JP5269514B2 - Deodorization system for peripheral processing of eyeglass lenses - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently deodorize odor generated when machining a lens by suppressing leakage of the odor to the outside without increasing the size of a deodorization device. <P>SOLUTION: A deodorization system deodorizes the odor generated when machining the lens in a machining chamber of a machining device. The deodorization system has: a centrifugal separator which has a dewatering tank into which grinding water including machining chips discharged from the machining chamber is introduced, separates the grinding water from the machining chips by rotation of the dewatering tank, and discharges the separated grinding water to the outside of the dewatering tank; a grinding water discharge passage which leads the grinding water discharged from the centrifugal separator to a grinding water tank and is used also as an exhaust passage for discharging air including odor sucked from the machining chamber by the rotation of the dewatering tank to the grinding water tank; a deodorization device connected to an upper part from a water level surface of the tank via an intake pipe to deodorize odor by sucking air exhausted into the tank; and an exhaust pipe for leading air in the tank which cannot be sucked by the deodorization device and connecting the upper part of the tank and the machining chamber. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a deodorizing system for processing a peripheral edge of a spectacle lens that deodorizes the odor generated with the peripheral processing of the spectacle lens.

  In the eyeglass lens peripheral edge processing device, cooling water is supplied to the contact portion between the grindstone and the lens arranged in the processing chamber, and the processing waste generated during the peripheral processing of the lens passes through the drainage pipe together with the grinding water. And discharged to the grinding water tank. Further, when a plastic high-refractive lens or the like is ground by this spectacle lens peripheral edge processing apparatus, a bad odor is generated due to a sulfur component contained in the lens. For this reason, a deodorizing device is attached to the processing chamber or drain pipe of the eyeglass lens peripheral processing device via a suction hose, and the odor generated in the processing chamber is sucked by the fan of the deodorizing device and removed through the deodorizing filter. Is known (see, for example, Patent Document 1).

Further, in order to separate the grinding water discharged from the processing chamber of the spectacle lens peripheral edge processing apparatus and the processing waste, the processing waste and the grinding water are separated by rotating a dewatering tank into which drainage is charged. What provided the centrifuge which discharges | emits to a tank is known (for example, refer patent document 2, 3, 4).
JP-A-6-226629 Japanese Patent Laid-Open No. 2004-243452 JP 2002-283236 A JP 2006-326822 A

  However, in a system in which a deodorizing device is connected to the processing chamber and configured to suck and deodorize the processing chamber odor, a new centrifugal separator is provided, and a drain pipe extending from the processing chamber is connected to the centrifugal separator. However, in the centrifugal separator, it was found that a strong suction force works by rotating the dehydration tank at a high speed, and the odor in the processing chamber is sucked. If the suction power of the centrifuge exceeds the suction power of the deodorization device, the odor sucked by the centrifuge flows into the grinding water tank, and the odor leaks out from there. It is difficult to make the sealing performance of a centrifuge, a grinding water tank, etc. extremely high. In order to suppress the leakage of odor, if the suction power and deodorizing ability of the deodorizing device are increased, the deodorizing device becomes large, and the spectacle store must secure the installation space. In addition, an increase in the size of the deodorizing device is disadvantageous economically.

  In view of the above-mentioned problems of the prior art, the present invention provides a deodorization system for processing a peripheral edge of an eyeglass lens that can suppress the leakage of odor generated during lens processing to the outside without increasing the size of the deodorizer and efficiently deodorize the lens. The technical challenge is to provide

  In order to solve the above problems, the present invention is characterized by having the following configuration.

(1) Circulation in which the grinding water stored in the grinding water tank is pumped up by a pump and supplied to the spectacle lens peripheral processing apparatus, and the grinding water discharged from the processing chamber of the processing apparatus is returned to the tank and reused. A deodorizing system for processing a peripheral edge of a spectacle lens that deodorizes odor generated when a lens is processed in the processing chamber ,
It has a dewatering tank into which grinding water containing processing waste discharged from the processing chamber is introduced, and the grinding water and processing waste are separated by rotating the dewatering tank, and the separated grinding water is discharged out of the dewatering tank. A centrifuge to
Grinding water that also serves as an exhaust path that guides the grinding water discharged from the centrifuge to the grinding water tank and discharges air containing odor sucked from the processing chamber to the grinding water tank by the rotation of the dewatering tank. A discharge path;

A deodorizing device connected to the upper surface of the tank above the water surface via an intake pipe, and sucking the air exhausted into the tank to deodorize the odor;
An exhaust pipe that guides air in the tank, and connects the upper part of the tank above the water surface and the processing chamber to guide the air exhausted into the tank to the processing chamber without passing through the deodorizing device. Exhaust pipe to
It is characterized by providing.

  According to the present invention, it is possible to efficiently deodorize by suppressing leakage of odor generated during lens processing to the outside without increasing the size of the deodorizing apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a deodorizing system for processing a peripheral edge of a spectacle lens. FIG. 2 is a schematic configuration diagram of the deodorization system.

  1 and 2, the deodorizing system 10 is a circulating grinding water having a centrifugal separator 650 as a filtering device and a feed water pump 602 for supplying the grinding water stored in the tank 630 to the processing apparatus main body 1. It comprises a supply device 3 and a deodorizing device 8. These are stored under the table 2 on which the processing apparatus main body 1 is placed. In order not to increase the installation space of the apparatus in the spectacle store, the installation area of the table 2 is made substantially the same as the processing apparatus 1, and the deodorizing system 10 is also sized to be stored under the table 2.

  In the processing apparatus main body 1 of FIG. 2, the spectacle lens LE is held between the lens chuck shafts 101 </ b> L and 101 </ b> R disposed in the processing chamber 20. The grindstone group 162 disposed in the processing chamber 20 is composed of a plastic rough grindstone, a finishing grindstone, and the like, and is rotated by a motor 160. The lens chuck shafts 101 </ b> L and 101 </ b> R are moved in the lens chuck shaft direction and the grindstone rotation axis direction of the grindstone group 162, and rotated around the axis of the lens chuck shaft, and the periphery of the lens LE is processed by the grindstone group 162. This spectacle lens peripheral edge processing apparatus is configured by a known technique. For example, the technique described in JP 2006-305698 A can be used.

  In addition, the processing apparatus main body 1 is provided with a switch unit 51 that performs processing setting and start, and a display unit that displays processing conditions, a lens shape, and the like and can input processing conditions on the touch panel 50. Yes. In addition, an open / close window 22 that is opened and closed by driving of the electric actuator based on the start signal of the switch unit 51 described above is provided in the open portion (opening portion) above the processing chamber 20.

  The grinding water and processing waste used in the processing apparatus main body 1 are guided to the centrifuge 650 through the drain pipe 3a, and the grinding water filtered by the centrifuge 650 is returned to the grinding water supply apparatus 3. In FIG. 2, the nozzle 600 which injects grinding water to the contact part of the grindstone 162 and the lens LE is arrange | positioned at the side wall of the processing chamber 20 where the grindstone group 162 is arrange | positioned. The jet port of the nozzle 600 is directed in such a direction that the sprayed grinding water gives up the surface of the grindstone unit 162. Further, although detailed description is omitted, a nozzle through which cleaning water for cleaning the processing chamber is ejected is provided on the side wall at the back of the processing chamber 20. The waste water containing the processing waste is led to the drain pipe 3a from the drain port 20a provided on the bottom surface of the processing chamber 20, and is discharged.

  A tube 601 is connected to the nozzle 600, and the tube 601 is connected to an electric water absorption pump 602 disposed inside the grinding water supply device 3. An openable / closable lid member 631 is fitted on the upper part of the grinding water tank 630 for storing the grinding water, and the pump 602 is disposed on the upper part of the lid member 631. The pump 602 sucks up the grinding water stored in the grinding water tank 630 and sends it to the tube 601. Thereby, the grinding water is ejected from the nozzle 600.

  Next, the filtration mechanism of the grinding water will be described. A centrifuge 650 serving as a filtration mechanism for drainage (grinding water including processing waste) is disposed inside the housing 640. The centrifuge 650 includes a rotating shaft 651, a substantially cylindrical dewatering tank 652 fixed to the rotating shaft 651, and a motor 653 that rotates the dewatering tank 652 at high speed. The dewatering tank 652 has a shape in which the circumference expands upward. In the upper part of the dewatering tank 652, an annular filter 654 for separating and filtering the processing waste and the grinding water is disposed. For example, the filter 654 is made of a nonwoven fabric. The filter 654 is fixed to the upper portion of the dewatering tank 652 by a fixing member 655 having a coarse mesh structure. An upper cover 640a located above the dehydrating tank 652 is attached to the upper portion of the housing 640 so as to be opened and closed by a hinge. Further, by opening the upper cover 640a, the processing debris in the dewatering tank 652 can be taken out.

  The drain pipe 3a from the processing apparatus main body 1 is connected to a drain pipe 641 attached to the upper cover 640a, and the joint portion is substantially hermetically sealed by fitting. The drain pipe 641 is located at the rotation center of the centrifuge 650. The upper cover 640a receives water discharged from the filter 654, and also serves as a member that receives water blown from the gap 656 formed between the fixing member 655 and the drain pipe 641 and guides it downward. A water collection case 642 is fixed outside the dewatering tank 652 so as to surround the dewatering tank 652. The space above the water collection case 642 is kept substantially airtight by the upper cover 640a, and the lower side of the water collection case 642 is also kept substantially airtight by the cylindrical cover 657. The road is almost sealed. The water received by the water collection case 642 is guided to the grinding water tank 630 through the drain pipe 643 connected to the housing 640. The drainage pipe 643, the water collection case 642, the upper cover 640a, and the like form a grinding water discharge path for discharging the grinding water discharged from the centrifuge 650 to the tank 630, and this grinding water discharge path will be described later. It also serves as an exhaust path for discharging air containing odor sucked from the processing chamber 20 to the grinding water tank 630 by the rotation of the dewatering tank 652.

  The space in the grinding water tank 630 is substantially sealed by the lid member 631 being fitted. The lid member 631 positioned above the water surface of the grinding water tank 630 has an intake pipe 670 for connecting a space in the grinding water tank 630 and a deodorizing device 8 described later, a space in the grinding water tank 630, and a processing device. An exhaust pipe 680 that connects the upper part of the processing chamber 20 of the main body 1 is connected. The odor-containing air discharged from the centrifugal separator 650 to the grinding water tank 630 is guided to the deodorizing device 8 through the intake pipe 670 and guided to the upper portion of the processing chamber 20 through the exhaust pipe 680.

  In addition, a water collection filter 675 is provided on the lid member 631 of the grinding water tank 630 so that moisture contained in the odor is condensed and dropped to the grinding water tank 630. Since water contained in the odor sucked into the deodorizing device 8 is reduced by the water collecting filter 675, the deodorizing efficiency is not easily lowered due to the wetness of the activated carbon filter 802 described later.

  Next, the configuration of the deodorizing device 8 will be described. The deodorizing device 8 includes a deodorizing filter 802 made of activated carbon or the like that adsorbs odor components in a housing 801, and a blower 810 having a role of actively sucking odor from the deodorizing filter 802. Note that a catalyst or the like may be used as the deodorizing filter 802. The blower 810 includes a fan 811 and a motor 812 that rotates the fan 811. When the fan 811 is rotated by the motor 812, the odor of the grinding water tank 630 is sent to the deodorizing device 8 via the intake pipe 670. And is led to the exhaust port 801b.

  Here, the filtration operation of the grinding water by the centrifuge 650 will be described. Waste water containing processing waste from the processing apparatus main body 1 flows into the dewatering tank 652 of the centrifuge 650 through the drain pipe 641. Due to the rotation of the dewatering tank 652, the drainage is affected by the centrifugal force of the dewatering tank 652. The processing waste is pushed to the outer periphery of the dewatering tank 652 by the action of the centrifugal force, and accumulates from the outer periphery to the inner periphery of the dewatering tank 652. At this time, the water from which the processing waste having a high specific gravity (processing waste having a large particle) is separated is pushed upward of the dewatering tank 652 and filtered by the filter 654. The water from which fine particles of processing waste are separated by the filter 654 is blown out from the upper part of the dewatering tank 652 and collected in the water collecting case 642. In addition, the filter 654 is clogged, and the water that has not been filtered (processed waste is separated by centrifugation) is blown off from the gap 656 formed between the fixing member 655 and the drain pipe 641 to catch water. The collecting case 642 is received. Water in the water collection case 642 is guided to the grinding water tank 630 through the pipe 643. Thus, the processing waste and the grinding water are separated by the centrifugal separator 650.

  As the dewatering tank 652 rotates, the air containing the odor in the processing chamber 20 is sucked into the dewatering tank 652 from the drain pipe 641 together with the drainage, and is discharged from the filter 654 and the gap 656 at the top of the dewatering tank 652. . The suction force generated by the centrifugal separator 650 is generated by generating a rotating airflow around the drain pipe 641 accompanying the rotation of the dewatering tank 652 itself and pushing the rotating airflow to the outside (upward) of the dewatering tank 652. . Since the inside of the housing 640 is substantially sealed, the air discharged from the dewatering tank 652 is guided to the grinding water tank 630 side from the pipe 643 serving as the grinding water outlet.

  FIG. 3 is a control block diagram of the deodorizing system 10. The control unit 70 is connected to a motor 653 of the centrifugal separator 650, a water absorption pump 602, and a motor 812 that rotates the fan 811 of the deodorizing device 8. The control unit 70 receives a designation signal accompanying the processing of the processing apparatus main body 1 and controls the driving thereof.

  Next, the deodorizing operation of the odor generated with the processing of the spectacle lens will be described. In FIG. 2, the flow of the airflow of each device generated by the processing operation of the spectacle lens is indicated by bold arrows. First, the operator sets processing conditions on the touch panel 50 and sets the spectacle lens LE on the chuck shaft 101 </ b> R in the processing chamber 20. When the processing start switch of the switch unit 51 is pressed, processing of the lens LE is started, and a command is sent from the control unit 70 to the drive motor 652 and the motor 812, and rotation of the dewatering tank 652 and the fan 811 is started. .

  When the lens LE is processed while being supplied with the grinding water from the nozzle 600, the waste water containing the processing waste flows into the rotating dewatering tank 652, and the processing waste and the grinding water are separated as described above. At this time, the odor generated in the processing chamber 20 is sucked into the dewatering tank 652 through the drain pipes 3a and 641 by the suction force generated with the rotation of the dewatering layer 652. Thereafter, the odor discharged from the dewatering tank 652 flows into the space above the grinding water tank 630 through the grinding water discharge path together with the grinding water from which the processing waste is separated. A part of the air flowing into the grinding tank 630 flows into the deodorizing device 8 through the intake pipe 670 by the suction force of the deodorizing device 8.

  Since the dewatering tank 652 of the centrifuge 650 is rotated at a high speed as described above, a strong suction force is generated along with the rotation, and the odor of the processing chamber 20 is sucked through the drain pipes 3a and 641. If the suction power of the deodorizing device 8 is stronger than the suction power of the centrifugal separator 650 and the deodorizing ability is high, the air containing the odor flowing into the grinding water tank 630 is processed by the deodorizing device 8. However, in order to do so, the ability of the blower 810 and the deodorizing filter 802 of the deodorizing device 8 must be enhanced, and the deodorizing device having a structure that is conventionally connected directly to the processing chamber 20 without using the centrifuge 650. A device that is considerably larger than the device is required. When the deodorizing device 8 is enlarged, the deodorizing device 8 cannot be accommodated in the table 2 shown in FIG. 1, and a large installation space is required. In addition, the manufacturing cost is high, which is economically disadvantageous.

  Here, the casing 640 and the tank 630 of the centrifuge 650 have a certain degree of internal sealing by the upper cover 640a, the cylindrical cover 657, the lid member 631, and the like, but they are completely sealed. is not. For this reason, if the exhaust pipe 680 is not provided, the air containing the odor that has flowed into the tank 630 cannot be sucked by the deodorizing device 8, and the pressure in the tank 630 is increased by the air fed by the centrifuge 650. (Positive pressure), and the odor leaks to the outside through the gap of the tank 630 and the like. Alternatively, odor leaks to the outside through a gap in the casing 640 of the centrifuge 650, a gap in the grinding water discharge path, and a gap in the processing chamber 20.

  Therefore, an exhaust pipe 680 is used to suppress leakage of these odors. The air containing the odor in the tank 630 that has not been completely sucked by the deodorizing device 8 flows into the tank 630 from the centrifuge 650 and is guided to the processing chamber 20 of the processing apparatus main body 1 through the exhaust pipe 680. Thereby, the housing 640, the grinding water discharge path, and the inside of the tank 630 do not become positive pressure, and odor leakage is suppressed. The odor generated when the lens LE is processed is proportional to the processing amount of the lens LE. Most of the processing amount of the lens LE occurs during rough processing with a roughing grindstone, and is small in the finishing processing with a finishing grindstone performed thereafter. The odor in the tank 630 is returned to the processing chamber 20 through the exhaust pipe 680. However, while the centrifuge 650 is driven, the odor is sucked by the centrifuge 650 again, and the odor generated in the finishing process is reduced. Furthermore, after the processing of the lens LE by the processing apparatus main body 1 is completed, the time is measured by the timer function of the control unit 70, and the centrifuge 650 and the deodorizing apparatus 8 are driven for a predetermined time. By providing the exhaust pipe 680, odor-containing air is circulated between the tank 630, the processing chamber 20, and the centrifuge 650, but is deodorized by driving the deodorizing device 8 after the processing is completed. , Deodorizing efficiency is increased.

  With the configuration as described above, the deodorizing apparatus 8 is not enlarged, and the sealing degree of the processing chamber 20 of the processing apparatus main body 1, the casing 640 of the centrifuge 650, the tank 630, and the like is not extremely high. In addition, leakage of odors from these can be suppressed and deodorization can be performed efficiently.

It is an external appearance perspective view of the deodorizing system of spectacle lens periphery processing. It is a schematic block diagram of a deodorizing system. It is a control block diagram of a deodorizing system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing apparatus main body 3 Grinding water supply apparatus 8 Deodorizing apparatus 10 Deodorizing system 20 Processing chamber 602 Water supply pump 630 Tank 650 Centrifuge 652 Dehydration tank 670 Intake pipe 680 Exhaust pipe

Claims (1)

Circulating grinding in which the grinding water stored in the grinding water tank is pumped up by a pump and supplied to the spectacle lens peripheral processing device, and the grinding water discharged from the processing chamber of the processing device is returned to the tank and reused. A deodorizing system for processing a peripheral edge of a spectacle lens that includes a water supply device and deodorizes odor generated when a lens is processed in the processing chamber ,
It has a dewatering tank into which grinding water containing processing waste discharged from the processing chamber is introduced, and the grinding water and processing waste are separated by rotating the dewatering tank, and the separated grinding water is discharged out of the dewatering tank. A centrifuge to
Grinding water that also serves as an exhaust path that guides the grinding water discharged from the centrifuge to the grinding water tank and discharges air containing odor sucked from the processing chamber to the grinding water tank by the rotation of the dewatering tank. A discharge path;

A deodorizing device connected to the upper surface of the tank above the water surface via an intake pipe, and sucking the air exhausted into the tank to deodorize the odor;
An exhaust pipe that guides air in the tank, and connects the upper part of the tank above the water surface and the processing chamber to guide the air exhausted into the tank to the processing chamber without passing through the deodorizing device. Exhaust pipe to
A deodorizing system for processing a peripheral edge of a spectacle lens, comprising: