Vacuum forming mechanism of molding press
The vacuum forming mechanism of the molding machine creates a sealed space before mold forming, venting gas and solving the problems of lens oxidation and gas entrapment defects, thus achieving high-quality mold forming.
Patent Information
- Application Number
- CN202423246676.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing molding structures are performed in a non-vacuum environment, which leads to oxidation and gas inclusion defects in lens products.
A vacuum forming mechanism is adopted, which forms a sealed space through upper and lower vacuum hoods and a sealed box. After the gas is discharged, the mold is pressed and formed to avoid oxidation and gas entrapment defects.
A sealed structure is formed before mold forming to expel gas, avoid lens oxidation and gas entrapment defects, and improve molding quality.
Smart Images
Figure CN223607162U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of moulding press, especially relates to a vacuum forming mechanism of moulding press. BACKGROUND
[0002] Moulding forming is that glass product inside mould is heated to certain temperature, and mould is pressed tightly by moulding press to form. In the existing moulding forming structure, the mould is open structure, and moulding forming is carried out in non-vacuum environment, on the one hand, the surrounding oxygen can make the lens product oxidize, on the other hand, the lens forms, and it is easy to produce air inclusion defect.
[0003] Therefore, it is necessary to further innovate the existing moulding forming structure. UTILITY MODEL CONTENT
[0004] The utility model discloses a vacuum forming mechanism of moulding press to solve the technical problems of the prior art.
[0005] To realize the above-mentioned purpose, the utility model adopts the technical scheme that:
[0006] The vacuum forming mechanism of moulding press, including base frame, lower vacuum cover fixed on the inner bottom wall of base frame and upper heating block fixed on the inner top wall of base frame, the inside of lower vacuum cover is provided with lower heating block opposite to upper heating block, the bottom of base frame is provided with lower lifting module for driving lower heating block to do lifting motion,
[0007] Sealing box is fixed on the base frame, the upper vacuum cover matched with lower vacuum cover is slidably connected in the sealing box, the upper vacuum cover is matched with the inner chamber of sealing box, the top of upper vacuum cover is provided with through hole connected with sealing box,
[0008] The sealing box is provided with upper lifting module for driving upper vacuum cover to do lifting motion in the sealing box, the lower heating block is fixed with lower connecting column between lower lifting module, and the lower vacuum cover is provided with guide hole matched with connecting column.
[0009] Further, the pressure sensor is connected between the lower connecting column and the lower lifting module.
[0010] Further, the lower lifting module includes lower lifting assembly, lower sliding base fixed on the base frame, guide rail fixed on the sliding base and sliding block slidably connected on the guide rail, the sliding block is fixed with lower sliding seat, the lower lifting assembly is connected on the lower sliding seat, and the connecting column is fixed on the lower sliding seat.
[0011] Further, the up-down module comprises a cylinder fixed at one end on the upper sealing box, a sliding sleeve fixed on the upper sealing box and a sliding shaft slidingly connected in the sliding sleeve; one end of the sliding shaft is fixed on the cylinder and the other end of the sliding shaft extends into the sealing box and is fixedly connected with the upper vacuum cover.
[0012] After the above structure, the beneficial effects of the present application are as follows: after the mold is moved to the lower heating block, the up-down module drives the upper vacuum cover to move downward, so that the edge of the upper vacuum cover is attached to the edge of the lower vacuum cover, and the sealing box, the upper vacuum cover and the lower vacuum cover form a sealed space to enclose the mold; then the air is discharged from the sealed space formed by the sealing box, the upper vacuum cover and the lower vacuum cover through the valve body (for some products, nitrogen can be filled into the valve body after vacuumizing). Then, the lower up-down module drives the lower connecting column, the lower heating block and the mold to move upward, so that the mold is pressed tightly on the upper heating block through the lower heating block, so that the lens in the mold is formed; in this structure, the gas can be discharged after the mold is formed by molding and the sealed structure is formed, so that the lens product can be prevented from being oxidized during molding, and on the other hand, the air inclusion defect generated during molding of the lens can be avoided. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 is the first perspective view of the present application;
[0014] Fig. 2 is the first perspective view of the present application;
[0015] BRIEF DESCRIPTION OF DRAWINGS
[0016] 1, cylinder; 2, sliding shaft; 3, sliding sleeve; 4, upper sealing box; 401, valve body;
[0017] 5, upper vacuum cover; 6, base frame; 7, mold; 8, lower vacuum cover; 9, lower sliding base;
[0018] 10, lower sliding seat; 11, lower lifting assembly; 12, pressure sensor; 13, lower heating block;
[0019] 14, upper heating block; 15, lower connecting column; 16, sliding block. DETAILED DESCRIPTION
[0020] The present application will be further described below with reference to the drawings.
[0021] As Figs. 1-2The utility model discloses a vacuum forming mechanism of mould pressing machine, including base frame 6, fixed on the lower vacuum cover 8 of base frame 6 inner bottom wall and fixed on the upper heating block 14 of base frame 6 inner top wall, the inside of lower vacuum cover 8 is provided with the lower heating block 13 of with upper heating block 14 directly opposite, the bottom of base frame 6 is provided with the lower lifting module for driving lower heating block 13 to do the lifting movement,
[0022] The base frame 6 is fixed with a sealed box 4, the sealed box 4 is slidably connected with the upper vacuum cover 5 matched with the lower vacuum cover 8, the upper vacuum cover 5 is matched with the inner cavity of the sealed box 4, the top of the upper vacuum cover 5 is provided with a through hole connected with the sealed box 4, and the through hole is used to connect the upper vacuum cover 5 and the sealed box 4.
[0023] The sealed box 4 is provided with an upper lifting module for driving the upper vacuum cover 5 to move up and down in the sealed box 4, the lower heating block 13 is fixed with a lower connecting column 15 between the lower lifting module, and the lower vacuum cover 8 is provided with a guide hole matched with the connecting column 15.
[0024] The top of the sealed box 4 is connected with a valve body 401, the valve body 401 is connected with an external vacuum equipment, the through hole in the top of the upper vacuum cover 5 is connected with the inner cavity of the sealed box 4, a sealing structure is formed between the edge of the upper vacuum cover 5 and the inner side wall of the sealed box 4, the lower heating block 13 and the upper heating block 14 are both heaters with electric heating needles, and there is no substantial difference from the prior art, so the details are not described.
[0025] The lower heating block 13 is fixed with a lower connecting column 15 between the lower lifting module, and the lower vacuum cover 8 is provided with a guide hole matched with the connecting column 15, the guide hole is sealed through the connecting column 15, so that the gas in the lower vacuum cover 8 cannot enter or exit through the gap between the guide hole and the connecting column 15.
[0026] After the mold is moved to the lower heating block 13, the upper lifting module drives the upper vacuum cover 5 to move downward, so that the edge of the upper vacuum cover 5 is attached to the edge of the lower vacuum cover 8, the sealed box 4, the upper vacuum cover 5 and the lower vacuum cover 8 form a sealed space to enclose the mold 7, then the air in the sealed space formed by the sealed box 4, the upper vacuum cover 5 and the lower vacuum cover 8 is discharged from the valve body 401 (for some product forming, nitrogen can be filled from the valve body 401 after vacuumizing), then the lower lifting module drives the lower connecting column 15, the lower heating block 13 and the mold 7 to move upward, the mold 7 is pressed on the upper heating block 14 through the lower heating block 13, so that the lens in the mold 7 is formed, in the structure, the gas can be discharged after forming a sealed structure before the mold 7 is molded, the lens product can be prevented from oxidizing during the molding, and on the other hand, the air inclusion defect generated during the lens molding can be avoided.
[0027] As a preferred mode of the utility model, the lower connecting column 15 is connected with the lower lifting module and has a pressure sensor 12; the pressure sensor 12 has no essential difference from the prior art, so it is not described in detail; the pressure sensor 12 is used to measure the pressure received by the lower heating block 13, and the pressure received by the mold 7 is calculated.
[0028] As a preferred mode of the utility model, the lower lifting module comprises a lower lifting assembly 11, a lower sliding base 9 fixed on the base frame 6, a guide rail fixed on the sliding base 9 and a sliding block 16 slidingly connected on the guide rail; the sliding block 16 is fixed with a lower sliding seat 10; the lower lifting assembly 11 is connected on the lower sliding seat 10; the connecting column 15 is fixed on the lower sliding seat 10;
[0029] The lower lifting assembly 11 is a lifting device and has no essential difference from the prior art, so it is not described in detail; the lower lifting assembly 11 is fixed on the external rack; the lower lifting assembly 11 can drive the lower sliding seat 10 and the connecting column 15 to move up and down along the guide rail.
[0030] As a preferred mode of the utility model, the upper lifting module comprises a cylinder 1 fixed at one end on the upper sealing box 4, a sliding sleeve 3 fixed on the upper sealing box 4 and a sliding shaft 2 slidingly connected in the sliding sleeve 3; the sliding shaft 2 is fixed at one end on the cylinder 1 and at the other end; the other end of the sliding shaft 2 extends into the sealing box 4 and is fixedly connected with the upper vacuum cover 5; the cylinder 1 drives the sliding shaft 2 to move up and down in the sliding sleeve 3, so that the upper vacuum cover 5 slides in the upper sealing box 4, and the lifting movement of the upper vacuum cover 5 is realized.
[0031] The above is only a preferred embodiment of the utility model, so equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application range are included in the utility model patent application range.
Claims
1. A vacuum forming mechanism of a press machine, characterized by: The utility model relates to a vacuum coating machine, including base frame (6), the lower vacuum cover (8) of fixed in base frame (6) inner bottom wall and the upper heating block (14) of fixed in base frame (6) inner top wall, the inside of lower vacuum cover (8) is provided with and the lower heating block (13) of upper heating block (14) is opposite, the bottom of base frame (6) is provided with the lower lifting module for driving lower heating block (13) to do the lifting motion, The base frame (6) is fixed with the sealed box (4), the sealed box (4) is slidably connected with the upper vacuum cover (5) matched with the lower vacuum cover (8), the upper vacuum cover (5) is matched with the inner chamber of sealed box (4), the top of upper vacuum cover (5) is provided with the through -hole of sealed box (4) intercommunication, The sealed box (4) is provided with the upper lifting module for driving upper vacuum cover (5) to do the lifting motion in sealed box (4), the lower heating block (13) is fixed with the lower lifting module between the connecting column (15), the lower vacuum cover (8) is provided with the guide hole matched with the connecting column (15).
2. A vacuum forming mechanism for a press machine according to claim 1, wherein: The lower connecting column (15) is connected with the pressure sensor (12) between the lower lifting module.
3. A vacuum forming mechanism for a press machine as defined in claim 1, wherein: The lower lifting module includes the lower lifting assembly (11), the lower sliding base (9) fixed on the base frame (6), the guide rail fixed on the sliding base (9) and the sliding block (16) slidably connected on the guide rail, the lower sliding seat (10) is fixed on the sliding block (16), the lower lifting assembly (11) is connected on the lower sliding seat (10), and the connecting column (15) is fixed on the lower sliding seat (10).
4. The vacuum forming mechanism of a press machine according to claim 1, wherein: The upper lifting module includes the air cylinder (1) fixed on one end of the upper sealed box (4), the sliding sleeve (3) fixed on the upper sealed box (4) and the sliding shaft (2) slidably connected in the sliding sleeve (3), one end of the sliding shaft (2) is fixed on the air cylinder (1) the other end, and the other end of the sliding shaft (2) is fixedly connected with the upper vacuum cover (5) after extending into the sealed box (4).