Clamping jaw flail knife type grape stem shearing device

Abstract

The invention relates to a clamping jaw flail knife type grape fruit stem shearing device, and belongs to the technical field of agricultural harvesting machinery, the clamping jaw flail knife type grape fruit stem shearing device comprises a supporting rod, one end of the supporting rod is fixedly provided with a bearing rod, the bearing rod is slidably connected with two first sliding rods, and the two ends of each first sliding rod are fixedly connected with fixing rods; a second sliding rod is arranged above each first sliding rod, and the upper ends of the two fixing rods on the first sliding rods are fixedly connected with the second sliding rods; a net bag is arranged between the fixing rods, and the side wall of the net bag is fixed to the fixing rods; the bearing rod is provided with a first moving assembly used for driving the two first sliding rods to move oppositely. The supporting rod is provided with a second moving assembly used for driving the two first sliding rods to move oppositely. One ends of the two second sliding rods are jointly provided with a moving rod; a cutter is installed on the moving rod, a driving assembly used for driving the moving rod to move back and forth along the second sliding rod is further arranged on the supporting rod, and the effect of improving the working efficiency of grape picking is achieved.

Description

Technical Field

[0001] This application relates to the technical field of agricultural harvesting machinery, and in particular to a gripper-type grape stem shearing device. Background Technology

[0002] Grapes are rich in nutrients and are a popular fruit. Besides being eaten fresh, grapes have a wide range of uses and can be considered a "precious fruit." They can be processed into various products, such as raisins, wine, and grape juice.

[0003] In grape harvesting, stem cutting is still primarily done manually using hand-held shears. During this process, harvesters typically hold the bunch of grapes in one hand and operate the shears with the other, cutting close to the branching point of the bunch. This process heavily relies on the operator's visual judgment and tactile feedback to accurately locate the cutting point and control the cutting force. If the grapes are growing high up, harvesters may need to use ladders or other tools to climb to the appropriate height to cut the stems.

[0004] Regarding the aforementioned technologies, during the pruning process, if the grapes are growing at a high position, harvesters must repeatedly move and climb auxiliary tools to reach the corresponding work point before harvesting can be carried out. This process is cumbersome and labor-intensive, resulting in low grape harvesting efficiency. Summary of the Invention

[0005] To improve the efficiency of grape harvesting, this application provides a gripper-type grape stem cutting device.

[0006] The gripper-type grape stem cutting device provided in this application adopts the following technical solution: A gripper-type grape stem shearing device includes a support rod, one end of which is fixedly fitted with a bearing rod, the bearing rod being perpendicular to the support rod. Two first sliding rods are slidably connected to the bearing rod, each first sliding rod having two fixed rods fixedly connected to its ends, the fixed rods being parallel to the support rod. Above each first sliding rod is a second sliding rod, the upper ends of the two fixed rods on the same first sliding rod being fixedly connected to the corresponding second sliding rod. A net is provided between the four fixed rods, the upper end of the net having an open structure, and the sidewalls of the net being fixed to the fixed rods. The bottom of the net is fixedly connected to two first sliding rods on opposite sides, and the top of the net is fixedly connected to two second sliding rods on opposite sides. A first moving component is provided on the supporting rod to drive the two first sliding rods to move in opposite directions. A second moving component is provided on the support rod to drive the two first sliding rods to move towards each other. A moving rod is provided at one end of each of the two second sliding rods, and the moving rod overlaps and slides on the second sliding rod. A cutter is mounted on the moving rod, and a driving component is also provided on the support rod to drive the moving rod to reciprocate along the second sliding rod.

[0007] By adopting the above technical solution, when harvesting grapes, the operator holds a support rod, aligns the opening of the net with the bottom of the grape bunch, and moves the support rod upward to move the grape bunch into the net. Then, the second moving component moves the two first sliding rods towards each other, closing the net and securely holding the grape bunch. At this point, the drive component moves the moving rod along the second sliding rod, causing the cutter to swing rapidly, cutting the grape stems, and the grapes fall into the net. The entire process eliminates the need for manual climbing or repeated tool adjustments, achieving convenient and efficient harvesting of grapes from high places, significantly improving work efficiency.

[0008] Optionally, the two first sliding rods are parallel to each other, and the support rod has a first groove along its length on the side facing the first sliding rod; the first moving component includes two first sliders and two first springs, with the two first sliders corresponding one-to-one with the two first springs; the two first sliders are slidably connected in the first groove along the length of the support rod, and the upper surface of the first slider is fixedly connected to the corresponding first sliding rod; the first spring is fixedly disposed between the first slider and one side wall of the first groove, and the two first springs are respectively located on opposite sides of the two first sliders.

[0009] By adopting the above technical solution, the first spring provides tension to the first slider, so that the two first sliding rods are in an open state in their natural state, making it easy to quickly catch the bunch of grapes. When it is necessary to close the net, the second moving component overcomes the force of the first spring, causing the first sliding rods to move towards each other, thereby closing the net.

[0010] Optionally, the second moving component includes hinge rods and first pull ropes; there are four hinge rods, one end of each of the four hinge rods is hinged to both ends of two first slide rods, and the ends of two adjacent hinge rods away from the first slide rods are hinged to each other; there are two first pull ropes, one end of each of the two first pull ropes is fixedly connected to the ends of the hinge rods that are hinged to each other, and the other end of the first pull ropes extends toward the end of the support rod away from the bearing rod.

[0011] By employing the above technical solution, when the first pull rope is pulled, the hinged rod mechanism contracts under force, causing the two first sliding rods to move towards each other, thus closing the net. After the pull rope is released, the first sliding rods return to their original position under the action of the first spring, and the net opens.

[0012] Optionally, an annular pull plate is fitted onto the support rod, and the annular pull plate is slidably connected to the support rod; the ends of the two first pull ropes away from the hinge rod are respectively fixed on opposite sides of the annular pull plate.

[0013] By adopting the above technical solution, the operator can simultaneously control the two first pull ropes by pushing or pulling the ring pull plate, realizing one-handed operation of the net bag opening and closing, and improving the convenience of operation.

[0014] Optionally, the support rod has a guide groove along its length, and a guide block is slidably connected to the support rod in the guide groove. The side of the guide block facing out of the guide groove is fixedly connected to the inner wall of the annular pull plate.

[0015] By adopting the above technical solution, the guide block and the guide groove cooperate to ensure that the annular pull plate moves smoothly along the axis of the support rod, avoiding rotation or deviation and improving operational stability.

[0016] Optionally, a fixing plate is fixedly sleeved on the support rod, and the fixing plate is located between the annular pull plate and the bearing rod; a second spring is fixed between the fixing plate and the annular pull plate, and the second spring is in a stretched state and sleeved on the outside of the support rod.

[0017] By adopting the above technical solution, the second spring provides a restoring force to the annular pull plate in the direction of the bearing rod, so that the net bag can automatically open after the annular pull plate is released, which facilitates continuous operation.

[0018] Optionally, a second groove is formed on the side of the second slide rod away from the first slide rod along its length; a third groove is formed on the side of the moving rod facing the second slide rod; a second slider is slidably connected to the second slide rod in the second groove, one end of the second slider extends out of the second groove and into the third groove, and the second slider and the moving rod are slidably connected along the length of the third groove.

[0019] By adopting the above technical solution, the cooperation between the second slider and the third slide groove allows the moving rod to slide smoothly along the second slide bar, while allowing the cutter to have a certain degree of freedom of swing during the swinging process, thus improving the shearing adaptability.

[0020] Optionally, the drive assembly includes a third spring and a second pull rope; there are two third springs, which are respectively arranged in the second slide groove along the length direction of the second slide rod. One end of the third spring is fixedly connected to one side wall of the second slide groove, and the other end is fixedly connected to the second slider. The third spring is always in a compressed state; one end of the second pull rope is fixedly connected to the moving rod, and the other end extends towards the end of the support rod away from the bearing rod.

[0021] By employing the above technical solution, when the second rope is pulled, the moving rod drives the cutter towards the support rod, and the third spring is further compressed to store energy. After the second rope is released, the third spring is quickly released, pushing the cutter to swing rapidly towards the grape stem, thus achieving the cutting action.

[0022] Optionally, a baffle is fixedly provided at the end of the support rod away from the bearing rod; the end of the second pull rope away from the moving rod passes through the baffle and is fixedly connected to a pull rod; a connecting rod is fixedly provided on the side of the support rod away from the baffle, a locking plate is fixedly provided at the end of the connecting rod away from the support rod, a locking groove is provided on the side of the locking plate away from the baffle, and the pull rod engages with the locking groove.

[0023] By adopting the above technical solution, the pull rod can be inserted into the slot to temporarily fix the second pull rope, avoiding accidental contact that could cause the cutter to move unexpectedly and improving operational safety.

[0024] Optionally, the support rod has a support rod fixed to the side wall at one end near the bearing rod, and a guide tube is fixed to the end of the support rod away from the support rod, through which the second pull rope passes.

[0025] By adopting the above technical solution, the guide tube guides and protects the second pull rope, reduces friction and entanglement, and ensures smooth pull rope operation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By combining an openable and closable net with a swivel-type cutter, grapes can be quickly caught and the stems cut off, eliminating the need for manual climbing and repeated adjustments, thus significantly improving harvesting efficiency; 2. It adopts a combination of spring and pull rope drive, which is simple and labor-saving to operate and suitable for long-term operation; 3. The net and cutter can be controlled with one hand, improving operational flexibility and safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a gripper-type grape stem shearing device according to an embodiment of this application; Figure 2 This is a cross-sectional view of the structure of the first moving component in the embodiments of this application; Figure 3 This is a cross-sectional view of the structure of the second moving component in the embodiments of this application; Figure 4 This is a cross-sectional view of the structure at the annular pull plate in the embodiment of this application.

[0028] In the diagram, 1. Support rod; 11. Annular pull plate; 12. Guide groove; 13. Guide block; 14. Fixing plate; 15. Second spring; 16. Baffle; 17. Connecting rod; 18. Support rod; 19. Guide tube; 2. Bearing rod; 21. First sliding rod; 22. Fixing rod; 23. Net bag; 24. First sliding groove; 3. Second sliding rod; 31. Second sliding groove; 32. Second slider; 4. First moving assembly; 41. First slider; 42. First spring; 5. Second moving assembly; 51. Hinge rod; 52. First pull rope; 6. Moving rod; 61. Cutter; 62. Third sliding groove; 7. Drive assembly; 71. Third spring; 72. Second pull rope; 8. Pull rod; 9. Card plate; 91. Card slot. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses a gripper-type grape stem cutting device.

[0031] refer to Figure 1 A gripper-type grape stem shearing device includes a support rod 1, which is a cylindrical rod for easy handling by harvesters. A load-bearing rod 2 is vertically fixed to one end of the support rod 1. Both the load-bearing rod 2 and the support rod 1 are made of high-strength aluminum alloy, ensuring structural strength while reducing the overall weight of the device.

[0032] refer to Figure 1 and Figure 2 The support rod 2 has two parallel first slide rods 21 slidably connected to it. The support rod 2 has a first slide groove 24 along its length on the side facing the first slide rods 21. The first slide groove 24 is a T-shaped groove. A first moving component 4 for driving the two first slide rods 21 to move in opposite directions is provided in the first slide groove 24.

[0033] The first moving component 4 includes two first sliders 41 and two first springs 42. The two first sliders 41 are T-shaped blocks adapted to the first slide groove 24 and are slidably connected to the first slide groove 24 along the length direction of the bearing rod 2. The upper surface of the first slider 41 is fixedly connected to the corresponding first slide rod 21. The two first springs 42 are respectively located on opposite sides of the two first sliders 41. One end of the first spring 42 is fixedly connected to the first slider 41, and the other end is fixedly connected to one side wall of the first slide groove 24.

[0034] The first slide groove 24 is a T-shaped groove, which cooperates with the first slider 41, which is also a T-shaped block, to effectively prevent the first slider 41 from falling out of the first slide groove 24, while ensuring the smooth sliding of the first slider 41. The first slider 41 is fixedly connected to the first slide rod 21, so that the movement of the first slider 41 can directly drive the movement of the first slide rod 21. The first spring 42 is connected between the first slider 41 and the side wall of the first slide groove 24, providing power for the reset of the first slide rod 21.

[0035] When the two first sliding rods 21 move towards each other, the first slider 41 slides synchronously towards the center along with the first sliding rods 21. At this time, the first slider 41 pulls the first spring 42, causing the first spring 42 to stretch. Until the corresponding position is reached, after the shearing is completed, the stretched first spring 42 will contract, driving the two first sliders 41 to slide to both sides, which in turn causes the two first sliding rods 21 to move away from each other, realizing the automatic opening of the net bag 23, preparing for the next clamping of the ear of fruit.

[0036] refer to Figure 1 , Figure 2 and Figure 3 Each first slide rod 21 has a fixed rod 22 vertically fixed to both ends, and the fixed rod 22 is perpendicular to the first slide rod 21. Above each first slide rod 21 is a second slide rod 3, which is parallel to the first slide rod 21. The upper ends of the two fixed rods 22 on the same first slide rod 21 are fixedly connected to the corresponding second slide rod 3. The four fixed rods 22, the two first slide rods 21, and the two second slide rods 3 together form a rectangular frame structure. A net bag 23 is provided between the four fixed rods 22. The net bag 23 is made of flexible and wear-resistant nylon mesh. The upper end of the net bag 23 is open. The side walls of the net bag 23 are fixed to the fixed rods 22. The bottom of the net bag 23 is sewn to the two first slide rods 21 on opposite sides, and the upper end of the net bag 23 is sewn to the two second slide rods 3 on opposite sides.

[0037] Four fixing rods 22 are fixed to the two ends of the two first sliding rods 21, and then fixed to the two second sliding rods 3 above, forming a stable rectangular frame that provides a reliable support structure for the net bag 23. The net bag 23 is made of flexible nylon netting, which has a certain degree of toughness, can firmly wrap the ear of fruit, and will not damage the ear of fruit. The upper and lower ends of the net bag 23 are fixed to the first sliding rods 21 and the second sliding rods 3, respectively, to ensure that the net bag 23 can contract or open synchronously with the movement of the first sliding rods 21.

[0038] When the two first sliding rods 21 move towards each other, they cause the fixing rod 22 and the second sliding rod 3 to move synchronously. The width of the rectangular frame decreases, and the net 23 contracts accordingly, wrapping the grape bunches from both sides towards the middle and firmly holding them within the net 23 to prevent them from falling during harvesting. After the two second sliding rods 3 have finished holding and securing the grape bunches to the vine stems, the first sliding rods 21 stop moving. After the stems are cut, when the first sliding rods 21 move away from each other, the width of the rectangular frame increases, and the net 23 opens, making it easier to remove the harvested grape bunches.

[0039] refer to Figure 1 , Figure 2 and Figure 3 The support rod 1 is equipped with a second moving assembly 5 for driving the two first sliding rods 21 to move towards each other. The second moving assembly 5 includes four hinge rods 51 and two first pull ropes 52. One end of each of the four hinge rods 51 is hinged to both ends of the two first sliding rods 21 via hinge shafts. The ends of two adjacent hinge rods 51 away from the first sliding rods 21 are hinged to each other via the same hinge shaft, forming a diamond-shaped hinge structure. One end of each of the two first pull ropes 52 is fixedly connected to the hinge shafts of the hinge rods 51. The first pull ropes 52 are made of high-strength nylon rope. An annular pull plate 11 is sleeved on the support rod 1. The annular pull plate 11 is a circular ring plate that is slidably connected to the support rod 1. The ends of the two first pull ropes 52 away from the hinge rods 51 are fixedly set on opposite sides of the annular pull plate 11.

[0040] Four hinged rods 51 are connected by hinge shafts to form a rhomboid structure. The characteristic of this structure is that it can convert the tension in one direction into the driving force in two perpendicular directions, ensuring that the two first sliding rods 21 can move synchronously towards each other. The annular pull plate 11 is sleeved on the support rod 1 and can slide along the support rod 1, providing a unified driving carrier for the two first pull ropes 52, so that the two first pull ropes 52 can be subjected to force synchronously.

[0041] The harvester grasps the annular pull plate 11 and pulls it away from the bearing rod 2. The annular pull plate 11 drives the two first pull ropes 52 to move synchronously, and the first pull ropes 52 pull the central hinge point of the diamond-shaped hinge structure to move. Under the linkage of the hinge structure, the two first sliding rods 21 are driven to move closer to each other, which in turn causes the net bag 23 to contract, thus clamping the ears of fruit.

[0042] refer to Figure 1 , Figure 3 and Figure 4 The support rod 1 has a strip-shaped guide groove 12 along its length. A guide block 13 is slidably connected inside the guide groove 12. The side of the guide block 13 facing out of the guide groove 12 is fixedly connected to the inner wall of the annular pull plate 11. A circular fixing plate 14 is fixedly sleeved on the support rod 1. The fixing plate 14 is located between the annular pull plate 11 and the bearing rod 2. A second spring 15 is fixed between the fixing plate 14 and the annular pull plate 11. The second spring 15 is in a stretched state and sleeved on the outside of the support rod 1. One end of the second spring 15 is fixedly connected to the fixing plate 14, and the other end is fixedly connected to the annular pull plate 11.

[0043] The cooperation between the guide groove 12 and the guide block 13 restricts the movement direction of the annular pull plate 11, allowing it to slide only along the length of the support rod 1, thus preventing the annular pull plate 11 from rotating or shifting. The fixing plate 14 is fixed to the support rod 1, providing a fixed support point for the second spring 15. The second spring 15 is in a stretched state, providing an elastic driving force for the reset of the annular pull plate 11.

[0044] When the harvester pulls the annular pull plate 11, the guide block 13 slides synchronously within the guide groove 12, ensuring the smooth movement of the annular pull plate 11. Simultaneously, the second spring 15 is further stretched, storing elastic potential energy. When the harvester releases the annular pull plate 11, the second spring 15 releases its elastic potential energy, pulling the annular pull plate 11 back towards the support rod 2. The annular pull plate 11 then causes the first pull rope 52 and the hinged structure to reset, the first sliding rod 21 moves in opposite directions, and the net bag 23 opens.

[0045] refer to Figure 1 , Figure 2 and Figure 3 Two second sliding rods 3 share a common movable rod 6 at one end. The movable rod 6 is a rectangular rod that overlaps the second sliding rod 3 and is slidably connected to it. A second sliding groove 31, which is T-shaped, is formed along the length of the second sliding rod 3 on the side away from the first sliding rod 21. A third sliding groove 62, also T-shaped, is formed on the side of the movable rod 6 facing the second sliding rod 3. A second slider 32, which is T-shaped, is slidably connected to the second sliding rod 3 within the second sliding groove 31. One end of the second slider 32 extends out of the second sliding groove 31 and into the third sliding groove 62, and is slidably connected to the movable rod 6 along the length of the third sliding groove 62.

[0046] A cutter 61, made of stainless steel, is bolted to the movable rod 6. The cutter 61 has a sharp blade for easily cutting fruit stems. A drive assembly 7 is provided at the movable rod 6 to drive it along the length of the second slide rod 3. The drive assembly 7 includes two third springs 71 and a second pull rope 72. The two third springs 71 are respectively positioned within the second slide groove 31 along the length of the second slide rod 3. One end of each third spring 71 is fixedly connected to one side wall of the second slide groove 31, and the other end is fixedly connected to the second slide block 32. The third springs 71 are always in a compressed state. One end of the second pull rope 72 is fixedly connected to the side of the movable rod 6 away from the cutter 61. The end of the second pull rope 72 away from the movable rod 6 extends to the end of the support rod 1 away from the bearing rod 2.

[0047] Both the second slide groove 31 and the third slide groove 62 are T-shaped grooves, which cooperate with the T-shaped second slider 32 to ensure a stable connection between the second slider 32 and the second slide rod 3 and the moving rod 6, while also allowing the second slider 32 to slide smoothly within the groove. The second slider 32 is connected to both the second slide rod 3 and the moving rod 6, forming a double guiding structure that restricts the direction of movement of the moving rod 6.

[0048] In the initial state, the third spring 71, which is in a compressed state, always exerts a pushing force on the second slider 32, while the second pull rope 72 is in a taut state. The tension and the elastic pushing force of the third spring 71 are balanced, thus stably limiting the moving rod 6 to the initial position. When the fruit stem needs to be cut, the second pull rope 72 is released. After the tension disappears, the third spring 71 quickly releases the stored elastic potential energy, pushing the second slider 32 to slide rapidly along the T-shaped second groove 31 on the second slide rod 3. Since the second slider 32 is simultaneously embedded in the T-shaped third groove 62 on the moving rod 6 and slides in cooperation with the moving rod 6, under the constraint of the double guide structure, the second slider 32 drives the moving rod 6 to move smoothly and quickly along the length direction of the second slide rod 3. The moving rod 6 simultaneously drives the stainless steel cutter 61 on it to slice across the fruit stem at high speed, realizing the rapid cutting of the fruit stem. After the cutting is completed, the second pull rope 72 is pulled towards the end of the support rod 1 away from the bearing rod 2. The second pull rope 72 drives the moving rod 6 to move in the opposite direction through the fixed connection with the moving rod 6. The moving rod 6 drives the second slider 32 through the third groove 62 to compress the third spring 71 and return to the initial position, completing the reset to prepare for the next cutting action.

[0049] refer to Figure 2 , Figure 3 and Figure 4A baffle 16 is fixedly connected to the end of the support rod 1 away from the bearing rod 2. The end of the second pull rope 72 away from the moving rod 6 passes through the baffle 16 and is fixedly connected to a cylindrical pull rod 8. A connecting rod 17 is fixedly connected to the side of the support rod 1 away from the bearing rod 2. A locking plate 9 is fixedly connected to the end of the connecting rod 17 away from the support rod 1. An arc-shaped locking groove 91 adapted to the pull rod 8 is opened on the side of the locking plate 9 away from the baffle 16. The pull rod 8 is engaged with the locking groove 91. A support rod 18 is fixedly connected to the side wall of the support rod 1 near the bearing rod 2. A circular guide tube 19 is fixedly connected to the end of the support rod 1 away from the support rod 1. The second pull rope 72 passes through the guide tube 19.

[0050] Before harvesting, insert the pull rod 8 into the slot 91, keeping the second pull rope 72 taut, and fix the moving rod 6 in its initial position. Once the ear of fruit is held by the net bag 23, remove the pull rod 8 from the slot 91 and release it. The third spring 71 then drives the moving rod 6 and the cutter 61 to move quickly, completing the cutting. After cutting, pull the pull rod 8 to reset the moving rod 6 and the cutter 61, then insert the pull rod 8 back into the slot 91 for the next harvest. The guide tube 19 ensures that the second pull rope 72 always moves along a preset path during pulling and resetting, guaranteeing smooth operation.

[0051] The implementation principle of the gripper-type grape stem cutting device in this application embodiment is as follows: During harvesting, the operator holds the support rod 1 and aligns the open net bag 23 with the bottom of the grape bunch. The annular pull plate 11 is pushed towards the lower end of the support rod 1, causing the hinge rod 51 to retract via the first pull rope 52, which in turn moves the two first sliding rods 21 towards each other, causing the net bag 23 to close and catch the grape bunch. Then, the pull rod 8 is pulled to disengage from the clamping plate 9, and then quickly released. The third spring 71 pushes the second slider 32 and the moving rod 6 to move rapidly, causing the cutter 61 to swing towards the grape stem and cut it, with the grapes falling into the net bag 23. After harvesting, the annular pull plate 11 is released, and under the action of the first spring 42 and the second spring 15, the net bag 23 automatically opens, ready for the next operation. The entire operation process is simple and fast, requiring no climbing or repeated tool adjustments, making it particularly suitable for harvesting grapes from high places, significantly improving grape harvesting efficiency.

[0052] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gripper-type grape stem cutting device, characterized in that: The system includes a support rod (1), one end of which is fixedly provided with a bearing rod (2), which is perpendicular to the support rod (1); two first sliding rods (21) are slidably connected to the bearing rod (2), and each first sliding rod (21) has a fixed rod (22) fixedly connected to both ends, which is parallel to the support rod (1); a second sliding rod (3) is provided above each first sliding rod (21), and the upper ends of the two fixed rods (22) on the same first sliding rod (21) are fixedly connected to the corresponding second sliding rod (3); a net bag (23) is provided between the four fixed rods (22), the upper end of the net bag (23) is open, and the side wall of the net bag (23) is fixed to the fixed rod (22). The bottom of the net (23) is fixedly connected to the two first sliding rods (21) on opposite sides, and the upper end of the net (23) is fixedly connected to the two second sliding rods (3) on opposite sides. The bearing rod (2) is provided with a first moving component (4) for driving the two first sliding rods (21) to move in opposite directions. The support rod (1) is provided with a second moving component (5) for driving the two first sliding rods (21) to move in opposite directions. One end of the two second sliding rods (3) is provided with a moving rod (6), which overlaps the second sliding rod (3) and is slidably connected to the second sliding rod (3). A cutter (61) is installed on the moving rod (6), and the support rod (1) is also provided with a driving component (7) for driving the moving rod (6) to move back and forth along the second sliding rod (3).

2. The gripper-type grape stem cutting device according to claim 1, characterized in that: The two first slide rods (21) are parallel to each other, and the support rod (2) has a first groove (24) along its length on the side facing the first slide rod (21); the first moving component (4) includes two first sliders (41) and two first springs (42), with the two first sliders (41) and the two first springs (42) corresponding one-to-one; the two first sliders (41) are slidably connected in the first groove (24) along the length of the support rod (2), and the upper surface of the first slider (41) is fixedly connected to the corresponding first slide rod (21); the first spring (42) is fixedly disposed between the first slider (41) and one side wall of the first groove (24), and the two first springs (42) are respectively located on the opposite side of the two first sliders (41).

3. The gripper-type grape stem cutting device according to claim 1, characterized in that: The second moving component (5) includes a hinge rod (51) and a first pull rope (52); there are four hinge rods (51), one end of each of the four hinge rods (51) is hinged to the two ends of the two first slide rods (21), and the ends of two adjacent hinge rods (51) away from the first slide rods (21) are hinged to each other; there are two first pull ropes (52), one end of each of the two first pull ropes (52) is fixedly connected to the ends of the hinge rods (51) that are hinged to each other, and the other end of the first pull ropes (52) extends toward the end of the support rod (1) away from the bearing rod (2).

4. The gripper-type grape stem cutting device according to claim 3, characterized in that: An annular pull plate (11) is sleeved on the support rod (1), and the annular pull plate (11) is slidably connected to the support rod (1); the ends of the two first pull ropes (52) away from the hinge rod (51) are respectively fixed on opposite sides of the annular pull plate (11).

5. The gripper-type grape stem cutting device according to claim 4, characterized in that: The support rod (1) has a guide groove (12) along its length direction. A guide block (13) is slidably connected to the support rod (1) in the guide groove (12). The side of the guide block (13) facing out of the guide groove (12) is fixedly connected to the inner wall of the annular pull plate (11).

6. The gripper-type grape stem cutting device according to claim 4, characterized in that: A fixing plate (14) is fixedly sleeved on the support rod (1), and the fixing plate (14) is located between the annular pull plate (11) and the bearing rod (2); a second spring (15) is fixed between the fixing plate (14) and the annular pull plate (11), and the second spring (15) is in a stretched state and sleeved on the outside of the support rod (1).

7. The gripper-type grape stem cutting device according to claim 1, characterized in that: The second slide rod (3) has a second groove (31) on the side away from the first slide rod (21) along its length direction; the moving rod (6) has a third groove (62) on the side facing the second slide rod (3); the second slide rod (3) has a second slider (32) slidably connected in the second groove (31), one end of the second slider (32) extends out of the second groove (31) and into the third groove (62), and the second slider (32) and the moving rod (6) are slidably connected along the length direction of the third groove (62).

8. The gripper-type grape stem cutting device according to claim 7, characterized in that: The drive assembly (7) includes a third spring (71) and a second pull rope (72); there are two third springs (71), and the two third springs (71) are respectively arranged in the second slide groove (31) along the length direction of the second slide rod (3). One end of the third spring (71) is fixedly connected to one side wall of the second slide groove (31), and the other end is fixedly connected to the second slider (32). The third spring (71) is always in a compressed state; one end of the second pull rope (72) is fixedly connected to the moving rod (6), and the other end extends towards the end of the support rod (1) away from the bearing rod (2).

9. A gripper-type grape stem cutting device according to claim 8, characterized in that: A baffle (16) is fixedly provided at one end of the support rod (1) away from the bearing rod (2); the second pull rope (72) passes through the baffle (16) and is fixedly connected to the pull rod (8) at one end away from the moving rod (6); a connecting rod (17) is fixedly provided on the side of the support rod (1) away from the bearing rod (2), and a locking plate (9) is fixedly provided at one end of the connecting rod (17) away from the support rod (1), and a locking groove (91) is opened on the side of the locking plate (9) away from the baffle (16), and the pull rod (8) is engaged with the locking groove (91).

10. A gripper-type grape stem cutting device according to claim 8, characterized in that: The support rod (1) has a support rod (18) fixed on the side wall near the bearing rod (2), and a guide tube (19) is fixed on the end of the support rod (18) away from the support rod (1), and the second pull rope (72) passes through the guide tube (19).

Images