Tension balance control device of cloth slitting and rewinding machine

Abstract

The invention discloses a tension balance control device of a cloth slitting and rewinding machine, which belongs to the technical field of slitting and rewinding equipment and comprises a rack, a detachable unwinding roller arranged in the middle of the rear end of the rack, a guide roller arranged on the upper portion of the rear end of the rack, a winding frame arranged at the front end of the rack, and a tensioning roller arranged on the upper portion of the rear end of the winding frame. A detachable winding roller is arranged in the middle of the front end of the rack, the winding frame is provided with a first driving motor for driving the winding roller to rotate, a clamping mechanism and a slitting mechanism are arranged in the middle of the upper end of the rack, adjusting cavities are formed in the left end and the right end of the winding frame correspondingly, and tension adjusting mechanisms are arranged in the two adjusting cavities of the winding frame correspondingly. The tension adjusting mechanisms are arranged in the left end and the right end of the winding frame, a spring in a first adjusting rod is used for driving a second adjusting rod, the position of a tensioning roller can be automatically adjusted according to cloth tension changes, and the problems of cloth wrinkling, stretching deformation and the like caused by uneven tension are solved.

Description

TECHNICAL FIELD

[0001] The application discloses a tension balance control device of a cloth slitting and rewinding machine and belongs to the technical field of slitting and rewinding equipment. BACKGROUND

[0002] The slitting and rewinding machine is a kind of equipment commonly used in the field of cloth material slitting, which is used for cutting and rewinding the produced cloth raw material roll, and the cloth material is made into rolls of different sizes after slitting and rewinding.

[0003] At present, when the slitting and rewinding machine processes cloth, the cloth needs to be kept straight, which requires adjusting the tension of the cloth during slitting operation. The stability of tension control is related to the winding quality of the product after slitting and rewinding. When the winding roll is winding, the diameter of the winding roll is constantly changing, the change of the diameter causes the change of the cloth tension, so that the cloth produces drift in operation, causing wrinkles after slitting and rewinding. At the same time, after the cutting of the mother roll is completed, the cutting place loses the force and falls to the ground, which is easy to cause the cloth to be stained, causes the cloth to be damaged and affects the product yield of the slitting and rewinding.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. SUMMARY

[0005] The application aims to solve the above problems and provides a tension balance control device of a cloth slitting and rewinding machine, which has the effect of automatically adjusting the cloth tension.

[0006] The application achieves the above-mentioned purpose through the following technical scheme, comprising a rack, a detachable unwinding roll is arranged at the middle part of the rear end of the rack, a guide roller is arranged at the upper part of the rear end of the rack, a winding frame is arranged at the front end of the rack, a tension roller is arranged at the upper part of the rear end of the winding frame, and a detachable winding roll is arranged at the middle part of the front end of the rack. The winding frame is provided with a first driving motor for driving the winding roll to rotate, a clamping mechanism and a slitting mechanism are arranged at the middle part of the upper end of the rack, adjusting cavities are formed in the inner parts of the left and right ends of the winding frame, and a tension adjusting mechanism is arranged in each adjusting cavity of the winding frame. The tension adjusting mechanism comprises a first adjusting rod, a second adjusting rod and a connecting block, the first adjusting rod and the second adjusting rod are vertically arranged, the first adjusting rod is internally provided with a contraction cavity, the lower end of the second adjusting rod extends into the contraction cavity from the upper end of the first adjusting rod, the first adjusting rod is provided with a spring in the contraction cavity, the spring drives the second adjusting rod to extend upward, the connecting block is arranged on the upper end of the second adjusting rod, the connecting block is centrally provided with a through hole, the left and right ends of the winding frame are vertically provided with a communication hole on the side facing each other, the communication hole is in communication with the adjusting cavity, the left and right ends of the tensioning roller respectively pass through the two communication holes and are connected with the connecting block through the through hole on the connecting block. The clamping mechanism comprises two connecting seats, two connecting plates, a lower pressing plate and an upper pressing plate, the upper side of the left and right ends of the rack is provided with a first guide rail, the two connecting seats are arranged on the two first guide rails, the two connecting seats can move forward and backward on the first guide rails, the upper end of the two connecting seats is provided with a connecting rod, the two connecting plates are arranged on the connecting rods of the two connecting seats, the two connecting plates can move up and down on the connecting rods, the left and right ends of the lower pressing plate are connected with the two connecting seats, the left and right ends of the upper pressing plate are connected with the two connecting plates, the upper pressing plate and the lower pressing plate form a transmission channel for the cloth.

[0007] Through the above technical scheme, the cloth to be processed is installed on the unwinding roller, winds around the guide roller after being led out from the unwinding roller, and is rewound on the winding roller after winding around the tensioning roller. The winding roller is driven to rotate by the first driving motor to drive the cloth to be rewound on the winding roller. Then, the cloth is fixed and cut by the clamping mechanism and the slitting mechanism to complete the processing. The tensioning roller is connected at both ends in an elastically liftable manner by the tension adjusting mechanism composed of the first adjusting rod and the second adjusting rod with springs. When the cloth tension fluctuates during the rewinding and slitting of the cloth, the spring drives the second adjusting rod to extend and retract, so that the position of the tensioning roller floats up and down accordingly. The tension adjusting mechanism automatically absorbs and compensates the tension change, effectively prevents the cloth from being stretched and deformed or broken due to excessive tension or from being relaxed and wrinkled due to insufficient tension, and significantly improves the rewinding quality and consistency of the cloth roll.

[0008] As a preferred embodiment, the slitting mechanism comprises a slitting seat, a slitting head and a slitting blade. The upper end of the upper pressing plate is transversely provided with a second guide rail. The slitting seat is arranged on the second guide rail and can move left and right on the second guide rail. The slitting head is arranged on the front side of the slitting seat. The slitting blade is arranged on the slitting head. The lower end of the slitting blade is lower than the lower end of the lower pressing plate in height. The slitting head is provided with a second driving motor for driving the slitting blade to rotate. The cutting direction of the slitting blade is perpendicular to the conveying direction of the cloth.

[0009] Through the above technical scheme, the second driving motor drives the slitting blade to rotate, and the cloth can be slitted by controlling the slitting seat to move on the second guide rail. The cutting direction of the slitting blade is perpendicular to the conveying direction of the cloth, and the height design can effectively ensure that the cut is neat and the size is accurate.

[0010] As a preferred embodiment, the outer side of the winding frame is provided with a control console. The first driving motor and the second driving motor are connected to the control console.

[0011] By adopting the above technical solution and setting up a console to centrally control the first and second drive motors, the operation is centralized and automated.

[0012] Preferably, the frame is equipped with a drive system for moving the drive connector, the connecting plate, and the slitting seat, and the drive system is connected to the control console.

[0013] By adopting the above technical solution, the drive systems that drive the connecting seat, connecting plate and cutting seat to move are all connected to the control console, which allows operators to centrally control the operation of each component through the control console, simplifying the operation process, improving work efficiency, and facilitating the monitoring and adjustment of the equipment.

[0014] Preferably, the drive system is a hydraulic system, a pneumatic system, or an electric system.

[0015] By adopting the above technical solutions, and by using hydraulic, pneumatic, or electric systems, the movement of the connecting seat, connecting plate, and cutting seat becomes more stable and reliable.

[0016] Preferably, each of the two connecting seats is provided with a photoelectric sensor on its opposite side, and the photoelectric sensor is connected to the control console.

[0017] By adopting the above technical solution, photoelectric sensors can be used to detect the position of the fabric edge or whether the fabric is off-center, and linked with the control console to realize preliminary automated monitoring functions, which helps to prevent production failures and material waste. At the same time, the amount of fabric transported can be monitored, thereby achieving precise cutting.

[0018] Preferably, a support plate is provided laterally in the middle of the rear end of the frame, and mounting plates are provided vertically at both ends of the upper side of the support plate. Semi-circular grooves are provided at the upper ends of the two mounting plates, and the left and right ends of the unwinding roller are respectively located in the two semi-circular grooves.

[0019] By adopting the above technical solution, the setting of the support plate and mounting plate makes the installation and disassembly of the unwinding roller simple and quick, facilitates the replacement of unwinding rollers of different specifications, and improves the ease of use and work efficiency of the equipment.

[0020] Compared with the prior art, the beneficial effects of the present invention are: Firstly, by setting tension adjustment mechanisms inside the left and right ends of the winding frame, the spring inside the first adjustment rod drives the second adjustment rod, so that the tension roller can automatically adjust its position according to the changes in fabric tension. When the fabric tension is too high, the tension roller can compress the spring and move downward. When the tension is too low, the spring pushes the tension roller to move upward, thereby effectively balancing the tension of the fabric during the slitting and rewinding process, avoiding problems such as wrinkles and stretching deformation of the fabric due to uneven tension, and improving the quality of fabric slitting and rewinding. Secondly, the connecting seat of the clamping mechanism can move back and forth on the first guide rail, and the connecting plate can move up and down on the connecting rod, which can clamp and fix the fabric, so that the fabric can remain stable during cutting to ensure the quality of cutting, and at the same time prevent the cut fabric from falling to the ground and causing dirt. Thirdly, while clamping and fixing the fabric, the upper and lower pressure plates can cooperate with the connecting seat to drive the cut fabric to move towards the tension roller, which facilitates secondary rewinding of the fabric and improves the ease of use of the device. Fourth, the photoelectric sensor can detect the position information of the fabric during the transmission process in real time and feed the signal back to the control console. Once the fabric deviates or other abnormalities occur, the control console can issue instructions in time to adjust the operation of relevant components. At the same time, it can monitor the winding length of the fabric to further ensure the stability and quality of the fabric cutting and rewinding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram illustrating the working principle of the present invention; Figure 5 This is a cross-sectional view of the tension adjustment mechanism of the present invention.

[0022] Reference numerals: 1. Frame; 2. Unwinding roller; 3. Guide roller; 4. Rewinding frame; 5. Tensioning roller; 6. Rewinding roller; 7. First adjusting rod; 8. Second adjusting rod; 9. Connecting block; 10. Shrinking chamber; 11. Spring; 12. Through hole; 13. Connecting hole; 14. Connecting seat; 15. Connecting plate; 16. Lower pressure plate; 17. Upper pressure plate; 18. First guide rail; 19. Connecting rod; 20. Slitting seat; 21. Slitting head; 22. Slitting blade; 23. Control console; 24. Support plate; 25. Mounting plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In this description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0024] A tension balance control device for a fabric slitting and rewinding machine, such as Figures 1-5 As shown, the machine includes a frame 1, a detachable unwinding roller 2 is provided at the middle of the rear end of the frame 1, a guide roller 3 is provided at the upper part of the rear end of the frame 1, a take-up frame 4 is provided at the front end of the frame 1, a tension roller 5 is provided at the upper part of the rear end of the take-up frame 4, and a detachable take-up roller 6 is provided at the middle of the front end of the frame 1. The fabric to be processed is installed on the unwinding roller 2, and after being drawn out from the unwinding roller 2, it passes around the guide roller 3, then passes around the tension roller 5, and is rewound onto the take-up roller 6. The take-up frame 4 is equipped with a first drive motor that drives the take-up roller 6 to rotate. The middle part of the upper end of the frame 1 is equipped with a clamping mechanism and a cutting mechanism. The take-up roller 6 is driven to rotate by the first drive motor, which drives the fabric to be rewound onto the take-up roller 6. Then, the fabric is fixed and cut by the clamping mechanism and the cutting mechanism to complete the processing. The take-up frame 4 has adjustment cavities inside both the left and right ends. The take-up frame 4 is equipped with tension adjustment mechanisms in both adjustment cavities. The tension adjustment mechanism includes a first adjusting rod 7, a second adjusting rod 8, and a connecting block 9. Both the first adjusting rod 7 and the second adjusting rod 8 are vertically arranged. A contraction cavity 10 is formed inside the first adjusting rod 7. The lower end of the second adjusting rod 8 extends from the upper end of the first adjusting rod 7 into the contraction cavity 10. A spring 11 is installed in the contraction cavity 10 on the first adjusting rod 7 to drive the second adjusting rod 8 upwards. The connecting block 9 is located at the upper end of the second adjusting rod 8, and a through hole 12 is formed in the center of the connecting block 9. Each of the left and right ends of the winding frame 4 has a vertically arranged connecting hole 13 communicating with the adjustment cavity. The tension roller 5 passes through the connecting hole 13 at both ends. The tension roller 5 is connected to the connecting block 9 via two through holes 13 and through holes 12 on the two connecting blocks 9. By setting a tension adjustment mechanism consisting of a first adjusting rod 7 and a second adjusting rod 8 with spring 11, the two ends of the tension roller 5 are connected in a way that can be elastically raised and lowered. During the fabric slitting and rewinding process, when the fabric tension fluctuates, the spring 11 can drive the second adjusting rod 8 to extend and retract, so that the position of the tension roller 5 floats up and down accordingly, automatically absorbing and compensating for tension changes, effectively preventing the fabric from being stretched, deformed or broken due to excessive tension, or from being loose and wrinkled due to insufficient tension, thereby significantly improving the rewinding quality and consistency of the fabric roll.

[0025] The clamping mechanism includes two connecting seats 14, two connecting plates 15, a lower pressure plate 16, and an upper pressure plate 17. First guide rails 18 are provided on the upper sides of both left and right ends of the frame 1. The two connecting seats 14 are respectively mounted on the two first guide rails 18 and can move back and forth on the first guide rails 18. Connecting rods 19 are respectively provided on the upper ends of the two connecting seats 14. The two connecting plates 15 are respectively mounted on the connecting rods 19 on the two connecting seats 14 and can move up and down on the connecting rods 19. The left and right ends of the lower pressure plate 16 are connected to the two connecting seats 14, and the left and right ends of the upper pressure plate 17 are connected to the two connecting plates 15. A transmission channel for the fabric to pass through is formed between the upper pressure plate 17 and the lower pressure plate 16. The design of the connecting plates 15 being able to move up and down on the connecting rods 19 allows... When the two connecting plates 15 move downwards, they can drive the upper pressure plate 17 to press down, cooperating with the lower pressure plate 16 to clamp and fix the fabric, ensuring that the fabric is under stable force during the cutting process, so that the fabric can be cut smoothly. At the same time, after the cutting is completed, the upper pressure plate 17 and the lower pressure plate 16 still remain in the clamping state to prevent the fabric from falling to the ground and causing soiling. The design of the connecting seat 14, which can move back and forth on the first guide rail 18, allows the same roll of fabric to be cut multiple times. After the first cutting is completed, the upper pressure plate 17 and the lower pressure plate 16 still fix the unwinding end of the mother roll. The connecting seat 14 drives one end of the fabric to move towards the tension roller 5, so that the workers can easily pull the fabric around the tension roller 5 and onto the take-up roller 6 again. The preparation work for rewinding can be completed without frequent movement, improving the convenience of processing.

[0026] The slitting mechanism includes a slitting seat 20, a slitting head 21, and a slitting blade 22. A second guide rail is horizontally arranged on the upper end of the upper pressure plate 17. The slitting seat 20 is set on the second guide rail and can move left and right on the second guide rail. The slitting head 21 is set on the front side of the slitting seat 20, and the slitting blade 22 is set on the slitting head 21. The lower end of the slitting blade 22 is lower than the lower end of the lower pressure plate 16. The slitting head 21 is equipped with a second drive motor to drive the slitting blade 22 to rotate. The cutting direction of the slitting blade 22 is perpendicular to the fabric conveying direction. After the second drive motor drives the slitting blade 22 to rotate, the fabric can be slitting by controlling the movement of the slitting seat 20 on the second guide rail. The cutting direction of the slitting blade 22 is perpendicular to the fabric conveying direction. Combined with its height design, it can effectively ensure neat cuts and accurate dimensions.

[0027] A control console 23 is provided on the outside of the winding frame 4. The first drive motor and the second drive motor are both connected to the control console 23. By setting the control console 23 to centrally control the first drive motor and the second drive motor, the operation is centralized and automated. The frame 1 is provided with a drive system for moving the drive connecting seat 14, the connecting plate 15 and the slitting seat 20. The drive system is connected to the control console 23. The drive system for moving the drive connecting seat 14, the connecting plate 15 and the slitting seat 20 are all connected to the control console 23, so that the operator can centrally control the operation of each component through the control console 23, which simplifies the operation process, improves work efficiency, and facilitates the monitoring and adjustment of the equipment. The drive system is a hydraulic system, a pneumatic system or an electric system. By adopting a hydraulic system, a pneumatic system or an electric system, the movement of the connecting seat 14, the connecting plate 15 and the slitting seat 20 is more stable and reliable.

[0028] Photoelectric sensors are installed on the opposite sides of the two connecting seats 14. The photoelectric sensors are connected to the control console 23. The photoelectric sensors can be used to detect the position of the fabric edge or whether the fabric is off-center. They are linked with the control console 23 to realize the initial automated monitoring function, which helps to prevent production failures and material waste. At the same time, they can monitor the amount of fabric transport, thereby achieving precise cutting.

[0029] A support plate 24 is horizontally arranged in the middle of the rear end of the frame 1. Mounting plates 25 are vertically arranged on both the left and right ends of the upper side of the support plate 24. The upper ends of the two mounting plates 25 are provided with semi-circular grooves. The left and right ends of the unwinding roller 2 are respectively set in the two semi-circular grooves. The arrangement of the support plate 24 and the mounting plates 25 makes the installation and disassembly of the unwinding roller 2 simple and quick, and facilitates the replacement of unwinding rollers 2 of different specifications, thereby improving the ease of use and work efficiency of the equipment.

[0030] The working principle of this invention is as follows: First, the fabric with slits is placed on the unwinding roller 2. Then, the unwinding roller 2 is installed in the semi-circular grooves on the two mounting plates 25. Then, one end of the fabric is passed around the guide roller 3, through the transmission channel between the upper pressure plate 17 and the lower pressure plate 16, then around the tension roller 5, and finally wound around the take-up roller 6. During the rewinding process of the fabric, as the diameter of the fabric is changed by the take-up roller 6, when the fabric tension is too high, the tension roller 5 can compress the spring 11 and move downward. When the tension is too low, the spring 11 pushes the tension roller 5 to move upward, thereby effectively balancing the tension of the fabric during the slitting and rewinding process and avoiding problems such as wrinkles and stretching deformation of the fabric due to uneven tension. After the required fabric size is rewound, the first drive motor stops and stops winding. The connecting plate 15 moves downward so that the upper pressure plate 17 and the lower pressure plate 16 clamp and fix the fabric. Then the second drive motor starts and drives the slitting blade 22 to rotate. The slitting seat 20 is moved so that the slitting blade 22 cuts the fabric. When the remaining fabric needs to be rewound after slitting, the upper pressure plate 17 and the lower pressure plate 16 hold the fabric in place, and the connecting seat 14 moves toward the tension roller 5, causing the fabric to move. After it moves into place, the connecting plate 15 moves upward to release the fabric from its fixation. The worker can then rewind the fabric around the tension roller 5 and onto the take-up roller 6. Then the connecting seat 14 is reset for the second rewinding process.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tension balance control device of a cloth slitting and rewinding machine, comprising a frame (1), characterized in that: The middle part of the rear end of the frame (1) is provided with a detachable unwinding roller (2), the upper part of the rear end of the frame (1) is provided with a guide roller (3), the front end of the frame (1) is provided with a winding frame (4), the upper part of the rear end of the winding frame (4) is provided with a tensioning roller (5), and the middle part of the front end of the frame (1) is provided with a detachable winding roller (6); The winding frame (4) is provided with a first driving motor for driving the winding roller (6) to rotate, the middle part of the upper end of the frame (1) is provided with a clamping mechanism and a slitting mechanism, the interiors of the left and right ends of the winding frame (4) are both provided with adjusting cavities, and the winding frame (4) is provided with a tension adjusting mechanism in the two adjusting cavities. The tension adjusting mechanism comprises a first adjusting rod (7), a second adjusting rod (8) and a connecting block (9), the first adjusting rod (7) and the second adjusting rod (8) are both vertically arranged, the first adjusting rod (7) is internally provided with a contraction cavity (10), the lower end of the second adjusting rod (8) extends into the contraction cavity (10) from the upper end of the first adjusting rod (7), the first adjusting rod (7) is provided with a spring (11) for driving the second adjusting rod (8) to extend upward in the contraction cavity (10), the connecting block (9) is arranged at the upper end of the second adjusting rod (8), a through hole (12) is formed in the center of the connecting block (9), and the side of the left and right ends of the winding frame (4) facing each other is vertically provided with a communication hole (13) in communication with the adjusting cavity, and the left and right ends of the tensioning roller (5) are connected with the connecting block (9) by penetrating through the two communication holes (13) and the through holes (12) in the two connecting blocks (9) respectively. The clamping mechanism comprises two connecting seats (14), two connecting plates (15), a lower pressing plate (16) and an upper pressing plate (17), the upper sides of the left and right ends of the frame (1) are both provided with first guide rails (18), the two connecting seats (14) are arranged on the two first guide rails (18) respectively, the two connecting seats (14) can move forward and backward on the first guide rails (18), the upper ends of the two connecting seats (14) are provided with connecting rods (19) respectively, the two connecting plates (15) are arranged on the connecting rods (19) of the two connecting seats (14) respectively, the two connecting plates (15) can move up and down on the connecting rods (19), the left and right ends of the lower pressing plate (16) are connected with the two connecting seats (14) respectively, the left and right ends of the upper pressing plate (17) are connected with the two connecting plates (15) respectively, and a transmission channel for the cloth to pass through is formed between the upper pressing plate (17) and the lower pressing plate (16).

2. The tension balance control device of a cloth splitting and rewinding machine according to claim 1, characterized in that: The slitting mechanism comprises a slitting seat (20), a slitting head (21) and a slitting blade (22), the upper pressing plate (17) is provided with a second guide rail at the upper end in the transverse direction, the slitting seat (20) is arranged on the second guide rail and can move left and right on the second guide rail, the slitting head (21) is arranged on the front side of the slitting seat (20), the slitting blade (22) is arranged on the slitting head (21), the lower end of the slitting blade (22) is lower than the lower end of the lower pressing plate (16), the slitting head (21) is provided with a second driving motor for driving the slitting blade (22) to rotate, and the cutting direction of the slitting blade (22) is perpendicular to the conveying direction of the cloth.

3. The tension balance control device of a cloth splitting and rewinding machine according to claim 2, characterized in that: The outer side of the winding frame (4) is provided with a control console (23), and the first driving motor and the second driving motor are connected with the control console (23).

4. The tension balance control device of a cloth splitting and rewinding machine according to claim 3, characterized in that: The rack (1) is provided with a driving connection seat (14), a connecting plate (15) and a driving system for moving the slitting seat (20), and the driving system is connected with the control console (23).

5. The tension balance control device of a cloth splitting and rewinding machine according to claim 4, characterized in that: The driving system is a hydraulic system, a pneumatic system or an electric power system.

6. The tension balance control device of a cloth splitting and rewinding machine according to claim 3, characterized in that: The opposite sides of the two connection seats (14) are provided with photoelectric sensors, and the photoelectric sensors are connected with the control console (23).

7. The tension balance control device of a cloth splitting and rewinding machine according to claim 1, characterized in that: The middle part of the rear end of the rack (1) is provided with a support plate (24) in the transverse direction, the left and right ends of the upper side of the support plate (24) are vertically provided with mounting plates (25), semicircular grooves are formed in the upper ends of the two mounting plates (25), and the left and right ends of the unwinding roller (2) are arranged in the two semicircular grooves respectively.

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