JP4704243B2 - Eyeglass lens grinding device - Google Patents

Description

  The present invention relates to an eyeglass lens grinding apparatus, and more particularly to an eyeglass lens grinding apparatus having a lens grinding liquid processing function.

  The spectacle lens grinding apparatus grinds the spectacle lens in accordance with the shape of the spectacle frame when the spectacle lens is mounted on the spectacle frame. During grinding, the grinding surface is used for cooling and removing chips. Is discharged. The discharged grinding fluid is collected in the grinding fluid tank together with the grinding powder. For example, when the spectacle lens is made of plastic, water is used as a grinding liquid, and a grinding odor is generated by grinding. The grinding odor is also sucked into the grinding liquid tank together with the grinding liquid.

  The grinding fluid collected in the grinding fluid tank is passed through a filter to remove large chips, and fine swarf is separated by settling on the bottom of the grinding fluid tank. The supernatant grinding fluid from which the chips are separated is circulated and used.

  By repeating the grinding of the spectacle lens, the separated chips are accumulated in the grinding liquid tank. Therefore, it is necessary to remove the spectacle lens after the required period elapses or when a predetermined number of spectacle lenses are ground.

  Conventionally, the chips separated by the filter are discarded after the filter is removed, and the fine chips accumulated in the grinding liquid tank are removed by cleaning the grinding liquid tank. Further, since the amount of fine chips is small, it is discarded together with the grinding fluid to be replaced. However, from the viewpoint of environmental protection, it is preferable that fine chips are separated and treated as industrial waste.

  In order to separate and remove fine chips, it is necessary to remove accessories such as a grinding liquid pump provided in the grinding liquid tank, and to remove and clean the chips as a single unit. For this reason, the work of removing fine chips after completion of the daily work is complicated and burdensome.

JP 2002-187066 A

  In view of such circumstances, the present invention provides a spectacle lens grinding apparatus having a grinding liquid processing function that allows fine chips to be completely separated from the grinding liquid and allows the fine chips to be individually discarded. is there.

  The present invention relates to a grinding apparatus main body for grinding a lens, a storage tank for storing a grinding liquid, and a suction of the grinding liquid stored in the storage tank to supply to a lens grinding portion, and the ground grinding liquid is stored in the storage tank. A grinding fluid circulation device that leads to the grinding fluid, and a chip processing unit that separates the chips contained in the grinding fluid, the chip processing unit includes a sludge pump, and settled on the bottom of the storage tank by the sludge pump. The present invention relates to a spectacle lens grinding apparatus configured to suck chips as sludge and store the sucked sludge in a removable sludge separation tank. The present invention relates to a spectacle lens grinding apparatus having a collecting scraper, and also relates to a spectacle lens grinding apparatus in which the scraper has a spiral shape, and sludge is collected at the suction port of the sludge pump by rotating the scraper. Also, the drive shaft of the scraper is hollow, the suction port of the sludge pump is related to a spectacle lens grinding device configured to be located at the inner lower end of the drive shaft, and the bottom surface of the storage tank is The present invention relates to a spectacle lens grinding apparatus having a slope inclined toward a scraper, and further relates to a spectacle lens grinding apparatus configured such that the grinding liquid separated in the sludge separation tank is returned to the storage tank.

  According to the present invention, a grinding apparatus main body for grinding a lens, a storage tank for storing a grinding liquid, a grinding liquid stored in the storage tank is sucked and supplied to a lens grinding portion, and the ground grinding liquid is A grinding fluid circulating device that leads to the storage tank; and a chip processing unit that separates the chips contained in the grinding fluid. The chip processing unit includes a sludge pump, and the sludge pump is provided at the bottom of the storage tank. Since it is configured to suck the precipitated chips as sludge and store the sucked sludge in a removable sludge separation tank, the chips are concentrated by being settled in the storage tank and further sucked as sludge. Since it is further concentrated by being stored in the sludge separation tank, it is easy to separate the chips, and the sludge separation tank can be separated, so that the sludge separation tank is separated from the storage tank and cut. Powder Processing becomes possible, during the processing of the chips also enables grinding using eyeglass lens grinding apparatus, thereby improving the working efficiency.

  Further, according to the present invention, the chip treatment unit has a scraper that scrapes the chips deposited on the bottom of the storage tank, and the scraper has a spiral shape, and the scraper is rotated, Since sludge is collected at the suction port of the sludge pump, the precipitated chips can be sucked effectively.

  According to the present invention, the drive shaft of the scraper is hollow, and the suction port of the sludge pump is configured to be positioned at the lower end inside the drive shaft. Therefore, the sludge suction part, the sludge scraping part, Can be combined compactly.

  According to the present invention, the bottom surface of the storage tank has a slope inclined toward the scraper, so that the precipitated chips can be sucked effectively.

  Furthermore, according to the present invention, since the grinding liquid separated in the sludge separation tank is configured to be returned to the storage tank, it is possible to obtain excellent effects such as no need to replenish the grinding liquid during the grinding liquid treatment. Demonstrate.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  An outline of a spectacle lens grinding apparatus in which the present invention is implemented will be described with reference to FIGS.

  In the figure, reference numeral 1 denotes a table, 2 denotes a grinding apparatus main body, and a grinding fluid processing apparatus 3 is disposed below the table 1. A processing chamber 4 that is substantially sealed is formed inside the grinding apparatus body 2, and processing portions such as a grindstone 5 and a lens 6 to be ground are accommodated in the processing chamber 4.

  The grinding liquid processing apparatus 3 mainly includes a storage tank 8 having a sealed structure for storing the grinding liquid 7, a grinding liquid circulation section 9, and a chip processing section 11. As shown in the drawing, the bottom of the storage tank 8 has a bowl shape.

  First, the grinding fluid circulating unit 9 will be described.

  The storage tank 8 is provided with a circulation pump 12, and the circulation pump 12 is provided on the upper surface of the storage tank 8 with the grinding liquid pump unit 13 submerged in the grinding liquid 7 of the storage tank 8. A circulation motor 14 for driving the section 13 and a ventilation section 15 are provided.

  The grinding fluid pump section 13 and the grinding fluid supply nozzle 16 of the grinding apparatus body 2 are communicated with each other by a grinding fluid supply hose 17. A chip separation filter 18 is detachably mounted on the upper surface of the storage tank 8, and the bottom of the processing chamber 4 and the chip separation filter 18 are communicated with each other by a return hose 19. The sucked-up grinding fluid is sent to the grinding fluid supply nozzle 16 through the grinding fluid supply hose 17 and supplied from the grinding fluid supply nozzle 16 to the grinding portion of the grindstone 5. The supplied grinding fluid is circulated to the storage tank 8 through the return hose 19 and discharged to the chip separation filter 18. The chip separation filter 18 has a mesh structure, and the mesh size is about 1 mm, for example, and relatively large chips are collected by the chip separation filter 18.

  The circulation motor 14 drives a ventilation fan (not shown) of the ventilation unit 15 at the same time, sucks the air above the storage tank 8, and the sucked air is deodorized via the exhaust duct 21. It is sent to the device 22 or the outside air.

  Next, the chip processing unit 11 will be described.

  The chip processing unit 11 includes a sludge collection unit 23, a sludge separation tank 24, and the chip separation filter 18. The sludge separation tank 24 is attached to a side surface of the storage tank 8, and is attached to the storage tank 8. The sludge separation tank 24 and the storage tank 8 are communicated with each other by a supernatant return port 25 above the level of the grinding liquid 7.

  The said sludge collection part 23 is demonstrated.

  A scraper drive shaft 26 extending downward from the upper surface of the storage tank 8 is rotatably supported on the upper surface of the storage tank 8, and a driven gear 27 is fitted to the upper end portion of the scraper drive shaft 26. A scraper 28 is attached to the lower end of the scraper drive shaft 26, the scraper 28 is positioned at the lowest part of the bottom surface of the storage tank 8, and the lower edge is in sliding contact with the bottom surface of the storage tank 8.

  The scraper drive shaft 26 is hollow, and the scraper 28 is formed by forming one or a plurality of strips in a spiral shape around the scraper drive shaft 26, and the scraper 28 is the scraper 28. The fluid in contact with the rotating member is rotated so as to be scraped to the hollow portion of the scraper drive shaft 26 by the rotation. Referring to FIG. 5, the scraper drive shaft 26 is rotated clockwise. Further, the scraper 28 is reinforced by ribs 29 whose upper edge portions extend radially as required.

  A scraper motor 31 and a sludge suction motor 32 are provided above the storage tank 8. An output shaft 33 of the scraper motor 31 projects into the storage tank 8, and a drive gear 34 is fitted to the output shaft 33. The drive gear 34 meshes with the driven gear 27. The scraper motor 31 rotates the scraper 28 through the drive gear 34, the driven gear 27, and the scraper drive shaft 26 at a required speed, for example, 4 to 5 minutes. Moreover, you may rotate intermittently for every required time.

  Further, a sludge pump 35 is accommodated in the scraper drive shaft 26 inside the scraper drive shaft 26, and the sludge pump 35 is driven by the sludge suction motor 32, and a rod or the like from the lower surface of the storage tank 8. The support member (not shown) supports the suction port so as to be positioned at the lower end of the scraper drive shaft 26. One end of a sludge hose 36 is connected to the sludge pump 35 and the other end is connected to the sludge separation tank 24. At least one of the connection between the sludge hose 36 and the sludge pump 35 and the connection between the sludge hose 36 and the sludge separation tank 24 is detachable. The sludge pump 35 is intermittently driven, for example, 5 seconds to 10 seconds per minute. The sludge pump 35 only needs to have a suction port located at the lower end of the scraper drive shaft 26, and the sludge pump 35 itself is provided above the scraper drive shaft 26 or outside the storage tank 8. May be.

  The operation will be described below.

  By rotating the grindstone 5 and rotating the lens 6, the lens 6 is ground into a required shape. Further, during grinding, the circulating motor 14 is driven to suck the grinding fluid 7, and the suctioned grinding fluid 7 is ground on the lens 6 via the grinding fluid supply hose 17 and the grinding fluid supply nozzle 16. To be supplied.

  The grinding fluid 7 containing chips flows into the chip separation filter 18 through the return hose 19. The chip separation filter 18 captures large chips, for example, 1 mm or more of chips, and the chips smaller than 1 mm are stored in the storage tank 8 together with the grinding liquid 7. The atmosphere in the processing chamber 4 sucked together with the grinding liquid 7 and returned to the storage tank 8 is sucked by the ventilation unit 15 and protrudes to the deodorizing device 22 through the exhaust duct 21, After being deodorized by the deodorizing device 22, it is discharged to the outside.

  Fine chips smaller than 1 mm settle on the bottom surface of the storage tank 8, move along the slope of the bottom surface, and are stored in the lowest part. The upper part of the grinding liquid 7 in the storage tank 8 is a supernatant from which chips are separated, and the supernatant is sucked by the grinding pump section 13 being driven by the circulation pump 12, It is supplied to the grinding fluid supply nozzle 16 via a grinding fluid supply hose 17 and discharged to the grinding portion of the lens 6.

  The scraper 28 is slowly rotated by the sludge pump 35 so that the fine chips do not rise, and the fine chips stored in the lowest part of the storage tank 8 are scraped to the center of the scraper drive shaft 26. It is done.

  The sludge pump 35 is intermittently driven, and the scraped fine chips are sucked together with the surrounding grinding water as high-concentration sludge and discharged to the sludge separation tank 24. In the sludge separation tank 24, the chips and the grinding liquid are further separated by precipitation. As the sludge sucked by the sludge pump 35 is discharged to the sludge separation tank 24, the liquid level of the sludge separation tank 24 rises, and the supernatant passes through the supernatant return port 25 to the storage tank 8. Returned. Accordingly, the sludge is sucked so that the level of the grinding liquid 7 does not drop, and it is not necessary to replenish the storage tank 8 with the grinding liquid during the search operation. When the sludge separation tank 24 is installed, if the grinding fluid (for example, water) is filled up to the supernatant return port 25, as will be described later, even when the sludge separation tank 24 is replaced, the storage tank 8 is replaced. The liquid level inside does not change.

  When the grinding operation is completed or the grinding operation is performed for a predetermined time and then the chips are separated and discarded, the large chips are collected by the chip separation filter 18 after removing the chip separation filter 18. Discard the chips.

  The small chips stored in the sludge separation tank 24 are removed from the sludge separation tank 24 and dried. Since the chips stored in the sludge separation tank 24 are concentrated, they can be naturally dried.

  The sludge separation tank 24 may be removed and the sludge inside may be taken out and dried, or may be dried while stored in the sludge separation tank 24. Regardless of the drying method, by preparing a sludge separation tank 24 separately, after removing the sludge separation tank 24 in which chips have accumulated, an empty sludge separation tank 24 is attached to the storage tank 8. Thus, sludge drying and lens grinding can be performed in parallel, improving workability.

  Alternatively, a filtering bag (for example, a mesh cloth or a bag made of paper that can catch chips of about 10 microns) is mounted in the sludge separation tank 24 in advance, and the sludge is placed in the filtering bag. If the sludge sucked up by the pump 35 is discharged, the filter bag is taken out when the chips are discarded, and the liquid is drained together with natural drying, the handling becomes easy. Further, if the moisture is sucked and dried by a vacuum pump or the like, the drying time of the chips can be shortened, and the entire filter bag is discarded after drying, so that handling is easy.

  Alternatively, the sludge separation tank 24 may be a cassette type, and after the sludge stored in the sludge separation tank 24 is dried, the sludge separation tank 24 may be discarded as it is.

  Further, the sludge separation tank 24 is omitted, the filter bag itself is used as a sludge separation tank, the filter bag is suspended from the ceiling of the storage tank 8, and the filter bag is not immersed in the grinding liquid 7. If the sludge sucked by the sludge pump 35 is discharged into the filter bag, the liquid can be drained during grinding and the drying time is shortened.

  Large chips are collected and discarded by the chip separation filter 18, and small chips are collected and discarded in the sludge separation tank 24, so that the lens is repeatedly ground in the storage tank 8. However, almost no chips accumulate, and the work after grinding or daily work only needs to be replaced with the grinding fluid, and the work is simple.

  Furthermore, the chips can be separated and processed as industrial waste, and the environment is not polluted.

  The scraper 28 is only required to scrape chips that have settled on the bottom of the storage tank 8, and the shape and the scraping method can be variously changed. For example, a spiral blade may be attached to the lower surface of the disk, and the disk may be rotated. In this case, a spiral blade may be attached to the upper surface of the disk, and by attaching the blade to the upper surface, the chips deposited on the disk can be collected or removed.

  Further, for example, when the chips are sucked from the center with the bottom surface being flat, the accumulated chips form a slope with a recessed center, so the bottom surface of the storage tank 8 may be flat. Or it is good also as a V-shaped slope.

  Alternatively, a guide plate having a slope may be provided. Furthermore, when the bottom surface is flat, the scraper 28 may be formed into a flat plate shape, and the scraper 28 may be moved linearly by a cylinder or the like to scrape chips.

  Further, the size of the chips of the chip separation filter 18 may be a size that allows the sludge pump 35 to suck the chips that have passed through the chip separation filter 18, and pass through the chip separation filter 18. By making the chips to be made as large as possible, the size of the chips deposited in the sludge separation tank 24 is large and small, so that the drainability is improved.

  The drive shaft for driving the sludge pump 35 may have a hollow structure, and the drive shaft may be a part of the sludge hose 36, or the scraper drive shaft 26 may be used as a part of the sludge hose 36. May be.

  Furthermore, a drying device for drying the collected chips may be provided.

It is a side view which shows the outline of the spectacle lens grinding apparatus which concerns on embodiment of this invention. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is CC arrow line view of FIG. FIG. 4 is a DD arrow view of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Table 2 Grinding device main body 3 Grinding fluid processing device 4 Processing chamber 5 Grinding wheel 6 Lens 8 Storage tank 9 Grinding fluid circulation device 11 Chip treatment part 12 Circulation pump 13 Grinding fluid pump part 14 Circulation motor 15 Ventilation part 17 Grinding liquid supply hose 18 Chip Separation Filter 19 Return Hose 21 Exhaust Duct 23 Sludge Collection Unit 24 Sludge Separation Tank 25 Supernatant Return Port 26 Scraper Drive Shaft 28 Scraper 31 Scraper Motor 32 Sludge Suction Motor 35 Sludge Pump 36 Sludge Hose

Claims (4)

Grinding device main body for grinding the lens, a storage tank for storing the grinding fluid, and a grinding fluid for sucking the grinding fluid stored in the storage tank and supplying it to the lens grinding part and guiding the ground grinding fluid to the storage tank A circulation device and a chip processing unit for separating the chips contained in the grinding fluid, the chip processing unit includes a sludge pump and a scraper that scrapes the chips deposited on the bottom of the storage tank. The scraper drive shaft is hollow, and the suction port of the sludge pump is configured to be located at the lower inner end of the drive shaft. The sludge pump sucks the chips deposited on the bottom of the storage tank as sludge. The spectacle lens grinding apparatus is configured to store the sucked sludge in a removable sludge separation tank. Grinding device main body for grinding the lens, a storage tank for storing the grinding fluid, and a grinding fluid for sucking the grinding fluid stored in the storage tank and supplying it to the lens grinding part and guiding the ground grinding fluid to the storage tank a circulation device, comprising a chip processing unit for separating the chips contained in the grinding fluid,該切powder processing unit comprises a sludge pump, and a take-collecting scraper chips precipitated in the reservoir tank bottom The scraper has a spiral shape, and when the scraper is rotated, sludge is collected at the suction port of the sludge pump, and the sludge pump sucks the chips that have settled at the bottom of the storage tank as sludge. An eyeglass lens grinding apparatus characterized in that the sucked sludge is stored in a removable sludge separation tank . Bottom of the reservoir tank, the eyeglass lens grinding apparatus according to claim 1 having a surface inclined toward the scraper.   The spectacle lens grinding apparatus according to claim 1, wherein the grinding liquid separated in the sludge separation tank is configured to be returned to the storage tank.

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