Hemp peeling machine

Abstract

The invention discloses a ramie peeling machine, and relates to the technical field of peeling equipment, the ramie peeling machine comprises a rack, a feeding port arranged on the rack, at least two groups of rolling assemblies, a peeling assembly and a ramie lapping rod, the feeding port is arranged on one side of the rack, the ramie lapping rod is arranged on one side opposite to the feeding port, the rolling assemblies are arranged at the rear end of the feeding port, and the peeling assembly is arranged on the rack. The rolling assembly comprises two symmetrically-arranged rolling shafts, a plurality of rolling protruding strips slidably installed in the rolling shafts and a driving assembly used for driving the rolling protruding strips to stretch out and draw back in the radial direction. The stripping assembly is arranged on the rack, is arranged at the rear end of the rolling assembly and is used for stripping the rolled ramie plants; the rolling assembly and the stripping assembly are driven by a driving device to rotate; the ramie peeling machine further comprises a diameter screening device, and the diameter screening device is arranged at the front end of the feeding opening and used for conducting diameter screening on the ramie plants entering the ramie peeling machine, so that effective screening of the diameters of ramie stems is achieved, the gap between the rolling wheels is flexibly adjusted according to the thickness of the ramie stems, and the ramie peeling efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of peeling equipment technology, and more specifically it relates to a hemp peeling machine. Background Technology

[0002] Ramie is an important fiber crop. Its stalks contain abundant bast fibers, which require a peeling process to obtain usable fiber raw materials. Traditional ramie peeling processes rely heavily on manual labor, resulting in high labor intensity and low efficiency. With the improvement of mechanization, ramie peeling machines are increasingly widely used in the initial processing of ramie. Existing ramie peeling machines typically include a feed inlet, a roller pressing assembly, and a peeling assembly. The roller pressing rollers flatten and compact the ramie stalks, creating conditions for separation between the outer skin and the xylem, thus facilitating the subsequent peeling process.

[0003] However, existing ramie stripping machines generally use fixed-structure roller presses, typically consisting of one or more pairs of symmetrically arranged metal rollers. These rollers rotate and press the ramie plants in opposite directions during operation, generating significant radial pressure. However, due to the natural differences in the diameter of ramie plants, and the fact that the same batch often contains ramie stalks of varying thicknesses, the existing roller press structure has significant limitations in adaptability.

[0004] (1) Uneven roller pressing problem: When processing hemp stems with larger diameter, the roller can provide sufficient extrusion force to loosen the outer bark and wood. However, for hemp stems with smaller diameter, the contact gap between them and the roller is too large, resulting in insufficient roller pressing and weakened rolling effect, which cannot effectively destroy the bonding force between the bark and wood.

[0005] (2) Reduced efficiency of subsequent stripping: If the hemp stems with smaller diameters are not sufficiently rolled, their bark and xylem remain tightly bonded. When entering the stripping assembly, incomplete stripping and high fiber residue are likely to occur, which not only affects the integrity of the fibers but also increases the difficulty of secondary processing.

[0006] (3) Poor adaptability and unstable processing quality: Fixed rollers are usually only suitable for hemp stalks with a certain diameter. Once the diameter of the hemp stalk deviates from this range, the processing effect will be uneven, thus affecting the applicability of the whole machine and the stability of the processing quality.

[0007] Therefore, existing ramie stripping machines have significant limitations when dealing with ramie plants of different diameters. In particular, the problem of insufficient roller pressure on small-diameter ramie stalks has not been effectively solved. There is an urgent need for a ramie stripping machine that can distinguish ramie stalk diameter and adjust the gap between rollers to solve the above problems. Summary of the Invention

[0008] In view of the obvious limitations of existing technologies in dealing with ramie plants of different diameters, especially the problem of insufficient roller pressing for small-diameter ramie stalks, the purpose of this invention is to provide a ramie stripping machine that can effectively screen the diameter of ramie stalks and flexibly adjust the gap between the rollers according to the thickness of the ramie stalks, thereby significantly improving the stripping efficiency and the scope of application.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A ramie stripping machine includes a frame, and a feeding inlet, a roller pressing assembly, a stripping assembly, and ramie-laying rods mounted on the frame. The feeding inlet is located on one side of the frame, and the ramie-laying rods are located on the opposite side of the feeding inlet. The roller pressing assembly is located at the rear end of the feeding inlet and at least two sets are provided. The roller pressing assembly includes: two symmetrically arranged roller pressing shafts, a plurality of roller pressing protrusions slidably installed within the roller pressing shafts, and a drive assembly for driving the roller pressing protrusions to extend and retract radially. The stripping assembly is mounted on the frame and located at the rear end of the roller pressing assembly for stripping the ramie plants after roller pressing. The roller pressing assembly and the stripping assembly are driven to rotate by a drive device. The ramie stripping machine also includes a diameter screening device located at the front end of the feeding inlet for diameter screening of the incoming ramie plants.

[0011] The advantages of this scheme are at least as follows: the ramie plants to be stripped are first placed in a diameter screening device, and the ramie plants are pre-treated by screening through the diameter screening device. At the same time, the sorted ramie plants are transported to the subsequent roller pressing component according to their coarseness and fineness. Through the graded treatment, the problem of fiber damage or insufficient roller pressing caused by uneven force on ramie plants that are too coarse or too fine during processing is effectively avoided, which would affect the quality and efficiency of subsequent stripping.

[0012] In addition, the roller pressing protrusions in the roller pressing assembly can extend and retract radially along the roller pressing axis under the action of the drive assembly. This allows users to adjust the extension amount of the roller pressing protrusions according to the shape of ramie stalks of different thicknesses, achieving uniform and controllable pre-pressing treatment. This effectively destroys the xylem structure of the ramie stalks, creating favorable conditions for subsequent stripping. It effectively solves the obvious limitations of existing ramie stripping machines when dealing with ramie plants of different diameters, especially the problem of insufficient roller pressing for small-diameter ramie stalks.

[0013] The present invention is further configured such that: the driving assembly includes a lead screw, a worm gear, a worm, a sliding sleeve, and a connecting rod assembly; the lead screw is axially arranged along the roller shaft and rotatably installed inside the roller shaft, and one end of the lead screw is fixedly connected to the worm gear; the worm meshes with the worm gear for transmission, both the worm gear and the worm are installed inside the roller shaft, and one end of the worm extends out of the outer wall of the roller shaft, and has an internal hexagonal groove at the extended end; the sliding sleeve is threadedly connected to the lead screw.

[0014] The advantages of this scheme are at least as follows: by setting up a drive assembly consisting of a lead screw, worm gear, worm, sliding sleeve, and connecting rod assembly, precise control of the radial extension and retraction motion of the roll forming rib is achieved. When the roll forming rib needs to be adjusted, a hex wrench is inserted into the internal hexagonal groove at the end of the worm, thereby rotating the worm through the hex wrench. The worm drives the worm gear to rotate, which in turn drives the lead screw fixedly connected to it to rotate. When the lead screw rotates, the sliding sleeve moves axially, and the axial motion is converted into the radial extension and retraction motion of the roll forming rib through the connecting rod assembly.

[0015] The present invention is further configured such that: the connecting rod assembly includes a plurality of connecting rods, the plurality of connecting rods are arranged around the sliding sleeve, and one end of the connecting rod is hinged to the roller pressing protrusion and the other end is hinged to the sliding sleeve;

[0016] The lead screw includes a left-threaded rod and a right-threaded rod, and the threads of the left-threaded rod and the right-threaded rod are in opposite directions;

[0017] The sliding sleeve and the connecting rod assembly are respectively arranged in two symmetrical groups inside the roller pressing shaft, and the roller pressing protrusion is driven to extend and retract radially by the left threaded rod and the right threaded rod.

[0018] The advantages of this scheme are at least as follows: by setting the left and right threaded rods with opposite thread directions and cooperating with the symmetrical arrangement of the sliding sleeve, the synchronous drive of the two sets of connecting rod assemblies can be achieved, so that the roller pressing convex strip can be stretched and contracted uniformly in the radial direction, avoiding the imbalance problem caused by unilateral adjustment.

[0019] Meanwhile, the radial extension and retraction of the roller pressing strip can be manually adjusted according to the diameter of the ramie plant, enabling the processing of ramie of different diameters on the same equipment, improving peeling uniformity, and avoiding incomplete peeling or fiber damage due to differences in plant diameter.

[0020] The present invention is further configured such that: the roller pressing strip includes: a base pressing strip and an arc-shaped protrusion; one end of the base pressing strip is hinged to the connecting rod assembly, and the other end is provided with a dovetail groove; one end of the arc-shaped protrusion is provided with a dovetail strip, and the arc-shaped protrusion is detachably installed in the dovetail groove of the base pressing strip through the dovetail strip and fixed by a locking member.

[0021] The advantages of this scheme are at least as follows: the roller pressing strip is set as a basic pressing strip and an arc-shaped pressing strip, and a detachable connection is achieved through a locking device. When one of the arc-shaped pressing strips is worn or damaged, only the individual arc-shaped pressing strip needs to be replaced, avoiding the need to replace the entire roller pressing roller and reducing maintenance costs.

[0022] Meanwhile, the detachable arc-shaped convex strips can be replaced with convex strips of different sizes or surface shapes according to the diameter of different ramie plants and the fiber separation requirements, so that the ramie stripping machine can flexibly adapt to the characteristics of different batches or different origins of ramie and improve the versatility of the equipment.

[0023] Furthermore, through the cooperation of the dovetail groove and the dovetail strip, combined with the fixing of the locking parts, the arc-shaped protrusion is more firmly fixed on the base strip, preventing the arc-shaped protrusion from loosening or falling off under high-speed operation and alternating loads, thus ensuring uniform force and stable operation during the rolling process.

[0024] The present invention is further configured such that the diameter screening device includes:

[0025] The first roller conveyor belt is located at the front end of the feed inlet and is divided into a fine diameter conveying channel and a coarse diameter conveying channel by a partition plate.

[0026] The second roller conveyor belt is positioned above the first roller conveyor belt, and the rollers on the second roller conveyor belt are arranged perpendicularly to the rollers on the first roller conveyor belt in space, for screening the diameter of ramie plants.

[0027] The material distribution device is installed on the second roller conveyor belt and is used to distribute ramie plants.

[0028] The advantages of this scheme are at least as follows: the material distribution device is set on the second roller conveyor belt, which can orderly divide the plants before the ramie diameter is screened, thus avoiding a large number of ramie plants accumulating on the second roller conveyor belt and causing accumulation that affects the screening of ramie plants;

[0029] Simultaneously, the ramie plants, after being diverted, fall onto the second roller conveyor belt. When the diameter of the ramie plant is larger than the gap between two adjacent rollers on the second roller conveyor belt, the ramie plant is conveyed through the rotating rollers of the second roller conveyor belt, thus transporting the ramie plant to the end of the second roller conveyor belt, where it rolls into the coarse-diameter conveying channel driven by the first roller conveyor belt. When the diameter of the ramie plant is smaller than the gap between two adjacent rollers on the second roller conveyor belt, the ramie plant passes through the gap between the two adjacent rollers and falls into the fine-diameter channel of the first roller conveyor belt, thus being conveyed to the feed inlet by the first roller conveyor belt for further sorting and pressing of the sifted ramie plants.

[0030] The present invention is further configured such that the material dispensing device includes:

[0031] The feeding inlet is funnel-shaped and used to guide the plant stems into it;

[0032] The material distribution wheel is located below the material distribution feed inlet, and the circumference of the material distribution wheel is provided with multiple radially extending grooves;

[0033] A diversion channel is provided below the feeding inlet, and the diversion wheel is rotatably installed in the diversion channel to divert and discharge plants of different diameters.

[0034] A drive motor is installed on the side wall of the diversion channel and connected to the material distribution wheel to drive the material distribution wheel to rotate.

[0035] A guide plate, located below the second roller conveyor belt, is used to guide plants that have not passed through the second roller conveyor belt into the first roller conveyor belt.

[0036] The advantages of this scheme are at least as follows: When the material distribution device is in use, ramie plants are first fed in through the material distribution inlet. Then, the material distribution wheel rotates continuously under the drive of the drive motor. The radial grooves set on its circumference receive and separate the ramie plant stems in sequence, so that the ramie plant stems enter the distribution channel in an orderly manner, realizing efficient separation and diameter-differentiated distribution of ramie plants, avoiding the accumulation and blockage of a large number of ramie plants, which would affect subsequent processes.

[0037] The ramie plant stalks, after being diverted, are screened by the second roller conveyor belt. Plants that do not pass through the gap between adjacent rollers of the second roller conveyor belt are transported to the end by the second roller conveyor belt. Then, the plant stalks are guided to the first roller conveyor belt by the guide plate, thus realizing a continuous feeding process. This improves the accuracy and adaptability of the peeling operation and can effectively avoid the problem that ramie stalks with smaller diameters have too large a contact gap with the rollers, resulting in insufficient roller pressing, weakened crushing effect, and inability to effectively break the bonding force between the ramie bark and the xylem.

[0038] The present invention is further configured such that: the peeling assembly includes a primary peeling wheel, a secondary driven peeling wheel, a secondary active peeling wheel, a tertiary driven peeling wheel, and a hemp-spinning wheel, which are sequentially arranged on the frame and located at the rear end of the roller pressing assembly; the secondary driven peeling wheel meshes with the secondary active peeling wheel, and the secondary active peeling wheel meshes with the tertiary driven peeling wheel.

[0039] The advantages of this scheme are at least as follows: During operation, the ramie stalks are sequentially subjected to initial peeling by a primary peeling wheel, followed by further peeling through the meshing of a secondary driven peeling wheel and a secondary active peeling wheel, and finally by the meshing of a secondary active peeling wheel and a tertiary driven peeling wheel. This process gradually separates the epidermis from the fibers. The stripped ramie is then shaken and spread out by a ramie-spinning wheel. This achieves multi-stage continuous peeling, resulting in a more thorough peeling effect and better fiber integrity. It also avoids the problems of clogging and incomplete peeling that are common with single-stage peeling, thus improving the peeling quality and the stability of the equipment operation.

[0040] The present invention is further configured such that the secondary driven peeling wheel, the secondary active peeling wheel, and the tertiary driven peeling wheel have similar structures, including a rotating shaft, a plurality of peeling discs, a plurality of peeling blades, and a plurality of peeling pads. The peeling discs are fixed to the rotating shaft and are evenly arranged on the rotating shaft. The plurality of peeling blades are detachable from the peeling discs by locking members, and the peeling pads are detachably mounted on the peeling blades by locking members.

[0041] The advantages of this design are at least as follows: the peeling blades and peeling pads are detachable and installable via locking mechanisms, which greatly facilitates the maintenance and replacement of vulnerable parts and significantly reduces equipment maintenance costs and downtime; at the same time, the design has good versatility and interchangeability, suitable for peeling needs of different specifications or wear levels, and allows for flexible adjustment or replacement of peeling pads of different shapes and hardness according to the characteristics of the processed materials (such as hemp stalk thickness, fiber toughness, etc.), thereby optimizing the peeling effect and improving adaptability to different crops.

[0042] The invention is further configured such that: a first receiving plate is provided below the primary stripping wheel for receiving the ramie plants after roller pressing and guiding them between the secondary driven stripping wheel and the secondary active stripping wheel; the first receiving plate is slidably mounted on the frame, and an elastic reset component is provided between the first receiving plate and the frame; a second receiving plate is provided below the meshing position of the secondary active stripping wheel and the tertiary driven stripping wheel for receiving the stripped ramie plants.

[0043] The advantages of this scheme are at least as follows: A sliding and elastically reset first receiving plate is installed below the first-stage peeling wheel, which can effectively receive the ramie plants output by the roller pressing assembly and guide them smoothly into the meshing area of ​​the second-stage driven peeling wheel and the second-stage active peeling wheel, preventing deviation or jamming. At the same time, it can buffer vibration and automatically reset when encountering large or hard materials, protecting the core components and extending their service life. A second receiving plate is installed below the meshing position of the second-stage active peeling wheel and the third-stage driven peeling wheel, which can receive the material that has been initially peeled, preventing it from falling or getting tangled, and ensuring smooth entry into the subsequent peeling stages.

[0044] The present invention is further configured such that: the feeding inlet is rotatably mounted on the frame, and a locking component is provided between the feeding inlet and the frame for fixing the feeding inlet to the frame.

[0045] The advantages of this solution are at least as follows: the feed inlet can be flexibly opened and securely fixed by rotating the mounting and engaging the locking assembly. When maintenance or cleaning of internal blockages is required, the feed inlet can be unlocked and opened, facilitating access to the stripping and rolling components and significantly improving maintenance convenience; during operation, the locking assembly reliably fixes the feed inlet, ensuring stable and safe feeding and preventing loosening or displacement during operation.

[0046] In summary, the present invention has at least the following advantages:

[0047] 1. By setting up a diameter screening device, ramie plants can be pre-treated before entering the feed inlet, and the ramie can be graded according to their diameter and conveyed to the subsequent roller pressing components. This avoids fiber damage or insufficient roller pressing caused by uneven force on plants of different diameters during the roller pressing process, and effectively improves the uniformity and processing quality of subsequent ramie stripping. At the same time, the grading process improves the adaptability of the feed and the overall operating efficiency of the equipment.

[0048] 2. By setting up retractable and adjustable roller pressing strips and their drive components in the roller pressing assembly, users can adjust the extension of the roller pressing strips according to the different diameters of ramie plants, achieving uniform and controllable pre-pressing of the ramie stalks, fully destroying the xylem structure, and creating favorable conditions for subsequent stripping processes; at the same time, the precise transmission structure of screw, worm gear, worm, sliding sleeve and connecting rod is adopted to achieve radial synchronous extension and retraction of the roller pressing strips, avoiding the imbalance problem caused by unilateral adjustment, and improving the stability and consistency of roller pressing;

[0049] By setting a detachable structure for the roller pressing strip (i.e., the base pressing strip and the arc-shaped protrusion are fixedly connected by dovetail grooves, dovetail strips and locking parts), not only can the arc-shaped protrusion be replaced individually after wear or damage, reducing maintenance costs and downtime; at the same time, different shapes or specifications of protrusions can be replaced according to different hemp stalk diameters and fiber separation requirements, enhancing the flexibility and versatility of the equipment, and ensuring the stability and reliability of the protrusion under high-speed operation and alternating loads;

[0050] 3. By setting up a multi-stage structure for the peeling components (including a primary peeling wheel, a secondary driven peeling wheel, a secondary active peeling wheel, a tertiary driven peeling wheel, and a ramie-spreading wheel), continuous operation from initial peeling to deep peeling and then to spreading and unfolding is achieved, so that the ramie fibers are gradually and thoroughly separated from the epidermis, resulting in a more complete peeling effect and better fiber integrity; at the same time, it avoids the problems of easy clogging and incomplete peeling in single-stage peeling, significantly improving the peeling quality and the stability of equipment operation;

[0051] Furthermore, the secondary driven peeling wheel, the secondary active peeling wheel, and the tertiary driven peeling wheel are designed as detachable structures, which effectively reduces maintenance costs and downtime. In addition, this structure can be flexibly adjusted or replaced according to different material characteristics.

[0052] 4. By installing a sliding and elastically reset first receiving plate below the primary stripping wheel, the ramie can be effectively received and guided smoothly into the secondary stripping area, preventing deviation or blockage. It has buffering and automatic reset functions, absorbing the impact of large pieces of material, protecting core components and extending service life. Simultaneously, a second receiving plate is installed below the meshing position of the secondary and tertiary stripping wheels, ensuring a smooth transition of material to subsequent stripping stages, preventing sagging or entanglement. This optimizes the overall material flow path and improves the continuity and stability of operation.

[0053] 5. By designing the feed inlet to be rotatable and equipped with a locking component, flexible opening and reliable fixation are achieved. When maintenance or clearing blockages is required, the feed inlet can be easily opened for convenient access to the roller pressing and peeling components, improving maintenance convenience; during operation, the locking component ensures that the feed inlet is firmly fixed, preventing loosening or displacement during operation and ensuring the stability and safety of feeding. Attached Figure Description

[0054] Figure 1 This is an overall schematic diagram of this embodiment;

[0055] Figure 2 This is an overall schematic diagram of the diameter removal screening device in this embodiment;

[0056] Figure 3 This is an overall schematic diagram of the roller pressing assembly in this embodiment;

[0057] Figure 4 This is an exploded view of the roll forming assembly;

[0058] Figure 5 This is a schematic diagram of the sliding sleeve and connecting rod assembly in the roll forming assembly.

[0059] Figure 6 This is a three-dimensional sectional view of the roll forming assembly;

[0060] Figure 7 This is an exploded view of the roller-pressed protrusions in this embodiment;

[0061] Figure 8 This is a schematic diagram of the overall diameter screening device;

[0062] Figure 9 This is a three-dimensional sectional view of the diameter screening device;

[0063] Figure 10 for Figure 2A three-dimensional sectional view;

[0064] Figure 11 This is a schematic diagram of an explosion of one of the peeling wheels.

[0065] Reference numerals: 1. Frame; 2. Feed inlet; 3. Roller assembly; 301. Roller shaft; 302. Roller protrusion; 3021. Base strip; 3022. Arc-shaped protrusion; 303. Drive assembly; 3031. Lead screw; 3032. Worm gear; 3033. Worm; 3034. Sliding sleeve; 3035. Connecting rod assembly; 4. Diameter screening device; 401. First roller conveyor belt; 402. Second roller conveyor belt; 403. Material distribution device; 4031. Material distribution feed inlet; 40 32. Material distribution wheel; 4033. Diversion channel; 4034. Drive motor; 4035. Guide plate; 5. Hemp stalk; 6. Peeling assembly; 601. Primary peeling wheel; 602. Secondary driven peeling wheel; 603. Secondary active peeling wheel; 604. Tertiary driven peeling wheel; 605. Hemp-spinning wheel; 7. Rotating shaft; 8. Peeling disc; 9. Peeling blades; 10. Peeling pad; 11. First receiving plate; 12. Elastic reset assembly; 13. Second receiving plate; 14. Locking assembly. Detailed Implementation

[0066] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other.

[0067] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0068] Example 1

[0069] like Figure 1 As shown, a hemp stripping machine includes a frame 1, a feeding inlet 2, a roller pressing assembly 3, a stripping assembly 6, and hemp stalks 5 mounted on the frame 1. In some embodiments, the frame 1 is equipped with wheels at the bottom, a handrail is installed at one end of the frame 1, and a liftable stable support frame is also provided at the front end of the wheels to facilitate flexible transfer when needed. During operation, the support frame keeps the machine body stable, thereby further improving the mobility and operational stability of the hemp stripping machine.

[0070] The stripping assembly 6 is mounted on the frame 1 and located at the rear end of the roller pressing assembly 3. It is used to strip the ramie plants after roller pressing. Both the roller pressing assembly 3 and the stripping assembly 6 are driven to rotate by a drive device, which is a belt and gear set. It can be driven by a diesel engine or a gasoline engine, thereby driving the roller pressing assembly 3 and the stripping assembly 6 to rotate. A protective shell is also installed on the outer periphery of the belt and gear set.

[0071] like Figure 2 As shown, the feeding inlet 2 is located on one side of the frame 1, and one end of it is hinged to the frame 1 via a rotating shaft 7. It can be opened by rotating around the rotating shaft 7. A locking component 14 is provided between the feeding inlet 2 and the frame 1 to fix the feeding inlet 2 to the frame 1. When it is necessary to inspect the roller pressing component 3 or clean the blockage, the locking component 14 is unlocked and the feeding inlet 2 is opened to facilitate access to the roller pressing component 3, which greatly improves the convenience of maintenance. During operation, the locking component 14 reliably fixes the feeding inlet 2 to ensure stable and safe feeding and prevent loosening or displacement during operation. In some embodiments, the locking component 14 is a latch lock. The specific structure of the latch lock is that its lock body achieves a rotating structure through the lock seat pin, and the lock tongue and lock cylinder are integrated.

[0072] like Figure 3 As shown, the ramie stalk 5 is located on the opposite side of the feeding inlet 2, and the roller pressing assembly 3 is located at the rear end of the feeding inlet 2, and there are at least two sets. The two sets of roller pressing assemblies 3 are rotatably mounted on the frame 1 through rotating bearings and are staggered up and down along the conveying direction to form an interlocking structure, thereby realizing the roller pressing of ramie.

[0073] like Figure 4 As shown, the roller pressing assembly 3 includes: two roller pressing shafts 301 arranged symmetrically, a plurality of roller pressing protrusions 302 slidably installed in the roller pressing shafts 301, and a drive assembly 303 for driving the roller pressing protrusions 302 to extend and retract radially. In some preferred embodiments, a scraper is also provided on the outer surface of the roller pressing shafts 301. The scraper mainly scrapes off dirt stuck to the side wall of the roller pressing protrusions 302, thereby preventing dirt from entering the interior of the roller pressing shafts 301 and affecting the drive assembly 303 inside.

[0074] like Figures 4-6As shown, the drive assembly 303 includes a lead screw 3031, a worm gear 3032, a worm 3033, a sliding sleeve 3034, and a connecting rod assembly 3035. The lead screw 3031 is axially arranged along the roller shaft 301 and rotatably mounted inside the roller shaft 301. One end of the lead screw 3031 is fixedly connected to the worm gear 3032. The worm 3033 meshes with the worm gear 3032 for transmission. Both the worm gear 3032 and the worm 3033 are installed inside the roller shaft 301, and one end of the worm 3033 extends out of the outer wall of the roller shaft 301 and has an internal hexagonal groove at the extended end. The sliding sleeve 3034 is threadedly connected to the lead screw 3031 and can slide axially with the lead screw 3031 as it rotates.

[0075] like Figure 5 As shown, the connecting rod assembly 3035 includes several connecting rods, which are arranged around the sliding sleeve 3034. One end of each connecting rod is hinged to the roller pressing protrusion 302, and the other end is hinged to the sliding sleeve 3034. The lead screw 3031 includes a left threaded rod and a right threaded rod, with the thread directions of the left threaded rod and the right threaded rod being opposite. The sliding sleeve 3034 and the connecting rod assembly 3035 are arranged in two symmetrical groups inside the roller pressing shaft 301, and the left threaded rod and the right threaded rod jointly drive the roller pressing protrusion 302 to extend and retract radially.

[0076] Before using the ramie stripping machine, the user can insert a hex wrench into the internal hexagonal groove at the end of the worm 3033 and rotate the worm 3033 by the hex wrench. The worm 3033 drives the worm wheel 3032 and the lead screw 3031 fixedly connected to it to rotate. When the lead screw 3031 rotates, the sliding sleeve 3034 moves axially, and the axial movement is converted into the radial extension and retraction movement of the roller pressing protrusion 302 through the connecting rod assembly 3035. This allows the user to adjust the extension of the roller pressing protrusion 302 according to the shape of the ramie stalks of different thicknesses, thereby adjusting the gap between the two roller pressing assemblies 3. This effectively adapts to ramie plants of different diameters and solves the problem of insufficient roller pressing for small-diameter ramie stalks in existing ramie stripping machines.

[0077] Example 2

[0078] like Figure 7 As shown, in some embodiments, to facilitate the individual replacement of worn parts, the roller pressing strip 302 includes: a base pressing strip 3021 and an arc-shaped protrusion 3022; one end of the base pressing strip 3021 is hinged to the connecting rod assembly 3035, and the other end is provided with a dovetail groove; one end of the arc-shaped protrusion 3022 is provided with a dovetail strip, and the arc-shaped protrusion 3022 is detachably installed in the dovetail groove of the base pressing strip 3021 through the dovetail strip and is fixed by a locking member.

[0079] The roller-pressed protrusion 302 includes: a base pressing strip 3021 and an arc-shaped protrusion 3022; one end of the base pressing strip 3021 is hinged to the connecting rod assembly 3035, and the other end is provided with a dovetail groove; one end of the arc-shaped protrusion 3022 is provided with a dovetail strip, and the arc-shaped protrusion 3022 is detachably installed in the dovetail groove of the base pressing strip 3021 through the dovetail strip and is fixed by a locking member;

[0080] Preferably, the locking element is a fixing bolt. The arc-shaped protrusion 3022 is provided with several mounting holes, and the base pressure strip 3021 is provided with several threaded holes that mate with it. During installation, the locking element is passed through the mounting holes and threadedly connected to the threaded holes, thereby reliably fixing the arc-shaped protrusion 3022 to the base pressure strip 3021. When one of the arc-shaped protrusions 3022 is worn or damaged, only the single arc-shaped protrusion 3022 needs to be replaced, without replacing the entire roller, which significantly reduces maintenance costs.

[0081] Example 3

[0082] like Figure 8 As shown, the ramie stripping machine also includes a diameter screening device 4, located at the front end of the feeding inlet 2, for screening the diameter of the incoming ramie plants. The diameter screening device 4 includes: a first roller conveyor belt 401, located at the front end of the feeding inlet 2 and divided into a fine diameter conveying channel and a coarse diameter conveying channel by a partition plate; a second roller conveyor belt 402, located above the first roller conveyor belt 401, with the rollers on the second roller conveyor belt 402 and the rollers on the first roller conveyor belt 401 arranged perpendicularly in space, for screening the diameter of the ramie plants; and a material distribution device 403, located on the second roller conveyor belt 402, for distributing the ramie plants.

[0083] The spacing between the rollers on the second roller conveyor belt 402 is set according to the diameter range of the ramie plants, preferably larger than the preset medium diameter value of the ramie plants. This allows ramie plants with a diameter smaller than the preset medium diameter to pass smoothly through the gap between adjacent rollers, while ramie plants with a larger diameter cannot pass through, thus achieving the screening of ramie of different diameters. Preferably, the spacing of the second roller conveyor belt 402 is adjustable to adapt to the screening requirements of ramie of different specifications, and the roller surface on the second roller conveyor belt 402 is provided with several protrusions to increase the friction between the ramie plants and the rollers.

[0084] like Figure 9As shown, the feeding device 403 includes: a feeding inlet 4031, which is funnel-shaped and used to guide plant stems into the feed; a feeding wheel 4032, which is located below the feeding inlet 4031 and has multiple radially extending grooves on its circumference; a diversion channel 4033, which is located below the feeding inlet 4031 and has the feeding wheel 4032 rotatably mounted in the diversion channel 4033 to divert and discharge plants of different diameters; a drive motor 4034, which is located on the side wall of the diversion channel 4033 and connected to the feeding wheel 4032 to drive the feeding wheel 4032 to rotate; and a guide plate 4035, which is located below the second roller conveyor belt 402 to guide plants that have not passed through the second roller conveyor belt into the first roller conveyor belt 401.

[0085] In operation, ramie is fed in through the feeding inlet 4031. The feeding roller 4032 rotates under the drive of the motor 4034, and its grooves receive and separate the ramie one by one, allowing the stalks to enter the diversion channel 4033 in an orderly manner, achieving efficient separation and avoiding accumulation and blockage. The diverted ramie falls onto the second roller conveyor belt 402. Large-diameter ramie is transported to the end and falls into the coarse-diameter channel, while small-diameter ramie falls into the fine-diameter channel through the gap between the rollers, and finally enters the feeding inlet 2 respectively, realizing the grading and rolling according to diameter.

[0086] like Figure 10 , Figure 11 As shown, the peeling assembly 6 includes a primary peeling wheel 601, a secondary driven peeling wheel 602, a secondary active peeling wheel 603, a tertiary driven peeling wheel 604, and a hemp-spinning wheel 605, which are sequentially arranged on the frame 1 and located at the rear end of the roller pressing assembly 3. The secondary driven peeling wheel 602 and the secondary active peeling wheel 603 are engaged, and the secondary active peeling wheel 603 and the tertiary driven peeling wheel 604 are engaged.

[0087] Preferably, the secondary driven peeling wheel 602, the secondary active peeling wheel 603, and the tertiary driven peeling wheel 604 have similar structures, including a rotating shaft 7, a plurality of peeling wheel discs 8, a plurality of peeling blades 9, and a plurality of peeling pads 10. The peeling wheel discs 8 are fixed to the rotating shaft 7 and are evenly arranged on the rotating shaft 7. The plurality of peeling blades 9 are detachably mounted on the peeling wheel discs 8 by locking members, and the peeling pads 10 are detachably mounted on the peeling blades 9 by locking members.

[0088] The peeling blade 9 and the peeling pad 10 are both detachable and installable through locking parts, which facilitates maintenance and replacement, reduces maintenance costs, and also has good versatility and interchangeability.

[0089] like Figure 10As shown, in some preferred embodiments, to ensure that the ramie after rolling smoothly enters the stripping assembly 6, a first receiving plate 11 is provided below the first-stage stripping wheel 601. This plate is used to receive the ramie plants after rolling and guide them into the space between the second-stage driven stripping wheel 602 and the second-stage active stripping wheel 603, preventing the ramie plants after rolling from becoming loose or stuck. The first receiving plate 11 is slidably mounted on the frame 1, and an elastic reset assembly 12 is provided between the first receiving plate 11 and the frame 1. The elastic reset assembly 12 allows the first receiving plate 11 to automatically adjust according to the thickness or quantity of the ramie plants, avoiding blockage caused by being fixed in place. Furthermore, the first receiving plate 11 is slidably connected to the frame 1 and forms an elastic buffer through the elastic reset assembly 12, reducing the impact of the ramie plants falling after high-speed stripping and preventing fiber damage. A second receiving plate 13 is provided below the meshing position of the secondary active stripping wheel 603 and the tertiary driven stripping wheel 604 to receive the stripped ramie plants. The second receiving plate 13 can receive the material that has been initially stripped, prevent it from falling or getting tangled, and ensure that it can smoothly enter the subsequent stripping stage.

[0090] Example 4

[0091] Based on Embodiment 1, Embodiment 2, or Embodiment 3, the present invention also provides a method for using a hemp stripping machine, the specific steps of which are as follows:

[0092] S1 (Equipment Inspection): Check whether the frame 1, feed inlet 2, roller pressing assembly 3, peeling assembly 6 and diameter screening device 4 are installed securely, and confirm that the drive device and lubrication system are in normal working condition; move the frame 1 to the working position, lower the front support frame, and fix the hemp peeling machine stably.

[0093] S2 (Diameter Screening Adjustment): Based on the diameter range of ramie plants, adjust the distance between the rollers on the first roller conveyor belt 401 and the second roller conveyor belt 402 to make it greater than the preset medium diameter value, thereby realizing the diversion of ramie plants of different diameters.

[0094] S3 (Roller gap adjustment): Insert a hex wrench into the internal hexagonal groove at the end of the worm 3033, rotate the worm 3033 to drive the worm wheel 3032 and the lead screw 3031 to rotate, drive the sliding sleeve 3034 to move axially, and drive the roller pressing protrusion 302 to extend and retract radially through the connecting rod assembly 3035, thereby adjusting the gap between the two roller pressing assemblies 3 to accommodate ramie plants of different diameters.

[0095] S4 (Plant Feeding and Diversion): Ramie plants are fed into the feeding inlet 4031. Under the rotation of the feeding wheel 4032, the ramie plants enter the diversion channel 4033 in sequence and are diverted according to their diameter by the second roller conveyor belt 402. The smaller diameter ramie plants fall into the narrow diameter conveyor channel through the gap between the rollers, while the larger diameter ramie plants are conveyed to the coarse diameter conveyor channel by the rollers.

[0096] S5 (Rolling and Peeling): After screening, the ramie plants enter the roller pressing assembly 3 and are rolled under the action of two sets of interlocking rollers. After rolling, the ramie plants fall onto the first receiving plate 11 and are guided between the secondary driven peeling wheel 602 and the secondary active peeling wheel 603. They are then peeled step by step by each level of peeling wheel and finally thrown out by the ramie throwing wheel 605, thus separating the ramie fibers from the ramie stalks.

[0097] S6 (fiber collection): The ramie plants, after being stripped, fall onto the second receiving plate 13, and the ramie fibers are thrown off the second receiving plate 13 by the ramie spinning wheel 605, and the ramie fibers are suspended on the ramie stalk 5.

[0098] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0099] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A hemp peeling machine, comprising a frame (1), and a feeding inlet (2), a roller pressing assembly (3), a peeling assembly (6), and hemp stalks (5) disposed on the frame (1), wherein the feeding inlet (2) is disposed on one side of the frame (1), and the hemp stalks (5) are disposed on the opposite side of the feeding inlet (2), characterized in that: The roller pressing assembly (3) is located at the rear end of the feed inlet (2) and at least two sets are provided. The roller pressing assembly (3) includes: two roller pressing shafts (301) arranged symmetrically, a plurality of roller pressing protrusions (302) slidably installed in the roller pressing shafts (301), and a drive assembly (303) for driving the roller pressing protrusions (302) to extend and retract radially. The peeling component (6) is mounted on the frame (1) and located at the rear end of the roller pressing component (3) for peeling the ramie plants after roller pressing. The roller pressing assembly (3) and the peeling assembly (6) are driven to rotate by a driving device; The ramie stripping machine also includes a diameter screening device (4), which is located at the front end of the feeding inlet (2) and is used to screen the ramie plants entering the machine by diameter.

2. The hemp stripping machine according to claim 1, characterized in that: The drive assembly (303) includes a lead screw (3031), a worm gear (3032), a worm (3033), a sliding sleeve (3034), and a connecting rod assembly (3035). The lead screw (3031) is axially arranged along the roller shaft (301) and rotatably mounted inside the roller shaft (301). One end of the lead screw (3031) is fixedly connected to the worm gear (3032). The worm (3033) meshes with the worm gear (3032) for transmission. Both the worm gear (3032) and the worm (3033) are mounted inside the roller shaft (301), and one end of the worm (3033) extends out of the outer wall of the roller shaft (301) and has an internal hexagonal groove at the extended end. The sliding sleeve (3034) is threadedly connected to the lead screw (3031).

3. The hemp stripping machine according to claim 2, characterized in that: The connecting rod assembly (3035) includes a plurality of connecting rods, which are arranged around the sliding sleeve (3034), and one end of the connecting rod is hinged to the roller pressing protrusion (302) and the other end is hinged to the sliding sleeve (3034); The lead screw (3031) includes a left threaded rod and a right threaded rod, the thread directions of the left threaded rod and the right threaded rod are opposite; The sliding sleeve (3034) and the connecting rod assembly (3035) are respectively arranged in two symmetrical groups inside the roller shaft (301), and the roller protrusion (302) is driven to extend and retract radially by the left threaded rod and the right threaded rod.

4. The hemp stripping machine according to claim 1, characterized in that: The roller-pressed protrusion (302) includes: a base pressing strip (3021) and an arc-shaped protrusion (3022); one end of the base pressing strip (3021) is hinged to the connecting rod assembly (3035), and the other end is provided with a dovetail groove; one end of the arc-shaped protrusion (3022) is provided with a dovetail strip, and the arc-shaped protrusion (3022) is detachably installed in the dovetail groove of the base pressing strip (3021) through the dovetail strip and is fixed by a locking member.

5. The hemp stripping machine according to claim 4, characterized in that: The diameter screening device (4) includes: The first roller conveyor belt (401) is located at the front end of the feed inlet (2) and is divided into a fine diameter conveying channel and a coarse diameter conveying channel by a partition plate; The second roller conveyor belt (402) is positioned above the first roller conveyor belt (401), and the rollers on the second roller conveyor belt (402) are arranged perpendicularly to the rollers on the first roller conveyor belt (401) in space, for screening the diameter of ramie plants. The material distribution device (403) is installed on the second roller conveyor belt (402) and is used to distribute ramie plants.

6. The hemp stripping machine according to claim 5, characterized in that: The material dispensing device (403) includes: The feed inlet (4031) is funnel-shaped and is used to guide the plant stems into the feed. The material distribution wheel (4032) is located below the material distribution feed inlet (4031), and the circumference of the material distribution wheel (4032) is provided with a plurality of radially extending grooves; The diversion channel (4033) is located below the feeding port (4031), and the feeding wheel (4032) is rotatably installed in the diversion channel (4033) to divert and discharge plants of different diameters. A drive motor (4034) is disposed on the side wall of the diversion channel (4033) and connected to the material distribution wheel (4032) for driving the material distribution wheel (4032) to rotate; A guide plate (4035) is disposed below the second roller conveyor belt (402) to guide plants that have not passed through the second roller conveyor belt (402) into the first roller conveyor belt (401).

7. The hemp stripping machine according to claim 1, characterized in that: The peeling assembly (6) includes a primary peeling wheel (601), a secondary driven peeling wheel (602), a secondary active peeling wheel (603), a tertiary driven peeling wheel (604), and a hemp-spinning wheel (605), which are arranged sequentially on the frame (1) and located at the rear end of the roller pressing assembly (3). The secondary driven peeling wheel (602) and the secondary active peeling wheel (603) are engaged, and the secondary active peeling wheel (603) is engaged with the tertiary driven peeling wheel (604).

8. The hemp stripping machine according to claim 7, characterized in that: The secondary driven peeling wheel (602), the secondary active peeling wheel (603), and the tertiary driven peeling wheel (604) have similar structures, including a rotating shaft (7), several peeling discs (8), several peeling blades (9), and several peeling pads (10). The peeling discs (8) are fixed on the rotating shaft (7) and are evenly arranged on the rotating shaft (7). Several peeling blades (9) are detachable from the peeling discs (8) by locking members. The peeling pads (10) are detachable from the peeling blades (9) by locking members.

9. The hemp stripping machine according to claim 8, characterized in that: A first receiving plate (11) is provided below the first-stage stripping wheel (601) to receive the ramie plants after rolling and guide them between the second-stage driven stripping wheel (602) and the second-stage active stripping wheel (603); the first receiving plate (11) is slidably mounted on the frame (1), and an elastic reset component (12) is provided between the first receiving plate (11) and the frame (1); a second receiving plate (13) is provided below the meshing position of the second-stage active stripping wheel (603) and the third-stage driven stripping wheel (604) to receive the stripped ramie plants.

10. The hemp stripping machine according to claim 1, characterized in that: The feeding inlet (2) is rotatably mounted on the frame (1), and a locking component (14) is provided between the feeding inlet (2) and the frame (1) for fixing the feeding inlet (2) on the frame (1).

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