Hemp peeling machine

Abstract

The invention discloses a hemp peeling machine, which relates to the technical field of fiber processing, and comprises a rack, a peeling assembly, a driving assembly, a transmission assembly, a regulation and control assembly and a control system, the peeling assembly comprises a sliding part, a first peeling roller, a second peeling roller and a third peeling roller; the driving assembly drives the second peeling roller and the third peeling roller to rotate at a constant speed in the same direction, and the first peeling roller is driven by the transmission assembly to rotate at a constant speed in the reverse direction relative to the second peeling roller and the third peeling roller. The control system can detect physical characteristics of different ramie and adjust the power of the driving assembly according to the physical characteristics, the higher the power of the driving assembly is, the higher the rotating speeds of the first peeling roller, the second peeling roller and the third peeling roller are, and the regulation and control assembly drives the sliding part to slide on the rack. The axial distance between the first peeling roller and the second peeling roller is smaller than that between the first peeling roller and the third peeling roller; therefore, different types of ramie can be processed by using the peeling rollers with different shaft distances and different rotating speeds, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of fiber processing technology, and in particular to a hemp stripping machine. Background Technology

[0002] Ramie mainly consists of the outer sheath, bast, and xylem from the outside in. During processing, ramie is fed between two rotating peeling rollers. The surface of the peeling rollers is equipped with striking plates, which are arranged alternately on the two peeling rollers. The striking plates break and scrape away the xylem and sheath of the ramie, while the bast, due to its toughness, is only flattened and stretched without being cut. Afterward, the bast is pulled out in the opposite direction by the operator.

[0003] Different types of ramie have different physical properties such as moisture content, weight, and diameter. Existing ramie peeling machines cannot automatically adjust the spacing and speed of the peeling rollers to process different types of ramie, requiring frequent manual adjustments and resulting in low processing efficiency.

[0004] The information disclosed in the background section of this application is intended only to enhance the understanding of the general background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The main objective of this invention is to provide a ramie stripping machine that solves the technical problem that existing ramie stripping machines cannot automatically adjust the stripping roller spacing and speed according to different types of ramie.

[0006] To achieve the above objectives, a hemp stripping machine is proposed, comprising:

[0007] frame;

[0008] The peeling assembly includes a sliding member, a first peeling roller, and a second and a third peeling roller, both rotatably connected to the frame; the first peeling roller is rotatably connected to the sliding member, which is slidably mounted on the frame.

[0009] A drive assembly is used to drive the second peeling roller and the third peeling roller to rotate in the same direction at the same speed;

[0010] A transmission assembly is used to transmit the power of the drive assembly to the first peeling roller, wherein the first peeling roller rotates at the same speed in the opposite direction to the second peeling roller or the third peeling roller;

[0011] A control component is used to adjust the axial distance between the first peeling roller and the second and third peeling rollers according to the power of the drive component.

[0012] A control system is used to detect the physical properties of ramie and adjust the power of the drive assembly according to the physical properties of ramie, including the weight of ramie.

[0013] The drive assembly drives the second and third peeling rollers to rotate in the same direction at the same speed, while the first peeling roller rotates in the opposite direction at the same speed relative to the second and third peeling rollers under the drive of the transmission assembly. The operator holds the ramie and inserts the end of the ramie away from the operator between the first and second peeling rollers. The ramie is first struck and scraped between the first and second peeling rollers, breaking and scraping away the husk and wood. The bast is then pulled between the first and third peeling rollers by the third peeling roller for a second strike and scrape, breaking down any remaining husk and wood on the bast. Subsequently, the operator holds the ramie and pulls the bast out in the opposite direction. When processing different types of ramie, the control system can detect at least the physical properties of the ramie, such as its weight, and adjust the power of the drive components accordingly. The greater the power of the drive components, the higher the rotational speed of the first, second, and third peeling rollers, and the smaller the axial distance between the first peeling roller and the second and third peeling rollers, as adjusted by the control components. Conversely, the lower the power of the drive components, the lower the rotational speed of the first, second, and third peeling rollers, and the larger the axial distance between the first peeling roller and the second and third peeling rollers, as adjusted by the control components. This allows for the processing of different types of ramie using peeling rollers with different axial distances and rotational speeds.

[0014] Preferably, the drive assembly includes a drive unit, a drive gear, and two driven gears, with the second peeling roller and the third peeling roller both connected to the driven gears; the drive gear is rotatably connected to the frame and simultaneously meshes with the two driven gears; the transmission assembly is used to transmit the power of the drive gear to the first peeling roller; the drive unit is mounted on the frame and is used to drive the drive gear to rotate.

[0015] The driving gear simultaneously drives two driven gears to rotate. The two driven gears are connected to the second peeling roller and the third peeling roller respectively, so that the second peeling roller and the third peeling roller rotate in the same direction and at the same speed. The drive component transmits the power of the driving gear to the first peeling roller, and makes it rotate in the opposite direction to the second and third peeling rollers. The gear transmission method is relatively precise and the structure is relatively simple.

[0016] Preferably, the transmission assembly includes a first synchronous pulley, a second synchronous pulley, a synchronous belt, and an elastic tensioning mechanism; the first synchronous pulley is coaxially connected to the drive gear; the second synchronous pulley is coaxially connected to the first peeling roller; the synchronous belt is used to transmit power from the first synchronous pulley to the second synchronous pulley; and the elastic tensioning mechanism is used to tension the synchronous belt in real time.

[0017] The first synchronous pulley, in conjunction with the synchronous belt and the second synchronous pulley, transmits the power of the drive gear to the first peeling roller. The first peeling roller rotates in opposite directions to the second and third peeling rollers. When the axial distance between the second and first synchronous pulleys changes, the elastic tensioning mechanism can tension the synchronous belt in real time. When the tension of the synchronous belt is small, the elastic tensioning mechanism can increase the tension of the synchronous belt so that the synchronous belt can transmit the power of the first synchronous pulley to the second synchronous pulley.

[0018] Preferably, the transmission ratio between the first and second synchronous pulleys is equal to the transmission ratio between the driving gear and the driven gear, so that the rotational speeds of the first peeling roller, the second peeling roller, and the third peeling roller are the same.

[0019] Preferably, the elastic tensioning mechanism includes a mounting cylinder, a tensioning spring, a mounting base, and a tensioning wheel; the tensioning wheel is rotatably connected to the mounting base, and the tensioning wheel is used to tension the synchronous belt; one end of the mounting base away from the tensioning wheel is located inside the mounting cylinder; the mounting cylinder is disposed on the frame; and both ends of the tensioning spring are respectively connected to the mounting base and the frame.

[0020] The tension spring is always in a compressed state. The tension spring drives the mounting base to slide, causing the tension wheel to abut against the synchronous belt. Before the axial distance between the first peeling roller and the second or third peeling roller is adjusted, the tension spring applies a certain initial tension to the synchronous belt through the tension wheel, and the tension spring is in a balanced state. If the axial distance between the first peeling roller and the second or third peeling roller decreases, the synchronous belt becomes looser. At this time, the tension spring extends and drives the tension wheel to abut against the synchronous belt further, increasing the tension of the synchronous belt. If the axial distance between the first peeling roller and the second or third peeling roller increases, the synchronous belt compresses and deforms the tension spring through the tension wheel and the mounting base. During the movement of the first peeling roller, the synchronous belt is always in close contact with the first and second synchronous pulleys.

[0021] Preferably, the control assembly includes a centrifugal diameter changing mechanism, a lever mechanism, an elastic reset mechanism, a first hydraulic cylinder, a second hydraulic cylinder, and an oil pipeline;

[0022] The centrifugal diameter changing mechanism is coaxially connected to the second peeling roller or the third peeling roller. The centrifugal diameter changing mechanism can undergo radial deformation according to its own rotation speed. The centrifugal diameter changing mechanism is in active contact with the lever mechanism and exerts radial pressure on the lever mechanism.

[0023] The lever mechanism is used to amplify the force exerted by the centrifugal reducing mechanism on the lever mechanism and transmit it to the piston rod of the first hydraulic cylinder;

[0024] The elastic reset mechanism is used to ensure that the lever mechanism remains in contact with the centrifugal diameter changing mechanism during the deformation process of the centrifugal diameter changing mechanism.

[0025] The internal oil chamber of the first hydraulic cylinder is connected to the internal oil chamber of the second hydraulic cylinder through the oil pipeline. When the piston rod of the first hydraulic cylinder extends / retracts, the piston rod of the second hydraulic cylinder retracts / extends. The piston rod of the second hydraulic cylinder can drive the sliding member to move along the frame.

[0026] The greater the rotational speed of the second peeling roller, the greater the radial deformation of the centrifugal diameter changing mechanism. The centrifugal diameter changing mechanism continuously squeezes the lever mechanism, which then amplifies the squeezing force of the centrifugal diameter changing mechanism and transmits it to the first hydraulic cylinder. The piston rod of the first hydraulic cylinder is compressed, and the hydraulic oil in the first hydraulic cylinder is transmitted to the second hydraulic cylinder through the oil pipeline, causing the piston rod of the second hydraulic cylinder to extend and push the sliding part to move towards the second or third peeling roller. The elastic reset mechanism ensures that the lever mechanism can always be in contact with the centrifugal diameter changing mechanism, ensuring that even during the deformation process of the centrifugal diameter changing mechanism, the lever mechanism will not disengage due to external force or vibration.

[0027] Preferably, the centrifugal diameter changing mechanism includes a turntable, a tension spring, and a connecting block; the turntable is coaxially connected to the second peeling roller or the third peeling roller, and limiting blocks extending radially along the turntable are respectively provided on both radial sides of the turntable; there are two connecting blocks, each of which is slidably engaged with one of the limiting blocks, and the radial outer side wall of the connecting block is in movable contact with the lever mechanism; there is at least one tension spring, and both ends of the tension spring are respectively connected to one of the connecting blocks.

[0028] When the rotational speed of the turntable is less than or equal to the threshold, the connecting block does not move radially under the action of the tension spring. At this time, the lever mechanism, the first hydraulic cylinder and the second hydraulic cylinder do not work, the sliding part does not move, and the axial distance between the first peeling roller and the second or third peeling roller is the largest. When the rotational speed of the turntable is greater than the threshold, the centrifugal force of the connecting block increases, causing the connecting block to move radially along the limit block. The tension spring is stretched, and the force of the connecting block on the lever mechanism increases. The lever mechanism then drives the piston rod of the first hydraulic cylinder to compress. The first hydraulic cylinder then drives the piston rod of the second hydraulic cylinder to extend through the oil pipeline, thereby reducing the axial distance between the first peeling roller and the second or third peeling roller.

[0029] Preferably, the lever mechanism includes a lever body and a connecting rod; the elastic reset mechanism includes a torsion spring; and the end face of the connecting block for contacting the lever body is an arc surface.

[0030] The lever body is rotatably connected to the frame at point A. The torsion spring is sleeved on the pivot of the lever body, and the two ends of the torsion spring are respectively connected to the lever body and the frame. One end of the lever body is in movable contact with the connecting block at point B, and the other end of the lever body is rotatably connected to the connecting rod at point C. The length of the line AB is greater than the length of the line AC. The end of the connecting rod away from the lever body is rotatably connected to the piston rod of the first hydraulic cylinder.

[0031] The torsion spring causes the lever body to always abut against the outer wall of the connecting block; the length of line AB is greater than the length of line AC, which makes the lever arm of the connecting block on the lever body larger, so that the connecting block only needs a small force to compress the torsion spring and drive the piston rod of the first hydraulic cylinder to move.

[0032] Preferably, the control system includes a weighing platform, pressure sensors, a support platform, a buffer pad, and a processor; the gap between the first peeling roller and the second peeling roller forms a feeding channel; the weighing platform is mounted on the frame and located in front of the feeding channel; the weighing platform, the support platform, and the buffer pad are arranged sequentially from top to bottom; a plurality of pressure sensors are provided between the weighing platform and the support platform; the pressure sensors and the drive assembly are both electrically connected to the processor.

[0033] The buffer pad prevents the vibration of the frame from being transmitted to the weighing platform, thus avoiding inaccurate detection by the pressure sensor. The weighing platform is used to support the ramie, and the pressure sensor is used to detect the weight of the ramie to classify it. The pressure sensor transmits the weight signal of the ramie to the processor, which then controls the drive components to operate at different power levels according to the different weight signals.

[0034] Preferably, the hemp peeling machine further includes a protective shell; the protective shell is disposed on the frame and sleeved on the outside of the peeling assembly, the transmission assembly and the control assembly, and the protective shell has a feed inlet communicating with the feed channel.

[0035] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0036] 1. The ramie peeling machine of the present invention can detect the physical properties of ramie and adjust the shaft spacing between the first peeling roller and the second or third peeling roller according to the different physical properties of ramie, and adjust the rotation speed of the first peeling roller, the second peeling roller and the third peeling roller to process different types of ramie and improve processing efficiency.

[0037] 2. The channel between the first peeling roller and the second peeling roller of the present invention is the first processing channel, and the channel between the first peeling roller and the third peeling roller is the second processing channel. The two processing steps make the ramie peeling more thorough and the processing efficiency higher. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 This is a front view of the hemp stripping machine according to an embodiment of the present invention;

[0040] Figure 2 This is a rear view of the hemp stripping machine according to an embodiment of the present invention;

[0041] Figure 3 This is a top view of the hemp stripping machine according to an embodiment of the present invention;

[0042] Figure 4 This is a partial three-dimensional view of the hemp stripping machine according to an embodiment of the present invention;

[0043] Figure 5 This is another front view of the hemp stripping machine according to an embodiment of the present invention.

[0044] Icons: 10, Frame; 110, Dovetail groove; 120, Stop block; 210, Sliding component; 220, First peeling roller; 230, Second peeling roller; 240, Third peeling roller; 250, Beating plate; 3110, Drive motor; 3120, First transmission wheel; 3130, Second transmission wheel; 3140, Conveyor belt; 320, Drive gear; 330, Driven gear; 410, First synchronous pulley; 420, Second synchronous pulley; 430, Synchronous belt; 4410, Mounting cylinder; 442 0. Tension spring; 4430. Mounting base; 4440. Tensioning wheel; 5110. Turntable; 5111. Limit block; 5120. Tension spring; 5130. Connecting block; 5210. Lever body; 5220. Connecting rod; 540. First hydraulic cylinder; 550. Second hydraulic cylinder; 5610. First pipeline; 5620. Second pipeline; 610. Weighing platform; 620. Pressure sensor; 630. Support platform; 640. Buffer pad; 710. Protective shell; 711. Feed inlet. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0046] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] Example 1:

[0049] The following is combined with Figures 1-5 This describes a hemp stripping machine according to an embodiment of the present invention.

[0050] This invention designs a ramie peeling machine, comprising: a frame 10; a peeling assembly including a sliding member 210, a first peeling roller 220, and a second peeling roller 230 and a third peeling roller 240, both rotatably connected to the frame 10; the first peeling roller 220 is rotatably connected to the sliding member 210, and the sliding member 210 is slidably disposed on the frame 10; a drive assembly for driving the second peeling roller 230 and the third peeling roller 240 to rotate in the same direction at the same speed; a transmission assembly for transmitting the power of the drive assembly to the first peeling roller 220, wherein the first peeling roller 220 rotates in the opposite direction at the same speed to the second peeling roller 230 or the third peeling roller 240; a control assembly for adjusting the axial distance between the first peeling roller 220 and the second peeling roller 230 and the third peeling roller 240 according to the power of the drive assembly; and a control system for detecting the physical properties of ramie and adjusting the power of the drive assembly according to the physical properties of ramie, including the weight of ramie.

[0051] The drive assembly drives the second peeling roller 230 and the third peeling roller 240 to rotate in the same direction at the same speed. The first peeling roller 220, driven by the transmission assembly, rotates in the opposite direction at the same speed relative to the second and third peeling rollers 230 and 240. The operator holds the ramie and inserts the end of the ramie away from the operator's body between the first and second peeling rollers 220 and 230. The ramie is first struck and scraped between the first and second peeling rollers 220 and 230, breaking and scraping away the husk and wood. The bast is then pulled by the third peeling roller 240 between the first and third peeling rollers 220 and 240 for a second strike and scraping, breaking down any remaining husk and wood on the bast. Subsequently, the operator holds the ramie and pulls the bast out in the opposite direction. When processing different types of ramie, the control system can detect at least the physical properties of the ramie, such as its weight, and adjust the power of the drive components accordingly. The greater the power of the drive components, the higher the rotational speed of the first peeling roller 220, the second peeling roller 230, and the third peeling roller 240, and the smaller the axial distance between the first peeling roller 220 and the second peeling roller 230 and the third peeling roller 240, as adjusted by the control components. Conversely, the lower the power of the drive components, the lower the rotational speed of the first peeling roller 220, the second peeling roller 230, and the third peeling roller 240, and the larger the axial distance between the first peeling roller 220 and the second peeling roller 230 and the third peeling roller 240, as adjusted by the control components. This enables the processing of different types of ramie using peeling rollers with different axial distances and rotational speeds.

[0052] The first peeling roller 220, the second peeling roller 230, and the third peeling roller 240 are all circumferentially provided with multiple striking plates 250. The striking plates 250 of the first peeling roller 220, the second peeling roller 230, and the third peeling roller 240 are arranged alternately. The interiors of the first peeling roller 220, the second peeling roller 230, and the third peeling roller 240 are hollow so that after the ramie is struck, the xylem and the ramie shell can fall out from the gaps between the striking plates 250.

[0053] The first peeling roller 220, the second peeling roller 230, and the third peeling roller 240 rotate at the same speed, so that the beaters 250 on the first peeling roller 220, the second peeling roller 230, and the third peeling roller 240 are always in an alternating state, avoiding collisions between the beaters 250 of the first peeling roller 220, the second peeling roller 230, and the third peeling roller 240 due to different speeds.

[0054] The second peeling roller 230 and the third peeling roller 240 rotate in the same direction. If the bast part enters the gap between the second peeling roller 230 and the third peeling roller 240, the bast part will be scraped out by the third peeling roller 240 and enter between the first peeling roller 220 and the third peeling roller 240.

[0055] The drive assembly includes a drive unit, a drive gear 320, and two driven gears 330. The second peeling roller 230 and the third peeling roller 240 are both connected to the driven gears 330. The drive gear 320 is rotatably connected to the frame 10 and meshes with the two driven gears 330 simultaneously. The transmission assembly is used to transmit the power of the drive gear 320 to the first peeling roller 220. The drive unit is mounted on the frame 10 and is used to drive the drive gear 320 to rotate.

[0056] The driving gear 320 simultaneously drives two driven gears 330 to rotate. The two driven gears 330 are respectively connected to the second peeling roller 230 and the third peeling roller 240, so that the second peeling roller 230 and the third peeling roller 240 rotate in the same direction and at the same speed, avoiding collision between the striking plates 250 of the second peeling roller 230 and the third peeling roller 240. The drive assembly transmits the power of the driving gear 320 to the first peeling roller 220, and makes it rotate in the opposite direction to the second and third peeling rollers. The gear transmission method is relatively precise and the structure is relatively simple.

[0057] In this embodiment, the axial distance d1 between the first peeling roller 220 and the second peeling roller 230 and the axial distance d2 between the first peeling roller 220 and the third peeling roller 240 are equal, so that when the first peeling roller 220 approaches the second peeling roller 230, there will be no collision between the first peeling roller 220 and the third peeling roller 240 or the distance will be too far to scrape the ramie.

[0058] The line connecting the shaft ends of the second peeling roller 230 and the third peeling roller 240 can be in a vertical state. At this time, the sliding direction of the first peeling roller 220 on the frame 10 with the sliding member 210 is horizontal. The frame 10 supports the first peeling roller 220, so that when the control component moves the sliding member 210, it only needs to overcome the friction between the sliding member 210 and the frame 10, and is not affected by the gravity of the first peeling roller 220.

[0059] The contact surface between the sliding member 210 and the frame 10 is relatively smooth to reduce the friction between them.

[0060] In this embodiment, the frame 10 may be provided with a dovetail groove 110, the extension direction of the dovetail groove 110 being perpendicular to the axis of the first peeling roller 220. The sliding member 210 is provided with a locking block that cooperates with the dovetail groove 110. The dovetail groove 110 and the locking block can restrict the axial movement of the sliding member 210 of the first peeling roller 220 and its vertical movement relative to the frame 10.

[0061] One end of the dovetail groove 110 is sealed in the extending direction to restrict the movement of the locking block, and the other end is open so that the locking block can be inserted into the dovetail groove 110. The frame 10 is provided with a stop 120 to restrict the sliding member 210 from sliding out of the opening of the dovetail groove 110. The stop 120 can be bolted to the frame 10.

[0062] The drive unit includes a drive motor 3110, a first transmission wheel 3120, a second transmission wheel 3130, and a conveyor belt 3140. The drive motor 3110 is mounted on the frame 10 and is used to drive the first transmission wheel 3120 to rotate. The second transmission wheel 3130 is coaxially connected to the drive gear 320. The conveyor belt 3140 is used to transmit the power of the first transmission wheel 3120 to the second transmission wheel 3130.

[0063] The first drive wheel 3120 and the second drive wheel 3130 can be pulleys, the conveyor belt 3140 can be a belt, the cross section of the conveyor belt 3140 can be V-shaped, the first drive wheel 3120 and the second drive wheel 3130 are provided with grooves that cooperate with the conveyor belt 3140, and the conveyor belt 3140 drives the drive wheel to rotate through friction.

[0064] The diameter of the first transmission wheel 3120 can be smaller than the diameter of the second transmission wheel 3130, so that the transmission ratio of the first transmission wheel 3120 and the second transmission wheel 3130 is greater than 1, thereby achieving the effect of deceleration and torque increase.

[0065] The transmission assembly includes a first synchronous pulley 410, a second synchronous pulley 420, a synchronous belt 430, and an elastic tensioning mechanism; the first synchronous pulley 410 is coaxially connected to the drive gear 320; the second synchronous pulley 420 is coaxially connected to the first peeling roller 220; the synchronous belt 430 is used to transmit power from the first synchronous pulley 410 to the second synchronous pulley 420; and the elastic tensioning mechanism is used to tension the synchronous belt 430 in real time.

[0066] In this embodiment, both the first synchronous pulley 410 and the second synchronous pulley 420 are driven by friction with the synchronous belt 430, and the surface friction coefficients of the first synchronous pulley 410, the second synchronous pulley 420 and the synchronous belt 430 are relatively large.

[0067] The first synchronous pulley 410, in conjunction with the synchronous belt 430 and the second synchronous pulley 420, transmits the power of the drive gear 320 to the first peeling roller 220. The first peeling roller 220 rotates in opposite directions to the second peeling roller 230 and the third peeling roller 240. When the sliding member 210 drives the first peeling roller 220 to slide on the frame 10, the axial distance between the second synchronous pulley 420 and the first synchronous pulley 410 changes. The elastic tensioning mechanism has the function of elastic deformation. The elastic tensioning mechanism can automatically deform and tension the synchronous belt 430. When the tension of the synchronous belt 430 is small, the elastic tensioning mechanism can increase the tension of the synchronous belt 430 so that the synchronous belt 430 can transmit the power of the first synchronous pulley 410 to the second synchronous pulley 420.

[0068] In this embodiment, the transmission ratio i1 between the first synchronous pulley 410 and the second synchronous pulley 420 and the transmission ratio i2 between the driving gear 320 and the driven gear 330 are equal, so that the rotational speeds of the first peeling roller 220, the second peeling roller 230 and the third peeling roller 240 are the same.

[0069] The elastic tensioning mechanism includes a mounting cylinder 4410, a tension spring 4420, a mounting base 4430, and a tension wheel 4440. The tension wheel 4440 is rotatably connected to the mounting base 4430 and is used to tension the synchronous belt 430. One end of the mounting base 4430 away from the tension wheel 4440 is located inside the mounting cylinder 4410. The mounting cylinder 4410 is mounted on the frame 10. Both ends of the tension spring 4420 are connected to the mounting base 4430 and the frame 10, respectively.

[0070] The synchronous belt 430 can be wrapped around the outside of the elastic tensioning mechanism. The tensioning pulley 4440 contacts the synchronous belt 430 from the inside to the outside, and the surface of the tensioning pulley 4440 is relatively smooth. The tension spring 4420 is in a compressed state. The tension spring 4420 drives the mounting base 4430 and the tensioning pulley 4440 to move from the inside of the synchronous belt 430 to the outside of the synchronous belt 430, thereby achieving the tensioning effect on the synchronous belt 430.

[0071] When the axial distance between the first peeling roller 220 and the second peeling roller 230 or the third peeling roller 240 decreases, the synchronous belt 430 becomes loose. At this time, the tension spring 4420 extends and drives the tension wheel 4440 to move from the inside of the synchronous belt 430 to the outside of the synchronous belt 430, thereby increasing the tension of the synchronous belt 430.

[0072] When the axial distance between the first peeling roller 220 and the second peeling roller 230 or the third peeling roller 240 increases, the synchronous belt 430 compresses the tension spring 4420 through the tensioning wheel 4440 and the mounting base 4430, causing it to be further compressed and deformed. During the movement of the first peeling roller 220, the synchronous belt 430 is always in close contact with the first synchronous pulley 410 and the second synchronous pulley 420.

[0073] The control components include a centrifugal diameter changing mechanism, a lever mechanism, an elastic reset mechanism, a first hydraulic cylinder 540, a second hydraulic cylinder 550, and oil pipelines;

[0074] The centrifugal diameter changing mechanism is coaxially connected to the second peeling roller 230 or the third peeling roller 240. The centrifugal diameter changing mechanism can undergo radial deformation according to its own rotation speed. The centrifugal diameter changing mechanism is in active contact with the lever mechanism and exerts radial pressure on the lever mechanism.

[0075] The lever mechanism is used to amplify the force exerted by the centrifugal variable diameter mechanism on the lever mechanism and transmit it to the piston rod of the first hydraulic cylinder 540;

[0076] The elastic reset mechanism is used to keep the lever mechanism in constant contact with the centrifugal diameter changing mechanism during the deformation process of the centrifugal diameter changing mechanism.

[0077] The internal oil chamber of the first hydraulic cylinder 540 is connected to the internal oil chamber of the second hydraulic cylinder 550 through an oil pipeline. When the piston rod of the first hydraulic cylinder 540 extends / retracts, the piston rod of the second hydraulic cylinder 550 retracts / extends. The piston rod of the second hydraulic cylinder 550 can drive the sliding component 210 to move along the frame 10.

[0078] In this embodiment, the centrifugal diameter changing mechanism can be set on the second peeling roller 230. The greater the rotation speed of the second peeling roller 230, the greater the radial deformation of the centrifugal diameter changing mechanism. The centrifugal diameter changing mechanism continuously squeezes the lever mechanism, and the lever mechanism amplifies the squeezing force of the centrifugal diameter changing mechanism and transmits it to the first hydraulic cylinder 540. The piston rod of the first hydraulic cylinder 540 is compressed, and the hydraulic oil in the first hydraulic cylinder 540 enters the second hydraulic cylinder 550 through the oil pipeline, so that the piston rod of the second hydraulic cylinder 550 extends and pushes the sliding member 210 to move toward the second peeling roller 230 or the third peeling roller 240.

[0079] During the radial deformation of the centrifugal reducing mechanism, the elastic reset mechanism ensures that the lever mechanism remains in contact with the centrifugal reducing mechanism, thus preventing the lever mechanism from disengaging due to external forces or vibrations even during the deformation process of the centrifugal reducing mechanism.

[0080] The hydraulic cylinder is divided into an inlet chamber and an outlet chamber by a movable partition. The inlet chamber is closer to the piston rod than the outlet chamber. The movable partition is connected to the piston rod of the hydraulic cylinder. When oil enters the inlet chamber and oil is discharged from the outlet chamber, the oil in the hydraulic cylinder can push the movable partition to move towards the outlet chamber, causing the piston rod to extend relative to the hydraulic cylinder.

[0081] In this embodiment, the oil pipeline includes a first pipeline 5610 and a second pipeline 5620. The two ends of the first pipeline 5610 are respectively connected to the oil outlet chamber of the first hydraulic cylinder 540 and the oil outlet chamber of the second hydraulic cylinder 550. The two ends of the second pipeline 5620 are respectively connected to the oil inlet chamber of the first hydraulic cylinder 540 and the oil inlet chamber of the second hydraulic cylinder 550. When the piston rod of the first hydraulic cylinder 540 is compressed by the lever mechanism, the volume of the oil inlet chamber of the first hydraulic cylinder 540 increases and the volume of the oil outlet chamber decreases. At this time, the oil in the oil outlet chamber of the first hydraulic cylinder 540 enters the oil outlet chamber of the second hydraulic cylinder 550 through the second pipeline 5620, and the oil in the oil inlet chamber of the second hydraulic cylinder 550 enters the oil inlet chamber of the first hydraulic cylinder 540 through the first pipeline 5610. This achieves the effect that when the piston rod of the first hydraulic cylinder 540 is shortened, the piston rod of the second hydraulic cylinder 550 is extended; conversely, when the piston rod of the first hydraulic cylinder 540 is extended, the piston rod of the second hydraulic cylinder 550 is shortened.

[0082] The centrifugal diameter changing mechanism includes a turntable 5110, a tension spring 5120, and a connecting block 5130. The turntable 5110 is coaxially connected to the second peeling roller 230 or the third peeling roller 240. Limiting blocks 5111 extending radially along the turntable 5110 are provided on both radial sides of the turntable 5110. There are two connecting blocks 5130, each of which is slidably engaged with one limiting block 5111. The radial outer side wall of the connecting block 5130 is in active contact with the lever mechanism. There is at least one tension spring 5120, and both ends of the tension spring 5120 are connected to one connecting block 5130.

[0083] The line connecting the two limiting blocks 5111 passes through the center of the turntable 5110, and the long side of the limiting block 5111 is parallel to the diameter of the turntable 5110; the connecting block 5130 can be in the shape of a fan ring, and the radial inner sidewall of the connecting block 5130 is provided with a limiting groove that cooperates with the limiting block 5111; there can be two tension springs 5120, which are located on both sides of the connecting block 5130 respectively, and the two ends of the tension springs 5120 are connected to one connecting block 5130 respectively.

[0084] When the rotational speed of turntable 5110 is less than or equal to the threshold, connecting block 5130 does not move radially under the action of tension spring 5120, and limiting block 5111 abuts against the bottom of limiting groove. At this time, lever mechanism, first hydraulic cylinder 540 and second hydraulic cylinder 550 do not work, sliding part 210 does not move, and the axial distance between first peeling roller 220 and second peeling roller 230 or third peeling roller 240 is at its maximum.

[0085] When the rotational speed of turntable 5110 exceeds the threshold, the centrifugal force of connecting block 5130 increases, causing connecting block 5130 to move radially along limit block 5111. Tension spring 5120 is stretched, and the force of connecting block 5130 acting on lever mechanism increases. Lever mechanism then drives piston rod of first hydraulic cylinder 540 to compress. First hydraulic cylinder 540 then drives piston rod of second hydraulic cylinder 550 to extend through oil pipeline, driving first peeling roller 220 to move toward second peeling roller 230 or third peeling roller 240.

[0086] The two connecting blocks 5130 are centrally symmetrical about the center of the turntable 5110, and the two tension springs 5120 are centrally symmetrical about the center of the turntable 5110. Therefore, the radial movement distance of the two connecting blocks 5130 is the same, so that the force exerted by the two connecting blocks 5130 on the lever mechanism is approximately equal.

[0087] The lever mechanism includes a lever body 5210 and a connecting rod 5220; the elastic reset mechanism includes a torsion spring; the end face of the connecting block 5130 that contacts the lever body 5210 is an arc surface;

[0088] The lever body 5210 is rotatably connected to the frame 10 at point A. A torsion spring is sleeved on the pivot of the lever body 5210 (not shown in the figure). The two ends of the torsion spring are connected to the lever body 5210 and the frame 10 respectively. One end of the lever body 5210 is in movable contact with the connecting block 5130 at point B. The other end of the lever body 5210 is rotatably connected to the connecting rod 5220 at point C. The length of the connecting line AB is greater than the length of the connecting line AC. The end of the connecting rod 5220 away from the lever body 5210 is rotatably connected to the piston rod of the first hydraulic cylinder 540.

[0089] The torsion spring is always in a torsional state, and the force exerted by the torsion spring on the lever body 5210 causes the lever to abut against the outer wall of the connecting block 5130. When the rotational speed of the turntable 5110 is less than or equal to the threshold, the connecting block 5130 does not move radially, and the lever body 5210 does not rotate relative to the frame 10 under the action of the torsion spring; when the rotational speed of the turntable 5110 is greater than the threshold, the connecting block 5130 moves radially outward of the turntable 5110, and the connecting block 5130 causes the lever body 5210 to rotate counterclockwise relative to the frame 10. The lever body 5210 then drives the piston rod of the first hydraulic cylinder 540 to compress through the connecting rod 5220, at which time the torsion spring is further compressed; when the rotational speed of the turntable 5110 gradually decreases from greater than the threshold to less than the threshold, the torsion spring gradually returns to its original state and drives the lever to rotate clockwise. The lever body 5210 drives the piston rod of the first hydraulic cylinder 540 to stretch through the connecting rod 5220.

[0090] It should be noted that the clockwise or counterclockwise rotation of the lever body 5210 here refers to... Figure 1 Clockwise or counterclockwise.

[0091] Since the length of line AB is greater than the length of line AC, the lever arm of connecting block 5130 on lever body 5210 is larger, so connecting block 5130 only needs a small force to compress torsion spring and drive piston rod of first hydraulic cylinder 540 to move.

[0092] It should be noted that the outer diameter of the connecting block 5130 is greater than the distance from any point on the tension spring 5120 to the center of the turntable 5110. Therefore, during the rotation of the turntable 5110, the lever body 5210 will not come into contact with the tension spring 5120.

[0093] The control system includes a weighing platform 610, a pressure sensor 620, a support platform 630, a buffer pad 640, and a processor; the gap between the first peeling roller 220 and the second peeling roller 230 forms a feeding channel; the weighing platform 610 is mounted on the frame 10 and located in front of the feeding channel; the weighing platform 610, the support platform 630, and the buffer pad 640 are arranged sequentially from top to bottom; multiple pressure sensors 620 are provided between the weighing platform 610 and the support platform 630; the pressure sensors 620 and the drive components are electrically connected to the processor.

[0094] For different types of ramie, their weight and moisture content are also different. For example, for the first crop ramie, the second crop ramie, and the third crop ramie, the fiber of the first crop ramie is thick and hard, with a moisture content greater than 55%, and it needs to be scraped and beaten at a low speed, such as 180 rpm, and requires a wider spacing between the peeling rollers; the fiber of the second crop ramie is fine and dense, with a moisture content of 45%-50%, and can be scraped and beaten at a higher speed, such as 220 rpm, and requires a narrower spacing between the peeling rollers; the fiber of the third crop ramie is fragile, with a moisture content less than 40%, and needs to be scraped and beaten at a low speed, such as 150 rpm, and requires a wider spacing between the peeling rollers and greater than that required for the first crop ramie. Generally, the higher the moisture content of ramie, the greater the weight of ramie. Therefore, the type of ramie can be indirectly judged by detecting the weight of ramie.

[0095] Let the weight of ramie be x. If x≥m1, it is the first crop ramie; if m2≤x<m1, it is the second crop ramie; if x<m2, it is the third crop ramie.

[0096] Before the ramie is put into the feeding channel, it is placed on the weighing platform 610. The pressure sensor 620 detects the weight x of the ramie, and the processor adjusts the power of the driving component according to the value range of x.

[0097] When the ramie peeling machine is working, under the influence of components such as the peeling rollers and the driving component, the frame 10 will vibrate. The buffer pad 640 can prevent the vibration of the frame 10 from being transmitted to the weighing platform 610, so as to avoid inaccurate detection by the pressure sensor 620.

[0098] The ramie peeling machine further includes a protective shell 710; the protective shell 710 is arranged on the frame 10 and sleeved outside the peeling component, the transmission component and the regulation component. The protective shell 710 is provided with a feeding port 711 communicating with the feeding channel.

[0099] The feeding port 711 can be arranged obliquely downward. The feeding port 711 has a certain guiding effect on the ramie, so that the ramie can be placed between the first peeling roller 220 and the second peeling roller 230. The protective shell 710 is mainly used to protect the peeling component, the transmission component and the regulation component, and prevent foreign impurities from entering.

[0100] An infrared sensor, an alarm and an electric control brake electrically connected to the processor can also be arranged on the protective shell 710. The infrared sensor is arranged on the protective shell 710 and close to the position of the feeding port 711. The infrared sensor is used to detect the temperature of an object; the electric control brake is used to brake the driving gear 320. When the operator's hand accidentally enters the feeding port 711, when the infrared sensor detects that the temperature of the hand is higher than that of the ramie, it sends an alarm signal to the processor. The processor controls the alarm and the electric control brake to work according to the alarm signal. The alarm gives an alarm, and the electric control brake brakes the driving gear 320 to prevent the operator's hand from being injured by the peeling roller. The alarm can be an audible and visual alarm.

[0101] Working principle of the ramie peeling machine:

[0102] The driving motor 3110 is drivingly connected to the first transmission wheel 3120. The second transmission wheel 3130 is coaxially connected to the driving gear 320. The driving motor 3110 drives the driving gear 320 to rotate through the first transmission wheel 3120, the second transmission wheel 3130 and the conveyor belt 3140. The shaft ends of the second peeling roller 230 and the third peeling roller 240 are connected with driven gears 330. The driving gear 320 drives the second peeling roller 230 and the third peeling roller 240 to rotate in the same direction and at the same speed through the two driven gears 330. The driving gear 320 is coaxially connected with a first synchronous wheel 410. The first peeling roller 220 is coaxially connected with a second synchronous wheel 420. The driving gear 320 further drives the first peeling roller 220 to rotate through the first synchronous wheel 410, the second synchronous wheel 420 and the synchronous belt 430. Since the transmission ratio i1 of the first synchronous wheel 410 and the second synchronous wheel 420 is equal to the transmission ratio i2 of the driving gear 320 and the driven gear 330, the rotational speeds of the first peeling roller 220, the second peeling roller 230 and the third peeling roller 240 are the same, and the rotational directions of the first peeling roller 220 and the second peeling roller 230 are opposite.

[0103] The operator holds the ramie and puts the end of the ramie away from the human body between the first peeling roller 220 and the second peeling roller 230. The ramie is subjected to the first knocking and scraping between the first peeling roller 220 and the second peeling roller 230. The ramie shell and xylem of the ramie are knocked and scraped away, while the phloem is pulled by the third peeling roller 240 to the space between the first peeling roller 220 and the third peeling roller 240 for the second knocking and scraping, so that the ramie shell and xylem remaining on the phloem are broken. Subsequently, the operator holds the ramie and pulls the phloem out in the reverse direction.

[0104] Ramies of different types have different weights. During processing, the ramie is placed on the weighing platform 610 before being put into the feeding channel. The pressure sensor 620 detects the weight x of the ramie, and the processor adjusts the rotational speed of the driving motor 3110 according to the value range of x.

[0105] If the ramie is divided into three categories: the first crop ramie, the second crop ramie and the third crop ramie, if x≥m1, it is the first crop ramie; if m2≤x<m1, it is the second crop ramie; if x<m2, it is the third crop ramie.

[0106] When x<m2, the processor controls the rotational speed of the driving motor 3110 to be v1. At this time, the connecting block 5130 does not move radially, and the lever body 5210 does not rotate relative to the frame 10 under the action of the torsion spring. The first hydraulic cylinder 540 and the second hydraulic cylinder 550 do not extend or retract, and the axial distance between the first peeling roller 220 and the second peeling roller 230 or the third peeling roller 240 is the largest.

[0107] When m2 ≤ x, the processor controls the rotational speed of the drive motor 3110 to be v2. At this time, the rotational speed of the turntable 5110 is relatively high. Under the action of centrifugal force, the connecting block 5130 moves towards the radially outer side of the turntable 5110. The connecting block 5130 drives the lever body 5210 to rotate relative to the frame 10, and the torsion spring is further compressed. Since the first hydraulic cylinder 540 is connected to the second hydraulic cylinder 550 through a hydraulic pipeline, when the piston rod of the first hydraulic cylinder 540 compresses, the piston rod of the second hydraulic cylinder 550 extends; when the piston rod of the first hydraulic cylinder 540 extends, the piston rod of the second hydraulic cylinder 550 shortens. At this time, the lever body 5210 drives the piston rod of the first hydraulic cylinder 540 to compress through the connecting rod 5220, and the extension of the piston rod of the second hydraulic cylinder 550 will drive the sliding member 210 to slide on the frame 10, reducing the axial distance between the first peeling roller 220 and the second peeling roller 230 or the third peeling roller 240. If m2 ≤ x < m1, the processor controls the rotational speed v2 of the drive motor 3110 to reach the maximum value. At this time, the axial distance between the first peeling roller 220 and the second peeling roller 230 or the third peeling roller 240 is the smallest. If x ≥ m1, the processor controls the rotational speed v2 of the drive motor 3110 to be an appropriate value, and the axial distance between the first peeling roller 220 and the second peeling roller 230 or the third peeling roller 240 is moderate.

[0108] In summary, the ramie peeling machine of the present application can process different types of ramie with peeling rollers of different axial distances and different rotational speeds

[0109] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0110] The above-described embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A hemp peeling machine, characterized in that, include: frame; The peeling assembly includes a sliding member, a first peeling roller, and a second and a third peeling roller, both rotatably connected to the frame. The first peeling roller is rotatably connected to the sliding member, which is slidably mounted on the frame. A drive assembly is used to drive the second peeling roller and the third peeling roller to rotate in the same direction at the same speed; A transmission assembly is used to transmit the power of the drive assembly to the first peeling roller, wherein the first peeling roller rotates at the same speed in the opposite direction to the second peeling roller or the third peeling roller; A control component is used to adjust the axial distance between the first peeling roller and the second and third peeling rollers according to the power of the drive component. A control system is used to detect the physical properties of ramie and adjust the power of the drive assembly according to the physical properties of ramie, including the weight of ramie.

2. The hemp stripping machine as described in claim 1, characterized in that, The drive assembly includes a drive unit, a drive gear, and two driven gears. The second peeling roller and the third peeling roller are both connected to the driven gears. The drive gear is rotatably connected to the frame and simultaneously meshes with the two driven gears. The transmission assembly is used to transmit the power of the drive gear to the first peeling roller. The drive unit is mounted on the frame and is used to drive the drive gear to rotate.

3. The hemp stripping machine as described in claim 2, characterized in that, The transmission assembly includes a first synchronous pulley, a second synchronous pulley, a synchronous belt, and an elastic tensioning mechanism; the first synchronous pulley is coaxially connected to the drive gear; the second synchronous pulley is coaxially connected to the first peeling roller; the synchronous belt is used to transmit power from the first synchronous pulley to the second synchronous pulley; The elastic tensioning mechanism is used to tension the synchronous belt in real time.

4. The hemp stripping machine as described in claim 3, characterized in that, The transmission ratio between the first and second synchronous pulleys is equal to the transmission ratio between the driving gear and the driven gear.

5. The hemp stripping machine as described in claim 3, characterized in that, The elastic tensioning mechanism includes a mounting cylinder, a tensioning spring, a mounting base, and a tensioning wheel; the tensioning wheel is rotatably connected to the mounting base and is used to tension the synchronous belt; one end of the mounting base away from the tensioning wheel is located inside the mounting cylinder; the mounting cylinder is mounted on the frame; both ends of the tensioning spring are connected to the mounting base and the frame, respectively.

6. The hemp stripping machine as described in claim 1, characterized in that, The control assembly includes a centrifugal diameter changing mechanism, a lever mechanism, an elastic reset mechanism, a first hydraulic cylinder, a second hydraulic cylinder, and oil pipelines; The centrifugal diameter changing mechanism is coaxially connected to the second peeling roller or the third peeling roller. The centrifugal diameter changing mechanism can undergo radial deformation according to its own rotation speed. The centrifugal diameter changing mechanism is in active contact with the lever mechanism and exerts radial pressure on the lever mechanism. The lever mechanism is used to amplify the force exerted by the centrifugal reducing mechanism on the lever mechanism and transmit it to the piston rod of the first hydraulic cylinder; The elastic reset mechanism is used to ensure that the lever mechanism remains in contact with the centrifugal diameter changing mechanism during the deformation process of the centrifugal diameter changing mechanism. The internal oil chamber of the first hydraulic cylinder is connected to the internal oil chamber of the second hydraulic cylinder through the oil pipeline. When the piston rod of the first hydraulic cylinder extends / retracts, the piston rod of the second hydraulic cylinder retracts / extends. The piston rod of the second hydraulic cylinder can drive the sliding member to move along the frame.

7. The hemp stripping machine as described in claim 6, characterized in that, The centrifugal diameter reducing mechanism includes a turntable, a tension spring, and a connecting block; the turntable is coaxially connected to the second peeling roller or the third peeling roller, and limiting blocks extending radially along the turntable are respectively provided on both radial sides of the turntable; there are two connecting blocks, each of which is slidably engaged with one of the limiting blocks, and the radial outer side wall of the connecting block is in movable contact with the lever mechanism; there is at least one tension spring, and both ends of the tension spring are respectively connected to one of the connecting blocks.

8. The hemp stripping machine as described in claim 7, characterized in that, The lever mechanism includes a lever body and a connecting rod; the elastic reset mechanism includes a torsion spring; the end face of the connecting block that contacts the lever body is an arc surface; The lever body is rotatably connected to the frame at point A. The torsion spring is sleeved on the pivot of the lever body, and the two ends of the torsion spring are respectively connected to the lever body and the frame. One end of the lever body is in movable contact with the connecting block at point B, and the other end of the lever body is rotatably connected to the connecting rod at point C. The length of the line AB is greater than the length of the line AC. The end of the connecting rod away from the lever body is rotatably connected to the piston rod of the first hydraulic cylinder.

9. The hemp stripping machine as described in claim 1, characterized in that, The control system includes a weighing platform, pressure sensors, a support platform, a buffer pad, and a processor; the gap between the first peeling roller and the second peeling roller forms a feeding channel; the weighing platform is mounted on the frame and located in front of the feeding channel; the weighing platform, the support platform, and the buffer pad are arranged sequentially from top to bottom; multiple pressure sensors are provided between the weighing platform and the support platform; the pressure sensors and the drive assembly are both electrically connected to the processor.

10. The hemp stripping machine as described in claim 9, characterized in that, It also includes a protective shell; the protective shell is disposed on the frame and sleeved on the outside of the peeling assembly, the transmission assembly and the control assembly, and the protective shell is provided with a feed port communicating with the feed channel.

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