Anti-accumulation multi-powder stirring device

Abstract

The invention discloses an anti-accumulation multi-powder stirring device. The anti-accumulation multi-powder stirring device comprises a mixing bin, a mixing cylinder, a mixing mechanism, a feeding plate and an opening and closing mechanism, a mixing cover plate is arranged at the top of the mixing bin, a mixing air cylinder is arranged in the center of the top of the mixing cover plate in a penetrating mode, a driving mechanism is installed at the top of the mixing air cylinder, and a mixing inlet is formed in the position, located on the side face of the mixing air cylinder, of the top of the mixing cover plate; a piston rod of the material mixing air cylinder is connected with the top of the material mixing mechanism, a gap groove exists between the bottom of the material mixing mechanism and the top of the feeding plate, semicircular feeding plates which are symmetrically arranged in an attached mode are hinged to the bottom of the material mixing bin, and opening and closing mechanisms are arranged at the positions, corresponding to the feeding plates, of the side face of the bottom of the material mixing bin; the opening and closing mechanism and the feeding plate are arranged in a clamped mode. When the high-viscosity powder is stirred and mixed, the high-viscosity powder is not easy to accumulate.

Description

Technical Field

[0001] This invention relates to an improvement of multi-powder mixing technology, belonging to the field of mixing, and particularly to a multi-powder mixing device that prevents accumulation. Background Technology

[0002] During the mixing process of powder materials, the powder is prone to accumulate on the silo walls and inside the pipes, which not only increases the risk of blockage, but also leads to inaccurate weighing and uneven mixing. These problems are more prominent for high-viscosity powder materials, as their strong adhesion characteristics will further interfere with the metering accuracy and mixing uniformity, ultimately severely dragging down the conveying efficiency of the entire production line.

[0003] Traditional equipment has poor adhesion between the mixing and stirring components and the inner wall of the hopper, which easily creates dead corners during mixing. This makes it easy for powder, especially high-viscosity materials, to adhere to the inner wall of the hopper and the discharge port. Over time, this accumulation can cause serious blockages, requiring frequent manual cleaning, which is very cumbersome.

[0004] Chinese patent application CN201620276664.5, filed on April 2, 2016, discloses a granular material mixing and stirring device. The inner cavity of the shock-absorbing base is equipped with a mixing drum. The top of the mixing drum has a feed inlet, and the bottom of the mixing drum, through the shaft center, has a discharge outlet. A reducer is installed at the center of the top of the mixing drum, and a stirring motor is installed on the top of the reducer. A stirring shaft, penetrating the top of the mixing drum, is connected to the power output end of the stirring motor via a coupling. A connecting rod is inserted into the outer wall of the stirring shaft, and stirring blades are inserted into the outer wall of the connecting rod. The other end of the connecting rod is connected to the outer wall of a vertical scraper. The vertical scraper in this design has an arc-shaped scraper at its bottom, which improves the working efficiency of granular material mixing and stirring and ensures the stability of the granular material mixing and stirring machine. However, it does not solve the problem of easy accumulation when mixing high-viscosity powders.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this patent application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to overcome the problem of easy accumulation when mixing high-viscosity powders in the prior art, and to provide a multi-powder mixing device that prevents accumulation when mixing high-viscosity powders.

[0007] To achieve the above objectives, the technical solution of the present invention is: a multi-powder mixing device for preventing accumulation, the multi-powder mixing device for preventing accumulation includes a mixing bin, a mixing cylinder, a mixing mechanism, a feeding plate and an opening and closing mechanism;

[0008] The top of the mixing hopper is provided with a mixing cover plate, and a mixing cylinder is installed through the center of the top of the mixing cover plate. A drive mechanism is installed on the top of the mixing cylinder, and the top of the mixing cover plate is located on the side of the mixing cylinder and has a mixing inlet.

[0009] The piston rod of the mixing cylinder is connected to the top of the mixing mechanism. There is a gap groove between the bottom of the mixing mechanism and the top of the feeding plate. The bottom of the mixing bin is hinged with symmetrically fitted semi-circular feeding plates. The bottom side of the mixing bin is provided with an opening and closing mechanism corresponding to each feeding plate.

[0010] The opening and closing mechanism is engaged with the feeding plate.

[0011] The mixing mechanism includes a support rod, multiple mixing connecting rods, and multiple mixing plates. The top of the support rod is connected to the piston rod of the mixing cylinder. Multiple mixing connecting rods are evenly spaced at the lower end of the side of the support rod. Each mixing connecting rod is connected to a mixing plate at the end away from the support rod.

[0012] The bottom of the mixing plate has multiple equally spaced serrated grooves, and the bottom of the mixing plate is in contact with the top of the feeding plate.

[0013] The opening and closing mechanism includes an opening and closing cylinder, a movable component, a connecting component, and a locking component;

[0014] The top of the opening and closing cylinder is connected to one end of the movable component, the other end of the movable component is connected to the outer perimeter of the mixing chamber, the piston rod of the opening and closing cylinder is connected to the top of the connecting component, the bottom of the connecting component is movably connected to the locking component, and the side of the locking component is locked to the mixing plate.

[0015] The movable component includes a mixing hinge seat and a mixing connecting rod. The bottom of the mixing hinge seat is connected to the top of the opening and closing cylinder, the top of the mixing hinge seat is connected to one end of the mixing connecting rod, and the other end of the mixing connecting rod is connected to the outer side of the mixing chamber.

[0016] The mixing connecting rod is L-shaped.

[0017] The connecting assembly includes a connecting plate with a connecting groove at the bottom and a connecting shaft inside the groove. The connecting plate and the engaging assembly are movably connected via the connecting shaft.

[0018] The locking assembly includes two upper locking parts, two lower locking parts, and a mixing swing arm. One end of the mixing swing arm is rotatably connected to the connecting plate via a connecting shaft, and the other end of the mixing swing arm is inserted into the side of the feeding plate.

[0019] The top of the mixing swing arm is provided with a support area on the side near the feeding plate, and the side of the feeding plate is embedded in the support area.

[0020] The upper and lower clamps located on the same side of the mixing arm are connected by a clamping shaft.

[0021] The upper clamping component has an upper clamping area at its bottom front end, and the lower clamping component has a lower clamping area at its top front end. The feeding plate is located between the upper clamping area and the lower clamping area.

[0022] The upper clamping member has its end face near the feeding plate abutting against the feeding plate, and the lower clamping member has its end face near the feeding plate inserted into the feeding plate.

[0023] Three locking blocks are provided on the outer side of the feeding plate near the opening and closing mechanism. The three locking blocks are respectively engaged with two lower locking parts and the mixing swing arm.

[0024] A protective cover is provided on the outside of the mixing hopper, and the top of the protective cover is lower than the top of the mixing hopper;

[0025] The bottom of the protective cover is provided with a frustum-shaped auxiliary hopper, and the longitudinal center line of the outlet of the auxiliary hopper coincides with the closed line of the two feeding plates.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. In the multi-powder mixing device for preventing accumulation of the present invention, a mixing cover plate is provided on the top of the hopper, and a mixing cylinder is installed through the center of the top of the mixing cover plate. A driving mechanism is installed on the top of the mixing cylinder. The top of the mixing cover plate is located on the side of the mixing cylinder and has a mixing inlet. The piston rod of the mixing cylinder is connected to the top of the mixing mechanism. There is a gap groove between the bottom of the mixing mechanism and the top of the feeding plate. The bottom of the mixing hopper is hinged with symmetrically fitted semi-circular feeding plates. An opening and closing mechanism is provided on the bottom side of the mixing hopper corresponding to each feeding plate. The opening and closing mechanism and the... The feeding plate is designed with a locking mechanism. During application, powder enters the mixing hopper through the mixing inlet. The mixing cylinder, driven by the drive mechanism, rotates the mixing mechanism, simultaneously causing it to move up and down, thus agitating the powder within the mixing hopper. During mixing, the opening and closing mechanism remains locked to the feeding plate, ensuring a closed and sealed environment. After mixing, the opening and closing mechanism releases the locking mechanism, allowing the feeding plate to open along the bottom of the mixing hopper and discharge the powder. After discharge, the opening and closing mechanism drives the feeding plate to reset and re-lock, preparing for the next round of mixing. The advantages of this design are as follows:

[0028] First, the bottom of the mixing plate is equipped with a gap groove, which generates a shearing and scraping effect on the high-viscosity powder during mixing, preventing adhesion and clumping. The semi-circular feeding plate is hinged to the mixing hopper, and the opening and closing mechanism is tightly engaged with the feeding plate block through the locking component. When closed, there is no gap, no leakage or accumulation. When discharging, the feeding plate opens and closes dynamically, which can actively scrape off the powder adhering to the bottom of the hopper and avoid long-term accumulation and blockage.

[0029] Secondly, the mixing cylinder drives the mixing mechanism to move up and down, and the driving mechanism drives the mixing mechanism to rotate. When the mixing mechanism moves up and down, the bottom of the mixing plate and the top of the feeding plate continuously scrape against each other to remove the powder adhering to the bottom of the bin. When rotating and stirring, the coverage area is wider, which can effectively avoid the powder not being mixed properly in some areas. At the same time, the gap groove can break up the clumps of high-viscosity powder. Meanwhile, the up and down movement can repeatedly stir the powder in the bin, solving the problem of sufficient mixing in the upper layer and residual accumulation in the lower layer.

[0030] Thirdly, the mixing silo, together with the mixing cover plate, forms a closed mixing space, and the mixing inlet is used for directional feeding to avoid powder spillage and loss;

[0031] Fourthly, after mixing is completed, the mixing mechanism moves downward, which can push the powder in the bin to gather at the feeding plate. With the opening of the feeding plate, the powder can be discharged quickly. The inertia of the rotation can drive the powder at the edges and corners to flow, avoiding the powder from being stuck in the bottom corner of the mixing bin and improving the material utilization rate.

[0032] Therefore, the high-viscosity powder of the present invention is not prone to accumulation during mixing.

[0033] 2. In the multi-powder mixing device for preventing accumulation according to the present invention, the mixing mechanism includes a support rod, multiple mixing connecting rods, and multiple mixing plates. The top of the support rod is connected to the piston rod of the mixing cylinder. Multiple mixing connecting rods are evenly spaced at the lower end of the side of the support rod. Each mixing connecting rod is connected to a mixing plate at the end away from the support rod. The bottom of the mixing plate has multiple equally spaced serrated grooves. The bottom of the mixing plate contacts the top of the feeding plate. In application, the combination of the support rod, the equally spaced mixing connecting rods, and the multiple mixing plates achieves full-area mixing coverage inside the mixing hopper, avoiding local powder leakage. The bottom of the mixing plate is in close contact with the top of the feeding plate, which can scrape off the powder adhering to the bottom of the hopper during mixing, eliminating dead corners of powder accumulation. The serrated grooves at the bottom of the mixing plate can shear and break up clumps of high-viscosity powder, while enhancing the powder turning effect and improving the uniformity of multi-powder mixing. Therefore, the present invention has a good mixing effect and improves the uniformity of multi-powder mixing.

[0034] 3. In the multi-powder mixing device for preventing accumulation of the present invention, a connecting groove is provided at the bottom of the connecting plate, and a connecting shaft is provided in the connecting groove. The connecting plate and the locking assembly are movably connected through the connecting shaft. The locking assembly includes two upper locking parts, two lower locking parts, and a mixing swing arm. One end of the mixing swing arm is rotatably connected to the connecting plate through the connecting shaft, and the other end of the mixing swing arm is inserted into the side of the feeding plate. A supporting area is provided on the top of the mixing swing arm near the feeding plate, and the side of the feeding plate is embedded in the supporting area. The upper locking parts and lower locking parts located on the same side of the mixing swing arm are connected through the locking shaft. In application, the upper locking area of ​​the upper locking part and the lower locking area of ​​the lower locking part form a locking mechanism. The upper and lower clamping structure, along with the three locking blocks of the feeding plate, precisely engages with the lower locking component and the mixing swing arm, ensuring a seamless closing of the feeding plate and preventing leakage and accumulation of high-viscosity powder. The L-shaped design of the mixing connecting rod and the hinged structure of the mixing hinge seat, combined with the movable connection of the locking components via the connecting shaft, allow the opening and closing cylinder to drive the feeding plate to open and close smoothly. When opening, the feeding plate dynamically scrapes off powder adhering to the bottom of the hopper, preventing residue accumulation. All components precisely cooperate through hinges, locking, and shaft connections, ensuring stable transmission and preventing loosening of the connection between the opening and closing mechanism and the feeding plate during mixing and discharging. This guarantees continuous and stable operation of the device and avoids accumulation or malfunctions caused by connection problems. Therefore, this invention offers stable connections and convenient opening and closing.

[0035] 4. In the multi-powder mixing device for preventing accumulation of materials according to the present invention, a frustum-shaped auxiliary hopper is provided at the bottom of the protective cover. The longitudinal center line of the outlet of the auxiliary hopper coincides with the closed line of the two feeding plates. During application, the protective cover can prevent powder from splashing during mixing and discharge, avoiding material loss and pollution of the surrounding environment, while protecting the external parts of the equipment and improving operational safety. The precise alignment of the outlet of the frustum-shaped auxiliary hopper with the closed line of the feeding plates can guide the discharged powder to flow in a directional manner, preventing powder from scattering during discharge, further reducing residual accumulation, and improving material collection efficiency. Therefore, the present invention is convenient to collect and has high collection efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention.

[0037] Figure 2 This is a cross-sectional view of the present invention.

[0038] Figure 3 This is a bottom view of the present invention.

[0039] Figure 4 This is a schematic diagram of the mixing mechanism in this invention.

[0040] Figure 5 This is a schematic diagram showing the connection between the opening and closing mechanism and the feeding plate in this invention.

[0041] Figure 6 In this invention Figure 5A sectional view.

[0042] Figure 7 This is a schematic diagram of the feeding plate in this invention.

[0043] Figure 8 This is a schematic diagram of the opening and closing mechanism in this invention.

[0044] Figure 9 This is a schematic diagram of the connecting component in this invention.

[0045] Figure 10 This is a schematic diagram of the mixing swing arm in this invention.

[0046] In the diagram: 13 mixing bin, 14 mixing cover, 141 mixing inlet, 15 mixing mechanism, 15 support rod, 152 mixing connecting rod, 153 mixing plate, 154 serrated groove, 16 mixing cylinder, 17 feeding plate, 18 opening and closing mechanism, 181 opening and closing cylinder, 182 moving component, 1821 mixing hinge seat, 1822 mixing connecting rod, 183 connecting component, 1831 connecting plate, 1832 connecting groove, 1833 connecting shaft, 184 engaging component, 1841 upper engaging component, 1842 lower engaging component, 1843 mixing swing arm, 1844 upper engaging area, 1845 engaging shaft, 1846 supporting area, 1847 lower engaging area. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] See Figures 1 to 10 A multi-powder mixing device for preventing accumulation, the multi-powder mixing device for preventing accumulation includes a mixing bin 13, a mixing cylinder 16, a mixing mechanism 15, a feeding plate 17 and an opening and closing mechanism 18.

[0049] The top of the mixing hopper 13 is provided with a mixing cover plate 14, and a mixing cylinder 16 is provided through the center of the top of the mixing cover plate 14. A driving mechanism is installed on the top of the mixing cylinder 16, and the top of the mixing cover plate 14 is located on the side of the mixing cylinder 16 and has a mixing inlet 141.

[0050] The piston rod of the mixing cylinder 16 is connected to the top of the mixing mechanism 15. There is a gap groove between the bottom of the mixing mechanism 15 and the top of the feeding plate 17. The bottom of the mixing bin 13 is hinged with a symmetrically fitted semi-circular feeding plate 17. The bottom side of the mixing bin 13 is provided with an opening and closing mechanism 18 corresponding to each feeding plate 17.

[0051] The opening and closing mechanism 18 is engaged with the feeding plate 17.

[0052] The mixing mechanism 15 includes a support rod 151, a plurality of mixing connecting rods 152 and a plurality of mixing plates 153. The top of the support rod 151 is connected to the piston rod of the mixing cylinder 16. A plurality of mixing connecting rods 152 are evenly arranged at the lower end of the side of the support rod 151. Each mixing connecting rod 152 is connected to a mixing plate 153 at the end away from the support rod 151.

[0053] The bottom of the mixing plate 153 is provided with a plurality of equally spaced sawtooth grooves 154, and the bottom of the mixing plate 153 is in contact with the top of the feeding plate 17.

[0054] The opening and closing mechanism 18 includes an opening and closing cylinder 181, a movable component 182, a connecting component 183, and a locking component 184;

[0055] The top of the opening and closing cylinder 181 is connected to one end of the movable component 182, and the other end of the movable component 182 is connected to the outer side of the mixing chamber 13. The piston rod of the opening and closing cylinder 181 is connected to the top of the connecting component 183, the bottom of the connecting component 183 is movably connected to the locking component 184, and the side of the locking component 184 is locked to the mixing plate 153.

[0056] The movable component 182 includes a mixing hinge seat 1821 and a mixing connecting rod 1822. The bottom of the mixing hinge seat 1821 is connected to the top of the opening and closing cylinder 181, the top of the mixing hinge seat 1821 is connected to one end of the mixing connecting rod 1822, and the other end of the mixing connecting rod 1822 is connected to the outer perimeter of the mixing chamber 13.

[0057] The mixing connecting rod 1822 is L-shaped.

[0058] The connecting component 183 includes a connecting plate 1831, a connecting groove 1832 is provided at the bottom of the connecting plate 1831, a connecting shaft 1833 is provided in the connecting groove 1832, and the connecting plate 1831 and the engaging component 184 are movably connected through the connecting shaft 1833.

[0059] The locking assembly 184 includes two upper locking parts 1841, two lower locking parts 1842 and a mixing swing arm 1843. One end of the mixing swing arm 1843 is rotatably connected to the connecting plate 1831 through a connecting shaft 1833, and the other end of the mixing swing arm 1843 is inserted into the side of the feeding plate 17.

[0060] The top of the mixing swing arm 1843 is provided with a support area 1846 on the side near the feeding plate 17, and the side of the feeding plate 17 is embedded in the support area 1846.

[0061] The upper clamp 1841 and the lower clamp 1842, located on the same side of the mixing swing arm 1843, are connected by a clamping shaft 1845.

[0062] The upper clamping member 1841 has an upper clamping area 1844 at its bottom front end, and the lower clamping member 1842 has a lower clamping area 1847 at its top front end. The feeding plate 17 is disposed between the upper clamping area 1844 and the lower clamping area 1847.

[0063] The upper clamp 1841 abuts against the feeding plate 17 at its end face near the feeding plate 17, and the lower clamp 1842 is inserted into the feeding plate 17 at its end face near the feeding plate 17.

[0064] Three locking blocks 171 are provided on the outer side of the feeding plate 17 near the opening and closing mechanism 18. The three locking blocks 171 are respectively engaged with two lower locking parts 1842 and the mixing swing arm 1843.

[0065] A protective cover 19 is provided on the outside of the mixing hopper 13, and the top of the protective cover 19 is lower than the top of the mixing hopper 13.

[0066] The bottom of the protective cover 19 is provided with a frustum-shaped auxiliary hopper 191, and the longitudinal center line of the outlet of the auxiliary hopper 191 coincides with the closed line of the two feeding plates 17.

[0067] The supplementary technical features of this design are as follows:

[0068] The drive mechanism and mixing cylinder 16 are activated. The mixing cylinder 16 drives the mixing mechanism 15 to reciprocate up and down, while the drive mechanism drives the mixing mechanism 15 to rotate. In the mixing mechanism 15, the support rod 151 drives multiple mixing plates 153 through the equally spaced mixing connecting rods 152, achieving full-area mixing of the mixing bin 13. The bottom of the mixing plate 153 continuously contacts and scrapes the top of the feeding plate 17 to remove powder adhering to the bottom of the bin. The serrated groove 154 shears and breaks up high-viscosity powder clumps, and the gap groove enhances the powder turning effect. After mixing is completed, the opening and closing cylinder 181 is activated, and through the moving component 182 and the connecting component 183, the locking component 1 is driven. 84 releases the engagement with the feeding plate 17 and the locking block 171; the feeding plate 17 opens along the bottom hinge of the mixing hopper 13, and the mixing mechanism 15 moves downward to push the powder in the hopper to gather at the feeding plate 17. The rotational inertia drives the powder at the edges to flow, achieving rapid discharge; the protective cover 19 blocks the powder from splashing, and the frustum-shaped auxiliary hopper 191 guides the powder to be discharged in a directional manner to avoid scattering. After the discharge is completed, the opening and closing cylinder 181 is driven in the reverse direction, and the feeding plate 17 is reset and closed through the linkage of various components. The locking component 184 is re-engaged and fixed with the locking block 171; the mixing mechanism 15 is reset to the initial position under the action of the mixing cylinder 16, ready for the next round of feeding and mixing.

[0069] Example 1:

[0070] A multi-powder mixing device for preventing accumulation includes a mixing hopper 13, a mixing cylinder 16, a mixing mechanism 15, a feeding plate 17, and an opening and closing mechanism 18. A mixing cover plate 14 is provided on the top of the mixing hopper 13. The mixing cylinder 16 is penetrated through the center of the top of the mixing cover plate 14. A drive mechanism is installed on the top of the mixing cylinder 16. A mixing inlet 141 is opened on the side of the mixing cover plate 14 located on the side of the mixing cylinder 16. The piston rod of the mixing cylinder 16 is connected to the top of the mixing mechanism 15. A gap groove exists between the bottom of the mixing mechanism 15 and the top of the feeding plate 17. Symmetrically fitted semi-circular feeding plates 17 are hinged to the bottom of the mixing hopper 13. An opening and closing mechanism 18 is provided on the bottom side of the mixing hopper 13 corresponding to each feeding plate 17. The opening and closing mechanism 18 is engaged with the feeding plate 17.

[0071] In application: Powder enters the mixing chamber 13 through the mixing inlet 141. The mixing cylinder 16 drives the mixing mechanism 15 to rotate under the action of the driving mechanism. At the same time, the mixing cylinder 16 can also drive the mixing mechanism 15 to move up and down, stirring the powder in the mixing chamber 13. During the stirring process, the opening and closing mechanism 18 and the feeding plate 17 remain engaged to ensure that the feeding plate 17 is closed and sealed. After the stirring is completed, the opening and closing mechanism 18 releases the engagement with the feeding plate 17, and the feeding plate 17 opens along the bottom of the mixing chamber 13, and the powder is discharged. After the discharge is completed, the opening and closing mechanism 18 drives the feeding plate 17 to reset and re-engage, preparing for the next round of mixing.

[0072] Example 2:

[0073] Example 2 is basically the same as Example 1, except that:

[0074] The mixing mechanism 15 includes a support rod 151, a plurality of mixing connecting rods 152 and a plurality of mixing plates 153. The top of the support rod 151 is connected to the piston rod of the mixing cylinder 16. A plurality of mixing connecting rods 152 are evenly spaced on the lower side of the support rod 151. Each mixing connecting rod 152 is connected to a mixing plate 153 at the end away from the support rod 151. A plurality of equally spaced serrated grooves 154 are opened on the bottom of the mixing plate 153. The bottom of the mixing plate 153 is in contact with the top of the feeding plate 17.

[0075] In application: The piston rod of the mixing cylinder 16 drives the support rod 151, simultaneously realizing the up-and-down reciprocating motion and the rotational motion driven by the drive mechanism. The support rod 151, through the equally spaced mixing connecting rods 152, drives multiple mixing plates 153 to cover the entire mixing chamber, avoiding dead corners in the mixing. The bottom of the mixing plate 153 is in continuous contact with the top of the feeding plate 17. When moving up and down, it scrapes off the powder adhering to the bottom of the chamber. When rotating, it shears and breaks up high-viscosity powder clumps through the sawtooth groove 154, while enhancing the powder turning effect and solving the problem of uneven mixing. The distributed layout of multiple mixing plates 153, combined with the turbulence effect of the sawtooth groove 154, allows different powders to quickly interweave and mix, and reduces powder adhesion and accumulation throughout the process, eliminating the need for frequent manual cleaning.

[0076] Example 3:

[0077] Example 3 is basically the same as Example 1, except that:

[0078] The opening and closing mechanism 18 includes an opening and closing cylinder 181, a movable component 182, a connecting component 183, and a locking component 184. The top of the opening and closing cylinder 181 is connected to one end of the movable component 182, and the other end of the movable component 182 is connected to the outer perimeter of the mixing chamber 13. The piston rod of the opening and closing cylinder 181 is connected to the top of the connecting component 183, the bottom of the connecting component 183 is movably connected to the locking component 184, and the side of the locking component 184 is locked to the mixing plate 153.

[0079] In application: The opening / closing cylinder 181 remains in the retracted state, fixed in position by the movable component 182. The connecting component 183 drives the locking component 184 to tightly engage with the feeding plate 17, ensuring the feeding plate 17 is closed and sealed to prevent powder leakage and accumulation. At the same time, the locking component 184 engages with the mixing plate 153, so that when the mixing plate 153 rotates and moves up and down, it can drive the locking component 184 to slightly move, indirectly scraping off the powder adhering to the edge of the feeding plate 17. After mixing is completed, the opening / closing cylinder 181 starts to extend, pushing the connecting component 183 downward. The connecting component 183 carries... The movable locking component 184 releases its engagement with the feeding plate 17; the movable component 182 adapts to the movement trajectory of the opening and closing cylinder 181 through a hinge structure to ensure smooth transmission, allowing the feeding plate 17 to open smoothly along the hinge at the bottom of the mixing hopper 13, and to quickly discharge material in conjunction with the pushing action of the mixing mechanism 15. After the material discharge is completed, the opening and closing cylinder 181 retracts in the opposite direction, and through the linkage of each component, the locking component 184 is driven to re-engage and fix with the feeding plate 17, and the feeding plate 17 closes and resets, preparing for the next round of mixing. The entire process ensures stable opening and closing of the feeding plate and eliminates the risk of powder residue accumulation.

[0080] Example 4:

[0081] Example 4 is basically the same as Example 1, except that:

[0082] The movable component 182 includes a mixing hinge seat 1821 and a mixing connecting rod 1822. The bottom of the mixing hinge seat 1821 is connected to the top of the opening and closing cylinder 181, and the top of the mixing hinge seat 1821 is connected to one end of the mixing connecting rod 1822. The other end of the mixing connecting rod 1822 is connected to the outer perimeter of the mixing chamber 13. The mixing connecting rod 1822 is L-shaped. The connecting component 183 includes a connecting plate 1831. A connecting groove 1832 is provided at the bottom, and a connecting shaft 1833 is provided in the connecting groove 1832. The connecting plate 1831 and the engaging assembly 184 are movably connected through the connecting shaft 1833. The engaging assembly 184 includes two upper engaging parts 1841, two lower engaging parts 1842, and a mixing swing arm 1843. One end of the mixing swing arm 1843 is rotatably connected to the connecting plate 1831 through the connecting shaft 1833, and the other end of the mixing swing arm 1843 is connected to the feeding device. The side of the feeding plate 17 is inserted into the mixing swing arm 1843. A support area 1846 is provided on the top side of the mixing swing arm 1843 near the feeding plate 17, and the side of the feeding plate 17 is embedded in the support area 1846. An upper clamping member 1841 and a lower clamping member 1842 located on the same side of the mixing swing arm 1843 are connected by a clamping shaft 1845. An upper clamping area 1844 is provided at the bottom front end of the upper clamping member 1841, and a lower clamping area 1842 is provided at the top front end of the lower clamping member 1842. In section 1847, the feeding plate 17 is disposed between the upper locking area 1844 and the lower locking area 1847; the end face of the upper locking member 1841 near the feeding plate 17 abuts against the feeding plate 17, and the end face of the lower locking member 1842 near the feeding plate 17 is inserted into the feeding plate 17; three locking blocks 171 are provided on the outer side of the feeding plate 17 near the opening and closing mechanism 18, and the three locking blocks 171 are respectively locked with the two lower locking members 1842 and the mixing swing arm 1843.

[0083] In application: the opening / closing cylinder 181 remains in its initial retracted state; the mixing hinge seat 1821 is hinged and fixed to the outer perimeter of the mixing chamber 13 via the L-shaped mixing connecting rod 1822, providing stable support and a fulcrum for the opening / closing cylinder 181; the connecting plate 1831 drives the locking assembly 184 to tightly fit against the feeding plate 17 via the connecting shaft 1833; the upper locking area 1844 of the upper locking member 1841 and the lower locking area 1847 of the lower locking member 1842 form an upper and lower clamping structure, locking the feeding plate 17 in the middle; the supporting area 1846 of the mixing swing arm 1843 is embedded in the side of the feeding plate 17, while the feeding plate 17... Three locking blocks 171 are precisely engaged with two lower locking parts 1842 and the mixing swing arm 1843 respectively. The end face of the lower locking part 1842 is inserted into the feeding plate 17, and the end face of the upper locking part 1841 abuts against the feeding plate 17, realizing multi-directional fixation of the feeding plate 17, ensuring a seamless seal at the bottom of the silo, and preventing powder leakage and accumulation at the connection point during mixing. After mixing is completed, the opening and closing cylinder 181 starts to extend, and the piston rod pushes the connecting assembly 183 downward. The mixing hinge seat 1821 swings adaptively around the hinge point of the mixing connecting rod 1822, providing buffer and trajectory guidance for the extension and retraction movement of the opening and closing cylinder 181, avoiding hard transmission. The components are stuck; the connecting plate 1831 drives the locking assembly 184 to move downward and outward synchronously through the connecting shaft 1833. The connecting shaft 1833 allows the locking assembly 184 to rotate adaptably, ensuring smooth unlocking action with the feeding plate 17; when the locking assembly 184 moves with the connecting assembly 183, it first releases the locking block 171 of the feeding plate 17, and then disengages from the clamping and supporting area 1846 of the upper and lower locking areas, realizing the unobstructed unlocking of the feeding plate 17. The feeding plate 17 can open naturally along the bottom hinge of the mixing chamber 13, and cooperate with the mixing mechanism to achieve rapid material discharge. After the material discharge is completed, the opening and closing cylinder 181 is opened and closed. Reverse contraction causes the piston rod to pull the connecting assembly 183 upward and inward to reset. The mixing hinge seat 1821 swings again around the hinge point of the mixing connecting rod 1822, driving the locking assembly 184 to precisely return to the outside of the feeding plate 17. The supporting area 1846 of the mixing swing arm 1843 is re-embedded on the side of the feeding plate 17, and the upper and lower locking areas clamp the feeding plate 17 again. The three locking blocks 171 are re-locked with the lower locking piece 1842 and the mixing swing arm 1843. The end face of the lower locking piece 1842 is inserted into the feeding plate 17 again, completing the multi-directional re-locking of the feeding plate 17, restoring the bottom sealing state of the silo, and preparing for the next round of mixing.

[0084] Example 5:

[0085] Example 5 is basically the same as Example 1, except that:

[0086] A protective cover 19 is provided on the outside of the mixing hopper 13, and the top of the protective cover 19 is lower than the top of the mixing hopper 13; a frustum-shaped auxiliary hopper 191 is provided at the bottom of the protective cover 19, and the longitudinal center line of the outlet of the auxiliary hopper 191 coincides with the closed line of the two feeding plates 17.

[0087] In application: The protective cover 19 can block the splashing of powder during mixing and discharge, avoiding material loss and pollution of the surrounding environment, while protecting the external parts of the equipment and improving operational safety; the outlet of the frustum-shaped auxiliary hopper 191 is precisely aligned with the closed line of the feeding plate 17, which can guide the discharge powder to flow in a directional manner, avoid the powder from scattering during discharge, further reduce residual accumulation, and improve material collection efficiency.

[0088] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A multi-powder mixing device for preventing accumulation, characterized in that: The anti-accumulation multi-powder mixing device includes a mixing hopper (13), a mixing cylinder (16), a mixing mechanism (15), a feeding plate (17), and an opening and closing mechanism (18). The mixing hopper (13) is provided with a mixing cover plate (14) at the top. A mixing cylinder (16) is provided through the center of the top of the mixing cover plate (14). A driving mechanism is installed on the top of the mixing cylinder (16). The top of the mixing cover plate (14) is located on the side of the mixing cylinder (16) and has a mixing inlet (141). The piston rod of the mixing cylinder (16) is connected to the top of the mixing mechanism (15). There is a gap groove between the bottom of the mixing mechanism (15) and the top of the feeding plate (17). The bottom of the mixing bin (13) is hinged with a symmetrically fitted semi-circular feeding plate (17). The bottom side of the mixing bin (13) is provided with an opening and closing mechanism (18) corresponding to each feeding plate (17). The opening and closing mechanism (18) is engaged with the feeding plate (17).

2. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The mixing mechanism (15) includes a support rod (151), multiple mixing connecting rods (152) and multiple mixing plates (153). The top of the support rod (151) is connected to the piston rod of the mixing cylinder (16). Multiple mixing connecting rods (152) are evenly arranged at the lower end of the side of the support rod (151). Each mixing connecting rod (152) is connected to a mixing plate (153) at the end away from the support rod (151).

3. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The bottom of the mixing plate (153) is provided with a plurality of equally spaced sawtooth grooves (154), and the bottom of the mixing plate (153) is in contact with the top of the feeding plate (17).

4. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The opening and closing mechanism (18) includes an opening and closing cylinder (181), a moving component (182), a connecting component (183), and a locking component (184). The top of the opening and closing cylinder (181) is connected to one end of the movable component (182), the other end of the movable component (182) is connected to the outer side of the mixing chamber (13), the piston rod of the opening and closing cylinder (181) is connected to the top of the connecting component (183), the bottom of the connecting component (183) is movably connected to the locking component (184), and the side of the locking component (184) is locked to the mixing plate (153).

5. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The active component (182) includes a mixing hinge seat (1821) and a mixing connecting rod (1822). The bottom of the mixing hinge seat (1821) is connected to the top of the opening and closing cylinder (181), the top of the mixing hinge seat (1821) is connected to one end of the mixing connecting rod (1822), and the other end of the mixing connecting rod (1822) is connected to the outer perimeter of the mixing chamber (13). The mixing linkage (1822) is L-shaped.

6. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The connecting component (183) includes a connecting plate (1831), a connecting groove (1832) is provided at the bottom of the connecting plate (1831), a connecting shaft (1833) is provided in the connecting groove (1832), and the connecting plate (1831) and the engaging component (184) are movably connected through the connecting shaft (1833).

7. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The locking assembly (184) includes two upper locking parts (1841), two lower locking parts (1842) and a mixing swing arm (1843). One end of the mixing swing arm (1843) is rotatably connected to the connecting plate (1831) through a connecting shaft (1833), and the other end of the mixing swing arm (1843) is inserted into the side of the feeding plate (17). The top of the mixing swing arm (1843) is provided with a support area (1846) on the side near the feeding plate (17), and the side of the feeding plate (17) is embedded in the support area (1846). The upper clamp (1841) and the lower clamp (1842) located on the same side of the mixing swing arm (1843) are connected by a clamping shaft (1845).

8. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: The upper clamping part (1841) has an upper clamping area (1844) at the bottom front end, and the lower clamping part (1842) has a lower clamping area (1847) at the top front end. The feeding plate (17) is disposed between the upper clamping area (1844) and the lower clamping area (1847). The upper clamp (1841) abuts against the feeding plate (17) at the end face near the feeding plate (17), and the lower clamp (1842) inserts into the feeding plate (17) at the end face near the feeding plate (17).

9. The multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: Three locking blocks (171) are provided on the outer side of the feeding plate (17) near the opening and closing mechanism (18). The three locking blocks (171) are respectively engaged with two lower locking parts (1842) and the mixing swing arm (1843).

10. A multi-powder mixing device for preventing accumulation according to claim 1, characterized in that: A protective cover (19) is provided on the outside of the mixing hopper (13), and the top of the protective cover (19) is lower than the top of the mixing hopper (13); The bottom of the protective cover (19) is provided with a frustum-shaped auxiliary hopper (191), and the longitudinal center line of the outlet of the auxiliary hopper (191) coincides with the closed line of the two feeding plates (17).

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