Root cutting apparatus for corn cobs

Abstract

The application discloses a corn cob root cutting device and belongs to the technical field of agricultural product processing machinery. The device comprises a rack, a conveying mechanism, a positioning mechanism, an in-situ detection mechanism, a cutting mechanism and a control system. The positioning mechanism comprises two groups of symmetrical movable clamping plates installed above the conveying mechanism and first driving members for driving the movable clamping plates to open and close, each movable clamping plate is provided with a limiting top plate extending to the other side at the discharging end, and a gap is left between the two limiting top plates for the corn cob root to extend when the movable clamping plates are closed. The in-situ detection mechanism is used for detecting whether the corn cob enters between the two movable clamping plates. The cutting mechanism is arranged at the discharging end of the movable clamping plate. The control system is configured to drive the movable clamping plates to close when the corn cob is detected to enter, to control the cutting mechanism to cut the root after a time delay, and to reset and open the clamping plates after cutting. The device does not need to press the surface of the corn cob, the length of the cut root is accurately controlled through radial clamping and the limiting top plate, different diameter corn cobs are adapted, the consistency of the cut root is good, and the qualified rate of products reaches 98.5%.

Description

Technical Field

[0001] This invention relates to the field of agricultural product processing machinery technology, and in particular to a corn cob cutting device. Background Technology

[0002] In the initial post-harvest processing of fresh corn on the cob, root removal is a crucial step in removing impurities and facilitating subsequent quick-freezing or further processing. Currently, most common corn cob root-cutting equipment employs an assembly line operation: a conveyor belt or chain moves the corn cobs, elastic pressure rollers above hold the cobs in place, and a rotating cutter on the side or end cuts the root. This type of equipment presents two main problems in practical use.

[0003] Firstly, the positioning method is rather crude. The elastic clamping rollers and the curved support plate can only confine the corn cob to a general area. Because the corn cobs themselves are uneven in thickness and length, and their surfaces are often bumpy, the pressure applied by the clamping rollers can easily cause the corn cobs to move axially or deflect laterally, resulting in significant fluctuations in the cut position. Some cuts are not clean at the root, while others cut into the main body of the corn cob, affecting the appearance of the finished product and subsequent processing.

[0004] Secondly, adaptability is limited. The diameter and length of corn cobs vary significantly between different varieties or seasons. Existing equipment has limited pressure roller stroke and a fixed curvature for the arc-shaped support plate, requiring manual adjustment or component replacement during production changes, making operation cumbersome. For corn cobs with smaller diameters or irregular shapes, the pressure rollers struggle to provide stable positioning force, causing the cobs to wobble during cutting, further reducing the consistency of the cut.

[0005] Furthermore, the elastic clamping rollers make surface contact with the corn cob, and a certain clamping force is often required to ensure positioning, which can easily leave indentations on the corn kernels or damage the husk. This is particularly disadvantageous in the processing of high-quality fresh corn.

[0006] To address the aforementioned issues, some equipment attempts have used cylinders to drive baffles or blocking plates for end positioning. However, most of these methods primarily rely on blocking and do not effectively constrain the radial direction of the corn cob, meaning the cob may still deviate during cutting. Other solutions employ two parallel clamping plates on the left and right, but due to the mismatch between the clamping plates and the corn cob's contour, the limited contact points result in insufficient positioning accuracy.

[0007] Therefore, how to achieve stable radial positioning of corn cobs without compressing the surface of the corn cobs, while also taking into account adaptability to corn cobs of different diameters and lengths, is a technical problem that needs to be solved in this field. Summary of the Invention

[0008] This invention provides a corn cob cutting device, which aims to solve the technical problem in the prior art that corn cobs must be compressed to accommodate corn cobs of different diameters and lengths for cutting.

[0009] To achieve the above-mentioned objectives, the present invention proposes a corn cob cutting device, comprising a frame, a conveying mechanism, a positioning mechanism, an in-situ detection mechanism, a cutting mechanism, and a control system disposed on the frame; The positioning mechanism includes two sets of movable clamps symmetrically installed above the conveying mechanism, and a first driving member for opening and closing the movable clamps; wherein, each of the movable clamps is provided with a limiting top plate extending toward the other movable clamp at the discharge end; when the two sets of movable clamps are closed, a gap is left between the two limiting top plates for the root of the corn cob to extend out. The in-situ detection mechanism is set in relation to the positioning mechanism and is used to detect whether the corn cob is conveyed between the two sets of movable clamps. The cutting mechanism is provided at the discharge end of the movable clamping plate and is used to cut off the root of the corn cob extending from the gap; The control system is electrically connected to the conveying mechanism, the first driving component, the in-situ detection mechanism, and the cutting mechanism, and is configured to: when the in-situ detection mechanism detects that the corn cob is conveyed between the two sets of movable clamps, control the first driving component to drive the movable clamps to close, while keeping the conveying mechanism running; after a preset time delay from the closing of the movable clamps, control the cutting mechanism to complete the root cutting; after the cutting is completed, control the cutting mechanism to reset, and control the first driving component to drive the movable clamps to open.

[0010] Furthermore, the distance between the two sets of movable clamps gradually decreases from the feeding end to the discharging end.

[0011] Furthermore, the limiting top plate is an arc-shaped plate, and the openings of the two arc-shaped plates are opposite each other.

[0012] Furthermore, the cutting mechanism includes a cutter, a second driving member for driving the cutter, a cutting pad, and a third driving member for driving the cutting pad; the cutting pad is arranged opposite to the cutter; after a preset delay, the control system controls the second driving member and the third driving member to drive the cutter and the cutting pad to move towards each other, thereby completing the root cutting.

[0013] Furthermore, the cutter is a strip-shaped blade; the second driving component is a root-cutting cylinder, and the cutter is mounted on the piston rod end of the root-cutting cylinder via a blade fixing seat; the third driving component is a pad cylinder, and the cutting pad is mounted on the piston rod end of the pad cylinder via a pad mounting seat.

[0014] Furthermore, the frame is provided with a cylinder mounting bracket for mounting the first drive component, the second drive component, and the third drive component.

[0015] Furthermore, the in-situ detection mechanism is a photoelectric sensor installed at the feed end or discharge end of the movable clamping plate, used to detect whether the corn cob has entered between the two movable clamping plates.

[0016] Furthermore, the photoelectric sensor is a through-beam photoelectric sensor, installed on both sides of the discharge end of the movable clamp.

[0017] Furthermore, the first driving component is a clamping plate control cylinder, which is mounted on the frame and is connected to the movable clamping plate via a Y-type connector.

[0018] Furthermore, the conveying mechanism includes a drive roller, a driven roller, and a conveyor belt fitted onto the two rollers, all mounted on the frame; the drive roller is connected to a drive motor unit via a coupling, and the drive motor unit is mounted on the frame.

[0019] Beneficial effects: The corn cob cutting device of the present invention, by setting two sets of symmetrical movable clamps and their driving components above the conveying mechanism, and setting an inwardly extending limiting top plate at the discharge end of the movable clamps, so that when the movable clamps are closed, only a gap is left between the two limiting top plates for the root to extend out. Compared with the prior art, the present device has the following advantages: The movable clamping plate radially clamps the corn cob, eliminating the need to press the surface of the corn cob with elastic clamping rollers, thus avoiding indentations and damage to the skin. This is especially suitable for processing high-quality fresh corn. At the same time, the clamping force is evenly applied to the main body of the corn cob, preventing axial movement or lateral deflection, and ensuring a stable cut position.

[0020] The limiting top plate forms a physical block at the discharge end. Together with the continuously running conveyor mechanism, it forces the root of the corn cob to be squeezed out of the gap while the main body of the corn cob is limited. This achieves precise control of the root extension length, thereby ensuring the consistency of the root cutting position and avoiding the problem of incomplete root cutting or cutting the main body.

[0021] The control system automatically executes the sequential actions of "clamping plate closing → delay → cutting → resetting → clamping plate opening" based on the in-situ detection signal, realizing fully automatic cyclic operation without manual intervention and reducing labor intensity; the delayed cutting design ensures that the root has sufficient time to fully extend after clamping, improving cutting reliability.

[0022] The opening and closing stroke of the two sets of movable clamps is adjustable, which can adapt to corn cobs of different diameters (30-80mm) without the need to replace parts; the gap between the limiting top plates can also be adjusted by adjusting the closing position of the clamps to adapt to different root thicknesses, making it highly versatile and easy to adjust when changing production.

[0023] The conveying mechanism continues to operate after the movable clamp is closed, using the friction between the conveyor belt and the corn cob to continuously push the root forward until it reaches the top limiting plate. This design simplifies the axial positioning structure, eliminates the need for additional pushing or positioning cylinders, and reduces equipment costs and failure rates. Attached Figure Description

[0024] Figure 1 A schematic diagram of a corn cob cutting device according to an embodiment of the invention; Figure 2 A partial structural enlarged schematic diagram of the positioning mechanism and cutting mechanism of a corn cob cutting device according to an embodiment of the invention; Figure 3 This is a top view of a corn cob cutting device according to an embodiment of the invention.

[0025] Wherein: 101-Frame; 102-Y-type connector; 103-Drive motor assembly; 104-Coupling; 105-Conveyor belt; 106-Second drive component; 107-Blade holder; 108-Cutter; 109-Third drive component; 110-Padded block mounting base; 111-Cutting pad; 112-Cylinder mounting bracket; 113-First drive component; 114-Left movable clamping plate; 115-Right movable clamping plate; 116-Roller; 117-Through-beam photoelectric sensor; 118-Limiting top plate.

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] Reference Figures 1 to 3 An embodiment of the present invention provides a corn cob cutting device, including a frame 101, a conveying mechanism, a positioning mechanism, an in-situ detection mechanism, a cutting mechanism and a control system disposed on the frame.

[0032] The aforementioned positioning mechanism includes two sets of movable clamps (left movable clamp 114 and right movable clamp 115) symmetrically mounted above the conveying mechanism, and a first driving member 113 for opening and closing the movable clamps. Each movable clamp has a limiting top plate 118 extending towards the other movable clamp at its discharge end (i.e., the front end in the direction of corn cob conveying). When the two sets of movable clamps are closed, a gap is left between the two limiting top plates for the root of the corn cob to extend out.

[0033] The aforementioned in-situ detection mechanism is configured corresponding to the positioning mechanism and is used to detect whether the corn cob has been conveyed between the two sets of movable clamps.

[0034] The aforementioned cutting mechanism is provided at the discharge end of the movable clamping plate and is used to cut off the root of the corn cob extending from the gap.

[0035] The aforementioned control system is electrically connected to the conveying mechanism, the first driving component, the in-situ detection mechanism, and the cutting mechanism, respectively. The specific configuration of the control system is as follows: When the in-situ detection mechanism detects that a corn cob has been conveyed between two sets of movable clamps, it controls the first driving component to close the movable clamps while simultaneously maintaining the conveying mechanism's operation (ensuring the corn cob is still subjected to forward conveying friction while clamped, facilitating the root to push into the gap; the root of the corn cob passes through the gap, while the body of the corn cob is blocked by the limiting top plate 118 and cannot continue forward); after a preset delay from the closing of the movable clamps (this time is set according to the conveying speed, typically 0.2-0.5 seconds, to ensure the root fully extends out of the gap), the cutting mechanism is controlled to complete the root cutting; after cutting, the cutting mechanism is controlled to reset, and the first driving component is controlled to open the movable clamps, allowing the cut corn cob to be carried away by the conveying mechanism.

[0036] In this embodiment, the conveying mechanism is a belt conveyor, with two sets of movable clamps located above both sides of the conveyor belt. The first driving component 113 is preferably a cylinder (model MA20×80, working pressure 0.4-0.6MPa). The inner surface of the movable clamps roughly conforms to the outline of the corn cob, and the closing action radially clamps and automatically centers the corn cob. The limiting top plate 118 forms a physical barrier at the discharge end, allowing the root of the corn cob to extend outward through the gap between the two limiting top plates under the continuous drive of the conveying mechanism. The in-situ detection mechanism can use a photoelectric sensor (through-beam laser sensor, measurement accuracy ±0.1mm). The purpose of delayed cutting is to ensure that the root has fully extended. The cutting mechanism uses a reciprocating cutter (cutting blade length 120mm, thickness 2mm, cutting cylinder model TN20×50). The width of the conveyor belt 105 is 100mm to ensure that the corn cob enters the clamps in an orderly manner, the conveying speed is set to 0.7m / s, and the conveyor motor power is 0.5kW. The control system can use a Siemens S7-200 SMART PLC controller, equipped with a touch screen operating interface, which can display parameters such as equipment operating status and number of operations in real time, and can manually adjust parameters such as clamp spacing, axial positioning length, and conveying speed.

[0037] This embodiment, after actual testing, achieves a processing efficiency of 4000 ears / hour, a product qualification rate of 98.5%, and a skin integrity rate of 96%. Compared to existing assembly line equipment (qualification rate approximately 85%, skin integrity rate approximately 80%), the qualification rate is improved by approximately 15%, and the skin integrity rate by approximately 20%. This embodiment uses a movable clamping plate for radial clamping, eliminating the need to press the corn cob surface, thus avoiding indentations and skin damage; the limiting top plate 118 works in conjunction with the conveying mechanism to precisely control the root extension length, ensuring good consistency in root cutting position; the opening and closing action of the movable clamping plate can adapt to corn cob bodies of different diameters (stable clamping is possible for diameters of 30-80mm); the control system achieves fully automatic circulation without manual intervention.

[0038] In one embodiment, the distance between the left movable clamping plate 114 and the right movable clamping plate 115 gradually decreases from the feeding end to the discharging end.

[0039] That is, the inner surfaces of the left movable clamping plate 114 and the right movable clamping plate 115 are not parallel, but arranged in a V-shape, with a larger opening at the feed end and a smaller opening at the discharge end. When the corn cob is brought in by the conveying mechanism, it first enters the wider feed end. As it continues to move forward, the clamping plates on both sides gradually narrow, guiding the corn cob to the center position. At the discharge end, the distance between the two movable clamping plates can be slightly smaller than the average diameter of the corn cob, thereby achieving a stable clamping of the corn cob when closed.

[0040] The gradual spacing design in this embodiment prevents the corn cob from jamming due to instantaneous alignment when entering the positioning area, allowing for a smooth transition and reducing the risk of impact and blockage. Furthermore, even if the initial position of the corn cob deviates significantly, it can be gradually corrected, improving the reliability of positioning and adaptability to different initial postures.

[0041] In one embodiment, the limiting top plate 118 is an arc-shaped plate, and the openings of the two arc-shaped plates are opposite each other.

[0042] The limiting top plate 118 is located on the end face of the discharge end of the movable clamping plate, and its surface facing the other clamping plate is an arc-shaped concave surface. The two arc-shaped concave surfaces face each other. When the two sets of movable clamping plates are closed, the arc-shaped concave surface matches the contour of the section connecting the main body of the corn cob and the root (the tail section of the main body of the corn cob). The root passes through the gap, while the main body of the corn cob is blocked by the arc-shaped edge. In this embodiment, the arc radius of the movable clamping plate is 30mm, and its length is 400mm.

[0043] In this embodiment, the arc-shaped limiting top plate fits the shape of the tail section of the corn cob body, which can prevent the corn cob body from being accidentally cut and allow the root to extend smoothly, thus improving the adaptability to corn cobs of different diameters.

[0044] In one embodiment, the cutting mechanism includes a cutter 108, a second driving member 106 driving the cutter 108, a cutting pad 111, and a third driving member 109 driving the cutting pad 111; the cutting pad 111 is disposed opposite to the cutter 108; after a preset delay, the control system controls the second driving member 106 and the third driving member 109 to drive the cutter and the cutting pad to move towards each other, thereby completing the root cutting.

[0045] In this embodiment, the cutter 108 and the cutting pad 111 are located on both sides of the gap extending from the root of the corn cob. The second drive unit 106 drives the cutter to move towards the root, and the third drive unit 109 drives the cutting pad to move towards the root. The two drive units close together to cut off the root. The cutting pad provides a reverse support force to prevent the cutter from bending the root during the cutting process and failing to cut it off. After the movable clamp closes and delays, the control system simultaneously triggers the action of the second drive unit 106 and the third drive unit 109.

[0046] This embodiment employs a shearing method where the cutter and the cutting pad move in opposite directions. This concentrates the cutting force, produces a smooth cut, and minimizes impact on the corn cob. Compared to a single-sided cutter, bidirectional cutting reduces root deformation, making it particularly suitable for thicker or tougher corn cob roots. Simultaneously, the supporting effect of the pad reduces cutter wear and extends blade life.

[0047] In one embodiment, the cutter 108 is a strip-shaped blade; the second drive member 106 is a root-cutting cylinder, and the cutter 108 is mounted on the piston rod end of the root-cutting cylinder via a blade fixing seat 107; the third drive member 109 is a pad cylinder, and the cutting pad 111 is mounted on the piston rod end of the pad cylinder via a pad mounting seat 110.

[0048] The strip-shaped blade has a straight cutting edge, suitable for straight cutting. Both the root-cutting cylinder and the pad cylinder are double-acting cylinders, fixed to the frame 101 or the cylinder mounting bracket 112, respectively. The blade holder 107 and the pad mounting bracket 110 are machined metal parts, fixing the blade and pad to the front end of their respective cylinder piston rods. The control system controls the cylinder's intake and exhaust via solenoid valves, realizing the extension and retraction of the piston rod.

[0049] The cylinder drive offers fast response, simple control, and low cost. The strip-shaped blade is easy to replace and re-sharpen. The blade holder 107 and the pad mounting base 110 ensure the alignment accuracy between the blade and the cutting pad 111, and the overall structure is compact, making it suitable for placement in limited spaces.

[0050] In one embodiment, a cylinder mounting bracket 112 is provided on the frame 101 for mounting the first drive member 113, the second drive member 106 and the third drive member 109.

[0051] The cylinder mounting bracket 112 is a welded or bolted metal frame fixed to the top or side of the frame 101. The first drive component 113 (clamp control cylinder), the second drive component 106 (root cutting cylinder), and the third drive component 109 (shield block cylinder) are all fixed to the bracket by mounting plates or clamps. The bracket design allows the spatial position of each cylinder to be relatively independent, facilitating adjustment and maintenance.

[0052] By mounting multiple cylinders on the same bracket, the rigidity and integration of the overall structure are improved, and the relative displacement error between components is reduced. At the same time, it facilitates unified adjustment during equipment commissioning and routine maintenance.

[0053] In one embodiment, the aforementioned in-situ detection mechanism is a photoelectric sensor installed at the feed end or discharge end of the movable clamps 114 and 115, used to detect whether corn cobs have entered between the two movable clamps.

[0054] The photoelectric sensor can be either diffuse reflection or through-beam type. When installed at the feed end, the photoelectric sensor sends a signal when it detects the head of the corn cob entering the clamping area; when installed at the discharge end, the photoelectric sensor sends a signal when it detects the root of the corn cob reaching a predetermined position. The signal from the photoelectric sensor is sent to the control system. The photoelectric sensor performs non-contact detection, has a fast response speed, and is not affected by the surface condition of the corn cob. The installation position can be selected as needed to flexibly adapt to different control logics (such as closing the clamping plate upon detection of entry, or closing it only upon detection of positioning).

[0055] In one embodiment, the aforementioned photoelectric sensor is a through-beam photoelectric sensor 117, which is installed on both sides of the discharge end of the movable clamp.

[0056] The photoelectric sensor includes a transmitter and a receiver, which are respectively installed on the outside of the discharge ends of the left movable clamp 114 and the right movable clamp 115. When the root of the corn cob passes through the gap between the two limiting top plates (at which time the left movable clamp 114 and the right movable clamp 115 are in the open state), the light path between the transmitter and the receiver is blocked, and the sensor output signal changes. The control system determines that the corn cob has arrived based on this signal change, and controls the left movable clamp 114 and the right movable clamp 115 to close. Within a preset time, the root of the corn cob will continue to be delivered until the main body of the corn cob is blocked by the limiting top plates 118 of the left movable clamp 114 and the right movable clamp 115. When the preset time is reached, the cutting action is triggered.

[0057] Compared to diffuse reflection sensors, through-beam sensors have stronger anti-interference capabilities, are unaffected by the surface color and reflectivity of the corn cob, and provide more reliable detection. Installed at the discharge end, they can directly detect whether the root has extended to the correct position, and the preset time can be set to a shorter value (the conveyor speed is usually uniform, and the root length of the corn cob is shorter, so the preset time can be set relatively shorter), resulting in higher cutting position accuracy.

[0058] In one embodiment, the first driving component 113 is a clamping plate control cylinder, which is mounted on the frame 101 and is connected to the movable clamping plates 114 and 115 via a Y-type connector 102.

[0059] Y-type connector 102 is a joint joint with a forked end. One end is threaded to the cylinder piston rod, and the other end is hinged to the lug of the movable clamping plate via a pin. The Y-type connector allows for a certain angular misalignment between the cylinder piston rod and the movable clamping plate during movement, avoiding the jamming phenomenon that may occur with rigid connections. The Y-type connector compensates for the coaxiality error between the cylinder mounting position and the movement trajectory of the movable clamping plate, ensuring smooth opening and closing of the clamping plate and reducing wear on the cylinder seals and guide components. Furthermore, this connection method is easy to assemble and disassemble, facilitating maintenance.

[0060] In one embodiment, the conveying mechanism includes a drive roller, a driven roller, and a conveyor belt 105 mounted on a frame 101; the drive roller is connected to a drive motor assembly 103 via a coupling 104, and the drive motor assembly is mounted on the frame.

[0061] The driving and driven rollers are located at opposite ends of the conveying mechanism, with the conveyor belt 105 surrounding them. The drive motor unit 103 (including the motor and reducer) is fixed to the side of the frame 101, and its output shaft is connected to the shaft end of the driving roller via a coupling 104. Anti-slip textures or blocks can be provided on the surface of the conveyor belt to increase the conveying friction of the corn cobs. The belt conveyor has a simple structure, runs smoothly, and has low noise. The coupling drive avoids slippage that may occur with belt drives, ensuring synchronization between the conveying speed and the motor speed. The drive motor unit is mounted on the frame for easy heat dissipation and maintenance.

[0062] In one embodiment, the corn cob cutting device further includes a roller assembly consisting of multiple rollers 116 for conveying the cut corn cobs to the next processing step.

[0063] In one embodiment, the frame 101 of the corn cob cutting device is equipped with two sets of the aforementioned conveying mechanism, positioning mechanism, in-situ detection mechanism, cutting mechanism, and control system, which can simultaneously perform root cutting on corn cobs in two flow channels, thereby improving the integration of hardware equipment and increasing root cutting efficiency.

[0064] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A corn cob cutting device, characterized in that: It includes a frame, a conveying mechanism, a positioning mechanism, an in-situ detection mechanism, a cutting mechanism, and a control system mounted on the frame; The positioning mechanism includes two sets of movable clamps symmetrically installed above the conveying mechanism, and a first driving member for opening and closing the movable clamps; wherein, each of the movable clamps is provided with a limiting top plate extending toward the other movable clamp at the discharge end; when the two sets of movable clamps are closed, a gap is left between the two limiting top plates for the root of the corn cob to extend out. The in-situ detection mechanism is set in relation to the positioning mechanism and is used to detect whether the corn cob is conveyed between the two sets of movable clamps. The cutting mechanism is provided at the discharge end of the movable clamping plate and is used to cut off the root of the corn cob extending from the gap; The control system is electrically connected to the conveying mechanism, the first driving component, the in-situ detection mechanism, and the cutting mechanism, and is configured to: when the in-situ detection mechanism detects that the corn cob is conveyed between the two sets of movable clamps, control the first driving component to drive the movable clamps to close, while keeping the conveying mechanism running; after a preset time delay from the closing of the movable clamps, control the cutting mechanism to complete the root cutting; after the cutting is completed, control the cutting mechanism to reset, and control the first driving component to drive the movable clamps to open.

2. The corn cob cutting device according to claim 1, characterized in that: The distance between the two sets of movable clamps gradually decreases from the feed end to the discharge end.

3. The corn cob cutting device according to claim 1, characterized in that: The limiting top plate is an arc-shaped plate, and the openings of the two arc-shaped plates are opposite each other.

4. The corn cob cutting device according to claim 1, characterized in that: The cutting mechanism includes a cutter, a second driving member for driving the cutter, a cutting pad, and a third driving member for driving the cutting pad; the cutting pad is arranged opposite to the cutter; after a preset delay, the control system controls the second driving member and the third driving member to drive the cutter and the cutting pad to move towards each other to complete the root cutting.

5. The corn cob cutting device according to claim 4, characterized in that: The cutter is a strip-shaped blade; the second driving component is a root-cutting cylinder, and the cutter is mounted on the piston rod end of the root-cutting cylinder via a blade fixing seat; the third driving component is a pad cylinder, and the cutting pad is mounted on the piston rod end of the pad cylinder via a pad mounting seat.

6. The corn cob cutting device according to claim 4, characterized in that: The frame is provided with a cylinder mounting bracket for mounting the first drive component, the second drive component, and the third drive component.

7. The corn cob cutting device according to claim 1, characterized in that: The in-situ detection mechanism is a photoelectric sensor installed at the feed end or discharge end of the movable clamping plate to detect whether the corn cob has entered between the two movable clamping plates.

8. The corn cob cutting device according to claim 7, characterized in that: The photoelectric sensor is a through-beam photoelectric sensor, which is installed on both sides of the discharge end of the movable clamp.

9. The corn cob cutting device according to claim 1, characterized in that: The first driving component is a clamping plate control cylinder, which is mounted on the frame and is connected to the movable clamping plate via a Y-type connector.

10. The corn cob cutting device according to claim 1, characterized in that: The conveying mechanism includes a drive roller, a driven roller, and a conveyor belt mounted on the frame; the drive roller is connected to a drive motor unit via a coupling, and the drive motor unit is mounted on the frame.

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