CN110744784B

CN110744784B - Lens mould gating system

Info

Publication number: CN110744784B
Application number: CN201911101607.8A
Authority: CN
Inventors: 熊旭斌
Original assignee: Ningbo Xinsheng Industrial Design Co ltd
Current assignee: Jiangsu Yoli Optical Glasses Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2021-06-15
Anticipated expiration: 2039-11-12
Also published as: CN110744784A

Abstract

The invention discloses an optical lens mould casting system which comprises a first bottom plate fixed at the top end of a base, wherein a support plate is fixedly connected to the top end of the first bottom plate. According to the invention, through the second liquid pump, the liquid outlet on the round rod is utilized in combination with the expansion and contraction of the hydraulic rod, the liquid raw material with a certain temperature is injected into the shaping cavity between the upper die and the lower die, the hydraulic rod is utilized to generate downward pressure on the upper die, the tightness and the fit degree between the upper die and the lower die are improved, the upper die and the lower die cannot deviate easily, and after the raw material pouring is completed, the hydraulic rod can be contracted to enable the side wall at the bottom end of the round rod and the side wall at the top end of the upper die to form a whole, so that the fold rate of the surface of the formed optical lens is reduced, and the optical lens is cooled by adopting the cooling device, so that the optical lens can be separated from the die easily, and can be taken out by a worker conveniently.

Description

Lens mould gating system

Technical Field

The invention relates to the technical field of manufacturing of spectacle lenses, in particular to a lens mold pouring system.

Background

The lens is made of transparent materials with one or more curved surfaces, which are made of optical materials such as glass or resin, and is often assembled with a spectacle frame to form spectacles for correcting the vision of a user and obtaining a clear vision field.

At present, resin materials or glass materials are mainly used for the spectacle lenses which are seen in a large number in daily life, and the spectacle lenses made of the resin materials are favored by consumers due to the advantages of light weight, difficult breakage, strong antifogging property and the like. When a spectacle lens is produced from a resin material or a glass material, three processing steps of substrate molding, hardening and coating packaging are required.

The method comprises the following steps of preparing a liquid raw material, pouring the liquid raw material into a lens mold by adopting a manual injection mode, sealing the liquid raw material, carrying out extrusion molding, ejecting the liquid raw material after cooling, and then entering the next processing procedure. If the lens mold is directly ejected by adopting a common ejection mechanism, cracks are easily generated on the surface of the lens, and the yield of the product is reduced, so that the invention of a lens mold pouring system is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, such as: the existing lens mold is low in sealing performance, and after the compression molding of the lens is completed, the liquid raw material is easy to adhere to the inner side wall of the mold due to the fact that the liquid raw material has a certain temperature, and if the liquid raw material is directly ejected out by a common ejection mechanism, cracks are easily caused to appear on the surface of the lens, and the defective rate of products is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a lens mold pouring system comprises a first bottom plate fixed at the top end of a base, wherein a support plate is fixedly connected to the top end of the first bottom plate, a top plate is fixedly connected to the top end of the support plate, a lower mold is arranged on one side of the support plate, a hydraulic rod is fixedly connected to the bottom end of the top plate, an upper mold is arranged at the top end of the lower mold, a first support device is fixedly connected to the bottom end of the hydraulic rod, a round rod with a hollow structure is fixedly connected to the bottom end of the first support device, a cavity is formed in the round rod, a heat-resistant telescopic pipe is arranged at the top end of the round rod, the heat-resistant telescopic pipe is inserted in the upper side wall of the round rod in a sealing mode and communicated with the cavity, a liquid injection device is fixedly connected to one end, away from the cavity, of the heat-resistant telescopic pipe penetrates through the top end of the upper mold, the round rod is, liquid storage cavities are formed in the upper die and the lower die, a second guide pipe is fixedly connected to the side wall of one end of each liquid storage cavity, and a cooling device is fixedly connected to one end, far away from the liquid storage cavities, of the second guide pipe.

Preferably, the first supporting device comprises a fixed column, a circular ring is arranged below the fixed column, the fixed column is fixedly connected with the lower side wall of the hydraulic rod, a vertical rod is fixedly connected to the bottom end of the fixed column, two cross rods are symmetrically arranged on the side walls of two sides of the vertical rod, one end, away from the vertical rod, of each cross rod is fixedly connected with the inner side wall of the circular ring, two L-shaped rods are symmetrically arranged on the outer side wall of the circular ring, and the bottom ends of the L-shaped rods are fixedly connected with the outer side wall of the circular rod.

Preferably, the liquid injection device comprises a second liquid pumping pump, a second bottom plate is fixedly connected to the side wall of the support plate far away from one side of the hydraulic rod, the second liquid pumping pump is fixedly connected with the upper side wall of the second bottom plate, a liquid storage tank is arranged on one side of the second liquid pumping pump far away from the support plate, the liquid storage tank is fixedly connected with the upper side wall of the base, a third guide pipe is connected between the liquid storage tank and the second liquid pumping pump, a flow meter is arranged on the third guide pipe, and one end, far away from the round rod, of the heat-resistant telescopic pipe is communicated with.

Preferably, the cooling device comprises a third bottom plate fixed on the side wall of the base, the top end of the third bottom plate is fixedly connected with an insulation can, one side of the insulation can close to the base is provided with a first liquid pumping pump, a first conduit is connected between the first liquid pumping pump and the insulation can, the output end of the first liquid pumping pump is in threaded connection with a three-way pipe, and one end, far away from the liquid storage cavity, of each of the two conduits is connected with the three-way pipe.

Preferably, the bottom end of the lower die is fixedly connected with a T-shaped sliding block, a T-shaped sliding groove with an upward opening is formed in the first bottom plate, the T-shaped sliding block is connected in the T-shaped sliding groove in a sliding mode, a first fixing screw is arranged on one side of the T-shaped sliding block, a plurality of fixing screw holes are formed in the T-shaped sliding groove along the sliding direction of the T-shaped sliding block, and the first fixing screw is fixedly installed in the fixing screw holes.

Preferably, the side wall of the fixed column is rotatably connected with a semicircular ring by virtue of a rotating shaft, the side wall of the fixed column, which is far away from one side of the rotating shaft, is fixedly connected with a fixed rod, one end, which is far away from the rotating shaft, of the semicircular ring is fixed with the fixed rod by virtue of a second fixed screw, and the heat-resistant telescopic pipe penetrates through a neutral position between the semicircular ring and the fixed column.

Preferably, the upper side wall of the lower die is fixedly connected with an annular stop dog, an annular groove is formed in the lower side wall of the upper die, and the stop dog is clamped with the groove.

The invention has the beneficial effects that: through the drawing liquid pump two that sets up, combine the flexible of hydraulic stem, utilize the liquid outlet on the round bar, liquid raw materials that will have the uniform temperature pours into the moulding chamber between mould and the bed die, utilize the hydraulic stem to produce decurrent pressure to last mould, improve the leakproofness and the degree of agreeing with between mould and the bed die, let both can not take place skew easily, and after accomplishing the raw materials pouring, the hydraulic stem can contract and make the lateral wall of round bar bottom and the lateral wall on last mould top constitute a whole, reduce the fold rate on lens shaping rear surface from this, and adopt cooling device to cool down the lens, make its separation with the mould that can be easy, make things convenient for the staff to take out it, holistic structure is comparatively simple, but degree of mechanization is high, it is very convenient to operate.

Drawings

FIG. 1 is a schematic view of a partial configuration of a lens mold gating system according to the present invention;

FIG. 2 is a schematic diagram of the overall structure of a lens mold gating system according to the present invention;

FIG. 3 is a top view of a partial structure of a ring;

FIG. 4 is an enlarged view of the structure A in FIG. 1;

FIG. 5 is an enlarged view of the structure B in FIG. 1;

FIG. 6 is an enlarged view of structure C of FIG. 1;

fig. 7 is an enlarged view of the structure D in fig. 1.

In the figure: the device comprises a base 1, a base plate I2, a base plate I3, a support plate I4, a top plate I5, a lower die I6, a hydraulic rod I7, an upper die I8, a fixed column 9, a vertical rod 10, a cross rod 11, a circular ring 11, a 12L-shaped rod 13, a circular rod 14, a cavity 15, a heat-resistant telescopic pipe 16, a liquid outlet 17, a liquid storage cavity 18, a stop block 19, a groove 20, a heat preservation box 20, a liquid pumping pump I21, a catheter I22, a three-way pipe 23, a catheter II 24, a slide block 25T, a slide groove 26T, a fixed screw I27, a fixed screw hole 28, a semicircular ring 29, a fixed screw II 30, a base plate II 31, a liquid pumping pump II 32, a liquid storage.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-7, a lens mold casting system includes a bottom plate 2 fixed on the top of a base 1, a support plate 3 fixedly connected on the top of the bottom plate 2, a top plate 4 fixedly connected on the top of the support plate 3, a bottom mold 5 arranged on one side of the support plate 3, a T-shaped slide 25 fixedly connected on the bottom of the bottom mold 5, a T-shaped chute 26 with an upward opening arranged in the bottom plate 2, the T-shaped slide 25 slidably connected in the T-shaped chute 26, a fixing screw 27 arranged on one side of the T-shaped slide 25, a plurality of fixing screw holes 28 arranged on the T-shaped chute 26 along the sliding direction of the T-shaped slide 25, a plurality of fixing screw holes 28 designed to facilitate the fixing of the bottom mold 5 according to the actual position, the fixing screw 27 fixedly installed in the fixing screw hole 28, so as to detach the bottom mold 5 from the bottom plate 2, and replace molds with different specifications according to the actual size of the required, the bottom end of the top plate 4 is fixedly connected with a hydraulic rod 6, the top end of the lower die 5 is provided with an upper die 7, the upper side wall of the lower die 5 is fixedly connected with an annular stop block 18, the lower side wall of the upper die 7 is provided with an annular groove 19, the stop block 18 is clamped with the groove 19, and after the upper die 7 and the lower die 5 are mutually folded, a further sealing effect can be achieved on a combination part of the combination edge of the upper die 7 and the lower die 5 by utilizing the joint of the stop block 18 and the groove 19, so that liquid raw materials cannot leak out from a gap between the upper die 7 and the lower die 5;

the bottom end of the hydraulic rod 6 is fixedly connected with a first supporting device, the first supporting device comprises a fixed column 8, a circular ring 11 is arranged below the fixed column 8, the fixed column 8 is fixedly connected with the lower side wall of the hydraulic rod 6, the bottom end of the fixed column 8 is fixedly connected with a vertical rod 9, two cross rods 10 are symmetrically arranged on the side walls of two sides of the vertical rod 9, one ends, far away from the vertical rod 9, of the cross rods 10 are fixedly connected with the inner side wall of the circular ring 11, two L-shaped rods 12 are symmetrically arranged on the outer side wall of the circular ring 11, the bottom end of each L-shaped rod 12 is fixedly connected with the outer side wall of a circular rod 13, the bottom end of the first supporting device is fixedly connected with a circular rod 13 of which the inside is a hollow structure, a cavity 14 is formed in the circular rod 13, a heat-resistant telescopic pipe 15 is;

the end of the heat-resisting telescopic pipe 15 far away from the cavity 14 is fixedly connected with a liquid injection device, the liquid injection device comprises a second drawing pump 32, a second bottom plate 31 is fixedly connected on the side wall of the support plate 3 far away from the hydraulic rod 6, the second drawing pump 32 is fixedly connected with the upper side wall of the second bottom plate 31, a liquid storage tank 33 is arranged on the side of the second drawing pump 32 far away from the support plate 3, the liquid storage tank 33 is fixedly connected with the upper side wall of the base 1, a third guide pipe 34 is connected between the liquid storage tank 33 and the second drawing pump 32, a flowmeter 35 is arranged on the third guide pipe 34, one end of the heat-resisting telescopic pipe 15 far away from the round rod 13 is communicated with the second drawing pump 32, a cylindrical through hole penetrates through the top end of the upper mold 7, the round rod 13 is clamped in the through hole, a liquid outlet 16 penetrates through the side wall of the round rod 13 near the bottom end of the round rod, the round rod 13, the fixed column 8 is pressed downwards by utilizing the extension, when the round rod 13 moves downwards, the liquid outlet 16 on the side wall of the round rod 13 is separated from the side wall of the upper die 7, the liquid outlet 16 is opened, the liquid material in the liquid storage tank 33 is pumped into the cavity 14 by the second liquid pump 32 and is finally guided into the shaping cavity 37 formed by the upper die 7 and the lower die 5 through the liquid outlet 16, meanwhile, the hydraulic rod 6 is pressed downwards to drive the bottom end of the L-shaped rod to finally abut against the upper side wall of the upper die 7 to generate downward pressure on the upper die 7, so that the upper die 7 and the lower die 5 can be more precisely closed together, the compression molding process is more stable, the quality of compression molding of the lens is improved, after the raw material is poured, the hydraulic rod 6 contracts to drive the round rod 13 to move upwards, the lower side wall of the round rod 13 is finally attached to and spliced with the inner side wall of the upper die 7 into a whole, the liquid outlet 16 is blocked by the side wall of the upper die, after the round rod 13 continues to move upwards, the upper die 7 is driven to move upwards, the upper die 7 is separated from the lower die 5, the cast lens product is exposed, liquid storage cavities 17 are formed in the upper die 7 and the lower die 5, and a second guide pipe 24 is fixedly connected to the side wall of one end of each liquid storage cavity 17;

the end of the second conduit 24 far away from the liquid storage cavity 17 is fixedly connected with a cooling device, the cooling device comprises a third bottom plate 36 fixed on the side wall of the base 1, the top end of the third bottom plate 36 is fixedly connected with an insulation can 20, one side of the insulation can 20 near the base 1 is provided with a first liquid drawing pump 21, a first conduit 22 is connected between the first liquid drawing pump 21 and the insulation can 20, the output end of the first liquid drawing pump 21 is in threaded connection with a three-way pipe 23, one end of the two second conduits 24 far away from the liquid storage cavity 17 is connected with the three-way pipe 23, the cooling medium stored in the insulation can 20 is dry ice which has very low temperature, the liquid drawing pump 21 is used for guiding the liquid drawing medium into the liquid storage cavity 17, the temperature of the upper die 7 and the temperature of the lower die 5 can be reduced, the liquid raw material has certain temperature, after the liquid raw material is cooled, a gap is, also make the process of taking out the lens easier, rotate with the help of the pivot on the lateral wall of fixed column 8 and be connected with semicircle ring 29, fixed column 8 keeps away from fixedly connected with dead lever on the lateral wall of pivot one side, the one end that the pivot was kept away from to semicircle ring 29 is together fixed with the dead lever with the help of fixed screw two 30, heat-resisting flexible pipe 15 passes from the neutral position between semicircle ring 29 and fixed column 8, at the flexible in-process of hydraulic stem 6, can play a fixed effect to heat-resisting flexible pipe 15.

In the invention, when the pouring system is used, the hydraulic rod 6 is started to extend downwards, so that the upper die 7 and the lower die 5 are driven to be folded, the round rod 13 continues to move downwards, the liquid outlet 16 on the round rod 13 is opened, the liquid pump II 32 pumps the liquid raw material prepared in advance in the liquid storage tank 33 and having a certain temperature into the cavity 14 in the round rod 13, the liquid raw material is guided into the shaping cavity 37 formed after the upper die 7 and the lower die 5 are folded through the liquid outlet 16, at the moment, the lower side wall of the L-shaped rod 12 is contacted with the upper side wall of the upper die 7 due to the downward pressing of the hydraulic rod 6, the L-shaped rod 12 generates corresponding extrusion force on the upper die 7, so that the upper die 7 and the lower die 5 are more precisely folded together, after the pouring of the raw material is completed, the hydraulic rod 6 contracts, the round rod 13 is driven to move upwards, and finally the lower side wall of the round rod 13 is spliced and fused with the inner side wall of the upper die, the liquid outlet 16 is blocked by the side wall of the upper mold 7 and is closed, the sealing performance of the whole lens compression molding is improved, the first liquid pumping pump 21 pumps a dry ice medium into the liquid storage cavity 17 in the upper mold 7 and the lower mold 5, so that the compression molded lens is cooled, the side wall of the lens and the side wall of the mold are loosened, the round rod 13 moves upwards again, the upper mold 7 is driven to move upwards, the upper mold 7 and the lower mold 5 can be separated easily, and finally, a worker can take out the whole lens conveniently, so that the lens enters the next processing procedure.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A lens mold pouring system comprises a first bottom plate (2) fixed at the top end of a base (1), and is characterized in that a support plate (3) is fixedly connected to the top end of the first bottom plate (2), a top plate (4) is fixedly connected to the top end of the support plate (3), a lower mold (5) is arranged on one side of the support plate (3), a hydraulic rod (6) is fixedly connected to the bottom end of the top plate (4), an upper mold (7) is arranged at the top end of the lower mold (5), a first supporting device is fixedly connected to the bottom end of the hydraulic rod (6), a round rod (13) with a hollow structure inside is fixedly connected to the bottom end of the first supporting device, a cavity (14) is arranged inside the round rod (13), a heat-resistant telescopic pipe (15) is arranged at the top end of the round rod (13), and the heat-resistant telescopic pipe (15) is hermetically inserted into the upper side wall of the round rod (13) and, one end, far away from the cavity (14), of the heat-resistant telescopic pipe (15) is fixedly connected with a liquid injection device, a cylindrical through hole penetrates through the top end of the upper die (7), the round rod (13) is clamped in the through hole, a liquid outlet (16) penetrates through the side wall, close to the bottom end, of the round rod (13), liquid storage cavities (17) are formed in the upper die (7) and the lower die (5), a second guide pipe (24) is fixedly connected to the side wall of one end of each liquid storage cavity (17), a cooling device is fixedly connected to one end, far away from the liquid storage cavities (17), of the second guide pipe (24), the first supporting device comprises a fixed column (8), a circular ring (11) is arranged below the fixed column (8), the fixed column (8) is fixedly connected with the lower side wall of the hydraulic rod (6), a vertical rod (9) is fixedly connected to the bottom end of the fixed column (8), and two cross rods (10) are symmetrically arranged on the, one end of the cross rod (10) far away from the vertical rod (9) is fixedly connected with the inner side wall of the circular ring (11), two L-shaped rods (12) are symmetrically arranged on the outer side wall of the circular ring (11), and the bottom ends of the L-shaped rods (12) are fixedly connected with the outer side wall of the circular rod (13).

2. The lens mold pouring system according to claim 1, wherein the liquid injection device comprises a second liquid pump (32), a second bottom plate (31) is fixedly connected to a side wall of the support plate (3) far away from the hydraulic rod (6), the second liquid pump (32) is fixedly connected to an upper side wall of the second bottom plate (31), a liquid storage tank (33) is arranged on a side of the second liquid pump (32) far away from the support plate (3), the liquid storage tank (33) is fixedly connected to an upper side wall of the base (1), a third guide pipe (34) is connected between the liquid storage tank (33) and the second liquid pump (32), a flow meter (35) is arranged on the third guide pipe (34), and one end of the heat-resistant telescopic pipe (15) far away from the round rod (13) is communicated with the second liquid pump (32).

3. The lens mold pouring system according to claim 1, wherein the cooling device comprises a third bottom plate (36) fixed on the side wall of the base (1), the heat preservation box (20) is fixedly connected to the top end of the third bottom plate (36), a first liquid pump (21) is arranged on one side of the heat preservation box (20) close to the base (1), a first conduit (22) is connected between the first liquid pump (21) and the heat preservation box (20), a tee pipe (23) is connected to the output end of the first liquid pump (21) in a threaded manner, and one ends of the two conduits (24) far away from the liquid storage cavity (17) are connected with the tee pipe (23).

4. The lens mold gating system according to claim 1, wherein a T-shaped sliding block (25) is fixedly connected to the bottom end of the lower mold (5), a T-shaped sliding groove (26) with an upward opening is formed in the first bottom plate (2), the T-shaped sliding block (25) is slidably connected to the T-shaped sliding groove (26), a first fixing screw (27) is arranged on one side of the T-shaped sliding block (25), a plurality of fixing screw holes (28) are formed in the T-shaped sliding groove (26) along the sliding direction of the T-shaped sliding block (25), and the first fixing screw (27) is fixedly installed in the fixing screw holes (28).

5. The lens mold gating system according to claim 1, wherein a semicircular ring (29) is rotatably connected to a side wall of the fixed column (8) through a rotating shaft, a fixed rod is fixedly connected to a side wall of the fixed column (8) far away from the rotating shaft, one end of the semicircular ring (29) far away from the rotating shaft is fixed with the fixed rod through a second fixed screw (30), and the heat-resistant telescopic pipe (15) penetrates through a neutral position between the semicircular ring (29) and the fixed column (8).

6. The lens mold gating system of claim 1, wherein an annular stop (18) is fixedly connected to the upper side wall of the lower mold (5), an annular groove (19) is formed in the lower side wall of the upper mold (7), and the stop (18) is clamped with the groove (19).