KR101785572B1 - Auto Dual Layer Mold Printing System for Contact Lens Production - Google Patents

Abstract

The purpose of the present invention is to provide an automatic dual layer mold printing system for contact lens molding which reduces working hours for mold printing and efficiently prints patterns of a dual layer printing layer on the surface of a casting mold. The automatic dual layer mold printing system of the present invention comprises: an index rotation part including a turntable in which a plurality of seating stages are installed such that a male mold is supportably formed on top portions of the seating stages, which supports the seating stages such that the plurality of seating stages are radially positioned at predetermined intervals, and which is installed to be rotated, and a rotation driving unit which is installed to be connected to a bottom portion of the turntable and applies rotational power to the turntable; a mold loading part which supplies one or more male molds toward the seating stages of the index rotation part to seat the male molds on the seating stages such that the mold loading part supplies the male molds onto divided positions of the seating stages to be loaded; a mold cleaning part which is fixedly installed at a location of the rotation index part corresponding to the turntable and injects air toward the male molds supplied from the mold loading part; mold printing parts including a stamp module in which a printing pad is installed to enable iris patterns to be printed on the surface of the male molds seated on the seating stages of the index rotation part; and a mold unloading part which picks up and transfers the male molds having the iris patterns printed thereon by the mold printing parts from the seating stages to take out the iris pattern-printed male molds. The automatic dual layer mold printing system of the present invention comprises a plurality of the mold printing parts which are disposed in the index rotation part corresponding to a rotation path of the turntable at intervals from each other to sequentially repeat a printing process for dual layer printing, and ink drying parts which are formed between the mold printing parts correspondingly to the seating stages to dry the printing layer on the male molds.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dual layer automatic mold printing system for contact lens molding,

The present invention relates to a dual-layer automatic mold printing system for contact lens molding, and more particularly, to a dual-layer automatic mold printing system for contact lens molding that automates the dual layer pattern printing process of a mold in a molding process of a contact lens, Layer automatic mold printing system for contact lens molding capable of efficiently printing the pattern of the dual layer print layer on the mold mold surface.

In general, eyeglasses or contact lenses are used as means for correcting the deteriorated visual acuity of the eyes. In the case of the contact lenses, the contact lenses are used to directly contact the cornea of the user's eyes. For the purpose of doing so.

Such contact lenses are divided into hard type and soft type lenses. In the case of hard type contact lenses, there is a disadvantage in that it is difficult to produce a foreign object and mass production, and a manufacturing cost is high. Therefore, a soft type lens A soft type contact lens is widely used in the market.

Further, in the case of a soft lens, it is divided into a general clear lens and a color lens depending on whether the lens is colored or not, and since the color lens is divided into 1 to 3 tones according to the number of colors to be colored, In the case of a contact lens, the contact lens for correcting the visual acuity is manufactured so as to change the iris color by coloring the iris according to the shape of the iris.

A typical contact lens manufacturing method is a method of manufacturing a contact lens in which a predetermined amount of molding liquid is injected into a molding groove formed in an arm mold of a mold and then a male mold is pressed into a molding groove of an arm mold to heat and dry the molding liquid, , And then the mold is solidified and the contact lens is demolded.

In the case of a color contact lens, a process of making a transfer layer in which various patterns or patterns are printed on the surface of the male mold before molding the contact lens is preceded, and a variety of contact lenses So that a shape or a pattern is produced. That is, when the male mold having the transfer layer formed thereon is pressed against the molding groove of the female mold into which the molding liquid has been injected, the transfer layer printed on the surface of the male mold during the press molding process through the male mold, To be transferred to a molded article of a lens.

However, in the conventional printing process of printing a transfer layer on the surface of a male mold, a worker manually inserts or takes out a mold directly to carry out a printing operation, resulting in a problem in that work efficiency, productivity and product quality are significantly deteriorated due to manual work.

In order to solve the above-mentioned problems, there has been proposed, as a conventional technique, a rotary mold jig supply device for sequentially supplying mold jigs one by one to the Korean Registered Patent No. 1050192 (July 12, 2011) The mold jig, which is sequentially supplied one by one from the apparatus, is supplied from one end of a line-shaped print lane, horizontally moves the supplied plurality of mold jigs along the line-shaped print lane, And a plurality of first mold-jig prints through the first color printer are horizontally moved along the line-shaped print lines to form a first color printing position, And a second conveying device for successively horizontally conveying the second color printing position to a second color printing position located below the two- A third conveying device that sequentially horizontally conveys the plurality of mold jigs printed in the second color through the second color printer toward the other end of the print lane; And a mold jig discharging unit that receives the mold jig horizontally transported toward the end of the mold jig. The automatic color printing apparatus of the contact lens can improve the productivity and automatize the manufacturing cost by automating the operation.

However, in the case of the conventional contact lens printing apparatus, only the supply and extraction operations of individual molds are mechanically automated. Recently, a dual-layer printing (double-layer printing) it is difficult to manufacture a contact lens to which printing technology is applied and only two color prints can be continuously carried out. Therefore, when printing is carried out on a contaminated mold, And when the secondary color printing is performed on the surface of the primary color printed mold as it is, there is a problem that the quality of the product is remarkably lowered due to the ink blurring phenomenon.

Further, in the conventional printing apparatus, since the position control is performed by using the cylinder in the driving structure of the printing press for printing the pattern on the surface of the mold, there is a problem in that it is difficult to precisely control and correct the position in accordance with the driving operation.

KR Patent Publication No. 10-1050192 (July 12, 2011)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to automate all processes for mold printing from the loading process of the male mold to the unloading process of the printed male mold through the pattern printing process, The productivity of the product can be minimized while improving the productivity of the product. Further, since the surface of the male mold is cleaned before printing the transfer layer on the male mold supplied from the outside, the production defective rate is lowered and the product having the triple- The present invention provides a contact lens forming dual layer automatic mold printing system capable of uniformly manufacturing and producing contact lenses of high quality.

In addition, since the present invention is configured to dry a male mold while sequentially printing a print layer to which a dual layer printing technology is applied, a dual layer automatic mold printing for contact lens molding System.

In addition, the present invention provides a dual layer automatic mold printing system for contact lens molding, which is capable of improving the accuracy of position adjustment while smoothly performing positional correction, because the drive structure is controlled numerically according to the forward, backward, and up and down movement distances of the printing press.

The present invention provides a dual-layer automatic mold printing system for contact lens molding, comprising: a mounting stage for mounting a male mold on an upper portion of the mounting stage; a plurality of the mounting stages supported so as to be radially spaced apart; And a rotation driving unit connected to a lower portion of the turntable and adapted to apply a rotational force to the turntable; A mold loading unit for supplying at least one male mold to the seating stage of the indexing unit and seating the seating unit on the seating position for loading the seating stage; A mold washing unit fixedly installed at a corresponding position of the turntable in the indexing unit and injecting air toward the male mold supplied from the mold loading unit; A mold printing unit including a stamping module having a printing pad for printing an iris pattern on the surface of a male mold mounted on a seating stage of the indexing unit; And a mold unloading unit for picking up and ejecting an a-mold on which an iris pattern is printed from the mold printing unit from the seating stage, wherein the mold printing unit is provided with a dual layer corresponding to a rotating path of the turntable in the indexing unit, The ink is dried so as to be able to dry the printing layer on the male mold in correspondence with the mounting stage between the mold printing portions, ≪ / RTI >

The indexing portion is provided with a seating end protruding from the upper portion of the seating stage to form an adsorption hole that is vertically penetrated so that the male mold can be fitted and seated, And a connection pipe for connecting the through hole of the turntable and the suction path of the seating stage to each other.

In addition, the index rotation unit is provided in correspondence with the position of the mold printing unit, and is provided corresponding to the lower portion of the turntable and contacts the through hole of the turntable to generate a suction force, It is possible to further include a mold suction unit configured to generate a suction force.

The mold suction unit includes suctioning means for generating a vacuum suction force corresponding to the upper portion, suction drive means for supporting the suction means and linearly moving the suction means in the vertical direction so as to be in contact with the through holes of the turntable, .

The mold loading unit includes a mold supply unit for accommodating a plurality of male molds at an upper portion thereof and sequentially supplying male molds one by one, and a mold supply unit for reciprocating between the mold supply unit and the indexing rotary unit, And a mold transfer unit for transferring the transfer material toward the seating stage of the indexing portion.

The mold transfer unit includes loading pick-up means for vacuum-sucking the male mold supplied from the mold supply unit, loading and raising means for raising and lowering the position of the loading pick-up means so as to be vertically movable, And is capable of reciprocating linearly back and forth from the position of the mold feeding unit toward the seating stage of the indexing portion to constitute a loading and conveying means for conveying the male mold.

The mold cleaning unit includes a cleaning plate provided with a mold receiving groove for accommodating a male mold and corresponding to a seating stage of the turntable and capable of being cleaned while receiving a male mold, And a cleaning and elevating means for vertically moving the cleaning plate correspondingly to the cleaning plate, wherein the cleaning plate is provided with air injection means for injecting air toward the male mold housed in the mold receiving groove, Thereby forming a foreign body removing means for sucking the foreign body so as to remove the foreign body.

The stamp printing unit includes a stamp supply unit for fixing a stamp plate having a print pattern formed thereon, the stamp supply plate being capable of supplying ink to the stamp plate; And a setting control unit for numerically inputting and controlling the flow distance of the printing unit. The printing unit includes a printing unit for printing a pattern on a surface of a male mold placed on the printing unit.

Wherein the stamp supply unit includes a stamp jig for supporting and supporting the stamp plate and a drive unit for driving the stamp jig to move the stamp jig from the ink supply position to a position corresponding to the stamp module, And a cylinder.

Wherein the print unit includes a lift module for vertically movably mounting the stamp module at a lower portion thereof and a print elevator for constituting a first servo motor installed to apply power for vertically moving the elevator module, And a printing conveying unit configured to support the printing elevating unit and configured to move forward and backward, and a second servomotor configured to apply power for rectilinear movement of the traveling module, wherein the printing elevating unit The first servomotor and the second servomotor of the printing and conveying means are configured to receive a numerical control signal of a coordinate value input to the setting control unit and to drive the same.

Wherein the mold printing unit includes an ink cleaner provided on a flow path of the print unit and capable of removing contaminated ink on a print pad of the stamp module, Controls the print unit according to a signal, and controls the ink to flow through the ink cleaner when the print unit is in operation.

The ink drying unit includes a support frame, and heating means provided on the support frame, for ejecting air supplied from the outside toward the print layer of the male mold, and heating the outside air with hot air.

The unloading and elevating unit includes unloading pick-up means for vacuum-sucking the male mold on the seating stage, unloading elevating means for elevating and lowering the position of the unloading pick-up means so as to be vertically movable, The unloading and conveying means for linearly reciprocating in the back and forth direction toward the male mold take-out direction at the position of the seating stage to constitute unloading and conveying means for conveying the male mold.

According to the dual-layer automatic mold printing system for contact lens molding according to the present invention, since all the printing processes for cleaning the mold loaded from the outside and printing and unloading the transfer layer are fully automated, not only the operation is very simple, It is possible to improve the quality of the product by removing the foreign substances on the surface of the mold before the printing operation while reducing the labor cost, and it is possible to improve the productivity of the product by collectively processing the printing job of the mold without additional work . Further, the printing process for the dual layer printing having the triple print layer is sequentially repeated to widen the range of the technical function that can be performed, and to obtain the effect of improving the quality of the product.

In addition, since the dual layer automatic mold printing system for contact lens molding according to the present invention dries each print layer every time the multi-layer print layer is printed, it is possible to produce a product of excellent print quality while reducing the defect rate of the product have.

Further, since the dual-layer automatic mold printing system for contact lens molding according to the present invention is configured to numerically control the flow distance of the stamp module, the positional correction to the printing point toward the mold is very easy, There is an effect that can be made.

Further, in the dual layer automatic mold printing system for contact lens molding according to the present invention, since the male mold is vacuum-sucked and fixed at the position of the printing operation by the mold printing unit, the mold is pressed against the stamp module It is possible to prevent the sticking or moving phenomenon and to produce the product quality and good product.

1 is a plan view showing an embodiment according to the present invention;
2 is a plan view showing a seating stage of an indexing portion in an embodiment according to the present invention;
3 is a front view partially showing an indexing portion including a mold suction unit according to an embodiment of the present invention;
4 is a front view showing a mold loading unit in an embodiment according to the present invention.
5 is a front view of the mold washing unit according to an embodiment of the present invention;
Fig. 6 is a front view showing an ink drying unit according to an embodiment of the present invention; Fig.
7 is a front view showing a mold printing unit in the embodiment according to the present invention.
8 is a side view showing a mold printing unit according to an embodiment of the present invention.
9 is a front view of the mold unloading portion in an embodiment according to the present invention.

The present invention provides a turntable comprising a turntable having a seating stage for supporting a male mold on an upper portion of the turntable and rotatably supporting a plurality of the seating stages so that the seating stages can be spaced radially, And a rotation driving means for applying a rotational force to the turntable; A mold loading unit for supplying at least one male mold to the seating stage of the indexing unit and seating the seating unit on the seating position for loading the seating stage; A mold washing unit fixedly installed at a corresponding position of the turntable in the indexing unit and injecting air toward the male mold supplied from the mold loading unit; A mold printing unit including a stamping module having a printing pad for printing an iris pattern on the surface of a male mold mounted on a seating stage of the indexing unit; And a mold unloading unit for picking up and ejecting an a-mold on which an iris pattern is printed from the mold printing unit from the seating stage, wherein the mold printing unit is provided with a dual layer corresponding to a rotating path of the turntable in the indexing unit, The ink is dried so as to be able to dry the printing layer on the male mold in correspondence with the mounting stage between the mold printing portions, A second layer automatic mold printing system for forming a contact lens is disclosed.

Next, a preferred embodiment of a dual layer automatic mold printing system for contact lens molding according to the present invention will be described in detail with reference to the drawings.

1, an embodiment of a dual layer automatic mold printing system for contact lens molding according to the present invention includes an indexing unit 100, a mold loading unit 200, a mold washing unit 300, A mold printing unit 400, and a mold unloading unit 600.

The indexing unit 100 may print the print layer on the surface of the male mold M until the male mold M supplied from the mold loading unit 200 is taken out through the mold unloading unit 600 And sequentially moves the male molds M in accordance with the operation process so as to pass through the technical configurations of all the processes (for example, the mold washing section 300 and the mold printing section 400).

As shown in FIG. 1, the indexing unit 100 includes a turntable 120 having a circular plate shape and installed to be rotatable, and an indexing unit 120 connected to a lower portion of the turntable 120, And rotational driving means 130 for applying a rotational force.

The turntable 120 is configured to allow a plurality of seating stages 110 to be radially positioned at an upper portion thereof. That is, the turntable 120 is provided to support the seating stage 110, and eight seating stages 110 are disposed at an angle of 45 ° with respect to the radial direction of the turntable 120 with respect to the center axis of the rotation driving means 130 And is installed to be positioned at every angle.

As shown in FIGS. 2 and 3, the seating stage 110 supports the male mold M supplied from the mold loading unit 200 so as to be capable of supporting the upper mold. That is, the seating stage 110 is formed with a seating end 111 which is protruded upward to be fitted with the male mold M.

The seating stage 110 has a block shape, and is structured as a block member divided into upper, lower, and lower blocks, and is movably coupled to each other. Each block member is finely adjustable in the X- or Y- And a plurality of fine adjustment members 117 are provided.

For example, in the seating stage 110, the upper block body 110a is movably coupled in the X-axis direction from the interrupted block body 110b, while the interrupted block body 110b is coupled to the lower block body 110c, And the position of the seating end 111 to which the male mold M is fixed is adjusted in the X-axis direction and the Y-axis direction through the fine adjustment member 117, The position of the end portion 111 is finely adjusted.

3, the indexing unit 100 is formed with a suction hole 113 formed in a vertical direction on the seating end 111 of the seating stage 110, (115) for forming a path through which fluid (air) can flow in correspondence to the suction holes (113) of the seating end (111).

The turntable 120 is provided with a through hole 121 penetrating in the up and down direction and connected to the through hole 121 of the turntable 120 and the suction path 115 of the seating stage 110 The suction passage 115 and the suction hole 113 of the seating stage 110 communicate with each other to form a path through which the air can flow.

3, the indexing unit 100 is provided corresponding to the lower portion of the turntable 120 and is provided corresponding to the through hole 121 of the turntable 120, and the seating end portion 111 The suction suction hole 113 of the mold suction unit 140 is configured to generate a vacuum suction force.

The mold suction unit 140 is disposed to correspond to the turntable 120 at a position where the mold printing unit 400 is located.

The mold suction unit 140 has a structure capable of generating a suction force in contact with the through hole 121 of the turntable 120 and includes a suction unit 141 for generating a vacuum suction force corresponding to an upper portion of the mold suction unit 140, 141) and constitute a suction drive means (143) for driving to be in contact with the through hole (121) of the turntable (120).

The suction driving means 143 drives the suction means 141 to move linearly in the vertical direction and the suction driving means 143 drives only the printing operation of the mold printing portion 400 Since the sucking means 141 is vertically moved so as to be in contact with the through hole 121 of the turntable 120, the male mold M located at the seating end 111 during the printing operation through the mold printing unit 400, It is possible to hold the mold in an adsorbed state.

When the mold suction unit 140 is configured as described above, the male mold M is vacuum-adhered and fixed at the position of the printing operation by the mold printing unit 400, so that when the pressing operation for printing is performed, It is possible to produce the quality of the product and produce the good product.

The rotation driving means 130 rotates the turntable 120 so that the turntable 120 can be repeatedly rotated by dividing the turntable 120 at an angle of 45 degrees so that the operation in each step toward the male mold M It can be done step by step.

The mold loading unit 200 performs a function of loading the male mold M toward the seating stage 110 of the indexing unit 100.

In the mold loading unit 200, at least one male mold M is fed toward the seating stage 110 to be seated. That is, the mold loading unit 200 may be configured to supply only one male mold M in a single transfer process, or to supply a plurality of male molds M at a time.

The mold loading unit 200 is a structure that drives the male mold M to be supplied at a divided position to be loaded on the seating stage 110, that is, a position corresponding to the seating end 111 of the seating stage 110 A mold supply unit 210, and a mold transfer unit 220.

The mold supply unit 210 is spaced apart from the turntable 120 of the indexing unit 100 and accommodates a plurality of male molds M supplied from the outside.

The mold supply unit 210 is configured to sequentially supply the male molds M one by one toward a position corresponding to the mold transfer unit 220. In general, It is possible to carry out the present invention with the same structure and configuration as those of the known feeding device which sequentially feeds at the same time with the alignment, and thus detailed description thereof will be omitted.

The mold transfer unit 220 is positioned between the mold supply unit 210 and the indexing unit 100 and is positioned at the position of the mold supply unit 210 so that the mold The male mold M is picked up from the mold supply unit 210 and the male mold M is transported toward the seating stage 110 of the indexing pivot portion 100 .

As shown in FIG. 4, the mold transferring unit 220 includes loading pick-up means 221 for generating an attracting force toward the male mold M, and transfer means for transferring the position of the loading pick-up means 221 up and down and back and forth The loading and elevating means 223 and the loading and conveying means 225.

The loading pick-up means 221 is provided corresponding to the male mold M supplied from the mold supply unit 210 and is formed so that the male mold M can be vacuum-adsorbed and held in a transportable pickup state. That is, although not shown in the drawing, the loading pick-up means 221 has at least one suction hole for generating a suction force at a lower portion thereof, and a vacuum line for generating a suction force is connected to the upper end of the suction hole.

The loading and elevating means 223 lifts and moves the position of the loading pick-up means 221 so as to be able to move in the up-and-down vertical straight line direction.

The loading and conveying means 225 includes a fixing bracket 226 for supporting and fixing the loading and elevating means 223 on which the loading pick-up means 221 is mounted, The male mold M is transferred to a position facing the seating stage 110 of the pedestal 100, and is configured to be linearly reciprocating forward and backward. That is, the loading and conveying means 225 is configured to receive the pick-up male mold M vacuum-adsorbed at the position of the mold supply unit 210 through the loading pick-up means 221, (110), and then is driven back and forth in a linear direction so as to return to the position of the mold supply unit (210).

The mold washing unit 300 blows air toward the male mold M supplied from the mold loading unit 200 to clean foreign substances (e.g., dust) adhering to the surface of the male mold M Function.

As shown in FIGS. 1 and 5, the mold washing unit 300 is fixedly installed at a corresponding position of the turntable 120 of the indexing unit 100, (310) and the cleaning lifting means (320).

The cleaning plate 310 is located on the upper side of the seating stage 110 of the turntable 120 and the lower end of the cleaning plate 310 is recessed corresponding to the seating end 111 of the seating stage 110 And a mold accommodating groove 311 for accommodating the male mold M and forming a washable space therein.

The cleaning plate 310 is provided with air injection means 313 and foreign material removing means 315 as means for cleaning the male mold M located in the mold receiving groove 311.

The air injection means 313 injects air toward the male mold M housed in the mold receiving groove 311 to clean the surface of the male mold M. [ The air injection means 313 forms an air injection path 313a communicating with the mold receiving groove 311 on the cleaning plate 310 and injects compressed air into the air injection path 313a And an air supply unit 313b for generating air.

The foreign body removing means 315 is a structure which is integrally driven together with the air injection means 313, and generates a vacuum on the mold receiving groove 311, and sucks so as to remove foreign matter. That is, foreign matter on the surface of the male mold (M) blown by the air injecting means (313) is sucked, so that it is possible to discharge the foreign matter so as to be completely removed from the washable space in the mold receiving groove (311).

The foreign substance removing means 315 forms a vacuum suction path 315a communicating with the mold receiving groove 311 in the vertical direction on the cleaning plate 310 and is connected to the vacuum suction path 315a through a vacuum And a vacuum inhaler 315b for generating a suction force in a state where the suction force is generated.

The cleaning and elevating means 320 is coupled to support one end of the cleaning plate 310 and drives the cleaning plate 310 to vertically move corresponding to the seating stage 110. For example, when the seating stage 110, which is normally located at an interval corresponding to the upper side of the turntable 120 and is supplied with the male mold M from the mold loading unit 200, is moved and positioned, The means 320 descends the cleaning plate 310 to a position where the male mold M in the mold receiving groove 311 of the cleaning plate 310 can be received and cleans the male mold M And drives the cleaning plate 310 to move upward.

The mold printing part 400 is moved through the mold washing part 300 and prints an iris pattern on the surface of the male mold M which is seated on the seating stage 110 of the indexing part 100 Function.

Since the mold printing unit 400 is provided with a plurality of (three in FIG. 1) spacing corresponding to the rotation path of the turntable 120 in the indexing unit 100, ), The printing process for the dual layer printing can be sequentially and repeatedly performed. That is, the mold printing unit 400 is configured to print a triple complex print layer since the print layer having different patterns on one male mold M proceeds three times.

In order to dry each print layer sequentially printed on the male mold M, the ink droplets M are placed in correspondence with the seating stage 110 on the turntable 120 between the plurality of mold printing portions 400, (500). For example, as shown in FIG. 1, the print layers are arranged between the mold printing portions 400, so that the print layer immediately after the first printing is first dried before the second printing, And the print layer is dried again.

As shown in FIG. 6, the ink drying unit 500 includes a support frame 510 fixedly installed on a position higher than the seating stage 110, and a support frame 510 installed on the support frame 510 to generate hot air And a heating means (520).

The heating means 520 is vertically mounted on the support frame 510 in correspondence with the position of the male mold M located on the seating stage 110, Hole 521 as shown in Fig.

The heating means (520) heats the air supplied from the outside by heating the air injection hole (521) to a set temperature. That is, the heating unit 520 heats the outside air to generate hot air, and at the same time, blows hot air toward the print layer of the male mold M to dry the print layer on the male mold M.

When the ink drying unit 500 is constructed as described above, since each print layer is dried every time the multi-layer print layer is printed, it is possible to apply the dual layer printing more efficiently and to reduce the defective rate of the product, It is possible to produce products.

7 and 8, the mold printing unit 400 includes a stamp module 410 in which a printing pad 415 is installed to print an iris pattern, a printing pad 415 of the stamp module 410, A stamp supply unit 420 provided so as to be able to receive ink of a printing pattern on the surface of the male mold M and a print unit 410 mounted on the stamp module 410 to position the print layer on the surface of the male mold M 430, and a setting control unit 440 for controlling the print unit 430.

The stamp module 410 is mounted on the lower part of the stamping module 410 so as to correspond to the male mold M on the seating stage 110 so that the printing pad 415 can be replaced.

The stamp supply unit 420 includes a stamp plate 421 having a print pattern formed thereon and an ink supply unit 420 for supplying ink to the stamp plate 421 at an upper side of the stamp plate 421, Thereby constituting a nozzle 427.

The stamp supply unit 420 includes a stamp jig 423 for supporting and fixing the stamp plate 421 and a drive cylinder 425 for driving the stamp jig 423 to move the position of the stamp jig 42 back and forth.

The driving cylinder 425 is connected to the stamping jig 423 at one end so that the stamping jig 423 moves forward and backward from the position of the ink supply nozzle 427 as the ink supply position to the position corresponding to the stamp module 410 And the stamp jig 423 linearly moves so as to move in position.

The print unit 430 can print a pattern on the surface of the male mold M located on the seating stage 110 after the stamp module 410 is mounted and the ink is applied by the stamp supply unit 420 The stamp module 410 is vertically and horizontally moved in the vertical direction, and includes the print elevating means 431 and the print transfer means 433.

The printing elevating means 431 includes a stamping module 410 fixed to a lower portion thereof and a printing pad 415 mounted on the stamping module 410. The printing pad 415 is mounted on the seating stage 110, And a vertically movable vertical transfer module 431a vertically movable so as to be able to contact the stamp plate 421 of the stamp supply unit 420. The vertically movable module 431a can be vertically moved And a first servo motor 431b provided for the first servo motor 431b.

The printing conveying means 433 includes a traveling module 433a which is supported by the printing elevating means 431 and is moved in a forward and a backward direction and a driving module 433a which is installed to apply power for rectilinear movement of the traveling module 433a 2 servo motor 433b.

The setting control unit 440 controls the flow distance of the print unit 430, that is, the up and down flow distance of the print unit 430 through the print elevating unit 431, Is input and numerically controlled. That is, the first servo motor 431b of the print elevating means 431 and the second servo motor 433b of the print transfer means 433 are controlled by the numerical control signal of the coordinate value input to the setting control unit 440 As shown in FIG.

By configuring the mold printing unit 400 as described above, the flow distance of the stamp module 410 is numerically controlled, so that it is very easy to correct the position to the printing point toward the mold, and it is possible to improve the working accuracy at the time of printing .

As shown in FIG. 8, the mold printing unit 400 may be provided with a print unit 430, which is provided on the flow path of the print unit 430 and is capable of removing contaminated ink on the print pad 415 of the stamp module 410 Thereby forming an ink cleaner 450 that is provided to the ink cartridge.

The ink cleaner 450 is provided with a supply roller 451 which removes the tape and uses the tape to remove the tape, And a plurality of auxiliary rollers 455 for supporting the tape to an extended position toward the flow path of the stamp module 410.

The ink cleaner 450 is provided with a driving motor 457 for rotating the collecting roller 453 in order to collect the tape and the supplying roller 451 is rotated by the rotation of the collecting roller 453 So that it can rotate naturally by the pulling action.

The mold printing unit 400 controls the print unit 430 according to an input signal through the setting control unit 440 so that the ink is passed through the ink cleaner 450 when the print unit 430 flows . For example, only when the set signal is applied through the setting control unit 440, the printing pad 415 of the stamp module 410 is connected to the print unit (not shown) of the ink cleaner 450 430).

The ink cleaner 450 is configured as described above to automate the ink removing operation of the print pad 415, thereby facilitating the operation, reducing the tact time of the process and improving the productivity, It is possible to further improve the printing efficiency by the ink removing operation.

The mold unloading unit 600 performs a function of picking up and ejecting the male mold M on which the iris pattern is printed from the mold printing unit 400 from the seating stage 110.

The mold unloading unit 600 is driven to take out the male mold M at a divided position to unload the seating stage 110, that is, at a position corresponding to the seating end 111 of the seating stage 110 And a table T capable of accommodating a plurality of male molds M is provided at a take-out position of the male mold M due to the mold unloading unit 600. [

9, the mold unloading portion 600 includes unloading pick-up means 610 for generating an attracting force toward the male mold M, and an unloading pick-up means 610 for moving the position of the unloading pick-up means 610 up, The unloading and elevating means 620 and the unloading and conveying means 630 are provided.

The unloading pick-up means 610 is provided corresponding to the upper side of the seating stage 110 and is formed so as to be able to hold the male mold M in a pick-up state in which vacuum suction is carried out and transported. That is, the unloading pick-up means 610 is provided with a suction hole and a vacuum line in the same manner as the loading pick-up means 221 of the mold loading portion 200.

The unloading and elevating means 620 lifts and moves the position of the unloading pick-up means 610 in a vertically and vertically straight direction.

The unloading and conveying means 630 includes a supporting bracket 635 for fixing the unloading elevating means 620 on which the unloading pick-up means 610 is mounted, To the position where the table T of the male mold M is provided, and is capable of reciprocating linearly forward and backward. That is, the unloading and conveying means 630 takes out the male molds M picked up by vacuum suction from the position of the seating stage 110 through the unloading pick-up means 610 toward the separate table T And is then driven in the forward and backward linear directions so as to return to the position of the seating stage 110 in which the male mold M can be taken out.

That is, according to the dual-layer automatic mold printing system for forming a contact lens according to the present invention having the above-described structure, since all the printing processes for cleaning the mold loaded from the outside and printing and unloading the transfer layer are fully automated, It reduces labor costs by reducing the number of laborers as well as simplicity, while eliminating foreign matter on the surface of the mold before the printing operation to improve the quality of the product and to produce good products, and to process the printing jobs of the molds in a batch without any additional work, Can be improved. Further, the printing process for the dual layer printing having the triple print layer is sequentially repeated, thereby widening the range of the technical function that can be performed and improving the quality of the product.

Although the preferred embodiment of the dual layer automatic mold printing system for contact lens molding according to the present invention has been described above, the present invention is not limited to this, and various modifications may be made within the scope of the claims, And this is also within the scope of the present invention.

100: Indexing section 110: Seating stage
111: a seating end 113: a suction hole 115:
120: Turntable 121: Through hole 123: Connector
130: rotation drive means 140: mold suction unit 141: suction means
143: Suction drive means 200: Mold loading unit 210: Mold supply unit
220: mold transfer unit 221: loading pick-up means 223: loading and elevating means
225: loading transfer means 300: mold cleaning unit 310: cleaning plate
311: mold receiving groove 313: air injecting means 315: foreign material removing means
400: mold printing section 410: stamping module 415: printing pad
420: stamp supply unit 421: stamp plate 423: stamp jig
425: driving cylinder 427: ink supply nozzle 430: print unit
431: print elevating means 431a: elevating conveying module 431b: first servo motor
433: print transfer means 433a: running module 433b: second servomotor
440: Setting control unit 450: Ink cleaner 451: Feed roller
453: Collection roller 455: Auxiliary roller 457: Drive motor
500: ink drying unit 510: support frame 520: heating means
600: Mold unloading portion 610: Unloading pick-up means 620: Unloading elevating means
630: Unloading transfer means M: Male mold

Claims (13)

A turntable having a seating stage for supporting a male mold on an upper portion of the turntable and rotatably installed to support a plurality of the seating stages so as to be spaced radially from each other; And a rotation driving means for applying a rotational force to the rotating shaft. A mold loading unit for supplying at least one male mold to the seating stage of the indexing unit and seating the seating unit on the seating position for loading the seating stage; A mold washing unit fixedly installed at a corresponding position of the turntable in the indexing unit and injecting air toward the male mold supplied from the mold loading unit; A mold printing unit including a stamping module having a printing pad for printing an iris pattern on the surface of a male mold mounted on a seating stage of the indexing unit; And a mold unloading unit for picking up and ejecting an a-mold on which an iris pattern is printed from the mold printing unit from the seating stage, wherein the mold printing unit is provided with a dual layer corresponding to a rotating path of the turntable in the indexing unit, The ink is dried so as to be able to dry the printing layer on the male mold in correspondence with the mounting stage between the mold printing portions, , ≪ / RTI >
The indexing portion is provided with a seating end protruding from the upper portion of the seating stage to form an adsorption hole that is vertically penetrated so that the male mold can be fitted and seated, And a connection pipe connecting the through hole of the turntable and the suction path of the seating stage to each other, wherein the connection pipe connects the through hole of the turntable and the suction path of the seating stage,
The index swiveling portion is provided corresponding to the position of the mold printing portion and is provided corresponding to the lower portion of the turntable. The index swiveling portion is in contact with the through hole of the turntable to generate a suction force. Thus, a vacuum suction force And a mold suction unit configured to generate the mold suction unit,
The mold suction unit includes suctioning means for generating a vacuum suction force corresponding to the upper portion, suction drive means for supporting the suction means and linearly moving the suction means in the vertical direction so as to be in contact with the through holes of the turntable, , ≪ / RTI >
The mold cleaning unit includes a cleaning plate provided with a mold receiving groove for accommodating a male mold and corresponding to a seating stage of the turntable and capable of being cleaned while receiving a male mold, And washing up / down means for vertically moving the washing plate correspondingly,
The cleaning plate is provided with air injection means for injecting air toward the male mold accommodated in the mold receiving groove and foreign matter removing means for sucking the foreign substance by generating vacuum on the mold receiving groove Dual layer automatic mold printing system for contact lens molding.
delete delete delete The method according to claim 1,
The mold loading unit includes a mold supply unit for accommodating a plurality of male molds on an upper portion thereof and sequentially supplying male molds one by one, and a mold clamping unit for reciprocating between the mold supplying unit and the index turning unit, And a mold transferring unit for transferring the mold to the seating stage of the indexing unit.
The method of claim 5,
The mold transfer unit includes loading pick-up means for vacuum-sucking the male mold supplied from the mold supply unit, loading and elevating means for vertically movably moving the position of the loading pick-up means, And a loading and conveying means for linearly reciprocating back and forth from the position of the mold feeding unit toward the seating stage of the indexing portion to convey the male mold.
delete The method according to claim 1,
The mold printing unit includes a stamp supply unit that fixes a stamp plate having a print pattern formed thereon, the ink supply unit being capable of supplying ink to the stamp plate; A printing unit for flowing the stamp module so as to print a pattern on a surface of a male mold placed on a stage; and a setting control unit for numerically inputting and controlling a flow distance of the printing unit, Automatic mold printing system.
The method of claim 8,
The stamp supply unit includes a stamp jig for supporting the stamp plate and a stamp jig which is coupled to one end of the stamp jig and drives the stamp jig to move the stamp jig from the ink supply position to a position corresponding to the stamp module A dual layer automatic mold printing system for contact lens molding comprising a driving cylinder.
The method of claim 8,
The printing unit includes a lifting and lowering conveying module having the stamp module fixedly installed at the lower part thereof and being vertically movable up and down, and a printing elevating and lowering unit constituting a first servomotor installed to apply power for vertical movement of the elevating and conveying module. And a printing conveying unit configured to support the printing elevating unit and configured to linearly move back and forth, and a second servomotor configured to apply a power for rectilinear movement of the traveling module,
Wherein the first servomotor of the printing elevating means and the second servomotor of the printing and conveying means are driven by receiving a numerical control signal of a coordinate value input to the setting control unit.
The method of claim 8,
Wherein the mold printing unit includes an ink cleaner provided on a flow path of the print unit and capable of removing ink in a contaminated state on a print pad of the stamp module,
Wherein the mold printing unit controls the print unit according to an input signal through the setting control unit, and controls the ink to flow through the ink cleaner when the print unit flows.
The method according to claim 1,
The ink drying unit comprises a support frame and a dual layer automatic for contact lens molding comprising a support frame and heating means for spraying the air supplied from the outside onto the print layer of the male mold and heating the outside air with hot air, Mold printing system.
The method according to claim 1,
The unloading and elevating unit includes unloading pick-up means for vacuum-sucking the male mold on the seating stage, unloading elevating means for elevating and lowering the position of the unloading pick-up means so as to be vertically movable, And unloading and conveying means for linearly reciprocating in the back and forth direction toward the male mold take-out direction at the position of the seating stage for unmolding the male mold.

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