Coating stirring device and stirring process

Abstract

The invention relates to the technical field of mixing equipment, in particular to a coating stirring device and a stirring technology.The coating stirring device comprises a handheld part and a connecting rod extending in the vertical direction, the upper end of the connecting rod is connected with the handheld part, a stirring wheel is coaxially arranged at the lower end of the connecting rod, and a plurality of stirring blades are arranged in the circumferential direction of the stirring wheel at intervals; a rotary driving mechanism is arranged in the handheld part, the rotary driving mechanism is in transmission connection with the stirring wheel and used for driving the stirring wheel to rotate so as to stir the coating, at least two of the multiple stirring blades are movable blades, the movable blades are movably arranged on the stirring wheel in the radial direction of the stirring wheel, and when the movable blades are close to the inner wall of the coating container, the coating is stirred. The movable blades contract towards the radial inner side of the stirring wheel, so that the stirring wheel is subjected to eccentric force away from the inner wall of the coating container. The technical problems that in the prior art, a stirrer is likely to collide with the inner wall of a stirring container, and then the stirrer is likely to be damaged and the coating quality is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, and in particular to a coating stirring device and a stirring process. Background Art

[0002] Before using the paint, the raw materials and water need to be mixed in a certain proportion. When mixing, a certain proportion of raw materials and water are first poured into a mixing container, and then the raw materials and water in the mixing container are stirred and mixed by a handheld paint stirrer. During the stirring step, in order to fully stir, the paint stirrer is generally shaken back and forth to assist in stirring the paint in the mixing container, which makes it very easy for the paint stirrer to collide with the inner wall of the mixing container, which is easy to damage the stirring blades of the paint stirrer on the one hand, and on the other hand, it is easy to cause the originally solidified debris on the inner wall of the mixing container to fall and mix into the paint, affecting the quality of the paint. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention proposes a paint stirring device and a stirring process to solve the technical problem in the prior art that when the paint is stirred and mixed, the agitator is easily collided with the inner wall of the stirring container, which is easy to damage the agitator and affect the quality of the paint.

[0004] A coating stirring device and stirring process of the present invention adopts the following technical scheme: A paint stirring device comprises a handheld portion and a connecting rod extending in an up-and-down direction, wherein the upper end of the connecting rod is connected to the handheld portion, and the lower end is coaxially provided with a stirring wheel, and the stirring wheel is provided with a plurality of stirring blades at circumferential intervals, and a rotary drive mechanism is provided inside the handheld portion, and the rotary drive mechanism is transmission-connected to the stirring wheel for driving the stirring wheel to rotate so as to stir the paint, at least two of the plurality of stirring blades are movable blades, and the movable blades are movably arranged on the stirring wheel along the radial direction of the stirring wheel, and when the movable blades approach the inner wall of a paint container, the movable blades retract toward the radial inner side of the stirring wheel so that the stirring wheel is subjected to an eccentric force away from the inner wall of the paint container.

[0005] Furthermore, the stirring wheel includes a rotating drum coaxially arranged with a connecting rod, the stirring blades are movably inserted on the side wall of the rotating drum, the connecting rod is a hollow cylinder structure, the upper end of the connecting rod is fixedly connected to the hand-held part, the rotating drum is rotatably arranged on the periphery of the lower end of the connecting rod, a transmission shaft is coaxially rotatably provided inside the connecting rod, the upper end of the transmission shaft is transmission-connected to the rotating drive mechanism, the lower end extends out of the connecting rod and is provided with a transmission gear, the transmission gear is transmission-connected to the rotating drum to drive the stirring wheel and the stirring blades to rotate.

[0006] Furthermore, a multi-speed transmission mechanism is provided between the rotary drive mechanism and the rotating drum, the multi-speed transmission mechanism includes the transmission shaft and the transmission gear, and also includes an idler gear tower arranged in the rotating drum, the transmission shaft includes an inner shaft, an intermediate shaft and an outer shaft coaxially sleeved together, the inner shaft, the intermediate shaft and the outer shaft can respectively move back and forth up and down in the connecting rod, the transmission gear includes an internal gear arranged at the lower end of the inner shaft, an intermediate gear arranged at the lower end of the intermediate shaft and an external gear arranged at the lower end of the outer shaft, the diameters of the external gear, the intermediate gear and the internal gear decrease in sequence, the idler gear tower includes an upper idler gear, an intermediate idler gear and a lower idler gear coaxially arranged from top to bottom, the diameters of the upper idler gear, the intermediate idler gear and the lower idler gear increase in sequence, the external gear is used for meshing transmission with the upper idler gear, the intermediate gear is used for meshing transmission with the intermediate idler gear, the internal gear is used for meshing transmission with the lower idler gear, and the rotating drum A stepped inner gear ring is provided on the inner wall, and the upper idler gear, the middle idler gear and the lower idler gear are respectively meshed with the stepped inner gear ring. In the initial state, the outer shaft, the middle shaft and the outer shaft are retracted toward the inside of the connecting rod so that the outer gear, the middle gear and the inner gear are located above the upper idler gear. When one of the outer shaft, the middle shaft and the inner shaft moves downward and meshes with the corresponding idler gear, the rotary drive mechanism drives the rotating drum and the stirring blades to rotate. When the outer shaft moves downward and meshes with the upper idler gear, the multi-speed transmission mechanism is in the first gear, and the rotating drum and the stirring blades rotate at a first speed. When the middle shaft moves downward and meshes with the middle idler gear, the multi-speed transmission mechanism is in the second gear, and the rotating drum and the stirring blades rotate at a second speed. When the inner shaft moves downward and meshes with the lower idler gear, the multi-speed transmission mechanism is in the third gear, and the rotating drum and the stirring blades rotate at a third speed. The first speed, the second speed and the third speed decrease in sequence.

[0007] The cam is an adjustable member configured to adjust the number of movable blades according to the rotation speed of the drum, the adjustable member comprising a plurality of sliding pins, the plurality of sliding pins comprising an upper sliding pin corresponding to the upper idler wheel, an intermediate sliding pin corresponding to the intermediate idler wheel, and a lower sliding pin corresponding to the lower idler wheel. The adjustable member also comprises a plurality of movable push rods, the plurality of movable push rods respectively comprising a first push rod, a second push rod and a third push rod respectively penetrated through the inner wall of the drum, the lower end of each movable push rod is respectively provided with a push surface, the push surface of the first push rod is used for push cooperation with the upper sliding pin, the push surface of the second push rod is used for push cooperation with the intermediate sliding pin, and the push surface of the third push rod is used for push cooperation with the lower sliding pin. In an initial state, each sliding pin extends radially along the drum, and each sliding pin The movable pin has an inner pushing portion at one end facing the inside of the rotating drum, and an outer pushing portion at the other end. The inner pushing portion of the upper sliding pin is used to push and cooperate with the outer gear, the inner pushing portion of the middle sliding pin is used to push and cooperate with the middle gear, and the inner pushing portion of the lower sliding pin is used to push and cooperate with the inner gear. In the initial state, the inner pushing portion of each sliding pin extends out of the corresponding idler wheel along the radial direction of the rotating drum in the direction away from the idler wheel tower and close to one end of the rotating drum, and the outer pushing portion of each sliding pin is retracted into the corresponding idler wheel in the initial state. When the outer gear pushes the upper sliding pin, the outer pushing portion of the upper sliding pin pushes the first push rod upward to move, when the middle gear pushes the middle sliding pin, the outer pushing portion of the middle sliding pin pushes the second push rod upward to move, and when the internal gear pushes the lower sliding pin, the outer pushing portion of the lower sliding pin pushes the third push rod upward to move.

[0008] Furthermore, the adjustment assembly also includes a gear ring and a rotating ring arranged above the rotating drum, the rotating ring, the gear ring and the rotating drum are coaxially arranged from top to bottom, the lower side of the gear ring is provided with a first step surface, a second step surface and a third step surface coaxial with the gear ring, the first step surface, the second step surface and the third step surface are staggered from top to bottom, the upper end of each movable push rod can respectively extend upward from the upper end of the rotating drum and push and cooperate with each step surface respectively to push the gear ring to move up a set distance, in an initial state, the upper end of each movable push rod retracts into the rotating drum, when the upper end of the first push rod extends out of the upper end of the rotating drum, it pushes and cooperates with the first step surface, the gear ring moves upward by a first distance, when the upper end of the second push rod extends out of the upper end of the rotating drum, it pushes and cooperates with the second step surface, the gear ring moves upward by a second distance, when the upper end of the third push rod extends out of the upper end of the rotating drum, it pushes and cooperates with the third step surface, the gear ring moves upward by a third distance, and the first distance, the second distance and the third distance decrease sequentially. An adjusting gear, a first gear, a second gear and a third gear are rotatably provided on the lower side of the rotating ring. Four movable blades are provided. The adjusting gear, the first gear, the second gear and the third gear are respectively connected to the four movable blades in a one-to-one transmission manner. An internal tooth structure is provided on the inner side of the gear ring. The adjusting gear is always meshed with the internal tooth structure on the inner side of the gear ring. When the gear ring moves up a first distance, the first gear meshes with the internal tooth structure of the gear ring, so that the two movable blades connected with the adjusting gear and the first gear can be synchronously retracted toward the inside of the rotating drum. When the gear ring moves up a second distance, the second gear meshes with the internal tooth structure of the gear ring, so that the two movable blades connected with the adjusting gear and the second gear can be synchronously retracted toward the inside of the rotating drum. When the gear ring moves up a third distance, the third gear meshes with the internal tooth structure of the gear ring, so that the two movable blades connected with the adjusting gear and the third gear can be synchronously retracted toward the inside of the rotating drum.

[0009] Furthermore, one end of the four movable blades close to the rotating drum is respectively provided with a rack rod movably inserted into the rotating ring, and the rack rod of each movable blade is respectively meshed with the adjusting gear, the first gear, the second gear and the third gear one by one.

[0010] Furthermore, the lower end of the connecting rod is fixedly connected to the installation shaft, and the upper idler wheel, the middle idler wheel and the lower idler wheel are rotatably installed on the installation shaft. Each sliding pin is provided with a through slot for the installation shaft to pass through. The through slot is a long slot extending along the moving direction of the sliding pin. An elastic reset member is provided in the through slot, and both ends of the elastic reset member are respectively pressed on the installation shaft and the inner wall of the through slot. The elastic reset member is used to drive each sliding pin to be in an initial state.

[0011] Furthermore, each sliding pin includes two separately arranged inner and outer sections, the section close to the radially outer side of the rotating drum is the outer section, and the section on the radially inner side of the rotating drum is the inner section. The outer section constitutes the outer pushing portion, and the inner pushing portion is arranged on the inner section. When each sliding pin moves radially outward along the rotating drum, the outer section can remain on the inner wall of the rotating drum and always cooperate with the corresponding movable push rod to push.

[0012] Furthermore, an upper ring groove and a lower ring groove are provided on the outer wall of the connecting rod, the rotating ring is rotatably installed in the upper ring groove, and the gear ring is rotatably installed in the lower ring groove through a support frame, and the support frame includes a support ring rotatably set in the lower ring groove, and a plurality of support rods fixedly connected to the outside of the support ring, the plurality of support rods respectively extend radially along the gear ring and are radially arranged, and the radial outer end of each support rod is fixedly connected to the gear ring.

[0013] A paint stirring process comprises the following steps: firstly, pouring raw materials and water into a paint container, then extending the paint stirring device into the paint container, starting a rotary drive mechanism to stir and mix the raw materials and water in the paint container to form a paint; during the stirring process, when one or more movable blades approach the inner wall of the paint container, the movable blades approaching the inner wall of the paint container are subjected to a greater reverse resistance from the paint than other stirring blades, so that the movable blades can be retracted toward the radial inner side of a stirring wheel, so that the entire stirring wheel is subjected to an eccentric force away from the inner wall of the paint container, thereby causing the stirring wheel to move toward a side away from the inner wall of the paint container.

[0014] The beneficial effects of the present invention are as follows: a paint stirring device and stirring process of the present invention, in order to minimize the collision between the stirring blades and the inner wall of the paint container, and the damage caused by the collision, the present invention sets at least two of the multiple stirring blades as movable blades, and the movable blades are movably arranged on the stirring wheel along the radial direction of the stirring wheel. In this way, when the movable blades approach the inner wall of the paint container, since the movable blades are close to the inner wall of the paint container, the reverse resistance of the paint on the movable blades will be greater than the reverse resistance on other stirring blades. In this way, the movable blades close to the paint container will be driven to shrink toward the radial inside of the stirring wheel, so that the entire stirring wheel will be deflected by the combined force of the paint, that is, the stirring wheel will be subjected to an eccentric force away from the inner wall of the paint container, which will prompt the stirring wheel to move away from the inner wall of the paint container, thereby minimizing the collision between the stirring blades on the periphery of the stirring wheel and the inner wall of the paint container, or reducing the damage caused by the collision between the stirring blades and the inner wall of the paint container. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a paint stirring device of the present invention; Figure 2 A partial view of an embodiment of a paint stirring device of the present invention; Figure 3 for Figure 2 Middle AA section view; Figure 4 for Figure 2 Middle BB section view; Figure 5 for Figure 2 Middle CC section view; Figure 6 for Figure 2 Middle DD section view; Figure 7 It is a three-dimensional schematic diagram of a gear ring in one embodiment of a paint stirring device of the present invention; Figure 8 Another three-dimensional schematic diagram of a gear ring in an embodiment of a paint stirring device of the present invention; Fig. 9 A schematic diagram of an upper idler wheel, a middle idler wheel and a lower idler wheel in an embodiment of a paint stirring device of the present invention; Fig.10 for Fig. 9 Bottom view of Fig.11 It is a three-dimensional schematic diagram of a rotating drum in one embodiment of a paint stirring device of the present invention; Fig.12 A bottom view of a rotating drum in one embodiment of a paint stirring device of the present invention; Fig.13 It is a three-dimensional schematic diagram of a rotating sleeve in one embodiment of a paint stirring device of the present invention; Fig.14 A partial cross-sectional view of a rotating sleeve in an embodiment of a paint stirring device of the present invention; Fig.15 This is a schematic diagram of the connection between a handheld portion and a transmission shaft in an embodiment of a paint stirring device of the present invention.

[0017] In the figure: 100, hand-held part; 101, connecting rod; 102, mounting shaft; 103, stirring wheel; 104, stirring blade; 105, adjusting blade; 106, first blade; 107, second blade; 108, third blade; 109, rotating drum; 200, multi-speed transmission mechanism; 201, transmission shaft; 2010, inner shaft; 2011, intermediate shaft; 2012, outer shaft; 202, idler tower; 2020, upper idler; 2021, intermediate idler; 2022, lower idler; 203, Transmission gear; 300, adjustment assembly; 301, lower sliding pin; 3010, middle sliding pin; 3011, upper sliding pin; 3012, outer section; 3013, inner section; 302, elastic reset member; 303, movable push rod; 304, gear ring; 3040, first step surface; 3041, second step surface; 3042, third step surface; 305, rotating ring; 306, adjustment gear; 307, first gear; 308, second gear; 309, third gear; 401, rack rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] An embodiment of a paint stirring device and a stirring process of the present invention is as follows: Figures 1 to 15As shown, the paint stirring device includes a handheld portion 100 and a connecting rod 101 extending in the up-down direction, wherein the upper end of the connecting rod 101 is connected to the handheld portion 100, and the lower end is coaxially provided with a stirring wheel 103, and the stirring wheel 103 is provided with a plurality of stirring blades 104 at intervals in the circumferential direction. A rotary drive mechanism is provided inside the handheld portion 100, and the rotary drive mechanism is transmission-connected with the stirring wheel 103, and is used to drive the stirring wheel 103 to rotate to stir the paint. In the present invention, in order to minimize the collision between the stirring blade 104 and the inner wall of the paint container, and the damage caused by the collision, the present invention sets at least two of the multiple stirring blades 104 as movable blades, and the movable blades are movably arranged on the stirring wheel 103 along the radial direction of the stirring wheel 103. In this way, when the movable blade approaches the inner wall of the paint container, since the movable blade is close to the inner wall of the paint container, the reverse resistance of the paint on the movable blade will be greater than the reverse resistance on other stirring blades 104. This will drive the movable blade close to the paint container to shrink toward the radial inside of the stirring wheel 103, so that the entire stirring wheel 103 will be deflected by the combined force of the paint, that is, the stirring wheel 103 will be subjected to an eccentric force away from the inner wall of the paint container, which will cause the stirring wheel 103 to move away from the inner wall of the paint container, thereby minimizing the collision between the stirring blades 104 on the periphery of the stirring wheel 103 and the inner wall of the paint container, or reducing the damage caused by the collision between the stirring blades 104 and the inner wall of the paint container.

[0020] In this embodiment, the stirring wheel 103 includes a rotating drum 109 coaxially arranged with the connecting rod 101, and the stirring blades 104 are movably inserted on the side wall of the rotating drum 109. Specifically, a plug hole is provided on the side wall of the rotating drum 109, and a connecting rod 101 is fixed on the side of each stirring blade 104 close to the rotating drum 109. The connecting rod 101 is inserted in the plug hole, and the stirring blades 104 are movably inserted on the rotating drum 109 through the connecting rod 101. In this embodiment, the connecting rod 101 is a hollow cylinder structure, and the upper end of the connecting rod 101 is fixedly connected to the handheld part 100. The rotating drum 109 is rotatably arranged on the periphery of the lower end of the connecting rod 101. When the rotary drive mechanism drives the rotating drum 109 to rotate, the connecting rod 101 is fixed. A transmission shaft 201 is coaxially rotated inside the connecting rod 101, the upper end of the transmission shaft 201 is transmission-connected to the rotary drive mechanism, and the lower end extends out of the connecting rod 101 and is provided with a transmission gear 203, and the transmission gear 203 is transmission-connected to the rotating drum 109 to drive the stirring wheel 103 and the stirring blade 104 to rotate.

[0021] In order to achieve the multi-gear rotation of the stirring blade 104 to stir the paint, in this embodiment, a multi-gear transmission mechanism 200 is provided between the rotation drive mechanism and the rotating drum 109, and the multi-gear transmission mechanism 200 includes the transmission shaft 201 and the transmission gear 203, and also includes an idler gear tower 202 arranged in the rotating drum 109. The transmission shaft 201 includes an inner shaft 2010, an intermediate shaft 2011 and an outer shaft 2012 coaxially sleeved together, and the inner shaft 2010, the intermediate shaft 2011 and the outer shaft 2012 can reciprocate up and down in the connecting rod 101 respectively. The transmission gear 203 includes an inner gear arranged at the lower end of the inner shaft 2010, an intermediate gear arranged at the lower end of the intermediate shaft 2011, and an outer gear arranged at the lower end of the outer shaft 2012, and the diameters of the outer gear, the intermediate gear and the inner gear are reduced in sequence. In this embodiment, two idler wheel towers 202 are provided, which are respectively located in the rotating drum and on opposite sides of the transmission shaft. Each idler wheel tower 202 includes an upper idler wheel 2020, an intermediate idler wheel 2021 and a lower idler wheel 2022 which are coaxially arranged from top to bottom. The diameters of the upper idler wheel 2020, the intermediate idler wheel 2021 and the lower idler wheel 2022 increase in sequence, so that the idler wheel tower 202 is stepped. The outer gear is used for meshing transmission with the upper idler wheel 2020, the intermediate gear is used for meshing transmission with the intermediate idler wheel 2021, and the inner gear is used for meshing transmission with the lower idler wheel 2022. A stepped inner gear ring is provided on the inner wall of the rotating drum 109, and the upper idler wheel 2020, the intermediate idler wheel 2021 and the lower idler wheel 2022 are respectively meshed with the stepped inner gear ring.

[0022] In the initial state, the outer shaft 2012, the intermediate shaft 2011 and the outer shaft 2012 are retracted into the inside of the connecting rod 101 so that the outer gear, the intermediate gear and the inner gear are located above the upper idler gear 2020. When one of the outer shaft 2012, the intermediate shaft 2011 and the inner shaft 2010 moves downward and meshes with the corresponding idler gear, the rotary drive mechanism drives the rotating drum 109 and the stirring blade 104 to rotate. When the outer shaft 2012 moves downward and meshes with the upper idler gear 2020, the multi-speed transmission mechanism 200 is in the first gear position, and the rotating drum 109 and the stirring blade 104 rotate at the first speed. When the intermediate shaft 2011 moves downward and meshes with the intermediate idler gear 2021, the multi-speed transmission mechanism 200 is in the second gear position, and the rotating drum 109 and the stirring blade 104 rotate at the second speed. When the inner shaft 2010 moves downward and meshes with the lower idler gear 2022, the multi-speed transmission mechanism 200 is in the third gear, and the drum 109 and the stirring blade 104 rotate at the third speed. The first gear is a high speed gear, the second gear is a medium speed gear, and the third gear is a low speed gear, that is, the first speed, the second speed and the third speed decrease in sequence.

[0023] In this embodiment, twelve stirring blades 104 are evenly spaced around the outer periphery of the drum 109, and four movable blades are provided, wherein the four movable blades are arranged adjacent to each other in sequence, and the four movable blades are respectively an adjustment blade 105, a first blade 106, a second blade 107, and a third blade 108. The stirring wheel 103 is provided with an adjustment component 300 for controlling different movable blades to move radially along the drum 109 according to the rotation speed of the drum 109. The adjustment assembly 300 includes a plurality of sliding pins, including an upper sliding pin 3011 corresponding to the upper idler wheel 2020, an intermediate sliding pin 3010 corresponding to the intermediate idler wheel 2021, and a lower sliding pin 301 corresponding to the lower idler wheel 2022. In an initial state, each sliding pin extends in the radial direction of the drum 109, and each sliding pin has an inner push portion at one end facing the inside of the drum 109 and an outer push portion at the other end. The inner push portion of the upper sliding pin 3011 is used for pushing and cooperating with the outer gear, the inner push portion of the intermediate sliding pin 3010 is used for pushing and cooperating with the intermediate gear, and the inner push portion of the lower sliding pin 301 is used for pushing and cooperating with the inner gear. In an initial state, the inner push portion of each sliding pin extends out of the corresponding idler wheel in a direction away from the idler wheel tower 202 and one end of the drum 109 along the radial direction of the drum, and the outer push portion of each sliding pin is retracted into the corresponding idler wheel in an initial state.

[0024] The adjustment assembly 300 further includes a plurality of movable push rods 303 penetrating the inner wall of the rotating drum 109, and the plurality of movable push rods 303 respectively include a first push rod, a second push rod and a third push rod, which are arranged in sequence from the inside to the outside along the radial direction of the rotating drum 109. The lower end of each movable push rod 303 is respectively provided with a push surface, the push surface of the first push rod is used for pushing and matching with the upper sliding pin 3011, the push surface of the second push rod is used for pushing and matching with the middle sliding pin 3010, and the push surface of the third push rod is used for pushing and matching with the lower sliding pin 301. When the outer gear pushes the upper sliding pin 3011, the outer push portion of the upper sliding pin 3011 pushes the first push rod upward to move, when the middle gear pushes the middle sliding pin 3010, the outer push portion of the middle sliding pin 3010 pushes the second push rod upward to move, and when the inner gear pushes the lower sliding pin 301, the outer push portion of the lower sliding pin 301 pushes the third push rod upward to move. In this embodiment, in the initial state, the heights of the lower ends of the first push rod, the second push rod and the third push rod in the up and down directions decrease successively, and the upper ends of the first push rod, the second push rod and the third push rod are in a flush state, and the upper sliding pin 3011, the middle sliding pin 3010 and the lower sliding pin 301 push the first push rod, the second push rod and the third push rod upward respectively, and the rising heights are the same.

[0025] In this embodiment, the adjustment assembly 300 further includes a gear ring 304 and a rotating ring 305 disposed above the rotating drum 109, and the rotating ring 305, the gear ring 304 and the rotating drum 109 are coaxially arranged from top to bottom. The lower side of the gear ring 304 is provided with a first step surface 3040, a second step surface 3041 and a third step surface 3042 coaxial with the gear ring 304, the first step surface 3040, the second step surface 3041 and the third step surface 3042 are staggered from top to bottom, and the heights of the first step surface 3040, the second step surface 3041 and the third step surface 3042 in the vertical direction increase successively. The upper ends of the movable push rods 303 can respectively extend upward from the upper end of the rotating drum 109 and respectively push and cooperate with the step surfaces to push the gear ring 304 upward to move a set distance. In the initial state, the upper end of each movable push rod 303 retracts into the rotating drum 109, and when the upper end of the first push rod extends out of the upper end of the rotating drum 109, it pushes and cooperates with the first step surface 3040, and the gear ring 304 moves upward by a first distance. When the upper end of the second push rod extends out of the upper end of the rotating drum 109, it pushes and cooperates with the second step surface 3041, and the gear ring 304 moves upward by a second distance. When the upper end of the third push rod extends out of the upper end of the rotating drum 109, it pushes and cooperates with the third step surface 3042, and the gear ring 304 moves upward by a third distance. Since the heights of the upper ends of the first push rod, the second push rod and the third push rod are the same after they rise respectively, and the heights of the first step surface 3040, the second step surface 3041 and the third step surface 3042 increase successively, when the first push rod, the second push rod and the third push rod are pushed and matched with the first step surface 3040, the second step surface 3041 and the third step surface 3042 respectively, the rising distances of the gear ring 304 are different, that is, the first distance, the second distance and the third distance decrease successively.

[0026] In this embodiment, the lower side of the rotating ring 305 is provided with an adjusting gear 306, a first gear 307, a second gear 308 and a third gear 309, and the adjusting gear 306, the first gear 307, the second gear 308 and the third gear 309 are respectively connected to the four movable blades in a one-to-one transmission manner. Fig.13 and Fig.14It can be seen that the axial thickness of the teeth on the adjusting gear 306 is greater than the axial thickness of the teeth on the first gear 307, the second gear 308 and the third gear 309, and the distances from the lower ends of the first gear 307, the second gear 308 and the third gear 309 to the lower side of the rotating ring 305 increase successively, wherein the second gear 308 and the third gear 309 both include a middle rotating shaft and transmission teeth fixed at both ends of the rotating shaft, so that the second gear 308 and the third gear 309 are dumbbell-shaped. In this embodiment, one end of the four movable blades close to the rotating drum 109 is respectively provided with a rack rod 401 that is movably inserted into the rotating ring 305, and the rack rod 401 of each movable blade is respectively meshed with the upper ends of the adjusting gear 306, the first gear 307, the second gear 308 and the third gear 309. Specifically, the upper ends of the adjusting gear 306, the first gear 307, the second gear 308 and the third gear 309 are respectively extended into the interior of the rotating ring 305, and the ends of the first gear 307, the second gear 308 and the third gear 309 that extend into the rotating ring 305 all have a tooth structure that meshes with the rack rod 401.

[0027] At the same time, the inner side of the gear ring 304 is provided with an inner tooth structure, and when the gear ring 304 is lifted up by each movable push rod 303, the adjusting gear 306 is always meshed with the inner tooth structure inside the gear ring 304. In addition, when the gear ring 304 moves up a first distance, the lower end of the first gear 307 meshes with the inner tooth structure of the gear ring 304, so that the two movable blades connected with the adjusting gear 306 and the first gear 307 can be synchronously retracted into the inside of the rotating drum 109. At this time, the two movable blades connected with the adjusting gear 306 and the first gear 307, the gear ring 304 and the rotating ring 305 form an iris mechanism. As long as any one of the two movable blades connected with the adjusting gear 306 and the first gear 307 moves into the inside of the rotating drum 109, the other will also move synchronously. At the same time, since the gear ring 304 moves up the first distance, it means that the outer gear at the lower end of the outer shaft 2012 is transmitted to the lower idler gear 2022, so that the drum 109 rotates at the first speed, that is, the rotation speed of the drum 109 is the highest at this time. At this time, the two movable blades farthest from each other among the four movable blades form an iris mechanism and are extended and retracted synchronously, which can adapt to the high-speed rotation of the drum 109.

[0028] Similarly, when the gear ring 304 moves up a second distance, the second gear 308 meshes with the inner gear structure of the gear ring 304, so that the two movable blades connected to the adjustment gear 306 and the second gear 308 can be synchronously retracted into the drum 109, and at this time, the two movable blades connected to the adjustment gear 306 and the second gear 308, the gear ring 304 and the rotating ring 305 form an iris mechanism. When the gear ring 304 moves up a third distance, the third gear 309 meshes with the inner gear structure of the gear ring 304, so that the two movable blades connected to the adjustment gear 306 and the third gear 309 can be synchronously retracted into the drum 109, and at this time, the two movable blades connected to the adjustment gear 306 and the third gear 309, the gear ring 304 and the rotating ring 305 form an iris mechanism. The present invention selects different movable blades to form an iris mechanism with the gear ring 304 and the rotating ring 305 according to different gears, and then uses two movable blades with different angles to adjust the force exerted on the stirring wheel 103 at different stirring speeds to achieve better regulation.

[0029] In this embodiment, the lower end of the connecting rod 101 is fixedly connected to the installation shaft 102, and the upper idler wheel 2020, the middle idler wheel 2021 and the lower idler wheel 2022 are rotatably mounted on the installation shaft 102. Each sliding pin is provided with a through slot for the installation shaft 102 to pass through, and the through slot is a long slot extending along the moving direction of the sliding pin, and an elastic reset member 302 is arranged in the through slot, and the two ends of the elastic reset member 302 are pressed against the installation shaft 102 and the inner wall of the through slot respectively, and the elastic reset member 302 is used to drive each sliding pin to an initial state. Each sliding pin includes two separately arranged inner and outer sections, the section close to the radially outer side of the rotating drum 109 is the outer section 3012, and the section on the radially inner side of the rotating drum 109 is the inner section 3013. The outer section 3012 constitutes the outer pushing portion, and the inner pushing portion is arranged on the inner section 3013. When each sliding pin moves radially outward along the rotating drum 109, the outer section 3012 can remain on the inner wall of the rotating drum 109 and always cooperate with the corresponding movable push rod 303 for pushing. It should be noted that the rotary drive mechanism uses a stepper motor, which can make the transmission shaft 201 always stop at a fixed angle position after each shutdown. Correspondingly, after each shutdown, each idler wheel can stay at the initial position each time, that is, each sliding pin extends along the radial direction of the rotating drum 109. When the idler wheel stops at the initial position, under the downward pressure of the gear ring 304, the lower end of each movable push rod 303 pushes the outer section 3012 of each sliding pin to return the outer section 3012 to the initial position. It should also be noted that the inner shaft 2010 and the intermediate shaft 2011 and the intermediate shaft 2011 and the outer shaft 2012 are respectively locked, so that the inner shaft 2010, the intermediate and outer shafts 2012 can rotate synchronously. At the same time, the upper ends of the inner shaft 2010, the intermediate shaft 2011 and the outer shaft 2012 are respectively provided with connecting gears of different diameters, and a connecting sleeve is movably connected to the output shaft of the stepper motor along the axial direction of the output shaft, and the connecting sleeve is provided with transmission ring gears corresponding to the connecting gears on the inner shaft 2010, the intermediate shaft 2011 and the outer shaft 2012 respectively. By moving the connecting sleeve along the axial direction of the output shaft, the inner shaft 2010, the intermediate shaft 2011 and the outer shaft 2012 can be driven to move along their own axes respectively, and the transmission ring gears in the connecting sleeve are respectively connected to the upper ends of the inner shaft 2010, the intermediate shaft 2011 and the outer shaft 2012, so that the stepper motor drives the transmission shaft 201 to rotate.

[0030] In this embodiment, an upper annular groove and a lower annular groove are provided on the outer wall of the connecting rod 101, the rotating ring 305 is rotatably installed in the upper annular groove, and the gear ring 304 is rotatably installed in the lower annular groove through a support frame, the support frame includes a support ring rotatably arranged in the lower annular groove, and a plurality of support rods fixedly connected to the outer side of the support ring, the plurality of support rods respectively extend along the radial direction of the gear ring 304 and are arranged radially, and the radial outer end of each support rod is fixedly connected to the gear ring 304. In addition, in this embodiment, the handheld part 100 is provided with gear buttons corresponding to the first gear, the second gear and the third gear respectively, and the handheld part 100 is also provided with a start button, by selecting a different gear button, one of the inner shaft 2010, the intermediate shaft 2011 and the outer shaft 2012 moves down and meshes with the corresponding idler wheel to realize transmission, and then the start button is pressed to start the rotary drive mechanism for stirring.

[0031] An embodiment of a paint stirring process includes the following steps: first, pouring raw materials and water into a paint container, then extending the above-mentioned paint stirring device into the paint container, starting a rotary drive mechanism to stir and mix the raw materials and water in the paint container to form a paint. During the stirring process, when one or more of the movable blades approach the inner wall of the paint container, the movable blades close to the inner wall of the paint container are subjected to a greater reverse resistance from the paint than other stirring blades 104, so that the movable blades can shrink toward the radial inner side of a stirring wheel 103, so that the entire stirring wheel 103 is subjected to an eccentric force away from the inner wall of the paint container, thereby causing the stirring wheel 103 to move toward the side away from the inner wall of the paint container.

[0032] Before starting the rotary drive mechanism, different gear buttons are selected first, so that the multi-speed transmission mechanism 200 is in different gears. After starting the rotary drive mechanism, the stirring wheel 103 and the stirring blade 104 stir the paint at different rotation speeds. When the multi-speed transmission mechanism 200 is in different gear positions, different two of the four movable blades will correspondingly form an iris mechanism with the gear ring 304 and the rotating ring 305. In this way, when one of the two movable blades that is in the front (the direction of circumferential rotation of the stirring wheel 103 is the front) approaches the inner wall of the paint container first, the reverse resistance of the paint on the movable blade will increase, thereby prompting the movable blade to move radially inwardly of the rotating drum 109, and the movable blade that forms the iris mechanism with the movable blade will synchronously move radially inwardly of the rotating drum 109, thereby making the combined force direction of the reverse resistance of the paint on the entire stirring wheel 103 point away from the inner wall of the paint container, thereby pulling the stirring wheel 103 away from the inner wall of the paint container, thereby minimizing the collision between the stirring blades 104 on the periphery of the stirring wheel 103 and the inner wall of the paint container, or reducing the damage caused by the collision between the stirring blades 104 and the inner wall of the paint container.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A paint stirring device, comprising a handheld portion (100) and a connecting rod (101) extending in an up-down direction, wherein the upper end of the connecting rod (101) is connected to the handheld portion (100), and the lower end is coaxially provided with a stirring wheel (103), and the stirring wheel (103) is provided with a plurality of stirring blades (104) at intervals in the circumferential direction, and a rotary drive mechanism is provided inside the handheld portion (100), and the rotary drive mechanism is transmission-connected to the stirring wheel (103) and is used to drive the stirring wheel (103) to rotate so as to stir the paint, characterized in that: At least two of the plurality of stirring blades (104) are movable blades, and the movable blades are movably arranged on the stirring wheel (103) along the radial direction of the stirring wheel (103); when the movable blades approach the inner wall of the paint container, the movable blades retract toward the radial inner side of the stirring wheel (103), so that the stirring wheel (103) is subjected to an eccentric force away from the inner wall of the paint container.

2. The paint stirring device according to claim 1, characterized in that: The stirring wheel (103) comprises a rotating drum (109) coaxially arranged with the connecting rod (101); the stirring blade (104) is movably inserted on the side wall of the rotating drum (109); the connecting rod (101) is a hollow cylinder structure; the upper end of the connecting rod (101) is fixedly connected to the hand-held part (100); the rotating drum (109) is rotatably arranged on the periphery of the lower end of the connecting rod (101); a transmission shaft (201) is coaxially rotatably arranged inside the connecting rod (101); the upper end of the transmission shaft (201) is transmission-connected to the rotary drive mechanism; the lower end extends out of the connecting rod (101) and is provided with a transmission gear (203); the transmission gear (203) is transmission-connected to the rotating drum (109) to drive the stirring wheel (103) and the stirring blade (104) to rotate.

3. The paint stirring device according to claim 2, characterized in that: A multi-speed transmission mechanism (200) is provided between the rotary drive mechanism and the rotating drum (109). The multi-speed transmission mechanism (200) comprises the transmission shaft (201) and the transmission gear (203), and also comprises an idler wheel tower (202) arranged in the rotating drum (109). The idler wheel tower (202) is located in the rotating drum (109) and is eccentrically arranged with respect to the rotating drum (109). The transmission shaft (201) comprises an inner shaft (2010), an intermediate shaft (2011), and an outer shaft (2012) which are coaxially sleeved together. The inner shaft (2010), the intermediate shaft (2011), and the outer shaft (2012) can respectively move reciprocatingly up and down in the connecting rod (101). The transmission gear (203) is provided in a rotating drum (109). 3) comprising an internal gear arranged at the lower end of the inner shaft (2010), an intermediate gear arranged at the lower end of the intermediate shaft (2011), and an external gear arranged at the lower end of the outer shaft (2012), wherein the diameters of the external gear, the intermediate gear, and the internal gear decrease in sequence, and the idler wheel tower (202) comprises an upper idler wheel (2020), an intermediate idler wheel (2021), and a lower idler wheel (2022) which are coaxially arranged in sequence from top to bottom, wherein the diameters of the upper idler wheel (2020), the intermediate idler wheel (2021), and the lower idler wheel (2022) increase in sequence, and the external gear is used for meshing with the upper idler wheel (2020) for transmission, the intermediate gear is used for meshing with the intermediate idler wheel (2021) for transmission, and the internal gear is used for meshing with the lower idler wheel (2022) meshing transmission, a stepped inner gear ring is provided on the inner wall of the rotating drum (109), and the upper idler wheel (2020), the intermediate idler wheel (2021) and the lower idler wheel (2022) are respectively meshed with the stepped inner gear ring; in an initial state, the outer shaft (2012), the intermediate shaft (2011) and the outer shaft (2012) are retracted toward the inside of the connecting rod (101), so that the outer gear, the intermediate gear and the inner gear are located above the upper idler wheel (2020); when one of the outer shaft (2012), the intermediate shaft (2011) and the inner shaft (2010) moves downward and meshes with the corresponding idler wheel, the rotating drive mechanism drives the rotating drum (109) and the stirring blade (104) to rotate; when the outer shaft (20 12) When the inner shaft (2010) moves downward and meshes with the upper idler wheel (2020), the multi-speed transmission mechanism (200) is in a first gear position, and the rotating drum (109) and the stirring blade (104) rotate at a first speed. When the intermediate shaft (2011) moves downward and meshes with the intermediate idler wheel (2021), the multi-speed transmission mechanism (200) is in a second gear position, and the rotating drum (109) and the stirring blade (104) rotate at a second speed. When the inner shaft (2010) moves downward and meshes with the lower idler wheel (2022), the multi-speed transmission mechanism (200) is in a third gear position, and the rotating drum (109) and the stirring blade (104) rotate at a third speed. The first speed, the second speed, and the third speed decrease in sequence.

4. The paint stirring device according to claim 3, characterized in that: The stirring wheel (103) is provided with an adjustment component (300) for controlling different movable blades to move radially along the rotating drum (109) according to the rotation speed of the rotating drum (109). The adjustment component (300) comprises a plurality of sliding pins, and the plurality of sliding pins comprises an upper sliding pin (3011) arranged corresponding to the upper idler wheel (2020), an intermediate sliding pin (3010) arranged corresponding to the intermediate idler wheel (2021), and a lower sliding pin (301) arranged corresponding to the lower idler wheel (2022). 0) also includes a plurality of movable push rods (303), the plurality of movable push rods (303) respectively including a first push rod, a second push rod and a third push rod respectively arranged in the inner wall of the rotating drum (109), the lower end of each movable push rod (303) is respectively provided with a push surface, the push surface of the first push rod is used for pushing and cooperating with the upper sliding pin (3011), the push surface of the second push rod is used for pushing and cooperating with the middle sliding pin (3010), and the push surface of the third push rod is used for pushing and cooperating with the lower sliding pin (301), in the initial state, each sliding pin The inner push portion of each sliding pin (3011) is used for pushing and cooperating with the outer gear, the inner push portion of the middle sliding pin (3010) is used for pushing and cooperating with the middle gear, and the inner push portion of the lower sliding pin (301) is used for pushing and cooperating with the inner gear. In the initial state, the inner push portion of each sliding pin is moved away from the idler wheel tower (202) in the radial direction of the rotating drum and close to the rotating drum (109). The outer push portion of each sliding pin is retracted into the corresponding idler wheel in the initial state; when the outer gear pushes the upper sliding pin (3011), the outer push portion of the upper sliding pin (3011) pushes the first push rod upward to move; when the middle gear pushes the middle sliding pin (3010), the outer push portion of the middle sliding pin (3010) pushes the second push rod upward to move; when the inner gear pushes the lower sliding pin (301), the outer push portion of the lower sliding pin (301) pushes the third push rod upward to move.

5. The paint stirring device according to claim 4, characterized in that: The adjustment assembly (300) further comprises a gear ring (304) and a rotating ring (305) arranged above the rotating drum (109); the rotating ring (305), the gear ring (304) and the rotating drum (109) are coaxially arranged from top to bottom; the lower side of the gear ring (304) is provided with a first step surface (3040), a second step surface (3041) and a third step surface (3042) coaxial with the gear ring (304); the first step surface (3040), the second step surface (3041) and the third step surface (3042) are staggered from top to bottom; the upper ends of the movable push rods (303) can respectively extend upward from the upper end of the rotating drum (109) and respectively engage with the top of each step surface. The gear ring (304) is pushed and matched to push the gear ring (304) upward to move a set distance; in the initial state, the upper end of each movable push rod (303) is retracted into the rotating drum (109), and when the upper end of the first push rod extends out of the upper end of the rotating drum (109), it pushes and matches with the first step surface (3040), and the gear ring (304) moves upward a first distance; when the upper end of the second push rod extends out of the upper end of the rotating drum (109), it pushes and matches with the second step surface (3041), and the gear ring (304) moves upward a second distance; when the upper end of the third push rod extends out of the upper end of the rotating drum (109), it pushes and matches with the third step surface (3042), and the gear ring (304) moves upward a third distance; the first distance, the second distance and The third distance decreases successively; the lower side of the rotating ring (305) is provided with an adjusting gear (306), a first gear (307), a second gear (308) and a third gear (309); four movable blades are provided; the adjusting gear (306), the first gear (307), the second gear (308) and the third gear (309) are respectively connected to the four movable blades in a one-to-one transmission manner; an inner tooth structure is provided on the inner side of the gear ring (304); the adjusting gear (306) is always meshed with the inner tooth structure on the inner side of the gear ring (304); when the gear ring (304) moves up the first distance, the first gear (307) meshes with the inner tooth structure of the gear ring (304); , so that the two movable blades connected to the adjusting gear (306) and the first gear (307) can be synchronously retracted into the interior of the rotating drum (109); when the gear ring (304) moves up a second distance, the second gear (308) meshes with the internal gear structure of the gear ring (304), so that the two movable blades connected to the adjusting gear (306) and the second gear (308) can be synchronously retracted into the interior of the rotating drum (109); when the gear ring (304) moves up a third distance, the third gear (309) meshes with the internal gear structure of the gear ring (304), so that the two movable blades connected to the adjusting gear (306) and the third gear (309) can be synchronously retracted into the interior of the rotating drum (109).

6. The paint stirring device according to claim 5, characterized in that: One end of the four movable blades close to the rotating drum (109) is respectively provided with a rack rod (401) movably inserted into the rotating ring (305), and the rack rod (401) of each movable blade is respectively meshed with the adjusting gear (306), the first gear (307), the second gear (308) and the third gear (309) in a one-to-one correspondence.

7. The paint stirring device according to claim 6, characterized in that: The lower end of the connecting rod (101) is fixedly connected to a mounting shaft (102); an upper idler wheel (2020), an intermediate idler wheel (2021) and a lower idler wheel (2022) are rotatably mounted on the mounting shaft (102); each sliding pin is provided with a through slot for the mounting shaft (102) to pass through; the through slot is a long slot extending along the moving direction of the sliding pin; an elastic reset member (302) is provided in the through slot; two ends of the elastic reset member (302) are respectively pressed against the mounting shaft (102) and the inner wall of the through slot; the elastic reset member (302) is used to drive each sliding pin to an initial state.

8. The paint stirring device according to claim 7, characterized in that: Each sliding pin comprises two separately arranged inner and outer sections, wherein the section close to the radially outer side of the rotating drum (109) is the outer section (3012), and the section located radially inside the rotating drum (109) is the inner section (3013). The outer section (3012) constitutes the outer pushing portion, and the inner pushing portion is arranged on the inner section (3013). When each sliding pin moves radially outward along the rotating drum (109), the outer section (3012) can remain on the inner wall of the rotating drum (109) and always cooperate with the corresponding movable push rod (303) in pushing.

9. The paint stirring device according to claim 8, characterized in that: An upper annular groove and a lower annular groove are formed on the outer wall of the connecting rod (101); the rotating ring (305) is rotatably mounted in the upper annular groove; the gear ring (304) is rotatably mounted in the lower annular groove via a support frame; the support frame comprises a support ring rotatably mounted in the lower annular groove, and a plurality of support rods fixedly connected to the outside of the support ring; the plurality of support rods extend radially along the gear ring (304) and are arranged radially; the radial outer end of each support rod is fixedly connected to the gear ring (304).

10. A coating stirring process, characterized in that: The invention comprises the following steps: firstly pouring raw materials and water into a paint container, then extending the paint stirring device described in any one of claims 1 to 9 into the paint container, starting a rotary drive mechanism to stir and mix the raw materials and water in the paint container to form a paint; during the stirring process, when one or more of the movable blades approach the inner wall of the paint container, the movable blades approaching the inner wall of the paint container are subjected to a greater reverse resistance from the paint than other stirring blades (104), so that the movable blades can be retracted toward the radial inner side of the stirring wheel (103), so that the entire stirring wheel (103) is subjected to an eccentric force away from the inner wall of the paint container, thereby causing the stirring wheel (103) to move toward a side away from the inner wall of the paint container.

Images