Modularized automatic coring device for tetrapanax papyriferus

Abstract

The utility model relates to the technical field of tetrapanax papyriferus processing equipment, in particular to a modularized automatic coring device for tetrapanax papyriferus, which comprises a feeding mechanism, a section cutting mechanism, a feeding mechanism and a coring mechanism. The tetrapanax papyriferus stem cutting machine is reasonable and compact in structure, the feeding mechanism can automatically arrange tetrapanax papyriferus stems in order and continuously convey the whole tetrapanax papyriferus stems to the belt conveyor one by one, the shape righting mechanism can straighten bent tetrapanax papyriferus, the section cutting mechanism can automatically cut the whole tetrapanax papyriferus stems into a plurality of sections according to the set length, and the cutting efficiency is improved. The cut tetrapanax papyriferus stem sections can enter the feeding mechanism along the guide plate and are conveyed to the clamping assembly to be clamped, and finally tetrapanax papyriferus cores are jacked out of the tetrapanax papyriferus stem sections through the core taking mechanism. In the process, manual cutting is not needed, the degree of dependence on manpower can be greatly reduced, potential safety hazards are avoided, the ricepaperplant pith coring operation efficiency is high, the labor intensity of operators is reduced, all procedures can be automatically linked, and ricepaperplant pith coring operation can be continuously carried out.

Description

Technical Field

[0001] This utility model relates to the technical field of pith processing equipment, and is a modular automatic pith core extraction device. Background Technology

[0002] Tetrapanax papyriferus is the dried pith of the stem of Tetrapanax papyriferus, a plant in the Araliaceae family. It is cylindrical in shape and can be used in traditional Chinese medicine. It has the effects of clearing heat and promoting diuresis, promoting lactation and clearing the orifices. It is often used to treat diseases such as difficulty urinating, insufficient lactation after childbirth, and lack of milk production. It can also be used to make handicrafts such as Tetrapanax papyriferus paintings and flowers.

[0003] Tetrapanax papyriferus (Tongcao) is typically harvested in autumn, its stems cut into sections, and the pith extracted while fresh. The pith is then straightened and dried. The traditional method for extracting the pith involves first cutting the stems into appropriately sized sections using a handsaw or electric saw. The wood is then placed on a bamboo stick or metal rod and manually beaten with a mallet to push out the pith. Finally, the pith is dried. This traditional method is time-consuming and laborious. Inserting the wooden stick into the pith can easily puncture it, making it difficult to extract the pith completely or resulting in incomplete extraction. It also increases the risk of hand injuries, cuts, and punctures from the saw blade. Industry surveys indicate that over 20% of farmers experience hand injuries during Tetrapanax papyriferus processing. During harvest season, the low efficiency of manual processing by growers means that supply cannot meet market demand.

[0004] Chinese patent document CN217292708U discloses a hand-cranked core-removing device for pith from tongcao (a type of medicinal herb), comprising a processing platform, a clamping device, and a core-removing tool. The core-removing tool includes a tool holder, a tool screw, a round rod tool, and a crank handle. The tool holder is mounted on the processing platform, and has a mounting hole with an internal thread matching the tool screw on its inner wall. The tool screw is installed in the mounting hole. One end of the tool screw is connected to the round rod tool, and the other end is connected to the crank handle. The clamping device includes an adjusting base and a fixing... The device comprises a fixed clamping block, a movable clamping block, and an adjusting screw. The adjusting base has a limiting block with an adjusting through hole. The adjusting through hole has an internal thread matching the adjusting screw. The adjusting screw is installed within the adjusting through hole. The fixed clamping block is mounted on the limiting block and has a first clamping part. The movable clamping block has a second clamping part that mates with the first clamping part, a sleeve, and a limiting through hole. The lower part of the movable clamping block is movably installed within a limiting rod, and one end of its upper part is connected to the limiting block via an elastic component. Although its structure is simple and convenient for on-site processing, it still requires manual loading and fixing of each piece, resulting in high labor intensity, low work efficiency, and low processing accuracy, affecting the quality of the pith. It also has insufficient capacity to handle bent pith, and improper operation can easily lead to scratches from the cutting tools, making it suitable only for small-scale processing needs.

[0005] Chinese patent document CN104772804A discloses an automatic tongcao (Tetrapanax papyrifer) core peeling machine, which includes a frame, a power unit, a feeding trough, a feeding plate, a discharge gate, a clamping mold, a core-removing mold, an unloading mold, and a controller. It utilizes the controller and power unit to control the front clamping cylinder, rear clamping cylinder, feeding cylinder, discharge cylinder, core-removing cylinder, and unloading cylinder to drive the feeding trough, feeding plate, discharge gate, clamping mold, core-removing mold, and unloading mold to automatically process tongcao wood. The core-removing mold removes the tongcao core from the tongcao wood, improving the processing efficiency. However, it still requires farmers to manually cut the tongcao into sections and transport them to the core-removing machine, and it cannot correct and shape bent tongcao wood, still requiring manual straightening. Its processing capacity can only meet small-scale processing needs.

[0006] Therefore, the existing core extraction operation of Tetrapanax papyrifer has the following shortcomings in actual use: it requires manual cutting into sections and pre-straightening of bent materials, which is highly dependent on manual labor; it is time-consuming and labor-intensive, with low core extraction efficiency and high labor intensity; the connection between processes still depends on manual labor and there is no continuous operation capability; the tools are rudimentary and the equipment is not protected, which poses safety hazards. Summary of the Invention

[0007] This utility model provides a modular automatic core-removing device for Tetrapanax papyrifer, which overcomes the shortcomings of the prior art. It can effectively solve the problems of existing Tetrapanax papyrifer core-removing operations, such as the need for manual cutting into sections, high dependence on manual labor, time-consuming and labor-intensive, low core-removing efficiency, high labor intensity, the need for manual labor to connect processes, lack of continuous operation capability, rudimentary tools, lack of equipment protection, and potential safety hazards.

[0008] The technical solution of this utility model is achieved through the following measures: A modular automatic core-removing device for *Tetrapanax papyriferus* includes a feeding mechanism, a cutting mechanism, a conveying mechanism, and a core-removing mechanism. A belt conveyor is provided on the upper rear side of the feeding mechanism, and the left end of the belt conveyor is located to the left of the feeding mechanism. After whole *Tetrapanax papyriferus* stems are placed into the feeding mechanism in batches, the feeding mechanism can automatically arrange the *Tetrapanax papyriferus* stems neatly and continuously convey the whole *Tetrapanax papyriferus* stems one after another to the belt conveyor. The belt conveyor conveys the single *Tetrapanax papyriferus* stems from right to left to the cutting mechanism. The cutting mechanism can automatically cut the whole *Tetrapanax papyriferus* stems into several segments according to the set length.

[0009] The rear side of the cutting mechanism is equipped with a feeding mechanism that can continuously convey the Tongde wood stem segments. The inlet of the feeding mechanism is aligned with the outlet of the cutting mechanism, so that the cut Tongde wood stem segments can enter the feeding mechanism through the outlet.

[0010] The feeding mechanism is equipped with a core-removing mechanism on the lower side, which can remove the core of Tetrapanax papyriferus from the stem segment of Tetrapanax papyriferus. The core-removing mechanism includes a second frame, a clamping component and a pushing component. The second frame is fixedly installed on the lower side of the feeding mechanism. The second frame corresponding to the outlet position of the feeding mechanism is equipped with a clamping mechanism for clamping the stem segment of Tetrapanax papyriferus. The right side of the clamping mechanism is equipped with a pushing component that can squeeze the core of Tetrapanax papyriferus out from the stem segment of Tetrapanax papyriferus.

[0011] The cutting mechanism includes a first frame, linear guides, a cutting base plate, a knife holder return spring, a U-shaped knife holder, a cutting blade, a first linear actuator, a support rod, a sensor mounting base, a first detector, and a guide plate. The first frame is located on the left side of the belt conveyor. Two linear guides are spaced apart on the upper side of the first frame. The cutting base plate is fixedly mounted on the upper right side of each of the two linear guides via sliders. Two knife holder return springs are spaced apart between the right end of the cutting base plate and the left end of the belt conveyor. A U-shaped knife holder is fixedly mounted in the middle of the upper part of the cutting base plate. A cutting blade that can move up and down is slidably mounted inside the U-shaped knife holder. A material discharge port with an opening facing left and penetrating vertically is provided on the cutting base plate below the cutting blade. A first straight hole penetrating vertically is provided in the middle of the upper end of the U-shaped knife holder. A first linear actuator is fixedly installed on the upper side of the U-shaped knife holder. The lower inner side of the first linear actuator has a lower extension end, which passes through the first straight hole and is fixedly installed together with the upper middle part of the cutting knife. The lower end of the cutting knife, the lower inner side of the U-shaped knife holder, and the upper upper part of the cutting base plate form a cutting space, which is exactly aligned with the discharge port at the middle of the left end of the belt conveyor. Two support rods are fixedly installed at a distance from front to back on the upper left side of the U-shaped knife holder. A sensor mounting base is slidably installed between the two support rods. The lower middle part of the sensor mounting base has a first detector that can detect whether the left end of the pierced wood stem has reached the predetermined position. A guide plate with a front-high and rear-low orientation is fixedly installed on the upper inner side of the first frame. The lower rear side of the guide plate is exactly abutted against the feed port at the front end of the feeding mechanism.

[0012] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0013] The aforementioned cutting mechanism may further include a material pre-compression assembly and a material tilting bracket. A material pre-compression assembly may be provided on the right side of the U-shaped blade holder. This assembly may include an anti-slip table, guide rods, an upper pressure plate, an upper support, a T-shaped tie rod, a tension spring fixing rod, and a material pre-compression tension spring. An anti-slip table is provided on the cutting base plate corresponding to the right side of the material inlet. The upper center of the anti-slip table has an upward-opening, horizontally-through lower arc-shaped notch, within which are several lower anti-slip teeth. Two guide rods are fixedly installed on the cutting base plate corresponding to the front and rear sides of the middle of the anti-slip table, respectively. An upper pressure plate is slidably installed between the lower parts of the two guide rods. The upper pressure plate is located below the cutting blade. The lower side of the upper pressure plate corresponding to the lower arc-shaped notch has an downward-opening, horizontally-through lower arc-shaped notch. The upper arc-shaped notch has several upper anti-slip teeth inside; an upper support is fixedly installed between the upper ends of the two guide slide rods, and the left side of the upper support is fixedly installed together with the lower outer side of the lower extension end; two T-shaped tie rod holes are symmetrically arranged on the upper support corresponding to the position between the two guide slide rods, and a T-shaped tie rod is installed in each T-shaped tie rod hole, the lower end of which is fixedly installed together with the corresponding position on the upper side of the upper pressure plate; tension spring fixing rods are fixedly installed in the middle of the front side and the middle of the rear side of the upper pressure plate, and a material pre-compression tension spring is provided between each tension spring fixing rod and the corresponding position on the upper side of the cutting base plate.

[0014] A material tilting bracket can be fixedly installed on the cutting base plate corresponding to the lower front position of the U-shaped knife holder. The material tilting bracket may include a fixed sleeve, a horizontal bar, an L-shaped hook rod, a tilting control handle, a connecting rod fixing seat, and a connecting rod. A fixed sleeve with an axial through hole in the middle is fixedly installed on the cutting base plate corresponding to the lower front position of the U-shaped knife holder. The inner side of the fixed sleeve is fitted together with the outer side of the right part of the horizontal bar. Several L-shaped hook rods are fixedly installed at intervals from the middle to the lower left side of the horizontal bar. A tilting control handle is fixedly installed on the outer side of the right end of the horizontal bar. The front part of the tilting control handle is curved in a front-upward and rear-downward direction. A connecting rod fixing seat is fixedly installed on the front side of the upper support. The left end of the connecting rod fixing seat has a third straight hole that runs vertically through it. A connecting rod is fixedly installed in the third straight hole. After the connecting rod moves downward, its lower end can press down on the corresponding position on the upper front end of the tilting control handle, so that the horizontal bar drives the L-shaped hook rod to tilt backward and upward to a horizontal position, catching the cut wood stem segment.

[0015] A straightening mechanism for straightening bent tussah wood can be provided between the aforementioned belt conveyor and the cutting mechanism. The straightening mechanism may include a third frame, a first conveyor belt, a first drive motor, a first conveyor belt tensioning device, a left support, a right support, a strip support, a pressure roller, a second detector, a guide rod, and a compression spring. A third frame is provided between the belt conveyor and the cutting mechanism. A first conveyor belt is fixedly installed on the third frame corresponding to the left end of the belt conveyor. A first drive motor is driven to the rear left end of the first conveyor belt. A first conveyor belt tensioning device is provided between the right end of the first conveyor belt and the third frame. A straightening mechanism is fixedly installed on the third frame at intervals on the left and right sides corresponding to the front and rear sides of the first conveyor belt. Equipped with a left support and a right support, both of which are U-shaped with downward openings; a strip-shaped support with a right side curved in a downward-left-upward-right-upward direction is slidably installed on the inner side of the lower part of the left support, and the outer side of the right side of the strip-shaped support is slidably installed together with the inner side of the lower part of the right support; a downward-opening strip-shaped mounting groove is provided in the middle of the lower side of the strip-shaped support, and several pressure rollers are rotatably installed in the groove at intervals; a second detector for detecting the presence of material is provided on the lower right end of the strip-shaped support; a second straight hole is provided in the middle of the upper end of the left support and the middle of the upper end of the right support, and a guide rod is fixedly installed in each second straight hole with its lower end fixed to the corresponding position on the upper side of the strip-shaped support, and a compression spring is provided on the outer side of each guide rod.

[0016] The aforementioned feeding mechanism may include a fourth frame, a second conveyor belt, and a second drive motor. The lower side of the belt conveyor is fixedly installed together with the upper rear part of the fourth frame. The front end of the fourth frame is lower than the rear end. The fourth frame includes a left upright plate, a right upright plate, and transverse support rods. The left and right upright plates are fixedly connected by several transverse support rods. The front part of the left and right upright plates are provided with trapezoidal notches that open upwards and have through-holes on both sides. Each trapezoidal notch is fixedly installed with a guide plate that is inclined in a front-high-rear-low shape. Two rotating shafts are rotatably installed between the left and right upright plates at intervals corresponding to the rear position of the trapezoidal notches. At least two second conveyor belts that are inclined in a front-low-rear-high shape are provided between the two rotating shafts at intervals. Several first partitions are provided on the second conveyor belts at intervals. The distance between two adjacent first partitions is exactly matched with the outer diameter of the tussah wood. A second drive motor is fixedly installed on the left side of the upper rear end of the left upright plate. The output shaft of the second drive motor is connected to the left end of the rotating shaft located on the upper side.

[0017] The aforementioned feeding mechanism may include a fifth frame, a housing, a third conveyor belt, a third drive motor, a second linear actuator, and a third detector. A fifth frame is located behind the first frame. The housing is fixedly installed on the upper inner side of the fifth frame. A third conveyor belt is rotatably installed inside the housing. Several second partitions are spaced on the third conveyor belt. The third drive motor is connected to the outer side of the left end of the third conveyor belt drive shaft. The right side of the third drive motor is fixedly installed together with the corresponding position on the left side of the housing. A feed inlet is located in the middle of the front end of the housing, which is exactly at the lower rear side of the guide plate. A discharge outlet is located in the middle of the lower side of the housing. A hopper door is hinged to the lower side of the housing corresponding to the discharge outlet. The hopper door is controlled to open and close by a second linear actuator fixedly installed on the housing. At least two third detectors are spaced on the left and right sides of the lower side of the hopper door to detect whether there are any open wood stem segments in the clamping mechanism.

[0018] The aforementioned clamping assembly may include a tray, a third linear actuator, a clamping guide rail, a front clamp, a rear clamp, V-shaped teeth, and a fourth linear actuator. A tray for holding the detached wood stem segments is provided on the second frame corresponding to the discharge port of the feeding mechanism. Two third linear actuators are fixedly installed at intervals on the rear side of the tray. The lower rear side of the third linear actuator is fixedly installed together with the upper side of the second frame at the corresponding position. Two clamping guide rails are symmetrically provided on the second frame corresponding to the left and right sides of the tray. A front clamp and a rear clamp are installed on the two clamping guide rails at intervals via sliders. Several V-shaped teeth with opposite openings are fixedly installed at intervals on the rear side of the front clamp and the front side of the rear clamp. A clamping space for the detached wood stem segments can be formed between the two sets of V-shaped teeth. A fourth linear actuator is fixedly installed in the middle of the front side of the front clamp and the middle of the rear side of the rear clamp. The end of each fourth linear actuator away from the V-shaped teeth is fixedly installed on the second frame via a bracket.

[0019] The aforementioned jacking assembly may include a sixth frame, a fifth linear actuator, a through rod, a frustum-shaped mandrel, and a T-shaped guide seat. The sixth frame is fixedly installed on the second frame corresponding to the right side of the clamping assembly. The fifth linear actuator is fixedly installed on the upper side of the sixth frame. The inner left side of the fifth linear actuator has a left extension end that can extend to the left. The left end of the left extension end is fixedly installed with a through rod. The outer left end of the through rod is detachably installed with a frustum-shaped mandrel that is larger on the left and smaller on the right. The outer side of the through rod corresponding to the right side of the frustum-shaped mandrel is fitted with a T-shaped guide seat. The lower end of the T-shaped guide seat is fixedly installed together with the corresponding position on the upper side of the second frame.

[0020] The aforementioned core-taking mechanism may further include a material collection and processing system located at the lower part of the second frame. The material collection and processing system may include a waste discharge conveyor belt, a product discharge transmission belt, and a box-shaped product collection baffle. The lower inner side of the second frame is provided with a waste discharge conveyor belt that is inclined in a front-low, rear-high configuration. The left side of the second frame is provided with a product discharge transmission belt that is inclined in a front-low, rear-high configuration. The drive shaft of the product discharge transmission belt is fixedly installed together with the drive shaft of the waste discharge conveyor belt. The drive shaft of the product discharge conveyor belt is connected to the output shaft of the third drive motor via a chain drive. A box-shaped product collection baffle with an opening facing downwards is fixedly installed in the middle of the left side of the second frame. The right side plate of the box-shaped product collection baffle, corresponding to the left end of the clamping assembly, is provided with a material passage hole that runs through both the inside and outside.

[0021] This utility model has a reasonable and compact structure and is easy to use. It can batch feed whole tonghua wood stems into the feeding mechanism, which automatically arranges the tonghua wood stems neatly and continuously transports them one after another to the belt conveyor. Then, the straightening mechanism straightens the bent tonghua wood, and then feeds it into the cutting mechanism, which automatically cuts the whole tonghua wood stem into several segments according to the set length. The cut tonghua wood stem segments can enter the feeding mechanism along the guide plate and be transported to the clamping component for clamping. Finally, the core extraction mechanism pushes the tonghua core out of the tonghua wood stem segments. The above process does not require manual cutting, which can greatly reduce the dependence on manual labor, save time and labor, better protect the personal safety of operators, avoid cuts and crushing injuries, and effectively improve the work efficiency of tonghua core extraction, reduce the labor intensity of operators, and has a high degree of automation. The processes can be automatically connected and can continuously carry out tonghua core extraction operations. It has the characteristics of safety, labor saving, simplicity and high efficiency. Attached Figure Description

[0022] Appendix Figure 1 This is a schematic diagram of the main structure of embodiments 1-9 of this utility model.

[0023] Appendix Figure 2 For the appendix Figure 1 A three-dimensional structural diagram of the feeding mechanism.

[0024] Appendix Figure 3 For the appendix Figure 1 A three-dimensional structural diagram of the orthopedic mechanism.

[0025] Appendix Figure 4 For the appendix Figure 1 A three-dimensional structural diagram of the cutting mechanism in the diagram.

[0026] Appendix Figure 5 For the appendix Figure 1 A three-dimensional structural diagram of the feeding mechanism.

[0027] Appendix Figure 6 For the appendix Figure 1 A three-dimensional structural diagram of the core extraction mechanism.

[0028] Appendix Figure 7 This is a three-dimensional structural diagram of the single module of this utility model in use.

[0029] Appendix Figure 8 This is a schematic diagram of the left-hand structure of the two modules of this utility model in use.

[0030] The codes in the attached diagram are as follows: 1 for belt conveyor, 2 for first frame, 3 for linear guide rail, 4 for cutting base plate, 5 for knife holder return spring, 6 for U-shaped knife holder, 7 for cutting knife, 8 for first linear actuator, 9 for support rod, 10 for sensor mounting base, 11 for first detector, 12 for guide plate, 13 for material discharge port, 14 for lower extension end, 15 for cutting space, 16 for pine needle stem segment, 17 for second frame, 18 for third frame, 19 for first conveyor belt, 20 for first drive motor, and 21 for the second... A conveyor belt tensioning device, 22 is the left support, 23 is the right support, 24 is the strip support, 25 is the pressure roller, 26 is the second detector, 27 is the guide rod, 28 is the compression spring, 29 is the strip mounting groove, 30 is the anti-slip table, 31 is the guide slide rod, 32 is the upper pressure plate, 33 is the upper support, 34 is the T-shaped tie rod, 35 is the tension spring fixing rod, 36 is the material pre-compression tension spring, 37 is the lower arc-shaped notch, 38 is the lower anti-slip tooth, 39 is the upper arc-shaped notch, 40 is the fixing sleeve, 41 is the horizontal bar, 42 is the L-shaped hook rod, 43 is the... 44 is the flip control handle, 45 is the linkage fixing seat, 46 is the linkage, 47 is the second conveyor belt, 48 is the second drive motor, 49 is the left upright plate, 50 is the right upright plate, 51 is the transverse support rod, 52 is the trapezoidal notch, 53 is the guide plate, 54 is the rotating shaft, 55 is the first partition plate, 56 is the fifth frame, 57 is the housing, 58 is the third conveyor belt, 59 is the third drive motor, 60 is the second linear actuator, 61 is the third detector, 62 is the second partition plate, 63 is the feed inlet, 64 is the hopper door, 65 is the pallet, 66 is the second partition plate. 66 is the third linear actuator, 67 is the clamp guide rail, 68 is the front clamp, 69 is the rear clamp, 70 is the V-shaped chuck, 71 is the fourth linear actuator, 72 is the sixth frame, 73 is the fifth linear actuator, 74 is the through rod, 75 is the frustum-shaped top head, 76 is the T-shaped guide seat, 77 is the left extension end, 78 is the waste discharge conveyor belt, 79 is the product discharge transmission belt, 80 is the box-shaped product collection baffle, 81 is the chain drive, 82 is the material passage hole, 83 is the baffle, 84 is the slider, and 85 is the discharge connecting guide plate. Detailed Implementation

[0031] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0032] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0033] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0034] Example 1: As shown in the attached document Figures 1 to 8 As shown, the modular automatic core-removing device for *Tetrapanax papyrifer* includes a feeding mechanism, a cutting mechanism, a conveying mechanism, and a core-removing mechanism. A belt conveyor 1 is provided on the upper rear side of the feeding mechanism, and the left end of the belt conveyor 1 is located to the left of the feeding mechanism. After whole *Tetrapanax papyrifer* stems are placed into the feeding mechanism in batches, the feeding mechanism can automatically arrange the *Tetrapanax papyrifer* stems neatly and continuously convey the whole *Tetrapanax papyrifer* stems one after another to the belt conveyor 1. The belt conveyor 1 conveys the single *Tetrapanax papyrifer* stems from right to left to the cutting mechanism. The cutting mechanism can automatically cut the whole *Tetrapanax papyrifer* stems into several segments according to the set length.

[0035] In the above technical solution, to prevent the stems of the *Tetracentron sinense* from falling off the rear side of the belt conveyor 1, a baffle 82 can be provided along the length direction of the rear side of the belt conveyor 1. The belt conveyor 1 can be driven by a frequency converter motor, servo motor, or stepper motor, etc., so as to adjust the motor speed and control the material transfer speed.

[0036] Depending on the requirements, the feeding mechanism can adopt existing chain conveyors, chain elevators, or belt elevators. To facilitate the neat arrangement of each tracheid and the continuous conveying of whole tracheids one after another to the belt conveyor 1, partitions can be added to the chain elevator or belt elevator, ensuring that the space between adjacent partitions can only hold one tracheid. Alternatively, existing trough conveyor belts can be used, with grooves continuously provided on the surface of the conveyor belt. The size of the grooves can be determined according to the outer diameter and orientation of the tracheid. Alternatively, existing toothed conveyor belts can be used, with protruding teeth spaced apart. The spacing and tooth height between adjacent teeth can be determined by the outer diameter range of a single tracheid.

[0037] To reduce the workload of farmers loading materials, the aforementioned elevator, conveyor belt, or conveyor can be arranged with a lower front and higher rear, thus making it easier to lift materials from the ground onto the belt conveyor 1.

[0038] To automatically arrange the tongcao (Tetrapanax papyrifer) stems neatly, a conical hopper can be installed at the front end of the aforementioned elevator, conveyor belt, or conveyor. The length of the conical hopper can be determined by those skilled in the art based on the length range of the tongcao to be harvested. The width of the conical hopper is determined based on the outer diameter of the entire bundle of tongcao stems that an adult herbalist can handle at one time. The width of the discharge port at the lower end of the conical hopper should be compatible with the outer diameter of the tongcao stems. To facilitate the falling of the tongcao stems, a vibration mechanism, such as a vibration motor, can also be installed at the lower part of the conical hopper. Alternatively, a feeding trough that can feed individual stems can be directly used in the field of tongcao core extraction technology.

[0039] The rear side of the cutting mechanism is equipped with a feeding mechanism that can continuously convey the Tongtuo wood stem segments 16. The inlet of the feeding mechanism is aligned with the outlet of the cutting mechanism, so that the Tongtuo wood stem segments 16 cut into sections can enter the feeding mechanism through the outlet.

[0040] In the above technical solution, the cut Tongtuo wood stems fall from the discharge port of the pre-cutting mechanism and automatically enter the feed port of the feeding mechanism, so that the cut Tongtuo wood stem segments 16 can smoothly enter the feed port at the front end of the feeding mechanism.

[0041] Depending on the requirements, the feeding mechanism can be a horizontally mounted belt conveyor 1 with partitions, a chain conveyor with partitions, a trough conveyor belt, or a toothed conveyor belt, etc., and the width of the feeding mechanism can be adapted to the length range of the travertine stem segments 16.

[0042] The feeding mechanism is equipped with a core-removing mechanism on the lower side, which can remove the core of the pith from the stem segment 16 of the pith tree. The core-removing mechanism includes a second frame 17, a clamping component and a pushing component. The second frame 17 is fixedly installed on the lower side of the feeding mechanism. The second frame 17, corresponding to the outlet position of the feeding mechanism, is equipped with a clamping mechanism for clamping the stem segment 16 of the pith tree. The right side of the clamping mechanism is equipped with a pushing component that can squeeze the core of the pith tree from the stem segment 16 of the pith tree.

[0043] In the above technical solution, the clamping component can adopt a clamping mechanism or holding mechanism commonly used in the field of core extraction technology of *Tetrapanax papyrifer*, such as a rhomboid toothed clamp including a front clamp and a rear clamp. Each of the front and rear clamps has vertically arranged teeth on opposite sides. Each tooth on opposite sides has a horizontally penetrating angular notch, and the opposite angular notches interlock to form a rhombus. The lower inclined surface of the angular notch extends to the bottom of the tooth, and the opening and closing of the front and rear clamps are controlled by a hydraulic cylinder. Whether the clamp holds the *Tetrapanax papyrifer* stem segment 16 can be determined by a pressure sensor, infrared beam sensor, infrared reflection sensor, laser sensor, or ultrasonic sensor.

[0044] Depending on the requirements, the pusher assembly can also adopt the pneumatic, hydraulic or electric core extraction structure in the field of pith core extraction technology, such as a cylinder, hydraulic cylinder or electric push rod with a push rod installed; it can also achieve automatic jacking out through a rotary motor-gear rack structure, that is, the rotary motor drives the gear to rotate on the rack, so that the rack moves left and right to push the pith out from the pith stem segment.

[0045] During use, after the bundles of Tongtuo wood stems are separated and placed into the feeding mechanism, the feeding mechanism can automatically arrange the Tongtuo wood stems neatly and continuously lift the whole Tongtuo wood stems one after another onto the belt conveyor 1. The belt conveyor 1 transports the single Tongtuo wood stems from right to left to the cutting mechanism. At this time, the length direction of the whole Tongtuo wood stem is consistent with the length direction of the belt conveyor 1.

[0046] After the tongtuo wood stem is fed into the cutting mechanism by the belt conveyor 1, it is automatically cut into several segments according to the set length, forming tongtuo wood stem segments 16. The tongtuo wood stem segments 16 come out from the discharge port of the cutting mechanism and enter the feed port 62 at the front end of the feeding mechanism. The feeding mechanism sends the tongtuo wood stem segments 16 to the discharge port of the feeding mechanism. When the tongtuo wood stem segments 16 fall from the discharge port of the feeding mechanism, the clamping component moves to clamp the tongtuo wood stem segments 16, and then the pushing component moves to squeeze the tongtuo core out of the tongtuo wood stem segments 16.

[0047] By repeating the above process, the core of the pith can be continuously extracted from the stem segment of the pith, which greatly improves the efficiency of the core extraction operation, effectively reduces the labor intensity of the operators, saves time and effort, and better protects the personal safety of the operators.

[0048] Depending on the requirements, the actions of each mechanism in this device can be controlled by the switching circuit in the existing technology, or automatic control can be achieved based on a microcontroller or PLC.

[0049] This utility model has a reasonable and compact structure and is easy to use. It can batch feed whole tonghua wood stems into the feeding mechanism, which automatically arranges the tonghua wood stems neatly and continuously transports them one after another to the belt conveyor 1. The belt conveyor 1 conveys the single tonghua wood stems from right to left to the cutting mechanism, which automatically cuts the whole tonghua wood stems into several segments according to the set length. After the cut tonghua wood stem segments 16 enter the feeding mechanism, they are transported to the clamping component for clamping. Then, the core extraction mechanism pushes the tonghua core out of the tonghua wood stem segments 16. The above process does not require manual cutting, which can greatly reduce the dependence on manual labor, save time and labor, better protect the personal safety of operators, avoid cuts and crushing injuries, and effectively improve the work efficiency of tonghua core extraction, reduce the labor intensity of operators, and has a high degree of automation. The various processes can be automatically connected and tonghua core extraction can be carried out continuously. It has the characteristics of safety, labor saving, simplicity and high efficiency.

[0050] The modularized automatic core-removing device for loose wood can be further optimized and / or improved according to actual needs:

[0051] Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 , 4 As shown in Figures 7 and 8, the cutting mechanism includes a first frame 2, linear guide rails 3, a cutting base plate 4, a U-shaped knife holder 6, a cutting knife 7, a first linear actuator 8, a support rod 9, a sensor mounting base 10, a first detector 11, and a guide plate 12. The first frame 2 is located on the left side of the belt conveyor 1. Two linear guide rails 3 are spaced apart on the upper side of the first frame 2. The cutting base plate 4 is fixedly mounted on the upper right side of the two linear guide rails 3 via sliders 83. Two knife holder return springs 5 ​​are spaced apart between the right end of the cutting base plate 4 and the left end of the belt conveyor 1.

[0052] In the above technical solution, the cutting base plate 4 can move left and right along the linear guide rail 3. The linear guide rail 3 can be a roller linear guide rail, a cylindrical linear guide rail, or a ball linear guide rail, as is available in the prior art. The linear guide rail 3 is a standard part with a built-in slider 83. In this embodiment, a cylindrical linear guide rail is used. The linear guide rail 3 can also be implemented using a slide rod and a linear bearing fitted on the outside of the slide rod.

[0053] During the process of the cutting blade 7 cutting the stem of the tongcao (a type of medicinal herb), the cutting base plate 4 can move to the left along the linear guide rail 3, so that the cutting blade 7 and the tongcao stem remain relatively stationary. This makes the cut of the tongcao stem segment 16 neater and cleaner, which is more conducive to the subsequent core extraction operation of tongcao. It can also prevent the high-speed movement of the tongcao stem from damaging the blade of the cutting blade 7, thereby extending the service life of the cutting blade 7. During the above process, the blade holder return spring 5 will be stretched, providing pre-tension force for the blade holder return spring 5. When the tongcao stem is cut, the traction force of the tongcao stem on the cutting base plate 4 to the left disappears. Under the action of the pre-tension force of the blade holder return spring 5, the cutting base plate 4 automatically resets and returns to the initial position.

[0054] A U-shaped knife holder 6 is fixedly installed on the upper middle part of the cutting base plate 4. A cutting knife 7 that can move up and down is slidably installed on the inner side of the U-shaped knife holder 6. A material discharge port 13 with an opening to the left and running through the top and bottom is provided on the cutting base plate 4 corresponding to the position below the cutting knife 7.

[0055] In the above technical solution, to facilitate the replacement of the cutting blade 7 or the grinding of the cutting edge, the cutting blade 7 may include a tool holder and a cutting blade detachably mounted on the tool holder. In this case, sliding grooves are provided on the inner front and inner rear sides of the U-shaped bracket, and the front and rear ends of the tool holder are embedded into the corresponding sliding grooves, thus achieving sliding installation between the cutting blade 7 and the U-shaped tool holder 6. For easy installation of the tool holder, the U-shaped tool holder 6 is a detachable tool holder, which can be achieved through two columns and a support plate detachably mounted on the top of the columns.

[0056] After the left side of the tongtu wood stem is cut off, it can fall through the discharge port 13 and proceed to the next process.

[0057] Depending on the requirements, the lower end of the cutting blade 7 is convex with an upward arc shape, so that the cutting edge at the lower end of the cutting blade 7 is more compatible with the shape of the tongtuo wood stem, so that the cutting blade 7 can cut the tongtuo wood stem better, while preventing the tongtuo wood stem from slipping, deviating, or moving.

[0058] The upper middle part of the U-shaped tool holder 6 is provided with a first straight hole that runs vertically through it. A first linear actuator 8 is fixedly installed on the upper side of the U-shaped tool holder 6. The lower inner side of the first linear actuator 8 is provided with a lower extension end 14. The lower extension end 14 passes through the first straight hole and is fixedly installed together with the upper middle part of the cutting blade 7.

[0059] In the above technical solution, the first linear actuator 8 can be a cylinder, hydraulic cylinder or electric actuator in the prior art, and the extended end is a piston rod. In this embodiment, it can be a cylinder; it can also be a rotary motor-gear rack mechanism, that is, the rotary motor drives the gear, so that the gear can drive the rack to move up and down.

[0060] With this configuration, the extended end can push the cutting blade 7 downwards, thereby cutting the stem of the Tongtuo wood into sections. This eliminates the need for manual cutting, greatly reducing the risk of workers being cut and effectively improving the efficiency of the cutting operation. It is characterized by high efficiency and labor saving.

[0061] The lower end of the cutting blade 7, the inner side of the lower part of the U-shaped blade holder 6, and the upper side of the cutting base plate 4 form a cutting space 15, which is exactly aligned with the discharge port in the middle of the left end of the belt conveyor 1.

[0062] With this setup, when the left end of the tragacanth stem comes out of the discharge port at the middle of the left end of the belt conveyor 1, it can just enter the cutting space 15, thus avoiding the tragacanth stem from being skewed and unable to be cut.

[0063] Two support rods 9 are fixedly installed at a distance from front to back on the upper left side of the U-shaped knife holder 6. A sensor mounting base 10 is slidably installed between the two support rods 9. A first detector 11 is provided on the lower middle part of the sensor mounting base 10, which can detect whether the left end of the pierced wood stem has reached the predetermined position. A guide plate 12 with a front-high and rear-low orientation is fixedly installed on the inner side of the upper end of the first frame 2. The lower rear side of the guide plate 12 is exactly abutted against the feed port at the front end of the feeding mechanism.

[0064] In the above technical solution, after the cut tongcao stem segment 16 falls onto the guide plate 12, it can roll backward and downward along the guide plate 12 and enter the feed inlet of the feeding mechanism; the sensor mounting base 10 can slide left and right along the support rod 9 to adjust the distance between the first detector 11 and the cutting blade 7, thereby changing the length of the cut tongcao stem segment 16. The cutting length can be relatively longer for thick tongcao stems and relatively shorter for thinner tongcao stems, so that the complete tongcao core can be taken out from the tongcao stem segment 16.

[0065] To prevent the first detector 11 from shifting due to vibration, a threaded hole with internal and external penetration can be provided on the sensor mounting base 10 corresponding to the position of the support rod 9, and a locking screw such as a hand screw can be installed in the threaded hole.

[0066] Depending on the requirements, the first detector 11 can be a proximity position sensor in the prior art, such as a laser position sensor, an infrared position sensor, or a capacitive position sensor. In this embodiment, considering that there is a lot of dust at the through-slot coring operation site, the first detector 11 can be an ultrasonic position sensor.

[0067] An emergency stop interlock switch can also be installed on the frame. When the device stops in an emergency, the extended end of the first linear actuator 8 can be automatically activated to return to its original position, so that the cutting blade 7 can be retracted and returned to its original position. This allows for instant braking in an emergency, which can greatly reduce scratches and punctures caused by tool operation errors compared to manual operation.

[0068] During use, after the left end of the tussock stem enters the cutting space 15, the right part of the tussock stem can still move to the left along with the belt conveyor 1. When the first detector 11 detects that the left end of the tussock stem has reached the predetermined position (predetermined length), it triggers the action of the first linear actuator 8. The extended end of the first linear actuator 8 extends downward, pushing the cutting blade 7 to move downward a set distance to cut off the left part of the tussock stem. During the above process, the cutting base plate 4 will move to the left along with the movement of the tussock stem. After that, the extended end of the first linear actuator 8 retracts upward, and the cutting base plate 4 is reset under the spring preload of the blade holder reset spring 5. The left part of the tussock stem segment 16 falls onto the guide plate 12 and can roll backward and downward along the guide plate 12 into the feed inlet of the feeding mechanism.

[0069] Example 3: As an optimization of the above examples, as shown in the appendix Figure 1 , 4 As shown in Figures 7 and 8, the cutting mechanism also includes a material pre-compression assembly and a material tilting bracket.

[0070] The right side of the U-shaped knife holder 6 is equipped with a material pre-compression assembly, which includes an anti-slip table 30, guide slide rods 31, an upper pressure plate 32, an upper support 33, a T-shaped tie rod 34, a tension spring fixing rod 35, and a material pre-compression tension spring 36. An anti-slip table 30 is provided on the cutting base plate 4 corresponding to the right side of the material discharge port 13. The upper center of the anti-slip table 30 has an upward-facing, horizontally-through lower arc-shaped notch 37, and several lower anti-slip teeth 38 are provided within the lower arc-shaped notch 37. Two guide slide rods 31 are fixedly installed on the cutting base plate 4 corresponding to the front and rear sides of the middle of the anti-slip table 30, respectively. An upper pressure plate 32 is slidably installed between the lower parts of the two guide slide rods 31. The upper pressure plate 32 is located below the cutting knife 7. The lower side of the upper pressure plate 32 corresponding to the lower arc-shaped notch 37 has an opening facing downwards... A horizontally extending upper arc-shaped notch 39 is provided, and several upper anti-slip teeth are provided inside the upper arc-shaped notch 39; an upper support 33 is fixedly installed between the upper ends of the two guide slide rods 31, and the left side of the upper support 33 is fixedly installed together with the lower outer side of the lower extension end 14; two vertically extending T-shaped tie rod holes 34 are symmetrically provided on the upper support 33 corresponding to the position between the two guide slide rods 31, and each T-shaped tie rod 34 hole is fitted with a T-shaped tie rod 34 whose lower end is fixedly installed together with the corresponding position on the upper side of the upper pressure plate 32; a tension spring fixing rod 35 is fixedly installed on the middle of the front side and the middle of the rear side of the upper pressure plate 32, and a material pre-compression tension spring 36 is provided between each tension spring fixing rod 35 and the corresponding position on the upper side of the cutting base plate 4.

[0071] During use, when the cutting blade 7 is in the initial position, the extended end of the first linear actuator 8 is in the initial state and has not extended downward. At this time, the upper support 33 pulls the upper pressure plate 32 upward through the T-shaped tie rod 34, so that the material pre-tensioning spring is in the stretched state.

[0072] When the first detector 11 detects that the left end of the tragacanth stem is in place, the extended end of the first linear actuator 8 moves downward. During this process, under the elastic restoring force of the material pre-tension spring, the tragacanth stem can be pressed and fixed more quickly, allowing the cutting base plate 4 to move to the left along with the tragacanth stem in advance. This ensures that the cutting blade 7 and the tragacanth stem are in a relatively stationary state, improving the accuracy of the tragacanth segment cutting length. The cutting error can be controlled at the millimeter level, and the segment length is uniform, providing accurate material for subsequent core extraction and reducing wood layer residue. During this process, the power for the cutting base plate 4 to move to the left is provided by the conveyor belt 1 (or the straightening mechanism) conveying force to the tragacanth stem. Therefore, after the upper pressure plate 32 fixes the tragacanth stem in the lower arc-shaped notch 37 of the anti-slip table 30, the part of the tragacanth stem located on the conveyor belt 1 (or the straightening mechanism) can push the cutting base plate 4 to move to the left.

[0073] After the stalk of the sapwood is cut off, the extended end of the first linear actuator 8 returns to its original position, and the upper pressure plate 32 releases the remaining stalk of the sapwood, allowing the remaining stalk of the sapwood to continue moving to the left. During the above process, the cutting base plate 4 automatically returns to its original position under the spring restoring force of the tool holder return spring 5.

[0074] With this configuration, the upper arc-shaped notch 39 and the lower arc-shaped notch 37 can better guide the travertine stem, and the anti-slip teeth can effectively prevent the travertine stem from slipping during the cutting process; the guide slide rod 31 can better guide the upper pressure plate 32 to slide up and down, and a linear bearing can be installed between the guide slide rod 31 and the upper pressure plate 32 to reduce the friction between the two.

[0075] According to requirements, when a straightening mechanism is provided between the cutting mechanism and the belt conveyor 1, the right end of the knife holder reset spring 5 can be directly fixed together with the corresponding position on the left end of the straightening mechanism.

[0076] A material tilting bracket is fixedly installed on the cutting base plate 4 at the lower front position of the U-shaped knife holder 6. The material tilting bracket includes a fixed sleeve 40, a horizontal bar 41, an L-shaped hook rod 42, a tilting control handle 43, a connecting rod fixing seat 44, and a connecting rod 45. A fixed sleeve 40 with an axial through hole in the middle is fixedly installed on the cutting base plate 4 at the lower front position of the U-shaped knife holder 6. The inner side of the fixed sleeve 40 is fitted together with the outer right side of the horizontal bar 41. Several L-shaped hook rods 42 are fixedly installed at intervals from the middle to the lower left side of the horizontal bar 41. A flip control handle 43 is fixedly installed on the outer side of the right end of the horizontal bar 41. The front part of the flip control handle 43 is curved in a front-upward and rear-downward shape. A connecting rod fixing seat 44 is fixedly installed on the front side of the upper support 33. The left end of the connecting rod fixing seat 44 is provided with a third straight hole that runs through the top and bottom. A connecting rod 45 is fixedly installed in the third straight hole. After the connecting rod 45 moves downward, its lower end can press down on the corresponding position on the upper side of the front end of the flip control handle 43, so that the horizontal bar 41 drives the L-shaped hook rod 42 to flip backward and upward to a horizontal position, and catch the cut-off Tongtuo wood stem segment 16.

[0077] In the above technical solution, during each downward movement of the extended end of the first linear actuator 8, the connecting rod 45 moves downward along with it. When the cutting edge of the lower end of the cutting blade 7 contacts the upper side of the travertine stem, the lower end of the connecting rod 45 can press the flip control handle 43 downward into place, causing the L-shaped hook rod 42 to flip backward from the vertical state to the horizontal state, temporarily supporting the left side of the travertine stem. This prevents the left side of the travertine stem from bending, tilting, or flipping downward under its own weight during the cutting process, making cutting easier and preventing damage to the cutting blade of the cutting blade 7 from the travertine stem, thus saving the cost of using the cutting blade 7.

[0078] Furthermore, after the travertine stem is cut, the extended end of the first linear actuator 8 returns to its original position, and the L-shaped hook 42 flips backward from its horizontal position to return to its vertical position, releasing the cut travertine stem segment 16 so that it falls onto the guide plate 12 and slides into the feed inlet 62 of the feeding mechanism.

[0079] With this setup, the material flipping bracket and the material pre-compression component work together to effectively prevent damage to the pith caused by the shaking of the tongtuo wood stem during cutting, thus improving the integrity of the medicinal material.

[0080] Example 4: As an optimization of the above embodiments, as shown in the appendix. Figure 1 , 3 As shown in Figures 7 and 8, a straightening mechanism is provided between the belt conveyor 1 and the cutting mechanism to straighten the bent travertine logs.

[0081] The orthopedic mechanism includes a third frame 18, a first conveyor belt 19, a first drive motor 20, a first conveyor belt tensioning device 21, a left support 22, a right support 23, a strip support 24, a pressure roller 25, a second detector 26, a guide rod 27, and a compression spring 28. A third frame 18 is provided between the belt conveyor 1 and the cutting mechanism. The first conveyor belt 19 is fixedly installed on the third frame 18 corresponding to the left end of the belt conveyor 1. The first drive motor 20 is connected to the rear left end of the first conveyor belt 19. A first conveyor belt tensioning device 21 is provided between the right end of the first conveyor belt 19 and the third frame 18. A left support 22 and a right support 23 are fixedly installed on the third frame 18 at intervals on the left and right sides corresponding to the front and rear sides of the first conveyor belt 19. Both the left and right supports 22 and 23 are U-shaped with their openings facing downwards. A strip-shaped support 24 with its right side curved downwards and upwards is slidably installed on the inner side of the lower part of the left support 22. The outer side of the right side of the strip support 24 is slidably installed together with the inner side of the lower part of the right support 23. A strip-shaped mounting groove 29 with its opening facing downwards is provided in the middle of the lower side of the strip support 24. Several pressure rollers 25 are rotatably installed in the strip mounting groove 29 at intervals. A second detector 26 for detecting the presence of material is provided on the lower right end of the strip support 24. A second straight hole is provided in the middle of the upper end of the left support 22 and the middle of the upper end of the right support 23. Each second straight hole is provided with a guide rod 27 whose lower end is fixedly installed together with the corresponding position on the upper side of the strip support 24. A compression spring 28 is provided on the outer side of each guide rod 27.

[0082] In the above technical solution, the lower side of the strip support 24, which is curved in a left-lower-right-upper shape, can form a material inlet space with the upper side of the first conveyor belt 19, which makes it easier for tongtu wood stems of different outer diameters to automatically and smoothly enter the straightening mechanism, reducing manual intervention and adjustment operations; under the action of friction between the tongtu wood stem and the first conveyor belt 19, the tongtu wood stem can move to the left along the first conveyor belt 19.

[0083] When the second detector 26 does not detect the presence of tongcao stems on the first conveyor belt 19, the belt conveyor 1 conveys the tongcao stems to the left. After the left end of the tongcao stem passes the left end of the belt conveyor 1 and enters the material inlet space, as the first conveyor belt 19 moves to the left, each pressure roller 25 can continuously squeeze the upper side of the tongcao stem, straighten the bent tongcao stem, and prevent the bent tongcao stem from being unable to enter the cutting space 15, so as to better cut it into segments and remove the tongcao core more completely from the tongcao stem segment 16.

[0084] Depending on the requirements, the first drive motor 20 can be a frequency converter motor, servo motor, or stepper motor, etc., to control the feeding speed of the hollowwood stem segment 16; the first conveyor belt tensioning device 21 is existing technology and can be ordered together with the first conveyor belt 19; in this embodiment, to increase the contact area between the pressure roller 25 and the hollowwood stem, the pressure roller 25 is a dumbbell-shaped pressure roller with thicker ends and thinner middle; the second detector 26 can be a proximity position sensor in the prior art, such as a laser position sensor, an infrared position sensor, or a capacitive position sensor, etc. In this embodiment, considering that there is a lot of dust at the core extraction site, the second detector 26 can be an ultrasonic position sensor.

[0085] With this configuration, the strip support 24 can slide up and down within the left support 22 and the right support 23. The spring preload of the compression spring 28 allows the pressure roller 25 to press more reliably against the upper side of the tongkao wood stem, thus straightening the bent tongkao wood stem more effectively. It can automatically straighten tongkao wood stems with a bend of up to 30°, avoiding manual screening, rejection, or straightening operations. This effectively improves the utilization rate of tongkao wood stem materials, greatly increases the processing speed of tongkao wood stems, and saves more operating time.

[0086] Example 5: As an optimization of the above embodiments, as shown in the appendix Figures 1 to 2 As shown in Figures 7 and 8, the feeding mechanism includes a fourth frame, a second conveyor belt 46, and a second drive motor 47. The lower side of the belt conveyor 1 is fixedly installed together with the upper rear part of the fourth frame, and the front end of the fourth frame is lower than the rear end.

[0087] The fourth frame includes a left upright plate 48, a right upright plate 49, and a transverse support rod 50. The left upright plate 48 and the right upright plate 49 are fixedly connected by several transverse support rods 50. The front of the left upright plate 48 and the front of the right upright plate 49 are provided with trapezoidal notches 51 that open upwards and have tubes running through them. Each trapezoidal notch 51 is fixedly installed with a guide plate 52 that is inclined in a front-high and rear-low shape.

[0088] In the above technical solution, the angle between the guide plate 52 and the ground can be 30°. In actual use, the angle between the guide plate and the ground can be adjusted according to the requirements.

[0089] Two rotating shafts 53 are rotatably installed between the left upright plate 48 and the right upright plate 49 at a vertical interval corresponding to the position behind the trapezoidal notch 51. At least two second conveyor belts 46 are provided between the two rotating shafts 53 at a horizontal interval, with the front lower and the rear higher. Several first partitions 54 are provided on the second conveyor belts 46 at intervals, and the distance between two adjacent first partitions 54 is exactly matched with the outer diameter of the tussah wood. A second drive motor 47 is fixedly installed on the left side of the upper rear end of the left upright plate 48. The output shaft of the second drive motor 47 is connected to the left end of the rotating shaft 53 located on the upper side.

[0090] In the above technical solution, the two trapezoidal notches 51 and their corresponding guide plates 52 can form a temporary storage space for materials. When the whole bundle of trachoma stems falls onto the guide plate 52, they can automatically spread out on the upper side of the guide plate 52 and roll down along the guide plate 52 to the bottom of the second conveyor belt 46, making it easier for the first partition 54 on the second conveyor belt 46 to pick up the single trachoma stems. The single trachoma stems are loaded onto the second conveyor belt 46 between the two adjacent first partitions 54. As the second conveyor belt 46 moves upward together, the trachoma stems are lifted to the upper end of the second conveyor belt and fall onto the upper right side of the belt conveyor 1, completing the trachoma stem loading operation.

[0091] The second drive motor 47 can be a frequency converter motor, servo motor, or stepper motor, etc. Its built-in controller can control the motor's movement and adjust its speed. The control signal can come from the second detector 26 of the straightening mechanism. When the second detector 26 detects a ploughed wood stem on the first conveyor belt 19, it can control the second drive motor 47 and the belt conveyor 1 to pause, stopping material transport. When the second detector 26 detects no ploughed wood stem on the first conveyor belt 19, it controls the second drive motor 47 and the belt conveyor 1 to start, continuing the transport of the ploughed wood stem. This achieves automatic feeding, eliminating the need for manual sorting of each stem, significantly reducing labor intensity and energy consumption, saving manpower, and effectively solving the cumbersome process of arranging ploughed wood stems in batches after harvest.

[0092] With this setup, all second conveyor belts 46 are mounted on two rotating shafts 53, sharing the same drive shaft for better synchronization. This prevents the partitions on the left second conveyor belt 46 from becoming misaligned with the first partition 54 on the right second conveyor belt 46, thus avoiding disruption to the feeding operation.

[0093] To better support the stems of the *Tetrapanax papyrifer* and prevent them from falling, three second conveyor belts 46 are provided between the two rotating shafts 53 at left and right intervals. Both rotating shafts 53 can be fixedly installed at corresponding positions on the left upright plate 48 and the right upright plate 49 via bearing seats, so that the rotating shafts 53 can rotate smoothly.

[0094] Example 6: As an optimization of the above embodiments, as shown in the appendix Figure 1 , 5As shown in Figures 7 and 8, the feeding mechanism includes a fifth frame 55, a housing 56, a third conveyor belt 57, a third drive motor 58, a second linear actuator 59, and a third detector 60. The fifth frame 55 is located behind the first frame 2. The housing 56 is fixedly installed on the inner side of the upper part of the fifth frame 55. The third conveyor belt 57 is rotatably installed inside the housing 56. Several second partitions 61 are spaced apart on the third conveyor belt 57. The third drive motor 58 is connected to the outer side of the left end of the drive shaft of the third conveyor belt 57. 8 is fixedly installed on the right side and the left side of the housing 56 respectively; the front middle of the housing 56 is provided with a feed port 62, which is exactly at the lower rear side of the guide plate 12; the lower middle of the housing 56 is provided with a discharge port, and a hopper door 63 is hinged to the lower side of the housing 56 corresponding to the discharge port position. The hopper door 63 is controlled to open and close by a second linear actuator 59 fixedly installed on the housing 56. At least two third detectors 60 are provided on the lower left and right sides of the hopper door 63 for detecting whether there are open wood stem segments 16 in the clamping mechanism.

[0095] In the above technical solution, two adjacent second partitions 61 can form a loading space for the tussock stem segment 16, which is used to transfer the tussock stem segment 16.

[0096] Depending on the requirements, the third drive motor 58 can be a frequency converter motor, servo motor, or stepper motor, etc., and its motor action and speed can be controlled by its built-in controller. The second linear actuator 59 can be a cylinder, hydraulic cylinder, or electric actuator as in the prior art, with the extended end being a piston rod. In this embodiment, it can be a cylinder; it can also be a rotary motor-gear rack mechanism, that is, the rotary motor drives the gear, so that the gear can drive the rack to move up and down. The third detector 60 can be a proximity position sensor as in the prior art, such as a laser position sensor, infrared position sensor, or capacitive position sensor, etc. In this embodiment, considering that there is a lot of dust at the through-groove coring operation site, the third detector 60 can be an ultrasonic position sensor. The opening and closing of the hopper door 63 can be controlled directly by the second linear actuator 59, or the opening and closing of the hopper door 63 can be controlled by the second linear actuator 59 and the parallelogram mechanism. The hopper door 63 can be a single door or a double door; in this embodiment, in order to make the falling position of the through-wood stem segments 16 more consistent, the hopper door 63 can be a front and rear double door.

[0097] During use, when the tussock stem segments 16 enter the feed inlet 62 along the guide plate 12, they are loaded into the tussock stem segment loading space and transported backward by the third conveyor belt 57. When the tussock stem segments 16 reach the discharge outlet, if the third detector 60 detects the presence of tussock stem segments 16 in the clamping mechanism, it controls the second actuator to maintain its original state, keeping the hopper door 63 closed. If the third detector 60 detects no tussock stem segments 16 in the clamping mechanism, it controls the second actuator to open the hopper door 63, allowing the tussock stem segments 16 to fall downward, and then immediately closes the hopper door 63. This process continues until the third detector 60 detects no tussock stem segments 16 in the clamping mechanism again, at which point the hopper door 63 is opened again. This process is repeated to achieve automatic feeding of the tussock stem segments 16.

[0098] The cutting speed of the cutting mechanism and the conveying speed of the third conveyor belt 57 to the core extraction speed of the tongcao (Tetrapanax papyriferus) stem segments 16 are determined by the core extraction speed of the push assembly. The cutting speed of the cutting mechanism can be controlled by the material conveying speed of the belt conveyor or the first conveyor belt 19. In actual use, the conveying speed of the tongcao stem segments 16 on the third conveyor belt 57 can be controlled by adjusting the speed of the third drive motor 58, and the feeding speed of the tongcao stems on the first conveyor belt 19 can be controlled by adjusting the speed of the first drive motor 20, thereby controlling the cutting speed of the cutting mechanism. This ensures that the core extraction speed of the push assembly is matched with the feeding speed of the tongcao stems, the cutting speed of the cutting mechanism, and the conveying speed of the tongcao stem segments 16, enabling the continuous completion of all processes in the core extraction operation, avoiding material accumulation and backlog, and preventing the normal operation of the device.

[0099] When the hopper door 63 is closed, if any more pierced wood stem segments 16 are delivered to the discharge port, the third drive motor 58 and the first drive motor 20 can be stopped, suspending the pierced wood stem cutting and conveying operations until the third detector 60 detects that no pierced wood stem segments 16 are present in the clamping mechanism. Then, the hopper door 63 is reopened to unload the pierced wood stem segments 16. The gap between the lower end of the second partition 61 and the housing 56 is small, ranging from one to five millimeters, to allow the second partition 61 to move the pierced wood stem segments 16.

[0100] To improve the efficiency of core extraction from *Tetrapanax papyrifer*, multiple feeding mechanisms can be connected in series. Each feeding mechanism has a clamping component on its underside, and each clamping component has a pushing component on its right side. The series connection of multiple feeding mechanisms can be achieved in the following way:

[0101] A through-hole material transfer port can be opened at the rear end of the housing 56 of the first feeding mechanism. A discharge connecting guide plate 84 can be hinged to the housing 56 at the material transfer port by means of a damping positioning hinge in the prior art. A quick clamp, latch or door latch can be provided between the upper end of the discharge connecting guide plate 84 and the corresponding position of the rear end of the housing to close the discharge connecting guide plate 84 and seal the material transfer port, so that the detached wood stem segment 16 can only be circulated and transported within the first feeding mechanism.

[0102] When multiple feeding mechanisms are connected in series, the discharge connecting guide plate 84 at the rear end of the first feeding mechanism can be opened, tilted and unfolded in a front-high, rear-low orientation, and aligned with the inlet 62 at the front end of the second feeding mechanism. This allows the travertine stem segments 16 in the first feeding mechanism to pass through the feed inlet and fall onto the discharge connecting guide plate 84, then slide along the discharge connecting guide plate 84 towards the inlet 62 of the second feeding mechanism. Figure 8 As shown, the subsequent core extraction process of the pith is completed. In this embodiment, the tilt angle of the discharge connecting guide plate 84 can be 30° (the angle with the ground).

[0103] When multiple feeding mechanisms are used in series, the feeding speed of the pierced wood stems on the belt conveyor or the first conveyor belt 19 should be increased accordingly to speed up the cutting speed of the cutting mechanism. At the same time, the conveying speed of the pierced wood stem segments 16 on the third conveyor belt 57 should be increased so that excess pierced wood stem segments 16 can fall through the material inlet onto the discharge connecting guide plate 84 and slide along the discharge connecting guide plate 84 to the feed inlet 62 of the next feeding mechanism, thus supplying material for the next set of clamping components and pushing components.

[0104] By adding a core-removing mechanism and having multiple core-removing mechanisms work together, the efficiency of core-removing operations of Tetrapanax papyriferus can be greatly improved, enabling batch core-removing operations of Tetrapanax papyriferus, which is more suitable for batch core-removing in Tetrapanax papyriferus centralized ripening machines.

[0105] Example 7: As an optimization of the above embodiments, as shown in the appendix Figure 1 , 6As shown in Figure 8, the clamping assembly includes a tray 64, a third linear actuator 65, a clamp guide rail 66, a front clamp 67, a rear clamp 68, a V-shaped chuck 69, and a fourth linear actuator 70. A tray 64 for holding the defoliated stem segments 16 is provided on the second frame 17 corresponding to the discharge port of the feeding mechanism. Two third linear actuators 65 are fixedly installed at intervals on the rear side of the tray 64. The lower rear side of the third linear actuators 65 is fixedly installed together with the corresponding position on the upper side of the second frame 17. The second frame 17 is positioned to the left and right of the tray 64. Two clamping guide rails 66 are symmetrically arranged on the 7. A front clamp 67 and a rear clamp 68 are installed on the two clamping guide rails 66 at intervals on the left and right sides via sliders. Several V-shaped teeth 69 with opposite openings are fixedly installed on the rear side of the front clamp 67 and the front side of the rear clamp 68 at intervals on the left and right sides. A clamping space for the wood stem segment 16 can be formed between the two sets of V-shaped teeth 69. A fourth linear actuator 70 is fixedly installed on the middle of the front side of the front clamp 67 and the middle of the rear side of the rear clamp 68. The end of each fourth linear actuator 70 away from the V-shaped teeth 69 is fixedly installed on the second frame 17 by a bracket.

[0106] Depending on the requirements, the clamp guide rail 66 can be a roller linear guide, cylindrical linear guide, or ball linear guide in the prior art. The clamp guide rail 66 is a standard part with a built-in slider. In this embodiment, a cylindrical linear guide is used. The clamp guide rail 66 can also be implemented by a slide rod and a linear bearing fitted on the outside of the slide rod. The third linear actuator 65 and the fourth linear actuator 70 can be a cylinder, hydraulic cylinder, or electric actuator in the prior art, with a piston rod extending out. In this embodiment, it can be a cylinder; it can also be a rotary motor-gear rack mechanism, that is, the rotary motor drives the gear, so that the gear can drive the rack to move up and down.

[0107] With this configuration, the tray 64 can catch the stem segment 16 of the *Tetrapanax papyrifer*, preventing it from falling to the ground; the gap between the V-shaped teeth 69 can improve the detection accuracy of the third detector 60, reduce the false detection rate, automatically center the *Tetrapanax papyrifer* pith core and the frustum-shaped top 74, effectively reduce the coaxiality error between the *Tetrapanax papyrifer* pith core and the frustum-shaped top 74, and significantly improve the integrity of the *Tetrapanax papyrifer* core. Compared with manual core extraction by farmers, this can greatly reduce the damage and waste of the *Tetrapanax papyrifer* core.

[0108] During operation, when the third detector 60 detects that there is no pierced wood stem segment 16 on the tray 64, it controls the second linear actuator 59 and the fourth linear actuator 70 to open the hopper door 63, allowing the pierced wood stem segment 16 to fall onto the tray 64, and then closes the hopper door 63. The fourth linear actuator 70 can operate simultaneously with the second linear actuator 59, but the extension speed of the fourth linear actuator 70 is slower than that of the second linear actuator 59; alternatively, a delay control can be set so that the fourth linear actuator 70 operates after the second linear actuator 59.

[0109] The fourth linear actuator 70 operates, controlling the front clamp 67 and the rear clamp 68 to move towards each other, so that the two sets of V-shaped teeth 69 can clamp the tongcao stem segment 16, completing the core removal operation; after the core removal operation is completed, the fourth linear actuator 70 operates again, controlling the front clamp 67 and the rear clamp 68 to move away from each other, releasing the outer skin waste of the tongcao stem segment (hereinafter referred to as waste); at the same time, it controls the third linear actuator 65 to operate, so that the pallet 64 moves backward until the front end of the pallet 64 moves to the underside of the rear clamp 68, so that the waste falls downward. The waste can be collected in a waste bin, or it can fall on the ground and be cleaned up manually at regular intervals.

[0110] Example 8: As an optimization of the above embodiments, as shown in the appendix Figure 1 , 6 As shown in Figure 8, the pushing assembly includes a sixth frame 71, a fifth linear actuator 72, a through rod 73, a frustum-shaped top 74, and a T-shaped guide seat 75. The sixth frame 71 is fixedly installed on the second frame 17 corresponding to the right side of the clamping assembly. The fifth linear actuator 72 is fixedly installed on the upper side of the sixth frame 71. The left inner side of the fifth linear actuator 72 is provided with a left extension end 76 that can extend to the left. The through rod 73 is fixedly installed on the left end of the left extension end 76. The frustum-shaped top 74, which is larger on the left and smaller on the right, is detachably installed on the outer side of the left end of the through rod 73. The T-shaped guide seat 75 is fitted on the outer side of the through rod 73 corresponding to the right side of the frustum-shaped top 74. The lower end of the T-shaped guide seat 75 is fixedly installed together with the corresponding position on the upper side of the second frame 17.

[0111] In the above technical solution, the fifth linear actuator 72 can be a cylinder, hydraulic cylinder, or electric actuator as in the prior art, with the extended end being a piston rod. In this embodiment, it can be a cylinder; it can also be a rotary motor-gear and rack mechanism, that is, the rotary motor drives the gear, so that the gear can drive the rack to move up and down. The axis of the extended end of the fifth linear actuator 72 is aligned with the center of the clamping space of the Tetrapanax papyrifer stem segment 16 to ensure that the Tetrapanax papyrifer core can be completely removed.

[0112] A linear bearing or a self-lubricating bushing can be installed between the through rod 73 and the T-shaped guide seat 75 to reduce the friction between the through rod 73 and the T-shaped guide seat 75, reduce the wear of the through rod 73, and save costs.

[0113] The outer diameter of the frustum-shaped tip 74 can be set according to the outer diameter range of the pith core. Therefore, before cutting the pith stem, the pith stems of different thicknesses can be simply graded, bundled and packaged by visual inspection, and cut in batches. The frustum-shaped tip 74 with different outer diameters can be replaced accordingly, so that the outer diameter of the frustum-shaped tip 74 is more compatible with the outer diameter of the pith core in the pith stem segment 16, and the pith core is removed more cleanly and completely.

[0114] A time delay can be set so that the fifth linear actuator 72 operates after the fourth linear actuator 70. When the fifth linear actuator 72 operates, the through rod 73 moves to the left, and the core of the tongcao (a type of medicinal herb) in the tongcao stem segment 16 is squeezed out through the conical platform top and ejected to the ground or cargo box on the left side of the core extraction mechanism.

[0115] Example 9: As an optimization of the above embodiments, as shown in the appendix Figure 1 , 6 As shown in Figure 8, the core-taking mechanism also includes a material collection and processing system located at the lower part of the second frame 17. The material collection and processing system includes a waste discharge conveyor belt 77, a product discharge transmission belt 78, and a box-shaped product collection baffle 79. The waste discharge conveyor belt 77 is inclined in a front-low-rear-high configuration on the lower inner side of the second frame 17. The product discharge transmission belt 78 is inclined in a front-low-rear-high configuration on the left side of the second frame 17. The drive shaft of the product discharge transmission belt 78 is fixedly installed together with the drive shaft of the waste discharge conveyor belt 77. The drive shaft of the product discharge conveyor belt is connected to the output shaft of the third drive motor 58 via a chain drive 80. A box-shaped product collection baffle 79 with an opening facing downwards is fixedly installed in the middle of the left side of the second frame 17. A material passage hole 81 with internal and external penetration is provided on the right side plate of the box-shaped product collection baffle 79 corresponding to the left end of the clamping component.

[0116] In the above technical solution, when the waste husk of the tongcao wood falls onto the waste discharge conveyor belt 77, the waste can be transported to the rear of the device for collection and centralized processing; the tongcao core that is pushed out passes through the material passage hole 81, is ejected into the box-shaped product collection baffle 79, and then falls onto the product discharge conveyor belt 78, which can be transported to the rear of the device for centralized collection, keeping the frame of the device clean.

[0117] With this configuration, the third drive motor 58 can simultaneously drive the third conveyor belt 57, the waste discharge conveyor belt 77, and the product discharge conveyor belt 78 via the chain drive 80, enabling the three to move synchronously, thereby saving energy costs and motor procurement costs.

[0118] When multiple coring mechanisms are connected in series, they can form a multi-module collaborative operation, which can improve the efficiency of coring operations from pith and save operation time. When multiple coring mechanisms are connected in series, the front of the waste discharge conveyor belt 77 of the later coring mechanism is located directly below the rear of the waste discharge conveyor belt 77 of the previous coring mechanism, and the front of the product discharge conveyor belt 78 of the later coring mechanism is located directly below the rear of the product discharge conveyor belt 78 of the previous coring mechanism.

[0119] The process flow for core extraction from *Hylocereus undatus* in this utility model is as follows: feeding → loading → shaping → pressing → cutting → segment transfer → opening / closing the hopper door 63 → clamping → core extraction → loosening the clamp, and so on in a continuous cycle.

[0120] The second detector 26 detects whether there are any untapped wood stems on the upper right side of the first conveyor belt 19. If untapped wood stems are detected on the upper right side of the first conveyor belt 19, the second drive motor 47 is shut down, and feeding is paused; if no untapped wood stems are detected on the upper right side of the first conveyor belt 19, the second drive motor 47 is restarted, and feeding continues. In actual use, the speed of each drive motor can be comprehensively adjusted according to the core-removing operation speed of the push assembly, so that the material (untapped wood) supply speed in this device matches the core-removing operation speed of the push assembly, thereby continuously completing the above process flow without material interruption or material congestion.

[0121] The first detector 11 detects whether there is a sapwood stem to determine whether the left end of the sapwood stem has reached the predetermined position (predetermined length). If the sapwood stem is detected, it means that the sapwood stem has reached the predetermined position, and the first linear actuator 8 is activated. If the sapwood stem is not detected, the first drive motor 20 drives the first conveyor belt 19 to continue to transport the sapwood stem to the left.

[0122] The third detector 60 detects whether there is a segment of tongcao (a type of medicinal herb) 16 on the pallet 64. If the segment of tongcao 16 is detected, the second linear actuator 59 remains in its original state, and the hopper door 63 remains closed. If the segment of tongcao 16 is not detected, the second linear actuator 59 is activated to open the hopper door 63, allowing the segment of tongcao 16 to fall onto the pallet 64. Then, the two fourth linear actuators 70 are activated to clamp and fix the segment of tongcao 16 using two sets of V-shaped teeth 69. Then, the fifth linear actuator 72 is activated to squeeze the tongcao core out of the segment of tongcao 16. Then, the two fourth linear actuators 70 are activated again to return the extended end to its original position, allowing the two sets of V-shaped teeth 69 to release the waste material from the outer skin of the segment of tongcao 16. Finally, the third linear actuator 65 is activated to pull the pallet 64 backward, releasing the waste material from the outer skin of the segment of tongcao 16, and then the pallet 64 is reset.

[0123] The delay control technology used in the above process is existing technology and will not be described in detail here.

[0124] The specific process flow is as follows:

[0125] Feeding: When the second detector 26 detects that there are no tongtu wood stems on the first conveyor belt 19, the second drive motor 47 is started to make the second conveyor belt 46 run; the herb farmers scatter the whole bundle of tongtu wood stems onto the guide plate 52, and the tongtu wood stems roll down along the guide plate 52 to the bottom of the second conveyor belt 46.

[0126] Feeding: Until a stalk of styrax is lifted upward by the first partition 54 and loaded onto the second conveyor belt 46 between two adjacent first partitions 54, the stalk of styrax moves upward together with the second conveyor belt 46, lifting the stalk of styrax to the upper end of the second conveyor belt and falling onto the upper right side of the belt conveyor 1.

[0127] Straightening: After the belt conveyor 1 transfers the tracheid to the left onto the first conveyor belt 19, the second detector 26 detects the presence of the tracheid on the first conveyor belt 19, at which point feeding can be paused; after the left end of the tracheid enters the material inlet space, as the first conveyor belt 19 moves to the left, the pressure roller 25 can continuously squeeze the tracheid from above, straightening the bent tracheid.

[0128] Compressing and Cutting: The stalk of the tonghu wood passes through the cutting space 15 to the left and continues to move to the left until the first detector 11 detects that the left end of the tonghu wood stalk is in place. The first linear actuator 8 is activated, moving the cutting blade 7, the upper pressure plate 32, and the connecting rod 45 downwards. Under the elastic restoring force of the material pre-tension spring, the upper pressure plate 32 first reaches the upper side of the tonghu wood stalk, pressing and fixing the tonghu wood stalk between the upper arc-shaped notch 39 and the lower arc-shaped notch 37. At this time, the cutting base plate 4 can move to the left along with the tonghu wood stalk, so that the cutting blade 7 and the tonghu wood stalk can be in a relatively stationary state. The extended end of the first linear actuator 8 continues to push the cutting blade 7 downwards. When the lower end of the cutting blade 7 just touches the tonghu wood stalk... When the upper side is in position, the connecting rod 45 presses the flipping control handle 43 downward into place, causing the L-shaped hook rod 42 to flip backward from the vertical state to the horizontal state, temporarily supporting the left side of the tongtuo wood stem. After the cutting blade 7 cuts the tongtuo wood stem downward, the extended end of the first linear actuator 8 returns to its original position upward. The cutting blade 7 first leaves the tongtuo wood. During this process, the cut tongtuo wood stem segment 16 is still supported by the horizontal L-shaped hook rod 42. Then the connecting rod 45 leaves the flipping control handle 43. Under the weight of the L-shaped hook rod 42 and the tongtuo wood stem segment 16, the L-shaped hook rod 42 flips downward to return to the vertical state. During this process, the tongtuo wood stem segment 16 is released, causing it to fall onto the guide plate 12.

[0129] Material transfer: The 16 segments of trachomatis stem slide down along the guide plate 12 into the feed inlet 62. The second partition 61 lifts the 16 segments of trachomatis stem upward and loads them into the loading space of the 16 segments of trachomatis stem. They are then transferred backward along the third conveyor belt 57 until the trachomatis segments reach the discharge port.

[0130] Open / close hopper door 63: When the third detector 60 does not detect the tangled wood stem segment 16 on the pallet 64, the second linear actuator 59 is activated to open the hopper door 63, release the tangled wood stem segment 16, and then the extended end of the second linear actuator 59 is controlled to return to its original position to close the hopper door 63.

[0131] Clamping: After the tussock stem segment 16 falls onto the support plate 64, the two fourth linear actuators 70 are activated to clamp and fix the tussock stem segment 16 through two sets of V-shaped teeth 69.

[0132] Core Removal: Activate the fifth linear actuator 72, causing its extended end to move the through rod 73 to the left. The frustum-shaped top 74 pushes the core of the pith out from the stem of the pith tree to the left, causing the core to be ejected into the box-shaped product collection baffle 79. After falling onto the product discharge conveyor belt 78, it is collected and processed. At the same time, control the extended end of the fifth linear actuator 72 to return to its original position, pulling the frustum-shaped top 74 out from the stem of the pith tree to the right.

[0133] Loosening the clamp: Reactivate the two fourth linear actuators 70 to return the extended ends of the fourth linear actuators 70 to their reset positions, causing the two sets of V-shaped locking teeth 69 to loosen the waste material from the outer bark of the tung oil stem segments, allowing the waste material to fall back onto the pallet 64; activate the third linear actuator 65 to pull the pallet 64 backward, releasing the waste material from the outer bark of the tung oil stem segments, and then control the extended ends of the third linear actuator 65 to return to their reset positions, allowing the pallet 64 to return to its original position; after the waste material falls onto the waste discharge conveyor belt 77, it is collected and processed.

[0134] By repeating the above process, uninterrupted fully automated operation can be achieved.

[0135] Depending on the requirements, a control system can also be set up. This control system is electrically connected to the drive motors of the first detector 11, the second detector 26, the third detector 60, the first linear actuator 8, the second linear actuator 59, the third linear actuator 65, the fourth linear actuator 70, the fifth linear actuator 72, the first drive motor 20, the second drive motor 47, the third drive motor 58, and the belt conveyor 1. When the first to fifth linear actuators are pneumatic or hydraulic cylinders, the control system can control each linear actuator via a matching solenoid valve; when the first to fifth linear actuators are electric actuators, they can be controlled via a matching controller. The drive motors of the first drive motor 20, the second drive motor 47, the third drive motor 58, and the belt conveyor 1 can all be frequency converter motors, servo motors, or stepper motors, etc., and are equipped with controllers so that the control system can control each drive motor accordingly. The control system can be implemented based on existing technologies such as single-chip microcomputers or PLCs. The control system includes a delay circuit to achieve delayed control according to the signals from each detector, thus orderly completing each process flow of the pith coring operation.

[0136] This utility model has a reasonable and compact structure, is convenient to use, and simple to operate. It can monitor the material status through a detector; when material jamming occurs, it can control the corresponding drive motor to reverse, causing the corresponding conveyor belt to reverse and automatically expel foreign objects, avoiding manual material cleaning and reducing personal safety hazards. The feeding mechanism, straightening mechanism, cutting mechanism, conveying mechanism, and core-taking mechanism are all modularly designed, making assembly simple and convenient. Replacement of vulnerable parts is even simpler and easier to operate. Daily maintenance can be completed without professional training. It has low energy consumption and can be used in fields with temporary power supplies or small generators, resulting in low operating costs and a wide range of applications. The conveying mechanism and core-taking mechanism can be assembled to form a feeding and core-taking module (such as...). Figure 8 As shown, using multiple feeding and core-collecting modules in series can greatly improve the core-collecting efficiency of pith paper and is more suitable for use during the harvest season; using a single feeding and core-collecting module is more suitable for small-scale processing, and the equipment capacity can be flexibly adjusted according to demand to avoid resource waste.

[0137] This device enables automated batch processing of Tetrapanax papyriferus, facilitating core extraction and increasing processing efficiency. During peak harvest season, it can quickly process large quantities of Tetrapanax papyriferus. It precisely controls the cutting and core extraction process, resulting in a high percentage of intact cores and minimal woody residue, thus improving the selling price and negotiating power of the medicinal material.

[0138] The above technical features constitute various embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A modular automatic core-retrieving device for pith from wood, characterized in that... The device includes a feeding mechanism, a cutting mechanism, a feeding mechanism, and a core-removing mechanism. A belt conveyor is located at the upper rear of the feeding mechanism, with its left end positioned to the left of the feeding mechanism. The belt conveyor transports a single *Tetrapanax papyrifer* stem from right to left to the cutting mechanism, which automatically cuts the entire stem into several segments according to a set length. A feeding mechanism is located behind the cutting mechanism to continuously transport the stem segments, with its inlet aligned with the outlet of the cutting mechanism. A core-removing mechanism is located below the feeding mechanism to remove the core from the stem segments. This core-removing mechanism includes a second frame, a clamping assembly, and a pushing assembly. The second frame is fixedly installed below the feeding mechanism, and a clamping mechanism for clamping the stem segments is located on the second frame corresponding to the outlet of the feeding mechanism. A pushing assembly for squeezing the core out of the stem segments is located to the right of the clamping mechanism. The cutting mechanism includes a first frame, linear guides, a cutting base plate, a U-shaped knife holder, a cutting blade, a first linear actuator, a support rod, a sensor mounting base, a first detector, and a guide plate. The first frame is located on the left side of the belt conveyor. Two linear guides are spaced apart on the upper side of the first frame. The cutting base plate is fixedly mounted on the upper right side of each of the two linear guides via sliders. Two knife holder return springs are spaced apart between the right end of the cutting base plate and the left end of the belt conveyor. A U-shaped knife holder is fixedly mounted in the middle of the upper part of the cutting base plate. A cutting blade that can move up and down is slidably mounted inside the U-shaped knife holder. A material discharge port with an opening facing left and penetrating vertically is provided on the cutting base plate below the cutting blade. A first straight hole penetrating vertically is provided in the middle of the upper end of the U-shaped knife holder. A first linear actuator is fixedly installed on the upper side of the blade holder. The lower inner side of the first linear actuator has a lower extension end. The lower extension end passes through the first straight hole and is fixedly installed together with the upper middle part of the cutting blade. The lower end of the cutting blade, the lower inner side of the U-shaped blade holder, and the upper upper part of the cutting base plate form a cutting space. The cutting space is exactly aligned with the discharge port at the middle left end of the belt conveyor. Two support rods are fixedly installed at a distance from front to back on the upper left side of the U-shaped blade holder. A sensor mounting base is slidably installed between the two support rods. The lower middle part of the sensor mounting base has a first detector that can detect whether the left end of the pierced wood stem has reached the predetermined position. A guide plate with a front-high and rear-low orientation is fixedly installed on the upper inner side of the first frame. The lower rear side of the guide plate is exactly abutted against the feed port at the front end of the feeding mechanism.

2. The modular automatic core-removing device for pith extraction according to claim 1, characterized in that, The cutting mechanism also includes a material pre-compression assembly and a material tilting bracket; The right side of the U-shaped blade holder is equipped with a material pre-compression assembly, which includes an anti-slip table, guide rods, an upper pressure plate, an upper support, a T-shaped tie rod, a tension spring fixing rod, and a material pre-compression tension spring. An anti-slip table is located on the cutting base plate corresponding to the right side of the material inlet. The upper center of the anti-slip table has an upward-opening, horizontally-through lower arc-shaped notch, within which are several lower anti-slip teeth. Two guide rods are fixedly installed on the cutting base plate corresponding to the front and rear sides of the center of the anti-slip table, respectively. An upper pressure plate is slidably installed between the lower parts of the two guide rods, located below the cutting blade. The lower side of the upper pressure plate corresponding to the lower arc-shaped notch has a downward-opening, horizontally-through opening. The upper arc-shaped notch contains several upper anti-slip teeth; an upper support is fixedly installed between the upper ends of the two guide slide rods, and the left side of the upper support is fixedly installed together with the lower outer side of the lower extension end; two T-shaped tie rod holes are symmetrically arranged on the upper support corresponding to the position between the two guide slide rods, and a T-shaped tie rod is fitted in each T-shaped tie rod hole, the lower end of which is fixedly installed together with the corresponding position on the upper side of the upper pressure plate; tension spring fixing rods are fixedly installed in the middle of the front side and the middle of the rear side of the upper pressure plate, and a material pre-compression tension spring is provided between each tension spring fixing rod and the corresponding position on the upper side of the cutting base plate; A material tilting bracket is fixedly installed on the cutting base plate corresponding to the lower front position of the U-shaped knife holder. The material tilting bracket includes a fixed sleeve, a horizontal bar, an L-shaped hook rod, a tilting control handle, a connecting rod fixing seat, and a connecting rod. A fixed sleeve with an axial through hole in the middle is fixedly installed on the cutting base plate corresponding to the lower front position of the U-shaped knife holder. The inner side of the fixed sleeve is fitted together with the outer side of the right part of the horizontal bar. Several L-shaped hook rods are fixedly installed at intervals from the middle to the lower left side of the horizontal bar. A tilting control handle is fixedly installed on the outer side of the right end of the horizontal bar. The front part of the tilting control handle is curved in a front-upward and rear-downward direction. A connecting rod fixing seat is fixedly installed on the front side of the upper support. The left end of the connecting rod fixing seat has a third straight hole that runs vertically through it. A connecting rod is fixedly installed in the third straight hole. After the connecting rod moves downward, its lower end can press down on the corresponding position on the upper front end of the tilting control handle, so that the horizontal bar drives the L-shaped hook rod to tilt backward and upward to a horizontal position, catching the cut wood stem segment.

3. The modular automatic core-removing device for *Tetracentron sinense* according to claim 1 or 2, characterized in that, A straightening mechanism is provided between the belt conveyor and the cutting mechanism to straighten the bent travertine logs; The orthopedic mechanism includes a third frame, a first conveyor belt, a first drive motor, a first conveyor belt tensioning device, a left support, a right support, a strip support, a pressure roller, a second detector, a guide rod, and a compression spring. A third frame is provided between the belt conveyor and the cutting mechanism. A first conveyor belt is fixedly installed on the third frame corresponding to the left end of the belt conveyor. A first drive motor is driven to the rear left end of the first conveyor belt. A first conveyor belt tensioning device is provided between the right end of the first conveyor belt and the third frame. Left and right supports are fixedly installed at intervals on the third frame corresponding to the front and rear sides of the first conveyor belt. Both the left and right supports are... The support has a U-shaped opening facing downwards. A strip-shaped support with a right-side curved shape (left-lower-right-upper) is slidably mounted on the inner side of the lower part of the left support. The outer side of the right side of the strip-shaped support is slidably mounted to the inner side of the lower part of the right support. A downward-opening strip-shaped mounting groove is provided in the middle of the lower side of the strip-shaped support, and several pressure rollers are rotatably mounted in the groove at intervals. A second detector for detecting the presence of material is provided on the lower right end of the strip-shaped support. Second through-holes are provided in the middle of the upper ends of the left and right supports. Each second through-hole contains a guide rod whose lower end is fixedly mounted to the corresponding position on the upper side of the strip-shaped support. A compression spring is provided on the outer side of each guide rod.

4. The modular automatic core-removing device for *Pterocarya stenoptera* according to claim 1 or 2, characterized in that, The feeding mechanism includes a fourth frame, a second conveyor belt, and a second drive motor. The lower side of the belt conveyor is fixedly installed together with the upper rear part of the fourth frame. The front end of the fourth frame is lower than the rear end. The fourth frame includes a left vertical plate, a right vertical plate, and transverse support rods. The left vertical plate and the right vertical plate are fixedly connected by several transverse support rods. The front of the left vertical plate and the front of the right vertical plate are provided with trapezoidal notches that open upwards and allow the left and right tubes to pass through. Each trapezoidal notch is fixedly installed with a guide plate that is inclined in a front-high and back-low shape. Two rotating shafts are rotatably installed between the left and right upright plates at intervals on the rear side of the trapezoidal notch. At least two second conveyor belts are arranged at intervals on the left and right sides of the two rotating shafts, with the front lower and the rear higher. Several first partitions are spaced apart on the second conveyor belts, and the distance between two adjacent first partitions is exactly matched with the outer diameter of the tussah wood. A second drive motor is fixedly installed on the left side of the upper rear end of the left upright plate. The output shaft of the second drive motor is connected to the left end of the rotating shaft located on the upper side.

5. The modular automatic core-removing device for pith extraction according to claim 3, characterized in that, The feeding mechanism includes a fourth frame, a second conveyor belt, and a second drive motor. The lower side of the belt conveyor is fixedly installed together with the upper rear part of the fourth frame. The front end of the fourth frame is lower than the rear end. The fourth frame includes a left vertical plate, a right vertical plate, and transverse support rods. The left vertical plate and the right vertical plate are fixedly connected by several transverse support rods. The front of the left vertical plate and the front of the right vertical plate are provided with trapezoidal notches that open upwards and allow the left and right tubes to pass through. Each trapezoidal notch is fixedly installed with a guide plate that is inclined in a front-high and back-low shape. Two rotating shafts are rotatably installed between the left and right upright plates at intervals on the rear side of the trapezoidal notch. At least two second conveyor belts are arranged at intervals on the left and right sides of the two rotating shafts, with the front lower and the rear higher. Several first partitions are spaced apart on the second conveyor belts, and the distance between two adjacent first partitions is exactly matched with the outer diameter of the tussah wood. A second drive motor is fixedly installed on the left side of the upper rear end of the left upright plate. The output shaft of the second drive motor is connected to the left end of the rotating shaft located on the upper side.

6. The modular automatic core-removing device for *Tetracentron sinense* according to claim 1, 2, or 5, characterized in that, The feeding mechanism includes a fifth frame, a housing, a third conveyor belt, a third drive motor, a second linear actuator, and a third detector. The fifth frame is located behind the first frame. The housing is fixedly installed on the upper inner side of the fifth frame. The third conveyor belt is rotatably installed inside the housing. Several second partitions are spaced on the third conveyor belt. The third drive motor is connected to the outer side of the left end of the third conveyor belt drive shaft. The right side of the third drive motor is fixedly installed together with the corresponding position on the left side of the housing. The inlet is located in the middle of the front end of the housing, which is exactly at the lower rear side of the guide plate. The outlet is located in the middle of the lower side of the housing. A hopper door is hinged to the lower side of the housing corresponding to the outlet position. The hopper door is controlled to open and close by the second linear actuator fixedly installed on the housing. At least two third detectors are spaced on the left and right sides of the lower side of the hopper door to detect whether there are any open wood stem segments in the clamping mechanism. Or / and, the clamping assembly includes a tray, a third linear actuator, a clamping guide rail, a front clamp, a rear clamp, V-shaped teeth, and a fourth linear actuator. A tray for holding the detached wood stem segments is provided on the second frame corresponding to the discharge port of the feeding mechanism. Two third linear actuators are fixedly installed at intervals on the rear side of the tray. The lower rear side of the third linear actuator is fixedly installed together with the upper side of the second frame at the corresponding position. Two clamping guide rails are symmetrically provided on the second frame corresponding to the left and right sides of the tray. The front clamp and the rear clamp are installed at intervals on the two clamping guide rails through sliders. Several V-shaped teeth with opposite openings are fixedly installed at intervals on the rear side of the front clamp and the front side of the rear clamp. A clamping space for the detached wood stem segments can be formed between the two sets of V-shaped teeth. A fourth linear actuator is fixedly installed in the middle of the front side of the front clamp and the middle of the rear side of the rear clamp. The end of each fourth linear actuator away from the V-shaped teeth is fixedly installed on the second frame through a bracket. Or / and, the jacking assembly includes a sixth frame, a fifth linear actuator, a through rod, a frustum-shaped mandrel, and a T-shaped guide seat. The sixth frame is fixedly installed on the second frame corresponding to the right side of the clamping assembly. The fifth linear actuator is fixedly installed on the upper side of the sixth frame. The inner left side of the fifth linear actuator has a left extension end that can extend to the left. The left end of the left extension end is fixedly installed with a through rod. The outer left end of the through rod is detachably installed with a frustum-shaped mandrel that is larger on the left and smaller on the right. The outer side of the through rod corresponding to the right side of the frustum-shaped mandrel is fitted with a T-shaped guide seat. The lower end of the T-shaped guide seat is fixedly installed together with the corresponding position on the upper side of the second frame.

7. The modular automatic core-removing device for loose wood according to claim 3, characterized in that, The feeding mechanism includes a fifth frame, a housing, a third conveyor belt, a third drive motor, a second linear actuator, and a third detector. The fifth frame is located behind the first frame. The housing is fixedly installed on the upper inner side of the fifth frame. The third conveyor belt is rotatably installed inside the housing. Several second partitions are spaced on the third conveyor belt. The third drive motor is connected to the outer side of the left end of the third conveyor belt drive shaft. The right side of the third drive motor is fixedly installed together with the corresponding position on the left side of the housing. The inlet is located in the middle of the front end of the housing, which is exactly at the lower rear side of the guide plate. The outlet is located in the middle of the lower side of the housing. A hopper door is hinged to the lower side of the housing corresponding to the outlet position. The hopper door is controlled to open and close by the second linear actuator fixedly installed on the housing. At least two third detectors are spaced on the left and right sides of the lower side of the hopper door to detect whether there are any open wood stem segments in the clamping mechanism. Or / and, the clamping assembly includes a tray, a third linear actuator, a clamping guide rail, a front clamp, a rear clamp, V-shaped teeth, and a fourth linear actuator. A tray for holding the detached wood stem segments is provided on the second frame corresponding to the discharge port of the feeding mechanism. Two third linear actuators are fixedly installed at intervals on the rear side of the tray. The lower rear side of the third linear actuator is fixedly installed together with the upper side of the second frame at the corresponding position. Two clamping guide rails are symmetrically provided on the second frame corresponding to the left and right sides of the tray. The front clamp and the rear clamp are installed at intervals on the two clamping guide rails through sliders. Several V-shaped teeth with opposite openings are fixedly installed at intervals on the rear side of the front clamp and the front side of the rear clamp. A clamping space for the detached wood stem segments can be formed between the two sets of V-shaped teeth. A fourth linear actuator is fixedly installed in the middle of the front side of the front clamp and the middle of the rear side of the rear clamp. The end of each fourth linear actuator away from the V-shaped teeth is fixedly installed on the second frame through a bracket. Or / and, the jacking assembly includes a sixth frame, a fifth linear actuator, a through rod, a frustum-shaped mandrel, and a T-shaped guide seat. The sixth frame is fixedly installed on the second frame corresponding to the right side of the clamping assembly. The fifth linear actuator is fixedly installed on the upper side of the sixth frame. The inner left side of the fifth linear actuator has a left extension end that can extend to the left. The left end of the left extension end is fixedly installed with a through rod. The outer left end of the through rod is detachably installed with a frustum-shaped mandrel that is larger on the left and smaller on the right. The outer side of the through rod corresponding to the right side of the frustum-shaped mandrel is fitted with a T-shaped guide seat. The lower end of the T-shaped guide seat is fixedly installed together with the corresponding position on the upper side of the second frame.

8. The modular automatic core-removing device for pith extraction according to claim 4, characterized in that, The feeding mechanism includes a fifth frame, a housing, a third conveyor belt, a third drive motor, a second linear actuator, and a third detector. The fifth frame is located behind the first frame. The housing is fixedly installed on the upper inner side of the fifth frame. The third conveyor belt is rotatably installed inside the housing. Several second partitions are spaced on the third conveyor belt. The third drive motor is connected to the outer side of the left end of the third conveyor belt drive shaft. The right side of the third drive motor is fixedly installed together with the corresponding position on the left side of the housing. The inlet is located in the middle of the front end of the housing, which is exactly at the lower rear side of the guide plate. The outlet is located in the middle of the lower side of the housing. A hopper door is hinged to the lower side of the housing corresponding to the outlet position. The hopper door is controlled to open and close by the second linear actuator fixedly installed on the housing. At least two third detectors are spaced on the left and right sides of the lower side of the hopper door to detect whether there are any open wood stem segments in the clamping mechanism. Or / and, the clamping assembly includes a tray, a third linear actuator, a clamping guide rail, a front clamp, a rear clamp, V-shaped teeth, and a fourth linear actuator. A tray for holding the detached wood stem segments is provided on the second frame corresponding to the discharge port of the feeding mechanism. Two third linear actuators are fixedly installed at intervals on the rear side of the tray. The lower rear side of the third linear actuator is fixedly installed together with the upper side of the second frame at the corresponding position. Two clamping guide rails are symmetrically provided on the second frame corresponding to the left and right sides of the tray. The front clamp and the rear clamp are installed at intervals on the two clamping guide rails through sliders. Several V-shaped teeth with opposite openings are fixedly installed at intervals on the rear side of the front clamp and the front side of the rear clamp. A clamping space for the detached wood stem segments can be formed between the two sets of V-shaped teeth. A fourth linear actuator is fixedly installed in the middle of the front side of the front clamp and the middle of the rear side of the rear clamp. The end of each fourth linear actuator away from the V-shaped teeth is fixedly installed on the second frame through a bracket. Or / and, the jacking assembly includes a sixth frame, a fifth linear actuator, a through rod, a frustum-shaped mandrel, and a T-shaped guide seat. The sixth frame is fixedly installed on the second frame corresponding to the right side of the clamping assembly. The fifth linear actuator is fixedly installed on the upper side of the sixth frame. The inner left side of the fifth linear actuator has a left extension end that can extend to the left. The left end of the left extension end is fixedly installed with a through rod. The outer left end of the through rod is detachably installed with a frustum-shaped mandrel that is larger on the left and smaller on the right. The outer side of the through rod corresponding to the right side of the frustum-shaped mandrel is fitted with a T-shaped guide seat. The lower end of the T-shaped guide seat is fixedly installed together with the corresponding position on the upper side of the second frame.

9. The modular automatic core-removing device for *Tetracentron sinense* according to any one of claims 7 or 8, characterized in that, The core-taking mechanism also includes a material collection and processing system located at the lower part of the second frame. The material collection and processing system includes a waste discharge conveyor belt, a product discharge transmission belt, and a box-shaped product collection baffle. The lower inner side of the second frame is provided with a waste discharge conveyor belt that is inclined in a front-low and rear-high configuration. The left side of the second frame is provided with a product discharge transmission belt that is inclined in a front-low and rear-high configuration. The drive shaft of the product discharge transmission belt is fixedly installed together with the drive shaft of the waste discharge conveyor belt. The drive shaft of the product discharge conveyor belt is connected to the output shaft of the third drive motor through a chain drive. A box-shaped product collection baffle with an opening facing downward is fixedly installed in the middle of the left side of the second frame. The right side plate of the box-shaped product collection baffle, corresponding to the left end of the clamping component, is provided with a material passage hole that runs through both the inside and outside.

10. The modular automatic core-removing device for *Tetracentron sinense* according to claim 6, characterized in that, The core-taking mechanism also includes a material collection and processing system located at the lower part of the second frame. The material collection and processing system includes a waste discharge conveyor belt, a product discharge transmission belt, and a box-shaped product collection baffle. The lower inner side of the second frame is provided with a waste discharge conveyor belt that is inclined in a front-low and rear-high configuration. The left side of the second frame is provided with a product discharge transmission belt that is inclined in a front-low and rear-high configuration. The drive shaft of the product discharge transmission belt is fixedly installed together with the drive shaft of the waste discharge conveyor belt. The drive shaft of the product discharge conveyor belt is connected to the output shaft of the third drive motor through a chain drive. A box-shaped product collection baffle with an opening facing downward is fixedly installed in the middle of the left side of the second frame. The right side plate of the box-shaped product collection baffle, corresponding to the left end of the clamping component, is provided with a material passage hole that runs through both the inside and outside.

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