A multifunctional green pepper picking machine

Abstract

The present invention relates to a multifunctional green pepper picking machine, comprising a mobile device, a drying and picking device, a collecting and transmitting device, a screening device and a terminal collecting device; the drying and picking device, the collecting and transmitting device and the screening device are sequentially installed on the mobile device from back to front, and the terminal collecting device is installed on the mobile device and is located below the screening device; the drying and picking device dries pepper grains by microwaves, and picks grains by a picking mechanism that moves axially in a drying cylinder, and outputs pepper grains through a discharge port of the drying cylinder; the collecting and transmitting device transports pepper grains to the screening device by negative pressure adsorption, and the screening device realizes the screening of pepper shells and pepper grains by inner and outer cylinders and two screening rollers, and transports pepper shells and pepper seeds to two storage areas on a straight screen through two outlets; the straight screen vibrates left and right, so that the pepper shells and pepper seeds fall into two spaces in a terminal collecting bin respectively. The present invention realizes the integrated production of drying, picking, shell and seed screening and separate collection.

Description

Technical Field

[0001] The invention belongs to the technical field of crop harvesting equipment, and in particular relates to a multifunctional green pepper picking machine. Background Art

[0002] Green pepper is a shrub of the Rutaceae family and Zanthoxylum genus. The traditional way of picking green pepper is for pickers to manually pick the clusters of green pepper with different tools and then remove the leaves and thorns. However, due to the biological characteristics of green pepper, such as many thorns, disorderly distribution, and easy damage of oil cells, the picking efficiency of green pepper is low.

[0003] Publication No. CN108450147A discloses an automatic pepper picking machine, which includes an outer tube, an inner tube, a picking head, a camera and a support arm; the inner and outer tubes can be extended and retracted under the action of the support arm, and the operator can obtain pepper images by the camera and move to a suitable position to obtain pepper clusters using the picking head. The picking machine is highly dependent on the operator, and the workload of the operator is large while the efficiency is low.

[0004] Publication No. CN110583231A discloses an electric pepper picking machine, including a housing, a motor, a wire bracket, a power supply and a power switch. The operation of the machine is controlled by the power switch. The wire bracket is connected to the motor. The rotation of the motor drives the bracket to rotate and brings the pepper clusters into the feed port on the housing. At the same time, the pepper is cut by the high-speed rotation of the wire. The electric picking machine can only be used by one person, and the number of clusters that can be picked at the same time is low. The picking efficiency is low, and the branches also need to be manually pushed away.

[0005] In addition, existing pepper picking machines can only pick pepper clusters. In addition to the low picking efficiency, subsequent drying and separation operations of pepper shells and pepper seeds are required. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a multifunctional green pepper picking machine that integrates drying, picking and separation.

[0007] The above-mentioned object of the present invention is achieved by the following technical solutions:

[0008] A multifunctional green pepper picking machine, characterized in that it comprises a moving device, a drying and picking device, a collecting and transmitting device, a screening device and a terminal collecting device; the drying and picking device, the collecting and transmitting device and the screening device are sequentially installed on the moving device from back to front, and the terminal collecting device is installed on the moving device and is located below the screening device;

[0009] The drying and picking device comprises a drying drum support and a cylindrical drying assembly mounted on the drying drum support, the cylindrical drying assembly has two left and right columns, each column is composed of three groups arranged up and down; the cylindrical drying assembly comprises an upper half shell, a lower half shell, a microwave suppressor, a microwave generator, a picking mechanism and a discharge port opening and closing control structure; the upper half shell and the lower half shell are connected in an openable and closable manner to form a drying drum; the microwave suppressor and the microwave generator are mounted on the upper shell; the picking mechanism is installed in the drying drum and is a grain picking mechanism that can perform linear motion along the axial direction of the drum; a clamping mechanism for fixing the end of the pepper branch is arranged at the front end of the lower half shell, and a discharge port is arranged at the lower part of the lower half shell near the rear end, and the discharge port opening and closing control structure is arranged at the discharge port position;

[0010] The collecting and conveying device comprises a conveying pipeline, two groups of collecting mechanisms, a support frame, an output driving mechanism and a conveying support plate; the two groups of collecting mechanisms are installed on the support frame, the conveying pipelines are six and divided into two groups, the two groups of conveying are respectively connected to the input ports of the collecting mechanisms on the left and right sides, and the other ends of the two groups of conveying pipelines are respectively connected to the discharge ports of the cylindrical drying components on the left and right sides; the two groups of collecting mechanisms each comprise a collecting box, a negative pressure conveying mechanism, a supporting plate, and an elastic reset component; the negative pressure conveying mechanism is installed at the top position of the collecting box; the rear end of the supporting plate is hingedly connected to the corresponding collecting box, the front end of the supporting plate extends out from the discharge opening provided at the lower front part of the collecting box, the elastic reset component is provided below the supporting plate, and forms a supporting contact with the lower end of the supporting plate; the output driving mechanism is used to alternately press down the front ends of the two supporting plates so that the pepper grain material is conveyed to the feed interface of the screening device;

[0011] The screening device comprises a drum support, a feed interface, an inner screen drum mechanism, an outer collecting drum, and a straight screen; the outer collecting drum is fixed to the upper end of the drum support, and the inner screen drum mechanism comprises an inner screen drum, two screen rollers installed in the inner screen drum, a screen roller driving mechanism and an inner screen drum driving mechanism; the inner screen drum is rotatably installed in the outer collecting drum; the feed port is installed at one end of the outer collecting drum, and is used to transport the pepper grain material into the inner screen drum; a pepper seed outlet and a pepper shell outlet are respectively provided at the lower part of one end of the outer collecting drum and the opposite end of the inner screen drum; a pepper seed conveying channel and a pepper shell conveying channel are respectively connected between the pepper seed outlet and the material storage area on one side of the straight screen, and between the pepper shell outlet and the material storage area on the other side of the straight screen; the straight screen is installed below the outer collecting drum in a manner that it can vibrate left and right;

[0012] The terminal collecting device includes a collecting bin, which is arranged below the straight screen in a forwardly movable manner. Two separated collecting spaces are arranged in the collecting bin, one of which is used to collect peppercorns that fall from the straight screen, and the other is used to collect pepper shells that fall from the straight screen.

[0013] Moreover: the upper half shell and the lower half shell are connected by a hinge on one side; they are connected in an openable and closable manner by a lock on the other side, and a hydraulic rod for realizing the opening and closing action is connected between the two near the front end; radial baffles are relatively arranged in the upper half shell and the lower half shell near the rear end, and the radial baffles divide the interior of the shell into two chambers, the front chamber is the working chamber, and the rear chamber is the drive component installation chamber.

[0014] Moreover: the picking mechanism includes a picking execution part and a picking drive part, and the picking execution part is composed of two semicircular comb tooth disks, two sets of lead screw nut mechanisms, and two guide rods; radially arranged comb tooth holes are provided on the two semicircular comb tooth disks for the thin branches of the pepper branches to pass through; the two comb tooth disks respectively form a gap-type guiding match with the inner cavity walls of the upper and lower half shells; the two lead screws of the two sets of lead screw nut mechanisms are arranged in parallel, and the front ends of the two lead screws are respectively vertically fixedly connected to the comb tooth disks located in the upper half shell; the ball nuts of the two lead screw nut mechanisms are arranged along the cylindrical outer shell It is rotatably mounted on a radial baffle in the upper shell body in an axially limited manner; the two guide rods are arranged in parallel, and the front ends of the two guide rods are respectively vertically fixedly connected to the comb tooth disk located in the lower shell body; the rear ends of the two guide rods are respectively passed through guide holes on the radial baffle in the lower shell body; through holes for the lead screw and the guide rod to extend out are respectively provided on the rear end end cover of the upper shell body and the rear end end cover of the lower shell body; the picking drive part adopts a synchronous belt transmission mechanism driven by a motor, and synchronous wheels meshing with the synchronous belt are coaxially fixed at the rear ends of the two ball nuts.

[0015] Moreover: the discharge port opening and closing control structure includes a movable baffle, a spring mounting sleeve, and a return spring; the spring mounting sleeve is fixedly connected to the radial baffle in the lower half shell through its rear end, and the rear end of the movable baffle is linearly guided with the front end of the spring mounting sleeve along the axial direction of the drying cylinder, and the return spring is installed in the spring mounting sleeve, and the two ends of the return spring are respectively pressed and contacted with the rear end of the movable baffle and the bottom of the spring mounting sleeve; when the comb tooth disk is located in the front working position, the comb tooth disk is separated from the movable baffle, and the movable baffle is located in the front working position, and the lower part of the movable baffle closes the discharge port on the lower half shell; when the comb tooth disk moves to the front working position, the comb tooth disk contacts the movable baffle, and the movable baffle moves to the rear working position, and the lower part of the movable baffle is misaligned with the discharge port on the lower half shell, so that the discharge port is opened.

[0016] Moreover: the negative pressure feeding mechanism includes a collection drive motor and an impeller; the collection drive motor is fixedly installed at the top position outside the collection box, the impeller is arranged in the inner cavity of the collection box and is located above the filter partition arranged in the collection box, and the impeller is connected to the collection drive motor.

[0017] Moreover: the output drive mechanism includes an output drive motor, a gear, a rack and a rack bracket; the gear is installed on the output shaft of the output drive motor, and the rack is slidably installed on the gear bracket in a manner that it can move in the horizontal direction, and forms a tooth mesh with the gear; wedge-shaped action surfaces are symmetrically arranged at the lower parts of the left and right ends of the rack; in the process of the rack moving to the left, the wedge-shaped action surface on the left side presses against the front end of the left supporting plate, causing the left supporting plate to tilt downward, so that the peppercorns that fall on the left supporting plate fall onto the conveying supporting plate in front; when the rack moves to the right, the wedge-shaped action surface on the right side presses against the front end of the right supporting plate, causing the right supporting plate to tilt downward, so that the peppercorns that fall on the right supporting plate fall onto the conveying supporting plate in front; the conveying supporting plate is fixedly installed at the front ends of the two collecting boxes in a manner that it tilts to the left or right, and an outwardly extending discharge channel is arranged at the lower end near the front.

[0018] Moreover: the outer collecting cylinder is a conical cylinder, and the pepper seed outlet is arranged at the lower part of the lower end of the outer collecting cylinder; the inner screen cylinder is a conical cylinder with end covers at both ends, and filter holes for screening pepper seeds are arranged on its cylinder wall, a feed port is arranged in the center of the end cover at the small end, and the pepper shell outlet is arranged on the end cover at the large end near the edge; the inner screen cylinder is rotatably supported in the outer collecting cylinder through bearings at both ends in a manner opposite to the taper of the outer collecting cylinder; the two screen rollers are conical screen tubes, and the two screen rollers are rotatably installed in the inner screen cylinder in parallel, and the taper direction of the two conical rollers is consistent with the taper direction of the inner screen cylinder; the screen roller driving mechanism adopts a planetary gear mechanism, which is installed on the inner side of the small end of the inner screen cylinder, and is respectively connected to the front end driving connection of the two conical rollers through two planetary wheels, and the outer gear ring of the planetary gear mechanism is fixedly connected to the inner screen cylinder; the drive of the inner screen cylinder is realized by a synchronous belt transmission mechanism arranged on one side of the outer collecting cylinder, and the synchronous belt transmission mechanism is driven by a separate drive motor.

[0019] Moreover: the straight screen is a screen structure with ribs at the rear end and both sides, screen holes at the bottom and a partition plate vertically fixed in the middle of the bottom. The straight screen is supported under the outer collecting cylinder with the front end tilted downward, and vibration springs are respectively connected to the left and right sides of the straight screen, and a vibrator is installed on the outside of one side of the straight screen.

[0020] Moreover: the terminal collection device includes the collection bin, a support baffle and four hydraulic rods; outer edges are arranged on the left and right sides of the upper end of the collection bin; the support baffles are divided into two groups, and support grooves are arranged on the inner sides of the two groups of support baffles respectively, and the support grooves of the two support baffles are respectively plug-fitted with the outer edges on the left and right sides of the collection bin; two hydraulic rods are respectively arranged on the left and right sides of the collection bin, and the two hydraulic cylinders on each side are arranged front and back, and the lower end of each hydraulic rod is hingedly connected to the supporting chassis of the moving device through a hinge seat, and the upper end of each hydraulic rod is hingedly connected to the lower end of the corresponding side support baffle through a hinge seat.

[0021] The present invention has the advantages and positive effects:

[0022] 1. The present invention places the drying step before picking, which can not only realize the integration of drying and picking, but also directly dry the peppercorns on the branches and leaves to ensure that each peppercorn can be heated evenly, and can avoid turning the peppercorns during the drying process.

[0023] 2. The screening and collecting device of the present invention can screen and collect the shells and seeds of Zanthoxylum bungeanum at the same time.

[0024] 3. The multifunctional picking device of the present invention realizes the integrated production of drying, picking, shell and seed screening and separate collection, which reduces the manual operation process as much as possible, reduces the consumption of manpower and improves the collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall structure diagram of the multifunctional green pepper picking machine of the present invention;

[0026] Figure 2 The mobile device structure diagram of the present invention is

[0027] Figure 3 is a top view of the present invention (only part of the structure is shown);

[0028] Figure 4 is a schematic diagram of the appearance of the screening device of the present invention;

[0029] Figure 5 This is the internal structure diagram of the inner screen drum of the present invention;

[0030] Figure 6 It is a structural diagram of the collecting box of the present invention;

[0031] Figure 7 It is a schematic diagram of the cooperation between the output drive mechanism and the supporting plate of the collecting and transmitting device of the present invention;

[0032] Figure 8 is a schematic diagram of the open state of the cylindrical drying component of the present invention;

[0033] Fig. 9It is a schematic diagram of the cylindrical drying assembly of the present invention without the lower half shell and part of the structure;

[0034] Fig.10 It is a schematic diagram of the coordination of the movable baffle and related structural parts at the material outlet of the drying cylinder of the present invention;

[0035] Fig.11 It is a schematic diagram of the coordination of the movable baffle plate and the discharge port at the discharge port of the drying cylinder of the present invention;

[0036] Fig.12 It is a structural schematic diagram of the storage rack of the present invention;

[0037] Fig.13 It is a schematic diagram of the terminal collection device of the present invention.

[0038] Specific implementation methods

[0039] The structure of the present invention is further described below with reference to the accompanying drawings and by way of examples. It should be noted that the present examples are descriptive rather than restrictive.

[0040] A multifunctional green pepper picking machine, see Figure 1-Figure 13 The invention point is: it mainly includes a moving device 5, a drying and picking device 4, a collecting and transmitting device 3, a screening device 2 and a terminal collecting device 1.

[0041] The mobile device 5 comprises a bottom running mechanism 5.3, a supporting chassis 5.2 and two batteries 5.1. The batteries are fixedly mounted on the supporting chassis to provide power to the required devices; the bottom running mechanism can be a crawler-type running mechanism driven by a motor as shown in the attached figure, and the motor is powered by batteries. The other four devices are all mounted on the supporting chassis.

[0042] The drying and picking device is composed of two rows of cylindrical drying components on the left and right and a drying cylinder bracket 4.1. Both the left and right rows of cylindrical drying components are composed of three groups arranged up and down. The drying cylinder bracket includes a middle frame 4.1.1 and two side racks 4.1.2, and the two side racks are connected to the middle frame through hinges 4.1.3. When picking, first turn the two side racks outward and open them, and limit them by the baffles 6 fixed on the outer side of the support chassis; after the branches are fixed in the drying cylinder, turn the two side racks inward to a parallel position, and limit them by the baffles fixed on the inner side of the support chassis. When picking, the three cylindrical drying components on the left and the three cylindrical drying components on the right work together.

[0043] Each drying cylinder assembly is horizontally supported on a drying cylinder bracket along the front-to-back direction. Each cylindrical drying assembly includes an upper shell 4.2.1, a lower shell 4.2.2, a microwave suppressor 4.6, a microwave generator 4.3, a picking mechanism and a movable baffle 4.15. The upper and lower shells are connected on one side by a hinge 4.8 and closed on the other side by a latch 4.9. A hydraulic rod 4.4 is provided between the two to realize the opening and closing action. After the upper shell and the lower shell are closed, an overall cylindrical shell 4.2 structure is formed. A radial baffle 4.19 is provided in the radial direction near the rear end of the two shells. On the one hand, it plays a role in supporting the cylinder body, and on the other hand, it divides the interior of the shell into two cavities, the front cavity is the working cavity, and the rear cavity is the drive component installation cavity.

[0044] End covers are provided at the front and rear ends of the upper and lower shells, respectively. After the upper and lower shells are closed, the two front end covers and the two rear end covers are aligned with each other. A semicircular groove is provided on the front end cover of the upper shell, and a semicircular groove is also provided on the front end cover of the lower shell. The semicircular groove part is extended forward, and two sets of elastic clamping mechanisms are installed on both sides of the extended part to clamp and fix the ends of the cut branches. The elastic clamping mechanism can adopt the matching structure of the clamping rod 4.17 and the clamping spring 4.16. The compression spring compresses the compression rod radially so that the inner end of the compression rod compresses the end of the branch. Two microwave generators 4.3 are fixed on the outer wall of the upper shell corresponding to the two ends of the above-mentioned working cavity. The movable baffle 4.15, the spring mounting sleeve 4.13 and the return spring 4.14 cooperate to realize the opening and closing of the conveying channel. A discharge port 4.11 is provided at the position near the rear end of the lower half shell corresponding to the working chamber, which is used to connect with the collecting and conveying device to discharge the picked peppercorns and miscellaneous leaves. Specifically, the spring mounting sleeve is fixedly connected to the radial baffle in the lower half shell through its rear end, the rear end of the movable baffle cooperates with the front end of the spring mounting sleeve along the axial direction of the drying cylinder in a straight line guide, the return spring is installed in the spring mounting sleeve, and the two ends of the return spring are respectively pressed and contacted with the rear end of the movable baffle and the bottom of the compression spring mounting sleeve.

[0045] Each cylindrical drying assembly is provided with a picking mechanism in the cylindrical shell. The picking mechanism is composed of a picking execution part and a picking driving part. The picking execution part is composed of two semicircular comb tooth disks 4.5, two sets of lead screw nut mechanisms, and two guide rods (not shown in the attached figure); comb tooth holes arranged radially on the left and right are provided on the two semicircular comb tooth disks for the thin branches of the pepper branch to pass through. The two comb tooth disks form a gap-type guiding match with the inner cavity walls of the upper and lower half shells respectively. The two lead screws 4.7 of the two sets of lead screw nut mechanisms are arranged in parallel, and the front ends of the two lead screws are respectively fixedly connected vertically to the output disk located in the upper half shell. The ball nuts 4.12 of the two lead screw nut mechanisms are rotatably mounted on the baffle in the upper half shell in a manner of being axially limited along the cylindrical shell. The two guide rods are arranged in parallel, and the front ends of the two guide rods are respectively fixedly connected vertically to the comb tooth disk located in the lower half shell. The rear ends of the two guide rods are respectively passed through the guide holes on the baffle arranged in the lower half shell. Through holes for the lead screw and the guide rod to extend out are respectively arranged on the rear end cover of the upper half shell and the rear end cover of the lower half shell.

[0046] The picking drive part 4.10 adopts a synchronous belt transmission mechanism driven by a motor, and a synchronous wheel is coaxially fixed to the rear ends of the two ball nuts to transmit power to the corresponding ball nuts.

[0047] The collecting and conveying devices are divided into two groups on the left and right, symmetrically distributed between the drying and picking device 4 and the screening device 2. The group of collecting and conveying devices on the left is connected to the discharge ports 4.11 of the three cylindrical drying components on the left through three conveying pipes, and the group of collecting and conveying devices on the right is connected to the discharge ports 4.11 of the three cylindrical drying components on the right through three conveying pipes.

[0048] The collecting and conveying device 3 comprises a conveying pipeline 3.5, two groups of collecting mechanisms, a support frame 3.3, an output drive mechanism and a conveying support plate. The collecting mechanism is fixed to a height through the support frame so that the material can be conveyed to the screening device. There are six conveying pipelines and they are divided into two groups. The two groups are respectively connected to the input ports of the collecting mechanisms on the left and right sides. The other ends of the two groups of conveying pipelines are respectively connected to the discharge ports of the cylindrical drying components on the left and right sides.

[0049] Both sets of collecting mechanisms include a collecting box 3.4, a collecting drive motor 3.6, an impeller 3.7, a supporting plate 3.9, and an elastic reset assembly. A feed port is provided at the upper end of the collecting box, a filter baffle 3.8 is provided laterally in the middle position inside the collecting box, and a discharge opening is provided at the lower front side of the collecting box. The collecting drive motor is fixedly installed at the top position outside the collecting box, the impeller is arranged in the inner cavity of the collecting box and is located above the filter baffle, and is connected to the collecting drive motor. The supporting plate extends into the collecting box through the discharge opening, its rear end is hinged to the side wall of the collecting box, and its front end extends from the discharge opening of the collecting box. There are at least two sets of elastic resets, both of which are installed on the bottom plate inside the collecting box, and the upper end of the elastic reset assembly is in press contact with the lower end surface of the supporting plate, so that the upper end surface of the supporting plate contacts the upper edge of the discharge opening. The output drive mechanism is installed at the front middle of the left and right collecting boxes, and its function is to alternately drive the front ends of the two stripping plates to press down, so that the peppercorns dropped on the supporting plate are discharged to the conveying supporting plate. The output drive mechanism 3.2 mainly includes an output drive motor 3.14, a gear 3.15, a rack 3.13 and a rack bracket 3.16, wherein the gear is installed on the output shaft of the output drive motor, and the rack is slidably installed on the gear bracket in a movable manner in the horizontal direction, and forms a tooth mesh with the gear. Wedge-shaped action surfaces are symmetrically arranged at the lower parts of the left and right ends of the rack. In the process of the rack moving to the left, the wedge-shaped action surface on the left side presses the front end of the left supporting plate, so that the left supporting plate tilts downward, so that the peppercorns dropped on the left supporting plate fall onto the conveying supporting plate in front, and when the rack moves to the right, the wedge-shaped action surface on the right side presses the front end of the right supporting plate, so that the right supporting plate tilts downward, so that the peppercorns dropped on the right supporting plate fall onto the conveying supporting plate 3.1 in front. The conveying support plate is fixedly installed at the front ends of the two collecting boxes in a manner of tilting to the left or right, and an outwardly extending discharge channel is provided at the lower end near the front, and the discharge of the peppercorns is achieved through the discharge channel.

[0050] The collecting and conveying device is used. When working, the impeller is driven by the collecting drive motor to form a negative pressure, and the material is sucked into the corresponding collecting box through the conveying pipe. After filtering out some leaves through the filter baffle, the material falls to the corresponding supporting plate below. At the same time, the output drive motor drives the rack to move back and forth along a straight line left and right through the gear, so as to realize the alternating downward pressure of the left and right supporting plates, so that the peppercorns fall on the conveying supporting plate, and the peppercorns are transported to the screening device through the discharge channel of the conveying supporting plate. In the above-mentioned process of pressing down the supporting plate, the return spring of the corresponding elastic reset component is compressed. The elastic reset component includes a spring positioning block, a spring and a movable slider. A positioning cavity for accommodating the spring is provided on the spring positioning block. The lower part of the spring is inserted into the positioning cavity. The upper part of the spring is fixedly connected to the movable slider, and contacts with the lower end of the output supporting plate through the movable slider.

[0051] The screening device 2 is used to separate and output the pepper shells and pepper seeds. It mainly includes a tube support 2.11, a feed interface 2.7, an inner screen drum mechanism, an outer collection tube 2.8, and a straight screen 2.1. The outer collection tube is a conical tube, which is fixed to the upper end of the tube support in the horizontal direction, and a pepper seed outlet 2.8.1 is provided at the lower end of the outer collection tube. The inner screen drum mechanism mainly includes an inner screen drum 2.13, two conical screen rollers 2.15, a planetary gear mechanism, and an inner screen drum drive mechanism. The inner screen drum is a conical tube with end covers at both ends, and filter holes are provided on its wall for screening pepper seeds. A feed port is provided at the center of the end cover at the small end, and a pepper shell outlet 2.14 is provided near the edge of the end cover at the large end. The inner screen drum is rotatably supported in the outer collection drum through bearings at both ends in a manner opposite to the taper of the outer collection drum. Two conical screen rollers are rotatably installed in parallel in the inner screen drum, and the taper direction of the two conical rollers is consistent with the taper direction of the inner screen drum; the planetary gear mechanism is installed on the inner side of the small end of the inner screen drum, and is respectively connected to the front end of the two conical rollers through two planetary gears 2.17. The sun gear 2.16 is set in the middle position. The outer ring gear 2.18 of the planetary gear mechanism is fixedly connected to the inner cylinder. As the inner cylinder rotates, the inner ring gear rotates synchronously to transmit power to the planetary gear, drive the two conical screen rollers to rotate, and perform roller extrusion on the peppercorns to separate the shells and seeds. As the conveyor moves backward, the gap between the two rollers gradually becomes smaller, achieving a better separation effect. The drive of the inner screen drum is realized by a synchronous belt transmission mechanism arranged on the outer side of the outer collecting drum, and the synchronous belt transmission mechanism is driven by a separation drive motor. This screening device realizes the diversion screening of peppercorns through the centrifugal force generated by the rotation of the inner screen drum and the extrusion force generated by the rotation of the two conical rollers.

[0052] The straight screen is a screen structure with retaining edges arranged at the rear end and both sides, sieve holes arranged at the bottom surface, and a partition plate fixed vertically in the middle of the bottom surface. The straight screen is supported below the outer collecting cylinder in a manner that the front end is slightly tilted downward. Vibration springs 2.2 are respectively connected to the left and right sides of the straight screen, and a vibrator 2.4 is installed on the outside of one side of the straight screen. The vibrator can be a pneumatic vibrator or an electric vibrator. After the vibrator is started, the left and right vibrations of the straight screen can be realized. Two storage areas separated by a partition plate in the straight screen, one storage area is used to receive the pepper shells discharged from the pepper shell outlet, and the other storage area is used to receive the pepper seeds discharged from the pepper seed outlet. A pepper shell conveying channel is arranged between the pepper shell outlet and the corresponding storage area, and a pepper seed conveying channel is arranged between the pepper seed outlet and the corresponding storage area. The pepper shell conveying channel and the pepper seed conveying channel can both adopt, but are not limited to, a channel structure formed by bending a channel steel.

[0053] In addition, a pneumatic impurity blowing device is provided above the straight screen near the rear end to blow away impurity branches and leaves mixed in the pepper seeds and pepper shells. The pneumatic impurity blowing device can be a fan 2.6, an air supply pipe 2.5 connected to the fan, and an air blowing row 2.3 connected to the air supply pipe, and an air blowing port is arranged on the blowing row.

[0054] The terminal collecting device can collect pepper seeds and pepper shells at the same time. The collecting device is arranged above the supporting chassis as a whole and below the straight screen. It includes a collecting bin 1.1, a supporting baffle 1.2 and four hydraulic rods 1.3. The trolley is provided with two separated collecting spaces, one of which is used to collect pepper seeds that fall from the straight screen, and the other is used to collect pepper shells that fall from the straight screen. Outer edges are arranged on the left and right sides of the upper end of the collecting bin. There are two groups of supporting baffles, and the inner sides of the two groups of supporting baffles are respectively provided with supporting grooves, and the supporting grooves of the two supporting baffles are respectively plug-fitted with the outer edges of the left and right sides of the collecting bin. Two left and right hydraulic rods are respectively arranged outside the left and right sides of the collecting bin, and the two hydraulic cylinders on each side are arranged front and back. The lower end of each hydraulic rod is hinged to the supporting chassis through a hinge seat, and the upper end of each hydraulic rod is hinged to the lower end of the corresponding side supporting baffle through a hinge seat. When working, the collecting bin is located below the straight screen. After the collection is completed, the collecting bin can be moved out by extending the hydraulic rod, so that it is convenient to disassemble the collecting bin and pour out the pepper seeds and pepper shells.

[0055] The working principle and workflow of the present invention are:

[0056] The operator moves the picking machine to the corresponding position of the pepper tree through the moving device, unfolds the baffles on both sides of the drying drum bracket, opens the upper shell of the drying and picking device, cuts off the branches on the green pepper with a tool, fixes the branches into the drying device, closes the upper shell, fixes the pepper in the device and locks it through the spring clamping mechanism and the lock. When the three groups of cylindrical drying components on the same side of the drying drum bracket are placed with pepper branches, turn on the power, and similarly install the other side and turn on the power.

[0057] After the power is turned on, the microwave generator starts to operate and dries the peppercorns. When the drying degree is reached, the control motor of the picking mechanism starts to operate, and the ball nut drives the lead screw installed with the comb plate to move along the branches, bringing the peppercorns down and concentrating them on one side. When the comb teeth contact the baffle, the conveying channel is opened under the joint action of the return spring, and the lead screw stops moving after completing the set stroke. After the control motor stops running, the control motor on the collection and conveying device works to collect the peppercorns in the three picking devices on the same side through the pipeline into the collection box. After the collection is completed, the control motor stops working, and the output drive motor operates to press down the return spring in the collection box through the movement between the gear and the rack, and the peppercorns on the baffle are moved along the conveying plate to the screening device.

[0058] Sichuan pepper enters the inner screen from the feed port of the screening device. The motor drives the inner screen to rotate through the shell belt. At the same time, the conical screen roller in the inner screen rotates in the opposite direction. The separation of Sichuan pepper seeds and shells is improved through squeezing and striking. The Sichuan pepper shells remain in the inner screen, and the Sichuan pepper seeds fall into the outer collection cylinder. They are sent to the straight screen through the two discharge ports along the corresponding conveying channels. The straight screen performs secondary screening of the Sichuan pepper through the vibration of the vibrator. At the same time, the fan connected to the straight screen blows out the miscellaneous branches and leaves in the Sichuan pepper, and the Sichuan pepper seeds and Sichuan pepper shells fall into different areas of the collection bin. When the collection bin is filled with Sichuan pepper, the material in the trolley is poured out through the four-bar linkage formed by the hydraulic rod.

[0059] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A multifunctional green pepper picking machine, characterized by: It includes a moving device, a drying and picking device, a collecting and transmitting device, a screening device and a terminal collecting device; the drying and picking device, the collecting and transmitting device and the screening device are sequentially installed on the moving device from back to front, and the terminal collecting device is installed on the moving device and is located below the screening device; The drying and picking device comprises a drying drum support and a cylindrical drying assembly mounted on the drying drum support, the cylindrical drying assembly has two left and right columns, each column is composed of three groups arranged up and down; the cylindrical drying assembly comprises an upper half shell, a lower half shell, a microwave suppressor, a microwave generator, a picking mechanism and a discharge port opening and closing control structure; the upper half shell and the lower half shell are connected in an openable and closable manner to form a drying drum; the microwave suppressor and the microwave generator are mounted on the upper shell; the picking mechanism is installed in the drying drum and is a grain picking mechanism that can perform linear motion along the axial direction of the drum; a clamping mechanism for fixing the end of the pepper branch is arranged at the front end of the lower half shell, and a discharge port is arranged at the lower part of the lower half shell near the rear end, and the discharge port opening and closing control structure is arranged at the discharge port position; The picking mechanism includes a picking execution part and a picking drive part, and the picking execution part is composed of two semicircular comb tooth disks, two sets of lead screw nut mechanisms, and two guide rods; radially arranged comb tooth holes are provided on the two semicircular comb tooth disks for the thin branches of the pepper branches to pass through; the two comb tooth disks respectively form a gap-type guiding match with the inner cavity walls of the upper and lower half shells; the two lead screws of the two sets of lead screw nut mechanisms are arranged in parallel, and the front ends of the two lead screws are respectively vertically fixedly connected to the comb tooth disks located in the upper half shell; the ball nuts of the two sets of lead screw nut mechanisms are arranged along the cylindrical outer shell The axial limiter is rotatably mounted on the radial baffle in the upper shell; the two guide rods are arranged in parallel, and the front ends of the two guide rods are respectively vertically fixedly connected to the comb tooth disk in the lower shell; the rear ends of the two guide rods are respectively passed through the guide holes arranged on the radial baffle in the lower shell; through holes for the lead screw and the guide rod to extend are respectively arranged on the rear end cover of the upper shell and the rear end cover of the lower shell; the picking drive part adopts a synchronous belt transmission mechanism driven by a motor, and synchronous wheels meshing with the synchronous belt are coaxially fixed at the rear ends of the two ball nuts; The collecting and transmitting device comprises a conveying pipeline, two groups of collecting mechanisms, a supporting frame, an output driving mechanism and a conveying support plate; the two groups of collecting mechanisms are installed on the supporting frame, the conveying pipelines are six and divided into two groups, the two groups of conveying pipelines are respectively connected to the input ports of the collecting mechanisms on the left and right sides, and the other ends of the two groups of conveying pipelines are respectively connected to the discharge ports of the cylindrical drying components on the left and right sides; the two groups of collecting mechanisms each comprise a collecting box, a negative pressure conveying mechanism, a supporting plate and an elastic reset component; the negative pressure conveying mechanism is installed at the top position of the collecting box; the rear end of the supporting plate is hingedly connected to the corresponding collecting box, the front end of the supporting plate extends out from the discharge opening provided at the lower front part of the collecting box, the elastic reset component is provided below the supporting plate and forms a supporting contact with the lower end of the supporting plate; the output driving mechanism is used to alternately press down the front ends of the two supporting plates so that the pepper grain material is conveyed to the feed interface of the screening device; The screening device comprises a drum support, a feed interface, an inner screen drum mechanism, an outer collecting drum, and a straight screen; the outer collecting drum is fixed to the upper end of the drum support, and the inner screen drum mechanism comprises an inner screen drum, two screen rollers installed in the inner screen drum, a screen roller driving mechanism and an inner screen drum driving mechanism; the inner screen drum is rotatably installed in the outer collecting drum; the feed interface is installed at one end of the outer collecting drum, and is used to transport the pepper grain material into the inner screen drum; a pepper seed outlet and a pepper shell outlet are respectively provided at the lower part of one end of the outer collecting drum and the opposite end of the inner screen drum; a pepper seed conveying channel and a pepper shell conveying channel are respectively connected between the pepper seed outlet and the material storage area on one side of the straight screen, and between the pepper shell outlet and the material storage area on the other side of the straight screen; the straight screen is installed below the outer collecting drum in a manner that it can vibrate left and right; The terminal collecting device includes a collecting bin, which is arranged below the straight screen in a forwardly movable manner. Two separated collecting spaces are arranged in the collecting bin, one of which is used to collect peppercorns that fall from the straight screen, and the other is used to collect pepper shells that fall from the straight screen.

2. The multifunctional green pepper picking machine according to claim 1 is characterized in that: The upper shell and the lower shell are connected by a hinge on one side; they are connected in an openable and closable manner by a lock on the other side, and a hydraulic rod for realizing the opening and closing action is connected between the two near the front end; radial baffles are relatively arranged in the upper shell and the lower shell near the rear end, and the radial baffles divide the interior of the shell into two chambers, the front chamber is the working chamber, and the rear chamber is the drive component installation chamber.

3. The multifunctional green pepper picking machine according to claim 1 is characterized in that: The discharge port opening and closing control structure includes a movable baffle, a spring mounting sleeve, and a return spring; the spring mounting sleeve is fixedly connected to the radial baffle in the lower half shell through its rear end, and the rear end of the movable baffle is linearly guided with the front end of the spring mounting sleeve along the axial direction of the drying cylinder, and the return spring is installed in the spring mounting sleeve, and the two ends of the return spring are respectively pressed and contacted with the rear end of the movable baffle and the bottom of the spring mounting sleeve; when the comb tooth disk is located in the front working position, the comb tooth disk is separated from the movable baffle, and the movable baffle is located in the front working position, and the lower part of the movable baffle closes the discharge port on the lower half shell; when the comb tooth disk moves to the front working position, the comb tooth disk contacts the movable baffle, and the movable baffle moves to the rear working position, and the lower part of the movable baffle is misaligned with the discharge port on the lower half shell, so that the discharge port is opened.

4. The multifunctional green pepper picking machine according to claim 1 is characterized in that: The negative pressure feeding mechanism includes a collection drive motor and an impeller; the collection drive motor is fixedly installed at the top position outside the collection box, the impeller is arranged in the inner cavity of the collection box and is located above the filter partition arranged in the collection box, and the impeller is connected to the collection drive motor.

5. The multifunctional green pepper picking machine according to claim 4 is characterized in that: The output drive mechanism includes an output drive motor, a gear, a rack and a rack bracket; the gear is installed on the output shaft of the output drive motor, and the rack is slidably installed on the gear bracket in a manner that it can move in the horizontal direction, and forms a tooth mesh with the gear; wedge-shaped action surfaces are symmetrically arranged at the lower parts of the left and right ends of the rack; when the rack moves to the left, the wedge-shaped action surface on the left side presses against the front end of the left supporting plate, causing the left supporting plate to tilt downward, so that the peppercorns that fall on the left supporting plate fall onto the conveying supporting plate in front; when the rack moves to the right, the wedge-shaped action surface on the right side presses against the front end of the right supporting plate, causing the right supporting plate to tilt downward, so that the peppercorns that fall on the right supporting plate fall onto the conveying supporting plate in front; the conveying supporting plate is fixedly installed at the front ends of the two collecting boxes in a manner that it tilts to the left or right, and an outwardly extending discharge channel is arranged at the lower end near the front.

6. The multifunctional green pepper picking machine according to claim 1 is characterized in that: The outer collecting cylinder is a conical cylinder, and the pepper seed outlet is arranged at the lower part of the lower end of the outer collecting cylinder; the inner screen cylinder is a conical cylinder with end covers at both ends, and filter holes for screening pepper seeds are arranged on its cylinder wall, a feed port is arranged at the center of the end cover at the small end, and the pepper shell outlet is arranged near the edge of the end cover at the large end; the inner screen cylinder is rotatably supported in the outer collecting cylinder through bearings at both ends in a manner opposite to the taper of the outer collecting cylinder; the two screen rollers are conical screen tubes, and the two screen rollers are rotatably installed in the inner screen cylinder in parallel, and the taper direction of the two conical rollers is consistent with the taper direction of the inner screen cylinder; the screen roller driving mechanism adopts a planetary gear mechanism, which is installed on the inner side of the small end of the inner screen cylinder, and is respectively connected to the front end driving connection of the two conical rollers through two planetary wheels, and the outer gear ring of the planetary gear mechanism is fixedly connected to the inner screen cylinder; the drive of the inner screen cylinder is realized by a synchronous belt transmission mechanism arranged on one side of the outer collecting cylinder, and the synchronous belt transmission mechanism is driven by a separate drive motor.

7. The multifunctional green pepper picking machine according to claim 6 is characterized in that: The straight screen is a screen structure with ribs at the rear end and both sides, screen holes at the bottom and a partition plate vertically fixed in the middle of the bottom. The straight screen is supported under the outer collecting cylinder with the front end tilted downward. Vibration springs are respectively connected to the left and right sides of the straight screen, and a vibrator is installed on the outside of one side of the straight screen.

8. The multifunctional green pepper picking machine according to claim 1 is characterized in that: The terminal collection device also includes a support baffle and four hydraulic rods; outer edges are arranged on the left and right sides of the upper end of the collection bin; the support baffles are divided into two groups, and support grooves are respectively arranged on the inner sides of the two groups of support baffles, and the support grooves of the two support baffles are respectively plug-in matched with the outer edges on the left and right sides of the collection bin; two hydraulic rods are respectively arranged on the left and right sides of the collection bin, and the two hydraulic cylinders on each side are arranged front and back, and the lower end of each hydraulic rod is hingedly connected to the supporting chassis of the moving device through a hinge seat, and the upper end of each hydraulic rod is hingedly connected to the lower end of the corresponding side support baffle through a hinge seat.

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