Multi-hole suction cup jig with guide structure

Abstract

The utility model relates to the technical field of mould pressing lens grabbing, in particular to a multi-cavity suction cup jig with a guide structure, which comprises a suction nozzle transition plate, a plurality of suction cups are arranged on the upper surface of the suction nozzle transition plate, and a plurality of vacuum connector holes matched with the suction cups are formed in the suction nozzle transition plate. A guide sleeve is further arranged on the upper surface of the suction nozzle transition plate and provided with an aligning hole matched with the suction cup, and one end of the suction cup stretches into the aligning hole and then stretches out of the upper surface of the guide sleeve. And the sucking disc is in clearance fit with the aligning hole. When the utility model is used, the suction cups are guided to be aligned or straightened through the aligning holes, and the suction cups are in clearance fit with the aligning holes, so that the problem that the suction cups are inclined due to a large number of suction cups is avoided, and the phenomenon that the lenses have indentations due to the inclination of the suction cups is avoided; therefore, the production efficiency is improved and the production cost of the lens is reduced in the pre-process of mould pressing of the lens.

Description

Technical Field

[0001] The utility model relates to the technical field of grabbing molded lenses, in particular to a multi-hole suction cup fixture with a guide structure. Background Art

[0002] When manufacturing optical glass lenses, a molding process is usually used to form a glass preform into an optical glass lens; specifically, the glass preform is placed in a hot pressing mold, and the hot pressing mold is heated and pressurized by a hot pressing device to deform the glass preform to form an optical glass lens with two aspherical surfaces; finally, the finished lens is taken out from the upper mold by a suction cup mechanism.

[0003] If the number of suction cups in the suction cup mechanism is small, the tilted suction cup will be automatically corrected when the suction cup contacts the upper mold core; but as the number of suction cups increases, the pressure of the suction cup on the lens will be too large, resulting in indentations on the lens, so the number of holes in the existing suction cup mechanism is generally within 6. The number of holes in the suction cup mechanism restricts the production efficiency and production cost of molded lenses.

[0004] How to ensure that the suction cup does not tilt and to improve the production efficiency and reduce the production cost of the molded lens by increasing the number of suction cup mechanism holes has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The utility model aims to provide a multi-hole suction cup fixture with a guiding structure which can prevent the suction cup from tilting in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model describes a multi-hole suction cup fixture with a guiding structure, comprising a nozzle transition plate, the upper surface of which is provided with a plurality of suction cups, the nozzle transition plate being provided with a plurality of vacuum connection holes matching the suction cups; the upper surface of the nozzle transition plate is also provided with a guide sleeve, the guide sleeve being provided with a return hole matching the suction cup, one end of the suction cup being inserted into the return hole and then extending out of the upper surface of the guide sleeve; there is a clearance fit between the suction cup and the return hole.

[0008] Furthermore, the suction cup consists of a PEEK seamless suction cup and an accordion suction cup; a threaded joint is provided at one end of the accordion suction cup, and the threaded joint is threadedly connected to the connecting hole of the suction nozzle transition plate; the other end of the accordion suction cup is connected to the PEEK seamless suction cup; one end of the PEEK seamless suction cup extends out from the upper surface of the guide sleeve.

[0009] Furthermore, the number of the suction cups is sixteen; twelve of them are outer suction cups and four are inner suction cups; the twelve outer suction cups are evenly distributed in a ring shape on the outer circle of the upper surface of the nozzle transition plate; the four inner suction cups are evenly distributed in a ring shape on the inner circle of the upper surface of the nozzle transition plate.

[0010] Further, the nozzle transition plate is provided with an outer nozzle connecting hole matching the outer suction cup, and the nozzle transition plate is provided with an inner nozzle connecting hole matching the inner suction cup; the nozzle transition plate is provided with an outer vacuum joint hole matching the outer nozzle connecting hole, and the nozzle transition plate is provided with an inner vacuum joint hole matching the inner nozzle connecting hole; the threaded joint of the outer suction cup is threadedly connected to the outer nozzle connecting hole, and the threaded joint of the inner suction cup is threadedly connected to the inner nozzle connecting hole; the outer suction cup is connected and communicated with the outer vacuum joint hole through the outer nozzle connecting hole, and the inner suction cup is connected and communicated with the inner vacuum joint hole through the inner nozzle connecting hole.

[0011] Furthermore, the guide sleeve is provided with a plurality of sleeve mounting holes, the nozzle transition plate is provided with a plurality of mounting screw holes matching the sleeve mounting holes, and one end of the bolt is inserted into the sleeve mounting hole and threadedly connected with the mounting screw hole.

[0012] After adopting the above structure, the beneficial effects of the utility model are as follows: the multi-hole suction cup fixture with a guiding structure described in the utility model includes a nozzle transition plate, the upper surface of which is provided with a plurality of suction cups, and the nozzle transition plate is provided with a plurality of vacuum joint holes matching the suction cups; the upper surface of the nozzle transition plate is also provided with a guide sleeve, and the guide sleeve is provided with a return hole matching the suction cup, and one end of the suction cup is inserted into the return hole and then extends out of the upper surface of the guide sleeve; there is a clearance fit between the suction cup and the return hole. When using the utility model, the suction cup is guided to return or straighten through the return hole, and the problem of the suction cup being skewed due to a large number of suction cups is avoided by setting a clearance fit between the suction cup and the return hole, thereby preventing the lens from having indentations due to the skew of the suction cup; and thus helping to improve production efficiency and reduce lens production costs in the pre-molding process of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 It is a first-perspective exploded stereogram of the utility model and the upper die core (the guide sleeve is not shown);

[0015] Figure 3 It is an exploded stereogram of the utility model and the upper mold core from a second perspective (the guide sleeve is not shown);

[0016] Figure 4 is a stereogram of the guide sleeve;

[0017] Description of the drawing reference numerals:

[0018] 1. Upper mold core; 2. Lens; 3. Nozzle transition plate; 3-1. Outer vacuum joint hole; 3-2. Inner vacuum joint hole;

[0019] 3-3. Outer nozzle connection hole; 3-4. Mounting hole;

[0020] 41. Outer suction cup; 42. Inner suction cup;

[0021] 4-1. PEEK traceless suction cup; 4-2. Bellows suction cup; 4-2a. Threaded joint;

[0022] 5. Guide sleeve; 5-1. Sleeve mounting hole; 5-2. Return hole. Detailed implementation mode

[0023] The present utility model will be further described below with reference to the accompanying drawings.

[0024] As Figures 1 to 4 shown, a multi-cavity suction cup fixture with a guiding and rectifying structure according to the present utility model includes a nozzle transition plate 3. The upper surface of the nozzle transition plate 3 is provided with a plurality of suction cups, and the nozzle transition plate 3 is provided with a plurality of vacuum joint holes matching the suction cups; one end of the vacuum joint hole is connected and communicated with the suction cup, and the other end of the vacuum joint hole is externally connected to a vacuum air source to provide a negative pressure air source for the suction cup, so that the suction cup can suck the lens.

[0025] The upper surface of the nozzle transition plate 3 is further provided with a guide sleeve 5. The guide sleeve 5 is provided with a return hole 5-2 matching the suction cup. One end of the suction cup extends into the return hole 5-2 and then extends out of the upper surface of the guide sleeve 5; a clearance fit is formed between the suction cup and the return hole 5-2.

[0026] As Figure 1 shown, as a preferred mode of the present utility model, the suction cup is composed of a PEEK traceless suction cup 4-1 and a bellows suction cup 4-2, so that the suction cup forms a composite suction cup. Among them, the PEEK traceless suction cup 4-1 can further reduce the indentation generated when sucking the lens; the bellows suction cup 4-2 has better resilience. Under the guiding action of the return hole 5-2, the bellows suction cup 4-2 can better rectify the whole suction cup and prevent indentation on the lens, ensuring that each suction cup will not be skewed.

[0027] One end of the bellows suction cup 4-2 is provided with a threaded joint 4-2a, and the threaded joint 4-2a is threadedly connected to the connection hole of the nozzle transition plate 3. The bellows suction cup 4-2 is connected and communicated with the connection hole, and the connection hole is connected and communicated with the vacuum joint hole.

[0028] The other end of the bellows suction cup 4-2 is connected and communicated with the PEEK traceless suction cup 4-1; one end of the PEEK traceless suction cup 4-1 extends out of the upper surface of the guiding sleeve 5, facilitating the PEEK traceless suction cup 4-1 to directly suck the lens. The bellows suction cup 4-2 and the PEEK traceless suction cup 4-1 can be connected by an integral molding method or by glue bonding. The connection and fixing method has no essential difference from the prior art, so it will not be elaborated here one by one.

[0029] As Figures 2 to 4 shown, as a preferred embodiment of the present invention, the number of the suction cups is sixteen; twelve of them are outer suction cups 41 and four are inner suction cups 42. In order to better and reasonably arrange the suction cups to achieve both convenient installation and ensure the suction force of the suction cups, the twelve outer suction cups 41 of the present invention are evenly distributed in a circular pattern on the outer ring of the upper surface of the nozzle transition plate 3; the four inner suction cups 42 of the present invention are evenly distributed in a circular pattern on the inner ring of the upper surface of the nozzle transition plate 3; that is, the outer suction cups 41 and the inner suction cups 42 are distributed in a staggered manner. It should be noted that: as Figure 2 shown, the above-mentioned outer ring and inner ring are named according to the positions of the centers of the outer suction cups 41 and the inner suction cups 42. The outer ring and the inner ring here are only named to express and illustrate the staggered distribution of the outer suction cups 41 and the inner suction cups 42.

[0030] Of course, after adopting the guiding sleeve 5 and the composite suction cup of the present invention, the number of the suction cups can be more than sixteen or less than sixteen. The specific number mainly depends on the user's own needs.

[0031] As a preferred embodiment of the present invention, the nozzle transition plate 3 is provided with an outer nozzle connection hole 3-3 matching the outer suction cup 41, and the nozzle transition plate 3 is provided with an inner nozzle connection hole (not shown in the figure) matching the inner suction cup 42. The nozzle transition plate 3 is provided with an outer vacuum joint hole 3-1 matching the outer nozzle connection hole 3-3, and the nozzle transition plate 3 is provided with an inner vacuum joint hole 3-2 matching the inner nozzle connection hole.

[0032] After the threaded joint 4-2a of the outer suction cup 41 is threadedly connected to the outer nozzle connection hole 3-3, the outer suction cup 41 is connected and communicated with the outer vacuum joint hole 3-1 through the outer nozzle connection hole 3-3.

[0033] After the threaded joint 4-2a of the inner suction cup 42 is threadedly connected to the inner nozzle connection hole; the inner suction cup 42 is connected and communicated with the inner vacuum joint hole 3-2 through the inner nozzle connection hole.

[0034] The outer vacuum joint hole 3-1 and the inner vacuum joint hole 3-2 are distributed in a staggered manner, which is convenient for installation and can ensure that each air flow path is not affected by each other.

[0035] As a preferred embodiment of the present utility model, the guiding sleeve 5 is provided with a plurality of sleeve mounting holes 5-1, and the nozzle transition plate 3 is provided with a plurality of mounting screw holes 3-4 that are matched with the sleeve mounting holes 5-1. One end of a bolt extends into the sleeve mounting hole 5-1 and is threadedly connected to the mounting screw hole 3-4, thereby fixedly connecting the guiding sleeve 5 and the nozzle transition plate 3 together.

[0036] When the present utility model is in use, the suction cup is guided to return to the correct position through the return hole. By setting a clearance fit between the suction cup and the return hole 5-2, the problem of the suction cup being skewed due to the large number of suction cups is avoided, thereby eliminating the phenomenon of the lens having indentation marks caused by the skewed suction cup.

[0037] The suction cup is composed of a PEEK traceless suction cup and a bellows suction cup, making the suction cup form a composite suction cup; the PEEK traceless suction cup can further reduce the indentation marks generated when sucking the lens, and the bellows suction cup has better resilience. Under the guiding action of the return hole, the bellows suction cup can better return the entire suction cup to the correct position, ensuring that each suction cup will not be skewed.

[0038] Furthermore, it helps to improve the production efficiency in the pre-process of molding lenses and reduce the production cost of lenses.

[0039] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A multi-cavity suction cup jig with a guiding structure, comprising a nozzle transition plate (3). The upper surface of the nozzle transition plate (3) is provided with a plurality of suction cups, and the nozzle transition plate (3) is provided with a plurality of vacuum joint holes matching the suction cups; It is characterized in that: The upper surface of the nozzle transition plate (3) is further provided with a guiding sleeve (5). The guiding sleeve (5) is provided with a returning hole (5-2) matching the suction cup. One end of the suction cup extends into the returning hole (5-2) and then extends out of the upper surface of the guiding sleeve (5). There is a clearance fit between the suction cup and the returning hole (5-2).

2. The multi-cavity suction cup jig with a guiding structure according to claim 1, characterized in that: The suction cup is composed of a PEEK traceless suction cup (4-1) and a bellows suction cup (4-2); One end of the bellows suction cup (4-2) is provided with a threaded joint (4-2a), and the threaded joint (4-2a) is threadedly connected to the connecting hole of the nozzle transition plate (3); The other end of the bellows suction cup (4-2) is connected and communicated with the PEEK traceless suction cup (4-1). One end of the PEEK traceless suction cup (4-1) extends out of the upper surface of the guiding sleeve (5).

3. The multi-cavity suction cup fixture with a guiding structure according to claim 1, characterized in that: The number of the suction cups is sixteen, including twelve outer suction cups (41) and four inner suction cups (42); The twelve outer suction cups (41) are annularly and evenly distributed on the outer circle of the upper surface of the nozzle transition plate (3); The four inner suction cups (42) are annularly and evenly distributed on the inner circle of the upper surface of the nozzle transition plate (3).

4. The multi-cavity suction cup jig with a guiding structure according to claim 3, characterized in that: The nozzle transition plate (3) is provided with outer nozzle connection holes (3-3) matching the outer suction cups (41), and the nozzle transition plate (3) is provided with inner nozzle connection holes matching the inner suction cups (42); The nozzle transition plate (3) is provided with outer vacuum joint holes (3-1) matching the outer nozzle connection holes (3-3), and the nozzle transition plate (3) is provided with inner vacuum joint holes (3-2) matching the inner nozzle connection holes; The threaded joint (4-2a) of the outer suction cup (41) is threadedly connected to the outer nozzle connection hole (3-3), and the threaded joint (4-2a) of the inner suction cup (42) is threadedly connected to the inner nozzle connection hole; The outer suction cup (41) is connected and communicated with the outer vacuum joint hole (3-1) through the outer nozzle connection hole (3-3), and the inner suction cup (42) is connected and communicated with the inner vacuum joint hole (3-2) through the inner nozzle connection hole.

5. A multi-cavity suction cup jig with a guiding structure according to claim 1, characterized in that: The guiding sleeve (5) is provided with a plurality of sleeve mounting holes (5-1), and the nozzle transition plate (3) is provided with a plurality of mounting screw holes (3-4) matching the sleeve mounting holes (5-1). One end of a bolt extends into the sleeve mounting hole (5-1) and then is threadedly connected to the mounting screw hole (3-4).

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