JP2006326776A - Grinding water treatment device for eyeglass lens grinding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bubble removing device for a lens grinding device that can fully remove bubbles generated from the used grinding water. <P>SOLUTION: The bubble removing device for a lens grinding device removes the bubbles generated from the used grinding water when grinding an eyeglass by the lens grinding device 2. A case-like sub-tank 31, in which filtration holes 32 are formed, is arranged in a grinding water tank 30 for storing the used grinding water. The bubbles are separated by introducing the used grinding water into the sub-tank 31 via the filtration holes 32. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bubble removing device for a lens grinding apparatus that removes bubbles generated from grinding water used when a spectacle lens is ground by a lens grinding apparatus.

As a foam removing device (hereinafter referred to as a foam removing device) of a conventional lens grinding apparatus, the used grinding water used for the lens grinding process is filtered using a filter to remove bubbles generated from the used grinding water. What is removed is known (see, for example, Patent Documents 1 and 2).
JP 2004-90147 A JP-A-2-284866

  However, in the conventional foam removing device, the filter may be deformed due to the flow of used grinding water, the foam cannot be sufficiently filtered, and the foam remains in the filtered grinding water. It was happening.

  Then, this invention makes it the subject to provide the bubble removal apparatus of the lens grinding processing apparatus which can fully remove the bubble which generate | occur | produces from used grinding water.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a lens grinding apparatus for removing bubbles generated from used grinding water used for grinding a spectacle lens by a lens grinding apparatus. In the removing device, a housing-shaped sub tank in which a filtration hole is formed is disposed in the grinding water tank for storing the used grinding water, and the used grinding water is introduced into the sub tank, and the filtration hole is provided. It is characterized by separating bubbles through

  According to a second aspect of the present invention, in the bubble removing device of the lens grinding apparatus according to the first aspect, the filtered ground water extracted from the sub tank and stored in the ground water tank is agitated. .

  The invention described in claim 3 is characterized in that, in the bubble removing device of the lens grinding apparatus according to claim 1 or 2, a centrifuge for introducing filtered ground water extracted from the sub tank is provided. Yes.

  According to the invention described in claim 1, since the sub-tank into which the used grinding water is introduced and the foam is filtered has a casing shape, the sub-tank is not deformed due to the flow of the used grinding water, Bubbles can be reliably separated.

  According to the invention described in claim 2, in addition to the effect of claim 1, by stirring the filtered grinding water extracted from the sub-tank, the foam remaining in the filtered grinding water can be eliminated. It becomes possible to remove bubbles more sufficiently.

  According to the third aspect of the present invention, in addition to the effect of the first or second aspect, the residual foam remaining in the filtered ground water can be further reliably separated and removed by the centrifugal separator.

Next, a bubble removing device (hereinafter referred to as a bubble removing device) of a lens grinding apparatus according to the best mode for carrying out the invention will be described with reference to the drawings.
In FIGS. 1 and 2, reference numeral 1 denotes a mounting table of the lens grinding processing system according to the present invention, and reference numeral 2 denotes a lens grinding processing device mounted on the mounting table 1.

  Although the detailed configuration of the lens grinding device 2 is not shown, the processing chamber, a grinding wheel disposed in the processing chamber so as to be rotationally driven, and the grinding wheel are driven up and down with respect to the grinding wheel. A carriage, a pair of lens rotation shafts attached to the carriage, and a nozzle for spraying grinding water.

  In the lens grinding apparatus 2, the unprocessed lens (glasses lens) is held between the pair of lens rotation shafts, and the carriage is moved up and down based on the target lens shape information (θi, ρi). The unprocessed lens held between the rotating shafts can be ground into a target shape with a grinding wheel.

  At this time, the grinding portion is cooled by spraying grinding water from the nozzle onto the contact portion between the raw lens and the grinding wheel, that is, the grinding portion of the raw lens by the grinding wheel, and the grinding of the raw lens generated in the grinding portion is performed. Waste is washed away at the bottom of the processing chamber.

  A drain hose 3 is connected to the bottom of the processing chamber. The drain hose 3 drains used grinding water containing grinding scraps to the grinding water treatment device 5. Reference numeral 4 denotes a water supply hose connected to the bottom of the processing chamber. The water supply hose 4 supplies filtered grinding water from which grinding waste has been removed by the grinding water treatment device 5 to the processing chamber.

  Reference numeral 2a denotes an operation panel of the lens grinding apparatus 2. Since a known configuration can be adopted for the lens grinding apparatus 2 as described above, a detailed description thereof will be omitted.

  A grinding water treatment device 5 is disposed below the mounting table 1. The grinding water treatment device 5 has a main body case 6 having a plurality of casters 7 attached to a bottom surface 6a, and can be inserted and removed from below the mounting table 1.

  As shown in FIG. 3, a dehydrating device 10, a deodorizing device 20, and a grinding water tank 30 are provided inside the main body case 6. Reference numeral 6 b denotes an operation panel provided in the main body case 6. Further, a circular opening 8a is formed in the upper plate 6c of the main body case 6, and the opening 8a is closed by a detachable lid 9 as shown in FIGS. Further, a rectangular opening 8b is formed in the upper plate 6c, and the deodorizing device 20 can be inserted from the opening 8b.

  The lid body 9 is integrally formed with a cylindrical portion 9a (see FIG. 6) to be inserted into the main body case 6 on the lower surface, and a hose insertion hole 9b is formed at the center portion.

  A branch pipe 50 connected to the drain hose 3 of the lens grinding apparatus 2 is inserted into the hose insertion hole 9b.

  As shown in FIG. 4A, the branch pipe 50 includes a separation pipe 51 into which the drainage hose 3 is inserted for a fixed length, and an exhaust pipe 52 branched from the middle portion of the separation pipe 51.

  The separation pipe 51 is formed with an inner diameter larger than the outer diameter of the drainage hose 3, and is connected to the dehydrator 10. Here, the lower end 51a connected to the dehydrating apparatus 10 has an expandable bellows shape.

  Further, as shown in FIG. 4B, the exhaust pipe 52 extends in a tangential direction inclined by a predetermined angle with respect to the peripheral surface of the branch pipe 51 and is connected to the deodorizing device 20.

  As shown in FIGS. 3 and 6, the dewatering device 10 includes a bottomed cylindrical drainage receptacle (grinding water collecting case) 11 opened upward, a dehydration tank 12 built in the drainage receptacle 11, And a drive motor 13 for rotating the water tank 12.

  The drain receiver 11 is provided concentrically with the opening 8a, and the cylindrical portion 9a of the lid body 9 is inserted into the opened upper end portion and is closed by the lid body 9 (see FIG. 6).

  Further, a drain hose 111 (see FIG. 3) is connected to the bottom wall 11a of the drain receptacle 11 so that the used grinding water in the drain receptacle 11 flows into the grinding water tank 30.

  Further, the drain receiver 11 is supported in the main body case 6 by a vibration absorbing mechanism 60.

  As shown in FIGS. 3 and 5, the vibration absorbing mechanism 60 includes a support rod 61 extending in a vertical direction and an upper end portion of the support rod 61 on the upper plate 6c of the main body case 6 so as to be tiltable in an arbitrary direction. And a bracket 62 to be supported.

  In addition, the vibration absorbing mechanism 60 includes a coil spring 63 in which a lower portion of the support rod 61 is loosely inserted and a lower end portion fixed to the lower end portion of the support rod 61, and a support rod 61 fixed to the upper end portion of the coil spring 63. The guide member 64 is slidably fitted to the guide member 64. The guide member 64 is attached to the drain receiver 11 via a fixing member 65.

  Further, as shown in FIG. 6, a prismatic support member 112 is fixed to the lower surface of the bottom wall 11a of the drain receptacle 11 by screws (not shown), and the upper end portion of the motor holding rod 113 extending vertically is attached to the support member 112. Are fixed by screws (not shown).

  A cylindrical portion 11 b that protrudes upward is formed on the upper surface of the central portion of the bottom wall 11 a of the drain receptacle 11, and a holding plate 114 is fixed to the lower surface of the central portion of the bottom wall 11 a with a plurality of screws 115.

  Further, a rotating shaft 116 concentric with the cylindrical portion 11b is rotatably held by the holding plate 114 via a bearing (not shown).

  The rotating shaft 116 has an upper end portion 116a protruding upward from the cylindrical portion 11b, and a flange 117 disposed above the cylindrical portion 11b is provided integrally with the upper end portion 116a. A coupling 118 is fixed to the lower end portion 116 b of the rotating shaft 116.

  The drive motor 13 is fixed to the lower end portion of the motor holding rod 113. A coupling 131 that engages with the coupling 118 is attached to the output shaft 13 a of the drive motor 13.

  Then, when the coupling 118 and the coupling 131 are engaged, the rotating shaft 116 is interlocked with the output shaft 13a.

  The dewatering tank 12 is disposed above the cylindrical portion 11 b, and is concentrically disposed on a disc-shaped rotating plate 121 disposed on a flange 117 provided on the rotating shaft 116 and on a central portion of the rotating plate 121. The bottomed cylindrical inner cylinder 122 is provided.

  As shown in FIGS. 6 and 7, the inner cylinder 122 projects from the bottom wall 123, the cylinder portion 124 that is connected to the peripheral edge of the bottom wall 123, and the outer periphery of the upper opening end of the cylinder portion 124. And an outer flange 125.

  An insertion hole 126 is formed at the center of the bottom wall 123, and a plurality of vertically extending slits 124a formed at intervals in the circumferential direction are provided in the cylindrical portion 124 (see FIG. 7). ).

  The bottom wall 123 is fixed to the rotating plate 121 with a screw (not shown), and the rotating plate 121 is detachably fixed to a flange 117 provided on the rotating shaft 116 with a fixing screw 128 inserted through the insertion hole 126. ing.

  A separation pipe 51 of the branch pipe 50 penetrating the lid body 9 is inserted into the inner cylinder 122.

  Further, at the peripheral portion of the upper surface of the rotating plate 121 and the vicinity thereof, as shown in FIGS. 7 and 8, the inner and outer double lower inner annular grooves 121a and the lower outer annular grooves are concentric with the center of the rotating plate 121. 121b is formed.

  As shown in FIG. 8, the inner and outer double upper and lower annular grooves 125a and 125b are formed on the lower surface of the outer flange 125 of the inner cylinder 122 so as to be concentric with the center of the rotating plate 121, respectively. Yes.

  Here, the diameter of the lower inner annular groove 121a is formed larger than the diameter of the upper inner annular groove 125a and smaller than the diameter of the upper outer annular groove 125b, and the diameter of the lower outer annular groove 121b is larger than the diameter of the upper outer annular groove 125b. It is formed (see FIG. 8).

  As shown in FIG. 8, the lower inner annular groove 121a is fitted with the lower end portion of the tapered mesh tube (inner filter support frame) 14, and the upper inner annular groove 125a is fitted with the upper end of the mesh tube 14. The parts are fitted. Further, the lower outer annular groove 121b is fitted with a lower end portion of a tapered mesh cylinder (outer filter support frame) 15, and the upper outer annular groove 125b is fitted with an upper end portion of the mesh cylinder 15. . The tapered net-like cylinders 14 and 15 are provided in parallel to each other.

  The net-like cylinders 14 and 15 are integrally formed by attaching cylindrical filters 14a and 15a having inner tapered surfaces, respectively.

  As shown in FIG. 3, the deodorization apparatus 20 includes a substrate 21, a deodorization chamber 22 placed on the substrate 21, and a blower chamber 24 that communicates with the deodorization chamber 22 and in which a blower 23 is disposed. ing.

  The substrate 21 is fixed on a shelf plate 6 d that defines the inside of the main body case 6, and a communication pipe 25 that connects the duct 52 a, the deodorizing chamber 22, and the blower chamber 24 is fixed. In addition, the uneven | corrugated | grooved part 21a for arrange | positioning the deodorizing chamber 22 appropriately is formed in the upper surface of this board | substrate 21. As shown in FIG.

  The deodorizing chamber 22 communicates with the branch pipe 50 from the exhaust pipe 52 through a duct 52a continuous, and air branched by the branch pipe 50 flows therein.

  A first filter member 221 is provided on the side surface of the deodorizing chamber 22 so as to surround it, and the inside of the first filter 221 is filled with a second filter member 222.

  Here, the first filter member 221 is a filter formed of fibrous activated carbon, and the air discharged from the exhaust pipe 52 flows into the deodorizing chamber 22 through the first filter member 221. ing.

  The second filter member 222 is a mixture of activated carbon and deolite. Deolite is a kind of silica gel and is a substance having excellent absorbability.

  Note that a photocatalyst and a lamp may be provided in place of the first filter 221 and the second filter 222 described above. Further, the combination may be appropriately changed such as the first filter 221 and the photocatalyst, the second filter 222 and the photocatalyst, and the first filter 221 and the second filter 222 and the photocatalyst.

  The blower 23 disposed in the blower chamber 24 is driven to generate a suction negative pressure, and the suction negative pressure acts on the deodorization chamber 22 via the communication pipe 25, thereby flowing into the deodorization chamber 22. The air flows into the blower chamber 24. The air flowing into the blower chamber 24 is exhausted to the outside air from an exhaust port (not shown) formed in the blower chamber 24.

  The grinding water tank 30 is a container that is disposed below the shelf plate 6d that divides the inside of the main body case 6 and that opens upward.

  In the grinding water tank 30, a housing-like sub tank 31 having a shape retaining property is arranged.

  The sub tank 31 has a hollow cylindrical shape, and a large number of filter holes 32 are formed in the peripheral wall 31a, and a connection port 33 is formed in the upper wall 31b. A drain hose 111 connected to the bottom wall 11 a of the drain receiver 11 is connected to the connection port 33.

  Further, the large number of filter holes 32 have a sufficiently small diameter so that only the water of the used grinding water introduced through the drainage hose 111 passes therethrough.

  Furthermore, a discharge port 30a is formed in the grinding water tank 30 and communicates with the pump 35 via a discharge hose 34 connected to the discharge port 30a.

  The pump 35 is fixed in the main body case 6 via a bracket B, and a suction port 35a is formed on the side surface, and a discharge port 35b is formed on the upper surface. A discharge hose 34 is connected to the suction port 35a, and a hose 36 connected to the water supply hose 4 of the lens grinding apparatus 2 is connected to the discharge port 35b.

  Next, the operation of the foam removing apparatus of the present invention will be described.

  In such a configuration, when the lens grinding apparatus 2 is powered on, an arithmetic control circuit (not shown) of the lens grinding apparatus 2 first operates the drive motor 13. The rotation of the drive motor 13 is transmitted to the rotating shaft 116 through the coupling 131 and the coupling 118, and the flange 117 and the dewatering tank 12 are rotated integrally with the rotating shaft 116.

  Next, the arithmetic and control circuit of the lens grinding apparatus 2 operates the pump 35 to cause the pump 35 to suck the grinding water in the grinding water tank 30. The grinding water sucked into the pump 35 is supplied to a nozzle (not shown) in the processing chamber via the hose 36 and the water supply hose 4 and is sprayed from the nozzle toward a grinding wheel (not shown).

Then, when the arithmetic control circuit of the lens grinding apparatus 2 starts spraying of the grinding water from the nozzle toward the grinding wheel (not shown), the grinding process of the spectacle lens by the grinding wheel is performed on the lens shape information (θi, Start based on ρi).
Grinding debris generated during this grinding is washed away by the grinding water and flows down to the bottom of the processing chamber (not shown). The grinding water containing this ground debris (used grinding water) passes from the drain hose 3 to the branch pipe 50 as waste liquid. Then, the water is discharged to the grinding water treatment device 5.

  Here, for example, when a plastic lens is ground by the lens grinding apparatus 2, an odor containing a sulfur component or the like is generated in a processing chamber (not shown). The odor-containing air is discharged from the drainage hose 3 through the branch pipe 50 into the grinding water treatment device 5 together with the used grinding water.

And the used grinding water and the air containing an odor are discharged | emitted from the drainage hose 3, as shown to Fig.4 (a). At this time, the air spirally turns along the inner surface of the separation pipe 51 of the branch pipe 50, and the used grinding water flows down substantially vertically by its own weight.

Then, as shown in FIG. 4B, the swirled air flows into the exhaust pipe 52 extending from the separation pipe 51 and flows into the deodorizing device 20. Further, the used grinding water that has flowed vertically is drained into the inner cylinder 122 of the rotating dewatering tank 12. The used grinding water including the grinding waste drained into the inner cylinder 122 passes through the slit 124a due to the centrifugal force accompanying the rotation of the inner cylinder 122, and the space Sa (between the inner cylinder 122 and the cylindrical filter 14a ( 6 and FIG. 8).

  The used grinding water including the grinding waste flowing into the space Sa is transmitted through the cylindrical filter 14a and the mesh tube 14 and the space Sb between the mesh tube 14 and the tube filter 15a (FIG. 6, FIG. 8)).

  At this time, most of the grinding waste contained in the used grinding water is captured by the cylindrical filter 14a located inside. However, it is also conceivable that a small amount of grinding waste passes through the cylindrical filter 14a together with the used grinding water and flows into the space Sb.

  And the used grinding water which flowed into space Sb permeate | transmits the cylindrical filter 15a and the mesh-shaped cylinder 15, and flows in into the waste_water | drain receptacle 11. FIG. At this time, even if the used grinding water that has flowed into the space Sb contains grinding scraps, the grinding scraps are captured by the cylindrical filter 15a located outside.

  The used grinding water from which most of the grinding debris has been removed in this manner is blown in the radial direction by centrifugal force and collides with the inner surface of the drain receiver 11, and then flows downward and is ground via the drain hose 111. It flows into the tank 30.

  Here, the drain hose 111 is connected to a sub tank 31 arranged in the grinding water tank 30. Thereby, the used grinding water from which the grinding waste has been removed is first introduced into the sub tank 31.

  The used grinding water introduced into the sub tank 31 passes through a large number of filter holes 32 formed in the peripheral wall 31 a and flows out into the grinding water tank 30.

  Here, the filtration hole 32 has a sufficiently small diameter and does not allow bubbles generated in the used grinding water to permeate, and the bubbles are confined in the sub tank 31. In addition, since the sub tank 31 has a shape having a shape retaining property, the bubbles can be confined without being deformed by the momentum of the used grinding water flow.

  Thereby, the foam generated from the used grinding water can be reliably separated (filtered) from the grinding water.

  Further, the grinding water (filtered grinding water) extracted from the sub tank 31 and flowing into the grinding water tank 30 is convected and stirred in the grinding water tank 30 by the momentum flowing into the grinding water tank 30. It becomes. As a result, the fine bubbles that have passed through the filtration hole 32 of the sub tank 31 also disappear, and the bubbles can be removed more sufficiently.

  The filtered ground water from which bubbles have been removed in this way is sucked into the pump 35, and the sucked filtered ground water is discharged from the pump 35 to the hose 36, and from the hose 36 to the water supply hose 4. Then, water is supplied to the processing chamber of the lens grinding apparatus 2.

  On the other hand, the air containing the odor that has flowed into the exhaust pipe 52 flows into the deodorizing chamber 22 of the deodorizing apparatus 20 through the duct 52a continuous from the exhaust pipe 52.

  Here, since the first filter member 221 is provided on the side surface of the deodorizing chamber 22, the air containing odor first passes through the first filter member 221 and then fills the inside of the first filter member 221. The second filter member 222 is transmitted.

  At this time, the odor is adsorbed by the first filter member 221 and the second filter member 222 and deodorized. The deodorized air passes through the blower chamber 24 from the communication pipe 25 and is exhausted to the outside air from an exhaust port (not shown).

  In this deodorizing apparatus 20, since the first and second filter members 221 and 222 are deodorized, the odor generated by the lens grinding process can be almost completely removed.

  Further, another exhaust pipe is provided in the middle of the exhaust pipe 52, the air exhausted into the main body case 6 is sucked through the exhaust pipe, and the air is deodorized without being exhausted to the outside air by being led to the deodorizing device 20 again. Can be circulated to make it completely odorless.

  Further, when discarding the grinding scraps captured by the cylindrical filters 14a and 15a of the dewatering tank 12, after removing the lid 9 from the opening 8a of the upper plate 6c, the fixing screw 128 is removed from the flange 117 of the rotating shaft 116. It removes and the dehydration tank 12 is extracted from the waste_water | drain receptacle 11 inside.

  And the inner cylinder 122 of the dehydration tank 12 is removed from the rotating plate 121 by removing a screw (not shown). Then, the reticular cylinders (filter support frames) 14 and 15 can be removed from the rotating plate 121, and the cylindrical filters 14a and 15a can be taken out of the reticular cylinders 14 and 15 together with the grinding waste and discarded.

  As described above, the bubble removing device of the lens grinding apparatus according to the embodiment of the present invention has a housing-like sub tank 31 in which the filtration hole 32 is formed in the grinding water tank 30 for storing used grinding water. And the used grinding water is introduced into the sub tank 31 to separate the bubbles through the filter holes 32.

  According to this configuration, since the sub-tank 31 for introducing the used grinding water and filtering the foam has a casing shape, the sub-tank 31 is not deformed by the momentum of the used grinding water into which the sub-tank 31 has flowed, and the foam can be reliably obtained. It is possible to separate and confine in the sub tank 31.

  Furthermore, the foam removing device of the lens grinding apparatus according to the embodiment of the present invention agitates the filtered grinding water extracted from the sub tank 31 and stored in the grinding water tank 30.

  According to this configuration, by stirring the filtered grinding water extracted from the sub-tank 31 in the grinding water tank 30, the fine bubbles remaining in the filtered grinding water can be eliminated, and more sufficiently Bubbles can be removed.

  As mentioned above, although embodiment concerning this invention has been explained in full detail with drawing, a concrete structure is not restricted to the above-mentioned embodiment. Design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.

  For example, in the above-described embodiment, the filtered ground water discharged from the pump 35 is directly supplied to the lens grinding device 2 via the water supply hose 4. The lens grinding apparatus 2 may be supplied with water.

  In this way, by introducing the filtered grinding water from which bubbles have been removed by the sub-tank 31 to the centrifuge, the residual bubbles remaining in the filtered grinding water can be further reliably separated and removed. .

  Further, as shown in FIG. 9, the sub tank 311 and the foam suction pump 80 are connected via a first foam removal hose 81 and also connected to the foam suction pump 80 and a lens grinding apparatus (not shown here). The drain hose 3 ′ may be connected via the second defoaming hose 82.

  In this case, the bubbles trapped and separated in the sub tank 311 are sucked into the foam suction pump 80 by the first foam removal hose 81. This foam suction pump 80 is provided on the top plate 30b of the grinding water tank 30 ′, and sucks foam using the drive of a drive motor 13 that rotates the dewatering tank 12.

  Here, the upper opening of the grinding water tank 30 'is closed by the top plate 30b. The rotating shaft 84 of the foam suction pump 80 is connected to the rotating shaft 116 ′ protruding from the drain receiver 11 ′ via a belt 83.

  On the other hand, the foam sucked by the foam suction pump 80 is again introduced into the dehydration apparatus 20 via the second foam removal hose 82.

  As a result, even if it floats on water such as grinding dust contained in the foam, especially grinding waste generated from water-repellent spectacle lenses, it can be removed sufficiently and generated from used grinding water. It is possible to completely remove the bubbles.

  Further, as shown in FIG. 10, the sub tank 311 may be supported by a plurality of leg portions 313 protruding from the peripheral edge portion of the bottom wall 311a, with a large number of filtration holes 312 formed in the bottom wall 311a.

  In this case, the drain hose 111 ′ connected to the drain receiver 11 ′ is connected to a connection port (not shown) formed in the upper wall 311 b of the sub tank 311, and used grinding water is supplied to the sub tank 311 through the drain hose 111 ′. It comes to flow in.

  The filtered ground water from which bubbles have been removed by the sub tank 311 flows out from a large number of filtration holes 312 formed in the bottom wall 311a of the sub tank 311 and enters the ground water tank 30 ′ from between the plurality of legs 313. It has come to flow out.

  Here, since the filtration hole 312 is formed in the bottom wall 311a of the sub tank 311, bubbles floating upward in the sub tank 311 are less likely to flow out of the sub tank 311, and the bubbles generated from the used grinding water are further sufficiently removed. be able to.

  Further, as shown in FIG. 9, the upper portion of the side surface of the drain receiver 11 ′ and the intake opening 30 c formed in the top plate 30 b of the grinding water tank 30 ′ may be connected by an odor pipe 85.

  In this case, the odor in the drain receiver 11 'flows into the grinding water tank 30'. The odor filled in the grinding water tank 30 'flows into the deodorizing chamber 22' of the deodorizing device 20 'through an exhaust pipe (not shown).

  Thereby, the odor filled in the drain receptacle 11 'can be deodorized by the deodorization chamber 22', and the generation of odor can be further suppressed.

  In addition, here, as shown in FIG. 11, the intake port 86 of the deodorizing chamber 22 ′ is open to the inside of the grinding water treatment apparatus 5 ′, and communicates with the deodorizing chamber 22 ′ via a communication pipe 25 ′. The entire interior of the grinding water treatment device 5 'is evacuated by the blower 23' disposed in the blower chamber 24 '.

  Here, 87A and 87B shown in FIG. 9 are vacuum control valves, respectively, and when the inside of the grinding water treatment device 5 ′ is evacuated by the blower 23 ′, the whole inside of the grinding water treatment device 5 ′ is evacuated. Is provided.

  In addition, when drawing a vacuum with blower 23 ', air is drawn from the opening part 88 shown in FIG.

  Furthermore, as a stirring means, as shown in FIG. 12, a stirring motor 89 and a stirring screw 90 attached to the stirring motor 89 may be provided.

  In this case, the stirring motor 89 is disposed on the top plate 30b of the grinding water tank 30 ′ and adjacent to the drive motor 13 that rotates the dewatering tank 12 ′.

  Further, a blade 90a is provided at the tip of the stirring screw 90, and the blade 90a rotates in conjunction with the rotation of the stirring motor 89, so that the filtered grinding water stored in the grinding water tank 30 'can be sufficiently obtained. It can be convected and stirred.

  This prevents grinding debris such as synthetic resin that floats near the water surface of the grinding water from solidifying near the water surface, and it is possible to cleanly remove bubbles accumulated inside and below the solidified grinding debris. .

  Here, the stirring screw 90 penetrates the top plate 30b and is disposed outside the sub tank 311.

  Further, as shown in FIG. 13, a housing-like sub case 70 in which the pump P is built in the grinding water tank 30 may be arranged. A large number of minute filtration holes 71 are formed in the peripheral surface 70 a of the sub case 70.

  In this case, the used grinding water discharged from the drain hose 111 is first stored in the grinding water tank 30. When the pump P is driven, the used grinding water in the grinding water tank 30 passes through the filtration hole 71 and is drawn into the sub case 70.

  At this time, the foam generated from the used grinding water is filtered by the filtration hole 71, and the foam does not enter the sub case 70, and the used grinding water and the foam are separated.

  Then, the grinding water (filtered grinding water) drawn into the sub case 70 is supplied from a discharge pipe 72 connected to the pump P to a lens grinding apparatus (not shown) via a water supply pipe (not shown). The

  Further, as described above, the example in which the stirring motor 89 and the stirring screw 90 are provided as the stirring means has been described. However, the present invention is not limited to this. .

  Even in this case, the filtered grinding water in the grinding water tank can be further stirred, and the disappearance of bubbles can be further promoted.

It is a front view of the lens grinding system provided with the bubble removal apparatus of the lens grinding machine concerning the present invention. It is a side view of the lens grinding processing system of FIG. It is the disassembled perspective view which fractured | ruptured a part which shows the grinding water processing apparatus provided with the foam removal apparatus concerning this invention. (A) is explanatory perspective view which shows a branch pipe, (b) is FIG. 4 (a) AA sectional drawing. It is a principal part expanded sectional view of a vibration absorption mechanism. It is explanatory drawing which shows a dehydration apparatus. It is the disassembled perspective view which fractured | ruptured a part which shows a dehydration tank. It is a principal part expanded sectional view which shows the attachment part of a reticulated cylinder and a cylindrical filter. It is the disassembled perspective view which fractured | ruptured a part which shows the grinding-water-treatment apparatus provided with the foam removal apparatus of the other example concerning this invention. It is a perspective view which shows the sub tank of the foam removal apparatus of the other example shown in FIG. It is a perspective view which shows the deodorizing apparatus of another example. It is the fracture | rupture perspective view which looked at the grinding water processing apparatus shown in FIG. 9 from the opposite side. It is a perspective view which shows the further another example of the foam removal apparatus of this invention.

Explanation of symbols

30 Grinding water tank 31 Sub tank 32 Filtration hole

Claims (3)

In the bubble removal device of the lens grinding apparatus for removing bubbles generated from the used grinding water used when the eyeglass lens is ground by the lens grinding apparatus,
A housing-shaped sub tank with a filtration hole formed therein is disposed in the grinding water tank for storing the used grinding water, and the used grinding water is introduced into the sub tank and foamed through the filtration hole. A bubble removing device for a lens grinding apparatus characterized by separating the bubbles.   The bubble removal device for a lens grinding apparatus according to claim 1, wherein the filtered grinding water extracted from the sub tank and stored in the grinding water tank is agitated. The bubble removing apparatus for a lens grinding apparatus according to claim 1 or 2, further comprising a centrifuge into which filtered ground water extracted from the sub tank is introduced.

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