Automatic seed unpacking machine

Abstract

The present invention discloses an automatic seed unpacking machine, comprising an outer frame, wherein a crushing part, a rotary drum mechanism, and a feeding part are arranged inside the outer frame; the crushing part is arranged above one end of the outer frame; the rotary drum mechanism is horizontally placed inside the outer frame, with one end below the crushing part, and receives the seed packaging bag cut by the crushing part; wherein the rotary drum mechanism comprises two concentrically arranged inner and outer drums, and an adjusting part; in the present invention, the original single-layer rotary drum is improved to an inner and outer double-drum structure, and by rotating the inner and outer double drums to cause them to be misaligned, the aperture size can be accurately and flexibly adjusted, so as to find a suitable discharge channel according to the particle size of the seed itself, truly realizing the need of one machine adapting to a variety of different seed particle sizes, significantly improving the versatility of the equipment in various seed unpacking scenarios, and greatly broadening its application range.

Description

Technical Field

[0001] The invention belongs to the technical field of seed unpacking machines, and particularly relates to an automatic seed unpacking machine. Background Art

[0002] In traditional agriculture, horticulture, seed processing and other industries, seeds are packaged in various forms and are mostly sealed bags. In the past, seed unpacking mostly relied on manual operation, which was not only inefficient but also difficult to meet the needs of large-scale production. With the acceleration of agricultural modernization, the requirements for automation and intelligence in seed processing are increasing. Against this background, automatic seed unpacking machines came into being. Seed unpacking machines are efficient mechanical equipment used to unpack bagged seed materials. They can realize automated operation, thereby significantly improving unpacking efficiency and accuracy, while reducing labor costs and labor intensity.

[0003] Seed bag openers play a crucial role in the current seed processing industry. Common seed bag openers primarily utilize a perforated drum to perform their unpacking function. During operation, the drum continuously rotates, generating friction and force to flip the broken packaging bags, allowing the seeds inside to be smoothly discharged through the perforations on the drum's surface, completing the unpacking process.

[0004] However, seed unpacking machines have a wide range of applications, covering a wide range of agricultural and flower seeds, as well as cash crop seeds. These different seed types exhibit significant variations in particle size, shape, and texture. However, existing rotary drum designs have significant shortcomings. Their surface apertures are fixed and cannot be flexibly adjusted to the characteristics of the seeds being unpacked. This results in poor seed discharge, with some seeds becoming stuck in the holes, or small seeds being blocked by large holes, causing broken plastic strips from the packaging bag to become lodged when passing through them. This is more difficult to clean than a small hole blockage. Summary of the Invention

[0005] The object of the present invention is to provide an automatic seed unpacking machine to solve the problem in the above-mentioned background technology that the existing unpacking machine cannot dynamically adjust its own aperture according to different types of seeds.

[0006] To achieve the above object, the present invention provides the following technical solution: an automatic seed unpacking machine, comprising an outer frame, wherein a crushing member, a rotary drum mechanism, and a blanking member are arranged inside the outer frame;

[0007] The crushing member is arranged above one end of the outer frame;

[0008] The rotary drum mechanism is horizontally placed in the outer frame, with one end located below the crushing member and receiving the seed packaging bag cut by the crushing member;

[0009] The rotating cylinder mechanism includes two concentrically arranged inner cylinders, outer cylinders, and an adjusting member;

[0010] The outer cylinder is sleeved on the inner cylinder, and the middle area of ​​the outer cylinder rotates on the same plane as the inner cylinder, while the two ends of the outer cylinder are rotated on the inner cylinder, and the two ends and the middle part of the outer cylinder are flexibly connected;

[0011] The adjusting member is mounted on the outer frame, and the output portion of the adjusting member abuts against the two end positions of the outer cylinder. After being limited by the adjusting member, the two end positions of the outer cylinder form an angle difference with the inner cylinder.

[0012] As a preferred technical solution of the present invention, the outer cylinder includes an outer rotating cylinder, a threaded sleeve, and a retaining ring;

[0013] The outer rotating cylinder constitutes the middle area of ​​the outer cylinder, and short rods are fixed at equal angles on both end surfaces of the outer rotating cylinder to ensure that after the threaded sleeve rotates, the outer rotating cylinder can be driven to rotate through the short rods. The short rods are connected to the threaded sleeve;

[0014] The surface of the threaded sleeve is provided with an arc groove for the short rod to move through, and a reset member is also provided in the arc groove. The two ends of the reset member are elastically abutted against the short rod and the inner wall of one end of the arc groove respectively. When the threaded sleeve rotates, the reset member will synchronously drive the short rod to rotate, and then the short rod will drive the outer rotating cylinder to rotate, thereby adjusting the offset of the angles of the inner rotating cylinder and the outer rotating cylinder to achieve the purpose of changing the aperture between the two;

[0015] The retaining ring is located in the inner area of ​​the short rod, and the two do not contact each other to avoid mutual interference. Two retaining rings are provided and fixed on the inner cylinder. In the mass production of this device, the fixing method here can be customized according to the use requirements of different manufacturers, using a threaded connection method, or using interference fitting or spot welding to install; the retaining ring is limited and fit with the end faces of both ends of the outer rotating cylinder, and the position of the outer rotating cylinder can be limited by the retaining ring to ensure that the outer rotating cylinder will not follow the threaded sleeve to make axial lateral displacement when deflected, and to ensure that the aperture of the outer rotating cylinder and the inner cylinder surface will not be axially misaligned. The specific working process is as follows:

[0016] When the threaded sleeve is counteracted by the adjusting piece, the rotation speeds of the inner cylinder and the threaded sleeve are inconsistent, that is, the rotation speed of the threaded sleeve is less than the rotation speed of the inner cylinder. At this time, the threaded sleeve will rotate on the inner cylinder and stop rotating after the adjusting piece is separated. At this time, the angle of the threaded sleeve will also change. After the angle of the threaded sleeve changes, the short rod will be rotated synchronously through the reset piece, and the outer rotating cylinder will be driven by the short rod to rotate. At this time, the outer rotating cylinder can only rotate radially under the limit of the retaining ring and will not follow the axial transverse movement of the threaded sleeve. Therefore, the threaded sleeve will move axially on the short rod on the premise of being pressed against the short rod by the reset piece, so that the radial adjustment of the angle of the outer rotating cylinder can be achieved, and it can also ensure that the outer rotating cylinder and the inner cylinder can still rotate synchronously after adjustment.

[0017] During feeding, when the seeds are stuck in the through hole between the inner cylinder and the outer rotating cylinder, the inner diameter of the through hole between the inner cylinder and the outer rotating cylinder can be expanded by rotating the entire outer cylinder, so that the seeds can be separated by gravity or with the help of the centrifugal force generated by the inner cylinder. This can be achieved without stopping the machine. This function can also be extended to the application of switching when feeding different seeds.

[0018] As a preferred technical solution of the present invention, the reset member includes a limit spring and an arc plate;

[0019] The arc-shaped plate is made of nitrile rubber, which has good wear resistance and strength. Its inner side is concave and fits perfectly with the surface of the short rod.

[0020] There are multiple limit springs, and the limit springs are arc-shaped as a whole and are completely adapted in the arc groove, that is, the limit springs can only be compressed along the arc on the inner side of the arc groove. One end of the limit spring is connected to the outer side of the arc plate, and the other end is fixed to the inner wall of the arc groove. The elastic force generated by all the limit springs after the threaded sleeve rotates should be greater than the mass of the outer rotating cylinder and the short rod and the centrifugal force generated by the outer rotating cylinder when it is rotated by the inner cylinder. The outer rotating cylinder is made of a lightweight aluminum alloy structure, so the requirements for the number and elastic performance of the limit springs are reduced.

[0021] As a preferred technical solution of the present invention, the inner cylinder is an inner rotating cylinder, and holes are opened on the surface of the inner rotating cylinder and the outer rotating cylinder, wherein the shape of the holes is circular, oval or prismatic. By setting different hole shapes, production changes can be made according to the actual needs of different manufacturers. Threaded portions are opened at both ends of the inner rotating cylinder, and the two threaded sleeves are screwed onto the threaded portions at corresponding positions;

[0022] The inner wall of the inner rotating cylinder is distributed with multiple spiral sheets in the form of a thread line, and a convex ring is fixedly provided at one end of the inner rotating cylinder, and a belt is provided on the outside of the convex ring; a servo motor is provided on the outer frame, and a pulley for driving the belt is installed on the output end of the servo motor. The belt is driven to rotate by the pulley, and the convex ring is driven to rotate by the belt, thereby realizing the rotation of the inner rotating cylinder.

[0023] As a preferred technical solution of the present invention, the adjusting member includes a cylinder, a push plate and a limiting portion;

[0024] The cylinder is mounted on the outer frame, and the output end passes through the outer frame to just above the outer tube;

[0025] The push plate is fixed on the output end of the cylinder and is arranged parallel to the outer cylinder. Convex plates are fixed on the bottom of both ends of the push plate.

[0026] The limiting part is composed of a connecting part and a resisting part;

[0027] The connecting piece is movably connected to the convex plate in the horizontal direction, and the resisting piece is flexibly arranged below the connecting piece and resists against the outer surface of the threaded sleeve.

[0028] As a preferred technical solution in the present invention, the connecting member includes an inverted L-shaped connecting rod, the horizontal part of the connecting rod movably passes through the convex plate, and a transverse spring is also sleeved on the horizontal part of the connecting rod, one end of the transverse spring is abutted against one side of the convex plate, and the other end is limited at the corner of the connecting rod; a limiting head is also formed at one end of the connecting rod passing through the convex plate, and the limiting head is limited and locked on the other side of the convex plate, and the resistance member is arranged below the vertical part of the connecting rod.

[0029] As a preferred technical solution of the present invention, the resisting member includes a rubber block, a sleeve, and a vertical spring;

[0030] The rubber block is arc-shaped and abuts against the surface of the threaded sleeve when the push plate descends, thereby reducing the rotation of the threaded sleeve and forcing the threaded sleeve to rotate in the threaded area on the inner rotating cylinder. The rubber block is made of nitrile rubber and is a consumable part. It needs to be replaced after a certain period of use.

[0031] The sleeve is a hollow cylinder, the top of which is movably sleeved under the vertical portion of the connecting rod, while the bottom of the vertical spring is fixed to the rubber block; the vertical spring is arranged on the inner side of the sleeve, and the two ends of the vertical spring are fixed to the rubber block and the bottom end of the connecting rod, wherein the top of the vertical spring is fixed to the bottom end of the vertical portion of the connecting rod by welding, and the bottom end of the sleeve is installed by embedding in the rubber block. In actual use, the vertical spring can be set as an independent structure without being fixedly connected to any structure. It is only necessary to open a strip groove on the surface of the sleeve from top to bottom, and then pass a structure such as a boss through the strip groove and fix it on the vertical portion of the connecting rod to achieve the vertical spring moving on the connecting rod without falling, and to compress the vertical spring;

[0032] Here is an explanation of the working principle of the adjusting part: the cylinder drives the push plate and the convex plate to descend. At this time, the convex plate drives the connecting rod and the rubber block to descend. When the rubber block presses against the threaded sleeve and slows down the rotation of the threaded sleeve, the vertical spring is in a compressed state. In the compressed state, the vertical spring can continue to be compressed. When the compression amount is greater, the extrusion force of the rubber block on the threaded sleeve is greater. This method of adjusting the downward pressure by compressing the vertical spring is more relaxed than directly outputting the pressure through the push plate, and avoids the pressure directly input by the cylinder from stopping the threaded sleeve through the rubber block, thereby causing the rotation angle between the inner rotating cylinder and the threaded sleeve to be too large.

[0033] When the threaded sleeve is rotated in the threaded area, the threaded sleeve will move in the axial direction of the inner rotating cylinder. At this time, the threaded sleeve can drive the connecting rod to move in the same direction, reducing the risk of the threaded sleeve being stuck after being pressed by the rubber block. The movement direction of the threaded sleeve is in the direction of the compression state of the transverse spring. Through the setting of the transverse spring, it can be ensured that the connecting rod automatically returns to its original position after the rubber block and the threaded sleeve are separated.

[0034] As a preferred technical solution in the present invention, the inner width of the arc groove is equal to the diameter of the short rod, and one end of the short rod extends to the outside of the threaded sleeve, thereby ensuring that the threaded sleeve can still contact the short rod when it moves axially with the external rotating cylinder.

[0035] As a preferred technical solution in the present invention, the outer frame includes a frame, the side of the frame is provided with an openable side panel, the top of the frame is also installed with an exhaust fan, the exhaust fan is connected to the interior of the frame, and is used to adsorb and discharge dust generated during the seed splitting process, the bottom of the frame is also installed with a discharge port, the discharge port is located directly below the rotary drum mechanism, and is used to discharge the separated seeds, and a discharge hopper is also provided at one end of the frame, the discharge hopper is located in the direction of the discharge port of the inner rotary drum, and the discharge hopper is used to guide out the discharged packaging bags.

[0036] As a preferred technical solution in the present invention, the crushing part includes a crushing cutter disc arranged inside the frame, and a cutter disc motor fixed on the top side of the crushing cutter disc. The crushing cutter disc is installed on the output end of the cutter disc motor. During use, the planting packaging bag containing seeds is put into the crushing cutter disc, then cut by the crushing cutter disc, and then introduced into the rotary drum mechanism for subsequent processing.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] In the present invention, the original single-layer rotary drum is improved into an inner and outer double-drum structure. By rotating the inner and outer double drums to create misalignment, the aperture size can be accurately and flexibly adjusted, thereby finding the appropriate discharge channel according to the seed particle size. This truly realizes the need to adapt a machine to a variety of different seed particle sizes, significantly improving the versatility of the equipment in various seed unpacking scenarios and greatly broadening its application range.

[0039] At the same time, during the seed unpacking process, if a blockage occurs, it is only necessary to easily perform a rotation and dislocation operation to expand the aperture. The seeds can then be automatically unblocked under the natural traction of gravity or with the help of the strong centrifugal force generated by the rotation of the drum. The entire process does not require stopping the machine for manual cleaning, which not only saves a lot of manpower and time costs, but also ensures the continuity and efficiency of the unpacking work.

[0040] Through this dynamic adaptive aperture adjustment method, the physical limitations of traditional fixed-aperture rollers have been successfully broken through, bringing more efficient and convenient solutions to the seed processing industry and promoting the industry to move towards intelligence and automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the overall structure of the automatic seed unpacking machine;

[0042] Figure 2 This is a structural diagram of the automatic seed unpacking machine in the standard state;

[0043] Figure 3 Schematic diagram of the structure of the inner rotating cylinder and the outer rotating cylinder in assembly;

[0044] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle;

[0045] Figure 5 Schematic diagram of the connection between the curved plate and the short rod;

[0046] Figure 6 It is a structural diagram of the inner rotating cylinder;

[0047] Figure 7 It is a schematic diagram of the connection between the external rotating cylinder and the threaded sleeve;

[0048] Figure 8 It is a cross-sectional view of the inner rotating cylinder and the outer rotating cylinder in the connected state;

[0049] Figure 9 for Figure 8 Schematic diagram of the enlarged area B.

[0050] In the picture:

[0051] 100, rack;

[0052] 101, crushing cutter disc; 101a, cutter disc motor;

[0053] 102, side panel; 103, servo motor; 104, discharge hopper; 105, discharge port;

[0054] 200, cylinder;

[0055] 201, push plate; 201a, convex plate;

[0056] 202, connecting rod; 202a, limiting head;

[0057] 203, rubber block; 204, sleeve; 205, transverse spring; 206, vertical spring;

[0058] 301, inner rotating cylinder; 301a, threaded portion; 301b, convex ring; 301c, spiral sheet;

[0059] 302, external rotating cylinder; 302a, short rod;

[0060] 303, threaded sleeve; 303a, arc groove;

[0061] 304, retaining ring; 305, limit spring; 306, arc plate;

[0062] 400. Exhaust fan. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0064] See also Figures 1 to 9 , the present invention provides a technical solution: an automatic seed unpacking machine, comprising an outer frame, in which a crushing part, a rotary drum mechanism, and a blanking part are arranged;

[0065] The crushing member is arranged above one end of the outer frame;

[0066] The rotary drum mechanism is horizontally placed in the outer frame, with one end located below the crushing member and receiving the seed packaging bag cut by the crushing member;

[0067] The rotating cylinder mechanism includes two concentrically arranged inner cylinders, outer cylinders, and an adjusting member;

[0068] The outer cylinder is sleeved on the inner cylinder, and the middle area of ​​the outer cylinder rotates on the same plane as the inner cylinder, while the two ends of the outer cylinder are rotated on the inner cylinder, and the two ends and the middle part of the outer cylinder are flexibly connected;

[0069] The adjusting member is mounted on the outer frame, and the output portion of the adjusting member abuts against the two end positions of the outer cylinder. After being limited by the adjusting member, the two end positions of the outer cylinder form an angle difference with the inner cylinder.

[0070] In this embodiment, refer to Figure 3 、 Figure 4 、 Figure 7 The outer cylinder includes an outer rotating cylinder 302, a threaded sleeve 303, and a retaining ring 304;

[0071] The outer rotating cylinder 302 constitutes the middle area of ​​the outer cylinder. Short rods 302a are fixed at equal angles on the end surfaces of both ends of the outer rotating cylinder 302. Preferably, there are five short rods 302a. This ensures that after the threaded sleeve 303 rotates, the outer rotating cylinder 302 can be driven to rotate by the short rods 302a. The short rods 302a are connected to the threaded sleeve 303.

[0072] The surface of the threaded sleeve 303 is provided with an arc groove 303a for the short rod 302a to move through. A reset member is also provided in the arc groove 303a. The two ends of the reset member elastically abut against the short rod 302a and the inner wall of one end of the arc groove 303a, respectively. When the threaded sleeve 303 rotates, the reset member synchronously drives the short rod 302a to rotate, and the short rod 302a then drives the outer rotating cylinder 302 to rotate, thereby adjusting the angular offset of the inner rotating cylinder 301 and the outer rotating cylinder 302, thereby achieving the purpose of changing the aperture between the two.

[0073] The retaining ring 304 is located in the inner area of ​​the short rod 302a, and the two do not contact each other to avoid interference. The retaining ring 304 is provided with two and is fixed on the inner cylinder. In the mass production of this device, the fixing method here can be customized according to the use requirements of different manufacturers, using a threaded connection method, or using an interference fit or spot welding method for installation; the retaining ring 304 is limited and fit with the end faces of the outer rotating cylinder 302 at both ends. The retaining ring 304 can limit the position of the outer rotating cylinder 302, ensuring that the outer rotating cylinder 302 will not follow the threaded sleeve 303 to make axial lateral displacement when deflected, and ensuring that the aperture of the outer rotating cylinder 302 and the inner cylinder surface will not be axially misaligned. The specific working process is as follows:

[0074] When the screw sleeve 303 is pressed against the adjusting member, the rotation speeds of the inner cylinder and the screw sleeve 303 are inconsistent, that is, the rotation speed of the screw sleeve 303 is less than the rotation speed of the inner cylinder. At this time, the screw sleeve 303 will rotate on the inner cylinder and stop rotating after the adjusting member is separated. At this time, the angle of the screw sleeve 303 will also change. After the angle of the screw sleeve 303 changes, the short rod 302a will be rotated synchronously by the reset member, and the outer cylinder 302 will be driven by the short rod 302a to rotate. At this time, the outer cylinder 302 can only rotate radially under the limitation of the retaining ring 304, and will not follow the axial transverse movement of the screw sleeve 303. Therefore, the screw sleeve 303 will be able to move axially on the short rod 302a under the premise of being pressed against the short rod 302a by the reset member, thereby achieving radial adjustment of the angle of the outer cylinder 302 and ensuring that the outer cylinder 302 and the inner cylinder can still rotate synchronously after adjustment.

[0075] During feeding, when the seeds are stuck in the through hole between the inner cylinder and the outer rotating cylinder 302, the inner diameter of the through hole between the inner cylinder and the outer rotating cylinder 302 can be expanded by rotating the entire outer cylinder, so that the seeds can be separated by gravity or with the help of the centrifugal force generated by the inner cylinder. This can be achieved without stopping the machine. This function can also be extended to the application of switching when feeding different seeds.

[0076] In this embodiment, refer to Figure 4 and Figure 5 , the reset member includes a limit spring 305 and an arc plate 306;

[0077] The arc-shaped plate 306 is made of nitrile rubber, which has good wear resistance and strength. Its inner side is concave and fits perfectly with the surface of the short rod 302a.

[0078] There are multiple limit springs 305, seven of which are shown in the figure. The limit springs 305 are arc-shaped as a whole and are completely adapted to the arc groove 303a, that is, the limit springs 305 can only be compressed along the arc inside the arc groove 303a. One end of the limit spring 305 is connected to the outer side of the arc plate 306, and the other end is fixed to the inner wall of the arc groove 303a. The elastic force generated by all the limit springs 305 after the threaded sleeve 303 rotates should be greater than the mass of the outer rotating cylinder 302 and the short rod 302a, and the centrifugal force generated by the outer rotating cylinder 302 when it is rotated by the inner cylinder. The outer rotating cylinder 302 is made of a lightweight aluminum alloy structure, so the requirements for the number and elastic performance of the limit springs 305 are reduced.

[0079] In this embodiment, refer to Figure 6The inner cylinder is an inner rotating cylinder 301. The inner rotating cylinder 301 and the outer rotating cylinder 302 are both provided with holes on their surfaces. The holes are circular, elliptical or prismatic in shape. By setting different hole shapes, production changes can be made according to the actual needs of different manufacturers. Threaded parts 301a are provided at both ends of the inner rotating cylinder 301. Two threaded sleeves 303 are screwed onto the threaded parts 301a at corresponding positions.

[0080] The inner wall of the inner rotating cylinder 301 is provided with a plurality of spiral pieces 301c in the form of a spiral line, and a convex ring 301b is fixed at one end of the inner rotating cylinder 301. The outer portion of the convex ring 301b is provided with a belt. The belt is not marked. The specific position of the belt can be referred to in FIG. Figure 3 A servo motor 103 is provided on the outer frame, and a pulley for driving a belt is installed on the output end of the servo motor 103, wherein the pulley is not drawn in the figure. The belt is driven to rotate by the pulley, and the belt drives the convex ring 301b to rotate, thereby realizing the rotation of the inner rotating cylinder 301.

[0081] In this embodiment, refer to Figure 4 、 Figure 9 , the adjusting member includes a cylinder 200, a push plate 201 and a limiting portion;

[0082] The cylinder 200 is mounted on the outer frame, and the output end passes through the outer frame to just above the outer cylinder;

[0083] The push plate 201 is fixed on the output end of the cylinder 200. The push plate 201 is arranged parallel to the outer cylinder. A convex plate 201a is fixed at the bottom of both ends of the push plate 201.

[0084] The limiting part is composed of a connecting part and a resisting part;

[0085] The connecting member movably penetrates the convex plate 201 a in the horizontal direction, and the abutting member is flexibly arranged below the connecting member and abuts against the outer surface of the threaded sleeve 303 .

[0086] In this embodiment, refer to Figure 4 、 Figure 9 The connecting member includes an inverted L-shaped connecting rod 202, the horizontal part of which movably passes through the protruding plate 201a, and a transverse spring 205 is also sleeved on the horizontal part of the connecting rod 202, one end of the transverse spring 205 is against one side of the protruding plate 201a, and the other end is limited at the corner of the connecting rod 202; a limiting head 202a is also formed at one end of the connecting rod 202 passing through the protruding plate 201a, wherein the limiting head 202a can be limited by a nut, or fixed by spot welding or other means, as long as the connecting rod 202 does not detach from the protruding plate 201a, no further details will be given here. The limiting head 202a is limited and stuck on the other side of the protruding plate 201a, and the resistance member is arranged below the vertical part of the connecting rod 202.

[0087] In this embodiment, refer to Figure 9 , the resisting member includes a rubber block 203, a sleeve 204, and a vertical spring 206;

[0088] The rubber block 203 is arc-shaped and abuts against the surface of the threaded sleeve 303 when the push plate 201 descends, thereby reducing the rotation of the threaded sleeve 303 and forcing the threaded sleeve 303 to rotate in the threaded portion 301a area on the inner rotating cylinder 301. The rubber block 203 is made of nitrile rubber and is a consumable part. It needs to be replaced after a certain period of use.

[0089] The sleeve 204 is a hollow cylinder, the top of which is movably sleeved under the vertical portion of the connecting rod 202, while the bottom of the vertical spring 206 is fixed to the rubber block 203; the vertical spring 206 is arranged on the inner side of the sleeve 204, and the two ends of the vertical spring 206 are fixed to the rubber block 203 and the bottom end of the connecting rod 202, wherein the top of the vertical spring 206 is fixed to the bottom end of the vertical portion of the connecting rod 202 by welding, and the bottom end of the sleeve 204 is installed by embedding in the rubber block 203. In actual use, the vertical spring 206 can be set as an independent structure without being fixedly connected to any structure. It is only necessary to open a strip groove on the surface of the sleeve 204 from top to bottom, and then pass a structure such as a boss through the strip groove and fix it on the vertical portion of the connecting rod 202 to achieve the sleeve 204 moving on the connecting rod 202 without falling, and to compress the vertical spring 206;

[0090] The working principle of the adjusting member is explained here: the cylinder 200 drives the push plate 201 and the convex plate 201a to descend. At this time, the convex plate 201a drives the connecting rod 202 and the rubber block 203 to descend. In the process of the rubber block 203 pressing against the threaded sleeve 303 and slowing down the rotation of the threaded sleeve 303, the vertical spring 206 is in a compressed state. In the compressed state, the vertical spring 206 can continue to be compressed. When the compression amount is greater, the squeezing force of the rubber block 203 on the threaded sleeve 303 is greater. This method of adjusting the downward pressure by the compression of the vertical spring 206 is more relaxed than directly outputting the pressure through the push plate 201, and avoids the pressure directly input by the cylinder 200 from stopping the threaded sleeve 303 through the rubber block 203, thereby causing the rotation angle between the inner rotating cylinder 301 and the threaded sleeve 303 to be too large.

[0091] When the threaded sleeve 303 is rotated in the area of ​​the threaded portion 301a, the threaded sleeve 303 will move in the axial direction of the inner rotating cylinder 301. At this time, the threaded sleeve 303 can drive the connecting rod 202 to move in the same direction, reducing the risk of the threaded sleeve 303 being stuck after being pressed by the rubber block 203. The movement direction of the threaded sleeve 303 is in the direction of the compression state of the transverse spring 205. The setting of the transverse spring 205 can ensure that the connecting rod 202 automatically returns to its original position after the rubber block 203 is separated from the threaded sleeve 303.

[0092] In this embodiment, refer to Figure 4 The inner width of the arc groove 303a is equal to the diameter of the short rod 302a, and one end of the short rod 302a extends to the outside of the threaded sleeve 303, thereby ensuring that the threaded sleeve 303 can still contact the short rod 302a when it moves axially with the outer rotating cylinder 302.

[0093] In this embodiment, refer to Figure 1 and Figure 2 The outer frame includes a frame 100, and an openable side panel 102 is provided on the side of the frame 100. An exhaust fan 400 is also installed on the top of the frame 100. The exhaust fan 400 is connected to the interior of the frame 100 and is used to absorb and discharge dust generated during the seed splitting process. A discharge port 105 is also installed at the bottom of the frame 100. The discharge port 105 is located directly below the rotary drum mechanism and is used to discharge the separated seeds. A discharge hopper 104 is also provided at one end of the frame 100. The discharge hopper 104 is located in the discharge port direction of the inner rotary drum 301, and the discharge hopper 104 is used to guide the discharged packaging bags.

[0094] In this embodiment, refer to Figure 1 and Figure 2 The crushing parts include a crushing cutter disc 101 arranged inside the frame 100, and a cutter disc motor 101a fixed on the top side of the crushing cutter disc 101. The crushing cutter disc 101 is installed on the output end of the cutter disc motor 101a. During use, the planting packaging bag containing seeds is put into the crushing cutter disc 101, then cut by the crushing cutter disc 101, and then introduced into the rotary drum mechanism for subsequent processing.

[0095] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Automatic seed unpacking machine, including an outer frame, characterized by: A crushing part, a rotary drum mechanism, and a blanking part are arranged in the outer frame; The crushing member is arranged above one end of the outer frame; The rotary drum mechanism is horizontally placed in the outer frame, with one end located below the crushing member and receiving the seed packaging bag cut by the crushing member; The rotating cylinder mechanism includes two concentrically arranged inner cylinders, outer cylinders, and an adjusting member; The outer cylinder is sleeved on the inner cylinder, and the middle area of ​​the outer cylinder rotates on the same plane as the inner cylinder, while the two ends of the outer cylinder are rotated on the inner cylinder, and the two ends and the middle part of the outer cylinder are flexibly connected; The adjusting member is mounted on the outer frame, and the output portion of the adjusting member abuts against the two ends of the outer cylinder. After being limited by the adjusting member, the two ends of the outer cylinder form an angular difference with the inner cylinder. The outer cylinder comprises an outer rotating cylinder (302), a threaded sleeve (303), and a retaining ring (304); The outer rotating cylinder (302) constitutes the middle area of ​​the outer cylinder, and short rods (302a) are fixed at equal angles on both end surfaces of the outer rotating cylinder (302), and the short rods (302a) are connected to the threaded sleeve (303). The surface of the threaded sleeve (303) is provided with an arc groove (303a) for the short rod (302a) to movably penetrate, and a reset member is also provided in the arc groove (303a), with two ends of the reset member elastically abutting against the short rod (302a) and the inner wall of one end of the arc groove (303a) respectively; The retaining ring (304) is located in the inner area of ​​the short rod (302a), and two retaining rings (304) are provided and fixed on the inner cylinder; the retaining rings (304) are positionally fitted with the end faces of both ends of the outer rotating cylinder (302); The regulating member comprises a cylinder (200), a push plate (201) and a limiting portion; The cylinder (200) is mounted on the outer frame, and the output end passes through the outer frame to the top of the outer tube; The push plate (201) is fixed on the output end of the cylinder (200), and the push plate (201) is arranged in parallel with the outer cylinder. Convex plates (201a) are fixed on the bottoms of both ends of the push plate (201); The limiting part is composed of a connecting part and a resisting part; The connecting member movably penetrates the convex plate (201a) in the horizontal direction, and the abutting member is flexibly arranged below the connecting member and abuts against the outer surface of the threaded sleeve (303); The connecting member comprises an inverted L-shaped connecting rod (202), the horizontal portion of the connecting rod (202) movably passing through the convex plate (201a), a transverse spring (205) sleeved on the horizontal portion of the connecting rod (202), one end of the transverse spring (205) abutting against one side of the convex plate (201a), and the other end being limited at a corner of the connecting rod (202); a limiting head (202a) is formed at one end of the connecting rod (202) passing through the convex plate (201a), the limiting head (202a) being limited and locked at the other side of the convex plate (201a), and the abutting member is arranged below the vertical portion of the connecting rod (202); The resisting member comprises a rubber block (203), a sleeve (204), and a vertical spring (206); The rubber block (203) is arc-shaped and abuts against the surface of the threaded sleeve (303) when the push plate (201) descends, thereby reducing the rotation of the threaded sleeve (303) and forcing the threaded sleeve (303) to rotate in the threaded portion (301a) area on the inner rotating cylinder (301); The sleeve (204) is a hollow cylinder, the top of which is movably sleeved below the vertical portion of the connecting rod (202), and the bottom of the vertical spring (206) is fixed on the rubber block (203); the vertical spring (206) is arranged on the inner side of the sleeve (204), and the two ends of the vertical spring (206) are fixed to the rubber block (203) and the bottom end of the connecting rod (202).

2. The automatic seed unpacking machine according to claim 1, characterized in that: The reset member comprises a limit spring (305) and an arc-shaped plate (306); The inner side of the arc-shaped plate (306) is concave and completely fits the surface of the short rod (302a); A plurality of the limit springs (305) are provided. The limit springs (305) are arc-shaped as a whole and are completely adapted to fit within the arc groove (303a). One end of the limit spring (305) is connected to the outer side of the arc plate (306), and the other end is fixed to the inner wall of the arc groove (303a).

3. The automatic seed unpacking machine according to claim 2, characterized in that: The inner cylinder is an inner rotating cylinder (301), and the surfaces of the inner rotating cylinder (301) and the outer rotating cylinder (302) are both provided with holes, wherein the shape of the holes is circular, elliptical or prismatic. Threaded portions (301a) are provided at both ends of the inner rotating cylinder (301), and the two threaded sleeves (303) are screwed onto the threaded portions (301a) at corresponding positions. The inner wall of the inner rotating cylinder (301) is provided with a plurality of spiral sheets (301c) distributed in the form of a thread line, and a convex ring (301b) is fixedly provided at one end of the inner rotating cylinder (301), and a belt is sleeved on the outside of the convex ring (301b); a servo motor (103) is provided on the outer frame, and a pulley for driving the belt is installed on the output end of the servo motor (103).

4. The automatic seed unpacking machine according to claim 2, characterized in that: The inner width of the arc groove (303a) is equal to the diameter of the short rod (302a), and one end of the short rod (302a) extends to the outside of the threaded sleeve (303).

5. The automatic seed unpacking machine according to claim 1, characterized in that: The outer frame comprises a frame (100), and an openable side panel (102) is provided on the side of the frame (100). An exhaust fan (400) is also installed on the top of the frame (100), and the exhaust fan (400) is in communication with the interior of the frame (100). A discharge port (105) is also installed at the bottom of the frame (100), and the discharge port (105) is located directly below the rotary drum mechanism. A discharge hopper (104) is also provided at one end of the frame (100), and the discharge hopper (104) is located in the direction of the discharge port of the inner rotary drum (301).

6. The automatic seed unpacking machine according to claim 5, characterized in that: The crushing component comprises a crushing cutter disc (101) arranged inside a frame (100), and a cutter disc motor (101a) fixed to the top side of the crushing cutter disc (101). The crushing cutter disc (101) is mounted on the output end of the cutter disc motor (101a).

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