High-efficiency filtering and purifying device for paint production

Abstract

The utility model belongs to the technical field of coating production and processing matched equipment, especially relates to a high -efficient filtration and purification device for coating production, including the filter screen that sets up in the inner chamber of box, the filter screen is installed on the box through the driving shaft and can rotate axially, the vibration motor is fixedly installed at the filter screen bottom, the front side outer box wall and rear side outer box wall of box are equipped with the swing axle respectively, the swing axle is left and right horizontal, the sector plate that is provided with the same center shaft is respectively extended on each swing axle, through the axial rotation of swing axle, not only can drive the sector plate on it and cooperate the axial swing inwards to the corresponding frame of vertical upward close frame through setting on the box, thereby the free axial rotation of filter screen in the box is blocked, but also can drive the sector plate on it and the axial swing outward to reach the outside of box, thereby allowing the free axial rotation of filter screen in the box.

Description

Technical Field

[0001] This utility model belongs to the technical field of supporting equipment for paint production and processing, and specifically relates to a high-efficiency filtration and purification device for paint production. Background Technology

[0002] Impurities or foreign matter can be introduced at any stage of the paint production process, affecting the purity and quality of the paint. In severe cases, it can even cause the paint coating to peel off and fail to achieve the protective effect. Therefore, the paint often needs to be filtered and purified before filling during the paint production stage.

[0003] The presence of a filter screen effectively blocks particulate impurities in paint, thus purifying it. However, the mesh of the filter screen can also become clogged by the trapped particles, affecting the subsequent filtration rate of the paint. Therefore, the filter screen needs to be cleaned regularly. Many such filter devices require manual cleaning by removing the filter screen from the equipment and then reinstalling it, a cumbersome and time-consuming process. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-efficiency filtration and purification device for paint production, including a housing, on which a filtration mechanism and a baffle mechanism are installed.

[0005] The filtration mechanism includes a filter screen installed in the inner cavity of the box. The filter screen includes a wire mesh with a horizontal mesh surface. The wire mesh is horizontally and outwardly fixed to a matching frame that is also horizontally installed. Drive shafts extend horizontally away from the frame to the left and right respectively. Each drive shaft is axially rotatable and fits through the box body.

[0006] A vibration motor is fixedly installed at the bottom of the filter screen;

[0007] The baffle mechanism includes horizontal swing shafts mounted on the front and rear vertical outer walls of the housing via fixed seats. The swing shafts can rotate axially in conjunction with their fixed seats. A sector-shaped plate with a horizontal center axis extends outward from the swing shaft. The axial rotation of the swing shaft can not only drive the sector-shaped plate to swing inward through the housing to the corresponding frame side, thus blocking the filter screen from rotating freely axially around the drive shaft in the housing, but also drive the sector-shaped plate to swing outward to the outside of the housing, thus allowing the filter screen to rotate freely axially around the drive shaft in the housing.

[0008] Preferably, two first positioning holes are provided at intervals along the length of the arc edge near the arc edge of the fan-shaped plate, connecting the left and right surfaces of the fan-shaped plate.

[0009] The front and rear side panels of the box are respectively provided with through holes for the fan-shaped plate to pass through. Positioning plates extend outward from the front vertical outer wall and the rear vertical outer wall of the box, parallel to the surface of the fan-shaped plate, respectively, near the through holes. The positioning plates are provided with second positioning holes that connect the left and right sides of the plates.

[0010] During the process of the swing shaft rotating axially to drive the sector plate on it to swing synchronously, the second positioning hole on the positioning plate at the through hole through which the sector plate fits is coaxially aligned with each of the first positioning holes on the sector plate.

[0011] As a preferred embodiment: the fan-shaped plate and its swing axis are set with the same central axis, the top edge of the perforation is set as a vertically downward horizontal surface, and the bottom edge of the perforation is an arc surface that abuts against the arc edge of the fan-shaped plate that is inserted therein.

[0012] By rotating the swing shaft axially, the sector plate on it is driven to swing inward through the corresponding perforation until it is fully close to the frame. At the same time, one of the straight edges of the sector plate is horizontally and parallel to the top edge of the perforation. Simultaneously, the second positioning hole on the positioning plate at the perforation is exactly coaxially aligned with one of the first positioning holes on the sector plate.

[0013] As a preferred embodiment: when the sector plate is inserted into the corresponding perforation and swings inward until it is sufficiently close to the frame, one of the straight edges of the sector plate is horizontally and parallel to the top edge of the perforation. At the same time, the positioning bolt is coaxially inserted into the second positioning hole and the first positioning hole, which are exactly coaxially opposite each other at this time, and a positioning nut is tightened on the positioning bolt to achieve the tight fixation of the sector plate.

[0014] Preferably, the device also includes a cleaning mechanism, which includes several water outlet pipes arranged horizontally and evenly on each vertical side wall of the inner cavity of the box. Each water outlet pipe is located above the drive shaft and close to the top surface of the inner cavity of the box. The water outlet direction of each water outlet pipe is close to the side wall where it is located and vertically downward along the side wall.

[0015] As a preferred embodiment: a feed pipe extends vertically upward from the top of the box and is connected to the inner cavity of the box; the horizontal bottom edge of each side plate of the box extends inward and downward to form a slope, and the slopes extending from the bottom edges of all four side plates of the box together form a vertically upward feeding channel that is connected to the inner cavity of the box as a whole, and the bottom of the feeding channel is the feeding port.

[0016] Preferably, at least one drive shaft extends outward from the housing along its own axis and then bends at 90° to extend vertically upward to form a control rod. The control rod drives the drive shaft to rotate axially on the housing, thereby synchronously driving the filter screen to flip inside the housing cavity.

[0017] As a preferred embodiment, vibration motors are fixedly installed at the bottom of the left and right side frames of the frame by fixing bolts. Each vibration motor is sealed and covered by a sealing shell at the bottom of its respective side frame, and the sealing shell is also fixedly installed at the bottom of the side frame by fixing bolts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the high-efficiency filtration and purification device for paint production according to this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the high-efficiency filtration and purification device for paint production according to this utility model (to better show the internal structure of the box, the top cover, left side plate, front side plate, baffle mechanism installed on the front side plate, and material discharge channel of the box are omitted).

[0020] Figure 3 This is a schematic diagram of the installation structure between the rear side plate and the baffle mechanism on it in this utility model (wherein, the surfaces filled with cutting lines are all cutting surfaces of the component).

[0021] Figure 4 This is a schematic diagram (left view, sectional view) showing the positional relationship between the filter screen and the baffle mechanism inside the housing during normal filtration operation in this utility model.

[0022] Figure 5 For the attached Figure 4 Based on this, a schematic diagram of the structure when the filter screen is rotated and flipped axially (clockwise) around the drive shaft as the central axis;

[0023] Figure 6 For the attached Figure 4 , 5 Based on this, a schematic diagram of the positional structure during vibration self-cleaning after the filter screen has been flipped over;

[0024] Figure 7 This is a schematic diagram (left view, cross-sectional view) of the structure in which the vibration motor is fastened to the frame in this utility model.

[0025] Among them, 1—box body, 2—wire mesh, 3—frame, 4—drive shaft, 41—control rod, 5—vibration motor, 6—fixed seat, 7—swing shaft, 9—fan-shaped plate, 91—first positioning hole, 10—positioning bolt, 11—through hole, 12—positioning plate, 13—water supply pipe, 14—water outlet pipe, 15—feeding pipe, 16—feeding channel, 17—fixing bolt, 18—sealing shell, 19—positioning nut, 20—feeding pipe. Detailed Implementation

[0026] It should be noted that the terms "upper," "lower," "left," "right," "front," "back," "horizontal," "vertical," "top," "bottom," and "positive setting" used in the description of this application refer to the attached... Figure 1 , 2 In the directions mentioned in 3, "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0027] As attached Figure 1 As shown, the high-efficiency filtration and purification device for paint production of this utility model includes a rectangular box 1 positioned vertically along its length. The box 1 is suspended and fixed above the ground by a support frame (not shown in the attached drawing). A feed pipe 15 extends vertically upward from the center of the top of the box 1, coaxially connected to the inner cavity of the box 1. The horizontal bottom edges of each side plate of the box 1 extend inward and downward at an angle of 60° relative to the horizontal plane, forming a slope. The slopes extending from the bottom edges of all four side plates of the box 1 together form a vertically upward feeding channel 16 that is integrally connected to the inner cavity of the box 1. The bottom of the feeding channel 16 is a feeding port coaxially arranged with the box 1 and the feeding channel 16. A valve (not shown in the attached drawing) is installed on a feeding pipe 20, which is coaxially and sealed between the vertically upward feeding pipe and the feeding port, to control the feeding. The box 1 is also equipped with a filtration mechanism, a baffle mechanism, and a cleaning mechanism.

[0028] As attached Figure 2The filtration mechanism includes a filter screen disposed within the inner cavity of the housing 1. The filter screen comprises a square wire mesh 2 with a horizontally aligned surface. The wire mesh 2 is horizontally and outwardly fixed to a matching frame 3, which is also horizontally aligned. The left, right, front, and rear frames of the frame 3 are horizontally and outwardly parallel to the corresponding vertical inner cavity walls of the housing 1. (The gaps between the front and rear frames and the inner cavity walls of the housing 1 are only for the frame 3 to rotate within the housing 1; the gaps between the left and right frames and the inner cavity walls of the housing 1 are even smaller, only to allow water output from the outlet pipe 14 to flow downwards along the inner cavity walls of the housing 1 through these gaps. The attached diagram is for...) (Note that these spacings may be amplified and the actual spacing may not be so large.) On the frame 3, at the center front-to-back direction, there are drive shafts 4 extending horizontally to the left and right away from the frame 3. Each drive shaft 4 is axially rotatable and can be inserted into the housing 1. The drive shaft 4 on the left extends horizontally to the left of the housing 1 and then bends at 90° before continuing to extend vertically upward to form a control rod 41. The control rod 41 drives the drive shaft 4 to rotate axially on the housing 1, thereby synchronously driving the filter screen to rotate and flip axially around the drive shaft 4 as the central axis in the inner cavity of the housing 1.

[0029] As attached Figure 7 At the bottom of the left and right sides of frame 3 (both are upright rectangular beams), a vibration motor 5 is fixedly installed at the center of the front and back sides by fixing bolts 17. Each vibration motor 5 is sealed and covered by a sealing shell 18 that is also fixedly installed at the bottom of the frame by fixing bolts 17 (this can protect the vibration motor 5 and prevent paint or water from seeping into the vibration motor 5 during the filtration and cleaning stages, thus affecting its operation and service life).

[0030] As attached Figure 1 , 3 The baffle mechanism includes two horizontal swing shafts 7 mounted on the front and rear vertical outer walls of the housing 1 respectively via fixed seats 6. The two swing shafts 7 are horizontally symmetrical about each other in the front and rear directions. The swing shafts 7 can only rotate axially by cooperating with the fixed seats 6 on their respective sides. Each swing shaft 7 extends outward from the center of its own axis to form a sector plate 9 (the sector angle is 90°) with a horizontal center axis. The sector plate 9 and the swing shaft 7 are set with the same center axis. Each sector plate 9 has two first positioning holes 91 at intervals along the length of the arc edge near its arc edge. The first positioning holes 91 are vertically connected to the left and right surfaces of the sector plate 9 along their own axis.

[0031] The front and rear vertical side panels of the housing 1 are respectively provided with through holes 11 for the fan-shaped plates 9 to pass through. Each through hole 11 is a vertical strip in the length direction and connects the inner cavity of the housing 1 to the outside. The top edge of the through hole 11 is a horizontal surface facing downwards, and the bottom edge of the through hole 11 is an arc surface that mates with the arc edge of the fan-shaped plate 9 that passes through it (that is, the arc of the bottom edge of the through hole 11 and the fan-shaped plate 9 and its corresponding swing shaft 7 that pass through the through hole 11 are all set on the same central axis). Figure 3 ;

[0032] On the front vertical outer wall of the box body 1 and the rear vertical outer wall, positioning plates 12 extend outward from near the through hole 11 and are parallel to the fan-shaped plate surface. The positioning plates 12 are provided with a second positioning hole (not shown in the attached figure). The second positioning hole is perpendicularly connected to the left and right plates of the positioning plate 12 along its own axis.

[0033] By rotating the swing shaft 7 axially in conjunction with the fixed base 6, the sector plate 9 on it can be driven to swing inward through the corresponding through hole 11 until it is sufficiently close to the corresponding frame of the frame 3, thereby preventing the filter screen from freely rotating axially in the housing 1 around the drive shaft 4. At this time, the straight edge of the sector plate 9 that is relatively close to the frame 3 is horizontally and parallel to the top edge of the through hole 11, and the second positioning hole on the positioning plate 12 at the through hole 11 is exactly coaxially aligned with one of the first positioning holes 91 on the sector plate 9. The positioning bolt 10 is coaxially inserted into the second positioning hole and the first positioning hole 91, and the positioning nut 19 is tightened on the positioning bolt 10 to achieve the tight fixing of the sector plate 9. Figure 3 , 4 6;

[0034] Similarly, by rotating the swing shaft 7 axially in conjunction with its fixed base 6, the sector plate 9 on it can be driven to swing outward through the corresponding through hole 11 to reach the outside of the housing 1. This allows the filter screen to rotate freely axially within the housing 1 around the drive shaft 4. During this process, when the second positioning hole on the positioning plate 12 at the through hole 11 is exactly coaxially aligned with the other first positioning hole 91 on the sector plate 9, the positioning bolt 10 is simultaneously and coaxially inserted into both the second positioning hole and the first positioning hole 91 to temporarily support and position the sector plate 9. This prevents the filter screen from being blocked by the sector plate 9 when rotating axially within the housing 1 around the drive shaft 4. (See attached diagram) Figure 5 .

[0035] The cleaning mechanism includes several water outlet pipes 14 arranged horizontally and evenly at intervals on the vertical side walls of the inner cavity of the housing 1. Each water outlet pipe 14 is located above the drive shaft 4 and faces upward towards the top surface of the inner cavity of the housing 1. The water outlet direction of each water outlet pipe 14 is close to the side wall it is located on and vertically downward along the surface of the side wall. The end of each water outlet pipe 14 away from the inner cavity of the housing 1 along its own transmission direction is connected to the water supply pipe 13 located outside the housing 1 (attached). Figures 2 to 7 (Not shown in the image) are connected to obtain water supply.

[0036] When the above-mentioned device filters and purifies coating products, the fan-shaped plates 9 on the front and rear sides of the inner cavity of the box 1 are as follows: Figure 2 , 4 The position and angle of the filter screen are set (and secured by the engagement of the positioning nut 19 and the positioning bolt 10 to achieve fixed support for the sector plate 9 at this angle). At this time, the filter screen can maintain a basically horizontal angle under the support and restriction of the two sector plates 9. At this time, the paint is continuously injected downward into the inner cavity of the box 1 through the feed pipe 15. The paint flows downward through the filter screen in the inner cavity of the box 1 and is filtered and purified. The filtered and purified paint then passes through the discharge channel 16, and by controlling the opening and closing of the valve on the discharge pipe 20, the paint is orderly filled into each packaging barrel through the discharge pipe 20 in sequence.

[0037] At the same time, since the straight edge of the sector plate 9 that is relatively close to the frame 3 is horizontally and parallel to the top edge of the corresponding perforation 11 (while the bottom edge of the perforation 11 and the arc edge of the sector plate 9 that is fitted therein always remain in face-to-face contact), the perforation 11 is blocked, thus preventing the paint from flowing out of the box 1 from the side during operation, which can reduce losses.

[0038] After a period of operation, some of the filtered particles will remain on the mesh surface of the filter screen, clogging the mesh and affecting subsequent filtration efficiency. To address this, the fan-shaped plate 9 is first lowered to the attached... Figure 5 The position is then adjusted, and the drive shaft 4 is rotated axially via the control lever 41 until the filter screen flips 180°, so that the side of the filter screen with particulate impurities is now facing downwards (as shown in the attached image). Figure 6 This allows some particulate impurities on the screen to fall off the filter screen naturally under gravity. Then, the fan-shaped plate 9 is raised again as shown in the attached diagram. Figure 6After positioning, the vibration motor 5 is remotely activated to vibrate the filter screen, effectively shaking off impurities embedded in the filter screen's mesh that are difficult to fall off naturally, thus further cleaning the filter screen (due to the presence of the two fan-shaped plates 9, when the filter screen vibrates under the action of the vibration motor 5, it has a collision effect on the filter screen, which is more conducive to shaking off impurities embedded in the filter screen's mesh); furthermore, during the process of the filter screen vibrating and shaking off impurities, cleaning water can also be vertically impacted downwards through the feed pipe 15 to further improve the cleaning effect. It is evident that the entire cleaning process of the filter screen is convenient to operate, and there is no need to remove the filter screen from the housing 1 throughout the process, which helps to improve production efficiency.

[0039] Considering that some impurity particles shaken off or washed away in the previous section will adhere to the inner wall of the chamber 1 below the filter screen and the inner wall (slope) of the discharge channel 16, and that most of these inner wall areas are relatively far from the lower opening of the feed pipe 15, it is difficult to flush all the impurity particles attached to the inner wall surface downwards through the feed pipe 15 simply by injecting cleaning water into the chamber 1. Therefore, this solution adds a water outlet pipe 14 with the water outlet direction close to the side wall of the inner cavity of the chamber 1 and vertically downwards along the surface of the side wall. The cleaning water sprayed from the numerous water outlet pipes 14 simultaneously basically covers the side walls of the inner cavity of the chamber 1 and flows downwards along these walls (through the gap between the frame 3 and the inner wall of the chamber 1) to the corresponding slope, and continues to cover these slopes and flow downwards along the slope, thus finally carrying the impurity particles attached to this part of the inner wall away from the device, so that the cleaned device can be safely put into the next round of paint filtration operation.

Claims

1. A high-efficiency filtration and purification device for paint production, characterized in that: The device includes a housing (1), and the housing (1) is equipped with a filter mechanism and a baffle mechanism. The filtering mechanism includes a filter screen disposed in the inner cavity of the housing (1). The filter screen includes a wire mesh (2) with a horizontal mesh surface. The wire mesh (2) is fixed to a matching frame (3) which is also horizontally disposed in a circumferential direction. Drive shafts (4) extend horizontally to the left and right away from the frame (3) respectively. Each drive shaft (4) is axially rotatably mounted on the housing (1) in a horizontal outward direction. A vibration motor (5) is fixedly installed at the bottom of the filter screen. The baffle mechanism includes a horizontal swing shaft (7) mounted on the front vertical outer wall and the rear vertical outer wall of the housing (1) respectively via a fixed seat (6). The swing shaft (7) can rotate axially in conjunction with the fixed seat (6) on which it is located. A fan-shaped plate (9) with a horizontal center axis extends outward from the shaft of the swing shaft (7). Through the axial rotation of the swing shaft (7), not only can the fan-shaped plate (9) on it be driven to swing inward through the housing (1) to move upward and close to the corresponding frame of the frame (3), thereby blocking the filter screen from rotating freely axially in the housing (1) with the drive shaft (4) as the center axis, but also can drive the fan-shaped plate (9) on it to swing outward to reach the outside of the housing (1), thereby allowing the filter screen to rotate freely axially in the housing (1) with the drive shaft (4) as the center axis.

2. The high-efficiency filtration and purification device for paint production as described in claim 1, characterized in that: Two first positioning holes (91) are provided at intervals along the length of the arc edge near the fan-shaped plate (9) to connect the left and right surfaces of the fan-shaped plate (9). The front and rear side panels of the box body (1) are respectively provided with through holes (11) for the fan-shaped plate (9) to pass through. The front vertical outer wall and the rear vertical outer wall of the box body (1) are respectively provided with positioning plates (12) that extend outward from near the through holes (11) and are parallel to the surface of the fan-shaped plate. The positioning plates (12) are provided with second positioning holes that connect the left and right sides of the plate. During the process of the swing shaft (7) rotating axially to drive the fan-shaped plate (9) thereon to swing synchronously, the second positioning hole on the positioning plate (12) at the through hole (11) through which the fan-shaped plate (9) passes is coaxially aligned with each of the first positioning holes (91) on the fan-shaped plate (9).

3. The high-efficiency filtration and purification device for paint production as described in claim 2, characterized in that: The sector plate (9) and the swing axis (7) are set with the same central axis. The top edge of the perforation (11) is a vertically downward horizontal surface. The bottom edge of the perforation (11) is an arc surface that cooperates with and abuts against the arc edge of the sector plate (9) that is inserted therein. By rotating the swing shaft (7) axially, the fan-shaped plate (9) on it is driven to swing inward through the corresponding through hole (11) until it is fully close to the frame (3) upward. At the same time, one of the straight edges of the fan-shaped plate (9) is horizontally and parallel to the top edge of the through hole (11). Simultaneously, the second positioning hole on the positioning plate (12) at the through hole (11) is exactly coaxially aligned with one of the first positioning holes (91) on the fan-shaped plate (9).

4. The high-efficiency filtration and purification device for paint production as described in claim 3, characterized in that: When the sector plate (9) is inserted into the corresponding through hole (11) and swings inward to fully approach the frame (3), one of the straight edges of the sector plate (9) is horizontally and parallel to the top edge of the through hole (11). At the same time, the positioning bolt (10) is coaxially inserted into the second positioning hole and the first positioning hole (91) which are coaxially opposite to each other at this time, and the positioning nut (19) is tightened on the positioning bolt (10) to achieve the tight fixing of the sector plate (9).

5. The high-efficiency filtration and purification device for paint production as described in claim 1, characterized in that: The device also includes a cleaning mechanism, which includes several water outlet pipes (14) arranged horizontally and evenly on each vertical side wall of the inner cavity of the box (1). Each water outlet pipe (14) is located above the drive shaft (4) and is close to the top surface of the inner cavity of the box (1). The water outlet direction of each water outlet pipe (14) is close to the side wall where it is located and is vertically downward along the side wall.

6. The high-efficiency filtration and purification device for paint production as described in claim 1, characterized in that: The top of the box (1) extends vertically upwards with a feed pipe (15) that communicates with the inner cavity of the box (1); the horizontal bottom edge of each side plate of the box (1) extends inwards and downwards to form a slope, and the slopes extending from the bottom edges of all four side plates of the box (1) together form a vertically upward feeding channel (16) that is in communication with the inner cavity of the box (1), and the bottom of the feeding channel (16) is the feeding port.

7. The high-efficiency filtration and purification device for paint production as described in claim 1, characterized in that: At least one of the drive shafts (4) extends outward along its own axis from the housing (1) and then bends at 90° to extend vertically upward to form a control rod (41). The control rod (41) drives the drive shaft (4) to rotate axially in conjunction with the housing (1), thereby synchronously driving the filter screen to flip inside the housing (1).

8. The high-efficiency filtration and purification device for paint production as described in claim 1, characterized in that: The vibrating motors (5) are fixedly installed on the bottom of the left and right sides of the frame (3) by fixing bolts (17). Each of the vibrating motors (5) is sealed and covered by the sealing shell (18) at the bottom of the side where it is located. The sealing shell (18) is also fixedly installed on the bottom of the side by fixing bolts (17).

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