Rapid screening equipment and screening process for potato chip production line

Abstract

The invention relates to the technical field of French fries screening, and discloses rapid screening equipment and a screening process for a French fries production line, the rapid screening equipment comprises a rack, four guide sliding rails are fixedly connected to the top of the rack, guide rods are slidably connected to the interiors of the four guide sliding rails, the top ends of the four guide rods are jointly and fixedly connected with a vibration machine plate, and the vibration machine plate is fixedly connected with the top of the rack. And one side of the vibration machine plate is fixedly connected with a discharging plate, and a driving assembly for driving the vibration machine plate to slide along the guide sliding rails is arranged at the top of the rack. According to the rapid screening equipment and the screening process for the potato chip production line, the problems that in the prior art, under the hindering effect of qualified potato chips, part of small short strips and crushed materials cannot directly penetrate through screening holes to fall down, so that part of small short strips and crushed materials directly enter the next procedure from the discharging end, the screening effect of a vibrating screen is affected, and the screening efficiency is affected can be effectively solved. And the screening efficiency of the vibrating screen is low.

Description

Technical Field

[0001] This invention relates to the field of French fry screening technology, specifically to rapid screening equipment and screening process for French fry production lines. Background Technology

[0002] The screening process in a French fry production line is a crucial step in grading, separating, and purifying potato raw materials and French fries during processing using screening equipment. During the French fry processing, the cut potato strips are usually fed evenly into the feed end of a vibrating screen. The potato strips move forward on the vibrating screen as the screen surface vibrates back and forth. Small, short strips and fragments, because their length and diameter are smaller than the screen holes, pass through the screen and fall downwards during the vibration. Longer strips that meet the specifications continue to be conveyed forward along the screen surface, thus grading the French fries according to their size and screening out products that meet the target size. The potato strips that meet the specifications enter the next process from the discharge end.

[0003] Currently, in the process of screening French fries, the cut potato strips are evenly spread on the screen surface of a vibrating screen. Under the reciprocating vibration of the screen surface, the potato strips move forward along the screen surface. Small strips and fragments fall down through the screen holes. However, because some small strips and fragments are located above the qualified potato strips, they cannot pass directly through the screen holes and fall down due to the obstruction of the qualified potato strips. Under the driving force of the qualified potato strips, some small strips and fragments directly enter the next process from the discharge end, thus affecting the screening effect of the vibrating screen and resulting in low screening efficiency. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a rapid screening equipment and screening process for French fry production lines, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a rapid screening device for a French fry production line, comprising: The frame has four guide rails fixedly connected to its top. Guide rods are slidably connected inside each of the four guide rails. A vibrating plate is fixedly connected to the top of each of the four guide rods. A discharge plate is fixedly connected to one side of the vibrating plate. A drive assembly is provided on the top of the frame to drive the vibrating plate to slide along the guide rails. A material turning screen assembly is provided, comprising multiple material turning screen assemblies arranged equidistantly on the inner wall of the vibrating machine plate. Each material turning screen assembly includes a lifting screen, and the multiple lifting screens are slidably connected to the inner wall of the vibrating machine plate. Side plates are fixedly connected to both sides of the lifting screen, and a T-shaped long rod is fixedly connected between two side plates. A telescopic cylinder is fixedly connected to the bottom of the inner wall of the vibrating machine plate, and the bottom end of the T-shaped long rod is slidably connected to the inside of the telescopic cylinder. A T-shaped short rod is fixedly connected between two side plates, and a bottom wheel is fixedly connected to the bottom end of the T-shaped short rod.

[0006] Furthermore, the inner wall of the vibrating machine plate is fixedly connected with a feed screen and a discharge screen, with the discharge screen located on the inner wall of the vibrating machine plate near the discharge plate.

[0007] Furthermore, the drive assembly includes a drive motor, which is fixedly connected to the top of the frame. A rotating lever is rotatably connected to the top of the frame. The output end of the drive motor is fixedly connected to the rotating lever. Three push blocks are rotatably sleeved at the center of the rotating lever. Three semicircular blocks are fixedly connected to the bottom of the vibrating plate. The end of each push block away from the rotating lever is rotatably connected to one of the semicircular blocks.

[0008] Furthermore, a shaft is rotatably connected to the inner wall of the vibratory machine plate, and a plurality of equidistantly distributed first push blocks are fixedly connected to the outer circumference of the shaft, and a plurality of equidistantly distributed second push blocks are fixedly connected to the outer circumference of the shaft.

[0009] Furthermore, a plurality of the first push blocks are located on one side of the shaft, and a plurality of the second push blocks are located on the other side of the shaft.

[0010] Furthermore, both ends of the shaft pass through the vibratory machine plate and are fixedly connected to a first gear. A second gear and a gear ring are rotatably connected to the outer surface of the vibratory machine plate. The second gear is externally meshed with the first gear, and the gear ring is internally meshed with the second gear.

[0011] Furthermore, the inner wall of the toothed ring is provided with a semi-circular tooth.

[0012] Furthermore, a turntable is fixedly connected to the side of the toothed ring away from the vibratory plate, and a toggle block is rotatably connected to the side of the turntable away from the toothed ring. A toggle rod is rotatably connected to the outer circumference of the toggle block. A fixed circular block is fixedly connected to the top of the frame, and the end of the toggle rod away from the toggle block is rotatably connected to the fixed circular block.

[0013] Furthermore, the rapid screening equipment and screening process for the French fry production line includes the following steps: Step 1: The drive motor drives the rotating folding rod to rotate. The rotating folding rod drives the semi-circular block and the vibrating plate to move up and down through the push block. The vibrating plate drives the feed screen, discharge screen and multiple turning screen components to vibrate up and down. Small strips and broken materials fall down through the screen holes, while potato strips that meet the specifications cannot pass through the screen holes and are conveyed to the discharge plate. Step 2: During the upward movement of the vibrating plate, the two adjacent lifting screens are controlled to move alternately upward and then downward inside the vibrating plate. The slightly higher lifting screen pushes the potato strips on both sides of the edge to flip over. Step 3: During the downward movement of the vibrating plate, by controlling all the screen surfaces of the lifting screens to be on the same plane, the potato strips can move towards the discharge plate under the action of inertia.

[0014] The technical solution provided by this invention has the following advantages compared with the prior art: This invention utilizes a tilting screen assembly. A drive motor rotates a folding rod, which in turn drives a pusher block to move a semi-circular block and a vibrating plate in a reciprocating motion. During the upward movement of the vibrating plate, two adjacent lifting screens are positioned at different heights. The slightly higher screen pushes one end of the potato strip at its "side edges" upwards, while the other end of the potato strip contacts the lower screen. Figure 9 and Figure 10 As shown, when the height difference between the raised lifting screen and the unraised lifting screen reaches its maximum value, the raised lifting screen pushes one end of the potato strip at its "side edges" to flip the potato strip. The flipped potato strip is completely on top of the unraised lifting screen, thus flipping over the small strips and scraps that were pressed on the qualified potato strip. After flipping the potato strip, the small strips and scraps that were pressed on the qualified potato strip are transferred to the bottom of the qualified potato strip, removing the "obstruction effect" of the qualified potato strip on the small strips and scrap. The small strips and scrap can then fall directly through the screen holes, thereby enhancing the screening effect of the flipping screen assembly and improving the screening efficiency of the flipping screen assembly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the toggle lever in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fixed circular block in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the material turning screen assembly in an embodiment of the present invention; Figure 5 This is a schematic diagram of the shaft structure in an embodiment of the present invention; Figure 6 This is a schematic diagram of the right-side structure of the toothed ring in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of gear number one in an embodiment of the present invention; Figure 8 for Figure 7 A magnified structural diagram of point A in the middle.

[0017] Figure 9 This is a schematic diagram of the structure in an embodiment of the present invention, in which the lifting screen is raised by the first pusher block; Figure 10 This is a schematic diagram of the structure in an embodiment of the present invention, in which the lifting screen is raised by the second pusher block.

[0018] The labels in the diagram represent: 1. Frame; 11. Vibrating plate; 111. Guide rail; 112. Guide rod; 12. Discharge plate; 2. Tilting screen assembly; 21. Lifting screen; 22. Side plate; 23. T-shaped long rod; 24. Telescopic cylinder; 25. T-shaped short rod; 26. Bottom wheel; 27. Feed screen; 28. Discharge screen; 3. Drive motor; 31. Rotating lever; 32. Push block; 33. Semicircular block; 4. Shaft; 41. First push block; 42. Second push block; 43. Gear No. 1; 44. Gear No. 2; 45. Gear ring; 5. Turntable; 51. Actuating block; 52. Actuating rod; 53. Fixed circular block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] Example: Please see Figures 1-10 This invention provides a technical solution: a rapid screening device for a French fry production line, comprising: The frame 1 has four guide rails 111 fixedly connected to its top. Guide rods 112 are slidably connected inside the four guide rails 111. Vibrating plate 11 is fixedly connected to the top of the four guide rods 112. Discharge plate 12 is fixedly connected to one side of the vibrating plate 11. A drive assembly is provided on the top of the frame 1 to drive the vibrating plate 11 to slide along the guide rails 111. The material turning screen assembly 2 has multiple components arranged equidistantly on the inner wall of the vibrating machine plate 11. Each material turning screen assembly 2 includes a lifting screen 21. The multiple lifting screens 21 are slidably connected to the inner wall of the vibrating machine plate 11. Side plates 22 are fixedly connected to both sides of the lifting screen 21. A T-shaped long rod 23 is fixedly connected between the two side plates 22. A telescopic cylinder 24 is fixedly connected to the bottom of the inner wall of the vibrating machine plate 11. The bottom end of the T-shaped long rod 23 is slidably connected to the inside of the telescopic cylinder 24. A T-shaped short rod 25 is fixedly connected between the two side plates 22. A bottom wheel 26 is fixedly connected to the bottom end of the T-shaped short rod 25.

[0022] The inner wall of the vibrating plate 11 is fixedly connected with a feed screen 27 and a discharge screen 28, with the discharge screen 28 located on the inner wall of the vibrating plate 11 near the discharge plate 12.

[0023] The drive assembly includes a drive motor 3, which is fixedly connected to the top of the frame 1. A rotating lever 31 is rotatably connected to the top of the frame 1. The output end of the drive motor 3 is fixedly connected to the rotating lever 31. Three push blocks 32 are rotatably sleeved at the center of the rotating lever 31. Three semicircular blocks 33 are fixedly connected to the bottom of the vibrating plate 11. The end of the push block 32 away from the rotating lever 31 is rotatably connected to the semicircular block 33.

[0024] The inner wall of the vibratory plate 11 is rotatably connected to a shaft 4, and a plurality of first push blocks 41 are fixedly connected to the outer circumference of the shaft 4, and a plurality of second push blocks 42 are fixedly connected to the outer circumference of the shaft 4.

[0025] Multiple first push blocks 41 are located on one side of the shaft 4, and multiple second push blocks 42 are located on the other side of the shaft 4.

[0026] Both ends of the shaft 4 pass through the vibratory machine plate 11 and are fixedly connected to a first gear 43. A second gear 44 and a gear ring 45 are rotatably connected to the outer surface of the vibratory machine plate 11. The second gear 44 is externally meshed with the first gear 43, and the gear ring 45 is internally meshed with the second gear 44.

[0027] The inner wall of the toothed ring 45 is provided with a semi-circular tooth.

[0028] A turntable 5 is fixedly connected to the side of the toothed ring 45 away from the vibrating plate 11. A toggle block 51 is rotatably connected to the side of the turntable 5 away from the toothed ring 45. A toggle rod 52 is rotatably connected to the outer circumference of the toggle block 51. A fixed round block 53 is fixedly connected to the top of the frame 1. The end of the toggle rod 52 away from the toggle block 51 is rotatably connected to the fixed round block 53.

[0029] As a further embodiment of the present invention, a rapid screening device and screening process for a French fry production line includes the following steps: Step 1: The drive motor 3 drives the rotating folding rod 31 to rotate. The rotating folding rod 31 drives the semi-circular block 33 and the vibrating plate 11 to move up and down through the push block 32. The vibrating plate 11 drives the feed screen 27, the discharge screen 28 and multiple turning screen components 2 to vibrate up and down. Small strips and broken materials fall down through the screen holes, while potato strips that meet the specifications cannot pass through the screen holes and are conveyed to the discharge plate 12. Step 2: During the upward movement of the vibrating plate 11, the two adjacent lifting screens 21 are controlled to move alternately upward and downward inside the vibrating plate 11. The slightly higher lifting screen 21 pushes the potato strips on both sides of its edge to flip over. Step 3: During the downward movement of the vibrating plate 11, by controlling all the screen surfaces of the lifting screens 21 to be on the same plane, the potato strips can move towards the discharge plate 12 under the action of inertia.

[0030] Working principle: The sieving process for potato strips: In practical applications, by starting the drive motor 3, the drive motor 3 drives the rotating lever 31 to rotate on the top of the frame 1 through its output end, as shown below. Figure 3 As shown, the rotating lever 31 drives the bottom end of the push block 32 to rotate around the axis of the output end of the drive motor 3 through its central "bend". Under the guidance of the guide rail 111 and the guide rod 112, the three rotating push blocks 32 drive the three semi-circular blocks 33 and a vibrating plate 11 to move up and down reciprocally through their top ends. Under the reciprocating vibration of the vibrating plate 11, the vibrating plate 11 drives the feed screen 27, the discharge screen 28 and the multiple turning screen assemblies 2 on its inner wall to vibrate up and down reciprocally. Figure 1As shown, by evenly spreading potato strips on the upper surface of the feeding screen 27, the potato strips move towards the discharge plate 12 on the feeding screen 27 as the screen surface vibrates back and forth. The potato strips move sequentially along the feeding screen 27, multiple lifting screens 21 and discharge screen 28 to the discharge plate 12. Since the length and diameter of small short strips and fragments are smaller than the screen holes of the feeding screen 27, lifting screens 21 and discharge screen 28, during the vibration process, small short strips and fragments pass through the screen holes and fall downwards. Potato strips that meet the specifications cannot pass through the screen holes and are conveyed to the discharge plate 12. Potato strips that meet the specifications enter the next process from the discharge plate 12.

[0031] The upward movement process of the vibratory plate 11: In practical applications, during the upward movement of the vibratory plate 11, the vibratory plate 11 drives a shaft 4, two first gears 43, two second gears 44, and two gear rings 45 to move upward. The two gear rings 45 then drive the two turntables 5 to move upward, as shown below. Figure 2 and Figure 3 As shown, since the two fixed circular blocks 53 are fixed to the top of the frame 1, with the turntable 5 as a reference, the two fixed circular blocks 53 move downward relative to the two turntables 5. The two fixed circular blocks 53 respectively drive the bottom ends of the two actuating levers 52 to move downward, so that the two actuating levers 52 drive the two actuating blocks 51 to rotate downward around the axis of the turntable 5 through their top ends. The two actuating blocks 51 drive the two turntables 5 to rotate around the axis of the gear ring 45. The two turntables 5 drive the two gear rings 45 to rotate around their own axes, as shown. Figure 6 As shown, the clockwise rotating gear ring 45 drives the half-circle teeth on its inner wall to rotate around the axis of the first gear 43. The clockwise rotating gear ring 45 drives the second gear 44 to rotate through the half-circle teeth on its inner wall. The rotating second gear 44 drives the first gear 43 to rotate around the axis of the shaft 4. By setting the number of half-circle teeth on the inner wall of the gear ring 45 to be equal to the number of teeth on the first gear 43, the gear ring 45 can drive the first gear 43 to rotate one full circle around its own axis when it rotates half a circle around its own axis.

[0032] As a further embodiment of the present invention, during the upward movement of the vibratory plate 11, the two rotating first gears 43 drive the shaft 4 to rotate one revolution around its own axis, such as... Figure 7 As shown, the rotating shaft 4 drives multiple first push blocks 41 and multiple second push blocks 42 on its outer circumference to rotate around the axis of the shaft 4. During the rotation of the shaft 4 from zero to ninety degrees, the rotating shaft 4 pushes the bottom wheel 26, T-shaped short rod 25, side plate 22 and part of the lifting screen 21 upward through the multiple first push blocks 41. At this time, another part of the lifting screen 21 is not pushed by the shaft 4. Taking the vibrating plate 11 as a reference, the upward-moving lifting screen 21 and the stationary lifting screen 21 are distributed in an alternating pattern, as shown. Figure 9As shown, the upward-moving lifting screen 21 pushes the potato strips located at the "side edges" of the lifting screen 21 to turn them over. During the rotation of the shaft 4 from 90 degrees to 180 degrees, the first push block 41 releases its restriction on the lifting screen 21. Figure 8 As shown, under the elastic action of the elastic element inside the telescopic cylinder 24, the elastic element drives the lifting screen 21, which is lifted by the first push block 41, to move downward through the T-shaped long rod 23 until the screen surfaces of all the lifting screens 21 are on the same plane. During the process of the shaft 4 rotating from 180 degrees to 270 degrees, similarly, the rotating shaft 4 pushes the bottom wheel 26, the T-shaped short rod 25, the side plate 22, and a part of the lifting screen 21 upward through multiple second push blocks 42. At this time, another part of the lifting screen 21 is not pushed by the shaft 4. Taking the vibrating plate 11 as a reference, the upward-moving lifting screen 21 and the stationary lifting screen 21 are distributed in an alternating manner, as shown. Figure 10 As shown, the upward-moving lifting screen 21 pushes the potato strips located at the "side edges" of the lifting screen 21 to turn over. During the process of the shaft 4 rotating 270 to 360 degrees, similarly, the screen surfaces of all the lifting screens 21 are once again located on the same plane.

[0033] The downward movement process of the vibratory plate 11: In practical applications, during the downward movement of the vibrating plate 11, the vibrating plate 11 drives the shaft 4, the first gear 43, the second gear 44, and the gear ring 45 to move downward. The gear ring 45 drives the turntable 5 to move downward. With the turntable 5 as a reference, the fixed block 53 drives the bottom end of the actuating rod 52 to move upward. The actuating rod 52 drives the two actuating blocks 51 to rotate upward around the axis of the turntable 5. The actuating blocks 51 drive the turntable 5 to rotate around the axis of the gear ring 45. The turntable 5 drives the gear ring 45 to rotate around its own axis. The clockwise rotating gear ring 45 cannot drive the first gear 43 to rotate through the second gear 44, thus preventing the shaft 4 from rotating around its own axis. With the frame 1 as a reference, this ensures that the screen surfaces of all the lifting screens 21 are on the same plane and move downward, allowing the potato strips to move towards the discharge plate 12 under inertia.

[0034] As a further embodiment of the present invention, the screen surfaces of the feed screen 27, the discharge screen 28 and the multiple lifting screens 21 all maintain a fixed angle with the horizontal plane (this angle is set to 5 to 10 degrees). Under this angle setting, the potato strips are thrown up to a certain height and then fall down, forming a "jumping" state. When the vibrating plate 11 moves downward, under the action of inertia, the thrown potato strips will continue to move a distance towards the discharge plate 12 and fall onto the screen surface again. When the vibrating plate 11 moves upward again, the potato strips will be thrown up again and move towards the discharge plate 12. This cycle repeats until the potato strips enter the next process from the discharge plate 12.

[0035] By setting up a turning screen assembly 2, the drive motor 3 drives the rotating folding rod 31 to rotate. The rotating folding rod 31 drives the semi-circular block 33 and the vibrating plate 11 to move up and down reciprocally through the pushing block 32. The vibrating plate 11 drives the feeding screen 27, the discharge screen 28 and multiple turning screen assemblies 2 to vibrate up and down reciprocally. The potato strips on the feeding screen 27 move towards the discharge plate 12 as the screen surface vibrates. During the vibration, small short strips and broken materials fall down through the screen holes, while potato strips that meet the specifications cannot pass through the screen holes and are conveyed to the discharge plate 12. Potato strips that meet the specifications enter the next process from the discharge plate 12. During the upward movement of the vibrating plate 11, by setting two adjacent lifting screens 21 with different heights, the slightly higher lifting screen 21 pushes one end of the potato strip at its "side edges" upward, while the other end of the potato strip at its "side edges" contacts the lifting screen 21 that has not been lifted. Figure 9 and Figure 10 As shown, when the height difference between the raised lifting screen 21 and the unraised lifting screen 21 reaches its maximum value, the raised lifting screen 21 pushes one end of the potato strip at its "side edges" to cause the potato strip to flip. The flipped potato strip is completely on top of the unraised lifting screen 21, thus turning over the small short strips and scraps that were pressed on the qualified potato strips. After the potato strips are flipped, the small short strips and scraps that were pressed on the qualified potato strips are transferred to the bottom of the qualified potato strips, removing the "obstruction effect" of the qualified potato strips on the small short strips and scraps. The small short strips and scraps can directly pass through the screen holes and fall downwards, thereby enhancing the screening effect of the turning screen assembly 2 and improving the screening efficiency of the turning screen assembly 2.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid screening device for a French fry production line, characterized in that, include: The frame (1) has four guide rails (111) fixedly connected to its top. Guide rods (112) are slidably connected inside the four guide rails (111). Vibrating plate (11) is fixedly connected to the top of the four guide rods (112). Discharge plate (12) is fixedly connected to one side of the vibrating plate (11). A drive assembly is provided on the top of the frame (1) to drive the vibrating plate (11) to slide along the guide rails (111). The material turning screen assembly (2) is provided with multiple screens and is equidistantly arranged on the inner wall of the vibrating machine plate (11). Each screen assembly (2) includes a lifting screen (21). The multiple lifting screens (21) are slidably connected to the inner wall of the vibrating machine plate (11). Side plates (22) are fixedly connected to both sides of the lifting screen (21). A T-shaped long rod (23) is fixedly connected between the two side plates (22). A telescopic cylinder (24) is fixedly connected to the bottom of the inner wall of the vibrating machine plate (11). The bottom end of the T-shaped long rod (23) is slidably connected to the inside of the telescopic cylinder (24). A T-shaped short rod (25) is fixedly connected between the two side plates (22). A bottom wheel (26) is fixedly connected to the bottom end of the T-shaped short rod (25).

2. The rapid screening equipment for the French fry production line according to claim 1, characterized in that: The inner wall of the vibrating plate (11) is fixedly connected with a feed screen (27) and a discharge screen (28), and the discharge screen (28) is located on the side of the inner wall of the vibrating plate (11) close to the discharge plate (12).

3. The rapid screening equipment for the French fry production line according to claim 2, characterized in that: The drive assembly includes a drive motor (3), which is fixedly connected to the top of the frame (1). A rotating lever (31) is rotatably connected to the top of the frame (1). The output end of the drive motor (3) is fixedly connected to the rotating lever (31). Three push blocks (32) are rotatably sleeved at the center of the rotating lever (31). Three semicircular blocks (33) are fixedly connected to the bottom of the vibrating plate (11). The end of the push block (32) away from the rotating lever (31) is rotatably connected to the semicircular block (33).

4. The rapid screening equipment for the French fry production line according to claim 3, characterized in that: The inner wall of the vibratory plate (11) is rotatably connected to a shaft (4), and a plurality of first push blocks (41) are fixedly connected to the outer circumference of the shaft (4), and a plurality of second push blocks (42) are fixedly connected to the outer circumference of the shaft (4).

5. The rapid screening equipment for the French fry production line according to claim 4, characterized in that: Multiple first push blocks (41) are located on one side of the shaft (4), and multiple second push blocks (42) are located on the other side of the shaft (4).

6. The rapid screening equipment for the French fry production line according to claim 5, characterized in that: Both ends of the shaft (4) pass through the vibratory machine plate (11) and are fixedly connected to a first gear (43). The outer surface of the vibratory machine plate (11) is rotatably connected to a second gear (44) and a gear ring (45). The second gear (44) is externally meshed with the first gear (43), and the gear ring (45) is internally meshed with the second gear (44).

7. The rapid screening equipment for a French fry production line according to claim 6, characterized in that: The inner wall of the toothed ring (45) is provided with a half-circle of teeth.

8. The rapid screening equipment for the French fry production line according to claim 7, characterized in that: A turntable (5) is fixedly connected to the side of the toothed ring (45) away from the vibrating plate (11). A toggle block (51) is rotatably connected to the side of the turntable (5) away from the toothed ring (45). A toggle rod (52) is rotatably connected to the outer circumference of the toggle block (51). A fixed round block (53) is fixedly connected to the top of the frame (1). The end of the toggle rod (52) away from the toggle block (51) is rotatably connected to the fixed round block (53).

9. The rapid screening equipment and screening process for the French fry production line according to claim 8, characterized in that: The process includes the following steps: Step 1: By controlling the drive motor (3) to drive the rotating folding rod (31) to rotate, the rotating folding rod (31) drives the semi-circular block (33) and the vibrating plate (11) to move up and down through the push block (32). The vibrating plate (11) drives the feeding screen (27), the discharge screen (28) and multiple turning screen components (2) to vibrate up and down. Small short strips and broken materials fall down through the screen holes, while potato strips that meet the specifications cannot pass through the screen holes and are conveyed to the discharge plate (12). Step 2: During the upward movement of the vibrating plate (11), the two adjacent lifting screens (21) are controlled to move alternately upward and downward inside the vibrating plate (11). The slightly higher lifting screen (21) pushes the potato strips on both sides of its edge to flip over. Step 3: During the downward movement of the vibrating plate (11), by controlling the screen surfaces of all the lifting screens (21) to be on the same plane, the potato strips can move towards the discharge plate (12) under the action of inertia.

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