An automatic cotton grabbing device

Abstract

This utility model relates to the technical field of cotton processing equipment, specifically an automatic cotton-grabbing device, including a cotton storage bin, a base, a rotating seat, a linkage arm mechanism, a bale-grabbing frame and its grabbing mechanism, a linkage rod transmission system, a protective cover, and a fixing mechanism. The linkage arm mechanism, driven by a motor, enables multi-directional adjustment of the bale-grabbing frame; a cylinder controls the opening and closing of the clamping plate to complete the grabbing of cotton bales; the linkage rod ensures synchronous movement; and the protective cover prevents cotton lint from scattering. This utility model improves grabbing efficiency, reduces environmental pollution, has a compact and stable structure, is simple to operate, and is suitable for various cotton processing scenarios.

Description

Technical Field

[0001] This utility model relates to the technical field of cotton processing equipment, specifically to an automatic cotton-grabbing device. Background Technology

[0002] Currently, in the cotton processing industry, the application of automated equipment is of great significance for improving production efficiency and reducing labor costs. At present, cotton grabbing operations mainly rely on manual operation or semi-automated mechanical equipment, which suffer from low efficiency, high labor intensity, and insufficient operational precision. Especially in large-scale cotton processing, traditional equipment struggles to meet the demands for efficient and precise cotton grabbing, leading to increasingly pronounced bottlenecks in the production process. Furthermore, existing cotton grabbing devices generally suffer from insufficient flexibility in their structural design, making it difficult to adapt to cotton bales of different shapes and densities, affecting the stability and consistency of grabbing. Simultaneously, during the grabbing process, cotton fibers easily scatter into the surrounding environment, not only wasting raw materials but also potentially adversely affecting the working environment and the health of operators. While some existing technologies attempt to address this issue by adding protective measures, their complex structures and high maintenance costs fail to fundamentally achieve a balance between efficiency and environmental protection. Therefore, developing an automated cotton grabbing device that achieves efficient grabbing, is highly adaptable, and possesses environmental protection functions has become a pressing technical challenge in the cotton processing equipment field. Utility Model Content

[0003] This invention addresses the problems of low grabbing efficiency, complex operation, and environmental pollution caused by cotton lint dispersion in existing cotton grabbing devices, and provides an automatic cotton grabbing device. Through optimized structural design and linkage mechanism, the device can achieve efficient, stable, and environmentally friendly cotton grabbing.

[0004] This utility model provides an automatic cotton-grabbing device, including a cotton storage bin and support mechanism, a linkage arm mechanism, a bale grabbing frame and its grabbing mechanism, a linkage rod transmission system, and a protective cover and fixing mechanism. Wherein:

[0005] The cotton storage bin is used to store cotton to be processed. A base is fixedly installed inside, and a rotating seat is rotatably mounted on the base. The rotating seat, as the core support point of the entire device, can rotate in multiple directions to adjust the position of the bale-grabbing frame. Furthermore, the rotating seat is designed with a bearing connection to ensure the smoothness and reliability of the rotational movement.

[0006] Furthermore, the linkage arm mechanism includes a movable arm, a follower arm, and a rotating arm. One end of the movable arm is rotatably connected to the rotating base, and the other end is hinged to the rotating arm. Similarly, one end of the follower arm is rotatably connected to the rotating base, and the other end is hinged to the rotating arm, forming a three-arm linkage structure. A motor is also fixedly mounted on the rotating base, and the motor's output end is connected to the transmission part of the movable arm. The motor drives the movable arm to rotate, causing the follower arm and rotating arm to move in tandem, thereby achieving precise adjustment of the bag-grabbing frame's position. Specifically, the transmission part uses gear or belt drive to improve transmission efficiency and reduce mechanical wear.

[0007] Furthermore, the bale-grabbing frame is installed at the end of the rotating arm, on which two symmetrically arranged bale-grabbing shafts are rotatably mounted. Each bale-grabbing shaft is externally fitted with symmetrically arranged clamping plates, which are fixedly connected by horizontal plates to enhance structural stability. A mounting bracket is also fixed between the clamping plates, and the mounting bracket is equipped with several grippers arranged in an array for direct contact and gripping of the cotton bales. A cylinder is rotatably mounted on the bale-grabbing frame, with a piston rod inside the cylinder. The end of the piston rod is movably hinged to one of the clamping plates. The cylinder drives the piston rod to extend and retract, controlling the opening and closing of the clamping plates, thereby completing the gripping and release of the cotton bales. The stroke range of the cylinder and the opening and closing angle of the clamping plates are precisely calculated to accommodate cotton bales of different sizes.

[0008] Furthermore, the linkage transmission system includes a first rotating block, a second rotating block, a first linkage rod, and a second linkage rod. The first and second rotating blocks are respectively fixedly sleeved at one end of the two gripping shafts, and the first and second linkage rods are respectively movably hinged to one side of each of the first and second rotating blocks. The first and second linkage rods slide in cooperation, forming a linkage mechanism to ensure synchronous movement of the two gripping shafts, thereby guaranteeing the synchronous opening and closing of the clamping plates. Specifically, the sliding cooperation adopts a linear guide structure to reduce friction and improve motion accuracy.

[0009] Furthermore, the protective cover and fixing mechanism include a protective cover, a locking hole, a locking block, a pressing block, and a spring. A protective cover is detachably installed on the outside of the bag-grabbing frame to prevent cotton lint from scattering and reduce environmental pollution. The protective cover has a locking hole, and the mounting bracket has an integrally formed locking block that matches the locking hole. Grooves are formed on both sides of the locking block, and an inclined pressing block is slidably connected within the groove. A spring is fixedly connected between the pressing block and the inner wall of the groove. Through the elastic force of the spring, the pressing block is pressed tightly against the locking hole, ensuring a stable installation of the protective cover. Specifically, the inclined surface of the pressing block is designed at a 45-degree angle to automatically compress the spring when the locking block is inserted into the locking hole, and simultaneously achieves a self-locking function through the spring force after full insertion.

[0010] The beneficial effects of this utility model are as follows: Through the linkage arm mechanism and the cylinder-driven clamping plate opening and closing design, rapid and precise grasping of cotton bales is achieved, significantly improving work efficiency. The adoption of a three-arm linkage structure and linkage rod transmission system ensures smooth and reliable movement of the bale-grabbing frame, reducing the occurrence of mechanical failures. The protective cover and its fixing mechanism effectively prevent cotton lint from scattering, reducing environmental pollution, while the detachable design of the protective cover facilitates maintenance and replacement. The overall structure is compact and reasonable, simple to operate, and suitable for various cotton processing scenarios.

[0011] Furthermore, the motor's output power and speed have been optimized to meet the gripping requirements under different working conditions. In particular, the motor's control circuit integrates a frequency converter, which can adjust the output speed according to actual needs, thereby achieving flexible start and stop and avoiding mechanical shock caused by sudden acceleration or deceleration.

[0012] Furthermore, the surface of the gripper is coated with an anti-slip coating to increase friction with the cotton bale and improve the reliability of the grip. Specifically, the anti-slip coating is made of polyurethane, which has good wear resistance and anti-aging properties.

[0013] Furthermore, the protective cover is made of transparent acrylic sheet to facilitate observation of its operation during the grasping process. In particular, the edges of the protective cover are designed with sealing strips to further prevent cotton lint from scattering.

[0014] Furthermore, the thickness and width of the locking block are precisely calculated to ensure that the clearance between it and the locking hole is controlled within 0.1 mm, thereby guaranteeing the firmness and stability of the installation. In particular, the surface of the locking block is polished to reduce friction and extend its service life.

[0015] Furthermore, the spring constant has been experimentally verified to ensure that it maintains stable elastic performance during long-term use. Specifically, the spring is made of stainless steel to improve corrosion resistance and fatigue strength.

[0016] Furthermore, the connection between the base and the cotton storage bin is secured with bolts for easy disassembly and maintenance. Specifically, the bottom of the base is designed with shock-absorbing pads to reduce vibration and noise generated during equipment operation.

[0017] Furthermore, the rotation angle range of the rotating base is set to 0 to 360 degrees to meet the requirement of omnidirectional movement of the grabber. In particular, the rotation limit mechanism of the rotating base adopts a mechanical limit switch to improve safety and reliability.

[0018] Furthermore, the components of the linkage mechanism are connected by pins to improve the convenience and flexibility of assembly. In particular, the two ends of the pins are designed with anti-detachment caps to prevent loosening or falling off during operation.

[0019] Furthermore, the grabbing action of the grabbing frame is coordinated and managed by the control system. The control system monitors the position and status of the grabbing frame in real time through sensors and automatically adjusts the working parameters of the motor and cylinder according to a preset program to achieve intelligent operation. In particular, the sensors use photoelectric encoders to improve detection accuracy and response speed.

[0020] In summary, this utility model, through its innovative structural design and linkage mechanism, provides a highly efficient, stable, and environmentally friendly automatic cotton-grabbing device, which is suitable for the cotton processing industry and has broad application value.

[0021] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of the three-dimensional structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the bag-grabbing frame of this utility model;

[0025] Figure 3 This is an enlarged view of section A of the present invention;

[0026] Figure 4 This is a schematic diagram of the bag-grabbing frame after the protective cover has been removed.

[0027] Figure 5 This is a cross-sectional view of the card block in this utility model.

[0028] Numbering on the map:

[0029] 1. Cotton storage bin; 2. Base; 3. Rotating seat; 4. Movable arm; 5. Motor; 6. Follower arm; 7. Rotating arm; 8. Bag grabber; 9. Protective cover; 10. Cylinder; 11. Piston rod; 12. Clamping plate; 13. Horizontal plate; 14. Gripper; 15. Locking block; 16. Pressing block; 17. Locking hole; 18. First rotating block; 19. First linkage rod; 20. Second linkage rod; 21. Second rotating block; 22. Groove; 23. Spring. Detailed Implementation

[0030] This utility model provides an automatic cotton-grabbing device, combined with an attached... Figure 1 To be continued Figure 5 The specific embodiments of this utility model are described in detail below. The device in this embodiment includes a cotton storage bin 1, a base 2, a rotating seat 3, a linkage arm mechanism, a bale grabber 8 and its grabbing mechanism, a linkage rod transmission system, a protective cover 9, and a fixing mechanism. The design and function of each component have been optimized to achieve efficient, stable, and environmentally friendly cotton grabbing.

[0031] Firstly, from an overall structural perspective, the cotton storage bin 1 stores cotton awaiting processing. Inside, a base 2 is bolted in place, and a rotating seat 3 is rotatably mounted on base 2. The rotating seat 3, as the core support point of the entire device, is connected to the base 2 using bearings to ensure smooth and reliable rotational movement. The rotation angle range of the rotating seat 3 is set from 0 to 360 degrees, meeting the omnidirectional movement requirements of the bale grabber 8. The rotation limit mechanism of the rotating seat 3 uses a mechanical limit switch to prevent damage to the equipment due to excessive rotation. The bottom of the base 2 is designed with shock-absorbing pads to reduce vibration and noise generated during equipment operation, improving overall stability.

[0032] The linkage arm mechanism consists of a movable arm 4, a follower arm 6, and a rotating arm 7. One end of the movable arm 4 is connected to the rotating base 3 via a pin, and the other end is hinged to the rotating arm 7. Similarly, one end of the follower arm 6 is connected to the rotating base 3 via a pin, and the other end is hinged to the rotating arm 7, forming a three-arm linkage structure. A motor 5 is fixedly mounted on the rotating base 3, and the output end of the motor 5 is connected to the transmission part of the movable arm 4 via gear or belt drive. The motor 5 drives the movable arm 4 to rotate, causing the follower arm 6 and the rotating arm 7 to move in tandem, thereby adjusting the position of the bag-grabbing frame 8. This three-arm linkage structure design enables the bag-grabbing frame 8 to move flexibly in three-dimensional space, adapting to the needs of grabbing cotton bales in different positions. Furthermore, the control circuit of the motor 5 integrates a frequency converter, which can adjust the output speed according to actual needs, achieving flexible start and stop and avoiding mechanical impact.

[0033] A bale-grabbing frame 8 is mounted at the end of a rotating arm 7, on which two symmetrically arranged bale-grabbing shafts are rotatably mounted. Each bale-grabbing shaft is externally fitted with symmetrically arranged clamping plates 12, which are fixedly connected by a cross plate 13 to enhance structural stability. A mounting bracket is also fixed between the clamping plates 12, and several grippers 14 arranged in an array are mounted on the mounting bracket. The surface of the grippers 14 is coated with a non-slip coating made of polyurethane material to increase friction with the cotton bales and improve the reliability of the gripping. A cylinder 10 is rotatably mounted on the bale-grabbing frame 8, and a piston rod 11 is installed inside the cylinder 10. The end of the piston rod 11 is movably hinged to one of the clamping plates 12. By driving the piston rod 11 to extend and retract through the cylinder 10, the opening and closing of the clamping plate 12 is controlled, thereby completing the gripping and release of the cotton bales. The stroke range of the cylinder 10 and the opening and closing angle of the clamping plate 12 are precisely calculated to accommodate cotton bales of different sizes.

[0034] The linkage transmission system includes a first rotating block 18, a second rotating block 21, a first linkage rod 19, and a second linkage rod 20. The first rotating block 18 and the second rotating block 21 are fixedly sleeved at one end of each of the two gripping shafts. The first linkage rod 19 and the second linkage rod 20 are movably hinged to one side of each of the two rotating blocks 18 and 21, respectively. The first linkage rod 19 and the second linkage rod 20 slide together to form a linkage mechanism, ensuring synchronous movement of the two gripping shafts, thereby guaranteeing the synchronous opening and closing of the clamping plate 12. The sliding engagement of the first linkage rod 19 and the second linkage rod 20 adopts a linear guide structure, reducing friction and improving motion accuracy. This linkage transmission system design makes the gripping action more coordinated and consistent, avoiding gripping failures or equipment damage caused by asynchrony.

[0035] The protective cover 9 and its fixing mechanism are designed to prevent cotton lint from scattering and reduce environmental pollution. The protective cover 9 is detachably installed on the outside of the grabber frame 8, and is made of transparent acrylic sheet for easy observation of its operation during the grabbing process. The edges of the protective cover 9 are designed with sealing strips to further prevent cotton lint from scattering. The protective cover 9 has a locking hole 17, and the mounting bracket has an integrally formed locking block 15 that matches the locking hole 17. Both sides of the locking block 15 have grooves 22, and inclined pressing blocks 16 are slidably connected within the grooves 22. A spring 23 is fixedly connected between the pressing block 16 and the inner wall of the groove 22. Through the elastic force of the spring 23, the pressing block 16 is pressed tightly against the locking hole 17, ensuring the protective cover 9 is securely installed. The inclined surface of the pressing block 16 is designed at a 45-degree angle, which allows the spring 23 to be automatically compressed when the locking block 15 is inserted into the locking hole 17, and also provides a self-locking function based on the elastic force of the spring 23 after full insertion. The thickness and width of the locking block 15 are precisely calculated to ensure that the clearance between it and the locking hole 17 is controlled within 0.1 mm, guaranteeing the firmness and stability of the installation. The elastic coefficient of the spring 23 has been experimentally verified to ensure that it maintains stable elastic performance during long-term use.

[0036] In actual operation, the working principle of this device is as follows: S1 First, the cotton bales to be processed are placed in the cotton storage bin 1. After the device is started, the motor 5 drives the movable arm 4 to rotate according to the preset program, which in turn drives the follower arm 6 and the rotating arm 7 to move in coordination, adjusting the position of the bale grabber 8. S2 When the bale grabber 8 moves to the target position, the control system monitors the position and status of the bale grabber 8 in real time through the photoelectric encoder, and automatically adjusts the working parameters of the motor 5 and the cylinder 10 according to the preset program. S3 Subsequently, the cylinder 10 drives the piston rod 11 to extend and retract, controlling the opening and closing of the clamp plate 12, so that the gripper 14 contacts and grabs the cotton bale. S4 During this process, the sliding cooperation of the first linkage rod 19 and the second linkage rod 20 ensures that the two grabbing shafts move synchronously, thereby ensuring the synchronous opening and closing of the clamp plate 12 and avoiding grabbing failure due to asynchrony. S5 After the grabbing is completed, the motor 5 drives the linkage arm mechanism again to move the bale grabber 8 back to the initial position or the designated position, completing one grabbing operation. Throughout the entire grabbing process, the protective cover 9 effectively prevents cotton lint from scattering and reduces environmental pollution. At the same time, its transparent material makes it easy for operators to observe the operating status.

[0037] In this embodiment, the grabbing action of the grabbing frame 8 is coordinated and managed by the control system. The control system monitors the position and status of the grabbing frame 8 in real time through sensors and automatically adjusts the working parameters of the motor 5 and cylinder 10 according to a preset program to achieve intelligent operation. The sensor adopts a photoelectric encoder to improve detection accuracy and response speed. In addition, the connection between the base 2 and the cotton storage bin 1 is fixed with bolts, which facilitates disassembly and maintenance. The components of the linkage arm mechanism are connected by pins, which improves the convenience and flexibility of assembly. The two ends of the pins are designed with anti-detachment caps to prevent loosening or falling off during operation.

[0038] In summary, this utility model, through its innovative structural design and linkage mechanism, provides a highly efficient, stable, and environmentally friendly automatic cotton-grabbing device, which is suitable for the cotton processing industry and has broad application value.

[0039] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic ginning device, characterized in that The device includes a cotton storage bin (1), a base (2), a rotating seat (3), a linkage arm mechanism, a bale grabber (8), a linkage rod transmission system, and a protective cover (9). The base (2) is fixedly installed inside the cotton storage bin (1). The rotating seat (3) is rotatably installed on the base (2). The rotating seat (3) is connected to the linkage arm mechanism. The bale grabber (8) is installed at the end of the linkage arm mechanism. A grabbing mechanism is provided on the bale grabber (8). The grabbing mechanism achieves synchronous movement through the linkage rod transmission system. The protective cover (9) is detachably installed on the outside of the bale grabber (8).

2. The automatic ginning apparatus of claim 1, wherein The linkage arm mechanism includes a movable arm (4), a follower arm (6), and a rotating arm (7). One end of the movable arm (4) is rotatably connected to the rotating seat (3), and the other end is movably hinged to the rotating arm (7). One end of the follower arm (6) is rotatably connected to the rotating seat (3), and the other end is movably hinged to the rotating arm (7), forming a three-arm linkage structure.

3. The automatic cotton-grabbing device as described in claim 2, characterized in that... A motor (5) is fixedly installed on the rotating seat (3). The output end of the motor (5) is connected to the transmission part of the movable arm (4). The transmission part adopts a gear or belt transmission method.

4. The automatic cotton-grabbing device as described in claim 1, characterized in that... The grabbing frame (8) has two symmetrically arranged grabbing shafts rotatably mounted on it. Each grabbing shaft is fixedly fitted with a clamping plate (12). The clamping plates (12) are fixedly connected to each other by a horizontal plate (13). A mounting bracket is also fixed between the clamping plates (12). Several grippers (14) are arranged in an array on the mounting bracket.

5. The automatic cotton-grabbing device as described in claim 4, characterized in that... A cylinder (10) is rotatably mounted on the grabbing frame (8). A piston rod (11) is provided inside the cylinder (10). The end of the piston rod (11) is movably hinged to one of the clamping plates (12). The cylinder (10) drives the piston rod (11) to extend and retract, controlling the opening and closing of the clamping plate (12).

6. The automatic cotton-grabbing device as described in claim 1, characterized in that... The linkage transmission system includes a first rotating block (18), a second rotating block (21), a first linkage rod (19), and a second linkage rod (20). One end of each of the two gripping shafts is fixedly fitted with the first rotating block (18) and the second rotating block (21). The first linkage rod (19) and the second linkage rod (20) are movably hinged to one side of each of the first rotating block (18) and the second rotating block (21). The first linkage rod (19) and the second linkage rod (20) are in sliding engagement.

7. The automatic cotton-grabbing device as described in claim 1, characterized in that... The protective cover (9) has a locking hole (17), and the mounting bracket has an integrally formed locking block (15). The locking block (15) matches the locking hole (17). The two sides of the locking block (15) have grooves (22). An inclined pressing block (16) is slidably connected in the groove (22). A spring (23) is fixedly connected between the pressing block (16) and the inner wall of the groove (22).

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