Large-sized processed waste separation device and spectacle lens processing system

Abstract

To provide a large-sized processed waste separation device capable of efficiently separating processing waste from water and a spectacle lens processing system.SOLUTION: The large-sized processed waste separation device used in a spectacle lens processing system including a spectacle lens processing device for processing a peripheral edge of a spectacle lens with a processing tool and a grinding water processing device for separating processing wastes contained in drain water drained out of the spectacle lens processing device from water, comprises a drive mechanism installed in a drain passage which guides drain water from the spectacle lens processing device to the grinding water processing device to separate large-sized processing wastes larger than small-sized processing wastes made to flow into the grinding water processing device, from the drain water before the drain water reaches the grinding water processing device, by driving with a drive part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a large chip separating device that separates at least a portion of chips discharged from an eyeglass lens processing device from an effluent, and an eyeglass lens processing system equipped with the large chip separating device. [Background technology]

[0002] There is known an eyeglass lens processing device that processes the periphery of an eyeglass lens using a processing tool (for example, a grindstone, a cutter, etc.) to fit the shape of the eyeglass frame (see, for example, Patent Document 1). In addition, since processing debris generated during lens periphery processing is discharged from the eyeglass lens processing device together with grinding water, there is known a grinding water treatment device such as a centrifuge that separates the processing debris from the water and processes them (see Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-177234 A [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-061518 Summary of the Invention [Problem to be solved by the invention]

[0004] When processing the periphery of an eyeglass lens, a cutter or other tool may be used to roughly process the lens, resulting in large cuts. If large processing debris (e.g., lens fragments) accumulates inside the dehydration tank of a grinding water treatment device, the filtering ability of the device may be reduced. Furthermore, for example, if large processing debris is discharged into the dehydration tank, the device may be damaged. This requires workers to frequently remove the processing debris from the dehydration tank and place it in a disposal bag or the like for disposal, which is both time-consuming and inefficient.

[0005] In view of the above problems, the present disclosure has as its technical object to provide a large processing debris separating device and an eyeglass lens processing system that can efficiently separate processing debris and water. [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 large chip separation device according to a first aspect of the present disclosure is a large chip separation device used in an eyeglass lens processing system including an eyeglass lens processing device that processes the periphery of an eyeglass lens using a processing tool, and a grinding water treatment device that separates the chips and water contained in wastewater discharged from the eyeglass lens processing device, and is characterized in that the large chip separation device is installed in a drainage path that leads the wastewater from the eyeglass lens processing device to the grinding water treatment device, and is driven by a drive unit to separate large chips that are larger than the small chips that are allowed to flow into the grinding water treatment device from the wastewater before the wastewater reaches the grinding water treatment device. (2) A spectacle lens processing system according to a second aspect of the present disclosure is characterized by comprising: a spectacle lens processing device that processes the periphery of a spectacle lens using a processing tool; a grinding water treatment device that separates water from processing chips contained in wastewater discharged from the spectacle lens processing device; and a large processing chip separation device that is installed in a drainage path that leads wastewater from the spectacle lens processing device to the grinding water treatment device and is driven by a drive unit to separate large processing chips that are larger than the small processing chips that are allowed to flow into the grinding water treatment device from the wastewater before the wastewater reaches the grinding water treatment device. [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 large chip separating device. [Figure 3] FIG. 2 is an internal view of a separation chamber of the large machining chip separation device. [Figure 4] FIG. 2 is a diagram showing a drive mechanism of the large chip separating device. [Figure 5] FIG. 2 is a block diagram showing a control system of the eyeglass lens processing system. [Figure 6] 10A to 10C are diagrams illustrating an example of rough processing of a lens LE using a rough processing tool. [Figure 7] FIG. 1 is a diagram illustrating separation of large processing waste and water. [Figure 8] FIG. 10 is a diagram showing a configuration in which a large chip retention section and a discharged material receiving section are integrated. DETAILED DESCRIPTION OF THE INVENTION

[0008] <Summary> An overview of the large processing debris separation device according to this embodiment will be described. The items classified in < > below can be used independently or in conjunction with each other.

[0009] The large chip separation device of the present disclosure is used in an eyeglass lens processing system. The eyeglass lens processing system includes an eyeglass lens processing device and a grinding water treatment device. The eyeglass lens processing device processes the periphery of eyeglass lenses with a processing tool. The grinding water treatment device separates the chips and water contained in wastewater discharged from the eyeglass lens processing device. The large chip separation device is installed in a drainage path that leads wastewater from the eyeglass lens processing device to the grinding water treatment device. The large chip separation device is equipped with a drive mechanism that is driven by a drive unit to separate large chips that are larger than the small chips that flow into the grinding water treatment device from the wastewater before the wastewater reaches the grinding water treatment device.

[0010] For example, when roughly cutting the periphery of an eyeglass lens using a cutter as a processing tool, large cuttings of the eyeglass lens can occur, resulting in the generation of large chips (such as lens fragments). When large chips are discharged into the grinding water treatment device along with the wastewater, they quickly accumulate inside the dewatering tank of the grinding water treatment device, reducing the device's filtering capacity. Furthermore, if large chips get mixed into the dewatering tank, they may damage the grinding water treatment device. This requires workers to frequently manually remove and dispose of the chips, which is both time-consuming and inefficient. In contrast, the large chip separation device disclosed herein uses a drive unit and drive mechanism to automatically separate large chips from the wastewater before the wastewater reaches the grinding water treatment device. Therefore, even when large chips are generated, both large and small chips are appropriately separated from the wastewater.

[0011] In conventional eyeglass lens processing devices, water is rarely used when processing eyeglass lenses using a cutter. However, using water when roughly processing eyeglass lenses using a cutter, as with the use of a grinding wheel, makes it easier to suppress adverse effects such as heat generation during processing. Furthermore, using water also makes it possible to clean processing debris adhering to the cutter and processing debris scattered within the processing chamber. Furthermore, employing the technology of the present disclosure makes it easier to properly separate large processing debris generated by rough processing using the cutter. Therefore, the technology of the present disclosure is useful, for example, when water is used when roughly processing eyeglass lenses using a cutter. However, the technology of the present disclosure can also be applied when a cutter is not used for rough processing.

[0012] The large chip separating device may further include a discharge receiver, a large chip retention unit, and a removal unit. Discharged material, including chips and wastewater, discharged from the eyeglass lens processing device is input into the discharge receiver. The large chip retention unit allows small chips and water from the discharge input into the discharge receiver to pass through to the grinding water treatment device, while preventing large chips from passing through, thereby causing the large chips to remain in the discharge receiver. The removal unit removes the large chips that have remained in the discharge receiver.

[0013] In this case, large chips remain in the waste receiving section and are then automatically removed from the waste receiving section by the removal unit. Meanwhile, small chips and much of the water pass through the large chip retention section and head toward the grinding water treatment device. Therefore, large chips are automatically and appropriately removed from the waste. Furthermore, it is easier to miniaturize the large chip separation device compared to separating large chips using a belt conveyor or similar device. Large chips (e.g., lens fragments) are often sharp. Therefore, if a worker manually removes the large chips, there is a risk of injury during the removal process. In contrast, by having the removal unit remove the large chips from the waste receiving section, the large chips are more easily removed safely and efficiently.

[0014] The chip passage prevention portion may have a plurality of through holes that are large enough to prevent at least large chips from passing through. In this case, the large chips will be properly retained in the waste receiving portion.

[0015] The eyeglass lens processing device may use a cutter to perform at least rough processing, which is performed before finishing processing to finish the eyeglass lens into a target shape. When rough processing is performed using a cutter, large processing chips are likely to be generated. Therefore, when rough processing of eyeglass lenses is performed using a cutter, using the large processing chip separation device of the present disclosure makes it easier to properly remove the processing chips from the discharged material.

[0016] The upper surface of the waste receiving section may be inclined downward toward the drainage path extending to the grinding water treatment device, thereby moving small chips and water introduced onto the upper surface in a direction toward the grinding water treatment device. The large chip retention section may be arranged in a circumferential direction surrounding the outer periphery of the upper surface of the waste receiving section, at least in a direction facing the drainage path extending to the grinding water treatment device. The removal section may remove large chips by moving the large chips retained in the waste receiving section in a direction different from the drainage path extending to the grinding water treatment device.

[0017] When separating large chips from water, it is desirable to remove as much water as possible from the large chips, since water also adheres to the large chips. By tilting the upper surface of the waste receiver and guiding the small chips and water toward the grinding water treatment device by gravity, the large chips are removed from the waste receiver with as much water removed as possible. As a result, the large chips are more easily separated from the waste.

[0018] The specific configurations of the waste receiving section and the large chip retention section may be changed. For example, the waste receiving section may also serve as the large chip retention section. In other words, the waste receiving section and the large chip retention section may be integrated. As an example, the waste receiving section may be formed with a plurality of through holes or slits that are large enough to prevent large chips from passing through. For example, small chips and water discharged from the eyeglass lens processing device pass through the waste receiving section, allowing the large chips to be retained in the waste receiving section, and the large chips to be easily separated from the discharged material.

[0019] The waste receiver may rotate about an axis that intersects with the horizontal plane to move large chips that have accumulated on the upper surface. In other words, the waste receiver may be one of the drive mechanisms.

[0020] In this case, the removal unit can remove the large chips from the discharged material by removing the large chips that have moved to a predetermined area by the rotation of the waste receiving unit, without having to remove the large chips from the entire area of the waste receiving unit where the large chips accumulate. This makes it easy to simplify the configuration of the removal unit.

[0021] Furthermore, when the upper surface of the waste receiving section is tilted, large chips may also move downward along with the water. However, by rotating the waste receiving section, the large chips that have once moved downward move to a position where they can be removed by the removal section. As a result, the large chips can be more easily removed properly.

[0022] However, the waste receiving portion does not have to be rotated. Even in this case, the large machining chips remaining in the waste receiving portion can be removed by the removal mechanism, and the large machining chips can be properly separated from the waste.

[0023] The removal unit may include, as one of the drive mechanisms, an operating unit that is rotated by the drive unit to scrape out large chips retained in the waste receptacle to the outside of the waste receptacle, making it easier to remove the large chips from the waste receptacle appropriately with high accuracy.

[0024] However, the removal unit may be fixed and not driven. As an example, if the waste receiving unit rotates to move large chips that have accumulated on its upper surface, the fixed removal unit may guide the direction of movement of the large chips moved by the waste receiving unit outward, thereby removing the large chips from the waste receiving unit. Note that a gap may be provided between the waste receiving unit and the fixed removal unit. Even in this case, the amount of water removed together with the large chips is reduced compared to when no gap is provided.

[0025] The large chip separation device may have a discharge port for discharging large chips on a side of the periphery of the waste receiving section that is different from the drainage path side that extends to the grinding water treatment device. The removal section may remove the large chips by scraping them out of the waste receiving section and into the discharge port. In this case, the large chips removed by the removal section are accumulated in a predetermined location. This makes it easier to dispose of the accumulated large chips.

[0026] When both the waste receiving part and the working part of the remover are rotated, a gear or a belt may be used to rotate both the waste receiving part and the working part with a single drive part, which further simplifies the device configuration.

[0027] Furthermore, when both the waste receiving portion and the working portion of the removal portion are rotated, the rotation speed of the working portion of the removal portion may be made faster than the rotation speed of the waste receiving portion. In this case, the possibility that large processing chips remaining in the waste receiving portion will remain in the waste receiving portion without being removed by the working portion is appropriately reduced. Note that when both the waste receiving portion and the working portion are rotated by a single drive portion, the ratio of the rotation speed of the waste receiving portion to the rotation speed of the working portion of the removal portion may be adjusted using gears or the like. In this case, the rotation speeds of the two drive mechanisms are appropriately adjusted while using a single drive portion.

[0028] The drive unit may be started before the roughing of the periphery of the eyeglass lens of the eyeglass lens processing device begins, and stopped after the roughing is completed. Large chips are likely to be generated when the periphery of the eyeglass lens is roughly processed. Therefore, by stopping the drive unit except during the roughing, the wastewater from the eyeglass lens processing device can be more easily discharged into the grinding water treatment device. As a result, the wastewater can be efficiently separated from the chips.

[0029] <Example> An example of the large chip separating device according to this embodiment will be described.

[0030] <Appearance of the device> FIG. 1 is an external view of an eyeglass lens processing system 10. The eyeglass lens processing system 10 of this embodiment includes an eyeglass lens processing apparatus 100, a large chip separation device 200, a grinding water treatment device 300, a dust box 400, a mounting table 500, and the like. The eyeglass lens processing apparatus 100 processes the periphery of an eyeglass lens using a processing tool. The large chip separation device 200 separates large chips, which are larger than the small chips that flow into the grinding water treatment device, from wastewater before the wastewater reaches the grinding water treatment device. The grinding water treatment device 300 separates the chips (in this embodiment, the small chips mentioned above) and water contained in the wastewater discharged from the eyeglass lens processing apparatus 100, and pumps the filtered water into the eyeglass lens processing apparatus 100. The dust box 400 is a box that collects the large chips separated by the large chip separation device 200. The mounting table 500 is a mounting table on which the eyeglass lens processing apparatus 100 is placed. For example, the large chip separator 200, the grinding water treatment device 300, and the dust box 400 are disposed below the mounting table 500.

[0031] <Eyeglass lens processing equipment> In this embodiment, an eyeglass lens processing apparatus that processes the periphery of an eyeglass lens with a processing tool while holding the eyeglass lens with a lens chuck shaft will be described as an example. The eyeglass lens processing apparatus 100 includes a housing 101, a monitor 102, a lens processing mechanism unit 110, etc.

[0032] The housing 101 is an exterior cover that houses components such as a processing mechanism unit 110, a lens refractive surface shape measuring unit 160, a nozzle 170, and a processing chamber 180, which will be described later. The housing 101 may be provided with a window (not shown) for inserting and removing an eyeglass lens into and from the lens processing mechanism unit 110. The monitor 102 in this embodiment is a display with a touch panel function. That is, in this embodiment, the monitor 102 functions as an operation unit (controller). Note that the monitor 102 does not have to be a touch panel type, and the monitor 102 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.

[0033] The processing mechanism section 110 includes a lens chuck shaft 120, a carriage 130, a processing tool unit 140, a grindstone 150, and the like.

[0034] The lens LE is held by a lens chuck shaft (lens rotation shaft) 120. The lens chuck shaft 111 includes a left chuck shaft 120L and a right chuck shaft 120R.

[0035] The carriage 130 holds the lens chuck shaft (lens rotation shaft) 120. By driving a motor 131, the carriage 130 moves the lens chuck shaft 120 relative to the processing tool unit 140 and the grindstone 150. The carriage 130 is composed of a left arm 132L and a right arm 132R. The left chuck shaft 120L of the lens chuck shaft 120 is rotatably and coaxially held by the left arm 132L of the carriage 130. The right chuck shaft 120R of the lens chuck shaft 120 is rotatably and coaxially held by the right arm 132R of the carriage 130. A motor 133 is attached to the right arm 132R, and when the motor 133 is driven, a rotation transmission mechanism such as a gear (not shown) rotates. The left and right chuck shafts 120L and 120R rotate synchronously with each other via the rotation transmission mechanism. Further, a motor (not shown) is attached to the right arm 132R, and when the motor (not shown) is driven, the right chuck shaft 120R moves toward the left chuck shaft 120L, thereby holding the lens LE between the left and right chuck shafts 120L and 120R.

[0036] The processing tool unit 140 processes the peripheral edge of the lens clamped by the lens chuck shaft 120. For example, the processing tool unit 140 is disposed behind the carriage unit 130. The processing tool unit 140 includes a motor 141, a roughing tool 142, a chamfering tool 143, a holding unit 144, a rotation shaft 145, a first processing tool rotation shaft 146, a second processing tool rotation shaft 147, etc. The motor 141 moves the processing tool unit 140 to a processing position where the peripheral edge of the lens LE is processed. The roughing tool 142 roughly processes the peripheral edge of the lens LE. For example, a cutter is used as the roughing tool 142 in this embodiment, but an end mill may also be used. The chamfering tool 143 chamfers the corners of the edge of the lens LE. For example, a grinding wheel is used as the chamfering tool 143. The holder 144 is connected to the roughing tool 142, the chamfering tool 143, and the rotating shaft 145 and holds the roughing tool 142 and the chamfering tool 143. The rotating shaft 145 rotates the holder 144 by a motor (not shown). The first processing tool rotating shaft 146 is connected to the chamfering tool 143. The first processing tool rotating shaft 146 is rotatably held inside the rotating shaft 145. Furthermore, the chamfering tool 143 rotates when the first processing tool rotating shaft 143 is rotated by a motor (not shown). The second processing tool rotating shaft 147 is connected to the roughing tool 142. The second processing tool rotating shaft 147 is connected to the motor (not shown) of the first processing tool rotating shaft 146 via a connecting member (not shown). In this embodiment, the second processing tool rotating shaft 147 is located at a position different from the drive shaft of the motor (not shown) of the first processing tool rotating shaft 146. That is, the rotation of the drive shaft of the motor (not shown) of the first processing tool rotation shaft 146 is transmitted to the second processing tool rotation shaft 147 via a one-way clutch (not shown), a bearing (for example), etc. As a result, the rotation of the motor (not shown) of the first processing tool rotation shaft 146 is transmitted to the second processing tool rotation shaft 147, and the rough processing tool 142 is rotated.

[0037] The grindstone 150 is used as a processing tool for grinding the lens LE after rough processing. The grindstone 150 is attached to a grindstone rotation shaft 151. The grindstone rotation shaft 151 is rotated by a motor 152. The peripheral edge of the lens clamped by the lens chuck shaft 120 is processed by being pressed against the grindstone 150, which is rotated by the drive of the motor 152.

[0038] Furthermore, a lens refractive surface shape measuring unit 160 is disposed inside the eyeglass lens processing apparatus 100. The lens refractive surface shape measuring unit 160 measures the shape of the refractive surface (the front and rear surfaces of the lens) of the lens LE held by the lens chuck shaft 120.

[0039] The configurations of the processing mechanism unit 110 and the lens refractive surface shape measuring unit 160 can be those described in Japanese Patent Application Laid-Open No. 2017-177234, so please refer to this for details.

[0040] Furthermore, during peripheral processing of the lens LE, the grinding portion of the processing tool is cooled by spraying water from the nozzle 170 onto the lens LE and the grinding portion of the processing tool. Furthermore, processing debris generated during processing is washed away by the water to the bottom of the processing chamber 180. A drainage hose 190, which is a drainage path through which wastewater containing processing debris is discharged, is connected to the bottom of the processing chamber 180.

[0041] <Large processing waste separator> The configuration of the large machining chip separation device 200 will be described with reference to Fig. 2 to Fig. 4. Fig. 2 is an external view of the large machining chip separation device 200. The large machining chip separation device 200 includes a housing 201, a separation chamber 202, an inlet 203, a window 204, a drainage port 205, a machining chip discharge port 206, and the like.

[0042] The housing 201 is an exterior cover that houses each component of the large chip separation device 200. The separation chamber 202 is equipped with components for separating large chips, which are larger than the small chips that flow into the grinding water treatment device, from wastewater containing small chips. The inlet 203 is connected to a drain hose 190 through which wastewater containing small chips is discharged from the eyeglass lens processing device 100. The window 204 is a window through which an operator can check the inside of the separation chamber 202 of the housing 201, which will be described later. The drain outlet 205 is connected to a drain hose 301 (see FIG. 1 ) of the grinding water treatment device. The wastewater containing small chips is discharged through the drain hose 301 to the grinding water treatment device 300. Large chips discharged when the periphery of the eyeglass lens is processed with a processing tool are discharged through the chip discharge outlet 206 to a dust box 400.

[0043] Figure 3 is an internal view of the separation chamber 202 of the large chip separation device 200. Figure 3(a) is a view of the upper part of the housing 201 (the eyeglass lens processing device 100 side) seen from the lower left. Figure 3(b) is a view of the lower part of the housing 201 (the grinding water treatment device 300 side) seen from the upper right. The separation chamber 202 is provided with a large chip retention section 210, a discharged material receiving section 2, a removal section 230, a drainage path 240, a chip discharge path 250, a drive section 260, etc.

[0044] The large chip retention section 210 allows small chips and water to pass through to the grinding water treatment device 300 from among the waste materials fed into the waste receiving section 220, while preventing large chips from passing through, thereby retaining the large chips in the waste receiving section 220. The large chip retention section 210 is disposed in a circumferential direction surrounding the outer periphery of the upper surface of the waste receiving section 220, at least in a direction facing the drainage path 240 extending to the grinding water treatment device 300. In other words, the large chip retention section 210 is disposed in a meridian direction based on the rotation axis 222 of the waste receiving section 220, which will be described later, at least on the side of the drainage path 240 extending to the drain outlet 205. In this embodiment, the large chip retention section 210 is configured integrally with the upper part of the housing 201. Of course, the large chip retention section 210 may also be configured independently of the upper part of the housing 201.

[0045] The large chip retention section 210 includes a drainage passage 211, retention sections 212, etc. The drainage passage 211 passes drainage water containing small chips toward the drainage path 240. The drainage passage 211 is arranged in a semicircular shape and at equal intervals along the conveyor 221 of the waste material receiving section 220. The retention sections 212 retain large chips on the conveyor 221 of the waste material receiving section 220. Like the drainage passage 211, the retention sections 212 are arranged in a semicircular shape and at equal intervals along the conveyor 221 of the waste material receiving section 220. The retention sections 212 have a trapezoidal shape that widens toward the drainage path 240, and the drainage passage 211 is configured to gradually narrow toward the drainage port 205. This reduces the possibility of large chips getting caught in the drainage passage 211 when the large chips retain therein.

[0046] The retaining portions 212 may be arranged at intervals that do not allow large chips to pass through. Therefore, the large chip retaining portions 210 are not limited to the configuration of this embodiment. For example, the large chip retaining portions 210 may be formed with a plurality of through holes that are not large enough to allow large chips to pass through.

[0047] The waste receiver 220 receives waste materials including processing chips and wastewater discharged from the eyeglass lens processing apparatus 100. The waste receiver 220 is disposed below the drain hose 190 connected to the eyeglass lens processing apparatus 100. The upper surface of the waste receiver 220 is disposed with an inclination downward toward the drain path 240 extending to the grinding water treatment device 300, so that small processing chips and water fed onto the upper surface of the waste receiver 220 move by gravity in the direction toward the grinding water treatment device 300.

[0048] The waste receiving section 220 includes a conveyor 221, a rotating shaft 222, etc. The conveyor 221 transports the retained large chips to the removal section 230. The conveyor 221 is rotatably supported by the rotating shaft 222. The conveyor 221 rotates around the rotating shaft 222 to transport the large chips in a direction different from the drainage path 240. This allows the conveyor 221 to transport the large chips to the removal section 230 while draining excess water from the large chips. The rotating shaft 222 is rotated around an axis intersecting the horizontal plane by a motor 261 of a drive section 260 (described later) via a first drive mechanism 262.

[0049] The removal unit 230 removes large chips by moving them in a direction away from the drainage path 240 extending to the grinding water treatment device 300. The removal unit 230 includes an action unit 231 and a rotating shaft 232. The action unit 231 discharges large chips that have accumulated on the conveyor 221 of the waste receiving unit 220 to the chip discharge port 206 via the chip discharge path 250. In this embodiment, the action unit 231 is composed of two plates. Of course, the action unit 231 may be composed of two or more plates, or may be a single plate. The shape of the action unit 231 is not limited to a plate shape. The rotating shaft 232 is rotated by a motor 261 of a drive unit 260 (described later) via second drive mechanisms 262 and 263.

[0050] The drainage path 240 guides the wastewater containing small chips that has passed through the large chip retention area 210 to the drainage outlet 205. The drainage path 240 may be inclined toward the drainage outlet 205. In this case, the wastewater containing small chips flows on the drainage path 240 toward the drainage outlet 205.

[0051] The chip discharge path 250 guides large chips discharged from the conveyor 221 of the waste receiving unit 220 by the remover 230 to the chip discharge outlet 206. The chip discharge path 250 may be inclined toward the chip discharge outlet 206. In this case, the large chips are more likely to fall into the chip discharge outlet 206.

[0052] FIG. 4 is a diagram showing the drive unit 260 of the large chip separation device 200. The drive unit 260 includes a motor 261, a first drive mechanism 262, a second drive mechanism 263, and the like. The motor 261 rotates the rotation shaft 222 of the waste receiver 220 and the rotation shaft 232 of the remover 230 via the first drive mechanism 262 and the second drive mechanism 263. That is, when the motor 261 rotates in the direction of arrow A, the first drive mechanism 262 rotates in the direction of arrow B, and the second drive mechanism 263 rotates in the direction of arrow C. In this embodiment, the first drive mechanism 262 and the second drive mechanism 263 are configured with mechanisms such as belts, pulleys, and gears. Note that in this embodiment, the motor 261 rotates the rotation shaft 222 of the waste receiver 220 at a speed that prevents wastewater discharged from the eyeglass lens processing apparatus 100 from flowing back toward the chip discharge port 206. Furthermore, the first drive mechanism 262 and the second drive mechanism 263 are configured so that the rotation shaft 232 of the remover 230 rotates faster than the rotation shaft 222 of the waste receiver 220.

[0053] <Grinding water treatment equipment> 1, the grinding water treatment device 300 separates the wastewater discharged from the large chip separation device 200 into chips and water. The grinding water treatment device 300 guides the separated water to the nozzle 170 of the eyeglass lens processing device 100 via a water supply hose 308. Note that the water separated from the chips by the grinding water treatment device 300 may not necessarily be completely separated from the chips. The grinding water treatment device 300 includes a drain hose 301, a filter 302, a tank 303, a lid 304, a water intake hose 305, a water intake filter 306, a water intake pump 307, a water supply hose 308, etc.

[0054] The drain hose 301 is connected to the drain outlet 205 of the large chip separation device 200. In other words, the drain outlet 205 of the large chip separation device 200 serves as an inlet for introducing wastewater containing small chips discharged from the large chip separation device 200 into the grinding water treatment device 300. The drain hose 301 extends to the tank 303 side of the grinding water treatment device 300. The filter 302 is detachably attached to the end of the drain hose 301 extending into the tank 303. The filter 302 also serves as a bag for collecting chips. The tank 303 stores water. The lid 304 covers the top of the tank 303. The suction hose 305 is attached to the lid 304 and extends downward. The suction filter 306 has a mesh shape. The suction filter 306 is attached to the lower end of the suction hose 305. The upper end of the suction hose 305 is connected to a suction pump 307. A water supply hose 308 is connected to the water suction pump 307. The other end of the water supply hose 308 is connected to the nozzle 170 of the eyeglass lens processing apparatus 100.

[0055] Wastewater containing small chips discharged from the large chip separation device 200 is introduced into a tank 303 via a drainage hose 301 of the grinding water treatment device 300. The small chips are collected by a filter 302 attached to the end of the drainage hose 301 extending into the tank 303. Water stored in the tank 303 is taken in from the tank 303 side via a water suction hose 305 by driving a water suction pump 307. The water is guided to a nozzle 170 of the eyeglass lens processing device 100 via a water supply hose 308 and sprayed into the processing chamber 180 by the nozzle 170. Furthermore, the discharged material (wastewater containing chips) discharged from the eyeglass lens processing device 100 is separated into large chips and wastewater containing small chips by the large chip separation device 200, and the wastewater containing small chips is discharged to the grinding water treatment device 300. In this way, the eyeglass lens processing system 10 repeats the above-mentioned circulation. Note that the grinding water treatment device 300 of this embodiment is not limited to the above-mentioned configuration. For example, the grinding water treatment device may be a centrifugal separator that separates water from machining waste. Also, for example, the drain hose 301 may be connected to a water intake pump equipped with a filter function.

[0056] <Control unit> FIG. 5 is a block diagram showing a control system of the eyeglass lens processing system 10. The eyeglass lens processing system 10 according to the present disclosure includes a control unit 60 for controlling the operation of the eyeglass lens processing apparatus 100, the large chip separation apparatus 200, and the grinding water treatment apparatus 300. Of course, a control unit for controlling the operation of the eyeglass lens processing apparatus 100, a control unit for controlling the operation of the large chip separation apparatus 200, and a control unit for controlling the operation of the grinding water treatment apparatus 300 may be provided separately. The control unit 60 controls the driving of motors and other components included in each component. The control unit 60 may be realized by a general CPU (processor), ROM, RAM, etc. The control unit 60 also includes a memory 70 as a storage unit. The memory 70 may be a non-transitory storage medium capable of retaining its contents even when the power supply is cut off. For example, a hard disk drive, a flash ROM, a removable USB memory, etc. may be used as the memory 70.

[0057] <Control action> The operation of the large chip separating device 200 having the above-described configuration will be described.

[0058] <Preparation before eyeglass lens processing> For example, an operator acquires the contour shape of the rim of an eyeglass frame measured using a lens shape measuring device (not shown). For example, the lens shape data may be acquired by retrieving data stored in the memory 70. For example, after acquiring the lens shape data, the operator sets (inputs) processing conditions for processing the periphery of the lens LE using the monitor 102. For example, the control unit 60 creates layout data for locating the optical center position of the lens LE relative to the lens shape based on the set (input) processing conditions. For example, the layout data includes the distance FPD between the left and right lens centers, the interpupillary distance PD, and the height distance of the optical center relative to the lens shape center. Furthermore, the processing conditions input include the lens material, the frame type (e.g., metal, cell, rimless, etc.), the lens periphery processing type (e.g., beveling, flat processing, groove processing, etc.), whether or not to perform mirror processing, etc.

[0059] For example, an operator holds the lens LE on the lens chuck shafts 120 (120L, 120R) and starts the operation of the eyeglass lens processing apparatus 100 using the monitor 102. For example, when the control unit 60 receives a signal to start the operation, it executes an eyeglass lens shape measurement program and starts measuring the shape of the lens LE using the lens refractive surface shape measuring unit 160, prior to processing the peripheral edge of the lens LE. As a result, the control unit 60 acquires the outer shape of the lens LE and stores it in the memory 70.

[0060] <Rough processing> The control unit 60 determines the roughing path based on the layout data stored in the memory 70 and the outer shape of the lens LE, and then starts roughing. A method similar to that described in the prior art can be used to perform roughing (see, for example, Japanese Patent Application Laid-Open No. 2017-177234). For example, the control unit 60 drives the motor 141 of the processing tool unit 140 to move the roughing tool 142 of the processing tool unit 140 to a roughing position. For example, the control unit 60 drives the motor 131 of the carriage 130 to bring the lens LE and the roughing tool 142 closer together. For example, while rotating the lens LE using the motor 133 of the carriage 130, the control unit 60 controls the drive of the motor 131 based on the roughing path, thereby changing the positional relationship of the lens LE with respect to the roughing tool 142, thereby roughing the lens LE. The control unit 60 also drives the water suction pump 307 of the grinding water treatment device 300 to spray water from the nozzle 170.

[0061] For example, the control unit 60 drives the drive unit 260 of the large chip separating device 200 based on a predetermined operation signal of the eyeglass lens processing apparatus 100 before supplying water (before driving the water suction pump 307). For example, a trigger signal for starting processing of the eyeglass lens processing apparatus 100 can be used as the predetermined operation signal. Of course, a measurement start signal or measurement end signal for the lens LE by the lens refractive surface shape measuring unit 160 can also be used as the predetermined operation signal. Furthermore, a signal indicating that the lens chuck shaft 120 has held the lens LE, a signal indicating that the roughing tool 142 has come into contact with the lens LE, or the like can also be used as the predetermined operation signal. As a result, the conveyor 221 and the action unit 231 of the large chip separating device 200 start to rotate.

[0062] FIG. 6 is a diagram illustrating an example of roughing of the lens LE by the roughing tool 142. Note that FIG. 6 illustrates an example in which the roughing tool 142 is moved relative to the lens LE. First, the roughing tool 142 moves along a path M1. After reaching a roughing locus L2, the roughing tool 142 moves along a path M2 along the roughing locus L2. After the roughing tool 142 has moved halfway around the lens LE, the roughing tool 142 moves along a path M3. As a result, the lens LE on the path M2 side is cut off. Next, the roughing tool 142 again moves along the path M3, and then moves along a path M4 along the roughing locus L2. As a result, the remaining halfway around the lens LE is cut off, and the lens LE is processed along the roughing locus L2. Note that control of roughing by the roughing tool 142 is not limited to the example of FIG. 6, and various control methods can be used. In this way, during the rough processing, large processing chips 20 are generated that are cut off from the lens LE by the rough processing tool 142. In addition, wastewater containing the large processing chips 20 and small processing chips generated in association with the rough processing of the lens LE is discharged into a drainage hose 190 connected to the bottom of the processing chamber 180.

[0063] <Separation of large processing waste and wastewater> 7 is a diagram illustrating the separation of large chips and water. For example, wastewater 40 containing chips generated during the rough machining of a lens LE is guided to a large chip separator 200 by a drainage hose 190 connected to the bottom of the machining chamber 180 and falls onto a conveyor 221 of a waste receiver 220. For example, the wastewater 40 that falls onto the conveyor 221 becomes a mixture of large chips 20 cut off by the rough machining tool 142, small chips 30 generated when the lens LE is machined with the rough machining tool 142, and water. For example, because the upper surface of the waste receiver 220 is inclined downward toward a drainage path 240 extending to a grinding water treatment device 300, the wastewater 40 flows toward the drainage path 240 by gravity.

[0064] For example, wastewater 40 passes through the wastewater passage port 211 of the large chip retention section 210 and flows toward the wastewater path 240. At this time, large chips 20 hit retention section 212 of the large chip retention section 210 and are retained on the conveyor 221 of the waste receiving section 220. For example, the large chips 20 are transported in the direction of arrow D by the rotation of the conveyor 221 and come into contact with the action section 231 of the removal section 230. For example, because the action section 231 rotates in the direction of arrow E, the rotation of the action section 231 guides the large chips 20 toward the chip discharge path 250. For example, the large chips 20 are discharged through the chip discharge path 250 to the chip discharge port 206 and fall into the dust box 400. This allows the worker to easily dispose of the large chips 20 accumulated in the dust box 400.

[0065] On the other hand, for example, the wastewater 40 containing small machining chips 30 passes through the drainage passage 211 and flows via the drainage path 240 to the drainage outlet 205. For example, the wastewater 40 containing small machining chips 30 flows via the drainage hose 301 to the grinding water treatment device 300. For example, the wastewater 40 containing small machining chips 30 is separated into the machining chips and water by the grinding water treatment device 300. The separated water is guided to the nozzle 170 of the eyeglass lens processing device 100 via the water supply hose 308.

[0066] For example, when the control unit 60 receives a signal indicating that rough machining is complete, it drives the drive mechanism 260 of the large chip separation device 200 for a predetermined time and then stops the drive mechanism 260. Of course, the control unit 60 may also stop the drive mechanism 260 when it receives a signal indicating that rough machining is complete. For example, since large chips 20 are unlikely to be generated in machining other than rough machining, during subsequent machining, the wastewater 40 containing small chips 30 passes through the large chip separation device 200 and flows into the grinding water treatment device 300 via the drainage hose 301.

[0067] <Example of transformation> Although the large chip separation device of this embodiment has been described as having a separate large chip retention section 210 and a waste material receiving section 220, the present invention is not limited thereto. For example, the large chip retention section 210 and the waste material receiving section 220 may be integrated. FIG. 8 is a diagram showing a configuration in which the large chip retention section and the waste material receiving section are integrated. For example, the conveyor 221 of the waste material receiving section 220 may have multiple through-holes (e.g., a mesh-like pattern) that are large enough to prevent large chips from passing through. For example, wastewater discharged from the eyeglass lens processing apparatus 100 passes through the conveyor 221 of the waste material receiving section 220, thereby retaining the large chips. For example, wastewater containing small chips passes through the conveyor 221 and flows to the drain outlet 205 via the drainage path 240. For example, the removal section 230 discharges the large chips retained on the conveyor 221 to the chip discharge outlet 206 via the chip discharge path 250. This makes it possible to separate wastewater containing large chips from wastewater containing small chips with a simpler configuration.

[0068] In the large chip separation device of this embodiment, the rotation drive mechanism of the waste receiving unit and the rotation mechanism of the action unit are configured to rotate in a fixed direction, but this is not limited to this. For example, the rotation direction of the waste receiving unit may be switched. For example, there is a possibility that the waste will continue to adhere to a predetermined position in the removal unit. Furthermore, when the removal unit removes large chips, there is a possibility that the waste will concentrate in one location at the discharge port. In response to this, switching the rotation direction makes it easier to remove the large chips more appropriately. Note that the rotation direction may be switched every predetermined number of processing cycles, every predetermined time, etc. [Explanation of symbols]

[0069] 10 Eyeglass lens processing system 100 Eyeglass lens processing equipment 200 Large processing waste separation equipment 210 Large processing waste storage area 220 Waste receiving section 230 Removal section 260 Drive Unit 300 Grinding water treatment equipment 400 dustbin 500 Mounting Table

Claims

1. an eyeglass lens processing device that processes the periphery of an eyeglass lens with a processing tool; a grinding water treatment device that separates processing waste and water contained in wastewater discharged from the eyeglass lens processing device; A large processing debris separation device used in an eyeglass lens processing system including: It is installed in a drainage path that guides the drainage water from the eyeglass lens processing device to the grinding water treatment device, A large machining chip separation device characterized by having a drive mechanism that is driven by a drive unit to separate large machining chips that are larger than the small machining chips that are allowed to flow into the grinding water treatment device from the wastewater before the wastewater reaches the grinding water treatment device.

2. The large chip separating device according to claim 1, a waste receiving section into which waste materials including the processing waste and the wastewater discharged from the eyeglass lens processing device are thrown; a large chip retention section that allows small chips and water to pass through the grinding water treatment device while preventing large chips from passing through the waste material received in the waste material receiving section, thereby causing the large chips to remain in the waste material receiving section; a removal unit that removes the large processing chips that have accumulated in the waste receiving unit; The large processing chip separating device further comprises:

3. 3. The large chip separating device according to claim 2, The upper surface of the waste receiving portion is inclined downward toward the drainage path extending to the grinding water treatment device, so that small machining chips and water introduced into the upper surface are moved in a direction toward the grinding water treatment device, The large chip retaining portion is disposed in a circumferential direction surrounding the outer periphery of the upper surface of the waste receiving portion, at least in a direction facing a drainage path extending to the grinding water treatment device, The large machining chip separation device is characterized in that the removal section removes large machining chips that have accumulated in the waste material receiving section by moving them in a direction different from the drainage path that extends to the grinding water treatment device.

4. The large chip separating device according to claim 2 or 3, The waste receiving section is one of the drive mechanisms, and rotates around an axis that intersects the horizontal plane, thereby moving large machining chips that have accumulated on the upper surface.

5. The large chip separating device according to any one of claims 2 to 4, The large chip separation device is characterized in that the removal unit has an operating unit as one of the drive mechanisms that rotates by the drive unit to scrape out large chips that have accumulated in the waste receiving unit to the outside of the waste receiving unit.

6. The large chip separating device according to any one of claims 1 to 5, The processing chip separating device is characterized in that the drive unit starts driving before rough processing of the periphery of the eyeglass lens of the eyeglass lens processing device starts, and stops driving after rough processing is completed.

7. an eyeglass lens processing device that processes the periphery of an eyeglass lens with a processing tool; a grinding water treatment device that separates processing waste and water contained in wastewater discharged from the eyeglass lens processing device; A large processing chip separating device according to any one of claims 1 to 6, An eyeglass lens processing system comprising:

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