KR101644805B1

KR101644805B1 - Oven Apparatus for Heat Treatment of Contact Lens

Info

Publication number: KR101644805B1
Application number: KR1020150047368A
Authority: KR
Inventors: 박화성
Original assignee: (주)프라임칼라비젼
Priority date: 2015-04-03
Filing date: 2015-04-03
Publication date: 2016-08-02

Abstract

The present invention provides a cornea protection layer and a printing layer on a male mold so as to provide a simple and efficient production process while automating the thermal curing operation uniformly during the manufacturing process of the contact lens, And a curing step of curing the contact lens, wherein the step of curing the contact lens comprises the steps of: a) providing an entrance for guiding the male mold in a row in front; An oven main body having a heat treatment chamber to be set up and set up so as to be able to be set; A plurality of heating means installed in the heat treatment chamber of the oven main body and generating heat to generate a temperature at which hardening processing can be performed; A mold supporting member for supporting and fixing a plurality of male molds introduced through an access path of the oven main body; and a control unit for moving the mold supporting member along a set path in a heat treatment chamber of the oven main body while supporting and fixing the mold supporting member, A mold carrying unit configured by mold carrying means for moving the support member in a caterpillar manner; And an input / output conveying portion located in front of the oven main body and corresponding to the upper side of the access road and capable of linearly reciprocating left and right relative to the access road to move the male mold. .

Description

[0001] Oven Apparatus for Heat Treatment of Contact Lens [0002]

The present invention relates to an oven apparatus for heat treating a contact lens, and more particularly, to an oven apparatus for heat treating contact lenses, which can automate heat curing operations uniformly during the manufacturing process of a contact lens, To an oven apparatus for heat treating a contact lens.

Generally, a contact lens is a small-sized lens used for the purpose such as correcting visual acuity, helping the eye to be treated by wearing in contact with the front face of the user's eye, that is, the cornea, and for the purpose of beauty and the like. (PMMA) lens, a hydrogel lens, a silicone hydrogel, and the like depending on the material. The lens is classified into a spherical lens, an aspherical lens, Lens, and so on.

In recent years, as the quality of life has increased, the human desire has become more interested in endless aesthetic pursuit and well-being. Therefore, contact lens, which is a medical device for vision correction, Contact lenses are being actively developed for continuous demand creation.

Such a color contact lens is manufactured so as to change the color of the iris by coloring the iris according to the shape of the iris in the basic structure of the contact lens for correcting the visual acuity.

Hereinafter, a manufacturing process for a conventional color contact lens will be briefly described. A lower lens portion is formed by polymerizing a monomer as a raw material. An opaque dye and a pigment are used for a lower lens portion to manually draw the iris color of a desired pupil, And then a contact lens is formed on the upper portion of the lower lens portion where the iris coloring portion is formed to form a contact lens, thereby manufacturing a color contact lens.

As a conventional technique disclosed in the related art for manufacturing a color contact lens, Korean Patent Registration No. 562959 (Mar. 14, 2006) discloses a method for manufacturing a color contact lens including an iris- Polymerizing the 2-HEMA monomer on the cover part and applying the same to the iris shape having a radius larger than a predetermined size by using a pad printing method to form a cover part; and forming an iris- A step of forming a colored part by coloring, a step of drying the colored part, a step of filling the mold with 2-HEMA to form a contact lens, and a step of forming a contact lens after the molded mold is separated Accordingly, the color contact lens which can provide the desired color expression of the pupil as well as the natural light and transparency of the worker The manufacturing method is known.

In order to manufacture the color contact lens, the iris-shaped printed layer is thermally cured (heat-treated). To dry the colored printed layer of the contact lens, either the ultraviolet ray irradiation or the dry oven Heat treatment is carried out by using.

However, in the conventional heat treatment of the color contact lens, since the contact lens is accommodated in the limited high-temperature space of the equipment and the contact lens is maintained in a static state in a high-temperature environment, constant curing time is constantly required for a limited number of workings There is a problem that the production efficiency is lowered due to the time lag in the heat treatment process.

In addition, in the conventional heat treatment process, since the contact lens having the print layer formed therein is charged into the oven equipment or the contact lens for removing the heat-treated contact lens from the oven equipment is manually operated, the contact lens must be manufactured on a commercial scale The work is very troublesome because of its nature, and fatigue of the worker is increased, and a lot of time is delayed in the heat treatment work, which makes it difficult to mass-produce.

Furthermore, since a plurality of oven equipments must be constructed in order to achieve mass production of the products, there is a problem that not only the equipment cost for constructing the equipment is large but also labor costs are increased due to the input of a lot of labor.

Patent Registration No. 562959 (Mar. 14, 2006)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a contact lens which can be moved in a caterpillar-type manner and heat-treated while automating the entry / exit operation of a contact lens for heat- It is an object of the present invention to provide an oven apparatus for heat treatment of a contact lens, which can minimize the working time for thermal curing and enhance the productivity of the product, and minimize the facility cost and labor cost of equipment construction.

The contact lens heat treatment oven apparatus proposed by the present invention is a heat treatment oven apparatus for receiving and hardening a contact lens in which a cornea protection layer and a printing layer are successively formed on a male mold, An oven main body having a heating furnace which has an inlet for guiding the inside of the furnace and guides the inside of the furnace so as to maintain a constant curing temperature; A plurality of heating means installed in the heat treatment chamber of the oven main body and generating heat to generate a temperature at which hardening processing can be performed; A mold supporting member for supporting and fixing a plurality of male molds introduced through an access path of the oven main body; and a control unit for moving the mold supporting member along a set path in a heat treatment chamber of the oven main body while supporting and fixing the mold supporting member, A mold carrying unit configured by mold carrying means for moving the support member in a caterpillar manner; And an input / output return unit positioned in front of the oven main body and corresponding to an upper side of the access road, and capable of linearly reciprocating right and left with respect to the access road, thereby moving the male mold.

The oven main body includes an inflow guide path extending in the longitudinal direction at one end of the inflow path and guiding the inflow of the male mold toward the inflow path and an inflow guide path extending in the longitudinal direction on the opposite side of the inflow guide path with respect to the inflow path, And a discharge guide path for guiding the discharge of the male mold from the entrance, wherein the inflow guide path and the discharge guide path each have guide grooves for receiving the lower end of the male mold and movably supporting the male mold while preventing the male mold from being released, .

And a shielding unit installed at a front side of the oven main body and capable of opening and closing an opening surface of the access path, the open side of which is opened or closed according to the presence or absence of work in the heat treatment room.

The shielding unit includes a shielding member slidably movable forward and rearward to open and close the opening surface of the oven main body, and a driving cylinder fixedly installed on the oven main body and applying power to flow the shielding member.

Wherein the heating means generates heat in a temperature range of 100 to 120 ° C in the heat treatment room so that a different temperature environment can be created for each section in the heat treatment room having a plurality of heating means, Temperature.

The mold supporting member of the mold carrying unit is provided with a support groove which is recessed inwardly and is formed to be able to receive the lower end of the male mold.

The mold transporting means of the mold transporting unit includes a plurality of transport sprockets rotatably installed in the oven body and spaced apart from each other along the movement path of the mold support member, A chain conveyor that is extended in the direction of the movement path and supports the mold support member so that the mold support member can be disposed at a predetermined interval, and driving means connected to any one of the plurality of the transfer sprockets to apply power.

Wherein the input / output return section includes: a contact guide member vertically extending toward the access road, the lower end of the contact guide member being capable of contacting the male mold; a contact holding member fixedly supporting an upper end of the contact guide member, And lifting means for lifting and lowering the male mold while supporting and fixing the lifting means, and carrying means capable of reciprocating linearly in the moving direction of the male mold.

The guide means includes a support frame fixedly installed on the oven main body, a guide rail provided on the support frame and extending parallel to the access road and extending along the entering direction of the male mold toward the access road, A conveying member which is movably screwed on the rotating screw and supports the elevating means, a driving motor which applies power to the rotating screw, .

The present invention may further comprise an entrance control unit installed on one side of the front side of the oven main body and capable of opening and closing the entry path of the male mold toward the access road.

The entry control unit includes a blocking pin member configured to be reciprocally movable up and down so as to protrude on the access road, and a cylinder member for applying power for upward and downward linear reciprocating motion of the blocking pin member.

According to the oven apparatus for heat treatment of contact lenses according to the present invention, the caterpillar-type movement is performed along the set movement path in the heat treatment room, and the input / output operation of the contact lens is automated. The uniform quality of the product is uniformed by uniform processing for the heat treatment, the contact lens is continuously circulated in the inlet and the outlet, and the product is thermally cured, thereby improving the productivity of the product and obtaining the effect of mass production.

Further, since the contact lens heat treatment oven apparatus according to the present invention guides the entry / exit of a mold having a contact lens, which is a product thereof, and receives and supports the lower end of the mold, So that it is possible to prevent the mold from escaping and to maintain a more stable operation.

The contact lens heat treatment oven apparatus according to the present invention is configured to open and close the access road according to the presence or absence of the operation of the heat treatment room, thereby preventing heat loss in the heat treatment room, thereby improving the heat treatment efficiency of the product, The maintenance cost of equipment can be reduced.

The contact lens heat treatment oven apparatus according to the present invention is configured to automatically open and close an entrance path of a mold, so that it is possible to efficiently control a work situation by regular supply of a prescribed amount of work while preventing indiscriminate supply of a mold Effect is obtained.

1 is a front view showing an embodiment according to the present invention;
2 is a side sectional view showing an embodiment according to the present invention.
3 (a) and 3 (b) are side cross-sectional views showing an inflow guide path and a discharge guide path according to an embodiment of the present invention, respectively.
4 is a side view showing a shielding unit in an embodiment according to the present invention.
5 is a perspective view showing a mold supporting member according to an embodiment of the present invention;
6 is an enlarged cross-sectional view partially showing a mold carrying part in an embodiment according to the present invention.
7 is a front view of a mold carrying part according to an embodiment of the present invention;
8 is a front view showing an input / output conveying part in an embodiment according to the present invention.
FIG. 9 is a plan view showing an input / output conveying portion in an embodiment according to the present invention. FIG.
10 is a front view showing another embodiment according to the present invention.
11 is a partially enlarged cross-sectional view showing another embodiment according to the present invention.

The present invention provides a heat treatment oven apparatus for receiving and hardening a contact lens in which a corneal protection layer and a printing layer are successively formed on a male mold, the apparatus comprising: an access path for guiding a male mold in a row in front, An oven main body having a heat treatment chamber for accommodating a male mold on the inside thereof and setting and maintaining a constant curing treatment temperature; A plurality of heating means installed in the heat treatment chamber of the oven main body and generating heat to generate a temperature at which hardening processing can be performed; A mold supporting member for supporting and fixing a plurality of male molds introduced through an access path of the oven main body; and a control unit for moving the mold supporting member along a set path in a heat treatment chamber of the oven main body while supporting and fixing the mold supporting member, A mold carrying unit configured by mold carrying means for moving the support member in a caterpillar manner; And an input / output conveying part located in front of the oven main body and corresponding to the upper side of the access road and capable of linearly reciprocating right and left with respect to the access road to move the male mold. .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of an oven for heat treatment of contact lenses according to the present invention will be described in detail with reference to the drawings.

1 and 2, an oven apparatus for heat treating a contact lens according to the present invention includes a contact lens L in which a corneal protection layer and a printing layer are sequentially formed on a male mold M, (10), heating means (20), a mold carrying section (30), and an input / output transfer section (40).

The oven main body 10 is the most basic structure for supporting the general technical constructions of the present invention. The main components including the heating means 20, the mold carrying unit 30 and the input / output carry unit 40 are disposed at respective positions So that it can be mounted.

As shown in FIG. 2, the oven main body 10 includes a space for accommodating male molds M, a heat treatment for forming a high temperature so as to heat the printed layer formed on the male molds M, And a room (11). That is, in the heat treatment chamber 11 of the oven main body 10, the male mold M is received from the outside, and the print layer on the male mold M is set so as to maintain a constant curing treatment temperature so as to be heat-treated.

A heat insulating material 19 capable of blocking the heat loss of the heat treatment chamber 11 is provided inside the wall of the heat treatment chamber 11 in the oven main body 10 so as to maintain a high temperature environment formed through the heating means 20 It is preferable to configure it.

The oven main body 10 is provided with an entrance 13 which is a passage through which the male mold M can enter from the outside toward the heat treatment chamber 11. [

The access road 13 is provided in front of the oven main body 10 and guides the male mold M in a line toward the heat treatment room 11. [

The ramp 13 is elongated in the transverse direction of the male mold M so as to form a path through which the male mold M can be introduced and discharged and the upper surface of the ramp 13 is opened Thereby forming a space in which the input / output conveying unit 40 can be driven.

As shown in FIG. 1, the oven main body 10 includes an inflow guide path 15 and a discharge guide path 16 which are respectively formed at right and left ends with respect to the access path 13.

The inflow guide path 15 is a path for guiding the entrance of the male mold M toward the access path 13 and extends in the longitudinal direction at one end of the access path 13.

The discharge guide path 16 is a path for guiding the discharge of the male mold M from the ramp 13 to the male mold M through the heat treatment chamber 11 of the oven main body 10, Is located on the opposite side of the inflow guide path (15) with respect to the ramp (13) and extends in the longitudinal direction toward the discharge direction of the male mold (M).

As shown in FIG. 3, the inflow guide path 15 and the discharge guide path 16 are respectively provided with a lower end of the male mold M and a lower end of the male mold M, Thereby forming guide grooves 17a and 17b. That is, the guide grooves 17a and 17b accommodate the lower end of the male mold M located on the inflow guide path 15 and the discharge guide path 16, (15) and the discharge guide passage (16) so as to be linearly movable in a line.

As described above, when the inflow guide path 15 and the discharge guide path 16 having the guide grooves 17a and 17b are formed, it is possible to arrange them in a line in the process of entering / It is possible to prevent deviation and to maintain a more stable operation.

The oven main body 10 is provided with a control control box (not shown) capable of controlling whether the heating unit 20, the mold conveying unit 30, the input / output conveying unit 40, C) is installed. That is, the control control box C is provided with an operation source such as various switches and buttons as well as a power switch and is provided with the heating unit 20, the mold carrying unit 30 and the input / output conveying unit 40, So that they can be electrically connected to control the whole equipment.

The oven main body 10 is provided with a plurality of roller wheels at its lower end so that positional movement can be smoothly performed. At least one of the roller wheels is provided with a floor It is preferable to have a supporting member supported in contact with the surface.

As shown in FIGS. 1 and 4, the oven main body 10 includes a shielding unit 50 formed to be capable of opening and closing an open top of the access path 13.

The shielding unit 50 is installed in front of the oven main body 10 and is composed of a shielding member 51 and a driving cylinder 53.

The shielding member (51) is located corresponding to the access road (13) of the oven main body (10). That is, the oven main body 10 is provided so as to open and close the opening surface of the access path 13, and is slidable back and forth by the driving cylinder 53.

The shielding member 51 has a structure in which both ends are extended downward so that the upper opening face of the access path 13 as well as the right and left side faces of the male mold M toward and away from the access path 13 can be opened and closed together Respectively.

The driving cylinder 53 is fixedly mounted on the oven main body 10 and applies power for flowing the shielding member 51. That is, the drive cylinder 53 moves the shielding member 51 back and forth so as to linearly move the shielding member 51 toward the direction in which the access path 13 is formed on the oven main body 10 .

The driving cylinder 53 is provided on the oven main body 10 with two left and right spaced apart portions so as to maintain a stable driving state.

The shielding unit 50 that can open and close the access path 13 according to the presence or absence of the work in the heat treatment chamber 11 can prevent heat loss in the heat treatment chamber 11 to improve the heat treatment efficiency of the product, It is possible to reduce the power consumption of the equipment required for the heating means 20, thereby reducing the maintenance cost of the equipment.

The heating means 20 generates heat at a high temperature in the heat treatment chamber 11 so that the print layer of the contact lens L on the male mold M can be cured .

The heating means 20 is installed in the heat treatment room 11 of the oven main body 10 so as to be spaced apart from each other in the heat treatment room 11 and provided with a plurality of heating means 20 ).

Since the heating means 20 can be applied to a general boiler or the like using a structure of a heater rod or a cartridge heater, the detailed description will be omitted.

The heating means 20 generates heat in the heat treatment chamber 11 so as to have a temperature of 100 to 120 ° C.

The plurality of heating means 20 may be configured to generate heat at the same temperature condition and the plurality of heating means 20 may be configured to generate heat at different temperature conditions.

In the case where the heating means 20 is configured to generate heat at different temperature conditions, the heating means 20 may include a plurality of heating means 20, Each of the means (20) is provided with a heat generating temperature different from each other.

For example, the heating unit 20 generates heat in the heat treatment chamber 11 in the vicinity of the access path 13 in a temperature environment of 100 to 105 ° C, The heating means 20 generates heat in the peripheral region of the disposed heating means 20 so as to provide a temperature environment of 105 to 115 ° C. and the periphery of the heating means 20 disposed at the intermediate point of the heat treatment room 11 The heating means 20 generates heat in a temperature range of 110 to 120 ° C.

If the temperature of the contact lens L is different from that of the heating means 20 in the heat treatment chamber 11, the temperature of the contact lens L can be gradually increased, It is possible to plan the heat treatment work.

The mold carrying unit 30 is provided with a function of moving a predetermined number of male molds M entered on the access path 13 in the heat treatment chamber 11 of the oven main body 10 and then moving them along a constant path .

2, the mold carrying unit 30 includes a mold supporting member 31 for supporting and fixing the male mold M and a mold supporting member 31 for moving the mold supporting member 31 in a caterpillar manner And a mold transfer means 33 for transferring the mold.

As shown in FIG. 2, the mold supporting member 31 has a structure in which a plurality of mold supporting members 31 are arranged on the mold conveying means 33 at regular intervals.

5, a plurality of (20) male molds M extending in the left-right direction and flowing through the access path 13 of the oven main body 10 are provided in the mold supporting member 31, And is formed to be able to support and fix.

As shown in FIGS. 5 and 6, the mold support member 31 is provided with a recessed portion 17a, which is recessed inwardly to receive the lower end of the male mold M in the same manner as the guide grooves 17a and 17b, And a groove (32).

When the male mold M is moved along the movement path of the mold carrying means 33 in the process of transporting the male mold M by the mold supporting member 31 having the support groove 32 as described above, It is possible to prevent damage or poor production of the product due to detachment of the male mold (M).

The mold carrying means 33 moves the mold supporting member 31 while supporting the mold supporting member 31 so as to move the mold supporting member 31 along a predetermined movement path in the heat processing chamber 11 of the oven main body 10 .

The mold conveying means 33 is continuously circulated by a caterpillar method, and the mold supporting member 31 is moved to pass through the access road 13 during movement.

2 and 7, the mold conveying means 33 includes a plurality of conveying sprockets 34 rotatably installed in the oven main body 10, a plurality of conveying sprockets 34 connected to the conveying sprockets 34, A conveyor 35 and a driving means 36 for applying power to the conveying sprocket 34. [

The plurality of transfer sprockets (34) are arranged to be spaced apart from each other along the movement path of the mold supporting member (31). More specifically, the conveying sprocket 34 includes a driving sprocket 34a connected to the driving unit 36 and rotating as the rotational force is applied to the driving sprocket 34a through the chain conveyor 35, And a plurality of driven sprockets 34b rotatably connected to each other.

The transfer sprocket 34 can be applied in various sizes depending on the individual positions.

The conveying sprocket 34 is formed to be slightly movable in a direction in which the chain conveyor 35 extends, and the conveying sprocket 34 is provided with a position (a position) capable of finely adjusting a position mounted on the oven main body 10 It is also possible to arrange the chain conveyor 35 so that the tension of the chain conveyor 35 can be adjusted.

The chain conveyor 35 is elongated in the moving path direction of the mold supporting member 31 so as to be connected to each of the conveying sprockets 34.

The chain conveyor (35) supports a plurality of the mold supporting members (31) so that the mold supporting members (31) can be arranged at a certain interval from each other.

The driving means 36 is fixed to one side of the oven main body 10 and is connected to any one of the plurality of the conveying sprockets 34, that is, to the driving sprocket 34a, and is driven to apply rotational power.

The input / output conveying unit 40 is positioned in front of the oven main body 10 and performs a function of driving the male mold M to flow in or out of the access path 13.

As shown in FIGS. 1 and 2, the input / output return section 40 is provided corresponding to the upper side of the access road 13 in front of the outside of the oven main body 10, So that the male mold M can be moved. That is, the input / output return unit 40 is provided with the ramp (13) so that the male mold (M) located in the inflow guide path (15) can be positioned on the mold supporting member (31) And the male mold M is moved so that the male mold M on the mold supporting member 31 can be discharged through the discharge guide passage 16. [

As shown in Figs. 8 and 9, the input / output conveyance unit 40 includes a contact guide member 41 provided so as to be able to contact the male mold M, Up means 43 for driving the contact guide member 41 and a conveying means 45 for driving the male mold M on the contact guide member 41 to move.

The contact guide member 41 is vertically extended toward the access path 13 and has a lower end so as to be able to contact the male mold M. [

The elevating means 43 fixedly supports the upper end of the contact guide member 41 and drives the contact guide member 41 to reciprocate up and down corresponding to the male mold M. [ That is, the elevating means 43 keeps the contact guide member 41 in an upwardly moved state, and allows the male mold M to flow into the ramp 13 or the male mold M from the ramp 13 And is driven to move the contact guide member 41 downward every time it is discharged.

The conveying means 45 is provided so as to reciprocate linearly in the moving direction of the male mold M while supporting and fixing the elevating means 43.

The conveying means 45 moves the male mold M in a state in which the contact guide member 41 is moved downward by the elevating means 43 so that the contact guide member 41 contacts the male mold M. (45a) fixed on the oven main body (10), and a support frame (45a) provided on the support frame (45a) and parallel to the access road (13) A guide rail 45b formed to extend along the entry direction of the male mold M toward the guide rail 13 and a guide rail 45b which is parallel to the guide rail 45b and rotatably installed on the support frame 45a, A conveying member 45d movably coupled to the rotating screw 45c and supporting the elevating means 43 and a driving motor 45e for applying power to the rotating screw 45c, ).

Preferably, the guide rails 45b are disposed on both sides of the rotary screw 45c with a distance therebetween to guide a more stable movement of the conveying member 45d.

The conveying member 45d is screwed so as to move forward or backward in accordance with the rotating direction of the rotating screw 45c rotating from the driving motor 45e.

10 and 11, another embodiment of the oven apparatus for heat treating contact lenses according to the present invention is provided with a male mold M (hereinafter referred to as " M ") which is provided on one side of the front side of the oven main body 10, And an entrance control unit 60 for controlling the entrance route of the vehicle.

The entry control unit 60 includes a blocking pin member 61 which is vertically reciprocally movable so as to protrude on the inflow guide path 15 which is an inflow path of the male mold M toward the access path 13, And a cylinder member 63 fixedly installed on the oven main body 10 and applying power for upward and downward linear reciprocating motion of the cutoff pin member 61.

When a certain number (20) of male molds (M) flows into the entry path (13), the entry control unit (60) projects the blocking pin member (61) from the cylinder member (63) 13), and when a new mold supporting member (31) is located on the ramp (13), the cylinder member (63) is moved from the cylinder pin (63) So that the male mold (M) can be introduced into the ramp (13).

That is, according to the present invention as in the above-described other embodiments, since the entering path of the male mold (M) can be automatically opened and closed, the work can be efficiently controlled It is possible to do.

In the other embodiments described above, the same configuration as that of the above-described embodiment can be employed, so that detailed description is omitted.

Next, the operation of the oven apparatus for heat treating the contact lens according to the preferred embodiment of the present invention will be described.

First, the male mold (M) having the cornea protection layer and the print layer formed thereon is continuously supplied on the inflow guide path (15), and then the operator of the control control box (C) is operated to move the heating means (20) 30 and the input / output conveyance unit 40 are driven to be driven to start the heat treatment operation.

At this time, the male mold M located on the inflow guide path 15 flows in accordance with the linear movement of the contact guide member 41 of the input-output carry section 40 after the contact guide member 41 makes contact with the entrance ramp 13, The male molds M are sequentially stacked on the mold supporting member 31 located in the housing 13.

Only a certain number (20) of male molds M are loaded on one mold supporting member 31 and the number of male molds M as a mold carrying means 33 of the mold carrying portion 30 is driven The mold supporting member 31 is moved toward the heat treatment chamber 11 in the oven main body 10 and at the same time a new mold supporting member 31 is placed in the access path 13. [

The mold supporting member 31 filled with a certain number of male molds M is moved along the movement path of the mold carrying means 33 and is heated by the heating means 20, The printed layer of the contact lens on the male mold (M) is thermally cured while gradually passing through the room (11).

The mold support member 31 having passed through the set travel path of the heat treatment chamber 11 is again located on the access road 13 and the contact guide member 41 of the input / And then linearly moves toward the discharge guide path 16 to discharge the heat-treated male mold M.

That is, according to the oven apparatus for heat treating the contact lens according to the present invention, since it is configured to move in the caterpillar manner along the set travel path in the heat treatment room and to automate the entry and exit operations of the contact lens as the object of operation, By reducing the scale and manpower, the cost is greatly reduced, the quality of the product is uniformized by uniform processing for heat treatment, the contact lens is continuously circulated and circulated, and the product is thermally cured, It is possible.

Although the preferred embodiments of the oven apparatus for heat treatment of contact lenses according to the present invention have been described above, the present invention is not limited thereto, and various changes and modifications may be made within the scope of the claims, the specification and the accompanying drawings, Are also within the scope of the present invention.

10: oven body 11: heat treatment room 13: ramp
15: inflow guide path 16: discharge guide path 17a, 17b: guide groove
19: heat insulating material 20: heating means 30: mold conveying part
31: mold support member 32: support groove 33: mold conveying means
34: Feeding sprocket 34a: Driving sprocket 34b:
35: chain conveyor 36: driving means 37: position adjusting means
40: input / output conveying portion 41: contact guide member 43:
45: conveying means 45a: support frame 45b: guide rail
45c: rotating screw 45d: conveying member 45e: drive motor
50: shielding unit 51: shielding member 53: drive cylinder
60: entry control unit 61: blocking pin member 63: cylinder member
C: Control control box L: Contact lens M: Male mold

Claims

1. A heat treatment oven apparatus for holding and curing a contact lens in which a cornea protective layer and a printing layer are sequentially formed on a male mold,
An oven main body having an access path for guiding the male molds in a row in front thereof, and a heat treatment chamber for accommodating male molds in the inside and setting and maintaining a constant curing treatment temperature;
A plurality of heating means installed in the heat treatment chamber of the oven main body and generating heat to generate a temperature at which hardening processing can be performed;
A mold supporting member for supporting and fixing a plurality of male molds introduced through an access path of the oven main body; and a control unit for moving the mold supporting member along a set path in a heat treatment chamber of the oven main body while supporting and fixing the mold supporting member, A mold carrying unit configured by mold carrying means for moving the support member in a caterpillar manner;
And an inlet / outlet part located at a front side of the oven main body and corresponding to an upper side of the access road, and capable of linearly reciprocating left and right with respect to the access path, thereby moving the male mold.

The method according to claim 1,
The oven main body includes an inflow guide path extending in the longitudinal direction at one end of the inflow path and guiding the inflow of the male mold toward the inflow path and an inflow guide path extending in the longitudinal direction on the opposite side of the inflow guide path with respect to the inflow path, And a discharge guide passage for guiding the discharge of the male mold from the entrance,
Wherein the inlet guide path and the discharge guide path each include guide grooves for receiving the lower end of the male mold and movably supporting the male mold while preventing the male mold from being detached.

The method according to claim 1,
And a shielding unit installed in front of the oven main body and formed to be openable and closable on the upper opening side of the access path according to the presence or absence of work in the heat treatment room.

The method of claim 3,
The shielding unit may include a shielding member slidably movable back and forth so as to open and close the opening surface of the oven main body and a driving cylinder fixedly installed on the oven main body and applying power for flowing the shielding member Wherein the contact lens is heated to a predetermined temperature.

The method according to claim 1,
Wherein the heating means generates heat in a temperature range of 100 to 120 ° C in the heat treatment room so that a different temperature environment can be created for each section in the heat treatment room having a plurality of heating means, Oven device for heat treatment of contact lenses to create temperature.

The method according to claim 1,
And a support groove formed in the mold support member of the mold carrying unit so as to be recessed inwardly and adapted to receive the lower end of the male mold.

The method according to claim 1,
The mold conveying unit of the mold carrying unit includes a plurality of conveying sprockets rotatably installed in the oven main body and provided at mutually spaced intervals along the movement path of the mold supporting member, A chain conveyor which is extended in the direction of the movement path of the transfer path and which supports the mold supporting member so that the mold supporting member can be disposed at a predetermined interval; and driving means connected to any one of the plurality of the transfer sprockets to apply power, Lens heat treatment oven unit.

The method according to claim 1,
The input / output return unit includes a contact guide member vertically extending toward the access road and having a lower end so as to be able to contact the male mold, and a contact support member fixedly supporting the upper end of the contact guide member, And a conveying means provided so as to be able to linearly reciprocate in the moving direction of the male mold while loading and unloading the male mold while supporting and fixing the elevating means. The contact lens heat treating oven apparatus .

The method of claim 8,
Wherein the conveying means comprises a support frame fixedly installed on the oven main body, a guide rail provided on the support frame and extending parallel to the access road and extending along the entrance direction of the male mold toward the access road, A conveying member which is movably screwed on the rotary screw and supports the elevating means, a conveying member which is parallel to the guide rail and is rotatably installed on the support frame, And a motor for heating the contact lens.

The method according to any one of claims 1 to 9,
Further comprising: an entrance control unit installed on one side of the front side of the oven main body for controlling opening / closing of an entrance path of the male mold toward the entrance road.

The method of claim 10,
Wherein the entry control unit comprises a cut pin member formed to be vertically reciprocable so as to protrude on the access road and a cylinder member for applying power for up and down reciprocating motion of the cut pin member, For example.