cylinder, pushing the load to move along the cylinder axis. There is no complex transmission mechanism in between, and the output force is directly determined by the cylinder parameters. There is no amplification effect, and demolding is difficult. It is easy to cause scratches, tears and other defects on the surface of the sun visor frame, which affects product quality. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model embodiment is to provide an injection molding device for a sunshade frame, which can solve the technical problems of the prior art where the piston rod of the cylinder directly outputs linear motion, pushes the load to move along the cylinder axis, has no complex transmission mechanism, the output force is directly determined by the cylinder parameters, has no amplification effect, and is difficult to demold, which easily causes scratches, tears and other defects on the surface of the sunshade frame, affecting product quality.
[0005] This utility model embodiment proposes an injection molding device for a sunshade frame, including a base. Support plates are fixedly installed on both the left and right sides of the top of the base. A cylinder is fixedly installed on the left side of the left support plate. The output end of the cylinder passes through the left support plate and is fixedly connected to a first connecting seat. A first connecting rod is rotatably connected to the top and bottom of the first connecting seat. A support rod is fixedly sleeved on the right side of the first connecting rod. A second connecting seat is fixedly installed on the top and bottom of the right side of the left support plate. A second connecting rod is rotatably connected to the inner cavity of the second connecting seat. A third connecting seat is fixedly installed on the top and bottom of the left side of the right support plate. A third connecting rod is rotatably connected to the inner cavity of the third connecting seat. A movable plate is provided on the top of the base. A support frame is fixedly installed on the left side of the movable plate. A horizontal plate is provided on the left side of the support frame. Push rods are fixedly installed on the top and bottom of the right side of the horizontal plate.
[0006] Furthermore, the right sides of the second connecting rod at the top and bottom are respectively movably sleeved on the outside of the support rod at the top and bottom, and the left sides of the third connecting rod at the top and bottom are respectively movably sleeved on the outside of the support rod at the top and bottom.
[0007] Furthermore, pads are fixedly installed at the top and bottom of the right side of the movable plate, and a left mold base is fixedly installed on the right side of the pads. The right side of the push rod moves through the left mold base. Vertical rods are fixedly installed at the top of the top push rod and the bottom of the bottom push rod. A circular rod is fixedly installed on the right side of the vertical rod, and the right side of the circular rod moves through the left mold base.
[0008] Furthermore, springs are fixedly installed at the top and bottom of the right side of the cross plate, and the right side of the spring is fixedly connected to the left side of the support frame. The spring is sleeved on the outside of the push rod.
[0009] Furthermore, a right mold base is fixedly installed on the left side of the support plate on the right side, and injection holes are opened through the right side of the right mold base and the right side of the support plate on the right side.
[0010] Furthermore, a fixing rod is fixedly installed on one side of the support plate. There are four sets of fixing rods arranged in a rectangular array. The movable plate is movably sleeved on the outside of the fixing rods. Foot pads are fixedly installed at the four corners of the bottom of the base.
[0011] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:
[0012] (1) In this embodiment of the utility model, by starting the cylinder, the cylinder extends and drives the first connecting seat to move to the right. The first connecting seat drives the first connecting rod to move to the right. The first connecting rod, through the cooperation of the support rod, drives the right side of the second connecting rod and the left side of the third connecting rod to move away from each other. At the same time, it will drive the moving plate to move to the right. By utilizing the mechanical gain design of the linkage principle, the input force can be amplified, realizing the driving of large forces with small forces and reducing the power demand of the power source.
[0013] (2) In this embodiment of the utility model, when the moving plate moves to the right and drives the left mold base to fit with the right mold base, it will drive the circular rod to move to the left. The circular rod drives the push rod to move to the left through the vertical rod. The push rod drives the horizontal plate to move to the left and stretches the spring. Then, injection is performed through the injection hole. After the injection is completed, the moving plate is reset. The spring force can reset the push rod, which facilitates quick demolding of the skeleton and avoids defects such as scratches and tears on the skeleton surface, thus improving product quality. Attached Figure Description
[0014] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention. Throughout the drawings, the same reference numerals denote the same components. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.
[0015] Figure 1 This is a three-dimensional structural schematic diagram of an injection molding device for a sunshade frame provided in an embodiment of this utility model.
[0016] Figure 2 This is a cross-sectional structural schematic diagram of an injection molding device for a sunshade frame provided in an embodiment of this utility model.
[0017] Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of part A in the middle.
[0018] Figure 4 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of part B in the middle section.
[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support plate; 3. Cylinder; 4. First connecting seat; 5. First connecting rod; 6. Support rod; 7. Second connecting seat; 8. Second connecting rod; 9. Third connecting seat; 10. Third connecting rod; 11. Moving plate; 12. Pad; 13. Left mold base; 14. Support frame; 15. Horizontal plate; 16. Push rod; 17. Spring; 18. Vertical rod; 19. Circular rod; 20. Right mold base; 21. Injection hole; 22. Foot pad; 23. Fixing rod. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0021] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this utility model.
[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention.
[0023] Reference manual attached Figures 1 to 4The present invention provides a structure for an injection molding device for a sunshade frame, comprising a base 1, support plates 2 fixedly installed on both the left and right sides of the top of the base 1, a cylinder 3 fixedly installed on the left side of the left support plate 2, the output end of the cylinder 3 passing through the left support plate 2 and fixedly connected to a first connecting seat 4, a first connecting rod 5 rotatably connected to the top and bottom of the first connecting seat 4, a support rod 6 fixedly sleeved on the right side of the first connecting rod 5, a second connecting seat 7 fixedly installed on the top and bottom of the right side of the left support plate 2, a second connecting rod 8 rotatably connected to the inner cavity of the second connecting seat 7, a third connecting seat 9 fixedly installed on the top and bottom of the left side of the right support plate 2, a third connecting rod 10 rotatably connected to the inner cavity of the third connecting seat 9, a movable plate 11 provided on the top of the base 1, a support frame 14 fixedly installed on the left side of the movable plate 11, a horizontal plate 15 provided on the left side of the support frame 14, and push rods 16 fixedly installed on the top and bottom of the right side of the horizontal plate 15.
[0024] In this embodiment, the right sides of the second connecting rods 8 at the top and bottom are movably sleeved on the outside of the support rods 6 at the top and bottom, respectively. The left sides of the third connecting rods 10 at the top and bottom are movably sleeved on the outside of the support rods 6 at the top and bottom, respectively. The top and bottom of the right side of the moving plate 11 are both fixedly installed with pads 12. The right side of the pads 12 is fixedly installed with a left mold base 13. The right side of the push rod 16 moves through the left mold base 13. The top of the push rod 16 at the top and the bottom of the push rod 16 at the bottom are both fixedly installed with vertical rods 18. The right side of the vertical rod 18 is fixedly installed with a circular rod 19. The right side of the circular rod 19 moves through the left mold base 13. Through the cooperation of the circular rod 19 and the push rod 16, when the circular rod 19 moves to the left, it is easy to drive the push rod 16 to move to the right.
[0025] In this embodiment, springs 17 are fixedly installed at the top and bottom of the right side of the horizontal plate 15. The right side of the springs 17 is fixedly connected to the left side of the support frame 14. The springs 17 are sleeved on the outside of the push rod 16. A right mold base 20 is fixedly installed on the left side of the right support plate 2. Injection holes 21 are opened through the right side of the right mold base 20 and the right side of the right support plate 2. A fixing rod 23 is fixedly installed on the corresponding side of the support plate 2. There are four sets of fixing rods 23, which are distributed in a rectangular array. The moving plate 11 is movably sleeved on the outside of the fixing rods 23. Foot pads 22 are fixedly installed at the four corners of the bottom of the base 1. The fixing rods 23 can limit the movement of the moving plate 11, thereby improving the stability of the left and right movement of the moving plate 11.
[0026] In this embodiment, during use, the cylinder 3 is activated by an external controller. The cylinder 3 extends and drives the first connecting seat 4 to move to the right. The first connecting seat 4 drives the first connecting rod 5 to move to the right. The first connecting rod 5, through the cooperation of the support rod 6, drives the right side of the second connecting rod 8 and the left side of the third connecting rod 10 to move away from each other. At the same time, it drives the moving plate 11 to move to the right. The moving plate 11, through the pad block 12, drives the left mold base 13 to fit with the right mold base 20. When the left mold base 13 and the right mold base 20 are in contact, it drives the circular rod 19 to move to the left. The circular rod 19, through the vertical rod 18, drives the push rod 16 to move to the left. The push rod 16 drives the horizontal plate 15 to move to the left, while stretching the spring 17. Then, injection molding is performed through the injection hole 21. After injection molding is completed, the moving plate 11 is reset. The spring force of the spring 17 can reset the push rod 16, which facilitates quick demolding of the skeleton.
[0027] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. An injection molding device for a sunshade frame, characterized in that, include: A base (1) is provided, with support plates (2) fixedly installed on both the left and right sides of the top of the base (1). A cylinder (3) is fixedly installed on the left side of the support plate (2) on the left side. The output end of the cylinder (3) passes through the support plate (2) on the left side and is fixedly connected to a first connecting seat (4). A first connecting rod (5) is rotatably connected to the top and bottom of the first connecting seat (4). A support rod (6) is fixedly sleeved on the right side of the first connecting rod (5). A second connecting seat (7) is fixedly installed on the top and bottom of the right side of the support plate (2) on the left side. The inner cavity of the second connecting seat (7) is rotatably connected to the second connecting rod (8). The top and bottom of the left side of the support plate (2) on the right side are fixedly installed with the third connecting seat (9). The inner cavity of the third connecting seat (9) is rotatably connected to the third connecting rod (10). The top of the base (1) is provided with a movable plate (11). The left side of the movable plate (11) is fixedly installed with a support frame (14). The left side of the support frame (14) is provided with a horizontal plate (15). The top and bottom of the right side of the horizontal plate (15) are fixedly installed with push rods (16).
2. The injection molding device for the sunshade frame according to claim 1, characterized in that, The right sides of the second connecting rod (8) at the top and bottom are respectively movably sleeved on the outside of the support rod (6) at the top and bottom, and the left sides of the third connecting rod (10) at the top and bottom are respectively movably sleeved on the outside of the support rod (6) at the top and bottom.
3. The injection molding apparatus for the sunshade frame according to claim 1, characterized in that, A pad (12) is fixedly installed at the top and bottom of the right side of the movable plate (11). A left mold base (13) is fixedly installed on the right side of the pad (12). The right side of the push rod (16) moves through the left mold base (13). A vertical rod (18) is fixedly installed at the top of the push rod (16) and at the bottom of the push rod (16). A circular rod (19) is fixedly installed on the right side of the vertical rod (18). The right side of the circular rod (19) moves through the left mold base (13).
4. The injection molding apparatus for the sunshade frame according to claim 1, characterized in that, Springs (17) are fixedly installed on the top and bottom of the right side of the horizontal plate (15). The right side of the spring (17) is fixedly connected to the left side of the support frame (14). The spring (17) is sleeved on the outside of the push rod (16).
5. The injection molding apparatus for the sunshade frame according to claim 1, characterized in that, A right mold base (20) is fixedly installed on the left side of the support plate (2) on the right side. Injection holes (21) are opened through the right side of the right mold base (20) and the right side of the support plate (2) on the right side.
6. The injection molding apparatus for the sunshade frame according to claim 1, characterized in that, A fixing rod (23) is fixedly installed on one side of the support plate (2). There are four sets of fixing rods (23) arranged in a rectangular array. The movable plate (11) is movably sleeved on the outside of the fixing rod (23). Foot pads (22) are fixedly installed at the four corners of the bottom of the base (1).