Lens suction cup

Abstract

The lens suction cup comprises a suction cup body, a vacuum cavity is formed in the suction cup body, an air vent communicated with the vacuum cavity is formed in the upper end of the suction cup body, a plurality of micropores communicated with the vacuum cavity are formed in the lower end of the suction cup body, and the lower end face of the suction cup body is attached to the upper end face of a lens to be sucked. After the lower end of the suction cup body is attached to the upper end of an unshaped lens, upward driving pressure is applied to the lens through the micropores, the stressed position of the lens is dispersed, and therefore the upward force borne by the local part of the lens is reduced, and the lens is not prone to deformation in the suction process.

Description

Technical Field

[0001] The present application relates to the technical field of suction cups, and in particular to a lens suction cup. Background Art

[0002] During the lens processing process, the lens needs to be transferred between different workstations. Usually, a suction cup is used to suck the lens and then transfer it.

[0003] Chinese patent application number 202220578857.1 discloses a suction cup, including a first suction cup part and a second suction cup part, the first suction cup part including a first area and a second area; the second area is located at the outer edge of the first area, the second area is inclined toward the surface to be adsorbed relative to the first area, the second area is an elastic structure, the second suction cup part is provided with a groove, the groove corresponds to the position of the second area, and is used to make the second area be received in the groove when it is compressed and deformed, the second suction cup part has an outer edge, and the groove is located on the inner side of the outer edge.

[0004] Since the lens is still in a high temperature state after demolding during the warm setting process, the lens has not yet cooled and set. If the above-mentioned suction cup is directly used to suck the lens, the suction cup will apply an upward pressure to the lens, and the lens that has not been cooled and set will also be deformed accordingly after being subjected to the upward pressure, thereby affecting the optical performance of the lens.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to prevent an uncooled and shaped lens from being easily deformed due to an upward force when being sucked by a suction cup, the present application provides a lens suction cup.

[0007] The present application provides a lens suction cup, which adopts the following technical solution:

[0008] A lens suction cup includes a suction cup body, a vacuum chamber is provided in the suction cup body, an air vent connected to the vacuum chamber is provided at the upper end of the suction cup body, a plurality of microholes connected to the vacuum chamber are opened at the lower end of the suction cup body, and the lower end surface of the suction cup body is in contact with the upper end surface of the lens to be sucked.

[0009] By adopting the above technical solution, after the lower end of the suction cup body is attached to the upper end of the unformed lens, the micropores respectively apply upward driving pressure to the lens, and by dispersing the position of the force applied to the lens, the upward force applied to the local part of the lens is reduced, so that the lens is not easily deformed during the suction process.

[0010] Optionally, a first flexible member that is permeable to air is further provided at the lower end of the suction cup body, and the first flexible member covers the lower end surface of the suction cup body.

[0011] By adopting the above technical solution, when the lower end of the suction cup body contacts the upper end of the lens, the first flexible member is used to fill the gap between the suction cup body and the lens, so that the suction cup body can stably adsorb the lens. At the same time, the first flexible member is used to deform during the contact between the suction cup body and the lens, so that the suction cup body will not directly contact the lens, and the lens will not be indented due to direct contact with the suction cup body.

[0012] Optionally, the lower end surface of the first flexible member is adapted to the shape of the upper end surface of the lens to be sucked.

[0013] By adopting the above technical solution, when the first flexible member contacts and compresses the lens, no excessive reaction force on the lens will be generated due to excessive compression at a certain position.

[0014] Optionally, a second flexible member that is permeable to air is further provided at the lower end of the first flexible member, and a clearance groove is passed through the lower end of the second flexible member, and the clearance groove is connected to all the micropores at the same time.

[0015] By adopting the above technical solution, when the suction cup body adsorbs the flat lens, the second flexible part fills the gap between the first flexible part and the lens, so that the suction cup body can adsorb the flat lens. At the same time, a negative pressure will be formed in the positioning groove, so that the lens can be adsorbed in advance and the position of the lens relative to the suction cup body will not change.

[0016] Optionally, the lower end surface of the second flexible member is adapted to the shape of the upper end surface of the lens to be sucked.

[0017] By adopting the above technical solution, when the second flexible member is provided and the unformed lens is adsorbed, the second flexible member will not be locally over-compressed.

[0018] Optionally, the first flexible member is breathable high-resilience foam.

[0019] By adopting the above technical solution, air can pass through the first flexible member to apply negative pressure to the lens, and the first flexible member can also return to its original shape after being compressed.

[0020] Optionally, the second flexible member is breathable high-resilience foam.

[0021] By adopting the above technical solution, air can pass through the second flexible member to apply negative pressure to the lens, and the second flexible member can also return to its original shape after being compressed.

[0022] Optionally, the elasticity of the first flexible member is smaller than that of the second flexible member, and the air permeability of the first flexible member is smaller than that of the second flexible member.

[0023] By adopting the above technical solution, negative pressure can be formed in the clearance groove to pre-absorb the lens, and the second flexible member can be more easily compressed so that the lens can be attached to the first flexible member.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting up multiple microholes, the force-bearing positions on the upper surface of the lens are increased, so that the upward pressure on the lens is more dispersed, making the lens less likely to deform during the suction process;

[0026] 2. The first flexible member and the second flexible member are used to enable the suction cup to stably apply negative pressure to the lens, and also to prevent the suction cup from directly contacting the lens, so that it is not easy to generate indentations on the lens surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram for illustrating the internal structure of the suction part according to an embodiment of the present application.

[0029] In the figure, 1, suction part; 11, vacuum chamber; 12, micropore; 2, cover plate; 21, vent; 3, first flexible part; 4, second flexible part; 41, clearance groove. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] The present application discloses a lens suction cup, such as Figure 1 and Figure 2As shown, the suction cup comprises a suction portion 1 and a cover plate 2 disposed above the suction portion 1. A vacuum chamber 11 is provided at the upper end of the suction portion 1. The cover plate 2 is bolted to the upper end of the suction portion 1, thereby sealing the vacuum chamber 11. A vent 21 is provided through the upper end of the cover plate 2 for communication with the vacuum chamber 11. The vent 21 is connected to an external negative pressure device, thereby reducing the air pressure within the vacuum chamber 11. The suction portion 1, distal from the cover plate 2, also has a plurality of micropores 12 disposed in a row, communicating with the vacuum chamber 11. The micropores 12 are arranged in a straight line. The end surface of the suction portion 1, where the micropores 12 are disposed, is curved. The lower end surface of the suction portion 1 is adapted to contact the upper end surface of the lens to be suctioned. During suction, the micropores 12 apply negative pressure to the upper end of the lens, distributing the force applied to the lens during suction. This reduces deformation of the lens during suction, enabling the suction cup to suction uncooled lenses.

[0032] Because the lower end of the suction portion 1 applies a slight downward pressure to the lens when it contacts and absorbs the lens, an indentation will still be formed on the surface of the uncooled and shaped lens. Therefore, the lower end of the suction portion 1 is also provided with a first flexible member 3 that is permeable to air. In this embodiment, the first flexible member 3 is made of breathable, high-resilience foam. The first flexible member 3 is adhered to the lower end surface of the suction portion 1 with glue, completely covering the lower end surface of the suction portion 1. The micropores 12 are not covered by the glue coating on the first flexible member 3. When the suction portion 1 moves downward and contacts the uncooled and shaped lens, the first flexible member 3 first contacts the lens. When the first flexible member 3 contacts the lens, it will deform, so that the uncooled and shaped lens will not be deformed by the pressure applied by the suction portion 1.

[0033] Although the first flexible member 3 is made of a flexible material and can be deformed when subjected to force, when the compression amplitude of the first flexible member 3 becomes larger, the first flexible member 3 will still exert pressure on the contacted object. Therefore, the end face of the first flexible member 3 away from the suction part 1 is set to an arc shape, and the arc-shaped end face of the first flexible member 3 is arranged to fit the lens to be sucked, so that the first flexible member 3 can be directly attached to the surface of the lens, so that the lens is not easily subjected to excessive reaction force due to the compression of the first flexible member 3, and the lens that is cooled and shaped is not easily deformed during the suction process.

[0034] To enable the suction cup to also absorb molded flat lenses, a second flexible member 4, through which air can pass, is provided at the lower end of the first flexible member 3. In this embodiment, the second flexible member 4 is made of breathable, high-resilience foam. A clearance groove 41 extends through the lower end of the second flexible member 4. The clearance groove 41 is simultaneously connected to all of the micropores 12, meaning that all of the micropores 12 are located within the space within the clearance groove 41. When sucking a flat lens, the second flexible member 4 can be attached to the upper end surface of the flat lens. The air in the clearance groove 41 is then sucked into the micropores 12, creating a negative pressure space within the clearance groove 41, thereby sucking the flat lens.

[0035] In addition, during the process of sucking the lens, the lower end surface of the second flexible part 4 will also abut against the uncooled and shaped lens. Therefore, in order to prevent the uncooled and shaped lens from being easily deformed due to the pressure exerted by the compression of the second flexible part 4, the lower end surface of the second flexible part 4 is also arranged in an arc shape, and the arc surface of the second flexible part 4 is in contact with the upper end surface of the unshaped lens to be sucked, so that the second flexible part 4 can stably fit the upper end of the unshaped lens and adsorb the unshaped lens.

[0036] Since the second flexible member 4 first contacts the unformed lens during the adsorption process, and then the second flexible member 4 is compressed to a certain extent to generate negative pressure in the clearance groove 41 and absorb the lens, the elasticity of the first flexible member 3 is less than that of the second flexible member 4, and the air permeability of the first flexible member 3 is less than that of the second flexible member 4, so that it is not easy for air to pass through the first flexible member 3 directly into the micropore 12, resulting in insufficient negative pressure in the clearance groove 41, and during the compression of the second flexible member 4, the first flexible member 3 can still maintain a stable state, so that the second flexible member 4 can fit on the surface of the unformed lens.

[0037] The implementation principle of this embodiment is: when the suction cup moves downward until the second flexible part 4 abuts against the workpiece and produces a certain deformation, the negative pressure in the vacuum chamber 11 continues to absorb the air in the makeshift groove 41, thereby forming a negative pressure in the makeshift groove 41, and then the suction cup continues to move downward so that the first flexible part 3 also abuts against the workpiece, and then the micropore 12 applies negative pressure to adsorb the workpiece, and then the suction cup moves to move the workpiece.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lens suction cup, characterized in that: The invention comprises a suction cup body, wherein a vacuum cavity (11) is provided in the suction cup body, an air vent (21) communicating with the vacuum cavity (11) is provided at the upper end of the suction cup body, a plurality of micro holes (12) communicating with the vacuum cavity (11) are provided at the lower end of the suction cup body, and the lower end surface of the suction cup body is attached to the upper end surface of the lens to be sucked; and a first flexible member (3) capable of passing air is also provided at the lower end of the suction cup body, and the first flexible member (3) covers the lower end surface of the suction cup body.

2. The lens suction cup according to claim 1, characterized in that: The lower end surface of the first flexible member (3) is adapted to the shape of the upper end surface of the lens to be sucked.

3. The lens suction cup according to claim 1, characterized in that: The lower end of the first flexible member (3) is further provided with a second flexible member (4) capable of passing air, and the lower end of the second flexible member (4) is penetrated by a clearance groove (41), and the clearance groove (41) is simultaneously connected to all the micropores (12).

4. The lens suction cup according to claim 3, wherein: The lower end surface of the second flexible member (4) is adapted to the shape of the upper end surface of the lens to be sucked.

5. The lens suction cup according to claim 1, characterized in that: The first flexible member (3) is breathable high-resilience foam.

6. The lens suction cup according to claim 3, characterized in that: The second flexible member (4) is breathable high-resilience foam.

7. The lens suction cup according to claim 3, characterized in that: The elasticity of the first flexible member (3) is smaller than that of the second flexible member (4), and the air permeability of the first flexible member (3) is smaller than that of the second flexible member (4).

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