Seed cotton round mold opening machine and method

Abstract

The invention discloses a seed cotton round mold film opening machine and method, and relates to the technical field of cotton processing, the seed cotton round mold film opening machine comprises a conveying unit and a film opening and loosening unit, the conveying unit comprises a plurality of rubber covered rollers arranged in sequence, guide baffles are symmetrically installed at the two ends of each rubber covered roller, and the guide baffles are obliquely arranged and used for making contact with a round mold; the film opening and loosening unit is arranged on one side of the conveying unit and comprises a film opening roller table, a noil roller table and a cotton returning roller table which are sequentially arranged, and a film grabbing gripper is arranged above the noil roller table; the two noil roller tables are arranged side by side and can rotate towards the inner side after the die grabbing tongs grab the round die, so that a channel for seed cotton to pass through is formed between the two noil roller tables. The requirement for circular die conveying power can be lowered, and a packaging film is not damaged; the film opening and opening unit integrates the film opening function and the opening function, the functions are concentrated, and automatic film opening and cotton feeding can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cotton processing, and particularly relates to a seed cotton round module opening film machine and method. BACKGROUND

[0002] At present, most cotton picking machines are baling type cotton picking machines, that is, the picked seed cotton is compressed and wrapped into a cylindrical module (referred to as a round module) by a baling film. The large volume and large weight of the round module facilitates transportation and storage, but brings some problems to subsequent ginning production. In the prior art, the conveying part of the opening film machine adopts a design scheme in which a bottom conveying chain provides power and a side guide plate assists the forward movement of the round module. The round module is in direct contact with the bottom conveying chain, and the conveying chain drives the round module to move forward. This way is easy to hook and break the baling film of the round module, introduces additional three wires, and affects the lint quality. Meanwhile, when the round module is placed in the conveying part, the two sides of the round module are directly pressed against the side guide plate. Although the side guide plate can play a certain guiding role, it also hinders the normal forward movement of the round module, has a greater demand for the power of the bottom conveying chain, and increases the probability of baling film breakage.

[0003] Meanwhile, the conveying, opening film, lint dropping and lint returning functions are dispersedly arranged, and the land occupation area is large. Moreover, the seed cotton is easy to scatter during the lint dropping process, increasing the difficulty of subsequent cleaning work. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a seed cotton round module opening film machine and method, which can reduce the power requirement of the round module conveying and not damage the baling film. The opening film and loosening unit integrates the functions of opening film and loosening, is concentrated in function, and can realize automatic opening film and lint feeding.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: In a first aspect, an embodiment of the present application provides a seed cotton round module opening film machine, comprising: A conveying unit comprising a plurality of sequentially arranged rubber-coated rollers, guide baffles being symmetrically installed at both ends of the rubber-coated rollers, and the guide baffles being obliquely arranged to contact the round module; An opening film and loosening unit arranged on one side of the conveying unit, comprising an opening film roller table, a lint dropping roller table and a lint returning roller table arranged in sequence, and a module grabbing hand being arranged above the lint dropping roller table; the two groups of lint dropping roller tables are arranged side by side, and the lint dropping roller tables can rotate inward after grabbing the round module by the module grabbing hand, so as to form a channel for the seed cotton to pass between the two groups of lint dropping roller tables.

[0006] As a further implementation manner, the conveying unit is provided with at least two groups along the conveying direction.

[0007] As a further implementation manner, the rubber-coated roller comprises a roller shaft and a ribbed rubber layer wrapped outside the roller shaft.

[0008] As a further implementation manner, the guide baffle comprises a baffle body, and a plurality of unpowered rollers are uniformly arranged on the baffle body along the conveying direction. The baffle body is further provided with a sensor for identifying the position of the round module.

[0009] As a further implementation manner, the guide baffle is connected with the cotton baffle.

[0010] As a further implementation manner, the film opening roller table, the cotton falling roller table and the cotton returning roller table are all arranged on the first support frame, the upper side of the first support frame is connected with the second support frame, and the film grabbing hand is arranged on the lower side of the second support frame.

[0011] As a further implementation manner, the outer side of the cotton falling roller table is rotatably connected with the first support frame, and the cotton falling roller table is connected with the first support frame through a plurality of cotton falling oil cylinders.

[0012] As a further implementation manner, an opening roller is arranged below the cotton falling roller table.

[0013] In a second aspect, the embodiment of the present application further provides a working method of the seed cotton round module film opening machine, which comprises the following steps: The round module is conveyed to the film opening roller table by the conveying unit, and the packaging film is cut by the film opening knife; The round module continues to be conveyed to the cotton falling roller table, the round module is grabbed by the film grabbing hand and the packaging film is hooked by the round hook, the outer side of the cotton falling roller table is lifted, the inner side is rotated downward, so that a channel is formed between the two groups of cotton falling roller tables, and the seed cotton falls from the opening of the packaging film to the pit through the channel; After the seed cotton falls into the pit, the cotton falling roller table returns to the horizontal state, and the packaging film falls on the cotton falling roller table under the action of the film grabbing hand.

[0014] As a further implementation manner, during the rotation of the cotton falling roller table, the rotation directions of the film opening roller table and the cotton returning roller table are opposite, so that the seed cotton is conveyed to the direction of the cotton falling roller table.

[0015] The present application has the following advantages: (1) The present application comprises a conveying unit and a film opening and opening unit, the film opening and opening unit comprises a film opening roller table, a cotton falling roller table and a cotton returning roller table arranged in sequence, the round module is conveyed to the film opening roller table, the cotton falling roller table and the conveying unit in sequence, and the structure is compact; the guide baffle and the rubber-coated roller in the conveying unit cooperate to reduce the forward resistance of the round module and reduce the power demand, thereby protecting the power transmission system; the two groups of cotton falling roller tables can be rotated to form a channel, so that the seed cotton falls into the pit smoothly, and the film opening roller table and the cotton returning roller table can be rotated in opposite directions, and the cooperation of the film opening roller table, the cotton falling roller table and the cotton returning roller table can ensure that all the seed cotton in a single round module is fed into the pit, so as to avoid the scattering and waste of the seed cotton.

[0016] (2) The conveying unit of the application is provided with at least two groups in the conveying direction, multiple circle molds can be placed, and the circle molds can be automatically filled forward, so that the film opening efficiency is improved, and the working time is saved; the baffle body of the guide baffle is uniformly provided with multiple unpowered rollers in the conveying direction, the circle mold directly contacts with the unpowered roller, rolling friction is formed between the two, compared with sliding friction, the advancing resistance is reduced, the power demand of the motor and other power transmission systems is reduced, thereby playing a role in protecting the power transmission system; the ribbed rubber layer in the rubber-coated roller increases the friction between the circle mold, which can drive the large-weight circle mold to advance, avoid the situation that the power is insufficient during conveying and the circle mold cannot be driven, and ensure the stability and reliability of the conveying.

[0017] (3) The film opening and loosening unit and each conveying unit of the application are provided with sensors, which can accurately identify the position of the circle mold, thereby controlling the action of each unit, making each unit act in coordination, and realizing efficient and automatic film opening and feeding. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the application form a part of the application and serve to further understand the application. The illustrative embodiments of the application and their description serve to explain the application without forming an improper limitation of the application.

[0019] Figure 1 is a schematic diagram of the overall structure of the seed cotton circle mold film opening machine according to one or more embodiments of the application; Figure 2 is a schematic diagram of the structure of the conveying unit according to one or more embodiments of the application; Figure 3 is a schematic diagram of the structure of the rubber-coated roller according to one or more embodiments of the application; Figure 4 is a front view of the guide baffle according to one or more embodiments of the application; Figure 5 is a rear view of the guide baffle according to one or more embodiments of the application; Figure 6 is a schematic diagram of the structure of the film opening and loosening unit according to one or more embodiments of the application; Figure 7 is a schematic diagram of the structure of the cotton falling roller table according to one or more embodiments of the application; Figure 8 is a schematic diagram of the arrangement of multiple conveying units according to one or more embodiments of the application.

[0020] Wherein, 1, conveying unit, 2, film opening and loosening unit, 3, pit, 4, round mold, 5, chassis frame, 6, rubber-coated roller, 7, motor, 8, motor shield, 9, shield, 10, guide baffle, 11, cotton blocking plate, 12, roller shaft, 13, rubber layer with edges, 14, second support, 15, first support, 16, baffle body, 17, first support, 18, cover plate, 19, unpowered roller, 20, reinforcing rib, 21, first support frame, 22, film opening roller table, 23, linter oil cylinder, 24, linter roller table, 25, film hooking oil cylinder, 26, linter roller table, 27, second support, 28, film grabbing oil cylinder, 29, film grabbing gripper, 30, second support frame, 31, film opening knife, 32, loosening roller, 33, mounting bracket, 34, oil cylinder connecting piece, 35, rotating shaft, 36, linter roller. DETAILED DESCRIPTION

[0021] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0022] For the convenience of description, if the words "front", "back", "left" and "right" appear in the present application, they only mean the same as the front, back, left and right directions of the drawings themselves, and do not limit the structure, but only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application. The term "first", "second" in the description of the present application is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] Example 1 The present embodiment provides a kind of seed cotton round mold film opening machine, as shown in Figure 1 It mainly includes conveying unit 1 and film opening and loosening unit 2, and the round mold 4 is transmitted to the film opening and loosening unit 2 by the conveying unit 1, and the film opening and loosening unit 2 is located on the upside of the pit 3, so that the seed cotton after the round mold 4 is opened is directly dropped into the pit 3, and the next seed cotton processing procedure is carried out.

[0024] The conveying unit 1 is used to store and convey the round mold 4, and at least two conveying units 1 are arranged at the input end of the film opening and loosening unit 2, so that multiple round molds 4 can be placed and the round molds 4 can be automatically filled forward, the film opening efficiency is improved, and the working time is saved. Figure 2As shown, the conveying unit 1 includes a chassis frame 5, rubber-coated rollers 6, guide baffles 10, cotton blocking plates 11, etc. The chassis frame 5 has a plurality of rubber-coated rollers 6 mounted on the upper side thereof. The rubber-coated rollers 6 are driven by a chain transmission mechanism of a sprocket driven by a motor 7. The sprocket and chain are mounted in a shroud 9. Specifically, the motor 7 is connected to a driving sprocket through a speed reducer. The driving sprocket is connected to a sprocket at the end of the rubber-coated roller 6 at one end through a chain. The motor 7 drives the rubber-coated rollers 6 to rotate through the chain transmission, thereby achieving the conveying of the round mold 4.

[0025] As shown in Figure 3 , the rubber-coated roller 6 includes a roller shaft 12 and a ribbed rubber layer 13 wrapped on the outer side of the roller shaft 12. The ribbed rubber layer 13 is formed by processing grooves on the surface of the rubber layer. The grooves are arranged along the axis of the roller shaft 12 and are uniformly arranged in the circumferential direction of the roller shaft 12. The rubber layer has a high friction coefficient, which can provide sufficient power for the conveying of the round mold 4. The grooves can further improve the friction. The cross-sectional shape of the grooves can be triangular, arc-shaped, trapezoidal, rectangular, etc. The specific arrangement can be determined according to actual requirements.

[0026] The embodiment adopts the chain-driven rubber-coated roller 6 to convey the round mold 4, which does not damage the packaging film of the round mold 4 and introduces additional three wires. At the same time, the friction is larger, which can drive the heavy round mold 4 to move forward and avoid the phenomenon that the conveying chain cannot drive the round mold 4.

[0027] During the conveying process, the round mold 4 needs to be laid on the conveying unit 1. In order to avoid the round mold 4 rolling left and right on the conveying unit 1, the embodiment installs guide baffles 10 and cotton blocking plates 11 at both ends of the rubber-coated roller 6. Figure 2 As shown in , the rubber-coated roller 6 is symmetrically installed with cotton blocking plates 11 at both ends. The end of the cotton blocking plate 11 close to the rubber-coated roller 6 has a vertical surface. The upper side of the vertical surface has an inclined surface connected thereto. The inclined surface is inclined outward relative to the rubber-coated roller 6. The two inclined surfaces form an outward expanding structure. The guide baffles 10 are inclinedly arranged and connected to the inclined surfaces of the cotton blocking plates 11. During the conveying process of the round mold 4, the round mold 4 is in contact with the guide baffles 10, which prevents the round mold 4 from rolling left and right and provides a guide for the conveying direction.

[0028] Since the round mold 4 is wrapped with packaging film on the side surface and the ends are only edge-sealed, there is a large area of unsealed area. Therefore, when the round mold 4 moves on the rubber-coated roller 6, there may be seed cotton falling on the rubber-coated roller 6. The fallen seed cotton may enter the chain transmission of the rubber-coated roller 6, affecting the stability of the chain transmission. The lower side of the guide baffles 10 of the embodiment is provided with the cotton blocking plates 11, which can block the seed cotton from entering the chain transmission, thereby ensuring the safety of the equipment operation.

[0029] As shown in Figure 4 and Figure 5As shown, the guide baffle 10 includes a baffle body 16, a reinforcing rib 20, etc. The baffle body 16 is a main structure, a plurality of openings are uniformly arranged along the length direction of the baffle body 16, and a non-powered roller 19 is arranged in each opening. The axis direction of the non-powered roller 19 is perpendicular to the length direction of the baffle body 16 and forms a certain angle with the horizontal plane. In the conveying process, the round mold 4 directly contacts the non-powered roller 19, and the rolling friction is formed between the two, which reduces the forward resistance and the power demand of the motor 7, thereby playing a role in protecting the power transmission system.

[0030] In order to improve the support strength of the guide baffle 10, a plurality of reinforcing ribs 20 are mounted on the back side of the baffle body. The reinforcing ribs 20 are connected between the first support 17 and the second support 14, wherein the first support 17 is fixed to the top end of the baffle body, and the second support 14 is fixed to the bottom end of the baffle body. The non-powered roller 19 is rotatably connected with the cover plate 18, and the cover plate 18 is connected with the first support 17 by bolts. The non-powered roller 19 passes through the opening on the baffle body and is higher than the inner surface of the baffle body, so that the non-powered roller 19 can contact the round mold 4; the height of the non-powered roller 19 above the baffle body can be adjusted according to actual conditions.

[0031] As shown in Figure 5 The back side of the baffle body 16 is also provided with a first support 15, and a corresponding sensor is mounted through the first support 15 for identifying the position of the round mold 4. The baffle body 16 is provided with a through hole corresponding to the mounting position of the sensor, so that the sensor can correspond to the front surface of the baffle body 16. In this embodiment, the sensor mounted on the guide baffle 10 is an optical switch.

[0032] The film opening and loosening unit 2 of this embodiment integrates the functions of round mold 4 film opening and seed cotton loosening, as shown in Figure 6 The film opening and loosening unit 2 includes a film opening roller table 22, a seed cotton falling roller table 24, a seed cotton returning roller table 26, a film grabbing hand 29, a film opening knife 31, etc. The film opening roller table 22, the seed cotton falling roller table 24 and the seed cotton returning roller table 26 are mounted on the first support frame 21 and are sequentially arranged along the conveying direction; the seed cotton falling roller table 24 is arranged in two groups side by side, and the joint of the two groups of seed cotton falling roller tables 24 corresponds to the mounting position of the film opening knife 31.

[0033] The installation height of the film opening roller table 22 is not higher than the installation height of the rubberized roller 6, which facilitates the stable conveying of the round mold 4 from the conveying unit 1 to the film opening and loosening unit 2. The film opening knife 31 is arranged at the middle position of the film opening roller table 22, and the film opening knife 31 is fixed with the first support frame 21 and protrudes from the film opening roller of the film opening roller table 22, which is used to cut the packaging film of the round mold 4 during the conveying process of the round mold 4.

[0034] As shown in Figure 6 Along the conveying direction, the arrangement length of the seed cotton falling roller table 24 is greater than the length of the film opening roller table 22; as shown in Figure 7As shown, the lint roller table 24 includes a mounting frame 33, a plurality of lint rollers 36 are evenly distributed along the length of the mounting frame 33; both ends of the mounting frame 33 are fixed with cylinder connecting pieces 34, the fixed end of the lint cylinder 23 is connected with the first support frame 21, and the movable end of the lint cylinder 23 is connected with the cylinder connecting piece 34, so that the lint cylinder 23 is connected between the mounting frame 33 and the first support frame 21 in an inclined state.

[0035] The mounting frame 33 is rotationally connected with the first support frame 21 through a rotating shaft 35, and the rotating shaft 35 is located outside the lint roller table 24, as shown in Figure 7 As shown, the axis direction of the rotating shaft 35 is perpendicular to the axis direction of the lint roller 36. The two groups of lint roller tables 24 move synchronously, when the piston rods of the two side lint cylinders 23 are extended, the outside of the lint roller table 24 is lifted, the lint roller table 24 rotates, the inside of the lint roller table 24 is lowered, and a channel is formed between the two groups of lint roller tables 24, which facilitates the falling of the seed cotton into the pit 3.

[0036] In this embodiment, each lint roller table 24 has two cylinder connecting positions; of course, in other embodiments, the number of cylinders can be increased to further improve the rotation stability of the lint roller table 24.

[0037] The lint roller table 24 is installed below the opening roller 32, the opening roller 32 is connected with the first support frame 21 through a bearing, and is driven by a motor through a chain transmission mechanism, a plurality of opening rollers 32 are located below the lint roller table 24, and can beat and scatter the falling seed cotton.

[0038] As shown in Figure 6 The second support frame 30 is installed on the upper side of the first support frame 21, the grabber 29 is installed through the second support frame 30, and the grabber 29 is located above the lint roller table 24. The second support frame 30 is also provided with a sensor, such as a photoelectric switch, the sensor is fixed on the second support 27, the second support 27 is connected with the second support frame 30, and the sensor is used to sense the position of the circular mold 4 on the lint roller table 24, so as to stop the circular mold 4 on the lint roller table 24.

[0039] The grabber 29 is rotationally connected with the second support frame 30 through a pin shaft, the grabber 29 is connected with the grab cylinder 28, the grab cylinder 28 is installed on the top of the second support frame 30, and the grab cylinder 28 is connected with the grab cylinder 28. The extension and retraction of the piston rod of the grab cylinder 28 realizes the opening and closing of the grabber 29. The back side of the grabber 29 is provided with a film hooking cylinder 25, the film hooking cylinder 25 is connected with a circular hook, the extension and retraction of the piston rod of the film hooking cylinder 25 realizes the rotation of the rotating shaft 35, and realizes the extension and retraction of the circular hook, that is, the film hooking and film loosening actions.

[0040] It should be noted that the mounting structure of the grabber 29 is prior art.

[0041] The opening roller 22, the cotton dropping roller 24, and the cotton return roller 26 are all driven by a chain transmission mechanism driven by a motor. When the seed cotton in the circular mold 4 after opening is on the cotton dropping roller 24, the seed cotton will collapse in all directions and fall onto the opening roller 22 and the cotton return roller 26. The opening roller 22 rotates clockwise to transport the seed cotton scattered here to the cotton dropping roller 24; the cotton return roller 26 rotates counterclockwise to transport the seed cotton scattered here to the cotton dropping roller 24, ensuring that all the seed cotton in a single circular mold 4 is fed into the pit 3.

[0042] Example 2: This embodiment provides a working method for a seed cotton circular mold film opening machine. Based on the seed cotton circular mold film opening machine described in Embodiment 1, the direction in which the circular mold 4 flows is considered forward, and the opposite direction is considered backward. The first conveying unit 1 is located at position 1, which is close to the film opening and loosening unit 2, and the subsequent equipment numbers increase sequentially.

[0043] Taking three conveyor units 1 as an example, such as Figure 8 As shown, the sensor at position 3 is installed at the rear end of the device at position 3, and the sensors of the remaining devices are installed at the front ends of the devices. The circular mold 4 is placed at the rear end of position 3 by the loader, and the sensor at position 3 detects the circular mold 4. At this time, the sensor at the front end of position 1 does not detect the circular mold 4, and then checks whether there is a circular mold 4 at position 2; the circular mold 4 is also not detected at position 2, and neither of the motors 7 of the two devices starts. Subsequently, the sensor at the front end of position 2 does not detect the circular mold 4, and then checks whether there is a circular mold 4 at position 3; the sensor at the rear end of position 3 detects the circular mold 4, so the motor 7 of position 2 starts first, and the motor 7 of position 3 starts with a delay, conveying the circular mold 4 forward from position 3. When the sensor at the front end of position 2 senses the circular mold 4, both of the motors 7 of the two devices stop running. Then, the detection by the first-end sensor at position 1 is repeated. At this time, the first-end sensor at position 2 detects the presence of the circular mold 4. Therefore, motor 7 at position 1 starts first, and motor 7 at position 2 starts later, conveying the circular mold 4 forward from position 2. When the first-end sensor at position 1 detects the circular mold 4, both motors 7 stop running. After that, the circular mold 4 is not detected at positions 2 and 3, and the loader must load the material. The above operating rules are repeated cyclically, always ensuring that the circular mold 4 is present at position 1.

[0044] When the No. 1 position of the conveying unit 1 has the round mold 4, the film opening and loosening process of the round mold 4 is performed. The motors of the No. 1 position motor 7, the film opening roller table 22, the linter roller table 24 and the back roller table 26 are started at the same time, and the round mold 4 is conveyed forward from the No. 1 position. When the round mold 4 contacts the film opening knife 31, the packaging film is cut open, and the round mold 4 continues to move forward, and the sensor of the linter roller table 24 stops when sensing. At this time, the round mold 4 is located on the linter roller table 24, the piston rod of the mold grabbing cylinder 28 is extended, the lower part of the mold grabbing gripper 29 is inwardly folded to hold the round mold 4. After the mold grabbing gripper 29 is held, the piston rod of the film hooking cylinder 25 is extended, the round hook is rotated upward to make the round hook deeply hook the packaging film on the surface of the round mold 4. Then, the piston rod of the mold grabbing cylinder 28 is retracted, the mold grabbing gripper 29 is in an open state, the piston rod of the linter cylinder 23 is extended, the inside of the linter roller table 24 is downwardly rotated to form a channel, and the seed cotton falls from the opening of the packaging film into the pit 3. The bottom of the packaging film is cut open, and the seed cotton at both ends of the round mold 4 collapses toward the film opening roller table 22 and the back roller table 26. At this time, the film opening roller table 22 rotates clockwise, and the back roller table 26 rotates counterclockwise to convey the seed cotton toward the linter roller table 24, and all the seed cotton falls into the pit 3.

[0045] When the seed cotton falls, it passes through the loosening roller 32 to become more loose, which is convenient for feeding flowers. After all the seed cotton falls into the pit 3, the piston rod of the linter cylinder 23 is retracted, the linter roller table 24 returns to the horizontal state, and the motors of the film opening roller table 22, the linter roller table 24 and the back roller table 26 stop running. Finally, the piston rod of the film hooking cylinder 25 is retracted, and the packaging film falls on the linter roller table 24 to take out the packaging film.

[0046] At the same time as the above operation, after the first end sensor signal of the No. 1 position of the conveying unit 1 is lost, the round mold 4 is automatically replenished to the No. 1 position. A complete cycle is completed, and the multiple position storage and conveying, film opening, loosening and feeding of the round mold 4 are realized.

[0047] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A seed cotton circular mold film-opening machine, characterized in that, include: The conveying unit includes multiple rubber-coated rollers arranged in sequence, with guide baffles symmetrically installed at both ends of the rubber-coated rollers. The guide baffles are inclined and designed to contact the circular mold. The film opening and loosening unit is located on one side of the conveying unit and includes a film opening roller table, a cotton dropping roller table, and a cotton return roller table arranged in sequence. A gripper is provided above the cotton dropping roller table. Two sets of cotton dropping roller tables are arranged side by side. After the gripper grabs the round mold, the cotton dropping roller tables can rotate inward to form a channel for seed cotton to pass through between the two sets of cotton dropping roller tables.

2. The seed cotton circular mold film-opening machine according to claim 1, characterized in that, The conveying unit is provided in at least two sets along the conveying direction.

3. A seed cotton circular mold film-opening machine according to claim 1 or 2, characterized in that, The rubber-coated roller includes a roller shaft and a ribbed rubber layer covering the outside of the roller shaft.

4. The seed cotton circular mold film-opening machine according to claim 1, characterized in that, The guide baffle includes a baffle body, and multiple non-powered rollers are evenly installed on the baffle body along the conveying direction. The baffle body is also equipped with a sensor for identifying the position of the circular mold.

5. A seed cotton circular die film opening machine according to claim 1 or 4, characterized in that, The guide baffle is connected to the cotton-blocking plate.

6. A seed cotton circular die film opening machine according to claim 1, characterized in that, The opening roller, the dropping roller, and the returning roller are all installed on the first support frame. The upper side of the first support frame is connected to the second support frame, and the gripper is installed on the lower side of the second support frame.

7. A seed cotton circular die film opening machine according to claim 6, characterized in that, The outer side of the cotton dropping roller is rotatably connected to the first support frame, and the cotton dropping roller is connected to the first support frame through several cotton dropping cylinders.

8. A seed cotton circular mold film-opening machine according to claim 1 or 6, characterized in that, An opening roller is installed below the cotton dropping roller table.

9. The working method of a seed cotton circular die film-opening machine according to any one of claims 1-8, characterized in that, include: The circular mold is conveyed to the film-opening roller table via the conveying unit, where the film-opening knife cuts the packaging film. The circular mold continues to be conveyed to the cotton drop roller table, where the mold gripper grabs the circular mold and hooks the packing film with a circular hook; the outer side of the cotton drop roller table is raised and the inner side is rotated downward, so that a channel is formed between the two sets of cotton drop roller tables; the seed cotton falls from the opening of the packing film into the pit through the channel. After all the seed cotton has fallen into the pit, the cotton dropping roller table returns to a horizontal state, and the baling film falls onto the cotton dropping roller table under the action of the gripper.

10. The working method of a seed cotton circular mold film-opening machine according to claim 9, characterized in that, During the rotation of the cotton drop roller, the opening roller and the returning roller rotate in opposite directions, causing the seed cotton to be conveyed towards the cotton drop roller.

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