KR20170024421A

KR20170024421A - Gate cutting apparatus for injection molding lens

Info

Publication number: KR20170024421A
Application number: KR1020150119676A
Authority: KR
Inventors: 신선호; 박재완; 김혁명; 김경태; 유웅현
Original assignee: (주) 엔에스코리아; (주)엠피티
Priority date: 2015-08-25
Filing date: 2015-08-25
Publication date: 2017-03-07

Abstract

The lens gate cutting apparatus according to the present invention includes two or more workbenches, an injection molding arrangement unit for arranging the lens moldings on two or more workbenches according to a predetermined cutting rule, and a plurality of lenses assigned to the two or more workbenches A lens storage portion including two or more cutting portions for separating one or more different lenses from each other, a lens storage portion formed by two or more tray portions corresponding one to one to two or more cutting portions, At least two sorters for picking up a lens from two or more lens cut-out parts and accommodating the lens in a tray area corresponding to the separated lens, a lens feed part and an injection part arrangement for feeding at least two sorters between two or more cutting parts and lens- And a control section for controlling the cut section and the lens feed section.

Description

TECHNICAL FIELD [0001] The present invention relates to a lens gate cutting apparatus,

The present invention relates to a lens gate cutting apparatus, and more particularly, to an apparatus for separating a large amount of lenses from a lens projection mass produced by an injection molding machine.

In general, plastic lenses are inexpensive and cost-effective compared to glass lenses and are widely used in cellular phone cameras, disk pickup devices, and the like. Generally, when a small product is to be injected, a plurality of products are molded into a single molded product in order to reduce the consumption of materials such as tangs and gates and increase the working efficiency. Generally, a plurality of individual lenses are formed by injection molding a lens insert connected to a runner, and a plurality of lenses are cut and separated from the injection molding.

When injection molding a single lens extrusion, it is possible to form the plurality of lenses so as to include different types of lenses, instead of manufacturing all the same one type. For example, lenses having different refractive indices may be included in one lens mold, or both lenses may be formed to include both convex lenses and concave lenses. However, in this case, it is necessary to note that different kinds of lenses are mixed in the cutting process. Particularly, since it is difficult to distinguish the difference between the lenses by the naked eye, it is necessary to classify the lenses so that different lenses are not mixed with each other. In addition, the production efficiency is lowered because of the time required to separate and load different lenses. Korean Patent No. 10-1178928 discloses a technique for increasing the mass production efficiency of an injection lens, but does not solve the above-described problems.

Korean Patent No. 10-1178928

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lens gate cutting apparatus capable of improving the production efficiency of a lens injection product including lenses of different types.

A lens gate cutting apparatus according to the present invention is a lens gate cutting apparatus for cutting a gate of a lens injection molded integrally with a plurality of indexed lenses to separate the lens. The lens gate cutting apparatus according to the present invention includes two or more workbenches, an injection molding arrangement for arranging the lens moldings on two or more workbenches according to a predetermined cutting rule, and a plurality of lenses indexed correspondingly to two or more workbenches A lens accommodating portion formed of at least two tray regions corresponding to two or more cutting portions in one-to-one correspondence, a lens accommodating portion formed integrally with two or more of the cutting portions, At least two sorters for picking up a lens from two or more lens cut-out parts and accommodating the lens in a tray area corresponding to the separated lens, a lens feed part and an injection part arrangement for feeding at least two sorters between two or more cutting parts and lens- And a control section for controlling the cut section and the lens feed section.

The lens conveying portion includes a pair of linear guides arranged in the X-axis direction on both sides of the column and lens accommodating portion for moving the two or more sorters in the Y-axis direction, and moving the column in the X-axis direction.

An injection molding apparatus according to any one of claims 1 to 3, wherein the injection molding arrangement part supports two or more of the cutting parts in a one-to-one correspondence to support and fix the lens molding, and two or more workbases for rotating the lens molding, And an ejection material conveying portion including at least two pickers that sequentially move to one workbench.

The control unit may assign an index of a lens to be cut to two or more cutting units among a plurality of indexed lenses based on a cutting rule and control the injection material conveying unit to cut only the lens to which two or more cutting units are allocated, . The control unit is configured to place the lens case in the initial state from the outer workbench among the two or more workbenches through the injection material transfer unit, to separate the lens assigned through the cutting unit corresponding to the outer workbench, Move the separated lens insert to the next work bench. Further, the control unit rotates the workbench to cut a lens corresponding to an index to which at least two cutting units are assigned.

The lens cut-off portion has a seating groove formed on an upper surface thereof so as to allow the lens to be seated. The lens cut-off portion is slidably formed on the base. The lens cut-off portion is positioned on the lower side of the lens during gate cutting, And further includes a lens holder. And, the at least two tray regions include at least one lens tray corresponding to each of the lenses assigned to the corresponding cutting portion. In addition, the sorter vacuum-adsorbs the lens separated from the lens cutting portion.

The lens gate cutting apparatus according to the present invention is characterized in that in the process of cutting a gate of a lens insert having a plurality of different lenses, different lenses are allocated to two or more cutting lines, and a lens is separated by cooperation between two or more cutting lines It is possible to shorten the time required to load other kinds of lenses and to increase the production efficiency of the lens extrudate.

1 is a perspective view showing an embodiment of a lens gate cutting apparatus according to the present invention.
2 is a side view of the lens gate cutting device shown in Fig.
3A is a plan view of the lens gate cutting apparatus shown in FIG.
Fig. 3B is a plan view of the lens housing portion of the tube lens cutting device shown in Fig. 1. Fig.
FIG. 4 is a schematic view of an injection molding arrangement of the lens gate cutting apparatus of FIG. 1. FIG.
FIG. 5 is a schematic view of a lens cut-out portion of the lens gate cutting apparatus of FIG. 1;
Fig. 6 is a view showing an example of a lens projection of the lens gate cutting apparatus of Fig. 1. Fig.
7 is a view for explaining the operation of a lens gate cutting apparatus according to an embodiment of the present invention.
FIG. 8A is a side view showing an injection part arrangement part and a lens cut part of a lens gate cutting device according to an embodiment of the present invention. FIG.
8B is a view illustrating a work table of a lens gate cutting apparatus according to an embodiment of the present invention.
8C is a view showing a lens holder of a lens gate cutting apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms and words used in the present specification are selected in consideration of the functions in the embodiments, and the meaning of the terms may vary depending on the intention or custom of the invention. Therefore, the terms used in the following embodiments are defined according to their definitions when they are specifically defined in this specification, and unless otherwise specified, they should be construed in a sense generally recognized by those skilled in the art.

1 is a side view of the lens gate cutting apparatus shown in Fig. 1, Fig. 3a is a plan view of the lens gate cutting apparatus shown in Fig. 1, Fig. And Fig. 3B is a plan view of the lens storage portion of the retardation cutting apparatus shown in Fig. 1 is a schematic plan view of a lens cutting unit of the lens gate cutting apparatus of FIG. 1, and FIG. 6 is a cross-sectional view of the lens gate cutting apparatus of FIG. Fig. 8 is a view showing an example of a lens projection of a cutting device.

1 to 6, a lens gate cutting apparatus 1000 according to the present invention includes a base 10, an injection material arranging unit 100, a lens cutting unit 200, a lens accommodating unit 300, 400, a lens feeding part 500, and a control part (not shown). It is assumed that one embodiment of the present invention includes four operation lines for convenience of explanation.

The base 10 is a flat plate that supports the other components of the lens gate cutting apparatus 1000 from below as shown. Since the base 10 should be rigid and flat, it is preferably made of a metal material.

The injection molding arrangement unit 100 arranges the lens molding M on the two or more workbenches 120 using the injection molding transfer unit 110 according to a predetermined cutting rule and rotates the workbench 120 to rotate the lens molding M, . A plurality of lenses are injection-molded integrally at the ends of the gate of the lens mold M according to the present invention, and a plurality of lenses connected to the lens mold M are sequentially indexed. The injection material placing unit 100 moves the lens mold M between two or more workbenches 120 based on a preset cutting rule and rotates the workbench 120 so that the lens cutter 200 is moved in accordance with the cutting rule Cut only the lens. The cutting rules are described later.

The lens cutout portion 200 includes two or more cutting portions 210, and each cutting portion 210 is located adjacent to the corresponding worktable 120. [ The two or more cutting portions 210 cut the gate of the lens ejection M disposed on the corresponding work table 120 to separate the assigned lens.

The lens cutter 200 may further include a lens holder 220. The lens holder 220 has a groove for allowing the lens to be seated on the upper surface thereof and is slidably formed on the base 910. When the lens is separated from the lens, the lens holder 220 is separated from the lower side of the lens when the lens is separated by cutting the gate, and when the lens is separated, the lens holder 220 is held by the vacuum pressure . Therefore, a vacuum hole for applying vacuum pressure can be formed in the groove. The lens holder 220 moves the lens to the unloading position so that the lens can be unloaded by the sorter 400 and loaded on the lens housing part 300.

The lens housing part 300 is composed of two or more tray areas 310 to 340. One tray area corresponds to one adjacent cutting portion 210. [ One tray area 310 includes one or more lens trays 311, and each lens tray 311 corresponds one-to-one with one indexed lens of the lens injection M according to a cutting rule. That is, one lens tray stores only the lenses having the same index according to the set cutting rule.

At least two sorters 400 correspond to one adjacent cutting portion 210, respectively. The sorter 400 moves on the lens housing part 300 by the lens feeding part 500 and picks up the lens separated from the corresponding cutting part 210 of the lens cutting part 200 to form a corresponding tray area 310 To the lens tray 311 of the lens barrel 311. When the lens is cut at the corresponding cutting portion 210, the sorter 400 vacuum-sucks the cut lens and stores the lens in the lens tray 311 having the same index as the index of the lens. The number of the sorter 400 is equal to the number of the corresponding cutting portions 210.

The lens feeding part 500 includes a pair of linear guides 510 located on the upper and lower sides of the lens housing part 300 and a column 520 positioned on the linear guide 510. The linear guide 510 moves the column 520 in the X axis direction and the column 520 moves the two or more sorter 400 in the Y axis direction to move the sorter 400 to the X Axis and Y-axis directions.

The control unit (not shown) controls the operation of the injection molding arrangement unit 100, the lens cutting unit 200, the lens housing unit 300, the two or more sorters 400, and the lens feeding unit 500 based on the cutting rule.

Referring to FIG. 4, the injection material arrangement unit 100 includes an injection material transfer unit 110 and a work table 120. The workbench 120 may be installed to be slidable in the base 910. The workbench 120 slides on the base 910 through a linear motion guide and a pneumatic cylinder so as to be close to or away from the corresponding cutting portion 210. At least two seating grooves may be formed on the upper surface of the work table 120 according to the shape of the runner of the lens mold M. The lens extrudate M is fixed on the worktable 120 by the seating groove. As an example, the seating groove formed on the upper surface of the work table 120 may be formed in a V-shaped cross section. Since the mounting groove of the V-shaped cross section is formed on the upper surface of the work table 120, even if there is some error between the shape, the thickness and the shape and depth of the groove of the lens molding, the lens molding M does not flow in the mounting groove And is stably fixed.

The injection material transfer unit 110 includes at least two pickers 111 to 115 and one horizontal bar 130. Two or more pickers 111 to 115 are spaced apart from the horizontal bar 130 by a predetermined distance. The horizontal bar 130 is moved in the Y-axis direction by the linear motion guide to move at least two of the pickers 111 to 115.

The two or more pickers 111 to 115 pick up the lens mats M placed on the jig 920 located on the side of the worktable 121 and seat them on the first worktable 121 adjacent to the jig 920. Then, according to a predetermined cutting rule, the lens mats (M) cut with some lenses are moved to the next workbench and the new lens bobbins are placed on the first workbench (121). At least two pickers 111 to 115 place the lens on the work table 120 according to a predetermined cutting rule through the above process.

Referring to FIG. 5, the lens cutout 200 includes two or more cutting portions 210. The two or more cutting portions 210 correspond to one or more workbenches 120 and are located adjacent to the corresponding workbench 120. The two or more cutting portions 210 cut the gate of the lens ejection M disposed on the corresponding work table 120 to separate the assigned lens. The cutting unit 210 of the present invention can separate one lens by cutting one gate at a time in the process of cutting the gate of the lens ejection M arranged on the work table 120. [ In addition, the cutting unit 210 of the present invention can cut two gates at a time in the process of cutting the gate of the lens muzzle M to simultaneously separate the two lenses.

7 is a view for explaining the operation of a lens gate cutting apparatus according to an embodiment of the present invention.

Referring to FIGS. 1 to 7, for convenience of explanation, the present invention includes four operation lines composed of four operation portions 121 to 124 and four cutting portions 211 to 214, and the lens ejection M ) Is assumed to include 16 lenses whose numbers from 1 to 16 are indexed clockwise. However, the present invention is not limited to the four lines, and the number of working and cutting portions can be freely adjusted in two or more. It is assumed that the first cutting portion 211 to the fourth cutting portion 214 cut 1-4, 5-8, 9-12, and 13-16, respectively, out of the 16 lenses in the cutting rule do. The first to fourth cutting units 211 to 214 can cut two lenses at a time. For example, the first cutting portion 211 can cut the first and second lenses at a time.

7, reference numerals 710 to 740 denote first to fourth lens extrusions 710 to 740 for sequentially moving the first to fourth working portions 121 to 124, respectively. The first stage lens extrudate 710 represents an initial lens extrusion in which the lens is not separated.

First, the first stage lens extruder 710, on which the first picker 111 is placed on the jig 920, is placed on the adjacent first work unit 121. The lens insert 710 located on the jig 920 is seated such that the lens indexed by the first lens always faces the cutting portion 210. Accordingly, the first lens unit 710 placed in the first working unit 121 is also positioned at the first lens unit in the direction of the adjacent first cutting unit 211. The first working part 121 is slid in the direction of the first cutting part 211 so that the first step lens part 710 is slid in the direction of the first cutting part 211 ).

The first cutting portion 211 cuts the first and second lenses of the one-stage lens extruded product 710. When the first and second lenses are cut, the first lens holder 221 vacuum-sucks the cut lenses (No. 1 and No. 2) to be positioned in the grooves, and then moves to the unloading position L 1. When the first lens holder 221 moves to the unloading position L1, the first sorter 410 lifts the first and second lenses located in the first lens holder 221 through the two suction nozzles. The first sorter 410 is moved by the lens conveyance unit 500 to place the first lens in the corresponding first lens tray 311 and the second lens in the corresponding second lens tray 312 Rest.

The first lens holder 221 is rotated in a counterclockwise direction so as to face the first work table 121 so that the third lens and the fourth lens are directed to the first cutting portion 211, And moves adjacent to the first cutting portion 211. The lenses 3 and 4 are cut through the same process as the first and second lenses, and are placed on the third lens tray 313 and the fourth lens tray 314, respectively. When the first to fourth lenses allocated to the No. 1 cutting unit 211 are all separated according to the cutting rule, the second picker 112 cuts the 2-stage lens cutout 720 from which the 1st to 4th lenses are separated, 2 to the workbench 122. At the same time, the first picker 111 moves the new first stage lens insert 710 located in the jig 920 to the first work table 121.

When the second stage lens section 720 is positioned on the second work table 122, the second cutting section 212 is moved in the same manner as the first cutting section 211 and the fifth and sixth lenses and the seventh / Separate each lens. The second sorter 420 is mounted on the fifth lens tray 321 and the sixth lens tray 322 and the seventh lens 832 is mounted on the seventh lens tray 323 and the seventh lens The lens trays 324 of the first lens group. At the same time, the first work table 121 and the first cutting section 211 separate the first through fourth lenses from the new one-stage lens tray 710 and separate the first lens tray 311 and the fourth lens tray 314). The third picker 430 moves the third stage lens insert 730 from which the first through eighth lenses are separated to the third work table 123 and the second picker 420 moves the first work table 121, And the first picker 410 moves the first stage lens insert 710 on the jig 920 to the first work table 121. The first stage lens insert 720 is moved to the second work table 122, .

Next, the above-described process is repeated in the same manner. The lenses 9 to 12 of the three-stage lens extruded product 730 are separated by the third cutting portion 213, and the separated lenses 9 to 12 are separated by 9 The lens trays 331 to the lens trays 334, The fourth stage lens extrusion 730 of the third working unit 113 is moved to the fourth work stage 124 by the fourth picker 114 and the new first stage lens extrudate 710 and 3 And the stepped lens projections 730 are placed on the first to third workbenches 121 to 123, respectively.

Next, the above-described process is repeated for the four-stage lens extruded product 740 of the fourth workbench 124 to mount the lenses No. 13 to No. 16 on the lens trays 341 to 16 of the lens tray 341 do. The lens trays in which all the lenses are separated can be picked up by the fifth picker 115 at the fourth worktable 114 and discharged through the outlet 930 formed outside the fourth worktable 124.

The lens cutting unit 200, the lens holding unit 300, the two or more sorters 400 and the lens transfer unit 500 that perform the lens cutting and loading processes described above are controlled by the control unit to perform the operation .

As described above, according to the present invention, one work group, one picker, one cutting unit, one sorter, and one tray region form one group, and cutting and storing processes are performed only for the lenses assigned according to the cutting rule . Therefore, in the process of loading the lens having the same index assigned to the lens tray, the sorter 400 and the lens transfer unit 500 do not need to move in the entire area of the lens storage unit 300 but move only on the corresponding tray area, Is possible. Therefore, the present invention can reduce the time required for loading the cut lens.

FIG. 8A is a side view showing an injection-molded part and a lens cut-out part of a lens gate cutting device according to an embodiment of the present invention, FIG. 8B is a view showing a work table of a lens gate cutting device according to an embodiment of the present invention, 8c is a view showing a lens holder of a lens gate cutting device according to an embodiment of the present invention.

8A to 8C, a lens gate cutting apparatus according to an embodiment of the present invention may include a work table 20, a cutting unit 30, and a lens holder 70 of the type described below.

The base 810 may be formed in a rectangular flat plate shape. Since the base 810 should be solid and flat, it is preferably made of a metal material.

The workbench 820 is mounted on the base 810. The workbench 820 may allow the workbench 820 to slide on the base 810 through the linear motion guide and the pneumatic cylinder at the base. On the upper surface of the work table 820, a mounting groove 821a having a V-shaped cross section according to the runner shape of the lens extrudate is formed. And the lens ejection article is seated in the seating groove 821a. Since the mounting groove 821a having a V-shaped cross section is formed on the upper surface of the work table 820, even if there is some error between the shape, depth and depth of the groove and the shape of the runner of the lens projection, And is stably fixed.

The workbench 820 includes a mounting rod 821 having a V-shaped section mounting groove 821a formed on the upper surface thereof in accordance with the shape of a runner of the lens molding and a work block 822 formed such that the mounting rod 821 can be coupled to and detached from the mounting rod 821 Lt; / RTI > In this case, only the seating rod 821 can be replaced according to the shape of the lens extruded article. In the case where the work table 820 is composed of the seating rod 821 and the work block 822, even if the shape and size of the lens projection are changed, only the seating rod 821 can be replaced, so that the cutting operation can be performed smoothly.

The upper cutter portion 830 is provided so as to be able to move up and down with respect to the base 810 so as to cut and separate the lens from the lens cutout. The upper cutter portion 830 supports the upper cutter 831 for cutting and separating the lens by directly contacting the lens mold and the upper cutter 831. The upper cutter portion 831 supports the upper cutter 831 by an elevating unit 850, 832). As the material of the phase cutter 831, a hard metal or a high-speed alloy may be used.

The lower cutter portion 840 is installed below the upper cutter portion 830 to be movable up and down. The lower cutter portion 840 cuts and separates the lens together with the upper cutter portion 830. The lower cutter portion 840 may be composed of a lower cutter 841 and a lower block 842 like the upper cutter portion 830. The material of the lower cutter 841 is preferably the same as that of the upper cutter 831.

The elevating unit 850 elevates and lowers the upper cutter portion 830 and the lower cutter portion 840. The elevating unit 850 may be constituted by a motor 851 and a cam portion. The cam portion moves up and down the upper cutter portion 830 and the lower cutter portion 840 as the motor 851 rotates. The cam portion is formed to have a cylindrical shape and has a cylindrical cam 852 having a guide groove 852a formed on its outer circumferential surface and a guide groove 852a of the cylindrical cam 852, And the other is composed of two link members 853 and 854 connected to the lower cutter unit 840. When the cylindrical cam 852 is rotated by the motor 851, the link members 853 and 854 move up and down along the guide groove 852a to move the upper cutter portion 830 and the lower cutter portion 840, .

Meanwhile, the speed of the motor can be adjusted so as to adjust the lifting speed of the upper cutter 830 and the lower cutter 840. Since the cutting speed can be adjusted by adjusting the ascent and descent speeds of the upper cutter portion 830 and the lower cutter portion 840, it is possible to reduce foreign matter during gate cutting and smoothen the cutting surface. As a result, the defect occurrence rate is lowered and the productivity is improved.

The pusher 860 is provided so as to be able to move up and down with respect to the base so as to prevent the lens extrusion from flowing by pressing the lens extrusion during gate cutting. By pushing the pusher 860 to fix the lens extrusion, no flow occurs during the gate cutting and the correct position can be cut. A pneumatic cylinder (not shown) may be provided to allow the pusher 860 to be elevated relative to the base.

In addition, the lens gate cutting device may further include a lens holder 870. The lens holder 870 has a seating groove 870a for allowing the lens to be seated on the upper surface thereof, and is slidably formed on the base. Further, the lens holder 870 is positioned in a state where it is spaced apart from the lower side of the lens when cutting the gate, and when the lens is detached, it holds the separated lens by using the vacuum pressure. Therefore, a vacuum hole 870b for applying vacuum pressure can be formed in the seating groove 870a. The lens holder 870 can move the lens to the unloading position and allow the lens to be unloaded by a sorter or the like, and then loaded on a tray or the like.

In addition, the lens gate cutting device may further include a rotation unit (not shown) for rotating the work table 820. The rotating unit may be a servo motor, a step motor, and a rotating cylinder installed at the lower portion of the work table 820 and connected to the axis of the work table 820. When the lens gate cutting device further includes a rotation unit, the work table 820 is rotated by moving the work piece 820 without moving the cutter portion 830 and the lower cutter portion 840 or resetting the lens cutter, Other gates can be cut. Therefore, productivity is improved.

Further, the lens gate cutting apparatus may further include a heater (not shown) for heating the cutter portion 830 and the cutter portion 840. A heater for heating the cutter may be provided in the upper block 832 and / or the lower block 842. The heater for heating the cutter may be a heating wire that generates heat by electricity. By heating the upper and lower cutters 841 by the heater for heating the cutter, the load received by the upper and lower cutters 841 during the cutting operation is reduced, so that the cutting is facilitated and a clean cutting surface can be obtained.

The lens gate cutting device may further include a temperature sensor (not shown) for measuring the temperature of the cutter portion 830 and the lower cutter portion 840. By measuring the temperature of the upper cutter portion 830 and the lower cutter portion 840 with the temperature sensor and when the measured temperature is lower than a desired temperature, by raising the temperature of the cutter with the heater for heating the cutter, The cutting operation can be performed.

The operation of the lens gate cutting apparatus according to an embodiment of the present invention will now be described.

First, when a plurality of individual lenses are connected to the runner and the lens insert is seated in the V-shaped end face mounting groove 821a of the work table 820, the work table 820 is moved in a direction in which the upper cutter portion 830 and the lower cutter portion 840 are positioned To the cutting position. The lens holder 870 is also horizontally moved to the cutting position.

When the workbench 20 and the lens holder 870 are moved to the cutting position, the pusher 860 pushes and fixes the lens extrusion from above.

Then, the lifting unit 850 lowers the upper cutter 830, and the lower cutter 840 lifts the lens so that the lens is cut and separated. At this time, the lens holder 870 rises vertically and is positioned slightly apart from the lower side of the lens, and the separated lens is held by vacuum pressure. The lens holder 870 then moves the lens to the unloading position so that the lens holder can be loaded into the tray by a sorter or the like. On the other hand, the elevating unit can adjust the elevating speed of the upper cutter portion 830 and the lower cutter portion 840 to achieve a precise cutting operation.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is possible.

1000: Lens gate cutting device
100: injection molding arrangement part 110:
120: work table 200: lens cut portion
210: cutting portion 220: lens holder
300: Lens compartment 400: Two or more sorters
500: lens feed part 510: linear guide
520: Column 910: Base
920: jig 930: outlet

Claims

1. A lens gate cutting apparatus for cutting a gate of a lens extrusion injection molded integrally with a plurality of indexed lenses to separate the lens,
An injection molding machine comprising: an injection molding arrangement part including two or more workbenches and arranging the lens molding on the two or more workbenches according to a predetermined cutting rule;
A lens cutting part including at least two cutting parts for separating at least one lens assigned to each of the plurality of indexed lenses corresponding to the two or more work platforms on a one-to-one basis;
A lens housing part composed of at least two tray areas corresponding one to one to the at least two cutting parts;
Two or more Sorters corresponding to the two or more cutting portions on a one-to-one basis, the separated lenses being picked up from the two or more lens cutting portions and housed in a tray region corresponding to the separated lenses;
A lens transfer unit for transferring the two or more sorters between the at least two cutting units and the lens containing unit; And
A control unit for controlling the injection material arranging unit, the lens cutting unit, the sorter, and the lens transferring unit;
Wherein the lens gate cutting device comprises:

The method according to claim 1,
The lens-
A column for moving the at least two sorters in the Y-axis direction; And
A pair of linear guides arranged on both sides of the lens housing part in the X-axis direction and moving the column in the X-axis direction;
Wherein the lens gate cutting device comprises:

The method according to claim 1,
The injection-
At least two workbenches for supporting and fixing the lens extrudate in correspondence with the two or more cutting portions on a one-to-one basis, and rotating the lens extrudate;
An injection material conveying unit including at least two pickers for loading the lens moldings on the at least two workbenches and sequentially moving the lens molds stacked on the at least two workbenches to a neighboring workbench;
Wherein the lens gate cutting device comprises:

The method of claim 3,
Wherein,
An index of a lens to be cut is assigned to the two or more cutting units among the plurality of indexed lenses based on the cutting rule, and the injection object conveying unit is controlled to cut only the lenses assigned to the two or more cutting units, And moving the lens gate cutting device sequentially in one workbench.

The method of claim 3,
Wherein,
Wherein the at least two cutting portions rotate the workbench to cut a lens corresponding to an index assigned thereto.

The method of claim 3,
The lens cut-
A lens holder slidably mounted on a base and having a seating groove formed on an upper surface thereof so as to be able to receive a lens, Further comprising a plurality of lens gate cutting devices.

The method of claim 1, wherein
Wherein the at least two tray regions include at least one lens tray corresponding to each of the lenses assigned to the corresponding cutting portion.

The method of claim 1, wherein
Wherein the sorter vacuum-adsorbs the lens separated from the lens cutting unit.

The method of claim 3, wherein
The control unit
Wherein the lens barrel is mounted on the outer workbench and the lens barrel is mounted on the outer workbench and the lens barrel is mounted on the workbench. And the moved lens workpiece is moved to a next work bench.

The method of claim 1, wherein
Wherein the at least two cutting portions simultaneously cut two gates of the lens extrusion to separate the two lenses at a time.