Automatic unbundling and segmenting method and device for fiber type industrial hemp

Abstract

The invention discloses an automatic unbundling and segmenting method and device for fiber type industrial hemp, and solves the problems that the manual unbundling efficiency of fiber type industrial hemp stalk bundle bundled objects is low, the working environment is poor, dust is large, harm to health is large, fibers are prone to winding and breaking, follow-up processing (such as degumming and spinning) is affected, traditional cutting equipment is prone to generating extrusion deformation when cutting stalks, and the cutting efficiency is poor. Fibers are damaged and the like. An industrial hemp bundle is grabbed by a manipulator and placed on a lower conveying belt, the industrial hemp bundle is clamped by the lower conveying belt and an upper conveying belt and unbundled by an unbundling round knife, hemp stalks are cut off by a disc type cutter, and finally the hemp stalks slide to a rear conveying device through a U-shaped gathering sliding plate. According to the device, the production requirements of fiber type industrial hemp are met, the productivity is improved, the labor intensity is relieved, and the next degumming and spinning are facilitated.

Description

Technical Field

[0001] This patent relates to the technical field of agricultural material processing equipment, specifically an automated unbundling and segmenting device for bundles of fiber-type industrial hemp stalks. Background Art

[0002] Industry pain points: Manual unbundling of industrial hemp stalks is inefficient, results in a poor working environment, high levels of dust, significant health hazards, and fiber entanglement and breakage, impacting subsequent processing (such as degumming and spinning). Existing technical deficiencies include a lack of specialized equipment tailored to the characteristics of hemp materials, and general unbundling machines that can easily damage fibers. Because fiber-producing industrial hemp plants have the highest hemp yield at 1800mm to 2200mm, the maximum length of hemp stalks suitable for this invention is 2260mm, and the length of the stalks after segmentation is 900mm to 1260mm. Summary of the Invention

[0003] The purpose of the present invention is to address the problems existing in the prior art, and in combination with the actual needs of the current automatic segmentation of industrial hemp, to provide a fully automatic unbundling and segmenting device suitable for fiber-type industrial hemp, to solve the problems of low manual unbundling efficiency, poor working environment, high dust, great health hazards, fiber damage, and low efficiency in traditional processes, and to improve the processing quality of fiber-type industrial hemp biomass raw materials. In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: use the lower conveyor belt and the upper conveyor belt to clamp the industrial hemp bundles, unbundle with the unbundling circular knife, and then cut the hemp stalks with the disc cutter. Finally, it slides to the rear conveying device through the U-shaped gathering slide, and then the segmented hemp stalks are transported to the next process by the conveying device, which specifically includes the following steps: In the first step, the industrial hemp bundles are transported to position a on the lower conveyor belt, and then the industrial hemp bundles are driven by the lower conveyor belt to be transported backward to position b, and then the industrial hemp bundles are clamped by the lower conveyor belt and the upper conveyor belt and transported backward.

[0004] In the second step, when the industrial hemp bundle is transported to position C, the unbundling circular knife swings horizontally to break the industrial hemp bundle in transport, and the industrial hemp stalks after breaking the bundle continue to be transported backward under the clamping action.

[0005] In the third step, when the industrial hemp is transported to position d, the disc cutter rotates in the same direction to segment the industrial hemp stems, and the segmented industrial hemp stems continue to be transported backward to position e.

[0006] In the fourth step, when the industrial hemp stalks reach position e, the industrial hemp slides down through the U-shaped gathering slide, gradually gathers and aligns during the sliding process, falls onto position f on the conveyor belt of the rear conveying device, and then continues to be transported backward to the next process.

[0007] A method and device for automatically unpacking and segmenting fiber-type industrial hemp, characterized by: adopting flexible clamping technology: the lower conveyor belt and the upper conveyor belt use rubber belts, the surface of which is provided with anti-slip patterns, and the clamping force can be adjusted (0.1-0.5 MPa), reducing the damage to the stems and the crushing of fiber bundles. The crank pendulum type disc unpacking and the disc cutter work together to reduce the mechanical extrusion damage to the fibers.

[0008] The full-automatic unpacking and segmenting device for the fiber-type industrial hemp includes: a lower conveyor frame, a lower conveyor device, a clamping stepping motor, an upper conveyor frame, an upper conveyor device, an unpacking device, a driving stepping motor, a driving device frame, a gearbox pulley, a gearbox, a disc cutter, a U-shaped gathering slide plate, a rear conveyor motor, a rear conveyor device, a rear conveyor frame, a cutter fixing shaft, and a cutter driving pulley.

[0009] The lower conveyor frame is fixed below the lower conveyor device, the clamping stepping motor is fixed on the motor fixing frame, the upper conveyor frame is fixed on the lower conveyor cross beam, and the end upper conveyor vertical beam is aligned and fixedly connected with the lower conveyor cross beam. The upper conveyor device is fixed on the upper conveyor lower cross beam. The lower end of the unpacking device is fixed on the upper conveyor lower cross beam through a fixing shaft and a bearing seat, the front side of the upper end is fixedly connected with the gearbox by a crankshaft, and the rear side is fixedly connected with the unpacking device fixing beam through a bearing seat. The driving stepping motor is fixedly connected to the driving frame cross beam. The left end driving frame vertical beam of the driving device frame is aligned with the upper conveyor vertical beam, and the lower end driving frame cross beam is fixedly connected to the upper conveyor cross beam. The gearbox pulley is fixedly connected to the outside of the gearbox main shaft. The gearbox is fixedly connected to the gearbox fixing beam, clamped in the middle of the gearbox fixing vertical beam, and the upper end of the gearbox is fixedly connected to the driving frame cross beam. The disc cutter is fixedly connected to the cutter fixing shaft. The upper side of the side of the U-shaped gathering slide plate is fixedly connected to the end upper conveyor vertical beam. The bottom edge of the upper end of the U-shaped gathering slide plate is aligned with the end of the lower rubber conveyor belt. The lower side of the side of the U-shaped gathering slide plate is fixedly connected to the two side cross beams of the rear conveyor frame. The bottom edge of the lower end of the U-shaped gathering slide plate floats on the upper side of the conveyor belt of the rear conveyor device. The rear conveyor motor is fixedly connected to the rear conveyor frame. The rear conveyor device is fixedly connected to the rear conveyor frame cross beam. The cutter fixing shaft is fixedly connected to the disc cutter fixing beam through a bearing seat. The cutter driving pulley is fixedly connected to the outer end of the cutter fixing shaft and is connected to the gearbox pulley by a belt.

[0010] The lower conveyor frame includes: a motor frame, a lower conveyor cross beam, a lower conveyor horizontal beam, a lower conveyor lateral support beam, a lower conveyor vertical beam, a lower conveyor strengthening beam, and a lower conveyor strengthening beam.

[0011] The lower conveying device includes a lower driving pulley, a lower driving roller, and a lower conveyor belt. The lower driving pulley is fixed to the outer end of the lower long transmission shaft and is connected to the clamping stepping motor through a conveyor belt. The lower driving roller is fixedly connected to the lower conveying longitudinal beam through a bearing seat. The lower conveyor belt is sleeved on the lower driving roller, in pairs at both ends of the lower driving roller. The inner side is clamped on the shoulder of the lower driving roller cylinder, and the outer end is fixed to the outer side of the lower rubberized layer by a baffle. The surface of the lower conveyor belt is provided with anti-slip patterns, and the clamping force is adjustable (0.1 - 0.5 MPa) to reduce the clamping of the stem or the crushing of the fiber bundle. The lower driving roller includes a lower short transmission shaft, a baffle, a lower driving roller support web, a lower driving roller cylinder, a lower rubberized layer, and a lower long transmission shaft. The lower short transmission shaft is sleeved inside the lower driving roller support web and welded and fixed. The baffle is sleeved on the outer end of the lower short transmission shaft and is fixedly connected to the lower driving roller support web at the outer end of the lower driving roller by 6 M8 full-thread bolts evenly distributed at a distance of 80 mm from the axis. The support opening of the lower driving roller support web is welded to the outer periphery of the inner side of the lower driving roller cylinder. The lower driving roller cylinder is a steel pipe with an outer diameter of 63 mm, a wall thickness of 12 mm, and a length of 2200 mm. There is a raised shoulder with a length of 100 mm and a height of 4 mm in the middle, and positioning stop ports with a length of 10 mm and a diameter of 49 mm are provided at both ends. The lower rubberized layer is provided at both ends of the lower driving roller cylinder, with a thickness of 4 mm and a length of 2060 mm. Its surface is made of polyurethane soft material to reduce the pulling of the fiber by friction. The structure of the right end of the lower driving roller (except for the long transmission shaft) is the same as that of the left end. The lower long transmission shaft is sleeved inside the lower driving roller support web and welded and fixed. The lower driving rollers are used in pairs, and all the transmission shafts on the end driving rollers are short shafts.

[0012] The upper conveying frame includes an upper conveying longitudinal beam, an upper conveying upper cross beam, a disc cutter support beam, a disc cutter fixing beam, an upper conveying vertical beam, an upper conveying lower longitudinal beam, and an upper conveying lower cross beam.

[0013] The upper driving roller includes a short transmission shaft, a baffle, a driving roller support web, a driving roller cylinder, a rubberized layer, and a long transmission shaft. The upper driving roller is similar in structure to the lower driving roller. The driving roller cylinder is a steel pipe with an outer diameter of 63 mm, a wall thickness of 12 mm, and a length of 2200 mm. There is a raised shoulder with a length of 800 mm and a height of 4 mm in the middle, and positioning stop ports with a length of 10 mm and a diameter of 49 mm are provided at both ends. The polyurethane layer is provided at both ends of the driving roller cylinder, with a thickness of 4 mm and a length of 700 mm.

[0014] The strapping removal device includes a fixed shaft, a strapping removal circular knife, an eccentric shaft, a crank, and a crankshaft. The tail end of the fixed shaft is fixed inside the strapping removal circular knife, and the front end is fixedly connected to the upper conveying lower cross beam through a bearing seat. The center of the strapping removal circular knife is fixedly connected to the fixed shaft, and an eccentric hole is provided 100 mm away from the center. The front end of the eccentric shaft is fixedly connected inside the eccentric hole of the strapping removal circular knife, and the end is installed and fixedly connected to the crank. The upper end of the crank is fixedly connected to the crankshaft. The front end of the crankshaft is fixedly connected to the gearbox, and the tail end is fixedly connected to the fixed beam of the strapping removal device through a bearing seat.

[0015] The frame of the transmission device includes: a transmission frame longitudinal beam, a transmission frame cross beam, a transmission stepping motor fixed beam, a gearbox fixed beam, a transmission intermediate cross beam, a transmission frame vertical beam, a transmission frame intermediate vertical beam, a strapping removal device fixed beam, and a gearbox fixed vertical beam.

[0016] The rotary disk cutter is a serrated alloy blade with a diameter of 300 mm.

[0017] During operation, the clamping stepping motor transmits power to the lower transmission pulley and the upper transmission pulley through a conveyor belt. The lower transmission pulley transmits power to the lower conveyor belt through a lower transmission roller, and the upper transmission pulley transmits power to the upper conveyor belt through an upper transmission roller. The lower conveyor belt and the upper conveyor belt are synchronously conveyed. The transmission stepping motor transmits power to the gearbox pulley through a belt. The gearbox pulley transmits power to the gearbox, and the gearbox transmits power to the crankshaft. The crankshaft drives the crank to rotate, the crank drives the eccentric shaft to rotate, and the eccentric shaft drives the strapping removal circular knife to swing around the fixed shaft. At the same time, the gearbox pulley transmits power to the cutter transmission pulley through a belt, and the cutter transmission pulley drives the disk cutter to rotate through the cutter fixed shaft. The cutter transmission pulley rotates in the same direction as the lower transmission pulley, and its linear speed is higher than the latter. The upper transmission pulley and the lower transmission pulley rotate in opposite directions with the same linear speed.

[0018] Safety protection: A safety fence and an emergency stop device should be set around the automatic strapping removal and segmentation device for fiber-use industrial hemp. The device is provided with a transparent protective cover and safety warning signs.

[0019] The present invention reduces labor costs, improves operation efficiency, reduces the fiber damage rate, reduces fiber breakage, improves safety, meets the production requirements of industrial hemp, improves productivity, reduces labor intensity, and is more conducive to the next step of degumming and spinning work. Description of the Drawings

[0020] Figure 1 It is the front view of an automatic strapping removal and segmentation device for fiber-use industrial hemp according to the present invention; Figure 2 It is the top view of an automatic strapping removal and segmentation device for fiber-use industrial hemp according to the present invention; Figure 3 It is the automatic feeding device of the present invention; Figure 4 This is the lower conveying frame of the present invention; Figure 5 This is the lower conveying device of the present invention; Figure 6 This is the structure diagram of the lower conveying roller of the present invention; Figure 7 This is the upper conveying frame of the present invention; Figure 8 This is the upper conveying device of the present invention; Figure 9 This is the structure diagram of the upper conveying roller of the present invention; Figure 10 This is the bundling-untying device of the present invention; Figure 11 This is the frame of the transmission device of the present invention.

[0021] Explanation of the numbers in the figure: 1. Automatic feeding device, 2. Lower conveying frame, 3. Lower conveying device, 4. Clamping stepping motor, 5. Upper conveying frame, 6. Upper conveying device, 7. Bundling-untying device, 8. Transmission stepping motor, 9. Frame of the transmission device, 10. Gearbox pulley, 11. Gearbox, 12. Disc cutter, 13. Dust removal motor, 14. Dust removal system, 15. U-shaped gathering slide plate, 16. Rear conveying motor, 17. Rear conveying device, 18. Rear conveying frame, 19. Filter screen, 20. Cutter fixing shaft, 21. Cutter transmission pulley. Detailed implementation manners

[0022] To make the purpose, technical solutions and advantages of the implementation of the present invention clearer, the technical solutions in the implementation of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the description of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0023] The technical solution adopted by the present invention is as follows: Use the manipulator 201 to grab the industrial hemp bale and place it on the lower conveyor belt 303, then clamp the industrial hemp bale by the lower conveyor belt 303 and the upper conveyor belt 603, untie the bale with the untying round knife 702, and then cut the hemp stalks with the disc cutter 12. Finally, it slides down to the rear conveying device 17 through the U-shaped gathering slide plate 15, and then the conveying device 17 conveys the segmented hemp stalks to the next process, which specifically includes the following steps: First step, use the robotic arm 201 to grab the industrial hemp bale and place it on the lower conveyor belt 303; Second step, the industrial hemp bale is conveyed to position a on the lower conveyor belt 303, and the industrial hemp bale is conveyed backward to position b driven by the lower conveyor belt 303, and then the industrial hemp bale is clamped and conveyed backward by the lower conveyor belt 303 and the upper conveyor belt 603; In the third step, when the industrial hemp bales are conveyed to position c, the untying circular knife 702 swings horizontally to untie the industrial hemp bales during conveyance. After the bales are untied, the industrial hemp stalks continue to be conveyed backward under the clamping action. In the fourth step, when the industrial hemp is conveyed to position d, the disk cutters 12 rotate in the same direction to segment the industrial hemp stalks. The segmented industrial hemp stalks continue to be conveyed backward to position e. In the fifth step, when the industrial hemp stalks reach position e, the dust and fiber dust in the hemp stalks fall into the dust removal system 14 through the filter screen 19. The industrial hemp continues to slide downward through the U-shaped gathering slide plate 15, gradually gathering and aligning during the sliding process, and falling onto the conveyor belt at position f of the rear conveying device 17, and then continuing to be conveyed backward to the next process.

[0024] An automatic bale-untying and segmentation method and device for fiber-use industrial hemp, characterized in that: a flexible clamping technology is adopted. The lower conveyor belt 303 and the upper conveyor belt 603 use rubber belts with anti-slip patterns on their surfaces, and the clamping force can be adjusted (0.1 - 0.5 MPa) to reduce stem clamping and fiber bundle crushing. The crank pendulum disk bale-untying and the disk cutter work together to reduce mechanical extrusion damage to fibers.

[0025] The full-automatic bale-untying and segmentation device for industrial hemp includes an automatic feeding device 1, a lower conveyor frame 2, a lower conveying device 3, a clamping stepping motor 4, an upper conveyor frame 5, an upper conveying device 6, a bale-untying device 7, a driving stepping motor 8, a driving device frame 9, a gearbox pulley 10, a gearbox 11, a disk cutter 12, a dust removal motor 13, a dust removal system 14, a U-shaped gathering slide plate 15, a rear conveying motor 16, a rear conveying device 17, a rear conveying frame 18, a filter screen 19, a cutter fixing shaft 20, and a cutter driving pulley 21.

[0026] The described automatic feeding device 1 is fixed on the feeding device frame 205. The lower conveying frame 2 is fixed below the lower conveying device 3. The clamping stepping motor 4 is fixed on the motor fixing frame 201. The upper conveying frame 5 is fixed on the lower conveying cross beam 202. The end upper conveying vertical beam 505 is aligned and fixedly connected with the lower conveying cross beam 202. The upper conveying device 6 is fixed on the lower upper conveying cross beam 506. The lower end of the bundling-untying device 7 is fixed on the upper lower conveying cross beam 507 through the fixed shaft 701 and the bearing seat. The front side of the upper end is fixedly connected with the gearbox 11 by the crankshaft 705, and the rear side is fixedly connected with the bundling-untying device fixing beam 908 through the bearing seat. The driving stepping motor 8 is fixedly connected on the driving stepping motor fixing beam 903. The left end transmission frame vertical beam 906 of the driving device frame 9 is aligned with the upper conveying vertical beam 505, and the lower end transmission frame cross beam 901 is fixedly connected on the upper conveying cross beam 501. The gearbox pulley 10 is fixedly connected on the outer side of the main shaft of the gearbox 11. The gearbox 11 is fixedly connected on the gearbox fixing beam 904 and clamped in the middle of the gearbox fixing vertical beam 909. The upper end of the gearbox is fixedly connected with the transmission frame cross beam 902. The disk cutter 12 is fixedly connected with the cutter fixing shaft 20. The dust removal motor 13 is fixedly connected on the motor frame 209 and is connected to the fan on the dust removal system 14 through the pulley and the belt pulley. The dust removal system 14 is fixedly connected to the end of the lower conveying frame 2. The front side side of the upper end of the U-shaped gathering slide plate 15 is fixedly connected to the lower upper conveying cross beam 506. The front bottom edge of the U-shaped gathering slide plate 15 is aligned with the tail end of the filter screen 19. The side of the tail end of the U-shaped gathering slide plate 15 is fixedly connected to the two side cross beams of the rear conveying frame 18. The bottom edge of the lower end of the U-shaped gathering slide plate 15 floats above the conveyor belt of the rear conveying device 17. The rear conveying motor 16 is fixedly connected on the rear conveying frame 18. The rear conveying device 17 is fixedly connected on the cross beam of the rear conveying frame 18. The front end of the filter screen 19 is fixedly connected to the lower conveying frame cross beam 202, and the tail end is fixedly connected to the bottom plate of the U-shaped gathering slide plate 15. The cutter fixing shaft 20 is fixedly connected to the disk cutter fixing beam 504 through the bearing seat. The cutter driving pulley 21 is fixedly connected to the outer end of the cutter fixing shaft 20 and is connected to the gearbox pulley 10 through the belt.

[0027] The automatic feeding device 1 includes a robotic arm 201, a motor and a drive control system 202.

[0028] The lower conveying frame 2 includes a motor frame 201, a lower conveying cross beam 202, a lower conveying transverse beam 203, a lower conveying lateral support beam 204, a feeding device support frame 205, a lower conveying vertical beam 206, a lower conveying strengthening beam I 207, a lower conveying strengthening beam II 208, a dust removal system motor frame 209, and a frame strengthening vertical beam 210.

[0029] The lower conveying device 3 includes a lower driving pulley 301, a lower driving roller 302, and a lower conveyor belt 303. The lower driving pulley 301 is fixed to the outer end of the lower long transmission shaft 3026 and is connected to the clamping stepping motor 3 through a conveyor belt. The lower driving roller 302 is fixedly connected to the lower conveying longitudinal beam 202 through a bearing seat. The lower conveyor belt 303 is sleeved on the lower driving roller 302, and is sleeved in pairs at both ends of the lower driving roller 302. The inner side is clamped on the shoulder of the lower driving roller cylinder 3024, and the outer end is fixed to the outer side of the lower rubberized layer 3025 by a baffle 3022. The surface of the lower conveyor belt 303 has anti-slip patterns. The lower driving roller 302 includes a lower short transmission shaft 3021, a baffle 3022, a lower driving roller support web 3023, a lower driving roller cylinder 3024, a lower rubberized layer 3025, and a lower long transmission shaft 3026. The lower short transmission shaft 3021 is sleeved inside the lower driving roller support web 3023 and is welded and fixed. The baffle 3022 is sleeved on the outer end of the lower short transmission shaft 3021 and is fixedly connected to the lower driving roller support web 3023 at the outer end of the lower driving roller 602 by 6 M8 full-thread bolts evenly distributed at a distance of 80 mm from the axis. The support opening of the lower driving roller support web 3023 is sleeved on the inner side of the outer end periphery of the lower driving roller cylinder 3024 and is welded. The lower driving roller cylinder 3024 is a steel pipe with an outer diameter of 63 mm, a wall thickness of 12 mm, and a length of 2200 mm. There is a raised shoulder with a length of 100 mm and a height of 4 mm in the middle, and positioning stop openings with a length of 10 mm and a diameter of 49 mm are provided at both ends. The lower rubberized layer 3025 is arranged at both ends of the lower driving roller cylinder 3024, with a thickness of 4 mm and a length of 2060 mm. Its material is polyurethane soft material to reduce the pulling of fibers by friction. The structure of the right end of the lower driving roller (except for the long transmission shaft 3026) is the same as that of the left end. The lower long transmission shaft 3026 is sleeved inside the lower driving roller support web 3023 and is welded and fixed. The lower driving rollers 302 are used in pairs, and all the transmission shafts on the end driving rollers are short shafts.

[0030] The upper conveying frame 5 includes an upper conveying longitudinal beam 501, an upper conveying upper cross beam 502, a disc cutter support beam 503, a disc cutter fixing beam 504, an upper conveying vertical beam 505, an upper conveying lower longitudinal beam 506, and an upper conveying lower cross beam 507.

[0031] The upper conveying device 6, the upper driving pulley includes 601, the upper driving roller 602, and the upper conveyor belt 603. The driving roller 602 includes a short transmission shaft 6021, a baffle 6022, a driving roller support web 6023, a driving roller cylinder 6024, a rubberized layer 6025, and a long transmission shaft 6026. The driving roller 602 is similar in structure to the driving roller 302. The driving roller cylinder 6024 is a steel pipe with an outer diameter of 63 mm, a wall thickness of 12 mm, and a length of 2200 mm. There is a raised shoulder with a length of 4 mm and a length of 800 mm in the middle, and positioning stop mouths with a length of 10 mm and a hole diameter of 49 mm are provided at both ends. The rubberized layer 6025 is arranged at both ends of the driving roller cylinder 6024, with a thickness of 4 mm and a length of 700 mm.

[0032] The bundling - removing device 7 includes a fixed shaft 701, a bundling - removing circular knife 702, an eccentric shaft 703, a crank 704, a crankshaft 705, and a crankshaft counterweight 706. The tail end of the fixed shaft 701 is fixed inside the bundling - removing circular knife 702, and the front end is fixedly connected to the upper - conveying lower cross - beam 507 through a bearing seat. The center of the bundling - removing circular knife 702 is fixedly connected to the fixed shaft 701, and an eccentric hole is provided 100 mm away from the center. The front end of the eccentric shaft 703 is fixedly connected to the eccentric hole of the bundling - removing circular knife 702, and the end is installed and fixedly connected to the crank 704. The upper end of the crank 704 is fixedly connected to the crankshaft 705. The front end of the crankshaft 705 is fixedly connected to the gearbox 10, and the tail end is fixedly connected to the bundling - removing device fixed beam 908 through a bearing seat. The crankshaft counterweight 706 is fixedly connected to the crankshaft 705 and must meet the dynamic balance requirement.

[0033] The transmission device frame 9 includes a transmission frame longitudinal beam 901, a transmission frame cross - beam 902, a transmission stepping - motor fixed beam 903, a gearbox fixed beam 904, a transmission intermediate cross - beam 905, a transmission frame vertical beam 906, a transmission frame intermediate vertical beam 907, a bundling - removing device fixed beam 908, and a gearbox fixed vertical beam 909.

[0034] The rotary disk cutter 12 is provided with a serrated alloy blade with a diameter of 300 mm.

[0035] Although the foregoing embodiments have described the present invention in detail, they are not all embodiments of the present invention and are not intended to limit the present invention. Any improvement made within the principles of the present invention is included within the protection scope of the present invention.

Claims

1. An automatic bale-untying and segmenting method and device for fiber-type industrial hemp, characterized in that: The industrial hemp bales are clamped by the lower conveyor belt (303) and the upper conveyor belt (603), unbundled by the unbundling circular knife (702), and then the hemp stalks are cut by the disk cutter (12). Finally, they slide down to the rear conveying device (17) through the U-shaped gathering slide plate (15), and the segmented hemp stalks are conveyed by the conveying device (17) to the next process. The specific steps are as follows: First step, the industrial hemp bales are conveyed to position a on the lower conveyor belt (303), and the industrial hemp bales are conveyed backward to position b under the drive of the lower conveyor belt (303), and then the industrial hemp bales are clamped and conveyed backward by the lower conveyor belt (303) and the upper conveyor belt (603).

2. Second step, when the industrial hemp bales are conveyed to position c, the unbundling circular knife (702) swings horizontally to unbundle the conveyed industrial hemp bales, and the unbundled hemp stalks continue to be conveyed backward under the clamping action.

3. Third step, when the industrial hemp is conveyed to position d, the disk cutter (12) rotates in the same direction to segment the hemp stalks, and the segmented hemp stalks continue to be conveyed backward to position e.

4. Fourth step, when the hemp stalks reach position e, the industrial hemp slides down through the U-shaped gathering slide plate (15), gradually gathers and aligns during the sliding process, falls onto the conveyor belt at position f of the rear conveying device (17), and then continues to be conveyed backward to the next process.

5. An automatic bale-untying and segmenting method and device for fiber-type industrial hemp, characterized in that: The flexible clamping technology is adopted: the lower conveyor belt (303) and the upper conveyor belt (603) use rubber belts with anti-slip patterns on their surfaces, and the clamping force can be adjusted (0.1 - 0.5 MPa) to reduce the damage to the stalks and the crushing of fiber bundles. The crank pendulum type disk unbundling and the disk cutter work together to reduce the mechanical extrusion damage to the fibers.

6. An automatic bale-untying and segmenting device for fiber-type industrial hemp for implementing the method according to claim 1, characterized in that, It includes a lower conveying frame (1), a lower conveying device (2), a clamping stepping motor (3), an upper conveying frame (4), an upper conveying device (5), an unbundling device (6), a driving stepping motor (7), a driving device frame (8), a gearbox pulley (9), a gearbox (10), a disk cutter (12), a U-shaped gathering slide plate (15), a rear conveying motor (16), a rear conveying device (17), a rear conveying frame (18), a cutter fixing shaft (208), and a cutter driving pulley (21).

7. The lower conveying frame 1 is fixed below the lower conveying device (2), the clamping stepping motor (3) is fixed on the motor fixing frame (201), the upper conveying frame (4) is fixed on the lower conveying longitudinal beam (202), the end upper conveying vertical beam (505) is aligned and fixedly connected with the lower conveying longitudinal beam (202), the upper conveying device (5) is fixed on the lower upper conveying longitudinal beam (506), the lower end of the bundling removal device (6) is fixedly connected with the bearing seat through the fixed shaft (701) on the lower upper conveying cross beam (507), the front side of the upper end is fixedly connected with the gearbox (10) by the crankshaft (705), and the rear side is fixedly connected with the bundling removal device fixed beam (908) through the bearing seat. The driving stepping motor (7) is fixedly connected to the driving frame cross beam (902). The left end driving frame vertical beam (906) of the driving device frame (8) is aligned with the upper conveying vertical beam (505), and the lower end driving frame longitudinal beam (901) is fixedly connected to the upper conveying longitudinal beam (501). The gearbox pulley (9) is fixedly connected to the outside of the main shaft of the gearbox (10). The so-called gearbox (10) is fixedly connected to the gearbox fixed beam (904), clamped in the middle of the gearbox fixed vertical beam (909), and the upper end of the gearbox is fixedly connected to the driving frame cross beam (902). The disc cutter (12) is fixedly connected to the cutter fixed shaft (208). The upper side of the side of the so-called U-shaped gathering slide plate (15) is fixedly connected to the end upper conveying vertical beam (505). The bottom edge of the upper end of the U-shaped gathering slide plate (15) is aligned with the tail end of the lower rubber conveyor belt (204). The lower side of the side of the U-shaped gathering slide plate (15) is fixedly connected to the two side longitudinal beams of the rear conveying frame (18). The bottom edge of the lower end of the U-shaped gathering slide plate (15) floats on the upper side of the conveyor belt of the rear conveying device (17). The rear conveying motor (16) is fixedly connected to the rear conveying frame (18). The rear conveying device (17) is fixedly connected to the longitudinal beam of the rear conveying frame (18). The cutter fixed shaft (208) is fixedly connected to the disc cutter fixed beam (504) through the bearing seat. The cutter driving pulley (21) is fixedly connected to the outer end of the cutter fixed shaft (208) and is connected to the gearbox pulley (9) by a belt.

8. The lower conveying device (2) includes a lower driving pulley (301), a lower driving roller (302), and a lower conveyor belt (303). The lower conveyor belt (303) is made of rubber and has anti-slip patterns on its surface. The clamping force is adjustable (0.1 - 0.5 MPa) to reduce the risk of pinching the stalks or crushing the fiber bundles. The lower driving roller (302) includes a lower short transmission shaft (3021), a baffle (3022), a lower driving roller support web (3023), a lower driving roller barrel (3024), a lower rubber coating layer (3025), and a lower long transmission shaft (3026). The lower driving roller barrel (3024) is a steel pipe with an outer diameter of 63 mm, a wall thickness of 12 mm, and a length of 2200 mm. It has a raised shoulder with a length of 100 mm and a height of 4 mm in the middle, and positioning stop ports with a length of 10 mm and a diameter of 49 mm at both ends. The lower rubber coating layer (3025) is provided at both ends of the lower driving roller barrel (3024), with a thickness of 4 mm and a length of 2060 mm. Its material is polyurethane soft material to reduce the pulling of fibers due to friction.

9. The upper driving roller (602) includes a short transmission shaft (6021), a baffle (6022), a driving roller support web (6023), a driving roller barrel (6024), a rubber coating layer (6025), and a long transmission shaft (6026). The driving roller barrel (6024) is a steel pipe with an outer diameter of 63 mm, a wall thickness of 12 mm, and a length of 2200 mm. It has a raised shoulder with a length of 800 mm and a height of 4 mm in the middle, and positioning stop ports with a length of 10 mm and a diameter of 49 mm at both ends. The rubber coating layer (6025) is provided at both ends of the driving roller barrel (6024), with a thickness of 4 mm and a length of 700 mm.

10. The bundling device (6) includes a fixed shaft (701), a bundling circular knife (702), an eccentric shaft (703), a crank (704), and a crank shaft (705). The tail end of the fixed shaft (701) is fixed inside the bundling circular knife (702), and the front end is fixedly connected to the upper conveying lower cross beam (507) through a bearing seat. The center of the bundling circular knife (702) is fixedly connected to the fixed shaft (701), and an eccentric hole is provided 100 mm away from the center. The front end of the eccentric shaft (703) is fixedly connected to the eccentric hole of the bundling circular knife (702), and the tail end is installed and fixedly connected to the crank (704). The upper end of the crank (704) is fixedly connected to the crank shaft (705). The front end of the crank shaft (705) is fixedly connected to the gearbox (10), and the tail end is fixedly connected to the bundling device fixed beam (908) through a bearing seat.

11. The disc cutter (12) is a serrated alloy blade with a diameter of 300 mm.

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