Winding seedling taking device of transplanter

Abstract

A winding seedling taking device of a transplanter is used for transplanting pot seedlings in a hole tray and comprises a sleeve, the sleeve is vertically arranged and can be arranged on the outer side of the pot seedlings in a sleeving mode, and two elastic ropes and a height limiting ring capable of conducting lifting motion in the vertical direction are arranged in the sleeve. When the arc-shaped rack rotates, the bottom ends of the elastic ropes are driven to move around the axis of the sleeve, so that the two elastic ropes are matched to wind the stalk of the pot seedling, and the elastic rope above the height limiting ring does not participate in the winding motion, that is, the height of the elastic ropes during winding can be adjusted through the height limiting ring; during operation, the sleeve sleeves the outer side of a pot seedling from top to bottom without touching stems and leaves, and compared with a traditional mode that the middle section or tender leaves of a stem are easily touched by clamping or winding the middle-upper part, the elastic rope can avoid the leaves and terminal buds, so that the force on the seedling stem can be reduced, and the risk that the seedling stem is broken or bent is reduced; the situation that the clamping strength is low or tender leaves are broken is avoided, and smaller damage is caused to pot seedlings.

Description

Technical Field

[0001] This invention relates to the field of seedling taking devices, and more particularly to a winding seedling taking device for a transplanter. Background Technology

[0002] Seedling transplanting effectively mitigates risks such as seedling diseases and pests, improves land utilization, and thus increases yield and income, which is of great significance to the sustainable development of the vegetable industry. Currently, conventional vegetable transplanting machinery suffers from a high loss rate in actual operation, a problem that urgently needs to be addressed. In the seedling extraction stage, traditional clamp-type seedling extractors directly pull the seedlings out by gripping the stems, applying localized pressure to the fragile pots. This easily leads to substrate breakage and root fracture, affecting the seedlings' root system and causing some seedlings to fail to survive after transplanting. This increases planting costs, reduces the economic benefits of vegetable cultivation, and hinders the promotion and application of mechanized vegetable planting technology. Summary of the Invention

[0003] To address the problem that existing transplanters easily cause substrate breakage and root fracture, affecting the root system of potted seedlings, this invention provides a seedling winding and picking device for a transplanter.

[0004] The technical solution adopted by this invention to solve the above-mentioned technical problems is: a seedling winding and picking device for a transplanter, used for transplanting seedlings in seed trays, comprising a sleeve with open ends, the sleeve being vertically arranged and capable of being fitted onto the outside of the seedling, two elastic ropes being provided inside the sleeve, the top ends of the elastic ropes being connected to the inner wall of the sleeve near the top end, and the top ends of the two elastic ropes being symmetrically arranged about the axis of the sleeve, a height limiting ring being provided inside the sleeve, the height limiting ring being capable of vertically moving up and down, and the two elastic ropes respectively passing through the rope holes of the height limiting ring from the top end vertically downwards, the bottom of the sleeve... The sleeve has an annular groove along its circumference, and two arc-shaped racks are installed in the annular groove. The bottom ends of the two elastic ropes are connected to the two arc-shaped racks respectively. The bottom end of the sleeve has two motor mounting platforms, and each motor mounting platform is equipped with a rack motor. The output shaft of the rack motor is equipped with gears, and the two gears mesh with the outer arc tooth surfaces of the two arc-shaped racks respectively. The two rack motors can drive the two gears to rotate synchronously, so that the two arc-shaped racks can rotate synchronously in the same direction within the annular groove. This allows the two elastic ropes to work together to wrap the stems of the seedlings from the height-limiting ring to the arc-shaped racks.

[0005] Preferably, the outer wall of the sleeve is provided with a lifting guide rail, and the side wall of the sleeve is provided with a vertical through groove. A slider is provided in the vertical through groove. One end of the slider is connected to the height limiting ring, and the other end is slidably mounted on the lifting guide rail. A vertically arranged lead screw is installed on the lifting guide rail, and the slider is screwed on the lead screw. One end of the lifting guide rail is provided with a lifting motor for driving the lead screw to rotate, so that the lead screw can drive the slider to move along the lifting guide rail, so that the height limiting ring can move up and down in the vertical direction.

[0006] Preferably, a support is provided on the outer side of the sleeve.

[0007] According to the above technical solution, the beneficial effects of the present invention are: This invention utilizes an arc-shaped rack and pinion mechanism where the bottom end of an elastic rope moves around the axis of a sleeve. This allows the two elastic ropes to work together to wrap around the stem of the seedling, providing tension and grip. Since the elastic rope above the height-limiting ring does not participate in the wrapping motion, the height of the rope during wrapping can be adjusted using the height-limiting ring. During operation, the sleeve is placed over the outside of the seedling from top to bottom without touching the stem or leaves, preventing seedling damage and promoting root growth. The cylinder protects the seedling during seedling removal and transplanting, helping to maintain the integrity and activity of the root system, ensuring post-transplant growth and development, and improving crop yield and quality.

[0008] The method of wrapping and retrieving seedlings abandons the traditional clamping method. The end effector directly clamps the seedling stem, and the position of the wrapped seedling stem can be easily controlled to be close to the base of the stem surface. Compared with the traditional clamping or upper-middle wrapping method, which is prone to touching the middle section of the stem or tender leaves, the elastic rope in this invention can avoid leaves and terminal buds, which can reduce the force on the seedling stem and reduce the risk of seedling stem breakage or bending. It will not result in low clamping strength or damage to tender leaves, ensuring the integrity of the seedling and causing less damage to the seedling. At the same time, the wrapping property of the cylindrical structure can also reduce seedling drop and leakage. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the present invention; Figure 2 for Figure 1 A schematic diagram after removing the sleeve and turning; Figure 3 This is a schematic diagram of the sleeve and accessories; Figure 4 for Figure 3 A schematic diagram after removing the sleeve and turning.

[0010] The markings in the diagram are: 1. Seedling tray, 2. Seedling pot, 3. Support, 4. Sleeve, 5. Lifting guide rail, 6. Elastic rope, 7. Height limiting ring, 8. Arc rack, 9. Ring groove, 10. Motor mounting platform, 11. Rack motor, 12. Gear, 13. Lifting motor, 14. Slider, 15. Lead screw. Detailed Implementation

[0011] Referring to the attached diagram, the specific implementation method is as follows: like Figure 1 , 2 As shown, a seedling winding device for a transplanter is used to transplant seedlings 2 in a seedling tray 1. It includes a sleeve 4 with open ends, a support 3 on the outside of the sleeve 4, and the sleeve 4 is vertically arranged. An external device can use the support 3 to wrap the sleeve 4 around the outside of the seedling 2 from top to bottom. Two elastic ropes 6 are provided inside the sleeve 4. The top end of the elastic rope 6 is connected to the inner wall of the sleeve 4 near the top end, and the top ends of the two elastic ropes 6 are symmetrical about the axis of the sleeve 4.

[0012] like Figure 2-4 As shown, a height limiting ring 7 is also provided inside the sleeve 4, and a lifting guide rail 5 is provided on the outer wall of the sleeve 4. A vertical through groove is opened on the side wall of the sleeve 4, and a slider 14 is provided in the vertical through groove. One end of the slider 14 is connected to the height limiting ring 7, and the other end is slidably mounted on the lifting guide rail 5. A vertically arranged lead screw 15 is installed on the lifting guide rail 5, and the slider 14 is screwed on the lead screw 15. A lifting motor 13 is provided at one end of the lifting guide rail 5 for driving the lead screw 15 to rotate. The lead screw 15 can drive the slider 14 to move along the lifting guide rail 5, so that the height limiting ring 7 can move up and down in the vertical direction.

[0013] like Figure 2 , 4 As shown, two elastic ropes 6 pass through the rope holes of the height-limiting ring 7 vertically downwards from the top, as... Figure 3 As shown, the bottom end of the sleeve 4 has an annular groove 9 along the circumferential direction. Two arc-shaped racks 8 are provided in the annular groove 9. The bottom ends of the two elastic ropes 6 are respectively connected to the two arc-shaped racks 8. The bottom end of the sleeve 4 is provided with two motor mounting platforms 10. The two motor mounting platforms 10 are respectively provided with rack motors 11. The output shaft of the rack motor 11 is equipped with gears 12. The two gears 12 mesh with the outer arc tooth surfaces of the two arc-shaped racks 8 respectively. The two rack motors 11 can drive the two gears 12 to rotate synchronously, so that the two arc-shaped racks 8 can rotate synchronously in the same direction in the annular groove 9. The part of the two elastic ropes 6 from the height limiting ring 7 to the arc-shaped racks 8 can cooperate to wrap the stem of the seedling 2.

[0014] Example: A seedling-wrapping device for tomato seedlings, suitable for seedlings with a height between 130-150mm, using a 128-hole tray. The tray holes are 38mm high, the top stem hole is 30mm wide, and the hole spacing is 2mm. Each tray unit is square, with the inscribed circle forming the tray holes. The cylinder diameter is set to 65mm to ensure that the hole spacing does not exceed the length of each individual tray unit while allowing for wrapping the seedling during top-to-bottom seedling removal.

[0015] When taking seedlings, the sleeve is first placed on the outside of the potted seedling from top to bottom using a support. The lifting motor drives the limiting ring to move and stop at a distance of 3.5-8cm from the base of the stem, which serves as the fixing point for the upper end when wrapping the bottom. According to the "Seedling Quality Requirements" in "T / YNRZ012-2024 Technical Specifications for Tomato Plug Seedling Raising", the stem height should be more than 3.5cm from the substrate. Therefore, the position of the limiting ring can ensure a distance of 1-3.5cm from the substrate.

[0016] Once the height-limiting ring is in place, the rack and pinion motor begins to drive the arc-shaped rack, causing the bottom end of the elastic rope to move around the axis of the sleeve. Through the cooperation of the two elastic ropes, the stem of the seedling is wrapped around the pot, and the elastic limit of the elastic rope increases accordingly, making the elastic rope taut to provide gripping force. At this time, the bottom stem of the seedling is wrapped around the elastic rope in both directions, and the stem and leaf segments of the seedling are wrapped inside the sleeve. Finally, the sleeve is lifted by the support, and the seedling is taken out of the seedling tray.

[0017] When placing the seedlings, align the sleeve with the seedling cup, the rack and pinion motor rotates in the opposite direction, the arc-shaped rack retracts the elastic rope and releases the seedling, and the seedling falls vertically from the bottom of the sleeve into the seedling cup, completing the seedling placement operation.

Claims

1. A winding seedling taking device of a transplanter for transplanting a pot seedling (2) in a plug (1), characterized in that: The utility model relates to a seedling raising device, including a sleeve (4) of two ends open, sleeve (4) vertical setting and can be set to the outside of seedling (2), be equipped with two elastic ropes (6) in sleeve (4), the top end of elastic rope (6) is connected with the inner wall of the side of sleeve (4) near the top end, and the top end of two elastic ropes (6) is about the axis of sleeve (4) symmetry setting, still be equipped with height limiting ring (7) in sleeve (4), height limiting ring (7) can move along vertical direction, two elastic ropes (6) are respectively from the top along vertical direction and pass through the rope through hole of height limiting ring (7), the bottom end of sleeve (4) is opened along the circumferential direction and is equipped with two arc gear racks (8) in ring groove (9), the bottom end of two elastic ropes (6) is connected with two arc gear racks (8) respectively, the bottom end of sleeve (4) is equipped with two motor mounting table (10), two motor mounting table (10) are equipped with rack motor (11) respectively, the output shaft of rack motor (11) is installed gear (12), two gear (12) are respectively with the outer arc tooth surface of two arc gear racks (8) meshing, two rack motors (11) can drive two gear (12) synchronous rotation, so that two arc gear racks (8) can in ring groove (9) with same direction synchronous rotation, so as to the part of two elastic ropes (6) from height limiting ring (7) to arc gear rack (8) cooperation to the stem of seedling (2) is wound.

2. A wrapping take-off device for a transplanter according to claim 1, characterized in that: The outer wall of sleeve (4) is equipped with lifting guide rail (5), the sidewall of sleeve (4) is opened and is equipped with vertical through slot, vertical through slot is equipped with sliding block (14), one end of sliding block (14) is connected with height limiting ring (7), the other end is slidably arranged on lifting guide rail (5), lifting guide rail (5) is installed the vertical setting of screw rod (15), sliding block (14) is screwed on screw rod (15), one end of lifting guide rail (5) is equipped with lifting motor (13) for driving screw rod (15) rotation, so that screw rod (15) can drive sliding block (14) along lifting guide rail (5) motion, so as to height limiting ring (7) along vertical direction moves up and down.

3. A wrapping take-off device for a transplanter according to claim 1, characterized in that: The outside of sleeve (4) is equipped with support (3).

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