Filtering device for processing waterborne polyurethane

Abstract

The utility model discloses a filtering device for processing waterborne polyurethane, which is characterized in that a feeding hole is formed in the top of a filtering box, a filtering net is fixed in the filtering box, the appearance of the filtering net is arc-shaped, the middle of the filtering net is high, two sides of the filtering net are low, and an impurity collecting mechanism is arranged at each of the left end and the right end of the filtering net. The impurity collecting mechanism is detachably connected with the filtering box, an automatic cleaning mechanism used for cleaning the filtering net is installed on the filtering box and comprises a supporting shaft, a lengthening frame, a telescopic rod, a lengthening rod, a cleaning brush and a driving mechanism, the supporting shaft is rotationally connected to the filtering box, the lengthening frame is fixed to the supporting shaft, the telescopic rod is fixed to the top of the lengthening frame, and the cleaning brush is fixed to the supporting shaft. A lengthening rod extending into the filter box is fixed to the output end of the telescopic rod, a cleaning brush is fixed to the bottom of the lengthening rod, and a driving mechanism used for driving the supporting shaft to rotate is installed on the filter box. According to the utility model, impurities can be conveniently filtered, collected and cleaned, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterborne polyurethane processing, in particular to a filtering device used for waterborne polyurethane processing. Background Art

[0002] Waterborne polyurethane is a new type of polyurethane system that uses water instead of organic solvents as a dispersion medium. It is also called water-dispersible polyurethane, water-based polyurethane or water-based polyurethane. Waterborne polyurethane uses water as a solvent and has the advantages of being pollution-free, safe and reliable, having excellent mechanical properties, good compatibility, and being easy to modify.

[0003] When producing waterborne polyurethane, some insoluble solid particles will be mixed in the product, and the impurities need to be filtered out. At present, filter screens are mostly used to filter impurities. However, the existing filter screens are mostly flat, and impurities are easily accumulated on the filter screens during filtration, causing the filtering performance of the filter screen to decrease. In addition, the existing filter screens need to be manually disassembled and cleaned after being used for a period of time, which is troublesome. Therefore, in view of the above situation, it is urgent to develop a filtering device for waterborne polyurethane processing that is convenient for filtering, collecting and cleaning impurities and saves manpower, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The utility model aims to provide a filtering device for waterborne polyurethane processing to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A filtering device for processing waterborne polyurethane, comprising a filter box, an automatic cleaning mechanism, a filter screen, an impurity collecting mechanism and a latch, wherein a feeding port is arranged on the top of the filter box, a filter screen is fixed in the filter box, the outer surface of the filter screen is in an arc shape, the middle of the filter screen is higher and the two sides are lower, the feeding port is located in the middle position just above the filter screen, an impurity collecting mechanism is arranged on both left and right ends of the filter screen, the impurity collecting mechanism is detachably connected to the filter box, an automatic cleaning mechanism for cleaning the filter screen is installed on the filter box, the automatic cleaning mechanism comprises: a support shaft, an extension frame, a telescopic rod, an extension rod, a cleaning brush and a driving mechanism, the support shaft is rotatably connected to the filter box, an extension frame is fixed on the support shaft, a telescopic rod is fixed on the top of the extension frame, an extension rod extending into the filter box is fixed on the output end of the telescopic rod, a cleaning brush is fixed on the bottom of the extension rod, and a driving mechanism for driving the support shaft to rotate is installed on the filter box.

[0007] Preferably: the driving mechanism includes: a driving motor, a first gear and a second gear, the driving motor is fixed to the outside of the filter box, the output shaft of the driving motor is equipped with a first gear, one side of the first gear is equipped with a second gear meshing with the first gear, and the second gear is installed on a supporting shaft.

[0008] Preferably, the central axis of the support shaft coincides with the central axis of the filter screen.

[0009] Preferably, the impurity collecting mechanism comprises: an impurity collecting mesh box, a base plate, a handle and a ferrule, the base plate is inserted into the filter box, the impurity collecting mesh box is fixed on the inner side of the base plate, the handle is fixed on the outer side of the base plate, and two ferrules are fixed on the outer side of the base plate.

[0010] Preferably, a latch which is inserted into the ferrule is detachably mounted on the filter box.

[0011] Preferably: a slide groove for moving the extension rod is provided on the filter box, and a discharge port is provided at the lower end of the filter box.

[0012] The beneficial effects of the utility model are as follows: when the filtering device for water-based polyurethane processing is used, materials are added from the feeding port, the materials are filtered by the filter screen, and the filtered materials are discharged from the discharge port. The arc shape design of the filter screen can facilitate the impurities on the filter screen to automatically slide to the left and right ends, thereby reducing the accumulation of impurities on the filter screen, so as to ensure the filtering performance of the filter screen. When cleaning, the first gear and the second gear are driven to rotate by the driving motor, and the support shaft, the extension frame, the telescopic rod, the extension rod, and the cleaning brush are driven to rotate by the second gear, so that the cleaning brush is rotated to the middle position just above the filter screen, and then the telescopic rod drives the cleaning brush to rotate. The extension rod and the cleaning brush move downward so that the cleaning brush is attached to the cleaning filter net, and the driving mechanism drives the supporting shaft, the extension frame, the telescopic rod, the extension rod, and the cleaning brush to rotate to the left so that the garbage in the left half of the filter net is cleaned into the impurity collection mechanism, and then the telescopic rod drives the extension rod and the cleaning brush to retract upward, and then the cleaning brush is rotated to the middle position just above the filter net, and then the cleaning brush is moved downward to attach to the cleaning filter net, and then the driving mechanism drives the supporting shaft and the cleaning brush to rotate to the right so that the garbage in the right half of the filter net is cleaned into the impurity collection mechanism, and finally, the impurity collection mechanism is removed and the garbage therein is poured out. In summary, the utility model is convenient for filtering, collecting, and cleaning impurities, and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the back structure of the utility model.

[0015] Figure 3 It is an internal sectional view of the present utility model.

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the disassembled state.

[0017] Figure 5 It is a partial structure diagram of the utility model Figure 1 .

[0018] Figure 6 It is a partial structure diagram of the utility model Figure 2 .

[0019] Legend:

[0020] 1. Filter box; 101. Feeding port; 102. Slide; 103. Discharge port; 2. Automatic cleaning mechanism; 201. Support shaft; 202. Extension frame; 203. Telescopic rod; 204. Extension rod; 205. Cleaning brush; 206. Driving mechanism; 2061. Driving motor; 2062. First gear; 2063. Second gear; 3. Filter net; 4. Impurity collecting mechanism; 401. Impurity collecting net box; 402. Base plate; 403. Handle; 404. Card sleeve; 5. Latch. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Specific examples are given below.

[0023] See also Figure 1 to Figure 6In an embodiment of the utility model, a filtering device for water-based polyurethane processing includes a filter box 1, an automatic cleaning mechanism 2, a filter screen 3, an impurity collecting mechanism 4 and a latch 5. A feeding port 101 is provided on the top of the filter box 1, and a discharge port 103 is provided on the lower end of the filter box 1. A filter screen 3 is fixed in the filter box 1. The outer surface of the filter screen 3 is in an arc shape, and the middle of the filter screen 3 is high and the two sides are low. The arc shape design of the filter screen 3 can facilitate the impurities on the filter screen 3 to automatically slide to the left and right ends, thereby reducing the accumulation of impurities in the filter screen 3, so as to ensure the filtering performance of the filter screen 3. The feeding port 101 is located in the middle position just above the filter screen 3, so that when feeding from the feeding port 101, the material can directly fall into In the middle of the filter 3, an impurity collecting mechanism 4 is arranged at both the left and right ends of the filter 3, and the impurity collecting mechanism 4 is detachably connected to the filter box 1. The filter box 1 is installed with an automatic cleaning mechanism 2 for cleaning the filter 3, and the automatic cleaning mechanism 2 comprises: a support shaft 201, an extension frame 202, a telescopic rod 203, an extension rod 204, a cleaning brush 205 and a driving mechanism 206. The support shaft 201 is rotatably connected to the filter box 1, and the central axis of the support shaft 201 coincides with the central axis of the filter 3 (that is, the circle where the support shaft 201 is located is concentric with the circle where the filter 3 is located), the support shaft 201 is fixed with an extension frame 202, and the top of the extension frame 202 is fixed with a telescopic rod 203. An extension rod 204 extending into the filter box 1 is fixed to the output end of the telescopic rod 203, a slide groove 102 for moving the extension rod 204 is provided on the filter box 1, a cleaning brush 205 is fixed to the bottom of the extension rod 204, a driving mechanism 206 for driving the support shaft 201 to rotate is installed on the filter box 1, and the driving mechanism 206 includes: a driving motor 2061, a first gear 2062 and a second gear 2063, the driving motor 2061 is fixed to the outside of the filter box 1, a first gear 2062 is installed on the output shaft of the driving motor 2061, a second gear 2063 meshing with the first gear 2062 is installed on one side of the first gear 2062, and the second gear 2063 is installed on the support shaft 2 01, when the automatic cleaning mechanism 2 is not in use, the cleaning brush 205 is separated from the filter screen 3, and the cleaning brush 205 is parked in a position not directly below the feeding port 101 to prevent the cleaning brush 205 from blocking the incoming materials from the feeding port 101. When cleaning, the first gear 2062 and the second gear 2063 are driven to rotate by the driving motor 2061, and the support shaft 201, the extension frame 202, the telescopic rod 203, the extension rod 204, and the cleaning brush 205 are driven to rotate by the second gear 2063, so that the cleaning brush 205 rotates to the middle position directly above the filter screen 3, and then the extension rod 204 and the cleaning brush 205 are driven to move downward by the telescopic rod 203, so that the cleaning brush 205 is attached to the cleaning filter screen 3.The driving mechanism 206 then drives the support shaft 201, the extension frame 202, the telescopic rod 203, the extension rod 204, and the cleaning brush 205 to rotate to the left, so that the garbage on the left half of the filter 3 is cleaned into the impurity collection mechanism 4, then the telescopic rod 203 drives the extension rod 204 and the cleaning brush 205 to be retracted upward, and then the cleaning brush 205 is rotated to the middle position just above the filter 3, and then the cleaning brush 205 is moved down to the cleaning filter 3, and then the driving mechanism 206 drives the support shaft 201 and the cleaning brush 205 to rotate to the right, so that the garbage on the right half of the filter 3 is cleaned into the impurity collection mechanism 4, and finally, the impurity collection mechanism 4 is removed and the garbage therein is poured out.

[0024] The impurity collecting mechanism 4 includes: an impurity collecting mesh box 401, a base plate 402, a handle 403 and a ferrule 404. The base plate 402 is inserted into the filter box 1. The impurity collecting mesh box 401 is fixed on the inner side of the base plate 402. The handle 403 is fixed on the outer side of the base plate 402. Two ferrules 404 are fixed on the outer side of the base plate 402. The filter box 1 is detachably provided with a latch 5 inserted into the ferrule 404. When in use, impurities are collected through the impurity collecting mesh box 401. When disassembling, the latch 5 is unplugged, and then the handle 403 is pulled to unplug the base plate 402 and the impurity collecting mesh box 401 from the filter box 1. Then, the garbage collected in the impurity collecting mesh box 401 can be poured out.

[0025] Working principle: When the filtering device for water-based polyurethane processing is used, materials are added from the feeding port 101, and the materials are filtered by the filter 3, and the filtered materials are discharged from the discharge port 103. The arc shape design of the filter 3 can facilitate the impurities on the filter 3 to automatically slide to the left and right ends, thereby reducing the accumulation of impurities in the filter 3, so as to ensure the filtering performance of the filter 3. When cleaning, first drive the first gear 2062 and the second gear 2063 to rotate through the driving motor 2061, and drive the support shaft 201, the extension frame 202, the telescopic rod 203, the extension rod 204, and the cleaning brush 205 to rotate through the second gear 2063, so that the cleaning brush 205 rotates to the middle position just above the filter 3, and then drive the extension rod 204 and the cleaning brush 205 through the telescopic rod 203. The brush 205 moves downward so that the cleaning brush 205 sticks to the cleaning filter 3, and the driving mechanism 206 drives the supporting shaft 201, the extension frame 202, the telescopic rod 203, the extension rod 204, and the cleaning brush 205 to rotate leftward, so that the garbage on the left half of the filter 3 is cleaned into the impurity collecting mechanism 4, and then, the telescopic rod 203 drives the extension rod 204 and the cleaning brush 205 to retract upward, and then the cleaning brush 205 is rotated to the middle position just above the filter 3, and then, the cleaning brush 205 moves downward and sticks to the cleaning filter 3, and then, the driving mechanism 206 drives the supporting shaft 201 and the cleaning brush 205 to rotate rightward again, so that the garbage on the right half of the filter 3 is cleaned into the impurity collecting mechanism 4, and finally, the impurity collecting mechanism 4 is removed and the garbage therein is poured out.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filtering device for waterborne polyurethane processing, characterized in that: The invention comprises a filter box (1), an automatic cleaning mechanism (2), a filter screen (3), an impurity collecting mechanism (4) and a latch (5); a feeding port (101) is arranged on the top of the filter box (1); a filter screen (3) is fixed inside the filter box (1); the outer surface of the filter screen (3) is in an arc shape and the middle of the filter screen (3) is higher and the two sides are lower; the feeding port (101) is located in the middle position just above the filter screen (3); an impurity collecting mechanism (4) is arranged on both the left and right ends of the filter screen (3); the impurity collecting mechanism (4) is detachably connected to the filter box (1); an automatic cleaning mechanism (2) for cleaning the filter screen (3) is installed on the filter box (1); the automatic cleaning mechanism (2) for cleaning the filter screen (3) is installed on the filter box (1); the automatic cleaning mechanism (4) is installed on the filter box (1); the automatic cleaning mechanism (2) is installed on the filter box (1); the automatic cleaning mechanism (4 ... The mechanism (2) comprises: a support shaft (201), an extension frame (202), a telescopic rod (203), an extension rod (204), a cleaning brush (205) and a driving mechanism (206); the support shaft (201) is rotatably connected to the filter box (1); the extension frame (202) is fixed to the support shaft (201); the top of the extension frame (202) is fixed with the telescopic rod (203); the output end of the telescopic rod (203) is fixed with the extension rod (204) extending into the filter box (1); the bottom of the extension rod (204) is fixed with the cleaning brush (205); and the filter box (1) is provided with a driving mechanism (206) for driving the support shaft (201) to rotate.

2. The filtering device for waterborne polyurethane processing according to claim 1, characterized in that: The driving mechanism (206) comprises: a driving motor (2061), a first gear (2062) and a second gear (2063); the driving motor (2061) is fixed to the outside of the filter box (1); the first gear (2062) is mounted on the output shaft of the driving motor (2061); a second gear (2063) meshing with the first gear (2062) is mounted on one side of the first gear (2062); and the second gear (2063) is mounted on the support shaft (201).

3. The filtering device for waterborne polyurethane processing according to claim 1, characterized in that: The central axis of the support shaft (201) coincides with the central axis of the filter screen (3).

4. The filtering device for waterborne polyurethane processing according to claim 1, characterized in that: The impurity collection mechanism (4) comprises: an impurity collection net box (401), a base plate (402), a handle (403) and a ferrule (404); the base plate (402) is inserted into the filter box (1); the impurity collection net box (401) is fixed on the inner side of the base plate (402); the handle (403) is fixed on the outer side of the base plate (402); and two ferrules (404) are fixed on the outer side of the base plate (402).

5. The filtering device for waterborne polyurethane processing according to claim 4, characterized in that: The filter box (1) is detachably provided with a latch (5) which is inserted into the ferrule (404).

6. The filtering device for waterborne polyurethane processing according to claim 1, characterized in that: The filter box (1) is provided with a slide groove (102) for moving the extension rod (204), and the lower end of the filter box (1) is provided with a discharge port (103).

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