Lens dyeing machine

By using multiple dyeing pools arranged side by side and a closed-loop dyeing solution circulation system, the problem of uneven lens dyeing is solved, achieving a highly efficient and uniform lens dyeing effect, which is suitable for industrial production.

CN224221729UActive Publication Date: 2026-05-12SHANGHAI WEIXING OPTICAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI WEIXING OPTICAL
Filing Date
2025-07-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing lens dyeing methods rely on manual operation, resulting in uneven dyeing and the inability to circulate dye tanks, which affects production efficiency and quality.

Method used

Multiple staining tanks are arranged side by side, combined with a reflux plate and a circulating filter structure. The design includes inlet and reflux hole groups to form a closed-loop staining solution circulation system. It is also equipped with an independent circulating pump and filter to achieve automated lens handling and temperature control.

Benefits of technology

It improves dyeing efficiency and uniformity, reduces local concentration differences, ensures the consistency and reliability of dyeing quality, and is suitable for industrial mass production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a lens dyeing machine. The technical problem that the local concentration difference is large due to the fact that a lens is manually lifted to enter a dye tank and the dye tank cannot achieve circulation in the prior art is solved. Comprising a dyeing box, at least one dyeing pool is arranged in the dyeing box, a backflow plate capable of dividing the dyeing pool into a backflow cavity and a dyeing cavity is arranged on one side in the dyeing pool, a liquid inlet hole group is formed in the lower end of the dyeing pool, a backflow hole group is formed in the upper side of the backflow plate, and the backflow hole group and the liquid inlet hole group are connected through a dyeing liquid circulating filtering structure. A lens clamping structure is arranged at one end of the dyeing box through a lifting assembly. The dyeing tank has the advantages that the multiple dyeing tanks are arranged side by side, the batch dyeing function is achieved in the limited dyeing tank body, cavities can be effectively separated through the backflow plate, dyeing liquid circulation is not affected, the flowing path of dyeing liquid in the tanks is more reasonable in cooperation with the design of hole sets for bottom liquid inlet and upper backflow, local retention is avoided, and the dyeing efficiency is improved. And the overall utilization efficiency of the dyeing tank is improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of lens dyeing equipment, and specifically relates to a lens dyeing machine. Background Technology

[0002] Resin lenses can be dyed into various colors to meet the decorative and light-filtering needs of different groups. After the resin lens is processed to the desired optical power, it is immersed in a dyeing solution. The dye penetrates the lens body, and then hardening and coating processes are carried out to finally obtain the desired lens. In existing technologies, traditional lens dyeing methods mostly rely on manual handling to carry the lens into the dye bath. The dyeing effect depends on the operator's subjective judgment, and the dye bath cannot be circulated, resulting in large local concentration differences and uneven dyeing, which affects production efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a lens staining machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a lens dyeing machine, comprising a dyeing chamber, wherein at least one dyeing pool is provided inside the dyeing chamber, and a reflux plate is provided on one side of the dyeing pool to divide the dyeing pool into a reflux chamber and a dyeing chamber. The lower end of the dyeing pool is provided with an inlet hole group communicating with the dyeing chamber. The upper side of the reflux plate is provided with a reflux hole group communicating with the reflux chamber and the dyeing chamber. The reflux hole group and the inlet hole group are connected by a dyeing liquid circulation filtration structure, and one end of the dyeing chamber is provided with at least one lens clamping structure corresponding to the dyeing chamber of the dyeing pool via a lifting assembly.

[0005] In the aforementioned lens dyeing machine, the dyeing chamber contains several dyeing pools arranged side-by-side adjacent to each other, and each dyeing pool is equipped with a dyeing solution circulation filtration structure. This design of multiple dyeing pools arranged side-by-side effectively enhances the equipment's batch processing capacity, allowing for the simultaneous dyeing of multiple groups of lenses, significantly improving work efficiency. Furthermore, each dyeing pool is equipped with an independent circulation filtration structure, ensuring that the dyeing solution parameters in different pools do not interfere with each other, meeting the needs of simultaneously processing lenses with different dyeing requirements, and enhancing the equipment's practicality and flexibility.

[0006] In the aforementioned lens dyeing machine, the reflux plates in each dyeing tank are all located on the same side of the corresponding dyeing tank, and the width of the reflux chamber is smaller than the width of the dyeing chamber. Standardizing the placement of the reflux plates in each dyeing tank ensures the standardization of the equipment structure, facilitating uniform processing during production and subsequent maintenance. Furthermore, the design of the reflux chamber width being smaller than the dyeing chamber width rationally allocates the dyeing tank space, maximizing the use of space to expand the dyeing area while ensuring the reflux function, thus improving the utilization rate of the dyeing tank.

[0007] In the aforementioned lens dyeing machine, the reflux plate is vertically positioned, and its height is no higher than the dyeing tank. The reflux plate extends from one end of the dyeing tank to the other. This vertical positioning and height effectively separates the two chambers without affecting the liquid level balance of the dyeing solution, ensuring a stable dyeing process. The design of the reflux plate extending from one end to the other prevents the dyeing solution from stagnating at the edge of the tank, allowing it to circulate smoothly throughout the dyeing tank and improving the uniformity of lens dyeing.

[0008] In the aforementioned lens staining machine, the inlet hole group has at least two inlet holes located at the bottom of the staining chamber of the staining pool, and the reflux hole group has several reflux holes arranged horizontally side by side, with both the inlet holes and reflux holes connected to the staining pool. The inlet hole group, with at least two inlet holes located at the bottom of the staining chamber, allows the staining solution to enter the staining area more evenly. The multiple horizontal reflux holes in the reflux hole group increase the reflux area and accelerate the circulation speed of the staining solution. This porous design allows the staining solution to flow more smoothly and be distributed more evenly within the staining pool, reducing local concentration differences and ensuring improved staining quality.

[0009] In the aforementioned lens dyeing machine, the dyeing solution circulation filtration structure includes several circulation pumps positioned below the dyeing chamber and corresponding to the dyeing pools. These circulation pumps are connected to a filter and are connected to a return chamber via a return pipe. The filter is connected to an inlet port group via an inlet pipe. The circulation pumps provide power for the dyeing solution circulation. Combined with the filter, this forms a closed-loop dyeing solution circulation system. The filter effectively removes impurities from the dyeing solution, preventing contamination of the lenses. The circulation pumps ensure continuous flow of the dyeing solution, maintaining stable concentration and cleanliness, thus ensuring reliable dyeing results. Furthermore, the filter uses a pleated filter element, preferably made of polypropylene.

[0010] In the aforementioned lens staining machine, the lifting assembly includes lifting cylinders located on both sides of one end of the staining chamber. Each lifting cylinder has an axially upward-extending lifting rod. A rectangular bracket is positioned above the staining chamber between the upper ends of the two lifting rods, and the lens clamping structure is mounted on the rectangular bracket. This design, where the lifting cylinders on both sides drive the lifting rods and the rectangular bracket, achieves automated lifting of the lens clamping structure, reducing manual operation and improving operational convenience and accuracy. The rectangular bracket provides a stable mounting base for the lens clamping structure.

[0011] In the aforementioned lens dyeing machine, the lens clamping structure includes several grippers positioned on the side of a rectangular hanger away from the lifting rod. Each gripper corresponds to a dyeing pool, and both ends of the rectangular hanger on the side away from the lifting rod are provided with hanger connecting parts. The one-to-one correspondence between the grippers and dyeing pools ensures that each gripper can accurately place the lens into its corresponding dyeing pool, avoiding misalignment that could affect dyeing. The hanger connecting parts are for adding rectangular hangers when necessary to increase the number of hanging points on the lens and improve lens dyeing efficiency.

[0012] In the aforementioned lens dyeing machine, the depth of the dyeing pool is 25cm-35cm, the length of the dyeing pool is 60cm-65cm, the width of the dyeing pool is 10cm-12cm, and the lifting height of the lifting rod is 20cm-23cm.

[0013] In the aforementioned lens staining machine, a heating plate is provided at the bottom of the staining tank, and the area of ​​the heating plate is less than or equal to the area of ​​the bottom of the staining tank. The heating plate at the bottom of the staining tank can precisely control the temperature of the staining solution, providing a suitable temperature environment for the staining process. The design that the area of ​​the heating plate does not exceed the area of ​​the tank bottom avoids uneven temperature distribution in the staining solution caused by localized overheating, ensuring the stability of the staining solution temperature and improving the consistency of the staining effect.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. The device adopts a layout of multiple dyeing tanks arranged side by side, realizing batch dyeing function within a limited dyeing chamber. At the same time, the reflux plate can effectively separate the chambers without affecting the circulation of dyeing solution. Combined with the bottom inlet and top reflux hole group design, the flow path of dyeing solution in the tank is more reasonable, avoiding local stagnation and improving the overall utilization efficiency of the dyeing tank.

[0016] 2. Each dyeing pool in this device is equipped with an independent dyeing solution circulation filtration structure. Powered by a circulation pump, it forms a closed-loop circulation with the filter, which can not only continuously remove impurities from the dyeing solution and maintain its cleanliness, but also ensure that the concentration of the dyeing solution is uniform and stable.

[0017] 3. The porous design of the inlet and return hole groups of this device further optimizes the liquid flow distribution, reduces local concentration differences, and ensures that the lens is subjected to uniform force during the dyeing process, effectively improving the consistency and reliability of the dyeing effect.

[0018] 4. The lifting assembly of this device uses lifting cylinders on both sides to drive the rectangular hanging bracket and lens clamping structure to achieve automated lifting. Combined with the one-to-one correspondence between the gripper and the dyeing pool, it ensures the accuracy of lens picking and placing, greatly reduces manual intervention, and lowers the risk of dyeing deviation caused by human error.

[0019] 5. The device's multi-dyeing pool independent operation mode can process lenses with different needs in parallel, significantly improving dyeing efficiency and better adapting to the needs of industrial mass production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0022] In the diagram: 1. Dyeing chamber; 2. Dyeing pool; 21. Return chamber; 22. Dyeing chamber; 23. Return plate; 3. Liquid inlet group; 31. Liquid inlet; 4. Return hole group; 41. Return hole; 5. Dyeing solution circulation filtration structure; 51. Circulation pump; 52. Filter; 53. Return pipeline; 54. Liquid inlet pipeline; 6. Lifting assembly; 61. Lifting cylinder; 62. Lifting rod; 63. Rectangular bracket; 7. Lens clamping structure; 71. Grip clamp; 72. Bracket connection. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-2 As shown, a lens dyeing machine includes a dyeing chamber 1, with at least one dyeing pool 2 inside the dyeing chamber 1. A reflux plate 23 is provided on one side of the dyeing pool 2, which can divide the dyeing pool 2 into a reflux chamber 21 and a dyeing chamber 22. A liquid inlet hole group 3 is provided at the lower end of the dyeing pool 2, which communicates with the dyeing chamber 22. A reflux hole group 4 is provided on the upper side of the reflux plate 23, which can connect the reflux chamber 21 and the dyeing chamber 22. The reflux hole group 4 and the liquid inlet hole group 3 are connected by a dyeing liquid circulation filtration structure 5. At one end of the dyeing chamber 1, at least one lens clamping structure 7 corresponding to the dyeing chamber 22 of the dyeing pool 2 is provided through a lifting component 6.

[0025] like Figure 1 As shown, the dyeing chamber 1 contains several dyeing pools 2 arranged side-by-side adjacent to each other. Each dyeing pool 2 is equipped with a dyeing solution circulation filtration structure 5. This design of multiple dyeing pools 2 arranged side-by-side effectively improves the batch processing capacity of the equipment, allowing for the simultaneous dyeing of multiple sets of lenses, significantly increasing work efficiency. Furthermore, each dyeing pool 2 is equipped with an independent circulation filtration structure, ensuring that the dyeing solution parameters in different dyeing pools 2 do not interfere with each other, meeting the needs of simultaneously processing lenses with different dyeing requirements, and enhancing the practicality and flexibility of the equipment.

[0026] In this design, the reflux plates 23 in each dyeing tank 2 are all located on the same side of the corresponding dyeing tank 2, and the width of the reflux cavity 21 is smaller than the width of the dyeing cavity 22. This standardized placement of the reflux plates 23 in each dyeing tank 2 ensures the standardization of the equipment structure, facilitating uniform processing during production and subsequent maintenance. Furthermore, the design of the reflux cavity 21 being narrower than the dyeing cavity 22 optimizes the space allocation in the dyeing tank 2, maximizing the dyeing area while ensuring the reflux function, thus improving the utilization rate of the dyeing tank 2.

[0027] Specifically, the reflux plate 23 is vertically positioned and its height is no higher than that of the dyeing tank 2. The reflux plate 23 extends from one end of the dyeing tank 2 to the other. This vertical positioning and height effectively separates the two chambers without affecting the liquid level balance of the dyeing solution, ensuring a stable dyeing process. The design of the reflux plate 23 extending from one end to the other prevents the dyeing solution from stagnating at the edge of the tank, allowing it to circulate smoothly throughout the dyeing tank 2, thus improving the uniformity of lens dyeing.

[0028] Furthermore, the inlet hole group 3 has at least two inlet holes 31 located at the bottom of the dyeing chamber 22 of the dyeing pool 2, and the reflux hole group 4 has several reflux holes 41 arranged horizontally side by side, and both the inlet holes 31 and the reflux holes 41 are connected to the dyeing pool 2. The inlet hole group 3 uses at least two inlet holes 31 located at the bottom of the dyeing chamber 22, which allows the dyeing solution to enter the dyeing area more evenly. The multiple horizontal reflux holes 41 of the reflux hole group 4 increase the reflux area and accelerate the circulation speed of the dyeing solution. This porous design makes the dyeing solution flow more smoothly and be distributed more evenly in the dyeing pool 2, reduces local concentration differences, and provides a guarantee for improving the dyeing quality.

[0029] like Figure 2 As shown, the dyeing solution circulation filtration structure 5 includes several circulation pumps 51 located below the dyeing chamber 1 and corresponding one-to-one with the dyeing pool 2. The circulation pumps 51 are connected to the filters 52, and the circulation pumps 51 are connected to the return chamber 21 via the return pipe 53. The filters 52 are connected to the inlet hole group 3 via the inlet pipe 54. The circulation pumps 51 provide power for the circulation of the dyeing solution. Combined with the filters 52, the circulation filtration structure forms a closed-loop dyeing solution circulation system. The filters 52 effectively remove impurities from the dyeing solution, preventing impurities from contaminating the lenses. The circulation pumps 51 ensure continuous flow of the dyeing solution, maintaining the stability of the dyeing solution concentration and cleanliness, thus ensuring the reliability of the dyeing effect. Furthermore, the filters 52 use pleated filter elements, preferably made of polypropylene.

[0030] The lifting assembly 6 includes lifting cylinders 61 positioned on both sides of one end of the dyeing chamber 1. Each lifting cylinder 61 contains an axially upward-extending lifting rod 62. A rectangular bracket 63 is positioned between the upper ends of the two lifting rods 62, located above the dyeing chamber 1, and the lens clamping structure 7 is mounted on the rectangular bracket 63. The design of the lifting cylinders 61 on both sides driving the lifting rods 62 and the rectangular bracket 63 enables automated lifting of the lens clamping structure 7, reducing manual operation and improving the convenience and accuracy of operation. The rectangular bracket 62 provides a stable mounting foundation for the lens clamping structure 7.

[0031] Specifically, the lens clamping structure 7 includes several grippers 71 disposed on the side of the rectangular bracket 63 away from the lifting rod 62. Each gripper 71 corresponds to a dyeing pool 2, and each end of the rectangular bracket 63 away from the lifting rod 62 has a bracket connecting part 72. The one-to-one correspondence between the grippers 71 and the dyeing pool 2 ensures that each gripper 71 can accurately place the lens into the corresponding dyeing pool 2, avoiding misalignment that may affect dyeing. The bracket connecting part 72 is used to add a rectangular bracket 63 when necessary to increase the number of lens hanging points and improve lens dyeing efficiency.

[0032] like Figure 1 As shown, the depth of dyeing pool 2 is 25cm-35cm, the length of dyeing pool 2 is 60cm-65cm, the width of dyeing pool 2 is 10cm-12cm, and the lifting height of lifting rod 62 is 20cm-23cm.

[0033] The dyeing pool 2 is equipped with a heating plate at its bottom, the area of ​​which is smaller than or equal to the area of ​​the bottom of the dyeing pool 2. The heating plate at the bottom of the dyeing pool 2 can precisely control the temperature of the dyeing solution, providing a suitable temperature environment for the dyeing process. The design that the area of ​​the heating plate 2 does not exceed the area of ​​the bottom of the pool avoids uneven temperature of the dyeing solution caused by local overheating, ensuring the stability of the dyeing solution temperature and improving the consistency of the dyeing effect.

[0034] The principle of this embodiment is as follows:

[0035] First, add the dyeing solution to the dyeing tank 2. One or more dyeing solutions can be added as needed. Start the circulation pump 51. The dyeing solution enters the reflux chamber 21 through the reflux hole 41, flows to the filter 52 via the circulation pump 51, and then enters the dyeing chamber 22 through the inlet hole 31, circulating continuously. If necessary, turn on the heater to maintain the dyeing solution at the set temperature. Raise the lifting rod 62, install the rectangular hanger 63, and use the gripper 71 to clamp the edge of the lens and hang it on the rectangular hanger 63. Start the lifting cylinder 61 to slowly lower the rectangular hanger 63, allowing the lens to be fully immersed in the dyeing solution. The lifting cylinder 61 maintains slight up-and-down movement, causing the lens to rise and fall slightly in the dyeing solution. Maintain this process for a certain time as required by the dyeing process. Raise the lifting rod 62, remove the gripper 71 along with the lens, and transfer it to another cleaning tank. After cleaning, the subsequent hardening process can proceed. If necessary, another rectangular hanger 63 can be added to the hanger connection part 72 of the rectangular hanger 63 to increase the number of lenses dyed each time.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0037] Although this document frequently uses terms such as dyeing chamber 1, dyeing pool 2, reflux chamber 21, dyeing chamber 22, reflux plate 23, inlet hole group 3, inlet hole 31, reflux hole group 4, reflux hole 41, dyeing solution circulation filtration structure 5, circulation pump 51, filter 52, reflux pipeline 53, inlet pipeline 54, lifting assembly 6, lifting cylinder 61, lifting rod 62, rectangular hanger 63, lens clamping structure 7, gripper 71, and hanger connection part 72, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A lens staining machine, comprising a staining chamber (1), characterized in that, The dyeing box (1) is provided with at least one dyeing pool (2). The dyeing pool (2) is provided with a reflux plate (23) on one side, which can divide the dyeing pool (2) into a reflux chamber (21) and a dyeing chamber (22). The dyeing pool (2) is provided with an inlet hole group (3) connected to the dyeing chamber (22) at the lower end. The reflux plate (23) is provided with a reflux hole group (4) connected to the reflux chamber (21) and the dyeing chamber (22) on the upper side. The reflux hole group (4) and the inlet hole group (3) are connected by a dyeing liquid circulation filtration structure (5). The dyeing box (1) is provided with at least one lens clamping structure (7) corresponding to the dyeing chamber (22) of the dyeing pool (2) through a lifting component (6).

2. The lens staining machine according to claim 1, characterized in that, The dyeing chamber (1) has several dyeing pools (2) arranged side by side, and each dyeing pool (2) is equipped with a dyeing solution circulation filtration structure (5).

3. A lens staining machine according to claim 1, characterized in that, The reflux plates (23) in each dyeing pool (2) are all set on the same side of the corresponding dyeing pool (2), and the width of the reflux cavity (21) is smaller than the width of the dyeing cavity (22).

4. A lens staining machine according to claim 1, characterized in that, The reflux plate (23) is vertically arranged and the height of the reflux plate (23) is not higher than the height of the dyeing tank (2). The reflux plate (23) extends from one end of the dyeing tank (2) to the other end.

5. A lens staining machine according to claim 1, characterized in that, The inlet hole group (3) has at least two inlet holes (31) located at the bottom of the dyeing chamber (22) of the dyeing pool (2), and the return hole group (4) has several return holes (41) arranged horizontally side by side, and the inlet holes (31) and the return holes (41) are connected to the dyeing pool (2).

6. A lens staining machine according to claim 1, characterized in that, The dyeing solution circulation filtration structure (5) includes several circulation pumps (51) arranged below the dyeing box (1) and corresponding one-to-one with the dyeing pool (2). The circulation pumps (51) are connected to the filter (52). The circulation pumps (51) are connected to the return chamber (21) through the return pipe (53). The filter (52) is connected to the inlet hole group (3) through the inlet pipe (54).

7. A lens staining machine according to claim 1, characterized in that, The lifting assembly (6) includes lifting cylinders (61) arranged on both sides of one end of the dyeing box (1). The lifting cylinder (61) has an axially upward extending lifting rod (62). A rectangular bracket (63) located above the dyeing box (1) is provided between the upper ends of the two lifting rods (62), and the lens clamping structure (7) is arranged on the rectangular bracket (63).

8. A lens staining machine according to claim 7, characterized in that, The lens clamping structure (7) includes several grippers (71) arranged on the side of the rectangular hanger (63) away from the lifting rod (62). The grippers (71) are arranged one-to-one with the dyeing pool (2), and the two ends of the rectangular hanger (63) away from the lifting rod (62) are respectively provided with hanger connecting parts (72).

9. A lens staining machine according to claim 7, characterized in that, The dyeing pool (2) has a depth of 25cm-35cm, a length of 60cm-65cm, a width of 10cm-12cm, and a lifting height of 20cm-23cm for the lifting rod (62).

10. A lens staining machine according to claim 1, characterized in that, The dyeing pool (2) is equipped with a heating plate at the bottom, and the area of ​​the heating plate is smaller than or equal to the area of ​​the bottom of the dyeing pool (2).