An automobile metal paint stirring device and method

Abstract

The present invention relates to the field of metal paint stirring, and specifically to an automobile metal paint stirring device and method, which includes a stirring tank and a tank cover installed on the top of the stirring tank. A stirring mechanism is installed at the bottom of the tank cover. A guiding component for guiding the stirring mechanism is installed on the inner wall of the stirring tank. A driving motor for driving the stirring mechanism to rotate is installed on the top of the tank cover. Through the cooperation of the guiding component, the first limiting mechanism and the second limiting mechanism, the stirring mechanism is guided and limited. When the stirring rod rotates for stirring, the stirring rod and the limiting block are in contact with the upper and lower sides of the guiding ring, and the guiding ring is used to support and guide the stirring rod, improving the stability of the stirring rod during operation. At the same time, the first limiting mechanism and the second limiting mechanism can block and limit the stirring rod above the corresponding notch step by step from top to bottom, preventing the stirring rod and the limiting block from disengaging from the notch, and further improving the stability of the stirring mechanism during operation.

Description

Technical Field

[0001] The present invention relates to the technical field of metal paint stirring, and specifically relates to an automobile metal paint stirring device and method. Background Art

[0002] Automobile metal paint is a kind of automobile surface treatment material, which realizes special visual effects by adding fine metal powders (such as aluminum powder, copper powder, etc.) into the paint base. Since the metal powder increases the hardness of the paint surface, the metal paint is more wear-resistant than ordinary paint and can better resist minor scratches. At the same time, the metal paint also has good ultraviolet resistance, which can slow down the aging process of the car paint and provide certain anti-corrosion performance.

[0003] The production process of automobile metal paint mainly includes processes such as raw material preparation, formula design, mixing and dispersion, adjustment and testing, filtration, packaging, etc. Among them, in the mixing and dispersion process, raw materials such as basic resin, solvent, pigments (including metal powders), additives, etc. need to be added into the mixing container according to specific proportions for stirring and mixing. Existing metal paints are generally stirred by a powder mixer. During stirring, the motor drives the stirring shaft to rotate, and the stirring shaft mixes various raw materials of the metal paint. The above-mentioned metal paint stirring method still has the following deficiencies: 1. During the rotation of the stirring shaft, the end of the stirring rod on the stirring shaft far from the axis is in a suspended state. Due to the lack of corresponding support, it is easy to cause the stirring rod to shake during stirring, affecting the stability of the stirring device during operation; 2. Existing stirring shafts are generally of single-axis structure. The stirring shaft is installed on the tank cover and can be taken out of the stirring tank as the tank cover is opened. However, only the part where the top of this stirring shaft is connected to the tank cover has corresponding support, and the bottom is generally in a suspended state, increasing the possibility of shaking during the rotation of the stirring shaft and further affecting the stability of the stirring device. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an automobile metal paint stirring device, which includes a stirring tank and a tank cover installed on the top of the stirring tank. A stirring mechanism is installed at the bottom of the tank cover, a guiding component for guiding the stirring mechanism is installed on the inner wall of the stirring tank, and a driving motor for driving the stirring mechanism to rotate is installed on the top of the tank cover.

[0005] The stirring mechanism includes an inner shaft rod fixedly installed at the bottom of the tank cover. An outer shaft rod is rotatably installed outside the inner shaft rod through a bearing. A plurality of groups of stirring rods are equidistantly installed up and down outside the outer shaft rod. A plurality of stirring rods in the same group are circumferentially and evenly connected to the outer shaft rod. A limiting block is fixedly connected to the bottom of the end of the stirring rod far from the center of the outer shaft rod.

[0006] The guiding assembly includes a plurality of guiding rings distributed vertically on the inner wall of the mixing tank. A plurality of notches cooperating with the limiting blocks are circumferentially and uniformly distributed on the inner side of the guiding rings. The lowermost guiding ring is fixedly connected to the mixing tank, and the other guiding rings are slidably connected to the mixing tank up and down, and a plurality of reset components are circumferentially and uniformly installed on the outer ring walls thereof.

[0007] Except for the lowermost guiding ring, a first limiting mechanism for blocking and limiting the corresponding stirring rod is circumferentially and uniformly installed at the bottom of each of the other guiding rings. A second limiting mechanism for blocking and limiting the uppermost stirring rod is circumferentially and uniformly installed on the inner wall of the mixing tank.

[0008] In a possible implementation manner, the bottom end of the inner shaft rod extends below the outer shaft rod and is circumferentially and uniformly connected with a plurality of triangular support frames. The bottom of the triangular support frame abuts against the inner bottom wall of the mixing tank. A diagonal brace is fixedly connected between the top of the stirring rod and the outer ring wall of the outer shaft rod. The diagonal brace, the outer shaft rod and the stirring rod form a triangular structure. The upper surfaces of the stirring rod, the triangular support frame and the diagonal brace are all convex arc surfaces.

[0009] In a possible implementation manner, the cross-sectional area of the guiding ring is a right triangle, and the side close to the center is an inclined surface sloping downward. The end of the stirring rod away from the center of the outer shaft rod is slidably matched with the inclined surface of the corresponding guiding ring. The limiting block is located below the corresponding guiding ring and cooperates with the corresponding notch. The notches on different guiding rings gradually become smaller from top to bottom. The length of the stirring rod gradually shortens from top to bottom, and the end thereof away from the center of the outer shaft rod is located outside the limiting block.

[0010] In a possible implementation manner, the reset component includes a slider fixedly connected to the outer ring wall of the corresponding guiding ring. A vertical sliding groove corresponding to the slider is formed on the inner wall of the mixing tank. The slider is slidably installed up and down in the vertical sliding groove. A first reset spring is fixedly connected between the top of the slider and the top of the vertical sliding groove. A retaining piece located inside the first reset spring is further fixedly connected to the top of the slider. The retaining piece is located at the opening of the vertical sliding groove and is slidably connected to the inner wall of the mixing tank up and down.

[0011] In a possible implementation manner, the first limiting mechanism includes a first pressing rod fixedly connected to the bottom of the corresponding guiding ring. A rotating ring is rotatably connected to the bottom of the first pressing rod. A second pressing rod is fixedly connected to the outer ring wall of the rotating ring. A rolling ball is rotatably installed at the bottom of the second pressing rod. A rotating component for driving the rotating ring to rotate is installed at the bottom of the first pressing rod. The rotating component includes a top rod slidably installed up and down at the bottom of the first pressing rod. The bottom end of the top rod slidably penetrates through the central hole of the rotating ring to the lower side of the rotating ring. A second return spring is fixedly connected between the top of the top rod and the inner wall of the first pressing rod. A plurality of first inclined grooves are circumferentially and evenly formed in the rotating ring. A plurality of first sliding rods are circumferentially and evenly installed on the outer ring wall of the top rod. The first sliding rods are slidably installed in the corresponding first inclined grooves. A plurality of fixing blocks are fixedly connected to the inner wall of the mixing tank and located directly below the corresponding top rods.

[0012] In a possible implementation manner, the second limiting mechanism includes a fixed pipe fixedly connected to the inner wall of the mixing tank. The fixed pipes and the notches are distributed alternately. An active block is slidably installed up and down inside the fixed pipe. An L-shaped pressing plate is slidably installed at the bottom of the active block along its width direction. One end of the horizontal section of the L-shaped pressing plate away from the vertical section extends above the corresponding notch and a rolling ball is rotatably installed at the bottom. A downward pressing component for pushing the active block to move up and down is installed inside the fixed pipe. A guiding component for guiding the sliding of the L-shaped pressing plate is installed on the inner wall of the fixed pipe. A sealing telescopic plate is installed at the bottom of the fixed pipe. The vertical section of the L-shaped pressing plate slidably penetrates through the sealing telescopic plate. A driving component for driving the downward pressing component to move up and down is installed on the tank cover.

[0013] In a possible implementation manner, the downward pressing component includes a wedge block slidably installed up and down at the top of the fixed pipe. The side of the wedge block close to the center of the mixing tank is an inclined surface sloping downward. A baffle is fixedly connected inside the fixed pipe between the wedge block and the active block. A linkage rod is fixedly connected to the bottom of the wedge block. The bottom end of the linkage rod slidably penetrates below the baffle and is fixedly connected to the top of the active block. A third return spring sleeved on the linkage rod is fixedly connected to the top of the baffle.

[0014] In a possible implementation manner, the guiding component includes second inclined grooves formed on the inner walls of the fixed pipe parallel to the width direction of the active block. The number of second inclined grooves on the inner walls of the same side of the fixed pipe is two and they are distributed vertically and parallelly. Two vertically distributed second sliding rods are fixedly connected to the side of the vertical section of the L-shaped pressing plate close to the corresponding second inclined grooves. The second sliding rods are slidably installed in the corresponding second inclined grooves.

[0015] In a possible implementation manner, the driving assembly includes a plurality of turntables circumferentially and evenly installed on the tank cover. The bottom of the turntable rotates through to the lower side of the tank cover and is fixedly connected with a pushing rod that cooperates with the wedge block. The axis of the pushing rod does not coincide with the axis of the turntable. A first gear ring is coaxially and fixedly connected to the top of the turntable. A second gear ring coaxial with the inner shaft rod is rotatably installed on the top of the tank cover. A plurality of the first gear rings are all meshed with the second gear ring. A handle is fixedly connected to the outer side of the second gear ring. A limit bolt is threadedly connected to the handle. Two limit holes distributed front and back are opened on the top of the tank cover, and the distances between the two limit holes and the axis of the inner shaft rod are equal. The limit bolt is inserted and matched with the limit hole.

[0016] The present invention also provides a method for stirring automotive metal paint, which specifically includes the following steps: S1: Open the feed port, add various raw materials of the metal paint to the stirring tank from the feed port. When feeding, it should be noted that the added raw materials cannot exceed the top of the fixed pipe to prevent the raw materials from entering the fixed pipe from above. After adding, close the feed port.

[0017] S2: Drive the outer shaft rod to rotate through the drive motor, and then the outer shaft rod drives the stirring rod to rotate to mix and stir various raw materials. When the stirring rod rotates, the guiding ring guides and limits the stirring rod and the limiting block to improve the stability of the stirring rod during rotation.

[0018] S3: After stirring is completed, open the discharge port at the bottom of the stirring tank 1 to discharge the raw materials.

[0019] The beneficial effects of the present invention are as follows: 1. The present invention guides and limits the stirring mechanism through the cooperation of the guiding assembly, the first limiting mechanism, and the second limiting mechanism. When the stirring rod rotates and stirs, the stirring rod and the limiting block abut against the upper and lower sides of the guiding ring, and the guiding ring is used to support and guide the stirring rod to improve the stability of the stirring rod during operation. At the same time, the first limiting mechanism and the second limiting mechanism can block and limit the stirring rod above the corresponding notch step by step from top to bottom to prevent the stirring rod and the limiting block from separating from the notch, further improving the stability of the stirring mechanism during operation.

[0020] 2. The present invention designs the stirring mechanism in the form of a double sleeve rod for stirring. When the outer shaft rod drives the stirring rod to stir the raw materials, the triangular support frame at the bottom end of the inner shaft rod can support on the bottom of the stirring tank, and the inner shaft rod plays a role in stably supporting the outer shaft rod to prevent the lower end of the outer shaft rod from being unstable during rotation. At the same time, both the triangular support frame and the diagonal brace form a triangular structure, further improving the stability of the stirring rod during rotation.

[0021] 3. When disassembling the present invention, only need to rotate the handle counterclockwise to make the pushing rod no longer press the wedge block, then release the fixation between the can lid and the mixing tank, and lift the can lid upward, so that the second limiting mechanism and the first limiting mechanism can automatically release the blocking and limiting of the mixing rod, facilitating the quick disassembly of the can lid and the mixing mechanism from the mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2 is a front cross-sectional view of the present invention.

[0024] Figure 3 is a three-dimensional structural schematic diagram of the mixing mechanism of the present invention.

[0025] Figure 4 is a three-dimensional structural schematic diagram of the guiding component of the present invention.

[0026] Figure 5 is a three-dimensional structural schematic diagram of the first limiting mechanism of the present invention.

[0027] Figure 6 is a three-dimensional structural schematic diagram of the rotating component of the present invention.

[0028] Figure 7 is a partial cross-sectional view of the second limiting mechanism of the present invention.

[0029] Figure 8 is a three-dimensional structural schematic diagram of the second inclined groove of the present invention.

[0030] Figure 9 is a partial cross-sectional view of the can lid of the present invention.

[0031] In the figure: 1, stirring tank; 11, alignment block; 2, tank cover; 21, connecting ring; 22, fixing bolt; 3, stirring mechanism; 31, inner shaft; 32, outer shaft; 33, stirring rod; 34, limiting block; 35, triangular support frame; 36, diagonal support rod; 4, guide assembly; 41, guide ring; 42, notch; 43, reset assembly; 431, slider; 432, reset spring 1; 433, baffle; 5, limiting mechanism 1; 51, first pressure rod; 52, rotating ring; 53, second pressure rod; 54, rotating assembly; 541, top rod; 542, reset spring 2; 5 43. Inclined slot one; 544. Slide bar one; 545. Fixed block; 6. Limiting mechanism two; 61. Fixed tube; 62. Movable block; 63. L-shaped pressure plate; 64. Pressing assembly; 641. Wedge block; 642. Linking rod; 643. Baffle; 644. Return spring three; 65. Guide assembly; 651. Inclined slot two; 652. Slide bar two; 66. Sealing telescopic plate; 67. Driving assembly; 671. Turntable; 672. Pushing rod; 673. Gear ring one; 674. Gear ring two; 675. Handle; 676. Limiting bolt; 677. Limiting hole; 7. Driving motor. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1 and Figure 2 A stirring device for automotive metallic paint comprises a stirring tank 1 and a tank cover 2 installed on the top of the stirring tank 1, a stirring mechanism 3 is installed at the bottom of the tank cover 2, a guiding component 4 for guiding the stirring mechanism 3 is installed on the inner wall of the stirring tank 1, and a driving motor 7 for driving the stirring mechanism 3 to rotate is installed on the top of the tank cover 2.

[0034] See also Figure 2 and Figure 3 The stirring mechanism 3 includes an inner shaft rod 31 fixedly installed at the bottom of the tank cover 2, an outer shaft rod 32 is rotatably installed on the outside of the inner shaft rod 31 through a bearing, and a plurality of groups of stirring rods 33 are equidistantly installed on the outside of the outer shaft rod 32. The plurality of stirring rods 33 in the same group are evenly connected to the outer shaft rod 32 in the circumferential direction, and the bottom of the stirring rod 33 away from the center end of the outer shaft rod 32 is fixedly connected to a limiting block 34, and the output shaft of the driving motor 7 rotates and passes through the bottom of the tank cover 2 and is connected to the outer shaft rod 32 through a gear set.

[0035] See alsoFigure 2 and Figure 4 The guiding component 4 includes a plurality of guiding rings 41 distributed vertically on the inner wall of the stirring tank 1. A plurality of notches 42 cooperating with the limiting blocks 34 are circumferentially and uniformly distributed on the inner side of the guiding rings 41. The lowermost guiding ring 41 is fixedly connected to the stirring tank 1, and the other guiding rings 41 are slidably connected to the stirring tank 1 up and down, and a plurality of reset components 43 are circumferentially and uniformly installed on the outer circumferential wall thereof.

[0036] Please refer to Figure 2 、 Figure 5 and Figure 7 In addition to the lowermost guiding ring 41, a first limiting mechanism 5 for blocking and limiting the corresponding stirring rod 33 is circumferentially and uniformly installed at the bottom of each of the other guiding rings 41, and a second limiting mechanism 6 for blocking and limiting the uppermost stirring rod 33 is circumferentially and uniformly installed on the inner wall of the stirring tank 1.

[0037] Please refer to Figure 2 and Figure 3 After the bottom end of the inner shaft rod 31 extends below the outer shaft rod 32, a plurality of triangular support frames 35 are circumferentially and uniformly connected thereto. The bottom of the triangular support frames 35 abuts against the inner bottom wall of the stirring tank 1. A diagonal brace 36 is fixedly connected between the top of the stirring rod 33 and the outer circumferential wall of the outer shaft rod 32. The diagonal brace 36 forms a triangular structure with the outer shaft rod 32 and the stirring rod 33. The upper surfaces of the stirring rod 33, the triangular support frames 35 and the diagonal brace 36 are all convex arc surfaces.

[0038] By abutting the triangular support frames 35 against the inner bottom wall of the stirring tank 1, the triangular support frames 35 play a role in supporting the bottom of the inner shaft rod 31, improving the stability of the inner shaft rod 31 and the outer shaft rod 32. The diagonal brace 36 plays a role in strengthening and supporting the stirring rod 33, improving the firmness and stability of the stirring rod 33 during stirring. The arc surfaces on the stirring rod 33, the triangular support frames 35 and the diagonal brace 36 can avoid the accumulation of paint and facilitate the feeding.

[0039] Please refer to Figure 2 and Figure 4 The cross-sectional area of the guiding ring 41 is a right triangle, and the side close to the center is an inclined surface sloping downward. One end of the stirring rod 33 away from the center of the outer shaft rod 32 is slidably matched with the inclined surface of the corresponding guiding ring 41. The limiting block 34 is located below the corresponding guiding ring 41 and cooperates with the corresponding notch 42. The notches 42 on different guiding rings 41 gradually become smaller from top to bottom. The length of the stirring rod 33 gradually shortens from top to bottom, and one end thereof away from the center of the outer shaft rod 32 is located outside the limiting block 34.

[0040] By making the notch 42 gradually become smaller from top to bottom and the stirring rod 33 gradually shorten from top to bottom, when installing the stirring rod 33, the lower stirring rod 33 can sequentially pass through the upper notch 42 and move downward until the stirring rod 33 is pressed against the corresponding guiding ring 41. At this time, the stirring rod 33 cannot pass through the notch 42 on the corresponding guiding ring 41, while the limiting block 34 at the bottom of the stirring rod 33 can pass through the corresponding notch 42 and move to the lower part of the corresponding guiding ring 41. In this way, when the stirring rod 33 rotates for stirring, the guiding ring 41 can play a role of guiding and limiting between the stirring rod 33 and the limiting block 34, improving the stability of the end of the stirring rod 33 far from the inner shaft rod 31 during stirring.

[0041] Please refer to Figure 2 and Figure 4 As shown in FIGS. and, the reset assembly 43 includes a slider 431 fixedly connected to the outer wall of the corresponding guiding ring 41. A vertical sliding groove corresponding to the slider 431 is formed on the inner wall of the stirring tank 1. The slider 431 is slidably installed up and down in the vertical sliding groove. A first reset spring 432 is fixedly connected between the top of the slider 431 and the top of the vertical sliding groove. A retaining piece 433 located inside the first reset spring 432 is also fixedly connected to the top of the slider 431. The retaining piece 433 is located at the opening of the vertical sliding groove and is slidably connected to the inner wall of the stirring tank 1 up and down.

[0042] Except for the lowermost guiding ring 41, when the other guiding rings 41 are pressed downward by the corresponding stirring rods 33, they will move downward. The slider 431 will move downward along the vertical sliding groove. At this time, the first reset spring 432 is gradually stretched. When the guiding ring 41 moves downward, it will drive the corresponding limiting mechanism 5 downward, so that the limiting mechanism 5 blocks above the corresponding lower notch 42, preventing the limiting block 34 from falling off from the notch 42. When the retaining piece 433 moves downward, it will gradually close the vertical sliding groove, preventing subsequent raw materials from entering the vertical sliding groove.

[0043] Please refer to Figure 2 and Figure 5 As shown in FIGS.,, and, the limiting mechanism 5 includes a first pressing rod 51 fixedly connected to the bottom of the corresponding guiding ring 41. The bottom of the first pressing rod 51 is rotatably connected to a rotating ring 52. A second pressing rod 53 is fixedly connected to the outer wall of the rotating ring 52. A ball is rotatably installed at the bottom of the second pressing rod 53. A rotating assembly 54 for driving the rotating ring 52 to rotate is installed at the bottom of the first pressing rod 51.

[0044] Please refer to Figure 2 , Figure 5 and Figure 6, the rotating assembly 54 includes a top rod 541 slidably mounted up and down at the bottom of the first pressing rod 51. The bottom end of the top rod 541 slides through the central hole of the rotating ring 52 to the lower side of the rotating ring 52. A second return spring 542 is fixedly connected between the top of the top rod 541 and the inner wall of the first pressing rod 51. A number of first inclined grooves 543 are circumferentially and evenly formed on the rotating ring 52. A number of first sliding rods 544 are circumferentially and evenly mounted on the outer circumferential wall of the top rod 541. The first sliding rods 544 are slidably mounted in the corresponding first inclined grooves 543. A number of fixing blocks 545 are fixedly connected to the inner wall of the mixing tank 1 and located directly below the corresponding top rods 541.

[0045] In the initial state, the second pressing rod 53 deflects to the side of the notch 42 to avoid affecting the mixing rod 33 and the limiting block 34 passing through the notch 42. When the mixing rods 33 other than the lowermost one press down the corresponding guiding rings 41, the guiding rings 41 will push the corresponding first pressing rods 51 downward. When the first pressing rod 51 moves downward until the top rod 541 abuts against the fixing block 545, as the first pressing rod 51 continues to move downward, the top rod 541 will be gradually pushed into the first pressing rod 51 and compress the second return spring 542. The top rod 541 drives the first sliding rods 544 to gradually approach the first pressing rod 51. At this time, the first sliding rods 544 will slide in the first inclined grooves 543. By using the cooperation between the first sliding rods 544 and the first inclined grooves 543, the rotating ring 52 and the second pressing rod 53 are guided to rotate clockwise, so that the second pressing rod 53 is rotated above the corresponding mixing rod 33. In this way, during the rotation of the mixing rod 33, the second pressing rod 53 always blocks the top of the notch 42 to prevent the mixing rod 33 and the limiting block 34 from detaching from the notch 42.

[0046] When it is necessary to release the blocking and limiting of the second pressing rod 53 on the mixing rod 33, the tank cover 2 drives the uppermost mixing rod 33 to move upward. As the uppermost mixing rod 33 releases the pressing on the uppermost guiding ring 41, the guiding ring 41 will move upward under the action of the restoring force of the first return spring 432. During the upward movement of the guiding ring 41, it will drive the corresponding first pressing rod 51 to move upward. As the first pressing rod 51 moves upward, the top rod 541 is no longer squeezed. At this time, the restoring force of the second return spring 542 is used to push the top rod 541 away from the first pressing rod 51. When the top rod 541 moves away from the first pressing rod 51, it will push the rotating ring 52 to rotate counterclockwise through the first sliding rods 544. Then the rotating ring 52 drives the second pressing rod 53 to rotate counterclockwise and leave the top of the corresponding mixing rod 33, releasing the blocking and limiting of the second pressing rod 53 on the mixing rod 33.

[0047] Please refer to Figure 2 and Figure 7, the second limiting mechanism 6 includes a fixed pipe 61 fixedly connected to the inner wall of the mixing tank 1. The fixed pipe 61 and the notch 42 are staggered. An active block 62 is slidably installed up and down inside the fixed pipe 61. An L-shaped pressing plate 63 is slidably installed at the bottom of the active block 62 along its width direction. One end of the horizontal section of the L-shaped pressing plate 63 away from the vertical section extends above the corresponding notch 42 and a ball is rotatably installed at the bottom. A downward pressing component 64 for pushing the active block 62 to move up and down is installed inside the fixed pipe 61. A guiding component 65 for guiding the sliding of the L-shaped pressing plate 63 is installed on the inner wall of the fixed pipe 61. A sealing telescopic plate 66 is installed at the bottom of the fixed pipe 61. The vertical section of the L-shaped pressing plate 63 slidably penetrates through the sealing telescopic plate 66. A driving component 67 for driving the downward pressing component 64 to move up and down is installed on the tank cover 2.

[0048] When the L-shaped pressing plate 63 slides along the bottom of the active block 62, the sealing telescopic plate 66 will change in length as the L-shaped pressing plate 63 moves, and the bottom of the fixed pipe 61 is sealed by the sealing telescopic plate 66 to prevent the paint from entering the inside of the fixed pipe 61.

[0049] Please refer to Figure 7 , the downward pressing component 64 includes a wedge-shaped block 641 slidably installed at the top of the fixed pipe 61. One side of the wedge-shaped block 641 close to the center of the mixing tank 1 is an inclined surface sloping downward. A baffle 643 is fixedly connected inside the fixed pipe 61 between the wedge-shaped block 641 and the active block 62. A linkage rod 642 is fixedly connected to the bottom of the wedge-shaped block 641. The bottom end of the linkage rod 642 slides through to the lower side of the baffle 643 and is fixedly connected to the top of the active block 62. A third return spring 644 sleeved outside the linkage rod 642 is fixedly connected to the top of the baffle 643.

[0050] Please refer to Figure 7 and Figure 8 , the guiding component 65 includes inclined slots two 651 opened on the inner walls of the fixed pipe 61 parallel to the width direction of the active block 62. The number of inclined slots two 651 on the inner walls of the same side of the fixed pipe 61 is two and they are distributed parallel to each other up and down. Two sliding rods two 652 distributed up and down are fixedly connected to one side of the vertical section of the L-shaped pressing plate 63 close to the corresponding inclined slot two 651. The sliding rods two 652 are slidably installed in the corresponding inclined slots two 651.

[0051] Please refer to Figure 2 , Figure 7 and Figure 9, the driving assembly 67 includes a plurality of turntables 671 evenly installed on the can lid 2 in the circumferential direction. The bottom of the turntable 671 rotates through to the lower side of the can lid 2 and is fixedly connected with a pushing rod 672 that cooperates with the wedge block 641. The axis of the pushing rod 672 does not coincide with the axis of the turntable 671. A first gear ring 673 is coaxially and fixedly connected to the top of the turntable 671. A second gear ring 674 coaxial with the inner shaft rod 31 is rotatably installed on the top of the can lid 2. A plurality of first gear rings 673 are all meshed with the second gear ring 674. A handle 675 is fixedly connected to the outer side of the second gear ring 674. A limit bolt 676 is threadedly connected to the handle 675. Two limit holes 677 distributed front and back are opened on the top of the can lid 2, and the distances from the two limit holes 677 to the axis of the inner shaft rod 31 are equal. The limit bolt 676 is inserted and cooperated with the limit hole 677.

[0052] After the can lid 2 is covered on the mixing tank 1, by pushing the handle 675 to drive the second gear ring 674 to rotate clockwise by a certain angle, the second gear ring 674 drives the first gear ring 673 to rotate counterclockwise. The first gear ring 673 drives the turntable 671 and the pushing rod 672 to rotate counterclockwise, moves the pushing rod 672 to the inclined surface of the corresponding wedge block 641 and pushes the wedge block 641 to move downward. When the wedge block 641 moves downward, it will push the movable block 62 to move downward together through the linkage rod 642. At this time, the third reset spring 644 will be compressed. When the movable block 62 moves downward, it will drive the L-shaped pressing plate 63 to move downward. At this time, the chute two 651 is used to guide the sliding rod two 652, so that the sliding rod two 652 and the L-shaped pressing plate 63 slide along the width direction of the movable block 62 during the downward movement, so that the L-shaped pressing plate 63 moves to the top of the uppermost stirring rod 33, and the uppermost stirring rod 33 is blocked and limited by the L-shaped pressing plate 63 to prevent the uppermost stirring rod 33 from separating from the corresponding guiding ring 41.

[0053] When the uppermost stirring rod 33 is blocked and limited, the lower stirring rods 33 will be blocked and limited step by step from top to bottom by the corresponding first limiting mechanism 5, ensuring the stability of the rotation of each stirring rod 33.

[0054] After the L-shaped pressing plate 63 is pressed on the uppermost stirring rod 33, the limit bolt 676 just aligns with the rear limit hole 677. At this time, rotate the limit bolt 676 to move downward, so that the bottom end of the limit bolt 676 is inserted into the rear limit hole 677 to limit the handle 675 and the second gear ring 674, prevent the second gear ring 674 from rotating randomly, and ensure the downward pressure of the pushing rod 672 on the wedge block 641.

[0055] When it is necessary to release the blocking and limiting of the L-shaped pressing plate 63 on the uppermost stirring rod 33, first loosen the limiting bolt 676, and then push the handle 675 to drive the second gear ring 674 to rotate counterclockwise. The second gear ring 674 drives the first gear ring 673 to rotate clockwise. The first gear ring 673 drives the turntable 671 and the pushing rod 672 to rotate clockwise, so that the pushing rod 672 gradually releases the pushing on the inclined surface of the wedge block 641. At this time, the restoring force of the third restoring spring 644 pushes the wedge block 641 to move upward. Then, the wedge block 641 pulls the movable block 62 and the L-shaped pressing plate 63 to move upward through the linkage rod 642. When the L-shaped pressing plate 63 moves upward, it uses the second inclined groove 651 to guide the second sliding rod 652, so that the second sliding rod 652 drives the L-shaped pressing plate 63 to move away from the top of the uppermost stirring rod 33, and the blocking and limiting of the uppermost stirring rod 33 are released.

[0056] Please refer to Figure 1 、 Figure 2 and Figure 9 As shown in FIGS.

[0057] A connecting ring 21 is fixedly connected to the bottom of the tank cover 2 and is located inside the outer ring wall of the tank cover 2. The connecting ring 21 is inserted into the top of the mixing tank 1. A fixing bolt 22 is threadedly connected to the outer ring wall of the tank cover 2. The inner end of the fixing bolt 22 threadedly penetrates to the inside of the connecting ring 21 and is then threadedly connected to the mixing tank 1. A feed port is also opened on the tank cover 2. A positioning block 11 is fixedly connected to the front of the mixing tank 1. A groove matching with the positioning block 11 is opened at the bottom of the tank cover 2. A discharge port is provided at the bottom of the mixing tank 1.

[0058] Please refer to Figures 1 - 9 During the installation of the tank cover 2, align the groove at the bottom of the tank cover 2 with the positioning block 11 to ensure that the turntable 671 can match the corresponding wedge block 641. After covering the tank cover 2 on the mixing tank 1, tighten the fixing bolt 22 to connect the tank cover 2 and the mixing tank 1, and the connecting ring 21 and the fixing bolt 22 are threadedly locked.

[0059] Step 2: During the downward movement of the stirring rod 33, except for the lowermost stirring rod 33, the other stirring rods 33 will first contact the corresponding guiding ring 41 and push the corresponding guiding ring 41 downward. During the downward movement of the guiding ring 41, it will drive the lower first pressing rod 51 to move downward together. When the ejector rod 541 at the bottom of the first pressing rod 51 abuts against the fixed block 545, due to the blockage of the fixed block 545, the ejector rod 541 will be pushed into the first pressing rod 51. The ejector rod 541 will drive the first sliding rod 544 to move together, and use the first sliding rod 544 to push and guide the first inclined groove 543, so that the rotating ring 52 drives the second pressing rod 53 to rotate clockwise. When the lowermost stirring rod 33 presses tightly on the lowermost guiding ring 41, the other stirring rods 33 just push the corresponding guiding rings 41 to move to the bottom of the vertical sliding groove. At this time, the second pressing rod 53 moves to the top of the corresponding stirring rod 33.

[0060] Step 3: When the lowermost stirring rod 33 presses tightly on the lowermost guiding ring 41, the triangular support frame 35 abuts against the inner bottom wall of the mixing tank 1. At this time, the tank cover 2 is closed on the top of the mixing tank 1, and then the fixing bolts 22 are tightened to connect the tank cover 2 and the mixing tank 1.

[0061] Step 4: By pushing the handle 675 to drive the second gear ring 674 to rotate clockwise by a certain angle, the second gear ring 674 drives the first gear ring 673 to rotate counterclockwise. The first gear ring 673 drives the turntable 671 and the pushing rod 672 to rotate counterclockwise, moves the pushing rod 672 to the inclined surface of the corresponding wedge block 641 and pushes the wedge block 641 downward. When the wedge block 641 moves downward, it will push the movable block 62 to move downward together through the linkage rod 642. At this time, the third return spring 644 will be compressed. When the movable block 62 moves downward, it will drive the L-shaped pressing plate 63 to move downward. At this time, use the second inclined groove 651 to guide the second sliding rod 652, so that the second sliding rod 652 and the L-shaped pressing plate 63 slide along the width direction of the movable block 62 during the downward movement, so that the L-shaped pressing plate 63 moves to the top of the uppermost stirring rod 33, and use the L-shaped pressing plate 63 to block and limit the uppermost stirring rod 33.

[0062] Step 5: After the L-shaped pressing plate 63 presses tightly on the uppermost stirring rod 33, the limit bolt 676 just aligns with the rear limit hole 677. At this time, rotate the limit bolt 676 to move downward, so that the bottom end of the limit bolt 676 is inserted into the rear limit hole 677 to limit the handle 675 and the second gear ring 674.

[0063] The present invention also provides a method for stirring automotive metal coatings, which specifically includes the following steps: S1: Open the feed inlet, and add various raw materials of the metal coating from the feed inlet to the mixing tank 1. When feeding, it should be noted that the added raw materials should not exceed the top of the fixed pipe 61 to prevent the raw materials from entering the fixed pipe 61 from above. After the addition is completed, close the feed inlet.

[0064] S2: Drive the outer shaft rod 32 to rotate through the drive motor 7, and then the outer shaft rod 32 drives the stirring rod 33 to rotate to mix and stir various raw materials. When the stirring rod 33 rotates, the guiding ring 41 guides and limits the stirring rod 33 and the limiting block 34 to improve the stability of the stirring rod 33 during rotation.

[0065] S3: After the stirring is completed, open the discharge port at the bottom of the mixing tank 1 to discharge the raw materials.

[0066] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A stirring device for automotive metallic paint, comprising a stirring tank and a tank cover mounted on the top of the stirring tank, characterized in that: The bottom of the tank cover is provided with a stirring mechanism, the inner wall of the stirring tank is provided with a guiding component for guiding the stirring mechanism, and the top of the tank cover is provided with a driving motor for driving the stirring mechanism to rotate; The stirring mechanism comprises an inner shaft fixed to the bottom of the tank cover, an outer shaft is rotated on the outside of the inner shaft through a bearing, a plurality of groups of stirring rods are arranged on the outside of the outer shaft at equal distances from top to bottom, a plurality of stirring rods in the same group are evenly connected to the outer shaft in the circumferential direction, and a limiting block is fixed at the bottom of one end of the stirring rod away from the center of the outer shaft; The guide assembly includes a plurality of guide rings distributed up and down on the inner wall of the mixing tank, a plurality of notches matching with the limit blocks are evenly distributed on the inner side of the guide ring in the circumferential direction, the bottom guide ring is fixed to the mixing tank, the other guide rings are connected to the mixing tank in an upward and downward sliding manner, and a plurality of reset assemblies are evenly distributed on the outer ring wall in the circumferential direction; Except for the bottom guide ring, the bottoms of the other guide rings are uniformly provided with a limiting mechanism 1 for limiting the corresponding stirring rods in the circumferential direction, and the inner wall of the stirring tank is uniformly provided with a limiting mechanism 2 for limiting the top stirring rod in the circumferential direction; The limiting mechanism 1 includes a first pressure rod fixed at the bottom of the corresponding guide ring, a rotating ring is rotatably provided at the bottom of the first pressure rod, a second pressure rod is fixed on the outer ring wall of the rotating ring, a ball is rotatably provided at the bottom of the second pressure rod, a rotating assembly for driving the rotating ring to rotate is provided at the bottom of the first pressure rod, the rotating assembly includes a top rod sliding up and down at the bottom of the first pressure rod, the bottom end of the top rod slides from the center hole of the rotating ring to the bottom of the rotating ring, a return spring 2 is fixed between the top of the top rod and the inner wall of the first pressure rod, a plurality of inclined grooves 1 are uniformly opened in the circumferential direction of the rotating ring, a plurality of sliding rods 1 are uniformly provided in the circumferential direction on the outer ring wall of the top rod, the sliding rod 1 slides in the corresponding inclined groove 1, and a plurality of fixed blocks corresponding to the top rods directly below are fixed on the inner wall of the mixing tank; The second limiting mechanism includes a fixed tube fixed on the inner wall of the mixing tank, the fixed tube and the notch are staggered, a movable block slides up and down inside the fixed tube, an L-shaped pressure plate slides along the width direction of the bottom of the movable block, the horizontal section of the L-shaped pressure plate extends to the top of the corresponding notch away from the vertical section, and a ball rotates at the bottom, a pressing component is provided inside the fixed tube for pushing the movable block to move up and down, a guide component is provided on the inner wall of the fixed tube for guiding the L-shaped pressure plate to slide, a sealing telescopic plate is provided at the bottom of the fixed tube, the vertical section of the L-shaped pressure plate slides through the sealing telescopic plate, and a driving component is provided on the tank cover for driving the pressing component to move up and down.

2. The automotive metallic paint stirring device according to claim 1, characterized in that: The bottom end of the inner shaft extends to the bottom of the outer shaft and is evenly connected to a number of triangular support frames in the circumferential direction. The bottom of the triangular support frame is in conflict with the inner bottom wall of the stirring tank. An oblique support rod is fixed between the top of the stirring rod and the outer ring wall of the outer shaft. The oblique support rod, the outer shaft and the stirring rod form a triangular structure. The upper surfaces of the stirring rod, the triangular support frame and the oblique support rod are all convex arc surfaces.

3. The automotive metallic paint stirring device according to claim 1, characterized in that: The cross-sectional area of ​​the guide ring is a right triangle and the side close to the center is a downwardly inclined slope. The end of the stirring rod away from the center of the outer shaft rod slides with the corresponding slope of the guide ring. The limit block is located below the corresponding guide ring and cooperates with the corresponding notch. The notches on different guide rings gradually become smaller from top to bottom. The length of the stirring rod gradually shortens from top to bottom and its end away from the center of the outer shaft rod is located on the outside of the limit block.

4. The automotive metallic paint stirring device according to claim 1, characterized in that: The reset assembly includes a slider fixed on the outer ring wall of the corresponding guide ring, a vertical slide groove corresponding to the slider is opened on the inner wall of the mixing tank, the slider is installed in the vertical slide groove for sliding up and down, a reset spring 1 is fixed between the top of the slider and the top of the vertical slide groove, and a baffle located on the inner side of the reset spring 1 is also fixed to the top of the slider, the baffle is located at the opening of the vertical slide groove and is connected to the inner wall of the mixing tank for sliding up and down.

5. The automotive metallic paint stirring device according to claim 1, characterized in that: The pressing assembly includes a wedge block which is slidably installed on the top of the fixed tube, and the side of the wedge block close to the center of the mixing tank is a downward inclined surface. A baffle plate located between the wedge block and the movable block is fixed inside the fixed tube, and a linkage rod is fixed to the bottom of the wedge block. The bottom end of the linkage rod slides through the bottom of the baffle plate and is fixed to the top of the movable block. A return spring three which is sleeved on the outside of the linkage rod is fixed to the top of the baffle plate.

6. The automotive metallic paint stirring device according to claim 1, characterized in that: The guide assembly includes two inclined grooves each opened on the inner wall of the fixed tube parallel to the width direction of the movable block. There are two inclined grooves located on the inner wall on the same side of the fixed tube and distributed parallelly up and down. Two sliding rods two distributed up and down are fixed on one side of the vertical section of the L-shaped pressure plate close to the corresponding inclined groove two. The sliding rods two are slidably installed in the corresponding inclined groove two.

7. The automotive metallic paint stirring device according to claim 5, characterized in that: The driving assembly includes a plurality of turntables uniformly installed on the tank cover in the circumferential direction, a pushing rod matching with the wedge block is fixed to the bottom of the turntable after rotating through to the bottom of the tank cover, the axis of the pushing rod does not coincide with the axis of the turntable, a gear ring 1 is coaxially fixed to the top of the turntable, a gear ring 2 coaxial with the inner shaft rod is rotatably installed on the top of the tank cover, a plurality of gear rings 1 are meshed with gear rings 2, a handle is fixed to the outer side of the gear ring 2, a limiting bolt is threadedly connected to the handle, two limiting holes distributed front and back are opened on the top of the tank cover, and the distances between the two limiting holes and the axis of the inner shaft rod are equal, and the limiting bolt is plug-fitted into the limiting hole.

8. A method for stirring automotive metallic coatings, characterized in that: The method is completed by using the automotive metallic paint stirring device as claimed in claim 1, comprising the following steps: S1: Add various raw materials of metal coating into the mixing tank. When adding materials, be careful that the added raw materials cannot exceed the top of the limit mechanism 2 to prevent the raw materials from entering the limit mechanism 2; S2: The outer shaft is driven by a driving motor to rotate, and then the outer shaft drives the stirring rod to rotate to mix and stir various raw materials; S3: After the mixing is completed, open the mixing tank to discharge the raw materials.

Images