A winding device capable of automatically adjusting tension during high-speed pay-off

Abstract

The application discloses a kind of high-speed wire unwinding time automatic tension adjusting winding device, including frame, wire unwinding mechanism, driving mechanism, tensioning mechanism, it is characterized by: the tensioning mechanism is configured with pneumatic cylinder pneumatic loading component, for replacing mechanical counterweight to realize tension automatic loading;Device is equipped with tension sensor and encoder, and the signal linkage of both forms tension-speed closed-loop regulation system;The pneumatic cylinder is according to the real-time signal of tension sensor and encoder, self-adapting tensioning force, keeps high-speed wire unwinding tension constant.The application, using pneumatic cylinder pneumatic automatic loading structure, completely replaces traditional weight, weight and other mechanical manual loading mode, without manual adjustment counterweight, significantly reduce operating intensity, improve equipment automation level.

Description

Technical Field

[0001] This invention relates to the field of winding device technology, specifically a winding device that automatically adjusts tension during high-speed unwinding. Background Technology

[0002] Rubber transmission belts are core components of industrial transmission systems, and their molding quality directly affects transmission accuracy, operational stability, and service life. In the winding process of rubber transmission belt molding machines, high-speed unwinding and stable tension control are key technological steps that determine winding uniformity and product yield.

[0003] Currently, traditional wire feeding devices generally use passive loading methods such as weights, hammers, or mechanical springs to achieve tension adjustment, which has many technical defects: tension adjustment relies on manually adding or removing weights or manually adjusting the spring preload, which is cumbersome to operate, has low adjustment accuracy, and is difficult to match high-speed wire feeding conditions; passive tension structures have a lag in response, and are prone to problems such as excessive tension fluctuations and uneven tension during high-speed operation, resulting in loose wire, skipped wires, overlapping wires, or even broken wires, which seriously affects the winding quality of the transmission belt; mechanical counterweight methods have low automation and cannot achieve real-time closed-loop control of tension, making it difficult to meet the process requirements of continuous and high-speed production lines; traditional devices lack precise tension detection and speed synchronization feedback mechanisms, and the wire feeding speed and tension cannot be controlled in tandem, which can easily cause uneven wire density inside the transmission belt, reducing product life and transmission performance.

[0004] In summary, existing wire feeding devices are no longer suitable for the high-speed, stable, and automated winding production requirements of rubber transmission belt molding machines. Therefore, there is an urgent need to develop a winding device that can feed wire at high speed, automatically adjust tension, and eliminate the need for manual loading, in order to solve the problems of large tension fluctuations, inconvenient adjustment, and low automation levels of traditional technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a winding device that automatically adjusts tension during high-speed winding, so as to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a winding device for automatically adjusting tension during high-speed wire feeding, comprising a frame, two wire feeding mechanisms mounted on the lower part of the frame, and a wire blocking assembly mounted on one side of the frame near the wire feeding mechanism; a guide post assembly, a single wire guide wheel, a secondary drive wheel, and a drive mechanism mounted on the frame above the two wire blocking assemblies; two tensioning mechanisms mounted on the upper part of the frame, a tensioning wheel assembly mounted on one side of the frame near the tensioning mechanism, and a single-wheel guide wheel and a tension sensor mounted on each of the two tensioning wheel assemblies; and an encoder mounted inside the frame on one side of the tensioning mechanism.

[0007] Preferably, a verification component is installed above the frame. The verification component includes a verification support rod and a single guide wheel. One end of the verification support rod is mounted on the frame via a pin, and the other end of the support rod is rotatably mounted with a single guide wheel.

[0008] Preferably, the wire feeding mechanism includes a first fixed base, a reel, and a first motor. The first fixed base is fixed to the frame, the first motor is mounted on the first fixed base, and the first motor drives the reel to rotate.

[0009] Preferably, the reel is equipped with a positioning pin for positioning the thread reel.

[0010] Preferably, the driving mechanism includes a second motor, a second fixed base, a connecting base, a drive wheel, and a transmission shaft. The second fixed base is fixed to the frame, the second motor is mounted on the second fixed base, the second motor drives the transmission shaft to rotate, and the transmission shaft is equipped with a drive wheel.

[0011] Preferably, the tensioning mechanism includes a tensioning link, one end of which is rotatably mounted on the frame via a connecting pin, a synchronous pulley is rotatably mounted on one end of the tensioning link at the connecting pin, and a multi-thread pulley is rotatably mounted on the other end of the tensioning link.

[0012] Preferably, the system also includes a cylinder, one end of which is rotatably mounted on the frame via a pin, a connecting shaft is installed in the middle of the tensioning rod, and the other end of the cylinder is rotatably connected to the connecting shaft.

[0013] Preferably, the frame has an arc-shaped hole through which the shaft of the multi-threaded wheel passes, and the frame is equipped with limit blocks at both ends of the arc-shaped hole to buffer and limit the tensioning connecting rod. The limit blocks are rubber blocks.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The tension sensor and encoder form a high-speed closed-loop control system with fast response and high control precision. It can effectively suppress tension fluctuations during high-speed unwinding, ensuring constant and uniform wire tension, and improving the winding quality and product stability of the rubber transmission belt. The system adopts a pneumatic automatic loading structure, completely replacing traditional manual loading methods such as weights and hammers. It eliminates the need for manual adjustment of the counterweight, significantly reducing operational intensity and improving the automation level of the equipment.

[0016] 2. The dual-path wire feeding mechanism operates synchronously, adapting to the parallel winding of two wires, resulting in higher production efficiency and meeting the needs of continuous and high-speed production.

[0017] 3. The tensioning mechanism is equipped with an arc-shaped hole guide and a rubber buffer limit structure, which ensures smooth operation, low impact, low wear, high equipment reliability, long service life, and easy maintenance.

[0018] 4. The overall structure is compact and the guide path is regular, which effectively avoids skipped wires, messy wires, and broken wires, and is suitable for the stringent winding process requirements of rubber transmission belt forming machines. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure within the framework of this invention;

[0022] Figure 3 This is the present invention. Figure 2 A structural diagram from another perspective;

[0023] Figure 4 This is a schematic diagram of the wire feeding mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the drive mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the tensioning mechanism of the present invention.

[0026] In the diagram: 1. Frame; 2. Arc-shaped hole; 3. Wire feeding mechanism; 4. Wire blocking assembly; 5. Wire guide post assembly; 6. Single wire guide wheel; 7. Secondary drive wheel; 8. Drive mechanism; 9. Tensioning wheel assembly; 10. Tensioning mechanism; 11. Verification assembly; 12. Single-wheel wire guide wheel; 13. Tension sensor; 14. Encoder; 15. Cylinder; 16. Limit block; 31. First motor; 32. First fixed seat; 33. Reel; 34. Positioning pin; 81. Second motor; 82. Second fixed seat; 83. Connecting seat; 84. Drive wheel; 85. Transmission shaft; 101. Synchronous belt pulley; 102. Connecting pin; 103. Connecting shaft; 104. Tensioning connecting rod; 105. Multi-wire pulley. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Please see Figures 1-6 In this embodiment of the invention, a winding device for automatically adjusting tension during high-speed wire feeding includes a frame 1, a wire feeding mechanism 3, a drive mechanism 8, and a tensioning mechanism 10. The tensioning mechanism 10 is equipped with a pneumatic cylinder loading assembly to replace mechanical counterweights and achieve automatic tension loading. The device is equipped with a tension sensor 13 and an encoder 14, whose signals are linked to form a tension-speed closed-loop adjustment system. The cylinder 15 adaptively adjusts the tension force according to the real-time signals from the tension sensor 13 and the encoder 14 to maintain constant tension during high-speed wire feeding.

[0029] The tensioning mechanism 10 includes a tensioning link 104, a connecting pin 102, and a multi-threaded wheel 105. One end of the tensioning link 104 is rotatably mounted on the frame 1, and the other end is mounted on the multi-threaded wheel 105. A cylinder 15 is hinged to the middle of the tensioning link 104 to drive the link to swing and adjust the tension. The frame 1 has an arc-shaped guide hole 2, and the axle of the multi-threaded wheel 105 passes through the arc-shaped hole 2 and moves along the hole. Rubber buffer limit blocks 16 are provided at both ends of the arc-shaped hole 2 to reduce the impact of the tensioning mechanism 10.

[0030] The wire feeding mechanism 3 is a dual-path synchronous wire feeding structure, which includes a reel 33 driven by a first motor 31 and a wire reel positioning pin 34.

[0031] The frame 1 is provided with a tension verification component 11, which includes a rotatable support rod and a guide wheel for zero-point tension calibration.

[0032] The drive mechanism 8 includes a second motor 81, a transmission shaft 85, and a drive wheel 84, which, together with the auxiliary drive wheel 7, enables stable wire feeding.

[0033] Two wire feeding mechanisms 3 are installed at the lower part of the frame 1. A wire blocking assembly 4 is installed on one side of the frame 1 at the wire feeding mechanism 3. A guide post assembly 5, a single wire guide wheel 6, a secondary drive wheel 7, and a drive mechanism 8 are installed on the frame 1 above the two wire blocking assemblies 4. Two tensioning mechanisms 10 are installed at the upper part of the frame 1. A tensioning wheel group 9 is installed on one side of the frame 1 at the tensioning mechanism 10. A single-wheel guide wheel 12 and a tension sensor 13 are installed on the frame 1 above each of the two tensioning wheel groups 9. An encoder 14 is installed inside the frame 1 on one side of the tensioning mechanism 10. A verification assembly 11 is installed on the upper part of the frame 1. The verification assembly 11 includes a verification support rod and a single guide wheel. One end of the verification support rod is mounted on the frame 1 via a pin, and the other end of the support rod is rotatably mounted with a single guide wheel. During operation, the two sets of wire feeding mechanisms 3 at the bottom of the frame 1 actively drive the reel 33 to feed the wire. After the wire passes through the wire blocking assembly 4, the guide post assembly 5, and the single wire guide wheel 6, it is stably conveyed by the drive mechanism 8 and the auxiliary drive wheel 7. The wire passes through the tension wheel group 9 and the single wheel guide wheel 12 in sequence. The tension sensor 13 collects the tension signal in real time, and the encoder 14 monitors the wire feeding speed and wire length simultaneously. The control system compares the real-time tension with the set value and outputs a control signal to drive the cylinder 15 to extend and retract. The cylinder 15 pushes the tension connecting rod 104 to swing around the connecting pin 102, which drives the multi-wire wheel 105 to move along the arc hole 2, changing the wire wrap angle and tension force, and quickly compensating for tension fluctuations during high-speed wire feeding. The top calibration assembly 11 is used for zero-point tension calibration, and the limit blocks 16 at both ends of the arc hole 2 realize buffer limit, ultimately achieving high-speed, stable, and continuous automatic tension wire feeding output.

[0034] The wire feeding mechanism 3 includes a first fixed base 32, a reel 33 and a first motor 31. The first fixed base 32 is fixed on the frame 1, and the first motor 31 is mounted on the first fixed base 32. The first motor 31 drives the reel 33 to rotate. The reel 33 is equipped with a positioning pin 34 for positioning the wire reel.

[0035] The drive mechanism 8 includes a second motor 81, a second fixed base 82, a connecting base 83, a drive wheel 84, and a transmission shaft 85. The second fixed base 82 is fixed on the frame 1, the second motor 81 is mounted on the second fixed base 82, the second motor 81 drives the transmission shaft 85 to rotate, and the transmission shaft 85 is equipped with the drive wheel 84.

[0036] The tensioning mechanism 10 includes a tensioning link 104, one end of which is rotatably mounted on the frame 1 via a connecting pin 102. A synchronous pulley 101 is rotatably mounted on one end of the tensioning link 104 near the connecting pin 102, and a multi-thread pulley 105 is rotatably mounted on the other end of the tensioning link 104. It also includes a cylinder 15, one end of which is rotatably mounted on the frame 1 via a pin. A connecting shaft 103 is mounted in the middle of the tensioning link 104, and the other end of the cylinder 15 is rotatably connected to the connecting shaft 103. The frame 1 has an arc-shaped hole 2 through which the shaft of the multi-thread pulley 105 passes. Limiting blocks 16, which are rubber blocks, are installed at both ends of the arc-shaped hole 2 on the frame 1 to buffer and limit the movement of the tensioning link 104. The cylinder 15 pushes the tensioning rod 104 to swing around the connecting pin 102, which drives the multi-thread wheel 105 to move along the arc hole 2, changing the wire wrap angle and tension, and quickly compensating for tension fluctuations during high-speed wire feeding.

[0037] The working principle of this invention is as follows: During operation, the two sets of wire feeding mechanisms 3 at the bottom of the frame 1 actively drive the reel 33 to feed the wire. After the wire passes through the wire blocking assembly 4, the guide post assembly 5, and the single wire guide wheel 6, it is stably conveyed by the drive mechanism 8 and the auxiliary drive wheel 7. The wire passes through the tension wheel group 9 and the single wheel guide wheel 12 in sequence. The tension sensor 13 collects the tension signal in real time, and the encoder 14 monitors the wire feeding speed and wire length simultaneously. The control system compares the real-time tension with the set value and outputs a control signal to drive the cylinder 15 to extend and retract. The cylinder 15 pushes the tension connecting rod 104 to swing around the connecting pin shaft 102, which drives the multi-wire wheel 105 to move along the arc hole 2, changing the wire wrap angle and tension force, and quickly compensating for tension fluctuations during high-speed wire feeding. The top calibration assembly 11 is used for zero-point tension calibration, and the limit blocks 16 at both ends of the arc hole 2 realize buffering and limiting, ultimately achieving high-speed, stable, and continuous automatic tension wire feeding output.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A winding device for automatically adjusting tension during high-speed wire feeding, comprising a frame (1), a wire feeding mechanism (3), a drive mechanism (8), and a tensioning mechanism (10), characterized in that: The tensioning mechanism (10) is equipped with a pneumatic cylinder loading component to replace the mechanical counterweight and achieve automatic tension loading; the device is equipped with a tension sensor (13) and an encoder (14), and the signals of the two are linked to form a tension-speed closed-loop adjustment system; the cylinder (15) adaptively adjusts the tension force according to the real-time signals of the tension sensor (13) and the encoder (14) to maintain constant tension at high speed.

2. The winding device for automatically adjusting tension during high-speed unwinding according to claim 1, characterized in that: The tensioning mechanism (10) includes a tensioning rod (104), a connecting pin (102), and a multi-thread wheel (105). One end of the tensioning rod (104) is rotatably mounted on the frame (1), and the other end is mounted on the multi-thread wheel (105). A cylinder (15) is hinged to the middle of the tensioning rod (104) to drive the rod to swing and adjust the tension.

3. The winding device for automatically adjusting tension during high-speed unwinding according to claim 2, characterized in that: The frame (1) has an arc-shaped guide hole (2), and the axle of the multi-line wheel (105) passes through the arc-shaped hole (2) and moves along the hole.

4. The winding device for automatically adjusting tension during high-speed unwinding according to claim 3, characterized in that: The arc-shaped hole (2) is provided with rubber buffer limit blocks (16) at both ends to reduce the impact of the tensioning mechanism (10) movement.

5. The winding device for automatically adjusting tension during high-speed unwinding according to claim 1, characterized in that: The wire feeding mechanism (3) is a dual-path synchronous wire feeding structure, which includes a reel (33) driven by a first motor (31) and a wire reel positioning pin (34).

6. The winding device for automatically adjusting tension during high-speed unwinding according to claim 1, characterized in that: The frame (1) is provided with a tension verification component (11) above it. The verification component (11) includes a rotatable support rod and a guide wheel for zero-point tension calibration.

7. The winding device for automatically adjusting tension during high-speed unwinding according to claim 1, characterized in that: The drive mechanism (8) includes a second motor (81), a transmission shaft (85) and a drive wheel (84), which works in conjunction with the auxiliary drive wheel (7) to achieve stable wire conveying.

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