Filtering device and optical lens grinding and polishing system

Abstract

The utility model provides a filtering device which comprises a filtering box body, a liquid inlet hopper is fixedly connected to the center of the top surface of the filtering box body, a filtering net plate for dividing the filtering box body into an upper cavity and a lower cavity is further arranged in the filtering box body, and a liquid discharge pipe communicated with the filtering box body is further fixedly connected to the top of the filtering box body; a filtering disc is further detachably connected into the filtering box body, the filtering disc is located at the top of the upper cavity, the center of the filtering disc is provided with an upward protruding part in an upward protruding mode, and the liquid inlet hopper and the filtering disc have coincident center lines; a plurality of first filtering holes are formed in the filtering disc and the upper convex part, a plurality of second filtering holes are formed in the filtering net plate, and the hole diameter of the first filtering holes is larger than that of the second filtering holes. The utility model further provides an optical lens grinding and polishing system. The problem that in the prior art, waste liquid continuously falls to one position of a filter screen plate after being guided in, and the position is likely to be blocked rapidly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lens grinding and polishing equipment, in particular to a filtering device and an optical lens grinding and polishing system. Background Art

[0002] During the processing of optical lenses, grinding and polishing are required to make the mirror surface of the optical lenses smooth. In the prior art, during the operation of the grinding and polishing equipment, it is necessary to use auxiliary grinding fluid to remove the debris generated during the grinding and polishing process, and at the same time reduce the temperature of the grinding position of the optical lens to ensure smooth grinding and polishing. During the grinding and polishing process of the optical lens, grinding fluid will be used continuously, generating a large amount of waste liquid. These waste liquids contain particulate impurities, which can be reused after filtering, thus saving the cost of using the grinding fluid for grinding and polishing. In the prior art, a filtering device can generally be used to filter the waste liquid. The filtering device may include a filter box, and a filter screen is provided in the filter box. After the waste liquid enters the box, it can be filtered through the filter screen. During actual operation, a liquid inlet hopper is generally provided on the top of the filter box for the waste liquid to enter. However, this will cause the waste liquid to mainly fall on one place on the filter screen, and eventually impurities will quickly accumulate there, resulting in rapid blockage, which has an adverse effect on filtration. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a filtering device, which solves the problem in the prior art that waste liquid continuously falls onto a portion of the filter screen after being introduced, which may cause rapid blockage at that portion.

[0004] According to an embodiment of the present utility model, a filter device includes a filter box body, a liquid inlet hopper is fixedly connected to the center of the top surface of the filter box body, a filter screen plate is also provided in the filter box body to separate it into an upper chamber and a lower chamber, and a drain pipe connected to the top of the filter box body is also fixedly connected; a filter plate is also detachably connected to the filter box body, the filter plate is located at the top of the upper chamber and is provided with an upper convex portion protruding upward at the center, and the liquid inlet hopper and the filter plate have overlapping center lines; a plurality of first filter holes are provided on the filter plate and the upper convex portion, and a plurality of second filter holes are provided on the filter screen plate, and the aperture of the first filter hole is larger than the aperture of the second filter hole.

[0005] In the above embodiment, after the waste liquid enters the liquid inlet hopper, it passes through the filter plate and then falls onto the filter screen plate below. The upward protrusion at the center of the filter plate can make the waste liquid diffuse toward the periphery, so that the waste liquid falls through the filter plate and the multiple first filter holes on the upper protrusion, covering a larger range of the filter screen plate, thereby avoiding the situation where a certain place on the filter screen plate is quickly clogged, and solving the problem in the prior art that the waste liquid continues to fall onto a place on the filter screen plate after being introduced, which may cause rapid clogs at that place.

[0006] Furthermore, the upper convex portion extends upward into the liquid inlet hopper, and an annular gap is provided between the liquid inlet hopper and the outer edge of the upper convex portion.

[0007] Furthermore, an interception net located above the upper convex portion is connected to the liquid inlet hopper, and a plurality of mesh holes with a larger aperture than the first filter hole are provided on the interception net.

[0008] Furthermore, a door for opening and closing the upper chamber is provided on the side of the filter box.

[0009] Furthermore, a plurality of support blocks located below the door body are fixedly connected to the filter box body, and the filter screen plates are mounted on the support blocks.

[0010] Furthermore, the outer edge of the filter disc is fixedly connected to a connecting tube, which extends upward and has an upper end connected to the filter box.

[0011] Furthermore, a connecting ring is fixedly connected to the upper end of the connecting cylinder, and the connecting ring is connected to the filter box body through bolts.

[0012] Furthermore, a plurality of through frames are provided on the connecting tube.

[0013] According to an embodiment, an optical lens grinding and polishing system including the above-mentioned filtering device is also provided, which includes a body and a liquid outlet pipe connected to the body, and the end of the liquid outlet pipe facing away from the body extends obliquely downward into the liquid inlet bucket.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By means of the filter plate and the upper convex portion arranged in the filter box, the waste liquid entering the liquid inlet hopper can be dispersed toward the periphery, and gradually falls through the first filter hole during the dispersion process, and finally the waste liquid can cover a larger range of the filter screen plate, thereby avoiding the situation where a certain place on the filter screen plate is quickly clogged, and solving the problem in the prior art that the waste liquid may cause rapid clogging at one place of the filter screen plate due to continuous falling onto the filter screen plate after being introduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at center A;

[0018] In the above drawings:

[0019] Filter box 1, liquid inlet hopper 2, upper chamber 3, lower chamber 4, filter screen plate 5, drain pipe 6, filter disc 7, upper convex portion 8, annular gap 9, intercepting net 10, door body 11, support block 12, connecting cylinder 13, connecting ring 14, through frame 15, main body 16, liquid outlet pipe 17. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0022] In an exemplary embodiment, Figure 1 、 2 As shown, this embodiment provides a filtering device, which includes a filter box 1, a liquid inlet hopper 2 is fixedly connected to the center of the top surface of the filter box 1, and a filter screen plate 5 is provided in the filter box 1 to separate it into an upper chamber 3 and a lower chamber 4. The top of the filter box 1 is also fixedly connected to a drain pipe 6 connected thereto; a filter disc 7 is also detachably connected to the filter box 1, and the filter disc 7 is located at the top of the upper chamber 3 and has an upper protrusion 8 protruding upward at the center, and the liquid inlet hopper 2 and the filter disc 7 have overlapping center lines; a plurality of first filter holes are provided on the filter disc 7 and the upper protrusion 8, and a plurality of second filter holes are provided on the filter screen plate 5, and the aperture of the first filter hole is larger than the aperture of the second filter hole.

[0023] In the above embodiment, after the waste liquid enters the liquid inlet hopper 2, it passes through the filter disc 7 and then falls onto the filter screen plate 5 below. The upper convex portion 8 protruding upward at the center of the filter disc 7 can cause the waste liquid to spread toward the periphery, thereby causing the waste liquid to fall through the filter disc 7 and the multiple first filter holes on the upper convex portion 8. The first filter holes are larger and do not mainly play a filtering role (the second filter holes play a filtering role). However, due to the provision of the upper convex portion 8, the waste liquid will spread out to the surroundings and gradually pass through the first filter holes during the spreading process, thereby being able to cover a larger range of the filter screen plate 5, thereby avoiding the situation where a certain point on the filter screen plate 5 is quickly blocked. This solves the problem in the prior art that the waste liquid continues to fall onto a certain point of the filter screen plate 5 after being introduced, which may cause a rapid blockage at that point. In more detail, the upper convex portion 8 extends upward into the liquid inlet hopper 2, and there is an annular gap 9 between the liquid inlet hopper 2 and the outer edge of the upper convex portion 8. At the same time, there is an arc-shaped transition between the upper convex portion 8 and the filter disc 7, so that the waste liquid can smoothly transition to the filter disc 7.

[0024] like Figure 1 As shown, in a further exemplary embodiment, an interception net 10 located above the upper protrusion 8 is also connected to the liquid inlet hopper 2, and the interception net 10 is provided with several mesh holes with a pore size larger than the first filter hole. The interception net 10 is used to intercept foreign matter and prevent foreign matter from entering the filter box 1.

[0025] like Figure 1 、 2 As shown, in order to facilitate cleaning of the filter box 1, a door body 11 for opening and closing the upper chamber 3 is further provided on the side of the filter box 1. In more detail, a plurality of support blocks 12 located below the door body 11 are fixedly connected to the filter box 1, and the filter screen plate 5 is placed on the support blocks 12, so that the filter screen plate 5 can be cleaned by opening the door body 11; further, the outer edge of the filter disc 7 is also fixedly connected to a connecting cylinder 13, which extends upward and its upper end is also fixedly connected to a connecting ring 14, which is connected to the filter box 1 by bolts, thus realizing the installation of the filter disc 7 and facilitating disassembly for subsequent maintenance work; a plurality of through frames 15 are also provided on the connecting cylinder 13, which can be equidistantly surrounded by the connecting cylinder 13. When the amount of waste liquid entering is large, these through frames 15 are also used for waste liquid to pass through, so as to avoid the waste liquid from being retained on the filter disc 7 due to the large amount.

[0026] like Figure 1 As shown, in another embodiment, an optical lens grinding and polishing system is also provided, which includes a main body 16 and a liquid outlet pipe 17 connected to the main body 16, and the end of the liquid outlet pipe 17 away from the main body 16 extends obliquely downward into the liquid inlet bucket 2.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A filtering device, characterized in that: The filter box comprises a filter housing, a liquid inlet hopper is fixedly connected to the center of the top surface of the filter housing, a filter screen plate is also provided in the filter housing to separate it into an upper chamber and a lower chamber, and a drain pipe connected to the top of the filter housing is also fixedly connected; a filter disc is detachably connected to the filter housing, the filter disc is located at the top of the upper chamber and is provided with an upper convex portion protruding upward at the center, the liquid inlet hopper and the filter disc have overlapping center lines; a plurality of first filter holes are provided on the filter disc and the upper convex portion, and a plurality of second filter holes are provided on the filter screen plate, and the aperture of the first filter hole is larger than the aperture of the second filter hole.

2. The filtering device according to claim 1, wherein The upper convex portion extends upward into the liquid inlet hopper, and an annular gap is formed between the liquid inlet hopper and the outer edge of the upper convex portion.

3. The filtering device according to claim 2, characterized in that The liquid inlet hopper is further connected to an interception net located above the upper convex portion, and the interception net is provided with a plurality of mesh holes with a larger aperture than the first filter hole.

4. The filtering device according to claim 1, wherein A door for opening and closing the upper chamber is also provided on the side of the filter box.

5. The filtering device according to claim 4, characterized in that The filter box body is further fixedly connected with a plurality of support blocks located below the door body, and the filter screen plates are mounted on the support blocks.

6. The filtering device according to any one of claims 1 to 5, characterized in that The outer edge of the filter disc is also fixedly connected with a connecting cylinder, which extends upward and has an upper end connected to the filter box.

7. The filtering device according to claim 6, characterized in that The upper end of the connecting cylinder is also fixedly connected with a connecting ring, and the connecting ring is connected to the filter box through bolts.

8. The filtering device according to claim 6, wherein The connecting tube is also provided with a plurality of through frames.

9. An optical lens grinding and polishing system, characterized in that: The filter comprises the filter device according to any one of claims 1 to 8.

10. The optical lens grinding and polishing system according to claim 9, wherein: The utility model comprises a main body and a liquid outlet pipe connected to the main body, wherein one end of the liquid outlet pipe, which is away from the main body, extends obliquely downward into the liquid inlet hopper.

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