Tension buffering machine and wire rewinding production line

Abstract

The utility model provides a tension buffering machine and a wire rewinding production line, and belongs to the field of wire winding devices. The tension buffering machine comprises a rack, a fixed guide wheel and a tension wheel, the fixed guide wheel is installed on the rack, a swing rod capable of swinging around a fixed shaft is arranged on the rack, the tension wheel is installed on the swing rod and can be close to or away from the fixed guide wheel along with swinging of the swing rod, and the tension buffering machine further comprises a rotating speed detection structure used for detecting the rotating speed of the fixed guide wheel. The rotating speed detection structure is used for being in communication connection with a take-up machine in the wire rewinding production line so that the take-up machine can adjust the take-up speed of the wire according to the rotating speed of the fixed guide wheel. The wire rewinding production line comprises the tension buffering machine. The rotating speed of the fixed guide wheel in the tension buffering machine is detected, so that the take-up speed of the take-up machine is adjusted according to the rotating speed of the fixed guide wheel, a traction machine can be omitted, and the number of equipment on a wire rewinding production line is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wire winding equipment, and in particular relates to a tension buffer machine and a wire rewinding production line. Background Technology

[0002] Metal wires, such as titanium alloy wires, typically require multiple drawing processes to form their shape. Drawing causes work hardening, so after several drawing steps, annealing is necessary before further processing. During the drawing process, a layer of lubricating grease adheres to the wire surface; this grease must be thoroughly cleaned before annealing.

[0003] Typically, a production line for cleaning operations includes a pay-off machine, a pay-off buffer machine, a traction machine, a take-up tension buffer machine, a take-up machine, and a cleaning device between the pay-off buffer machine and the traction machine. The wire is released from the pay-off machine, passes through the cleaning device, and is then driven at a constant speed by the traction machine, before being rewound by the take-up machine. The wire on the production line needs to maintain a certain tension. Excessive tension will cause the wire diameter to become thinner or break, while insufficient tension will prevent it from being taut and will easily rub against the air nozzle, causing surface damage. The tension of the wire is adjusted by the tension buffer of the wire feeding machine. The constant tension device disclosed in Chinese Utility Model Patent No. CN210788655U is a kind of tension buffer. The constant tension device includes a frame, a fixed guide wheel and a tension wheel. The fixed guide wheel is fixed in position relative to the frame, and the tension wheel can move relative to the frame. After the wire enters the frame, it first passes around the fixed guide wheel, then around the tension wheel, and finally passes around the fixed guide wheel again before exiting the frame. A swing arm that can swing is set on the frame, and the tension wheel is installed on the swing arm. The tension wheel tensions the wire by its own weight.

[0004] The traction machine installed on the wire production line is used to provide power for the transmission of the wire and to maintain a constant transmission speed of the wire on the production line.

[0005] For production lines that do not require significant traction force on the wire, such as cleaning production lines, the take-up machine can provide sufficient power to pull the wire. However, as the number of turns of the wire on the take-up reel increases, the diameter of the wire roll will increase. With the angular velocity of the take-up reel remaining constant, the linear velocity of the wire will gradually increase. Currently, the take-up reel in the take-up machine cannot adjust its rotation speed according to the wire's transmission speed. Simply removing the traction machine will cause unstable wire transmission speed and unstable tension on the production line, affecting the normal processing and handling of the wire.

[0006] Because the number of turns of the wire wound on the traction wheel of the traction machine remains constant, the wire transmission speed can be kept constant as long as the angular velocity of the traction wheel remains constant. Therefore, in production lines that do not require a large traction force on the wire, the take-up machine cannot replace the traction machine due to the need for wire speed control. This results in more equipment on the production line, requiring a larger area for equipment installation and increasing costs. Utility Model Content

[0007] One of the objectives of this utility model is to provide a tension buffer machine to solve the technical problem of high cost and large footprint caused by the inability of the take-up wheel in the take-up machine to adjust its speed according to the transmission speed of the wire when applied to the wire rewinding production line. Therefore, a traction machine is needed to maintain the uniform transmission of the wire, resulting in a large number of equipment in the wire rewinding production line.

[0008] Another objective of this invention is to provide a wire rewinding production line to solve the technical problem that the take-up reel in the take-up machine cannot adjust its rotation speed according to the wire transmission speed, so a traction machine is needed to maintain the wire transmission at a uniform speed, resulting in a large number of devices in the wire rewinding production line, leading to high cost and large footprint.

[0009] To achieve the above objectives, the technical solution of the tension buffer machine provided by this utility model is as follows:

[0010] A tension buffer machine includes a frame, a fixed guide wheel, and a tension wheel. The fixed guide wheel is mounted on the frame, and a swing arm capable of swinging around a rotation axis is provided on the frame. The tension wheel is mounted on the swing arm and can move closer to or further away from the fixed guide wheel as the swing arm swings. The tension buffer machine also includes a speed detection structure for detecting the rotational speed of the fixed guide wheel or the tension wheel, and the speed detection structure has an output interface.

[0011] As a further improvement, the speed detection structure includes a measuring ring and a speed detection proximity switch. The measuring ring is fixed coaxially with the guide wheel and rotates with the guide wheel. Toothed structures are arranged at intervals along the circumference of the outer edge of the measuring ring, and gaps are formed between adjacent toothed structures. The speed detection proximity switch is mounted on the frame and is used to detect the alternation period of the toothed structures and gaps when the measuring ring rotates.

[0012] As a further improvement, the frame is equipped with a tensioning drive mechanism for providing a swinging driving force to the swing arm to tension the wire.

[0013] As a further improvement, the tensioning drive mechanism includes a tensioning cylinder, the cylinder body of which is movably connected to one of the frame and the rocker arm, and the piston rod end of which is movably connected to the other of the frame and the rocker arm.

[0014] As a further improvement, the tension wheel is located below the fixed guide wheel, and the tensioning cylinder is located above the rocker arm. When the piston rod of the tensioning cylinder extends, the rocker arm drives the tension wheel away from the fixed guide wheel to tension the wire.

[0015] As a further improvement, the axis around which the swing arm swings is a rotation axis. The frame is equipped with an angle detection structure for detecting the rotation angle of the rotation axis and thus obtaining the swing angle of the swing arm. The signal output by the angle detection structure can be fed back to the frequency converter of the wire feeding machine so that the wire feeding machine can adjust the wire feeding speed according to the position of the swing arm.

[0016] As a further improvement, the angle detection structure includes a displacement sensor and a follower. The displacement sensor is fixedly mounted on the frame, and the follower is fixed on the rotating shaft and swings with the rotation of the rotating shaft. The follower is provided with an arc-shaped surface for sliding and pressing against the detection head of the displacement sensor. The distance from the arc-shaped surface to the rotating shaft gradually increases or decreases along the circumference.

[0017] As a further improvement, a wire breakage detection proximity switch is also installed on the frame. The detection head of the wire breakage detection proximity switch faces the follower and is used to detect the approach and departure of the follower.

[0018] As a further improvement, the axis around which the swing arm swings is a rotating axis. A follower that swings with the rotation of the rotating axis is fixedly installed on the rotating axis. A wire breakage detection proximity switch is also installed on the frame. The detection head of the wire breakage detection proximity switch faces the follower and is used to detect the state of the follower approaching and moving away.

[0019] The beneficial effects are as follows: The tension buffer machine provided by this utility model is an improvement on the existing technology. This tension buffer machine is equipped with a speed detection structure for detecting the rotational speed of the guide wheel. This speed detection structure can be connected to the pulse input terminal of the take-up machine's frequency converter, thereby enabling the take-up machine to adjust the take-up speed of the wire according to the rotational speed of the guide wheel, ultimately keeping the wire speed near a set value. In this way, the take-up machine can perform all the functions of a traction machine. Therefore, a traction machine is no longer needed in the wire rewinding production line, thus reducing the number of devices in the wire rewinding production line. This reduces both the space occupied and the production cost of the wire.

[0020] To achieve the above objectives, the technical solution of the wire rewinding production line provided by this utility model is as follows:

[0021] A wire rewinding production line includes a wire feeding machine, a wire taking-up machine, wire processing equipment, and a tension buffer machine. The output interface of the speed detection structure in the tension buffer machine is communicatively connected to the taking-up machine. The tension buffer machine includes a frame, a fixed guide wheel, and a tension wheel. The fixed guide wheel is mounted on the frame, and a swing arm capable of swinging around a rotation axis is provided on the frame. The tension wheel is mounted on the swing arm and can move closer to or away from the fixed guide wheel as the swing arm swings. The tension buffer machine also includes a speed detection structure for detecting the rotational speed of the fixed guide wheel or the tension wheel, and the speed detection structure has an output interface.

[0022] As a further improvement, the speed detection structure includes a measuring ring and a speed detection proximity switch. The measuring ring is fixed coaxially with the guide wheel and rotates with the guide wheel. Toothed structures are arranged at intervals along the circumference of the outer edge of the measuring ring, and gaps are formed between adjacent toothed structures. The speed detection proximity switch is mounted on the frame and is used to detect the alternation period of the toothed structures and gaps when the measuring ring rotates.

[0023] As a further improvement, the frame is equipped with a tensioning drive mechanism for providing a swinging driving force to the swing arm to tension the wire.

[0024] As a further improvement, the tensioning drive mechanism includes a tensioning cylinder, the cylinder body of which is movably connected to one of the frame and the rocker arm, and the piston rod end of which is movably connected to the other of the frame and the rocker arm.

[0025] As a further improvement, the tension wheel is located below the fixed guide wheel, and the tensioning cylinder is located above the rocker arm. When the piston rod of the tensioning cylinder extends, the rocker arm drives the tension wheel away from the fixed guide wheel to tension the wire.

[0026] As a further improvement, the axis around which the swing arm swings is a rotation axis. The frame is equipped with an angle detection structure for detecting the rotation angle of the rotation axis and thus obtaining the swing angle of the swing arm. The signal output by the angle detection structure can be fed back to the frequency converter of the wire feeding machine so that the wire feeding machine can adjust the wire feeding speed according to the position of the swing arm.

[0027] As a further improvement, the angle detection structure includes a displacement sensor and a follower. The displacement sensor is fixedly mounted on the frame, and the follower is fixed on the rotating shaft and swings with the rotation of the rotating shaft. The follower is provided with an arc-shaped surface for sliding and pressing against the detection head of the displacement sensor. The distance from the arc-shaped surface to the rotating shaft gradually increases or decreases along the circumference.

[0028] As a further improvement, a wire breakage detection proximity switch is also installed on the frame. The detection head of the wire breakage detection proximity switch faces the follower and is used to detect the approach and departure of the follower.

[0029] As a further improvement, the axis around which the swing arm swings is a rotating axis. A follower that swings with the rotation of the rotating axis is fixedly installed on the rotating axis. A wire breakage detection proximity switch is also installed on the frame. The detection head of the wire breakage detection proximity switch faces the follower and is used to detect the state of the follower approaching and moving away.

[0030] The beneficial effects are as follows: The wire rewinding production line provided by this utility model is an improvement on the existing technology. This wire rewinding production line incorporates a speed detection structure in the tension buffer machine to detect the rotational speed of the guide roller. This speed detection structure is connected to the pulse input terminal of the take-up machine's frequency converter, enabling the take-up machine to adjust the wire take-up speed according to the rotational speed of the guide roller, ultimately maintaining the wire speed near a set value. Since the take-up machine in this wire rewinding production line can perform all the functions of the traction machine, a separate traction machine is unnecessary, thus reducing the number of devices in the wire rewinding production line. This reduces both the space occupied and the production cost of the wire. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the wire rewinding production line of this utility model;

[0032] Figure 2 This is a front structural diagram of the tension buffer machine in Embodiment 1 of the wire rewinding production line of this utility model;

[0033] Figure 3 This is a schematic diagram of the back structure of the tension buffer machine in Embodiment 1 of the wire rewinding production line of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Wire feeding machine; 2. Wire taking machine; 3. Wire processing equipment; 4. Tension buffer machine; 401. Frame; 402. Guide wheel; 403. Tension wheel; 404. Swing rod; 405. Rotating shaft; 406. Upper limit switch; 407. Lower limit switch; 408. Wire breakage proximity switch; 409. Displacement sensor; 410. Measuring ring; 411. Toothed structure; 412. Speed ​​detection proximity switch; 413. Tensioning cylinder; 414. Follower; 5. Wire. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the embodiments.

[0037] To address the problems in the existing technology, the basic concept of this utility model is to detect the rotational speed of the guide wheel in the tension buffer machine, so that the take-up machine can adjust its take-up speed according to the rotational speed of the guide wheel, thereby eliminating the need for a traction machine and reducing the number of devices on the wire rewinding production line.

[0038] Specific embodiment 1 of the wire rewinding production line provided by this utility model:

[0039] See appendix Figure 1 The wire rewinding production line includes a wire unwinding machine 1, a wire take-up machine 2, a wire processing device 3, and a tension buffer machine 4. The wire unwinding machine 1 is used to unwind the coiled wire 5, and the wire take-up machine 2 is used to wind the wire 5. Both the wire unwinding machine 1 and the wire take-up machine 2 are existing technologies and will not be described in detail here. The wire processing device 3 can be a device for cleaning the wire 5, or it can be other processing equipment that does not require a large traction force on the wire 5.

[0040] See appendix Figure 2 and attached Figure 3 The tension buffer 4 includes a frame 401, a fixed guide wheel 402, and a tension wheel 403. The fixed guide wheel 402 is rotatably mounted on the frame 401. The frame 401 is provided with a swing rod 404 that can swing around a rotation axis. The axis around which the swing rod 404 swings is its rotation axis 405. The tension wheel 403 is rotatably mounted on the end of the swing rod 404 away from the rotation axis 405. The swing rod 404 can make the tension wheel 403 move closer to or away from the fixed guide wheel 402 by swinging.

[0041] The fixed guide wheel 402 consists of three coaxial sub-guide wheels, each with an annular groove for guiding the wire 5. The tension wheel 403 consists of two coaxial sub-guide wheels, each with an annular groove for guiding the wire 5. In other embodiments, both the fixed guide wheel 402 and the tension wheel 403 can be made of a single guide wheel, with different numbers of grooves formed on the guide wheel to meet the guiding requirements of the wire 5.

[0042] Tension wheel 403 is located below fixed guide wheel 402, attached Figure 2 and attached Figure 3 The direction indicated by the middle arrow is the transmission direction of wire 5. Wire 5, passing through the tension buffer machine 4, goes over the fixed guide wheel 402 from above, then around the tension wheel 403 downwards. Wire 5 then goes over the fixed guide wheel 402 again, then around the tension wheel 403 again, and finally around the fixed guide wheel 402 again before exiting the tension buffer machine 4. The tension wheel 403 and the fixed guide wheel 402 are connected by four segments of wire 5. The swing arm 404 can tighten the wire 5 by swinging the tension wheel 403.

[0043] The frame 401 is provided with an upper limit member 406 and a lower limit member 407 for limiting the swing of the swing arm 404. The upper limit member 406 and the lower limit member 407 are located on the upper and lower sides of the swing direction of the swing arm 404, respectively, and correspond to the upward swing limit position and the downward swing limit position of the swing arm 404, respectively. The upper limit member 406 and the lower limit member 407 can prevent the swing arm 404 from swinging too much.

[0044] The frame 401 is equipped with an angle detection structure for detecting the rotation angle of the rotating shaft 405 and thus obtaining the swing angle of the swing arm 404. This angle detection structure allows the determination of the position of the swing arm 404. Specifically, the angle detection structure includes a displacement sensor 409 and a follower 414. The displacement sensor 409 is fixedly mounted on the frame 401, and the follower 414 is fixed to the rotating shaft 405 and can swing with the rotation of the rotating shaft 405. The end of the follower 414 radially away from the rotating shaft 405 is an arc-shaped surface, and the detection head of the displacement sensor 409 slides and presses against the arc-shaped surface. The rotating shaft 405 can drive the follower 414 to swing. Since the position of the displacement sensor 409 remains unchanged, during the swinging process of the follower 414, the movement trajectory of the detection head of the displacement sensor 409 on the arc-shaped surface is along the circumference of the rotating shaft 405. One end of the arc-shaped surface is close to the rotating shaft 405 while the other end is far away from the rotating shaft 405. The distance from the arc-shaped surface to the rotating shaft 405 gradually increases or decreases along the circumferential direction. During the swing of the follower 414, it is in different positions, and the extension amount detected by the detection head of the displacement sensor 409 is different. In this way, the swing angle of the follower 414 can be converted into the linear movement of the detection head of the displacement sensor 409, which is convenient for detection.

[0045] Displacement sensor 409 is connected to the analog input terminal of the drive inverter of the wire feeding machine 1. Displacement sensor 409 can transmit the position information of the swing arm 404 to the drive inverter of the wire feeding machine 1 in real time, enabling the wire feeding machine 1 to adjust the feeding speed of the wire 5 according to the position of the swing arm 404. Specifically, when the swing arm 404 swings downwards too much, the wire feeding machine 1 slows down the feeding speed, thereby tauting the wire 5 and causing the swing arm 404 to move upwards under the pull of the wire 5; when the swing arm 404 swings upwards too much, the wire feeding machine 1 speeds up the feeding speed, thereby reducing the tautness of the wire 5 and causing the swing arm 404 to swing downwards under the drive of the tension cylinder 413. Therefore, without any wire breakage in the wire 5, this method ensures that the swing arm 404 remains in the middle position between the upper limit member 406 and the lower limit member 407.

[0046] The frame 401 is also equipped with a wire breakage detection proximity switch. The detection head of the wire breakage detection proximity switch faces the follower 414 and is used to detect the approach and departure of the follower 414. Since the follower 414 swings synchronously with the swing arm 404, the position of the follower 414 can be detected to determine whether the swing arm 404 is at its downward swing limit. If the swing arm 404 remains at its downward swing limit for more than a few seconds, it can be considered that the wire 5 has broken.

[0047] The tension buffer 4 also includes a speed detection structure for detecting the rotational speed of the fixed guide wheel 402. The speed detection structure includes a measuring ring 410 and a speed detection proximity switch 412. The measuring ring 410 is coaxially fixed to the fixed guide wheel 402 and rotates with it. Toothed structures 411 are arranged circumferentially at intervals along the outer edge of the measuring ring 410, with gaps formed between adjacent toothed structures 411. The detection head of the speed detection proximity switch 412 faces the toothed structures 411. During the rotation of the measuring ring 410, the toothed structures 411 and the gaps between adjacent toothed structures 411 alternately approach the detection head of the proximity switch, thereby generating a pulse signal. The period of this pulse signal is the alternation period between the toothed structures 411 and the gaps. The rotational speed of the measuring ring 410 can be calculated based on the period of the pulse signal, and thus the rotational speed of the fixed guide wheel 402 can be obtained. The speed detection proximity switch 412 in this speed detection structure does not directly contact the measuring ring 410, thus avoiding wear during use and ensuring a longer service life. For the measurement principle of the rotation speed measuring structure, you can also refer to the spindle rotation speed end detection mechanism in Chinese utility model patent with authorization announcement number CN207964861U.

[0048] The output interface of the speed detection proximity switch 412 in the speed detection structure is connected to the pulse input terminal of the drive inverter of the take-up machine 2. The connection can be wired or wireless. The speed detection proximity switch 412 can transmit the speed information of the guide roller 402 to the drive inverter of the take-up machine 2 in real time, allowing the take-up machine 2 to adjust the take-up speed of the wire 5 according to the speed of the guide roller 402. For example, as the take-up machine 2 takes up the wire 5, the diameter of the wire 5 coil will increase, and the linear speed of the wire 5 will increase accordingly. With the increased linear speed of the wire 5, the speed of the guide roller 402 will increase accordingly. At this time, the take-up machine 2 will reduce the take-up speed of the wire 5 according to the speed information of the guide roller 402, thus bringing the transmission speed of the wire 5 back to near the set value. Using this method, the wire 5 can be kept passing through the production line uniformly at the set speed, thus eliminating the need for a traction machine, reducing the floor space of the entire wire rewinding production line, and reducing processing costs.

[0049] The tension buffer machine 4 in this embodiment also includes a tensioning drive mechanism for providing a swinging driving force to the swing arm 404 to tension the wire 5. The tensioning drive mechanism is a tensioning cylinder 413, which is located above the swing arm 404. The cylinder body of the tensioning cylinder 413 is movably connected to the frame 401 by a hinge, and the piston rod end of the tensioning cylinder 413 is movably connected to the swing arm 404 by a hinge. When the piston rod of the tensioning cylinder 413 extends, the swing arm 404 swings downward; when the piston rod of the tensioning cylinder 413 retracts, the swing arm 404 swings upward. The tensioning cylinder 413 is adjusted by a regulating valve to obtain a suitable air pressure, which can balance the tension provided by the four segments of wire 5 connected between the tension wheel 403 and the guide wheel 402 and keep the swing arm 404 in the middle position between the upper limit member 406 and the lower limit member 407.

[0050] Specific embodiment 2 of the wire rewinding production line provided by this utility model:

[0051] This embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that the tensioning drive mechanism in this embodiment is a tension spring. The tension spring is located below the swing arm, and its upper end is fixed to the swing arm and its lower end is fixed to the frame.

[0052] Specific embodiment 3 of the wire rewinding production line provided by this utility model:

[0053] This embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that no tensioning drive structure is set in this embodiment. The tensioning of the wire is achieved by the weight of the swing arm and the tensioning wheel. If the tension is insufficient, a counterweight can be configured to increase the tension.

[0054] Specific embodiment 4 of the wire rewinding production line provided by this utility model:

[0055] This embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that no displacement sensor is set in this embodiment. Instead, an upper limit proximity switch is set on the frame at the position corresponding to the upper swing limit position of the swing arm. Both the upper limit proximity switch and the wire breakage detection proximity switch are connected to the digital input terminal of the wire feeding machine frequency converter.

[0056] In this embodiment, when the swing arm swings upward and approaches the upper limit proximity switch, the wire feeding machine accelerates the wire feeding speed. When the swing arm swings downward and approaches the wire breakage detection proximity switch, the wire feeding machine slows down the wire feeding speed. This method can also be used to control the position of the swing arm. However, if the swing arm remains at the lower swing limit position for an extended period, for example, if the swing arm remains at the lower swing limit position for more than 2.5 seconds, it can be assumed that the wire has broken, and the control system will stop.

[0057] Specific embodiment 5 of the wire rewinding production line provided by this utility model:

[0058] This embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that the speed detection structure in this embodiment is an encoder.

[0059] Specific embodiments of the tension buffer machine provided by this utility model:

[0060] The tension buffer machine is the tension buffer machine in the specific embodiment of the wire rewinding production line mentioned above, and will not be described in detail again.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tension buffer comprising a frame, a dead guide and a tension roller, the dead guide being mounted on the frame, a swing lever being provided on the frame and being able to swing around a rotation axis, the tension roller being mounted on the swing lever and being able to approach or move away from the dead guide with the swing of the swing lever, characterized in that, The tension buffer machine further comprises a rotating speed detection structure for detecting the rotating speed of the guide wheel or the tension wheel, and the rotating speed detection structure has an output interface.

2. The tension buffer machine of claim 1, wherein, The rotating speed detection structure comprises a measuring ring coaxially fixed with the guide wheel and rotating with the guide wheel, and a rotating speed detection proximity switch.

3. The tension buffer machine according to claim 1 or 2, characterized in that, The outer edge of the measuring ring is provided with a toothed structure at intervals in the circumferential direction, and adjacent toothed structures form gaps.

4. The tension buffer machine of claim 3, wherein, The machine frame is provided with a tensioning driving mechanism for providing a swing driving force to the swing rod to tension the wire rod.

5. The tension buffer machine of claim 4, wherein, The tensioning driving mechanism comprises a tensioning cylinder, a cylinder body of which is movably connected with one of the machine frame and the swing rod, and a piston rod end of which is movably connected with the other of the machine frame and the swing rod.

6. The tension buffer machine according to claim 1 or 2, wherein The tension wheel is located below the guide wheel, and the tensioning cylinder is located above the swing rod.

7. The tension buffer machine of claim 6, wherein, When the piston rod of the tensioning cylinder extends, the swing rod drives the tension wheel away from the guide wheel to tension the wire rod.

8. The tension buffer machine of claim 7, wherein, The swing rod swings around a rotating shaft, and the machine frame is provided with an angle detection structure for detecting the rotation angle of the rotating shaft and further obtaining the swing angle of the swing rod.

9. The tension buffer machine according to claim 1 or 2, wherein The angle detection structure outputs a signal that can be fed back to the frequency converter of the wire drawing machine to enable the wire drawing machine to adjust the wire drawing speed according to the position of the swing rod.

10. A wire rewinding production line, comprising a wire feeding machine, a wire taking-up machine, wire processing equipment, and a tension buffer machine, characterized in that the tension... The angle detection structure comprises a displacement sensor fixedly installed on the machine frame and a follower fixed on the rotating shaft and swinging with the rotation of the rotating shaft. The follower is provided with an arc surface for sliding and abutting cooperation with the detection head of the displacement sensor, and the distance from the arc surface to the rotating shaft gradually increases or gradually decreases in the circumferential direction. The machine frame is further provided with a wire breakage detection proximity switch, and the detection head of the wire breakage detection proximity switch faces the follower and is used to detect the approaching and receding states of the follower. The swing rod swings around a rotating shaft, and the rotating shaft is fixedly provided with a follower that swings with the rotation of the rotating shaft. The machine frame is further provided with a wire breakage detection proximity switch, and the detection head of the wire breakage detection proximity switch faces the follower and is used to detect the approaching and receding states of the follower. The buffer machine is the tension buffer machine of any one of claims 1-9, and the output interface of the rotating speed detection structure of the tension buffer machine is in communication connection with the wire winding machine.

Images