Green Chinese onion harvesting and bundling all-in-one machine

Abstract

The utility model belongs to the field of agricultural machinery, and particularly discloses a green Chinese onion harvesting and bundling all-in-one machine which adopts the technical scheme that the green Chinese onion harvesting and bundling all-in-one machine comprises a vehicle body, a bidirectional clamping device, a collecting device, a conveying device and a bundling device, the bundling device is fixed in the middle of the vehicle body, and the bidirectional clamping device is fixedly arranged on one side of the vehicle body; the two-way clamping device is composed of two clamping mechanisms, the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, the other end of the conveying device extends to the position above the bundling device, and the collecting device is fixedly installed at the front ends of the clamping mechanisms and used for pulling out green Chinese onions from the land. The green Chinese onions are transferred to the conveying device through the clamping mechanism and conveyed to the bundling device through the conveying device. The harvesting and bundling integrated machine can achieve harvesting and bundling integrated operation and is high in working efficiency and easy and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of agricultural machinery, especially relates to a scallion harvesting and bundling integrated machine. BACKGROUND

[0002] The traditional planting technology is combined with the existing scientific technology, and new scallion varieties are actively cultivated, so that the yield of scallion plants can be effectively improved, and more benefits can be created for planters.

[0003] The traditional harvesting is mainly manual, and partial mechanized operation can be realized, but manual operation is still needed for vehicle driving, crop harvesting and storage. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of the existing scallion harvesting machine, the utility model provides a scallion harvesting and bundling integrated machine, which can realize integrated operation of harvesting and bundling, has high working efficiency and is simple and convenient to operate.

[0005] To solve the above technical problems, the utility model adopts the technical scheme that the scallion harvesting and bundling integrated machine comprises a vehicle body, a bidirectional clamping device, a collecting device, a conveying device and a bundling device, the bundling device is fixed in the middle of the vehicle body, the bidirectional clamping device is fixedly arranged on one side of the vehicle body, the bidirectional clamping device is composed of two clamping mechanisms, the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, and the other end extends above the bundling device, the collecting device is fixedly installed at the front end of the clamping mechanism and is used for pulling scallions out of the land, the scallions are transferred to the conveying device through the clamping mechanism, and the conveying device sends the scallions to the bundling device.

[0006] Further, one side of the vehicle body is provided with a side frame, four auxiliary wheels are arranged below the side frame, the two clamping mechanisms of the bidirectional clamping device are symmetrically arranged on the two sides of the side frame, the clamping mechanism comprises an inclined U-shaped chassis, the head of the U-shaped chassis is fixedly arranged on the side frame, the tail of the U-shaped chassis faces the ground, two flexible clamping assemblies are symmetrically arranged in the U-shaped chassis, and the two flexible clamping assemblies clamp the scallions to move along the length direction of the U-shaped chassis.

[0007] Further, the flexible clamping assembly comprises a supporting rod fixedly arranged on the U-shaped chassis, driving wheels and driven wheels are arranged at the two ends of the supporting rod respectively, a clamping motor is connected to the driving wheel of the supporting rod, a plurality of guide wheel assemblies are arranged on one side of the supporting rod at intervals, a pressing wheel assembly is arranged on the other side of the supporting rod, and a flexible belt is arranged around the driving wheel, the driven wheel, the guide wheel assembly and the pressing wheel assembly.

[0008] Further, the collecting device comprises connecting frames fixedly arranged at both sides of the tail of the U-shaped chassis, the front end of each connecting frame is provided with a cutter head, the middle part of the connecting frame is provided with a depth wheel, the rear end of the connecting frame is fixedly arranged on a connecting shaft, the other end of the connecting shaft penetrates through the side wall of the U-shaped chassis and is fixedly connected with a driven sprocket, the driven sprocket is connected with a driving sprocket through a chain, and the driving sprocket is driven to rotate by an adjusting motor.

[0009] Further, the middle part of the U-shaped chassis is provided with a soil shaking groove, a soil shaking roller is arranged on the U-shaped chassis at the soil shaking groove, one side of the soil shaking roller is connected with a soil shaking motor, and the soil shaking motor drives the soil shaking roller to rotate.

[0010] Further, the conveying device comprises a conveying frame composed of a horizontal frame and an inclined frame, the horizontal frame is fixedly arranged on the side frame, one end of the inclined frame is fixedly connected with the horizontal frame, and the other end extends upward to above the bundling device, the conveying frame is provided with a conveying belt, the conveying belt is provided with spoon-shaped blocking blocks at intervals, the driving roller of the conveying belt is arranged at the connection position of the horizontal frame and the inclined frame, and both ends of the conveying belt are provided with driven rollers, and the driving roller is driven to rotate by a conveying motor.

[0011] Further, the inclined frame is provided with a buffer frame on one side of the bundling device.

[0012] Further, the bundling device comprises two folding assemblies arranged side by side, and a push rod assembly is arranged between the two folding assemblies, the folding assembly comprises an L-shaped mounting plate, a winding wheel is fixedly arranged on the L-shaped mounting plate, a guide wheel is arranged on the L-shaped mounting plate below the winding wheel, two conveying wheels are arranged in front of the guide wheel, a cutter assembly and a knotting assembly are arranged in front of the conveying wheels in sequence, a horizontal wire conveying groove is horizontally arranged in front of the knotting assembly, an arc-shaped bending rod is arranged at the front end of the horizontal wire conveying groove, a turnover assembly is arranged on the side of the arc-shaped bending rod close to the horizontal wire conveying groove, the turnover assembly drives the arc-shaped bending rod to rotate, the bundling wire wound on the winding wheel passes through the guide wheel, the two conveying wheels, the cutter assembly and the knotting assembly in sequence, and then enters the horizontal wire conveying groove, and the outer side of the arc-shaped bending rod is a reversible arc-shaped folding plate.

[0013] Further, the cutter assembly comprises a supporting bottom plate fixedly arranged on the L-shaped mounting plate, a wire guide groove is fixedly arranged on the supporting bottom plate, and a cutter is arranged on one side of the wire guide groove.

[0014] Further, the knotting assembly comprises a knotting motor fixedly arranged on the supporting bottom plate, and an S-shaped knotting piece is connected with the main shaft of the knotting motor.

[0015] The utility model has the beneficial effects that compared with prior art: the utility model integrates the collecting device and the bundling device together, realizes the integration of harvesting and bundling, and uses the bidirectional clamping device to solve the problem of turning around after harvesting a row of onions, so that the utility model can be used in a narrow space, improves the work efficiency, and greatly reduces the operation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below with reference to the drawings.

[0017] Figure 1 It is the structure schematic drawing of the utility model.

[0018] Figure 2 It is the structure schematic drawing of the bidirectional clamping device and the collecting device.

[0019] Figure 3 It is the schematic diagram of the soil shaking groove.

[0020] Figure 4 It is the structure schematic drawing of the conveying device.

[0021] Figure 5 It is the structure schematic drawing of the bundling device.

[0022] Figure 6 It is the structure schematic drawing of the folding assembly.

[0023] Figure 7 It is Figure 6 It is the local enlarged view of A in the middle.

[0024] In the diagram, 1 is the vehicle body, 11 is the side frame, 12 is the auxiliary wheel, 2 is the bidirectional clamping device, 21 is the clamping mechanism, 22 is the U-shaped base frame, 23 is the flexible clamping assembly, 231 is the support rod, 232 is the driving wheel, 233 is the driven wheel, 234 is the clamping motor, 235 is the guide wheel assembly, 236 is the pressure wheel assembly, 237 is the flexible belt, 24 is the soil-shaking trough, 25 is the soil-shaking roller, 26 is the soil-shaking motor, 3 is the collecting device, 31 is the connecting frame, 32 is the cutter head, 33 is the depth-limiting wheel, 34 is the connecting shaft, 35 is the driven sprocket, 36 is the chain, 37 is the driving sprocket, 38 is the adjusting motor, 4 is the conveying device, 41 is the conveying frame, and 411 is the water... 412 is a flat frame, 42 is a ramp frame, 43 is a conveyor belt, 44 is a spoon-shaped stop, 45 is a drive roller, 46 is a conveyor motor, 47 is a buffer frame, 5 is a bundling device, 51 is a gathering assembly, 511 is an L-shaped mounting plate, 512 is a winding wheel, 513 is a guide wheel, 514 is a conveyor wheel, 515 is a cutter assembly, 5151 is a support base plate, 5152 is a wire trough, 5153 is a cutter, 516 is a knotting assembly, 5161 is a knotting motor, 5162 is a knotting component, 517 is a horizontal wire conveying trough, 518 is an arc-shaped bending rod, 519 is a flipping assembly, 520 is a bundling line, 521 is an arc-shaped gathering plate, and 52 is a push rod assembly. Detailed Implementation

[0025] like Figure 1 As shown, the scallion harvesting and baling machine includes a vehicle body 1, a two-way clamping device 2, a collecting device 3, a conveying device 4, and a baling device 5. The vehicle body 1 includes a frame, motor, differential, brakes, and shock absorption system, etc. The overall structure of the vehicle body 1 adopts an existing structure, so it will not be described in detail here.

[0026] A bidirectional clamping device 2 is installed on one side of the vehicle body 1. The bidirectional clamping device 2 consists of two clamping mechanisms 21, symmetrically arranged around the conveying device 4. A collecting device 3 is installed at the front end of each clamping mechanism 21. The collecting device 3 pulls the scallions from the ground and feeds them into the clamping mechanism 21. The clamping mechanism 21 clamps the scallions and feeds them into the conveying device 4, which then delivers them to the bundling device 5 located at the top center of the vehicle body 1. This bidirectional clamping and conveying system solves the problem of the scallion harvester turning around after harvesting a row of scallions. This design not only improves work efficiency but also greatly reduces operational difficulty.

[0027] To mount the bidirectional clamping device 2 on one side of the vehicle body 1, a side frame 11 is provided on one side of the vehicle body 1. Four auxiliary wheels 12 are provided below the side frame 11. The four auxiliary wheels 12 provide support for the side frame 11 and allow the side frame 11 to move together with the vehicle body 1. The two clamping mechanisms 21 of the bidirectional clamping device 2 are symmetrically arranged on the front and rear sides of the side frame 11.

[0028] likeFigure 2 As shown, the clamping mechanism 21 includes an inclined U-shaped chassis 22, the head of the U-shaped chassis 22 is fixedly arranged on the side frame 11, the tail of the U-shaped chassis 22 is towards the ground, two symmetrical flexible clamping assemblies 23 are arranged in the U-shaped chassis 22, and the two flexible clamping assemblies 23 clamp the green onions to move along the length direction of the U-shaped chassis 22. The flexible clamping assembly 23 clamps the stem of the green onion, and the green onion is transported from the tail of the U-shaped chassis 22 to the head of the U-shaped chassis 22 by rotating the flexible clamping assembly 23.

[0029] The flexible clamping assembly 23 includes a support rod 231 fixedly arranged on the U-shaped chassis 22, both ends of the support rod 231 are respectively provided with a driving wheel 232 and a driven wheel 233, the driving wheel 232 of the support rod 231 is connected with a clamping motor 234, a plurality of guide wheel assemblies 235 are arranged on one side of the support rod 231 at intervals, a pressing wheel assembly 236 is arranged on the other side of the support rod 231, and a flexible belt 237 is arranged around the driving wheel 232, the driven wheel 233, the guide wheel assembly 235 and the pressing wheel assembly 236. The clamping motor 234 drives the driving wheel 232 to rotate, the driving wheel 232 rotates to drive the driven wheel 233 to rotate through the flexible belt 237, and the flexible belt 237 rotates to move the green onions. The flexible belt 237 will not damage the surface of the green onions, and the appearance of the green onions is guaranteed. The guide wheel assembly 235 makes the rotation of the entire flexible belt 237 more smooth, and the pressing wheel assembly 236 makes the flexible belt 237 in a tensioned state, so that the green onions are better clamped.

[0030] The collecting device 3 includes a connecting frame 31 fixedly arranged at both sides of the tail of the U-shaped chassis 22, a cutter head 32 is arranged at the front end of each connecting frame 31, the cutter head 32 is driven to rotate by the motor arranged therein, a depth limiting wheel 33 is arranged at the middle of the connecting frame 31, the rear end of the connecting frame 31 is fixedly arranged on a connecting shaft 34, the other end of the connecting shaft 34 penetrates through the side wall of the U-shaped chassis 22 and is fixedly connected with a driven sprocket 35, the driven sprocket 35 is connected with a driving sprocket 37 through a chain 36, and the driving sprocket 37 is driven to rotate by an adjusting motor 38. The driving sprocket 37 is driven to rotate by the adjusting motor 38, the driving sprocket 37 drives the driven sprocket 35 to rotate through the chain 36, so as to drive the connecting frame 31 to rotate through the connecting shaft 34, and the height of the cutter head 32 is adjusted by the rotation of the connecting frame 31. The depth limiting wheel 33 is used to limit the depth of the cutter head 32 into the soil, so that the cutter head 32 is in a suitable position of the root of the green onion, and the soil around the root is removed by the cutter head 32, and the green onion is taken out of the soil.

[0031] In addition, as shown in FIG. 2, Figure 3As shown, the middle part of the U-shaped chassis 22 is provided with a soil shaking groove 24, and the U-shaped chassis 22 at the soil shaking groove 24 is provided with a soil shaking roller 25, one side of the soil shaking roller 25 is connected with a soil shaking motor 26, and the soil shaking motor 26 drives the soil shaking roller 25 to rotate. During the upward transportation of the green onions along the clamping mechanism 21, when the green onions are transported to the soil shaking groove 24, the soil shaking motor 26 drives the soil shaking roller 25 to rotate, so as to remove the soil at the root of the green onions, which not only reduces the overall weight of the green onions and facilitates the transfer of the conveying device 4, but also cleans the root of the green onions, so that the green onions are more beautiful and are prepared for subsequent bundling.

[0032] As shown in Figure 4 The conveying device 4 comprises a conveying frame 41, the conveying frame 41 is composed of a horizontal frame 411 and an inclined frame 412, the horizontal frame 411 is fixedly arranged on the side frame 11, one end of the inclined frame 412 is fixedly connected with the horizontal frame 411, and the other end extends upwardly to above the bundling device 5, the conveying frame 41 is provided with a conveying belt 42, the conveying belt 42 is provided with spoon-shaped blocking blocks 43 at intervals, a driving roller 44 of the conveying belt 42 is arranged at the connection between the horizontal frame 411 and the inclined frame 412, both ends of the conveying belt 42 are provided with driven rollers 45, and the driving roller 44 is driven to rotate by a conveying motor 46. When the green onions enter the conveying device 4 from the clamping mechanism 21, the green onions are converted from a vertical state to a horizontal lying state under the action of gravity, the green onions are horizontally laid on the conveying belt 42, and the spoon-shaped blocking blocks 43 on the conveying belt 42 drive the green onions to move upwardly. The inclined frame 412 has a large included angle with the ground, the spoon-shaped blocking blocks 43 are additionally arranged on the conveying belt 42, the green onions are prevented from slipping off through the spoon-shaped blocking blocks 43, damage to the green onions is avoided, and the stability of the conveying process is ensured.

[0033] When the green onions are transferred from the conveying device 4 to the bundling device 5, since the height difference between the two is large, in order to prevent damage to the green onions, a buffer frame 47 is arranged on one side of the bundling device 5.

[0034] As shown in Figures 5-7As shown, the bundling device 5 includes two gathering assemblies 51 arranged side by side, and a push rod assembly 52 arranged between the two gathering assemblies 51. The gathering assembly 51 includes an L-shaped mounting plate 511, a winding wheel 512 fixedly arranged on the L-shaped mounting plate 511, a guide wheel 513 arranged below the L-shaped mounting plate 511, two conveying wheels 514 arranged in front of the guide wheel 513, a cutter assembly 515 and a knotting assembly 516 arranged in front of the conveying wheels 514 in sequence, a horizontal wire conveying groove 517 horizontally arranged in front of the knotting assembly 516, an arc-shaped bending lever 518 arranged at the front end of the horizontal wire conveying groove, a turnover assembly 519 arranged on the side of the arc-shaped bending lever 518, the turnover assembly 519 driving the arc-shaped bending lever 518 to rotate, a bundling wire 520 wound on the winding wheel 512 passing through the guide wheel 513, between the two conveying wheels 514, behind the cutter assembly 515 and the knotting assembly 516, and into the horizontal wire conveying groove, and an arc-shaped gathering plate 521 arranged on the outside of the arc-shaped bending lever 518 and being reversible.

[0035] The cutter assembly 515 includes a support bottom plate 5151 fixedly arranged on the L-shaped mounting plate 511, and a guide wire groove 5152 fixedly arranged on the support bottom plate 5151, one side of the guide wire groove 5152 being provided with a cutter 5153. The knotting assembly 516 includes a knotting motor 5161 fixedly arranged on the support bottom plate 5151, and an S-shaped knotting piece 5162 connected to the main shaft of the knotting motor 5161.

[0036] The working process of the bundling device 5 is as follows: when the leeks fall in front of the gathering assembly 51, a gravity sensor arranged at the front end of the gathering assembly 51 detects the weight of the leeks, and when the weight reaches a specified value, the turnover assembly 519 drives the arc-shaped bending lever 518 and the arc-shaped gathering plate 521 to turn inward, thereby driving the bundling wire 520 to turn inward, so that the free end of the bundling wire 520 is folded to the position of the knotting piece 5162, then the S-shaped knotting piece 5162 rotates, so that the bundling wire 520 turns over, thereby bundling the leeks, and after the bundling is completed, the push rod assembly 52 pushes the leeks out of the bundling device 5. The push rod assembly 52 can be a pneumatic device or a mechanical structure, as long as it can push the leeks out.

[0037] The automatic bundling makes the collection of leeks more standardized. According to different needs, the force and speed of bundling can be automatically adjusted to ensure that the bundling effect reaches the best state. Not only the production efficiency is improved, but also the labor cost is greatly reduced.

[0038] The embodiments of the utility model are described in detail in combination with the drawings above, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. An integrated machine for harvesting and bundling green onions, characterized in that, The utility model relates to a double -sided clamping device, collection device, conveying device and baling device are arranged on the vehicle body, and the baling device is fixed in the middle of the vehicle body, the double -sided clamping device is fixedly arranged on one side of the vehicle body, the double -sided clamping device is composed of two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, the other end extends to the top of the baling device, the collection device is fixedly installed on the front end of the clamping mechanism and is used for pulling the leek out from the land, the leek is transferred to the conveying device by the clamping mechanism, and the leek is sent to the baling device by the conveying device.

2. The integrated harvesting and bundling machine for welsh onions according to claim 1, characterized in that: The utility model relates to a double -sided clamping device, collection device, conveying device and baling device are arranged on the vehicle body, and the baling device is fixed in the middle of the vehicle body, the double -sided clamping device is fixedly arranged on one side of the vehicle body, the double -sided clamping device is composed of two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, the other end extends to the top of the baling device, the collection device is fixedly installed on the front end of the clamping mechanism and is used for pulling the leek out from the land, the leek is transferred to the conveying device by the clamping mechanism, and the leek is sent to the baling device by the conveying device.

3. The integrated harvesting and bundling machine for welsh onions according to claim 2, characterized in that: The utility model relates to a double -sided clamping device, collection device, conveying device and baling device are arranged on the vehicle body, and the baling device is fixed in the middle of the vehicle body, the double -sided clamping device is fixedly arranged on one side of the vehicle body, the double -sided clamping device is composed of two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, the other end extends to the top of the baling device, the collection device is fixedly installed on the front end of the clamping mechanism and is used for pulling the leek out from the land, the leek is transferred to the conveying device by the clamping mechanism, and the leek is sent to the baling device by the conveying device.

4. The integrated harvesting and bundling machine for welsh onions according to claim 3, characterized in that: The utility model relates to a double -sided clamping device, collection device, conveying device and baling device are arranged on the vehicle body, and the baling device is fixed in the middle of the vehicle body, the double -sided clamping device is fixedly arranged on one side of the vehicle body, the double -sided clamping device is composed of two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, the other end extends to the top of the baling device, the collection device is fixedly installed on the front end of the clamping mechanism and is used for pulling the leek out from the land, the leek is transferred to the conveying device by the clamping mechanism, and the leek is sent to the baling device by the conveying device.

5. The integrated harvesting and bundling machine for welsh onions according to claim 4, characterized in that: The utility model relates to a double -sided clamping device, collection device, conveying device and baling device are arranged on the vehicle body, and the baling device is fixed in the middle of the vehicle body, the double -sided clamping device is fixedly arranged on one side of the vehicle body, the double -sided clamping device is composed of two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged with the conveying device as the center, one end of the conveying device is located between the two clamping mechanisms, the other end extends to the top of the baling device, the collection device is fixedly installed on the front end of the clamping mechanism and is used for pulling the leek out from the land, the leek is transferred to the conveying device by the clamping mechanism, and the leek is sent to the baling device by the conveying device.

6. The integrated harvesting and bundling machine for welsh onions according to claim 1 or 5, characterized in that: The conveying device (4) comprises a conveying frame (41), the conveying frame (41) is composed of a horizontal frame (411) and an inclined frame (412), the horizontal frame (411) is fixedly arranged on the side frame (11), the inclined frame (412) is fixedly connected with the horizontal frame (411) at one end and extends obliquely upwards to above the bundling device (5) at the other end, the conveying frame (41) is provided with a conveying belt (42), the conveying belt (42) is provided with spoon-shaped blocking blocks (43) at intervals, the driving roller (44) of the conveying belt (42) is arranged at the connection position of the horizontal frame (411) and the inclined frame (412), and the two ends of the conveying belt (42) are provided with driven rollers (45), and the driving roller (44) is driven to rotate by the conveying motor (46).

7. The integrated harvesting and bundling machine for green onions according to claim 6, characterized in that: The inclined frame (412) is provided with a buffer frame (47) on one side of the bundling device (5).

8. The integrated harvesting and bundling machine for green onions according to claim 6, characterized in that: The bundling device (5) comprises two folding assemblies (51) arranged side by side, and a push rod assembly (52) is arranged between the two folding assemblies (51), the folding assembly (51) comprises an L-shaped mounting plate (511), the L-shaped mounting plate (511) is fixedly provided with a winding wheel (512), the L-shaped mounting plate (511) below the winding wheel (512) is provided with a guide wheel (513), two conveying wheels (514) are arranged in front of the guide wheel (513), a cutter assembly (515) and a knotting assembly (516) are arranged in front of the conveying wheels (514) in sequence, a horizontal wire conveying groove (517) is horizontally arranged in front of the knotting assembly (516), an arc-shaped bending rod (518) is arranged at the front end of the horizontal wire conveying groove, a turnover assembly (519) is arranged on the side of the arc-shaped bending rod (518) close to the horizontal wire conveying groove, the turnover assembly (519) drives the arc-shaped bending rod (518) to rotate, a bundling wire (520) wound on the winding wheel (512) passes through the guide wheel (513), the two conveying wheels (514), the cutter assembly (515) and the knotting assembly (516) in sequence and then enters the horizontal wire conveying groove, and the outer side of the arc-shaped bending rod (518) is a reversible arc-shaped folding plate (521).

9. The integrated harvesting and bundling machine for green onions of claim 8, wherein: The cutter assembly (515) comprises a supporting bottom plate (5151) fixedly arranged on the L-shaped mounting plate (511), and a wire guide groove (5152) is fixedly arranged on the supporting bottom plate (5151), and a cutter (5153) is arranged on one side of the wire guide groove (5152).

10. The integrated harvesting and bundling machine for green onions according to claim 9, characterized in that: The knotting assembly (516) comprises a knotting motor (5161) fixedly arranged on the supporting bottom plate (5151), and an S-shaped knotting piece (5162) is connected with the main shaft of the knotting motor (5161).

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