JP4495020B2 - Grinding water treatment equipment for lens grinding equipment - Google Patents

Description

  The present invention relates to a grinding water treatment apparatus for a lens grinding apparatus in which grinding water used for grinding a spectacle lens is filtered to separate grinding waste and the like from grinding water.

  Conventionally, as a grinding water treatment apparatus of this type of lens grinding apparatus, the grinding water for grinding a spectacle lens is filtered to separate grinding waste from the grinding water, thereby separating the separated grinding water. Is known to be used again for grinding a spectacle lens.

  As such a grinding water treatment apparatus, a grinding water mixed with a defoaming agent is sprayed on the surface of the grinding water stored in a grinding water tank in which bubbles are generated to spray the foam (shower shape) to eliminate bubbles. A grinding water treatment apparatus provided with a foam device is also known (see, for example, Patent Documents 1 and 2).

  Grinding with a defoaming device that pressurizes the grinding water using a jet nozzle connected to the grinding water tank and injects the pressurized grinding water upward from below the surface of the stored grinding water. A water treatment apparatus is known (see, for example, Patent Document 3).

  Also known is a grinding water treatment apparatus provided with foam suction means for sucking and removing foam generated on the surface of the grinding water stored in the grinding water tank (see, for example, Patent Document 4).

Further, there is also known a grinding water treatment apparatus provided with a foam outflow passage for removing bubbles generated on the surface of the grinding water stored in the grinding water tank by overflowing from the upper surface of the grinding water tank (for example, (See Patent Document 5).
JP-A-11-320407 (0038, 0042) JP-A-11-320408 (0029, 0033) JP 2002-219650 A (0018, FIG. 3) JP 2002-292563 A (0023) Utility Model Registration No. 2514215

  By the way, it is desirable that such filtered water can be drained directly to the sewer.

  Therefore, an object of the present invention is to provide a grinding water treatment apparatus for a lens grinding apparatus capable of draining filtered water directly to a sewer as it is.

In order to achieve this object, the invention of claim 1 includes a bottomed cylindrical separation container main body, a bottomed cylindrical grinding dust separation filter disposed in the separation container main body, and a separation container main body. A lid that closes the upper opening end, and a water supply port to the grinding waste separation filter is provided at the upper end of the separation container main body, and at the lower end of the separation container main body. wherein with exhaust water outlet of the grinding water separated in the processing refuse separation filter is provided, by supplying grinding water containing the grinding dust from the lens grinding apparatus into the grinding wastes separating the filter, the spectacle lens The grinding water for grinding is filtered by the grinding waste separation filter, whereby the grinding waste of the grinding water is collected in the grinding waste separation filter, and the filtered grinding water is collected in the separation container main body. Flow down into the bottom A grinding water treatment apparatus of a lens grinding apparatus that separates waste from the grinding water and drains it from a drain outlet at a lower portion of the separation container body, and is collected in the grinding waste separation filter. Grinding water treatment of a lens grinding apparatus provided with pressure applying means for applying a predetermined pressure to the grinding waste, applying pressure to the grinding water contained in the grinding waste, and causing the grinding water to ooze out from the grinding waste. It is a device.

According to a second aspect of the present invention, in the grinding water treatment apparatus of the lens grinding apparatus according to the first aspect, the pressure applying means is an air compressor .
Further, the invention according to claim 3 is the grinding water treatment apparatus of the lens grinding apparatus according to claim 1 or 2, wherein the drain outlet is an upper drain outlet and a lower drain outlet provided to be shifted up and down. And

  According to this structure, filtered water can be drained directly to the sewer.

  FIG. 1 shows an embodiment of the invention according to the present invention.

[Constitution]
In FIG. 1, 1 is a lens grinding apparatus, 2 is an apparatus support for supporting the lens grinding apparatus 1, and 3 is a grinding water tank (grinding liquid tank) disposed below the apparatus support 2. The inside of the grinding water tank 3 is partitioned by a partition filter 23 into a purified grinding water chamber (purified water chamber) 3a and a discharged grinding water chamber (waste liquid chamber) 3b.

  A purified water reduction pump 24 is disposed in the purified grinding water chamber 3a, and a grinding water discharge pump 25 is disposed in the discharged grinding water chamber 3b. A discharge side of the purified water reduction pump 24 and a grinding liquid supply nozzle (not shown) in the lens grinding apparatus 1 are connected via a purified grinding water supply hose 26.

  The lens grinding apparatus 1 rotates a grinding wheel (not shown) at high speed, and grinds a lens to be processed (unprocessed circular spectacle lens) into a lens shape (lens shape) of the spectacles using the grinding wheel. ing.

  At this time, the purified grinding water in the purified grinding water chamber 3 a is pumped up by the purified water reduction pump 24 and supplied from the purified grinding water supply hose 26 to a nozzle (not shown) in the lens grinding apparatus 1, and is supplied from this nozzle. The processed lens is supplied to a grinding part by a grinding wheel to cool the grinding part and wash away grinding waste. Since a well-known structure is used for such grinding, detailed description thereof is omitted.

  Then, the grinding water (hereinafter referred to as discharged grinding water) from which the grinding waste has been washed out in this way is ground together with the grinding waste from the bottom of the lens grinding apparatus 1 via the grinding water discharge hose (grinding water supply hose) 19. It is made to flow down to the discharge grinding water chamber 3b of the tank 3.

  Further, a grinding water treatment device 27 is disposed on the side of the device support 2. In addition, as will be described later, the grinding water treatment device 27 is configured to generate purified grinding water (hereinafter referred to as “purified water”) by filtering the discharged grinding water and separating and removing grinding scraps and the like.

  The grinding water treatment device 27 includes a support base 28 with casters, a bottomed cylindrical separation container main body (pressure-resistant container) 9, and a bottomed cylindrical grinding waste separation disposed in the separation container main body 9. A filter 10 is provided. The grinding water treatment device 27 includes a lid body 11 that closes the upper opening end of the separation container body 9, a packing 12 that is interposed between the lid body 11 and the upper end of the separation container body 9, It has a fixing screw 13 for fixing the lid 11 to the separation container main body 9 and a lever 14 for fixing and releasing the fixing screw 13.

  Further, the grinding water treatment device 27 has a water supply port 15 connected to the upper end portion of the separation container main body 9 and a drainage port 16 provided at the lower part of the separation container main body 9. The water supply port 15 and the drain port 16 are provided with on-off valves (not shown). Reference numerals 15 a and 16 a are open / close operation levers of the open / close valves (not shown) of the water supply port 15 and the drain port 16.

  One end of the grinding water discharge hose 30 is connected to the discharge port (not shown) of the grinding water discharge pump 25, and the other end of the grinding water discharge hose 30 is detachable from the water supply port 15 by a connector or a screw. It is connected to the.

  On the other hand, one end portion of the purified water reduction hose 31 is detachably connected to the drain port 16 by a connector or a screw, and the other end portion of the purified water reduction hose 31 is above the discharge grinding water chamber 3b of the grinding water tank 3. Is detachably held by a connector or a screw. As a fixing means for the connector or screw, a conventionally known hose connector or nut can be used.

  Further, the other end of the purified water reducing hose 31 is equipped with an injection nozzle N as an ejection means for ejecting purified water flowing out from the drain port 16 radially by a known means (see FIG. 12).

  The other end of the purified water reduction hose 31 is located in the vicinity of the outlet of the grinding water discharge hose 19. At this time, the closer the other end of the purified water reducing hose 31 is to the outlet of the grinding water discharge hose 19, the better.

[Action]
Next, the operation of the lens grinding apparatus 1 and the grinding water treatment apparatus 27 having such a configuration will be described.

(A) Grinding waste washing at the time of grinding In such a configuration, the lens grinding is performed with the on / off operation levers 15a and 16a being operated to open the on / off valves (not shown) of the water supply port 15 and the drain port 16. A grinding wheel (not shown) of the processing apparatus 1 is rotated at a high speed, and the lens to be processed is ground into the lens shape (lens shape) of the glasses by the grinding wheel.

  At this time, purified water, which is purified grinding water in the purified grinding water chamber 3 a of the grinding water tank 3, is pumped up by the purified water reduction pump 24 and is passed through the purified grinding water supply hose 26 to the lens grinding apparatus 1. The nozzle is supplied to a nozzle (not shown), and is supplied from this nozzle to a grinding portion of the lens to be processed by a grinding wheel to cool the grinding portion and wash away grinding debris.

  And the grinding water which washed away the grinding waste in this way becomes the discharge grinding water, and enters the drain grinding water chamber 3b of the grinding water tank 3 from the bottom of the lens grinding apparatus 1 via the grinding water discharge hose 19 together with the grinding waste. It is made to flow down.

(B) Grinding waste separation treatment (grinding water treatment)
On the other hand, the grinding water discharge pump 25 sucks the discharged grinding water in the discharged grinding water chamber 3b of the grinding water tank 3 together with the grinding waste and discharges the discharged grinding water containing this grinding waste with the grinding water accompanying such grinding. It is supplied into the grinding waste separation filter 10 through the hose 30 and the water supply port 15. The purified water reduction pump 24 and the grinding water discharge pump 25 may be shared by a single pump.

  Then, the grinding waste contained in the discharged grinding water is collected by the grinding waste separation filter 10, and the discharged grinding water is separated from the grinding waste and becomes purified water.

  Further, the purified water is returned to the discharged grinding water chamber 3 b of the grinding water tank 3 through the drain port 16 and the purified water reducing hose 31. At this time, the purified water is jetted into the discharge grinding water chamber 3b through the injection nozzle N located above the discharge grinding water chamber 3b.

  Since the other end portion of the purified water reduction hose 31 to which the injection nozzle N is mounted is located in the vicinity of the outlet of the grinding water discharge hose 9, the purified water injected from the injection nozzle N is supplied to the grinding water discharge hose. At the same time as mixing with the discharged grinding water used for the grinding process flowing down from 19, it is possible to cover a portion where the discharged grinding water flowing down and the discharged grinding water already stored collide.

  As a result, the discharged grinding water flowing down from the grinding water discharge hose 19 flows into the foam generated when flowing into the grinding water tank 3 before the grinding waste contained in the discharged grinding water adheres and hardens. Foam can be extinguished by spraying the purified water toward the inflow position of the discharged grinding water so that the discharged grinding water and the filtered purified water are mixed (blended).

  Furthermore, since the injection nozzle N attached to the other end of the purified water reducing hose 31 can eject purified water radially, almost the entire surface of the discharged grinding water stored in the grinding tank 3 by purified water is removed. This purified water can be sprayed (sprayed) so as to cover.

  Then, before the ground grinding water contained in the discharged grinding water adheres to the foam generated when the discharged grinding water flowing down from the grinding water discharge hose 19 flows into the grinding water tank 3 and hardens, Foam can be extinguished by spraying radially.

(C) Disposal of grinding waste In this way, when grinding waste is collected to some extent by the grinding waste separation filter 10 and the amount of discharged grinding water filtered by the grinding waste separation filter 10 decreases, the purified water reduction pump 24, After the grinding water discharge pump 25 is stopped, the lever 14 is operated to release the fixation of the lid 11 to the separation container main body 9 by the fixing screw 13.

  Thereafter, the lid body 11 is removed from the separation container main body 9, the internal grinding waste separation filter 10 is taken out, and the grinding waste collected in the grinding waste separation filter 10 is discarded. Then, the grinding waste separation filter 10 is returned to the separation container main body 9, and the upper portion of the separation container main body 9 is closed by the lid body 11 by the operation opposite to the above, and the grinding process (a) and (b ) Grinding water treatment. Then, such grinding water treatment is repeated.

  In such a grinding water treatment, when the grinding water filtration ability by the grinding waste separation filter 10 is reduced, the purified water is squeezed from the grinding waste by an air compressor (pressure applying means) (not shown) and drained from the drain port 16. Thereafter, the grinding waste collected by the grinding waste separation filter 10 may be discarded as described above.

(D) Disposal of grinding water If purified water is suspended to some extent even after such grinding water treatment, the purified water reduction hose 31 is removed from the grinding water tank 3 and the purified water reduction hose 31 is removed. By draining into a drainage hole for sewage (not shown) and performing the above-described grinding water treatment, the grinding water from which the grinding waste has been separated can be discarded into the sewage. In addition, by removing the purified water reduction hose 31 from the drain port 16 and attaching a drain hose (not shown) connected to the sewage to the drain port 16 to perform the above-described grinding water treatment, the grinding waste is separated. The turbid purified water may be disposed of as sewage.

(E) Others Since a space is formed below the support base 28 by performing such a circulating grinding water treatment, a deodorizing device 32 as shown in FIG. 2 is provided in this space. The odor in the lens grinding apparatus 1 and the grinding water tank 3 (for example, odor generated when grinding a plastic lens) may be deodorized.

  Next, an example according to the above-described embodiment of the present invention will be described with reference to FIGS. The same parts as those of the embodiment of the invention will be described with the same reference numerals as those used in the embodiment of the invention.

  In FIG. 4, 1 is a lens grinding apparatus, 2 is a rack-shaped apparatus support base for supporting the lens grinding apparatus 1, and 3 is a grinding water tank (grinding liquid tank) disposed below the apparatus support base 2. is there.

  As shown in FIGS. 4 and 8, the grinding water tank 3 is divided into a purified grinding water chamber (purified water chamber) 3a and a discharged grinding water chamber (waste liquid chamber) 3b by a partition filter 23. .

  As the partition filter 23, a 100 μm filter is used so that grinding dust does not enter the deodorizing device (to prevent the passage of grinding dust and the like). As a result, the purified grinding water chamber 3a and the discharge grinding water chamber 3b are in communication with each other while preventing the passage of grinding scraps and the like, and the amounts of water stored in each are almost the same.

  A purified water reduction pump 24 is disposed in the purified grinding water chamber 3a, and a grinding water discharge pump 25 is disposed in the discharged grinding water chamber 3b. The discharge side of the purified water reduction pump 24 and the grinding fluid supply nozzle 1a in the lens grinding apparatus 1 are connected via a purified grinding water supply hose 26 as shown in FIG.

  One end of the grinding water discharge hose 30 is connected to the discharge port (discharge side) of the grinding water discharge pump 25, and a connection pipe 30 a is attached to the other end of the grinding water discharge hose 30.

  Further, as shown in FIG. 8, the lens grinding apparatus 1 rotates the grinding wheel 1b at a high speed, and the grinding wheel 1b causes the lens to be processed (unprocessed circular spectacle lens) L to be in the lens shape (lens) of the spectacles. The mold shape is ground.

  At this time, the purified water, which is the grinding water in the purified grinding water chamber 3a, is pumped up by the purified water reduction pump 24 and supplied from the purified grinding water supply hose 26 to the nozzle 1a in the lens grinding apparatus 1, and this nozzle 1a is supplied to the grinding part A by the grinding wheel 1b of the lens L to be processed, and the grinding part A is cooled and the grinding waste is washed away (see FIG. 8). Since a well-known structure is used for such grinding, detailed description thereof is omitted.

  And the grinding water which washed away the grinding waste in this way becomes the discharge grinding water, and the drain grinding water chamber 3b of the grinding water tank 3 through the grinding water discharge hose 19 from the bottom of the lens grinding apparatus 1 together with the grinding waste. To be allowed to flow down.

  In addition, as shown in FIG. 12, it hold | maintains so that the front-end | tip part of the purified water reduction hose 31 may be located in the vicinity of the outflow port 19a of this grinding water discharge hose 19. As shown in FIG. An injection nozzle N is provided at the tip of the purified water reduction hose 31. Furthermore, the other end of the purified water reduction hose 31 is connected to the connection pipe 31a.

  Here, the ejection nozzle N is ejection means for ejecting purified water flowing out from the purified water reduction hose 31 radially by a known means.

  Further, a grinding water treatment device 27 is disposed on the side of the device support 2 as shown in FIG. The grinding water treatment device 27 is disposed in a main body case with casters (corresponding to the support base 28 in FIG. 1) 40, a bottomed cylindrical separation container body (pressure-resistant container) 9, and the separation container body 9. The bottomed cylindrical grinding dust separating filter 10 is provided.

  On the front surface of the main body case 40, a front upper protrusion 41 that protrudes to the front side is provided at the top. Further, a front opening 42 is formed in the lower front portion of the main body case 40 as shown in FIGS. 3 and 5, and the front opening 42 is closed by a front lid 43 as shown in FIG.

  Further, as shown in FIG. 2, the grinding water separation device 27 is interposed between the lid body 11 that closes the upper opening end of the separation container body 9 and between the lid body 11 and the upper end of the separation container body 9. It has a packing 12 mounted, a fixing screw 13 for fixing the lid 11 to the separation container main body 9, and a lever 14 for fixing and releasing the fixing screw 13.

  Further, the grinding water treatment device 27 includes a water supply port 15 connected to the upper end portion of the separation container body 9, a drain port (lower drain port) 16 and a drain port (upper drain port) provided at the lower part of the separation container body 9. ) 16 '.

  As shown in FIG. 4, a water supply connection pipe 44 and an air supply connection pipe 45 are attached to the middle portion of the rear wall 40 a of the main body case 40 in the vertical direction, and the lower end of the rear wall 40 a is attached to the lower end of the rear wall 40 a. A hose connection pipe 46 is attached. Further, a drainage connection pipe 16b is attached to the lower surface of the front upper protrusion 41 of the main body case 40 as shown in FIGS.

  As shown in FIG. 8, the connection pipe 44 is connected to the water supply port 15 via an on-off valve 47, and the connection pipe 45 is connected to an air regulator 48 and an on-off valve 49. .

  Further, the drain port 16 and the drain connection pipe 16 b are connected to each other via the drain pipe 16 c and the on-off valve 50. The on-off valve 47 has an operation shaft 47a protruding upward from the upper wall 40b of the main body case 40 and an operation lever 47b provided integrally with the operation shaft 47a. The on-off valve 49 has an operation shaft 49a that protrudes upward from the upper wall 40b of the main body case 40, and an operation lever 49b that is provided integrally with the operation shaft 49a.

  The on-off valve 50 includes an operation shaft 50a that protrudes from the front of the front upper protrusion 41 of the main body case 40, and an operation lever 50b that is provided integrally with the operation shaft 50a.

  One end of a drain pipe 16d is connected to the drain port 16 ', one end of a drain pipe 16e is connected to the middle of the drain pipe 16c, and an on-off valve 90 is provided between the other ends of the drain pipes 16c and 16e. Is connected. The on-off valve 90 has an operation shaft 90a that protrudes upward from the upper wall 40b of the main body case 40, and an operation lever 90b that is provided integrally with the operation shaft 90a.

  Moreover, the connection pipe 30a of the grinding water discharge hose 30 is detachably connected to the connection pipe 44, and the connection pipe 31a of the purified water reduction hose 31 is detachably connected to the connection pipe 16b. Further, an air pump 20 is disposed on the side of the grinding water treatment device 27, one end of an air hose 21 is connected to the air discharge side of the air pump 20, and a connection pipe 21 a is connected to the other end of the air hose 21. It is connected. The connection pipe 21a is detachably connected to the connection pipe 45.

  The connection pipes 30a and 44, the connection pipes 31a and 16b, and the connection pipes 21a and 45 each constitute a pipe joint (connection means). For such a pipe joint, a coupler for pipe connection that can be attached and detached with one touch is used. A hose hook (locking hook) HF is attached to the connection pipe 31a, and the hose hook HF is a hose hook hole (hook locking hole, locking means) provided on the side surface (see FIG. 5) of the main body case 40. 40c can be locked.

  Further, as shown in FIG. 4, a deodorizing device 51 is disposed at the lower part in the main body case 40. The deodorizing device 51 includes a deodorizing device main body 52 and a small blower (electric blower) 53 that applies a suction negative pressure to the deodorizing device main body 52.

  The deodorizing apparatus main body 52 has a deodorizing case 54 and a holding plate 55 attached to the bottom wall 40b of the main body case 40 as shown in FIG. The deodorizing case 54 includes a cylindrical case 56, end walls 57 and 58 provided at both ends of the cylindrical case 56, and a small-diameter screw insertion cylinder 59 fixed at both ends to the end walls 57 and 58. Yes. An air inflow port 60 and an air exhaust port 61 are formed in the end wall 57.

  The deodorizing case 54 has a partition wall 62 that divides one end portion side (end wall 57 side) in the cylindrical case 56 into left and right as shown in FIGS. 8B and 8C. As a result, the left and right portions in the cylindrical case 56 are partially communicated between the partition wall 62 and the end wall 58 (see FIGS. 8C and 8D).

  In addition, the deodorizing apparatus main body 52 includes activated carbon 63 filled in the deodorizing case 54 and a filter 64 disposed in the air inlet 60.

  Further, the holding plate 55 is formed with a hose connection port 65, a screw hole 66 and a blower communication port 67. The above-described blower 53 is attached to the holding plate 55, and an air suction port (not shown) of the blower 3 is communicated (connected) to the blower communication port 67.

  The deodorizing device main body 52 is inserted into the main body case 40 through the front opening 42 by grasping the peripheral edge (grip portion) protruding from the cylindrical case 56 of the end wall 58, thereby It is arranged. In this insertion, the air inlet 60, the screw insertion tube 59, and the air exhaust port 61 of the deodorizing case 54 are respectively opposed to the hose connection port 65, the screw hole 66, and the blower communication port 67 of the holding plate 55, and the deodorizing case 54 One end of each is brought into contact with the holding plate 55.

  In this state, the fixing screw 68 penetrating the front lid (lid body) 43 is inserted into the screw insertion tube 59, and the distal end portion of the fixing screw 68 is screwed into the screw hole 66. The plate 55 is fixed, and the front lid 43 is fixed to the main body case 40 with the front opening 42 closed. Further, the hose connection port 65 and the hose connection pipe 46 are connected by a transparent hose 69.

  A window hole 70 for visually recognizing the hose 69 is formed in the upper wall 40 b of the main body case 40, and the window hole 70 is covered with a transparent cover (window glass) 71. In FIGS. 9 and 12, reference numeral 8 denotes a grinding water storage container (for example, a bucket).

  Further, an air hose 46 a is interposed between the hose connection port 46 and the upper space of the purified grinding water chamber 3 a of the grinding water tank 3. That is, one end of the air hose 46 a is disposed in the upper space of the purified grinding water chamber 3 a in the upper space of the purified grinding water chamber 3 a, and the other end of the air hose 46 a is attached to the hose connection port 46.

  Further, an operation panel 72 is provided in the upper front portion of the support base 2. The operation panel 72 includes a dehydration push button switch 73, a deodorizing push button switch 74, and a filtration push button switch 75 as shown in FIG. Is provided. The push button switches 73 to 75 are connected to the control device 76.

  The control device 76 controls the operation of the air compressor 20 when the dehydrating push button switch 73 is pressed and turned on. The control device 76 controls the blower 53 when the deodorizing push button switch 74 is pressed and turned on. Further, the control device 76 controls the operation of the purified water reduction pumps 24 and 25 when the filtration push button switch 75 is pressed and turned on.

  The control device 76 controls the operation of the purified water reduction pump 24 by a processing signal from the lens grinding device 1 when the lens grinding device 1 is performing lens grinding processing, and supplies purified water to the nozzle 1a. It is supposed to be supplied.

  In addition, a timer T is attached to the upper wall 40b of the main body case 40, and the time set by the timer T is the filtration processing time.

[Action]
Next, the operation of the lens grinding apparatus 1 and the grinding water treatment apparatus 27 having such a configuration will be described.

(A) Grinding water circulation during grinding When the lens grinding machine 1 performs grinding, first, the opening / closing operation lever 47b is operated to open the opening / closing valve 47, and the grinding water discharge hose 30 is communicated with the water supply port 15. Then, the open / close operation lever 45b is operated to open the open / close valve 50, the open / close operation lever 90b is operated to open the open / close valve 90, and the purified water reducing hose 31 is communicated with the drain ports 16, 16 ′. On the other hand, the open / close operation lever 49b is operated to close the open / close valve 49, and the communication between the air discharge side of the air compressor 20 and the water supply port 15 is shut off.

  Next, a control panel (not shown) of the lens grinding apparatus 1 is operated to rotate the grinding wheel 1b at high speed, and the grinding lens 1b is used to grind the lens to be processed into a lens shape (lens shape) of glasses. At this time, the control device 76 operates the purified water reduction pumps 24 and 25 in response to the grinding start signal from the lens grinding apparatus 1.

  As a result, the purified water in the purified grinding water chamber 3a of the grinding water tank 3 is pumped up by the purified water reduction pump 24 as shown by the arrow A1 in FIG. 9 (see FIG. 10), and the purified grinding water supply hose 26 is obtained. Is supplied to the nozzle 1a in the lens grinding apparatus 1.

  Then, as shown in FIG. 9, the purified water is sprayed from the nozzle 1a toward the grinding portion A by the grinding wheel 1b of the lens L to be processed, and the grinding portion A is cooled and the grinding waste is washed away. The grinding water that has washed away the grinding waste in this way becomes discharged grinding water, and, as indicated by arrow A2, the grinding water together with the grinding waste from the bottom portion of the lens grinding apparatus 1 through the grinding water discharge hose 19 is supplied to the grinding water tank 3. It flows down into the discharge grinding water chamber 3b (see FIG. 9).

  On the other hand, the grinding water discharge pump 25 sucks the discharged grinding water in the discharging grinding water chamber 3b of the grinding water tank 3 together with the grinding waste, and discharges the grinding water containing this grinding waste as indicated by the arrow A3. It supplies in the grinding | polishing waste separation filter 10 through the hose 30, the on-off valve 47, and the water supply port 15 (refer FIG. 9).

  The discharged grinding water is filtered and separated by the grinding waste separation filter 10 and flows down to the bottom side of the separation container main body 9. The discharged ground water separated from the grinding waste in the separation container 9 becomes purified water and is guided to the connection pipe 16b through the drain port 16, the drain pipe 16c and the on-off valve 50, and the drain port 16 '. The drain pipe 16d, the open / close valve 90, the drain pipes 16e and 16c, and the open / close valve 50 are guided to the connection pipe 16b. Thus, drainage efficiency improves by providing the drain outlets 16 and 16 'shifted up and down.

  Then, the purified water guided to the connection pipe 16b is returned to the discharged grinding water chamber 3b of the grinding water tank 3 through the purified water reducing hose 31 as shown by the arrow A4 (see FIG. 9).

  At this time, the purified water is jetted into the discharge grinding water chamber 3b through the injection nozzle N located above the discharge grinding water chamber 3b.

  Since the tip of the purified water reduction hose 31 to which the injection nozzle N is attached is located in the vicinity of the outlet 19a of the grinding water discharge hose 19, the purified water injected from the injection nozzle N is supplied to the grinding water discharge hose. At the same time as mixing with the discharged grinding water used for the grinding process flowing down from 19, it is possible to cover a portion where the discharged grinding water flowing down and the discharged grinding water already stored collide.

  As a result, the discharged grinding water flowing down from the grinding water discharge hose 19 flows into the foam generated when flowing into the grinding water tank 3 before the grinding scraps contained in the discharged grinding water adhere and harden. The purified water can be jetted (sprayed) toward the inflow position of the discharged grinding water so that the discharged grinding water and the filtered purified water are mixed (blended).

  Furthermore, since the injection nozzle N attached to the other end of the purified water reducing hose 31 can eject purified water radially, almost the entire surface of the discharged grinding water stored in the grinding tank 3 by purified water is removed. This purified water can be sprayed (sprayed) so as to cover.

  And before the grinding waste contained in the discharged grinding water adheres to the foam periphery and hardens to the foam generated when the discharged grinding water flowing down from the grinding water discharge hose 19 flows into the grinding water tank 3, Foam can be extinguished by spraying purified water radially.

  In addition, the opening angle θ (see FIG. 13) of the purified water ejected by the ejection nozzle N is in the range of 120 ° to 180 °. The opening angle θ can be adjusted to an arbitrary angle.

  Furthermore, the closer the tip of the purified water reduction hose 31 provided with the ejection nozzle N is to the outlet of the grinding water discharge hose 9, the better. The closer one is likely to be mixed with the discharged grinding water flowing down from the grinding water discharge hose 19, and the bubbles are more easily extinguished.

  Further, the discharge grinding water chamber 3b to which the purified water is returned in this manner and the adjacent purified grinding water chamber 3a are communicated with each other through the partition filter 23. Therefore, the grinding water (purified water) from which the grinding waste has been separated by the partition filter 23 flows into the purified grinding water chamber 3a, and this purified water is sucked into the purified water reduction pump 24 and circulated.

  In addition, the grinding waste separation filter 10 is clogged by such a grinding process, and purified water returned to the discharged grinding water chamber 3b of the grinding water tank 3 through the drain port 16 and the purified water reduction hose 31. Even if the amount decreases, the discharged grinding water in the discharged grinding water chamber 3b passes through the partition filter 23 and flows into the drainage chamber 3a, and is discharged from the purified water reduction pump 24 and circulated. It does not interfere with washing and cooling.

(B) Deodorization Further, the slide lid 1c of the lens grinding apparatus 1 is slid upward to open the processing chamber 1d of the lens grinding apparatus 1, and the lens to be processed from between the lens rotation shafts 1e and 1e in the processing chamber 1d. When L is removed, the odor in the processing chamber 1c and the odor in the grinding water tank 3 may leak from the processing chamber 1c and cause discomfort to the operator. Therefore, when the processing chamber 1c of the lens grinding apparatus 1 is opened, odors are prevented from leaking from the processing chamber 1c to the outside.

  For this purpose, first, a deodorizing push button switch (button) 74 is pressed to turn it ON, and this ON signal is input to the control device 76. When the control device 76 receives the ON signal of the push button switch 74, the control device 76 operates the blower 53, and draws the suction negative pressure of the blower 53 in the upper space of the grinding water chamber 1a via the deodorizing device main body 52 and the air hoses 69, 46a. And act on the processing chamber 1 c via the grinding water discharge hose 19. Thereby, the odor in the processing chamber 1c is sucked into the upper space of the grinding water chamber 1a via the grinding water discharge hose 19.

  Moreover, the air containing the odor in the upper space of the purification grinding water chamber 3a is sucked into the deodorizing device main body 52 through the air hoses 46a and 69, passes through the filter 64 and the activated carbon 63, and is then exhausted from the blower 53. The At this time, bubbles of grinding water and grinding debris contained in the air are collected by the filter 64, the odor contained in the air that has passed through the filter 64 is adsorbed by the activated carbon 63, and the air from which the odor has been removed is exhausted from the blower 53 to the atmosphere. Is done.

  Therefore, since the odor generated in the processing chamber 1c of the lens grinding apparatus 1 does not leak to the outside, it is possible to prevent the operator from feeling uncomfortable.

  In addition, since the state in the transparent air hose 69 can be visually recognized through the transparent cover 71 of the window hole 70, even if bubbles of grinding water generated in the purified grinding water chamber 3a are sucked into the air hose 69 together with air, The state of foaming water can be confirmed. As a result, when there are a lot of bubbles in the grinding water, it affects deodorization. Therefore, the deodorizing device main body 52 is taken out and the filter 64 is replaced, or the air hose 69 is removed and the grinding water in the air hose 69 is removed. You can easily know the timing.

(C) Non-circular filtration of grinding water When the grinding water in the grinding water tank 3 is suspended to some extent by the grinding process as described above, and this grinding water is replaced, the opening / closing operation lever 47b is operated to open and close it. The valve 47 is opened, the grinding water discharge hose 30 is communicated with the water supply port 15, the open / close operation lever 45b is operated to open the open / close valve 50, the open / close operation lever 90b is operated to open the open / close valve 90, and purified water is reduced. The hose 31 is communicated with the drain ports 16 and 16 '. On the other hand, the open / close operation lever 49b is operated to close the open / close valve 49, and the communication between the air discharge side of the air compressor 20 and the water supply port 15 is shut off.

  Then, the connection pipe 31a of the purified water reduction hose 31 is removed from the connection pipe 16b, and the hose hook HF of the connection pipe 16 is locked in the hose hook hole 40c of the main body case 40, and the connection pipe 16b as shown in FIG. The grinding water storage container 8 is disposed below the bottom.

  When the push button switch 75 for filtering grinding water is pressed and turned on from the state of FIG. 10A, the LEDs (not shown) in the push button of the push button switch 75 are white as shown in FIG. 10B. And an ON signal is input to the control device 76. The control device 76 operates the grinding water discharge pump 25 when receiving the ON signal of the push button switch 75.

  Thereby, the grinding water discharge pump 25 sucks the discharged grinding water in the discharged grinding water chamber 3b of the grinding water tank 3 together with the grinding waste, and discharges the grinding water containing this grinding waste into the grinding water discharge hose 30 and the on-off valve 47. And it supplies in the grinding | polishing waste separation filter 10 through the water supply port 15 (refer arrow A3 of FIG. 9).

  The discharged grinding water is filtered and separated by the grinding waste separation filter 10 and flows down to the bottom side of the separation container main body 9. The ground water separated in the separation container 9 becomes purified water and is guided to the connection pipe 16b through the drain port 16, the drain pipe 16c and the on-off valve 50, while the drain port 16 ', the drain pipe 16d, It is guided to the connection pipe 16b through the on-off valve 90, the drain pipes 16e and 16c, and the on-off valve 50. Then, this purified water is caused to flow down from the connection pipe 16b into the grinding water storage container 8 as indicated by an arrow A5 in FIG. The purified water stored in the grinding water storage container 8 in this way is discarded into sewage or the like.

  Such filtration is performed for the time set by the timer T. When the set time is reached, the control device 76 stops the operation of the grinding water discharge pump 25 and turns on an LED (not shown) in the push button of the push button switch 75. The light is turned off as shown in FIG.

  When the grinding water storage container 8 is not used, a drainage hose (not shown) may be connected to the connection pipe 16b so as to drain directly from the drainage hose to sewage.

(D) Disposal of grinding waste In this way, when grinding waste is collected to some extent by the grinding waste separation filter 10, and the amount of grinding water filtered by the grinding waste separation filter 10 decreases, the grinding water discharge pump 25 is stopped. .

  Next, the open / close operation lever 47b is operated to close the open / close valve 47, thereby shutting off the communication between the grinding water discharge hose 30 and the water supply port 15, and the open / close valves 50 and 90 to be opened. Is communicated with the drains 16 and 16 '. On the other hand, the opening / closing valve 49 is opened by operating the opening / closing operation lever 49b, and the air discharge side of the air compressor 20 and the water supply port 15 are communicated.

  At this time, the connection pipe 31a of the purified water reduction hose 31 can be removed from the connection pipe 16b, and the ground water storage container 8 can be disposed below the connection pipe 16b. A connected drainage hose (not shown) can also be connected.

  When the air compressor 20 is operated in this state, the compressed air discharged from the air compressor 20 flows into the grinding dust separating filter 10 from the air hose 21, the air regulator 48, the on-off valve 49 and the water supply port 15. The compressed air that has flowed into the grinding waste separation filter 10 applies pressure to the internal grinding water so that the grinding water oozes downward from the grinding waste and flows down to the bottom side of the separation container body 9.

  The grinding water separated in the separation container 9 is guided to the connection pipe 16b through the drain port 16, the drain pipe 16c and the on-off valve 50, while the drain port 16 ', the drain pipe 16d, the on-off valve 90, the drainage. It is guided to the connection pipe 16b through the pipes 16e and 16c and the on-off valve 50, and drains from the connection pipe 16b as described above.

  And this grinding water is returned in the drainage chamber 3a via the purified water reduction hose 31. However, when the connection pipe 31a of the purified water reduction hose 31 is removed from the connection pipe 16b and the grinding water storage container 8 is disposed below the connection pipe 16b, the grinding water is supplied from the connection pipe 16b to the grinding water storage container 8. It flows down and is stored. The grinding water stored in the grinding water storage container 8 is discarded as sewage. When a drainage hose (not shown) connected to the sewage is connected to the connection pipe 16b, the grinding water drained from the connection pipe 16b is drained directly into the sewage via the drainage hose (not shown).

  After the grinding water contained in the grinding waste in the grinding waste separation filter 10 is dehydrated in this way, the lever 14 is operated to release the fixation of the lid 11 to the separation container body 9 by the fixing screw 13.

  Next, the lid body 11 is removed from the separation container main body 9, the internal grinding waste separation filter 10 is taken out, and the grinding waste in the grinding waste separation filter 10 is discarded. Thereafter, the grinding waste separating filter 10 is returned to the separation container main body 9, and the upper portion of the separation container main body 9 is closed by the lid body 11 by the operation opposite to the above, and the grinding process (a) described above ( The grinding water treatment of b) is performed. Then, such grinding water treatment is repeated.

  When the on-off valves 47, 48, 50, etc. described above are electromagnetic valves, the above-described grinding processing, grinding water filtration processing, deodorization, deaeration processing from grinding water grinding waste by the air pump 20, etc. The opening / closing switching of the on-off valves 47, 48, 50 as described above may be automatically performed by the control device 76. In FIG. 5, reference numeral 80 denotes a remote control provided with the same push button switches as the push button switches (buttons) 73, 74 and 75 provided on the operation panel 72.

  In the embodiment described above, the on-off valves 47 and 49 are provided, but the present invention is not necessarily limited to this configuration. For example, the on-off valves 47 and 49 are omitted, and the connection part (branch part from the pipe 15a) 15b between the pipe 15a connected to the water supply port 15 and the pipes 44a and 45a connected to the connection pipes 44 and 45 is three-way. With a switching valve, the three-way switching valve shuts off the communication between the pipes 15a and 45a when the pipes 15a and 44a communicate with each other. It can also be configured to block each other.

  The three-way switching valve can be automatically switched by using a three-way electromagnetic switching valve. Thereby, operability is improved. In addition, the other on-off valve described above can be automatically switched by using an electromagnetic on-off valve, thereby improving operability.

  Further, the connection pipe 16b and the purified water reducing hose 31 are detached and returned to the purified grinding water chamber 3a, drained into the grinding water storage container 8, or drained into sewage. However, it is not necessarily limited to this configuration. For example, a three-way switching valve can be provided in the connection pipe 16b to switch the communication cutoff between the connection pipe 16b, the purified water reduction hose 31 and the pipe to the sewage.

  Then, the connection pipe 16b can be provided with a three-way switching valve to switch the communication cutoff between the connection pipe 16b, the purified water reducing hose 31 and the pipe to the grinding water storage container 8 side. These three-way switching valves can be automatically switched as three-way electromagnetic switching valves. Further, a purified water reduction hose 31, a pipe to the sewage, a pipe to the grinding water storage container 8 side are provided, and a multi-way switching valve or an electromagnetic switching valve for communicating one of these with the connection pipe 16b is provided. It is also possible to improve efficiency.

  Below, the result of having evaluated the grinding water processing apparatus of the lens grinding processing apparatus which concerns on this invention is shown.

  The evaluation item is the height of the foam layer from the surface of the grinding water with respect to the elapsed time after the filtration treatment, that is, the height (cm) of the foam.

  In addition, the evaluation method is to continuously filter 30 plastic lenses (CR-39) that generate a lot of bubbles, measure the height of the bubbles every 10 sheets, and filter after processing 30 sheets. Was continued for 10 minutes, and the height of the foam was measured in the same manner.

  The results of this evaluation are summarized in a table as shown in Table 1 below.

  In addition, when it makes a graph, it is expressed as shown in FIG.

  Based on the above results, the generation of bubbles can be reduced by 56% by installing the injection nozzle N at the tip of the purified water reduction hose 31 so that the purified water is mixed with the discharged grinding water. I understood. Furthermore, it was also confirmed that most of the generated foam could be removed by continuing filtration for about 10 minutes after processing.

  Furthermore, as an embodiment of the second invention, there is a lens grinding apparatus shown in FIG.

  In this embodiment, a nozzle N which is a jetting means is provided at the tip 19a of the grinding water discharge hose 19, and the discharged grinding water is ejected radially.

  By covering the surface of the discharged grinding water previously stored in the discharged grinding water chamber 3b of the grinding water tank 3 with the discharged grinding water ejected through the nozzle N, the foam generated on the surface of the discharged grinding water is eliminated. Can be made.

  The opening angle θ of the discharged ground water ejected by the nozzle N is in the range of 120 ° to 180 ° as in the first embodiment. The opening angle θ can be adjusted to an arbitrary angle.

  Thus, also in the second embodiment, the generation of foam can be effectively reduced as in the first embodiment.

  According to the lens grinding apparatus described above, before the grinding water contained in the grinding water adheres to the foam generated when the grinding water flows into the grinding water tank and hardens, Foam can be extinguished by spraying purified water toward the inflow position of the grinding water so that the filtered purified water is mixed (blended).

  In addition, according to the lens grinding apparatus described above, the grinding water that flows in before the grinding waste contained in the grinding water adheres to the foam generated when the grinding water flows into the grinding water tank and hardens. The foamed water can be extinguished by spraying the purified water radially so as to be covered with the filtered purified water.

  Furthermore, according to the lens grinding apparatus described above, the grinding water that flows in before the grinding waste contained in the grinding water adheres to the foam generated when the grinding water flows into the grinding water tank and hardens. The foam can be eliminated by spraying the grinding water radially so as to cover the grinding water stored in the grinding water tank.

It is piping explanatory drawing which shows roughly an example of the grinding water processing apparatus of the lens grinding processing apparatus concerning this invention. It is explanatory drawing (left view of the support stand of FIG. 2) which shows the usage example of the support stand shown in FIG. It is a schematic perspective view which shows the Example of the grinding water processing apparatus shown in FIG. It is piping explanatory drawing of FIG. It is a disassembled perspective view of the deodorizing apparatus of FIG. It is action | operation explanatory drawing of the deodorizing apparatus of FIG. (A) Cross-sectional view of the screw insertion tube portion of the deodorizing case, (b) Cross-sectional view of the partition wall portion of the deodorizing case, (c) Cross-sectional view taken along line BB in FIG. 7 (b), (d) It is sectional drawing which follows the CC line in FIG.7 (b). It is piping explanatory drawing of each component of FIG. It is explanatory drawing which shows the flow of the grinding water in process. (A)-(c) is explanatory drawing of the operation panel shown in FIG. It is explanatory drawing of the grinding water non-circulation process state of the grinding water processing apparatus shown in FIG. FIG. 9 is an enlarged explanatory diagram of a portion E in FIG. 8. It is a graph which shows the result of having evaluated the grinding water processing apparatus of the lens grinding processing apparatus which concerns on this invention. It is principal part expansion explanatory drawing of the 2nd Example of the lens grinding processing apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lens grinding processing apparatus 3 ... Grinding water tank 20 ... Air compressor (pressure provision means)
27 ... Grinding water treatment device 31 ... Drain hose (means for returning grinding water)

Claims (3)

A bottomed cylindrical separation container main body, a bottomed cylindrical grinding waste separation filter disposed in the separation container main body, and a lid that closes an upper opening end of the separation container main body. , the separation with the upper end portion of the container body has water inlet is provided to the processing refuse separation in the filter, effluent of the grinding water in the lower part which is separated by the grinding wastes separating filter of the separation container main body A mouth is provided,
Grinding water containing grinding waste from the lens grinding apparatus is supplied into the grinding waste separation filter, and the grinding water for grinding the spectacle lens is filtered through the grinding waste separation filter, thereby the grinding. The grinding waste is collected in the grinding waste separation filter, and the filtered grinding water is allowed to flow into the bottom of the separation container main body to separate the grinding waste from the grinding water, thereby separating the separation. A grinding water treatment device for a lens grinding device that drains from a drain outlet at the bottom of the container body,
There is provided pressure applying means for applying a predetermined pressure to the grinding waste collected in the grinding waste separation filter, applying pressure to the grinding water contained in the grinding waste, and causing the grinding water to ooze out from the grinding waste. A grinding water treatment apparatus for a lens grinding apparatus characterized by the above. 2. The grinding water treatment apparatus for a lens grinding apparatus according to claim 1, wherein the pressure applying means is an air compressor . 3. The grinding water treatment apparatus for a lens grinding apparatus according to claim 1 or 2, wherein the drain port is an upper drain port and a lower drain port that are shifted up and down. Processing equipment.

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