Potato rotary cutting device with root full cutting function and use method thereof
By using an air pump to push the potato root into the blade and combining it with a rotating mechanism, the problem of incomplete root removal and poor radial stability in potato rotary cutting equipment has been solved, achieving efficient full root cutting and improved material utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-28
AI Technical Summary
Existing potato rotary cutting equipment suffers from unstable clamping when cutting potato roots, resulting in residual root ends and significant material waste. Furthermore, potatoes exhibit poor radial stability during high-speed rotation, making them prone to breakage.
The system uses an air pump to output compressed airflow to push the potato root into the blade, and combines it with a rotating mechanism to complete the thorough cutting. A lifting mechanism and a stabilizing mechanism ensure the potato is stably clamped and positioned during the cutting process.
It achieves complete cutting of potato roots, improves material utilization, reduces defect rate, and has a simple structure and is safe and convenient to operate.
Smart Images

Figure CN122463246A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a potato rotary cutter, specifically to a potato rotary cutter device with root-cutting function and its usage method. Background Technology
[0002] Spiral potato chips are a type of snack food processed using a specific spiral cutting process. Due to their unique spiral shape and large surface area, they have a good taste and flavor absorption capacity, and have broad market demand and development prospects. They are especially suitable for mass production and sales in scenarios such as street vendors and small food processing shops.
[0003] Currently, existing potato rotary cutting equipment still has the following technical limitations in practical production applications: First, the root is not completely removed, resulting in significant material waste. Potatoes are naturally irregular in shape, with hard, uneven root ends or sunken buds at both ends. When the rotary cutting device of existing equipment cuts to this part, it often leaves "residual root ends" due to unstable clamping, causing significant material waste and production capacity loss. Second, the radial stability of potatoes is poor during high-speed rotation. During high-speed centrifugal rotary cutting, potatoes are subjected to the combined effects of centrifugal force and blade cutting force, making them prone to radial displacement and jumping. This often leads to a high breakage rate and irregular shape of the finished product.
[0004] The purpose of this invention is to design and manufacture a potato rotary cutter with a root-cutting function that can adaptively and stably clamp the potato, achieve complete root cutting, and thoroughly eliminate residual roots, as well as its usage method. This significantly improves the material utilization rate and standardization of the finished product, filling the market gap for equipment suitable for the batch processing needs of small businesses. It can be widely applied to the practical needs of street vendors, small food processing shops, and other similar scenarios. Summary of the Invention
[0005] To achieve the above-mentioned objectives, this invention discloses a potato rotary cutter with root-cutting function and its usage method. The compressed airflow output by the air pump pushes the remaining root of the potato downward into the blade, and the root is completely cut under the drive of the rotating mechanism. It has the advantages of high raw material utilization, simple and stable structure, simple and safe operation, economical and practical, and convenient mobility.
[0006] The technical solution adopted in this invention is as follows:
[0007] A potato rotary slicer with root-cutting function includes: a support mechanism, a lifting mechanism, a rotating mechanism, a blade holder mechanism, and a stabilizing mechanism; the lifting mechanism is disposed on the column side of the support mechanism; the rotating mechanism is disposed in the middle of the column of the support mechanism; the blade holder mechanism is coaxially disposed at the center of the rotating mechanism, and the blade holder mechanism is fixedly connected to the rotating mechanism to rotate synchronously with it; the stabilizing mechanism is circumferentially disposed above the blade holder mechanism, and the stabilizing mechanism is slidably connected to the rotating mechanism and can slide radially.
[0008] Furthermore, the lifting mechanism includes: a motor, a lead screw, a lead screw seat, a lead screw slider, a guide rail, a guide rail slider, a pressure plate bracket, a pressure plate, an infrared rangefinder, and an air pump; the motor is installed at the bottom of the bracket mechanism, and its output end is connected to the lead screw via a coupling; the lead screw is rotatably mounted on the bracket mechanism via the lead screw seat and is threadedly connected to the lead screw slider, and the lead screw seat is fixedly connected to the bracket mechanism; the guide rail is fixed to the bracket mechanism, and the guide rail slider is fitted onto the guide rail; the pressure plate bracket is fixedly connected to the lead screw slider and the guide rail slider respectively, so as to move up and down along the guide rail under the drive of the motor; the pressure plate is hinged to the pressure plate bracket, and the infrared rangefinder and the air pump are both mounted on the pressure plate bracket, with the air pump located inside the pressure plate bracket.
[0009] Furthermore, the rotating mechanism includes: a transmission box, a servo motor, a bevel gear shaft, a small bevel gear, a large bevel gear, a large bevel gear shaft, a worm, a worm wheel, and a thrust bearing; the transmission box and the servo motor are both fixedly mounted on the support mechanism, the power output end of the servo motor is connected to the small bevel gear via a spline, and the small bevel gear meshes with the large bevel gear; the large bevel gear and the worm are both connected to the large bevel gear shaft via a spline, and the worm meshes with the worm wheel; both the worm wheel and the transmission box have a central through hole, and the tool holder mechanism is located in the central through hole of the worm wheel; the thrust bearing is located below the worm wheel, and its two ends are respectively connected to the worm wheel and the transmission box; the central through hole of the transmission box, the central through hole of the worm wheel, the thrust bearing, the tool holder mechanism, and the pressure plate are all coaxially arranged.
[0010] Furthermore, the tool holder mechanism includes: a tool holder, a tool disc, and a cutting blade; the tool holder is fixedly connected to the central through hole of the worm gear; the tool disc is fixedly connected to the tool holder, and the tool disc has a spiral rising disc structure with a radial opening; the cutting blade is fixedly installed at the opening of the tool disc; the tool holder, the tool disc, and the central through hole of the worm gear are all coaxially arranged.
[0011] Furthermore, the stabilizing mechanism includes: a baffle, a guide rod, a spring, and a stabilizing pressure plate; the baffle and the stabilizing pressure plate are respectively fixedly connected to the guide rod; the guide rod slides through the transmission box; the spring is fitted on the outside of the guide rod, and both ends of the spring abut against the stabilizing pressure plate and the transmission box respectively.
[0012] Furthermore, it also includes a control system, which is mounted on the support mechanism and includes a control panel located on the outside of the support mechanism. The control system is electrically connected to the electrical components of the lifting mechanism and the rotating mechanism to control the coordinated operation of the device.
[0013] Furthermore, the method of using the potato rotary cutter with root-cutting function is characterized by comprising the following steps:
[0014] S01. Feeding and holding: Place the potato to be rotary cut at the center of the blade holder mechanism 4; at this time, under the action of the spring 53, the light rod 52 slides radially inward, thereby driving the holding plate 54 to initially clamp and hold the potato, ensuring that the potato does not shift radially during the rotary cutting process;
[0015] S02. Start-up and distance measurement: Operate the control panel to start the equipment. The control system first turns on the infrared rangefinder 29 located on the pressure plate bracket 27 to measure the distance (between the pressure plate bracket 27 and the cutter head 42) in real time. At the same time, the air pump 210 is started to make auxiliary preparations according to the processing requirements.
[0016] S03. Downward pressure, centering, and fixing: The control system controls the motor 21 of the lifting mechanism 2 to rotate forward, and the power drives the lead screw 22 to rotate in the lead screw seat 23 through the coupling; through the threaded transmission, the lead screw slider 24 and the pressure plate bracket 27 fixed thereto are driven to descend smoothly along the guide rail 25 until the pressure plate 28 contacts and tightly presses the top of the potato, forming a coordinated fixation with the holding mechanism 5 in the vertical and circumferential directions;
[0017] S04. Rotary cutting: The control system starts the servo motor 32 of the rotary mechanism 3, and its power is transmitted sequentially to the large bevel gear shaft 36 and the worm 37 through the meshing and reversal of the small bevel gear 34 and the large bevel gear 35; the worm 37 drives the worm wheel 38 to rotate smoothly under the support of the thrust bearing 39;
[0018] S05. Continuous Feeding and Complete Root Cutting: The worm gear 38 rotates, synchronously driving the cutter head 41 and the spirally rising cutter head 42 of the internally coaxially fixed cutter head mechanism 4 to rotate at high speed; the blade 43 located at the opening of the cutter head 42 continuously spins and cuts the bottom of the potato; at the same time, the motor 21 of the lifting mechanism 2 continues to drive the pressure plate 28 to press down at a matching feed speed, and with the circumferential holding pressure plate 54, the potato is continuously pushed towards the blade 43; when the infrared rangefinder 29 detects that the pressure plate support 27 has reached the predetermined position, the motor 21 stops rotating, the air pump 210 starts working, and the compressed air output by the air pump 210 pushes the remaining root of the potato downward into the blade 43, and completes the root cutting under the drive of the rotating mechanism 3. The cut potato slices are discharged downward from the radial opening of the cutter head 42.
[0019] S06. Stop and Reset: After the rotary cutting process is completed (the air pump 210 pumps out all the gas, and the remaining potatoes are completely cut at the root), the control system controls the servo motor 32 to stop running, and the cutter head 42 stops rotating; then, the motor 21 of the lifting mechanism 2 reverses, driving the pressure plate 28 to rise along the guide rail 25 to reset to the initial position; the motor 21 stops rotating, the air pump 210 and the infrared rangefinder 29 are turned off, completing the entire potato rotary cutting process.
[0020] The beneficial effects of implementing the potato rotary cutting device with root-cutting function and its usage method of the present invention are as follows:
[0021] (1) The present invention provides a potato rotary cutting device with root cutting function and its usage method. The compressed air output by the air pump pushes the remaining root of the potato downward into the blade, and the root is completely cut under the drive of the rotating mechanism. It has the advantages of high raw material utilization, zero residue, simple and stable structure, simple and safe operation, economical and practical, and convenient mobility.
[0022] (2) The holding mechanism composed of the spring, the light rod and the holding plate can stably clamp and squeeze potatoes of different sizes and shapes, improve the radial positioning accuracy of rotary cutting, increase cutting stability and reduce the defect rate. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of a potato rotary cutting device with root-cutting function according to the present invention;
[0024] Figure 2 This is a three-dimensional structural diagram of the stabilizing mechanism of a potato rotary cutting device with root-cutting function according to the present invention;
[0025] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism of a potato rotary cutting device with root-cutting function according to the present invention;
[0026] Figure 4 This is a three-dimensional structural diagram of the blade holder mechanism of a potato rotary cutting device with root-cutting function according to the present invention;
[0027] Figure 5 This is a cross-sectional view of the pressure plate bracket of a potato rotary cutting device with root-cutting function according to the present invention;
[0028] In the diagram: 1-Support mechanism, 2-Lifting mechanism, 21-Motor, 22-Lead screw, 23-Lead screw seat, 24-Lead screw slider, 25-Guide rail, 26-Guide rail slider, 27-Pressure plate support, 28-Pressure plate, 29-Infrared rangefinder, 210-Air pump, 3-Rotating mechanism, 31-Transmission box, 32-Servo motor, 33-Bevel gear shaft, 34-Small bevel gear, 35-Large bevel gear, 36-Large bevel gear shaft, 37-Wheel screw, 38-Turbine, 39-Thrust bearing, 4-Tool holder mechanism, 41-Tool head holder, 42-Tool head, 43-Blade, 5-Stabilizing mechanism, 51-Baffle, 52-Smooth rod, 53-Spring, 54-Stabilizing pressure plate. Detailed Implementation
[0029] The following description, in conjunction with the accompanying drawings, further illustrates a potato rotary cutting device with root-cutting function and its usage method according to the present invention:
[0030] like Figure 1 , 2 As shown in Figures 3, 4, and 5, a potato rotary slicing device with root-cutting function includes: a support mechanism 1, a lifting mechanism 2, a rotating mechanism 3, a blade holder mechanism 4, and a stabilizing mechanism 5; the lifting mechanism 2 is disposed on the column side of the support mechanism 1; the rotating mechanism 3 is disposed in the middle of the column of the support mechanism 1; the blade holder mechanism 4 is coaxially disposed at the center of the rotating mechanism 3, and the blade holder mechanism 4 is fixedly connected to the rotating mechanism 3 to rotate synchronously with it; the stabilizing mechanism 5 is circumferentially disposed above the blade holder mechanism 4, and the stabilizing mechanism 5 is slidably connected to the rotating mechanism 3 and can slide radially.
[0031] Furthermore, the lifting mechanism 2 includes: a motor 21, a lead screw 22, a lead screw seat 23, a lead screw slider 24, a guide rail 25, a guide rail slider 26, a pressure plate bracket 27, a pressure plate 28, an infrared rangefinder 29, and an air pump 210; the motor 21 is installed at the bottom of the support mechanism 1, and its output end is connected to the lead screw via a coupling; the lead screw 22 is rotatably mounted on the support mechanism 1 via the lead screw seat 23 and is threadedly connected to the lead screw slider 24; the lead screw seat 23 is connected to the support mechanism 1. Fixed connection; the guide rail 25 is fixed to the support mechanism 1, and the guide rail slider 26 is fitted onto the guide rail 25; the pressure plate bracket 27 is fixedly connected to the lead screw slider 24 and the guide rail slider 26 respectively, so as to move up and down along the guide rail 25 under the drive of the motor 21; the pressure plate 28 is hinged to the pressure plate bracket 27, and the infrared rangefinder 29 is set on the pressure plate bracket 27 to sense the distance of the pressure plate bracket 27; the air pump 210 is located inside the pressure plate bracket 27.
[0032] Furthermore, the rotating mechanism 3 includes: a transmission box 31, a servo motor 32, a bevel gear shaft 33, a small bevel gear 34, a large bevel gear 35, a large bevel gear shaft 36, a worm gear 37, a worm wheel 38, and a thrust bearing 39; the transmission box 31 and the servo motor 32 are both fixedly mounted on the support mechanism 1, and the power output end of the servo motor 32 is connected to the small bevel gear 34 via a spline; the small bevel gear 34 meshes with the large bevel gear 35, causing the large bevel gear 35 to reduce speed and increase torque, providing a powerful cutting force; the large bevel gear 35 and the worm gear 37 are both connected via a spline. The large bevel gear shaft 36 is on which the worm 37 meshes with the worm wheel 38; both the worm wheel 38 and the transmission box 31 have central through holes, and the knife holder mechanism 4 is located in the central through hole of the worm wheel 38; the thrust bearing 39 is located below the worm wheel 38, and its two ends are respectively connected to the worm wheel 38 and the transmission box 31, so that the worm wheel 38 can rotate smoothly; the central through hole of the transmission box 31, the central through hole of the worm wheel 38, the thrust bearing 39, the knife holder mechanism 4, and the pressure plate 28 are all coaxially arranged to ensure smooth potato cutting.
[0033] Furthermore, the tool holder mechanism 4 includes: a tool disc holder 41, a tool disc 42, and a blade 43; the tool disc holder 41 is fixedly connected to the central through hole of the worm gear 38; the tool disc 42 is fixedly connected to the tool disc holder 41, and the tool disc 42 has a spiral rising disc structure with a radial opening; the blade 43 is fixedly installed at the opening of the tool disc 42; the tool disc holder 41, the tool disc 42, and the central through hole of the worm gear 38 are all coaxially arranged.
[0034] Furthermore, the stabilizing mechanism 5 includes: a baffle 51, a smooth rod 52, a spring 53, and a stabilizing pressure plate 54; the baffle 51 and the stabilizing pressure plate 54 are respectively fixedly connected to the smooth rod 52; the smooth rod 52 is slidably inserted through the transmission box 31; the spring 53 is fitted on the outside of the smooth rod 52, and both ends of the spring 53 abut against the stabilizing pressure plate 54 and the transmission box 31 respectively; under the elastic force of the spring 53, the smooth rod 52 slides radially inward, thereby driving the stabilizing pressure plate 54 to clamp and stabilize the potato, ensuring that the potato does not shift radially during the rotary cutting process.
[0035] Furthermore, it also includes a control system, which is mounted on the support mechanism 1. The control system includes a control panel located on the outside of the support mechanism 1. The control system is electrically connected to the lifting mechanism 2 and the rotating mechanism 3 respectively using electrical components to control the coordinated operation of the device.
[0036] like Figure 1 , 2 As shown in Figures 3, 4, and 5, the working principle of the potato rotary cutter with root-cutting function of the present invention is as follows:
[0037] Place the potato to be slicing at the center of the blade holder mechanism 4; at this time, under the action of the spring 53, the light rod 52 slides radially inward, thereby driving the holding plate 54 to initially clamp and hold the potato, ensuring that the potato does not shift radially during the slicing process.
[0038] When the control panel is operated to start the equipment, the control system first turns on the infrared rangefinder (29) located on the pressure plate bracket (27) to measure the distance between the pressure plate bracket (27) and the cutter head (42) in real time; at the same time, the air pump 210 is started to make auxiliary preparations according to the processing requirements.
[0039] The control system controls the motor 21 of the lifting mechanism 2 to rotate forward, and the power drives the lead screw 22 to rotate in the lead screw seat 23 through the coupling; through the threaded transmission, the lead screw slider 24 and the pressure plate bracket 27 fixedly connected to it are driven to descend smoothly along the guide rail 25 until the pressure plate 28 contacts and tightly presses the top of the potato, forming a coordinated fixation with the holding mechanism 5 in the vertical and circumferential directions.
[0040] At this time, the control system starts the servo motor 32 of the rotating mechanism 3, and its power is transmitted to the large bevel gear shaft 36 and the worm 37 through the meshing and reversal of the small bevel gear 34 and the large bevel gear 35 in sequence; the worm 37 drives the worm wheel 38 to rotate smoothly under the support of the thrust bearing 39.
[0041] The worm gear 38 rotates, synchronously driving the blade holder 41 and the spirally rising blade 42 of the blade holder mechanism 4, which are internally coaxially fixed, to rotate at high speed. The blade 43 located at the opening of the blade 42 continuously spins and cuts the bottom of the potato. At the same time, the motor 21 of the lifting mechanism 2 continues to drive the pressure plate 28 to press down at a matching feed speed. With the help of the circumferential holding pressure plate 54, the potato is continuously pushed towards the blade 43. When the infrared rangefinder 29 detects that the pressure plate support 27 has reached a predetermined distance, the motor 21 stops rotating, and the air pump 210 starts working. The compressed air output by the air pump 210 pushes the remaining root of the potato downward into the blade 43, and the root is completely spin-cut under the drive of the rotating mechanism 3. The cut potato slices are discharged downward from the radial opening of the blade 42.
[0042] After the rotary cutting process is completed (the air pump 210 pumps out all the gas, and the remaining potatoes are completely cut off at the root), the control system controls the servo motor 32 to stop running, and the cutter head 42 stops rotating; then, the motor 21 of the lifting mechanism 2 reverses, driving the pressure plate 28 to rise along the guide rail 25 to reset to the initial position; the motor 21 stops rotating, the air pump 210 and the infrared rangefinder 29 are turned off, completing the entire potato rotary cutting process.
[0043] like Figure 1 , 2 As shown in Figures 3, 4, and 5, the specific steps of the working method of the potato rotary cutting device with root-cutting function of the present invention are as follows:
[0044] S01. Feeding and holding: Place the potato to be rotary cut at the center of the blade holder mechanism 4; at this time, under the action of the spring 53, the light rod 52 slides radially inward, thereby driving the holding plate 54 to initially clamp and hold the potato, ensuring that the potato does not shift radially during the rotary cutting process;
[0045] S02. Start-up and distance measurement: Operate the control panel to start the equipment. The control system first turns on the infrared rangefinder 29 located on the pressure plate bracket 27 to measure the distance (between the pressure plate bracket 27 and the cutter head 42) in real time. At the same time, the air pump 210 is started to make auxiliary preparations according to the processing requirements.
[0046] S03. Downward pressure, centering, and fixing: The control system controls the motor 21 of the lifting mechanism 2 to rotate forward, and the power drives the lead screw 22 to rotate in the lead screw seat 23 through the coupling; through the threaded transmission, the lead screw slider 24 and the pressure plate bracket 27 fixed thereto are driven to descend smoothly along the guide rail 25 until the pressure plate 28 contacts and tightly presses the top of the potato, forming a coordinated fixation with the holding mechanism 5 in the vertical and circumferential directions;
[0047] S04. Rotary cutting: The control system starts the servo motor 32 of the rotary mechanism 3, and its power is transmitted sequentially to the large bevel gear shaft 36 and the worm 37 through the meshing and reversal of the small bevel gear 34 and the large bevel gear 35; the worm 37 drives the worm wheel 38 to rotate smoothly under the support of the thrust bearing 39;
[0048] S05. Continuous Feeding and Complete Root Cutting: The worm gear 38 rotates, synchronously driving the cutter head 41 and the spirally rising cutter head 42 of the internally coaxially fixed cutter head mechanism 4 to rotate at high speed; the blade 43 located at the opening of the cutter head 42 continuously spins and cuts the bottom of the potato; at the same time, the motor 21 of the lifting mechanism 2 continues to drive the pressure plate 28 to press down at a matching feed speed, and with the circumferential holding pressure plate 54, the potato is continuously pushed towards the blade 43; when the infrared rangefinder 29 detects that the pressure plate support 27 has reached the predetermined position, the motor 21 stops rotating, the air pump 210 starts working, and the compressed air output by the air pump 210 pushes the remaining root of the potato downward into the blade 43, and completes the root cutting under the drive of the rotating mechanism 3. The cut potato slices are discharged downward from the radial opening of the cutter head 42.
[0049] S06. Stop and Reset: After the rotary cutting process is completed (the air pump 210 pumps out all the gas, and the remaining potatoes are completely cut at the root), the control system controls the servo motor 32 to stop running, and the cutter head 42 stops rotating; then, the motor 21 of the lifting mechanism 2 reverses, driving the pressure plate 28 to rise along the guide rail 25 to reset to the initial position; the motor 21 stops rotating, the air pump 210 and the infrared rangefinder 29 are turned off, completing the entire potato rotary cutting process.
[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A potato rotary cutter with root-cutting function, characterized in that, include: The support mechanism (1), lifting mechanism (2), rotating mechanism (3), tool holder mechanism (4), and stabilizing mechanism (5) are provided. The lifting mechanism (2) is located on the column side of the support mechanism (1). The rotating mechanism (3) is located in the middle of the column of the support mechanism (1). The tool holder mechanism (4) is coaxially located at the center of the rotating mechanism (3). The tool holder mechanism (4) is fixedly connected to the rotating mechanism (3) to rotate synchronously with it. The holding mechanism (5) is circumferentially disposed above the tool holder mechanism (4). The holding mechanism (5) is slidably connected to the rotating mechanism (3) and can slide radially.
2. A potato rotary cutter with root-cutting function according to claim 1, characterized in that, The lifting mechanism (2) includes: a motor (21), a lead screw (22), a lead screw seat (23), a lead screw slider (24), a guide rail (25), a guide rail slider (26), a pressure plate bracket (27), a pressure plate (28), an infrared rangefinder (29), and an air pump (210); the motor (21) is installed at the bottom of the bracket mechanism (1), and its output end is connected to the lead screw (22) through a coupling; the lead screw (22) is rotatably mounted on the bracket mechanism (1) through the lead screw seat (23) and threadedly connected to the lead screw slider (24), and the lead screw seat (23) is connected to the bracket mechanism (1). The mechanism (1) is fixedly connected; the guide rail (25) is fixed on the support mechanism (1), and the guide rail slider (26) is fitted on the guide rail (25); the pressure plate bracket (27) is fixedly connected to the lead screw slider (24) and the guide rail slider (26) respectively, so as to move up and down along the guide rail (25) under the drive of the motor (21); the pressure plate (28) is hinged on the pressure plate bracket (27), the infrared rangefinder (29) and the air pump (210) are both set on the pressure plate bracket (27), and the air pump (210) is located inside the pressure plate bracket (27).
3. A potato rotary cutter with root-cutting function according to claim 2, characterized in that, The rotating mechanism (3) includes: a transmission box (31), a servo motor (32), a bevel gear shaft (33), a small bevel gear (34), a large bevel gear (35), a large bevel gear shaft (36), a worm (37), a worm wheel (38), and a thrust bearing (39); the transmission box (31) and the servo motor (32) are both fixedly mounted on the support mechanism (1), the power output end of the servo motor (32) is connected to the small bevel gear (34) by a spline, and the small bevel gear (34) meshes with the large bevel gear (35); the large bevel gear (35) and the worm (37) are both connected by a spline. The worm (37) is connected to the large bevel gear shaft (36) and meshes with the worm wheel (38); the worm wheel (38) and the transmission box (31) both have a central through hole, and the tool holder mechanism (4) is set in the central through hole of the worm wheel (38); the thrust bearing (39) is set below the worm wheel (38), and its two ends are respectively connected to the worm wheel (38) and the transmission box (31); the central through hole of the transmission box (31), the central through hole of the worm wheel (38), the thrust bearing (39), the tool holder mechanism (4) and the pressure plate (28) are all coaxially arranged.
4. A potato rotary cutter with root-cutting function according to claim 3, characterized in that, The tool holder mechanism (4) includes: a tool holder (41), a tool disc (42), and a blade (43); the tool holder (41) is fixedly connected to the central through hole of the worm gear (38); the tool disc (42) is fixedly connected to the tool holder (41), and the tool disc (42) has a spiral rising disc structure with a radial opening; the blade (43) is fixedly installed at the opening of the tool disc (42); the tool holder (41), the tool disc (42), and the central through hole of the worm gear (38) are all coaxially arranged.
5. A potato rotary cutter with root-cutting function according to claim 4, characterized in that, The stabilizing mechanism (5) includes: a baffle (51), a light rod (52), a spring (53), and a stabilizing pressure plate (54); the baffle (51) and the stabilizing pressure plate (54) are respectively fixedly connected to the light rod (52); the light rod (52) slides through the transmission box (31); the spring (53) is fitted on the outside of the light rod (52), and the two ends of the spring (53) abut against the stabilizing pressure plate (54) and the transmission box (31) respectively.
6. A potato rotary cutter with root-cutting function according to claim 1, characterized in that, It also includes a control system; the control system is disposed on the support mechanism (1), and the control system includes a control panel disposed on the outside of the support mechanism (1); the control system is electrically connected to the lifting mechanism (2) and the rotating mechanism (3) respectively to control the coordinated operation of the device.
7. A method of using a potato rotary cutter with root-cutting function according to any one of claims 1-6, characterized in that, Includes the following steps: S01. Feeding and holding: Place the potato to be rotary cut at the center of the blade holder mechanism (4); at this time, under the action of the spring (53), the light rod (52) slides radially inward, thereby driving the holding plate (54) to initially clamp and hold the potato, ensuring that the potato does not shift radially during the rotary cutting process; S02. Start-up and distance measurement: Operate the control panel to start the equipment. The control system first turns on the infrared rangefinder (29) located on the pressure plate bracket (27) to measure the distance (between the pressure plate bracket (27) and the cutter head (42) in real time; at the same time, the air pump (210) is started to make auxiliary preparations according to the processing requirements. S03. Pressing down, centering and fixing: The control system controls the motor (21) of the lifting mechanism (2) to rotate forward, and the power drives the lead screw (22) to rotate in the lead screw seat (23) through the coupling; through the thread transmission, the lead screw slider (24) and the pressure plate bracket (27) fixed thereto are driven to descend smoothly along the guide rail (25) until the pressure plate (28) contacts and tightly presses the top of the potato, forming a coordinated fixation with the holding mechanism (5) in the upper and lower and circumferential directions; S04. Rotary cutting: The control system starts the servo motor (32) of the rotary mechanism (3), and its power is transmitted to the large bevel gear shaft (36) and the worm (37) through the meshing and reversal of the small bevel gear (34) and the large bevel gear (35); the worm (37) drives the worm wheel (38) to rotate smoothly under the support of the thrust bearing (39); S05. Continuous feeding and root cutting: The worm gear (38) rotates, synchronously driving the blade holder (41) and the spirally rising blade (42) of the blade holder mechanism (4) which are coaxially fixed inside to rotate at high speed; the blade (43) located at the opening of the blade (42) continuously spins and cuts the bottom of the potato; at the same time, the motor (21) of the lifting mechanism (2) continues to drive the pressure plate (28) to press down at a matching feed speed, in conjunction with the circumferential holding pressure plate. (54) The potato is continuously pushed towards the blade (43); when the infrared rangefinder (29) detects that the pressure plate bracket (27) has reached the predetermined position, the motor (21) stops rotating, the air pump 210 starts working, and the compressed air output by the air pump 210 pushes the remaining root of the potato downward into the blade 43, and the root is completely cut under the drive of the rotating mechanism 3. The potato slices cut into shape are discharged downward from the radial opening of the blade (42); S06. Stop and Reset: After the rotary cutting process is completed (the air pump (210) pumps out all the gas, and the remaining potatoes are completely cut at the root), the control system controls the servo motor (32) to stop running, and the cutter head (42) stops rotating; then, the motor (21) of the lifting mechanism (2) reverses, driving the pressure plate (28) to rise along the guide rail (25) to reset to the initial position; the motor (21) stops rotating, the air pump 210 and the infrared rangefinder 29 are turned off, and the entire potato rotary cutting process is completed.