Resin lens hardening groove

Abstract

The utility model relates to a resin lens hardening groove. The technical problems that an existing hardening groove cannot flow in the groove, hardening stripes are easily generated and the like are solved. Comprising an inner shell with a hardening groove body, the inner shell is arranged in an outer shell, an overflow groove body communicated with the hardening groove body is formed between the outer side of the inner shell and the inner side of the outer shell, a liquid outlet pipe communicated with the bottom of the overflow groove body is arranged at the lower end of the outer shell, and the liquid outlet pipe is communicated with a distribution ring pipe through a circulation structure. A plurality of liquid inlet pipes which penetrate through the outer shell and the inner shell and extend into the hardening groove body are connected to the distribution ring pipe, and slow flow liquid inlet structures are arranged on the liquid inlet pipes. The utility model has the advantages that the distribution ring pipe and the liquid inlet pipe are utilized, and under the matching of the circulating pump and the filter element, the hardening liquid can flow smoothly without dead angles in the tank, so that hardening stripes are avoided, and the attractive appearance of the lens is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of lens hardening equipment, and particularly relates to a hardening tank for resin lenses. Background Art

[0002] Resin spectacle lenses have the characteristics of light weight, good light transmittance, easy processing, etc., and are widely used in vision correction instead of traditional glass lenses. Since the resin lens material is relatively soft, easy to scratch and not durable, it is necessary to use a hardening solution to harden the resin lens, and a coating with higher hardness is attached to the surface of the lens substrate to improve the hardness and wear resistance of the lens. Therefore, the hardening process is a very important process for the whole lens processing. After the existing hardening process immerses the lens in the hardening solution, since the hardening solution cannot flow in the tank, hardening stripes are likely to be generated on the lens surface, affecting the appearance quality of the lens. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems and provide a hardening tank for resin lenses.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A hardening tank for resin lenses includes an inner shell with a hardening tank body. The inner shell is arranged inside the outer shell, and an overflow tank body communicating with the hardening tank body is formed between the outer side of the inner shell and the inner side of the outer shell. A liquid outlet pipe communicating with the bottom of the overflow tank body is arranged at the lower end of the outer shell. The liquid outlet pipe is communicated with a distribution ring pipe through a circulation structure. A plurality of liquid inlet pipes penetrating through the outer shell and the inner shell and extending into the hardening tank body are connected to the distribution ring pipe, and a slow-flow liquid inlet structure is arranged on the liquid inlet pipe. The hardening solution overflows from the hardening tank body into the overflow tank body, flows out through the liquid outlet pipe at the bottom of the overflow tank body, is shunted through the circulation structure and the distribution ring pipe, and returns to the hardening tank body from the liquid inlet pipe, thereby realizing the circulating reflux of the hardening tank.

[0005] In the above-mentioned hardening tank for resin lenses, both the inner shell and the outer shell are of a structure with an open upper end and a closed lower end, and the open upper end of the inner shell is lower than that of the outer shell, so as to communicate the hardening tank body and the overflow tank body. The hardening solution overflows from the upper end of the inner shell and flows into the outer shell.

[0006] In the above-mentioned hardening tank for resin lenses, the overflow tank body is formed between the circumferential outer side of the inner shell and the circumferential inner side of the outer shell and between the lower end of the inner shell and the lower end of the outer shell. It is beneficial to the circulation of the hardening solution and also convenient for extracting the hardening solution.

[0007] In the above-mentioned hardening tank for resin lenses, the slow-flow liquid inlet structure includes a cap provided at one end of the liquid inlet pipe located inside the hardening tank body and capable of closing the end of the liquid inlet pipe. The diameter of the cap is larger than that of the liquid inlet pipe, and a slow-flow liquid inlet assembly is provided on the outer circumference of the liquid inlet pipe. The cap is used to prevent the hardening liquid from overflowing from the end of the liquid inlet pipe and can slow down the flow rate.

[0008] In the above-mentioned hardening tank for resin lenses, the slow-flow liquid inlet assembly includes four groups of annular opening groups arranged successively from top to bottom on the liquid inlet pipe. Each group of annular opening groups has a number of arc-shaped grooves distributed on the outer circumference of the liquid inlet pipe, and the arc-shaped grooves in adjacent two groups of annular opening groups are arranged in a staggered manner. The staggered arrangement of the arc-shaped grooves can slow down the flow rate of the hardening liquid.

[0009] In the above-mentioned hardening tank for resin lenses, the diameter of the cap is 5.0 + / - 1.0 mm larger than that of the liquid inlet pipe, the opening width of the arc-shaped groove is 2.0 + / - 0.2 mm, and the vertical distance between two adjacent arc-shaped grooves in the same group of annular opening groups is 10.0 + / - 0.3 mm.

[0010] In the above-mentioned hardening tank for resin lenses, the circulation structure includes a circulation pump connected to the liquid outlet pipe. The circulation pump is connected to the distribution ring pipe through a filter element, and switching valves are respectively provided between the liquid outlet pipe and the circulation pump, between the circulation pump and the filter element, and between the filter element and the distribution ring pipe. The circulation pump is used to extract the hardening liquid in the overflow tank body and input the hardening liquid into the hardening tank body. The filter element is used to filter impurities in the hardening liquid to ensure the quality of lens processing.

[0011] In the above-mentioned hardening tank for resin lenses, the distribution ring pipe is circular and is provided at the lower end of the outer shell. The lower ends of the liquid inlet pipes are respectively evenly distributed on one side of the distribution ring pipe and are all connected to the distribution ring pipe. The distribution ring pipe can ensure that the hardening liquid flows into the hardening tank body without dead angles.

[0012] In the above-mentioned hardening tank for resin lenses, a drain pipe is provided in the hardening tank body. The drain pipe successively penetrates through the inner shell and the outer shell, and the lower end of the drain pipe extends below the outer shell. A drain valve is provided below the drain pipe. The drain pipe is used to drain all the hardening liquid.

[0013] In the above-mentioned hardening tank for resin lenses, the outer shell is an ice-water jacket with a sandwich layer, and the sandwich layer is connected to an ice-water machine to form a hardening liquid temperature control structure. In this way, the temperature of the hardening liquid can be controlled.

[0014] Compared with the existing technology, the advantages of the present utility model are as follows:

[0015] 1. The device utilizes a distribution loop pipe and a liquid inlet pipe, and with the cooperation of a circulation pump and a filter element, it enables the hardening liquid to flow smoothly and without dead corners in the tank, thereby avoiding the generation of hardening streaks and ensuring the beautiful appearance of the lens.

[0016] 2. The device is provided with a slow-flow liquid inlet assembly on the liquid inlet pipe, which can keep the hardening liquid entering the hardening tank body smoothly, avoid the formation of turbulence, and reduce hardening streaks. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is an internal schematic diagram of the present utility model.

[0019] Figure 3 is a bottom schematic diagram of the present utility model.

[0020] Figure 4 is a structural sectional view of the present utility model.

[0021] Figure 5 is a schematic structural diagram of the liquid inlet pipe in the present utility model.

[0022] In the figure: inner housing 1, hardening tank body 11, drain pipe 12, drain valve 13, outer housing 2, overflow tank body 21, liquid outlet pipe 3, circulation structure 4, circulation pump 41, filter element 42, switch valve 43, distribution loop pipe 5, liquid inlet pipe 51, slow-flow liquid inlet structure 6, cap 61, slow-flow liquid inlet assembly 7, annular opening group 71, arc-shaped groove 72. Detailed Description of the Preferred Embodiments

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0024] As Figures 1-5 shown, a resin lens hardening tank includes an inner housing 1 having a hardening tank body 11. The inner housing 1 is disposed inside an outer housing 2, and an overflow tank body 21 communicating with the hardening tank body 11 is formed between the outer side of the inner housing 1 and the inner side of the outer housing 2. The lower end of the outer housing 2 is provided with a liquid outlet pipe 3 communicating with the bottom of the overflow tank body 21. The liquid outlet pipe 3 is connected to a distribution loop pipe 5 through a circulation structure 4. A plurality of liquid inlet pipes 51 penetrating through the outer housing 2 and the inner housing 1 and extending into the hardening tank body 11 are connected to the distribution loop pipe 5, and a slow-flow liquid inlet structure 6 is provided on the liquid inlet pipe 51. The hardening liquid overflows from the hardening tank body 11 into the overflow tank body 21, flows out from the liquid outlet pipe 3 at the bottom of the overflow tank body 21, passes through the circulation structure 4 and is branched by the distribution loop pipe 5, and returns to the hardening tank body 11 from the liquid inlet pipe 51, thereby realizing the circulating reflux of the hardening tank.

[0025] As Figure 4As shown, both the inner housing 1 and the outer housing 2 have an open upper end and a closed lower end structure, and the open upper end of the inner housing 1 is lower than the open upper end of the outer housing 2, thus connecting the hardening tank 11 and the overflow tank 21. The hardening liquid overflows from the upper end of the inner housing 1 and flows into the outer housing 2.

[0026] Among them, the overflow tank 21 is formed between the outer circumferential side of the inner housing 1 and the inner circumferential side of the outer housing 2, as well as between the lower end of the inner housing 1 and the lower end of the outer housing 2. This is beneficial to the circulation of the hardening liquid and also convenient for extracting the hardening liquid.

[0027] Combined Figure 4 and Figure 5 As shown, the slow-flow liquid inlet structure 6 includes a cap 61 provided at one end of the liquid inlet pipe 51 located in the hardening tank 11 and capable of closing the end of the liquid inlet pipe 51. The diameter of the cap 61 is larger than the diameter of the liquid inlet pipe 51, and a slow-flow liquid inlet assembly 7 is provided on the outer circumferential side of the liquid inlet pipe 51. The cap 61 is used to prevent the hardening liquid from gushing out from the end of the liquid inlet pipe 51 and can relieve the flow rate.

[0028] Among them, the slow-flow liquid inlet assembly 7 includes four groups of annular opening groups 71 sequentially arranged on the liquid inlet pipe 51 from top to bottom. Each group of annular opening groups 71 has a number of arc-shaped grooves 72 distributed on the outer circumferential side of the liquid inlet pipe 51, and the arc-shaped grooves 72 in adjacent two groups of annular opening groups 71 are arranged in a staggered manner. The staggered arrangement of the arc-shaped grooves 72 can relieve the flow rate of the hardening liquid.

[0029] Specifically, the diameter of the cap 61 is 5.0 + / - 1.0 mm larger than the diameter of the liquid inlet pipe 51, the opening width of the arc-shaped groove 72 is 2.0 + / - 0.2 mm, and the vertical distance between adjacent two arc-shaped grooves 72 in the same group of annular opening groups 71 is 10.0 + / - 0.3 mm.

[0030] Furthermore, the circulation structure 4 includes a circulation pump 41 connected to the liquid outlet pipe 3. The circulation pump 41 is connected to the distribution ring pipe 5 through a filter element 42. Switch valves 43 are respectively provided between the liquid outlet pipe 3 and the circulation pump 41, between the circulation pump 41 and the filter element 42, and between the filter element 42 and the distribution ring pipe 5. The circulation pump 41 is used to extract the hardening liquid in the overflow tank 21 and input the hardening liquid into the hardening tank 11, and the filter element 42 is used to filter impurities in the hardening liquid to ensure the quality of lens processing.

[0031] As Figure 3 shown, the distribution ring pipe 5 is circular and is arranged at the lower end of the outer housing 2. The lower ends of the liquid inlet pipes 51 are uniformly distributed on one side of the distribution ring pipe 5 and are all connected to the distribution ring pipe 5. The distribution ring pipe 5 can ensure that the hardening liquid flows into the hardening tank 11 without dead angles.

[0032] Combined Figure 2 and Figure 3As shown, a drain pipe 12 is provided in the hardening tank body 11. The drain pipe 12 successively penetrates through the inner housing 1 and the outer housing 2, and the lower end of the drain pipe 12 extends below the outer housing 2. A drain valve 13 is provided below the drain pipe 12. The drain pipe 12 is used to drain all the hardening liquid.

[0033] As Figure 1 shown, the outer housing 2 is an ice water jacket with a sandwich layer. The sandwich layer is connected to an ice water machine to form a hardening liquid temperature control structure. In this way, the temperature of the hardening liquid can be controlled.

[0034] The principle of this embodiment lies in:

[0035] The hardening liquid flows from the hardening tank body 11 into the overflow tank body 21. The circulation pump 41 extracts the hardening liquid in the overflow tank body 21 through the liquid outlet pipe 3, and transports it to the distribution ring pipe 5 through the filter element 42, and then flows into the hardening tank body 11 through the liquid inlet pipe 51. The annular opening group 71 on the liquid inlet pipe 51 can make the flow smooth and avoid generating hardening stripes.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although terms such as the inner housing 1, the hardening tank body 11, the drain pipe 12, the drain valve 13, the outer housing 2, the overflow tank body 21, the liquid outlet pipe 3, the circulation structure 4, the circulation pump 41, the filter element 42, the switching valve 43, the distribution ring pipe 5, the liquid inlet pipe 51, the slow-flow liquid inlet structure 6, the cap 61, the slow-flow liquid inlet assembly 7, and the annular opening group 71 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A resin lens hardened groove, comprising an inner shell (1) having a hardened groove body (11), characterized in that: The inner shell (1) is arranged inside the outer shell (2), and an overflow tank (21) connected to the hardened tank (11) is formed between the outer side of the inner shell (1) and the inner side of the outer shell (2). A liquid outlet pipe (3) connected to the bottom of the overflow tank (21) is provided at the lower end of the outer shell (2). The liquid outlet pipe (3) is connected to the distribution ring pipe (5) through a circulation structure (4). The distribution ring pipe (5) is connected to a plurality of liquid inlet pipes (51) that penetrate the outer shell (2) and the inner shell (1) and extend into the hardened tank (11), and a slow-flow liquid inlet structure (6) is provided on the liquid inlet pipe (51).

2. A resin lens hardening groove according to claim 1, characterized in that: The inner shell (1) and the outer shell (2) are both structures with an open upper end and a closed lower end, and the upper end opening of the inner shell (1) is lower than the upper end opening of the outer shell (2), thereby connecting the hardened tank body (11) and the overflow tank body (21).

3. The resin lens hardening groove according to claim 1, characterized in that: The overflow tank (21) is formed between the circumferential outer side of the inner shell (1) and the circumferential inner side of the outer shell (2) and between the lower end of the inner shell (1) and the lower end of the outer shell (2).

4. A resin lens hardening groove according to claim 1, 2 or 3, characterized in that: The slow-flow liquid inlet structure (6) comprises a cover cap (61) which is arranged at one end of the liquid inlet pipe (51) located in the hardened tank body (11) and can seal the end of the liquid inlet pipe (51); the diameter of the cover cap (61) is larger than the diameter of the liquid inlet pipe (51); and a slow-flow liquid inlet component (7) is arranged on the circumferential outer side of the liquid inlet pipe (51).

5. A resin lens hardening groove according to claim 4, characterized in that: The slow-flow liquid inlet assembly (7) comprises four groups of annular opening groups (71) arranged on the liquid inlet pipe (51) in sequence from top to bottom, each group of annular opening groups (71) has a plurality of arc grooves (72) distributed along the outer side of the circumference of the liquid inlet pipe (51), and the arc grooves (72) in two adjacent groups of annular opening groups (71) are staggered one by one.

6. A resin lens hardening groove according to claim 5, characterized in that: The diameter of the cap (61) is 5.0+ / -1.0 mm larger than the diameter of the liquid inlet pipe (51), the opening width of the arc groove (72) is 2.0+ / -0.2 mm, and the vertical spacing between two adjacent arc grooves (72) in the same annular opening group (71) is 10.0+ / -0.3 mm.

7. The resin lens hardening groove according to claim 1, characterized in that: The circulation structure (4) comprises a circulation pump (41) connected to the liquid outlet pipe (3); the circulation pump (41) is connected to the distribution ring pipe (5) via a filter element (42); switch valves (43) are respectively provided between the liquid outlet pipe (3) and the circulation pump (41), between the circulation pump (41) and the filter element (42), and between the filter element (42) and the distribution ring pipe (5).

8. The resin lens hardening groove according to claim 1, characterized in that: The distribution ring pipe (5) is annular and arranged at the lower end of the outer shell (2), and the lower ends of the liquid inlet pipes (51) are evenly distributed on one side of the distribution ring pipe (5) and are all connected to the distribution ring pipe (5).

9. The resin lens hardening groove according to claim 1, characterized in that: A drain pipe (12) is provided in the hardened tank body (11), and the drain pipe (12) passes through the inner shell body (1) and the outer shell body (2) in sequence, and the lower end of the drain pipe (12) extends to below the outer shell body (2), and a drain valve (13) is provided below the drain pipe (12).

10. The resin lens hardening groove according to claim 1, characterized in that: The outer shell (2) is an ice water jacket with an interlayer, and the interlayer is connected to the ice water machine to form a hardening liquid temperature control structure.

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