Anti-blocking structure of potato screening device

Abstract

The invention discloses an anti-blocking structure of a potato screening device. The anti-blocking structure comprises a main support; the screening barrel is rotationally connected to the main support, a plurality of screening hole sets are formed in the side wall of a screening cavity of the screening barrel, and each screening hole set comprises a plurality of screening holes distributed in the axial direction of the screening barrel; a plurality of telescopic devices are arranged on the transverse plate, each telescopic device comprises a first telescopic rod, and the first telescopic rods are connected with the first telescopic grooves in an inserted mode; the second telescopic rod is connected with the second telescopic groove in an inserted mode. The connecting rod is fixed between the first telescopic rod and the second telescopic rod; a plurality of grooves are formed in the outer surface of the fixing ring; the roller is rotationally connected with one end, close to the fixing ring, of the first telescopic rod; and the elastic device tends to drive the roller to move towards the roller side. And the screening barrel continues to rotate, the second telescopic rods can be inserted into and moved out of the screening holes one by one, and the potatoes blocked in the screening holes are automatically ejected out in the rotating process of the screening barrel.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of potato screening, and particularly relates to a potato screening device anti-blocking structure. BACKGROUND

[0002] Potato is a perennial herbaceous plant, and its tuber can be used for food, which is the fourth most important food crop in the world, only less than wheat, rice and corn. Potato is also known as yam, yam head, xiangshan yam, yam, shanyang yam, yang yam, egg, and so on. In some southern provinces, it is also called "winter potato", because it is usually planted in winter after harvesting the autumn rice. When selling or breeding, potatoes are classified according to their size, and the potatoes are classified into appropriate sizes for unified management to achieve maximum economic benefit.

[0003] The patent with the publication number CN216965261U discloses a screening device for potato processing. The potato is conveyed into the net-shaped roller, the support seat rotates at its output end and drives the rotating shaft through the belt pulley, and finally drives the net-shaped roller to rotate through the cross plate. The net-shaped roller drives the potato in the net-shaped roller to roll from right to left. Different sizes of potatoes are discharged through different hole diameters on the net-shaped roller, and finally the screening work is completed through the front side of the flow guide frame and the left side of the net-shaped roller.

[0004] However, the above-mentioned device may cause the potato to be stuck in the net-shaped roller during potato screening, which affects the screening of the potato. SUMMARY

[0005] The purpose of the present application is to provide a potato screening device anti-blocking structure, which can remove the stuck potato.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a potato screening device anti-blocking structure, comprising: a main support; a screening barrel, which is rotationally connected to the main support, is obliquely arranged, and is provided with a screening cavity penetrating through both ends thereof, a plurality of screening hole groups are arranged on the side wall of the screening cavity, the plurality of screening hole groups are uniformly distributed around the axis of the screening barrel, and each screening hole group comprises a plurality of screening holes distributed along the axial direction of the screening barrel; a transverse plate, which is fixed to the main support, is provided with a plurality of telescopic devices, the telescopic devices correspond one-to-one to the number of screening holes of a group of screening hole groups, the transverse plate is provided with a first telescopic groove and a second telescopic groove corresponding to the telescopic devices, and the telescopic device comprises: a first telescopic rod, which is inserted into the first telescopic groove; A second telescopic rod is inserted into the second telescopic slot; A connecting rod is fixed between the first telescopic rod and the second telescopic rod; A fixing ring is fixed on the outer wall of the screening barrel, and a plurality of grooves are arranged on the outer surface of the fixing ring, and an introduction arc surface and an exit arc surface are arranged on both sides of the groove respectively; A roller is rotatably connected to one end of the first telescopic rod close to the fixing ring, and the outer wall of the roller abuts against the outer surface of the fixing ring; An elastic device has a tendency to move the roller to the roller side; A rotating device is used to drive the screening barrel to rotate.

[0007] Further, the elastic device comprises: A fixed shaft is fixed on the side of the transverse plate away from the screening barrel, and a connecting hole is arranged on the connecting rod for the fixed shaft to pass through; A connecting block is connected to the fixed shaft; A compression spring is sleeved on the fixed shaft, and the compression spring is arranged between the connecting block and the connecting rod.

[0008] Further, a connecting external thread is arranged on the end of the fixed shaft away from the transverse plate, a connecting threaded hole is arranged on the connecting block, and the connecting external thread is threadedly connected with the connecting threaded hole.

[0009] Further, a fixed protrusion is fixed on the connecting rod, a rotating push rod is hinged to the fixed protrusion, a sliding block is hinged to the end of the rotating push rod away from the fixed protrusion, a T-shaped sliding groove is arranged on the transverse plate for the sliding block to be inserted, a linkage groove is arranged on the transverse plate and communicates with the T-shaped sliding groove, the opening of the linkage groove faces upward, a lifting plate is inserted into the linkage groove, and an adjusting device is arranged on the transverse plate to adjust the height of the lifting plate.

[0010] Further, the adjusting device comprises: An adjusting fixed plate is fixed on the lifting plate; An adjusting fixed block is fixed on the transverse plate, and an adjusting threaded hole is arranged on the adjusting fixed block; An adjusting screw is threadedly connected with the adjusting threaded hole, and the upper end of the adjusting screw is rotatably connected with the adjusting fixed plate.

[0011] Furthermore, the fixed protrusion is provided with a through hole, and a first crossbar and a second crossbar are fixed at both ends of the transverse plate. A light emitting device is fixed on the first crossbar, and a light receiving device is fixed on the second crossbar. A blocking rod is fixed on the fixed protrusion. When the second telescopic rod is inserted into the screening hole, the light receiving device receives the light emitted by the light emitting device. During the process of the second telescopic rod moving out of the screening hole, the blocking rod blocks the light emitted by the light emitting device.

[0012] Furthermore, the first end of the second telescopic rod, away from the connecting rod, is provided with an extrusion rod.

[0013] Furthermore, an elastic layer is fixed to the end of the extrusion rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) When the screening bucket rotates, the fixed ring on the outer wall rotates synchronously. The elastic device drives the roller to abut against the outer surface of the fixed ring until the roller enters the groove through the lead-out arc surface. At this time, the first telescopic rod moves and the second telescopic rod moves synchronously through the connecting rod. The second telescopic rod is precisely inserted into the corresponding screening hole. During the extension and retraction process, the potato blocked in the screening hole is directly pushed out. Then the fixed ring continues to rotate, and the roller moves out of the groove through the lead-out arc surface until the roller 1 abuts against the outer wall of the fixed ring. At this time, the second telescopic rod moves out of the corresponding screening hole at the same time. Similarly, as the screening bucket continues to rotate, the second telescopic rod will insert into and move out of each screening hole one by one, thereby realizing that the potato blocked in the screening hole is automatically pushed out during the rotation of the screening bucket. (2) The position of the connecting block on the fixed shaft can be changed by rotating the connecting block. If the connecting block moves closer to the horizontal plate, the initial compression of the compression spring increases, the preload increases, and the roller has a greater contact pressure on the fixed ring, which is suitable for cleaning harder or tighter blockages. If the connecting block moves away from the horizontal plate, the spring preload decreases and the contact pressure weakens, which is suitable for screening smaller or softer potatoes and avoiding excessive squeezing and damage to the potatoes. (3) In some cases, when it is not necessary to move the second telescopic rod, it is only necessary to use the adjustment device to drive the lifting plate to move downward, the lifting plate to drive all the sliders to move downward, and the sliders to drive the second telescopic rod to move out of the screening hole by rotating the push rod, so that the second telescopic rod will not move back and forth. (3) When the second telescopic rod is not inserted into place, the blocking rod will block the light emitted by the light emitting device, and the light receiving device will not receive the light. The light receiving device will send the signal to the alarm system, and the alarm system will issue an alarm signal. The potato may be stuck too tightly, or the second telescopic rod may not be able to move out smoothly. The alarm signal can notify the staff to deal with it in time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the anti-clogging structure of the potato screening device of the present invention; Figure 2 for Figure 1 A magnified view of a section at point I; Figure 3 for Figure 1 Enlarged view of section II in the middle; Figure 4 for Figure 1 A magnified view of a section at point III; Figure 5 for Figure 1 Side view; Figure 6 for Figure 5 A magnified view of the section at point AA; Figure 7 for Figure 5 A magnified view of the section at point BB; Figure 8 This diagram shows the change in the position of the roller during the rotation of the fixed ring.

[0016] In the diagram: 1. Main support; 2. Screening barrel; 3. Screening chamber; 4. Screening hole; 5. Horizontal plate; 6. Telescopic device; 7. First telescopic groove; 8. Second telescopic groove; 9. First telescopic rod; 10. Second telescopic rod; 11. Connecting rod; 12. Fixing ring; 13. Groove; 14. Introducing arc surface; 15. Outtroducing arc surface; 16. Roller; 17. Fixed shaft; 18. Connecting block; 19. Compression spring; 20. Connecting external thread; 21. Connecting... 21. Threaded hole; 22. Fixed protrusion; 23. Rotating push rod; 24. Slider; 25. T-shaped slide; 26. Linkage groove; 27. Lifting plate; 28. Adjusting fixing plate; 29. ​​Adjusting fixing block; 30. Adjusting threaded hole; 31. Adjusting screw; 32. Through hole; 33. First crossbar; 34. Second crossbar; 35. Light emitting device; 36. Light receiving device; 37. Blocking rod; 38. Connecting hole; 39. Extrusion rod; 40. Elastic layer. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-8 This invention provides a technical solution for an anti-clogging structure in a potato screening device.

[0019] A clogging prevention structure for a potato sorting device includes: Main support 1; Screening barrel 2 is rotatably connected to main support 1. Screening barrel 2 is tilted. Screening chamber 3 is provided inside screening barrel 2, which passes through both ends of screening barrel 2. Several screening holes 4 are provided on the side wall of screening chamber 3. Several screening holes 4 are evenly distributed around the axis of screening barrel 2. The screening holes 4 include several screening holes 4 distributed along the axial direction of screening barrel 2. A horizontal plate 5 is fixed to the main support 1. Several telescopic devices 6 are provided on the horizontal plate 5, each corresponding to a set of screening holes 4. The horizontal plate 5 also has a first telescopic groove 7 and a second telescopic groove 8 corresponding to the telescopic devices 6. Each telescopic device 6 includes: The first telescopic rod 9 is inserted into the first telescopic groove 7; The second telescopic rod 10 is inserted into the second telescopic groove 8; Connecting rod 11, which is fixed between the first telescopic rod 9 and the second telescopic rod 10; A fixing ring 12 is fixed on the outer wall of the screening barrel 2. The outer surface of the fixing ring 12 is provided with a plurality of grooves 13. The two sides of the grooves 13 are respectively provided with an inlet arc surface 14 and an outlet arc surface 15. Roller 16 is rotatably connected to one end of the first telescopic rod 9 near the fixed ring 12, and the outer wall of roller 16 abuts against the outer surface of fixed ring 12. The elastic device has a tendency to drive the roller 16 to move towards the roller 16 side; The rotating device is used to drive the screening bucket 2 to rotate.

[0020] The rotating device drives the inclined screening bucket 2 to rotate, and the potatoes roll in the screening chamber 3. Potatoes that meet the size requirements fall through the screening hole 4, while those that do not meet the requirements are discharged from the high end of the screening bucket 2. When the screening barrel 2 rotates, the fixing ring 12 on the outer wall rotates synchronously. The elastic device drives the roller 16 to abut against the outer surface of the fixing ring 12 until the roller 16 enters the groove 13 through the guide arc surface 14. At this time, the first telescopic rod 9 moves and the second telescopic rod 10 moves synchronously through the connecting rod 11. The second telescopic rod 10 is precisely inserted into the corresponding screening hole 4. During the extension and retraction, the potatoes blocked in the screening hole 4 are directly pushed out. Then the fixing ring 12 continues to rotate, and the roller 16 moves out of the groove 13 through the guide arc surface 15 until the roller 16 abuts against the outer wall of the fixing ring 12. At this time, the second telescopic rod 10 moves out of the corresponding screening hole 4 at the same time. Similarly, as the screening barrel 2 continues to rotate, the second telescopic rod 10 will insert into and move out of each screening hole 4 one by one, thereby realizing that the potatoes blocked in the screening hole 4 are automatically pushed out during the rotation of the screening barrel 2.

[0021] The following is one embodiment of the elastic device, which includes: A fixed shaft 17 is fixed on the side of the transverse plate 5 facing away from the screening barrel 2. The connecting rod 11 is provided with a connecting hole 38 for the fixed shaft 17 to pass through. Connecting block 18 is connected to fixed shaft 17; A compression spring 19 is sleeved on the fixed shaft 17 and is positioned between the connecting block 18 and the connecting rod 11.

[0022] In the initial state, the compression spring 19 is compressed, continuously applying a pushing force towards the fixing ring 12 to the connecting rod 11 through elastic tension. This pushing force is transmitted to the first telescopic rod 9 through the connecting rod 11, and finally acts on the roller 16, ensuring that the roller 16 remains tightly pressed against the outer surface of the fixing ring 12. Only when the roller 16 moves out of the groove 13 through the lead-out arc surface 15 does the compression spring 19 drive the second telescopic rod 10 to insert into the screening hole 4. The stable elastic force is converted into the contact force between the roller 16 and the fixing ring 12, while the reciprocating drive of the second telescopic rod 10 is achieved through deformation-reset.

[0023] The fixed shaft 17 has an external thread 20 at its end away from the transverse plate 5, and the connecting block 18 has a threaded hole 21. The external thread 20 is threadedly connected to the threaded hole 21. By rotating the connecting block 18, its position on the fixed shaft 17 can be changed. If the connecting block 18 moves closer to the transverse plate 5, the initial compression of the compression spring 19 increases, the preload is strengthened, and the contact pressure of the roller 16 on the fixed ring 12 is greater, which is suitable for cleaning harder or tighter blockages. If the connecting block 18 moves away from the transverse plate 5, the spring preload decreases, and the contact pressure weakens, which is suitable for screening smaller or softer potatoes and avoiding excessive squeezing and damage to the potatoes.

[0024] A fixed protrusion 22 is fixed on the connecting rod 11. A rotating push rod 23 is hinged to the fixed protrusion 22. A slider 24 is hinged to the end of the rotating push rod 23 away from the fixed protrusion 22. A T-shaped groove 25 is provided on the transverse plate 5 for the slider 24 to be inserted. A linkage groove 26 is provided on the transverse plate 5 that communicates with the T-shaped groove 25. The opening of the linkage groove 26 faces upward. A lifting plate 27 is inserted into the linkage groove 26. An adjustment device for adjusting the height of the lifting plate 27 is provided on the transverse plate 5.

[0025] In some cases (such as when the inside of the screening tank 2 needs to be cleaned), when it is not necessary to move the second telescopic rod 10, it is only necessary to move the lifting plate 27 downward by adjusting the device. The lifting plate 27 moves all the sliders 24 downward, and the sliders 24 move the second telescopic rod 10 out of the screening hole 4 by rotating the push rod 23, so that the second telescopic rod 10 will not move back and forth.

[0026] The following is one embodiment of the adjusting device, which includes: Adjust the fixing plate 28, which is fixed on the lifting plate 27; Adjusting fixing block 29 is fixed on horizontal plate 5, and adjusting fixing block 29 is provided with adjusting threaded hole 30; Adjusting screw 31 is threadedly connected to adjusting threaded hole 30, and the upper end of adjusting screw 31 is rotatably connected to adjusting fixing plate 28.

[0027] By rotating the adjusting screw 31, the adjusting fixed plate 28 can be moved up and down, thereby realizing the up and down movement of the lifting plate 27. When the lifting plate 27 is adjusted to a higher position, the slider 24 will not contact the lifting plate 27 even when it is moved to the highest position.

[0028] The fixed protrusion 22 is provided with a through hole 32. The two ends of the transverse plate 5 are fixed with a first crossbar 33 and a second crossbar 34. A light emitting device 35 is fixed on the first crossbar 33 and a light receiving device 36 is fixed on the second crossbar 34. A blocking rod 37 is fixed on the fixed protrusion 22. When the second telescopic rod 10 is inserted into the screening hole 4, the light receiving device 36 receives the light emitted by the light emitting device 35. During the process of the second telescopic rod 10 moving out of the screening hole 4, the blocking rod 37 blocks the light emitted by the light emitting device 35.

[0029] When all the ends of the second telescopic rods 10 are inserted into the screening holes 4, the light receiving device 36 will receive the light emitted by the light emitting device 35 passing through each perforation 32, indicating that each second telescopic rod 10 is inserted in place and operating normally. If any second telescopic rod 10 is not inserted in place, the blocking rod 37 will block the light emitted by the light emitting device 35, and the light receiving device 36 will not receive the light. The light receiving device 36 will then send a signal to the alarm system, which will issue an alarm signal. Insufficient insertion may be due to the potato being stuck too tightly, or the second telescopic rod 10 not being moved out smoothly. The alarm signal can notify staff to handle the situation promptly.

[0030] The first end of the second telescopic rod 10 away from the connecting rod 11 is provided with an extrusion rod 39. The cross-sectional area of ​​the extrusion rod 39 is smaller than that of the second telescopic rod 10, so that the extrusion rod 39 has a large movement space in the screening hole 4, and can be moved out of the screening hole 4 in time.

[0031] An elastic layer 40 is fixed to the end of the extrusion rod 39. The potato is extruded through the elastic layer 40, reducing the possibility of damage to the potato.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clogging prevention structure for a potato sorting device, characterized in that, include: Main support; A screening barrel is rotatably connected to the main support. The screening barrel is tilted and has a screening cavity that extends through both ends inside. The side wall of the screening cavity is provided with a plurality of screening hole groups. The plurality of screening hole groups are evenly distributed around the axis of the screening barrel. The screening hole group includes a plurality of screening holes distributed along the axial direction of the screening barrel. A horizontal plate, fixed to the main support, is provided with several telescopic devices, each corresponding one-to-one with the number of screening holes in a set of screening holes. The horizontal plate also has a first telescopic groove and a second telescopic groove corresponding to each telescopic device. Each telescopic device includes: The first telescopic rod is inserted into the first telescopic groove; The second telescopic rod is inserted into the second telescopic groove; A connecting rod, which is fixed between the first telescopic rod and the second telescopic rod; A fixing ring is fixed to the outer wall of the screening barrel. The outer surface of the fixing ring is provided with several grooves, and the two sides of the grooves are respectively provided with an inlet arc surface and an outlet arc surface. A roller is rotatably connected to one end of the first telescopic rod near the fixed ring, and the outer wall of the roller abuts against the outer surface of the fixed ring. An elastic device, which has a tendency to drive the roller to move toward the roller side; A rotating device is used to drive the screening bucket to rotate.

2. The anti-clogging structure of a potato screening device according to claim 1, characterized in that, The elastic device includes: A fixed shaft is fixed to the side of the transverse plate facing away from the screening barrel, and the connecting rod is provided with a connecting hole for the fixed shaft to pass through; A connecting block, which is connected to the fixed shaft; A compression spring is sleeved on the fixed shaft and disposed between the connecting block and the connecting rod.

3. The anti-clogging structure of a potato screening device according to claim 2, characterized in that, The fixed shaft is provided with an external thread at one end away from the transverse plate, and the connecting block is provided with a threaded hole, wherein the external thread is threadedly connected to the threaded hole.

4. The anti-clogging structure of a potato screening device according to claim 1, characterized in that, A fixed protrusion is fixed on the connecting rod, and a rotating push rod is hinged to the fixed protrusion. A slider is hinged to the end of the rotating push rod away from the fixed protrusion. A T-shaped groove is provided on the horizontal plate for the slider to be inserted. A linkage groove communicating with the T-shaped groove is provided on the horizontal plate. The opening of the linkage groove faces upward. A lifting plate is inserted into the linkage groove. An adjustment device for adjusting the height of the lifting plate is provided on the horizontal plate.

5. The anti-clogging structure of a potato screening device according to claim 4, characterized in that, The regulating device includes: An adjusting fixing plate is fixed to the lifting plate; An adjusting fixing block is fixed to the horizontal plate, and the adjusting fixing block is provided with an adjusting threaded hole; An adjusting screw is threadedly connected to the adjusting threaded hole, and the upper end of the adjusting screw is rotatably connected to the adjusting fixing plate.

6. The anti-clogging structure of a potato screening device according to claim 5, characterized in that, The fixed protrusion has a through hole. Both ends of the transverse plate are fixed with a first crossbar and a second crossbar. A light emitting device is fixed on the first crossbar and a light receiving device is fixed on the second crossbar. A blocking rod is fixed on the fixed protrusion. When the second telescopic rod is inserted into the screening hole, the light receiving device receives the light emitted by the light emitting device. During the process of the second telescopic rod moving out of the screening hole, the blocking rod blocks the light emitted by the light emitting device.

7. The anti-clogging structure of a potato screening device according to claim 1, characterized in that, The second telescopic rod has an extrusion rod at its first end away from the connecting rod.

8. The anti-clogging structure of a potato screening device according to claim 7, characterized in that, An elastic layer is fixed to the end of the extrusion rod.

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