Spectacle lens transport device and spectacle lens processing system

Abstract

To provide a spectacle lens transport device and a spectacle lens processing system that are capable of appropriately transporting spectacle lenses with a simple configuration.SOLUTION: A spectacle lens transport device for transporting spectacle lenses, comprising: a first moving unit that moves the spectacle lens between a standby position for the spectacle lens at least either before or after processing by a spectacle lens processing device and a first position different from the standby position for the spectacle lens; a second moving unit that moves the spectacle lens between a processing position for the spectacle lens in the spectacle lens processing device and a second position different from the processing position for the spectacle lens; and a transfer unit that transfers the spectacle lens between the first position and the second position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an eyeglass lens transport device that transports eyeglass lenses between an eyeglass lens processing device and another position, and an eyeglass lens processing system for processing the periphery of an eyeglass lens. [Background technology]

[0002] There are known techniques for transporting eyeglass lenses between eyeglass lens processing devices and other positions. For example, the eyeglass lens peripheral processing system described in Patent Document 1 includes a robot arm. The robot arm includes an arm portion having a plurality of joints and a holding portion provided on the arm portion for holding and releasing an object. The robot arm rotates the arm portion via the joints to move the eyeglass lens held in the holding portion between the eyeglass lens standby position and the eyeglass manufacturing device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-058948 Summary of the Invention [Problem to be solved by the invention]

[0004] As described in Patent Document 1, when a multi-axis robot arm is used to transport eyeglass lenses, the eyeglass lenses can be transported freely, but the system configuration becomes complicated. When the system configuration becomes complicated, there is a high possibility that undesirable situations will occur, such as an increase in costs or a longer transport time.

[0005] In view of the above problems, the present disclosure has as its technical object to provide an eyeglass lens transport device and eyeglass lens processing system that are capable of properly transporting eyeglass lenses with a simple configuration. [Means for solving the problem]

[0006] In order to solve the above problems, the present disclosure is characterized by having the following configuration. (1) A spectacle lens transporting device according to a first aspect of the present disclosure is a spectacle lens transporting device for transporting spectacle lenses, characterized in that it comprises: a first moving unit that moves the spectacle lens between a standby position for the spectacle lens at least one of before and after processing by a spectacle lens processing device and a first position different from the standby position for the spectacle lens; a second moving unit that moves the spectacle lens between a processing position for the spectacle lens in the spectacle lens processing device and a second position different from the processing position for the spectacle lens; and a transfer unit that transfers the spectacle lens between the first position and the second position. (2) A spectacle lens processing system according to a second aspect of the present disclosure is a spectacle lens processing system for processing the periphery of a spectacle lens, and includes a spectacle lens processing device that processes the periphery of the spectacle lens held by a lens holding shaft using a processing tool, a first moving unit that moves the spectacle lens between a standby position for the spectacle lens at least one of before and after processing and another position, a second moving unit that moves the spectacle lens between a processing position for the spectacle lens in the spectacle lens processing device and another position, a transfer unit that transfers the spectacle lens between the first moving unit and the second moving unit, and a control unit. and a control unit, wherein the control unit controls the first moving unit, the second moving unit, and the transfer unit to transport the eyeglass lens from the standby position of the eyeglass lens to the eyeglass lens processing device, hold the eyeglass lens on a lens holding shaft of the eyeglass lens processing device, control the eyeglass lens processing device to process the periphery of the eyeglass lens with a processing tool, and after the processing of the eyeglass lens is completed by the eyeglass lens processing device, control the first moving unit, the second moving unit, and the transfer unit to move the processed eyeglass lens to the standby position. [Brief explanation of the drawings]

[0007] [Figure 1]1 is an external view of an eyeglass lens processing system. [Figure 2] FIG. 2 is an external view of the eyeglass lens transport device. [Figure 3] FIG. 2 is an external view of a first moving unit. [Figure 4] FIG. 10 is an external view of a second moving unit. [Figure 5] FIG. [Figure 6] 1 is an external view of an eyeglass lens processing apparatus; [Figure 7] FIG. 2 is an external view of a lens processing mechanism. [Figure 8] FIG. 2 is an external view of a cup and an adhesive tape. [Figure 9] FIG. 2 is a block diagram showing a control system of the eyeglass lens processing system. [Figure 10] 10 is a flowchart showing a control operation. [Figure 11] FIG. 10 is a plan view showing the transport of the left lens before processing to the transfer unit. [Figure 12] FIG. 10 is a front view showing the transfer of the left lens to the second moving unit. [Figure 13] FIG. 10 is a front view showing the transport of a left lens to the eyeglass lens processing device. [Figure 14] FIG. 10 is a front view of a state in which a right lens before processing and a left lens after processing are held in the transfer unit. [Figure 15] FIG. 10 is a front view showing the transfer of the right lens to the second moving unit. [Figure 16] FIG. 10 is a front view showing the change in the orientation of the left lens by the transfer unit. [Figure 17] FIG. 10 is a plan view showing the movement of the tray position during lens processing. DETAILED DESCRIPTION OF THE INVENTION

[0008] <Summary> An outline of the eyeglass lens transport device and eyeglass lens processing system according to this embodiment will be described. The items classified in < > below can be used independently or in conjunction with each other.

[0009] An eyeglass lens conveying device (e.g., eyeglass lens conveying device 200) in the present disclosure is equipped with an eyeglass lens processing device (e.g., eyeglass lens processing device 300) used to process eyeglass lenses. In other words, an eyeglass lens processing system (e.g., eyeglass lens processing system 10) in the present disclosure includes an eyeglass lens conveying device and an eyeglass lens processing device. The eyeglass lens processing device may be a device different from the eyeglass lens processing device (e.g., at least one of a lens meter, a centering device, a cup attachment device, etc.).

[0010] The eyeglass lens transport device of the present disclosure is a device for transporting eyeglass lenses, and includes a first moving unit that moves the eyeglass lenses between a standby position for the eyeglass lenses before and / or after processing and a first position different from the standby position for the eyeglass lenses, a second moving unit that moves the eyeglass lenses between a processing position for the eyeglass lenses in the eyeglass lens processing device and a second position different from the processing position for the eyeglass lenses, and a transfer unit that transfers the eyeglass lenses between the first moving unit and the second moving unit. For example, it is often necessary to determine the transport path for the eyeglass lenses in accordance with the respective arrangements of the standby positions for the eyeglass lenses and the eyeglass lens processing devices. The eyeglass lens transport device of the present disclosure divides the process of moving the eyeglass lenses into a process of moving the eyeglass lenses by the first moving unit and a process of moving the eyeglass lenses by the second moving unit, and transfers the eyeglass lenses between the first moving unit and the second moving unit, thereby allowing the eyeglass lenses to be transported appropriately according to the transport path. Furthermore, by dividing the process into a process of moving eyeglass lenses using a first moving unit and a process of moving eyeglass lenses using a second moving unit, the configuration of each of the first moving unit and the second moving unit can be simplified. Furthermore, depending on each eyeglass lens transport process, it is possible to transport a processed eyeglass lens while transporting the next unprocessed eyeglass lens, or to process one eyeglass lens while preparing the other, thereby making the most of the waiting time between transport processes. In this case, it is easy to further improve work efficiency, such as by shortening the transport time. Therefore, the eyeglass lens transport device of the present disclosure can properly transport eyeglass lenses with a simple configuration.

[0011] The standby position of the eyeglass lens can be set as appropriate. As an example, the standby position of the eyeglass lens may be the position of the eyeglass lens placed on the conveyor of a tray transport device (e.g., tray transport device 100). As another example, the standby position of the eyeglass lens may be the position of the eyeglass lens placed on the lens placement portion of a tray transported on the conveyor of the tray transport device. As another example, the standby position of the eyeglass lens may be the position of the eyeglass lens placed on the lens placement portion of a tray currently being worked on in a tray transport device that automatically stacks or unloads trays.

[0012] The first position may be any position that is different from at least the waiting position of the eyeglass lenses. The first position may be a position where the first moving unit can hand over the eyeglass lenses to the second moving unit. The first position may also be a position where the first moving unit can receive the eyeglass lenses from the second moving unit.

[0013] The processing position of the eyeglass lens may be a position where the eyeglass lens conveyed by the eyeglass lens processing device is processed. As an example, the processing position may be a position where the eyeglass lens is held by a lens chuck shaft (e.g., lens chuck shaft 622) of the eyeglass lens processing device.

[0014] The second position may be any position different from the processing position of the eyeglass lens. The second position may be a position where the second moving unit can receive the eyeglass lens from the first moving unit. The second position may also be a position where the second moving unit can deliver the eyeglass lens to the first moving unit. The first position and the second position may be the same position.

[0015] In the eyeglass lens transport device of the present disclosure, each of the first and second moving units may transport the eyeglass lenses while maintaining the direction in which the lens surfaces of the eyeglass lenses face. In this case, each of the first and second moving units does not need to change the direction in which the lens surfaces face. This makes it even easier to simplify the configuration of the first and second moving units.

[0016] The direction in which the lens surface of the eyeglass lens faces may be the direction in which the first moving unit and the second moving unit each suction-adsorb the eyeglass lens. For example, when transporting eyeglass lenses from the first moving unit, the direction in which the lens surface faces may be the direction in which the eyeglass lens placed on the tray is suction-adsorbed. Also, for example, when transporting eyeglass lenses from the second moving unit, the direction in which the lens surface faces may be the direction in which the eyeglass lens held by the lens chuck shaft is suction-adsorbed. In this way, by transporting the eyeglass lenses while maintaining their orientation in advance in accordance with the orientation of the eyeglass lenses to be delivered to the destination, the eyeglass lenses can be delivered smoothly.

[0017] Furthermore, in the eyeglass lens transport device of the present disclosure, the direction in which the lens surface of the eyeglass lens faces when waiting at the standby position may be different from the direction in which the lens surface of the eyeglass lens faces when installed at the processing position of the eyeglass lens processing device. The transfer unit may include a lens holding unit and a lens direction changing unit. The lens holding unit holds the eyeglass lens. The lens direction changing unit changes the direction in which the lens surface of the eyeglass lens held by the lens holding unit faces. In this case, the direction in which the lens surface of the eyeglass lens faces can be appropriately changed while simplifying the configuration of the first moving unit and the second moving unit.

[0018] The transfer unit may further include a base and a rotation drive unit. The base includes a lens holding unit and is rotatable. The rotation drive unit rotates the base around an axis. By rotating the base around the axis, the direction of the lens surface of the eyeglass lens held by the lens holding unit may be changed, and the eyeglass lens may be transferred between the first moving unit and the second moving unit. For example, when the axial direction of the eyeglass lens placed on the tray differs from the axial direction of the eyeglass lens held by the lens chuck shaft of the eyeglass lens processing device, it is necessary to change the direction of the lens surface. By changing the direction of the lens surface while transferring the eyeglass lens between the first moving unit and the second moving unit, the transfer of the eyeglass lens and the change of the direction of the lens surface can be performed efficiently.

[0019] The transfer unit may include a plurality of lens holding sections. The lens holding sections may simultaneously hold unprocessed and processed lenses during at least part of the process of transporting a plurality of lenses. In this case, for example, the eyeglass lens transport device may have unprocessed eyeglass lenses waiting in one lens holding section, and have processed eyeglass lenses held in another lens holding section by the second moving unit, thereby enabling the eyeglass lenses that were waiting in advance to be quickly transferred to the second moving unit. As a result, work efficiency is further improved.

[0020] The eyeglass lens may be fitted with a cup to which a lens chuck shaft of the eyeglass lens processing device is attached. A magnetic force generating unit that generates a magnetic force may be provided on at least one of the lens holding unit of the transfer unit and the cup, so that the eyeglass lens is held in the lens holding unit of the transfer unit by the attractive force of the magnetic force generating unit. As described above, the lens holding unit of the transfer unit needs to hold the eyeglass lens. However, when the transfer unit transfers the eyeglass lens to the first moving unit or the second moving unit, if the transfer unit's hold on the eyeglass lens is stronger than the force with which the first moving unit or the second moving unit holds the eyeglass lens, the eyeglass lens may not be transferred correctly. Therefore, the lens holding unit needs to hold the eyeglass lens with an appropriate holding force. By holding the eyeglass lens with the attractive force of the magnetic force generating unit, the eyeglass lens can be held with an appropriate holding force, making it easy to attach and detach the eyeglass lens.

[0021] <Example> A typical example of the eyeglass lens transport device and eyeglass lens processing system according to this embodiment will be described.

[0022] <Appearance of the device> FIG. 1 is an external view of an eyeglass lens processing system 10. The eyeglass lens processing system 10 of the present disclosure comprises a tray transport device 100, an eyeglass lens transport device 200, an eyeglass lens processing device 300, a base 500, etc. The tray transport device 100 transports trays 400 on which eyeglass lenses (hereinafter referred to as lenses) are placed. The eyeglass lens transport device 200 transports lenses between the trays 400 and the eyeglass lens processing device 300. The tray 400 is an example of a standby position for lenses at least either before or after processing by the eyeglass lens processing device 300. The eyeglass lens processing device 300 processes the periphery of the lens. The base 500 is a mounting table on which the eyeglass lens transport device 200, the eyeglass lens processing device 300, etc. are placed.

[0023] <Tray transport device> As an example, the tray transport device 100 of the present disclosure includes a belt conveyor 101. Trays 400 are placed on the belt conveyor 101. An ID tag 401 storing the work number of the lens LE is attached to the tray 400. The trays 400 are sequentially transported in the direction of arrow A and are stopped at a predetermined position Q1 where the eyeglass lens transport device 200 receives and delivers the lens LE. The ID tag 401 of the tray 400 is read by an ID tag reader 402 arranged at the predetermined position Q1. Furthermore, lenses to be processed are placed in pairs on the left and right sides on a lens placement stage 403 of the tray 400.

[0024] <Eyeglass lens transport device> 2 is a schematic diagram of the eyeglass lens transport device 200. The eyeglass lens transport device 200 includes a first moving unit 210, a second moving unit 220, a delivery unit 230, a first moving mechanism 240, a second moving mechanism 250, and the like.

[0025] The first movement mechanism 240 moves the first movement unit 210 and the delivery unit 230 together in the left-right direction (X direction). Of course, the first movement mechanism 240 may move the first movement unit 210 and the delivery unit 230 separately. The first movement mechanism 240 includes a first transport base 241, a first rail 242, a first movement base 243, and the like.

[0026] The first transport base 241 extends parallel to the direction in which the tray 400 is moved by the tray transport device 100. The first rail 242 is provided on the first transport base 241. The first moving unit 210 and the delivery unit 230 are provided on the first moving base 243. The first moving base 243 is attached so as to be movable in the left-right direction (X direction) on the first rail 242. When a motor (not shown) is driven, the first moving unit 210 and the delivery unit 230 provided on the first moving base 243 move in the X direction along the first rail 242.

[0027] Second movement mechanism 250 moves second movement unit 220 in the left-right direction (X direction) and the up-down direction (Y direction). Second movement mechanism 250 includes second X transport base 251, second X rail 252, second X movement base 253, second Y transport base 254, second Y rail 255, second Y movement base 256, etc.

[0028] The second X transport base 251 extends parallel to the direction in which the tray 400 is moved by the tray transport device 100. The second X rail 252 is provided on the second X transport base 251. The second movement unit 220 is connected to the second X movement base 253. The second X movement base 253 is attached so as to be movable in the left-right direction (X direction) on the second X rail 252. When a motor (not shown) is driven, the second movement unit 220 connected to the second X movement base 253 moves in the X direction along the second X rail 252.

[0029] Second-Y transport base 254 extends in a vertical direction intersecting the direction in which tray 400 is moved by tray transport device 100. Second-Y rail 255 is provided on second-Y transport base 254. Second-Y movement unit 220 is connected to second-Y movement base 256. Second-Y movement base 256 is attached so as to be movable in the vertical direction (Y direction) on second-Y rail 255, and when a motor (not shown) is driven, second movement unit 220 connected to second-Y movement base 256 moves in the Y direction along second-Y rail 255.

[0030] <First Mobile Unit> 3 is a schematic diagram of the first moving unit 210. The first moving unit 210 moves the lens between a standby position for the lens before and / or after processing by the eyeglass lens processing device and a first position different from the standby position for the lens. In this embodiment, the first position is a position where a first lens holding part 234 or a second lens holding part 235 of the transfer unit 230 (described later) faces upward (Y direction) and is coaxial (approximately coaxial) with the holding axes thereof. The first moving unit 210 includes a base 211, a vertical sliding part 212, a vertical movement mechanism 213, a motor 214, a first arm 215, a holding part 216, etc.

[0031] The base 211 is connected onto a first moving base 243 (see FIG. 2) of the first moving mechanism 240. A vertical sliding unit 212 is connected to the base 211 so as to be vertically movable. The vertical sliding unit 212 is moved vertically by a vertical moving mechanism 213 arranged inside the base 211 and including a motor, a slide rail, etc. A first arm 215, which rotates around a rotation axis Y1, is connected to the upper part of the vertical sliding unit 212. The first arm 215 is rotated by a rotation mechanism of a motor 214 arranged inside the vertical sliding unit 212. The first arm 215 transports the lens LE while maintaining the direction in which the lens surface of the eyeglass lens faces relative to the lens LE placed on the tray 400. For example, the first arm 215 receives an unprocessed lens LE placed on the tray 400 and transfers the lens LE to a first lens holding unit 234 of the transfer unit 230, which will be described later. Furthermore, for example, the first arm 215 receives the processed lens LE from the second lens holder 235 of the transfer unit 230 (described later) and places the lens LE on the tray 400. A holder 216 that suctions and holds the lens LE is provided at the tip of the first arm 214. For example, the holder 216 switches between holding and releasing the lens LE by switching between suction and release of suction on the surface of the lens LE. For example, the holder 216 is provided with a suction hole, which is connected to a pump or the like (not shown) that sucks and discharges air via an air passage formed inside the first moving unit 210. For example, when the pump or the like (not shown) is driven for suction, the lens LE is suction-held by the holder 216. For example, when the suction drive of the pump unit (not shown) is stopped, the suction pressure returns to atmospheric pressure, and the suction-holding of the lens LE is released. However, the method for holding and releasing the lens LE may be changed. For example, the holding portion 216 may hold and release the lens LE by clamping the periphery of the lens or a cup attached to the lens LE.

[0032] <Second Mobile Unit> 4 is a schematic diagram of the second moving unit 220. The second moving unit 220 moves the eyeglass lens between a processing position of the eyeglass lens in the eyeglass lens processing apparatus and a second position different from the processing position of the eyeglass lens. In this embodiment, the second position is a position where the first lens holding part 234 or the second lens holding part 235 of the transfer unit 230 (described later) faces rightward (X direction), and is a position coaxial (approximately coaxial) with the holding axes thereof. The second moving unit 220 includes a base 221, a second arm 222, a motor 223, a holder 224, etc.

[0033] The base 221 is attached to a second Y movement base 256 of the second movement mechanism 250. A second arm 222 that rotates around a rotation axis X1 is connected to the base 221. The second arm 222 is rotated by a rotation mechanism of a motor 223. The second arm 222 transports the lens LE while maintaining the direction in which the lens surface of the eyeglass lens faces relative to a lens chuck shaft 622 of the eyeglass lens processing apparatus 300, which will be described later. For example, the second arm 222 receives the unprocessed lens LE from a first lens holding part 234 of the transfer unit 230, which will be described later, and delivers the lens LE to a processing position for the eyeglass lens of the eyeglass lens processing apparatus 300 (in this embodiment, the position of the lens chuck shaft 622 of the lens processing mechanism part 600, which will be described later). Furthermore, for example, the second arm 222 receives the processed lens LE from a processing position of the eyeglass lens of the eyeglass lens processing apparatus 300 (described later, in this embodiment, the position of the lens chuck shaft 622), and delivers the lens LE to the second lens holder 235 of the transfer unit 230. A holder 224 that adsorbs and holds the lens LE is provided at the tip of the second arm 222. For example, the holder 224 is provided with a suction hole similar to the holder 216 of the first moving unit 210, and switches between holding and releasing the lens LE by switching between adsorption and release of adsorption on the surface of the lens LE. Note that the tip of the second arm 222 may be configured not to interfere with the lens chuck shaft 622 when the lens chuck shaft 622 is released from its holding (chucking) and when the lens LE is adsorbed and held by the holder 224. This allows the lens LE to be delivered correctly to the lens chuck shaft 622.

[0034] <Delivery unit> 5 is a schematic diagram of the transfer unit 230. The transfer unit 230 transfers eyeglass lenses between a first position and a second position. The transfer unit 230 includes a base 231, a base portion 232, a rotation drive unit (motor) 233, a first lens holder 234, a magnetic force generator 235, a second lens holder 236, a magnetic force generator 237, and the like.

[0035] The base 231 is attached to a first moving base 243 of the first moving mechanism 240. The base 231 is provided with a base 232 that rotates around a rotation axis Z1. The base 232 is rotated by a rotation mechanism of a rotation drive unit (motor) 233. For example, the first lens holder 234 receives the unprocessed lens LE from the first arm 215 of the first moving unit 210 and hands over the lens LE to the second arm 222 of the second moving unit 220. For example, the first lens holder 234 may hold the lens LE by an attractive force generated between a magnetic force generator 235 (a magnet in this embodiment) and an iron core inserted into a hole 23 of a cup CU, which will be described later. The second lens holder 236 receives the processed lens LE from the second arm 222 of the second moving unit 220 and hands over the lens LE to the first arm 215 of the first moving unit 210. For example, the second lens holding portion 236 may hold the lens LE by a magnetic force generated between a magnetic force generating portion 237 (a magnet in this embodiment) and an iron core inserted into a hole 23 of a cup CU, which will be described later.

[0036] For example, with this configuration, the eyeglass lens transport device 200 moves the first moving unit 210, the second moving unit 220, and the delivery unit 230 in the left-right direction (X direction), the up-down direction (Y direction), and the front-back direction (Z direction). Also, by passing through the first moving unit 210, the second moving unit 220, and the delivery unit 230, the lens LE held by each unit is delivered and transported to the eyeglass lens processing device 300.

[0037] <Eyeglass lens processing equipment> 6 is a diagram showing the external configuration of an eyeglass lens processing apparatus 300. In this embodiment, an eyeglass lens processing apparatus that holds an eyeglass lens by a lens chuck shaft and processes the periphery of the eyeglass lens with a processing tool while the eyeglass lens is held by the lens chuck shaft will be described as an example. The eyeglass lens processing apparatus 300 includes a housing 311, a window 312, a monitor 313, a lens processing mechanism unit 600 (see FIG. 7), etc.

[0038] The housing 311 is an exterior cover that houses components such as the lens processing mechanism unit 600. The window 312 is openable and closable, and is used to insert and remove eyeglass lenses into and from the lens processing mechanism unit 600. The window 312 may be automatically opened and closed by a motor (not shown) or the like. The monitor 313 in this embodiment is a display with a touch panel function. That is, in this embodiment, the monitor 313 functions as an operation unit (controller). The monitor 313 does not have to be a touch panel type, and the monitor 313 and the operation unit may be provided separately. In this case, at least one of a mouse, a joystick, a keyboard, a mobile terminal, etc. may be used as the operation unit.

[0039] <Lens processing mechanism> 7 is a schematic diagram of the lens processing mechanism 600. For example, the lens processing mechanism 600 includes a group of grindstones 610, a carriage unit 620, a lens shape measuring unit 630, a lens processing unit 640, and the like.

[0040] <Whetstone group> The grindstone group 610 is used as a processing tool for grinding eyeglass lenses. The grindstone group 610 includes a rough grindstone 610a for plastics, a finishing grindstone 610b for high-curve lenses, a grindstone 610c for flat mirror finishing, a finishing grindstone 610d for beveling and flat processing, and a rough grindstone 610e for glass. The grindstone group 610 is attached to a grindstone rotation shaft 611. The grindstone rotation shaft 611 is rotated by a motor 612. The periphery of the lens clamped by a lens chuck shaft 622 (described later) is pressed against the grindstone group 610, which is rotated by the drive of the motor 612, to be processed.

[0041] <Carriage section> The carriage unit 620 includes a carriage 621, a lens chuck shaft 622, a moving support base 623, motors (motors 650 and 660), etc. The carriage 621 holds a lens chuck shaft (lens rotation shaft) 622. The carriage 621 is made up of a left arm 621L and a right arm 621R. The lens chuck shaft 622 holds a lens. The lens chuck shaft 622 is made up of a left chuck shaft 622L and a right chuck shaft 622R.

[0042] A left chuck shaft 622L is rotatably and coaxially held by the left arm 621L of the carriage 621. A right chuck shaft 622R is rotatably and coaxially held by the right arm 621R of the carriage 621. A motor 660 is attached to the right arm 621R, and when the motor 660 is driven, a rotation transmission mechanism such as a gear (not shown) rotates. The left and right chuck shafts 622L and 622R rotate synchronously with each other via this rotation transmission mechanism. In addition, a motor 650 is attached to the right arm 621R, and when the motor 650 is driven, the right chuck shaft 622R moves toward the left chuck shaft 622L. As a result, the lens is held by the left and right chuck shafts 622L and 622R.

[0043] The carriage 621 is mounted on a movable support base 623. The movable support base 623 moves the carriage 621 along a lens chuck shaft 622 and shafts (shafts 628 and 629) parallel to the grindstone rotation shaft 611. A ball screw (not shown) extending parallel to the shaft 628 is attached to the rear of the movable support base 623. This ball screw is attached to the rotation shaft of a motor 670. When the motor 670 is driven, the carriage 621 moves linearly in the X-axis direction (i.e., the axial direction of the lens chuck shaft 622) together with the movable support base 623. An encoder (not shown) that detects the movement of the carriage 621 in the X-axis direction is attached to the rotation shaft of the motor 670. A shaft 625 extending in the Y-axis direction (i.e., the direction in which the inter-axial distance between the left chuck shaft 622L and the right chuck shaft 622R and the grindstone rotation shaft 621 varies) is fixed to the moving support base 623. A motor 680 is fixed to the moving support base 623, and the drive of the motor 680 is transmitted to a ball screw 627 extending in the Y-axis direction. The carriage 621 moves in the Y-axis direction by rotation of the ball screw 627. An encoder (not shown) is attached to the rotating shaft of the motor 680 to detect the movement of the carriage 621 in the Y-axis direction.

[0044] <Lens shape measurement section> The lens shape measuring unit 630 may be configured to measure the lens shape (in this case, the outer shape of the demo lens) by bringing a tracing head into contact with the demo lens and moving the tracing head along the outer periphery of the demo lens. For example, the tracing head is moved rearward (in the direction in which the tracing head moves away from the lens chuck shaft 622) according to the outer shape of the demo lens, and the outer shape of the demo lens can be measured by detecting the moved position.

[0045] Furthermore, the lens shape measuring unit 630 can be used not only as a measuring unit for measuring the outer shape of the demo lens, but also as a measuring unit for measuring the lens surface shape (at least one of the front surface shape and the rear surface shape) of a spectacle lens. For example, when measuring the lens surface shape of a spectacle lens, the spectacle lens is clamped by the lens chuck shaft 622, and the spectacle lens is rotated with the tip of the measuring probe in contact with the front surface or the rear surface of the spectacle lens. At this time, the movement of the lens chuck shaft 622 in the Y-axis direction is controlled based on the lens shape. By detecting the positions in the X-axis direction corresponding to the lens shape on the front and rear surfaces of the spectacle lens, it is possible to measure the lens surface shape of the spectacle lens (for example, the edge position corresponding to the lens shape of the lens surface, the curve value of the lens surface, the inclination angle of the edge surface, the thickness of the edge surface, etc.).

[0046] <Lens Processing Department> The lens processing unit 640 is used to perform at least one of drilling, grooving, and chamfering on the eyeglass lens. The lens processing unit 640 may include an end mill as a processing tool for drilling holes in the eyeglass lens, a groove cutting cutter as a processing tool for grooving the eyeglass lens, and a chamfering grindstone. For a detailed configuration of the lens processing unit, see, for example, Japanese Patent Application Laid-Open No. 2017-177234.

[0047] <Cup and adhesive tape> FIG. 8 is a diagram illustrating the cup CU and adhesive tape TA. The cup CU is used as a processing jig for eyeglass lenses. The adhesive tape TA is used to fix the cup CU to the refractive surface of the lens LE. The refractive surface of the lens LE to which the cup CU is fixed is generally the front surface of the lens, but it may also be the back surface of the lens. In this embodiment, the cup CU is fixed to the refractive surface of the lens LE in advance, and then the left and right lenses LE are placed on the lens placement portion 403 of the tray 400 so that the refractive surfaces to which the cup CU is fixed face downward.

[0048] The cup CU includes a base 21, a flange 22, a hole 23, etc. For example, the base 21 and the flange 22 are integrally formed from resin.

[0049] The base 21 is inserted into the cup holders provided on the lens holding portion of the transfer unit 230 and the lens chuck shaft 622 of the eyeglass lens processing device 300. For example, a key groove 21a extending in the left-right direction is formed in the upper part of the base 21. The key groove 21a is used to establish a predetermined positional relationship between the astigmatic axis angle of the lens LE and the left-right direction of the eyeglass lens when attaching the cup CU to the lens LE and when processing the peripheral edge of the lens LE. The flange 22 is formed in an elliptical shape with a diameter larger than that of the base 21. The longitudinal direction of the elliptical shape is the same as the extending direction of the key groove 21a. The hole 23 is a hole formed in the center of the base 21. In other words, the hole 23 is a hole formed perpendicular to the fixing surface of the cup CU (i.e., the lower surface of the flange 22). An iron core (not shown) is inserted into the hole 23. The iron core (not shown) is attracted to each of the magnetic force generating unit 235 provided in the first lens holding portion 234 of the delivery unit 230 and the magnetic force generating unit 237 provided in the second lens holding portion 235. For example, the iron core (not shown) is attracted to the magnetic force generating unit 235 and the magnetic force generating unit 237, whereby the lens LE is held by each of the first lens holding portion 234 and the second lens holding portion 235 of the delivery unit 230.

[0050] The adhesive tape TA is formed to have the same outer shape as the lower surface of the flange portion 22. For example, the base material of the adhesive tape TA may be rubber. Also, for example, the thickness of the adhesive tape TA may be about 1 mm. The upper and lower surfaces of the adhesive tape TA are configured to be adhesive. The upper surface of the adhesive tape TA is attached to the fixing surface of the cup CU, and the lower surface of the adhesive tape TA is attached to the refractive surface of the lens LE. In this way, the cup CU is fixed to the eyeglass lens via the adhesive tape TA.

[0051] <Control unit> FIG. 9 is a block diagram showing a control system of the eyeglass lens processing system 10. In this embodiment, the tray conveying device 100 is provided with a control unit 30, the eyeglass lens conveying device 200 is provided with a control unit 40, and the lens processing unit 300 is provided with a control unit 50. Each control unit controls the driving of the motors and other components of each unit. Each control unit may be implemented with a general CPU (processor), ROM, RAM, etc. Each control unit is connected to a host computer (hereinafter abbreviated as host PC) 60 and is capable of wireless or wired communication. However, a device other than a PC (e.g., at least one of a server, a tablet terminal, a smartphone, etc.) may also be used as the host PC 60. Data related to the lens LE can be input to the host PC 60 via an input unit (not shown). The host PC 60 is also provided with a memory 70 as a storage unit. The memory 70 may be a non-transitory storage medium that can retain its contents even when the power supply is cut off. For example, the memory 70 may be a hard disk drive, a flash ROM, a removable USB memory, etc. The host PC 60 may be common to at least one of the control unit 30 of the tray transport device 100 , the control unit 40 of the eyeglass lens transport device 200 , and the control unit 50 of the lens processing unit 300 .

[0052] <Control action> The processing executed by the eyeglass lens processing system 10 having the above-described configuration will be described with reference to the flowchart in Fig. 10. In the eyeglass lens processing system 10 of this embodiment, the unprocessed lenses LE placed on the tray 400 are transported to the eyeglass lens processing device 300 by the eyeglass lens transporting device 200. The eyeglass lens processing device 300 processes the lenses LE. The processed lenses LE are also transported to the tray 400 by the eyeglass lens transporting device 200. In this embodiment, processing is performed starting with the left lens LEl on the left side when viewed from the front of the tray 400, and after processing of the left lens LEl is completed, processing of the right lens LEr is performed.

[0053] <Work data registration: S1> For example, the operator registers work data for lens processing. For example, the operator places a pair of lenses LE on the left and right sides at predetermined positions on the lens placement table 403 on the tray 400 so that the centers (approximate centers) of the lenses LE to which the cups CU are fixed are aligned. The center of the lens LE may be the geometric center or the optical center of the lens LE. In this embodiment, the case where the center of the lens LE is the optical center of the lens LE is taken as an example. Also, for example, the operator inputs lens data such as lens shape data and layout data of the lens LE (e.g., the positional relationship between the optical center of the lens LE and the lens shape) into the host PC 60. The host PC 60 assigns a work number to each of the input lens data and registers the work number in the ID tag 401 of the tray 400. Next, the operator sequentially places the trays 400 on the belt conveyor 101.

[0054] <Tray transport: S2> For example, an operator presses a drive button (not shown) of the tray transport device 100. When the control unit 30 of the tray transport device 100 confirms that the drive button (not shown) has been pressed, it drives the belt conveyor 101 to transport the tray 400 in the feed direction (the direction of arrow A in FIG. 1). Furthermore, the control unit 30 stops the drive when the tray 400 reaches a predetermined position Q1. At this time, the ID tag reader 402 reads the work number on the ID tag attached to the tray 400, and the signal is input to the host PC 60. The host PC 60 transmits data related to the processing of the lens LE corresponding to this work number to the eyeglass lens processing device 300. Furthermore, the host PC 60 transmits an operation start signal to the eyeglass lens transport device 200.

[0055] <Transportation to delivery unit: S3> 11 is a plan view showing the transport of the left lens LEl before processing to the delivery unit 230. When the control unit 40 of the eyeglass lens transporting device 200 receives an operation start signal, it starts transporting the left lens LEl before processing placed on the tray 400 to the delivery unit 230 by the first moving unit 210.

[0056] For example, the control unit 40 of the eyeglass lens transport device 200 causes the first arm 215 of the first moving unit 210 to rotate using the rotation mechanism of the motor 214. Also, for example, the control unit 40 moves the first moving base 243 of the first moving mechanism 240 so as to coincide (substantially coincide) with a predetermined position on the lens placing table 403 on the tray 400 where the left lens LEl can be held. For example, the control unit 40 moves the first moving unit 210 so that the center (substantially coincident) of the holding unit 216 provided on the first arm 215 of the first moving unit 210 coincides (substantially coincides) with the center (substantially coincident) of the left lens LEl. As a result, the optical center of the left lens LEl is positioned near the suction hole of the holding unit 216. Thereafter, the control unit 40 lowers the first arm 215 and starts suction by the holding unit 216, thereby suction-holding the left lens LEl.

[0057] After the holding part 216 suction-holds the left lens LEl, the control part 40 starts transporting the left lens LEl to the transfer unit 230. For example, the control part 40 raises the first arm 215 and rotates it in the direction of arrow B, thereby moving the left lens LEl so that the cup CU fixed to the left lens LEl faces downward (Y direction). Also, for example, the control part 40 moves the left lens LEl to a first position where the first lens holding part 234 of the transfer unit 230 facing upward (Y direction) and the holding part 216 provided on the first arm 215 of the first moving unit 210 are coaxial (substantially coaxial). For example, the control part 40 lowers the first arm 215, releasing the suction of the left lens LEl by the holding part 216. For example, a cup CU fixed to the optical center of the left lens LEl is attracted by a magnetic force generating unit 235 provided in the first lens holding unit 234, thereby holding the left lens LEl in the first lens holding unit 234. This causes the left lens LEl to wait at the first position, and the transport of the left lens LEl from the tray 400 to the delivery unit 230 is completed.

[0058] <Handing over to the second mobile unit: S4> 12 is a front view showing the delivery of the left lens LEl to the second moving unit 220. When the delivery of the left lens LEl to the delivery unit 230 is completed, the control unit 40 of the eyeglass lens transporting device 200 starts the delivery of the left lens LEl to the second moving unit 220.

[0059] For example, the control unit 40 causes the rotation drive unit (motor) 233 of the transfer unit 230 to rotate the base unit 232 by 90 degrees in the direction of arrow C. As a result, the cup CU fixed to the left lens LEl held by the first lens holding unit 234 faces leftward (-X direction). Furthermore, the left lens LEl held by the first lens holding unit 234 of the transfer unit 230 is disposed so as to face the holding unit 224 of the second moving unit 220. Through the above process, the left lens LEl moves from the first position to the second position.

[0060] As in this embodiment, the direction in which the lens surface of the lens LE placed on the tray 400 faces may differ from the direction in which the lens surface of the lens LE chucked by the lens chuck shaft 622 of the eyeglass lens processing apparatus 300 faces. For this reason, by rotating the base part 232 of the transfer unit 230 around the rotation axis Z1, the direction of the lens surface of the lens LE held by the transfer unit 230 can be easily changed, and the lens LE can be smoothly transferred from the first moving unit 210 to the second moving unit 220.

[0061] For example, the control unit 40 rotates the second arm 222 of the second moving unit 220 using the rotation mechanism of the motor 223. Furthermore, for example, the control unit 40 drives the second-X transport base 251 and the second-Y moving base 256 of the second moving mechanism 250 to move the second arm 222 so that the second arm 222 coincides (or substantially coincides) with a predetermined second position where the left lens LE1 can be held. For example, the control unit 40 moves the second moving unit 220 so that the center (or substantially the center) of the holder 224 of the second arm 222 and the center (or substantially the center) of the left lens LE1 held by the first lens holder 234 of the transfer unit 230 are coaxial (or substantially coaxial). As a result, the optical center of the left lens LE1 is positioned near the suction hole of the holder 224 of the second arm 222.

[0062] Thereafter, the control unit 40 moves the second movement unit 220 in the direction of arrow D (X direction), and starts suction by the holding unit 224, thereby attracting and holding the left lens LEl to the holding unit 224. Note that the suction by the holding unit 224 is stronger than the suction by the magnetic force generation unit 235 of the first lens holding unit 234. As a result, the left lens LEl is held by the holding unit 224 of the second movement unit 220, and the left lens LEl is delivered from the delivery unit 230 to the second movement unit 220.

[0063] <Transportation to eyeglass lens processing equipment: S5> 13 is a front view showing the transport of the left lens LEl to the eyeglass lens processing apparatus 300. When the left lens LEl is handed over to the second moving unit 220, the control unit 40 of the eyeglass lens transporting apparatus 200 transports the left lens LEl to the eyeglass lens processing apparatus 300.

[0064] For example, the control unit 40 rotates the second arm 222 of the second moving unit 220 using the rotation mechanism of the motor 223. Furthermore, for example, the control unit 40 drives the second-X transport base 251 and the second-Y transport base 254 of the second moving mechanism 250 to transport the left lens LE1 to the eyeglass lens processing apparatus 300. For example, the control unit 40 moves the second moving unit 220 so that the center (approximate center) of the holding portion 224 of the second arm 222 and the center (approximate center) of the lens chuck shaft 622 of the eyeglass lens processing apparatus 300 are coaxial. As a result, the cup CU fixed to the optical center of the left lens LE1 is positioned near the center (approximate center) of the left chuck shaft 622L of the lens chuck shaft 622, which has been determined in advance.

[0065] Thereafter, the control unit 40 moves the second moving unit 220 in the direction toward the left chuck shaft 622L (X direction), and releases the suction of the left lens LEl by the holding part 224 of the second arm 222. For example, the cup CU of the left lens LEl is attracted by a magnetic force generating part (not shown) provided on the left chuck shaft 622L of the lens chuck shaft 622 of the eyeglass lens processing apparatus 300, and the left lens LEl is held by the left chuck shaft 622L of the lens chuck shaft 622. For example, the control unit 40 retracts the second arm 222 to near the top of the window 312 of the eyeglass lens processing apparatus 300.

[0066] For example, when the control unit 40 retracts the second arm 222, it sends a transfer completion signal to the host PC 60. For example, when the host PC 60 receives the transfer completion signal, it controls the eyeglass lens processing apparatus 300. For example, the control unit 50 of the eyeglass lens processing apparatus 300 drives the motor 650 to move the right chuck shaft 622R toward the left chuck shaft 622L, and the left lens LEl is held (chucked) by the left and right chuck shafts 622L and 622R. For example, when the control unit 50 confirms that the left lens LEl is held by the chuck shafts, it automatically closes the window 312 of the eyeglass lens processing apparatus 300 using a motor or the like (not shown). This completes the transfer of the left lens LEl from the second moving unit 220 to the eyeglass lens processing apparatus 300.

[0067] <Lens processing: S6> For example, when the control unit 50 of the eyeglass lens processing device 300 confirms that the left lens LE1 is held by the chuck shaft, it processes the periphery of the eyeglass lens based on data related to processing of the left lens LE1 corresponding to the job number transmitted in advance (for details, see Japanese Patent Application Laid-Open No. 2017-177234). Also, for example, the control unit 50 transmits a processing start signal to the host PC 60.

[0068] <Preparing for the next lens processing: S7> For example, upon receiving a processing start signal, the host PC 60 controls the eyeglass lens transport device 200. For example, the control unit 40 of the eyeglass lens transport device 200, while processing the left lens LEl, causes the transfer unit 230 to prepare the right lens LEr to be processed next. For example, the control unit 40 causes the rotation drive unit (motor) 233 of the transfer unit 230 to rotate the base unit 232 by 90 degrees in the direction opposite to the arrow C (see FIG. 12 ) and return the first lens holding unit 234 to its original position (i.e., facing upward (Y direction)). This causes the first lens holding unit 234 of the transfer unit 230 to be located at a first position where it can hold the right lens LEr. For example, the control unit 40 causes the first moving unit 210 to transport the right lens LEr from the tray 400 in the same procedure as for the left lens LEl, and causes the first lens holding unit 234 of the transfer unit 230 to hold the right lens LEr and wait at the first position.

[0069] <Transporting the processed lens to the delivery unit: S8> When the control unit 50 of the eyeglass lens processing apparatus 300 finishes processing the left lens LEl, it drives the motor 650 to release the holding (chucking) of the left lens LEl. The control unit 50 also automatically opens the window 312 of the eyeglass lens processing apparatus 300 using a motor or the like (not shown), and sends a processing end signal to the host PC 60. Upon receiving the processing end signal, the host PC 60 controls the eyeglass lens transport device 200 again. The control unit 40 of the eyeglass lens transport device 200 rotates the second arm 222 of the second movement unit 220 using the rotation mechanism of the motor 223. Furthermore, for example, the control unit 40 drives the second-X transport base 251 and the second-Y movement base 256 of the second movement mechanism 250 to remove the left lens LEl from the eyeglass lens processing apparatus 300. For example, the control unit 40 moves the second moving unit 220 so that the center (approximately the center) of the holding portion 224 of the second arm 222 and the center (approximately the center) of the lens chuck shaft 622 of the eyeglass lens processing device 300 are coaxial (approximately coaxial).

[0070] Thereafter, the control unit 40 moves the second moving unit 220 in the direction of arrow E (X direction), and starts suction by the holding portion 224, thereby attracting and holding the left lens LE1 to the holding portion 224. Note that the suction by the holding portion 224 is stronger than the suction of a magnetic force generating portion (not shown) provided on the left chuck shaft 622L of the lens chuck shaft 622. In this way, the processed left lens LE1 is held by the holding portion 224 of the second moving unit 220.

[0071] 14 is a front view showing a state in which the right lens LEr before processing and the left lens LEl after processing are held by the transfer unit 230. For example, the control unit 40 moves the second moving unit 220 so that the center (approximately the center) of the holding portion 224 of the second arm 222 and the center (approximately the center) of the left lens LEl held by the second lens holding portion 234 of the transfer unit 230 are coaxial (approximately the same axis). As a result, the left lens LEl held by the holding portion 224 of the second arm 222 is disposed so as to face the holding portion 224 of the second moving unit 220.

[0072] Thereafter, the control unit 40 moves the second moving unit 220 in the direction of arrow D (X direction), and releases the suction of the left lens LEl by the holding unit 224 of the second arm 222. For example, a cup CU fixed to the optical center of the left lens LEl is attracted by a magnetic force generating unit 237 provided in the second lens holding unit 236, thereby holding the left lens LEl in the second lens holding unit 236. In this way, the processed left lens LEl is delivered from the second moving unit 220 to the delivery unit 230. As a result, the delivery unit 230 is left to hold both the unprocessed right lens LEr and the processed left lens LEl.

[0073] 15 is a front view showing the delivery of the right lens LEr to the second moving unit 220. As with the left lens LEl, the control unit 40 of the eyeglass lens transport device 200 changes the direction in which the lens surface of the right lens LEr faces, and moves the right lens LEr from the first position to the second position, using the delivery unit 230. As a result, the right lens LEr is delivered to the second moving unit.

[0074] For example, when the processed left lens LEl is held by the second lens holding part 236, the control part 40 causes the rotation drive part (motor) 233 of the transfer unit 230 to rotate the base part 232 by 90 degrees in the direction of arrow C. As a result, the cup CU fixed to the right lens LEr held by the first lens holding part 234 faces leftward (X direction). Also, the right lens LEr held by the first lens holding part 234 of the transfer unit 230 is positioned so as to face the holding part 224 of the second moving unit 220. Through the above process, the right lens LEr moves from the first position to the second position. For example, the control part 40 causes the holding part 224 of the second moving unit 220 to hold the right lens LEr in the same procedure as the left lens LEl, and transports the right lens LEr to the eyeglass lens processing apparatus 300. Thereafter, the eyeglass lens processing apparatus 300 processes the periphery of the eyeglass lens.

[0075] <Transporting processed lenses to the tray: S9> For example, the control unit 50 of the eyeglass lens processing device 300 transmits a processing start signal to the host PC 60. For example, upon receiving the processing start signal, the host PC 60 controls the eyeglass lens transporting device 200. For example, the control unit 40 of the eyeglass lens transporting device 200 transports the processed left lens LEl held by the second lens holding portion 236 of the transfer unit 230 back to the tray 400 while the right lens LEr is being processed.

[0076] 16 is a front view showing a change in the orientation of the left lens LE1 by the transfer unit 230. For example, the control unit 40 causes the rotation drive unit (motor) 233 of the transfer unit 230 to rotate the base unit 232 by 180 degrees in the direction of arrow E. As a result, the second lens holding unit 236 moves to a position facing the holding unit 216 provided on the first arm 215 of the first moving unit 210 (i.e., a first position where the holding unit 216 can hold the processed left lens LE1).

[0077] For example, the control unit 40 moves the first arm 215 to a first position where the second lens holding portion 236 of the transfer unit 230 and the holding portion 216 provided on the first arm 215 of the first moving unit 210 are coaxial (substantially coaxial). For example, the control unit 40 lowers the first arm 215 and starts suction by the holding portion 216, thereby causing the processed left lens LEl to be adsorbed and held by the holding portion 216. For example, the control unit 40 raises the first arm 215 and rotates it 90 degrees in the direction opposite to the arrow B (see FIG. 11). Furthermore, for example, the control unit 40 moves the first moving base 243 so that it coincides (substantially coincides) with a predetermined position of the left lens LEl on the lens placement stand 403 on the tray 400. For example, the control unit 40 lowers the first arm 215 and releases the adsorption of the left lens LEl by the holding portion 216. This allows the left lens LE1 to be transported to a predetermined position on the lens placement table 403 on the tray 400.

[0078] When the processing of the right lens LEr is completed, the control unit 50 of the eyeglass lens processing apparatus 300 transmits a processing end signal to the host PC 60, and causes the right lens LEr to be transported to a predetermined position on the tray 400 in the same manner as the left lens LEl. After that, the transport and processing of the lenses LE placed on each tray 400 are automatically repeated.

[0079] <Example of transformation> In the eyeglass lens transport device of this embodiment, the lens LE is placed on the tray 400 as an example, but the present invention is not limited to this. For example, the lens LE may be placed directly on the conveyor 101 of the tray transport device 100. In this case, for example, it is no longer necessary to transport the left and right lenses separately, and it is no longer necessary to place the lens LE on the tray, thereby reducing the burden on the operator.

[0080] In the eyeglass lens transport device of this embodiment, the transfer unit 230 has two lens holding parts: a first lens holding part 234 that holds the lens LE before processing, and a second lens holding part 236 that holds the lens LE after processing. However, there may be three or more lens holding parts. As an example, there may be two sets of lens holding parts, one for holding the lens LE before processing, and one for holding the lens LE after processing. This allows for smooth transfer of the eyeglass lenses, for example, ensuring a place for the eyeglass lenses to wait for the next operation, even when processing multiple eyeglass lenses.

[0081] In the eyeglass lens transport device of this embodiment, a configuration has been described in which the lens holding shaft of the transfer unit 230 and the lens chuck shaft of the eyeglass lens processing device are held to the lens LE by the attractive force of the magnetic force generating unit, but this is not limiting. For example, the lens holding shaft of the transfer unit 230 and the lens chuck shaft of the eyeglass lens processing device may hold the lens LE by adsorbing the lens surface of the lens LE. For example, the lens holding unit may switch between holding and releasing the lens LE by switching between adsorbing and releasing the adsorption of the surface of the lens LE. In this case, there is no need to provide an iron core (not shown) in the cup CU, and a simple configuration can be achieved.

[0082] In the eyeglass lens transport device of this embodiment, the host PC 60 has been described as starting preparation for the next lens processing in step S7 by receiving a processing start signal, but this is not limited to this. For example, the host PC 60 may start preparation for the next lens processing when it receives a signal indicating that the transfer of the lens LE to the second moving unit 220 has been completed, a signal indicating that transport to the eyeglass lens processing device 300 has been completed, or the like. In other words, the transfer unit 230 may be configured to transition to the next operation at the point when the transfer of the lens LE from the transfer unit 230 to the second moving unit 220 has been completed. This makes it possible to shorten the standby time of the transfer unit 230, which further facilitates improving work efficiency.

[0083] In the eyeglass lens transport device of this embodiment, the lens transport for one tray has been described as an example, but the present invention is not limited to this. For example, when lenses are processed and transported on multiple trays, the position of the tray may be moved before the second lens of the left and right lenses is processed.

[0084] 17 is a plan view showing the movement of the tray position during lens processing. For example, in step S10, when the host PC 60 receives a processing start signal for the right lens LEr, it controls the tray transport device 100 before transporting the left lens LEl to the tray. The control unit 30 of the tray transport device 100 drives the belt conveyor 101 to transport the tray 400A being processed in the feed direction (the direction of arrow A in FIG. 1).

[0085] For example, the tray conveying device 100 may be provided with a mechanism 404 (e.g., a stopper) for temporarily stopping the tray 400A being processed at a predetermined position Q2. Note that if the trays are arranged at equal intervals, the mechanism 404 for temporarily stopping the tray 400A at the predetermined position Q2 may not be provided. Furthermore, the control unit 30 stops the drive of the tray 400B for next lens processing when it reaches the predetermined position Q1. At this time, the ID tag reader 402 reads the job number on the ID tag attached to the tray 400B for next lens processing, and inputs the signal to the host PC 60. The host PC 60 transmits data related to the processing of the lens LE corresponding to this job number to the eyeglass lens processing device 300 and registers it as the next job data.

[0086] For example, when the host PC 60 confirms that the next work data has been registered, it controls the eyeglass lens transporting device 200. For example, while the right lens LEr is being processed, the control unit 40 of the eyeglass lens transporting device 200 transports the processed left lens LEl held by the second lens holding unit 236 of the transfer unit 230 to the tray 400B that has moved to a predetermined position Q2. For example, the control unit 40 transports the processed left lens LEl by the first moving unit 210 so that the left lens LEl matches (or substantially matches) a predetermined position on the lens placing table 403 on the tray 400A based on the predetermined position Q2 where the left lens LEl is to be placed.

[0087] Next, similarly to step S7, the control unit 40 of the eyeglass lens transport device 200 makes the transfer unit 230 prepare the left lens LEl on the tray 400B to be processed next. For example, the control unit 40 makes the first moving unit 210 transport the left lens LEl from the tray 400B, and makes the first lens holding unit 234 of the transfer unit 230 hold the left lens LEl to be processed next, and make it wait at the first position.

[0088] For example, after completing processing of the right lens LEr, while processing the left lens LEl on the tray 400B to be processed next, the control unit 30 transports the processed right lens LEr using the first moving unit 210 so that it matches (approximately matches) the predetermined position on the lens mounting stand 403 on the tray 400A where the right lens LEr is to be placed, based on the predetermined position Q2.

[0089] In this way, when lenses are processed and transported on multiple trays, by moving the position of the tray where lens processing is completed, the lenses to be placed on the next tray that has been placed in advance can be held in the transfer unit, which makes it easier to further improve work efficiency, such as by shortening transport time. [Explanation of symbols]

[0090] 10 Eyeglass lens processing system 100 Tray conveying device 200 Eyeglass lens transport device 210 First Mobile Unit 220 Second Mobile Unit 230 Delivery Unit 300 Eyeglass lens processing equipment 400 trays

Claims

1. A spectacle lens transport device for transporting spectacle lenses, a first moving unit that moves the eyeglass lens between a standby position of the eyeglass lens before and / or after processing by the eyeglass lens processing device and a first position different from the standby position of the eyeglass lens; a second moving unit that moves the eyeglass lens between a processing position of the eyeglass lens in the eyeglass lens processing device and a second position different from the processing position of the eyeglass lens; a transfer unit that transfers the eyeglass lens between the first position and the second position; An eyeglass lens transport device comprising:

2. 2. The eyeglass lens transport device according to claim 1, 1. A spectacle lens transport device, wherein each of the first moving unit and the second moving unit transports the spectacle lens while maintaining the direction in which the lens surface of the spectacle lens faces.

3. 3. The eyeglass lens transport device according to claim 2, a direction in which the lens surface of the eyeglass lens faces when the eyeglass lens is waiting at the waiting position is different from a direction in which the lens surface of the eyeglass lens faces when the eyeglass lens is installed at the processing position of the eyeglass lens processing device, The transfer unit comprises: a lens holding portion for holding the eyeglass lens; a lens direction changing unit that changes the direction in which the lens surface of the eyeglass lens held by the lens holding unit faces; An eyeglass lens transport device comprising:

4. 4. The eyeglass lens transport device according to claim 3, The transfer unit comprises: a rotatable base portion having the lens holding portion; a rotation drive unit that rotates the base unit around an axis; Equipped with A spectacle lens transport device characterized in that the base portion rotates around an axis, thereby changing the direction of the lens surface of the spectacle lens held by the lens holding portion and transferring the spectacle lens between the first position and the second position.

5. 5. The eyeglass lens transport device according to claim 3, The eyeglass lens transport device is characterized in that the transfer unit includes a plurality of the lens holding portions.

6. 6. The eyeglass lens transport device according to claim 3, A cup to which a lens chuck shaft of the eyeglass lens processing device is attached is attached to the eyeglass lens, A spectacle lens transport device characterized in that a magnetic force generating unit that generates magnetic force is provided in at least one of the lens holding unit of the transfer unit and the cup, and the spectacle lens is held in the lens holding unit of the transfer unit by the attractive force of the magnetic force generating unit.

7. An eyeglass lens processing system for processing a peripheral edge of an eyeglass lens, an eyeglass lens processing device that processes the periphery of the eyeglass lens held by a lens holding shaft with a processing tool; a first moving unit that moves the eyeglass lens between a standby position of the eyeglass lens before and / or after processing and another position; a second moving unit that moves the eyeglass lens between a processing position of the eyeglass lens in the eyeglass lens processing device and another position; a transfer unit that transfers the eyeglass lens between the first moving unit and the second moving unit; A control unit; Equipped with The control unit controlling the first moving unit, the second moving unit, and the transfer unit to transport the eyeglass lens from the standby position of the eyeglass lens to the eyeglass lens processing device and hold the eyeglass lens on a lens holding shaft of the eyeglass lens processing device; Controlling the eyeglass lens processing device to process the periphery of the eyeglass lens with a processing tool; After the eyeglass lens processing device has completed processing of the eyeglass lens, the eyeglass lens processing system controls the first moving unit, the second moving unit, and the transfer unit to move the eyeglass lens for which processing has been completed to the standby position.

Images