Let-off structure for warp knitting machine

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a warp feeding structure for a warp knitting machine, which comprises a fixed-length warp feeding device, a linear speed sensor and a controller. The fixed-length let-off device comprises a driving motor, a speed reducer, a driving chain wheel, a driven chain wheel, a chain, a first fixed-length let-off roller, a second fixed-length let-off roller, a driving fixed-length let-off roller gear and a driven fixed-length let-off roller gear, and the linear speed sensor is installed on the outer surface of the end of the first fixed-length let-off roller. According to the warp let-off structure for the warp knitting machine, the electronic control technology and the mechanical design are introduced, accurate control over the tension and the speed of yarn in the warp let-off process is achieved, fixed-length warp let-off is guaranteed, the warp let-off efficiency is improved, and the warp let-off structure for the warp knitting machine is suitable for large-scale popularization and application. Even if the yarn rolling diameter changes, the stable warp feeding speed can be maintained by automatically adjusting the rotating speed of the motor, and it is guaranteed that the yarn tension is constant.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting machines, and particularly to a warp feeding structure for a warp knitting machine. Background Technique

[0002] The fiberglass mesh warp knitting machine is a textile machine specifically used for producing fiberglass mesh, with specific structural and functional characteristics to meet the production requirements of fiberglass mesh. This machine is usually equipped with special knitting mechanisms, comb bar lateral movement mechanisms, warp feeding mechanisms, pulling and winding mechanisms, and transmission mechanisms to ensure an efficient and stable production process.

[0003] For the warp feeding mechanism of the warp knitting machine, the fiberglass yarn is continuously rotated and sent out. As a result, the diameter of the fiberglass yarn wound on the entire warp feeding roller will gradually decrease. The angular velocity of the rotation of the warp feeding roller remains unchanged. However, as the wound diameter of the fiberglass yarn decreases, the output linear velocity of the fiberglass yarn will decrease, and thus the originally tensioned fiberglass yarn may become loose, affecting the normal use of the warp knitting machine. Content of the Utility Model

[0004] The purpose of the utility model is to provide a warp feeding structure for a warp knitting machine to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A warp feeding structure for a warp knitting machine includes a constant-length warp feeding device, a linear velocity sensor, and a controller. The constant-length warp feeding device includes a driving motor, a reducer, a driving sprocket, a driven sprocket, a chain, a first constant-length warp feeding roller, a second constant-length warp feeding roller, a driving constant-length warp feeding roller gear, and a driven constant-length warp feeding roller gear. The linear velocity sensor is installed on the outer surface of the end of the first constant-length warp feeding roller, and the linear velocity sensor rotates at the same linear velocity as the first constant-length warp feeding roller. The linear velocity sensor is electrically connected to the controller through a wire.

[0007] As a preferred solution of the utility model, the first constant-length warp feeding roller is parallel to one side of the second constant-length warp feeding roller. One end of the shaft rod of the first constant-length warp feeding roller is fixedly connected to the driven sprocket. The driving constant-length warp feeding roller gear is fixedly sleeved on the outer circumferential wall of the first constant-length warp feeding roller near the driven sprocket. The driven constant-length warp feeding roller gear is fixedly sleeved on the outer circumferential wall of the second constant-length warp feeding roller near one end of the driving constant-length warp feeding roller gear. The driven constant-length warp feeding roller gear is meshed and connected with the driving constant-length warp feeding roller gear.

[0008] As a preferred solution of the present utility model, the driving sprocket is fixedly sleeved on the outer circumferential wall of the output end of the speed reducer, and the driving sprocket is connected to the driven sprocket through the chain.

[0009] As a preferred solution of the present utility model, the output end of the driving motor is connected to the input end of the speed reducer through a coupling.

[0010] As a preferred solution of the present utility model, the driving motor is electrically connected to the controller through a coupling.

[0011] As a preferred solution of the present utility model, the glass fiber yarn feeding for the warp knitting machine first passes through the first constant-length yarn feeding roller and then passes through the second constant-length yarn feeding roller.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Aiming at the problems raised in the background art, the present application adopts a yarn feeding structure for a warp knitting machine. By introducing electronic control technology and mechanical design, it realizes the precise control of yarn tension and speed during the yarn feeding process, ensures constant-length yarn feeding, not only improves the quality of the fabric, but also enhances the production efficiency, reduces the operation complexity, improves the product competitiveness, and meets the market demand;

[0014] The driving constant-length yarn feeding roller gear and the driven constant-length yarn feeding roller gear are respectively fixed on the two yarn feeding rollers, and the synchronous rotation of the two is ensured through gear meshing. The rotation of the driving constant-length yarn feeding roller gear drives the rotation of the first constant-length yarn feeding roller. Since the driven constant-length yarn feeding roller gear is connected to the second constant-length yarn feeding roller, and the driving constant-length yarn feeding roller gear and the driven constant-length yarn feeding roller gear are meshed and connected, when the driving constant-length yarn feeding roller gear rotates, it drives the second constant-length yarn feeding roller to perform synchronous constant-length rotation, and finally feeds into the knitting area. The driving constant-length yarn feeding roller gear and the driven constant-length yarn feeding roller gear are connected to the two constant-length yarn feeding rollers, synchronizing the rotational speeds of the two rollers, ensuring the consistency of yarn tension during the yarn feeding process, and avoiding fabric quality problems caused by uneven tension. The driving sprocket is fixed at the output end of the speed reducer and is connected to the driven sprocket through a chain to achieve power transmission. The driven sprocket is connected to the first constant-length yarn feeding roller and drives the rotation of the first constant-length yarn feeding roller through the chain. The speed reducer is connected to the driving motor and the transmission system. The speed reducer converts the high-speed rotation generated by the motor into a low-speed rotation suitable for yarn feeding, and at the same time increases the torque to ensure the smoothness of the yarn feeding process. It receives the speed data from the linear speed sensor and adjusts the rotational speed of the driving motor according to these data. This closed-loop control system can ensure the constancy of the yarn feeding speed. Even when the yarn coil diameter changes, it can maintain a stable yarn feeding linear speed by automatically adjusting the motor rotational speed to ensure a constant yarn tension. Description of the Drawings

[0015] Figure 1 This is a three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the connection between the overall chain and the sprocket of the present utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the first constant-length beam roller and the second constant-length beam roller of the present utility model;

[0018] Figure 4 This is a connection block diagram of the overall equipment of the present utility model.

[0019] In the figure: 1. Driving motor; 2. Reducer; 31. Driving sprocket; 32. Driven sprocket; 4. Chain; 5. First constant-length beam roller; 6. Second constant-length beam roller; 71. Driving constant-length beam roller gear; 72. Driven constant-length beam roller gear. Specific embodiments

[0020] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Embodiment

[0021] In each device of this application document, conventional models in the prior art are adopted. The control method is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field and will not be elaborated in detail here.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a beam feeding structure for a warp knitting machine, including a constant-length beam feeding device, a linear velocity sensor, and a controller. The constant-length beam feeding device includes a driving motor 1, a reducer 2, a driving sprocket 31, a driven sprocket 32, a chain 4, a first constant-length beam roller 5, a second constant-length beam roller 6, a driving constant-length beam roller gear 71, and a driven constant-length beam roller gear 72. The linear velocity sensor is installed on the outer surface of the end of the first constant-length beam roller 5, and the linear velocity sensor rotates at the same linear velocity as the first constant-length beam roller 5. The linear velocity sensor is electrically connected to the controller through a wire; the output end of the driving motor 1 is connected to the input end of the reducer 2 through a coupling; the driving motor 1 is electrically connected to the controller through a coupling.

[0023] It should be noted that, in this embodiment, the driving motor 1 serves as the power source of the entire beam feeding mechanism. The driving motor 1 is responsible for providing power to ensure the stability and efficiency of the beam feeding mechanism; the reducer 2 connects the driving motor 1 and the transmission system. The reducer 2 converts the high-speed rotation generated by the motor into a low-speed rotation suitable for beam feeding, and at the same time increases the torque to ensure the smoothness of the beam feeding process;

[0024] Furthermore, a linear velocity sensor is installed on the outer surface of the end of the first fixed-length warp beam roller 5. The linear velocity sensor rotates at the same linear velocity as the roller, monitors the warp feeding speed of the yarn in real time, and feeds the data back to the controller through a wire. The controller receives the speed data from the linear velocity sensor and adjusts the rotational speed of the drive motor 1 according to this data. This closed-loop control system can ensure the constancy of the warp feeding speed. Even when the yarn diameter changes, it can maintain a stable warp feeding linear velocity by automatically adjusting the motor speed, ensuring a constant yarn tension.

[0025] Please refer to Figure 2 、 3 and 4. The first fixed-length warp beam roller 5 is parallel and located on one side of the second fixed-length warp beam roller 6. One end of the shaft rod of the first fixed-length warp beam roller 5 is fixedly connected to the driven sprocket 32. The driving fixed-length warp beam roller gear 71 is fixedly sleeved on the outer circumferential wall of the first fixed-length warp beam roller 5 near the driven sprocket 32. The driven fixed-length warp beam roller gear 72 is fixedly sleeved on the outer circumferential wall of the second fixed-length warp beam roller 6 near one end of the driving fixed-length warp beam roller gear 71. The driven fixed-length warp beam roller gear 72 is meshed and connected with the driving fixed-length warp beam roller gear 71; the fiberglass yarn for warp knitting is fed through the first fixed-length warp beam roller 5 and then through the second fixed-length warp beam roller 6; the driving sprocket 31 is fixedly sleeved on the outer circumferential wall of the output end of the speed reducer 2. The driving sprocket 31 is connected to the driven sprocket 32 through the chain 4.

[0026] It should be noted that in this embodiment, the sprockets 3 and the chain 4 constitute the transmission system of the warp feeding mechanism, which is responsible for transmitting the power output by the speed reducer 2 to the fixed-length warp beam roller, driving the roller to rotate, and realizing the conveying of the yarn;

[0027] Furthermore, the first fixed-length warp beam roller 5 and the second fixed-length warp beam roller 6 are in direct contact with the yarn and send out the yarn by rotation. The double-roller design helps to better control the yarn tension and the warp feeding speed, ensuring the continuity and stability of the yarn supply during the production process;

[0028] Further, the driving constant-length warp beam roller gear 71 and the driven constant-length warp beam roller gear 72 are respectively fixed on two warp beam rollers, and their synchronous rotation is ensured through gear meshing. The rotation of the driving constant-length warp beam roller gear 71 drives the first constant-length warp beam roller 5 to rotate. Since the driven constant-length warp beam roller gear 72 is connected to the second constant-length warp beam roller 6, and the driving constant-length warp beam roller gear 71 and the driven constant-length warp beam roller gear 72 are meshed and connected, when the driving constant-length warp beam roller gear 71 rotates, it drives the second constant-length warp beam roller 6 to perform synchronous constant-length rotation and finally feed into the knitting area. The driving constant-length warp beam roller gear 71 and the driven constant-length warp beam roller gear 72 are connected to the two constant-length warp beam rollers, synchronizing the rotational speeds of the two rollers, ensuring the consistency of the yarn tension during the warp feeding process, and avoiding fabric quality problems caused by uneven tension;

[0029] Further, the driving sprocket 31 is fixed at the output end of the speed reducer and is connected to the driven sprocket 32 through the chain 4 to achieve power transmission. The driven sprocket 32 is connected to the first constant-length warp beam roller 5, and the first constant-length warp beam roller 5 is driven to rotate through the chain 4. The speed reducer 2 is connected to the driving motor 1 and the transmission system. The speed reducer 2 converts the high-speed rotation generated by the motor into a low-speed rotation suitable for warp feeding, while increasing the torque to ensure the smoothness of the warp feeding process, receives the speed data from the linear speed sensor, and adjusts the rotational speed of the driving motor according to these data. This closed-loop control system can ensure the constancy of the warp feeding speed. Even when the yarn coil diameter changes, the stable warp feeding linear speed can be maintained by automatically adjusting the motor rotational speed, ensuring a constant yarn tension;

[0030] This warp feeding structure for the warp knitting machine realizes the precise control of the yarn tension and speed during the warp feeding process by introducing advanced electronic control technology and precision mechanical design. This not only improves the fabric quality but also enhances the production efficiency and reduces the operation complexity. For the modern textile industry, this design is one of the important technologies to improve product competitiveness and meet market demands.

[0031] The working process of the present utility model:

[0032] In use, start the controller, the driving motor 1 drives the reducer 2 to work. The reducer 2 converts the high-speed rotation generated by the motor into a low-speed rotation suitable for warp feeding, and at the same time increases the torque to ensure the smoothness of the warp feeding process. It receives the speed data from the linear speed sensor and adjusts the rotational speed of the driving motor according to these data. The driving sprocket 31 is fixedly sleeved on the outer circumferential wall of the output end of the reducer 2. The driving sprocket 31 is connected to the driven sprocket 32 by a chain 4. The driven sprocket 32 is connected to the first constant-length warp-feeding roller 5. The chain 4 drives the first constant-length warp-feeding roller 5 to rotate. The driving constant-length warp-feeding roller gear 71 and the driven constant-length warp-feeding roller gear 72 are respectively fixed on the two warp-feeding rollers, and the two are ensured to rotate synchronously through gear meshing. The rotation of the driving constant-length warp-feeding roller gear 71 drives the first constant-length warp-feeding roller 5 to rotate. Since the driven constant-length warp-feeding roller gear 72 is connected to the second constant-length warp-feeding roller 6, and the driving constant-length warp-feeding roller gear 71 and the driven constant-length warp-feeding roller gear 72 are meshed and connected, when the driving constant-length warp-feeding roller gear 71 rotates, it drives the second constant-length warp-feeding roller 6 to perform synchronous constant-length rotation, and finally feeds it into the knitting area. The driving constant-length warp-feeding roller gear 71 and the driven constant-length warp-feeding roller gear 72 are connected to the two constant-length warp-feeding rollers, synchronizing the rotational speeds of the two rollers, ensuring the consistency of the yarn tension during the warp feeding process, and avoiding fabric quality problems caused by uneven tension. This closed-loop control system can ensure the constancy of the warp feeding speed. Even when the yarn coil diameter changes, it can maintain a stable warp feeding linear speed by automatically adjusting the motor rotational speed, ensuring a constant yarn tension.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A warp feeding structure for a warp knitting machine, comprising a constant-length warp feeding device, a linear velocity sensor and a controller, characterized in that: The fixed-length warp feeding device includes a driving motor (1), a speed reducer (2), a driving sprocket (31), a driven sprocket (32), a chain (4), a first fixed-length warp feeding roller (5), a second fixed-length warp feeding roller (6), a driving fixed-length warp feeding roller gear (71) and a driven fixed-length warp feeding roller gear (72). The linear speed sensor is installed on the outer surface of the end of the first fixed-length warp feeding roller (5). The linear speed sensor rotates at the same linear speed as the first fixed-length warp feeding roller (5). The linear speed sensor is electrically connected to the controller through a wire.

2. The warp let-off structure for a warp knitting machine according to claim 1, characterized in that: The first fixed-length warp feeding roller (5) is parallel to one side of the second fixed-length warp feeding roller (6). One end of the shaft of the first fixed-length warp feeding roller (5) is fixedly connected to the driven sprocket (32). The driving fixed-length warp feeding roller gear (71) is fixedly sleeved on the outer circumferential wall of the first fixed-length warp feeding roller (5) near the driven sprocket (32). The driven fixed-length warp feeding roller gear (72) is fixedly sleeved on the outer circumferential wall of the second fixed-length warp feeding roller (6) near one end of the driving fixed-length warp feeding roller gear (71). The driven fixed-length warp feeding roller gear (72) is meshed and connected with the driving fixed-length warp feeding roller gear (71).

3. The warp let-off structure for a warp knitting machine according to claim 1, characterized in that: The driving sprocket (31) is fixedly sleeved on the outer circumferential wall of the output end of the speed reducer (2). The driving sprocket (31) is connected to the driven sprocket (32) through the chain (4).

4. The warp let-off structure for a warp knitting machine according to claim 1, characterized in that: The output end of the driving motor (1) is connected to the input end of the speed reducer (2) through a coupling.

5. The warp let-off structure for a warp knitting machine according to claim 1, characterized in that: The driving motor (1) is electrically connected to the controller through a coupling.

6. The warp let-off structure for a warp knitting machine according to claim 1, characterized in that: The glass fiber yarn for warp knitting is fed through the first fixed-length warp feeding roller (5) and then through the second fixed-length warp feeding roller (6).

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