阅读说明：本技术 一种用于粉末的扬粉抽吸系统 (A raise whitewashed suction system for powder ) 是由 孟凡国 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种用于粉末的扬粉抽吸系统,包括外壳、内胆、中心轴、惯性架、气芯、高压气腔,内胆转动安装于外壳的底板架之上,且内胆围绕底板架的中心位置的定位件转动,气芯安装于定位件的中心位置,气芯的对接段向下与高压气腔连通；中心轴设置于内胆的中心位置,惯性架套设于中心轴上,惯性架设置有下旋摆,下旋摆的末端均固接扬粉件,中心轴的空心段的侧壁上开设有多个气孔,内胆的底壁在空心段的下端口出开设有同位穿孔,使得气芯的插接段能够插接进入到空心段内连通高压气腔与内胆；当内胆转动时,惯性架与中心轴相对转动,使得扬粉件能够将积存的粉末扬起,并被从气孔内喷出的高压气流裹挟。(The invention discloses a powder pumping suction system for powder, which comprises a shell, an inner container, a central shaft, an inertia frame, an air core and a high-pressure air cavity, wherein the inner container is rotatably arranged on a bottom plate frame of the shell, the inner container rotates around a positioning piece at the central position of the bottom plate frame, the air core is arranged at the central position of the positioning piece, and a butt joint section of the air core is downwards communicated with the high-pressure air cavity; the central shaft is arranged at the central position of the liner, the inertia frame is sleeved on the central shaft, the inertia frame is provided with a lower rotary pendulum, the tail ends of the lower rotary pendulum are fixedly connected with the powder raising piece, the side wall of the hollow section of the central shaft is provided with a plurality of air holes, and the bottom wall of the liner is provided with a homothetic perforation at the lower port of the hollow section, so that the insertion section of the air core can be inserted into the hollow section to be communicated with the high-pressure air cavity and the liner; when the inner bag rotates, the inertia frame and the central shaft rotate relatively, so that the powder-lifting piece can lift the stored powder and is wrapped by high-pressure airflow sprayed out of the air hole.)

1. The powder-raising suction system for the powder is characterized by comprising a shell (1), an inner container (2), a central shaft (4), an inertia frame (5), an air core (6) and a high-pressure air cavity (7), wherein the inner container (2) is rotatably installed on a bottom plate frame (12) of the shell (1), the inner container (2) rotates around a positioning piece (14) in the central position of the bottom plate frame (12), the air core (6) is installed in the central position of the positioning piece (14), and a butt joint section (62) of the air core (6) is communicated with the high-pressure air cavity (7) downwards; the central shaft (4) is arranged at the central position of the inner container (2), the inertia frame (5) is sleeved on the central shaft (4), the inertia frame (5) is provided with a lower rotary pendulum (53), the tail end of the lower rotary pendulum (53) is fixedly connected with a powder raising piece (9), the side wall of the hollow section (42) of the central shaft (4) is provided with a plurality of air holes (43), and the bottom wall of the inner container (2) is provided with a homotopic perforation hole at the lower end opening of the hollow section (42), so that the insertion section (61) of the air core (6) can be inserted into the hollow section (42) to communicate the high-pressure air cavity (7) and the inner container (2); when the inner container (2) rotates, the inertia frame (5) and the central shaft (4) rotate relatively, so that the powder-lifting piece (9) can lift accumulated powder and is wrapped by high-pressure air flow sprayed from the air hole (43).

2. A dusting suction system for powder according to claim 1 characterized in that said bottom plate frame (12) comprises a driving chamber (121) at the outer ring of the edge, a pneumatic chamber (122) placed at the inner ring of the center, said high pressure air chamber (7) is installed in said pneumatic chamber (122); a plurality of driving devices are uniformly arranged in the driving cavity (121), output shafts of the driving devices are erected between the outer ring wall of the bottom plate frame (12) and the ring wall of the shell (1), driving pieces (11) are arranged on the output shafts, and a driving ring (21) is arranged on the bottom wall of the inner container (2) corresponding to the driving pieces (11), so that when the output shafts are synchronously driven by the plurality of driving devices, the inner container (2) can stably rotate around the positioning piece (14); the high-pressure pipe (71) of the high-pressure air cavity (7) penetrates through the base plate frame (12), the shell (1) and the external high-pressure air pipe to be communicated, and the high-pressure pipe (71) and the inner container (2) do not interfere with each other in rotation.

3. A dusting suction system for powder according to claim 2 characterized in that a large ring bearing (22) is arranged between the upper part of the inner container (2) and the outer casing (1) so that the inner container (2) is always coaxial with the outer casing (1) when rotating.

4. The powder raising and sucking system for the powder according to claim 1, wherein an end cover (3) is arranged at an upper end opening of the inner container (2), a sieve plate (23) is arranged inside the upper end of the inner container (2), the sieve plate (23) is arranged between the upper end of the central shaft (4) and an inner annular wall of the upper end of the inner container (2), the end cover (3) covers the sieve plate (23), and the end cover (3) and the central shaft (4) are not interfered with each other; end cover (3) are including shutoff piece (31), apron (32), the diameter of shutoff piece (31) with the internal diameter of inner bag (2) is the same, the diameter of apron (32) is greater than the internal diameter of inner bag (2), the central point of end cover (3) puts and is provided with and runs through the play powder mouth (33) of end cover (3), it is located to go out powder mouth (33) the outside one end of end cover (3) is provided with rotates interface (34).

5. A dusting suction system for powder according to claim 1 characterized in that said co-located perforations comprise a rotating hole at the lower side based on said positioning piece (14) and a perforation at the upper side based on the cavity of said hollow section (42), said rotating hole having the same diameter as said positioning piece (14) so that the bottom wall of said inner container (2) can be just covered on said positioning piece (14); the diameter of the perforation is slightly larger than the diameter of the inner cavity of the hollow section (42), a backing ring (24) is arranged in the perforation, and the backing ring (24) is used for sealing a rotating gap between the bottom wall of the inner container (2) and the positioning piece (14).

6. The powder lifting suction system for powder according to claim 1, wherein a plug-in cavity is formed in the center of the positioning member (14), so that the plug-in section (61) can be plugged into the positioning member (14), a fixing part (15) is arranged on the inner wall of the plug-in cavity, so that the positioning member (14) can be fixed with the gas core (6), and the gas core (6) does not rotate along with the inner container (2); the upper end of the high-pressure air cavity (7) is provided with a butt joint part (73), the butt joint part (73) is arranged under the positioning piece (14), and a valve core hole (72) is formed in the position, corresponding to the butt joint section (62) of the air core (6), of the butt joint part (73) and extending out of the lower end of the positioning piece (14), so that the butt joint section (62) can be in butt joint with the valve core hole (72) and the air core (6) is communicated with the high-pressure air cavity (7); and the valve core hole (72) and the butt joint section (62) are provided with sealing rings (16).

7. A dusting suction system for powder according to claim 1, characterized in that the upper end of the plug section (61) is located higher than the highest air hole (43) in the hollow section (42); the inner diameter of the insertion section (61) is larger than that of the butt-joint section (62), a valve core ball (64) is arranged in an inner cavity of a transition connection position of the insertion section (61) and the butt-joint section (62), a valve core frame (8) is arranged at the upper end of the valve core ball (64), the diameter of the valve core ball (64) is larger than that of the butt-joint section (62), and the diameter of the valve core ball (64) is smaller than that of the insertion section (61); the valve core frame (8) is used for stopping the valve core ball (64) from flying out of the gas core (6) upwards.

8. A dusting suction system for powder according to claim 7, characterized in that said core frame (8) comprises a central plate (81), a fixing ring (82), and support rods (83), a plurality of said support rods (83) are uniformly surrounding said central plate (81) to fix said central plate (81) and said fixing ring (82), said fixing ring (82) is fixed in the inner cavity of said socket section (61), a positioning recess (811) is provided on the side of said central plate (81) facing said core ball (64), so that said core ball (64) can abut and be stabilized in said positioning recess (811) when being flushed by high pressure air; when the valve core ball (64) falls to the inner cavity port of the butt joint section (62), the inner cavity of the butt joint section (62) can be sealed.

9. The dusting suction system for powder according to claim 1, wherein the inertia frame (5) further comprises a collar (51) and a plurality of struts (52), the inertia frame (5) is sleeved on the central shaft (4) through the collar (51), the plurality of struts (52) are uniformly fixed on an outer annular wall of the collar (51) around the central shaft (4), the struts (52) are provided with a plurality of lower rotary swings (53) towards the bottom of the inner container (2), and the rotary offset direction of the lower rotary swings (53) is opposite to the rotary direction of the inner container (2), so that the inertia frame (5) can always float on the powder accumulated in the inner container (2) when the inner container (2) rotates.

10. A dust suction system for powder according to claim 9, characterized in that the whole structure of the dust-raising member (9) is in the shape of tail fin, the dust-raising member (9) is arranged at the end of the lower rotary pendulum (53) along the direction of the lower rotary pendulum (53), and the dust-raising member (9) is in direct contact with the powder stored in the inner container (2); the powder lifting part (9) comprises powder lifting parts (91) and an upward lifting part (92), the two powder lifting parts (91) are symmetrically arranged on two sides of the lower end of the upward lifting part (92) and are offset smoothly and reversely backwards, the upper end of the upward lifting part (92) is fixedly connected with the lower rotary pendulum (53), and the tail end of the powder lifting part (91) is tilted upwards, so that the upper surface of the powder lifting part (91) is inclined downwards in the direction opposite to the rotating direction of the inner container (2); when the inertia frame (5) and the central shaft (4) rotate relatively, the powder lifting piece (9) can lift and lift the powder contacted with the powder lifting part (91), and the lifting part (92) can limit the downward lifting depth of the powder lifting part (91).

Technical Field

The invention relates to the technical field of powder suction, in particular to a powder lifting suction system for powder.

Background

In the process of electrostatic spraying, the principle that high-pressure airflow drives powder is generally adopted to take out and convey the electrostatic powder. When the powder is stored in the powder barrel, the stored powder is only subjected to high-pressure air flow, and during blowing and spraying operation, the driving operation of the fixed air flow on the powder amount is changed along with the change of the residual powder amount, so that the powder conveying amount is unstable, and the spraying effect of the electrostatic powder is influenced.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a powder-lifting suction system for powder, which carries out surface powder-lifting treatment on powder stored in a barrel through the inertia principle, and is beneficial to solidification and stable fixation of the carrying and conveying capacity of airflow; the powder raising amount is not influenced by the accumulated amount of the powder.

The technical scheme for solving the problems is that the invention provides a powder pumping suction system for powder, which comprises a shell, an inner container, a central shaft, an inertia frame, an air core and a high-pressure air cavity, wherein the inner container is rotatably arranged on a bottom plate frame of the shell, the inner container rotates around a positioning piece at the central position of the bottom plate frame, the air core is arranged at the central position of the positioning piece, and a butt joint section of the air core is downwards communicated with the high-pressure air cavity; the central shaft is arranged at the central position of the inner container, the inertia frame is sleeved on the central shaft, the inertia frame is provided with a lower rotary pendulum, the tail ends of the lower rotary pendulum are fixedly connected with the powder raising piece, the side wall of the hollow section of the central shaft is provided with a plurality of air holes, and the bottom wall of the inner container is provided with a homotopic perforation hole at the lower end opening of the hollow section, so that the insertion section of the air core can be inserted into the hollow section to be communicated with the high-pressure air cavity and the inner container; when the inner container rotates, the inertia frame and the central shaft rotate relatively, so that the powder-lifting piece can lift the stored powder and is wrapped by high-pressure airflow sprayed out of the air holes.

Further, the base plate frame comprises a driving cavity positioned on the outer ring of the edge and a pneumatic cavity arranged on the inner ring of the center, and the air cavity is arranged in the pneumatic cavity; a plurality of driving devices are uniformly arranged in the driving cavity, output shafts of the driving devices are erected between the outer ring wall of the bottom plate frame and the ring wall of the shell, driving pieces are arranged on the output shafts, and driving rings are arranged on the bottom wall of the inner container corresponding to the driving pieces, so that when the output shafts are synchronously driven by the plurality of driving devices, the inner container can stably rotate around the positioning piece; the high-pressure pipe of air cavity runs through bottom plate frame, shell and outside high-pressure air pipe intercommunication, the high-pressure pipe with the rotation of inner bag is mutually noninterference.

Furthermore, a large ring bearing is arranged between the upper part of the inner container and the outer shell, so that the inner container and the outer shell are always kept in a coaxial state during rotation.

Furthermore, an end cover is arranged at an upper port of the inner container, a sieve plate is arranged in the upper end of the inner container, the sieve plate is arranged between the upper end of the central shaft and an inner ring wall at the upper end of the inner container, the end cover covers the sieve plate, and the end cover and the central shaft are not interfered with each other; the end cover comprises a plugging piece and a cover plate, the diameter of the plugging piece is the same as the inner diameter of the inner container, the diameter of the cover plate is larger than the inner diameter of the inner container, a powder outlet penetrating through the end cover is formed in the center of the end cover, and a rotating interface is arranged at one end of the outer portion of the end cover.

Furthermore, the apposition perforation comprises a rotating hole positioned at the lower side based on the positioning piece and a perforation positioned at the upper side based on the hollow section inner cavity, and the diameter of the rotating hole is the same as that of the positioning piece, so that the bottom wall of the inner container can be just covered on the positioning piece; the diameter of the through hole is slightly larger than the diameter of the inner cavity of the hollow section, a backing ring is arranged in the through hole and used for sealing a rotating gap between the bottom wall of the inner container and the positioning piece.

Furthermore, a plug-in cavity is formed in the center of the positioning element, so that the plug-in section can be plugged into the positioning element, a fixing part is arranged on the inner wall of the plug-in cavity, so that the positioning element can be fixed with the gas core, and the gas core does not rotate along with the inner container; the upper end of the high-pressure air cavity is provided with a butt joint part, the butt joint part is arranged under the positioning element, and a valve core hole is formed in the position, corresponding to the butt joint section of the air core, of the butt joint part, extending out of the lower end of the positioning element, so that the butt joint section can be in butt joint with the valve core hole, and the air core is communicated with the high-pressure air cavity; and the valve core hole and the butt joint section are provided with sealing rings.

Furthermore, the upper end of the insertion section is higher than the highest air hole of the hollow section; the inner diameter of the insertion section is larger than that of the butt-joint section, a valve core ball is arranged in an inner cavity of a transition connection position of the insertion section and the butt-joint section, a valve core frame is arranged at the upper end of the valve core ball, the diameter of the valve core ball is larger than that of the butt-joint section, and the diameter of the valve core ball is smaller than that of the insertion section; the valve core frame is used for stopping the valve core ball from flying out of the gas core upwards.

Further, the valve core frame comprises a central plate, a fixing ring and a plurality of supporting rods, the central plate and the fixing ring are fixed by the supporting rods uniformly surrounding the central plate, the fixing ring is fixed in an inner cavity of the inserting section, and a positioning recess is formed in one side, facing the valve core ball, of the central plate, so that the valve core ball can be abutted and stabilized into the positioning recess when being flushed by high-pressure airflow; when the valve core ball falls to the inner cavity port of the butt joint section, the inner cavity of the butt joint section can be blocked.

Furthermore, the inertia frame further comprises a sleeve ring and a support rod, the inertia frame is sleeved on the central shaft through the sleeve ring, the support rods are uniformly and fixedly connected to the outer annular wall of the sleeve ring around the central shaft, a plurality of lower rotary pendulums are arranged on the support rods towards the bottom of the inner container, and the rotary offset direction of the lower rotary pendulums is opposite to the rotating direction of the inner container, so that the inertia frame can always float on the powder stored in the inner container when the inner container rotates.

Furthermore, the whole structure of the powder-lifting piece is in a tail fin shape, the powder-lifting piece is arranged at the tail end of the lower rotary pendulum along the direction of the lower rotary pendulum, and the powder-lifting piece is directly contacted with the powder stored in the inner container; the powder lifting piece comprises powder lifting parts and an upper lifting part, the two powder lifting parts are symmetrically arranged on two sides of the lower end of the upper lifting part and are offset backwards and smoothly in a staggered mode, the upper end of the upper lifting part is fixedly connected with the lower rotary pendulum, and the tail end of the powder lifting part is tilted upwards, so that the upper surface of the powder lifting part is inclined downwards in the direction opposite to the rotating direction of the inner container; when the inertia frame and the central shaft relatively rotate, the powder lifting piece can lift and lift the powder contacted with the powder lifting part, and the lifting part can limit the downward lifting depth of the powder lifting part.

The invention has the beneficial effects that:

the invention relates to a powder lifting suction system for powder.A powder barrel is internally provided with an inertia frame which rotates relative to the powder barrel, so that the inertia frame can shovel and lift the powder stored in the barrel, high-pressure airflow has a better wrapping effect on the lifted powder, the content of the powder carried by powder conveying airflow can be stabilized, and the powder can be uniformly sprayed.

The overall structure of the powder-lifting piece is similar to a tail fin shape, the overall structure is inclined and upwards butted to be installed, the tail ends of the tail fins on two sides are contacted with stored powder, the tail ends on two sides are provided with bending structures with powder-shoveling effects, the depth of shoveling powder can be controlled by the whole tail fin while the powder is shoveled, the inertia frame is supported, the tail fins in the jurisdiction of the inertia frame are always located on the upper layer of the powder, and the synchronous rotation effect is not formed by the tail fins and the stored powder.

When the rotating speed of the inner container for storing the powder reaches a certain degree, the friction force between the fin-shaped powder-lifting piece and the powder is not enough to support the inertia frame to rotate synchronously with the powder, the inertia frame rotates relative to the central shaft at the moment, and the powder-lifting piece starts to play a due effect.

A plurality of air holes can be opened in the hollow section of the central shaft, the air holes can be positioned on the upper side of the inertia support and also can be positioned on the lower side of the inertia support, and all-round impact is carried out on powder by a plurality of punching airflow, so that the integral powder content of the powder conveying airflow is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 is a main body view of a dusting suction system for powder according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to an embodiment of the present invention;

fig. 4 is a sectional view of a bottom plate frame of a dusting suction system for powder according to an embodiment of the present invention;

fig. 5 is a structural view of a central shaft of a dusting suction system for powder according to an embodiment of the present invention;

figure 6 is a block diagram of the air core of a dusting suction system for powder according to an embodiment of the present invention;

fig. 7 is a structural view of a valve core frame of a dust pumping system for powder according to an embodiment of the present invention;

fig. 8 is a block diagram of an inertia frame of a dusting suction system for powder according to an embodiment of the present invention;

fig. 9 is a top view of a dusting piece for a dusting suction system for powder in accordance with an embodiment of the present invention;

fig. 10 is a side view of a dusting piece for a dusting suction system for powder in accordance with an embodiment of the present invention.

In the figure: 1. a housing; 2. an inner container; 3. an end cap; 4. a central shaft; 5. an inertial frame; 6. a gas core; 7. a high-pressure air cavity; 8. a valve core frame; 9. a powder raising part; 11. a drive member; 12. a bottom plate frame; 13. a rotating plate; 14. a positioning member; 15. a fixed part; 16. a seal ring; 21. a drive ring; 22. a macrocyclic bearing; 23. a sieve plate; 24. a backing ring; 25. a stop ring; 31. a blocking member; 32. a cover plate; 33. a powder outlet; 34. rotating the interface; 41. a solid section; 42. a hollow section; 43. air holes; 44. a support portion; 51. a collar; 52. a strut; 53. downward swinging; 61. a plug section; 62. a butt joint section; 63. butting the inclined planes; 64. a valve core ball; 71. a high pressure pipe; 72. a spool bore; 73. a docking portion; 81. a center plate; 82. a fixing ring; 83. a support bar; 91. a powder shoveling part; 92. a raising part; 121. a drive chamber; 122. a pneumatic chamber; 811. a positioning recess.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In order to solve the above problems, the present invention provides a powder pumping suction system for powder, please refer to fig. 1-10, which includes a housing 1, a liner 2, a central shaft 4, an inertia frame 5, a gas core 6, and a high pressure gas chamber 7, wherein the liner 2 is rotatably mounted on a bottom plate frame 12 of the housing 1, the liner 2 rotates around a positioning member 14 at the central position of the bottom plate frame 12, the gas core 6 is mounted at the central position of the positioning member 14, and a butt-joint section 62 of the gas core 6 is downwardly communicated with the high pressure gas chamber 7; the central shaft 4 is arranged at the central position of the inner container 2, the inertia frame 5 is sleeved on the central shaft 4, the inertia frame 5 is provided with a lower rotary pendulum 53, the tail ends of the lower rotary pendulum 53 are fixedly connected with the powder raising piece 9, the side wall of the hollow section 42 of the central shaft 4 is provided with a plurality of air holes 43, and the bottom wall of the inner container 2 is provided with a homotopic perforation hole at the lower end opening of the hollow section 42, so that the insertion section 61 of the air core 6 can be inserted into the hollow section 42 to be communicated with the high-pressure air cavity 7 and the inner container 2; when the inner container 2 rotates, the inertia frame 5 and the central shaft 4 rotate relatively, so that the powder-lifting piece 9 can lift the stored powder and is wrapped by the high-pressure airflow sprayed out of the air hole 43.

The inner container 2 is rotatably mounted inside the outer shell 1 and coaxially rotates. The inner container 2 is used for storing up powder, high-pressure airflow input can be carried out at the bottom of the inner container 2, powder and airflow output is carried out at the top of the inner container 2, a central shaft 4 is arranged at the central position of the inner container 2, the central shaft 4 rotates along with the inner container 2, an inertia frame 5 is sleeved on the inner container 2, the outer surface of the central shaft 4 can be processed smoothly, the inertia frame 5 is in sliding connection with the central shaft 4, namely the inertia frame 5 can slide up and down along the axial direction of the central shaft 4 to change the relative height, and the inertia frame 5 can also rotate around the central shaft 4.

It can be understood that, when the rotating speed of the inner container 2 is relatively slow, the inertia frame 5 can rotate synchronously with the inner container 2 under the action of friction force in all aspects. When the rotating speed of the liner 2 is gradually increased, the friction force received by the inertia frame 5 is gradually insufficient to support the rest liners 2 to keep synchronous rotation, and at the moment, the inertia frame 5 and the central shaft 4 generate relative rotation.

In the embodiment of the present invention, the inertia frame 5 includes a collar 51 and struts 52, the inertia frame 5 is sleeved on the central shaft 4 through the collar 51, and the struts 52 are uniformly fixed on the outer annular wall of the collar 51 around the central shaft 4. The plurality of struts 52 can be in a horizontal state relative to the collar 51, so that the basic structure built by the plurality of struts 52 and the collar 51 is in a horizontally divergent state; the device can also be in a raised state, so that the basic structure built by the struts 52 and the lantern ring 51 is in a conical divergent state.

A swing-down part 53 is provided at the lower side of the strut 52, the swing-down part 53 is rotated in the opposite direction to the rotation direction of the liner 2, and if the rotation direction of the liner 2 is clockwise, the swing-down part 53 is arranged as shown in fig. 8. The relative rotation between the inertia frame 5 and the central shaft 4 is supported by the inertia principle, and the height of the inertia frame 5 is determined by the plurality of lower rotary pendulums 53 and the powder-lifting piece 9 arranged at the lower end thereof.

The lower rotary pendulum 53 can be a rigid support rod, the tail end of each lower rotary pendulum 53 is provided with a powder raising part 9, and the powder raising parts 9 are directly contacted with the upper surface of powder stored in the inner container 2.

When the inertia frame 5 is in a static state relative to the central shaft 4, the plurality of powder-lifting pieces 9 jointly support the weight of the inertia frame 5, and part of the structure of the powder-lifting pieces 9 can sink into the powder.

When the inertia frame 5 is in a rotating state relative to the central shaft 4, the weight of the inertia frame 5 is supported by the plurality of powder-lifting pieces 9 and the upward air flow, the upper layer powder stored at the bottom of the inner container 2 continuously collides with the powder-lifting pieces 9, so that the upper layer powder is lifted and lifted by the tail fin tail end bending structure of the powder-lifting pieces 9, and the height of the inertia frame 5 on the central shaft 4 continuously decreases along with the reduction of the residual amount of the stored powder.

It can be understood that under the condition that the airflow is stable, the powder-lifting piece 9 lifts powder, and the supporting effect of the powder-lifting piece 9 group on the inertia frame 5 is gradually moved downwards, and is in clear linear correlation with the residual quantity of the stored powder.

Further, in the embodiment of the present invention, the whole structure of the powder raising member 9 is in the shape of a tail fin, as shown in fig. 8, 9, and 10, a bent structure is provided at two ends of the tail fin to achieve a raising effect when the powder is impacted, and most of the structure of the tail fin is in a raising state, and the striking effect is opposite to that of the bent structure at the end. Therefore, for the whole tail fin-shaped powder-raising piece 9, when the powder-raising piece 9 and the stored powder rotate relatively, the whole force-bearing direction of the powder on the powder-raising piece 9 is upward, so that the powder-raising piece 9 can not be directly inserted into the deep part of the powder.

Specifically, fin-shaped powder raising piece 9 of tail can set up along the trend of lower pendulum 53 when the butt joint for two terminal bending structures of powder raising piece 9 can sink slightly to the upper strata that stores up the powder, produce when relative, can realize the powder raising effect. The tail fin rear end of the powder raising part 9 can be in direct contact with powder, the upward supporting force of the powder raising part 9 is exerted by the powder when the powder raising part 9 rotates relatively, the powder raising part 9 can be located on the upper layer where the powder is stored up all the time, and the lower shoveling depth of the powder shoveling structure is stabilized.

In the embodiment of the invention, the powder-lifting member 9 comprises the powder-shoveling parts 91 and the lifting parts 92, the two powder-shoveling parts 91 are symmetrically arranged on two sides of the lower end of the lifting part 92 and are staggered and deviated backwards to a certain degree, and smooth connection can be performed in the staggered intervals, so that the powder-shoveling effect is optimized. The upper end of the raised part 92 is butted and fixed with the lower swing 53 along the curvature of the lower swing 53. The tail end of the powder shoveling part 91 can be tilted upwards, so that the upper surface of the middle part of the powder shoveling part 91 is inclined downwards to the direction opposite to the rotation direction of the inner container 2, and the effect of shoveling and lifting the collided powder can be realized.

It can be understood that the larger the contact area between the tail fin-shaped powder-lifting piece 9 and the accumulated powder is, the more stable the stressed support of the powder-lifting pieces 9 on the upper layer of the accumulated powder is, and the control of the relative height of the inertia frame 5 is beneficial. Therefore, the fin-shaped basic structure can be expanded, the powder-raising piece 9 under the inertia frame 5 can stably support the inertia frame 5, and the integral structure of the inertia frame 5 is kept to be always floated on the upper layer of the stored powder.

In the embodiment of the present invention, the bottom of the housing 1 is provided with a bottom plate frame 12, a driving space is left between the bottom plate frame 12 and the annular wall of the housing 1, and the bottom plate frame 12 includes two independent chambers, please refer to fig. 1 and fig. 4, that is, a driving cavity 121 located at the outer ring of the edge and a pneumatic cavity 122 located at the inner ring of the center; wherein, a driving device is arranged in the driving cavity 121 for driving the inner container 2 to rotate; a high-pressure air chamber 7 is provided in the pneumatic chamber 122.

A plurality of driving devices can be arranged in the outer ring driving cavity 121 at the same time and are uniformly distributed. The output shaft of the driving device is erected in the driving space between the outer ring wall of the bottom plate frame 12 and the shell 1, the driving part 11 can be arranged on the output shaft, and the driving part 11 can be in contact with the bottom wall of the inner container 2. Further, a driving ring 21 can be arranged on the bottom wall of the liner 2 corresponding to the driving member 11, and the driving ring 21 and the driving member 11 form a butt joint relationship, so that the liner 2 can be driven synchronously by a plurality of driving devices.

It can be understood that when a plurality of driving devices simultaneously drive the driving ring 21 on the bottom wall of the inner container 2, the inner container 2 can rotate around the axis, that is, the inner container 2 rotates around the positioning member 14. In order to ensure the rotation consistency of the upper end and the lower end of the inner container 2, a large ring bearing 22 can be arranged between the upper part of the inner container 2 and the outer shell 1, and the large ring bearing 22 can be fixedly connected with the inner wall of the outer shell 1, so that the inner container 2 can always keep a coaxial state when being combined with the outer shell 1. When the inner container 2 rotates, inertia shaking is not generated at the upper end and the lower end of the inner container.

The high-pressure air chamber 7 arranged in the inner-ring pneumatic chamber 122 can be externally connected with a high-pressure pipe 71, and the high-pressure pipe 71 can penetrate through the bottom plate frame 12 and the shell 1 along the position without the driving device and then is communicated with an external high-pressure air pipe, so that high-pressure air flow can be conveyed into the high-pressure air chamber 7. It will be understood that the high pressure tube 71 interferes complementarily with the rotation of the internal bladder 2.

Based on the above-mentioned driving member 11 and driving ring 21, in a specific embodiment, the driving member 11 can be a gear, the driving ring 21 is an annular fluted plate, and the driving member 11 is engaged with the driving ring 21. Can carry out the meshing optimization to gear, tooth's socket plate according to pivoted function demand, if set up the overall structure of gear into the round platform form, adopt oblique waist as the mating surface, what butt joint tooth's socket plate corresponds sets up the board body slope, and the tooth's socket distributes on the butt joint inclined plane.

In the embodiment of the invention, the central shaft 4 of the inner container 2 is arranged at the central axial line position of the inner container 2, the upper end of the central shaft 4 is fixedly connected with the sieve plate 23, and the lower end of the central shaft 4 is fixedly connected with the bottom wall of the inner container 2. The upper section of the integral structure of the central shaft 4 is a solid section 41, the lower section is a hollow section 42, wherein the inner cavity of the hollow section 42 is a cylindrical cavity, and the side wall of the hollow section 42 is provided with a plurality of air holes 43 which are arranged according to the height. Because the bottom port of the hollow section 42 is fixedly connected with the bottom wall of the inner container 2, a support portion 44 can extend from the bottom end of the hollow section 42, and the support portion 44 can be an annular triangular rib for reinforcing and stabilizing the relative position relationship between the central shaft 4 and the inner container 2.

It will be appreciated that, with respect to the position of the air holes 43 relative to the inertia frame 5, part of the air holes 43 may be located on the upper side of the inertia frame 5 or on the lower side of the inertia frame 5, so that the air flow can entrain the lifted powder. Furthermore, the opening structure of the air holes 43 can be adjusted, so that the air flow sprayed out of the air holes 43 is inclined downwards to form a circular flow in the inner container 2, and the powder is conveniently blown and entrapped.

The bottom wall of the inner container 2 is provided with a homotopic perforation in the inner cavity corresponding to the hollow section 42, so that the hollow section 42 can be communicated with the outside. The co-located perforations may include a rotating hole on the lower side based on the positioning member 14, and a perforation on the upper side based on the inner cavity of the hollow section 42, the perforations and the rotating hole being coaxial based on the thickness of the bottom wall. The diameter of the rotating hole is the same as that of the positioning piece 14, and the bottom wall of the inner container 2 can be just located on the positioning piece 14. The diameter of the through hole is slightly larger than the diameter of the inner cavity of the hollow section 42, and a backing ring 24 is arranged in the through hole, as shown in fig. 3, the backing ring 24 is used for sealing a rotating gap between the bottom wall of the inner container 2 and the positioning member 14, and the phenomena of air leakage and powder backflow are avoided.

Based on the butt joint rotation of inner bag 2 and setting element 14, can set up between the diapire of bottom plate frame 12 and inner bag 2 and fill rotor plate 13, rotor plate 13 can follow inner bag 2 and rotate together synchronous, also can follow and produce relative rotation between bottom plate frame 12 and the inner bag 2. The rotating plate 13 surrounds the outside of the positioning member 14.

In the embodiment of the invention, the positioning piece 14 is fixedly connected and arranged at the central position of the bottom plate frame 12, and the protruding part structure and the inner container 2 are in positioning butt joint and are the rotating shaft center of the inner container 2. The central position of the positioning part 14 is provided with a plug-in cavity for installing the gas core 6. The gas core 6 is divided into an insertion section 61 and a butt-joint section 62, wherein after the upper section of the insertion section 61 is inserted into the inner cavity of the hollow section 42, the lower section of the insertion section 61 is inserted and fixed with the positioning piece 14, so that the gas core 6 and the inner container 2 rotate asynchronously and are only used for supplying high-pressure air flow.

Furthermore, a fixing portion 15 may be provided on an inner wall of the insertion cavity of the positioning member 14 to fix the air core 6, and a depth of fixing the air core 6 is limited. The limit of the butt joint is the butt joint installation effect of the butt joint section 62 and the high-pressure air cavity 7, the length of the butt joint section 62 extending out of the positioning piece 14 determines the butt joint installation effect of the air core 6 and the high-pressure air cavity 7, and the depth of the positioning piece 14 for fixing the air core 6 can ensure that the butt joint sealing effect of the air core 6 and the high-pressure air cavity 7 is good.

For the high-pressure air chamber 7, the upper end of the high-pressure air chamber 7 may be provided with an abutting portion 73 corresponding to the abutting section 62 of the air core 6, and the abutting portion 73 is disposed right below the positioning member 14 and corresponds to the protruding position of the air core 6. The center of the abutting part 73 is provided with a valve core hole 72, and the valve core hole 72 can be abutted and combined with the abutting section 62.

Referring to fig. 3 and 6, the inner diameter of the insertion section 61 is larger than the inner diameter of the docking section 62, and the outer diameter of the insertion section 61 is larger than the outer diameter of the docking section 62. The valve core hole 72 structurally comprises an annular opening and a cylindrical inner cavity, the transition connection position of the butt joint section 62 and the plug section 61 is in butt joint with the annular opening, namely the butt joint inclined surface 63 is in butt joint with the annular opening; the docking section 62 is inserted directly into the cylindrical cavity. Further, a sealing ring 16 can be arranged in the cylindrical inner cavity section of the valve core hole 72 to seal the butt joint installation of the gas core 6 and the high-pressure gas cavity 7.

It can be understood that the distance between the abutting portion 73 and the positioning member 14 is fixed, so that during the installation of the air core 6, the abutting section 62 of the air core 6 can be directly installed in abutting contact with the valve core hole 72 of the abutting portion 73, and the fixing is completed by matching with the fixing portion 15 in the positioning member 14.

The upper port of the insertion section 61 inserted into the hollow section 42 may be higher than the air hole 43 at the highest position of the hollow section 42. In the transitional connection position, based on the change of the structure of the inner cavity, a valve core ball 64 can be arranged in the inner cavity, a valve core frame 8 is arranged on the upper side of the valve core ball 64, and the valve core frame 8 is used for stopping the valve core ball 64 from flying out of the air core 6 upwards. The diameter of the valve core ball 64 is smaller than the inner diameter of the insertion section 61 but larger than the inner diameter of the butt joint section 62, so that when the valve core ball 64 falls to the upper port of the butt joint section 62, the inner cavity of the butt joint section 62 can be blocked, and airflow backflow is avoided; when the valve core ball 64 rises, the valve core ball is stopped by the valve core frame 8, and the air flow can smoothly pass through.

Specifically, the spool frame 8 includes a central plate 81, a fixing ring 82, and support rods 83, the support rods 83 uniformly surround the central plate 81 to fix the central plate 81 and the fixing ring 82, the fixing ring 82 is fixed in the inner cavity of the plug section 61, and a positioning recess 811 is provided on one side of the central plate 81 facing the spool ball 64, so that the spool ball 64 can abut against and be stabilized in the positioning recess 811 when being flushed by high-pressure air; when the valve core ball 64 falls to the inner cavity port of the butt joint section 62, the inner cavity of the butt joint section 62 can be sealed.

When the valve core frame 8 is installed, the valve core frame 8 can be put in from the upper port of the inserting section 61 and pushed downwards to a proper position, and interference installation can be adopted.

In the embodiment of the invention, the upper port of the inner container 2 can be provided with an end cover 3 for covering and sealing the inner container 2. The upper end and the sieve 23 of center pin 4 are fixed, and sieve 23 installs in the upper end of inner bag 2, and sieve 23, center pin 4 all do not all with end cover 3 direct contact, do not influence end cover 3's installation.

The end cap 3 may include a blocking piece 31 and a cover plate 32, the diameter of the blocking piece 31 is the same as the inner diameter of the inner container 2, the diameter of the cover plate 32 is larger than the inner diameter of the inner container 2, and the blocking piece 31 is disposed at the central position of the inner side of the cover plate 32, so that the end cap 3 can block and cover the upper port of the inner container 2. The central position of end cover 3 is provided with a powder outlet 33 that runs through end cover 3, and the one end of powder outlet 33 that is located the outside of end cover 3 is provided with rotation interface 34.

The sieve plate 23 may be an annular plate, and a mounting hole is formed at the center thereof for butt-mounting the central shaft 4. The sieve plate 23 is provided with a large number of through holes for the transport of powder and air flow. The aperture of the through hole is generally larger, so that the air flow and the powder passage are convenient.

The upper part of the sieve plate 23 is the end cover 3, a buffer space is arranged between the end cover 3 and the sieve plate 23, and the powder outlet 33 is used for outputting powder to the outside.

The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the specific embodiments of the invention be limited to these descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.