WO2010140785A2 - Moule entièrement automatisé pour la production d'une lentille de contact - Google Patents

Moule entièrement automatisé pour la production d'une lentille de contact Download PDF

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Publication number
WO2010140785A2
WO2010140785A2 PCT/KR2010/003234 KR2010003234W WO2010140785A2 WO 2010140785 A2 WO2010140785 A2 WO 2010140785A2 KR 2010003234 W KR2010003234 W KR 2010003234W WO 2010140785 A2 WO2010140785 A2 WO 2010140785A2
Authority
WO
WIPO (PCT)
Prior art keywords
contact lens
curve
mold
front curve
monomer
Prior art date
Application number
PCT/KR2010/003234
Other languages
English (en)
Korean (ko)
Other versions
WO2010140785A3 (fr
Inventor
천성철
Original Assignee
뉴바이오(주)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020100017275A external-priority patent/KR101155976B1/ko
Application filed by 뉴바이오(주) filed Critical 뉴바이오(주)
Publication of WO2010140785A2 publication Critical patent/WO2010140785A2/fr
Publication of WO2010140785A3 publication Critical patent/WO2010140785A3/fr

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Classifications

    • 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
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut 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
    • B29C39/26—Moulds or cores
    • B29C39/28—Moulds or cores with means to avoid flashes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • B29D11/005—Moulds for lenses having means for aligning the front and back moulds
    • 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

Definitions

  • the present invention relates to a mold mold for fully automated contact lens manufacturing, and more particularly, to smoothly form a portion adjacent to the edge of the contact lens to prevent damage to the cornea during use, and to widen the gap between the base curve and the front curve.
  • the present invention relates to a molding mold for fully automated contact lens manufacturing in which a monomer storage unit and a monomer residue embedded in the gap after polymerization are integrally solidified and easily separated after polymerization.
  • a contact lens mold mold for manufacturing a contact lens is composed of a female mold having a concave surface and a male mold having a convex surface, and is formed in a space formed by bonding the female mold and the male mold to each other.
  • the monomer is injected and then polymerized to prepare a contact lens.
  • the conventional mold mold is formed such that the edge portion of the contact lens has an angle, and there is a problem of safety accidents such as a foreign body feeling when the lens is worn and the cornea is damaged.
  • the male mold is separated from the female mold or If the mold is flowed in the center there was a problem that a defective product occurs.
  • the conventional mold mold is difficult to remove the remaining residues because the monomer residues stored in the monomer storage unit and the solidified residues in the gap between the base curve and the front curve after polymerization, it is difficult to remove the residues, each fine fine.
  • the contact lens workshop which should be kept clean at all times due to the generation of powder, could not maintain a comfortable environment such as air pollution.
  • the present invention was devised to solve the above problems, and an object of the present invention is to completely form a portion adjacent to the edge end of the contact lens to prevent damage to the cornea and to minimize the foreign body feeling felt by the user There is provided a mold mold for manufacturing an automated contact lens.
  • Another object of the present invention is to provide a mold mold for fully automated contact lens manufacturing that can easily supplement the monomer stored in the monomer storage unit during polymerization after injection of the monomer to minimize the production of defective products.
  • Another object of the present invention is to provide a mold mold for fully automated contact lens manufacturing to produce a high-quality product by preventing the base curve and the front curve to be in close contact with the center to prevent the shaking during the polymerization process.
  • another object of the present invention is to form a binding protrusion to achieve a precise coupling with the front curve without the inclination of the base curve, the polymerization residue formed by the binding protrusion after polymerization and the monomer residue in the monomer storage unit separated from each other Fully automated contacts that can be easily solidified without being solidified and can easily remove and remove monomer residues, and solve the difficulties of separation and fine powder generated and removed when formed as a single solidified body. It is to provide a mold mold for manufacturing a lens.
  • another object of the present invention is to minimize the occurrence of fine powder to significantly lower the defective rate of the product, in particular, the formation of the binding protrusions in the contact lens forming unit and the monomer storage unit when combining the base curve and the front curve
  • the stored monomer is more effectively escaped into the gap formed by the binding protrusion to provide a mold mold for manufacturing a fully automated contact lens having accuracy and ease of bonding.
  • the mold mold for fully automated contact lens manufacturing comprising a male base curve having a convex surface and a female front curve having a concave surface to be coupled to the convex surface
  • a contact lens forming portion 30 is formed therein, and the monomer storage portion 35 is formed by extending outside the contact lens forming portion 30.
  • the edge end portion 32 formed at the end of the contact lens forming portion 30 has a cross-sectional shape at right angles as the lower surface of the base curve 10 and the inner surface of the front curve 20 are orthogonally coupled to each other.
  • the inner surface of the front curve 20 forming the monomer storage unit 35 is formed of an inclined surface 23 inclined to be connected to the edge end 32,
  • the portion connected to the convex surface 12 of the base curve 10 at the edge end 32 and the portion connected to the inner concave surface 22 of the front curve 20 are rounded curved portions without forming a vertex. Characterized in that 40.
  • the locking jaw 15 protrudes from the outer surface of the base curve 10
  • the locking jaw 25 protrudes from the inner surface of the front curve 20 so as to span the locking jaw 15. Is preferably formed.
  • the configuration according to another embodiment of the present invention is a mold base for manufacturing a fully automated contact lens made of a male base curve having a convex surface and a female front curve having a concave surface to be coupled to the convex surface, the base curve As the 10 and the front curve 20 are coupled, a contact lens forming unit 30 is formed therein, and the monomer storage unit 35 is formed by extending outside the contact lens forming unit 30.
  • the edge end portion 32 formed at the end of the contact lens forming portion 30 is formed such that the cross-sectional shape forms an acute angle while the inner surface of the front curve 20 is coupled to the convex shape surface 12 of the base curve 10.
  • the inner surface of the front curve 20 constituting the monomer storage portion 35 is formed of parallel parallel surfaces 24 to be connected to the edge end portion 32, and the front curve at the edge end portion 32. 20's
  • the portion connected to the inner concave surface 22 is characterized by being formed as a rounded curved portion 45 without forming a vertex.
  • the inlet portion of the front curve 20 is preferably formed with an inclined portion (21c) for guiding the easy coupling of the base curve 10 after the administration of the monomer, the guide so as to stably distribute the monomer.
  • the outer surface of the base curve 10 is formed with a plurality of binding protrusions 17 protrude at a predetermined interval, so that the lower end of the binding protrusion 17 is easily inserted into the inner peripheral surface of the front curve (20). It is preferably formed of a rounded curved surface 18.
  • FIG. 1 is a perspective view showing a mold mold according to an embodiment of the present invention
  • FIG. 2 is a partially enlarged view showing a cross section of FIG.
  • FIG. 5 is a cross-sectional view of a mold mold according to another embodiment of the present invention.
  • FIG. 6 is a bottom perspective view of the base curve showing a state in which a binding protrusion is formed on the base curve according to the present invention
  • FIG. 7 is a partially enlarged cross-sectional view of the base curve of FIG. 6 inserted into the front curve;
  • Figure 8 is an isolated state of the bare curve using the tool according to the present invention.
  • the mold mold for fully automated contact lens manufacturing includes a male base curve 10 formed of a convex surface 12 protruding at a predetermined curvature, and a male base curve 10 of the male base curve 10.
  • the upper inner side is formed of a front curve 20 formed in a concave concave surface 22 so as to correspond to the lower portion.
  • the base curve 10 is formed so that the outer circumferential surface is stepped, so that when the contact lens is separated after polymerization of the mold mold, the base curve 10 is easily retracted from the front curve 20 by giving a constant force to the stepped portion, Accordingly, it is possible to prevent damage to the product produced and to produce a high quality product.
  • the front curve 20 is protruded outwardly to the upper peripheral portion is formed with a locking portion (21a) is inserted into a plurality of holes formed in the moving plate 50 when moving to the drying apparatus after the coupling of the base curve 10 It is moved across the rim, and also maintains the original shape in the untwisted state during heat shrinkage, and guides the firm coupling with the base curve 10, and when separated from the base curve 10 after polymerization It serves as a support.
  • the support portion (21b) for supporting the front curve 20 so that the concave surface 22 of the front curve 20 is spaced from the ground is precisely horizontal in the state that the base curve 10 is coupled to high quality It is formed to produce contact lenses.
  • the inlet portion of the front curve 20 is formed with an inclined portion (21c) for guiding the coupling easier with the base curve 10 after the administration of the monomer is formed, the inclined portion (21c) is
  • the base curve 10 and the front curve 20 are guided to be easily positioned at the center of the mold mold, respectively, and play an important role of guiding the monomers to be stably distributed.
  • the contact lens forming unit 30 is formed in a predetermined space therein according to the combination of the base curve 10 and the front curve 20, and is formed to extend outside the contact lens forming unit 30.
  • the monomer storage unit 35 is formed to store an extra monomer for filling the monomer according to heat shrinkage during drying of the monomer stored in the contact lens forming unit 30.
  • the edge end portion 32 of the contact lens forming portion 30 has a cross-sectional shape at right or right angles as the lower surface of the base curve 10 and the inner surface of the front curve 20 are orthogonally coupled to each other.
  • the inner surface of the front curve 20 forming the monomer storage unit 35 is formed to have a close angle, and is formed as an inclined surface 23 inclined to be connected to the edge end 32.
  • the monomer stored in the monomer storage unit 35 is the contact lens forming unit 30 through the edge end 32 when the heat shrink operation is generated during the polymerization of the monomer stored in the contact lens forming unit 30. Inflow to fill the insufficient amount.
  • the mold mold of the present invention has a convex surface of the base curve 10 at the edge end portion 32 so as to be manufactured in a smoothly closed state without forming an angle on the edge portion of the contact lens during the manufacture of the contact lens 60 (
  • the portion connected to 12 and the portion connected to the inner concave surface 22 of the front curve 20 are formed as rounded curved portions 40 without the formation of vertices.
  • the user can prevent damage to the cornea by minimizing foreign object feeling when worn.
  • the locking projection 15 is formed on the outer surface of the base curve 10 to the close contact between the base curve 10 and the front curve 20, the inner surface of the front curve 20 It is preferable that the fastening jaw 25 is formed to protrude so as to be fastened over the locking jaw 15.
  • the locking step to prevent the production of defective products due to the flow or lifting of the base curve 10 that may occur during the movement process 15 and the fastening jaw 25 is formed, and the base curve 10 and the front curve 20 is in close contact by the locking jaw (15) and the fastening jaw (25).
  • the gap between the base curve 10 and the front curve 20 is more than twice as wide as that of the existing gap to form a gap, and the outside of the base curve 10
  • a plurality of binding protrusions 17 protrude from the side surfaces at predetermined intervals so that the outer surface of the binding protrusions 17 is in close contact with the inner circumferential surface of the front curve 20.
  • the binding protrusion 17 and the front curve 20 has a very small gap, and the remaining portion has a relatively wide gap so that the residual solidified after the polymerization of the monomer is stored in the monomer storage 35 It is hardened and formed integrally with the monomer so that the base curve 10 can be easily removed after separation.
  • the lower end of the binding protrusion 17 inserts the base curve 10 into the front curve 20, the lower end of the binding protrusion 17 is not caught on the inner circumferential surface of the front curve 20. It is preferred that it is formed with a curved surface 18 rounded to facilitate insertion.
  • the lower end of the binding protrusion 17 may be formed to form a right angle without forming the curved surface 18.
  • the present invention minimizes the occurrence of fine powder when the monomer residue is removed by the formation of the binding protrusion 17, and can easily remove the monomer residue. do.
  • the mold mold according to another embodiment of the present invention is a male base curve 10 having a convex surface 12 and the concave surface to be coupled to the convex surface as in the embodiment Consists of a female front curve having a contact lens forming portion 30 formed therein as the base curve 10 and the front curve 20 are coupled, and extends outside the contact lens forming portion 30.
  • the monomer storage part 35 is formed.
  • the edge end portion 32 of the contact lens forming portion 30 is formed so that the cross-sectional shape is acute as the convex surface 12 of the base curve 10 and the inner surface of the front curve 20 are coupled.
  • the inner surface of the front curve 20 constituting the monomer storage portion 35 is formed in parallel parallel surfaces 24 to be connected to the edge end portion 32.
  • the monomer embedded in the contact lens forming unit 30 when the monomer embedded in the contact lens forming unit 30 is heat contracted, the monomer stored in the monomer storage unit 35 easily flows into the contact lens forming unit 30 to remove the shortage caused by heat contraction. It is filled.
  • a portion of the edge end portion 32 connected to the inner concave surface 22 of the front curve 20 is formed as a rounded curved portion 45 without the formation of a vertex as in one embodiment.
  • the inlet portion of the front curve 20 guides the easy coupling of the base curve 10 after the administration of the monomer as in one embodiment of the present invention, the inclined portion to guide the stable distribution of the monomer 21c is formed.
  • the monomer contact lens forming unit 30 when the monomer is supplied to the inside of the front curve 20 to cover the base curve 10 from the upper side to be in close contact with each other, the monomer contact lens forming unit 30 The remaining excess is stored in the monomer storage unit 35.
  • the polymerization is carried out in this state, as the monomer is thermally contracted, a space is formed in the contact lens forming unit 30, and at the same time, the monomer stored in the monomer storage unit 35 is moved to a space formed to fill the deficiency. After completely drying, the base curve 10 is separated, and then the contact lens 60 inside the front curve 20 is drawn out.
  • the edge portion is formed to be smoothly curved, and the cornea is damaged by the curved portion even when the contact part is in contact with the cornea by minimizing foreign object during use. Can be prevented.
  • the monomer storage during polymerization after the monomer injection Replenishment of the monomers stored in the unit is easy to minimize the production of defective products.
  • the formation of the binding protrusion enables accurate coupling with the front curve without inclination of the base curve, and the gap formed by the binding protrusion after the polymerization of the monomer and the monomer residue hardened in the monomer storage unit are not separated from each other.
  • hardening it is easy to clean and separate the monomer residues, it is possible to eliminate the difficulty of separation and the occurrence of fine powder and cleaning occurs when formed as a single solidified as one.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention concerne un moule entièrement automatisé pour la production d'une lentille de contact. Plus particulièrement, elle concerne un moule entièrement automatisé permettant de former une lentille de contact, moule dans lequel une partie adjacente à un bord de la lentille de contact est moulée en une forme lisse pour prévenir toute lésion de la cornée lors d'une utilisation par un porteur de lentille de contact, et un espace entre un recouvrement de base et un recouvrement avant est élargi et connecté à une unité de stockage de monomère de telle façon que ladite unité et le monomère restant dans l'espace soient durcis en un seul corps après la polymérisation et soient ainsi facilement démoulés.
PCT/KR2010/003234 2009-06-02 2010-05-24 Moule entièrement automatisé pour la production d'une lentille de contact WO2010140785A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2009-0048381 2009-06-02
KR20090048381 2009-06-02
KR1020100017275A KR101155976B1 (ko) 2009-06-02 2010-02-25 완전 자동화 콘택트렌즈 제조용 주형몰드
KR10-2010-0017275 2010-02-25

Publications (2)

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WO2010140785A2 true WO2010140785A2 (fr) 2010-12-09
WO2010140785A3 WO2010140785A3 (fr) 2011-02-24

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PCT/KR2010/003234 WO2010140785A2 (fr) 2009-06-02 2010-05-24 Moule entièrement automatisé pour la production d'une lentille de contact

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238388A (en) * 1991-12-06 1993-08-24 Johnson & Johnson Vision Products, Inc. Ophthalmic lens mold seal
KR20020047139A (ko) * 1999-09-03 2002-06-21 추후제출 콘텍트 렌즈 제조에 사용하는 몰드
KR20090092781A (ko) * 2006-10-30 2009-09-01 존슨 앤드 존슨 비젼 케어, 인코포레이티드 콘택트 렌즈 생산에 사용하기 위한 주형
KR20090117715A (ko) * 2007-01-31 2009-11-12 존슨 앤드 존슨 비젼 케어, 인코포레이티드 원주 둘레에 배기부를 갖는 안과용 렌즈 금형

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06342135A (ja) * 1993-06-01 1994-12-13 Seiko Epson Corp コンタクトレンズ製造用の樹脂型およびそれを用いたコンタクトレンズの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238388A (en) * 1991-12-06 1993-08-24 Johnson & Johnson Vision Products, Inc. Ophthalmic lens mold seal
KR20020047139A (ko) * 1999-09-03 2002-06-21 추후제출 콘텍트 렌즈 제조에 사용하는 몰드
KR20090092781A (ko) * 2006-10-30 2009-09-01 존슨 앤드 존슨 비젼 케어, 인코포레이티드 콘택트 렌즈 생산에 사용하기 위한 주형
KR20090117715A (ko) * 2007-01-31 2009-11-12 존슨 앤드 존슨 비젼 케어, 인코포레이티드 원주 둘레에 배기부를 갖는 안과용 렌즈 금형

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WO2010140785A3 (fr) 2011-02-24

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