Chinese cabbage core wrapping and bundling machine

Abstract

According to the Chinese cabbage core bundling machine, the clamping mechanism can clamp and tighten Chinese cabbages, the tensioning mechanism can clamp the bundling rope on the rope drum and pull the bundling rope outwards, the rope picking frame on the rope picking mechanism moves towards the bundling rope from the lower portion, the bundling rope forms a lantern ring when the picking rod rotates by 180 degrees, and therefore the bundling rope can be bundled. Then a rope expanding rod at the lower end of the rope expanding mechanism moves to a rope picking frame at the minimum interval, then the rope expanding rod moves towards the two sides to open the lantern ring, then the rope expanding rod moves towards the clamping mechanism and stops when moving to one side of the Chinese cabbage in the center of the clamping mechanism, and the rope picking frame picks up the middle of the lantern ring on the bundling rope to continue to move till the lantern ring can surround the Chinese cabbage; then the rope picking frame descends, the lantern ring sleeves the Chinese cabbage, the rope picking frame rotates by 180 degrees to form a lantern ring again, the shifting rod drives the newly formed lantern ring to sleeve the Chinese cabbage again, and at the moment, the Chinese cabbage is bundled by two rings of lantern rings. The device is high in automation degree, continuous operation can be achieved, the knotting efficiency is improved, and manual labor intensity is reduced through automatic knotting.

Description

Technical Field

[0001] The utility model relates to the field of Chinese cabbage heading and bundling, and more specifically, to a Chinese cabbage heading and bundling machine. Background Art

[0002] In agricultural production practice, the harvesting and processing of Chinese cabbage is an important link. When Chinese cabbage grows to a certain stage, it needs to be tied with ropes, usually half a month before harvesting or before the Frost's Descent. The main reasons for tying Chinese cabbage are as follows:

[0003] 1. Higher yield after tying

[0004] Chinese cabbage itself grows into a heading structure. After tying, it further promotes better heading of Chinese cabbage. Moreover, the inner leaves are still growing after heading, which can promote better growth of Chinese cabbage and thus higher yield.

[0005] 2. Frost prevention

[0006] After Chinese cabbage heads, even if frost occurs during the frost period, only the outermost few leaves will be damaged by frost, and the inner leaves will not be damaged. Because after being wrapped, the inner leaves carry out respiration to generate heat, and the temperature inside is much higher than that outside after being wrapped.

[0007] 3. Better appearance

[0008] After the Chinese cabbage heads and grows tightly, and then is cut down, each Chinese cabbage is very firm, rather than loose. This makes it more marketable.

[0009] However, when small farms tie Chinese cabbage at present, it is extremely inconvenient for one person to complete this work. Two people need to cooperate. One person gathers the Chinese cabbage leaves, and the other person ties the upper part of the Chinese cabbage. For an entire Chinese cabbage garden, this is both time-consuming and laborious. Content of the Utility Model

[0010] Based on the above technical problems, the utility model proposes a Chinese cabbage heading and bundling machine.

[0011] A Chinese cabbage heading and bundling machine includes: a frame, a clamping mechanism, a rope picking mechanism, a tensioning mechanism, a rope expanding mechanism, and a separating mechanism. The frame is a three-dimensional frame made of vertical rods and horizontal rods. Walking wheels are provided at the lower end of the frame, and a support frame is provided in the middle of the frame;

[0012] A vertical bracket is provided between the support frame and the bottom horizontal rod. The clamping mechanism is slidably installed on the slide rail inside the bracket. The clamping mechanism is driven by a first motor to move up and down. The clamping mechanism controls the tightening of two clamping jaws through a clamping motor;

[0013] The tensioning mechanism is fixedly installed in the middle of the long slide rail on one side of the support frame. The long slide rail is arranged along the Y-axis. The tensioning mechanism is located above the clamping mechanism. One end of the long slide rail is provided with a rope drum, and a binding rope is wound around the rope drum. The tensioning mechanism can clamp the binding rope and move along the long slide rail.

[0014] Two meshing pressing wheels are provided at the front of the rope drum. One of the pressing wheels is driven to rotate by a pressing motor. The binding rope passes through between the two pressing wheels. A cutting mechanism is arranged below the rope drum, and the cutting mechanism can cut the binding rope.

[0015] A horizontal bottom plate is arranged in the middle of the frame. The two ends of the bottom plate are slidably installed on two vertical slide rails in the middle of the frame. The bottom plate is arranged along the X-axis and is perpendicular to the support frame. The bottom plate is controlled by a second motor to move up and down along the vertical slide rails. A horizontal slide rail is provided on the front side of the bottom plate. The rope picking mechanism is slidably installed on the horizontal slide rail and is controlled by a third motor to slide along the horizontal slide rail. The rope picking mechanism includes a connecting frame, a sliding seat, a fourth motor, and a rope picking rod. The sliding seat is slidably installed on the horizontal slide rail. The connecting frame is fixed on the sliding seat. The fourth motor is fixed on the front side of the connecting frame. The output shaft of the fourth motor is connected to the rope picking rod. The rope picking rod is vertically downward. A rope picking frame is provided at the lower end of the rope picking rod. The rope picking frame is three picking rods distributed in an equilateral triangle, and the picking rods are located above the clamping mechanism.

[0016] The rope expanding mechanism includes two rope expanding rods and two fixed rods. The rope expanding rods are arranged outside the tensioning mechanism. The front ends of the rope expanding rods are provided with barbs and are located above the tensioning mechanism. The rope expanding rods can expand synchronously to both sides. One end of the rope expanding rod is provided with an arc-shaped elbow. The fixed rod is an L-shaped rod. The lower end of the fixed rod is fixed on the support frame, and its upper end is located above the tensioning mechanism.

[0017] The separating mechanism is located opposite to the rope expanding mechanism. The separating mechanism includes a dial rod. The upper end of the dial rod is fixed on a dial rod seat. The dial rod seat is controlled to move along the X-axis and the Y-axis. The lower end of the dial rod is on one side of the rope picking rod.

[0018] Preferably, the clamping mechanism includes a clamping seat, two clamping claws, a clamping motor, and a first motor. The rear end of the clamping seat is slidably installed on the slide rail. Two meshing gears are provided on the upper side of the front part of the clamping seat. The rear ends of the two clamping claws are installed on the two gears. The clamping motor drives one of the gears to rotate. The first motor is fixed on the support frame. The output shaft of the first motor is connected to a first lead screw shaft. The first lead screw and the clamping seat form a lead screw lifting mechanism.

[0019] Preferably, a fifth motor is provided at the other end of the long slide rail. The output shaft of the fifth motor is connected to the second lead screw shaft. The tensioning mechanism and the second lead screw form a lead screw transverse movement mechanism.

[0020] Preferably, the tensioning mechanism includes a tensioning seat, a steering gear, and a rope clamp. The tensioning seat is slidably mounted on the long slide rail. Two meshing tensioning gears are provided on the tensioning seat. The lower ends of the two rope clamps are respectively connected to the two tensioning gears. The upper ends of the two rope clamps are butted to clamp the binding rope. One of the tensioning gears is driven to rotate by the steering gear.

[0021] Preferably, a runner is provided at each end of the bottom plate. A conveyor belt is provided between the runners. The runners are driven to rotate by a third motor. The conveyor belt is connected to the sliding seat. The operation of the conveyor belt can drive the sliding seat to move along the transverse slide rail.

[0022] Preferably, the rope expanding mechanism further includes a connecting rod, a rope expanding slide rail, a first rope expanding motor, a second rope expanding motor, and a chute plate. The rope expanding rod is fixed to the lower end of the connecting rod. The rope expanding slide rail is fixed to the cross bar at the top of the frame along the X-axis. The first rope expanding motor is fixed to one end of the rope expanding slide rail. A rope expanding lead screw is connected to the output shaft of the first rope expanding motor. A motor seat is provided on the rope expanding lead screw. The second rope expanding motor is fixedly installed on the motor seat. The chute plate is arranged on the front side of the motor seat. Chutes are provided in the upper and lower walls of the chute plate. A slidingly mounted rack is provided in each chute. The front end of the second rope expanding motor is connected to a rope expanding gear. The rope expanding gear cooperates with the two racks. The rope expanding gear can drive the two racks to move in opposite directions. The upper ends of the connecting rod are respectively connected and fixed to the two racks.

[0023] Preferably, the lever seat is slidably mounted on the lever slide rail. The lever slide rail is also arranged on the top of the frame and is located opposite to the rope expanding slide rail. The lever slide rail is driven to move along the Y-axis by a first lever motor and a first lever lead screw provided on the side of the cross bar. The lever seat is driven to move along the lever slide rail by a second lever motor and a second lever lead screw.

[0024] Preferably, the lower end of the lever is bent horizontally.

[0025] Beneficial effects: The baler has a high degree of automation, reduces the labor intensity of the baling work, improves the efficiency of baling Chinese cabbages, and is more convenient to control the tightness of baling compared with other baling equipment.

[0026] Specifically: The clamping mechanism can clamp and tighten the Chinese cabbage. The tensioning mechanism can clamp and pull out the binding rope on the rope drum. After the binding rope is pulled out, the middle section thereof is located below the top of the fixed rod of the rope expanding mechanism. At this time, the rope picking rod moves to the position of the binding rope, and the rope picking frame on the rope picking rod moves from below to the binding rope. The section of the binding rope between the fixed rods is pulled up by the picking rod. Secondly, the picking rod rotates 180°. At this time, a loop is formed at the middle of the binding rope at the picking rod, and the tensioning mechanism retracts a certain distance to reserve enough length. Then, the rope expanding rod at the lower end of the rope expanding mechanism moves to the position of the rope picking frame at the minimum spacing. The arc-shaped elbow at the front end of the rope expanding rod is inserted into the loop. Subsequently, the rope expanding rod moves to both sides to expand the loop. Then, the rope expanding rod moves towards the clamping mechanism and stops when it moves to one side of the Chinese cabbage at the center of the clamping mechanism. Then, the rope picking frame moves towards the clamping device. The rope picking frame picks up the middle of the loop on the binding rope and continues to move until the loop can surround the Chinese cabbage. Then, the rope picking frame descends. At this time, the loop is sleeved on the Chinese cabbage. Then, the rope picking frame rotates 180° to form a loop again. At this time, the disengaging mechanism is activated to misalign and align the lever and the rope picking frame. Then, the lever is moved to one side of the rope picking frame. The binding rope is dialed off the rope picking frame by the lever and then continues to drive it to move to the other side of the Chinese cabbage, driving the newly formed loop to be sleeved on the Chinese cabbage again. At this time, there are two loops on the Chinese cabbage. After the above actions are completed, the binding rope is re-tightened by the tensioning mechanism. Finally, the tensioning mechanism releases the binding rope, and the front end thereof cuts off the binding rope by the cutting mechanism to complete the bundling. After the bundling is completed, each mechanism returns to its original position. Brief Description of the Drawings

[0027] Figure 1 The structural schematic diagram of the present utility model is shown;

[0028] Figure 2 The structural schematic diagram of the clamping mechanism is shown;

[0029] Figure 3 The structural schematic diagram of the tensioning mechanism is shown;

[0030] Figure 4 The structural schematic diagram of the rope expanding mechanism is shown;

[0031] Figure 5 The structural schematic diagram of the rope picking mechanism is shown;

[0032] Figure 6 The structural schematic diagram of the disengaging mechanism is shown. Detailed Description of the Preferred Embodiment

[0033] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0034] AsFigures 1 to 6 A Chinese cabbage bundling machine shown in the figure includes: a frame 1, a clamping mechanism 5, a rope picking mechanism 6, a tensioning mechanism 7, a rope expanding mechanism 8, and a separating mechanism 9. The frame 1 is a three-dimensional frame made of a vertical rod 101 and a horizontal rod 102. A traveling wheel 3 is provided at the lower end of the frame 1, and a support frame 2 is provided in the middle of the frame 1.

[0035] A vertical support 4 is provided between the support frame 2 and the bottom horizontal rod 102. The clamping mechanism 5 is slidably installed on the slide rail 505 inside the support 4. The clamping mechanism 5 includes a clamping seat 501, two clamping claws 502, a clamping motor 503, and a first motor 504. The clamping mechanism 5 is driven by the first motor 504 to move up and down. The clamping mechanism 5 controls the tightening of the two clamping claws 502 through the clamping motor 503. The rear end of the clamping seat 501 is slidably installed on the slide rail 505. Two meshing gears 506 are provided on the upper side of the front part of the clamping seat 501. The rear ends of the two clamping claws 502 are installed on the two gears 506. The clamping motor 503 drives one of the gears 506 to rotate; the first motor 504 is fixed on the support frame 2, and the output shaft of the first motor 504 is axially connected to the first lead screw 507. The first lead screw 507 and the clamping seat 501 form a lead screw lifting mechanism.

[0036] The tensioning mechanism 7 is fixedly installed in the middle of a long slide rail 701 on one side of the support frame 2. The long slide rail 701 is arranged along the Y-axis. The tensioning mechanism 7 is located above the clamping mechanism 5. A rope drum 702 is provided at one end of the long slide rail 701. A bundling rope 703 is wound around the rope drum 702. The tensioning mechanism 7 can clamp the bundling rope 703 and move along the long slide rail 701; specifically, the tensioning mechanism includes a tensioning seat 704, a steering gear 705, and a rope clamp 706. The tensioning seat 704 is slidably installed on the long slide rail 701. A fifth motor 707 is provided at the other end of the long slide rail 701. The output shaft of the fifth motor 707 is axially connected to the second lead screw 708. The tensioning mechanism and the second lead screw 708 form a lead screw transverse movement mechanism. Two meshing tensioning gears 709 are provided on the tensioning seat 704. The lower ends of the two rope clamps 706 are respectively connected to the two tensioning gears 709. The upper ends of the two rope clamps 706 are butted to clamp the bundling rope 703. One of the tensioning gears 709 is driven by the steering gear 705 to rotate.

[0037] Two meshing pressing wheels 710 are provided in front of the rope drum 702. One of the pressing wheels 710 is driven by a pressing motor 711 to rotate. The bundling rope 703 passes through between the two pressing wheels 710. A cutting mechanism 712 is provided below the rope drum 702. The cutting mechanism 712 is a pair of scissors driven by a cutting motor 713. The cutting mechanism 712 can cut the bundling rope 703.

[0038] In the middle of the frame 1, there is a horizontal bottom plate 601. The two ends of the bottom plate 601 are slidably installed on two vertical slide rails 602 in the middle of the frame 1. The bottom plate 601 is arranged along the X-axis and is perpendicular to the support frame 2. The bottom plate 601 is controlled by the second motor 603 and the second motor lead screw 612 to move up and down along the vertical slide rails 602. On the front side of the bottom plate 601, there is a horizontal slide rail 604. The tensioning mechanism 7 is slidably installed on the horizontal slide rail 604 and is controlled by the third motor 605 to slide along the horizontal slide rail 604. The rope picking mechanism 6 includes a connecting frame 606, a sliding seat 607, a fourth motor 608, and a rope picking rod 609. The sliding seat 607 is slidably installed on the horizontal slide rail 604. The connecting frame 606 is fixed on the sliding seat 607. The fourth motor 608 is fixed on the front side of the connecting frame 606. The output shaft of the fourth motor 608 is connected to the rope picking rod 609. The rope picking rod 609 is vertically downward. At the lower end of the rope picking rod 609, there is a rope picking frame 610. The rope picking frame 610 is three picking rods 611 distributed in an equilateral triangle. The picking rods 611 are located above the clamping mechanism 5;

[0039] The rope expanding mechanism 8 includes two rope expanding rods 801 and two fixing rods 813. The rope expanding rods 801 are arranged outside the tensioning mechanism 7. The front ends of the rope expanding rods 801 are provided with barbs and are located above the tensioning mechanism 7. The rope expanding rods 801 can expand synchronously to both sides. One end of the rope expanding rod 801 is provided with an arc-shaped elbow 802. The fixing rod 813 is an L-shaped rod. The lower end of the fixing rod 813 is fixed on the support frame 2, and its upper end is located above the tensioning mechanism 7. The rope expanding mechanism 8 also includes a connecting rod 803, a rope expanding slide rail 804, a first rope expanding motor 805, a second rope expanding motor 806, and a chute plate 807. The rope expanding rod 801 is fixed at the lower end of the connecting rod 803. The rope expanding slide rail 804 is fixed along the X-axis on the cross bar 102 at the top of the frame 1. The first rope expanding motor 805 is fixed at one end of the rope expanding slide rail 804. A rope expanding lead screw 808 is connected to the output shaft of the first rope expanding motor 805. There is a motor seat 809 on the rope expanding lead screw 808. The second rope expanding motor 806 is fixedly installed on the motor seat 809. The chute plate 807 is arranged on the front side of the motor seat 809. Chutes 810 are provided in the upper and lower walls of the chute plate 807. A slidingly installed rack 811 is provided in each chute 810. The front end of the second rope expanding motor 806 is connected to a rope expanding gear 812. The rope expanding gear 812 cooperates with the two racks 811. The rope expanding gear 812 can drive the two racks 811 to move in opposite directions. The upper ends of the connecting rod 803 are respectively connected and fixed to the two racks 811.

[0040] A runner 613 is provided at each end of the bottom plate 601. A conveyor belt 614 is arranged between the runners 613. The runners are driven by the third motor 605 to rotate. The conveyor belt 614 is connected to the sliding seat 607. The operation of the conveyor belt 614 can drive the sliding seat 607 to move along the horizontal slide rail 604.

[0041] The disengaging mechanism 9 is located opposite to the rope expanding mechanism 8. The disengaging mechanism 9 includes a lever 901. The upper end of the lever 901 is fixed on the lever seat 902. The lever seat 902 is controlled to move along the X-axis and Y-axis. The lower end of the lever 901 is on one side of the rope picking rod 609. The lever seat 902 is slidably installed on the lever slide rail 903. The lever slide rail 903 is also arranged on the top of the frame 1 and is located opposite to the rope expanding slide rail 804. The lever slide rail 903 is driven to move along the Y-axis by a first lever motor 904 and a first lever lead screw 905 arranged on the side of the cross bar 102. The lever seat 902 is driven to move along the lever slide rail 903 by a second lever motor 906 and a second lever lead screw 907. The lower end of the lever 901 is bent horizontally.

[0042] The clamping mechanism 5 can clamp and tighten the Chinese cabbage. The tensioning mechanism 7 can clamp and pull outwards the bundling rope 703 on the rope drum 702. After the bundling rope 703 is pulled out, the middle section thereof is located below the top of the fixed rod 813 of the rope expanding mechanism 8. At this time, the rope picking mechanism 6 moves to the bundling rope 703. The rope picking frame 610 on the rope picking mechanism 6 moves towards the bundling rope 703 from below. A section of the bundling rope 703 between the fixed rods 813 is pulled up by the picking rod. Secondly, the picking rod rotates 180°. At this time, a loop is formed at the middle part of the bundling rope 703 at the picking rod. And the tensioning mechanism 7 retracts a certain distance to reserve enough length. Then, the rope expanding rod 801 at the lower end of the rope expanding mechanism 8 moves to the rope picking frame 610 at the minimum spacing. The arc-shaped elbow 802 at the front end of the rope expanding rod 801 is inserted into the loop. Subsequently, the rope expanding rod 801 moves to both sides to expand the loop. Then, the rope expanding rod 801 moves towards the clamping mechanism 5 and stops when it moves to one side of the Chinese cabbage at the center of the clamping mechanism 5. Then, the rope picking frame 610 is moved towards the clamping device. The rope picking frame 610 picks up the middle part of the loop on the bundling rope 703 and continues to move until the loop can surround the Chinese cabbage. Then, the rope picking frame 610 descends. At this time, the loop is sleeved on the Chinese cabbage. Then, the rope picking frame 610 rotates 180° to form a loop again. At this time, the disengaging mechanism 9 is activated to misalign and align the lever 901 and the rope picking frame 610. Then, the lever 901 is moved to one side of the rope picking frame 610. The bundling rope 703 is dialed off from the rope picking frame 610 by the lever 901 and then continues to drive it to move to the other side of the Chinese cabbage, driving the newly formed loop to be sleeved on the Chinese cabbage again. At this time, there are two loops on the Chinese cabbage. After the above actions are completed, the bundling rope 703 is re-tightened by the tensioning mechanism 7. Finally, the tensioning mechanism 7 releases the bundling rope 703, and the front end thereof uses the cutting mechanism to cut off the bundling rope 703 to complete the bundling. After the bundling is completed, each mechanism returns to its original position.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A Chinese cabbage heart-packing and bundling machine, characterized in that, Including: A frame, a clamping mechanism, a rope picking mechanism, a tensioning mechanism, a rope expanding mechanism, and a separating mechanism. The frame is a three-dimensional frame made of vertical rods and cross bars. Walking wheels are provided at the lower end of the frame, and a support frame is provided in the middle of the frame. A vertical bracket is provided between the support frame and the bottom cross bar. The clamping mechanism is slidably installed on the slide rail inside the bracket. The clamping mechanism is driven by a first motor to move up and down, and the clamping of two clamping jaws controlled by a clamping motor. The tensioning mechanism is fixedly installed in the middle of a long slide rail on one side of the support frame. The long slide rail is arranged along the Y-axis. The tensioning mechanism is located above the clamping mechanism. A rope drum is provided at one end of the long slide rail, and a binding rope is wound around the rope drum. The tensioning mechanism can clamp the binding rope and move along the long slide rail. Two meshing pressing wheels are provided in front of the rope drum. One of the pressing wheels is driven by a pressing motor to rotate. The binding rope passes between the two pressing wheels. A cutting mechanism is provided below the rope drum, and the cutting mechanism can cut the binding rope. A horizontal bottom plate is provided in the middle of the frame. The two ends of the bottom plate are slidably installed on two vertical slide rails in the middle of the frame. The bottom plate is arranged along the X-axis and is perpendicular to the support frame. The bottom plate is controlled by a second motor to move up and down along the vertical slide rail. A horizontal slide rail is provided on the front side of the bottom plate. The rope picking mechanism is slidably installed on the horizontal slide rail and is controlled by a third motor to slide along the horizontal slide rail. The rope picking mechanism includes a connecting frame, a sliding seat, a fourth motor, and a rope picking rod. The sliding seat is slidably installed on the horizontal slide rail. The connecting frame is fixed on the sliding seat. The fourth motor is fixed on the front side of the connecting frame. The output shaft of the fourth motor is connected to the rope picking rod. The rope picking rod is vertically downward. A rope picking frame is provided at the lower end of the rope picking rod. The rope picking frame is three picking rods distributed in an equilateral triangle. The picking rods are located above the clamping mechanism. The rope expanding mechanism includes two rope expanding rods and two fixed rods. The rope expanding rods are arranged outside the tensioning mechanism. The front ends of the rope expanding rods are provided with barbs and are located above the tensioning mechanism. The rope expanding rods can expand synchronously to both sides. One end of the rope expanding rod is provided with an arc-shaped elbow. The fixed rod is an L-shaped rod. The lower end of the fixed rod is fixed on the support frame, and its upper end is located above the tensioning mechanism. The separating mechanism is located opposite to the rope expanding mechanism. The separating mechanism includes a lever. The upper end of the lever is fixed on a lever seat. The lever seat is controlled to move along the X-axis and the Y-axis. The lower end of the lever is on one side of the rope picking rod.

2. The Chinese cabbage heading and bundling machine according to claim 1, characterized in that, The clamping mechanism includes a clamping seat, two clamping jaws, the clamping motor, and the first motor. The rear end of the clamping seat is slidably installed on the slide rail. Two meshing gears are provided on the upper side of the front part of the clamping seat. The rear ends of the two clamping jaws are installed on the two gears. The clamping motor drives one of the gears to rotate. The first motor is fixed on the support frame. The output shaft of the first motor is connected to a first lead screw shaft. The first lead screw and the clamping seat form a lead screw lifting mechanism.

3. The Chinese cabbage heading and bundling machine according to claim 1, characterized in that, The other end of the long slide rail is provided with a fifth motor, the output shaft of the fifth motor is connected to the second lead screw shaft, and the tensioning mechanism and the second lead screw form a lead screw transverse movement mechanism.

4. The Chinese cabbage heading and bundling machine according to claim 3, characterized in that, The tensioning mechanism includes a tensioning seat, a steering gear, and a rope clamp. The tensioning seat is slidably mounted on the long slide rail. Two meshing tensioning gears are provided on the tensioning seat. The lower ends of the two rope clamps are respectively connected to the two tensioning gears. The upper ends of the two rope clamps are butted to clamp the binding rope, and one of the tensioning gears is driven to rotate by the steering gear.

5. The Chinese cabbage heart-tying and bundling machine according to claim 1, characterized in that, One runner is provided at each end of the bottom plate. A conveyor belt is provided between the runners. The runners are driven to rotate by a third motor. The conveyor belt is connected to the sliding seat, and the operation of the conveyor belt can drive the sliding seat to move along the transverse slide rail.

6. The Chinese cabbage heading and bundling machine according to claim 1, wherein The rope expanding mechanism further includes a connecting rod, a rope expanding slide rail, a first rope expanding motor, a second rope expanding motor, and a chute plate. The rope expanding rod is fixed to the lower end of the connecting rod. The rope expanding slide rail is fixed to the cross bar at the top of the frame along the X axis. The first rope expanding motor is fixed to one end of the rope expanding slide rail. A rope expanding lead screw is connected to the output shaft of the first rope expanding motor. A motor seat is provided on the rope expanding lead screw. The second rope expanding motor is fixedly installed on the motor seat. The chute plate is arranged on the front side of the motor seat. Chutes are provided in the upper and lower walls of the chute plate. A sliding-mounted rack is provided in each chute. The front end of the second rope expanding motor is connected with a rope expanding gear. The rope expanding gear cooperates with the two racks. The rope expanding gear can drive the two racks to move in opposite directions. The upper ends of the connecting rod are respectively connected and fixed to the two racks.

7. The Chinese cabbage heading and bundling machine according to claim 6, characterized in that, The lever seat is slidably mounted on the lever slide rail. The lever slide rail is also arranged on the top of the frame and is located opposite to the rope expanding slide rail. The lever slide rail is driven to move along the Y axis by a first lever motor and a first lever lead screw arranged on the side of the cross bar. The lever seat is driven to move along the lever slide rail by a second lever motor and a second lever lead screw.

8. The Chinese cabbage heading and tying machine according to claim 1, characterized in that, The lower end of the lever is bent horizontally.

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