Flour conveying device

Abstract

The invention relates to the technical field of flour conveying, in particular to a flour conveying device which comprises a conveying cylinder. The discharging barrel is rotatably mounted at one end of the conveying barrel, the air pressure driving bin and the conveying bin are arranged on the two sides of the interior of the conveying barrel in a separated mode through a side-arranged T-shaped partition plate, one side of the draught fan communicates with a material guiding pipe, and the power transmission mechanism is arranged at the end, away from the discharging barrel, of the conveying barrel and rotatably connected with a power shaft of the draught fan through a main transmission belt. A detachable transmission part is arranged between the rotary power assembly and the power transmission mechanism, and a spiral discharging blade is arranged at the position, close to the outlet, in the discharging barrel; and the pneumatic driving mechanism is arranged in the pneumatic driving bin, one end of the pneumatic driving mechanism is connected with the power transmission mechanism, the pneumatic driving mechanism drives the connecting shaft to rotate so as to drive the spiral blade to rotate and operate, and a high-pressure gas outlet is formed in the center of the side T-shaped partition plate. The device fully and efficiently transfers flour, and is high in energy utilization rate, energy-saving and 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 "flour" we often refer to is wheat flour, that is, flour ground from wheat. Names such as "high-gluten wheat flour" refer to what we usually call flour. The flour ground by the mill needs to be bagged and stored. It needs to be transported from the processing workshop to the storage workshop. Since the flour particles are fine, an efficient flour conveying device is needed to transport the flour during the transportation process.

[0003] The existing patent authorization number is: CN214826639U, which discloses an efficient flour transmission device, including a bottom plate, a dust suction mechanism and a transmission mechanism; the bottom plate: universal wheels are symmetrically arranged at the four corners of the bottom surface, a push handle is arranged on the left side of the bottom plate, a vertical plate is symmetrically arranged 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 transmission device can clean the inner wall of the transmission cylinder to avoid the blockage of flour during the transmission process, thereby improving the transmission efficiency of flour; after analyzing the device, it can be found that for the transmission of flour, The conveying and transfer adopts the method of driving the spiral blades to rotate and continuously push the flour to move. Although it can effectively control the flour transmission, in the actual operation process, for the initial feeding of the flour, the drive during the transmission needs to be equipped with a corresponding drive system. Most of the feeding is driven by a fan, and the spiral blades are driven by a motor to rotate during the transmission. This will greatly increase energy consumption and increase operating costs. In addition, if only the spiral blades are used for driving and transmission, there is local flour that cannot be reached by the spiral blades, 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 cylinder, a fan, a feeding pipe, and a discharging cylinder; the transmission cylinder is arranged horizontally, and a discharging cylinder is rotatably installed at one end thereof for discharging flour, and a pneumatic drive bin and a transmission bin are arranged on both sides of the transmission cylinder 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 a feed port is connected to the outer end of the feed port with a feeding pipe, and the bottom end of the feeding pipe is connected to the fan, and one side of the fan is connected with a guide pipe, and suction is generated when the fan is running, so that the flour outside the guide pipe is transmitted to the feeding pipe through the fan, and then transferred to the transmission bin through the feed port, and a spiral blade is arranged 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 transmitted and transferred toward the discharging cylinder;

[0007] The power transmission mechanism is arranged at one 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 be fed into the transmission cylinder, part of the kinetic energy is transferred to the power transmission mechanism for use;

[0008] A rotary power assembly is arranged on the circumferential outer wall of the discharge barrel. A detachable transmission member is arranged 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 arranged 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] A 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 arranged at the center of one side of the pneumatic drive mechanism facing the side T-shaped partition plate. The connecting shaft movably passes 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 opened at the center of the side T-shaped partition plate. The connecting shaft rotates and passes through the center of the high-pressure gas outlet. The operation of the pneumatic drive mechanism generates high-pressure gas which is pressed into the transmission bin along the high-pressure gas outlet space around the connecting shaft, thereby generating thrust for the flour inside the transmission cylinder, and cooperating with the spiral blade to drive the flour at any place 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 effects of the present invention are as follows: 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 fully, quickly and efficiently transmit the flour, and at the same time utilize the operating kinetic energy of the single set of fans to fully improve the conversion rate of the kinetic energy, reduce energy consumption, and thereby 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 transmission device.

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

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

[0014] Figure 4 The figure is a schematic diagram of the side structure of a flour conveying device.

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

[0016] Figure 6 The figure is a schematic diagram of the side view structure 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.

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

[0019] Fig. 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 bin 18, pneumatic drive bin 19, main transmission belt 20, bevel gear I 21, bevel gear II 22, transmission shaft 23, lead 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, rotating connecting pipe port 36, connecting sleeve 37, gear ring 39, driving 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 positions or positional relationships based on the positions 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", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like 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 clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by 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 4A flour transmission device comprises a transmission drum 10, a fan 11, a feeding pipe 14 and a discharging drum 15; the transmission drum 10 is arranged horizontally, and a discharging drum 15 is rotatably installed at one end thereof for discharging flour; a pneumatic drive bin 19 and a transmission bin 18 are arranged on both sides of the transmission drum 10 by a side T-shaped partition plate 47 to separate them; a feeding port 17 is provided at the top of the transmission bin 18 near the side T-shaped partition plate 47; a feeding port 17 is provided at the outer end of the feeding port 17 to communicate with a feeding pipe 14; a bottom end of the feeding pipe 14 is communicated with the fan 11; a guide pipe 12 is communicated with one side of the fan 11; when the fan 11 is running, suction is generated to transmit flour outside the guide pipe 12 to the feeding pipe 14 through the fan 11, and then the flour is transferred to the transmission bin 18 through the feeding port 17; a spiral blade 32 is provided at the axis of the transmission bin 18, and the flour inside the transmission bin 18 is pushed by the spiral of the spiral blade 32 to be transmitted and transferred toward the discharging drum 15;

[0026] The power transmission mechanism is arranged at one end of the transmission cylinder 10 away from the discharge cylinder 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, when the fan 11 drives the flour to be fed into the transmission cylinder 10, part of the kinetic energy is transferred to the power transmission mechanism for use;

[0027] A rotating power assembly is arranged on the circumferential outer wall of the discharge barrel 15. A detachable transmission member is arranged between the rotating power assembly and the power transmission mechanism. The transmission member is used to transmit the kinetic energy on the power transmission mechanism to the rotating power assembly, thereby driving the discharge barrel 15 to rotate. A spiral discharge blade is arranged 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. A connecting shaft 31 is arranged at the center of one side of the pneumatic drive mechanism facing the side T-shaped partition plate 47. The connecting shaft 31 movably passes 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. The connecting shaft 31 rotates and passes through the center of the high-pressure gas outlet 28. 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 for the flour inside the transmission cylinder 10, and cooperates 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 the flour inside the transmission cylinder 10;

[0029] The transmission cylinder 10 is divided into two spaces, a transmission bin 18 and a pneumatic drive bin 19, by using a side T-shaped partition plate 47. Then, a single set of fans 11 is set up to drive the flour to be sent into the transmission cylinder 10 through the feeding pipe 14. Then, under the action of the power transmission mechanism, the rotational kinetic energy of the fan 11 is decomposed and partly 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 cooperates with the rotational thrust, 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 fully converting and utilizing the kinetic energy of the fan 11, thereby greatly improving the operating efficiency of the device and reducing the operating cost.

[0030] In the embodiment of the present invention, the feed pipe 12 is externally connected to a storage bin, a storage box and other equipment storing flour, and the specific connection equipment is determined according to the actual situation; two sets of saddles 16 are symmetrically installed on both sides of the bottom of the transmission cylinder 10, and a fixing plate is also installed at the bottom of the fan 11. The saddle 16 and the fixing plate are provided with positioning holes, that is, the saddle 16 and the fixing plate are fixed with external fixing bolts and other structures;

[0031] The discharge cylinder 15 is configured as a side-mounted funnel-shaped structure, a rotating connection nozzle 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. The connecting sleeve 37 is rotatably sleeved on the rotating connection nozzle 36, thereby realizing a rotating 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 principle of the spiral discharge blades arranged inside the outlet of the discharge barrel 15 to output the flour in coordination with the rotation of the discharge barrel 15 is the same as the principle of the existing concrete mixer unloading, so the spiral discharge blades there are not illustrated. The existing concrete mixer discharge end is provided with a pair of spiral discharge blades, which, when rotating forward, lift and drop the material and force the material to make axial movement, thereby strongly stirring the material. When reversing, the discharge blades discharge the mixed material to realize the output of concrete; the spiral discharge blades in this technical solution utilize the rotation direction of the discharge barrel 15 to control the continuous output of flour, and the details are not repeated here.

[0034] In one embodiment of the present invention, 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 a bevel gear II 22, one side of the bevel gear II 22 is vertically meshed with a 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, 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, refer to Figure 5 , Figure 6 , Figure 7 , Fig. 9 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. 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 lead screw 24 is synchronously driven to rotate, thereby driving the nut 25 to move back and forth along the lead 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 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. The arc-shaped sealing baffles 29 are in sealing contact. The end away from the connecting shaft 31 is swingably set on the wall of the high-pressure gas outlet 28 through 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. At this time, the high-pressure gas outlet 28 is opened, and 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, and the external air is sucked 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 the high-pressure gas outlet 28 is closed. 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, and then the backward transmission of the flour inside the transmission cylinder 10 is promoted;

[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 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 port 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, refer to Figure 4 , Figure 8 The rotary power assembly includes a gear ring 39 installed on the circumferential outer wall of the discharge barrel 15, one side of the gear ring 39 is meshed with a driving tooth 40, and the driving tooth 40 is connected to a connecting rod Ⅰ41 on the side facing the power transmission mechanism, and the end of the connecting rod Ⅰ41 is connected to a connecting rod Ⅱ42 through a transmission member, and one side of the connecting rod Ⅱ42 is rotatably 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 Ⅱ42, the transmission member, and the connecting rod Ⅰ41, thereby driving the gear ring 39 to control the rotation of the discharge barrel 15;

[0042] There are multiple groups of transmission parts and they are connected and distributed between the connecting rod I 41 and the connecting rod II 42. The transmission parts include a sleeve 44, and a telescopic rod 45 is telescopically connected inside the sleeve 44. A positioning key 46 is installed on the axial outer wall of the telescopic rod 45. A positioning slide rail 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 rail for movement. The adjacent sleeves 44 and the telescopic rods 45 are connected in a card-type 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 a suitable number of transmission parts according to the different lengths of the discharge barrel 15 installed at the end of the transmission barrel 10 during use, and then the stretching distance between the sleeve 44 and the telescopic rod 45 is adjusted to maintain a 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 the power elements, electrical components and the adapted power supply, are connected through wires, and the electrical connection is 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 transfer 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 screw 24 rotates to push the flour inside the transmission bin 18 toward the discharge barrel 15. 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 tooth 40 to rotate, and then drives the gear ring 39 to drive the discharge barrel 15 to rotate, and the spiral discharge blades inside the discharge barrel 15 are used to output the flour.

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

Claims

1. A flour conveying device, characterized in that: The invention comprises a transmission cylinder (10), a fan (11), a feeding pipe (14), and a discharging cylinder (15); the transmission cylinder (10) is arranged horizontally, and a discharging cylinder (15) is rotatably mounted on 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 feeding 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 feeding port (17) is connected to a feeding pipe (14); the bottom end of the feeding pipe (14) is connected to the fan (11); one side of the fan (11) is connected to a feed guide pipe (12); and a spiral blade (32) is provided at the axis of the transmission chamber (18); A power transmission mechanism is arranged 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) through a main transmission belt (20); A rotary power assembly is arranged on the circumferential outer wall of the discharge barrel (15), a detachable transmission member is arranged between the rotary power assembly and the power transmission mechanism, and a spiral discharge blade is arranged 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 arranged at the center of one side of the pneumatic drive mechanism facing the side T-shaped partition plate (47), the connecting shaft (31) movably passes 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).

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

3. A flour conveying device according to claim 2, characterized in that: The power transmission mechanism comprises 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 a bevel gear II (22); one side of the bevel gear II (22) is vertically meshed with a bevel gear I (21); a guide shaft is installed in the middle of one side of the bevel gear I (21); the guide shaft is rotatably connected to the power shaft (13) downward through a main transmission belt (20).

4. A flour conveying device according to claim 3, characterized in that: The pneumatic drive mechanism comprises a lead screw (24) connected to the inner end of the transmission shaft (23), a nut (25) being threadedly connected to the lead screw (24), a guide device for limiting the rotation of the limiter being provided on the nut (25), a U-shaped connecting rod (26) being installed on both sides of the nut (25), a piston plate (27) being 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) being in sliding sealing contact with the inner wall of the pneumatic drive chamber (19), and the pneumatic drive chamber (19) An air inlet (33) is provided on one side of the bottom close to the side T-shaped partition plate (47), 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 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 arranged on the wall of the high-pressure gas outlet (28) through an elastic swing shaft (30).

5. A flour conveying device according to claim 4, 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.

6. A flour conveying device according to claim 5, 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 lead screw (24).

7. A flour conveying device according to claim 6, characterized in that: The rotating power assembly includes a gear ring (39) installed 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).

8. A flour conveying device according to claim 7, characterized in that: 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 a telescopic rod (45). A positioning key (46) is installed on the axial outer wall of the telescopic rod (45). A positioning slide rail 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 rail for movement. The adjacent sleeves (44) and telescopic rods (45) are connected by a snap-fit ​​connection between the head and tail.

9. A flour conveying device according to claim 8, 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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