JP2022008171A - Lens and metal mold transfer system - Google Patents

Abstract

To quickly clean a metal mold before charging a lens raw material after taking out a molded lens.SOLUTION: A lens and metal mold transfer system 100 includes: an upper core pick-up part 140 for picking up an upper core 15 of a metal mold 10 to take out a molded lens 40 in the process of transferring the metal mold 10; molded lens transfer parts 151 and 152 that pick up and transfer the molded lens 40 exposed to the outside by picking up the upper core 15; an air suction part 156 which is arranged so as to cover a lower core 14 of the metal mold 10 after the molded lens 40 is picked up by the molded lens transfer parts 151 and 152, and which sucks air so as to clean the metal mold 10; and a lens raw material transfer part 153 that loads a lens raw material 30 on the lower core 14 after the metal mold 10 is cleaned by the air suction part 156. The molded lens transfer parts 151 and 152, the air suction part 156, and the lens raw material transfer part 153 are formed to move together.SELECTED DRAWING: Figure 1

Description

The present invention relates to a system in which a lens raw material carried in is molded into a preset shape and connected to a lens molding machine to be carried out to transfer a lens and a mold.

In recent years, digital cameras, camera phones, webcams, and the like have become smaller and thinner, and the size of camera modules has gradually decreased. As the camera module becomes smaller in this way, the demand for lenses has increased significantly.

Such lenses are produced by grinding or press forming, but the grinding method is not suitable for mass production. Therefore, in recent years, there are many press molding methods in which lens raw materials are put in the upper core and the lower core, the upper core and the lower core are assembled, and then the upper core and the lower core are put into a lens molding machine and molded by a high temperature heating step, a pressing step and a cooling step. It is used.

A lens and a mold transfer system are connected to the lens molding machine so that the above steps can be continuously performed. In the lens and mold transfer system, the molded lens is taken out from the mold discharged from the lens molding machine and loaded, the lens raw material for molding is put in the mold, and the mold is returned to the lens molding machine. It is configured to be thrown in.

The lens molding machine and the lens and mold transfer system connected to the lens molding machine constitute a lens molding system that produces a lens. Therefore, the cycle time of the lens and mold transfer system affects the cycle time of the lens molding system. Therefore, there is a need for research on a system that quickly transfers lenses and molds with a more efficient flow line.

Conventionally, in order to transfer the mold carried in through the mold carrying unit to the mold loading unit, a mold transfer device is separately provided for each preset transfer area. Therefore, there is a problem that the number of mold transfer devices increases and the mold transfer process is delayed accordingly.

Further, when the mold cleaning process is not included in the lens and mold transfer process, the molded lens may be defective due to dust, foreign matter, broken lens pieces, or the like in the mold. Therefore, the addition of a mold cleaning process is required. However, since the addition of the process is a factor that delays the cycle time of the lens forming system, the process must be performed as quickly as possible.

In addition, the lens and mold transfer system separates the upper core from the mold ejected from the lens molding machine, removes the molded lens, and then places the lens raw material on the lower core to reassemble the upper core. It is composed. Here, centering for positioning the mold at a preset position is a prerequisite for accurately performing the above process, and is an element for reducing the defect rate. Therefore, there is a need for research on a method for centering a mold with high accuracy.

On the other hand, when the mold is separated to take out the molded lens, the molded lens may be attached to the upper core, but is usually placed on the lower core. However, the molded lens attached to the upper core is always located at a specific position, but the molded lens mounted on the lower core may move slightly on the lower core due to the influence of the separation of the upper core. Therefore, there is a demand for a technique for taking out a molded lens located at an arbitrary position on the lower core and loading it on a molded lens tray.

Further, when the mold carrying portion is configured by a conveyor method and the defective mold is picked up by the mold carrying portion by a clamp method when the defective mold is discharged from the lens forming machine, the conveyor belt The width was limited to the width of the mold. That is, when the size of the mold was changed, it was necessary to change to a conveyor belt having a corresponding width, which was a factor that hindered the versatility of the lens and the mold transfer system. Therefore, in order to improve versatility, research on a technology that can solve the above problems is required.

On the other hand, if the lens and mold transfer system is shut down with the upper core picked up, the problem of the upper core falling may occur. Since the picked up upper core is located on the mold of other parts other than the upper core, if the upper core falls, the entire mold will be damaged. Therefore, in preparation for such a case, there is a demand for a technique for minimizing the damage caused by the fall of the upper core.

A first object of the present invention is to provide a technique for minimizing the number of devices involved in transferring a mold carried into a mold carrying unit to a mold charging unit.

A second object of the present invention is to provide a technique for quickly cleaning a mold after taking out a molded lens and before charging the lens raw material.

A third object of the present invention is to provide a technique for positioning a mold in a preset position for the process of separating the upper core, taking out a molded lens, loading lens raw materials, and reassembling the upper core. be.

A fourth object of the present invention is to provide a technique capable of taking out a molded lens at any position on the lower core and loading the taken-out molded lens on a molded lens tray. be.

A fifth object of the present invention is to provide a technique that does not require adjustment of the width of the conveyor belt of the mold carrying portion even if the mold is changed.

A sixth object of the present invention is to provide a technique for minimizing damage caused by a fall of the upper core when the equipment is shut down with the upper core separated.

In order to achieve the first object of the present invention, the present invention is arranged between a transfer table provided so that the mold is slid-transferred, and the transfer table and the mold charging portion of the lens forming machine, and the transfer is performed. A height correction unit that is formed so as to be movable up and down so as to compensate for the difference in height between the table and the mold insertion unit, and the mold is slidly transferred from the transfer table to the mold insertion unit. The mold transfer loader includes a mold transfer loader to be formed, and the mold transfer loader linearly transfers the mold from the transfer table to the height correction unit, and from the height correction unit to the mold loading unit. Disclosed is a lens and a mold transfer system formed to rotate and transfer the mold.

The mold charging section is arranged perpendicular to the transfer table.

The mold transfer loader is formed so as to rotate 90 degrees at the height correction unit and transfer the mold to the mold loading unit.

The height correction portion is formed so as to rise to a height corresponding to the mold insertion portion when the mold is placed.

When the height correction unit rises, the mold transfer loader rotates so as to slide and transfer the mold mounted on the height correction unit to the mold loading unit.

The height correction unit is formed so as to descend to a height corresponding to the transfer table when the mold is transferred to the mold charging unit.

The mold transfer loader includes a transfer guide arranged along the extension direction of the transfer table, a transfer member provided on the transfer guide that slides along the transfer guide, and an elevating / lowering member provided on the transfer member. The guide, an elevating member provided on the elevating guide so as to be elevated, and a gripping unit rotatably provided on the elevating member to grip the mold may be included.

When the height correction unit rises while the gripping unit grips the mold placed on the height correction unit, the mold moves relative to the gripping unit.

The gripping unit may be formed so as to adjust the gripping force for gripping the mold according to the position of the mold.

The gripping force of the gripping unit when the height correction unit is raised may be set to be larger than the gripping force of the gripping unit when the height correction unit is transferred to the mold charging unit.

In order to achieve the second object of the present invention, the present invention is an upper core pickup unit formed so as to pick up the upper core of the mold for taking out the molded lens during the process of transferring the mold. A molded lens transfer unit formed so as to pick up and transfer a molded lens exposed to the outside by the pickup of the upper core, and a lower mold after the molded lens is picked up by the molded lens transfer unit. An air suction portion arranged so as to cover the core and formed to suck air for cleaning the mold, and a lens raw material to the lower core after the mold is cleaned by the air suction portion. A lens and mold transfer system, including a lens raw material transfer unit formed to be mounted, the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit, which are formed to move together. Disclose.

The molded lens transfer unit is formed so as to attract a first molded lens transfer module formed so as to adsorb a molded lens mounted on the lower core and a molded lens attached to the upper core. 2 Includes a molded lens transfer module.

The air suction unit is arranged between the first molded lens transfer module and the lens raw material transfer unit.

When the molded lens is attracted by the first molded lens transfer module, the second molded lens transfer module may not be driven, and the air suction portion may be driven to clean the mold.

The air suction unit may be arranged so as to vertically overlap with the second molded lens transfer module.

The air suction portion may be formed so as to be relatively movable up and down with respect to the second molded lens transfer module.

The first molded lens transfer module may be arranged so as to cover a larger area than the molded lens, and may include a plurality of suction units for adsorbing the molded lens mounted on the lower core.

The plurality of suction units may be connected in parallel to one vacuum generator so that the valve opens when the molded lens is sucked and the valve closes when the molded lens is not sucked.

The lens and mold transfer system includes a transfer table provided for slide transfer of the mold, and a mold transfer loader formed so as to slide and transfer the mold in the first direction on the transfer table. The upper core pickup unit is arranged so as to overlap the transfer table, and the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit are in a second direction perpendicular to the first direction. It is formed to move together in a direction.

The lens and mold transfer system further includes a guide rail extending in the second direction and a moving member provided on the guide rail and moving along the guide rail, the molded lens transfer unit, and the air suction. The unit and the lens raw material transfer unit are provided on the moving member, respectively.

In order to achieve the third object of the present invention, the present invention is provided with a transfer table provided with a rotating plate for rotating the mold, and the mold on the transfer table. The mold transfer loader includes a mold transfer loader formed so as to slide and transfer the mold, and a mold centering portion for pressurizing and centering the rotated mold placed on the rotating plate from both sides. Is provided with a laser sensor including a laser transmitting unit and a laser receiving unit, a reflecting plate is provided in the mold centering unit, and the laser sensor and the reflecting plate are provided while the mold is rotated by the rotating plate. Are arranged on both sides of the mold, and at any position of the mold, the reflecting plate is formed so as to reflect the laser emitted from the laser transmitting portion toward the laser receiving portion. Disclose the lens and mold transfer system.

While the mold is rotated by the rotating plate, the optical path that the laser emitted from the laser transmitting portion is reflected by the reflecting plate and received by the laser receiving unit is arranged eccentrically from the center of the rotating plate. Will be done.

The laser emitted from the laser transmitting portion is blocked by the round portion of the mold at a position other than any of the above positions, and the D-Cut Portion of the mold is blocked at any of the positions. ) Releases the cutoff.

The mold transfer loader includes a transfer guide arranged along the extension direction of the transfer table, a transfer member provided on the transfer guide that slides along the transfer guide, and an elevating / lowering member provided on the transfer member. The elevating member includes a guide, an elevating member provided on the elevating guide so as to be able to elevate, and a gripping unit provided on the elevating member to grip the mold, and the laser sensor is mounted on the elevating member. May be good.

When the mold is positioned on the rotating plate by the mold transfer loader, the gripping unit may angrip the mold, and the elevating member may be raised to a height corresponding to the reflector. ..

The mold centering portion is provided on a moving guide arranged perpendicular to the extension direction of the transfer table, a moving member provided on the moving guide and sliding along the moving guide, and the moving member. A gripping unit including a first gripper and a second gripper for gripping the mold from both sides is provided, and the reflector is provided on the front surface portion of the first gripper or the second gripper. May be good.

The first gripper is provided with a plurality of rollers that roll and contact the D-cut portion at a distance from each other, and the second gripper is provided with a plurality of rollers that roll and contact the round portion at a distance from each other. ..

An air suction hole for sucking the surrounding air is formed in the rotating plate, and when the mold is placed on the rotating plate, the mold is fixed by sucking the surrounding air from the air suction hole. It may be done.

A nitrogen supply hole is formed in the rotary plate, and when the mold is centered by the mold centering portion, nitrogen is supplied from the nitrogen supply hole to the gap inside the holder of the mold. May be good.

The transfer table is provided with a vibrating portion that vibrates the mold before the mold is transferred to the rotating plate, and the vibrating portion is provided with a vibrating portion in which surrounding air is sucked and placed. Air suction holes may be formed to secure the mold.

In order to achieve the fourth object of the present invention, the present invention is formed so as to attract and transfer a molded lens exposed to the outside by picking up the upper core of the mold, and mounts the molded lens on the lower core of the mold. A molded lens transfer unit including a first molded lens transfer module that adsorbs the molded lens, a second molded lens transfer module that adsorbs the molded lens attached to the upper core of the mold, and the first molded lens transfer module. A molded lens temporary loading section provided for mounting the molded lens picked up by the lens, a molded lens loading tray support section on which the molded lens loading tray is mounted, and a first suction formed so as to be movable in three axes. A molded lens loading portion including a unit and a second suction unit, and a molded lens centering section formed so as to center the molded lens, the first suction unit is mounted on the molded lens temporary loading section. The molded lens is formed so as to be sucked and transferred to the molded lens centering portion, and the second suction unit sucks the molded lens mounted on the molded lens centering portion and loads the molded lens on the molded lens loading tray. Disclosed is a lens and mold transfer system that is formed to do so.

The molded lens temporary loading portion is formed with a mounting surface having a larger area than the lower core.

The molded lens centering portion is arranged between the molded lens temporary loading portion and the molded lens loading portion.

The first suction unit and the second suction unit are movably formed at positions overlapping on the upper side of the molded lens centering portion.

The first molded lens transfer module is arranged so as to cover a larger area than the molded lens, and includes a plurality of suction units that attract the molded lens mounted on the lower core.

The plurality of suction units may be connected in parallel to one vacuum generator so that the valve opens when the molded lens is sucked and the valve closes when the molded lens is not sucked.

The first suction unit is arranged so as to cover a wider area than the molded lens, and includes a plurality of suction devices that suck the molded lens mounted on the temporarily loaded portion of the molded lens.

The plurality of suction devices may be connected in parallel to one vacuum generator so that the valve opens when the molded lens is sucked and the valve closes when the molded lens is not sucked.

The molded lens loading portion includes a first guide member extending along one side of the molded lens loading tray, a first moving member provided on the first guide member and moving along the first guide member. A second guide member provided on the first moving member and extending along the other side of the molded lens loading tray perpendicular to the one side, and a second guide member provided on the second guide member along the second guide member. Further including a second moving member that moves, the first suction unit and the second suction unit may be provided on the second moving member, respectively, and may move up and down.

The molded lens centering portion is formed so that the molded lens is mounted, and is formed so as to slide on a mounting portion having a support wall on one side and the above-mentioned mounting portion and to be slid on the support wall. A first slider having a first pressurizing surface facing the first pressurizing surface and a second pressurizing surface perpendicular to the first pressurizing surface, and a first slider formed so as to slide and move on the above-mentioned prescription portion, and arranged to face the second pressurizing surface. It may include a second slider to be crossed.

In order to achieve the fifth object of the present invention, the present invention is arranged on one side of a mold carrying-in portion for carrying in a mold discharged from a lens forming machine and the mold carrying-in portion, and is a normal mold. Positioned in one direction: a mold loading unit formed to load defective molds separately, and a transfer table arranged on the other side of the mold loading unit and provided so that the mold can be slid and transferred. The mold transfer unit includes a mold transfer unit formed so as to transfer a mold from any one of the mold loading unit, the mold carrying unit, and the transfer table to the other one. Is a pickup device formed so as to pick up a normal mold loaded on the mold loading portion and place it at a preset position on the transfer table, and a mold carried into the mold carrying portion. Disclosed is a lens and mold transfer system, including a push device formed to push a mold into a preset position on the transfer table.

The pickup device is formed so as to pick up the defective mold and place it on the mold loading portion when the defective mold is transferred to a preset position of the transfer table.

When the defective mold is discharged from the lens molding machine, the push device pushes the defective mold carried into the mold carrying portion to a preset position of the transfer table, and the pickup device is said to be the pick-up device. It is formed so as to pick up a defective mold transferred to a preset position of the transfer table and place it on the mold loading unit.

The lens and mold transfer system further include a mold transfer loader formed to slide and transfer the mold on the transfer table, and if a defective mold is generated during the slide transfer of the mold, the mold is said to be. The mold transfer loader transfers the defective mold to the preset position of the transfer table, and the pickup device picks up the defective mold transferred to the preset position of the transfer table and the mold. It is formed so as to be placed on the loading part.

The mold transfer unit further includes a slide guide arranged perpendicular to the extension direction of the mold carrying portion, and a slide member provided on the slide guide and sliding along the slide guide. The pickup device and the push device are provided on the slide member so as to be able to move up and down.

The mold loading portion is provided on a guide rail arranged along an extension direction of the mold carrying portion, a moving member provided on the guide rail and sliding along the guide rail, and the moving member. And include a mold loading plate with a plurality of mold mounting recesses.

The moving direction of the pickup device is perpendicular to the moving direction of the mold loading plate.

The mold loading plate may be detachably coupled to the moving member.

A vibrating portion that vibrates the placed mold is provided at a preset position of the transfer table, and an air suction hole for sucking the surrounding air is formed in the vibrating portion and mounted. The mold may be fixed.

The pickup device includes a gripper formed to grip or angrip the mold by adjusting the distance between the two, and a support hook provided on the lower portion of the gripper and supporting the lower portion of the mold. Grooves into which the support hooks are inserted are long extending on both sides of the air suction hole in the vibrating portion.

The transfer table includes a plurality of tables, and any one table provided with the vibration unit is arranged so as to be separated from another adjacent table by a predetermined time.

In order to achieve the sixth object of the present invention, the present invention has a transfer table provided so that the mold is slid-transferred, and a mold formed so as to slide-transfer the mold on the transfer table. It is arranged so as to overlap with the transfer loader on the transfer table, and is formed so as to pick up the upper core of the mold for taking out the molded lens during the process of transferring the mold by the mold transfer loader. The upper core pickup portion includes a moving member formed so as to be movable up and down, and a suction portion provided below the moving member and formed so as to suck the upper core. A unit and a mold receiver that rotates in conjunction with the vertical movement of the moving member are included, and at least a part of the mold receiver is a first position between the suction unit and the transfer table, and the suction unit. Discloses a lens and mold transfer system that moves between the transfer table and a second position that deviates from the transfer table.

At least a part of the mold holder is located at the first position at the maximum ascending point of the moving member and at the second position at the maximum descending point of the moving member.

The mold holder includes a main body and a hinge portion provided with a hinge shaft to which the main body is hinged, and the main body is attached to an extension portion extending from the hinge portion and the extension portion, and the first position thereof. Including a receiving portion arranged to face the suction unit.

The body further includes a protrusion that projects parallel to the hinge axis, and the moving member comprises a push that pushes the protrusion so that the body rotates about the hinge when ascending.

The mold holder may further include an elastic member that is connected so as to urge the main body and moves the receiving portion from the first position to the second position.

Further, the present invention includes an upper core pickup portion formed so as to pick up the upper core of the mold for taking out the molded lens during the process of transferring the mold, and the upper core pickup portion may be used. A moving member formed so as to be movable up and down, a suction unit provided below the moving member and formed so as to suck the upper core, and a mold that rotates in conjunction with the vertical movement of the moving member. A lens and mold transfer system that moves at least a portion of the mold receiver, including a receiver, between a first position below the suction unit and a second position off the bottom of the suction unit. Disclose.

The effects of the present invention obtained by the above solutions are as follows.

First, since the mold transfer loader is formed so as to linearly transfer the mold from the transfer table to the height correction unit and to rotate the mold from the height correction unit to the mold insertion unit. The device for transferring the mold carried into the mold carrying unit to the mold loading unit is unified, and the lens and the mold transfer system can be configured more simply. In addition, by unifying the transfer device, the mold can be transferred quickly.

Secondly, since the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit are sequentially arranged and move together, the mold can be quickly removed after the molded lens is taken out and before the lens raw material is charged. Can be cleaned. In addition, the defective rate of the molded lens can be reduced by periodically cleaning the mold.

Thirdly, the laser sensor provided in the mold transfer loader and the reflector provided in the mold centering portion allow the D-cut portion of the mold to be positioned at a preset position, and the mold centering portion can be positioned. The mold can be centered with high accuracy by the plurality of rollers provided in the first and second grippers. Therefore, it is possible to prevent the occurrence of defects in the process of separating the upper core, taking out the molded lens, inputting the lens raw material, and reassembling the upper core.

Fourth, the molded lens placed at any position on the lower core is transferred to the molded lens loading tray by a plurality of suction units or suction devices arranged so as to cover a larger area than the molded lens. The process can be performed stably. Further, since the molded lens is centered in the process of transferring the molded lens, the molded lens can be loaded in a fixed position on the molded lens loading tray.

Fifth, the push device is formed so as to push the mold carried into the mold loading portion to the transfer table, and the pickup device is a mold from either one of the mold loading portion and the transfer table to the other. Since it is formed so as to transfer the mold, it is not necessary to narrow the width of the mold carrying portion even if the size of the mold is reduced. Therefore, versatility is improved.

Sixth, in conjunction with the vertical movement of the upper core pickup unit, when the upper core pickup unit rises, the mold holder moves so that it is located below the upper core in preparation for the fall of the picked up upper core. Therefore, even if the equipment is shut down with the upper core separated, the damage caused by the fall of the upper core can be minimized.

It is a perspective view which looked at the lens and mold transfer system by one Embodiment of this invention from one direction. It is a perspective view which looked at the lens and mold transfer system by one Embodiment of this invention from the other direction. FIG. 3 is a plan view of the lens and mold transfer system of FIG. 1. It is a perspective view which shows the 1st example of the mold used for the lens and the mold transfer system shown in FIG. It is sectional drawing which shows the 1st example of the mold used for the lens and the mold transfer system shown in FIG. It is a perspective view which shows the 2nd example of the mold used for the lens and the mold transfer system shown in FIG. It is sectional drawing which shows the 2nd example of the mold used for the lens and the mold transfer system shown in FIG. It is a conceptual diagram which shows an example of the lens raw material used for the lens and the mold transfer system shown in FIG. It is a conceptual diagram which shows an example of the lens shown in FIG. 3 and the molded lens taken out from the mold transfer system. It is a perspective view of the mold carrying part shown in FIG. It is a perspective view of the mold loading part shown in FIG. It is a figure for demonstrating the mold transfer unit shown in FIG. It is a perspective view which shows the transfer table shown in FIG. It is a perspective view of the mold transfer loader shown in FIG. It is a perspective view which shows the mold centering part shown in FIG. It is a figure for demonstrating the centering of the mold by the laser sensor and the reflector shown in FIGS. 12 and 13. It is a figure for demonstrating the centering of a mold by the mold centering part shown in FIG. It is a perspective view which shows the upper core pickup part shown in FIG. It is a figure for demonstrating the operation of the mold holder shown in FIG. It is a figure for demonstrating the operation of the mold holder shown in FIG. It is a perspective view which shows the height correction part shown in FIG. It is a figure for demonstrating the gripping force of the mold transfer loader at each position of the mold on the transfer table shown in FIG. It is a perspective view which shows the lens raw material pickup part shown in FIG. It is a perspective view which shows the lens raw material temporary loading part shown in FIG. FIG. 3 is a perspective view of the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit shown in FIG. 3 as viewed from above. FIG. 3 is a perspective view of the molded lens transfer section, the air suction section, and the lens raw material transfer section shown in FIG. 3 as viewed from below. It is a figure for demonstrating that the molded lens on the lower core is adsorbed by the 1st molded lens transfer module shown in FIG. 23. It is a conceptual diagram of a plurality of suction units shown in FIG. 24. It is a perspective view which shows the molded lens loading part shown in FIG. It is a perspective view which shows the molded lens temporary loading part shown in FIG. It is a figure for demonstrating that the molded lens on the molded lens temporary loading part is sucked by the 1st suction unit shown in FIG. 26. It is a perspective view which shows the molded lens centering part shown in FIG. It is a conceptual diagram which shows the whole process of the lens and mold transfer system shown in FIG.

Hereinafter, the lens and mold transfer system according to the present invention will be described in more detail with reference to the accompanying drawings.

In explaining the embodiments of the present invention, if it is determined that the specific description of the related known art makes the gist of the embodiments of the present invention unclear, the detailed description thereof will be omitted.

The accompanying drawings are merely to assist in understanding the embodiments of the present invention, and the attached drawings do not limit the technical idea of the present invention, and all changes and equality included in the idea and the technical scope of the present invention. It should be understood to include objects or alternatives.

In the following description, the singular representation includes multiple representations unless otherwise noted.

As used herein, terms such as "include" and "have" are intended to specify the existence of features, numbers, stages, actions, components, parts or combinations thereof described herein. It should be understood that the existence or addability of one or more other features, numbers, stages, actions, components, parts or combinations thereof is not preliminarily excluded.

1 and 2 are perspective views of the lens and mold transfer system 100 according to the embodiment of the present invention as viewed from different directions, and FIG. 3 is a plan view of the lens and mold transfer system 100 of FIG. be.

Referring to FIGS. 1 to 3, a lens molding machine (not shown) is a device that molds a lens raw material (GOB), which is a molding target, into a preset shape and discharges the lens raw material (GOB). The lens raw material is charged into the lens molding machine in a state of being housed in the mold 10, and is discharged from the lens molding machine after the molding process is performed.

For example, when a square plate-shaped lens raw material 30 (see FIG. 6) is placed in a mold 10 and the mold 10 is put into a lens molding machine, a high temperature heating step-molding step-cooling step is performed and a plurality of lenses are formed. The mold 10 including the molded molding lens 40 (see FIG. 7) is discharged from the lens molding machine.

A lens and a mold transfer system 100 are connected to the lens forming machine so that the above steps can be continuously performed.

That is, the lens and the mold transfer system 100 takes out the molded lens from the mold 10 discharged from the lens molding machine, loads the molded lens, puts the lens raw material for molding in the mold 10, and puts the mold 10 into the mold 10. It is configured to be reinserted into the lens molding machine.

The lens and mold transfer system 100 is configured to carry in the mold 10 discharged from the lens molding machine, transfer it by a preset route, and then carry it out to the lens molding machine again. Therefore, the lens and mold transfer system 100 includes a mold carry-in unit 111 and a mold transfer unit 120.

In this embodiment, a structure is shown in which a mold transfer unit 120 is connected to a mold charging unit 1 of a lens forming machine provided with a mold transfer means (for example, a conveyor). In this structure, the lens and the mold transfer system 100 are not separately provided with a mold carry-out unit.

However, the present invention is not limited to this. If the mold loading unit 1 of the lens forming machine does not include the mold transfer means, the lens and the mold transfer system may further include a mold unloading unit that pushes the mold into the mold loading unit 1.

The lens and mold transfer system 100 is configured to separate the mold 10 in the process of transferring the mold 10 by a preset route. To that end, the lens and mold transfer system 100 includes a mold centering unit 130 and an upper core pickup unit 140.

Further, the lens and the mold transfer system 100 is configured to take out and load the molded lens 40 exposed to the outside by separating the mold 10 and to put the lens raw material 30 into the mold 10. Therefore, the lens and mold transfer system 100 includes a lens raw material pickup unit 160 involved in the transfer of the lens raw material 30, a lens raw material temporary loading unit 170 and a lens raw material transfer unit 153, and a molded lens involved in the transfer of the molded lens 40. It includes transfer units 151 and 152, a molded lens temporary loading unit 191 and a molded lens centering unit 192 and a molded lens loading unit 180.

Here, the lens and mold transfer system 100 includes an air suction unit 156 that quickly cleans the mold 10 after taking out the molded lens 40 and before charging the lens raw material 30.

The lens and mold transfer system 100 includes a control unit (not shown) that is electrically connected to the above-mentioned configuration to control the drive. The control unit may be electrically connected to the control unit of the lens molding machine or may be configured to be communicable with the control unit of the lens molding machine.

Hereinafter, the process of transferring the mold 10 to each main position (first position P1 to sixth position P6 shown in FIG. 19) will be briefly described.

First, the mold 10 is transferred to the first position P1 by the mold carrying portion 111, and the mold 10 located at the first position P1 is transferred to the second position P2 of the transfer table 122 by the push device 121d. To. After that, the mold 10 is transferred by the mold transfer loader 123 to the fourth position P4 where the rotating plate is arranged via the third position P3 on the horizontal mounting surface of the transfer table 122, and is molded at the fourth position P4. The lens 40 is taken out and the lens raw material 30 is charged. After that, the mold 10 is transferred by the mold transfer loader 123 to the sixth position P6 where the mold charging unit 1 is arranged via the fifth position P5 where the height correction unit 124 is arranged.

4A and 4B are conceptual diagrams showing the mold 10 of the first example used for the lens and the mold transfer system 100 shown in FIG. 3, FIG. 4A is a perspective view of the mold 10, and FIG. 4B is a perspective view. It is sectional drawing of the mold 10.

As shown in FIGS. 4A and 4B, the mold 10 used for the lens and mold transfer system 100 shown in FIG. 3 includes a holder 11, a support plate 12, a lower core 14 and an upper core 15.

The mold 10 of the first example has a single cavity 11a. The present invention is not necessarily limited to this. The mold 10 may have a plurality of cavities.

In the first example, the cavity 11a is formed so as to penetrate the holder 11 up and down. The holder 11 includes a round portion 11b and a D-cut portion 11c, and is formed in a low substantially columnar shape.

The round portion 11b is a portion made of a curved surface, and the D-cut portion 11c is a portion made of a flat surface. The distance from the center of the holder 11 to the D-cut portion 11c is shorter than the distance from the center of the holder 11 to the round portion 11b. Due to the D-cut portion 11c, the holder 11 has a shape in which a part of the side surface of the low cylinder is cut out.

A hole 11d communicating with the cavity 11a is formed on the side surface of the holder 11. The hole 11d functions as a passage through which the gas inside the holder 11 is discharged.

The lower core 14 and the upper core 15 are inserted into the cavity 11a.

At the upper part of the lower core 14, a lower molded portion having a shape corresponding to the shape of the lower part of the molded lens is formed. The lower molded portion may be arranged in the central portion of the lower core 14.

A support plate 12 is arranged below the lower core 14. That is, the lower core 14 is placed on the support plate 12. The support plate 12 may be arranged below the holder 11 and formed so as to cover the lower opening of the cavity 11a, or may be inserted into the cavity 11a of the holder 11 as shown in the figure.

In the first example, the support plate 12 is arranged under the lower core 14 and comes into surface contact with the transfer table 122 when the mold 10 is slid and transferred on the transfer table 122. Therefore, the support plate 12 prevents the lower core 14 from being worn.

Further, the thickness of the support plate 12 affects the height of the entire mold 10, which means that the thickness of the support plate 12 affects the thickness of the molded lens 40. Therefore, the thickness of the molded lens 40 can be finely adjusted by using the support plate 12 having a specific thickness.

The upper core 15 is inserted into the cavity 11a and is arranged so as to cover the lower core 14. At least a part of the upper core 15 is housed in the holder 11. At the lower part of the upper core 15, an upper molded portion having a shape corresponding to the shape of the upper part of the molded lens 40 is formed. The upper molded portion may be arranged in the central portion of the upper core 15.

A lens raw material 30 to be molded is arranged between the lower core 14 and the upper core 15 of the mold 10 charged into the lens molding machine, and the lower core 14 and the upper core 10 of the mold 10 discharged from the lens molding machine are arranged. A molded lens 40 is arranged between the cores 15.

The degree to which the upper core 15 is pressurized toward the lower core 14 in the lens forming machine may be adjusted by the moving distance value of the means for pressurizing the upper core 15. That is, the thickness of the molded lens 40 is determined by the moving distance value of the means for pressurizing the upper core 15.

5A and 5B are conceptual views showing a second example mold 20 used in the lens and mold transfer system 100 shown in FIG. 3, FIG. 5A is a perspective view of the mold 20, and FIG. 5B is a perspective view. It is sectional drawing of the mold 20.

As shown in FIGS. 5A and 5B, the mold 20 used in the lens and mold transfer system 100 shown in FIG. 3 includes a holder 21, a support plate 22, a lower core 24, an upper core 25, and a stop ring 26. The mold 20 of the second example is structurally different from the mold 10 of the first example described above in that the stop ring 26 is further included.

The mold 20 of the second example has a single cavity 21a. The present invention is not necessarily limited to this. The mold 20 may have a plurality of cavities.

In the second example, the cavity 21a is formed so as to penetrate the holder 21 up and down. The holder 21 includes a round portion 21b and a D-cut portion 21c, and is formed in a low substantially columnar shape.

The round portion 21b is a portion made of a curved surface, and the D-cut portion 21c is a portion made of a flat surface. The distance from the center of the holder 21 to the D-cut portion 21c is shorter than the distance from the center of the holder 21 to the round portion 21b. Due to the D-cut portion 21c, the holder 21 has a shape in which a part of the side surface of the low cylinder is cut out.

A hole 21d communicating with the cavity 21a is formed on the side surface of the holder 21. The hole 21d functions as a passage through which the gas inside the holder 21 is discharged.

The lower core 24 and the upper core 25 are inserted into the cavity 21a.

At the upper part of the lower core 24, a lower molded portion having a shape corresponding to the shape of the lower part of the molded lens is formed. The lower molded portion may be arranged in the central portion of the lower core 24.

A support plate 22 is arranged below the lower core 24. That is, the lower core 24 is placed on the support plate 22. The support plate 22 may be inserted into the cavity 21a of the holder 21, or may be arranged at the lower part of the holder 21 and formed so as to cover the lower opening of the cavity 21a as shown in the figure.

In the second example, the support plate 22 is arranged under the holder 21 and the lower core 24, and comes into surface contact with the transfer table 222 when the mold 20 is slid and transferred on the transfer table 222. Therefore, the support plate 22 prevents the holder 21 and the lower core 24 from being worn.

The upper core 25 is inserted into the cavity 21a and arranged so as to cover the lower core 24. At least a part of the upper core 25 is housed in the holder 21. At the lower part of the upper core 25, an upper molded portion having a shape corresponding to the shape of the upper part of the molded lens 40 is formed. The upper molded portion may be arranged in the central portion of the upper core 25.

The stop ring 26 is formed in an annular shape having a predetermined height, and is configured to accommodate the holder 21 inside. When the means for pressurizing the upper core 25 moves downward in the lens forming machine, if it hits the stop ring 26, the downward movement is restricted. That is, the thickness of the molded lens 40 is determined by the height of the stop ring 26.

A through hole 26a is formed on the side surface of the stop ring 26. The through hole 26a functions as a passage through which the gas inside the stop ring 26 is discharged.

The lens raw material 30 to be molded is arranged between the lower core 24 and the upper core 25 of the mold 20 that are put into the lens molding machine, and the lower core 24 and the upper core 20 of the mold 20 that are discharged from the lens molding machine are arranged. A molded lens 40 is arranged between the cores 25.

Hereinafter, for convenience of explanation, the process of transferring the mold 10 of the first example will be described as an example. In the process of transferring the mold 20 of the second example, in addition to the process of transferring the mold 10 of the first example, the stop ring 26 is disassembled by the mold transfer loader 123 before centering the mold 20. , The process of reassembling the stop ring 26 is further performed before the mold 20 is transferred to the height correction unit 124.

FIG. 6 is a conceptual diagram showing an example of the lens raw material 30 used in the lens and mold transfer system 100 shown in FIG. 3, and FIG. 7 is a molding taken out from the lens and mold transfer system 100 shown in FIG. It is a conceptual diagram which shows an example of a lens 40. Note that (a) is a plan view and (b) is a side view.

As shown in FIG. 6, the lens raw material 30 may be formed in the shape of a thin plate having a predetermined thickness. In the figure, the case where the lens raw material 30 is formed in the shape of a quadrangular plate is shown.

As shown in FIG. 7, a molded portion 40a is formed on the molded lens 40. In the figure, the case where the molded portion 40a is projected from both sides in a convex shape is shown. A plurality of molded lenses 40 may be provided, or may be separated into a plurality of lenses by cutting.

By forming the molded portion 40a, the thickness of the molded lens 40 becomes slightly thinner than the thickness of the lens raw material 30.

Hereinafter, the lens and mold transfer system 100, which can further simplify the conventional lens and mold transfer process, and the lens and mold transfer process will be specifically described.

8 to 29 are diagrams showing the configuration of the lens and mold transfer system 100 shown in FIGS. 1 to 3, and FIG. 30 shows the entire process of the lens and mold transfer system shown in FIG. 1. It is a conceptual diagram.

Therefore, if the arrangement and movement mechanism of each configuration shown in FIGS. 8 to 29 are understood with reference to FIG. 30, the lens and mold transfer system 100 of the present invention can be easily understood.

FIG. 8 is a perspective view of the mold carrying-in portion 111 shown in FIG.

As shown in FIG. 8, the mold carry-in unit 111 is connected to the mold discharge port of the lens molding machine, and is configured to carry the mold 10 discharged from the lens molding machine to the first position P1. In the figure, the case where the mold carry-in portion 111 extends from the mold discharge port of the lens forming machine toward the first position P1 in the −Y axis direction in the drawing is shown.

It is preferable that the mold carrying unit 111 transfers the mold 10 in the horizontal direction so that the height does not change in the Z-axis direction in the drawing.

The mold carrying unit 111 can be realized by various methods such as a push method and a conveyor method.

In the figure, a conveyor type mold carrying unit 111 is shown. Specifically, the mold carrying-in unit 111 includes a first roller 111a, a second roller 111b, a table 111c, and a conveyor belt 111d.

The first roller 111a and the second roller 111b are arranged apart from each other and have parallel rotation axes. The first roller 111a and the second roller 111b are configured to rotate in the same direction (clockwise in the drawing) and move the upper portion of the conveyor belt 111d in the −Y axis direction in the drawing.

The table 111c is arranged between the first roller 111a and the second roller 111b.

The conveyor belt 111d is wound around the first roller 111a and the second roller 111b in a loop. A table 111c is arranged below the upper conveyor belt 111d, and the mold 10 placed on the upper part of the conveyor belt 111d moves while being supported by the table 111c.

The side plate 111f of the mold carrying-in portion 111 is configured to be removable. Therefore, the operator can separate the side plate 111f and easily replace the conveyor belt 111d.

The mold carrying-in portion 111 may further include a stopper 111e that prevents the mold 10 from moving beyond the first position P1. The stopper 111e is arranged on the rear side of the first position P1 facing the mold discharge port of the lens forming machine and covers the conveyor belt 111d. Therefore, when the mold 10 reaches the first position P1, even if the conveyor belt 111d is rotating, the mold 10 hits the stopper 111e and cannot move any further.

FIG. 9 is a perspective view of the mold loading unit 113 shown in FIG.

As shown in FIG. 9, the mold loading unit 113 is formed so as to load a normal mold 10 that is charged at the initial stage of driving the lens and the mold transfer system 100, or a defective mold 10 that is generated during driving. ..

The mold loading portion 113 is provided with a mold mounting recess 113a corresponding to the shape of the lower portion of the mold 10, and whether or not the mold 10 is mounted on the bottom surface of the mold mounting recess 113a is determined. A sensor 113b for detecting may be provided. The mold mounting recesses 113a are arranged in a matrix. In the figure, a case where the mold mounting recesses 113a are arranged in a matrix in the X-axis direction and the Y-axis direction in the drawing is shown.

It should be noted that the normal mold 10 loaded on the mold loading unit 113 at the initial stage of driving the lens and the mold transfer system 100 is transferred to a preset position, or the defective mold 10 generated during driving is loaded on the mold. Loading on the unit 113 is performed by the mold transfer unit 121 (see FIG. 10), which will be described later. Referring to FIG. 10, the pickup device of the mold transfer unit 121 is configured to be movable in the X-axis direction and the Z-axis direction in the drawing.

The mold loading unit 113 is configured to be movable in the Y-axis direction in the drawing.

As described above, the pickup device of the mold transfer unit 121 is configured to be movable in the X-axis direction in the drawing, and the mold loading unit 113 is configured to be movable in the Y-axis direction in the drawing. Can be transferred in the X-axis direction and the Y-axis direction in.

In the figure, a case where the mold loading portion 113 is configured to be movable by the guide rail 113c and the moving member 113d for the movement is shown. The guide rail 113c extends in the Y-axis direction in the drawing. That is, the guide rail 113c is arranged along the extension direction of the mold carrying-in portion 111. The moving member 113d is provided on the guide rail 113c and is slidable along the guide rail 113c.

A mold loading plate 113e is attached to the moving member 113d. The mold loading plate 113e is formed with a plurality of mold mounting recesses 113a on which the mold 10 is mounted.

The mold loading plate 113e has a hole 113f or a groove into which the support hook 121c'' of the pickup device 121c is inserted when the pickup device 121c descends in the −Z axis direction to pick up or load the mold 10. It may be formed. The holes 113f or grooves are formed on both sides of the mold mounting recess 113a.

The mold loading plate 113e may be detachably coupled to the moving member 113d. Therefore, when the mold 10 is changed, the operator can replace it with the mold loading plate 113e provided with the corresponding mold mounting recess 113a. Therefore, the versatility of the lens and mold transfer system 100 is improved.

FIG. 10 is a diagram for explaining the mold transfer unit 121 shown in FIG.

Referring to FIG. 10, the mold loading unit 113 described above is arranged on one side of the mold loading unit 111, and the transfer table 122 described later is arranged on the other side of the mold loading unit 111.

The mold transfer unit 121 is formed so as to transfer the mold from any one of the mold loading unit 113, the mold carrying unit 111, and the transfer table 122 arranged in one direction to the other one. Therefore, the mold transfer unit 121 includes a pickup device 121c and a push device 121d.

The pickup device 121c is formed so as to transfer the mold 10 from either one of the mold loading portion 113 and the transfer table 122 to the other.

The pickup device 121c picks up the normal mold 10 loaded on the mold loading unit 113 at the initial stage of driving the lens and the mold transfer system 100, and sets a preset position of the transfer table 122 (second position P2 in the drawing). It is configured to be placed in. Here, the preset position may be the vibrating portion 122a. The moving direction of the pickup device 121c (X-axis direction in the drawing) is perpendicular to the moving direction of the mold loading plate 113e (Y-axis direction in the drawing).

The push device 121d is configured to push the mold 10 carried into the first position P1 of the mold carrying portion 111 and transfer it to a preset position of the transfer table 122. For this purpose, the mold carrying unit 111 and the transfer table 122 are connected so that the mold 10 can be slidably moved. Specifically, the first position P1 of the mold carrying-in portion 111 and the preset position of the transfer table 122 may be adjacent to each other to form the same plane.

On the other hand, in the process of moving the mold 10 in the lens molding system, a defective mold 10 may occur. The defective mold 10 may be generated in the mold transfer process of the lens forming machine, or may be generated in the mold transfer process of the lens and the mold transfer system 100.

When the defective mold 10 is ejected from the lens forming machine, the push device 121d pushes the defective mold 10 carried into the first position P1 of the mold carrying portion 111, and the defective mold 10 is pushed into a preset position of the transfer table 122. Transfer to. That is, the push device 121d always pushes the mold 10 carried into the first position P1 of the mold carrying portion 111 regardless of whether or not the mold 10 discharged from the lens forming machine is defective. It is formed to transfer to a preset position on the transfer table 122. The pickup device 121c is formed so as to pick up the defective mold 10 and place it on the mold loading unit 113 when the defective mold 10 is transferred to a preset position of the transfer table 122.

If a defective mold is generated during the slide transfer of the mold 10, the defective mold is transferred to a preset position of the transfer table 122 by the mold transfer loader 123 described later. The pickup device 121c picks up the defective mold 10 transferred to the preset position of the transfer table 122 and places it on the mold loading unit 113.

To summarize the above mechanism, the push device 121d pushes the mold 10 carried into the mold carrying unit 111 to the transfer table 122, and the pickup device 121c is used from either the mold loading unit 113 or the transfer table 122. The mold 10 is transferred to the other side. That is, the pickup device 121c does not pick up the mold 10 carried into the first position P1 of the mold carrying portion 111.

When such a mold transfer unit 121 is applied, it is not necessary to narrow the width of the mold carrying portion 111 even if the size of the mold 10 is reduced, so that the versatility is improved. On the other hand, when the pickup device 121c is configured to pick up the mold 10 carried into the first position P1 of the mold carrying portion 111, when the size of the mold 10 becomes smaller, the mold carrying portion 111 Since the width must be narrowed, the versatility is inferior.

The pickup device 121c and the push device 121d are configured to be movable in the X-axis direction and the Z-axis direction in the drawing.

For movement in the X-axis direction in the drawings, the mold transfer unit 121 includes a slide guide 121a and a slide member 121b.

The slide guide 121a extends in the X-axis direction in the drawing. That is, the slide guide 121a is arranged perpendicular to the extension direction of the mold carrying-in portion 111.

The slide member 121b is provided on the slide guide 121a and is slidable along the slide guide 121a. That is, the slide member 121b is formed so as to be movable in the X-axis direction in the drawing.

The pickup device 121c and the push device 121d are provided on the slide member 121b so as to be able to move up and down.

Specifically, the first elevating guide 121e and the second elevating guide 121g are arranged side by side in the X-axis direction in the drawing on the slide member 121b. Each of the first elevating guide 121e and the second elevating guide 121g extends in the Z-axis direction in the drawing.

The first elevating guide 121e is provided with a first elevating member 121f and is configured to be movable in the Z-axis direction in the drawing. The first elevating member 121f is provided with a pickup device 121c.

The pickup device 121c includes a gripper 121c ′ and a support hook 121c ″ for picking up and transferring the mold 10.

The gripper 121c'is formed so as to grip or angrip the mold 10 by adjusting the distance between them. In the present embodiment, the gripper 121c'provides two arms facing each other, and the two arms grip the mold 10 from both sides.

The support hook 121c ″ is provided on the lower portion of the gripper 121c ′ so that the gripper 121c ′ supports the lower portion of the mold 10 in a state where the mold 10 is gripped. That is, the support hook 121c ″ supports the lower part of the mold 10 when the mold 10 is picked up to prevent the mold 10 from falling.

In the present embodiment, the gripper 121c ′ is composed of two arms, and the lower part of each arm is provided with the support hook 121c ″ that supports the lower part of the mold 10.

The second elevating guide 121g is provided with a second elevating member 121h, and is configured to be movable in the Z-axis direction in the drawing. The second elevating member 121h is provided with a push device 121d.

The push device 121d includes a push member 121d'that comes into contact with one side of the mold 10 and pushes the mold 10. The push member 121d'may be formed in a planar shape, or may be formed in a curved surface shape so as to surround a part of the outer peripheral surface of the mold 10 as shown in the figure.

FIG. 11 is a perspective view showing the transfer table 122 shown in FIG.

As shown in FIG. 11, the transfer table 122 is provided so that the mold 10 is placed and slid to be transferred. In the present embodiment, the case where the transfer table 122 is arranged in the X-axis direction in the drawing between the first position P1 and the fifth position P5 is shown.

The mold 10 is subjected to vibration from the vibrating portion 122a, and then rotated by the rotating plate 122b for centering.

The transfer table 122 may include a plurality of tables. Each of the plurality of tables is provided with a horizontal mounting surface so that the mold can be slid and transferred.

In the present embodiment, the case where the table provided with the vibrating portion 122a and the table provided with the rotating plate 122b are arranged adjacent to each other is shown. In the present embodiment, the second position P2 is the portion where the vibrating portion 122a is arranged, the fourth position P4 is the portion where the rotating plate 122b is arranged, and the third position P3 is the second position P2. This is a portion where the mold 10 between the fourth positions P4 is slid and transferred.

In the present embodiment, it is shown that the mold 10 is pushed from the first position P1 of the mold carrying portion 111 to the second position P2 of the transfer table 122 by the push device 121d. When the mold 10 is pushed to the second position P2 by the push device 121d, vibration is applied to the mold 10 by the vibrating portion 122a arranged at the second position P2.

The mold transfer loader 123 is configured to grip the mold 10 after vibration is applied to the mold 10 and sequentially transfer the mold 10 from the second position P2 on the transfer table 122 to the third position P3 and the fourth position P4. Will be done.

In this way, since the vibrating portion 122a is arranged at the second position P2 on which the mold 10 pushed by the push device 121d is placed, the cycle time for transferring the mold 10 is shortened.

As a matter of course, the vibration unit 122a may not be provided at the second position P2 on which the mold 10 pushed by the push device 121d is placed. In this case, the mold transfer loader 123 grips the mold 10 and transfers it to the vibrating portion 122a, angrips the mold 10 while the vibration is applied, and grips the mold 10 when the vibration is completed. Transfer.

In this embodiment, the third position P3 is located on a table provided with the rotating plate 122b. However, the present invention is not limited to this. For example, the table at the third position P3 may be provided separately from the table provided with the vibrating portion 122a and the table provided with the rotating plate 122b.

The vibrating portion 122a is formed so as to apply vibration to the placed mold 10. For this purpose, a vibration module that applies vibration to the table is provided at the lower part of the table provided with the vibration unit 122a.

The vibrating portion 122a is formed with an air suction hole 122a'that sucks in the surrounding air so that the placed mold 10 is fixed. By fixing the mold 10 through the air suction hole 122a', when vibration is applied to the mold 10 by the vibrating portion 122a, the mold 10 is prevented from being separated from the vibrating portion 122a due to the vibration. Can be done.

When the mold 10 is transferred to the vibrating portion 122a, the vibration module is driven to vibrate the table. Therefore, vibration is transmitted to the placed mold 10, and the molded lens 40 is separated from the lower core 14 and the upper core 15 by the vibration.

A groove 122a ″ into which the support hook 121c ″ of the pickup device 121c is inserted is formed in the vibrating portion 122a. The groove 122a ″ is extended long in consideration of the movement of the support hook 121c ″ during angling of the gripper 121c ″. Grooves 122a ″ may be provided on both sides of the air suction holes 122a ″, respectively.

The table provided with the vibrating portion 122a is arranged at a predetermined interval from the table adjacent to the table. In the drawing, the table provided with the vibrating portion 122a is arranged at a predetermined interval from the table provided with the rotating plate 122b and the mold carrying portion 111.

Due to the above arrangement, even if vibration is generated from the vibrating portion 122a, the vibration is not transmitted to the table provided with the rotating plate 122b adjacent to the vibrating portion 122a and the mold carrying portion 111, and the equipment is damaged or malfunctions due to the vibration. Can be prevented.

The rotary plate 122b is formed so as to rotate the placed mold 10. The rotary plate 122b may be configured to be rotatable 360 degrees. The rotary plate 122b is arranged at a position where it overlaps with the upper core pickup portion 140.

The rotating plate 122b is formed with an air suction hole 122b'that sucks in the surrounding air so that the placed mold 10 is fixed. By fixing the mold 10 through the air suction hole 122b', when the rotary plate 122b rotates, the mold 10 idles on the rotary plate 122b or separates from the rotary plate 122b due to centrifugal force. Can be prevented.

Further, a nitrogen supply hole 122b ″ is formed in the rotating plate 122b. When the mold 10 is centered by the mold centering portion 130, nitrogen is supplied from the nitrogen supply hole 122b ″. The supplied nitrogen causes vibration in the mold 10, and the vibration separates the molded lens 40 from the lower core 14 and the upper core 15.

With the mold 10 centered, the nitrogen supply hole 122b ″ may be located inside the holder 11. For example, as shown in FIG. 15B, the nitrogen supply hole 122b ″ may be located in the gap between the holder 11 and the support plate 12 housed inside the holder 11.

However, the position of the nitrogen supply hole 122b ″ is not limited to this. The nitrogen supply hole 122b ″ may be positioned so as to overlap the support plate 12.

On the sides of the two tables arranged opposite each other so that the mold 10 can be slid and transferred from any one table along the X-axis direction in the drawing without getting caught in the other adjacent table. , A downwardly inclined inclined portion 122'' may be formed.

When the lens forming system is operated for a long time, a slight height difference may occur between adjacent tables due to external factors. If the height of the table increases along the transfer direction of the mold 10, not only the mold 10 but also the molded lens 40 and the lens raw material 30 may be impacted when moving between the tables.

The inclined portion 122 ″ guides the transfer of the mold 10 moving between the tables. That is, the mold 10 is guided by the inclined portion 122 ″ of the table to be transferred, so that the mold 10 is smoothly transferred in a state where the impact is minimized when moving between the tables.

In a normal process, the mold 10 is transferred in one direction (+ X-axis direction in the drawing), but when a defective mold occurs, the mold 10 is transferred in the opposite direction (-X-axis direction in the drawing). Will be done. In consideration of this, it is preferable that the inclined portion 122 ″ is provided on both of the two tables arranged adjacent to each other.

FIG. 12 is a perspective view of the mold transfer loader 123 shown in FIG.

As shown in FIGS. 12 and 19, the mold transfer loader 123 is formed so as to slide and transfer the mold 10 from the transfer table 122 to the mold charging unit 1 (P2 to P6). The operation of the mold transfer loader 123 to transfer the mold 10 is largely the operation of linearly transferring the mold 10 from the transfer table 122 to the height correction unit 124 (P2 to P5) and the operation of linearly transferring the mold 10 to the height correction unit 124. It consists of an operation of rotationally transferring from to the mold loading unit 1 (P5 to P6).

The mold transfer loader 123 is configured to be movable in the X-axis direction in the drawing for linear transfer, and is configured to be rotatable about the Z-axis in the drawing for rotational transfer.

Further, the mold transfer loader 123 is configured to be movable in the Z-axis direction in the drawing. For example, when the mold 20 including the stop ring 26 is used, the mold transfer loader 123 grips the stop ring 26 and moves it in the Z-axis direction in the drawing when disassembling and assembling the stop ring 26.

The mold transfer loader 123 includes a transfer guide 123a, a transfer member 123b, an elevating guide 123c, an elevating member 123d, and a gripping unit 123e.

The transfer guide 123a extends in the X-axis direction in the drawing. That is, the transfer guide 123a is arranged along the extension direction of the transfer table 122.

The transfer member 123b is provided on the transfer guide 123a and is slidable along the transfer guide 123a.

The elevating guide 123c is provided on the transfer member 123b and extends in the Z-axis direction in the drawing.

The elevating member 123d is provided on the elevating guide 123c and can be slidably moved along the elevating guide 123c. The elevating member 123d is provided with a laser sensor 123f including a laser transmitting unit and a laser receiving unit. The laser sensor 123f is configured for centering the mold 10, which will be described later.

The gripping unit 123e is rotatably provided on the elevating member 123d about the Z axis in the drawing, and is configured to grip the mold 10. The gripping unit 123e includes two gripping arms that are arranged so as to face each other and are formed so that the distance between them can be adjusted.

Hereinafter, the centering process of the mold 10 will be described.

13 is a perspective view showing the mold centering portion 130 shown in FIG. 3, and FIG. 14 is a diagram for explaining centering of the mold 10 by the laser sensor 123f and the reflecting plate 137 shown in FIGS. 12 and 13. 15 is a diagram for explaining the centering of the mold 10 by the mold centering unit 130 shown in FIG. 13.

As shown in FIG. 13, the mold centering portion 130 is configured to press and center the mold 10 placed on the rotary plate 122b from both sides.

The mold centering unit 130 includes a moving guide 131, a moving member 132, and a gripping unit 133.

The movement guide 131 extends in the Y-axis direction in the drawing. That is, the movement guide 131 is arranged perpendicular to the extension direction of the transfer table 122.

The moving member 132 is provided on the moving guide 131 and can slide and move along the moving guide 131.

The gripping unit 133 is provided on the moving member 132, and includes a first gripper 133a and a second gripper 133b for gripping the mold 10 from both sides. A reflector 137 is provided on the front surface of the first gripper 133a or the second gripper 133b. In the present embodiment, the case where the reflector 137 is provided on the front surface of the first gripper 133a is shown.

The centering of the mold 10 mainly consists of two stages. First, the rotary plate 122b on which the mold 10 is placed is rotated, and the primary positioning of the mold 10 is roughly performed so that the D-cut portion 11c of the mold 10 is located at a specific position. After that, the mold centering unit 130 grips the mold 10 and performs secondary positioning of the mold 10 with high accuracy.

First, the primary positioning process of the mold 10 will be described.

While the mold 10 is rotated by the rotating plate 122b, the laser sensor 123f and the reflecting plate 137 are arranged on both sides of the mold 10. Therefore, when the mold 10 is transferred to the rotary plate 122b by the mold transfer loader 123, the gripping unit 123e angrips the mold 10, and the elevating member 123d rises to a height corresponding to the reflector plate 137. You may do so.

While the mold 10 is rotated by the rotating plate 122b, the reflector 137 reflects the laser emitted from the laser transmitting portion toward the laser receiving portion at any position of the mold 10. Any of the above positions is a position where the D-cut portion 11c of the mold 10 is located at a specific position.

The laser emitted from the laser transmitting portion is blocked by the round portion 11b of the mold 10 at a position other than any of the above positions. On the other hand, the laser emitted from the laser transmitting portion at any of the above positions is released from the blocking by the D-cut portion 11c of the mold 10. That is, at any of the above positions, the laser emitted from the laser transmitting unit reaches the reflector 137, and the reflected laser is incident on the laser receiving unit.

The optical path that the laser emitted from the laser transmitting unit is reflected by the reflector 137 and received by the laser receiving unit is located eccentrically from the center of the rotating plate 122b. When the mold 10 is located at the center of the rotating plate 122b, the distance from the center of the mold 10 to the D-cut portion 11c is shorter than the distance from the center of the rotating plate 122b to the optical path.

Therefore, when the round portion 11b is arranged on the optical path, the laser emitted from the laser transmitting portion is blocked by the round portion 11b. On the other hand, when the round portion 11b is not arranged on the optical path due to the portion where the D cut portion 11c is formed, the laser irradiated from the laser transmitting portion reaches the reflector 137, and the reflected laser receives the laser. It is incident on the part.

When the incident of the laser to the laser receiving unit is detected, the rotary plate 122b stops the rotation drive. Therefore, the D-cut portion 11c of the mold 10 is in a state of being located at a specific position.

Next, the secondary positioning process of the mold 10 will be described.

When the D-cut portion 11c of the mold 10 is located at a specific position due to the primary positioning of the mold 10, the gripping unit 133 of the mold centering portion 130 grips the mold 10.

Therefore, with the first gripper 133a and the second gripper 133b arranged so as to be away from each other, the moving member 132 moves in the Y-axis direction in the drawing, and the mold is formed between the first gripper 133a and the second gripper 133b. 10 is located, after which the first gripper 133a and the second gripper 133b move closer to each other to grip the mold 10.

A plurality of rollers 136 that roll and contact the D-cut portion 11c are arranged apart from each other in the first gripper 133a, and a plurality of rollers 135 that roll and contact the round portion 11b are separated from each other in the second gripper 133b. Be placed. The plurality of rollers 136 provided in the first gripper 133a have a function of positioning the D-cut portion 11c with high accuracy, and the plurality of rollers 135 provided in the second gripper 133b have a function of supporting the round portion 11b. ..

When the first gripper 133a and the second gripper 133b grip the mold 10, the D-cut portion 11c rolls into contact with the plurality of rollers 136 and is positioned with high accuracy. For example, when the D-cut portion 11c is arranged so as to be slightly inclined with respect to the Y-axis direction in the drawing, the D-cut portion 11c is pressurized by a plurality of rollers 136 and is positioned so as to coincide with the Y-axis direction in the drawing. Be done. At this time, the plurality of rollers 135 support the round portion 11b located on the opposite side of the D-cut portion 11c.

In the present embodiment, the case where the first gripper 133a is provided with two rollers 136 and the second gripper 133b is provided with two rollers 135 is shown. The distance between the two rollers 135 provided in the second gripper 133b is the distance between the two rollers 135 provided in the first gripper 133a so that the two rollers 135 provided in the second gripper 133b can stably support the round portion 11b. It is preferable that the interval is wider than the interval between.

FIG. 16 is a perspective view showing the upper core pickup unit 140 shown in FIG.

Referring to FIG. 16 together with FIG. 3, the upper core pickup unit 140 is arranged at the fourth position P4 so as to overlap the rotating plate 122b. The upper core pickup unit 140 is configured to pick up the upper core 15 for taking out the molded lens 40 in a state where the mold 10 is centered by the mold centering unit 130.

The upper core pickup unit 140 attracts the upper portion of the upper core 15 and lifts it in the Z-axis direction in the drawing. Therefore, the upper core pickup unit 140 includes a drive unit 141, a moving member 142, and a suction unit 143.

The drive unit 141 is arranged vertically, that is, in the Z-axis direction in the drawing, and is formed so as to have a variable length. For example, the drive unit 141 may be an electric cylinder.

The moving member 142 is connected to the drive unit 141 and is formed so as to be movable up and down, that is, in the Z-axis direction in the drawing by the drive of the drive unit 141. In the figure, a structure is shown in which the moving member 142 is arranged on one side of the drive unit 141 and is interlocked with a portion where the length of the drive unit 141 is changed by the connecting member 141a.

Further, the upper core pickup unit 140 may further include a guide rail 146 that guides the vertical movement of the moving member 142.

The guide rails 146 are arranged vertically, that is, long in the Z-axis direction in the drawing. In the figure, the case where the guide rail 146 is provided on the frame 147 is shown.

The moving member 142 is provided on the guide rail 146 and is slidable along the guide rail 146.

The suction unit 143 is provided at the lower part of the moving member 142, and is formed so as to suck the upper core 15. The suction units 143 may be provided in a number corresponding to the upper core 15.

If a large load is applied to the upper core 15 when the suction unit 143 comes into contact with the upper core 15, there is a risk that the molded lens 40 located between the upper core 15 and the lower core 14 will be damaged. Therefore, in order to reduce the load applied to the upper core 15 when the suction unit 143 comes into contact with the upper core 15, the following techniques are applied in the present invention.

First, when the suction unit 143 comes into contact with the upper core 15, the weight of the moving member 142 affects the load applied to the upper core 15. With this in mind, a balance weight 144 formed to pull the moving member 142 upward is connected to the moving member 142 via the wire 149.

Specifically, the wire 149 is connected to the moving member 142 and the balance weight 144, respectively. The wire 149 is wound around at least one fixed pulley 148a and 148b arranged on the moving member 142 and the balance weight 144. That is, the moving member 142 and the balance weight 144 are suspended and arranged by the wire 149. Therefore, the balance weight 144 applies an upward force to the moving member 142.

In the figure, the case where the first fixed pulley 148a is arranged on the moving member 142 and the second fixed pulley 148b is arranged on the balance weight 144 is shown. The first and second fixed pulleys 148a and 148b may be provided on the frame 147 described above.

The weight of the balance weight 144 is preferably larger than the weight of the moving member 142. For example, the weight of the balance weight 144 may be the weight obtained by adding the weight of the suction unit 143 to the weight of the moving member 142, or may be a heavier weight.

The weight of the balance weight 144 may be adjusted so that the load applied to the upper core 15 when the suction unit 143 comes into contact with the upper core 15 becomes close to zero. That is, the suction unit 143 may be brought into contact with the upper core 15 without a load.

As described above, since the balance weight 144 pulls the moving member 142 of the upper core pickup portion 140 upward, the upper core 15 when the suction unit 143 of the upper core pickup portion 140 comes into contact with the upper core 15. The load applied to is reduced. Therefore, there is a low possibility that the molded lens 40 will be damaged when the mold 10 is separated for taking out the molded lens 40.

On the other hand, referring to FIG. 30, a process in which the molded lens 40 is taken out by the molded lens transfer units 151 and 152 and the lens raw material 30 is charged by the lens raw material transfer unit 153 in a state where the suction unit 143 picks up the upper core 15. Is done. However, if the suction unit 143, the lens, and the mold transfer system 100 are shut down in the process, there may be a problem that the upper core 15 falls. In particular, since the upper core 15 picked up by the suction unit 143 is located on the mold 10 in other parts except the upper core 15, if the upper core 15 falls, the entire mold 10 is damaged.

Hereinafter, the mold receiver 145 that minimizes the damage caused by the fall of the upper core 15 when the equipment is shut down with the upper core 15 separated will be described.

17A and 17B are diagrams for explaining the operation of the mold receiver 145 shown in FIG. 17A shows a state in which the suction unit 143 is lowered to pick up the upper core 15, and FIG. 17B shows a state in which the suction unit 143 picks up the upper core 15 and is raised.

As shown in FIGS. 17A and 17B, the mold receiver 145 is configured to rotate in conjunction with the vertical movement of the moving member 142. As shown in FIG. 17B, at the maximum ascending point of the moving member 142, at least a part of the mold receiver 145 is located at the first position between the suction unit 143 and the transfer table 122. On the contrary, as shown in FIG. 17A, at the maximum lowering point of the moving member 142, at least a part of the mold receiver 145 is located at a second position away from the suction unit 143 and the transfer table 122.

That is, at least a part of the mold receiver 145 is formed so as to move between the first position located below the suction unit 143 and the second position away from the lower side of the suction unit 143.

Therefore, when the moving member 142 is lowered, the mold receiver 145 rotates from the first position to the second position, and the suction unit 143 is arranged so as to face the upper core 15. At the maximum descent point of the moving member 142, the suction unit 143 picks up the upper core 15.

Further, when the moving member 142 rises, the mold receiver 145 rotates from the second position to the first position, and the suction unit 143 is arranged so as to face the mold receiver 145. In the state where the upper core 15 is sucked by the suction unit 143, the mold receiver 145 is arranged below the upper core 15. Therefore, even if the suction unit 143, the lens, and the mold transfer system 100 are shut down and the upper core 15 is dropped, the upper core 15 is placed on the mold receiver 145.

The mold receiver 145 includes a main body 145a and a hinge portion 145b having a hinge shaft to which the main body 145a is hinged. In the present embodiment, the case where the main body 145a is hinged to the fixing member 140a adjacent to the moving member 142 is shown.

The main body 145a includes an extension portion 145c, a receiving portion 145d, and a protruding portion 145e.

The extension portion 145c extends downward from the hinge portion 145b. As shown in FIG. 17B, the extension portion 145c is arranged at the first position so as to extend in the Z-axis direction in the drawing.

The receiving portion 145d is attached to the extension portion 145c and is arranged at the first position so as to face the suction unit 143. As shown in FIG. 17B, the receiving portion 145d is arranged horizontally at the first position. The receiving portion 145d may be formed with a recess portion 145d'in which the dropped upper core is housed.

The protruding portion 145e protrudes in parallel with the hinge axis of the hinge portion 145b. As shown in FIGS. 17A and 17B, the protrusion 145e at the second position is arranged below the protrusion 145e at the first position.

The moving member 142 is provided with a push portion 142a, and the push portion 142a is arranged so as to overlap the protruding portion 145e in the vertical direction.

When the moving member 142 rises, the push portion 142a pushes the protruding portion 145e, and the push causes the main body 145a to rotate in one direction around the hinge portion 145b. Therefore, the receiving portion 145d moves from the second position to the first position. The protrusion 145e is supported by the push portion 142a at the first position, and the rotation of the main body 145a is restricted.

When the moving member 142 descends, the push portion 142a moves away from the protruding portion 145e, whereby the main body 145a rotates about the hinge portion 145b in the other direction opposite to the one direction. Therefore, the receiving portion 145d moves from the first position to the second position.

When the push portion 142a moves away from the protruding portion 145e, the main body 145a may be moved from the first position to the second position by gravity.

Alternatively, as shown in the figure, when the push portion 142a moves away from the protruding portion 145e, the main body 145a may be moved from the first position to the second position by the elastic member 145f that urges the main body 145a. ..

In the present embodiment, the elastic member 145f is connected to the fixing member 140a in a state of being pulled by the main body 145a, and the main body 145a is pulled toward the fixing member 140a. Here, the elastic member 145f is made of a spring.

However, the present invention is not limited to this. For example, the elastic member 145f may consist of a spring hinge provided on the hinge portion 145b.

FIG. 18 is a perspective view showing the height correction unit 124 shown in FIG.

The mold 10 carried into the mold carrying unit 111 is transferred to the mold charging unit 1 of the lens forming machine through the slide transfer process on the transfer table 122, and is transferred to the mold charging unit 1 of the lens forming machine by the transfer table 122 and the mold charging unit 1. Differences in height may occur.

For example, as in the present embodiment, the surface on which the mold 10 is placed in the mold insertion unit 1 may be higher than the surface on which the mold 10 is placed in the transfer table 122. In consideration of this, the height correction unit 124 configured to be movable up and down, that is, in the Z-axis direction in the drawing so as to compensate for the difference in height between the transfer table 122 and the mold insertion unit 1. Is placed.

When the mold 10 is placed on the height correction unit 124, the height correction unit 124 rises to a height corresponding to the mold insertion unit 1. In this way, the height correction unit 124 rises to match the height with the mold insertion unit 1, enabling smooth slide transfer of the mold 10 from the height correction unit 124 to the mold insertion unit 1. Become.

After that, when the mold 10 is slid and transferred to the mold charging unit 1, the height correction unit 124 descends to a height corresponding to the transfer table 122. That is, the height is lowered so that the next mold 10 to be transferred to the transfer table 122 is slide-transferred to the height correction unit 124.

By adjusting the height by the height correction unit 124 described above, the mold 10 can be sequentially transferred to the transfer table 122, the height correction unit 124, and the mold insertion unit 1 by a slide method.

Specifically, the mold 10 placed on the transfer table 122 is linearly transferred from the transfer table 122 to the height correction unit 124 by the mold transfer loader 123.

After that, the height correction unit 124 rises to a height corresponding to the mold insertion unit 1. For example, the height correction unit 124 may be arranged at the same height as the mold insertion unit 1, or may be arranged at a position slightly higher than the mold insertion unit 1.

When the height correction unit 124 rises, the gripping unit 123e of the mold transfer loader 123 may be in a state of gripping the mold 10 mounted on the height correction unit 124. Even when the gripping unit 123e is in a state where the mold 10 is gripped, if the external force applied to the mold 10 is larger than the gripping force of the gripping unit 123e, the mold 10 may move relative to the gripping unit 123e. can.

When the height correction unit 124 rises while the gripping unit 123e grips the mold 10 placed on the height correction unit 124, the mold 10 moves relative to the gripping unit 123e. That is, the mold 10 moves upward in the gripping unit 123e in response to the rise of the height correction unit 124.

The mold 10 placed on the height correction unit 124 is rotationally transferred from the height correction unit 124 to the mold charging unit 1 by the mold transfer loader 123.

Specifically, when the height correction unit 124 rises, the mold transfer loader 123 rotates so as to slide and transfer the mold 10 mounted on the height correction unit 124 to the mold loading unit 1. In the present embodiment, the mold charging unit 1 is arranged perpendicular to the transfer table 122, and the mold transfer loader 123 is rotated 90 degrees by the height correction unit 124 to rotate the mold 10 into the mold charging unit 1. Transfer to.

When the mold 10 is transferred to the mold charging unit 1, the height correction unit 124 is lowered to a height corresponding to the transfer table 122. For example, the height correction unit 124 may be arranged at the same height as the transfer table 122, or may be arranged at a position slightly lower than the transfer table 122.

In the figure, a case where the height correction unit 124 includes a support member 124a, a guide member 124b, a moving member 124c, and a mounting member 124d is shown.

The support member 124a is arranged vertically, that is, in the Z-axis direction in the drawing.

The guide member 124b is attached to the support member 124a and includes a guide rail extending in the Z-axis direction in the drawing.

The moving member 124c is coupled to the guide member 124b and is movable in the Z-axis direction along the guide rail. A drive module that supplies a driving force so as to be able to move relative to the guide member 124b is mounted or connected to the guide member 124b or the moving member 124c.

The mounting member 124d is coupled to the moving member 124b and is horizontally arranged so that the mold 10 can be mounted. The upper surface of the mounting member 124d corresponds to the mounting surface of the height correction unit 124 described above.

FIG. 19 is a diagram for explaining the gripping force of the mold transfer loader 123 at each position of the mold 10 on the transfer table 122 shown in FIG.

Referring to FIG. 19, the mold transfer loader 123 slides and transfers the mold 10 from the transfer table 122 to the mold charging unit 1. In this process, the gripping unit 123e of the mold transfer loader 123 can adjust the gripping force for gripping the mold 10 according to the position of the mold 10.

For this purpose, the gripping unit 123e may be provided with an electropneumatic regulator (not shown) that continuously and highly accurately controls the vacuum pressure applied to the gripping unit 123e using an electric signal. The control unit can adjust the gripping force of the gripping unit 123e by controlling the electric signal supplied to the electropneumatic regulator.

Taking the transfer process of the mold 20 including the stop ring 26 as an example, the gripping unit 123e grips the mold 20 by the vibrating portion 122a and linearly transfers the mold 20 to the rotating plate 122b, and the rotating plate 122b disassembles the stop ring 26. And assembling, the mold 20 is gripped again by the rotary plate 122b and linearly transferred to the height correction unit 124, and the mold 20 is rotationally transferred from the height correction unit 124 to the mold charging unit 1. The gripping force with which the gripping unit 123e grips the mold 20 may be different depending on the position where the mold 20 is transferred.

For example, the gripping force when the second position P2, that is, the gripping unit 123e grips the mold 20 with the vibrating portion 122a, is set to 20N.

The gripping force when the third position P3, that is, the gripping unit 123e slides and transfers the mold 20 on the transfer table 122, is set to 5N.

When the mold 20 includes the stop ring 26, the stop ring 26 is disassembled and assembled by the rotating plate 122b. When disassembling and assembling the stop ring 26, the stop ring 26 is picked up from the transfer table 122. Therefore, in order to prevent the stop ring 26 from falling, the gripping unit 123e must grip the stop ring 26 with a strong force. In consideration of this, the gripping force at the fourth position P4, that is, when the gripping unit 123e disassembles and assembles the stop ring 26 on the rotating plate 122b, is set to 40N.

The gripping force when the fifth position P5, that is, the gripping unit 123e grips the mold 20 with the height correction unit 124, is set to 10N. After that, the gripping force when the sixth position P6, that is, the gripping unit 123e slides and transfers the mold 20 to the mold charging unit 1, is set to 5N.

As described above, the gripping force of the gripping unit 123e is set to the maximum when disassembling and assembling the stop ring 26, and is set to the minimum when the mold 20 is slid and transferred. The gripping force of the gripping unit 123e when the height correction unit 124 is raised may be set to be larger than the gripping force of the gripping unit 123e when the height correction unit 124 is transferred to the mold charging unit 1.

20 is a perspective view showing the lens raw material pickup unit 160 shown in FIG. 3, and FIG. 21 is a perspective view showing the lens raw material temporary loading unit 170 shown in FIG.

Referring to FIGS. 20 and 21, the lens raw material pickup unit 160 is formed so as to pick up the lens raw material loaded on the lens raw material tray 160d and transfer it to the lens raw material temporary loading unit 170.

The lens raw material pickup unit 160 includes a first guide member 161, a first moving member 162, a second guide member 163, a second moving member 164, a tray suction unit 165, and a lens raw material suction unit 166.

The first guide member 161 extends in the X-axis direction in the drawing.

The first moving member 162 is provided on the first guide member 161 and can be slidably moved along the first guide member 161.

The second guide member 163 is provided on the first moving member 162 and extends in the Y-axis direction in the drawing.

The second moving member 164 is provided on the second guide member 163 and can be slidably moved along the second guide member 163. With the above structure, the second moving member 164 can be moved in the X-axis direction and the Y-axis direction in the drawing. A tray suction unit 165 and a lens raw material suction unit 166 are mounted on the second moving member 164.

The tray suction unit 165 is formed so as to suck and lift the lens raw material tray 160d. Therefore, the suction unit 165a is extended downward in the tray suction unit 165 so that the lens raw material tray 160d is sucked and picked up from above.

In order to stably transfer the lens raw material tray 160d, a plurality of tray suction units 165 may be provided and arranged apart from each other. For example, the tray suction unit 165 may suck the upper end portion and the lower end portion of the lens raw material tray 160d.

In this embodiment, the tray suction unit 165 is configured so as not to move in the Z direction in the drawing. The lens raw material tray supply unit 160a, which will be described later, raises the lens raw material tray 160d to a preset position so that the tray suction unit 165 can suck the lens raw material tray 160d, and lowers when the lens raw material tray 160d is sucked. It may be formed as follows. Further, the lens raw material tray standby unit 160b, which will be described later, raises the lens raw material tray 160d to a preset position so that the lens raw material tray 160d on which the tray suction unit 165 is sucked can be placed, and the lens raw material tray 160d is raised. It may be formed so as to descend when placed.

Of course, the present invention is not limited to this. The lens raw material tray supply unit 160a and the lens raw material tray standby unit 160b may be fixed, and the tray suction unit 165 may be formed so as to be movable in the Z direction in the drawing.

The lens raw material adsorption unit 166 is formed so as to adsorb the lens raw material 30 from the lens raw material tray 160d placed on the lens raw material tray standby portion 160b. The lens raw material adsorption unit 166 is formed so as to be movable in the Z-axis direction in the drawing. Therefore, the lens raw material adsorption unit 166 includes a guide member 166a extending in the Z-axis direction in the drawing, and a moving member 166b provided on the guide member 166a and sliding along the guide member 166a. A suction unit 166c is extended downward to the moving member 166b so that the lens raw material 30 is sucked and picked up from above.

The lens raw material adsorption unit 166 may be arranged between the tray adsorption units 165 which are arranged apart from each other.

The inner space limited by the first guide member 161 and the second guide member 163 is provided with a lens raw material tray supply unit 160a, a lens raw material tray standby unit 160b, and a lens raw material tray discharge unit 160c.

Here, the lens raw material tray supply unit 160a is a portion where the lens raw material tray 160d on which the lens raw material 30 is loaded is stored. The lens raw material tray 160d is loaded with the lens raw materials 30 arranged one by one. In the lens raw material tray 160d, recesses 160f accommodating at least a part of the lens raw material 30 may be formed in a matrix shape. The lens raw material tray 160d may be loaded on the lens raw material tray supply unit 160a in a laminated manner.

A cover 160a'may be provided on the lens raw material tray supply unit 160a so as to be openable and closable. The cover 160a'is normally closed so as to cover the opening of the lens raw material tray supply unit 160a, and when a control signal is supplied, the tray suction unit 165 sucks the lens raw material tray 160d and the lens raw material. It is opened so that it can be transferred to the tray standby unit 160b. After that, the cover 160a'is closed again to prevent foreign matter such as dust from entering the lens raw material tray supply unit 160a.

The lens raw material tray standby unit 160b is a portion where the lens raw material tray 160d transferred by the tray suction unit 165 is temporarily stored. The lens raw material tray standby unit 160b stores only one lens raw material tray 160d. The lens raw material adsorption unit 166 is formed so as to adsorb the lens raw material 30 from the lens raw material tray 160d placed on the lens raw material tray standby portion 160b.

When all the lens raw materials 30 are carried out from the lens raw material tray 160d placed on the lens raw material tray standby unit 160b, the tray suction unit 165 sucks the lens raw material tray 160d and transfers it to the lens raw material tray discharge unit 160c. ..

The lens raw material tray discharge unit 160c is a portion in which the lens raw material tray 160d in which all the lens raw materials 30 are picked up by the lens raw material adsorption unit 166 is stored. The lens raw material tray 160d may be loaded on the lens raw material tray discharge unit 160c in a laminated form.

As shown in FIG. 21, the lens raw material temporary loading unit 170 is formed so that the lens raw material 30 is temporarily loaded before being picked up by the lens raw material transfer unit 153.

The lens raw material temporary loading unit 170 includes a guide member 171, a moving member 172, a temporary loading unit 173, and a centering unit 174.

The guide member 171 extends in the X-axis direction in the drawing, and the moving member 172 is provided on the guide member 171 and slides along the guide member 171.

The temporary loading unit 173 includes a body 173a, a loading section 173b, a first guide section 173c and a second guide section 173d.

The body 173a is provided on the moving member 172 and is movable in the X-axis direction in the drawing.

The loading portion 173b is provided on the body 173a and is formed so as to load the lens raw material 30. The loading portion 173b is formed in a planar shape when the lens raw material 30 is formed in a plate shape, and is formed in a concave shape when the lens raw material 30 is formed in a spherical shape.

Due to the movement of the body 173a, the loading unit 173b reciprocates linearly between the first position and the second position. The loading unit 173b overlaps with the lens raw material adsorption unit 166 at the first position and overlaps with the lens raw material transfer unit 153 at the second position.

The loading portion 173b may be provided with an air suction hole 173e for sucking the surrounding air. The air suction hole 173e attracts the lens raw material 30 placed on the loading portion 173b to prevent detachment.

The first guide portion 173c and the second guide portion 173d are arranged so as to project along two adjacent sides of the loading portion 173b. In the present embodiment, the first guide portion 173c and the second guide portion 173d are arranged vertically. The first guide portion 173c and the second guide portion 173d support the lens raw material 30 from the lateral direction when the lens raw material 30 is centered.

The centering unit 174 includes a body 174a, a first push portion 174b and a second push portion 174c.

The body 174a is fixed at a preset position. When the loading portion 173b is located at the second position where it overlaps with the lens raw material transfer portion 153, the body 174a is arranged so as to overlap a part of the body 173a.

The first and second push portions 174b and 174c are arranged so as to face the first and second guide portions 173c and 173d, respectively, and are formed so as to be movable relative to each of the first and second guide portions 173c and 173d. Will be done. Therefore, when the lens raw material 30 is placed on the loading portion 173b and pushed by the first and second push portions 174b and 174c, the two sides of the lens raw material 30 are moved to the first and second guide portions 173c. , 173d in close contact. That is, the lens raw material 30 is centered.

At the second position, the loading unit 173b is arranged below the suction unit 153a of the lens raw material transfer unit 153. Therefore, the lens raw material transfer unit 153 can pick up the lens raw material 30 centered at the second position and place it at a fixed position of the lower core 14.

When the lens raw material 30 is not centered, the lens raw material temporary loading unit 170 may have only the function of transferring the lens raw material 30 from the first position to the second position.

22 and 23 are perspective views of the molded lens transfer units 151 and 152, the air suction unit 156, and the lens raw material transfer unit 153 shown in FIG. 3, as viewed from above and below, respectively.

As shown in FIGS. 22 and 23, the molded lens transfer portions 151 and 152 are formed so as to pick up and transfer the molded lens 40 exposed to the outside by the pickup of the upper core 15.

At the time of picking up the upper core 15, the molded lens 40 is generally placed on the lower core 14, but in rare cases, it may be attached to the upper core 15. Before transferring the mold 10 to the upper core pickup unit 140, vibration is applied to the mold 10 from the vibrating unit 122a as described above, or nitrogen is supplied to the mold 10 from the nitrogen supply hole 122b''. Thereby, the molded lens 40 can be easily separated from the upper core 15.

In the figure, in consideration of the possibility that the molded lens 40 adheres to the upper core 15, the molded lens transfer portions 151 and 152 are formed so as to attract the molded lens 40 mounted on the lower core 14. The case where it is composed of the 1st molded lens transfer module 151 and the 2nd molded lens transfer module 152 formed so as to attract the molded lens 40 adhering to the upper core 15 is shown.

The air suction unit 156 is arranged so as to cover the lower core 14 of the mold 10 after the molded lens 40 is picked up by the molded lens transfer units 151 and 152, and is formed so as to suck air. That is, the air suction portion 156 is formed so as to clean the lower core 14 portion of the mold 10 before the lens raw material 30 is transferred.

The lens raw material transfer unit 153 is formed so that the lens raw material 30 is placed on the lower core 14 of the mold 10 after the mold 10 is cleaned by the air suction unit 156.

The molded lens transfer units 151 and 152, the air suction unit 156, and the lens raw material transfer unit 153 move together in the Y-axis direction in the drawing.

Each of the first molded lens transfer module 151, the second molded lens transfer module 152, and the lens raw material transfer unit 153 is arranged in the Y-axis direction in the drawing, and by moving in the Y-axis direction, the upper core is sequentially placed at the fourth position P4. It is arranged so as to overlap the 15 and the lower core 14. At this time, the lower core 14 is arranged below the first molded lens transfer module 151, and the upper core 15 is arranged above the second molded lens transfer module 152.

The air suction unit 156 is formed so as to clean the mold 10 after the molded lens 40 is adsorbed and before the lens raw material 30 is transferred by the lens raw material transfer unit 153.

Since the molded lens 40 is often mounted on the lower core 14, it is often attracted by the first molded lens transfer module 151.

Further, the suction unit 152a of the second molded lens transfer module 152 is arranged upward to take out the molded lens 40 attached to the upper core 15, and the air suction unit 156 is arranged downward to clean the lower core 14 portion. Since they are arranged, there is no interference in operation even if they are arranged so as to overlap each other.

In consideration of such a process and mechanism, the air suction unit 156 is arranged between the first molded lens transfer module 151 and the lens raw material transfer module 153, and is vertically and vertically connected to the second molded lens transfer module 152, that is, Z in the drawing. They may be arranged so as to overlap in the axial direction. In the present embodiment, the case where the air suction unit 156 is arranged below the second molded lens transfer module 152 is shown.

When the molded lens 40 is attracted by the first molded lens transfer module 151, the second molded lens transfer module 152 is not driven, and the air suction unit 156 is driven to clean the mold 10. That is, when the molded lens 40 mounted on the lower core 14 is taken out, the mold 10 is immediately cleaned because the molded lens 40 is not attached to the upper core 15.

On the other hand, if the molded lens 40 is not attracted by the first molded lens transfer module 151, the molded lens 40 is attracted by the second molded lens transfer module 152, the air suction portion 156 is driven, and the mold 10 is cleaned. .. At this time, the air suction unit 156 may be driven after the molded lens 40 is adsorbed by the second molded lens transfer module 152, or may be driven at the same time.

The air suction unit 156 may be formed so as to be relatively movable up and down with respect to the second molded lens transfer module 152. For example, when the air suction unit 156 moves in the Y-axis direction in the drawing and is arranged so as to overlap the lower core 14, it descends, that is, moves in the −Z axis direction in the drawing and further on the lower core 14. It can be placed in close proximity.

The lens raw material transfer unit 153 is formed so as to pick up the lens raw material 30 before moving in the Y-axis direction in the drawing together with the molded lens transfer units 151 and 152. In the present embodiment, the lens raw material transfer unit 153 is formed so as to pick up the lens raw material 30 loaded on the lens raw material temporary loading unit 170 when the lens raw material temporary loading unit 170 moves below the lens raw material transfer unit 153. The lens.

The first molded lens transfer module 151, the second molded lens transfer module 152, the air suction unit 156, and the lens raw material transfer unit 153 each have a lower core 14 and an upper core mounted on the rotating plate 122b at the fourth position P4. It is arranged between the upper cores 15 lifted by the pickup unit 140.

For the movement, the guide rail 154 is arranged so as to extend in the Y-axis direction in the drawing. The guide rail 154 is provided with a moving member 155 formed so as to be movable in the Y-axis direction along the guide rail 154.

A first molded lens transfer module 151, a second molded lens transfer module 152, an air suction unit 156, and a lens raw material transfer unit 153 are mounted on the moving member 155. According to the above structure, when the moving member 155 moves along the guide rail 154, the first molded lens transfer module 151, the second molded lens transfer module 152, and the lens raw material transfer unit 153 move together.

Specifically, the first molded lens transfer module 151 is arranged so as to overlap the lower core 14 at the fourth position P4, and then the moving member 155 moves in the −Y axis direction in the drawing to form the second molded lens transfer module. The 152 and the air suction unit 156 are arranged so as to overlap the upper core 15 and the lower core 14 at the fourth position P4, and then the moving member 155 moves in the −Y axis direction in the drawing, and the lens raw material transfer unit 153 is the fourth. It is arranged so as to overlap the lower core 14 at the position P4.

The moving member 155 may be detachably coupled to the guide rail 154. Therefore, when the mold 10 is replaced, the moving member 155 including the first molded lens transfer module 151, the second molded lens transfer module 152, the air suction unit 156, and the lens raw material transfer unit 153 corresponding to the mold 10 is guided. It can be provided on the rail 154. Therefore, the versatility of the lens and mold transfer system 100 is improved.

In the first molded lens transfer module 151, a plurality of suction units 151a for adsorbing the molded lens mounted on the lower core 14 are arranged so as to face downward, and in the second molded lens transfer module 152, a plurality of suction units 151a are arranged so as to face downward. The suction unit 152a for sucking the molded lens attached to the upper core 15 is arranged so as to face upward.

At least one of the first and second molded lens transfer modules 151 and 152 may be formed so as to be movable in the Z-axis direction in the drawing.

In the figure, the case where the first molded lens transfer module 151 is provided with a guide member 151b and a moving member 151c and is movable downward, that is, in the −Z axis direction in the drawing is shown. The guide member 151b is attached to the moving member 155 and extends in the Z-axis direction in the drawing. The moving member 151c is provided on the guide member 151b and is movable along the guide member 151b in the Z-axis direction in the drawing.

In the present embodiment, the second molded lens transfer module 152 is configured so as not to move in the Z-axis direction in the drawing. In this way, instead of the second molded lens transfer module 152 having a structure fixed in the Z-axis direction in the drawing, the suction unit 143 of the upper core pickup unit 140 moves in the Z-axis direction in the drawing to move the upper core 15. It is configured to be transferred to the second molded lens transfer module 152. However, the present invention is not limited to this. Needless to say, the second molded lens transfer module 152 may also have a structure movable in the Z-axis direction in the drawing, like the first molded lens transfer module 151.

A suction unit 153a for sucking the lens raw material is arranged in the lens raw material transfer unit 153 so as to face downward. The lens raw material transfer unit 153 is formed so as to be movable in the Z-axis direction in the drawing. In the figure, a case where the lens raw material transfer unit 153 is provided with a guide member 153b and a moving member 153c and is movable downward, that is, in the −Z axis direction in the drawing is shown. The guide member 153b is attached to the moving member 155 and extends in the Z-axis direction in the drawing. The moving member 153c is provided on the guide member 153b and is movable along the guide member 153b in the Z-axis direction in the drawing.

As described above, since the lens raw material transfer unit 153 moves to the fourth position P4 together with the molded lens transfer units 151 and 152 in a state where the lens raw material 30 is picked up, the lens raw material 30 is immediately charged after the molded lens 40 is taken out. be able to. Therefore, the cycle time of the lens and the mold transfer system 100 can be shortened, and the molding speed of the lens can be improved.

Further, the molded lens transfer units 151 and 152 attract the first molded lens transfer module 151 that attracts the molded lens 40 mounted on the lower core 14, and the second molded lens that attracts the molded lens 40 attached to the upper core 15. Since the transfer module 152 is provided, when the molded lens 40 adheres to the upper core 15, the molded lens 40 can be taken out by the second molded lens transfer module 152.

When the mold 10 includes a single cavity 11a as in the present embodiment, the second molded lens transfer module 152 and the lens raw material transfer unit 153 include a single suction unit 152a, 153a.

However, as shown in FIG. 23, the first molded lens transfer module 151 includes a plurality of suction units 151a. Hereinafter, a plurality of suction units 151a provided in the first molded lens transfer module 151 will be described more specifically.

FIG. 24 is a diagram for explaining that the molded lens 40 on the lower core 14 is attracted by the first molded lens transfer module 151 shown in FIG. 23, and FIG. 25 is a diagram for explaining that the plurality of suction units shown in FIG. 24 are attracted. It is a conceptual diagram of 151a.

Referring to FIGS. 24 and 25 together with FIG. 23, the molded lens 40 is generally mounted on the lower core 14 when the upper core 15 is picked up. However, the molded lens 40 may be weakly attached to the upper core 15 and separated from the upper core 15, or the molded lens 40 may move slightly and move out of the fixed position due to a slight shaking generated momentarily when the upper core 15 is separated. ..

Therefore, the first molded lens transfer module 151 includes a plurality of suction units 151a so that the molded lens 40 can be taken out at any position on the lower core 14.

The plurality of suction units 151a are arranged so as to cover an area larger than the molded lens 40 and smaller than the lower core 14 so that the molded lens 40 mounted on the lower core 14 can be attracted. In the present embodiment, a case where a plurality of suction units 151a are arranged in a matrix of rows and columns so as to overlap in the lower core 14 is shown.

A plurality of suction units 151a are connected in parallel to one vacuum generator 151c. Each of the plurality of suction units 151a is provided with valves 151b ′ and 151b ″. The plurality of suction units 151a are configured such that the valve 151b ′ is opened when the molded lens 40 is attracted, and the valve 151b ″ is closed when the molded lens 40 is not attracted.

As the valves 151b ′ and 151b ″, known suction assist valves may be used.

It is also possible to detect whether or not the molded lens 40 is adsorbed based on the pressure applied to the vacuum generator 151c when the valves 151b ′ and 151b ″ are opened and closed. For example, when the molded lens 40 is not attracted by the plurality of suction units 151a, both of the valves 151b ″ are closed. The control unit detects that the molded lens 40 is not adsorbed based on the pressure applied to the vacuum generator 151c. In this case, the control unit makes the molded lens 40 attached to the upper core 15 taken out by the second molded lens transfer module 152.

On the other hand, when the molded lens 40 is attracted by at least one of the plurality of suction units 151a, at least one bulb 151b'opens. The control unit detects that the molded lens 40 is adsorbed based on the pressure applied to the vacuum generator 151c. In this case, the control unit prevents the second molded lens transfer module 152 from being driven.

FIG. 26 is a perspective view showing the molded lens loading portion 180 shown in FIG. 27 is a perspective view showing the molded lens temporary loading unit 191 shown in FIG. 3, and FIG. 28 shows the molded lens 40 on the molded lens temporary loading unit 191 being attracted by the first suction unit 182 shown in FIG. 26. It is a figure for demonstrating that. FIG. 29 is a perspective view showing the molded lens centering portion 192 shown in FIG.

As shown in FIGS. 26 to 29, the molded lens loading unit 180 includes a molded lens loading tray support unit 187, and a first suction unit 182 and a second suction unit 183 formed so as to be movable in three axes.

The molded lens loading tray support portion 187 is provided so that a plurality of molded lens trays 188 can be mounted. In the present embodiment, a case where a plurality of molded lens trays 188 are arranged in the X-axis direction and the Y-axis direction in the drawing is shown on the molded lens loading tray support portion 187.

The first suction unit 182 is formed so as to suck the molded lens 40 mounted on the molded lens temporary loading section 191 and transfer it to the molded lens centering section 192.

The second suction unit 183 is formed so as to suck the molded lens 40 placed on the molded lens centering portion 192 and load it on the molded lens loading tray 188.

Therefore, the first suction unit 182 and the second suction unit 183 are movably formed on the upper side of the molded lens centering portion 192, specifically, at a position overlapping the mounting portion 192a.

The molded lens loading unit 180 includes a first guide member 181a, a first moving member 181b, a second guide member 181c, and a second moving member 181d.

The first guide member 181a extends in the X-axis direction in the drawing.

The first moving member 181b is provided on the first guide member 181a and is slidable along the first guide member 181a.

The second guide member 181c is provided on the first moving member 181b and extends in the Y-axis direction in the drawing.

The second moving member 181d is provided on the second guide member 181c and is slidable along the second guide member 181c. With the above structure, the second moving member 181d can be moved in the X-axis direction and the Y-axis direction in the drawing.

The first suction unit 182 and the second suction unit 183 are provided on the second moving member 181d so as to be movable up and down, respectively.

Therefore, the first elevating guide 181e and the second elevating guide 181g are arranged side by side in the Y-axis direction in the drawing on the second moving member 181d. Each of the first elevating guide 181e and the second elevating guide 181g extends in the Z-axis direction in the drawing.

The first elevating guide 181e is provided with a first elevating member 181f and is configured to be movable in the Z-axis direction in the drawing. The first elevating member 181f is provided with a first suction unit 182.

The second elevating guide 181g is provided with a second elevating member 181h, and is configured to be movable in the Z-axis direction in the drawing. The second elevating member 181h is provided with a second suction unit 183.

When the molded lens 40 attached to the upper core 15 is sucked by the suction unit 152a of the second molded lens transfer module 152, the second suction unit 183 moves to the overlapping position on the suction unit 152a to move the molded lens 40. It is picked up and the molded lens 40 is loaded on the molded lens loading tray 188.

On the other hand, when the molded lens 40 mounted on the lower core 14 is attracted by the plurality of suction units 151a of the first molded lens transfer module 151, the molded lens 40 is loaded on the molded lens loading tray 188. Requires centering.

Hereinafter, it will be specifically described.

The molded lens temporary loading unit 191 is formed so that the molded lens 40 picked up by the plurality of suction units 151a of the first molded lens transfer module 151 is temporarily loaded.

The molded lens temporary loading portion 191 is formed so as to be movable up and down, that is, in the Z-axis direction in the drawing.

The molded lens temporary loading unit 191 includes a guide member 191a, a moving member 191b, and a loading member 191c.

The guide member 191a extends in the Z-axis direction in the drawing, and the moving member 191b is provided on the guide member 191a and is slidable along the guide member 191a. In the figure, the guide bar 191a'is extended in the Z-axis direction to the guide member 191a, and the moving member 191b is provided so as to be movable along the guide bar 191a'.

A drive module (not shown) formed so as to move the moving member 191b in the Z-axis direction may be mounted or connected to the guide member 191a or the moving member 191b.

The loading member 191c is coupled to the moving member 191b and moves together with the moving member 191b. The loading member 191c is provided with a mounting surface 191c'on which the molded lens 40 is mounted.

As described above, the plurality of suction units 151a are formed so as to pick up the molded lens 40 located at an arbitrary position on the lower core 14. The mounting surface 191c'has a larger area than the lower core 14 so that the molded lens 40 picked up from the lower core 14 can be mounted on the mounting surface 191c'. Here, the fact that the mounting surface 191c'has a larger area than the lower core 14 means that, as shown in FIG. 28, when the lower core 14 is placed on the mounting surface 191c', the mounting surface 191c'is larger. It means that it is larger than the lower core 14.

The first suction unit 182 is formed so as to suck the molded lens 40 mounted on the mounting surface 191c'and transfer it to the molded lens centering portion 192.

The first suction unit 182 includes a plurality of suction devices 182a so that the molded lens 40 can be picked up at any position on the mounting surface 191c'.

The plurality of suction devices 182a are arranged so as to cover an area larger than the molded lens 40 and smaller than the mounting surface 191c'so that the molded lens 40 mounted on the mounting surface 191c'can be attracted. .. In the present embodiment, a case where a plurality of suction devices 182a are arranged in a row-column matrix so as to overlap in the mounting surface 191c'is shown.

The structure of the plurality of suction devices 182a is similar to that of the plurality of suction units 151a described with reference to FIG. 25. Therefore, the description thereof will be omitted.

The molded lens centering portion 192 is formed so as to center the transferred molded lens 40. The molded lens centering unit 192 is arranged between the molded lens temporary loading unit 191 and the molded lens loading unit 180. According to the above arrangement, since the centering is performed in the process of moving the molded lens 40 from the molded lens temporary loading section 191 to the molded lens loading section 180, the time delay due to the centering can be minimized.

The molded lens centering portion 192 includes a mounting portion 192a, a first slider 192c, and a second slider 192d.

The mounting portion 192a is formed so that the molded lens 40 is mounted, and has a support wall 192b on one side.

The first slider 192c is formed so as to slide on the mounting portion 192a, and has a first pressure surface 192c'opposing the support wall 192b and a second pressure surface 192c' perpendicular to the first pressure surface 192c'. Be prepared.

The second slider 192d is formed so as to slide and move on the mounting portion 192a, and is arranged so as to face the second pressure surface 192c ″.

Therefore, the molded lens 40 mounted on the mounting portion 192a is positioned, that is, centered at a position preset by the first and second sliders 192c and 192d while being supported by the support wall 192b.

The second suction unit 183 is formed so as to suck the molded lens 40 placed on the molded lens centering portion 192 and load it on the molded lens loading tray 188.

100 Lens and mold transfer system 111 Mold transfer unit 113 Mold loading unit 120 Mold transfer unit 121 Mold transfer unit 122 Transfer table 122a Vibration unit 122b Rotating plate 123 Mold transfer loader 124 Height correction unit 130 Mold centering Part 140 Upper core pickup part 151, 152 Molded lens transfer part 153 Lens raw material transfer part 156 Air suction part 160 Lens raw material pickup part 180 Molded lens loading part

Claims (10)

An upper core pickup portion formed so as to pick up the upper core of the mold for taking out the molded lens during the process of transferring the mold.
A molded lens transfer unit formed to pick up and transfer a molded lens exposed to the outside by the pickup of the upper core, and a molded lens transfer unit.
An air suction unit that is arranged so as to cover the lower core of the mold after the molded lens is picked up by the molded lens transfer unit and is formed to suck air for cleaning the mold.
It includes a lens raw material transfer section formed so that the lens raw material is placed on the lower core after the mold is cleaned by the air suction section.
A lens and mold transfer system, wherein the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit are formed so as to move together. The molded lens transfer unit is
A first molded lens transfer module formed so as to attract a molded lens mounted on the lower core, and a first molded lens transfer module.
The lens and mold transfer system according to claim 1, further comprising a second molded lens transfer module formed so as to attract the molded lens attached to the upper core. The lens and mold transfer system according to claim 2, wherein the air suction unit is arranged between the first molded lens transfer module and the lens raw material transfer unit. When the molded lens is attracted by the first molded lens transfer module, the second molded lens transfer module is not driven, and the air suction portion is driven to clean the mold. Item 2. The lens and mold transfer system according to Item 2. The lens and mold transfer system according to claim 2, wherein the air suction unit is arranged so as to be vertically overlapped with the second molded lens transfer module. The lens and mold transfer system according to claim 5, wherein the air suction unit is formed so as to be relatively movable up and down with respect to the second molded lens transfer module. 2. The first molded lens transfer module is arranged so as to cover a wider area than the molded lens, and includes a plurality of suction units for adsorbing the molded lens mounted on the lower core. The lens and mold transfer system described in. The plurality of suction units are connected in parallel to one vacuum generator, and the valve is configured to open when the molded lens is adsorbed and to close when the molded lens is not adsorbed. Item 7. The lens and mold transfer system according to Item 7. A transfer table provided so that the mold can be slid and transferred,
Further included is a mold transfer loader formed to slide and transfer the mold in the first direction on the transfer table.
The upper core pickup unit is arranged so as to overlap the transfer table.
The lens according to claim 1, wherein the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit are formed so as to move together in a second direction perpendicular to the first direction. Mold transfer system. The guide rail extending in the second direction and
Further including a moving member provided on the guide rail and moving along the guide rail.
The lens and mold transfer system according to claim 9, wherein the molded lens transfer unit, the air suction unit, and the lens raw material transfer unit are provided on the moving member, respectively.

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