Flour conveying device

Abstract

The present invention relates to the field of flour conveying technology, specifically a flour conveying device, comprising a conveying drum; a discharge drum rotatably mounted at one end of the conveying drum; a pneumatic drive chamber and a conveying chamber separated by a lateral T-shaped partition plate on both sides of the conveying drum; a feed pipe connected to one side of the fan; a power transmission mechanism disposed at the end of the conveying drum away from the discharge drum; the power transmission mechanism rotatably connected to the power shaft of the fan via a main transmission belt; a detachable transmission member disposed between the rotating power assembly and the power transmission mechanism; a spiral discharge blade disposed near the outlet of the discharge drum; a pneumatic drive mechanism disposed within the pneumatic drive chamber; one end of the pneumatic drive mechanism connected to the power transmission mechanism; the pneumatic drive mechanism drives the connecting shaft to rotate, thereby driving the spiral blade to rotate; a high-pressure gas outlet is provided at the center of the lateral T-shaped partition plate. This device efficiently and effectively transfers flour, has high energy utilization, and is energy-efficient.

Description

Technical Field

[0001] The invention relates to the technical field of flour transmission, in particular to a flour transmission device. Background Art

[0002] The term "flour" often refers to wheat flour, which is ground from wheat. Terms like "high-gluten wheat flour" refer to what we commonly call flour. Flour ground by a mill needs to be bagged and stored. It needs to be transported from the processing workshop to the storage workshop. Because flour particles are relatively fine, an efficient flour conveyor is required during this process.

[0003] The existing patent authorization number is: CN214826639U, which discloses a high-efficiency flour conveying device, including a bottom plate, a dust suction mechanism and a conveying mechanism; the bottom plate: universal wheels are symmetrically provided at the four corners of its bottom surface, a push handle is provided on the left side of the bottom plate, a vertical plate is symmetrically provided on the left side of the upper surface of the bottom plate, and a symmetrically distributed electric push rod is rotatably connected to the right side of the upper surface of the bottom plate through a U-shaped connecting seat. The flour conveying device can clean the inner wall of the conveying cylinder to avoid the blockage of flour during the conveying process, thereby improving the conveying efficiency of flour; after analyzing the device, it can be found that for the conveying of flour, The conveying and transfer adopts the method of driving the spiral blade to rotate and continuously push the flour to move. Although it can effectively control the flour transmission, in actual operation, for the initial feeding of flour and the drive during transmission, corresponding drive systems are required. Most of the feeding is driven by a fan, and the spiral blade is driven by a motor to rotate during transmission. This will greatly increase energy consumption and increase operating costs. Moreover, if only the spiral blade is used for drive transmission, there is some flour that cannot be reached by the spiral blade, causing it to remain in the barrel for a long time, affecting the quality and speed of flour transmission.

[0004] Therefore, in view of the above-mentioned problems, the present technical solution proposes a flour conveying device. Summary of the Invention

[0005] The object of the present invention is to provide a flour conveying device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flour transmission device, comprising a transmission drum, a fan, a feeding pipe, and a discharging drum; the transmission drum is arranged horizontally, and a discharging drum is rotatably installed at one end thereof for outputting flour, and an air pressure driven bin and a transmission bin are provided on both sides of the transmission drum by side T-shaped partition plates, and a feed port is provided at the top of the transmission bin near the side T-shaped partition plate, and the outer end of the feed port is connected to a feeding pipe, and the bottom end of the feeding pipe is connected to the fan, and one side of the fan is connected to a guide pipe. When the fan is running, suction is generated to transmit the flour outside the guide pipe into the feeding pipe through the fan, and then transferred to the transmission bin through the feed port, and a spiral blade is provided at the axis of the transmission bin, and the spiral of the spiral blade is used to push the flour inside the transmission bin to be transferred toward the discharging drum;

[0007] The power transmission mechanism is arranged at the end of the transmission cylinder away from the discharge cylinder. The power transmission mechanism is rotatably connected to the power shaft of the fan through the main transmission belt. That is, when the fan drives the flour to feed into the transmission cylinder, part of the kinetic energy is transferred to the power transmission mechanism for utilization;

[0008] A rotary power assembly is provided on the circumferential outer wall of the discharge barrel. A detachable transmission member is provided between the rotary power assembly and the power transmission mechanism. The transmission member is used to transmit the kinetic energy on the power transmission mechanism to the rotary power assembly, thereby driving the discharge barrel to rotate. A spiral discharge blade is provided inside the discharge barrel near the outlet. When the discharge barrel rotates, the mixed flour is discharged along the outlet end of the discharge barrel.

[0009] The pneumatic drive mechanism is arranged inside the pneumatic drive bin. One end of the pneumatic drive mechanism is connected to the power transmission mechanism. A connecting shaft is provided at the center of one side of the pneumatic drive mechanism facing the side T-shaped partition plate. The connecting shaft moves through the center of the side T-shaped partition plate and is fixedly connected to the spiral blade. The pneumatic drive mechanism drives the connecting shaft to rotate, thereby driving the spiral blade to rotate. A high-pressure gas outlet is provided at the center of the side T-shaped partition plate. The connecting shaft rotates through the center of the high-pressure gas outlet. The operation of the pneumatic drive mechanism generates high-pressure gas that is pressed into the transmission bin along the high-pressure gas outlet space around the connecting shaft, thereby generating thrust on the flour inside the transmission cylinder, and cooperating with the spiral blade to drive the flour at any point inside the transmission cylinder, thereby accelerating the rapid transmission and transfer of flour inside the transmission cylinder.

[0010] Compared with the prior art, the beneficial effect of the present invention is that by setting a single set of fans to drive flour feeding, the kinetic energy of its rotation, under the action of the power transmission mechanism, drives the discharge barrel to rotate and accelerate the discharge, drives the spiral blades to rotate to accelerate the spiral pushing, and drives the pneumatic drive mechanism inside the pneumatic drive bin to input high-pressure gas to blow the material into the transmission barrel. The three work together to transmit the flour quickly and efficiently. At the same time, the operating kinetic energy of the single set of fans is utilized to fully improve the conversion rate of the kinetic energy, reduce energy consumption, and thus reduce the transmission and operating costs of flour. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of a flour conveying device.

[0012] Figure 2 This is a schematic diagram of the main structure of a flour conveying device.

[0013] Figure 3 This is a schematic diagram of the top view of a flour conveying device.

[0014] Figure 4 It is a side view structural schematic diagram of a flour conveying device.

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of a side-mounted T-shaped partition plate in a flour conveying device.

[0016] Figure 6 This is a side view structural diagram of a side-mounted T-shaped partition plate in a flour conveying device.

[0017] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of A in the figure.

[0018] Figure 8 for Figure 4 Schematic diagram of the enlarged structure of B.

[0019] Figure 9 for Figure 2 Schematic diagram of the enlarged structure of C in the middle;

[0020] Among them: transmission cylinder 10, fan 11, feed pipe 12, power shaft 13, feed pipe 14, discharge cylinder 15, saddle 16, feed port 17, transmission chamber 18, pneumatic drive chamber 19, main transmission belt 20, bevel gear I 21, bevel gear II 22, transmission shaft 23, screw 24, nut 25, U-shaped connecting rod 26, piston plate 27, high-pressure gas outlet 28, arc-shaped sealing baffle 29, elastic swing shaft 30, connecting shaft 31, spiral blade 32, air inlet 33, air inlet net 34, elastic baffle 35, rotary connecting pipe port 36, connecting sleeve 37, gear ring 39, drive gear 40, connecting rod I 41, connecting rod II 42, auxiliary transmission belt 43, sleeve 44, telescopic rod 45, positioning key 46, side T-shaped partition plate 47. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0025] See also Figure 1-Figure 4, a flour conveying device includes a conveying drum 10, a fan 11, a feeding pipe 14, and a discharging drum 15; the conveying drum 10 is arranged horizontally, and a discharging drum 15 is rotatably installed at one end thereof for outputting flour. An air pressure driven bin 19 and a conveying bin 18 are separated on both sides of the interior of the conveying drum 10 by a side T-shaped partition plate 47. A feeding port 17 is provided at the top of the conveying bin 18 near the side T-shaped partition plate 47. The outer end of the feeding port 17 is connected to the feeding pipe 14, and the bottom end of the feeding pipe 14 is connected to the fan 11. A guide pipe 12 is connected to one side of the fan 11. When the fan 11 is running, suction is generated to transfer the flour outside the guide pipe 12 into the feeding pipe 14 through the fan 11, and then transferred to the conveying bin 18 through the feeding port 17. A spiral blade 32 is provided at the axis of the interior of the conveying bin 18, and the spiral rotation of the spiral blade 32 pushes the flour inside the conveying bin 18 to be transferred toward the discharging drum 15;

[0026] The power transmission mechanism is provided at the end of the transmission drum 10 away from the discharge drum 15. The power transmission mechanism is rotatably connected to the power shaft 13 of the fan 11 through the main transmission belt 20. That is, while the fan 11 drives the flour to be fed into the transmission drum 10, part of the kinetic energy is transferred to the power transmission mechanism for utilization.

[0027] A rotary power assembly is provided on the circumferential outer wall of the discharge barrel 15. A detachable transmission member is provided between the rotary power assembly and the power transmission mechanism. The transmission member is used to transfer the kinetic energy from the power transmission mechanism to the rotary power assembly, thereby driving the discharge barrel 15 to rotate. A spiral discharge blade is provided inside the discharge barrel 15 near the outlet. When the discharge barrel 15 rotates, the mixed flour is discharged along the outlet end of the discharge barrel 15.

[0028] The pneumatic drive mechanism is arranged inside the pneumatic drive bin 19, one end of the pneumatic drive mechanism is connected to the power transmission mechanism, and a connecting shaft 31 is provided at the center of one side of the pneumatic drive mechanism facing the side T-shaped partition plate 47, the connecting shaft 31 moves through the center of the side T-shaped partition plate 47 and is fixedly connected to the spiral blade 32, the pneumatic drive mechanism drives the connecting shaft 31 to rotate, thereby driving the spiral blade 32 to rotate, and a high-pressure gas outlet 28 is provided at the center of the side T-shaped partition plate 47, the connecting shaft 31 rotates and passes through the center of the high-pressure gas outlet 28, and the operation of the pneumatic drive mechanism generates high-pressure gas that is pressed into the transmission bin 18 along the space of the high-pressure gas outlet 28 around the connecting shaft 31, thereby generating thrust on the flour inside the transmission cylinder 10, and cooperating with the spiral blade 32 to drive the flour at any place inside the transmission cylinder 10, thereby accelerating the rapid transmission and transfer of flour inside the transmission cylinder 10;

[0029] By using a side T-shaped partition plate 47 to divide the transmission cylinder 10 into two spaces, a transmission bin 18 and a pneumatic drive bin 19, and then setting a single set of fans 11 to drive the flour through the feed pipe 14 into the transmission cylinder 10, and then under the action of the power transmission mechanism, the rotational kinetic energy of the fan 11 is decomposed, and part of it is transferred to the pneumatic drive bin 19 to drive the pneumatic drive mechanism to move back and forth, transport high-pressure gas toward the inside of the transmission cylinder 10, and synchronously drive the spiral blades 32 to rotate. The wind force and the rotational thrust cooperate, and at the same time, under the connection of the transmission parts, the discharge cylinder 15 is driven to rotate, thereby efficiently and fully transmitting the flour inside the transmission cylinder 10, and at the same time, the kinetic energy of the fan 11 is fully converted and utilized, which greatly improves the operating efficiency of the device and reduces the operating cost.

[0030] In the embodiment of the present invention, the feed pipe 12 is externally connected to a storage bin, storage box, or other equipment storing flour. The specific connection equipment is determined according to actual conditions. Two sets of saddles 16 are symmetrically mounted on both sides of the bottom of the transmission cylinder 10. A fixing plate is also mounted on the bottom of the fan 11. Positioning holes are provided on the saddles 16 and the fixing plate, which are fixed with external fixing bolts or other structures.

[0031] The discharge cylinder 15 is configured as a side-mounted funnel-shaped structure. A rotary connection nozzle 36 is installed at the output end of the transmission cylinder 10. A connecting sleeve 37 is installed at the large-diameter end of the discharge cylinder 15. The connecting sleeve 37 is rotatably sleeved on the rotary connection nozzle 36 to achieve a rotary connection between the discharge cylinder 15 and the transmission cylinder 10.

[0032] Specifically, a sealing ring is provided at the rotational connection between the air inlet net 34 and the connecting sleeve 37 to prevent the gas and flour inside the transmission cylinder 10 from leaking along the connection;

[0033] It should be noted that the spiral discharge blades provided at the outlet of the discharge barrel 15, in conjunction with the rotation of the discharge barrel 15, discharge the flour in the same manner as the discharge of existing concrete mixers. Therefore, the spiral discharge blades are not illustrated. Existing concrete mixers have a pair of spiral discharge blades at the discharge end. When rotating forward, these blades lift and drop the material and force it to axially move, thereby intensely stirring the material. When rotating backward, the discharge blades discharge the mixed material, achieving concrete output. The spiral discharge blades in this technical solution utilize the rotation direction of the discharge barrel 15 to control the continuous discharge of flour. Details are not repeated here.

[0034] In one embodiment of the present invention, the power transmission mechanism includes a transmission shaft 23 rotatably disposed in the middle of the side wall of the transmission cylinder 10. The inner end of the transmission shaft 23 is connected to the pneumatic drive mechanism, and the outer end is connected to a bevel gear II 22. A bevel gear I 21 is vertically meshed with one side of the bevel gear II 22. A guide shaft is installed in the middle of one side of the bevel gear I 21. The guide shaft is downwardly connected to the power shaft 13 through the main transmission belt 20. That is, the kinetic energy of the fan 11 is transmitted to the transmission shaft 23 by the transmission of the main transmission belt 20, the bevel gear I 21, and the bevel gear II 22.

[0035] Specifically, the guide shaft is positioned toward the side wall of the transmission cylinder 10 through a supporting sleeve rod.

[0036] As a preferred embodiment of the present invention, see Figure 5 、 Figure 6 、 Figure 7 、 Figure 9 The pneumatic drive mechanism includes a screw 24 connected to the inner end of the transmission shaft 23, a nut 25 is threadedly connected to the screw 24, and a guide device for limiting the rotation of the nut 25 is provided on the nut 25. A U-shaped connecting rod 26 is installed on both sides of the nut 25. A piston plate 27 is fixedly installed on the end of the U-shaped connecting rod 26 away from the nut 25. The circumferential edge of the piston plate 27 is in sliding and sealing contact with the inner wall of the pneumatic drive chamber 19. When the transmission shaft 23 rotates, the screw 24 is synchronously driven to rotate, thereby driving the nut 25 to move back and forth along the screw 24, thereby driving the piston plate 27 to slide back and forth along the inside of the pneumatic drive chamber 19. At the same time, an air inlet 33 is opened on one side of the bottom of the pneumatic drive chamber 19 near the side T-shaped partition plate 47, and a group of elastic baffles 35 are swingably arranged inside the air inlet 33. A plurality of groups of arc-shaped sealing baffles 29 are swingably arranged at equal intervals inside the high-pressure gas outlet 28 located around the connecting shaft 31. Adjacent arc-shaped sealing baffles 29 are in sealing contact with each other. The end portion away from the connecting shaft 31 is swingably set on the wall of the high-pressure gas outlet 28 by the elastic swing shaft 30. When the piston plate 27 moves toward the side T-shaped partition plate 47, downward pressure is generated on the inside of the air inlet 33. At this time, the elastic baffle 35 closes the air inlet 33, and the gas between the piston plate 27 and the side T-shaped partition plate 47 is gradually pressurized. The arc-shaped sealing baffle 29 is pressed to swing outward, and the high-pressure gas outlet 28 is opened. Then, the high-pressure gas is transmitted along the high-pressure gas outlet 28 toward the inside of the transmission cylinder 10. When the piston plate 27 moves away from the side T-shaped partition plate 47, the elastic baffle 35 is forced to swing upward, and the air inlet 33 is opened, sucking external air between the piston plate 27 and the side T-shaped partition plate 47. At this time, the arc-shaped sealing baffle 29 is sucked and closes the high-pressure gas outlet 28. Therefore, under the cyclic movement of the piston plate 27, the high-pressure gas is continuously transported toward the inside of the transmission cylinder 10 through the high-pressure gas outlet 28, thereby promoting the backward transmission of flour inside the transmission cylinder 10;

[0037] The end surface of the arc-shaped sealing baffle 29 in contact with the connecting shaft 31 is provided with a smooth sealing layer, which is used to maintain the sealing contact between the arc-shaped sealing baffle 29 and the connecting shaft 31 without affecting the normal rotation of the connecting shaft 31;

[0038] The force swinging principle of the corresponding arc-shaped sealing baffle 29 and the elastic baffle 35 in the high-pressure gas outlet 28 and the gas inlet 33 is consistent with the existing piston cylinder gas inlet and outlet operation principle, and the details are not repeated here;

[0039] Specifically, an air intake net 34 is provided at the bottom of the air intake 33 for filtering the inhaled air.

[0040] As a preferred embodiment of the present invention, the end of the connecting shaft 31 away from the spiral blade 32 moves through the high-pressure gas outlet 28, the middle of the side T-shaped partition plate 47 and is fixedly connected to the end of the screw 24, so that when the screw 24 rotates, the spiral blade 32 is synchronously driven to rotate.

[0041] As a preferred embodiment of the present invention, see Figure 4 , Figure 8 The rotary power assembly includes a gear ring 39 mounted on the circumferential outer wall of the discharge barrel 15. A driving tooth 40 is meshed on one side of the gear ring 39. The driving tooth 40 is connected to a connecting rod I 41 on the side facing the power transmission mechanism. The end of the connecting rod I 41 is connected to a connecting rod II 42 through a transmission member. One side of the connecting rod II 42 is rotationally connected to the transmission shaft 23 through an auxiliary transmission belt 43. That is, when the transmission shaft 23 rotates, the driving tooth 40 is synchronously driven to rotate under the connection of the auxiliary transmission belt 43, the connecting rod II 42, the transmission member, and the connecting rod I 41, thereby driving the gear ring 39 to control the rotation of the discharge barrel 15.

[0042] There are multiple groups of transmission parts and the connections are distributed between the connecting rod I 41 and the connecting rod II 42. The transmission parts include a sleeve 44, a telescopic rod 45 is telescopically connected to the inside of the sleeve 44, and a positioning key 46 is installed on the axial outer wall of the telescopic rod 45. A positioning slide is provided on the corresponding positioning key 46 on the inner side of the sleeve 44. The positioning key 46 is placed in the positioning slide and moves. The adjacent sleeves 44 and the telescopic rod 45 are connected by a snap-fit ​​connection between the head and tail. The telescopic connection between the sleeve 44 and the telescopic rod 45 is used to facilitate the selection of an appropriate number of transmission parts according to the different lengths of the discharge cylinder 15 installed at the end of the transmission cylinder 10 during use, and then the stretching distance between the adjusting sleeve 44 and the telescopic rod 45 is adjusted to maintain smooth kinetic energy transmission between the connecting rod II 42 and the connecting shaft 31.

[0043] Specifically, the connecting rod I 41 and the connecting rod II 42 are fixed on one side facing the outer wall of the discharge cylinder 15 and the transmission cylinder 10 by a supporting sleeve rod.

[0044] The working principle of the present invention is: in the idle position of the device, all the driving parts mentioned above, which refer to power elements, electrical components and adapted power supplies, are connected through wires, and the electrical connections are completed in a sequential working order between the electrical components. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and does not explain the electrical control. During operation, the feed pipe 12 is connected to the external flour storage device, and then a suitable discharge barrel 15 is installed at the output end of the transmission barrel 10, and then the fan 11 is started to transmit the flour along the feed pipe 14 to the inside of the transmission barrel 10. At this time, under the connection of the main transmission belt 20, the transmission shaft 23 is driven to rotate, and then the spiral blade 32 is driven to rotate through the lead screw 24 and the connection with the connecting shaft 31. The flour in the transmission bin 18 is transferred toward the discharge barrel 15 by rotating the lead screw 24. At the same time, the piston plate 27 is controlled to move back and forth along the inside of the pneumatic drive bin 19 when the lead screw 24 rotates. Under the action of the swinging air intake of the elastic baffle 35 inside the air inlet 33 and the swinging air outlet of the arc-shaped sealing baffle 29 at the high-pressure gas outlet 28, the high-pressure gas between the piston plate 27 and the side T-shaped partition plate 47 is pressed into the transmission barrel 10. Then, with the rotational thrust of the spiral blade 32, the flour at any place inside the transmission barrel 10 is quickly transmitted. At the same time, under the transmission of the auxiliary transmission belt 43, the driving transmission member drives the driving gear 40 to rotate, and then drives the ring gear 39 to drive the discharge barrel 15 to rotate, and the spiral discharging blades inside the discharge barrel 15 are used to output the flour.

[0045] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A flour conveying device, characterized in that: It comprises a transmission cylinder (10), a fan (11), a feeding pipe (14), and a discharge cylinder (15); the transmission cylinder (10) is arranged horizontally, and a discharge cylinder (15) is rotatably installed at one end of the transmission cylinder (10); a pneumatic drive chamber (19) and a transmission chamber (18) are separated by a side T-shaped partition plate (47) on both sides of the transmission cylinder (10); a feed port (17) is provided at the top of the transmission chamber (18) near the side T-shaped partition plate (47); the outer end of the feed port (17) is connected to the feeding pipe (14); the bottom end of the feeding pipe (14) is connected to the fan (11); a guide pipe (12) is connected to one side of the fan (11); and a spiral blade (32) is provided at the axis of the transmission chamber (18); A power transmission mechanism is provided at one end of the transmission cylinder (10) away from the discharge cylinder (15), and the power transmission mechanism is rotationally connected to the power shaft (13) of the fan (11) via a main transmission belt (20); A rotary power assembly is provided on the circumferential outer wall of the discharge barrel (15); a detachable transmission member is provided between the rotary power assembly and the power transmission mechanism; and a spiral discharge blade is provided inside the discharge barrel (15) near the outlet; A pneumatic drive mechanism is arranged inside the pneumatic drive chamber (19), one end of the pneumatic drive mechanism is connected to a power transmission mechanism, a connecting shaft (31) is provided at the center of one side of the pneumatic drive mechanism facing the side T-shaped partition plate (47), the connecting shaft (31) moves through the center of the side T-shaped partition plate (47) and is fixedly connected to the spiral blade (32), the pneumatic drive mechanism drives the connecting shaft (31) to rotate, thereby driving the spiral blade (32) to rotate, a high-pressure gas outlet (28) is opened at the center of the side T-shaped partition plate (47), and the connecting shaft (31) rotates and passes through the center of the high-pressure gas outlet (28); The power transmission mechanism includes a transmission shaft (23) rotatably arranged in the middle of the side wall of the transmission cylinder (10), the inner end of the transmission shaft (23) is connected to the pneumatic drive mechanism, and the outer end is connected to the bevel gear II (22), one side of the bevel gear II (22) is vertically meshed with the bevel gear I (21), and a guide shaft is installed in the middle of one side of the bevel gear I (21), and the guide shaft is rotatably connected to the power shaft (13) downward through the main transmission belt (20); The pneumatic drive mechanism includes a lead screw (24) connected to the inner end of the transmission shaft (23), a nut (25) is threadedly connected to the lead screw (24), and a guide device for limiting the rotation of the limiter is provided on the nut (25). A U-shaped connecting rod (26) is installed on both sides of the nut (25), and a piston plate (27) is fixedly installed at the end of the U-shaped connecting rod (26) away from the nut (25). The circumferential edge of the piston plate (27) is in sliding sealing contact with the inner wall of the pneumatic drive chamber (19). (19) An air inlet (33) is provided on one side of the bottom near the side T-shaped partition plate (47), a group of elastic baffles (35) are swingably provided inside the air inlet (33), a plurality of groups of arc-shaped sealing baffles (29) are swingably provided in an annular manner at equal intervals inside the high-pressure gas outlet (28) located around the connecting shaft (31), adjacent arc-shaped sealing baffles (29) are in sealing contact with each other, and the end of the arc-shaped sealing baffle (29) away from the connecting shaft (31) is swingably provided on the wall of the high-pressure gas outlet (28) through an elastic swing shaft (30); The rotary power assembly includes a gear ring (39) mounted on the circumferential outer wall of the discharge barrel (15), one side of the gear ring (39) is meshed with a driving tooth (40), the driving tooth (40) is connected to a connecting rod I (41) on the side facing the power transmission mechanism, the end of the connecting rod I (41) is connected to a connecting rod II (42) through a transmission member, and one side of the connecting rod II (42) is rotationally connected to the transmission shaft (23) through an auxiliary transmission belt (43); The transmission member is provided with multiple groups and connected and distributed between the connecting rod I (41) and the connecting rod II (42). The transmission member includes a sleeve (44). The sleeve (44) is telescopically connected to the telescopic rod (45). A positioning key (46) is installed on the axial outer wall of the telescopic rod (45). A positioning slide is provided on the positioning key (46) corresponding to the inner side of the sleeve (44). The positioning key (46) is placed in the positioning slide and moves. The adjacent sleeves (44) and the telescopic rod (45) are connected by a snap-fit ​​connection between the head and tail.

2. A flour conveying device according to claim 1, characterized in that: The discharge cylinder (15) is configured as a side-mounted funnel-shaped structure, a rotary connecting pipe opening (36) is installed at the output end of the transmission cylinder (10), and a connecting sleeve (37) is installed at the large-diameter end of the discharge cylinder (15), and the connecting sleeve (37) is rotatably sleeved on the rotary connecting pipe opening (36).

3. A flour conveying device according to claim 2, characterized in that: The end surface of the arc-shaped sealing baffle (29) in contact with the connecting shaft (31) is provided with a smooth sealing layer.

4. A flour conveying device according to claim 3, characterized in that: The end of the connecting shaft (31) away from the spiral blade (32) moves through the high-pressure gas outlet (28), the middle of the side T-shaped partition plate (47), and is fixedly connected to the end of the screw (24).

5. A flour conveying device according to claim 4, characterized in that: The connecting rod I (41) and the connecting rod II (42) are fixed on one side facing the outer wall of the discharge cylinder (15) and the transmission cylinder (10) by a supporting sleeve rod.

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