Mixing mechanism and toning device

Abstract

The application relates to the field of automobile repair paint, and provides a stirring mechanism and a color mixing device. According to the stirring mechanism provided by the application, the stirring column itself has a plurality of side surfaces which are sequentially adjacent in the circumferential direction, so that the side surfaces can form edges due to intersection, and the edges can effectively promote the stirring of the material when the stirring column rotates. According to the stirring mechanism provided by the embodiment of the application, the stirring column has a cavity, the weight of the stirring column is reduced, and the overall weight of the stirring column is also reduced.

Description

Technical Field

[0001] This application relates to the field of automotive refinish paint, and in particular to a mixing mechanism and a color mixing device. Background Technology

[0002] In coatings, paint mixing, or related industrial applications, paint mixers are commonly used equipment in industries such as automotive repair (industrial paint production lines or household paint mixing). The paint bucket lid, also known as the "paint mixing lid," is usually the lid of the paint mixing container (such as a paint bucket or mixing tank), and its function is closely related to the characteristics of the paint mixing process.

[0003] Paint mixing paste caps reduce solvent evaporation from the mixing container, preventing material waste (loss of active ingredients), environmental pollution (VOC emissions), and safety hazards (flammable and explosive gases). They also act as a dust and pollution preventer, as paint mixing requires high cleanliness. The cap prevents dust and impurities from falling into the paint, avoiding particles, defects, and color differences caused by contamination of pigments or additives after spraying. Furthermore, the sealed environment reduces solvent evaporation, ensuring a stable solvent-to-solid ratio in the paint and preventing a decline in paint film performance (such as adhesion and gloss) due to evaporation. However, existing paint mixing mixers often use a cylindrical mixing shaft to drive the blades. In actual mixing, the shaft hardly plays a mixing role, only transmitting power to the blades. Moreover, the shaft is often quite heavy. Utility Model Content

[0004] In view of this, this application provides a stirring mechanism and a color mixing device, with the aim of solving the above-mentioned technical problems to a certain extent.

[0005] In a first aspect, this application provides a stirring mechanism, the stirring mechanism comprising: a rotating body having a stirring column extending along a first direction, the stirring column rotating about an axis extending along the first direction, the axis passing through the stirring column, the stirring column having a plurality of sides sequentially adjacent in the circumferential direction, wherein the stirring column has a cavity.

[0006] Based on the above technical solutions, optionally, the stirring mechanism further includes multiple blades, each blade being connected to at least two of the sides.

[0007] Based on any of the above technical solutions, optionally, the stirring column further includes a plurality of through holes, with at least one through hole provided on each side, and the through holes on adjacent sides are staggered in the first direction.

[0008] Optionally, based on any of the above technical solutions, all of the plurality of through holes are connected to the cavity.

[0009] Optionally, based on any of the above technical solutions, each of the through holes extends along the first direction.

[0010] Optionally, based on any of the above technical solutions, the stirring mechanism further includes a driving component, the rotating body includes a bushing, the bushing is connected to the stirring column, the bushing is located on one side of the stirring column in the first direction, the bushing is drivenly connected to the driving component, and the driving component drives the bushing and the stirring column to rotate around the axis; wherein, the cavity communicates with the bushing, the side of the cavity away from the bushing is open, and the cavity and the bushing together provide a path for the color paste to pass through.

[0011] Optionally, based on any of the above technical solutions, the rotating body has an opening on the side away from the bushing, and the opening communicates with the cavity.

[0012] Optionally, based on any of the above technical solutions, the stirring mechanism further includes a driving assembly, the rotating body includes a bushing, the bushing is connected to the stirring column, the bushing is located on one side of the stirring column in the first direction, wherein the driving assembly includes a driving gear and a driving shaft extending along the first direction, the driving gear is disposed at one end of the driving shaft and is throttle-connected to the bushing, and the other end of the driving shaft can be driven to rotate the driving shaft.

[0013] Based on any of the above technical solutions, optionally, the bushing is detachably connected to the stirring column, or the bushing is integrally formed with the stirring column.

[0014] Secondly, this application provides a color mixing device, which includes the stirring mechanism described above.

[0015] According to the stirring mechanism provided in this application, since the stirring column itself has multiple adjacent sides in the circumferential direction, the adjacent sides can form edges due to their intersection, thereby effectively promoting the stirring of materials when the stirring column rotates. According to the stirring mechanism provided in the embodiments of this application, since the stirring column has a cavity, its own weight is reduced, which also helps to reduce the overall weight of the stirring column.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a three-dimensional view of a paint bucket assembled into a color mixing device according to an embodiment of this application.

[0019] Figure 2 for Figure 1 A schematic diagram taken from an upward-looking perspective.

[0020] Figure 3 for Figure 1 A schematic diagram of a 3D image from the right rear view.

[0021] Figure 4 for Figure 1 A schematic diagram from the left-hand perspective, based on the basic design.

[0022] Figure 5 for Figure 1 A schematic diagram of another three-dimensional diagram based on the above.

[0023] Figure 6 This is a schematic diagram of a three-dimensional color mixing device provided according to an embodiment of this application.

[0024] Figure 7 for Figure 6 A schematic diagram from the lower left perspective.

[0025] Figure 8 This is a cross-sectional view obtained by cutting the color mixing apparatus provided according to an embodiment of this application with a vertical plane passing through the stirring spindle.

[0026] Figure 9 This is a three-dimensional schematic diagram of the color mixing device provided according to an embodiment of this application, omitting the pump and valve.

[0027] Figure 10 for Figure 9 A schematic diagram from a low angle.

[0028] Figure 11 for Figure 9 A schematic diagram of the cross-sectional structure based on the given information.

[0029] Figure 12 for Figure 9 A schematic diagram from another upward angle based on the basic structure.

[0030] Figure 13 for Figure 9A schematic diagram of the cross-sectional structure from left to right. Detailed Implementation

[0031] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not 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 this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] According to the first aspect of the stirring mechanism in the embodiments of this application, the following will be combined with Figures 1 to 13 Describe in detail the structure and working principle of the mixing mechanism.

[0036] According to the embodiments of this application, the stirring mechanism includes a rotating body having a stirring column. In one embodiment, the stirring column extends along a first direction and rotates about an axis extending along the first direction, the axis passing through the stirring column. The stirring column has a plurality of sides that are sequentially adjacent in the circumferential direction, and the stirring column has a cavity.

[0037] Thus, according to the stirring mechanism provided in the embodiments of this application, since the stirring column itself has multiple adjacent sides in the circumferential direction, the adjacent sides can form edges due to their intersection, thereby effectively promoting the stirring of materials when the stirring column rotates. According to the stirring mechanism provided in the embodiments of this application, since the stirring column has a cavity, its own weight is reduced, which also helps to reduce the overall weight of the stirring column.

[0038] In an embodiment, a stirring mechanism is used in the color mixing device to stir materials such as color pastes.

[0039] In an embodiment, as an example, when the stirring mechanism is used in a color mixing device, specifically, the color mixing device may include a cover member, which may, for example, have a first side and a second side opposite to each other in a first direction. In an embodiment, the cover member can be used to cover a paint raw material container. When the cover member is placed on the paint raw material container, the color mixing device can be in an operating state, at which time the first side faces the interior of the paint raw material container, and the second side is located on the exterior of the paint raw material container. In an embodiment, most of the structure in the stirring mechanism provided according to the embodiments of this application can be located within the space jointly defined by the cover member and the paint raw material container, especially the stirring column is located within this space.

[0040] In the embodiment, when the color mixing device is in operation, the first direction mentioned above can be, for example, a vertical direction, and the second direction perpendicular to the first direction mentioned in the following description can be a horizontal direction.

[0041] According to the stirring mechanism provided in the embodiments of this application, the stirring mechanism may further include multiple blades, each blade being connected to at least two sides. In the embodiments, the stirring column may be prism-shaped due to the aforementioned multiple sides, with each blade connected to at least two sides, such that the blade spans at least one edge (e.g., connected to two sides, spanning one edge), thereby greatly improving the flexural strength of the blade.

[0042] According to the stirring mechanism provided in the embodiments of this application, the stirring column may further include multiple through holes, with at least one through hole provided on each side, and the through holes on adjacent sides may be staggered in a first direction. In the embodiments, the provision of through holes is beneficial for further weight reduction of the stirring column. In addition, the staggered arrangement of through holes on adjacent sides helps to ensure the structural strength of the stirring column.

[0043] According to the stirring mechanism provided in the embodiments of this application, the above-mentioned multiple through holes can all be connected to the cavity. Thus, according to the stirring mechanism provided in the embodiments of this application, these through holes can reduce the frictional resistance between the stirring column and the liquid by communicating with the cavity, which can make the stirring column have a larger volume. While ensuring the stirring effect, it is also not easy to stir air into the color paste, thus affecting the mixing accuracy of the color paste.

[0044] As an example, according to the stirring mechanism provided in the embodiments of this application, each through hole can extend along a first direction, that is, the through hole can take the shape of, for example, a strip.

[0045] According to the stirring mechanism provided in the embodiments of this application, the stirring mechanism may further include a driving component, and the rotating body may further include a bushing and a stirring column. The bushing may be connected to the stirring column and may be located on one side of the stirring column in a first direction (e.g., the side where the cover member is located, i.e., the upper side of the stirring column). The bushing may be connected to the driving component for transmission, and the driving component drives the bushing and the stirring column to rotate around the axis.

[0046] In this embodiment, the cavity of the stirring column can communicate with the bushing, and the side of the cavity away from the bushing can be open. The cavity and the bushing together provide a path for the pigment paste to pass through. Here, the path for the pigment paste provided by the cavity and the bushing should be understood as the space through which the pigment paste moves from the bottom to the top of the paint raw material tank. Within this space, an additional path can be provided to guide the movement of the pigment paste. This additional path can be, for example, a pipeline, which will be described in detail later.

[0047] According to the stirring mechanism provided in the embodiments of this application, the rotating body has an opening on the side away from the bushing, and the opening communicates with the cavity of the rotating body. In the embodiments, the opening may be located, for example, at the bottom of the rotating body, with a portion of the opening opening downwards and a portion opening in a second direction perpendicular to the first direction, that is, opening in a horizontal direction. This, in particular, facilitates the flow of pigment paste between the cavity and the outside of the cavity. When the pigment paste flows from the inside of the cavity to the outside, if the stirring mechanism operates synchronously, the pigment paste can be stirred more evenly and effectively.

[0048] In an embodiment, as an example, the stirring column can be, for example, a stirring square column 35. The upper end of the stirring square column 35 can be engaged with the elastic retaining teeth provided at the lower part of the bushing 31 via a stepped platform. However, the two can be detachably connected by other connection methods, or they can be directly manufactured as the same component, i.e., integrally formed.

[0049] In this embodiment, the stirring column 35 can be a vertical, hollow cuboid. Holes 351 can be provided on the wall surface of the stirring column 35. The shapes of the holes 351 on different surfaces can be the same, for example, different in length. By using holes 351 on surfaces with different lengths, the holes 351 on adjacent surfaces can be arranged in a staggered manner. This ensures the overall structural strength of the stirring column 35.

[0050] In the embodiment, as described above, a paddle 352 can also be provided on the outer surface of the stirring column 35. The root of the paddle 352 can be connected to two adjacent sides of the stirring column 35 simultaneously, that is, straddling a single edge, which can greatly improve the flexural strength of the paddle. The edge of the stirring column 35, relative to the cylindrical structure, has a certain stirring effect. The holes 351 on the stirring column 35 reduce the frictional resistance between the stirring column 35 and the liquid, so it can enable the stirring column 35 to have a larger volume. While ensuring the stirring effect, it is also less likely to stir air into the color paste, affecting the mixing accuracy of the color paste (because the more air bubbles, the less accurate the measurement methods such as volume measurement).

[0051] According to a second aspect of the embodiments of this application, a color mixing device is provided, which includes the stirring mechanism as described above. The structure and working principle of the color mixing device will be further described below with reference to the accompanying drawings.

[0052] The color mixing apparatus provided in this application includes a cover member, a dispensing path, a dispensing mechanism, and a stirring mechanism as described above. In an embodiment, the cover member includes a first side and a second side opposite to each other, the first side being oriented toward the paint raw material container to cover the paint raw material container.

[0053] In an embodiment, the cover member can be, for example, an overall circular cover, which is the state in which the cover member is placed on the paint raw material container when the color mixing device is in operation. Generally speaking, the paint raw material container can be placed vertically, so the first side and the second side of the cover member can be opposite each other in the vertical direction. More specifically, the first side can be the lower side of the cover member, and the second side can be the upper side of the cover member.

[0054] In this embodiment, the dispensing path includes a first path extending from the first side away from the cover member and a second path extending along the first side. The dispensing path also includes a third path, and the first, second, and third paths are sequentially connected. The third path is used to position the paint raw material container when the cover member is placed on it. The dispensing mechanism is connected to the cover member and is connected to the third path.

[0055] In this embodiment, the dispensing path includes three parts: a first path, a second path, and a third path, as described above. As mentioned in the exemplary description above, the first side can be the lower side of the cover member. Therefore, the first path extends from the lower side of the cover member away from the cover member. In fact, during the operation of the color mixing device, the first path extends into the interior of the paint raw material container. In this embodiment, the second path can extend horizontally along the cover member and connect to it. In this embodiment, the third path connects the second path to the external environment of the paint raw material container, effectively connecting the second path to the dispensing mechanism. This allows the paint paste in the paint raw material container to be dispensed from the dispensing mechanism sequentially along the first path, the second path, and the third path.

[0056] In one embodiment, the rotating component is capable of rotating around a first path to agitate the material in the paint raw material tank.

[0057] Thus, according to the color mixing device provided in this application embodiment, the color mixing device is connected to the injection mechanism via an injection path. When the color mixing device is in operation, it can be directly installed onto the paint raw material tank, ensuring that the color paste is conveyed from the injection path to the injection mechanism and then injected, without needing to transfer the color paste in the paint raw material tank to another special container. This simplifies the color mixing process and the equipment used. Furthermore, the color mixing device provided in this application embodiment also integrates a stirring mechanism, allowing the color mixing device to be connected to equipment such as a paint mixing machine or a fully automatic color mixing machine. Driven by such equipment, the stirring mechanism stirs the color paste in the paint raw material tank, preventing liquid separation or stratification of the color paste within the tank.

[0058] According to the color mixing device provided in the embodiments of this application, the rotating component is sleeved on the outside of the first path. The rotating component does not interfere with the first path while stirring the color paste. At the same time, the dispensing operation of the dispensing path does not hinder the stirring process of the color paste by the rotating component. The sleeved position relationship between the rotating component and the first path is also conducive to further reducing the volume of the color mixing device.

[0059] In this embodiment, the injection path can be formed, for example, by a physical conduit, i.e., the first path is a first conduit, the second path is a second conduit, and the third path is a third conduit. In this embodiment, the first and third conduits can both be vertical conduits, and the second conduit can be, for example, a horizontal conduit.

[0060] According to the color mixing apparatus provided in the embodiments of this application, the driving component of the stirring mechanism can pass through the second path. Thus, the driving component is arranged to pass through the second path, which further helps to reduce the size of the color mixing apparatus.

[0061] According to the color matching device provided in the embodiments of this application, the driving component may include a driving shaft and a driving gear that pass through the second path, the driving gear being located between the first path and the third path, and the driving gear being connected to the rotating body for transmission.

[0062] According to the color mixing apparatus provided in the embodiments of this application, specifically, in conjunction with Figure 6 and Figure 8 In this embodiment, the cap member is formed as a substantial slurry cap, and as mentioned above, the injection path can be a physical conduit, specifically, for example, a flow channel 41. The first conduit, the vertical conduit on the left, extends downward from the center of the lower surface of the slurry cap; the second conduit, the upper horizontal conduit, passes through the interior of the slurry cap body; and the third conduit, the vertical conduit on the right, extends downward from the outside of the clamp 29 on that side of the slurry cap (a description of the clamp 29 will be provided later).

[0063] In this embodiment, after the slurry cap is correctly secured to the opening of the paint raw material bucket (hereinafter referred to as the paint bucket), the vertical pipe on the right side of the flow channel pipe 41 is located on the outer side of the outer wall of the paint bucket. The rotating body of the stirring mechanism 3 includes a bushing 31 fitted onto the vertical pipe on the left side. A sealing ring can be provided between the inner wall of the bushing 31 and the outer wall of the vertical pipe on the left side. The bushing 31 can be stepped, and the upper part of the bushing 31 can be supported in a cavity formed inside the slurry cap through a shoulder formed by its stepped structure. As described above, the bushing 31 can rotate relative to the slurry cap (actually, it can rotate about an axis extending in the vertical direction). In addition, a sealing ring can also be provided between the slurry cap and the outer wall of the bushing 31.

[0064] In this embodiment, the aforementioned drive shaft can be installed inside the cavity of the slurry cover. This drive shaft can be a rotatable stirring blade main shaft 33. Specifically, the lower end of the stirring blade main shaft 33 can be located inside the cavity of the slurry cover, and a gear 33-1 is provided on the lower end of the stirring blade main shaft 33. The upper end of the stirring blade main shaft 33 extends out from the cavity inside the slurry cover and is located above the slurry cover.

[0065] In this embodiment, the upper end of the stirring blade main shaft 33 can extend above the impeller cover. A bevel gear 34 is provided at the upper end of the stirring blade main shaft 33. The meshing structure of the bevel gear 34 can drive more paint buckets (without increasing power, the force transmission area of ​​the bevel gear is larger, and from the perspective of gear strength, no power increase is required). In this embodiment, a gear surface is also provided on the outer circumference of the upper part of the bushing 31. This gear surface meshes with the gear 33-1, and finally drives the bushing 31 to rotate through the stirring blade main shaft 33.

[0066] In this embodiment, the inner surface of the stirring column 35 does not directly contact the outer wall of the vertical pipe on the left side of the flow channel 41.

[0067] According to the color mixing device provided in the embodiments of this application, the dispensing mechanism may include a volumetric metering pump and a liquid outlet. The volumetric metering pump can draw material from the paint raw material tank via the dispensing path and dispense it through the liquid outlet. In the embodiments, the cover member may have a slurry outlet, and the color mixing device may also include a cover plate and a wrench pulverizedly connected to the cover plate. The wrench swings to drive the cover plate to cover and expose the slurry outlet. In the embodiments, the wrench and the volumetric metering pump are located on the same side of the cover member, and when viewed along the movement direction of the cover plate, the wrench and the volumetric metering pump overlap.

[0068] Specifically, the dispensing mechanism 4 may include a pump bracket 42, which extends primarily vertically (i.e., mainly up and down). The upper part of the pump bracket 42 may be fixedly connected to the slurry cap, and a horizontal valve body 43 may be fixedly installed on the lower middle part of the pump bracket 42. The valve body 43 is preferably a reflux valve. In this embodiment, the volumetric metering pump is preferably a combination pump of large and small sizes, and the feed end of the valve body 43 may be interconnected with the vertical pipe on the right side of the flow channel 41. This is similar to the valve body and pump structures described in patents CN201410792479.7, CN201711400600.7, or CN201310045508.9. In this embodiment, the reflux valve may have a reflux channel. When the valve body 43 is closed (i.e., no slurry is being dispensed), the reflux channel connects the valve body 43 to the vertical pipe on the right side of the flow channel 41, allowing the slurry to flow back into the paint bucket.

[0069] In this embodiment, the vertical pipe on the right side of the flow channel 41 can be connected to the volumetric metering pump 44 via the valve body 43. The valve body 43 has on / off and flow switching functions. The volumetric metering pump 44 can be a volumetric pump driven by a stepper motor, servo motor, or direct motor, such as a piston pump or plunger pump. By being driven, the pigment in the paint bucket can be drawn into the volumetric metering pump 44 and discharged through the outlet of the valve body 43 (i.e., the outlet as shown above).

[0070] In this embodiment, the volumetric metering pump 44 can be used as a fixed-volume metering pump or as a general volumetric pump, with the metering function performed by other weighing modules. The lower end of the volumetric metering pump 44 can be vertically mounted on the upper part of the valve body 43, and the internal liquid circuits of the two can be connected to each other. In this embodiment, as described above, the upper middle end of the volumetric metering pump 44 is located on one side of the wrench 16. The distance between the two is optimized according to their respective dimensions so that the outer wall of the volumetric metering pump 44 here can be used as a handle for the color mixing device. That is, when the user holds this handle (the upper middle outer wall of the volumetric metering pump 44) with one hand, the user's index or middle finger can grip the wrench 16, thereby conveniently operating the cover plate 14-1 on the slurry outlet to slide back and forth in a controllable manner, enabling one-handed operation and accurate material pouring.

[0071] According to the color mixing apparatus provided in the embodiments of this application, the color mixing apparatus may further include at least three grippers extending in the same direction as the first path, and the at least three grippers may be connected to the cover member. In the embodiments, each gripper has an inclined surface facing the paint raw material container, and the side of the inclined surface closer to the cover member is closer to the paint raw material container than the side of the inclined surface farther from the cover member.

[0072] In this embodiment, when installing the slurry cap onto the paint bucket, the cap can be manually and visually adjusted to ensure it is concentric with the paint bucket, guaranteeing proper installation without deviation. As described above, the slurry cap may have at least three downward-facing grippers 29 around its perimeter. Each gripper 29 may have a clamping gripper piece 291, the lower end of which can connect to the lower end of the inner surface of the gripper 29. The clamping gripper piece 291 has the aforementioned inclined surface, and its upper end can be inclined upwards towards the central axis of the slurry cap.

[0073] As an example, four clamping jaws can be set up. These four jaws can hold the outside of the paint bucket, pressing the clamping jaw piece 291 against the outer wall of the paint bucket, and can adjust the concentricity of the paint cap with the paint bucket. When the paint cap is fitted onto the paint bucket, it can automatically adjust itself according to the outer diameter of the paint bucket to ensure that the paint cap is centered, without the need for manual adjustment of the paint cap's position. The four clamping jaws evenly distributed around the paint cap can be consistent in shape and size.

[0074] The color mixing apparatus provided according to the embodiments of this application may further include a pressing mechanism. For example... Figure 13 As shown, a through hole 21 can be opened on the slurry cover, a clamping rod 22 can be inserted through the through hole 21, and a sealing sleeve 23 can be fitted on the outside of the clamping rod 22. The sealing sleeve 23 can have a flange in the shape of a protrusion, which can press on the slurry cover 3.

[0075] In this embodiment, the clamping mechanism may further include a clamping spring 25. The lower end of the clamping rod 22 may be formed as a pressure foot 26, and the upper end of the clamping rod may be hinged to a cam lifting handle 241. The cam surface 242 of the cam lifting handle 241 may contact the upper surface of the cam seat. In this embodiment, the cam seat may be a movable sleeve 243 sleeved outside the clamping rod 22. The upper surface 244 of the movable sleeve 243 may contact the cam surface 242 of the cam lifting handle. The movable sleeve 243 may also be provided with a flange 2431 in the shape of a flange. The upper end of the clamping spring 25 may abut against the flange 2431 of the movable sleeve 243. The clamping spring 25 is located between the flange of the sealing sleeve 23 and the cam lifting handle 241.

[0076] Prior to this application, when tightening the slurry cap, it was necessary to simultaneously press and rotate the knob to ensure the pressure foot was secured to the paint bucket. To ensure the cap's seal, the knob's spring was often designed to be highly elastic. Rotating the knob required continuous pressure on the spring, which generated significant resistance on the fingers, causing discomfort and strain for the operator. Repeated installations greatly increased the operator's workload and reduced comfort. However, according to this application's embodiment, when the cam-lifting handle 241 is used, pressing the pressure spring 25 causes the long axis of the cam-lifting handle 241 to contact the upper surface of the cam seat. Then, by horizontally rotating the cam-lifting handle 241, the pressure foot 26 presses against the paint bucket opening. During this horizontal rotation, the hand only needs to hold the handle to prevent the cam from returning to its original position to maintain continuous pressure on the spring. This reduces finger strain, saves energy, and makes operation more convenient.

[0077] In this embodiment, a support 27 is provided above the through hole 21 on the slurry cap. A support through hole 271 is provided on the flat plate of the support 27. A movable sleeve 243 can be disposed within the support through hole 271, and the movable sleeve 243 and the support through hole 271 can slide together. Thus, the entire clamping mechanism 2 is supported by two through holes, making it more robust. A balance spring 28 can be fitted around the outer periphery of the clamping rod between the bottom of the slurry cap and the pressure foot, ensuring that the clamping mechanism 2 does not move when the pressure foot is in a relaxed state. As an example, there can be two, four, or more clamping mechanisms, which can be evenly distributed circumferentially on the slurry cap.

[0078] In this embodiment, the pressure foot surface can be fan-shaped, with a vertical surface along the connecting line between the two arcs of the fan-shaped surface. This vertical surface divides the fan-shaped surface into two stepped pressure foot surfaces of different heights: the first pressure foot surface and the second pressure foot surface. This design allows multiple pressing surfaces to be used with a single pressure foot to press paint cans with different mouth thicknesses, unlike existing technologies where a single pressure foot can only press paint cans with the same mouth thickness. The two-section pressure foot structure provided in this application embodiment is applicable to paint cans with different clamping heights, increasing versatility. The new pressure foot structure features two working surfaces of different heights, with the upper and lower working surfaces at different heights from the sealing ring contact surface. This allows it to be used with paint cans with different clamping heights. When the clamping height of the paint can is less than 7mm, the upper surface can be used to seal the paint can; when the clamping height is greater than 7mm but less than 12mm, the lower surface can be used. Designing the pressure foot of the slurry cap with different heights and sizes achieves compatibility.

[0079] like Figures 1 to 9 As shown, the color mixing device may further include a paint outlet mechanism 1. The paint outlet mechanism 1 may include a rectangular elastic frame 11 disposed on the body of the paint cover, a pressure rod 12 pressed onto two rods of the rectangular elastic frame 11, and fixing seats 13 located on both sides of the elastic frame 11 for fixing the pressure rod 12. In an embodiment, the pressure rod 12 may be a round shaft structure, and both fixing seats 13 may be vertical plate structures with corresponding pressure rod shaft through holes 14. The diameter of the through holes is larger than the maximum diameter of the pressure rod 12. The through holes are preferably elongated in the vertical direction, and the pressure rod 12 is fitted into the through holes through cylindrical protrusions at both ends.

[0080] In this embodiment, the fixed seat with the above structure prevents the pressure rod shaft from moving out of the hole in the fixed seat when it moves only in a plane perpendicular to the axis of the pressure rod. Since the rectangular elastic frame 11 is pressed down by the pressure rod 12, the pressure rod 12 cannot move back and forth, but can move up and down in the through hole. This ensures that when the rectangular elastic frame 11 moves back and forth, the pressure rod 12 provides a high adaptive resistance force, ensuring that the rectangular elastic frame 11 is on the preset movement trajectory.

[0081] like Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, the paint outlet mechanism 1 may also include a slurry outlet provided on the paddle cover body. A cover plate 14-1 that can slide horizontally may be provided on the slurry outlet. The cover plate 14-1 is connected to one end of the elastic frame 11. Under the horizontal movement of the elastic frame 11 at this end, the cover plate 14-1 slides horizontally on the upper surface of the slurry outlet.

[0082] In an embodiment, the paint outlet mechanism 1 may further include a wrench support seat 15 disposed on the paint cover body. A wrench 16 may be mounted on the wrench support seat 15. The lower end of the wrench 16 may swing back and forth around the wrench support seat 15. A shaft 17 is disposed in the middle of the wrench 16. The shaft 17 is connected to the other end of the elastic frame 11, and the tail end of the elastic frame 11 abuts against the wrench 16, applying a force toward the outlet of the wrench to the upper end of the wrench. Under the action of this force, the outlet of the paint is closed by the cover plate 14-1. The top of the wrench 16 is configured to be bent toward the outlet of the paint.

[0083] like Figure 1 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, in order to better adapt to automated color mixing equipment, the color mixing device provided according to the embodiments of this application can be detachably positioned and fixed on the automated color mixing equipment. Therefore, correspondingly, this device may also include a color master barrel support base plate 5, on which a structure is provided for interconnection and cooperation with the automated color mixing equipment is provided.

[0084] In this embodiment, the connecting structure consists of two upwardly extending ear plates 51. However, this is not a limitation; the connecting structure can be varied as long as it effectively secures the device to the automatic color mixing equipment. In this embodiment, the color masterbatch support base plate 5 and the pump support 42 are assembled into a single unit using screws. A space channel 52 for the color paint raw material tank to enter and exit is provided below the slurry cover body. In this embodiment, to ensure the structural support strength of the color masterbatch support base plate 5 and to minimize the size of the device, a circular hole is chosen on the color masterbatch support base plate 5 below the slurry cover body as the space channel 52. Of course, this space channel 52 can also be of other shapes, as long as it allows the color paint raw material tank to pass vertically, fitting around the stirring column 35 and the paddle 352, and connecting to the clamping mechanism 2.

[0085] In this embodiment, a breather valve can also be installed on the slurry cap body. With the slurry cap body sealed, the breather valve allows for smoother and more accurate operation of the volumetric metering pump. Under normal conditions, the breather valve is closed, preventing air from entering and preventing slurry deterioration, thus avoiding changes in slurry quality and inaccurate metering. The breather valve can be two one-way valves in opposite directions: one inward and the other outward. When the volumetric metering pump draws slurry from the paint raw material tank, air enters the tank through the one-way valve; when the pump returns the slurry to the tank, the air is discharged through the outward-facing one-way valve. This maintains pressure balance within the tank, facilitating slurry intake.

[0086] The above are merely preferred embodiments of this application and do not limit the scope of protection of this application. Any equivalent structural transformations made based on the innovative concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A stirring mechanism, characterized in that, The stirring mechanism includes: A rotating body having a stirring column extending along a first direction, the stirring column rotating about an axis extending along the first direction, the axis passing through the stirring column, the stirring column having a plurality of sides sequentially adjacent in the circumferential direction, wherein the stirring column has a cavity.

2. The stirring mechanism according to claim 1, characterized in that, The stirring mechanism also includes a plurality of blades, each blade being connected to at least two of the sides.

3. The stirring mechanism according to claim 1, characterized in that, The stirring column also includes multiple through holes, with at least one through hole provided on each side, and the through holes on adjacent sides are staggered in the first direction.

4. The stirring mechanism according to claim 3, characterized in that, All of the through holes are connected to the cavity.

5. The stirring mechanism according to claim 3, characterized in that, Each of the through holes extends along the first direction.

6. The stirring mechanism according to claim 1, characterized in that, The stirring mechanism further includes a drive assembly, and the rotating body further includes a bushing. The bushing is connected to the stirring column and is located on one side of the stirring column in the first direction. The bushing is connected to the drive assembly in a transmission manner, and the drive assembly drives the bushing and the stirring column to rotate around the axis. The cavity is connected to the bushing, and the side of the cavity away from the bushing is open. The cavity and the bushing together provide a path for the pigment paste to pass through.

7. The stirring mechanism according to claim 6, characterized in that, The rotating body has an opening on the side away from the bushing, and the opening communicates with the cavity.

8. The stirring mechanism according to claim 1, characterized in that, The stirring mechanism further includes a drive assembly, and the rotating body further includes a bushing connected to the stirring column. The bushing is located on one side of the stirring column in the first direction. The drive assembly includes a drive gear and a drive shaft extending along the first direction. The drive gear is disposed at one end of the drive shaft and is connected to the bushing for transmission. The other end of the drive shaft can be driven to rotate the drive shaft.

9. The stirring mechanism according to claim 8, characterized in that, The bushing is detachably connected to the stirring column, or the bushing and the stirring column are integrally formed.

10. A color mixing device, characterized in that, The color mixing device includes a stirring mechanism as described in any one of claims 1 to 9.

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