Pepper stem removing device

Abstract

The invention relates to agricultural machinery, in particular to a pepper stem removing device. The upper end of the blanking mechanism is connected with the feeding mechanism, and the lower end of the blanking mechanism is located above the handle aligning mechanism; the overturning orientation mechanism is connected with the lower end of the blanking mechanism and comprises a plurality of rotatable overturning base plate parts, each overturning base plate part comprises a plurality of base plates arranged at intervals in the circumferential direction, and four-rod linkage parts are arranged on the side faces, facing the handle aligning mechanism, of the base plates in the rotating process; a flexible double-rod linkage part is arranged on the side face, back on to the handle aligning mechanism, of the base plate in the rotating process, a rack part is arranged above the overturning base plate part, and gear meshing is formed between the rack part and the flexible double-rod linkage part. A conveying mechanism is arranged at the output end of the handle aligning mechanism; the double-roller stem removing mechanism is arranged on the outer side in the conveying direction of the conveying mechanism and completes the pepper stem removing action in the pepper conveying process. According to the pepper stem removing machine, the integrated pepper stem removing technology of pepper direction adjusting, stem removing and sorting is achieved, and the pepper stem removing effect and the pepper stem removing efficiency are improved.

Description

Technical Field

[0001] This invention relates to agricultural machinery, and in particular to a chili pepper stem removal device. Background Technology

[0003] Existing chili pepper stem removal technologies are overly complex and cannot comprehensively address the issues of removing curved stems, straightening stems, and removing the cap. Specialized stem removal techniques for curved-stem chilies or removing the cap are still in the exploratory stage and cannot meet the development needs of the chili processing industry. Due to the large variety of chili peppers, the adaptability of mechanized stem removal needs improvement; most chilies still rely on manual stem removal to eliminate curved stems and caps, severely restricting the economic benefits of the chili industry. Currently, there is a large global demand for chili pepper stem removal equipment, representing a huge market potential. Given the shortcomings of current chili pepper stem removal technology in practice, there is an urgent need to develop an efficient and reasonable stem removal solution to compensate for the current insufficient coverage of chili pepper stem removal. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned defects in the existing technology and to propose a chili stem removal device that realizes an integrated chili stem removal technology of chili orientation-stem removal-sorting, thereby improving the stem removal effect and efficiency of chili.

[0005] The technical solution of the present invention is: a chili pepper stem removal device, comprising a frame, wherein: The material feeding mechanism is inclined, with its upper end connected to the feeding mechanism and its lower end located above the handle mechanism; The flipping orientation mechanism is connected to the lower end of the unloading mechanism and includes several rotatable flipping base plate parts. Each flipping base plate part includes several base plates spaced apart along the circumferential direction. During rotation, the base plate has a four-bar linkage part on the side facing the handle mechanism and a flexible double-bar linkage part on the side facing away from the handle mechanism. A rack part is provided above the flipping base plate part, and a gear meshing is formed between the rack part and the flexible double-bar linkage part. The handle mechanism is located at the lower front of the unloading mechanism, and a conveying mechanism is provided at the output end of the handle mechanism; The roller stem removal mechanism is located on the outside of the conveying direction of the conveying mechanism and completes the stem removal action of the chili peppers during the conveying process.

[0006] In this invention, the material feeding mechanism includes: The inclined material discharge ramp is connected to the feeding mechanism at its top end and to the tilting and orientation mechanism at its bottom end. The first guide bar is provided in several rows on the upper part of the material dropping slope. Each row of the first guide bar includes several first guide bars that are spaced apart along the width of the material dropping slope. The first guide bars extend along the inclination direction of the material dropping slope, and the inclination directions of adjacent first guide bars are opposite. The second guide block has several second guide blocks spaced apart along the width direction of the material dropping slope in the middle of the material dropping slope. The cross-section of the second guide block is triangular. A guide rail extending along the inclined direction of the feeding slope is provided between the channel formed between two adjacent second guide blocks and the corresponding flipping substrate. The chili pepper enters the flipping substrate through the guide rail.

[0007] The flip-top section includes several substrates spaced apart along the circumferential direction, and the inner ends of each substrate are fixedly connected to each other. The inner ends of each substrate are provided with openings, and the openings of each substrate are interconnected. Each flip base plate is rotatably mounted on the support shaft, and each flip base plate is connected to a micro motor. The micro motor controls the rotation of the flip base plate, and the rotation direction of the flip base plate is towards the handle mechanism.

[0008] The four-bar linkage includes components arranged sequentially from the outer side to the inner side of the substrate: Two symmetrically arranged first connecting rods are rotatably connected to the base plate; Two symmetrically arranged second links are rotatably connected to the first link on the same side, and a first roller is provided at the rotatable connection point. The first rollers on both sides are symmetrically arranged. Two symmetrically arranged third links are rotatably connected at one end to the second link on the same side, and at the other end to the third link on the same side. A connecting shaft is provided at the connection between the third link and the second link. The connecting shaft passes through the substrate and is connected to the flexible double-rod linkage part on the back of the substrate. A second roller is provided at the rotatable connection between the third link and the fourth link. The second rollers on both sides are symmetrically arranged. Two symmetrically arranged fourth links are rotatably connected to the base plate; The length of the third link is greater than the length of the second link. When the distance between the two first rollers and the distance between the two second rollers are equal, the distance between the two second rollers is less than the distance between the two first rollers. The first and second rollers are equipped with contact sensors, which control the movement of the micro motors.

[0009] The flexible dual-bar linkage includes: The trigger gear is located in a groove at the outer end of the substrate. A flexible connecting rod has an open outer end and a groove inside. A second sliding plate is slidably disposed in the groove. Several levers are spaced apart on the side of the second sliding plate. The levers contact the teeth of the trigger gear. During the rotation of the trigger gear, a downward pushing force is generated on the levers. Correspondingly, a long strip groove is provided on the side of the flexible connecting rod. The levers are movably disposed in the long strip groove. A flexible spring is provided between the inner side of the second sliding plate and the groove. Two symmetrically arranged sliding plate connecting rods, one end of which is connected to the inner end of the flexible connecting rod, and the other end of which is rotatably connected to the first sliding plate; Two first slide plates are slidably disposed in horizontal grooves on both sides of the base plate. A connecting shaft passes through the first slide plates. A vertical groove is provided on the front side of the first slide plates facing the handle mechanism. A guide slider is fixed on the connecting shaft and is slidably disposed in the vertical groove.

[0010] The rack section includes: The rack is arranged in a corresponding manner to the trigger gear. The rack is inclined, with the end facing the handle mechanism lower than the end facing away from the corresponding mechanism, so as to ensure that the engagement between the rack and the trigger gear is triggered when the base plate rotates downward. A rack and pinion connecting plate, with the rack fixed to the bottom surface of the rack and pinion connecting plate.

[0011] The lever mechanism includes: Several rotating rollers are arranged in sequence, with their axial direction set along the direction in which the chili peppers fall. One end of the rotating roller is located below the flipping and orientation mechanism, and the other end of the rotating roller passes through the handle plate. The handle plate is arranged along the axial direction perpendicular to the rotating roller.

[0012] The roller despinning mechanism includes: The upper and lower descrambling rollers are located directly above the lower descrambling roller, and their rotation directions are opposite. Both are installed inside the descrambling box. The stem removal box has a horizontal elongated hole on its side facing the conveying mechanism. During the process of conveying chili peppers, the chili pepper stems pass through the elongated hole and extend into the stem removal box. The main shaft transmits power to the upper and lower descrambling rollers through bevel gears and gear sets. A positive ratchet and a negative ratchet are fixed on the main shaft. The ratchet lever includes a vertical connecting rod and a horizontal connecting rod. The bottom end of the vertical connecting rod is rotatably connected to the main shaft, and the top end of the vertical connecting rod is connected to the horizontal connecting rod. The horizontal connecting rod is provided with a second pawl that meshes with the positive ratchet and a first pawl that meshes with the negative ratchet. The first motor has its output end connected to the slider via a motor output swing arm, and the slider is slidably mounted on the vertical connecting rod.

[0013] The device also includes a photosensitive sorting mechanism, which is connected to the output end of the conveying mechanism via a steering track; the photosensitive sorting mechanism includes: A circular sliding track is fitted onto two support wheels. The circular rotation of the sliding track is achieved by the rotation of the support wheels. Several sorting photosensitive electromagnetic boxes are arranged sequentially on the outer surface of the circular sliding track. The sorting photosensitive electromagnetic box includes a box body, and the top of the box body is provided with an arc-shaped plate for placing chili peppers. The length of the arc-shaped plate is less than the length of the box body, thereby forming an opening at one end of the top of the box body. The opening is equipped with a photoelectric sensor for detecting the chili pepper stem. Once the chili pepper stem is detected, a sorting execution slider pushes the chili pepper out. The electromagnetic component drives the movement of the sorting execution slider.

[0014] The beneficial effects of this invention are: (1) In order to meet the requirements of removing the stems of chili peppers, through the study of the special physical structure of chili peppers, a four-bar linkage part, a flexible double-bar linkage part and a rack part were designed to adapt to the structural characteristics of chili peppers. This can realize the mechanical discrimination of the chili pepper orientation and the physical adjustment of the chili pepper orientation to ensure that the chili pepper stem orientation is consistent, thus providing a basis for subsequent chili pepper processing. (2) During the conveying process of chili peppers, the chili pepper stem removal mechanism is used to remove the stems of the chili peppers by using two stem removal rollers whose direction of rotation changes continuously. At the same time, the sticky residual stem tissue is removed, which improves the stem removal efficiency and the stem removal effect of chili peppers. (3) Finally, each chili pepper is monitored by the light-sensing sorting system to check whether the chili pepper has been destemmed. The chili peppers after destemming are collected. The chili peppers without destemmed are pushed out and destemmed again, which ensures the destemming effect of the chili peppers and realizes the integrated chili pepper destemming technology of chili pepper orientation-destemming-sorting. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural schematic diagram of this application; Figure 2 This is a second three-dimensional structural schematic diagram of this application; Figure 3 This is a schematic diagram of the flipping orientation mechanism; Figure 4 This is a schematic diagram of the structure of the flip-top substrate. Figure 5 This is a schematic diagram of the main structure of the four-bar linkage when the chili pepper stem is facing upwards; Figure 6 This is a schematic diagram of the main structure of the four-bar linkage when the chili pepper stem is facing downwards; Figure 7 This is a schematic diagram of the first three-dimensional structure of the flexible double-bar linkage; Figure 8 This is a schematic diagram of the second three-dimensional structure of the flexible double-bar linkage; Figure 9 This is a schematic diagram of the flipping and orientation mechanism when the chili pepper stem is facing upwards; Figure 10 This is a schematic diagram of the flipping and orientation mechanism when the chili pepper stem is facing down; Figure 11This is a schematic diagram of the roller despinning mechanism and the conveying mechanism; Figure 12 This is a schematic diagram of the connection between the first motor and the ratchet in the roller shank removal mechanism; Figure 13 This is a schematic diagram of the optical sorting mechanism; Figure 14 This is a schematic diagram of the structure of the sorting photosensitive electromagnetic box.

[0016] In the diagram: 1. Frame; 2. Feeding mechanism; 201. Feed box; 202. Feed grid; 3. Unloading mechanism; 301. Unloading ramp; 302. First guide bar; 303. Second guide block; 304. Guide rail; 4. Tilting and orientation mechanism; 401. Rack support rod; 402. Rack connecting plate; 403. Four-bar linkage; 404. Support shaft; 405. Flexible double-bar linkage; 406. Base plate; 407. First connecting rod; 408. Second connecting rod; 409. Third connecting rod; 410. Fourth connecting rod; 411. First roller; 412. Second roller; 413. Connecting shaft; 414. Horizontal slide; 415. First slide plate; 416. Vertical slide; 417. Trigger gear; 418. Flexible connecting rod; 419. Slide plate connecting rod; 420. Second slide plate; 421. Lever; 422. Flexible spring; 423. Long strip slide; 424. Rack and pinion; 425 Opening; 5 Handle mechanism; 501 Rotating roller; 502 Handle plate; 503 Drive chain; 6 Handle removal mechanism; 601 Upper handle removal roller; 602 Lower handle removal roller; 603 Handle removal box; 604 First motor; 605 Swing rod ratchet; 606 First paddle; 607 Reverse ratchet; 608 Second paddle; 609 Positive ratchet; 610 Drive shaft; 611 Motor output swing rod; 612 Slider; 7 Conveying mechanism; 701 Upper clamping conveyor belt; 702 Driven wheel; 703 Lower clamping conveyor belt; 704 Drive wheel; 705 Second motor; 8 Steering track; 9 Photosensitive sorting mechanism; 901 Sorting photosensitive electromagnetic box; 902 Support wheel; 903 Sliding track; 904 Box body; 905 Drive electromagnetic assembly; 906 Photoelectric sensor; 907 Sorting execution push plate; 10 Chili pepper. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Specific details are set forth in the following description to provide a full understanding of the invention. However, the invention can be practiced in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1 and Figure 2As shown, the chili stem removal device of the present invention includes a frame 1, on which a stem-removing mechanism 5, a conveying mechanism 7, and a photosensitive sorting mechanism 9 are sequentially arranged, and these three components are connected in sequence. A roller stem removal mechanism 6 is provided on the outer side of the conveying mechanism 7. During the conveying of chilies, the conveying mechanism 7 removes the stems from the chilies through the roller stem removal mechanism 6. The conveying mechanism 7 and the photosensitive sorting mechanism 9 are connected by a steering rail 8. A feeding mechanism 2 is provided at the top of the frame 1, located above the stem-removing mechanism 5. A discharge mechanism 3 connects the feeding mechanism 2 and the stem-removing mechanism 5. The discharge mechanism 3 is inclined, with its upper end below the feeding mechanism 2 and its lower end above the stem-removing mechanism 5. A flipping and directional mechanism 4 is provided at the lower end of the discharge mechanism 3.

[0020] The feeding mechanism 2 includes a feeding box 201 with an open top, through which chili peppers are fed into the feeding box 201. The bottom of the feeding box 201 has several feeding grids 202, through which the chili peppers fall onto the discharging mechanism 3. The feeding grids 202 perform initial shaping of the chili peppers.

[0021] The feeding mechanism 3 includes a feeding ramp 301, which is inclined. The top of the feeding ramp 301 is located directly below the feeding box 201, and the bottom of the feeding ramp 301 is located directly above the handle-matching mechanism 5. The chili peppers falling from the feeding box 201 fall directly onto the feeding ramp 301, slide along the feeding ramp 301, and fall onto the handle-matching mechanism 5.

[0022] A flipping and directional mechanism 4 is provided at the lower end of the discharge slope 301. The upper surface of the discharge slope 301 is provided with a first guide strip, a second guide block 303, and a guide rail 304 from top to bottom. Several rows of first guide strips are spaced apart along the inclination direction of the discharge slope 301. Each row of first guide strips includes several first guide strips 302 spaced apart along the width direction of the discharge slope. The first guide strips 302 extend along the inclination direction of the discharge slope 301, and the inclination directions of adjacent first guide strips are opposite. Under the blocking and deflecting action of the first guide strips 302, the chili peppers falling onto the discharge slope 301 are adjusted to a vertical position, that is, the chili pepper stems are positioned upwards or downwards.

[0023] A row of second guide blocks is provided in the middle of the upper surface of the feeding ramp 301. This row of second guide blocks includes several second guide blocks 303 spaced apart in the width direction of the feeding ramp. The cross-sectional shape of the second guide block 303 is triangular, and a vertical channel is formed between two adjacent second guide blocks 303 to allow the chili peppers to pass through. The chili peppers are guided again by the second guide blocks 303, and only vertically oriented chili peppers can pass between two adjacent second guide blocks. Horizontally oriented chili peppers cannot pass through the second guide blocks to enter the flipping and orientation mechanism 4.

[0024] Below the gap between each pair of adjacent second guide blocks, there is a guide rail 304 set along the inclined surface of the material dropping slope. The chili peppers passing between the two adjacent second guide blocks eventually enter the flipping and orientation mechanism 4 along the guide rail 304. The guide rail 304 plays a role in precisely guiding the chili peppers.

[0025] The flipping and orientation mechanism 4 orients the chili peppers, ensuring that the stems of all the peppers are aligned in the same direction. For example... Figures 3 to 10 As shown, the flipping and orientation mechanism 4 includes a support shaft 401, a flipping substrate section, and a rack section. The support shaft 401 extends axially along the width direction of the blanking inclined surface, and both ends of the support shaft 401 are connected to the lower end of the blanking inclined surface. Several flipping substrate sections are provided on the support shaft 401, and each flipping substrate section is connected to a micro motor. Driven by the micro motor, the flipping substrate rotates along the support shaft 401, thereby completing the flipping action of the flipping substrate section. The rack section is located above the flipping substrate sections.

[0026] In this application, the guide rail 304 and the flipping base plate are arranged in a corresponding manner, and the chili peppers sliding down the guide rail 304 fall into the corresponding flipping base plate. At the same time, the flipping base plate and the rack are arranged in a corresponding manner, that is, each flipping base plate is provided with a rack above it.

[0027] The flip-over substrate includes three substrates 406, which are spaced apart in a 360° circumferential direction, i.e., the angle between any two adjacent substrates is 120°. The inner edges of the three substrates are connected to each other to form a common edge, which is fitted onto a support shaft 401. A micro motor is provided inside the common edge, which can drive the common edge to rotate around the support shaft 401. An opening 425 is provided at the inner end of each substrate 406, and the openings of the three substrates 406 are interconnected.

[0028] In this embodiment, a four-bar linkage part 403 is provided on the side of the substrate facing the handle mechanism 5 during rotation, and a flexible double-bar linkage part 405 is provided on the side of the substrate away from the handle mechanism 5 during rotation. The flexible double-bar linkage part 405 meshes with the rack part. When the substrate rotates to the point where the flexible double-bar linkage part 405 meshes with the rack part, the chili pepper can be released through the meshing between the flexible double-bar linkage part and the rack part.

[0029] The four-bar linkage includes, from top to bottom, paired first links, paired second links, paired third links, and paired fourth links. The paired first links include two symmetrically arranged first links 407, the paired second links include two symmetrically arranged second links 408, the paired third links include two symmetrically arranged third links 409, and the paired fourth links include two paired fourth links 410. The first links 407 and 408 are rotatably connected, and a first roller 411 is provided at the rotatable connection point between them, with the first rollers 411 on both sides symmetrically arranged. The second links 408 and 409 are rotatably connected. The third links 409 and 410 are rotatably connected, and a second roller 412 is provided at the rotatable connection point between them, with the second rollers 412 on both sides symmetrically arranged.

[0030] The second link 408 and the third link 409 are rotatably connected by a connecting shaft 413. The connecting shaft 413 passes through the substrate and is connected to the flexible double-bar linkage part 405 located on the back of the substrate. That is, one end of the connecting shaft 413 is connected to the four-bar linkage part, and the other end of the connecting shaft 413 is connected to the flexible double-bar linkage part.

[0031] A guide slider is fixed on the connecting shaft 413. The guide slider is slidably set in the vertical groove 416 of the first slide plate 415. During the operation of the four-bar linkage, the guide slider slides in the vertical groove 416. At this time, the vertical position of the connecting shaft 413 in the vertical groove changes, realizing the action of each link.

[0032] Two square openings are symmetrically provided on the substrate 406. A first sliding plate 415 is disposed in the square opening. The first sliding plate 415 can slide along the first horizontal groove 414 in the square opening, so the first sliding plate 415 can slide horizontally in the square opening. A spring is connected between the first sliding plate 415 and the side wall of the opening. In the initial state, the spring is in the natural state.

[0033] In this application, under the action of the connecting rod, when the distance between the two first rollers 411 increases, the distance between the two second rollers 412 decreases; when the distance between the two second rollers 412 increases, the distance between the two first rollers 411 decreases. Furthermore, the length of the second connecting rod 408 is less than the length of the third connecting rod 409. Therefore, when the distance between the two second rollers 412 and the distance between the two first rollers 411 are increased to the same distance, the distance between the two first rollers 411 is greater than the distance between the two second rollers 412.

[0034] like Figure 5 and Figure 9As shown, when the stem of the chili pepper 10 is positioned upwards, and because the chili pepper 10 is tilted on the substrate 406, it moves downwards along the substrate 406 under the influence of gravity. When the chili pepper 10 first contacts the first roller 411, it exerts an outward pushing force on the first roller 411, increasing the distance between the two first rollers 411. At this point, the chili pepper 10 is shaped with a larger top and a smaller bottom. As the size of the chili pepper gradually increases, it continuously pushes the first roller 411 outwards, increasing the distance between the two first rollers 411, while simultaneously decreasing the distance between the two second rollers 412.

[0035] As the chili pepper 10 moves downwards, its smaller end contacts the first roller 411 and then the second roller 412. When the larger end of the chili pepper 10 contacts the first roller 411, the distance between the two first rollers 411 increases to its maximum, while the distance between the second rollers 412 is at its minimum. Because the distance between the second rollers 412 is smaller than the size of the chili pepper in contact with them, there is an interference fit between the second rollers 412 and the chili pepper. The second rollers 412 act as a clamping device for the chili pepper 10, thus preventing it from moving further downwards under the resistance of the second rollers 412, thereby fixing the chili pepper 10 within the four-bar linkage.

[0036] Figure 6 and Figure 10 As shown, when the stem of the chili pepper 10 is positioned downwards, since the chili pepper 10 is tilted on the substrate 406, it moves downwards along the substrate 406 under the influence of gravity. At this time, the chili pepper 10 is shaped with a smaller top and a larger bottom. Therefore, when the larger end of the chili pepper 10 contacts the first roller 411 first, the chili pepper 10 exerts an outward pushing force on the first roller 411, increasing the distance between the two first rollers 411. After passing the first rollers 411, the chili pepper 10 continues to move downwards and contacts the two second rollers 412. The larger end of the chili pepper 10 exerts an outward pushing force on the second roller 412, increasing the distance between the two second rollers 412. Simultaneously, the distance between the two first rollers 411 decreases. However, the minimum distance between the two first rollers 411 is still greater than the size of the smaller end of the chili pepper 10. Therefore, the first rollers 411 do not clamp or fix the chili pepper 10, allowing it to pass smoothly through the first rollers 411 and the second rollers 412, and fall directly onto the handle-aligning mechanism 5 through the opening 425 at the bottom of the base plate. In this way, the chili pepper stem of the chili pepper 10 falling onto the handle-aligning mechanism 5 can directly face the handle-aligning plate 502 on the handle-aligning mechanism 5, ensuring that the chili pepper stems falling onto the handle-aligning mechanism 5 are aligned.

[0037] When the chili pepper, which is wider at the top and narrower at the bottom, falls into the four-bar linkage, it is clamped and fixed inside. At this time, all four rollers in the four-bar linkage are in contact with the chili pepper. Each roller is equipped with a contact sensor, which can determine the contact state between the four-bar linkage and the chili pepper. Then, through the flexible double-bar linkage and rack and pinion mechanism, and in conjunction with the rotation of the flipping base plate, the chili pepper 10 is flipped and released, ensuring that the chili pepper released and falling onto the handle-attaching mechanism 5 has its stem facing the handle-attaching plate 502.

[0038] like Figure 7 and Figure 8 As shown, the flexible dual-bar linkage includes a flexible connecting rod 418 and two symmetrically arranged sliding plate connecting rods 419. The flexible connecting rod 418 is located outside the sliding plate connecting rods 419. A slidable second sliding plate 420 is provided inside the flexible connecting rod 418. Several levers 421 are fixed at intervals on the symmetrical side walls of the outer end of the second sliding plate 420. Correspondingly, an elongated groove is provided on the side wall of the flexible connecting rod 418 to allow the levers 412 to slide within the elongated groove. Correspondingly, two trigger gears 417 are provided on the outer edge of the base plate 406, and the teeth on the trigger gears 417 can contact the levers 421.

[0039] In this embodiment, a groove is provided on the outer side of the substrate 406, and two trigger gears 417 are provided in the groove. The trigger gears 417 are respectively arranged in correspondence with the levers 421 on the two side walls of the second slide plate 420. During the rotation of the trigger gears 417, the teeth on the gears 417 contact the levers 421 and generate a force to push the levers 421 inward. The levers 421 drive the second slide plate 420 to move inward.

[0040] A flexible spring 422 is provided between the inner end of the second slide plate 420 and the groove wall of the flexible connecting rod 418. Initially, the spring is in its natural state. When the second slide plate 420 slides inward, it exerts pressure on the flexible spring 422, causing the flexible spring 422 to be in a compressed state.

[0041] Two sliding plate links 419 are connected to the inner end of the flexible link 418. One end of the sliding plate link 419 is rotatably connected to the flexible link 418, and the other end of the sliding plate link 419 is rotatably connected to the connecting shafts 413 on both sides respectively.

[0042] As the second slide plate 420 slides inward, after sliding to a certain extent, it pushes the flexible connecting rod 418 to move inward. During the movement of the flexible connecting rod 418, it simultaneously pushes the connecting ends of the slide plate connecting rods 491 on both sides and the connecting shaft 413 to move, thereby driving the first slide plate 415 connected to the connecting shaft 413 to move within the horizontal slide groove 414. The direction of movement is towards the sides of the base plate 406, and the distance between the two first slide plates 415 increases. While the first slide plate 415 moves, it drives the connecting rods connected to it to move. At this time, the distance between the two connecting rods increases, and the chili pepper that is clamped and fixed in the four-bar linkage can be released.

[0043] In this application, the rotation of the trigger gear 417 is triggered by the meshing between the trigger gear 417 and the rack section. The rack section includes several racks 424 located above the substrate. The racks 424 are correspondingly arranged with the flipping substrate section. That is, each flipping substrate section has a set of racks above it. Each set of racks includes two racks 424, and the two racks 424 mesh with the two trigger gears 417 at the outer end of the substrate. Each set of racks is fixed to the bottom of the rack connecting plate 402. The rack connecting plate 402 is fixed to the rack support rod 401. The two ends of the rack support rod 401 are fixedly connected to the two side plates of the blanking mechanism 3.

[0044] Meanwhile, the rack 424 is located above the handle mechanism 5, and the rack 424 is inclined. The rack is inclined downward along the rotation direction of the substrate, thereby ensuring that the substrate meshes with the rack 424 during the downward rotation.

[0045] When the chili pepper enters the four-bar linkage of a certain flipping base plate in a state where it is smaller at the top and larger at the bottom, the stem of the chili pepper 10 is set downwards. During the process of the chili pepper 10 passing through the four-bar linkage, only two rollers in the four-bar linkage contact the chili pepper at the same time. At this time, the flipping base plate does not need to rotate. The chili pepper 10 can automatically pass through the four-bar linkage under its own gravity and fall onto the handle-matching mechanism 5 through the opening 425 on the inner side of the base plate 406. At this time, the chili pepper stem that falls onto the handle-matching mechanism 5 faces the handle-matching plate.

[0046] When the chili pepper, with its upper portion larger than its lower portion, enters the four-bar linkage of a flipping base plate, the stem of the chili pepper 10 is facing upwards. As the chili pepper 10 passes through the four-bar linkage, all four rollers in the linkage contact with it, clamping and securing the pepper. At this point, contact sensors at the rollers detect the contact between the rollers and the chili pepper and send a signal to a micromotor connected to the flipping base plate. The micromotor then actuates, causing the flipping base plate to rotate forward towards the stem-aligning mechanism. As the substrate holding the chili pepper rotates downwards, the trigger gear 417 at the top of the substrate meshes with the rack 424 above it. During the rotation of the rack 424, the lever 421 moves inwards towards the substrate, and sequentially through the flexible link 418 and the sliding plate link 419, drives the first sliding plate 415 to slide towards the side of the substrate within the horizontal groove 414. This increases the distance between the two first sliding plates 415, and simultaneously increases the distance between the two rollers connected to the sensor that determines whether they are in contact. The clamping force acting on the chili pepper 10 disappears, and the chili pepper 10 falls onto the handle-aligning mechanism 5 under its own weight. Because the chili pepper 10 flips accordingly with the substrate when the trigger gear 417 meshes with the rack 424, the orientation of the chili pepper 10 changes. At this time, the chili pepper stem is above the handle-aligning mechanism 5 and faces the handle-aligning plate. Therefore, after flipping, the chili pepper stem falling onto the handle-aligning mechanism 5 also faces the handle-aligning plate.

[0047] After the chili pepper falls onto the handle mechanism 5, as the base plate continues to rotate, the rack part no longer meshes with the trigger gear. At this time, the second slide plate 420 automatically resets under the elastic force of the flexible spring 422. At this time, the slide plate linkage drives the first slide plate to automatically reset. At this time, the distance between the two linkages symmetrically arranged in the four-bar linkage part returns to the initial state.

[0048] Therefore, the flipping orientation mechanism 4 described in this application can accurately achieve the uniformity of the chili stem direction when the chili pepper falls onto the stem-aligning mechanism 5.

[0049] The handle mechanism 5 is located below the bottom end of the blanking mechanism 3. For example... Figure 1As shown, the aligning mechanism 5 includes several rotating rollers 501 arranged along the width of the feed slope 301. A sprocket is fixed to the end of each roller 501, and a chain is fitted around the outside of the sprocket. During rotation, the chain drives the sprocket, which in turn drives the roller 501. An aligning plate 502 is provided perpendicular to the axial direction of the rollers 501 and is fixed to the frame. The aligning plate 502 has holes through which the rollers 501 pass and are rotatably positioned. During the rotation of the rollers 501, the chili peppers rotate along with them. Spiral guide grooves extending axially can be provided on the rollers 501. Guided by these grooves, the chili peppers move towards the output end along with the rollers and also towards the aligning plate 502, which aligns the chili pepper stems.

[0050] The output end of the stem-aligning mechanism 5 is equipped with a conveying mechanism 7, which conveys the chili peppers. The outer side of the stem-aligning plate 502 is equipped with a roller stem-removing mechanism 6, which is set along the conveying direction of the conveying mechanism 7. During the conveying process of the chili peppers, the chili pepper stems enter the roller stem-removing mechanism 6, and the roller stem-removing mechanism 6 completes the rotation and stem-removal action of the chili pepper stems.

[0051] like Figure 11 and Figure 12 As shown, the conveying mechanism 7 includes an upper clamping conveyor belt 701 and a lower clamping conveyor belt 702. The upper clamping conveyor belt 701 and the lower clamping conveyor belt 702 form a space for the chili peppers to enter. The chili peppers enter between the upper clamping conveyor belt 701 and the lower clamping conveyor belt 702, and as the upper clamping conveyor belt 701 and the lower clamping conveyor belt 702 rotate, the chili peppers are clamped and conveyed from one end of the conveying mechanism 7 to the other end.

[0052] In this embodiment, the output end of the second motor 705 is connected to the drive wheel 704, the drive gear 704 is fixedly connected to the drive pulley of the upper clamping conveyor belt 701, the drive gear 704 and the driven gear 702 mesh with each other, and the driven gear 702 is fixedly connected to the drive pulley of the upper clamping conveyor belt. During the operation of the second motor 705, the drive gear 704 drives the upper clamping conveyor belt to rotate, and the driven gear 702 drives the lower clamping conveyor belt to rotate.

[0053] The double-roller stem removal mechanism 6 includes an upper stem removal roller 601 and a lower stem removal roller 602. The upper stem removal roller 601 is located directly above the lower stem removal roller 602, and the upper and lower stem removal rollers 601 and 602 rotate in opposite directions. When the chili stem enters between the upper and lower stem removal rollers 601 and 602, the opposing rotation of the upper and lower rollers causes the chili stem to twist relative to the chili body, effectively applying a force to the chili stem to make it rotate. While the chili stem is being twisted, the chili body continues to move with the conveying mechanism 7, creating a misalignment between the chili body and the chili stem. Under the combined action of crushing and twisting the chili stem, and the misalignment between the chili stem and the chili body, the chili stem can be successfully removed from the chili.

[0054] The upper stem removal roller 601 and the lower stem removal roller 602 are disposed inside the stem removal box 603. The stem removal box 603 has an elongated hole extending horizontally on the side facing the conveying mechanism. During the conveying process of the chili peppers, the upper clamping conveyor belt 701 and the lower clamping conveyor belt 703 clamp and convey the chili pepper body, while the chili pepper stem passes through the elongated hole of the stem removal box 603 and extends into the stem removal box 603. When the chili pepper stem is conveyed between the upper stem removal roller 601 and the lower stem removal roller 602, the chili pepper stem can be removed.

[0055] In this embodiment, the first motor 604 drives the descrambling roller to rotate, and the rotation direction of the descrambling roller is changed by the positive ratchet 609 and the negative ratchet 607.

[0056] The first motor 604 is fixed on the frame 1. The forward ratchet 609 and the reverse ratchet 607 are both fixed on the drive shaft 610, which is rotatably connected to the frame 1. The drive shaft 610 is connected to the upper descrambling roller 601 and the lower descrambling roller 602 via a bevel gear set and a gear set, transmitting power to the upper and lower descrambling rollers 601 and 602 respectively, and enabling reverse rotation between them. The bevel gear set and gear set are existing technologies and will not be described in detail here.

[0057] The output end of the first motor 604 is connected to the slider 612 mounted on the ratchet lever 605 via a motor output lever 611. The ratchet lever 605 includes a vertical connecting rod and a horizontal connecting rod. The bottom end of the vertical connecting rod is rotatably connected to the drive shaft 610, and the top end of the vertical connecting rod is fixedly connected to the horizontal connecting rod. The slider 612 is slidably mounted on the vertical connecting rod. One end of the motor output lever 611 is connected to the output shaft of the first motor 604, and the other end of the motor output lever 611 is rotatably connected to the slider 612.

[0058] The horizontal connecting rod is provided with a first paddle 606 and a second paddle 608, wherein the first paddle 606 is engaged with the reverse ratchet 607, and the second paddle 608 is engaged with the positive ratchet 609.

[0059] like Figure 12 As shown, during the operation of the first motor 604, its output shaft drives the motor output rocker arm 611 to swing. During the swing of the motor output rocker arm 611, the slider 612 drives the ratchet rocker arm 605 to continuously reciprocate. During the clockwise rotation of the ratchet rocker arm 605, the second paddle 608 on the ratchet rocker arm 605 engages with the positive ratchet 609, pushing the positive ratchet 609 to rotate clockwise, thereby driving the drive shaft 610 to rotate clockwise. At this time, the first paddle 606 slides over the surface of the negative ratchet 607. During the counterclockwise rotation of the ratchet rocker arm 605, the first paddle 606 on the ratchet rocker arm 605 engages with the negative ratchet 607, pushing the negative ratchet 607 to rotate clockwise, thereby driving the drive shaft 610 to rotate counterclockwise. At this time, the second paddle 608 slides over the surface of the positive ratchet 609.

[0060] During the reciprocating oscillation of the ratchet lever 605, alternating clockwise and counterclockwise rotations are achieved, thus continuously alternating the forward and reverse rotations of the drive shaft 610. This alternating forward and reverse rotation of the drive shaft 610 also changes the direction of rotation of the upper and lower destalking rollers 601 and 602. This alternating rotation of the upper and lower destalking rollers 601 and 602 continuously kneads the chili pepper stems and cleans away any remaining stem material adhering to the roller surface after removal, thus facilitating the removal of the chili pepper stems.

[0061] The output end of the output mechanism 7 is connected to the input end of the photosensitive sorting mechanism 9 via the steering rail 8. After the stem-removed chilies are conveyed to the photosensitive sorting mechanism 9 through the output mechanism 7, the photosensitive sorting mechanism 9 again detects whether the chilies have stems. Chilies with stems removed are collected uniformly by the photosensitive sorting mechanism 9, while chilies without stems are rejected within the photosensitive sorting mechanism 9 and conveyed back to the chili stem removal device for further stem removal. The photosensitive sorting mechanism 9 further ensures the effectiveness of stem removal for the chilies.

[0062] like Figure 13 and Figure 14 As shown, the photosensitive sorting mechanism 9 includes an annular sliding track 903 and sorting photosensitive electromagnetic boxes 901 arranged sequentially on the outside of the sliding track. The sliding track 903 is wound around the support wheels 902 at both ends. During the rotation of the support wheels 902, the sliding track 903 rotates, thereby driving the sorting photosensitive battery boxes 901 arranged on the sliding track 903 to complete the annular motion.

[0063] The sorting photosensitive electromagnetic box 901 includes a box body 904. The top of the box body 904 is provided with an arc-shaped plate, and the chili pepper body output from the deflection track 8 falls directly onto the arc-shaped plate. The length of the arc-shaped plate is less than the length of the box body 904, so the top side of the box body 904 is open. The box body below the opening is provided with a photoelectric sensor 906 and a sorting execution push plate 907.

[0064] When the photoelectric sensor 906 detects a chili pepper stem above it, it indicates that the stem has not been removed. The drive electromagnetic component 905 then actuates the sorting pusher 907, pushing the chili pepper off the container 904. When the photoelectric sensor 906 does not detect a chili pepper stem, it indicates that the stem has been removed. The sorting pusher 907 remains stationary, and the chili peppers on the container 904 rotate with the sliding track 903. When the container 904 rotates to an opening facing downwards, the chili peppers fall into the chili pepper collection device under their own gravity, thus achieving the collection of chili peppers with stems removed.

[0065] In summary, the working process of the chili stem removal device is as follows. First, the chili peppers are fed into the device through the feeding mechanism 2. Under their own weight, the chili peppers slide down the discharge slope 301 of the discharge mechanism 3. During the sliding process, the direction of the chili peppers is adjusted to ensure that the chili peppers can enter the flipping and directional mechanism 4 in a vertical direction.

[0066] When the chili pepper enters the flipping and orienting mechanism 4 with its top smaller than its bottom, it can smoothly pass through the four-bar linkage on the base plate and fall directly onto the rotating roller 501 of the handle-aligning mechanism through the opening 425 at the inner end of the base plate. When the chili pepper enters the flipping and orienting mechanism 4 with its top larger than its bottom, it is clamped and fixed in the four-bar linkage. At this time, all four rollers of the four-bar linkage are in contact with the chili pepper, activating the micro motor and driving the flipping base plate to rotate towards the handle-aligning mechanism. When the base plate rotates to the point where its trigger gear 417 meshes with the rack 424, as the base plate continues to rotate, the rack 424 causes the trigger gear 417 to rotate, the flexible double-bar linkage is activated, and the distance between the two connecting rods of the four-bar linkage increases. At this time, the clamping force acting on the chili pepper 10 disappears, and the chili pepper 10 falls onto the handle-aligning mechanism 5 under its own gravity.

[0067] As the chili peppers move from the rotating roller 501 to the output end of the stem-aligning mechanism 5, the stems are aligned by the stem-aligning plate 502. After the chili peppers 10 are conveyed into the conveying mechanism 7, the stems extend into the roller stem-removing mechanism 6 while the conveying mechanism holds the chili peppers 10. During the alternating rotation of the upper stem-removing roller 601 and the lower stem-removing roller 602 of the roller stem-removing mechanism 6, the chili pepper stems are kneaded, and the stems are twisted off from the ends of the chili peppers, thus removing the chili pepper stems.

[0068] Chili peppers with their stems removed enter the photosensitive sorting mechanism 9 via the deflector track 8. The photosensitive sorting mechanism 9 detects whether each chili pepper has its stem removed. Chili peppers that have had their stems removed fall into the chili pepper collection device as the photosensitive sorting mechanism rotates. Chili peppers that still have their stems removed are pushed out by the sorting execution pusher 907. The pushed-out chili peppers are then sent back into the chili pepper stem removal device for stem removal again.

[0069] The chili pepper stem removal device provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention. The above description of the disclosed embodiments enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chili pepper stem removal device, comprising a frame, characterized in that, include: The material feeding mechanism is inclined, with its upper end connected to the feeding mechanism and its lower end located above the handle mechanism; The flipping orientation mechanism is connected to the lower end of the unloading mechanism and includes several rotatable flipping base plate parts. Each flipping base plate part includes several base plates spaced apart along the circumferential direction. During rotation, the base plate has a four-bar linkage part on the side facing the handle mechanism and a flexible double-bar linkage part on the side facing away from the handle mechanism. A rack part is provided above the flipping base plate part, and a gear meshing is formed between the rack part and the flexible double-bar linkage part. The handle mechanism is located at the lower front of the unloading mechanism, and a conveying mechanism is provided at the output end of the handle mechanism; The roller stem removal mechanism is located on the outside of the conveying direction of the conveying mechanism and completes the stem removal action of the chili peppers during the conveying process.

2. The chili pepper stem removal device according to claim 1, characterized in that, The blanking mechanism includes: The inclined material discharge ramp is connected to the feeding mechanism at its top end and to the tilting and orientation mechanism at its bottom end. The first guide bar is provided in several rows on the upper part of the material dropping slope. Each row of the first guide bar includes several first guide bars that are spaced apart along the width of the material dropping slope. The first guide bars extend along the inclination direction of the material dropping slope, and the inclination directions of adjacent first guide bars are opposite. The second guide block has several second guide blocks spaced apart along the width direction of the material dropping slope in the middle of the material dropping slope. The cross-section of the second guide block is triangular. A guide rail extending along the inclined direction of the feeding slope is provided between the channel formed between two adjacent second guide blocks and the corresponding flipping substrate. The chili pepper enters the flipping substrate through the guide rail.

3. The chili pepper stem removal device according to claim 1, characterized in that, The flip-top section includes several substrates spaced apart along the circumferential direction, and the inner ends of each substrate are fixedly connected to each other. The inner ends of each substrate are provided with openings, and the openings of each substrate are interconnected. Each flip base plate is rotatably mounted on the support shaft, and each flip base plate is connected to a micro motor. The micro motor controls the rotation of the flip base plate, and the rotation direction of the flip base plate is towards the handle mechanism.

4. The chili pepper stem removal device according to claim 3, characterized in that, The four-bar linkage includes components arranged sequentially from the outer side to the inner side of the substrate: Two symmetrically arranged first connecting rods are rotatably connected to the base plate; Two symmetrically arranged second links are rotatably connected to the first link on the same side, and a first roller is provided at the rotatable connection point. The first rollers on both sides are symmetrically arranged. Two symmetrically arranged third links are rotatably connected at one end to the second link on the same side, and at the other end to the third link on the same side. A connecting shaft is provided at the connection between the third link and the second link. The connecting shaft passes through the substrate and is connected to the flexible double-rod linkage part on the back of the substrate. A second roller is provided at the rotatable connection between the third link and the fourth link. The second rollers on both sides are symmetrically arranged. Two symmetrically arranged fourth links are rotatably connected to the base plate; The length of the third link is greater than the length of the second link. When the distance between the two first rollers and the distance between the two second rollers are equal, the distance between the two second rollers is less than the distance between the two first rollers. The first and second rollers are equipped with contact sensors, which control the movement of the micro motors.

5. The chili pepper stem removal device according to claim 4, characterized in that, The flexible dual-bar linkage includes: The trigger gear is located in a groove at the outer end of the substrate. A flexible connecting rod has an open outer end and a groove inside. A second sliding plate is slidably disposed in the groove. Several levers are spaced apart on the side of the second sliding plate. The levers contact the teeth of the trigger gear. During the rotation of the trigger gear, a downward pushing force is generated on the levers. Correspondingly, a long strip groove is provided on the side of the flexible connecting rod. The levers are movably disposed in the long strip groove. A flexible spring is provided between the inner side of the second sliding plate and the groove. Two symmetrically arranged sliding plate connecting rods, one end of which is connected to the inner end of the flexible connecting rod, and the other end of which is rotatably connected to the first sliding plate; Two first slide plates are slidably disposed in horizontal grooves on both sides of the base plate. A connecting shaft passes through the first slide plates. A vertical groove is provided on the front side of the first slide plates facing the handle mechanism. A guide slider is fixed on the connecting shaft and is slidably disposed in the vertical groove.

6. The chili pepper stem removal device according to claim 5, characterized in that, The rack section includes: The rack is arranged in a corresponding manner to the trigger gear. The rack is inclined, with the end facing the handle mechanism lower than the end facing away from the corresponding mechanism, so as to ensure that the engagement between the rack and the trigger gear is triggered when the base plate rotates downward. A rack and pinion connecting plate, with the rack fixed to the bottom surface of the rack and pinion connecting plate.

7. The chili pepper stem removal device according to claim 1, characterized in that, The lever mechanism includes: Several rotating rollers are arranged in sequence, with their axial direction set along the direction in which the chili peppers fall. One end of the rotating roller is located below the flipping and orientation mechanism, and the other end of the rotating roller passes through the handle plate. The handle plate is arranged along the axial direction perpendicular to the rotating roller.

8. The chili pepper stem removal device according to claim 1, characterized in that, The roller despinning mechanism includes: The upper and lower descrambling rollers are located directly above the lower descrambling roller, and their rotation directions are opposite. Both are installed inside the descrambling box. The stem removal box has a horizontal elongated hole on its side facing the conveying mechanism. During the process of conveying chili peppers, the chili pepper stems pass through the elongated hole and extend into the stem removal box. The main shaft transmits power to the upper and lower descrambling rollers through bevel gears and gear sets. A positive ratchet and a negative ratchet are fixed on the main shaft. The ratchet lever includes a vertical connecting rod and a horizontal connecting rod. The bottom end of the vertical connecting rod is rotatably connected to the main shaft, and the top end of the vertical connecting rod is connected to the horizontal connecting rod. The horizontal connecting rod is provided with a second pawl that meshes with the positive ratchet and a first pawl that meshes with the negative ratchet. The first motor has its output end connected to the slider via a motor output swing arm, and the slider is slidably mounted on the vertical connecting rod.

9. The chili pepper stem removal device according to claim 1, characterized in that, It also includes a light-sensitive sorting mechanism, which is connected to the output end of the conveying mechanism via a steering track; the light-sensitive sorting mechanism includes: A circular sliding track is fitted onto two support wheels. The circular rotation of the sliding track is achieved by the rotation of the support wheels. Several sorting photosensitive electromagnetic boxes are arranged sequentially on the outer surface of the circular sliding track. The sorting photosensitive electromagnetic box includes a box body, and the top of the box body is provided with an arc-shaped plate for placing chili peppers. The length of the arc-shaped plate is less than the length of the box body, thereby forming an opening at one end of the top of the box body. The opening is equipped with a photoelectric sensor for detecting the chili pepper stem. Once the chili pepper stem is detected, a sorting execution slider pushes the chili pepper out. The electromagnetic component drives the movement of the sorting execution slider.

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