Novel UV spraying tool for lampshade of car lamp
By introducing a secondary ejection mechanism into the traditional UV spraying fixture, and combining the lever principle and the synergistic effect of the limiting plate, the problem of limited ejection height is solved, the ejection distance is significantly improved, and the versatility and processing efficiency of the production line are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
Existing production lines struggle to meet diverse production needs when dealing with products requiring high ejection distances. Furthermore, the traditional ejection height is limited, resulting in reduced versatility and high modification costs for the production line.
A secondary ejection mechanism is added to the traditional primary ejection fixture. By utilizing the lever principle and the synergistic effect of the limit plate, the secondary ejection of the top plate is achieved, significantly increasing the ejection distance.
The design of the secondary ejection mechanism improves the versatility of the production line, enabling it to flexibly adapt to the processing needs of products of different specifications, reducing modification costs, and breaking through the bottleneck of traditional ejection height.
Smart Images
Figure CN224221634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of UV spraying tooling technology, specifically a novel UV spraying tooling for automotive lamp covers. Background Technology
[0002] In the specialized field of surface hardening treatment for automotive lamp covers, the current mainstream production method is to use UV spraying fixtures to automate the process. The through-type lamp cover spraying fixture of utility model CN222586976U operates by using the driving force of the line ejector cylinder to move the fixture's horizontal plate, thereby allowing the ejector block to smoothly carry out the product, ensuring that the subsequent robotic arm can accurately retrieve the product. The UV-curing spraying masking fixture of utility model CN220425660U utilizes the ejector action of a push rod to push the ejector mechanism out, also to ensure that the robotic arm can smoothly grasp the product.
[0003] Current technologies commonly use line cylinders or ejector rods to eject products; however, this method has significant drawbacks. Since the ejection height is directly limited by the length of the ejector rod and the stroke range of the cylinder, it becomes difficult to meet the actual needs of products requiring high ejection distances. This undoubtedly greatly limits the versatility of the production line and makes it unable to flexibly adapt to diverse production tasks. Therefore, how to modify existing production lines to meet the requirements for high ejection distances is a technical problem that needs to be solved. Utility Model Content
[0004] The problem to be solved is to modify the existing production line to meet the requirements of higher ejection distance and improve the versatility of the production line.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel UV spraying fixture for automotive lamp covers includes a base plate and a top plate 1. At least two equal-height blocks are spaced apart between the base plate and the top plate 1. A push rod passes through the equal-height blocks and is fixedly connected to the top plate 1. A secondary ejection mechanism is mirror-symmetrically arranged at both ends of the top plate 1. The secondary ejection mechanism includes: a guide post vertically fixed to the top plate 1, a top plate 2 slidably sleeved on the guide post, a limiting plate fixed to the end of the base plate, and a lever unit rotatably connected to the top plate 1. The top plate 2 can move longitudinally along the guide post. The limiting plate has a transverse portion extending towards the top plate 2. One end of the lever unit is located below the transverse portion of the limiting plate, and the other end is connected to the top plate 2. A push block for ejecting the product is fixedly arranged on the top plate 2. When the top plate 1 is driven by the push rod to rise to a preset position, the lever unit abuts against and rotates the transverse portion of the limiting plate, driving the top plate 2 to be lifted a second time along the guide post.
[0006] Preferably, the lever unit includes a lever arm, a lever shaft, and a fixing block. The lever arm includes an active arm and a driven arm. The active arm is located below the lateral portion of the limiting plate, the driven arm is connected to the second top plate, and the lever shaft passes through the lever arm and is installed on the first top plate through the fixing block.
[0007] Preferably, the angle between the driving arm and the driven arm is α, where α satisfies 100°≤α≤160°.
[0008] Preferably, the limiting plate has an inverted L-shaped structure, with its vertical part fixed to the base plate and its horizontal part extending to the top of one end of the lever unit.
[0009] Preferably, the top plate 2 is connected to the top block through the support plate 2 and the support plate 3.
[0010] Preferably, the secondary ejection mechanism has four guide columns, which are evenly distributed at one end of the top plate and penetrate through the four corners of the top plate.
[0011] Compared with existing technologies, this utility model provides a novel UV coating fixture for automotive lamp covers, which has the following beneficial effects: This utility model innovatively adds a secondary ejection mechanism, a key design that significantly increases the ejection height of the product. Through the ingenious operation of this secondary ejection mechanism, combined with the lever principle and the synergistic effect of the limiting plate, secondary lifting is achieved on the basis of the traditional single ejection fixture, significantly increasing the ejection distance. This effectively avoids the cumbersome and costly modification of the production line, truly improving the versatility of the production line and enabling the entire production process to more efficiently and smoothly meet the processing needs of products of different specifications, especially adapting to requirements with high ejection distance; the secondary ejection mechanism compensates for the cylinder stroke limitation, breaking through the traditional ejection height bottleneck. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the present invention before use;
[0014] Figure 3 This is a schematic diagram of the present invention after use;
[0015] Figure 4 This is an isometric view of the lever unit structure of this utility model;
[0016] Figure 5 This is a front view of the lever unit of this utility model;
[0017] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Top rod; 3. Equal height block; 4. Support plate one; 5. Support block; 6. Top plate one; 7. Top block; 100. Secondary ejection mechanism; 8. Guide column; 9. Top plate two; 10. Lever unit; 101. Lever arm; 1011. Driven arm; 1012. Driving arm; 102. Lever pivot; 103. Fixed block; 104. Connecting shaft one; 105. Bushing one; 106. Connecting shaft two; 107. Bushing two; 11. Limiting plate; 12. Support plate two; 13. Support plate three. Detailed Implementation
[0018] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:
[0019] As described in the background section, in the complex process of UV spraying, different products often have varying requirements for ejection height. This invention aims to overcome this challenge by addressing the bottleneck of limited ejection height in traditional ejection fixtures, while maintaining the original production line structure without large-scale modifications. The goal is to achieve flexible adjustment of the fixture's ejection height to meet diverse production needs.
[0020] A traditional single-ejection fixture includes a base plate 1, two ejector rods 2 slidably mounted at both ends of the base plate 1, and ejector rods 2 sliding through leveling blocks 3 and connecting to a top plate 6. Leveling blocks 3 are fixed to the base plate 1. Two support plates 4 slid through the top plate 6 and are fixedly connected to support blocks 5. The support plates 4 and support blocks 5 support the sliding path of the top plate 6, ensuring the stability of the single ejection action. The top plate 6 slides upward along the two support plates 4 under the push of the ejector rods 2. Both ends of the support blocks 5 are movably equipped with ejector blocks 7, which are connected to the top plate 6 through support plates 2 and 3. Both push rods 2 are connected to the cylinder mechanism in the production line. When the cylinder mechanism extends, the push rod 2 is pushed upward. As the push rod 2 slides upward within the base plate 1 and the equal height block 3, it pushes the top plate 6 upward. As the top plate 6 moves upward relative to the support plate 4, it moves the support plates 12 and 13 at both ends upward together. During this process, the top blocks 7 at both ends move upward. After the top blocks 7 move upward, they generate a lifting height h in the vertical direction with the support block 5. This lifting height provides the operating space for the robotic arm to transfer the material on the top block 7.
[0021] The aforementioned single-stage lifting height cannot meet the needs of more application scenarios, reducing the versatility of the production line. Moreover, the cost of modifying the production line is extremely high. Therefore, in order to meet the requirements of higher ejection distance, this utility model adds a secondary ejection mechanism 100 to the above-mentioned single-stage ejection fixture. The two ends of the top plate 6 are provided with secondary ejection mechanisms 100. The secondary ejection mechanism 100 includes a guide column 8, a second top plate 9, a lever unit 10, and a limiting plate 11. The limiting plate 11 has an inverted L-shaped structure. The vertical part of the limiting plate 11 is connected to the bottom plate 1, and the horizontal part faces the top block 7. The top plate 6 is located between the two limiting plates 11. As shown in the figure, this utility model discloses a novel UV coating fixture for automotive headlight covers, comprising a base plate 1 and a top plate 6. The base plate 1 serves as a basic support structure, fixed to the production line body to ensure the overall stability of the fixture. At least two level blocks 3 are spaced apart between the base plate 1 and the top plate 6. A push rod 2 passes through the level blocks 3 and is fixedly connected to the top plate 6. The push rod 2 is connected to a cylinder mechanism to receive driving force, pushing the top plate 6 to complete one ejection. The level blocks 3 are spaced apart between the base plate 1 and the top plate 6 to maintain a distance, ensuring the vertical movement of the push rod 2. The top plate 6, as the core moving component for one ejection, is driven upward by the push rod 2, driving the top block 7 to complete the first ejection. The top plate 6 is symmetrically mirrored at both ends with a secondary ejection mechanism 100. The secondary ejection mechanism 100 includes: a guide post 8 vertically fixed on the top plate 6, a top plate 9 slidably sleeved on the guide post 8, a limiting plate 11 fixed to the end of the bottom plate 1, and a lever unit 10 rotatably connected to the top plate 6. The guide post 8 is fixed to the top plate 6 and guides the top plate 9 to move stably in the vertical direction. The secondary ejection mechanism 100 has four guide posts 8, which are evenly distributed at the end of the top plate 6 and pass through the four corners of the top plate 9. The top plate 2 9 can move longitudinally along the guide column 8 and is lifted a second time under the drive of the lever unit 10. The limiting plate 11 has a transverse part extending toward the top plate 2 9. One end of the lever unit 10 is located below the transverse part of the limiting plate 11, and the other end is connected to the top plate 2 9. The lever unit 10 converts the blocking force of the limiting plate 11 into the secondary lifting force of the top plate 2 9 through the lever principle. A top block 7 for ejecting the product is fixedly installed on the top plate 2 9. The top block 7 directly contacts and ejects the product and is connected to the top plate 2 9 through the support plate 2 12 and the support plate 3 13. When the top plate 1 6 is driven by the top rod 2 to rise to the preset position, the lever unit 10 abuts against the transverse part of the limiting plate 11 and rotates, driving the top plate 2 9 to be lifted a second time along the guide column 8. The inverted L-shaped structure design of the limiting plate 11 means that its transverse part triggers the rotation of the lever unit 10, and its vertical part is fixed to the base plate 1. The vertical part of the limiting plate 11 is fixed to the base plate 1, and the horizontal part extends to the top of one end of the lever unit 10.
[0022] like Figure 4As shown, the lever unit 10 includes a lever arm 101, a lever shaft 102, and a fixing block 103. The lever arm 101 includes a driving arm 1012 and a driven arm 1011. The driving arm 1012 is located below the transverse portion of the limiting plate 11, and the driven arm 1011 is connected to the top plate 9. The lever shaft 102 passes through the lever arm 101 and is mounted on the top plate 6 through the fixing block 103. The included angle between the driving arm 1012 and the driven arm 1011 is α, where α satisfies 100°≤α≤160°. To make the lever unit 10 structure more stable, two lever arms 101 can be fixed together at intervals. The lever shaft 102 passes through the lever arm 101. The ends of the two lever arms 101 are connected by connecting shaft one 104 and connecting shaft two 106 respectively. Connecting shaft one 104 is fitted with bushing one 105, which is located below the horizontal part of the limiting plate 11. Connecting shaft two 106 is fitted with bushing two 107, which is located below the top plate two 9.
[0023] like Figure 1 As shown, limit plates 11 are mirror-symmetrically arranged on the left and right sides of the base plate 1. Two equal-height blocks 3 are located between the base plate 1 and the top plate 6 and are fixedly set on the base plate 1. Four support plates 4 are also set on the base plate 1, with their other ends passing through the top plate 6 and connecting to the support blocks 5, thus constructing the basic structure. The two top rods 2 at the lower end of the base plate 1 are precisely limited at the upper end by eight guide columns 8. The top blocks 7 on both sides are firmly fixed to the top plate 9 through the support plates 12 and 13 to form an organic whole.
[0024] During operation, the base plate 1 is first securely fixed to the production line body, with support plate 4 supporting support block 5. When the production process starts, the line cylinder mechanism begins to push outwards. The powerful force sequentially drives the push rod 2, top plate 6, guide column 8, lever unit 10, top plate 9, support plate 12, support plate 13, and top block 7 to push upwards in a coordinated manner. After the entire fixture reaches the pre-set push-out position of the line cylinder mechanism, lever unit 10, based on the lever principle, activates the secondary push-out mechanism 100 to continue the push-out movement. The end of lever unit 10 near the limit plate 11 abuts against the lateral part of the limit plate 11, and the cylinder mechanism continues to extend. The rotation of lever unit 10 causes the other end of lever unit 10 to push top plate 9 upwards along guide column 8. The upward movement of top plate 9, along with support plate 12, support plate 13, and top block 7, pushes upwards again to reach the desired position. Figure 3 As shown, this achieves the core function of increasing the ejection distance of the UV spraying tool, laying a solid foundation for meeting the diverse ejection needs of products.
[0025] like Figure 1As shown, considering the differences in structural size and secondary lifting height requirements of different products, the lever unit 10, top plate 9, support plate 12, support plate 13, top block 7, and limiting plate 11 in this utility model all have flexible adjustment characteristics. Their dimensions and quantities can be precisely adjusted according to actual conditions to achieve optimal adaptation to different products, ensuring that the versatility and practicality of the tooling are maximized. The secondary lifting principle is combined with... Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 2 The height h is the height of a single jacking operation. Figure 3 H represents the ejection height of the secondary ejection mechanism 100. Figure 5 ΔH is the difference between the ejection height H and the first ejection height. It can be seen that the additional ejection distance of the secondary ejection mechanism 100 is ΔH, where ΔH = L × cos(α - 90°), L is the length of the driven arm 1011, and α is the angle between the driving arm 1012 and the driven arm 1011, which is also the bending angle of the lever arm 101. The range of α is preferably 100° ≤ α ≤ 160°. The length of the driving arm 1012 is D, which is sufficient to ensure that the outer end of the driving arm 1012 is below the lateral part of the limiting plate 11 before the lever unit 10 rotates.
[0026] The cylinder drives the push rod 2 to push the top plate 6 upward along the support plate 4, which in turn drives the top block 7 to complete the first ejection. When the top plate 6 rises to the preset position, the active arm 1012 of the lever unit 10 contacts the lateral part of the limiting plate 11. The limiting plate blocks the active arm, forcing the lever arm 101 to rotate around the lever shaft 102. The driven arm 1011 of the lever unit 10 converts the rotation into the vertical movement of the top plate 9. The top plate 9 is lifted a second time along the guide column 8, which drives the top block 7 to be raised further, thus achieving the superposition of the total ejection distance.
[0027] Through the innovative design of the secondary ejection mechanism 100, combined with the lever principle and the synergistic effect of the limiting plate 11, a secondary lifting is achieved on the basis of the traditional single ejection tooling, significantly increasing the ejection distance. This mechanism flexibly adapts to different product specifications by adjusting the lever arm angle α = 100°~160°, the lengths of the second support plate 12 and the third support plate 13, and the position of the limiting plate 11, solving the problem of limited ejection height in existing technologies. This utility model requires no modification to the production line, reducing production costs and improving tooling versatility. The secondary ejection mechanism compensates for the cylinder stroke limitation, breaking through the traditional ejection height bottleneck; in particular, the mechanical lever design simplifies the structure, avoiding complex cylinder or production line modifications, and reducing production costs. It is suitable for scenarios requiring high ejection distances in automotive lamp cover UV spraying, possessing significant practical value and market competitiveness.
[0028] The core technical highlight of this utility model lies in the creative introduction of a secondary ejection mechanism into the field of surface treatment tooling. Through the ingenious operation of this mechanism based on the lever principle, it successfully breaks through the predicament of limited ejection height of traditional tooling and achieves a significant increase in ejection distance. This innovative design and application is the key protection point of this utility model.
[0029] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A novel UV coating fixture for automotive lamp covers, comprising a base plate (1) and a top plate (6), wherein at least two level blocks (3) are spaced apart between the base plate (1) and the top plate (6), and a top rod (2) passes through the level blocks (3) and is fixedly connected to the top plate (6); characterized in that: The top plate 1 (6) is symmetrically provided with a secondary ejection mechanism (100) at both ends. The secondary ejection mechanism (100) includes: a guide post (8) vertically fixed on the top plate 1 (6), a top plate 2 (9) slidably sleeved on the guide post (8), a limiting plate (11) fixed to the end of the bottom plate (1), and a lever unit (10) rotatably connected to the top plate 1 (6). The top plate 2 (9) can move longitudinally along the guide post (8), and the limiting plate (11) It has a transverse portion extending toward the top plate 2 (9), one end of the lever unit (10) is located below the transverse portion of the limiting plate (11), and the other end is connected to the top plate 2 (9); a top block (7) for ejecting the product is fixedly provided on the top plate 2 (9); when the top plate 1 (6) is driven to rise to the preset position by the top rod (2), the lever unit (10) abuts against the transverse portion of the limiting plate (11) and rotates, driving the top plate 2 (9) to be lifted twice along the guide column (8).
2. The novel UV coating fixture for automotive lamp covers according to claim 1, characterized in that: The lever unit (10) includes a lever arm (101), a lever shaft (102), and a fixing block (103). The lever arm (101) includes an active arm (1012) and a driven arm (1011). The active arm (1012) is located below the horizontal part of the limiting plate (11), and the driven arm (1011) is connected to the top plate (9). The lever shaft (102) passes through the lever arm (101) and is installed on the top plate (6) through the fixing block (103).
3. The novel UV coating fixture for automotive lamp covers according to claim 2, characterized in that: The angle between the active arm (1012) and the driven arm (1011) is α, and α satisfies 100°≤α≤160°.
4. The novel UV coating fixture for automotive lamp covers according to claim 1, characterized in that: The limiting plate (11) has an inverted L-shaped structure, with its vertical part fixed to the base plate (1) and its horizontal part extending to one end above the lever unit (10).
5. The novel UV coating fixture for automotive lamp covers according to claim 1, characterized in that: Top plate 2 (9) is connected to top block (7) through support plate 2 (12) and support plate 3 (13).
6. The novel UV coating fixture for automotive lamp covers according to claim 1, characterized in that: The secondary ejection mechanism (100) has four guide columns (8), which are evenly distributed at the end of the top plate one (6) and penetrate through the four corners of the top plate two (9).