CN108568925B

CN108568925B - Double-station casting machine

Info

Publication number: CN108568925B
Application number: CN201810363012.9A
Authority: CN
Inventors: 周民杰
Original assignee: Danyang Leideng Intelligent Technology Co Ltd
Current assignee: Danyang Leideng Intelligent Technology Co Ltd
Priority date: 2018-04-21
Filing date: 2018-04-21
Publication date: 2019-12-10
Anticipated expiration: 2038-04-21
Also published as: CN108568925A

Abstract

The invention belongs to the field of lens production equipment, and particularly relates to a double-station casting machine for lens mold production. Double-station casting machine, it includes two lens mould casting systems that set up side by side, feeding subassembly and ejection of compact subassembly of two lens mould casting systems sharing, still include lens mould unloading mechanism on the lens mould, lens mould unloading mechanism include the crane span structure, the below of crane span structure is equipped with feeding mechanism and discharge mechanism, feeding mechanism is used for putting into the feeding subassembly with the lens module, discharge mechanism is used for taking off the lens mould of pouring completion from the discharge assembly. The invention designs a double-station pouring mechanism, two pouring systems share a feeding assembly and a discharging assembly, and the automatic feeding and discharging operation is realized through a lens mold feeding and discharging mechanism, so that the structure of equipment is simplified.

Description

Double-station casting machine

Technical Field

the invention belongs to the field of lens production equipment, and particularly relates to a double-station casting machine for lens mold production.

background

The lens is mainly divided into three modules of a substrate, a hardening module and a film coating module, wherein the production steps of a plurality of substrates are the most complicated, the filling is to inject raw materials which are prepared and reach certain viscosity through prepolymerization into an assembled mould by a manual method, and the injection opening needs to be sealed, so that the quality is ensured to meet the requirement, and the existing manual filling has high technical requirement on workers, low efficiency and low qualification rate.

The lens mould includes mould A and mould B to and the winding is sealed the sticky tape on mould A and mould B are global, sealed sticky tape participates in around global round and extension has laminating portion, and the length of laminating portion is about 70 mm.

the Chinese patent application: 201510731655.0, title of the invention: a lens mold filling machine, and chinese patent 201720898791.3, the invention name: a full-automatic light-operated resin lens casting machine,

the filling machine and the casting machine in the documents are single stations, and each device needs a corresponding feeding mechanism and a corresponding discharging mechanism, so that the problem that the device is too long or too wide in the length direction and the width direction is caused, and the arrangement of a subsequent production line is also influenced;

Further, in both of the above documents, the lens monomer is poured into the cavity of the lens mold by a needle to pierce the adhesive tape on the surface of the lens mold, which has the following disadvantages:

1. The filling fluid is limited by the drift diameter of the needle head, and the outer diameter of the needle head is limited by the clearance of the mould, so that the filling efficiency is not high;

2. two ports, namely a filling port and an exhaust port, need to be pricked when the needle is filled, and the filling speed is simultaneously restricted by the two ports;

3. The pouring needle head extends into the inner wall of the cavity of the lens mold, the pouring needle head needs to be slowly pulled out in the poured mold, and continuous pouring is needed in the pulling-out process, so that more actions of equipment are caused, errors are easy to exist, the pouring needle head is an oblique notch, a few drops of lens monomers need to be continuously poured after the needle head leaves from the gap of the mold, and part of the few drops of lens monomers can remain on the outer side of the adhesive tape;

Further, the second document discloses a device for tearing and sticking adhesive tape, which comprises a fourth support, a slide rail is arranged on the fourth support, a slide plate is arranged on the slide rail, a fourth driving mechanism for driving the slide plate to slide is arranged on the fourth support, a clamp is arranged on the slide plate, the clamp comprises a fixed block and a sliding block, the contact surface of the fixed block and the sliding block is arranged into an inclined plane, the sliding block is connected with a piston rod of a second cylinder, a fifth driving mechanism for driving the clamp to rotate is also arranged on the slide plate, a fourth sensing mechanism is arranged on the surface of the fixed block, an upper limiting screw and a lower limiting screw are arranged on the slide plate, the upper limiting screw and the lower limiting screw clamp the end of the adhesive tape through the matching of the fixed block and the sliding block, then the fifth driving clamp to rotate through the fifth driving mechanism, the clamp drives the adhesive tape to be peeled off from the surface, the stroke of the rotary cylinder is limited, so the length of the adhesive tape torn by the rotary cylinder is limited, further, an upper limit screw and a lower limit screw are arranged on a sliding plate in the document, the stroke of the driving mechanism five is limited, namely, the length of the torn adhesive tape is also controlled, due to the limitation of the stroke of the driving mechanism five, an opening which is not covered by the adhesive tape cannot be formed on a mold, only the surface of a lens mold in the joint part can be separated, namely, an opening which enables the lens monomer to be directly injected into the mold cannot be formed, the lens monomer still needs to be injected into the mold by puncturing the adhesive tape coated on the surface of the lens mold through a needle or a sharp tube, and the problem of the needle filling mode also exists necessarily.

disclosure of Invention

Aiming at the defects in the prior art, the invention designs a double-station pouring mechanism, two pouring systems share a feeding component and a discharging component, and realizes the automatic operation of feeding and blanking through the lens mould feeding and blanking mechanism, simplifies the structure of the equipment, controls the manufacturing cost, and the automation degree of the device is improved, the production efficiency is also correspondingly improved, furthermore, the lens mould casting system of the invention is an adhesive tape for tearing the coating of the lens mould, an opening which is not covered by the adhesive tape is formed on the lens mould, and the pouring system of the lens mould is used for sealing after pouring is finished, so that the problems of low efficiency and poor precision of manual pouring in the prior art are solved, and further, the problem that monomers are remained on the surface of the adhesive tape through needle head pouring in the prior art is also solved.

the technical scheme of the invention is as follows:

duplex position casting machine, it includes two lens mould gating systems that set up side by side, feeding subassembly and ejection of compact subassembly of two lens mould gating system sharings, its characterized in that: still include lens mould unloading mechanism on the lens mould, lens mould unloading mechanism is used for sending into the feeding subassembly with empty lens mould and will annotate the lens mould that fills and take off from ejection of compact subassembly, lens mould unloading mechanism on include the crane span structure, the below of crane span structure is equipped with feed mechanism and discharge mechanism, feed mechanism is used for putting into the feeding subassembly with the lens module, discharge mechanism is used for taking off the lens mould that the pouring was accomplished from ejection of compact subassembly.

The two ends of the bridge frame are respectively provided with a feeding table board and a discharging table board, the feeding table board and the discharging table board are respectively provided with a moving assembly used for driving a material tray bearing a lens mold to move, the moving assembly comprises a sliding guide rail arranged on the rack, a sliding bearing plate is arranged on the sliding guide rail, and the rack is provided with a translation motor used for driving the bearing plate to move on the sliding guide rail.

The lens mould pouring system comprises a rack, wherein a retaining mechanism is arranged on the rack and used for fixing the lens mould and driving the lens mould to rotate; the tearing and sealing mechanism is arranged on the rack and positioned on the side edge of the retaining mechanism, and is used for grabbing the end part of the adhesive tape on the surface of the lens mold and then separating the adhesive tape from the lens mold to form an opening which is not covered by the adhesive tape; after the pouring is finished, the adhesive tape is matched with the retaining mechanism to enable the torn adhesive tape to be attached back again, and the sealing is finished;

the lens mold further comprises a pouring assembly connected to the frame and located above the retaining mechanism, wherein the pouring assembly is used for injecting the lens monomer into an inner cavity of the lens mold.

Further, tear and seal mechanism include with the mounting panel of retaining mechanism sharing, the mounting panel is fixed in the frame, is equipped with the guide rail subassembly on the mounting panel, is equipped with the sliding part on the guide rail subassembly, still be equipped with the drive sliding part on the mounting panel and tear a cylinder of motion on the guide rail, the sliding part is equipped with installation panel, is equipped with on the installation panel to be used for pressing from both sides the clamp that gets the subassembly of getting the sticky tape tip.

further, the clamping assembly comprises a rotary cylinder fixed on the installation plate, the output end of the rotary cylinder is connected with a movable clamp, and the fixed clamp is fixedly connected to the installation plate.

Furthermore, the clamping assembly comprises a fixed clamping block fixedly connected to the installation plate, a clamping cylinder is arranged on the fixed clamping block, a movable clamping block capable of rotating is arranged on the fixed clamping block, and the movable end of the clamping cylinder is hinged to the movable clamping block.

Further, the frame on still be equipped with tear the moulding tape mechanism that seals the mechanism cooperation and use, moulding tape mechanism include with the shared mounting panel of hold mechanism, be equipped with the cylinder fixed plate on the mounting panel, the guide arm cylinder is installed on the cylinder fixed plate, the flexible end of guide arm cylinder is connected with the connection foot, is equipped with the roll axis to lens mould surface laminating on the connection foot.

Furthermore, a first vision system for measuring the clearance between the lens molds fixed on the holding mechanism is arranged on the machine frame, the first vision system comprises a first industrial camera arranged on the machine frame on the side edge of the holding mechanism, and a first auxiliary light source is arranged on the machine frame opposite to the first industrial camera.

Furthermore, a second vision system for detecting the liquid level of the monomer in the lens mold is arranged on the machine frame, the second vision system comprises a second industrial camera which is arranged on the machine frame right opposite to the surface of the lens mold, and a second auxiliary light source is arranged on the machine frame opposite to the second industrial camera.

further, the holding mechanism comprises a mounting plate connected with the frame, a through hole is formed in the mounting plate, a bearing is arranged in the through hole, a hollow shaft is arranged in the bearing, a vacuum chuck is arranged at one end of the hollow shaft, an air inlet joint is arranged at the other end of the hollow shaft, a first synchronizing wheel is arranged on the surface of the hollow shaft, a driving motor is further arranged on the mounting plate, a second synchronizing wheel is arranged at the output end of the driving motor, and the first synchronizing wheel and the second synchronizing wheel are connected through a synchronizing belt.

Further, the pouring assembly comprises a displacement assembly installed on the frame, a flow control assembly is arranged at the movable end of the displacement assembly, a pouring pipe poured into the lens mold is further arranged on the displacement assembly, the flow control assembly comprises a fixing plate fixedly connected with the displacement assembly, a valve body assembly is arranged on the lower surface of the fixing plate, a control assembly is arranged on the upper surface of the fixing plate, the control assembly is matched with the valve body assembly, and the valve body assembly is connected with the pouring pipe.

Further, the frame on still be equipped with the feed mechanism of lens module centre gripping and delivering to on the retaining mechanism from the feeding subassembly, feed mechanism includes the fixed block, is equipped with the inclined plane on the fixed block, installs rotatory tilt cylinder on the inclined plane, the output of rotatory tilt cylinder is equipped with triangle connecting portion, is equipped with the lift cylinder on the triangle connecting portion, the output of lift cylinder is equipped with the gas claw cylinder, is equipped with the hand claw tight to the lens mould clamp on the gas claw cylinder.

In conclusion, the invention has the following beneficial effects:

The invention designs a double-station pouring mechanism, two pouring systems share one feeding assembly and one discharging assembly, and the automatic feeding and discharging operation is realized through the lens mold feeding and discharging mechanism, so that the structure of equipment is simplified, the manufacturing cost is controlled, the automation degree of the equipment is improved, and the production efficiency is correspondingly improved.

the invention tears the adhesive tape on the lens mould covered by the tearing mechanism, the tearing action is composed of two parts, the first part is the backward movement of the clamping component of the tearing mechanism, the second part is the rotation of the retaining mechanism, the tearing of the adhesive tape with larger length is completed by the cooperation of the two parts, an opening without adhesive tape covering is formed on the surface of the lens mould, after the adhesive tape is torn, the pouring component moves to ensure that the glue inlet of the pouring component corresponds to the opening, then pouring is carried out, the opening obtained by tearing the adhesive tape ensures that the lens mould has better air discharge performance, the air in the lens mould can be rapidly discharged, the problem that the air bubbles still exist in the lens mould after pouring is avoided, in addition, the air discharge performance of the lens mould is good, the air in the mould can be rapidly discharged in the pouring process, the pouring speed is favorably improved, and the production efficiency is improved, furthermore, the adhesive tape pressing mechanism provided by the invention is pressed on the surface of the lens mold, on one hand, when the tearing and sealing mechanism performs tearing action, the tearing length can be limited, the size of the opening can be accurately controlled, and the problem of overflow of a poured monomer caused by an overlarge opening is avoided.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a schematic view of a moving assembly

FIG. 4 is a schematic structural view of a two-station lens mold gating system;

FIG. 5 is a schematic view of another angle of a single lens mold gating system;

FIG. 6 is a schematic view of a tear seal configuration;

FIG. 7 is a schematic view of a first embodiment of a gripper assembly of the tear seal configuration;

FIG. 8 is a schematic view of a second embodiment of a gripper assembly of the tear seal arrangement;

FIG. 9 is a schematic structural view of a tape press structure;

FIG. 10 is a schematic view of the structure of the retaining mechanism;

FIG. 11 is a schematic structural view of a flow control assembly;

FIG. 12 is a schematic structural view of a control assembly;

FIG. 13 is a schematic structural view of a valve body assembly;

FIG. 14 is a schematic structural view of a feeding mechanism;

FIG. 15 is a schematic structural view of the feeding mechanism rotated by 90 °;

FIG. 16 is a schematic view of the configuration of the lens mold after the tape has been torn;

Detailed Description

The invention is further described below with reference to the accompanying drawings.

FIG. 16 is a schematic view showing the lens mold of the present invention after it has been torn; the lens mold is composed of a mold a50 and a mold B51, and an adhesive tape 53 coated on the peripheral surfaces of the molds a and B, and in the drawing 54 is an opening formed by tearing the adhesive tape and not covered by the adhesive tape.

as shown in fig. 1 and 2, the double-station casting machine includes two lens mold casting systems 90 arranged side by side, the two lens mold casting systems 90 share a feeding component 13 and a discharging component 131, the double-station casting machine further includes a lens mold feeding and discharging mechanism 92, the lens mold feeding and discharging mechanism is used for feeding an empty lens mold into the feeding component and taking a filled lens mold from the discharging component, the lens mold feeding and discharging mechanism 92 includes a bridge 920, a feeding mechanism 9201 and a discharging mechanism 9202 are arranged below the bridge 920, the feeding mechanism is used for placing a lens module into the feeding component, the discharging mechanism is used for taking a poured lens mold from the discharging component, the feeding mechanism and the discharging mechanism both include reciprocating mechanisms, the reciprocating mechanisms are used for switching positions, and mechanical grippers for sucking the lens mold through negative pressure are arranged on the reciprocating mechanisms, the feeding assembly and the discharging assembly are belt conveying equipment and are used for bearing and conveying empty lens molds and poured lens molds, the two pouring systems share the feeding assembly and the discharging assembly, the number of components of the equipment is reduced, the manufacturing cost of the equipment is reduced, further control programs are simplified, and the operation precision of the equipment is improved.

As shown in fig. 2 and 3, the both ends of crane span structure 920 be formed with material loading mesa 9203 and unloading mesa 9204 respectively, all be equipped with the removal subassembly 9205 that is used for the drive to bear the weight of the charging tray removal of lens mould on material loading mesa 9203 and unloading mesa 9204, removal subassembly 9205 including setting up sliding guide 92050 in the frame, be equipped with gliding carrier plate 92052 on sliding guide 92050, be equipped with the translation motor 92053 that the drive bears the weight of dull and stereotyped motion on sliding guide in the frame, remove the subassembly and can drive the charging tray and remove, with the cooperation of unloading mechanism on the lens mould for the unloading mechanism can be quick fixes a position and snatchs the lens mould on the lens mould.

as shown in fig. 4 and 5, the lens mold gating system includes a frame 1, wherein a holding mechanism 2 is disposed on the frame 1, and fixes and drives the lens mold to rotate;

the tearing and sealing mechanism 3 is arranged on the rack and positioned on the side edge of the retaining mechanism, and is used for grabbing the end part of the adhesive tape on the surface of the lens mold 5 and then separating the adhesive tape from the lens mold to form an opening which is not covered by the adhesive tape; after the pouring is finished, the adhesive tape is matched with the retaining mechanism to enable the torn adhesive tape to be attached back again, and the sealing is finished;

And the casting assembly 4 is connected to the frame and positioned above the retaining mechanism, and is used for injecting the lens monomer into the inner cavity of the lens mold 5.

the pouring mode of the pouring system of the lens mold is improved, an opening which is not covered by an adhesive tape is formed on the surface of the lens mold through a tearing and sealing mechanism, the width of the opening is about 10mm, and as shown in specific reference to fig. 13, a pouring assembly pours a lens monomer into the lens mold from the opening; according to the invention, the pouring pipe is positioned above the opening and does not need to be inserted into the gap of the lens mold, the pouring assembly does not need to be displaced and adjusted in the pouring process, the action of equipment is reduced, the opening is formed in the lens mold, so that the accommodating cavity in the lens mold is an unsealed cavity, the pouring speed in the pouring process of the lens monomer is improved, the accommodating cavity in the lens mold in the prior art is a relatively sealed cavity, the adhesive tape is punctured through the pouring needle head, an exhaust needle head is inevitably required to be inserted into the lens mold, and the pouring speed is influenced by the through diameter of the pouring needle head and the exhaust efficiency of the exhaust needle head.

as shown in fig. 6, the tearing and sealing mechanism includes a mounting plate 10 shared with the holding mechanism, the mounting plate 10 is fixed on the frame 1, a rail assembly 30 is arranged on the mounting plate 10, a sliding portion 31 is arranged on the rail assembly 30, a tearing and sealing cylinder 32 for driving the sliding portion to move on the rail is further arranged on the mounting plate 10, the sliding portion 30 is provided with a mounting plate 33, a clamping assembly 34 for clamping the end portion of the adhesive tape is arranged on the mounting plate 33, the arranged rail assembly is a linear rail fixedly arranged on the mounting plate, the sliding portion moves linearly on the rail assembly, the tearing and sealing cylinder can drive the clamping assembly to move on the rail assembly, a longer moving distance can be obtained, so that a longer tearing distance can be obtained, an opening can be formed after the adhesive tape is torn, further, the longer tearing distance can be a tensioned state of the torn adhesive tape, avoid tearing the sticky tape after having the problem of buckling, folding, the sticky tape is unfavorable for the operation of sealing in later stage after the bending is folding, moreover, tears to seal the mechanism and keep the mechanism cooperation for the sticky tape opening on the lens mould is located the upper end of lens mould, guarantees the volume of pouring and the fashioned stability of lens mould.

The clamping assembly shown in fig. 7 comprises a rotary cylinder 340 fixed on an installation plate 33, a movable clamp 341 is connected to the output end of the rotary cylinder 340, and a fixing clamp 342 fixedly connected to the installation plate 340, a tape detection sensor 343 for detecting the warping portion of the tape is further arranged on the fixing clamp, when the tape detection sensor detects that the warping portion of the tape is located between the fixing clamp and the movable clamp, the rotary cylinder works to drive the movable clamp to rotate, so that the movable clamp and the fixing clamp are clamped, and the clamping of the warping portion of the tape is completed.

As shown in fig. 8, the clamping assembly includes a fixed clamping block 343 fixedly connected to the mounting plate 33, a clamping cylinder 344 is disposed on the fixed clamping block 343, a movable clamping block 345 capable of rotating is disposed on the fixed clamping block 343, a movable end of the clamping cylinder 344 is hinged to the movable clamping block 345, and the clamping cylinder operates to drive the movable clamping block to rotate around a joint between the movable clamping block and the fixed clamping block, so as to clamp the warping portion of the adhesive tape.

As shown in fig. 4 and 9, the frame 1 is further provided with an adhesive tape pressing mechanism 35 used in cooperation with the sealing tearing mechanism, the adhesive tape pressing mechanism 35 includes a mounting plate 10 shared with the holding mechanism, the mounting plate 10 is provided with a cylinder fixing plate 350, a guide rod cylinder 351 is mounted on the cylinder fixing plate 350, a telescopic end of the guide rod cylinder 351 is connected with a connecting pin 352, the connecting pin 352 is provided with a rolling shaft 353 attached to the surface of the lens mold, during the tearing process, the rolling shaft of the adhesive tape pressing mechanism presses and covers the lens mold, the tail end of the torn adhesive tape can be limited, the problem of overlarge opening formed by tearing is avoided, the accuracy and stability of tearing the adhesive tape are ensured, meanwhile, during the sealing process, an acting force is applied to the adhesive tape on the lens mold acted by the rolling shaft of the adhesive tape pressing mechanism, so that the adhesive tape can better re-attach to the lens mold, the reliability of the adhesive tape and the lens mold after the adhesive tape is attached again is ensured.

As shown in fig. 4 and 5, the frame 1 is further provided with a first vision system 11 for measuring a gap between the lens molds fixed on the holding mechanism, the first vision system 11 includes a first industrial camera 110 mounted on the frame at the side of the holding mechanism, a first auxiliary light source 111 is provided on the frame opposite to the first industrial camera, the first industrial camera is provided to position the lens molds on the holding mechanism, so that the pouring assembly can be positioned better, and the first auxiliary light source is provided to provide a bright shooting environment for the first industrial camera, so that images can be obtained more accurately.

Frame 1 on still be equipped with the second vision system 12 that detects lens mould monomer liquid level, second vision system 12 is including just setting up the second industry camera 120 in the frame to lens mould surface, the second industry camera of setting is arranged in detecting the free liquid of lens in the lens mould of pouring process for with the pouring subassembly cooperation work, when different liquid levels, the pouring subassembly has different pouring speed, also be equipped with the second auxiliary light source that is used for the auxiliary lighting of second industry camera in the frame.

As shown in fig. 10, the holding mechanism 2 comprises a mounting plate 10 connected to the frame, a through hole 101 is provided on the mounting plate, a bearing 20 is provided in the through hole 101, a hollow shaft 21 is provided in the bearing 20, a vacuum chuck 22 is provided at one end of the hollow shaft 21, an air inlet connector 23 is provided at the other end, the air inlet connector is connected to a vacuum generator, the surface of the hollow shaft 21 is provided with a first synchronous wheel 24, the mounting plate 10 is also provided with a driving motor 25, the output end of the driving motor 25 is provided with a second synchronous wheel 26, the first synchronous wheel 24 and the second synchronous wheel 26 are connected through a synchronous belt, a holding mechanism which can fix the lens mould through vacuum adsorption and can be driven to rotate by the motor is realized, the holding mechanism can rotate to be matched with the tearing and sealing mechanism, the tearing of a long adhesive tape is realized, meanwhile, the lens mould sealing device can be matched with an adhesive tape pressing mechanism to realize resetting of a torn adhesive tape and finish sealing of the lens mould.

As shown in fig. 4 and fig. 11, 12 and 13, the casting assembly 4 includes a displacement assembly 40 mounted on the frame, the displacement assembly is a mechanism which is composed of a motor and a screw rod mechanism and realizes displacement in the X direction and the Z direction, a flow control assembly 41 is disposed at a movable end of the displacement assembly 40, a casting tube 42 which is cast into the lens mold is further disposed on the displacement assembly 40, the flow control assembly 41 includes a fixing plate 410 fixedly connected with the displacement assembly, a valve body assembly 411 is disposed on a lower surface of the fixing plate 410, a control assembly 412 is disposed on an upper surface of the fixing plate 410, the control assembly 412 is matched with the valve body assembly 411, the valve body assembly 411 is connected with the casting tube 42, the control assembly includes a flow control motor 4120 mounted on the fixing plate, a cam 4121 is connected to an output end of the flow control motor 4120, the valve body assembly 411 includes a, u type fixing base 4110's opening part is equipped with fixing base apron 4111, be equipped with the through-hole that supplies hose 4116 to pass of two upper and lower faces that runs through on U type fixing base 4110, the hose is connected with pouring pipe 42, U type fixing base 4110's opening is equipped with round briquetting 4112, be equipped with guiding axle 4113 on the fixing base apron 4111, guiding axle 4113's one end is connected with round briquetting 4112, the other end is equipped with push pedal 4114, guiding axle 4113 on be equipped with reset spring 4115, reset spring 4115's one end is connected with round briquetting, the other end is connected with fixing base apron, global and the push pedal surface laminating of cam, the round briquetting of pushing head is under reset spring's effect, the briquetting of pushing head is pressed and is covered on the hose, makes the hose be in the state of cuting, flow control motor drives the cam and rotates, the cam rotation acts on the push pedal, the push pedal drives the guiding axle and, and controlling the opening degree of the hose to complete the flow regulation.

As shown in fig. 1, 2, 4, 14 and 15, the frame 1 is further provided with a feeding mechanism 14 for clamping the lens module from the feeding assembly 13 and delivering the lens module to the holding mechanism, the feeding mechanism 14 includes a fixing block 140, the fixing block 140 is provided with an inclined surface, a rotary tilt cylinder 141 is mounted on the inclined surface, an output end of the rotary tilt cylinder 141 is provided with a triangular connecting portion 142, the triangular connecting portion 142 is provided with a lifting cylinder 143, an output end of the lifting cylinder 143 is provided with a pneumatic claw cylinder 144, the pneumatic claw cylinder 144 is provided with a gripper 145 for clamping the lens mold, the feeding assembly is a conventional belt-type conveying mechanism, the lens mold is placed on the feeding assembly, the feeding assembly conveys the lens mold to a feeding position, and the feeding mechanism can realize 90-degree direction conversion and convert the lens mold from a horizontal state to a vertical state.

in conclusion, the invention has the following beneficial effects:

Claims

1. Duplex position casting machine, it includes two lens mould gating systems that set up side by side, feeding subassembly and ejection of compact subassembly of two lens mould gating system sharings, its characterized in that: the feeding and discharging mechanism of the lens mold is used for feeding an empty lens mold into the feeding assembly and taking a filled lens mold from the discharging assembly, the feeding and discharging mechanism of the lens mold comprises a bridge, the feeding mechanism and the discharging mechanism are arranged below the bridge, the feeding mechanism is used for placing a lens module into the feeding assembly, and the discharging mechanism is used for taking a poured lens mold from the discharging assembly;

The lens mold pouring system comprises a rack, wherein a retaining mechanism is arranged on the rack and used for fixing the lens mold and driving the lens mold to rotate; the tearing and sealing mechanism is arranged on the rack and positioned on the side edge of the retaining mechanism, and is used for grabbing the end part of the adhesive tape on the surface of the lens mold and then separating the adhesive tape from the lens mold to form an opening which is not covered by the adhesive tape; after the pouring is finished, the adhesive tape is matched with the retaining mechanism to enable the torn adhesive tape to be attached back again, and the sealing is finished; the lens mould further comprises a pouring assembly connected to the frame and positioned above the retaining mechanism, wherein the pouring assembly is used for injecting the lens monomer into an inner cavity of the lens mould;

The holding mechanism comprises a mounting plate connected with the frame, a through hole is formed in the mounting plate, a bearing is arranged in the through hole, a hollow shaft is arranged in the bearing, a vacuum sucker is arranged at one end of the hollow shaft, an air inlet connector is arranged at the other end of the hollow shaft and connected with a vacuum generator, a first synchronizing wheel is arranged on the surface of the hollow shaft, a driving motor is further arranged on the mounting plate, a second synchronizing wheel is arranged at the output end of the driving motor, and the first synchronizing wheel and the second synchronizing wheel are connected through a synchronizing belt.

2. The double-station casting machine according to claim 1, characterized in that: the two ends of the bridge frame are respectively provided with a feeding table board and a discharging table board, the feeding table board and the discharging table board are respectively provided with a moving assembly used for driving a material tray bearing a lens mold to move, the moving assembly comprises a sliding guide rail arranged on the rack, a sliding bearing plate is arranged on the sliding guide rail, and the rack is provided with a translation motor used for driving the bearing plate to move on the sliding guide rail.

3. The double-station casting machine according to claim 1, characterized in that: tear and seal mechanism include with the mounting panel that keeps the mechanism sharing, the mounting panel is fixed in the frame, is equipped with guide rail set spare on the mounting panel, is equipped with the sliding part on the guide rail set spare, still be equipped with the drive sliding part on the mounting panel and tear a cylinder of motion on the guide rail, the sliding part is equipped with installation panel, is equipped with on the installation panel to be used for pressing from both sides the clamp that gets the subassembly of getting the sticky tape tip.

4. The double-station casting machine according to claim 3, characterized in that: the clamping assembly comprises a rotary cylinder fixed on the mounting plate, the output end of the rotary cylinder is connected with a movable clamp, and a fixing clamp fixedly connected to the mounting plate.

5. The double-station casting machine according to claim 3, characterized in that: the clamping assembly comprises a fixed clamping block fixedly connected to the installation plate, a clamping cylinder is arranged on the fixed clamping block, a movable clamping block capable of rotating is arranged on the fixed clamping block, and the movable end of the clamping cylinder is hinged to the movable clamping block.

6. the double-station casting machine according to claim 1, characterized in that: the frame on still be equipped with tear the moulding tape mechanism that seals the mechanism cooperation and use, moulding tape mechanism include with the shared mounting panel of hold mechanism, be equipped with the cylinder fixed plate on the mounting panel, the guide arm cylinder is installed on the cylinder fixed plate, the flexible end of guide arm cylinder is connected with the connection foot, is equipped with the roll axis to lens mould surface laminating on the connection foot.

7. The double-station casting machine according to claim 1, characterized in that: the casting assembly comprises a displacement assembly installed on the frame, a flow control assembly is arranged at the movable end of the displacement assembly, a casting pipe cast into the lens mold is further arranged on the displacement assembly, the flow control assembly comprises a fixing plate fixedly connected with the displacement assembly, a valve body assembly is arranged on the lower surface of the fixing plate, a control assembly is arranged on the upper surface of the fixing plate, the control assembly is matched with the valve body assembly, and the valve body assembly is connected with the casting pipe.

8. The double-station casting machine according to claim 1, characterized in that: the frame on still be equipped with the feed mechanism of lens module centre gripping and delivering to on the retaining mechanism from the feeding subassembly, feed mechanism includes the fixed block, is equipped with the inclined plane on the fixed block, installs rotatory tilt cylinder on the inclined plane, the output of rotatory tilt cylinder is equipped with triangle connecting portion, is equipped with the lift cylinder on the triangle connecting portion, the output of lift cylinder is equipped with the gas claw cylinder, is equipped with the hand claw tight to the lens mould clamp on the gas claw cylinder.