CN113510886A - Contact lens forming method and mold - Google Patents
Contact lens forming method and mold Download PDFInfo
- Publication number
- CN113510886A CN113510886A CN202110515869.XA CN202110515869A CN113510886A CN 113510886 A CN113510886 A CN 113510886A CN 202110515869 A CN202110515869 A CN 202110515869A CN 113510886 A CN113510886 A CN 113510886A
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- China
- Prior art keywords
- lead screw
- die
- lower die
- mould
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims 5
- 230000000694 effects Effects 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000001491 myopia Diseases 0.000 description 2
- 230000004379 myopia Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 208000029091 Refraction disease Diseases 0.000 description 1
- 230000004430 ametropia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 230000000366 juvenile effect Effects 0.000 description 1
- 208000014733 refractive error Diseases 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
- B29C33/22—Opening, closing or clamping by rectilinear movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/44—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
- B29L2011/0041—Contact lenses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a forming method and a die for contact lenses, which comprise a frame; the utility model discloses a lead screw, including frame, lead screw, holding dish, screw nut, mould, bolt fixed mounting, last mould bottom, last mould and lower mould, be provided with the lead screw between the frame, lead screw one end is stretched out the frame mounting and is in the motor front end, the lead screw upside is provided with two holding dishes, holding dish bottom intermediate position all welds there is lead screw nut, lead screw nut overlaps at the lead screw upside, holding dish upper end is provided with the bed die, the bed die upper end is provided with a plurality of lower mould cores, frame upper end intermediate position is provided with the portal frame, the portal frame upper end is provided with the telescopic link, the telescopic link bottom is provided with the mould, it passes through bolt fixed mounting in telescopic link bottom position to go up the mould, it is provided with a plurality of last mould cores to go up the mould bottom, go up and correspond each other between the mould core down. After the casting is finished and the forming is waited, the switch starts the motor to drive the screw rod to rotate, and the other containing disc is moved to the bottom end of the lower die to be cast again, so that the casting method is very convenient and fast.
Description
Technical Field
The invention relates to the technical field of contact lens processing equipment, in particular to a contact lens forming method and a contact lens forming mold.
Background
Contact lenses, or contact lenses, are lenses that are worn on the cornea of the eye to correct vision or protect the eye. The contact lenses are hard and soft, the contact lenses not only bring great improvement to ametropia patients with myopia, hyperopia, astigmatism and the like from the aspects of appearance and convenience, but also have wide visual field and vivid visual objects, and also play special effects in the aspects of controlling the development of juvenile myopia and astigmatism, treating special ophthalmopathy and the like, and the contact lenses can be processed at a non-honest speed after being cooled, molded and demoulded in the processing process.
Disclosure of Invention
The invention aims to provide a contact lens forming method and a mold, which solve the problem that the contact lens can be processed at the next time in a non-honest slow way after being cooled, formed and demolded in the processing process.
In order to achieve the purpose, the invention provides the following technical scheme: a method and mold for forming a contact lens, comprising a frame; a screw rod is arranged between the frames, two ends of the screw rod are embedded into the frames, a bearing is sleeved outside the section of the screw rod embedded into the frames, one end of the screw rod extends out of the frames and is arranged at the front end of the motor, the motor is fixedly arranged at one side position of the frames through bolts, two containing discs are arranged at the upper side of the screw rod, screw nuts are welded at the middle positions of the bottom ends of the containing discs, the screw nuts are sleeved at the upper side of the screw rod, guide rods are arranged at two sides of the screw rod and penetrate through the two ends of the containing discs and are welded inside the frames, a lower die is arranged at the upper end of each containing disc and is placed at the upper side position of the containing disc, a plurality of lower die cores are arranged at the upper end of the lower die, a portal frame is arranged at the middle position of the upper end of the frames, the bottom end of the portal frame is fixedly arranged at the upper side position of the frames through bolts, and a telescopic rod is arranged at the upper end of the portal frame, the telescopic link passes through bolt fixed mounting at the portal frame upside, the telescopic link bottom is provided with the mould, go up the mould and pass through bolt fixed mounting in telescopic link bottom position, it is provided with a plurality of upper die cores to go up the mould bottom, go up and correspond each other between mould core and the lower mould core.
Preferably, the two sides of the upper die are provided with sliding rods, the sliding rods are welded on the two sides of the upper die, the inner side of the portal frame is provided with a sliding groove, and the sliding rods are connected with the sliding groove in a sliding mode.
Preferably, a side support is arranged between the telescopic rod and the upper die, and two ends of the side support are fixedly installed at the bottom end of the telescopic rod and the upper end of the upper die through bolts.
Preferably, the bottom end of the upper die is provided with inserting rods all around, the upper ends of the inserting rods are welded at the upper end of the upper die, the upper end of the lower die is provided with slots all around, and the bottom ends of the inserting rods are inserted into the slots.
Preferably, the electric motor is provided as an electric motor.
Preferably, the section of the bottom end of the lower die is trapezoidal.
Further, a method of forming a mold for a contact lens, comprising the steps of:
s1: placing a lower die at the upper end of the containing disc;
s2: the motor is started through the switch, the motor drives the screw rod to rotate, and the screw rod drives the containing disc to move under the action of the screw rod nut in the rotating process;
s3: moving the lower die on the upper side of the containing disc to a position right below the upper die;
s4: the telescopic rod is opened through the switch, the telescopic rod drives the upper die to move downwards to be matched with the lower die, the interior of the lower die is cast after pouring, and the casting is finished;
s5: after waiting for the shaping, opening the telescopic link and driving the mould upwards, opening the motor through the switch and driving the lead screw and rotate, move another holding tray to the bed die bottom and cast once more.
Compared with the prior art, the invention has the beneficial effects that:
1. after the casting is finished and the forming is waited, the motor is started through the switch to drive the screw rod to rotate, and the other containing disc is moved to the bottom end of the lower die to be cast again, so that the casting is very convenient and quick;
2. the section of the bottom end of the lower die is trapezoidal, so that the caliber of the bottom end of the lower die can be reduced, and the lower die can be conveniently and quickly placed in the containing disc;
3. the servo motor used by the motor is mainly controlled by the encoder, and the rotating speed and the angle of the motor and the screw rod can be accurately controlled through the encoder, so that the moving distance of the containing disc is conveniently controlled;
4. the upper die and the lower die can be calibrated through the action of the insert rod and the slot.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view of an upper mold according to the present invention;
fig. 4 is a schematic structural view of the lower mold of the present invention.
In the figure: 1. a frame; 2. an electric motor; 3. a holding tray; 4. an upper die; 5. a telescopic rod; 6. a gantry; 7. an upper mold core; 8. a guide bar; 9. a screw rod; 10. a feed screw nut; 11. a lower die; 12. a lower mold core; 13. a slot; 14. a side bracket; 15. inserting a rod; 16. a slide rod; 17. a chute.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2, 3 and 4, in one embodiment of the present invention, a method and a mold for forming a contact lens includes a frame 1; a screw rod 9 is arranged between frames 1, two ends of the screw rod 9 are embedded in the frames 1, a bearing is sleeved outside the section of the screw rod 9 embedded in the frames 1, one end of the screw rod 9 extends out of the frames 1 and is installed at the front end of a motor 2, the motor 2 is fixedly installed at one side position of the frames 1 through bolts, two containing discs 3 are arranged at the upper side of the screw rod 9, screw nuts 10 are welded at the middle positions of the bottom ends of the containing discs 3, the screw nuts 10 are sleeved at the upper side of the screw rod 9, guide rods 8 are arranged at two sides of the screw rod 9, the guide rods 8 penetrate through the containing discs 3 and are welded in the frames 1, a lower die 11 is arranged at the upper end of the containing discs 3, the lower die 11 is arranged at the upper side position of the containing discs 3, a plurality of lower die cores 12 are arranged at the upper end of the lower die 11, a portal frame 6 is arranged at the middle position of the upper end of the frames 1, the bottom end of the portal frame 6 is fixedly installed at the upper side position of the frames 1 through bolts, and a telescopic rod 5 is arranged at the upper end of the portal frame 6, the telescopic link 5 passes through bolt fixed mounting at 6 upsides of portal frame, and 5 bottoms of telescopic link are provided with mould 4, go up mould 4 and pass through bolt fixed mounting in 5 bottom positions of telescopic link, go up mould 4 bottom and be provided with a plurality of upper die core 7, go up mutual correspondence between mould core 7 and the lower die core 12.
Furthermore, sliding rods 16 are arranged on two sides of the upper die 4, the sliding rods 16 are welded on two sides of the upper die 4, sliding grooves 17 are arranged inside the portal frame 6, the sliding rods 16 are connected with the sliding grooves 17 in a sliding mode, when the upper die 4 moves downwards, the sliding rods 16 slide inside the sliding grooves 17, and the moving range of the upper die 4 can be controlled.
Further, be provided with collateral branch frame 14 between telescopic link 5 and the last mould 4, and collateral branch frame 14 both ends pass through bolt fixed mounting at 5 bottoms of telescopic link and last mould 4 upper end position, form triangle-shaped between collateral branch frame 14 and telescopic link 5 and the last mould 4 for the telescopic link 5 with go up the principle that the mould 4 was installed more stably according to triangle-shaped stability.
Further, last mould 4 bottom is provided with inserted bar 15 all around, and 15 upper ends of inserted bar weld in 4 upper end positions of last mould, and 11 upper ends of bed die are provided with slot 13 all around, and inside 15 bottoms of inserted bar inserted slot 13, can calibrate last mould 4 and bed die 11 through the effect of inserted bar 15 and slot 13.
Further, the motor 2 is set as a motor, a servo motor used by the motor 2 is mainly controlled by an encoder, and the rotation speed and the angle of the motor 2 and the lead screw 9 can be accurately controlled through the encoder, so that the moving distance of the containing tray 3 can be conveniently controlled.
Further, 11 bottom tangent planes of bed die are trapezoidal settings, can reduce the bore of 11 bottoms of bed die, and convenient quick places bed die 11 inside holding dish 3.
Further, a method of forming a mold for a contact lens, comprising the steps of:
s1: placing a lower die 11 at the upper end of the containing tray 3;
s2: the motor 2 is started through the switch, the motor 2 drives the screw rod 9 to rotate, and the screw rod 9 drives the containing disc 3 to move under the action of the screw rod nut 10 in the rotating process;
s3: moving the lower mold 11 on the upper side of the containing tray 3 to a position right below the upper mold 4;
s4: the telescopic rod 5 is opened through the switch, the telescopic rod 5 drives the upper die 4 to move downwards to be matched with the lower die 11, and the interior of the lower die 11 is cast after casting is carried out, so that casting is finished;
s5: after the forming is waited for, the upper die 4 is driven upwards by opening the telescopic rod 5, the screw rod 9 is driven to rotate by opening the motor 2 through the switch, and the other containing disc 3 is moved to the bottom end of the lower die 11 for casting again.
The working principle and the using process of the invention are as follows: during the use, place lower mould 11 and hold 3 upper end positions in the dish, opening motor 2 through the switch, motor 2 drives lead screw 9 and rotates, lead screw 9 is at rotatory in-process, will drive through screw-nut 10's effect and hold dish 3 and remove, the lower mould 11 that will hold 3 upsides of dish removes to mould 4 under the position, opening telescopic link 5 through the switch, telescopic link 5 drives mould 4 and carries out the downstream, agree with between 11 with the lower mould, through pouring the inside casting of lower mould 11, the casting is accomplished, after waiting for the shaping, it upwards to open telescopic link 5 and drive mould 4, it rotates to drive lead screw 9 opening motor 2 through the switch, it casts to hold another dish 3 removal 11 bottoms of lower mould once more, unusual convenience and quick.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A contact lens forming mold comprising a frame (1); the method is characterized in that: the lead screw (9) is arranged between the frames (1), the two ends of the lead screw (9) are embedded into the frames (1), the bearing is sleeved outside the section where the lead screw (9) is embedded into the frames (1), one end of the lead screw (9) extends out of the frames (1) and is installed at the front end of the motor (2), the motor (2) is fixedly installed at one side of the frames (1) through bolts, two containing discs (3) are arranged on the upper side of the lead screw (9), lead screw nuts (10) are welded at the middle positions of the bottoms of the containing discs (3), the lead screw nuts (10) are sleeved on the upper side of the lead screw (9), guide rods (8) are arranged on the two sides of the lead screw (9), the guide rods (8) penetrate through the containing discs (3) and are welded inside the frames (1), a lower die (11) is arranged at the upper ends of the containing discs (3), and the lower die (11) is placed at the upper side of the containing discs (3), the upper end of the lower die (11) is provided with a plurality of lower die cores (12), a portal frame (6) is arranged at the middle position of the upper end of the frame (1), the bottom end of the portal frame (6) is fixedly installed at the upper side of the frame (1) through bolts, an expansion rod (5) is arranged at the upper end of the portal frame (6), the expansion rod (5) is fixedly installed at the upper side of the portal frame (6) through bolts, an upper die (4) is arranged at the bottom end of the expansion rod (5) through bolts, a plurality of upper die cores (7) are arranged at the bottom end of the upper die (4), and the upper die cores (7) and the lower die cores (12) correspond to each other.
2. The contact lens molding mold according to claim 1, wherein: and sliding rods (16) are arranged on two sides of the upper die (4), the sliding rods (16) are welded on two sides of the upper die (4), sliding grooves (17) are formed in the inner side of the portal frame (6), and the sliding rods (16) are connected with the sliding grooves (17) in a sliding mode.
3. The contact lens molding mold according to claim 1, wherein: a side support (14) is arranged between the telescopic rod (5) and the upper die (4), and two ends of the side support (14) are fixedly installed at the bottom end of the telescopic rod (5) and the upper end of the upper die (4) through bolts.
4. The contact lens molding mold according to claim 1, wherein: the bottom end of the upper die (4) is provided with inserting rods (15) all around, the upper ends of the inserting rods (15) are welded to the upper end of the upper die (4), slots (13) are formed in the upper end of the lower die (11) all around, and the bottom ends of the inserting rods (15) are inserted into the slots (13).
5. The contact lens molding mold according to claim 1, wherein: the electric motor (2) is provided as a motor.
6. The contact lens molding mold according to claim 1, wherein: the bottom end section of the lower die (11) is in a trapezoidal arrangement.
7. The method of claim 1, wherein: the method comprises the following steps:
s1: placing a lower die (11) at the upper end of the containing disc (3);
s2: the motor (2) is started through the switch, the motor (2) drives the screw rod (9) to rotate, and the screw rod (9) drives the containing disc (3) to move under the action of the screw rod nut (10) in the rotating process;
s3: moving a lower die (11) on the upper side of the containing disc (3) to a position right below the upper die (4);
s4: the telescopic rod (5) is opened through the switch, the telescopic rod (5) drives the upper die (4) to move downwards to be matched with the lower die (11), and the interior of the lower die (11) is cast after pouring, so that the casting is completed;
s5: after the forming is waited for, the upper die (4) is driven to move upwards by opening the telescopic rod (5), the screw rod (9) is driven to rotate by opening the motor (2) through the switch, and the other containing disc (3) is moved to the bottom end of the lower die (11) for casting again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110515869.XA CN113510886A (en) | 2021-05-12 | 2021-05-12 | Contact lens forming method and mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110515869.XA CN113510886A (en) | 2021-05-12 | 2021-05-12 | Contact lens forming method and mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113510886A true CN113510886A (en) | 2021-10-19 |
Family
ID=78064427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110515869.XA Pending CN113510886A (en) | 2021-05-12 | 2021-05-12 | Contact lens forming method and mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113510886A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202781569U (en) * | 2012-09-03 | 2013-03-13 | 苏州金科信汇光电科技有限公司 | Pouring die with replaceable inserts |
| US20190217561A1 (en) * | 2016-09-30 | 2019-07-18 | Hoya Corporation | Contact lens manufacturing method |
| CN209718489U (en) * | 2019-03-07 | 2019-12-03 | 天津开谱科技有限公司 | A kind of plastic products forming mold |
| CN110978356A (en) * | 2019-11-07 | 2020-04-10 | 罗运宏 | Lens production mould |
| CN211564439U (en) * | 2020-01-13 | 2020-09-25 | 鸡泽县隆安铸造有限公司 | Well lid sand mould casting machine |
-
2021
- 2021-05-12 CN CN202110515869.XA patent/CN113510886A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202781569U (en) * | 2012-09-03 | 2013-03-13 | 苏州金科信汇光电科技有限公司 | Pouring die with replaceable inserts |
| US20190217561A1 (en) * | 2016-09-30 | 2019-07-18 | Hoya Corporation | Contact lens manufacturing method |
| CN209718489U (en) * | 2019-03-07 | 2019-12-03 | 天津开谱科技有限公司 | A kind of plastic products forming mold |
| CN110978356A (en) * | 2019-11-07 | 2020-04-10 | 罗运宏 | Lens production mould |
| CN211564439U (en) * | 2020-01-13 | 2020-09-25 | 鸡泽县隆安铸造有限公司 | Well lid sand mould casting machine |
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Application publication date: 20211019 |
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| RJ01 | Rejection of invention patent application after publication |