Four-hole ceramic integral sleeve

Abstract

The utility model relates to a four-hole ceramic integral sleeve which comprises a sleeve main body, the sleeve main body is a four-hole ceramic integral sleeve; a four-hole ceramic integral gasket is arranged below the sleeve main body; an upper mold core, a lower mold core and a tungsten steel gasket are sequentially arranged in the sleeve main body; the upper mold core is placed on the lower mold core; the lower die core is placed on the tungsten steel gasket; the tungsten steel gasket is placed on the four-hole ceramic integral gasket; an outer diameter limiting circular ring is arranged between the upper mold core and the lower mold core; a mold pressing lens to be subjected to mold pressing forming is placed in a cavity of the lower mold core; the mould pressing lens penetrates through the outer diameter limiting circular ring to be placed; a fixing rod is inserted into the four-hole ceramic integral gasket from a bottom hole; and a bolt for tightening the fixing rod is inserted into the sleeve main body from the hole above the sleeve main body. Compared with the prior art, the utility model has the advantages of good air tightness, high forming precision, simple structure, uniform pressure and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of aspheric molding of optical lenses, in particular to a four-hole ceramic integral sleeve. Background Art

[0002] Aspheric glass molding is a technology that first heats and softens the glass material to a certain degree, and then applies a certain pressure to a high-precision forming mold to deform it into an aspheric shape. The existing molded lens mold is composed of an upper mold core, a lower mold core, a limiting outer diameter ring, a tungsten steel gasket, a ceramic sleeve and a middle mold core. During the molding process, the preform or small ball is directly placed on the mold core surface of the lower mold core, and the lens preform or small ball is softened by high temperature and deformed to the mold core shape by pressure to become the desired molded lens. Due to the combination of multiple molds, the ceramic sleeve is placed in the hole of the middle mold core with precision tolerance requirements. The airtightness required for the molded lens to be deformed to the mold core shape under pressure is not stable enough. The molded lens may occasionally be poorly molded or the molding surface accuracy is poor. In severe cases, it may even cause the molded lens to explode and the ceramic sleeve to be scrapped. Utility Model Content

[0003] The purpose of the utility model is to provide a four-hole ceramic integral sleeve in order to overcome the defects of the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A four-hole ceramic integral sleeve comprises a sleeve body; the sleeve body is a four-hole ceramic integral sleeve; a four-hole ceramic integral gasket is arranged below the sleeve body; an upper mold core, a lower mold core and a tungsten steel gasket are arranged in sequence in the sleeve body; the upper mold core is placed on the lower mold core; the lower mold core is placed on the tungsten steel gasket; the tungsten steel gasket is placed on the four-hole ceramic integral gasket; a limited outer diameter ring is arranged between the upper mold core and the lower mold core; a molded lens to be molded is placed in the cavity of the lower mold core; the molded lens is placed through the limited outer diameter ring; a fixing rod is inserted from the bottom hole of the four-hole ceramic integral gasket; a bolt for tightening the fixing rod is inserted from the upper hole of the sleeve body.

[0006] Furthermore, the bolt is sleeved with a first flat washer, a spring washer and a second flat washer in sequence from top to bottom.

[0007] Furthermore, the bolt is an M4 cylindrical head hexagon socket bolt.

[0008] Furthermore, the first flat washer and the second flat washer are Flat washers of type.

[0009] Furthermore, the spring washer is an M4 spring washer.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model configures the ceramic sleeve as a four-hole ceramic integral sleeve, removes the middle meat tube, adds fixing rods and bolts to tightly fit the four-hole ceramic integral gasket with the bottom of the four-hole ceramic integral sleeve, and can make the airtightness required for the molded lens more stable during molding, thereby avoiding the molded lens from having insufficient airtightness and uneven pressure, and improving the molding accuracy. The problems of insufficient airtightness and uneven pressure can be well solved, thereby improving the lens molding yield rate, effectively reducing the scrapping of lenses and ceramic sleeves, and reducing production costs. In addition, the four-hole ceramic integral sleeve has the advantages of simple structure, easy operation, stable performance and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the structural decomposition provided by the utility model;

[0013] Figure 2 This is an assembly schematic diagram provided by the utility model.

[0014] The numbers in the figure are as follows:

[0015] 1. Bolt; 2. First flat washer; 3. Spring washer; 4. Second flat washer; 5. Upper die core; 6. Sleeve body; 7. Molded lens; 8. Outer diameter limiting ring; 9. Lower die core; 10. Tungsten steel gasket; 11. Four-hole ceramic integral gasket; 12. Fixing rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example

[0019] like Figure 1 and 2As shown, a four-cavity ceramic integral sleeve comprises a sleeve body 1; the sleeve body 6 is a four-cavity ceramic integral sleeve; a four-cavity ceramic integral gasket 11 is arranged below the sleeve body 6; an upper mold core 5, a lower mold core 9 and a tungsten steel gasket 10 are arranged in sequence in the sleeve body 6; the upper mold core 5 is placed on the lower mold core 9; the lower mold core 9 is placed on the tungsten steel gasket 10; the tungsten steel gasket 10 is placed on the four-cavity ceramic integral gasket 11; a limited outer diameter ring 8 is arranged between the upper mold core 5 and the lower mold core 9; a molded lens 7 to be molded is placed in the cavity of the lower mold core 9; The molded lens 7 is placed through the outer diameter limiting ring 8, and its size after molding is limited by the outer diameter limiting ring 8; the four-hole ceramic integral gasket 11 has a fixing rod 12 inserted from the bottom hole; the sleeve body 6 has a bolt 1 for tightening the fixing rod 12 inserted from the upper hole, which is an M4 cylindrical head hexagonal bolt that can tighten the fixing rod 12, so that the four-hole ceramic integral gasket 11 is tightly matched with the bottom of the sleeve body 6, and the air tightness required by the molded lens 7 can be made more stable during molding, thereby avoiding the molded lens 7 from having insufficient air tightness and uneven pressure, improving molding accuracy, and improving the lens molding yield rate. The bolts 1 are sequentially sleeved from top to bottom. Model No. 1 flat washer 2, M4 spring washer 3 and The second flat washer of model 4 is convenient for tightening and has better sealing.

[0020] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A four-hole ceramic integral sleeve, characterized in that: The invention comprises a sleeve body (6); the sleeve body (6) is a four-hole ceramic integral sleeve; a four-hole ceramic integral gasket (11) is arranged below the sleeve body (6); an upper die core (5), a lower die core (9) and a tungsten steel gasket (10) are arranged in sequence in the sleeve body (6); the upper die core (5) is placed on the lower die core (9); the lower die core (9) is placed on the tungsten steel gasket (10); the tungsten steel gasket (10) is placed on the four-hole ceramic integral sleeve. The invention relates to a ceramic integral gasket (11); a limited outer diameter ring (8) is arranged between the upper mold core (5) and the lower mold core (9); a molded lens (7) to be molded is placed in the mold cavity of the lower mold core (9); the molded lens (7) is placed through the limited outer diameter ring (8); a fixing rod (12) is inserted into the bottom hole of the four-hole ceramic integral gasket (11); and a bolt (1) for tightening the fixing rod (12) is inserted into the upper hole of the sleeve body (6).

2. A four-hole ceramic integral sleeve according to claim 1, characterized in that: The bolt (1) is sleeved with a first flat washer (2), a spring washer (3) and a second flat washer (4) in sequence from top to bottom.

3. The four-hole ceramic integral sleeve according to claim 1, characterized in that: The bolt (1) is an M4 cylindrical head hexagon socket bolt.

4. The four-hole ceramic integral sleeve according to claim 2, characterized in that: The first flat washer (2) and the second flat washer (4) are Flat washers of type.

5. The four-hole ceramic integral sleeve according to claim 2, characterized in that: The spring washer (3) is an M4 spring washer.

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