Mixing equipment capable of uniformly blending paint

Abstract

The mixing equipment comprises a tank body, a circular groove-shaped filtering frame is arranged on the upper portion of an inner cavity of the tank body, filtering holes are distributed in the periphery of the filtering frame, a rotating shaft is connected to the center of the filtering frame, a grinding device is arranged in the middle of the filtering frame, and a mixing device is arranged below the filtering frame; the grinding device comprises a cross rod located above the filter frame and a grinding disc located in the filter frame, the upper side of the grinding disc is fixedly connected with a connecting frame, the connecting frame is connected to the cross rod in a sleeving mode and can swing relative to the cross rod, and a driving mechanism used for controlling the grinding disc to deflect around the cross rod is arranged in the connecting frame. According to the mixing equipment capable of uniformly preparing the paint, grinding, screening and mixing are integrated, the paint mixing quality and efficiency are improved, the paint particle grinding and mixing uniformity is ensured, and the mixing equipment is suitable for preparing various paint.

Description

TECHNICAL FIELD

[0001] The present application relates to paint mixing technology, in particular to a mixing device capable of uniformly mixing paint. BACKGROUND

[0002] In the field of paint mixing technology, traditional mixing devices mostly use simple stirring method, which is difficult to achieve efficient grinding, filtering and uniform mixing at the same time. With the increasing requirements of industrial manufacturing on paint quality, the existing technology often has problems such as low grinding efficiency and uneven mixing when dealing with complex materials such as raw paint, which restricts the improvement of production efficiency and product quality. Therefore, a device integrating grinding, screening, vibration mixing and other functions is needed to solve the problem, so as to optimize the paint mixing process and improve the production efficiency and product quality. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a mixing device capable of uniformly mixing paint, which is beneficial to improve the quality and efficiency of paint mixing.

[0004] The present application adopts the following scheme: a mixing device capable of uniformly mixing paint, comprising a tank body, a circular slot-shaped filter frame is arranged on the upper part of the inner cavity of the tank body, filter holes are distributed around the filter frame, a rotating shaft is connected to the center position of the filter frame, a grinding device is arranged in the middle of the filter frame, and a mixing device is arranged below the filter frame; the grinding device comprises a cross bar above the filter frame and a grinding disc in the filter frame, a connecting frame is fixedly connected to the upper side of the grinding disc, the connecting frame is sleeved on the cross bar and can swing relative to the cross bar, and a driving mechanism for controlling the swing of the grinding disc around the cross bar is arranged in the connecting frame.

[0005] Further, the driving mechanism comprises a transmission disc arranged in the connecting frame and connected to the rotating shaft, a pair of elastic pin assemblies symmetrically distributed on both sides of the rotating shaft are connected to the grinding disc, the upper end of the elastic pin assembly abuts against the lower side of the transmission disc, and a pressing part is arranged on the lower side of the transmission disc to push the elastic pin assembly in turn through the transmission disc rotating wheel and make the grinding disc swing.

[0006] Further, the grinding disc comprises an inner disc body in the middle and an outer disc body around the inner disc body, an annular feeding gap is left between the inner disc body and the outer disc body, a tank cover is arranged on the top of the tank body, and a feeding port is arranged on the tank cover and located directly above the feeding gap; a plurality of connecting rods for connecting the inner disc body and the outer disc body are evenly distributed around the feeding gap, and a grinding block is further arranged on the bottom surface of the grinding disc.

[0007] Further, a motor is installed on the upper side of the tank cover to drive the rotating shaft to rotate.

[0008] Further, the horizontal rod is composed of two rod bodies, one end of the two rod bodies is connected with the shaft sleeve, the rotating shaft is penetrated through the shaft sleeve and is in rotating cooperation with the shaft sleeve, the two rod bodies are respectively penetrated from two ends of the filter frame, and the two rod bodies are provided with shaft shoulders which are clamped outside two ends of the filter frame.

[0009] Further, the bottom center of the filter frame is fixedly connected with a downward extending connecting shaft, the mixing device comprises a rotating sleeve which is sleeved on the connecting shaft and a plurality of receiving assemblies which are connected to the rotating sleeve, the receiving assembly comprises a receiving plate and an elastic member which can slide up and down relative to the rotating sleeve, one end of the receiving plate is rotatably connected with the elastic member through a rotating pin, and the inner wall of the tank body is provided with a control mechanism for controlling the up and down movement and the deflection of the receiving plate.

[0010] Further, the control mechanism comprises an annular rail which is fixedly connected to the inner wall of the tank body, the bottom side of the annular rail is provided with a recessed accommodation slot, one end of the accommodation slot is a vertical surface, and the other end of the accommodation slot is an inclined surface, the outer end of the receiving plate is provided with two second rollers which are located at the same horizontal position and are in contact with the bottom surface of the annular rail, the axis of rotation of one of the second rollers coincides with the axis of rotation of the rotating pin, and the other second roller is located in front of the one second roller in the rotating direction of the receiving plate.

[0011] Further, the outer periphery of the rotating sleeve is uniformly provided with a plurality of vertical strip-shaped holes which correspond to the positions of the receiving assemblies, the positions corresponding to the accommodation holes in the rotating sleeve are provided with movable grooves, the elastic member of each receiving assembly is located in the corresponding movable groove and can slide up and down relative to the movable groove, a second spring is arranged in the movable groove to push the elastic member upward, so that the receiving plate is lifted when the two second rollers roll to the accommodation position.

[0012] Further, the movable groove and the strip-shaped hole penetrate through the upper end surface of the rotating sleeve, the upper end of the rotating sleeve is connected with a cover, the cover is sleeved on the connecting shaft, the center of the rotating sleeve is provided with a connecting hole for the connecting shaft to penetrate through, and the side of the cover is provided with a tightening screw which penetrates radially inward to tightly press the connecting shaft.

[0013] Further, the lower part of the tank body is in an inverted conical shape, the bottom of the tank body is provided with a discharge port, and the lower part of the inner cavity of the tank body is provided with an inverted conical spiral blade which is fixedly connected with the connecting shaft, and the outer side surface of the spiral blade is close to the inner side wall of the lower part of the inner cavity of the tank body.

[0014] Compared with the prior art, the present application has the following beneficial effects: the present application can uniformly mix paint, integrates grinding, screening and mixing, is beneficial to improve the quality and efficiency of paint mixing, ensures the uniformity of paint particle grinding and mixing, and is suitable for the mixing requirements of various paints.

[0015] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be given below with reference to specific embodiments and relevant drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 2 A schematic diagram of the lateral cross-sectional structure of the embodiment of the present application is shown in the figure. Figure 3 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 2 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 4 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 2 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 5 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 2 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 6 A schematic diagram of the structure of each part inside the tank body of the embodiment of the present application is shown in the figure. Figure 7 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 8 A schematic diagram of the embodiment of the present application is shown in the figure. Figure 9 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. Figure 10 A schematic diagram of the three-dimensional structure of the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0017] It should be noted that the following detailed description is exemplary in nature and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0018] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0019] As Figures 1-10As shown, a kind of mixed equipment that can even modulate paint includes tank body 1, the upper portion of the cavity of the tank body 1 is equipped with circular slot filter frame 2, and filter frame 2 is distributed with filter hole in the periphery, and the central position of filter frame 2 is connected with rotating shaft 14, grinding device is arranged in filter frame 2, and mixing device is arranged below filter frame 2. Among them, filter frame 2 is used to receive raw lacquer to be modulated, grinding device is used to grind raw lacquer to form raw lacquer powder, and mixing device is used to mix each raw lacquer powder.The grinding device includes cross bar 12 located above filter frame 2 and grinding disc 31 located in filter frame 2, the upper side of grinding disc 31 is fixedly connected with connecting frame 21, the connecting frame 21 is sleeved on cross bar 12 and can swing relative thereto, and the connecting frame 21 is provided with driving mechanism for controlling grinding disc 31 to swing around cross bar. Rotating shaft 14 rotates to drive filter frame 2 to rotate above tank body 1, when filter frame 2 rotates, raw lacquer powder formed by grinding in filter frame 2 is thrown to the side surface in filter side frame under the action of centrifugal force, and paint with small particle size is thrown out from filter hole 201 of filter frame 2 to tank body 1 and falls down, to form the process of paint filtration.

[0020] In the embodiment, the upper inner wall of the tank body 1 is further fixed with a fixed ring (not shown in the drawing), and the two ends of the cross bar 12 are fixed to the fixed ring by penetrating bolts from top to bottom, to form the structure of the cross bar 12 fixed horizontally above the tank body 1.

[0021] In the embodiment, the driving mechanism includes transmission disc 32 located in the connecting frame and connected to rotating shaft 14, the grinding disc 31 is connected with a pair of elastic pin assemblies symmetrically distributed on both sides of the rotating shaft, the upper end of the elastic pin assembly abuts against the lower side of the transmission disc 32, and the lower side of the transmission disc 32 is provided with pressing portion 321 for pushing the elastic pin assembly in turn to make the grinding disc 31 swing by rotating the transmission disc 32.

[0022] In the embodiment, the elastic pin assembly comprises a transmission pin 33 penetrating the grinding disc 31, the transmission pin 33 penetrates the upper and lower surfaces of the grinding disc 31 and can slide relative to the grinding disc 31, the upper end of the transmission pin 33 is provided with a first roller 34, and the first roller 34 is elastically lifted relative to the grinding disc 31, the elastic lifting structure of the first roller 34 can be that the upper part of the transmission pin 33 is sleeved with a first spring 35, the two ends of the first spring 35 are respectively abutted against the first roller 34 and the grinding disc 31, and the elastic force of the first spring 35 pushes the first roller 34 to abut against the bottom surface of the transmission disc 32, thereby forming the structure that the first roller 34 is elastically lifted relative to the grinding disc 31, and the lower end of the transmission pin 33 is connected with a limiting nut clamped on the lower side of the grinding disc. When the transmission disc 32 is rotated by the rotating shaft 14, the pressing part 321 of the transmission disc 32 rotates to form a mode that periodically presses the first roller 34, the first roller 34 is compressed when descending to compress the first spring 35 and then presses the grinding disc 31 downward to drive the grinding disc 31 to be deflected downward on one side, drive the grinding block 314 to press the raw lacquer in the filter frame 2, and simultaneously rotate the grinding disc 31 to rotate the raw lacquer to form raw lacquer powder.

[0023] In the embodiment, the grinding disc 31 comprises an inner disc body 311 located in the middle and an outer disc body 312 located at the periphery of the inner disc body 311, an annular feeding gap 301 is left between the inner disc body 311 and the outer disc body 312, the top of the tank body 1 is provided with a tank cover, the tank cover is provided with a feeding port 101 located directly above the feeding gap 301, the raw lacquer is poured into the tank body 1 from the feeding port 101, and various raw lacquers can be poured into the tank body 1 from the feeding ports 101 during lacquer adjustment, so that the raw lacquers fall into the filter frame 2 from the feeding gap 301 of the grinding disc 31; a plurality of connecting rods 313 for connecting the inner disc body 311 and the outer disc body 312 are evenly distributed in the circumferential direction at the feeding gap 301, and the bottom surface of the grinding disc 31 is further provided with grinding blocks 314, and the fixing mode of the two ends of the connecting rod 313 can be direct welding or screw connection.

[0024] The grinding blocks 314 are centrally symmetrically arranged, the grinding blocks 314 can be diamond grinding blocks, and the grinding blocks 314 can be fixed to the bottom of the outer disc body 312 in a bolt connection mode. When the grinding disc 31 is deflected downward to press the filter frame 2, the grinding blocks 314 can press the raw lacquer in the filter frame 2, and the process of grinding the raw lacquer can be formed by the rotation of the filter frame 2. Preferably, a layer of sandpaper is pasted and fixed on the bottom surface of the grinding disc 31 to improve the grinding efficiency.

[0025] In the embodiment, the upper side of the tank cover is provided with a motor 15 for driving the rotation of the rotating shaft, and the main shaft of the motor 15 is coaxially connected with the rotating shaft.

[0026] In the embodiment, the crossbar 12 is composed of two sections of rod body, and the two sections of rod body are connected with the shaft sleeve 13 at the middle end, and the shaft sleeve 13 is provided with threaded holes at both sides, and the two sections of rod body are screwed into the threaded holes at the middle end to be fixed. The rotating shaft passes through the shaft sleeve 13 at the middle and is rotationally matched with the shaft sleeve 13, and specifically, a first bearing is embedded in the shaft sleeve 13, the rotating shaft 14 passes through the inner ring of the first bearing and is assembled with a clamping spring at the end surface of the first bearing to limit the rotating shaft 14 from lifting and only rotating, that is, to limit the rotating shaft 14 from being axially fixed relative to the shaft sleeve 13; the two sections of rod body pass through the filter frame 2 at both ends, and the two sections of rod body are provided with shaft shoulders 121 clamped outside both ends of the filter frame 2, so that the connecting frame 21 is limited between the shaft shoulders 121 of the two sections of rod body of the crossbar 12 and cannot be axially moved relative to the crossbar 12 but only swings, so as to form the structure that the grinding disc 31 is sleeved on the crossbar 12. Bearings are embedded at both ends of the connecting frame 21, and the two sections of rod body of the crossbar 12 pass through the inner ring of the bearing and are fixed in the shaft sleeve 13, and the connection through the bearing can reduce the friction force of the grinding disc 31 swinging relative to the filter frame 2.

[0027] In the embodiment, the filter frame 2 is fixedly connected with a connecting shaft 16 extending downward at the bottom center position, the mixing device includes a rotating sleeve 42 sleeved on the connecting shaft 16 and a plurality of groups of receiving assemblies 43 connected to the circumferential side of the rotating sleeve 42; the receiving assembly 43 includes a receiving plate 431 and an elastic member 432 capable of sliding up and down relative to the rotating sleeve 42, the receiving plate 431 is rotationally connected to the elastic member 432 at the middle end through a rotating pin 433, and the inner wall of the tank body is provided with a control mechanism for controlling the up and down movement and deflection of the receiving plate 431.

[0028] The specific connection structure of the rotating pin 433 and the elastic member 432 is shown in the accompanying drawings. Figure 5 As shown in the accompanying drawings, the elastic member 432 is recessed on one side to form a bearing position, a second bearing is embedded in the bearing position, one end of the rotating pin 433 is fixedly embedded in the inner ring of the second bearing, then the second bearing is embedded in the bearing position, and the second bearing is limited in the bearing position by assembling a clamping spring, so as to limit the rotating pin 433 to only rotate relative to the elastic member 432, so that the receiving plate 431 can only swing relative to the elastic member 432.

[0029] In the embodiment, the control mechanism comprises an annular rail 41 fixedly connected to the inner wall of the tank body 1, the bottom side of the annular rail 41 is provided with recessed accommodation grooves 411, the accommodation grooves 411 are two and symmetrically distributed at the center. One end of the accommodation groove 411 is a vertical surface 412, the other end of the accommodation groove 411 is an inclined surface 413; the outer end of the receiving plate 431 is provided with two second rollers 435 located at the same horizontal and attached to the bottom surface of the annular rail 41, one of the second rollers 435 rotates around the same axis as the rotating pin 433, and the other second roller 435 is located in front of the second roller 435 in the rotating direction of the receiving plate 431. The structure of the two second rollers 435 can limit the receiving plate 431 to a parallel state when the second roller 435 is located on the plane of the bottom of the annular rail 41 except the vertical surface 412 and the inclined surface 413, so as to receive the raw lacquer powder falling from the filtering frame 2. That is, when the rotating shaft 14 rotates to drive the rotating sleeve 42 to rotate, the first roller 34 is driven to roll along the bottom surface of the annular rail 41, after the two first rollers 34 pass through the vertical surface 412, the elastic member 432 and the receiving plate 431 are triggered to pop up, the raw lacquer powder on the receiving plate 431 is popped up, forming a mixing process, when the two first rollers 34 pass through the inclined surface 413, the receiving plate 431 is inclined to pour the raw lacquer powder, so that the mixed raw lacquer powder falls downward. Preferably, the receiving plate 431 can be a sheet metal part, and the receiving plate 431 is folded at the middle as a fold line, the two sides are bent upward by 2-5°, so that the upper surface of the receiving plate 431 forms a concave structure to accommodate the screened raw lacquer powder.

[0030] In the embodiment, the rotating sleeve 42 is uniformly provided with a plurality of vertical strip-shaped holes 421 corresponding to the positions of the receiving assembly 43, the rotating sleeve 42 is provided with a movable slot 422 corresponding to the position of each accommodation hole, the elastic member 432 of each receiving assembly 43 is located in the movable slot 422 and can slide up and down relative to the movable slot 422, the movable slot 422 is provided with a second spring 434 for pushing the elastic member 432 upward, so that when the two second rollers 435 roll to the accommodation groove 411, the receiving plate 431 rises.

[0031] In the embodiment, the movable slot 422 and the strip-shaped hole 421 penetrate through the upper end surface of the rotating sleeve 42, the rotating sleeve 42 is connected with a cover 44, the cover 44 is sleeved on the connecting shaft 16, the center of the rotating sleeve 42 is provided with a connecting hole 423 for the connecting shaft 16 to pass through, and the side of the cover 44 is provided with a tightening screw radially inward to tightly push the connecting shaft 16.

[0032] The mixing device is provided with two groups of upper and lower groups. The receiving plates 431 of the two mixing devices are arranged in a vertical projection direction, that is, the receiving plate 431 of the lower mixing device corresponds to the interval between the two adjacent receiving plates 431 of the upper mixing device. This structure makes the powder sieved by the filter frame 2 fall into the receiving plate 431 below the interval between the two receiving plates 431 above first, and then fall into the mixing device below after being mixed, and the upper mixing device can also fall into the lower mixing device after mixing the raw lacquer powder, which is beneficial to improve the mixing quality.

[0033] In the embodiment, the lower part of the tank body is in an inverted conical shape, and the tank body 1 is provided with a discharge port 102 at the bottom, and the modulated paint falls out of the discharge port 102. The tank body 1 is provided with an inverted conical spiral blade 5 at the lower part of the inner cavity, and the spiral blade 5 is fixedly connected with the connecting shaft 16, and the outer side of the spiral blade 5 is close to the inner side wall of the lower part of the inner cavity of the tank body 1. When the rotating sleeve 42 rotates, the spiral blade 5 rotates with it, and the raw lacquer powder falling from the receiving plate 431 of the mixing device falls into the spiral blade 5 and gradually descends with the rotation of the spiral blade 5. In this process, the water and the raw lacquer powder can be mixed multiple times, and the raw lacquer powder slowly settles along the spiral blade 5 to the discharge port 102, so that the modulated liquid paint slowly extrudes and flows out of the discharge port 102.

[0034] In the embodiment, the tank body 1 is fixed on the lower base 11, so that the discharge port 102 of the tank body 1 is suspended in the base 11, so as to place the container to receive the modulated paint at the discharge port 102. In addition, after pouring the raw lacquer from the feed port 101, water can also be poured into the tank body 1 from the feed port 101, so that the raw lacquer powder can be fully mixed with the water to form liquid paint, and the liquid paint is discharged from the discharge port 102.

[0035] In summary, the method for modulating paint by the mixing device of the present application is as follows: The driving shaft 14 is driven to rotate, driving the transmission disc 32 and the rotating sleeve 42 to rotate, and various paints to be modulated are poured into the tank body 1 from the feed ports 101 above the tank body 1, so that the raw lacquer falls into the filter frame 2; When the transmission disc 32 rotates to the pressing part 321 and presses the transmission pin 33, the transmission pin 33 on one side of the grinding disc 31 is driven downward and compresses the first spring 35, so as to press the one side of the grinding disc 31 provided with the grinding block 314 toward the filter frame 2, and the grinding block 314 on the other side of the grinding disc 31 is driven to swing upward to leave the bottom surface of the filter frame 2; When the filter frame 2 rotates, the raw lacquer on one side of the filter frame 2 pressed by the grinding block 314 is ground to form raw lacquer powder, and the grinding block 314 on the other side of the filter frame 2 moves upward away from the filter frame 2 to release the pressing of the raw lacquer powder, so that the raw lacquer powder with small particle size is driven to pass through the filter hole 201 under the action of centrifugal force and falls onto the receiving plate 431; When the rotating sleeve 42 rotates to drive each receiving plate 431 to rotate, the second roller 435 at the end of the receiving plate 431 moves to the vertical surface 412 of the displacement slot 411 of the annular rail 41, the elastic member 432 is elastically raised upward under the elastic force of the second spring 434 and drives the receiving plate 431 to be elastically raised upward, so that the raw lacquer powder in the receiving plate 431 is elastically raised to form vibration mixing; when the second roller 435 at the end of the receiving plate 431 moves to the inclined surface 413, the receiving plate 431 is tilted, so that the raw lacquer powder on the receiving plate 431 is poured downward to the discharge port 102 at the bottom of the tank body 1. At this time, the raw lacquer powder received at the discharge port 102 is the lacquer material with uniform mixing.

[0036] In the above method, the transmission disc 32 and the rotating sleeve 42 are linked and driven by the rotating shaft 14 to form multi-stage mechanical cooperation: after the raw lacquer is poured into the tank body 1, the transmission disc 32 periodically presses the grinding disc 31 to realize the alternating action of “one-side grinding-reverse lifting”, which not only realizes directional grinding of the lacquer in the filter frame 2 by the grinding block 314, but also screens the raw lacquer powder with qualified particle size by centrifugal force; then the rotating sleeve 42 drives the second roller 435 at the end of the receiving plate 431 to produce periodic motion of “elastic vibration-tilting pouring” under the constraint of the annular rail, and the motion of the second roller 435 is converted between the bottom plane of the annular rail 41 and the vertical surface 412 and the inclined surface 413 of the displacement slot 411, which realizes vibration homogenization mixing of the raw lacquer powder and completes precise discharge control. The whole process integrates multiple functions such as grinding, screening, elastic vibration mixing and spiral discharging to form a closed-loop modulation system, which is beneficial to improving the quality and efficiency of lacquer mixing.

[0037] Any technical solution disclosed in the above application, unless otherwise stated, if it discloses a numerical range, the disclosed numerical range is a preferred numerical range, any person skilled in the art should understand that the preferred numerical range is only one of the many implementable values with more obvious technical effects or representative values. Since there are too many values, it is impossible to enumerate them all, so the application discloses some values to illustrate the technical solutions of the application, and the above-mentioned values should not constitute a limitation on the protection scope of the application.

[0038] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0039] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the present invention to express positional relationships or shapes include states or shapes that are approximate, similar, or close thereto.

[0040] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A mixing device capable of uniformly preparing a paint, characterized in that: It includes a tank body, a circular groove-shaped filter frame is provided on the upper part of the inner cavity of the tank body, filter holes are distributed around the filter frame, a rotating shaft is connected to the center of the filter frame, a grinding device is provided in the middle of the filter frame, and a mixing device is provided below the filter frame; the grinding device includes a cross bar located above the filter frame and a grinding disk located in the filter frame, a connecting frame is fixedly connected to the upper side of the grinding disk, the connecting frame is sleeved on the cross bar and can swing relative to it, and a driving mechanism for controlling the deflection of the grinding disk around the cross bar is provided in the connecting frame.

2. The mixing device for uniformly preparing paint according to claim 1, characterized in that: The driving mechanism includes a transmission disk located in a connecting frame and connected to a rotating shaft. The grinding disk is connected to a pair of elastic pin assemblies symmetrically distributed on both sides of the rotating shaft. The upper ends of the elastic pin assemblies abut against the lower side of the transmission disk. The lower side of the transmission disk is provided with a pressing portion that pushes the elastic pin assemblies in turn through the rotation of the transmission disk to cause the grinding disk to swing.

3. The mixing device for uniformly preparing paint according to claim 1, characterized in that: The grinding disc includes an inner disc body located in the middle and an outer disc body located outside the inner disc body, an annular feed gap is left between the inner disc body and the outer disc body, a tank cover is provided on the top of the tank body, and a feed port is opened on the tank cover and located directly above the feed gap; a plurality of connecting rods uniformly distributed along the circumference for connecting the inner disc body and the outer disc body are provided at the feed gap, and a grinding block is also provided on the bottom surface of the grinding disc.

4. The mixing device for uniformly preparing paint according to claim 3, characterized in that: A motor for driving the rotating shaft to rotate is installed on the upper side of the tank cover.

5. The mixing device for uniformly preparing paint according to claim 1, characterized in that: The cross bar is composed of two sections of rod bodies, and the two sections of rod bodies are connected to the shaft sleeve towards one end in the middle. The rotating shaft passes through the middle of the shaft sleeve and rotates with it; the two sections of rod bodies are respectively inserted into the two ends of the filter frame, and the two sections of rod bodies are provided with shaft shoulders that are clamped on the outside of the two ends of the filter frame.

6. The mixing device for uniformly preparing paint according to claim 1, characterized in that: A downward-extending connecting shaft is fixedly connected to the bottom center of the filter frame, and the mixing device includes a rotating sleeve sleeved on the connecting shaft and multiple groups of receiving components connected to the circumferential side of the rotating sleeve; the receiving component includes a receiving plate and an elastic member that can slide up and down relative to the rotating sleeve, and the receiving plate is rotatably connected to the elastic member through a rotating pin toward the middle end, and the inner wall of the tank body is provided with a control mechanism for controlling the up and down movement and deflection of the receiving plate.

7. The mixing device for uniformly preparing paint according to claim 6, characterized in that: The control mechanism includes an annular rail fixedly connected to the inner wall of the tank body, a recessed give way groove is provided on the bottom side of the annular rail, one end of the give way groove is a vertical surface, and the other end of the give way groove is an inclined surface; two second rollers located at the same level and rolling on the bottom surface of the annular rail are provided at the outward end of the connecting plate, the axis of rotation of one of the second rollers coincides with the axis of rotation of the rotating pin, and the other second roller is located in front of one of the second rollers along the rotation direction of the connecting plate.

8. The mixing device for uniformly preparing paint according to claim 7, characterized in that: The outer periphery of the rotating sleeve is evenly distributed with a plurality of vertical strip holes corresponding to the positions of the receiving components. A movable groove is set at the position corresponding to each of the giving way holes in the rotating sleeve. The elastic parts of each group of receiving components are located in the corresponding movable groove and can slide up and down relative to it. A second spring is set in the movable groove to push the elastic parts upward so that the receiving plate rises when the two second rollers roll to give way.

9. The mixing device for uniformly preparing paint according to claim 8, characterized in that: The movable groove and the strip hole pass through the upper end surface of the rotating sleeve. The upper end of the rotating sleeve is connected to a cover, which is inserted into the connecting shaft. A connecting hole for the connecting shaft to pass through is set in the center of the rotating sleeve. A set screw is radially inwardly provided on the side of the cover to tighten the connecting shaft.

10. The mixing device capable of uniformly preparing paint according to claim 1, characterized in that: The lower part of the tank body is in an inverted cone shape, a discharge port is arranged at the bottom of the tank body, and an inverted cone-shaped spiral blade is arranged at the lower part of the tank body cavity. The spiral blade is fixedly connected to the connecting shaft, and the outer side of the spiral blade is close to the inner wall of the lower part of the tank body cavity.

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