Ribbon loom active let-off device capable of dynamically adjusting tension

Abstract

The utility model relates to the related technical field of ribbon looms, in particular to an active warp let-off device of a ribbon loom capable of dynamically adjusting tension, which comprises a frame and a mounting plate detachably connected with the frame. The connecting shaft is rotationally mounted on the mounting plate and is connected with the yarn roller through a gear set; the driving end of a speed reduction driving piece installed on the installation plate is connected with the connecting shaft through a chain wheel assembly. A weighing mechanism is further mounted on the mounting plate; a control system used for receiving a pressure signal sent by the weighing mechanism and controlling the driving speed of the speed reduction driving piece according to the pressure signal is further arranged on the mounting plate, and the driving speed of the speed reduction driving piece is controlled when the weighing mechanism detects that the weight of the yarn exceeds or is lower than a preset value of the system. Under transmission of the chain wheel assembly, tension adjustment of the yarn is buffered, force is prevented from directly acting on the yarn roller, and automatic adjustment of the tension degree of the yarn is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of ribbon weaving machines, specifically an active warp feeding device for ribbon weaving machines with dynamic tension adjustment. Background Technology

[0002] A ribbon loom is a mechanical device used to weave ribbons of various widths and types. Its main function is to weave yarn into long, narrow tubular or ribbon-like fabrics. Depending on the classification method, ribbon looms can be divided into several types, including shuttle looms and braided ribbon looms.

[0003] Tension testing is an indispensable part of webbing production. By monitoring and controlling the tension of the webbing in real time, the uniformity and stability of the webbing can be ensured, avoiding webbing breakage, deformation, or quality problems caused by excessive or insufficient tension.

[0004] Patent document CN221566437U discloses an active warp feeding device for a ribbon weaving machine. The tension of the yarn is detected by a tension detection mechanism and actively adjusted by controlling the rotation speed of the drive wheel with a rotation drive source, thereby achieving active control of the yarn tension. However, the drive wheel and the driven wheel are connected by a belt drive, which causes the transmission force to act directly on the yarn roller. Moreover, the belt drive will loosen over time, resulting in the inability to accurately adjust the tension and causing a decline in the quality of ribbon production. Utility Model Content

[0005] The purpose of this invention is to provide an active warp feeding device for a weaving machine with dynamic tension adjustment, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An active warp feed device for a ribbon weaving machine with dynamic tension adjustment includes a frame and a mounting plate detachably connected to the frame. A yarn roller is rotatably mounted on the frame. The device also includes:

[0008] Rotate the connecting shaft mounted on the mounting plate; the connecting shaft is connected to the yarn roller via a gear set.

[0009] A speed reduction drive unit is mounted on the mounting plate, and the drive end of the speed reduction drive unit is connected to the connecting shaft via a sprocket assembly;

[0010] A weighing mechanism is also installed on the mounting plate, and the yarn on the yarn roller passes around the weighing mechanism and exerts pressure on the weighing mechanism;

[0011] The mounting plate is also equipped with a control system for receiving pressure signals from the weighing mechanism and controlling the driving speed of the deceleration drive component according to the pressure signals.

[0012] The tension-dynamically adjustable active warp feeding device for a ribbon machine, as described above, includes a speed reduction drive component comprising a motor fixedly mounted on the mounting plate, a speed reducer connected to the output shaft of the motor, and the output end of the speed reducer being rotatably mounted on the mounting plate.

[0013] The tension-dynamically adjustable active warp feed device for a ribbon loom, as described above, includes a gear set comprising a disc head rotatably mounted on the frame, the disc head passing through the yarn roller and fitted with a disc head gear, the disc head gear meshing with a transmission wheel mounted on the connecting shaft.

[0014] The tension-dynamically adjustable active warp feed device for a ribbon loom, as described above, includes a sprocket assembly comprising a drive wheel sleeved on the drive shaft, the drive wheel being connected to a driven wheel disposed on the connecting shaft via a chain.

[0015] The tension-dynamically adjustable active warp feeding device for a weaving machine, as described above, has a limit roller at the upper end of the weighing mechanism, allowing the yarn to bypass the limit roller during conveying.

[0016] The tension-dynamically adjustable active warp feed device for a ribbon weaving machine as described above: the weighing mechanism includes a receiving plate fixedly mounted on the mounting plate, and a pressure sensor is provided on the receiving plate, and a guide roller for the yarn to pass through is provided on the receiving plate.

[0017] The tension-dynamically adjustable active warp feeding device for a ribbon weaving machine, as described above, includes a controller on the mounting plate. The controller integrates the aforementioned control system and also includes two buttons for controlling the rotation direction of the motor.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] After the yarn passes through the weighing mechanism, the weighing mechanism weighs the yarn in real time during the conveying process and compares it with the weight preset by the system. The pressure signal is fed back to the control system, which controls the driving speed of the reduction drive component. Under the transmission of the sprocket assembly, the speed is applied to the yarn roller. During the transmission process, the transmission force of the gear set is buffered to avoid the force acting directly on the yarn roller. This allows the yarn tension to be quickly and automatically adjusted while ensuring that the yarn is always kept within the required tension range, thereby further improving the working efficiency of the warp feeding device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the active warp feeding device for a ribbon weaving machine with dynamic tension adjustment.

[0021] Figure 2This is a schematic diagram of the active warp feed device of a weaving machine with dynamic tension adjustment from another angle.

[0022] Figure 3 This is a schematic diagram of the deceleration drive and buffer components in the active warp feeding device of a weaving machine with dynamic tension adjustment.

[0023] Figure 4 This is a schematic diagram of the structure of the yarn roller, limit roller, and guide roller in the active warp feed device of a weaving machine with dynamic tension adjustment.

[0024] Figure 5 This is a schematic diagram of the weighing mechanism in the active warp feed device of a weaving machine with dynamic tension adjustment.

[0025] In the diagram: 1. Frame; 2. Mounting plate; 3. Motor; 4. Drive shaft; 5. Drive wheel; 6. Chain; 7. Connecting shaft; 8. Driven wheel; 9. Transmission wheel; 10. Pan head gear; 11. Pan head; 12. Yarn roller; 13. Weighing mechanism; 1301. Receiving plate; 1302. Wire guide roller; 14. Limit roller; 15. Controller; 16. Button. Detailed Implementation

[0026] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0029] Please see Figures 1-5 In one embodiment of the present invention, a tension-dynamically adjustable active warp feeding device for a ribbon weaving machine includes a frame 1 and a mounting plate 2 detachably connected to the frame 1. A yarn roller 12 is rotatably mounted on the frame 1. In one embodiment, the mounting plate 2 is connected to the frame 1 by bolt fixing.

[0030] It also includes: a connecting shaft 7 rotatably mounted on the mounting plate 2, the connecting shaft 7 being connected to the yarn roller 12 via a gear set;

[0031] A speed reduction drive unit is installed on the mounting plate 2, and the drive end of the speed reduction drive unit is connected to the connecting shaft 7 through a sprocket assembly;

[0032] A weighing mechanism 13 is also installed on the mounting plate 2. The yarn on the yarn roller 12 passes around the weighing mechanism 13 and exerts pressure on the weighing mechanism 13.

[0033] The mounting plate 2 is also equipped with a control system for receiving pressure signals from the weighing mechanism 13 and controlling the driving speed of the deceleration drive component according to the pressure signals.

[0034] In this embodiment, after the yarn passes around the weighing mechanism 13, the weighing mechanism 13 weighs the yarn in real time during the conveying process and compares it with the weight preset by the system. The pressure signal is fed back to the control system, which controls the driving speed of the deceleration drive component. Under the transmission of the sprocket assembly, the drive force is applied to the yarn roller 12. During the transmission process, the transmission force of the gear set is buffered to avoid the force acting directly on the yarn roller 12. This enables the yarn tension to be quickly and automatically adjusted while ensuring that the yarn is always kept within the required tension range, thereby further improving the working efficiency of the warp feeding device.

[0035] For further solutions to this utility model, please refer to [link / reference]. Figure 3 The speed reduction drive includes a motor 3 fixedly mounted on the mounting plate 2, a speed reducer connected to the output shaft of the motor 3, and the output end of the speed reducer connected to a drive shaft 4 rotatably mounted on the mounting plate 2.

[0036] When motor 3 receives a signal from the control system, it determines whether the weight of the yarn as it passes over the weighing mechanism 13 is less than or greater than a system preset value. If the weight is less than the preset value, the yarn tension is too low. The control system sends a signal to motor 3, causing it to slow down. Under the transmission of the sprocket assembly, this slows down the gear set, reducing the rotational speed of the yarn roller 12. This ensures that the weaving machine maintains constant tension while allowing the yarn to return to the required tension range. Subsequently, motor 3 is restarted to control the yarn roller 12 to return to its initial constant speed. Conversely, when the weighing mechanism 13 detects that the yarn weight is greater than the preset value, the yarn tension is too high. The control system sends a signal to motor 3, increasing its driving speed and thus the rotational speed of the yarn roller 12. This achieves active control of the yarn tension, maintaining the yarn under relatively stable tension. Furthermore, the automatic tension adjustment buffers the yarn tension, ensuring the effective operation of the warp feeding device.

[0037] For further solutions to this utility model, please refer to [link / reference]. Figure 3The gear set includes a disc head 11 rotatably mounted on the frame 1. The disc head 11 passes through the yarn roller 12 and is fitted with a disc head gear 10. The disc head gear 10 meshes with a transmission wheel 9 mounted on the connecting shaft 7.

[0038] The sprocket assembly includes a drive wheel 5 sleeved on the drive shaft 4, and the drive wheel 5 is connected to a driven wheel 8 disposed on the connecting shaft 7 via a chain 6.

[0039] When the drive shaft 4 rotates, power is transmitted through the engagement of the chain 6 with the drive wheel 5 and the driven wheel 8 respectively. The chain 6 has a certain elasticity and can absorb vibration and impact. When the drive shaft 4 rotates, the driven wheel 8 can receive power smoothly through the buffering effect of the chain 6, avoiding the direct impact of the force on the pan head 11. When the driven wheel 8 rotates, it can drive the connecting shaft 7 to rotate synchronously. Under the transmission of the transmission wheel 9 and the pan head gear 10, the rotation of the drive shaft 4 can be indirectly transmitted to the pan head 11.

[0040] Preferably, a limiting roller 14 is provided on the mounting plate 2 and at the upper end of the weighing mechanism 13. The yarn can bypass the limiting roller 14 during conveying. The setting of the limiting roller 14 plays a guiding role in the conveying of the yarn, and by limiting the range of motion of the yarn, it ensures that the yarn will not deviate from the predetermined path during the conveying process, thereby improving the stability and safety of the equipment operation.

[0041] For further solutions to this utility model, please refer to [link / reference]. Figure 5 The weighing mechanism 13 includes a receiving plate 1301 fixedly installed on the mounting plate 2, and a pressure sensor is provided on the receiving plate 1301, and a guide roller 1302 for the yarn to pass through is provided on the receiving plate 1301.

[0042] The weighing mechanism 13 weighs the weight of the yarn passing through it. If the weight of the yarn exceeds or falls below the system preset value, it sends a pressure signal to the controller 15. The weighing method of the weighing mechanism 13 can be referred to the prior art with announcement number CN221566437U.

[0043] Please see Figure 1 The mounting plate 2 is also provided with a controller 15, which integrates the control system and is also provided with a button 16 for controlling the rotation direction of the motor 3.

[0044] It should be noted that: of the two buttons 16, one controls the forward rotation of motor 3 and the other controls the reverse rotation of motor 3. When the machine is running, neither button 16 is activated. When it is necessary to replace the pan head 11 or when the pan head gear 10 is stuck, the pan head gear 10 will not rotate. It can be adjusted by manually pressing the two buttons 16 to make the pan head gear 10 rotate again, so as to achieve fine adjustment of the pan head gear 10. The specific adjustment method is existing technology and will not be explained further in this utility model.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] 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 warp dynamic tension regulating device of a warp knitting machine, comprising a frame (1) and a mounting plate (2) detachably connected to the frame (1), a yarn roller (12) being rotatably arranged on the frame (1), characterized in that, Also includes: Rotate the connecting shaft (7) mounted on the mounting plate (2), the connecting shaft (7) is connected to the yarn roller (12) through a gear set; A speed reduction drive is mounted on the mounting plate (2), and the drive end of the speed reduction drive is connected to the connecting shaft (7) via a sprocket assembly; A weighing mechanism (13) is also installed on the mounting plate (2), and the yarn on the yarn roller (12) passes around the weighing mechanism (13) and exerts pressure on the weighing mechanism (13); The mounting plate (2) is also provided with a control system for receiving the pressure signal emitted by the weighing mechanism (13) and controlling the driving speed of the deceleration drive according to the pressure signal.

2. A power warp let of a warp let machine with dynamic tension adjustment according to claim 1, characterized in that The speed reduction drive includes a motor (3) fixedly mounted on the mounting plate (2), a speed reducer is connected to the output shaft of the motor (3), and the output end of the speed reducer is connected to a drive shaft (4) rotatably mounted on the mounting plate (2).

3. The active warp feeding device for a weaving machine with dynamic tension adjustment according to claim 2, characterized in that, The gear set includes a disc head (11) rotatably mounted on the frame (1), the disc head (11) passing through the yarn roller (12) and fitted with a disc head gear (10), the disc head gear (10) meshing with a transmission wheel (9) mounted on the connecting shaft (7).

4. The active warp feeding device for a weaving machine with dynamic tension adjustment according to claim 3, characterized in that, The sprocket assembly includes a drive wheel (5) sleeved on the drive shaft (4), and the drive wheel (5) is connected to a driven wheel (8) disposed on the connecting shaft (7) via a chain (6).

5. The active warp feeding device for a weaving machine with dynamic tension adjustment according to claim 1, characterized in that, The upper end of the weighing mechanism (13) is provided with a limiting roller (14), and the yarn can bypass the limiting roller (14) during conveying.

6. The active warp feed device for a weaving machine with dynamic tension adjustment according to claim 1, characterized in that, The weighing mechanism (13) includes a receiving plate (1301) fixedly installed on the mounting plate (2), and a pressure sensor is provided on the receiving plate (1301), and a guide roller (1302) for the yarn to pass through is provided on the receiving plate (1301).

7. The active warp feeding device for a weaving machine with dynamic tension adjustment according to claim 3, characterized in that, The mounting plate (2) is also provided with a controller (15), which integrates the control system and is also provided with two buttons (16) for controlling the rotation direction of the motor (3).

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