Sucking disc and adsorption equipment

Abstract

The utility model discloses a suction cup and adsorption equipment. The suction cup comprises a body, a flexible buffer piece and a hard limiting piece, the body is provided with an adsorption end used for adsorbing a lens mold, and the distance of the buffer piece protruding out of the adsorption end is larger than the distance of the limiting piece protruding out of the adsorption end, so that when the adsorption end adsorbs the lens mold, the buffer piece protrudes out of the adsorption end, and the limiting piece protrudes out of the adsorption end. And the lens mold compresses the buffer piece and abuts against the limiting piece. And during adsorption, the flexible buffer piece is preferentially propped against the mirror surface mold, and the buffer piece can reduce the instantaneous adsorption force of the suction cup on the mirror surface mold, so that the possibility that resin in the mirror surface mold overflows is reduced. And the limiting piece can limit the lens mold to continuously move under the adsorption effect, so that the lens mold is positioned at the pouring position, and the smooth proceeding of the pouring process is ensured. Therefore, the suction cup and the adsorption equipment can be effectively applied to the casting process of the lens mold.

Description

Technical Field

[0001] The utility model belongs to the technical field of suction cups, and particularly relates to a suction cup and an adsorption device. Background Art

[0002] Resin lenses have become the mainstream lenses in the eyewear market due to their many advantages such as light weight, good light transmittance, strong impact resistance, not easy to break, and can meet various special needs. During the manufacturing process of resin lenses, processes such as monomer preparation, mold casting, and polymerization curing are required. Among them, during the casting process, the liquid monomer needs to be injected into the lens mold that has been assembled, and finally, the lens can be obtained by curing and demolding.

[0003] Refer to Figure 1 , the lens mold usually includes an A mold 101, a B mold 102, and a tape 103. There is a mold cavity between the A mold 101 and the B mold 102. After one end of the tape 103, as the root, is bonded to the A mold 101 and the B mold 102, it is then bonded around the circumferential surfaces of the A mold 101 and the B mold 102 to make the mold cavity in a closed state. When producing resin lenses, it is usually necessary to use a suction cup to load and unload the lens mold. Specifically, it is necessary to first use the suction cup to suck the lens mold to the casting position, then pour resin into the mold cavity, then use the tape to seal the pouring port, and finally use another suction cup to transfer the tape for unloading to the next process.

[0004] In the prior art, when a hard suction cup contacts the lens mold, the initial instantaneous adsorption force of the hard suction cup on the lens mold may be relatively large, which may squeeze the resin in the mold cavity and even cause the resin to overflow, affecting the finished product quality of the lens.

[0005] When a soft suction cup contacts the lens mold, before pouring resin into the lens mold, it is necessary to first use the suction cup to fix the lens mold to the casting position. However, due to the possible deformation of the soft suction cup, the position of the lens mold may be inconsistent with the set casting position, affecting the casting process of the lens mold.

[0006] Therefore, in view of the above technical problems, it is necessary to provide a suction cup and an adsorption device. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a suction cup and an adsorption device, which can solve the problem that the existing suction cups cannot effectively adapt to the casting process in lens production.

[0008] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0009] A suction cup includes a body, a flexible buffer member, and a rigid limiting member. The body is provided with a suction end for adsorbing a lens mold. The distance by which the buffer member protrudes from the suction end is greater than the distance by which the limiting member protrudes from the suction end, so that when the suction end adsorbs the lens mold, the lens mold compresses the buffer member and abuts against the limiting member.

[0010] In one or more embodiments of the present invention, the buffer member includes an annular wall portion fittingly installed on the periphery of the suction end of the body, and the limiting member is installed inside the annular wall portion.

[0011] In one or more embodiments of the present invention, the inner diameter of the annular wall portion gradually increases in the direction away from the body.

[0012] In one or more embodiments of the present invention, the buffer member further includes a snap ring portion fixedly connected to one end of the annular wall portion close to the body. A first card slot is formed on the outer peripheral wall of the body, and the snap ring portion is snap-fitted into the first card slot.

[0013] In one or more embodiments of the present invention, a second card slot adapted to the shape of the limiting member is formed on the end face side of the suction end of the body, and the limiting member is snap-fitted into the second card slot.

[0014] In one or more embodiments of the present invention, the limiting member is provided as a toroid, and the cross-sectional shape of the toroid is circular.

[0015] In one or more embodiments of the present invention, the body is provided with an air flow channel. The air flow channel includes a first channel provided at the suction end, and the first channel is in a horn shape.

[0016] In one or more embodiments of the present invention, a thickening portion is provided on the outer periphery of the body at the first channel.

[0017] In one or more embodiments of the present invention, the suction cup further includes an adapter rod for communicating with a vacuum pumping device. The air flow channel further includes a second channel communicating with the first channel. The adapter rod is inserted into the second channel and is in communication with the first channel.

[0018] In one or more embodiments of the present invention, an adsorption device is further provided, which includes the above-mentioned suction cup.

[0019] Compared with the prior art, the suction cup and the adsorption device of the present utility model can be effectively applied to the pouring process of the lens mold. During adsorption, the flexible buffer member first abuts against the mirror mold, and the buffer member can reduce the instantaneous adsorption force of the suction cup on the lens mold, reducing the possibility of resin overflow in the lens mold. When the lens mold continues to move to abut against the limiting member, the limiting member can limit the continuous movement of the lens mold under the adsorption action, so as to position the lens mold at the pouring position and ensure the smooth progress of the pouring process. Finally, since the flexible buffer member can generate a certain deformation, it can also adapt to some lens molds with curved surfaces, improving the adaptability of the suction cup to different lens molds. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of a lens mold in the prior art;

[0022] Figure 2 Structural schematic diagram of a suction cup in an embodiment of the present utility model;

[0023] Figure 3 Cross-sectional schematic diagram of a suction cup in an embodiment of the present utility model;

[0024] Figure 4 For Figure 3 Enlarged schematic diagram at A in

[0025] Main reference numeral description:

[0026] 1, body; 11, first card slot; 12, second card slot; 13, first channel; 14, second channel; 15, thickened part; 2, buffer member; 21, annular wall part; 22, snap ring part; 3, limiting member; 4, adapter rod; 101, A mold; 102, B mold; 103, tape. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted in advance that in the pouring process of the lens mold, multiple suction cups are required to cooperate to complete the pouring of the lens mold. Referring to Figure 1 , before pouring, it is necessary to use a suction cup to adsorb the lens mold at the pouring position so as to inject the resin monomer into the lens mold at this place. After pouring, it is necessary to use another suction cup to remove the lens suction cup from the pouring position.

[0029] Referring to Figure 2 and Figure 3 , the suction cup in an embodiment of the present utility model includes a body 1, a flexible buffer member 2 and a rigid limiting member 3. The body 1 is provided with an adsorption end for adsorbing the lens mold. The distance that the buffer member 2 protrudes from the adsorption end is greater than the distance that the limiting member 3 protrudes from the adsorption end, so that when the adsorption end adsorbs the lens mold, the lens mold compresses the buffer member 2 and abuts against the limiting member 3.

[0030] Before pouring, the suction cup adsorbs the lens mold to the pouring position. At this time, the lens mold first abuts against the buffer member 2 and then against the limiting member 3. By providing the limiting member 3, the moving distance of the lens mold under the adsorption action can be restricted, thereby ensuring that the lens mold can be effectively located at the pouring position.

[0031] After pouring, the suction cup removes the lens mold from the pouring position. At this time, the lens mold first abuts against the buffer member 2 and then against the limiting member 3. The flexible buffer member 2 can generate a certain deformation, so it can buffer the instantaneous adsorption force of the suction cup on the lens mold, reducing the possibility of resin overflow in the lens mold.

[0032] Therefore, the suction cup of this embodiment can be effectively applied to the pouring process of the lens mold, ensuring the pouring quality of the lens mold.

[0033] Referring to Figure 3 and Figure 4The buffer 2 includes an annular wall portion 21 and a snap ring portion 22. The annular wall portion 21 is installed on the peripheral side of the adsorption end of the main body 1, and the limit member 3 is installed on the inner side of the annular wall portion 21. The inner diameter of the annular wall portion 21 gradually increases in the direction away from the main body 1. The snap ring portion 22 is fixedly connected to one end of the annular wall portion 21 close to the main body 1, and the outer peripheral wall of the main body 1 is provided with a first slot 11, and the snap ring portion 22 is snapped into the first slot 11. Among them, the buffer 2 can be made of rubber material, and the annular wall portion 21 and the snap ring portion 22 can be made of one piece.

[0034] When the suction cup is in use, the annular wall portion 21 is used to abut against the side of the lens mold, and the shape design of the annular wall portion 21 facilitates the lens mold to push it to deform under the adsorption effect, so as to buffer the instantaneous adsorption force on the lens mold. When the lens mold abuts against the stopper 3, the annular wall portion 21 and the stopper 3 work together to enhance the adsorption force of the suction cup on the lens mold.

[0035] Among them, since the flexible annular wall portion 21 can produce a certain deformation, it can also adapt to some lens molds with curved surfaces, thereby improving the adaptability of the suction cup to lens molds with different surface shapes. In the prior art, for lens molds with different surface shapes, corresponding suction cups are usually required to be designed specifically.

[0036] It can be understood that the buffer member 2 mainly plays a role of buffering. In other embodiments, the inner diameter of the annular wall portion 21 can also be gradually reduced in the direction away from the body 1 or remain unchanged, as long as it can abut against the buffer lens mold.

[0037] Reference Figure 4 The end surface of the adsorption end of the body 1 is provided with a second slot 12 that matches the shape of the stopper 3, and the stopper 3 is snapped into the second slot 12. The stopper 3 is set as a torus, and the cross-sectional shape of the torus is circular. The torus is used to abut against the lens mold to limit the maximum displacement distance of the lens mold under adsorption, thereby ensuring that the lens mold can be accurately located at the casting position. It can be understood that in other embodiments, the stopper 3 can also be other shapes, such as a torus with an elliptical cross-sectional shape.

[0038] Reference Figure 1 The main body 1 is provided with an airflow channel, and the airflow channel includes a first channel 13 and a second channel 14 that are interconnected. The first channel 13 is arranged at the adsorption end, and the first channel 13 is trumpet-shaped. The main body 1 is provided with a thickened portion 15 on the periphery of the first channel 13. Since the first channel 13 is arranged in a trumpet shape, the thickness of the peripheral wall of the first channel 13 is inconsistent, and the thickened portion 15 can ensure the bearing capacity of the main body 1.

[0039] Reference Figure 3 and Figure 4, in this embodiment, the suction cup further includes an adapter rod 4 for communicating with a vacuum pumping device. The adapter rod 4 is inserted into the second channel 14 and is in communication with the first channel 13. After the vacuum pumping device is started, a vacuum environment can be formed in the air flow channel through the adapter rod 4 to complete the adsorption of the lens mold.

[0040] An embodiment of the present invention further provides an adsorption device, including the above-mentioned suction cup. It can be understood that the adsorption device provided with the above-mentioned suction cup can effectively adapt to the pouring process of lens mold processing, thereby improving the production efficiency of lenses and ensuring product quality.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A suction cup, characterized in that: The invention comprises a main body (1), a flexible buffer (2) and a hard stopper (3), wherein the main body (1) is provided with a suction end for sucking a lens mold, and the distance that the buffer (2) protrudes from the suction end is greater than the distance that the stopper (3) protrudes from the suction end, so that when the suction end sucks the lens mold, the lens mold compresses the buffer (2) and abuts against the stopper (3).

2. The suction cup according to claim 1, characterized in that The buffer component (2) comprises an annular wall portion (21) mounted on the peripheral side of the adsorption end of the body (1), and the limiting component (3) is mounted on the inner side of the annular wall portion (21).

3. The suction cup according to claim 2, characterized in that The inner diameter of the annular wall portion (21) gradually increases in a direction away from the main body (1).

4. The suction cup according to claim 2, characterized in that The buffer member (2) further comprises a snap ring portion (22) fixedly connected to one end of the annular wall portion (21) close to the main body (1); a first snap groove (11) is formed on the outer peripheral wall of the main body (1), and the snap ring portion (22) is snapped into the first snap groove (11).

5. The suction cup according to claim 1, characterized in that A second slot (12) matching the shape of the limiting member (3) is provided on the end surface side of the adsorption end of the body (1), and the limiting member (3) is snap-connected in the second slot (12).

6. The suction cup according to claim 5, characterized in that The limiting member (3) is configured as a circular ring, and the cross-sectional shape of the circular ring is circular.

7. The suction cup according to claim 1, characterized in that The main body (1) is provided with an air flow channel, and the air flow channel comprises a first channel (13) arranged at the adsorption end, and the first channel (13) is trumpet-shaped.

8. The suction cup according to claim 7, characterized in that The body (1) is provided with a thickened portion (15) on the outer periphery of the first channel (13).

9. The suction cup according to claim 7, characterized in that It also includes a transfer rod (4) for communicating with a vacuum extraction device, and the airflow channel also includes a second channel (14) communicating with the first channel (13), the transfer rod (4) is inserted into the second channel (14), and the transfer rod (4) is communicated with the first channel (13).

10. An adsorption device, characterized in that: Comprising the suction cup as described in any one of claims 1-9.

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