Wheat conveying device with self-cleaning function for flour processing

Abstract

The application discloses a wheat conveying device with a self-cleaning function for flour processing applied to the field of conveying equipment, and through the design of a filter cylinder, the spiral feeder can realize the supplementary cleaning of the residual dust or wheat chaff on the surface of wheat when feeding at a low speed, and during the movement of the cleaning piece with a notch, the orientation of the cleaning piece is adjusted in combination with a rotating motor, so that the cleaning piece can effectively avoid the interference of the feeding frame and the discharging frame during the movement along the axis direction in the shell to realize the comprehensive scraping of the annular gap, in addition, the electromagnetic ring, the arc-shaped groove, the baffle and the discharging channel are matched, when moving to the left end of the feeding frame and the right end of the discharging frame, the baffle can be retracted to form a dust storage groove, and through the adjustment of the position of the subsequent cleaning piece and the position of the notch, the dust in the dead angle area can be transferred, finally, through the addition of the slope ring and the independent scraping ring piece, the problem that the dust accumulation is too thick and the pollutants may backseep into the material can be solved.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment, and in particular to a wheat conveying device for flour processing with a self-cleaning function. Background Technology

[0002] In the process of processing wheat into flour, the wheat raw materials need to be transported and transferred so that the transported wheat can be used for subsequent milling operations. During this process, augers or conveyor belts are used to transport the wheat, so that wheat processing can be carried out continuously.

[0003] The prior art CN202411898124.6 discloses a high-efficiency wheat conveyor for flour processing. By setting up a horizontal spiral conveyor rod, an inclined spiral conveyor rod, and a first filter plate, the wheat is circulated during transportation, separating large particles of impurities and clumps of wheat, which is beneficial to improving the quality of subsequent flour processing and increasing production efficiency.

[0004] The prior art CN202323634055.1 discloses a conveying device for wheat processing. Through the cooperation of a screen, a fixed block, a fan, and an air nozzle, it achieves the purpose of cleaning impurities inside wheat grains. The screen can remove large particles of impurities in wheat, and then the fan and air nozzle can blow out small particles of impurities in wheat, further cleaning the wheat.

[0005] The existing technology described above uses a screen structure to clean the surface dust of wheat when conveying raw wheat. However, when the auger is conveying raw wheat, the awns remaining on the surface of the wheat will rub against each other, causing new impurities to be formed when the wheat is conveyed in the auger, which will then contaminate the raw wheat. Therefore, it is necessary to screen and clean the awns generated by friction during the conveying process of the auger. In addition, it is necessary to carry out a comprehensive cleaning treatment inside the auger to prevent secondary pollution. Summary of the Invention

[0006] The core of this invention lies in the cooperation of a filter cylinder, a notched cleaning component, and a rotating motor. This allows the cleaning component to effectively avoid interference from the feed and discharge frames during its axial movement within the housing, achieving comprehensive scraping of the annular gap and ensuring the quality of self-cleaning within the housing. This solves the problems of incomplete screening and cleaning dead zones in existing auger conveyors. Furthermore, the addition of a slope ring and an independent scraping ring addresses the issue of excessive dust accumulation potentially causing backflow of contaminants.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A wheat conveying device for flour processing with self-cleaning function includes a shell, on the surface of which a feed frame and a discharge frame are installed symmetrically, and a conveyor is arranged perpendicularly to the shell below the discharge frame. A tapered tube is connected to one end of the shell, and support plates are installed on the surfaces of the shell and the tapered tube that are facing away from each other. A filter cylinder is installed inside the shell, and a screw feeder is installed inside the filter cylinder. One end of the feed frame and the discharge frame extends into the interior of the filter cylinder. A collar is installed through the tapered tube on the side of the filter cylinder, and a cross baffle is connected to the surface of the collar. A drive motor is installed on the surface of the cross baffle, and a lead screw is connected to the output end of the drive motor. A nut is threaded onto the surface of the lead screw, and a bushing is fitted onto the surface of the nut. A cleaning component for cleaning the interior of the shell is connected to the surface of the bushing.

[0009] The cleaning component has a notch inside, and arc-shaped grooves are formed on both sides of the cleaning component. An electromagnetic ring is embedded in the inner wall of the arc-shaped groove. A spring is connected to the surface of the electromagnetic ring, and a baffle is connected to the tail end of the spring.

[0010] The end of the arc-shaped groove is provided with a discharge channel that extends to the surface of the notch, and the discharge channel is located on the outside of the bushing. Solenoid valves are installed inside the discharge channel.

[0011] Furthermore, the drive motor, collar, and cross baffle are all located inside the conical tube, with the drive motor located on the side of the filter cartridge closest to the conical tube.

[0012] Furthermore, the feed frame, discharge frame, and notch have the same cross-sectional width, the arc groove is located above the notch, and the arc length of the arc groove is less than half the circumference of the cleaned part.

[0013] Furthermore, the surface of the baffle near the electromagnetic ring is coated with a magnetic layer that attracts the electromagnetic ring, and a displacement sensor connected to the electromagnetic ring signal is installed on the surface of the cleaning component.

[0014] Furthermore, a drive motor and a rotary motor are respectively mounted on the surfaces of the two support plates. The output end of the drive motor is connected to the end of the screw feeder, and the output end of the rotary motor is connected to the end of the collar.

[0015] Furthermore, a dust collection frame is installed through the inner wall of the outer casing, and the top of the dust collection frame is flush with the inner bottom wall of the outer casing.

[0016] Furthermore, a ring is installed on the surface of the tapered tube near the filter cylinder, and a follower ring is slidably connected to the inner surface of the ring, with the follower ring sleeved on the outer side of the bushing.

[0017] Optionally, a slope ring with a right-angled triangle cross-section is fixed to the inner surface of the cleaning component, and multiple connecting rods are fixed to the surface of the slope ring. The surface of the connecting rods is connected to a scraper ring whose outer surface contacts the outer surface of the filter cartridge.

[0018] Furthermore, there is a gap between the tip of the slope ring and the outer surface of the filter cartridge, and the cross-sectional width of the scraper ring is smaller than that of the cleaning component.

[0019] Compared with the prior art, the advantages of this invention are:

[0020] (1) This application, through the cooperation of filter cylinder, cleaning component with notch and rotating motor, can realize the cleaning of wheat raw materials during the conveying process and the comprehensive self-cleaning inside the shell. The design of the filter cylinder can enable the screw feeder to supplement the cleaning of residual dust or wheat awns on the surface of wheat when feeding at a slow speed. During the movement of the cleaning component, the rotation motor is used to adjust its position so that the cleaning component can effectively avoid interference from the feed frame and discharge frame when moving along the axial direction inside the shell to clean dust, and realize the comprehensive scraping of the annular gap. In addition, the cleaning component uses electromagnetic ring, arc groove and baffle and discharge channel to cooperate. When it moves to the left end of the feed frame and the right end of the discharge frame, the baffle can be recessed to form a dust storage tank. By adjusting the position of the cleaning component and the position of the notch, the dust in the cleaning dead corner area is transferred to achieve comprehensive self-cleaning and ensure the quality of self-cleaning inside the shell.

[0021] (2) This application solves the problem that excessive dust accumulation may cause back seepage of contaminants by adding a slope ring and an independent scraper ring. When the cleaning component moves to the right, the excessive dust will pass through the slope ring to the cleaned area, avoiding the dust accumulation from deepening and spreading to block the surface of the filter cartridge. During the process of the cleaning component moving to the right, the scraper ring is used to scrape off the adhering material on the outer wall of the filter cartridge and clean the surface of the filter cartridge. Through the graded cleaning design, it not only prevents the filter cartridge from being blocked and secondary pollution, but also takes into account the maintenance of the cleanliness of the shell, ensuring the reliability of the self-cleaning operation inside the shell and the anti-contamination of the material. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation of the drive motor and the rotary motor of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the outer shell of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the ring, follower ring, and cleaning component of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the circular ring and the follower ring of the present invention;

[0027] Figure 6This is a schematic diagram of the structure of the collar, crossbar, lead screw, cleaning component, and tapered tube of the present invention;

[0028] Figure 7 This is a schematic diagram of the notch on the surface of the cleaning component according to the present invention;

[0029] Figure 8 This is a schematic diagram of the electromagnetic ring, spring, baffle, arc plate, and discharge channel of the present invention;

[0030] Figure 9 This is a cross-sectional view of the discharge channel of the present invention;

[0031] Figure 10 This is a schematic diagram showing the state of the cleaning component of the present invention at different positions on the surface of the filter cartridge;

[0032] Figure 11 This is a schematic diagram of the slope ring, connecting rod, scraper ring, and cleaning component of the present invention;

[0033] Figure 12 This is a partial cross-sectional view of the slope ring, connecting rod, scraper ring, cleaning component, and filter cylinder of the present invention;

[0034] Figure 13 This is a schematic diagram illustrating the state of dust accumulation when the cleaning component of the present invention moves to the right, preventing it from spreading and clogging the filter cartridge.

[0035] Explanation of the labels in the diagram:

[0036] 1. Outer shell; 101. Feed frame; 102. Discharge frame; 103. Conical tube; 2. Drive motor; 201. Screw feeder; 3. Rotary motor; 4. Dust collection frame; 5. Conveyor; 6. Filter cartridge; 601. Ring; 602. Follower ring; 7. Cleaning component; 71. Baffle; 72. Arc groove; 73. Electromagnetic ring; 74. Discharge channel; 8. Lead screw component; 9. Drive motor; 10. Collar; 11. Horizontal baffle; 12. Slope ring; 13. Connecting rod; 14. Scraper ring component. Detailed Implementation

[0037] The technical solutions will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0038] Example 1:

[0039] Please see Figures 1-7A wheat conveying device for flour processing with self-cleaning function includes a housing 1. A feed frame 101 and a discharge frame 102 are installed on the surface of the housing 1 in a symmetrical arrangement. A conveyor 5 is arranged perpendicular to the housing 1 below the discharge frame 102. A tapered tube 103 is connected to one end of the housing 1. Support plates are installed on the surfaces of the housing 1 and the tapered tube 103 that are opposite to each other. A filter cylinder 6 is installed inside the housing 1. A screw feeder 201 is installed inside the filter cylinder 6. One end of the feed frame 101 and the discharge frame 102 extends into the interior of the filter cylinder 6. A collar 10 is installed through the surface of the tapered tube 103 near the filter cylinder 6. A cross baffle 11 is connected to the surface of the collar 10. A drive motor 9 is installed on the surface of the cross baffle 11. A lead screw 8 is connected to the output end of the drive motor 9. A nut is threaded onto the surface of the lead screw 8. A bushing is sleeved on the surface of the nut. A cleaning component 7 for cleaning the interior of the housing 1 is connected to the surface of the bushing.

[0040] Please see Figures 7-8 The cleaning component 7 has a notch inside, and arc-shaped grooves 72 are provided on both sides of the cleaning component 7. An electromagnetic ring 73 is embedded in the inner wall of the arc-shaped groove 72. A spring is connected to the surface of the electromagnetic ring 73, and a baffle 71 is connected to the tail end of the spring.

[0041] Please see Figures 8-9 The end of the arc groove 72 is provided with a discharge channel 74 extending to the surface of the notch, and the discharge channel 74 is located on the outside of the bushing. Solenoid valves are installed inside the discharge channel 74.

[0042] Please see Figures 6-7 The drive motor 9, collar 10 and cross baffle 11 are all located inside the conical tube 103, and the drive motor 9 is located on the side of the filter cartridge 6 close to the conical tube 103.

[0043] Please see Figure 1 and Figure 9 The feed frame 101, the discharge frame 102 and the notch have the same cross-sectional width. The arc groove 72 is located above the notch, and the arc length of the arc groove 72 is less than half the circumference of the cleaning part 7.

[0044] The surface of the baffle 71 near the electromagnetic ring 73 is coated with a magnetic layer that attracts the electromagnetic ring 73. The surface of the cleaning component 7 is equipped with a displacement sensor (which is prior art and is mainly used to determine the position of the cleaning component 7, providing a basis for the rotation motor 3 to adjust the position of the cleaning component 7 and the start of the electromagnetic ring 73).

[0045] Please see Figures 1-2The surfaces of the two support plates are respectively equipped with a drive motor 2 and a rotary motor 3. The output end of the drive motor 2 is connected to the end of the screw feeder 201, and the output end of the rotary motor 3 is connected to the end of the collar 10.

[0046] Please see Figures 1-3 A dust collection frame 4 is installed through the inner wall of the outer casing 1, and the top of the dust collection frame 4 is flush with the inner bottom wall of the outer casing 1.

[0047] Specifically, in this application, both the inner walls of the outer shell 1 and the discharge channel 74 are coated with an anti-stick coating. When conveying wheat raw materials, the wheat raw materials are put into the feed frame 101 and then into the interior of the filter cylinder 6. When feeding the filter cylinder 6 through the feed frame 101, the filling rate of the wheat raw materials is controlled at 40%-60%. This makes the internal material relatively loose during the screw feeding. The wheat awns that fall off the surface during feeding fall smoothly into the gap formed between the filter cylinder 6 and the inner wall of the outer shell 1 (hereinafter referred to as the gap). Then, under the drive of the drive motor 2, the screw feeder 201 rotates, which can transport and transfer the wheat raw materials that have entered the filter cylinder 6. After moving to the position of the discharge frame 102, the material can be discharged. Then, it is transferred to the next process position by the conveyor 5.

[0048] During this process, the drive motor 9 rotates, which drives the lead screw 8 to rotate, thereby causing the cleaning component 7 to move linearly and scrape away the wheat awns and floating dust accumulated on the surface of the gap until it moves to the position of the dust collection frame 4 and collects the scraped waste.

[0049] During the waste cleaning process, the cleaning component 7 passes through the feed frame 101 and the discharge frame 102. The complete ring-shaped cleaning component 7 will be intercepted and interfered by the two. Therefore, a notch with the same cross-sectional width as the feed frame 101 is designed on the surface of the cleaning component 7. In this way, when passing through the feed frame 101 and the discharge frame 102, the notch can be on the same axis as the feed frame 101 and the discharge frame 102 respectively. (Since the feed frame 101 and the discharge frame 102 are in an up-down position, when it is necessary to adjust the notch to be on the same axis as the discharge frame 102, it is necessary to use the rotating motor 3 to drive the collar 10 to rotate, thereby driving the cleaning component 7 to achieve position adjustment.)

[0050] Please see Figure 8 As the cleaning component 7 moves from left to right, its notch first faces upwards, then it moves along the inner wall of the filter cylinder 6, passes the feed frame 101, and continues to move. Inside the filter cylinder 6, the right surface of the cleaning component 7 can scrape away the awns and dust that have fallen off the surface of the wheat raw material during slow conveying (e.g., Figure 10(as shown in position b), and push it into the dust collection frame 4. Then, the cleaning part 7 continues to move to the right and will encounter the discharge frame 102. At this time, the rotating motor 3 drives the collar 10 and the horizontal baffle 11 to rotate, so that the notch on the surface of the cleaning part 7 faces downward (as shown in position b). Figure 10 (as shown in position c), allowing it to smoothly pass through the discharge frame 102 and move to the position near the tail end of the filter cylinder 6. Then, using the rotating motor 3, the notch is adjusted to an upward position (as shown in the image). Figure 10 (as shown in the d position state)

[0051] As the cleaning component 7 continues to move to the right, most of the gap on the right side of the discharge frame 102 can be scraped away (because of the gap, it cannot be completely scraped away). During the continued rightward movement, the electromagnetic ring 73 and the baffle 71 in the right arc groove 72 can be activated, causing the right baffle 71 to move to the left to collect dust until the cleaning component 7 moves to the right wall position of the filter cylinder 6 (that is, the surface of the ring 601 and the follower ring 602), so that the right side surface of the cleaning component 7 is in close contact with the surface of the filter cylinder 6. Then, the cleaning component 7 is indirectly rotated by the rotating motor 3 to adjust the gap downward. During this process, the dust collected in the arc groove 72 is synchronously switched to the lower positions at both ends of the arc groove 72 and transferred to the two discharge channels 74. The electromagnetic ring 73 on the right side is then closed.

[0052] Then, the cleaning component 7 moves to the left until it reaches the left side of the discharge frame 102. At this point, the solenoid valve is activated to discharge the dust accumulated in the right discharge channel 74 into the gap. During the leftward movement of the cleaning component 7, the area above the gap can be cleaned (the amount of dust on the inner wall of the upper half of the outer shell 1 is relatively small, mainly due to the presence of the dustproof coating, which causes the dust to concentrate in the lower half under the influence of gravity. Thus, during subsequent cleaning, the amount of dust falling back into the filter cartridge 6 is relatively small). After moving to the feed frame 101, the cleaning component 7 is switched to the notch-up position and moves past the feed frame 101 towards the left inner wall of the filter cartridge 6 (e.g., Figure 10 (As shown in position a), the electromagnetic ring 73 on the left is activated, causing the baffle 71 to move to the right and form a recess to collect the dust that moves to the left. This is the same principle as cleaning the gap on the right side of the discharge frame 102. Subsequently, the corresponding dust is transferred to the interior of the dust collection frame 4, so as to achieve self-cleaning in the gap and avoid cleaning dead corners, ensuring the comprehensiveness of self-cleaning.

[0053] Please see Figures 4-5 A ring 601 (the outer diameter of the ring 601 is the same as the inner diameter of the outer shell 1) is installed on the surface of the tapered tube 103 near the filter cylinder 6, and a follower ring 602 is slidably connected to the inner surface of the ring 601, and the follower ring 602 is sleeved on the outside of the bushing.

[0054] Specifically, the end of the filter cylinder 6 near the conical tube 103 can be sealed using the ring 601 and the follower ring 602. The design of the follower ring 602 ensures that the lead screw 8 is not affected when rotating and that dust does not spread in the space on the side of the filter cylinder 6 near the conical tube 103.

[0055] Example 2:

[0056] Please see Figures 11-12 The inner surface of the cleaning component 7 is fixed with a slope ring 12 with a right-angled triangle cross section, and multiple connecting rods 13 are fixed on the surface of the slope ring 12. The surface of the connecting rods 13 is connected to a scraper ring 14 whose outer surface contacts the outer surface of the filter cylinder 6.

[0057] There is a gap between the tip of the slope ring 12 and the outer surface of the filter cylinder 6, and the cross-sectional width of the scraper ring 14 is smaller than the cross-sectional width of the cleaning component 7.

[0058] Specifically, in Embodiment 1, the annular diameter of the cleaning component 7 is the same as the annular diameter of the gap. Therefore, the cleaning component 7 can effectively scrape and clean the gap when it moves. However, in actual operation, as the scraping operation gradually moves to the right, the amount of dust on the right side surface of the cleaning component 7 gradually increases, and the thickness of the dust gradually becomes the same as the annular diameter of the gap. If the scraping and cleaning is continued at this time, the accumulated dust will be transferred to the inside of the filter cartridge 6, resulting in a decrease in the quality of wheat cleaning. To improve this problem, this embodiment is adopted.

[0059] In this embodiment, the inner diameter of the cleaning component 7 is larger than the outer diameter of the filter cartridge 6. Therefore, during the movement of the cleaning component 7, if there is a large amount of dust in the gap, it will move across the surface of the slope ring 12 to the already cleaned gap surface (e.g., Figure 13 As shown), it will not accumulate and contact the surface of the filter cartridge 6, preventing dust from clogging the surface of the filter cartridge 6. At the same time, during the movement of the cleaning component 7, it can drive the scraper ring component 14 to scrape and clean the surface of the filter cartridge 6. The scraped parts fall onto the surface of the slope ring 12 and roll down along the slope surface, waiting for the next round of accumulation cleaning.

[0060] When the cleaning component 7 moves to the right side of the discharge frame 102 and the left side of the feed frame 101 to clean and collect dust, the axial distance between the right side of the discharge frame 102 and the left side of the feed frame 101 and the two ends of the filter cylinder 6 is relatively short, and the amount of dust is small. When the cleaning component 7 pushes to collect, it can enter the space formed by the recess of the baffle 71, and the corresponding dust transfer operation can still be completed smoothly.

[0061] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A wheat conveying device for flour processing with self-cleaning function, comprising a housing (1), wherein a feed frame (101) and a discharge frame (102) are mounted on the surface of the housing (1) in a symmetrical arrangement, and a conveyor (5) arranged perpendicularly to the housing (1) is arranged below the discharge frame (102), characterized in that: One end of the outer shell (1) is connected to a tapered tube (103). Support plates are installed on the surfaces of the outer shell (1) and the tapered tube (103) that are opposite to each other. A filter cylinder (6) is installed inside the outer shell (1). A screw feeder (201) is installed inside the filter cylinder (6). One end of the feed frame (101) and the discharge frame (102) extends into the interior of the filter cylinder (6). A collar (10) is installed through the surface of the tapered tube (103) near the filter cylinder (6). A cross plate (11) is connected to the surface of the collar (10). A drive motor (9) is installed on the surface of the cross plate (11). A lead screw (8) is connected to the output end of the drive motor (9). A nut is threaded on the surface of the lead screw (8). A bushing is sleeved on the surface of the nut. A cleaning component (7) for cleaning the interior of the outer shell (1) is connected to the surface of the bushing. The cleaning component (7) has a notch inside, and arc grooves (72) are provided on both sides of the cleaning component (7). An electromagnetic ring (73) is inlaid on the inner wall of the arc groove (72). A spring is connected to the surface of the electromagnetic ring (73), and a baffle (71) is connected to the tail end of the spring. The end of the arc groove (72) is provided with a discharge channel (74) extending to the surface of the notch, and the discharge channel (74) is located outside the bushing. Solenoid valves are installed inside the discharge channel (74).

2. The wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: The drive motor (9), collar (10) and cross baffle (11) are all located inside the conical tube (103), and the drive motor (9) is located on the side of the filter cartridge (6) close to the conical tube (103).

3. The wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: The feed frame (101), discharge frame (102) and notch have the same cross-sectional width. The arc groove (72) is located above the notch, and the arc length of the arc groove (72) is less than half the circumference of the cleaning part (7).

4. A wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: The surface of the baffle (71) near the electromagnetic ring (73) is coated with a magnetic layer that attracts the electromagnetic ring (73), and the surface of the cleaning component (7) is equipped with a displacement sensor that is signal-connected to the electromagnetic ring (73).

5. A wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: A drive motor (2) and a rotary motor (3) are respectively mounted on the surfaces of the two support plates. The output end of the drive motor (2) is connected to the end of the screw feeder (201), and the output end of the rotary motor (3) is connected to the end of the collar (10).

6. A wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: A dust collection frame (4) is installed through the inner wall of the outer shell (1), and the top of the dust collection frame (4) is flush with the inner bottom wall of the outer shell (1).

7. A wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: A ring (601) is installed on one end surface of the tapered tube (103) near the filter cylinder (6), and a follower ring (602) is slidably connected to the inner surface of the ring (601), and the follower ring (602) is sleeved on the outside of the bushing.

8. A wheat conveying device for flour processing with self-cleaning function according to claim 1, characterized in that: The inner surface of the cleaning component (7) is fixed with a slope ring (12) with a right-angled triangle cross section, and multiple connecting rods (13) are fixed on the surface of the slope ring (12). The surface of the connecting rods (13) is connected to a scraper ring (14) whose outer surface contacts the outer surface of the filter cylinder (6).

9. A wheat conveying device for flour processing with self-cleaning function according to claim 8, characterized in that: There is a gap between the tip of the slope ring (12) and the outer surface of the filter cylinder (6), and the cross-sectional width of the scraper ring (14) is smaller than that of the cleaning member (7).

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