A large package plying adjusting device

Abstract

This invention relates to the field of textile yarn doubling technology and discloses a large-bundle yarn doubling adjustment device, comprising: a base, on which a fixed bracket is fixedly installed, and on which a rotating frame is rotatably installed. Two symmetrically arranged support arms are provided on one side of the rotating frame, and each support arm is connected to the top of the fixed bracket by a spring. This invention drives the lifting seat to rise through an inflatable component, causing the yarn doubling bobbin to disengage from the roller. At the same time, a stop airbag inflates and abuts against the rotating rod. The stop airbag resists the rotation of the rotating rod through friction and absorbs the inertial force of the yarn doubling bobbin when it stops rotating by using elastic deformation, forming a protective disengagement and abutment, and flexible braking. This avoids the problem of the yarn doubling bobbin being continuously squeezed by the stationary roller due to inertia, avoids yarn wear, pilling, breakage, and roll misalignment, ensures yarn integrity and roll flatness, reduces roller surface wear, extends equipment service life, and significantly improves the stability of yarn doubling operations and product qualification rate.

Description

Technical Field

[0001] This invention relates to the field of textile yarn doubling technology, and more specifically to a large-bundle yarn doubling adjustment device. Background Technology

[0002] Generally speaking, the large roll winding adjustment device is a key piece of equipment used in industries such as textiles and chemical fibers to realize the merging and winding of multiple strands of yarn, tension adjustment and roll forming. During the winding operation, the winding drum needs to be driven to rotate through the cooperation of the roller and the winding drum to achieve uniform winding of the yarn. At the same time, the winding diameter of the winding drum needs to be precisely controlled to ensure that the product specifications are uniform and meet the needs of subsequent processing.

[0003] In the spinning process of textiles, the control of the yarn winding diameter and smooth shutdown of the spinning bobbin are core processes, directly affecting the tightness, flatness, and integrity of the yarn package. However, in actual operation, when the roller drives the spinning bobbin to rotate until the yarn reaches the specified diameter, the roller will stop rotating according to the control signal. However, the spinning bobbin driven by the roller cannot stop synchronously with the roller due to its own inertia and will continue to rotate. At this time, the roller is stationary, and a relative motion is formed between the two. This causes the contact point between the roller and the yarn on the spinning bobbin to be continuously squeezed by the inertial force of the spinning bobbin. This not only easily causes wear and fuzzing on the yarn surface, but may even lead to the yarn being torn, affecting product quality. At the same time, long-term inertial squeezing will also aggravate the wear on the roller surface and shorten the service life of the equipment. In addition, inertial rotation may also cause the yarn to wrap and deviate on the spinning bobbin, damaging the flatness of the package. Based on this, the present invention aims to provide a large package spinning adjustment device that can counteract the inertial force of the spinning bobbin, avoid squeezing damage at the contact point, and improve the stability of spinning operation and product qualification rate. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a large roll parallel adjustment device to solve the technical problems in the prior art.

[0005] The objective of this invention can be achieved through the following technical solutions: A large-roll parallel adjustment device, comprising: A base is provided, on which a fixed bracket is fixedly mounted. A rotating frame is rotatably mounted on the fixed bracket. Two symmetrically arranged support arms are provided on one side of the rotating frame. Each support arm is connected to the top of the fixed bracket by a spring. A lifting seat is slidably mounted on the end of each support arm away from the rotating frame. A rotating rod is rotatably mounted in each lifting seat. The rotating rod is coaxially fixedly connected to a yarn winding bobbin through a connecting assembly. The yarn winding bobbin is used to wind yarn. A roller is rotatably mounted on the base. The roller is driven to rotate by a drive source. The spring preload causes the yarn winding bobbin to abut against the roller. A fixed seat is fixedly installed on the side of the lifting seat away from the yarn bobbin. A stop airbag is fixedly installed on the inner wall of the fixed seat. The stop airbag is connected to an inflation assembly, and the inflation assembly is used to drive the lifting seat to rise. A limiting block is slidably mounted on the base. The limiting block is driven to move by the output source. When the yarn winding diameter on the yarn bobbin reaches the standard, the output source drives the limiting block to abut against the rotating frame, so that the rotating frame stops.

[0006] As a further embodiment of the present invention: a connecting rod is fixedly installed on the top of the lifting seat, the top end of the connecting rod passes through the support arm, and a horizontal plate is fixedly connected to the end of the connecting rod. A lifting airbag is provided between the horizontal plate and the support arm, and the lifting airbag is connected to the inflation assembly.

[0007] As a further aspect of the present invention: the bottom of the lifting seat is connected to the support arm by a tension spring, and the preload of the tension spring causes the lifting seat to descend.

[0008] As a further embodiment of the present invention: a limiting frame is fixedly installed on the top of the support arm, the limiting frame is located below the horizontal plate, and the lifting airbag is located inside the limiting frame.

[0009] As a further embodiment of the present invention: a sleeve is provided inside the limiting frame, the sleeve is fixedly installed on the top of the support arm, and the sleeve is sleeved on the outer circular surface of the connecting rod. The outer circular surface of the connecting rod is slidably connected to the inner wall of the sleeve, and the lifting airbag is sleeved on the outer circular surface of the sleeve.

[0010] As a further embodiment of the present invention: the inflation assembly includes a main air pipe, a first branch air pipe and a second branch air pipe. The main air pipe is fixedly installed on the support arm and is connected to an external high-pressure gas source. The first branch air pipe and the second branch air pipe are both connected to the main air pipe. The first branch air pipe is connected to the lifting airbag, and the second branch air pipe is connected to the telescopic tube, the electric control valve and the shutdown airbag in sequence.

[0011] As a further embodiment of the present invention: two pins are fixedly installed on the top of the electric control valve, and the electric control valve is fixedly installed on the lifting seat. An energizing plate is fixedly installed on one side of the support arm. The energizing plate is located above the pins. When the lifting airbag inflates and causes the horizontal plate to rise, the horizontal plate drives the connecting rod, the lifting seat and the fixed seat to rise synchronously. At this time, the electric control valve rises synchronously, so that the pins are connected to the energizing plate, thereby opening the electric control valve to inflate the stop airbag, so that the stop airbag inflates and abuts against the rotating rod.

[0012] As a further embodiment of the present invention: a cross-shaped insert is fixedly installed at one end of each of the two rotating rods, and a cross-shaped slot is opened at both ends of the yarn bobbin. The cross-shaped slot is slidably engaged with the cross-shaped insert, and one of the support arms is fixedly installed on the rotating frame, while the other support arm is slidably installed on the rotating frame. The support arm is driven to move by a power component.

[0013] The beneficial effects of this invention are: 1. In this invention, the lifting seat is driven to rise by the inflatable component, which causes the yarn-drawing bobbin to detach from the roller. At the same time, the stop airbag inflates and abuts against the rotating rod. The stop airbag hinders the rotation of the rotating rod through friction and absorbs the inertial force of the yarn-drawing bobbin when it stops rotating by using elastic deformation. This forms a protective barrier of detachment and abutment, avoiding the problem of continuous squeezing of the yarn-drawing bobbin against the stationary roller due to inertia. It also avoids yarn wear, fuzzing, breakage and roll misalignment, ensuring yarn integrity and roll flatness. At the same time, it reduces roller surface wear, extends equipment service life, and significantly improves the stability of yarn-drawing operation and product qualification rate. 2. In this invention, the tight contact between the yarn dollop and the roller is maintained by the spring preload. As the diameter of the yarn dollop increases, the support arm rotates slightly around the rotating frame and compresses the spring. The spring preload is always adaptively adjusted to ensure continuous and stable power transmission. This avoids the problems of power interruption, yarn slack, and uneven winding caused by changes in the diameter of the yarn dollop in traditional devices. At the same time, the tension spring pulls down and positions the lifting seat, further ensuring the stability of the contact between the yarn dollop and the roller, improving the tightness and uniformity of the yarn package, and adapting to the dynamic adjustment requirements of large package yarn dolloping. 3. In this invention, the cross-shaped insert and cross-shaped slot are connected by a sliding support arm to achieve quick loading and unloading and coaxial fixation of the yarn dollop. The cross structure can effectively transmit torque and avoid relative sliding during rotation. At the same time, the yarn dollop is lifted and positioned smoothly and accurately by relying on components such as lifting airbags, limit frames, and sleeves. There is no need for manual adjustment, fixing and monitoring of the roll diameter, which greatly simplifies the operation process, shortens the dollop changing interval time, improves the efficiency of automated operation, and adapts to the needs of large-scale textile yarn dollop production. Attached Figure Description

[0014] The invention will now be further described with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the tension spring in this invention; Figure 3 This is a schematic diagram of the lifting seat in this invention; Figure 4 This is a schematic diagram of the limiting frame in this invention; Figure 5 This is a schematic diagram of the yarn dotting bobbin structure in this invention.

[0016] In the diagram: 1. Base; 2. Fixed bracket; 3. Rotating frame; 4. Support arm; 5. Spring; 6. Lifting seat; 7. Rotating rod; 701. Cross insert; 8. Yarn dotting cylinder; 801. Cross slot; 9. Roller; 10. Limiting block; 11. Fixed seat; 12. Stop airbag; 13. Horizontal plate; 14. Connecting rod; 15. Limiting frame; 16. Lifting airbag; 17. Main air pipe; 18. First branch air pipe; 19. Second branch air pipe; 20. Telescopic tube; 21. Electric control valve; 22. Power board; 23. Pin; 24. Tension spring; 25. Sleeve. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-5 As shown, the present invention is a large-roll parallel adjustment device, comprising: A base 1 is provided, on which a fixed bracket 2 is fixedly installed. A rotating frame 3 is rotatably installed on the fixed bracket 2. Two symmetrically arranged support arms 4 are provided on one side of the rotating frame 3. Each support arm 4 is connected to the top of the fixed bracket 2 by a spring 5. A lifting seat 6 is slidably installed at the end of each support arm 4 away from the rotating frame 3. A rotating rod 7 is rotatably installed in each lifting seat 6. The rotating rod 7 is coaxially fixedly connected to the yarn winding cylinder 8 through a connecting assembly. The yarn winding cylinder 8 is used to wind yarn. A roller 9 is rotatably installed on the base 1. The roller 9 is driven to rotate by a drive source. The preload of the spring 5 causes the yarn winding cylinder 8 to abut against the roller 9. A fixed seat 11 is fixedly installed on the side of the lifting seat 6 away from the yarn bobbin 8. A stop airbag 12 is fixedly installed on the inner wall of the fixed seat 11. The stop airbag 12 is connected to an inflation assembly, and the inflation assembly is used to drive the lifting seat 6 to rise. Limiting block 10 is slidably mounted on base 1. The limiting block 10 is driven to move by the output source. When the yarn winding diameter on the yarn bobbin 8 reaches the standard, the output source drives the limiting block 10 to abut against the rotating frame 3, so that the rotating frame 3 is stationary.

[0019] The working principle of this invention is as follows: Under normal winding conditions, the drive source starts and drives the roller 9 to rotate at a constant speed. Due to the preload of the spring 5, the support arm 4 is continuously pushed downward, causing the yarn coil 8 to fit tightly against the surface of the roller 9. The roller 9 drives the yarn coil 8 to rotate synchronously through the friction of the contact surface, and the rotating rod 7 rotates together with the yarn coil 8. In actual production, the device is equipped with a transverse reciprocating guide assembly and a yarn cutting device. The guide assembly drives the yarn to move back and forth on the surface of the yarn coil 8 to achieve uniform yarn winding; the yarn cutting device quickly cuts the yarn after the winding diameter of the yarn coil 8 reaches the standard. As the number of yarn winding layers increases, the overall diameter of the yarn coil 8 gradually increases, which will generate an upward pushing force on the support arm 4, pushing the support arm 4 to rotate slightly upward around the rotating frame 3. The spring 5 is slowly compressed. During this process, the preload of the spring 5 always maintains the tight contact between the yarn coil 8 and the roller 9, effectively solving the problems of power transmission interruption, yarn slack, and uneven winding caused by the change in the diameter of the yarn coil 8 in traditional devices, and ensuring stable transmission of winding power. When the yarn diameter on the doubling drum 8 reaches the preset standard, the output source drives the limiting block 10 to move horizontally until the limiting block 10 tightly abuts against the rotating frame 3, restricting the rotational freedom of the rotating frame 3. The support arm 4 can no longer adjust the angle upward. At this time, the cutting component moves synchronously to cut the yarn. Then the inflation component starts, pushing the lifting seat 6 to move upward along the support arm 4, causing the doubling drum 8 to disengage from the roller 9, completely cutting off the winding power and preventing the yarn from being over-wound due to continuous force on the doubling drum 8. Due to inertia, the doubling drum 8 will continue to rotate a certain distance, just enough to wind up and fix the cut yarn end. At the same time, the inflation component inflates the stop airbag 12. After the stop airbag 12 expands, it tightly abuts against the rotating rod 7, resisting the rotation of the rotating rod 7 through friction. At the same time, the stop airbag 12 undergoes elastic deformation, absorbing the inertial force during the stopping process of the doubling drum 8. This solves the problem that traditional hard braking easily leads to yarn impact damage and doubling drum 8 shaking, achieving a smooth stop for the doubling drum 8.

[0020] like Figures 1-3 As shown, in a preferred embodiment of the present invention, a connecting rod 14 is fixedly installed on the top of the lifting seat 6, the top end of the connecting rod 14 passes through the support arm 4, and a horizontal plate 13 is fixedly connected to the end of the connecting rod 14. A lifting airbag 16 is provided between the horizontal plate 13 and the support arm 4, and the lifting airbag 16 is connected to the inflation assembly.

[0021] In practical application, when it is necessary to detach the yarn bobbin 8 from the roller 9, the inflation component inflates the lifting airbag 16. The expansion of the lifting airbag 16 generates an upward uniform thrust on the horizontal plate 13. The horizontal plate 13 drives the connecting rod 14 to rise synchronously, thereby pulling the lifting seat 6 to move upward smoothly, ensuring that the yarn bobbin 8 detaches from the roller 9 accurately and vertically. After replacing the yarn bobbin 8, the inflation component deflates, the lifting airbag 16 and the stop airbag 12 contract, and the lifting seat 6 descends under its own weight and the weight of the yarn bobbin 8, so that the yarn bobbin 8 re-engages with the roller 9, quickly resuming the winding operation and shortening the bobbin replacement interval time.

[0022] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the bottom of the lifting seat 6 is connected to the support arm 4 by a tension spring 24, and the preload of the tension spring 24 causes the lifting seat 6 to descend.

[0023] In practical application, when the inflation component deflates and the supporting force of the lifting airbag 16 disappears, the tension spring 24 can quickly pull the lifting seat 6 down along the support arm 4, causing the yarn dotting cylinder 8 to quickly and tightly fit into the roller 9, ensuring timely restoration of power transmission. At the same time, during the entire process of the yarn dotting cylinder 8 winding the yarn, the preload of the tension spring 24 can maintain the lifting seat 6 in the initial position, preventing the lifting seat 6 from shifting due to vibration, further ensuring stable contact between the yarn dotting cylinder 8 and the roller 9, and improving the uniformity of yarn winding.

[0024] like Figures 1-4 As shown, in a preferred embodiment of the present invention, a limiting frame 15 is fixedly installed on the top of the support arm 4, the limiting frame 15 is located below the horizontal plate 13, and the lifting airbag 16 is located inside the limiting frame 15.

[0025] In practical applications, this embodiment addresses the issue that the lifting airbag 16 may experience positional shifts or uneven deformation during inflation, leading to an imbalance in the force on the horizontal plate 13 and consequently affecting the lifting stability of the lifting seat 6. By tightly fitting the inner wall of the limiting frame 15 to the outer surface of the lifting airbag 16, the horizontal displacement of the lifting airbag 16 can be strictly limited, ensuring that the lifting airbag 16 only expands in the vertical direction. The upward thrust is concentrated in the middle area of ​​the horizontal plate 13, causing the horizontal plate 13 to drive the connecting rod 14 and the lifting seat 6 to rise and fall vertically. At the same time, the limiting frame 15 can limit the maximum expansion of the lifting airbag 16, preventing damage to the airbag due to over-inflation and extending the service life of the components.

[0026] like Figures 1-4 As shown, in a preferred embodiment of the present invention, a sleeve 25 is provided inside the limiting frame 15. The sleeve 25 is fixedly installed on the top of the support arm 4 and sleeved on the outer circular surface of the connecting rod 14. The outer circular surface of the connecting rod 14 is slidably connected to the inner wall of the sleeve 25, and the lifting airbag 16 is sleeved on the outer circular surface of the sleeve 25.

[0027] In practical applications, the sleeve 25 forms an isolation structure, so that the lifting airbag 16 only contacts the outer surface of the sleeve 25, avoiding direct friction with the connecting rod 14 and reducing lifting resistance. At the same time, the sleeve 25 can guide the lifting movement of the connecting rod 14, preventing the connecting rod 14 from deviating and ensuring the precise movement of the lifting seat 6.

[0028] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the inflation assembly includes a main air pipe 17, a first branch air pipe 18, and a second branch air pipe 19. The main air pipe 17 is fixedly installed on the support arm 4 and is connected to an external high-pressure gas source. The first branch air pipe 18 and the second branch air pipe 19 are both connected to the main air pipe 17. The first branch air pipe 18 is connected to the lifting airbag 16, and the second branch air pipe 19 is connected in sequence to the telescopic tube 20, the electric control valve 21, and the shutdown airbag 12.

[0029] In practical application, external high-pressure gas is uniformly delivered through the main air pipe 17 and then supplied to the two airbags through branch pipes to ensure synchronous inflation speed and achieve smooth lifting of the lifting seat 6. The telescopic pipe 20 can freely extend and retract with the lifting seat 6 to adapt to displacement changes, preventing the second branch air pipe 19 from being pulled or broken, and ensuring the integrity of the air supply channel. The electric control valve 21 can precisely control the inflation and deflation timing of the stop airbag 12 to ensure that the yarn bobbin 8 is far away from the roller 9 before starting the inertial braking, avoiding the problem of braking inertial force being transmitted to the roller 9, which would cause the yarn to be damaged by impact.

[0030] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the top of the electric control valve 21 is fixedly mounted with two pins 23, and the electric control valve 21 is fixedly mounted on the lifting seat 6. An energizing plate 22 is fixedly mounted on one side of the support arm 4. The energizing plate 22 is located above the pins 23. When the lifting airbag 16 expands and causes the horizontal plate 13 to rise, the horizontal plate 13 drives the connecting rod 14, the lifting seat 6 and the fixed seat 11 to rise synchronously. At this time, the electric control valve 21 rises synchronously, so that the pins 23 are connected to the energizing plate 22, thereby opening the electric control valve 21 to inflate the stop airbag 12, so that the stop airbag 12 expands and abuts against the rotating rod 7.

[0031] In practical application, when the yarn winding of the doubling bobbin 8 reaches the target, the lifting airbag 16 inflates first, pushing the horizontal plate 13 to rise. The horizontal plate 13 drives the lifting seat 6, the fixed seat 11, and the electric control valve 21 to rise synchronously through the connecting rod 14. When the lifting seat 6 rises to the preset height, that is, when the yarn winding bobbin 8 is completely separated from the roller 9, the pin 23 makes precise contact with the power board 22 and conducts the circuit. The electric control valve 21 opens automatically, and the second air pipe 19 supplies air to the stop airbag 12. After the stop airbag 12 expands, it not only assists in pushing the lifting seat 6 to rise, but also closely abuts against the rotating rod 7. Through friction, the rotating rod 7 is quickly braked, so that the yarn winding bobbin 8 stops quickly, avoiding yarn pulling due to braking too early and yarn loosening due to braking too late.

[0032] like Figures 1-5 As shown, in a preferred embodiment of the present invention, a cross-shaped insert 701 is fixedly installed at one end of each of the two rotating rods 7, and a cross-shaped slot 801 is provided at both ends of the yarn-coating cylinder 8. The cross-shaped slot 801 is slidably engaged with the cross-shaped insert 701, and one of the support arms 4 is fixedly installed on the rotating frame 3, while the other support arm 4 is slidably installed on the rotating frame 3. The support arm 4 is driven to move by a power component.

[0033] In practical application, during installation, the power component drives the sliding support arm 4 to move outward, increasing the distance between the two rotating rods 7. This aligns the cross slots 801 at both ends of the yarn-twisting bobbin 8 with the cross insert 701. Then, the support arm 4 is driven to move inward, allowing the cross insert 701 to precisely engage with the cross slot 801. This achieves coaxial fixation between the yarn-twisting bobbin 8 and the rotating rods 7. The cross structure effectively transmits torque, preventing the yarn-twisting bobbin 8 from sliding relative to the rotating rods 7 during rotation, thus ensuring stable winding power. During disassembly, the power component drives the support arm 4 to move outward, separating the cross insert 701 from the cross slot 801. This allows for quick removal of the yarn-twisting bobbin 8, significantly shortening bobbin replacement time and adapting to the needs of large-scale production.

[0034] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A large-roll parallel adjustment device, characterized in that, include: A base (1) is fixedly mounted on a fixed bracket (2). A rotating frame (3) is rotatably mounted on the fixed bracket (2). Two symmetrically arranged support arms (4) are provided on one side of the rotating frame (3). Each support arm (4) is connected to the top of the fixed bracket (2) by a spring (5). A lifting seat (6) is slidably mounted on the end of each support arm (4) away from the rotating frame (3). A rotating rod (7) is rotatably mounted in each lifting seat (6). The rotating rod (7) is coaxially fixedly connected to the yarn winding cylinder (8) through a connecting component. The yarn winding cylinder (8) is used to wind yarn. A roller (9) is rotatably mounted on the base (1). The roller (9) is driven to rotate by a drive source. The preload of the spring (5) causes the yarn winding cylinder (8) to abut against the roller (9). A fixed seat (11) is fixedly installed on the side of the lifting seat (6) away from the yarn bobbin (8). A stop airbag (12) is fixedly installed on the inner wall of the fixed seat (11). The stop airbag (12) is connected to the inflation assembly, and the inflation assembly is used to drive the lifting seat (6) to rise. Limiting block (10) is slidably mounted on base (1). The limiting block (10) is driven to move by the output source. When the yarn winding diameter on the yarn bobbin (8) reaches the standard, the output source drives the limiting block (10) to abut against the rotating frame (3), so that the rotating frame (3) is stationary.

2. The large-roll parallel adjustment device according to claim 1, characterized in that, A connecting rod (14) is fixedly installed on the top of the lifting seat (6). The top end of the connecting rod (14) passes through the support arm (4), and a horizontal plate (13) is fixedly connected to the end of the connecting rod (14). A lifting airbag (16) is provided between the horizontal plate (13) and the support arm (4), and the lifting airbag (16) is connected to the inflation assembly.

3. The large roll parallel adjustment device according to claim 2, characterized in that, The bottom of the lifting seat (6) is connected to the support arm (4) by a tension spring (24), and the preload of the tension spring (24) causes the lifting seat (6) to descend.

4. The large roll parallel adjustment device according to claim 2, characterized in that, The support arm (4) is fixedly installed with a limiting frame (15) at the top. The limiting frame (15) is located below the horizontal plate (13), and the lifting airbag (16) is located inside the limiting frame (15).

5. A large-roll parallel adjustment device according to claim 4, characterized in that, The limiting frame (15) is provided with a sleeve (25), which is fixedly installed on the top of the support arm (4) and sleeve (25) is sleeved on the outer circle of the connecting rod (14). The outer circle of the connecting rod (14) is slidably connected to the inner wall of the sleeve (25), and the lifting airbag (16) is sleeved on the outer circle of the sleeve (25).

6. A large-roll parallel adjustment device according to claim 2, characterized in that, The inflation assembly includes a main air pipe (17), a first branch air pipe (18), and a second branch air pipe (19). The main air pipe (17) is fixedly installed on the support arm (4) and is connected to an external high-pressure gas source. The first branch air pipe (18) and the second branch air pipe (19) are both connected to the main air pipe (17). The first branch air pipe (18) is connected to the lifting airbag (16). The second branch air pipe (19) is connected to the telescopic tube (20), the electric control valve (21), and the shutdown airbag (12) in sequence.

7. A large-roll parallel adjustment device according to claim 6, characterized in that, The top of the electric control valve (21) is fixedly installed with two pins (23), and the electric control valve (21) is fixedly installed on the lifting seat (6). The side of the support arm (4) is fixedly installed with an electric plate (22). The electric plate (22) is located above the pins (23). When the lifting airbag (16) expands and the horizontal plate (13) rises, the horizontal plate (13) drives the connecting rod (14), the lifting seat (6) and the fixed seat (11) to rise synchronously. At this time, the electric control valve (21) rises synchronously and the pins (23) are connected to the electric plate (22), thereby opening the electric control valve (21) to inflate the stop airbag (12), so that the stop airbag (12) expands and abuts against the rotating rod (7).

8. A large-roll parallel adjustment device according to claim 1, characterized in that, Two rotating rods (7) are fixedly installed with cross-shaped inserts (701) at opposite ends. Both ends of the yarn bobbin (8) are provided with cross-shaped slots (801). The cross-shaped slots (801) are slidably engaged with the cross-shaped inserts (701). One of the support arms (4) is fixedly installed on the rotating frame (3), and the other support arm (4) is slidably installed on the rotating frame (3). The support arm (4) is driven to move by a power component.

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