Potato cleaning and screening device for potato chip production based on visual identification

Abstract

The potato cleaning and screening device comprises a screening supporting box and a cleaning supporting box, a screening mechanism is arranged on the inner side of the screening supporting box and comprises a transverse sliding rail moving longitudinally, a clamping bottom plate is arranged at the bottom of the transverse sliding rail in a transverse sliding mode, and a temporary storage box is arranged on the side face of the clamping bottom plate; the cleaning mechanism is arranged on the inner side of the cleaning supporting box and comprises a cleaning assembly and a screening assembly, the cleaning assembly comprises two sets of main cleaning rollers, a set of auxiliary cleaning rollers are rotationally arranged at the top of the first set of main cleaning rollers, the screening assembly comprises two screening rollers which are symmetrically and rotationally arranged, and a transfer roller is arranged at the tops of the screening rollers; according to the design, through mutual cooperation of the screening mechanism and the cleaning mechanism, rotten and germinated inferior potatoes can be automatically and accurately recognized and removed, the potatoes can be efficiently subjected to size screening, and deep and efficient cleaning of the potatoes is achieved in combination with reverse scrubbing of the main cleaning roller and the auxiliary cleaning roller and flushing of the spraying frame.

Description

Technical Field

[0001] This invention relates to the field of French fry production technology, and in particular to a potato washing and screening device for French fry production based on visual recognition. Background Technology

[0002] French fries are a classic fast food snack originating from the West. They are usually made from potatoes that have been peeled, cut into strips, blanched, and then deep-fried or baked, resulting in an appealing golden-yellow appearance. The production of French fries requires strict selection of raw potatoes, which must be of regular shape, free of rotten or sprouted potatoes, and have a moderate starch content. After the qualified potatoes are washed to remove dirt, they go through the peeling process, usually using steam or friction peeling methods. Then, the peeled potatoes are sent to a cutting machine and cut into uniform strips. Finally, after a series of processes, they are made into delicious French fries.

[0003] Traditional washing and screening processes are often two separate steps, requiring independent washing and screening equipment. This makes it impossible to combine washing and screening processes, and the screening equipment is not suitable for various screening conditions, such as potatoes that are regularly shaped, free of damage, or sprouts. Furthermore, the applicable screening range for potatoes is limited and difficult to adjust. Therefore, to solve the above problems, a potato washing and screening device for French fry production based on visual recognition is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a potato washing and screening device for French fry production based on visual recognition.

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

[0006] A potato washing and screening device for French fry production based on visual recognition includes a screening support box and a cleaning support box. The screening mechanism is located inside the screening support box and includes a longitudinally moving transverse slide rail. A clamping base plate is slidably mounted on the bottom of the transverse slide rail. The vertical height of the clamping base plate is adjustable. The bottom of the clamping base plate is symmetrically and slidably equipped with clamping plates of adjustable spacing. A temporary storage box is provided on the side of the clamping base plate. The screening mechanism is used to screen rotten and sprouted potatoes.

[0007] The cleaning mechanism is located inside the cleaning support box and includes a washing component and a screening component;

[0008] The cleaning assembly includes two sets of main cleaning rollers. A set of auxiliary cleaning rollers is rotatably mounted on the top of the first set of main cleaning rollers, and a set of spray frames is mounted on the auxiliary cleaning rollers.

[0009] The screening assembly is positioned between the two sets of main cleaning rollers. The screening assembly includes two screening rollers that are symmetrically rotated. The distance between the two screening rollers is adjustable. A transfer roller is provided on the top of each screening roller. The horizontal movement of the two screening rollers drives the transfer roller to move vertically. The screening rollers and the transfer roller are used to screen potatoes of different sizes.

[0010] The above technical solution further includes:

[0011] Both sets of main cleaning rollers consist of multiple rollers. The cleaning assembly also includes symmetrically arranged main conveyor plates. The main conveyor plates are fixedly installed between the screening support box and the cleaning support box. One side of one of the main conveyor plates is fixedly connected to a secondary conveyor plate. Both sets of main cleaning rollers are rotatably connected to the secondary conveyor plate and the main conveyor plate. A first cleaning motor and a second cleaning motor are fixedly connected to the outer side of the secondary conveyor plate, respectively. The second cleaning motor is used to drive the second set of main cleaning rollers to rotate, and the first cleaning motor is used to drive the first set of main cleaning rollers to rotate. Cleaning sprockets are symmetrically fixedly connected to one end of each set of main cleaning rollers near the first cleaning motor or the second cleaning motor. A cleaning chain is sleeved between two adjacent cleaning sprockets, and the two adjacent cleaning chains are interlaced but not completely overlapped. A feed sloping plate is fixedly installed at one end of each of the two main conveyor plates.

[0012] The output end of the first cleaning motor is driven to any one of the main cleaning rollers in the first group of main cleaning rollers. The second cleaning motor is driven to any one of the main cleaning rollers in the second group of main cleaning rollers. Both ends of the two main conveyor plates are rotatably connected to push drive shafts. Push sprockets are symmetrically fixedly connected to the push drive shafts. Push chains are sleeved between the two push sprockets. Push plates are fixedly connected between the two push chains. A cleaning sprocket is also fixedly connected to the push drive shaft near the first cleaning motor. A cleaning chain is also sleeved between the cleaning sprocket on the first group of main cleaning rollers and the cleaning sprocket on the push drive shaft.

[0013] An auxiliary cleaning motor is fixedly installed on one side of the screening support box. There are multiple auxiliary cleaning rollers in a set, and each is rotatably connected to the auxiliary cleaning roller. The output end of the auxiliary cleaning motor is connected to any one of the auxiliary cleaning rollers. The auxiliary cleaning rollers are symmetrically fixedly connected to auxiliary sprockets at the end that extends to the outside of the screening support box and is away from the auxiliary cleaning motor. An auxiliary chain is sleeved between two adjacent auxiliary sprockets on the same plane, and the two adjacent auxiliary chains are interlaced but not completely overlapped. A finished product discharge plate is fixedly connected to the inner side of the screening support box at the end away from the feed inclined plate.

[0014] The screening assembly also includes two sets of symmetrically sliding adjustment bearing plates, with two adjustment bearing plates in each set. The screening roller is rotatably connected between the two adjustment bearing plates. A driven bevel gear is fixedly connected to one end of the adjustment bearing plate near one side of the two screening rollers. An active bevel gear that meshes with the driven bevel gear is rotatably connected to the adjustment bearing plate. The two active bevel gears are non-mirror image equidistantly arranged.

[0015] Fixed bearing plates are symmetrically fixedly connected to both the secondary conveyor plate and the main conveyor plate on the other side. A screening motor is fixedly installed on the fixed bearing plate near the active bevel gear. The output end of the screening motor is fixedly connected to a rotating shaft that is rotatably connected to the fixed bearing plate on that side. The adjusting bearing plate on that side slides relative to the rotating shaft. The two active bevel gears on that side slide relative to the rotating shaft. The two adjusting bearing plates on one side are slidably disposed inside the secondary conveyor plate, and the two adjusting bearing plates on the other side are slidably disposed inside the main conveyor plate. Adjusting motors are fixedly connected to both fixed bearing plates. An adjusting bidirectional threaded rod is fixedly installed at the output end of the adjusting motor. The two adjusting bearing plates on each side are threadedly connected to the positive and negative threads of the adjusting bidirectional threaded rod, and a limiting slide rod that slides relative to the two adjusting bearing plates is symmetrically fixedly connected between the two fixed bearing plates on each side.

[0016] Both sides of the screening support box are provided with clearance grooves. The transfer roller is slidably disposed inside the clearance groove. Both ends of the transfer roller extending to the outside of the screening support box are rotatably connected to driven bearing plates. The top of the two adjusting bearing plates on both sides are fixedly connected to fixed seats. A support arm is rotatably connected between the driven bearing plate and the fixed seat. A transfer motor that is driven by the transfer roller is fixedly installed on the driven bearing plate.

[0017] The screening mechanism also includes a screening motor fixedly installed on the side of the screening support box. A screening drive shaft is symmetrically rotatably connected to the top inner side of the screening support box. Screening sprockets are symmetrically fixedly connected to the outer side of the screening drive shaft. A screening chain is sleeved between the two screening sprockets. Screening slide rails are symmetrically fixedly connected to the inner side of the screening support box. A screening moving plate is slidably arranged between the two screening slide rails. The screening moving plate is fixedly installed between the two screening chains. A defective product discharge inclined plate is fixedly connected to the inner side of the screening support box. A defective product discharge port is opened at the defective product discharge inclined plate of the screening support box.

[0018] A transverse moving motor is fixedly installed on the top of the screening moving plate. A transverse moving sprocket is fixedly connected to the output end of the transverse moving motor. A transverse slide rail is fixedly installed at the bottom of the screening moving plate. A screening threaded rod is rotatably connected to the inner side of the transverse slide rail. A transverse moving sprocket is fixedly connected to the end of the screening threaded rod that extends to the outer side of the transverse slide rail and is close to the transverse moving motor. A transverse moving chain is sleeved between the two transverse moving sprockets. A transverse moving threaded plate that is threadedly connected to the screening threaded rod is slidably provided on the inner side of the transverse slide rail. A rotating base is fixedly connected to the bottom of the transverse moving threaded plate. A telescopic motor is fixedly connected to the output end of the rotating base.

[0019] The clamping base plate is fixedly installed at the output end of the telescopic motor. Two clamping fixing plates are symmetrically fixedly connected to the bottom of the clamping base plate. A clamping motor is fixedly installed on one side of one of the clamping fixing plates. A clamping bidirectional screw that is rotatably connected to the two clamping fixing plates is fixedly installed at the output end of the clamping motor. The two clamping plates are respectively threaded to the positive and negative threads of the clamping bidirectional screw. Multiple electric wheels are installed on the side of the clamping plate. Visual inspection heads are fixedly installed on both sides of the temporary storage box.

[0020] The present invention has the following beneficial effects:

[0021] 1. In this invention, the screening mechanism and cleaning components can automatically and accurately identify and remove rotten and sprouted inferior potatoes. With the set temporary storage box, it is not necessary to select and remove inferior potatoes one by one. Unified selection and removal ensure work efficiency and guarantee the quality of potato raw materials.

[0022] 2. In this invention, the cleaning mechanism, with its adjustable-gap screening rollers and the transfer rollers linked to them, can efficiently screen potatoes by size. At the same time, the reverse rubbing of the main cleaning roller and the auxiliary cleaning roller, combined with the rinsing of the spray frame, achieves deep and efficient cleaning of the potatoes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first overall side-view top view of a potato washing and screening device for French fry production based on visual recognition proposed in this invention.

[0024] Figure 2 This is a schematic diagram of the second integral side view of the top structure in this invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the screening support box and the cleaning support box in this invention;

[0026] Figure 4 This is a schematic diagram of the screening and cleaning mechanisms in this invention;

[0027] Figure 5 This is a schematic diagram of the screening mechanism in this invention;

[0028] Figure 6 This is a schematic diagram of the screening mechanism in this invention;

[0029] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point E in the middle;

[0030] Figure 8 This is a first top view of the cleaning mechanism in this invention;

[0031] Figure 9 This is a schematic diagram of the second top view of the cleaning mechanism in this invention;

[0032] Figure 10 for Figure 8 Enlarged schematic diagram of the structure at point A in the middle;

[0033] Figure 11 for Figure 8 Enlarged schematic diagram of the structure at point B;

[0034] Figure 12 for Figure 10 Enlarged schematic diagram of the structure at point C;

[0035] Figure 13 for Figure 9 Enlarged schematic diagram of the structure at point D;

[0036] Figure 14 This is a schematic diagram of the main conveyor plate and the auxiliary conveyor plate in this invention.

[0037] In the diagram: 1. Screening support box; 2. Cleaning support box; 3. Feeding inclined plate; 10. Screening motor; 11. Defective product discharge inclined plate; 12. Defective product discharge port; 13. Screening drive shaft; 14. Screening chain; 15. Screening sprocket; 16. Screening slide rail; 17. Screening moving plate; 18. Transverse slide rail; 19. Screening threaded rod; 120. Transverse moving motor; 121. Transverse moving sprocket; 122. Transverse moving chain; 123. Transverse moving threaded plate; 124. Rotating base; 125. Telescopic motor; 126. Clamping base plate; 127. Clamping motor; 128. Temporary storage box; 129. Clamping plate; 130. Electric wheel; 131. Clamping fixing plate; 132. Clamping bidirectional screw; 133. Vision inspection head; 20. First cleaning motor; 200. Second cleaning motor; 21. 21. Finished product discharge plate; 22. Auxiliary cleaning motor; 23. Main conveyor plate; 24. Secondary conveyor plate; 25. Main cleaning roller; 26. Push drive shaft; 27. Push sprocket; 28. Push chain; 29. ​​Cleaning chain; 210. Auxiliary cleaning roller; 211. Push plate; 212. Spray frame; 213. Auxiliary chain; 214. Auxiliary sprocket; 215. Screening motor; 216. Adjusting bearing plate; 217. Driven bearing plate; 218. Transfer roller; 219. Transfer motor; 220. Fixed bearing plate; 221. Limiting slide bar; 222. Adjusting bidirectional threaded rod; 223. Rotating shaft; 224. Driving bevel gear; 225. Driven bevel gear; 226. Fixed seat; 227. Adjusting motor; 228. Support arm; 229. Cleaning sprocket; 230. Screening roller; 231. Relief groove. Detailed Implementation

[0038] 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.

[0039] Example 1

[0040] like Figures 1-14 As shown, the present invention proposes a potato washing and screening device for French fry production based on visual recognition, including a screening support box 1 and a cleaning support box 2. The screening mechanism is set inside the screening support box 1 and includes a longitudinally movable transverse slide rail 18. A clamping base plate 126 is slidably arranged at the bottom of the transverse slide rail 18. The vertical height of the clamping base plate 126 is adjustable. A clamping plate 129 with adjustable spacing is symmetrically slidably arranged at the bottom of the clamping base plate 126. A temporary storage box 128 is arranged on the side of the clamping base plate 126. The screening mechanism is used to screen rotten and sprouted potatoes.

[0041] The cleaning mechanism is located inside the cleaning support box 2, and includes a washing component and a screening component;

[0042] The cleaning assembly includes two sets of main cleaning rollers 25. An auxiliary cleaning roller 210 is rotatably mounted on the top of the first set of main cleaning rollers 25. A set of spray frames 212 is mounted on the auxiliary cleaning roller 210.

[0043] The screening assembly is set between two sets of main cleaning rollers 25. The screening assembly includes two screening rollers 230 that are symmetrically rotated. The distance between the two screening rollers 230 is adjustable. A transfer roller 218 is set on the top of the screening rollers 230. The horizontal movement of the two screening rollers 230 drives the transfer roller 218 to move vertically. The screening rollers 230 and the transfer roller 218 are used to screen potatoes of different sizes.

[0044] This design first pre-cleans the potatoes using a cleaning component, then uses a screening mechanism to remove rotten and sprouted potatoes, followed by a sieving component to remove smaller potatoes, and finally uses a cleaning component for deep cleaning.

[0045] Example 2

[0046] like Figure 8 , Figure 9 , Figure 13 and Figure 14 As shown, based on Embodiment 1, in this embodiment, there are multiple sets of two main cleaning rollers 25. The cleaning assembly also includes symmetrically arranged main conveyor plates 23. The main conveyor plates 23 are fixedly installed between the screening support box 1 and the cleaning support box 2. One side of one of the main conveyor plates 23 is fixedly connected to a secondary conveyor plate 24. Both sets of main cleaning rollers 25 are rotatably connected to the secondary conveyor plate 24 and the main conveyor plate 23. The outer side of the secondary conveyor plate 24 is fixedly connected to a first cleaning motor 20 and a second cleaning motor 200, respectively. The second cleaning motor 200 is used to drive the second set of main cleaning rollers 25 to rotate, and the first cleaning motor 20 is used to drive the first set of main cleaning rollers 25 to rotate. The ends of the two sets of main cleaning rollers 25 near the first cleaning motor 20 or the second cleaning motor 200 are symmetrically fixedly connected to cleaning sprockets 229. A cleaning chain 29 is sleeved between two adjacent cleaning sprockets 229, and the two adjacent cleaning chains 29 are interlaced but not completely overlapped. One end of each of the two main conveyor plates 23 is fixedly installed with a feed inclined plate 3.

[0047] First, a nozzle (marked in the figure) is installed inside the screening support box 1. Since some rotten parts of potatoes are easily covered by mud and are difficult to identify, the potatoes need to be pre-washed. During the pre-washing process, the staff first starts the second cleaning motor 200. The first cleaning motor 20 and the second cleaning motor 200 are controlled by PLC to rotate independently. The second cleaning motor 200 drives one of the rollers in the second set of main cleaning rollers 25 connected to it to rotate. Each main cleaning roller 25 is fixedly installed with a cleaning sprocket 229 at its end, and a cleaning chain 29 is sleeved between the cleaning sprockets 229. Therefore, the power of the motor can be transmitted, driving each main cleaning roller 25 to rotate synchronously.

[0048] The output end of the second cleaning motor 200 is connected to any one of the main cleaning rollers 25 in the second group of main cleaning rollers 25. Both ends of the two main conveyor plates 23 are rotatably connected to push drive shafts 26. Push sprockets 27 are symmetrically fixedly connected to the push drive shafts 26. Push chains 28 are sleeved between the two push sprockets 27. Push plates 211 are fixedly connected between the two push chains 28. A cleaning sprocket 229 is also fixedly connected to the push drive shaft 26 near the first cleaning motor 20. A cleaning chain 29 is also sleeved between the cleaning sprocket 229 on the first group of main cleaning rollers 25 and the cleaning sprocket 229 on the push drive shaft 26.

[0049] An auxiliary cleaning motor 22 is fixedly installed on one side of the screening support box 1. There are multiple auxiliary cleaning rollers 210, and each is rotatably connected to the auxiliary cleaning roller 210. The output end of the auxiliary cleaning motor 22 is connected to any auxiliary cleaning roller 210. The auxiliary cleaning rollers 210 are symmetrically fixedly connected to the end of the auxiliary cleaning rollers 210 that extends to the outside of the screening support box 1 and is away from the auxiliary cleaning motor 22. An auxiliary chain 213 is sleeved between two adjacent auxiliary sprockets 214 located on the same plane, and the two adjacent auxiliary chains 213 are interlaced but not completely overlapped. A finished product discharge plate 21 is fixedly connected to the inner side of the screening support box 2 away from the feed inclined plate 3.

[0050] Furthermore, during the pre-cleaning stage, the first cleaning motor 20 is not in operation, driving the second cleaning motor 200 to rotate. The speed of the second cleaning motor 200 should be appropriately increased. The worker slides the potatoes from the feed inclined plate 3 into the upper part of the second set of main cleaning rollers 25. The potatoes tumble and move forward as the second set of main cleaning rollers 25 rotates, and are distributed between the two main cleaning rollers 25. Since the two main cleaning rollers 25 rotate in the same direction and at a relatively high speed, there is overlap between the potatoes. Due to the high speed, the potatoes will rotate between the two main cleaning rollers 25 and will not move forward. At the same time, in conjunction with the nozzles (not shown in the figure) inside the screening support box 1, the protrusions or friction on the surface of the main cleaning rollers 25 effectively scrub the dirt on the surface of the potatoes, achieving the purpose of pre-cleaning.

[0051] Furthermore, after the pre-cleaning is completed, the vision inspection head 133 on the screening mechanism performs alternating horizontal and vertical scans to identify problematic potatoes. These problematic potatoes are then picked up and removed. After rotten or sprouted potatoes are removed, the potatoes are sieved according to size using a pre-set sieving component. Following this process, a final, precise cleaning is performed.

[0052] Furthermore, at this time, the first cleaning motor 20 and the auxiliary cleaning motor 22 are started. At this time, the speed of the first cleaning motor 20 and the auxiliary cleaning motor 22 should not be too fast. While the first cleaning motor 20 drives the first set of main cleaning rollers 25 to rotate, a cleaning sprocket 229 is also sleeved and connected between the cleaning chain 29 on the main cleaning roller 25 and the cleaning chain 29 on the push drive shaft 26. Therefore, through the rotation of the push drive shaft 26, the push chain 28 is driven to move through the push sprocket 27. The push plate 211 fixed between the two push chains 28 moves accordingly, and pushes the pile of potatoes smoothly between the auxiliary cleaning roller 210 and the first set of main cleaning rollers 25 to ensure smooth potato transfer.

[0053] Furthermore, the auxiliary cleaning motor 22 rotates in the opposite direction to the first cleaning motor 20, but at the same speed. The auxiliary cleaning motor 22 drives all the auxiliary cleaning rollers 210 to rotate through the auxiliary sprocket 214 and the auxiliary chain 213. The auxiliary cleaning rollers 210 are positioned directly above the two rollers of the first set of main cleaning rollers 25. The rotation direction of these auxiliary cleaning rollers 210 is opposite to that of the main cleaning rollers 25 below, thereby creating an effect of clamping and rubbing the potatoes from above and below, greatly enhancing the cleaning power. The spray frame 212 installed on the auxiliary cleaning rollers 210 sprays high-pressure water downwards, rinsing the potatoes while they are being rubbed, achieving deep cleaning.

[0054] Furthermore, finally, the cleaned potatoes that meet the size requirements are discharged from the end of the first set of main cleaning rollers 25, slide out of the equipment via the finished product discharge plate 21, and enter the next production process.

[0055] Example 3

[0056] like Figure 10 and Figure 12As shown, based on the above embodiments, in this embodiment, the screening assembly further includes two sets of symmetrically sliding adjusting bearing plates 216, and each set of adjusting bearing plates 216 has two plates. The screening roller 230 is rotatably connected between the two adjusting bearing plates 216. One end of each of the two screening rollers 230 near one side of the adjusting bearing plate 216 is fixedly connected to a driven bevel gear 225. The adjusting bearing plate 216 is rotatably connected to a driving bevel gear 224 that meshes with the driven bevel gear 225. The two driving bevel gears 224 are non-mirror image equidistantly arranged, and the two driving bevel gears 224 face the same direction.

[0057] Fixed bearing plates 220 are symmetrically fixedly connected to both the auxiliary conveyor plate 24 and the main conveyor plate 23 on the other side. A screening motor 215 is fixedly installed on the fixed bearing plate 220 near the driving bevel gear 224. The output end of the screening motor 215 is fixedly connected to a rotating shaft 223 that is rotatably connected to the fixed bearing plate 220 on that side. The adjusting bearing plate 216 on that side slides relative to the rotating shaft 223. The two driving bevel gears 224 on that side slide relative to the rotating shaft 223. The two adjusting bearing plates 216 on one side are slidably set. On the inner side of the auxiliary conveyor plate 24, two adjusting bearing plates 216 on the other side are slidably disposed on the inner side of the main conveyor plate 23. Adjusting motors 227 are fixedly connected to the fixed bearing plates 220 on both sides. Adjusting bidirectional threaded rods 222 are fixedly installed at the output end of the adjusting motors 227. The two adjusting bearing plates 216 on each side are respectively threaded to the positive and negative threads of the adjusting bidirectional threaded rods 222. Limiting slide rods 221 that slide relative to the two adjusting bearing plates 216 are symmetrically fixedly connected between the two fixed bearing plates 220 on each side.

[0058] Both sides of the screening support box 1 are provided with clearance grooves 231. The transfer roller 218 is slidably disposed inside the clearance groove 231. Both ends of the transfer roller 218 extending to the outside of the screening support box 1 are rotatably connected to driven bearing plates 217. The top of the two adjusting bearing plates 216 on both sides are fixedly connected to fixed seats 226. A support arm 228 is rotatably connected between the driven bearing plate 217 and the fixed seat 226. A transfer motor 219 that is driven by the transfer roller 218 is fixedly installed on the driven bearing plate 217.

[0059] like Figure 14 As shown, a pair of fixed bearing plates 220 are fixed on the auxiliary conveyor plate 24, and a pair of fixed bearing plates 220 are fixed on the main conveyor plate 23 on the other side away from it. The screening motor 215 exists only on one side and is fixed only on the auxiliary conveyor plate 24. The adjusting motor 227 exists on both sides and rotates synchronously controlled by PLC to adjust the distance between the two adjusting bearing plates 216.

[0060] Furthermore, after the pre-cleaning is completed, the speed of the second cleaning motor 200 is reduced so that the potatoes can move. Since the potatoes were already distributed on the second set of main cleaning rollers 25, there will be no blockage during the movement. At the same time, after the pre-cleaning is completed, the first cleaning motor 20 can be started, and the speed of the first cleaning motor 20 is relatively slow. Meanwhile, the first cleaning motor 20 drives the pusher plate 211 to move and push the potatoes.

[0061] Furthermore, according to the required dimensions, the adjusting motors 227 on both sides start synchronously under the control of the PLC. The adjusting motors 227 drive the adjusting bidirectional threaded rod 222 to rotate. Therefore, when the adjusting bidirectional threaded rod 222 rotates, the two adjusting bearing plates 216 on each side will move synchronously towards or away from each other. During this process, the adjusting bearing plates 216 slide along the limit slide rod 221 at the same time. The bearings at both ends of the screening roller 230 are respectively installed on the two adjusting bearing plates 216. Therefore, the movement of the adjusting bearing plates 216 directly drives the two screening rollers 230 to move closer or further away synchronously, thereby realizing the stepless adjustment of the screening gap.

[0062] Furthermore, during the screening process, the screening motor 215 starts, and its output drives the rotating shaft 223 to rotate. Since the two driving bevel gears 224 are connected to the rotating shaft 223 by a keyway limit sliding connection, the rotation of the rotating shaft 223 will synchronously drive the two driving bevel gears 224 to rotate together. The adjusting bearing plate 216 can slide on the rotating shaft 223. The two driving bevel gears 224 are oriented in the same direction and are non-mirror equidistantly set to ensure that the two screening rollers 230 rotate in the same direction. The rotation of the driving bevel gears 224 drives the driven bevel gear 225 to rotate, thereby driving the two screening rollers 230 to rotate in the same direction, generating forward conveying power for the potatoes falling on their surface. The potatoes roll and move forward on the screening rollers 230.

[0063] Furthermore, the transfer motor 219 starts and drives the transfer roller 218 to rotate. Potatoes of normal size are conveyed from one screening roller 230 to the transfer roller 218, and then through another screening roller 230 to be transferred to the first main cleaning roller 25 for deep cleaning. Small potatoes will pass through the gap between the two screening rollers 230 and fall into the cleaning support box 2 to be collected.

[0064] Furthermore, the adjustment of the screening roller 230 spacing is automatically changed by a linkage mechanism to change the height of the transfer roller 218. Specifically, fixed seats 226 are fixedly connected to the top of the adjusting bearing plates 216 on both sides, and driven bearing plates 217 are provided at both ends of the transfer roller 218. The driven bearing plates 217 are hinged to the fixed seats 226 on the same side through the support arms 228. When the adjusting bearing plates 216 move, they will drive the fixed seats 226 to move together, thereby pushing and pulling the driven bearing plates 217 through the support arms 228, forcing the transfer roller 218 to move vertically up and down along the clearance grooves 231 opened on both sides of the screening support box 1. This ensures that no matter what width the screening gap is adjusted to, the transfer roller 218 can always automatically maintain an optimal receiving height, smoothly guiding the potatoes from upstream to the first main cleaning roller 25, effectively avoiding material blockage or rolling problems caused by height mismatch.

[0065] Example 4

[0066] like Figures 1-7 As shown, based on the above embodiments, in this embodiment, the screening mechanism further includes a screening motor 10 fixedly installed on the side of the screening support box 1, a screening drive shaft 13 symmetrically rotatably connected to the top inner side of the screening support box 1, a screening sprocket 15 symmetrically fixedly connected to the outer side of the screening drive shaft 13, a screening chain 14 sleeved between the two screening sprockets 15, a screening slide rail 16 symmetrically fixedly connected to the inner side of the screening support box 1, a screening moving plate 17 slidably arranged between the two screening slide rails 16, a screening moving plate 17 fixedly installed between the two screening chains 14, a defect discharge inclined plate 11 fixedly connected to the inner side of the screening support box 1, and a defect discharge port 12 opened at the defect discharge inclined plate 11 in the screening support box 1.

[0067] A transverse moving motor 120 is fixedly installed on the top of the screening moving plate 17. A transverse moving sprocket 121 is fixedly connected to the output end of the transverse moving motor 120. A transverse slide rail 18 is fixedly installed on the bottom of the screening moving plate 17. A screening threaded rod 19 is rotatably connected to the inner side of the transverse slide rail 18. A transverse moving sprocket 121 is fixedly connected to the end of the screening threaded rod 19 that extends to the outer side of the transverse slide rail 18 and is close to the transverse moving motor 120. A transverse moving chain 122 is sleeved between the two transverse moving sprockets 121. A transverse moving threaded plate 123 that is threadedly connected to the screening threaded rod 19 is slidably provided on the inner side of the transverse slide rail 18. A rotating base 124 is fixedly connected to the bottom of the transverse moving threaded plate 123. A telescopic motor 125 is fixedly connected to the output end of the rotating base 124.

[0068] The clamping base plate 126 is fixedly installed at the output end of the telescopic motor 125. Two clamping fixing plates 131 are symmetrically fixedly connected to the bottom of the clamping base plate 126. A clamping motor 127 is fixedly installed on one side of one of the clamping fixing plates 131. A clamping bidirectional screw 132 that is rotatably connected to the two clamping fixing plates 131 is fixedly installed at the output end of the clamping motor 127. Two clamping plates 129 are respectively threaded to the positive and negative threads of the clamping bidirectional screw 132. Multiple electric wheels 130 are installed on the side of the clamping plate 129. Visual inspection heads 133 are fixedly installed on both sides of the temporary storage box 128.

[0069] Furthermore, as the potatoes are distributed one by one on the second set of main cleaning rollers 25, the potatoes are in a state of rotation. Since the second set of main cleaning rollers 25 rotates at a relatively high speed, the potatoes will not move forward. The screening motor 10 starts, drives the screening transmission shaft 13 to rotate, and drives the screening chain 14 to move. The movement of the screening chain 14 will be converted into the longitudinal movement of the screening moving plate 17 along the screening slide rail 16. At the same time, the transverse movement motor 120 starts, and its output end drives a transverse movement sprocket 121 to rotate, thereby driving the screening threaded rod 19 to rotate inside the transverse slide rail 18. The transverse movement threaded plate 123, which is threadedly connected to the screening threaded rod 19, then slides laterally along the transverse slide rail 18 to adjust the transverse position and ensure that the clamping system is accurately aligned with the target potato.

[0070] Furthermore, the vision inspection heads 133 fixed on both sides of the temporary storage box 128 will scan the potatoes located below them. When rotten or sprouted inferior potatoes are detected, the clamping base plate 126 below the screening moving plate 17 will be moved to directly above the target potato. Then, after the position is aligned, the telescopic motor 125 will be started, and its output end will extend downward to push the clamping base plate 126 fixedly connected to it to descend until the clamping plate 129 reaches the appropriate height on both sides of the potato.

[0071] Furthermore, at this time, the clamping motor 127 starts and drives the clamping bidirectional screw 132 to rotate. Since the two clamping plates 129 are respectively threaded to the positive and negative threads of the clamping bidirectional screw 132, when the clamping bidirectional screw 132 rotates, the two clamping plates 129 will move synchronously towards each other, thereby clamping the target potato. During or after clamping, multiple electric wheels 130 installed on the side of the clamping plate 129 can rotate, driving the clamped potato to move towards the inside of the temporary storage box 128.

[0072] Furthermore, when the potatoes are located at the two edges, the rotating base 124 is driven to rotate, causing the temporary storage box 128 and the two clamping plates 129 to rotate 180° for easy clamping. After the visual inspection head 133 confirms that no inferior products are identified, the telescopic motor 125 retracts and lifts the temporary storage box 128. Then, the screening motor 10 drives the screening moving plate 17 and the transverse moving threaded plate 123 to move, transporting the inferior potatoes to the top of the defective product discharge inclined plate 11. The bottom of the temporary storage box 128 is lifted and opened, allowing the potatoes to fall onto the defective product discharge inclined plate 11 and finally be discharged from the defective product discharge port 12 opened on the screening support box 1, completing a cycle of identifying and rejecting inferior potatoes. After this batch of potatoes has been cleaned and screened, the next batch of operations will be carried out.

[0073] 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 potato washing and screening device for French fry production based on visual recognition, comprising a screening support box (1) and a cleaning support box (2), characterized in that, The screening mechanism is set inside the screening support box (1) and includes a longitudinally movable transverse slide rail (18). A clamping base plate (126) is slidably arranged at the bottom of the transverse slide rail (18). The vertical height of the clamping base plate (126) is adjustable. A clamping plate (129) with adjustable spacing is symmetrically slidably arranged at the bottom of the clamping base plate (126). A temporary storage box (128) is arranged on the side of the clamping base plate (126). The screening mechanism is used to screen rotten and sprouted potatoes. The cleaning mechanism is set inside the cleaning support box (2) and includes a cleaning component and a screening component. The cleaning component includes two sets of main cleaning rollers (25). The top of the first set of main cleaning rollers (25) is rotatably equipped with a set of auxiliary cleaning rollers (210). A set of spray racks (212) is provided on the auxiliary cleaning rollers (210). The screening assembly is set between the two sets of main cleaning rollers (25). The screening assembly includes two screening rollers (230) that are symmetrically rotated. The distance between the two screening rollers (230) is adjustable. A transfer roller (218) is set on the top of the screening rollers (230). The horizontal movement of the two screening rollers (230) drives the transfer roller (218) to move vertically. The screening rollers (230) and the transfer roller (218) are used to screen potatoes of different sizes.

2. The potato washing and screening device for French fry production based on visual recognition according to claim 1, characterized in that, Both sets of main cleaning rollers (25) are multiple. The cleaning assembly also includes symmetrically arranged main conveyor plates (23). The main conveyor plates (23) are fixedly installed between the screening support box (1) and the cleaning support box (2). A secondary conveyor plate (24) is fixedly connected to one side of one of the main conveyor plates (23). Both sets of main cleaning rollers (25) are rotatably connected to the secondary conveyor plate (24) and the main conveyor plate (23). A first cleaning motor (20) and a second cleaning motor are fixedly connected to the outer side of the secondary conveyor plate (24). (200), the second cleaning motor (200) is used to drive the second set of main cleaning rollers (25) to rotate, the first cleaning motor (20) is used to drive the first set of main cleaning rollers (25) to rotate, and the two sets of main cleaning rollers (25) are symmetrically fixedly connected to one end of the first cleaning motor (20) or the second cleaning motor (200) with cleaning sprockets (229), and cleaning chains (29) are sleeved and connected between two adjacent cleaning sprockets (229), and the two adjacent cleaning chains (29) are interlaced but not completely overlapped.

3. The potato washing and screening device for French fry production based on visual recognition according to claim 2, characterized in that, The output end of the first cleaning motor (20) is driven to any one of the main cleaning rollers (25) in the first group of main cleaning rollers (25), and the second cleaning motor (200) is driven to any one of the main cleaning rollers (25) in the second group of main cleaning rollers (25). Both ends of the two main conveyor plates (23) are rotatably connected to push drive shafts (26). Push sprockets (27) are symmetrically fixedly connected to the push drive shafts (26). Push chains (28) are sleeved between the two push sprockets (27). Push plates (211) are fixedly connected between the two push chains (28). A cleaning sprocket (229) is also fixedly connected to the push drive shaft (26) near the first cleaning motor (20). A cleaning chain (29) is also sleeved between the cleaning sprocket (229) on the first group of main cleaning rollers (25) and the cleaning sprocket (229) on the push drive shaft (26).

4. The potato washing and screening device for French fry production based on visual recognition according to claim 1, characterized in that, An auxiliary cleaning motor (22) is fixedly installed on one side of the screening support box (1). There are multiple auxiliary cleaning rollers (210) in a set, and they are all rotatably connected to each other. The output end of the auxiliary cleaning motor (22) is connected to any one of the auxiliary cleaning rollers (210). The auxiliary cleaning rollers (210) extending to the outside of the screening support box (1) and away from the auxiliary cleaning motor (22) are symmetrically fixedly connected to auxiliary sprockets (214). An auxiliary chain (213) is sleeved between two adjacent auxiliary sprockets (214) located on the same plane, and the two adjacent auxiliary chains (213) are interlaced but not completely overlapped.

5. A potato washing and screening device for French fry production based on visual recognition according to claim 2, characterized in that, The screening assembly also includes two sets of symmetrically sliding adjustment bearing plates (216), and each set of adjustment bearing plates (216) consists of two. The screening roller (230) is rotatably connected between the two adjustment bearing plates (216). One end of each of the two screening rollers (230) near one of the adjustment bearing plates (216) is fixedly connected to a driven bevel gear (225). The adjustment bearing plate (216) is rotatably connected to a driving bevel gear (224) that meshes with the driven bevel gear (225). The two driving bevel gears (224) are non-mirror image equidistantly arranged.

6. A potato washing and screening device for French fry production based on visual recognition according to claim 5, characterized in that, Fixed bearing plates (220) are symmetrically fixedly connected to both the secondary conveyor plate (24) and the main conveyor plate (23) on the other side. A screening motor (215) is fixedly installed on the fixed bearing plate (220) near the active bevel gear (224). The output end of the screening motor (215) is fixedly connected to a rotating shaft (223) that is rotatably connected to the fixed bearing plate (220) on that side. The adjusting bearing plate (216) on that side slides relative to the rotating shaft (223). The two active bevel gears (224) on that side slide relative to the rotating shaft (223). The two adjusting bearing plates (216) on one side slide relative to the rotating shaft (223). The two adjusting bearing plates (216) on the other side are slidably set inside the secondary conveyor plate (24), and the two adjusting bearing plates (216) on the other side are slidably set inside the main conveyor plate (23). The two fixed bearing plates (220) on both sides are fixedly connected to the adjusting motor (227). The output end of the adjusting motor (227) is fixedly installed with the adjusting bidirectional threaded rod (222). The two adjusting bearing plates (216) on each side are respectively threaded to the positive and negative threads of the adjusting bidirectional threaded rod (222), and the two fixed bearing plates (220) on each side are symmetrically fixedly connected with the limiting slide rod (221) that slides relative to the two adjusting bearing plates (216).

7. A potato washing and screening device for French fry production based on visual recognition according to claim 6, characterized in that, The screening support box (1) has clearance grooves (231) through both sides. The transfer roller (218) is slidably disposed inside the clearance groove (231). Both ends of the transfer roller (218) extending to the outside of the screening support box (1) are rotatably connected to driven bearing plates (217). The tops of the two adjusting bearing plates (216) on both sides are fixedly connected to fixed seats (226). A support arm (228) is rotatably connected between the driven bearing plate (217) and the fixed seat (226). A transfer motor (219) that is driven by the transfer roller (218) is fixedly installed on the driven bearing plate (217).

8. A potato washing and screening device for French fry production based on visual recognition according to claim 1, characterized in that, The screening mechanism also includes a screening motor (10) fixedly installed on the side of the screening support box (1). A screening drive shaft (13) is symmetrically rotatably connected to the top inner side of the screening support box (1). A screening sprocket (15) is symmetrically fixedly connected to the outer side of the screening drive shaft (13). A screening chain (14) is sleeved between the two screening sprockets (15). A screening slide rail (16) is symmetrically fixedly connected to the inner side of the screening support box (1). A screening moving plate (17) is slidably arranged between the two screening slide rails (16). The screening moving plate (17) is fixedly installed between the two screening chains (14).

9. A potato washing and screening device for French fry production based on visual recognition as described in claim 8, characterized in that, A transverse moving motor (120) is fixedly installed on the top of the screening moving plate (17). A transverse moving sprocket (121) is fixedly connected to the output end of the transverse moving motor (120). A transverse slide rail (18) is fixedly installed on the bottom of the screening moving plate (17). A screening threaded rod (19) is rotatably connected to the inner side of the transverse slide rail (18). A transverse moving sprocket (121) is fixedly connected to the end of the screening threaded rod (19) that extends to the outside of the transverse slide rail (18) and is close to the transverse moving motor (120). A transverse moving chain (122) is sleeved between the two transverse moving sprockets (121). A transverse moving threaded plate (123) is slidably provided on the inner side of the transverse slide rail (18) and threadedly connected to the screening threaded rod (19). A rotating base (124) is fixedly connected to the bottom of the transverse moving threaded plate (123). A telescopic motor (125) is fixedly connected to the output end of the rotating base (124).

10. A potato washing and screening device for French fry production based on visual recognition according to claim 9, characterized in that, The clamping base plate (126) is fixedly installed at the output end of the telescopic motor (125). Two clamping fixing plates (131) are symmetrically fixedly connected to the bottom of the clamping base plate (126). A clamping motor (127) is fixedly installed on one side of one of the clamping fixing plates (131). A clamping bidirectional screw (132) that is rotatably connected to the two clamping fixing plates (131) is fixedly installed at the output end of the clamping motor (127). The two clamping plates (129) are respectively threaded to the positive and negative threads of the clamping bidirectional screw (132). Multiple electric wheels (130) are installed on the side of the clamping plate (129). Visual inspection heads (133) are fixedly installed on both sides of the temporary storage box (128).

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