A blocking type rotary feeding structure and a feeding device with the same

Abstract

The application relates to a feeding structure, in particular to a block-type rotary feeding structure and a feeding device with the same. The block-type rotary feeding structure comprises a hopper with a tapered part; a feeding seat connected with the tapered part of the hopper and communicating with the inside of the hopper, the inside of the feeding seat is formed with a through channel, opposite side walls of the through channel are formed with symmetrically arranged arc-shaped grooves, so that a cylindrical space is formed in the through channel; a rotary ladle rotatably connected with the feeding seat and arranged in the cylindrical space; and a driving member connected and installed on the feeding seat, the driving member is used for driving the rotary ladle to rotate, and the through channel is always in a blocked state. The application is novel in design, axial rotation is used for feeding instead of traditional auger feeding, material blocking can be effectively prevented, and open fire in a furnace can be effectively blocked to the hopper, so that the safety hidden danger of fire in the hopper is eliminated.

Description

Technical Field

[0001] This invention relates to a feeding structure, specifically a blocking rotary feeding structure and a feeding device having the same structure. Background Technology

[0002] Biomass pellets are widely used due to their advantages such as high combustion heat, high combustion purity, cleanliness and hygiene, and very little combustion ash. During the combustion process, the combustion furnace needs to be continuously fed. Existing combustion furnaces mainly connect the feed cylinder and the combustion furnace at both ends of the feeding pipe. A screw feeding mechanism is set in the feeding pipe, and the feeding is achieved by the rotation of the motor. This feeding method can achieve continuous feeding.

[0003] However, since the feeding pipe is directly connected to the combustion chamber and the feed cylinder respectively, although some spiral auger feeding devices have a baffle structure at the discharge port, the baffle structure cannot be kept in a blocked state continuously. Especially during the biomass pellet conveying process, it will open under the action of extrusion pressure. At this time, it is easy for the fuel in the feeding pipe to be ignited when the combustion chamber is fully burning, causing backfire, which in turn ignites the fuel in the feed cylinder, making the combustion furnace unable to continue to work, which is not conducive to safe production. Summary of the Invention

[0004] The purpose of this invention is to provide a blocking rotary feeding structure and a feeding device having the same structure, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A blocking rotary feeding structure includes:

[0007] The hopper has a conical section.

[0008] The feeding seat is connected to the conical part of the hopper and communicates with the inner side. A through channel is formed on the inner side. The two opposite side walls of the through channel are formed with symmetrically arranged arc-shaped grooves so that a cylindrical space is formed in the through channel.

[0009] A rotating scoop, rotatably connected to the feeding seat and placed within the cylindrical space, is connected to a driving component mounted on the feeding seat. The driving component is used to drive the rotating scoop to rotate, and the through channel is always in a blocked state.

[0010] As described above, the blocking rotary feeding structure has a feeding pipe installed at the end of the feeding seat away from the hopper. The feeding pipe has a vertical section and an inclined section, and the included angle between the vertical section and the inclined section is 135°.

[0011] An air inlet pipe communicating with the inner side is provided on the vertical section of the feeding pipe.

[0012] As described above, the blocking rotary feeding structure has the following characteristics: the cylindrical space forms a collection port and a discharge port at both ends inside the feeding seat along the feeding direction, and a collection notch is formed on the rotating scoop along the tangential direction. The passage area of ​​the collection notch is greater than or equal to the passage area of ​​the collection port and the discharge port, and the arc of the collection notch is less than or equal to 90°.

[0013] The aforementioned blocking rotary feeding structure includes a volume control mechanism on the inner side of the rotating scoop for changing the inner storage volume of the rotating scoop. The volume control mechanism comprises:

[0014] A fixed shaft is fixed inside the rotating scoop, and the axis of the fixed shaft is collinear with the axis of the rotating scoop.

[0015] Two baffle assemblies are rotatably connected to the fixed shaft and symmetrically arranged. The end of the baffle assembly away from the fixed shaft abuts against the inner wall of the rotating spoon and can slide relative to the inner wall of the rotating spoon.

[0016] An adjusting member connected to the two baffle assemblies is used to change the included angle between the two baffle assemblies.

[0017] The aforementioned blocking rotary feeding structure includes the following adjusting component:

[0018] A threaded rod rotatably mounted on the rotating scoop and arranged radially thereon;

[0019] A sliding block is threadedly connected to the threaded rod, and the sliding block slides in contact with the outer wall of the rotating scoop.

[0020] It also includes a winding shaft, which is placed inside the rotating scoop. One end of the winding shaft passes through a strip-shaped groove formed on the rotating scoop and is rotatably connected to the sliding block. The other end is rotatably mounted on a movable block that is slidably engaged with the rotating scoop.

[0021] A sleeve is fitted onto the unwinding shaft and rotatably connected to the unwinding shaft. The sleeve is hinged to the two baffle assemblies via two sets of connecting rods.

[0022] The aforementioned blocking rotary feeding structure includes: the baffle assembly comprising:

[0023] The first baffle is rotatably mounted on a fixed shaft and has an embedded position on the side facing the aggregate notch;

[0024] A second baffle, which is rotatably connected to the first baffle via a connecting shaft, is placed within the embedded position. The thickness of the second baffle is the same as the depth of the embedded position. The end of the second baffle away from the connecting shaft abuts against the inner wall of the rotating scoop and can slide relative to the inner wall.

[0025] As described above, the blocking rotary feeding structure has two connecting shafts on the two baffle assemblies that pass through the arc-shaped slots formed on the rotating scoop, extend out of the inner side of the rotating scoop, and are rotatably connected by a transmission component. The two connecting shafts rotate in opposite directions.

[0026] The transmission component is adapted to a trigger component that is detachably mounted on the feed seat.

[0027] The blocking rotary feeding structure described above includes the following transmission components:

[0028] An arc-shaped sliding plate that slides on the rotating hopper to seal the arc-shaped through groove, and a connecting shaft that passes through the arc-shaped sliding plate and is rotatably connected to the arc-shaped sliding plate;

[0029] The first gear and the third gear are respectively fixed coaxially with the two connecting shafts;

[0030] A second gear, rotatably mounted on one of the arc-shaped sliders and meshing with the third gear, and the shafts of the first gear, the second gear, and the guide wheel rotatably mounted on the slider rotate synchronously via a transmission belt.

[0031] The blocking rotary feeding structure described above includes the following trigger element:

[0032] A ring-shaped mounting bracket is rotatably mounted on the feeding seat. The ring-shaped mounting bracket has multiple first mounting holes, and the feeding seat has multiple second mounting holes at the position where it is rotatably connected to the ring-shaped mounting bracket. The first mounting holes and the second mounting holes are adapted to each other, and the ring-shaped mounting bracket can be fixed by bolts.

[0033] A first ring frame and a second ring frame are coaxially fixed with the ring mounting bracket. A first arc-shaped rack and a second arc-shaped rack are respectively formed at the inner ring of the first ring frame and the outer ring of the second ring frame. The first arc-shaped rack and the second arc-shaped rack are adapted to the first gear.

[0034] A feeding device includes the aforementioned blocking rotary feeding structure.

[0035] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a novel design, and uses axial rotation to feed material instead of the traditional screw conveyor, which can effectively prevent material jamming and effectively block the open flame in the furnace from burning to the silo, so as to eliminate the safety hazard of silo fire.

[0036] Two baffle assemblies are placed inside the rotating scoop, and a material holding cavity and a transmission cavity are formed between the same side of the two baffle assemblies and the inner wall of the rotating scoop. When the included angle between the two baffle assemblies is changed, the volume of the material holding cavity can be adjusted to realize the holding volume inside the rotating scoop. Thus, the holding volume can be changed according to the amount of combustion per cycle to meet different combustion requirements and improve the applicability of the feeding structure provided by the present invention. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a blocking rotary feeding structure.

[0038] Figure 2 This is a schematic diagram of a blocking rotary feeding structure.

[0039] Figure 3 This is a half-section diagram of the blocking rotary feeding structure.

[0040] Figure 4 This is a top view of the blocking rotary feeding structure.

[0041] Figure 5 for Figure 4 Cross-sectional view along the AA direction.

[0042] Figure 6 This is a schematic diagram of the rotating scoop in a blocking rotating feeding structure.

[0043] Figure 7 This is a schematic diagram of another angle of the rotating scoop in a blocking rotating feeding structure.

[0044] Figure 8 This is a schematic diagram of the baffle assembly and the rotating scoop being separated in a blocking rotary feeding structure.

[0045] Figure 9 This is a schematic diagram showing the connection status of the baffle assembly and the adjusting component in a blocking rotary feeding structure.

[0046] Figure 10 This is a schematic diagram showing the connection state of the baffle assembly and the adjusting component at another angle in a blocking rotary feeding structure.

[0047] Figure 11 This is a schematic diagram showing the connection between the adjusting component and the transmission component in a blocking rotary feeding structure.

[0048] Figure 12 This is a schematic diagram showing the connection state of the adjusting component and the transmission component at another angle in a blocking rotary feeding structure.

[0049] Figure 13 This is a schematic diagram of the trigger element in a blocking rotary feeding structure.

[0050] Figure 14 This is a schematic diagram illustrating the flow of the rotating scoop in the material collection and feeding process of the blocking rotating feeding structure.

[0051] In the diagram: 1-Hopper, 2-Feeding seat, 3-Motor, 4-Feeding pipe, 5-Air inlet pipe, 6-Arc-shaped groove, 6a-Collection port, 6b-Discharge port, 7-Rotating scoop, 8-Collection notch, 9-Annular mounting frame, 10-First annular frame, 10a-First arc-shaped rack, 11-Connecting frame, 12-Second annular frame, 12a-Second arc-shaped rack, 13-First baffle, 14-Fixed shaft, 15-Second baffle 16-Arc-shaped slide plate, 17-Arc-shaped through groove, 18-Strip through groove, 19-Connecting shaft, 20-First gear, 21-Transmission belt, 22-Second gear, 23-Third gear, 24-Guide wheel, 25-Adjusting knob, 26-Threaded rod, 27-Sliding block, 28-Vibrator, 29-Wire, 30-Wind and unwind shaft, 31-Rack plate, 32-Fourth gear, 33-Through groove, 34-Connecting rod, 35-Sleeve. Detailed Implementation

[0052] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0053] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0054] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0055] Please see Figures 1-14 In this embodiment of the invention, a blocking rotary feeding structure includes a hopper 1, a feeding seat 2, and a feeding pipe 4.

[0056] The bottom of the hopper 1 has a conical part, which guides and gathers the material, making it easier to discharge the material.

[0057] The feeding seat 2 is connected to the conical part of the hopper 1, and a through channel is formed on the inner side of the feeding seat 2. The through channel connects to the inner side of the feeding pipe 4 of the hopper 1. Symmetrically arranged arc-shaped grooves 6 are formed on the opposite side walls of the through channel to form a cylindrical space inside the through channel. A rotating scoop 7 is rotatably installed on the inner side of the cylindrical space, and one end of the rotating scoop 7 passes through the circular groove formed on the feeding seat 2 and protrudes from the feeding seat 2. Of course, the rotating scoop 7 and the circular groove are sealed to ensure that the rotating scoop 7 can rotate while keeping the feeding seat 2 from communicating with the outside due to the setting of the circular groove.

[0058] The feeding base 2 is also equipped with a driving component, which is a motor 3. The output shaft of the motor 3 passes through the feeding base 2 and is fixedly connected to the rotating shaft of the rotating spoon 7. The motor 3 can drive the rotating spoon 7 to rotate inside the feeding base 2.

[0059] To elaborate further, please refer to Figure 5 The cylindrical space forms a collection port 6a and a discharge port 6b at its two ends inside the feeding seat 2 along the feeding direction, respectively. A collection notch 8 is formed on the rotating scoop 7 along the tangential direction. The passing area of ​​the collection notch 8 is greater than or equal to the passing area of ​​the collection port 6a and the discharge port 6b, and the arc of the collection notch 8 is less than or equal to 90°. Please refer to [link / reference]. Figure 14 When the rotating scoop 7 is in the collecting state, the collecting notch 8 is directly opposite the collecting port 6a. When in the feeding state, the rotating scoop 7 rotates, causing the position of the collecting notch 8 to change. After the rotating scoop 7 rotates 90°, the collecting notch 8 is no longer connected to either the collecting port 6a or the discharge port 6b. When in the feeding state, the rotating scoop 7 only needs to continue rotating a certain angle to make the collecting notch 8 intersect with the discharge port 6b. At this time, a small amount of material can fall from the intersecting point. When the rotating scoop 7 is relative to the collecting port 6a, the collecting notch 8 is directly opposite the collecting port 6a. After the material is rotated 180 degrees, the material collection notch 8 and the material drop port 6b intersect to their maximum extent. As can be seen from the above, if the arc of the material collection notch 8 is less than or equal to 90°, it can effectively ensure that the through channel is always blocked when the rotating scoop 7 is in any state, without affecting the feeding process. At the same time, since the inner space of the rotating scoop 7 is fixed, the material can be quantitatively conveyed, which can effectively prevent material jamming and effectively block the open flame in the furnace from burning into the silo, so as to eliminate the safety hazard of silo fire.

[0060] As another embodiment of the present invention, please refer to Figure 6-10 The inner side of the rotating scoop 7 is provided with a volume control mechanism for changing the inner storage volume of the rotating scoop 7. The volume control mechanism includes: a fixed shaft 14, two baffle assemblies and an adjusting component connected to the two baffle assemblies.

[0061] Specifically, the fixed shaft 14 is fixed inside the rotating scoop 7, and the axis of the fixed shaft 14 is collinear with the axis of the rotating scoop 7. The two baffle assemblies are symmetrically arranged and rotatably connected to the fixed shaft 14. The end of the baffle assembly away from the fixed shaft 14 abuts against the inner wall of the rotating scoop 7 and can slide relative to the inner wall of the rotating scoop 7. The adjustable member can be used to change the included angle between the two baffle assemblies. As can be seen from the above, the two baffle assemblies are placed inside the rotating scoop 7, and a material holding cavity and a transmission cavity are formed between the same side of the two baffle assemblies and the inner wall of the rotating scoop 7. When the included angle between the two baffle assemblies is changed, the volume of the material holding cavity can be adjusted to realize the holding volume inside the rotating scoop 7. Thus, the holding volume can be changed according to the single combustion volume to meet different combustion requirements and improve the applicability of the feeding structure provided by the present invention.

[0062] To elaborate further, please refer to Figure 11-12 The adjusting component includes a threaded rod 26, a sliding block 27, and a winding shaft 30. The threaded rod 26 is rotatably mounted on one end of the rotating scoop 7 that protrudes from the feeding seat 2 and is arranged radially along the rotating scoop 7. The axial direction of the threaded rod 26 is directly opposite the material collection notch 8. The sliding block 27 is threadedly connected to the threaded rod 26 and is slidably engaged with the end of the rotating scoop 7. The winding shaft 30 is placed inside the rotating scoop 7 and is parallel to the axial direction of the rotating scoop 7. One end of the winding shaft 30 passes through the strip-shaped through groove 18 formed on the rotating scoop 7 and is rotatably connected to the sliding block 27. The other end is rotatably mounted on a sliding block of the rotating scoop 7.

[0063] A sleeve 35 is fitted onto the unwinding shaft 30 and rotatably connected to it. The sleeve 35 is hinged to the two baffle assemblies via two sets of connecting rods 34. One end of the rotating threaded rod 26 is also fixed with an adjusting knob 25. By rotating the adjusting knob 25 with a wrench or other auxiliary tool, the adjusting knob 25 drives the threaded rod 26 to rotate. When the threaded rod 26 rotates, it drives the sliding block 27 to move along the axial direction of the threaded rod 26. When the sliding block 27 moves, it drives the unwinding shaft 30 to move toward or away from the middle position of the rotating scoop 7. Thus, the two baffle assemblies are rotated by the action of the two sets of connecting rods 34 to change the volume of the rotating scoop 7. At the same time, the threaded rod 26 and the sliding block 27 are threadedly connected. The self-locking effect of the threaded connection ensures that the position of the baffle assembly is fixed after adjustment.

[0064] It should be noted that the moving distance of the threaded rod 26 driving the sliding block 27 and the length of the strip groove 18 are less than the radius of the rotating scoop 7. Therefore, the strip groove 18 is only connected to the inner side of the transmission cavity and will not cause the holding cavity to be connected to the outside.

[0065] Furthermore, the baffle assembly includes a first baffle 13 and a second baffle 15. The first baffle 13 is rotatably mounted on the fixed shaft 14 and has an embedded position on the side facing the material collection notch 8.

[0066] The second baffle 15 is placed within the embedded position and is rotatably connected to the first baffle 13 via a connecting shaft 19. The thickness of the second baffle 15 is the same as the depth of the embedded position. The end of the second baffle 15 away from the connecting shaft 19 abuts against the inner wall of the rotating scoop 7 and can slide relative to the inner wall. This ensures that when the second baffle 15 and the first baffle 13 are placed parallel, the end face of the first baffle 13 and the end face of the second baffle 15 are on the same plane. At the same time, since the second baffle 15 abuts against the inner wall of the rotating scoop 7 and can slide relative to the inner wall, no material will enter between the second baffle 15 and the first baffle 13 during the rotation of the second baffle 15. The rotation of the second baffle 15 can squeeze the material in the holding cavity, ensuring that there is no jamming during discharge.

[0067] In order to enable the second baffle 15 to rotate relative to the first baffle 13 when the rotating scoop is in the dropping state or tending to drop state, in an exemplary embodiment, two connecting shafts 19 on the two baffle assemblies respectively pass through the arc-shaped through groove 17 formed on the rotating scoop 7, extend out of the inner side of the rotating scoop 7 and are rotatably connected by a transmission member. The two connecting shafts 19 rotate in opposite directions, and the transmission member is adapted to a trigger member that is detachably installed on the feeding seat 2.

[0068] Preferably, as another embodiment of the present invention, please refer to Figure 13 At least one rectangular through slot is formed in the inner part of the first baffle 13. A vibrator 28 is installed on the side of the second baffle 15 facing the rectangular through slot. A wire 29 is connected to the vibrator 28. The wire 29 is wound on the winding shaft 30. The winding directions of the wires 29 of the vibrators 28 on the two second baffles 15 on the winding shaft 30 are opposite. A fourth gear 32 is also fixed on the winding shaft 30. The fourth gear 32 meshes with a rack plate 31 fixed on the inner wall of the rotating scoop 7. When the included angle between the two first baffles 13 is adjusted, the winding shaft 30 moves and rotates through the action of the fourth gear 32 and the rack plate 31, thereby winding or unwinding the guide 29 to eliminate the phenomenon of the wire 29 tangling in the rotating scoop 7.

[0069] It should be further explained that the rotating spoon 7 can be positioned when it stops rotating. The opening direction of the rotating spoon 7 can be controlled by magnetic induction each time the feeding stops. In addition, the circuit controls the rotating spoon 7 to rotate 360 ​​degrees as one rotation. The feeding speed can be precisely controlled by adjusting the rotation speed and the number of rotations of the spoon. Of course, the start and stop of the vibrator 28 can also be controlled in a corresponding way. The magnetic induction control and circuit control are conventional technologies, and this application will not describe them in detail.

[0070] Specifically, the transmission component includes: an arc-shaped sliding plate 16 that slides on the rotating hopper 7 to seal the arc-shaped through groove 17; a connecting shaft 19 that passes through the arc-shaped sliding plate 16 and is rotatably connected to the arc-shaped sliding plate 16; a first gear 20 and a third gear 23 that are coaxially fixed to the two connecting shafts 19 respectively; a second gear 22 that is rotatably mounted on one of the arc-shaped sliding plates 16 and meshes with the third gear 23; and the rotating shafts of the first gear 20, the second gear 22, and the guide wheel 24 that is rotatably mounted on the sliding block 27 rotate synchronously through a transmission belt 21.

[0071] When the first gear 20 on the transmission component contacts the trigger, the first gear 20 rotates. When the first gear 20 rotates, it drives the second gear 22 to rotate through the transmission belt 21. When the second gear 22 rotates, it drives the third gear 23 to rotate. The rotation direction of the third gear 23 is opposite to the rotation direction of the first gear 20. Therefore, when the first gear 20 and the second gear 23 rotate synchronously and in opposite directions, they can drive the two second baffles 15 to move in opposite directions or towards each other through the two connecting shafts 19, so as to realize the extrusion requirement of the second baffles 15 on the material.

[0072] Meanwhile, by rotating the guide wheel 24 on the sliding block 27, the transmission belt 21 is kept taut as the sliding block 27 moves. Specifically, when the two first baffles 13 rotate toward each other, the distance between the two connecting shafts 19 becomes shorter. At this time, the guide wheel 24 moves with the sliding block 27 toward the arc of the rotating scoop 7, thereby tauting the transmission belt 21, and vice versa.

[0073] It should be noted that the arc-shaped slider 16 is mainly used to block the arc-shaped through groove 17, so that the arc-shaped through groove 17 is always in a blocked state, eliminating the possibility of the holding cavity communicating with the outside world through the arc-shaped through groove 17.

[0074] The aforementioned triggering element includes: an annular mounting bracket 9, which is rotatably mounted on the feeding seat 2. The annular mounting bracket 9 has multiple first mounting holes, and the feeding seat 2 has multiple second mounting holes at the positions where it is rotatably connected to the annular mounting bracket 9. The first mounting holes and the second mounting holes are adapted to each other, and the annular mounting bracket 9 can be fixed by bolts. It also includes a first annular frame 10 and a second annular frame 12 that are coaxially fixed to the annular mounting bracket 9. A first arc-shaped rack 10a and a second arc-shaped rack 12a are respectively formed at the inner ring of the first annular frame 10 and the outer ring of the second annular frame 12. The first arc-shaped rack 10a and the second arc-shaped rack 12a are adapted to the first gear 20.

[0075] Here it is defined that when the first gear 20 rotates forward, it can drive the two second baffles 15 to move in opposite directions. When the first gear 20 rotates in reverse, it can drive the two second baffles 15 to rotate in opposite directions. The first arc-shaped rack 10a is mainly used to drive the first gear 20 to rotate forward, and the second arc-shaped rack 12a is used to drive the first gear 20 to rotate in reverse. Thus, when the rotating scoop 7 rotates 360 degrees, the second baffles 15 first squeeze and then reset during one feeding.

[0076] It should be noted that since the position of the first gear 20 changes when the position of the first baffle 13 changes, the connection between the annular mounting frame 9 and the feeding seat 2 is set to a detachable connection, so that when the position of the first baffle 13 is adjusted, the annular mounting frame 9, the first annular frame 10 and the second annular frame 12 are adjusted synchronously.

[0077] In another embodiment of the present invention, a feeding pipe 4 is installed at the end of the feeding seat 2 away from the hopper 1. The feeding pipe 4 is used to connect to the combustion chamber. The feeding pipe 4 has a vertical section and an inclined section. The angle between the vertical section and the inclined section is 135°. An air inlet pipe 5 communicating with the inner side is provided on the vertical section of the feeding pipe 4. As can be seen from the above, the inclined section of the feeding pipe 4 has an angle of 45 degrees with respect to the horizontal plane, so that the material entering the feeding pipe 4 can slide along the inclined section, which plays a certain guiding role. The air inlet pipe 5 is mainly used to introduce air into the combustion chamber to provide the oxygen required for combustion.

[0078] A feeding device includes the aforementioned blocking rotary feeding structure.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0080] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A blocking rotary feeding structure, characterized in that, include: The hopper (1) has a conical part; The feeding seat (2) is connected to the conical part of the hopper (1) and communicates with the inner side. A through channel is formed on the inner side. The two opposite side walls of the through channel are formed with symmetrically arranged arc-shaped grooves (6) so that a cylindrical space is formed in the through channel. The cylindrical space forms a collection port (6a) and a drop port (6b) at both ends of the inner side of the feeding seat (2) along the feeding direction. A rotating scoop (7) is rotatably connected to the feeding seat (2) and placed in the cylindrical space. A drive unit is connected and installed on the feeding seat (2). The drive unit is used to drive the rotating scoop (7) to rotate, and the through channel is always in a blocked state. The rotating scoop (7) has a material collection notch (8) formed along the tangential direction. The area of ​​the material collection notch (8) is greater than or equal to the area of ​​the material collection port (6a) and the material drop port (6b), and the arc of the material collection notch (8) is less than or equal to 90°. The inner side of the rotating scoop (7) is provided with a volume control mechanism for changing the inner storage volume of the rotating scoop (7). The volume control mechanism includes: A fixed shaft (14) is fixed inside the rotating spoon (7), and the axis of the fixed shaft (14) is collinear with the axis of the rotating spoon (7); Two baffle assemblies are rotatably connected to the fixed shaft (14) and symmetrically arranged. One end of the baffle assembly away from the fixed shaft (14) abuts against the inner wall of the rotating spoon (7) and can slide relative to the inner wall of the rotating spoon (7). An adjusting member connected to the two baffle assemblies is used to change the included angle between the two baffle assemblies; The adjusting element includes: A threaded rod (26) is rotatably mounted on the rotating scoop (7) and arranged radially thereon. A sliding block (27) is threadedly connected to the threaded rod (26), and the sliding block (27) slides in contact with the outer wall of the rotating scoop (7); The winding shaft (30) is placed inside the rotating scoop (7). One end of the winding shaft (30) passes through the strip groove (18) formed on the rotating scoop (7) and is rotatably connected to the sliding block (27). The other end is rotatably mounted on the moving block that is slidably engaged with the rotating scoop (7). A sleeve (35) is sleeved on the unwinding shaft (30) and rotatably connected to the unwinding shaft (30). The sleeve (35) is hinged to the two baffle assemblies through two sets of connecting rods (34) hinged to it.

2. The blocking rotary feeding structure according to claim 1, characterized in that, The feeding seat (2) is equipped with a feeding pipe (4) at one end away from the hopper (1). The feeding pipe (4) has a vertical section and an inclined section, and the included angle between the vertical section and the inclined section is 135°. An air inlet pipe (5) communicating with the inner side is provided on the vertical section of the feeding pipe (4).

3. The blocking rotary feeding structure according to claim 1, characterized in that, The baffle assembly includes: The first baffle (13) is rotatably mounted on the fixed shaft (14) and has an embedded position on the side facing the aggregate notch (8); The second baffle (15) is rotatably connected to the first baffle (13) via the connecting shaft (19), and is placed in the embedded position. The thickness of the second baffle (15) is the same as the depth of the embedded position. The end of the second baffle (15) away from the connecting shaft (19) abuts against the inner wall of the rotating spoon (7) and can slide relative to the inner wall.

4. The blocking rotary feeding structure according to claim 3, characterized in that, The two connecting shafts (19) on the two baffle assemblies pass through the arc-shaped through groove (17) formed on the rotating spoon (7), extend out of the inner side of the rotating spoon (7) and are rotatably connected by the transmission component. The two connecting shafts (19) rotate in opposite directions. The transmission component is adapted to a trigger component that is detachably mounted on the feed seat (2).

5. The blocking rotary feeding structure according to claim 4, characterized in that, The transmission component includes: An arc-shaped sliding plate (16) for sealing the arc-shaped through groove (17) slides on the rotating scoop (7), and the connecting shaft (19) passes through the arc-shaped sliding plate (16) and is rotatably connected to the arc-shaped sliding plate (16); The first gear (20) and the third gear (23) are respectively fixed coaxially with the two connecting shafts (19); The second gear (22) is rotatably mounted on one of the arc-shaped slide plates (16) and meshes with the third gear (23). The shaft of the first gear (20), the shaft of the second gear (22), and the guide wheel (24) rotatably mounted on the sliding block (27) rotate synchronously through the transmission belt (21).

6. The blocking rotary feeding structure according to claim 5, characterized in that, The trigger includes: A ring mounting bracket (9) is rotatably mounted on the feeding seat (2). The ring mounting bracket (9) has multiple first mounting holes, and the feeding seat (2) is provided with multiple second mounting holes at the position where it is rotatably connected to the ring mounting bracket (9). The first mounting holes and the second mounting holes are adapted to each other, and the ring mounting bracket (9) can be fixed by bolts. A first ring frame (10) and a second ring frame (12) are coaxially fixed with the ring mounting frame (9). A first arc-shaped rack (10a) and a second arc-shaped rack (12a) are respectively formed at the inner ring of the first ring frame (10) and the outer ring of the second ring frame (12). The first arc-shaped rack (10a) and the second arc-shaped rack (12a) are adapted to the first gear (20).

7. A feeding device, characterized in that, Includes the blocking rotary feeding structure as described in any one of claims 1-6.

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