KR20220002807U - Polishing water filtration device to prevent backflow of polishing water - Google Patents

Abstract

The present invention relates to a polishing water filtration device that prevents the backflow of polishing water used in the process of cutting spectacle lenses in a lens processing machine so that the polishing water can be reused. A filter for primary filtration of water is installed, and the filtered water firstly filtered in a filter device connected to the discharge pipe is secondly filtered in a rotating dehydration container with a secondary filter coupled thereto, and the amount of grinding greater than the capacity of the dehydration container is used. When the water is supplied, it is characterized in that the reverse flow is prevented so that the water does not flow back into the hopper.
As a result, it can be additionally installed and used in the existing lens processing machine, so the burden of installation restrictions and costs is low, the management (or maintenance) of the filtration device is easy, the workability is good, and the capacity is larger than the capacity of the dehydrator. Even if abrasive water is supplied, backflow can be prevented, so it is easy to manage the device and has high durability.

Description

Polishing water filtration device to prevent backflow of polishing water}

The present invention relates to a filtering device for filtering polishing water used in the cutting of spectacle lenses, and more specifically, to reuse the polishing water used in the polishing of spectacle lenses in a lens processing machine for cutting spectacle lenses suitable for eyeglass frames. Filtering the dust mixed in the polishing water and filtering the dust filter management (or maintenance) is easy, and a large amount of filtered water is supplied at once, and it is improved to limit overflow in an unfiltered state.

As is well known, the polishing water is used when cutting the spectacle lens in the lens processing machine, and the temperature is lowered so that the spectacle lens, which is mainly made of glass or plastic, is not damaged or deformed due to the heat generated during the polishing process for cutting. It is used to avoid damaging the spectacle lens by scattering the dust of fine particles generated by polishing.

In this way, the polishing water sprayed and used in the polishing process of cutting the spectacle lenses is directly discharged to the sewer while it is mixed with dust, or is collected in a certain amount and discharged at once. As time goes by, it hardens like mud and blocks the sewer and filter of the wastewater treatment plant that leads to the sewer, causing water pollution because the filtration is not performed properly. There are also issues that arise.

In order to solve this problem, Korean Patent Registration No. 10-1866436 discloses filtering dust from polishing water by adding a filter in the form of a sieve that is installed separately and connected to the drain pipe of the lens processing machine and assembled with a flange between the drain pipe and the sewer. do.

However, since the above design is installed separately from the lens processing machine, the burden of cost is high and installation restrictions may occur depending on the location, and it is difficult to check the filter state such as dust accumulation as it is used for a long time.

In addition, due to the delay in many work processes of disassembling and assembling the flange of the drain pipe and sewer in order to maintain the filter, the workability is not good and the filtration process cannot be performed as much as the delay due to the maintenance of the filter. There is also a falling problem.

In order to improve the above problems, we applied for Korean Patent Application No. 10-2020-0169701, which is additionally installed and used in the existing lens processor and easy to maintain the filter.

However, in the above-mentioned invention, when the dewatering container equipped with a filter is rotated at high speed to filter the polishing water, the filter is easily separated and the filtration efficiency decreases. However, there is a problem that the continuously supplied polishing water exceeds the capacity of the dewatering container and flows backward, and the polishing water and dust scatter and overflow or splash around.

Republic of Korea Patent Registration No. 10-18866436 Korean Patent Application No. 10-2020-0169701

The present invention, which was devised to solve the above problems, provides a filter device that is easy to install and manage, thereby reducing the burden of installation restrictions and costs, easy management (or maintenance) of the filter, and grinding that requires filtering. Its purpose is to restrict water from flowing backwards and overflowing in large quantities.

In the filtering device of the present invention for achieving the above object, a primary filter is installed in the first drain pipe for discharging the polishing water used in the lens processing machine to primarily filter large particle dust, and the primary filtered polishing water is second. It is characterized in that the small particle dust remaining by the centrifugal force of the rotating dehydrator with a built-in secondary filter is secondarily filtered to make reusable polishing water, stored in a supply device, and then supplied to the lens processing machine for reuse as needed. .

In addition, a reverse flow prevention hole is formed in the dehydration container cover to prevent backflow into the hopper by continuously supplying polishing water in a state in which a greater amount of polishing water than the capacity of the dehydration container is supplied or the polishing time of the polishing water is delayed. to be

The filtering device of the present invention can be additionally installed to be connected to an existing lens processor, so there are no restrictions and costs for installation, and the management (or maintenance) of the filter necessary for filtration is easy, so it has good workability and the capacity of the polishing water in the filter Workability and durability are improved by restricting the supply of more polishing water to prevent it from flowing back and overflowing.

1 is an overall perspective view showing the installation of the present invention
Figure 2 is a partial perspective view showing the installation of the present invention
Figure 3 is an exploded perspective view showing the filtering device of the present invention
Figure 4 is a cross-sectional view according to the use of the present invention

Hereinafter, the abrasive water filtration device for preventing the reverse flow of the polishing water of the present invention will be described in detail. This description is based on an embodiment for implementing the present invention, and the technical idea pursued by the present invention It is not intended to be limited to the form described in the embodiments described in the document, and it will be understood to include various modifications, equivalents and / or alternatives of the embodiments of the present invention.

In addition, even if the operational effect according to the configuration of the present invention is not explicitly described and described while explaining the embodiment of the present invention, it is natural that the predictable effect by the corresponding configuration should also be recognized.

The filtering device (1) of the present invention cuts the lens by filtering the dust mixed in the polishing water, and stores the lens processing machine (3) using the polishing water and the polishing water from which the dust is filtered, and supplies it again when necessary. It is characterized in that the device 2 is configured to be connected and uses a storage box 50 such as a cabinet as needed.

At the lower end of the lens processing machine 3, a first drain pipe 30 is connected to transfer the polishing water used in the polishing process for cutting the spectacle lens to the filtering device 1, and the first drain pipe connected to the filtering device 1 At the end of (30), a primary filter (31) made of a fabric having a flexible and dense structure is positioned to filter out large particle dust mixed in the polishing water.

At this time, the primary filter 31 is fixed with a filter fixing means 32 that is easy to attach and detach, such as a rubber ring having elasticity or a reusable tape, and is more firmly fixed using a fastening member such as a screw if necessary. can make it

The filtering device 1 is a device that receives the polishing water used in the lens processing machine 3 and filters the dust to make it reusable. The upper part is open, and the upper space 10-1 and the lower space 10 -2) includes the case 10.

In the upper space 10-1, a drain hole 18-1 for discharging the filtered polishing water, a second drain pipe 18 connected to the drain hole 18-1, and a dehydrator 11 having a plurality of through holes This position is located and a motor 12 connected to the dehydration container 11 and rotating the dehydration container 11 is located in the lower space 10-2.

At the upper end of the dehydration container 11, a flange portion 11-1 to be coupled with the dehydration container cover 14 is formed, and a secondary filter 13 is located inside to secondaryly filter the primary filtered polishing water. However, the secondary filter 13 is made of a fabric of the same or denser organization as the primary filter 31, and a hooking part 13-1 bent in a 'ㄱ' shape is formed at the top, and the hooking part 13 An iron core 13-2 for maintaining the shape of the hooking part 13-1 and being coupled to and supporting the dehydration container cover 14 is built into the inside of -1).

The dehydration container cover 14 is made of a transparent material so that the state of the secondary filter 13 located inside can be easily checked with the naked eye when coupled to the top of the dehydration container 11, and is easy to combine and separate, such as a butterfly bolt. A coupling member 15 is used.

In addition, a hooking groove 14-1 for fixing the hooking part 13-1 of the secondary filter 13 is formed on the lower surface that is in close contact with the dehydration container 11, so that the dehydration container cover 14 is When coupled to 11), the flange part 11-1 and the hooking part 13-1 are firmly fixed to prevent the dehydration container 11 from rotating or flowing down due to polishing water, and one or more backflow prevention holes (14-2) is formed to prevent the dewatering container 11 from overflowing by flowing back into the hopper 17 when the polishing water is full.

A case cover 16 for opening and closing the top of the case 10 is located above the dehydration bottle cover 14, and like the dehydration bottle cover 14, the secondary filter 12 and the dehydration bottle 11 are visually inspected. It is made of a transparent material so that the state can be checked, and at the top, a hopper 17 for receiving the polishing water discharged through the first drain pipe 30 and a support 17-1 for supporting the hopper 17 are formed. .

The supply device 2 filters the dust twice in the filter device 1, stores the polishing water that can be reused, and supplies it to the lens processing machine 3 as needed, and includes a water supply pipe 20, and the water supply pipe At (20), an auxiliary filter 21 for filtering the polishing water with remaining dust discharged through the backflow prevention hole 14-2 is located.

The storage box 50 protects the additionally installed filtration device 1 and the supply device 2 from external influences, and is used for aesthetic purposes such as tidying up and using a cabinet.

Looking at the operation of the present invention configured as above is as follows.

When the lens processing machine (3) is operated to cut the spectacle lens, the entire filtering device (1) including the lens processing machine (3) and the supply device (2) operate, and the polishing water stored in the supply device (2) is transferred to the water supply pipe. It is sent to the lens processing machine (3) through (20) for use, and the polishing water mixed with dust used in the polishing process is sent to the filtration device (1) and filtered twice to make it reusable, and the supply device (2) ) and continuously cycles what is sent to and stored.

More specifically, while polishing water mixed with dust used in the lens processing machine 3 is discharged to the first drain pipe 30, dust having large particles is primarily filtered out by the primary filter 31.

The polishing water that has passed through the primary filter 31 is sent to the dewatering container 11 by the hopper 17 and undergoes a secondary filtration process. Since it is rotating at RPM, the polishing water spreads throughout the inside of the dehydration bottle 11 by centrifugal force the moment it touches the bottom of the dehydration bottle 11, and the dehydration bottle cover 14 blocks the top so that the secondary filter 13 is removed. The remaining fine-sized dust is filtered through the filter.

At this time, if the filtration efficiency decreases due to dust accumulation in the secondary filter 13 coupled to the dehydration container 11, the working time for filtering and discharging the polishing water increases, and in the lens processing machine 3, the polishing used for polishing If the water is continuously discharged, at some point, when there is no space for the discharged polishing water in the dehydrator 11, the firstly filtered polishing water is discharged to the second drain pipe 18 little by little through the backflow prevention hole 14-2. By doing so, it is prevented from flowing back into the hopper 17 and overflowing.

The abrasive water secondaryly filtered in the rotating dehydrator 11 and the abrasive water discharged to the top of the dehydrator 11 through the anti-backflow hole 14-2 to prevent backflow flow to the upper space 10-1. It overflows into the supply device 2 through the second drain pipe 18 and is stored, and when the lens processing machine 3 requires polishing water, the stored polishing water is supplied through the water supply pipe 20 and reused.

At this time, the auxiliary filter 21 is located in the water supply pipe 20 to filter the dust remaining in the filtered water once again.

After filtering and reusing the abrasive water several times, the operator stops the operation of the entire device to check the condition of the primary filter (31), and then separates the filter fixing means (32) to wash the primary filter (31) or use a new product. , and the secondary filter (13) passes through the dehydrator cover (14) made of a transparent material and the case cover (16) to check the state of the coupled secondary filter (13), and then separates the primary filter ( 31), wash the secondary filter 13 or replace it with a new one, and reassemble so that the hooking part 13-1 enters the hooking groove 14-1 and is properly fixed.

At this time, the filters 13 and 31 are made of a material that can be disposed of together with the filtered dust or a material that can be washed and reused after discarding only the dust separately, and are selected and used as necessary.

This filtering device has fewer restrictions for additional installation in the existing lens processor, less economic burden required for installation, and divides the used polishing water into two to filter it, making it suitable for reuse. costs are also reduced.

In addition, as the filtration rate of the polishing water for filtering is slowed, even if a greater amount of polishing water is supplied than the capacity, it prevents overflow by flowing back, and the filter is easy to manage (or maintain) and has good workability.

1: Filtration device
10: case
10-1: upper space 10-2: lower space
11: dehydration
11-1: Flange part
12: motor
13: 2nd order filter
13-1: hanging part 13-2: iron core
14: dehydrator cover
14-1: Locking groove 14-2: Backflow prevention hole
15: coupling member
16: case cover
17: Hopper
17-1: support
18: second drain pipe
18-1: drain hole
2: Feeder
20: water supply pipe
21: auxiliary filter
3: Lens processing machine
30: first drain pipe
31: 1st order filter
32: filter fixing means

Claims (1)

The primary filtered polishing water transported along the first drain pipe 30 is collected in the hopper 17 and transported to the dehydration cylinder 11, and the secondary filter 13 is coupled to the inside to rotate. Secondary filtration of dust by centrifugal force, transporting the secondary filtered polishing water to the supply device 2 through the second drain pipe 18, storing it, and supplying it to the lens processing machine 3 through the water supply pipe 20 as needed In the filtering device configured to repeatedly circulate the polishing water used for lens polishing in a reusable state,
At the upper end of the dehydration cylinder 11, a backflow prevention hole 14-2 for restricting the flow of abrasive water in a larger amount than the capacity of the dehydration cylinder 11 to prevent overflow and a locking groove for fixing the secondary filter 13 (14-1) is formed and the dewatering container cover 14 is combined to prevent the polishing water and dust from splashing or overflowing to the surroundings.

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