Servo tensioner with wire returning function
By designing a servo tensioner with a return function, and utilizing the cooperation of the anti-tension rod and the drive mechanism, a wire feeding and return mechanism is realized, which solves the problem of uneven winding when the enameled wire is slack in the existing servo tensioner, and improves the winding quality and uniformity.
Patent Information
- Application Number
- CN202520490101.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing servo tensioners lack a return function during the winding process, resulting in uneven winding and disordered coil arrangement when the enameled wire loosens, which affects the winding quality.
A servo tensioner with return function was designed, comprising a base plate, an anti-tension bar, an elastic element, a conveyor belt, and a drive mechanism. Through the rotation trajectory of the anti-tension bar and the cooperation of the drive mechanism, the wire feeding and return mechanism are realized to maintain constant tension, and the enameled wire is straightened by the conveyor belt.
This effectively prevents the enameled wire from slackening beyond the adjustment range of the elastic element, ensuring the winding quality. Furthermore, the friction of the conveyor belt stabilizes the conveying and straightening process, improving the uniformity and quality of the winding.
Smart Images
Figure CN223851953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to servo tensioner technical field, concretely relates to a servo tensioner with back line function. BACKGROUND
[0002] In the winding process of the enameled wire, tension control is the key element to ensure the quality and performance of the wound product. Therefore, modern winding machines are generally equipped with servo tensioners, which are constant tension control tensioners that can actively feed the wire. Through the built-in motor, it actively outputs the wire speed within the controllable torque and speed range, ensures that the output wire speed can follow the wire speed change of the wound product, maintains a relatively fixed speed difference, and thus maintains the constant tension of the enameled wire at both ends.
[0003] Common servo tensioners usually include key components such as a base plate, a main wire wheel, a guide wheel, a counter-tension rod, and a tension spring. Among them, the base plate serves as a support structure, providing an installation platform for other components. The main wire wheel is connected to a motor and driven by the motor to actively rotate, providing a constant supply of enameled wire for the winding process. The guide wheel is used to guide the enameled wire to travel along a predetermined path, ensuring the accuracy and consistency of the winding. One end of the counter-tension rod is rotatably connected to the base plate through a shaft, and the other end is connected to the wire outlet wheel. The enameled wire is wound onto the skeleton of the wound product after passing through the guide wheel and the wire outlet wheel in sequence. The two ends of the tension spring are connected to the counter-tension rod and the base plate, respectively, and the tension of the enameled wire is balanced and maintained through the elastic force of the tension spring.
[0004] In order to realize accurate control of the tension, the servo tensioner is also equipped with an angle sensor inside. The sensor is electrically connected to the motor control circuit, and its output shaft is mechanically connected to the shaft of the counter-tension rod, which can monitor the swing angle of the counter-tension rod in real time. In the tensioner control program, a motor starting voltage bit and control method are set. According to the setting, when the counter-tension rod swings to the set starting angle due to the change of the enameled wire tension, the starting voltage is triggered, and the motor immediately drives the main wire wheel to rotate, continuously feeding the enameled wire. The greater the swing angle of the counter-tension rod is greater than the starting angle, the faster the motor rotates, and the more enameled wire is fed to maintain constant tension. As the enameled wire is continuously fed, the tension of the enameled wire between the counter-tension rod and the skeleton will decrease. At this time, the counter-tension rod swings in the opposite direction under the action of the tension spring. When the swing angle of the counter-tension rod is less than the starting angle, the motor stops rotating and stops feeding the enameled wire, while the wound product continues to be wound under the action of the winding machine. The counter-tension rod will be tilted and swung towards the product skeleton direction driven by the enameled wire, until the starting angle is reached again, the motor is restarted, and the cycle continues.
[0005] However, although the existing servo tensioner can meet the needs of tension control through this dynamic adjustment mechanism in most cases, ensuring the stability and continuity of the tension during the winding process, they usually do not have a return line function. This means that during the winding process, once the enameled wire is relaxed to a certain extent due to sudden stop, product replacement or other reasons, beyond the effective adjustment range of the tension spring, it may cause uneven winding, coil arrangement disorder and other problems, affecting the winding quality.
[0006] Therefore, in order to solve the deficiency of the existing servo tensioner in dealing with the relaxation of enameled wire and improve the winding quality, it is necessary to develop a servo tensioner with a return line function. Content of the utility model
[0007] (1) Technical problems solved
[0008] The utility model provides a servo tensioner with a return line function, and at least the technical problem of how to improve the winding quality can be solved.
[0009] (2) Technical solutions
[0010] In order to solve the above technical problems, the utility model provides the following technical solutions: a servo tensioner with a return line function, comprising a base plate, a counter-tension rod and an elastic member, one end of the counter-tension rod is rotatably arranged on the base plate, the other end of the counter-tension rod is connected with an outgoing wire wheel, the rotation track of the counter-tension rod comprises an initial position and a wire feeding position, one end of the elastic member is connected to the base plate, the other end of the elastic member is connected with the counter-tension rod, and the elastic member is used to drive the counter-tension rod to move towards the initial position.
[0011] The servo tensioner with a return line function further comprises:
[0012] Two symmetrical conveyors, a conveying channel is formed between the two conveyors, the conveying channel is used for the enameled wire to penetrate through and press the enameled wire straight;
[0013] A driving mechanism is arranged on the base plate and is in transmission connection with one or two conveyors, the driving mechanism is used to drive the two conveyors to rotate in opposite directions, so as to drive the enameled wire in the conveying channel to move towards or away from the counter-tension rod;
[0014] Among them, the rotation track of the counter-tension rod further comprises a return line position, the return line position is located between the initial position and the wire feeding position, when the counter-tension rod swings from the initial position towards the wire feeding position and swings to the wire feeding position or beyond the wire feeding position, the driving mechanism drives the enameled wire in the conveying channel to move towards the counter-tension rod; when the counter-tension rod swings towards the initial position and swings to the return line position or between the return line position and the initial position, the driving mechanism drives the enameled wire in the conveying channel to move away from the counter-tension rod.
[0015] Further, the driving mechanism comprises:
[0016] The two symmetrical pulley sets each comprise at least two pulleys rotatably arranged on the base plate, and two conveying belts correspond to the two pulley sets respectively, and the conveying belts are in driving connection with the pulleys of the corresponding pulley sets;
[0017] The rotating driving member is arranged on the base plate and is in driving connection with any pulley of one or two pulley sets, and the rotating driving member is used for driving the pulleys to rotate, and the pulleys drive the corresponding conveying belts to rotate.
[0018] Further, the at least two pulleys of the same pulley set are arranged at equal intervals on the same straight line, so that the conveying channel is arranged in the direction along the straight line.
[0019] Further, the base plate is provided with a wire passing hole, the wire passing hole is coaxially arranged on the wire inlet side of the wire winding state of the conveying channel and is in communication with the conveying channel, and the wire passing hole is used for the enameled wire to pass through.
[0020] Further, the base plate is further provided with a wool felt assembly, the wool felt assembly is provided with a cleaning channel, the cleaning channel is coaxially arranged on the wire inlet side of the wire winding state of the conveying channel and is in communication with the wire passing hole and the conveying channel, and the cleaning channel is used for the enameled wire to pass through.
[0021] Further, the wire passing hole is provided with two wire passing holes, and the two wire passing holes are respectively located on the wire inlet side of the wire winding state of the cleaning channel and the conveying channel.
[0022] (Three) beneficial effects
[0023] Compared with the prior art, the servo tensioner with a return wire function provided by the utility model has the following beneficial effects:
[0024] 1、The servo tensioner with rewinding function, when winding, the enameled wire is led out from the conveying channel, then passes through the outgoing wire wheel and is wound on the skeleton of the product being wound; in the winding process, the counter-tension rod swings from the initial position towards the wire feeding position and compresses or stretches the elastic member until the counter-tension rod swings to the wire feeding position or beyond the wire feeding position, the driving mechanism drives the two conveying belts to rotate, which drives the enameled wire in the conveying channel to move towards the counter-tension rod continuously, and the more the counter-tension rod swings beyond the wire feeding position, the more the enameled wire fed by the driving mechanism and the conveying belt, so as to maintain constant tension; with the continuous feeding of the enameled wire, the tension of the enameled wire between the counter-tension rod and the skeleton decreases, at this time, the counter-tension rod swings back to the initial position under the elastic force of the elastic member, when the counter-tension rod swings back to the rewinding position or between the rewinding position and the initial position, the driving mechanism drives the enameled wire in the conveying channel to move away from the counter-tension rod continuously, so as to increase the tension of the enameled wire between the counter-tension rod and the skeleton, drive the counter-tension rod to swing towards the wire feeding position, and continuously reciprocate. It can be seen that the servo tensioner not only actively feeds the wire and maintains constant tension during normal winding, but also starts the rewinding mechanism when the enameled wire relaxes to a certain extent, which can tighten the relaxed enameled wire, effectively avoid the situation that the relaxation degree of the enameled wire exceeds the adjustable range of the elastic member, and thus ensure the winding quality of the enameled wire.
[0025] 2、The servo tensioner feeds the wire and rewinds the wire through the two conveying belts pressing the enameled wire, which not only can stably convey the enameled wire through the friction between the two conveying belts and the enameled wire, but also can straighten the enameled wire, further improving the winding quality. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is a first perspective view of the servo tensioner with rewinding function in the embodiment.
[0027] Figure 2 It is a second perspective view of the servo tensioner with rewinding function in the embodiment.
[0028] REFERENCE NUMERALS
[0029] 1、Base plate; 11、Through hole;
[0030] 2、Counter-tension rod; 3、Elastic member; 4、Conveying belt;
[0031] 5、Driving mechanism; 51、Belt wheel set; 511、Belt wheel; 52、Rotary driving member;
[0032] 6、Outgoing wire wheel; 7、Conveying channel; 8、Sensor;
[0033] 9、Wool felt assembly; 91、Cleaning channel. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.
[0035] The utility model provides a kind of servo tensioner with back line function, to solve how to improve the problem of winding quality.
[0036] Referring to Figure 1 And Figure 2 As shown in Figure 1 It is the stereogram of the first view of servo tensioner with back line function in the embodiment, Figure 2 It is the stereogram of the second view of servo tensioner with back line function in the embodiment, the servo tensioner with back line function includes base plate 1, counterforce rod 2, elastic member 3, conveying belt 4 and drive mechanism 5.
[0037] One end of counterforce rod 2 is rotatably connected to base plate 1, and the other end of counterforce rod 2 is connected with outgoing wire wheel 6. The rotation track of counterforce rod 2 includes initial position and wire feeding position, Figure 2 Wherein a is initial position, and b is wire feeding position.
[0038] One end of elastic member 3 is connected to base plate 1, and the other end is connected with counterforce rod 2. Elastic member 3 is used to drive counterforce rod 2 to move towards initial position.
[0039] Two conveying belts 4 are symmetrically arranged, and conveying channel 7 is formed between the two conveying belts 4, which is used for enwrapping and straightening the enameled wire.
[0040] Drive mechanism 5 is installed on base plate 1 and is in transmission connection with one or two conveying belts 4. Drive mechanism 5 is used to drive two conveying belts 4 to rotate in opposite directions, so as to drive the enameled wire in conveying channel 7 to move towards or away from counterforce rod 2.
[0041] Wherein, the rotation track of counterforce rod 2 further includes back line position, and the back line position is located between initial position and wire feeding position, Figure 2 Wherein c is back line position. When counterforce rod 2 swings from initial position towards wire feeding position and swings to wire feeding position or beyond wire feeding position, drive mechanism 5 drives the enameled wire in conveying channel 7 to move towards counterforce rod 2. When counterforce rod 2 swings towards initial position and swings to back line position or between back line position and initial position, drive mechanism 5 drives the enameled wire in conveying channel 7 to move away from counterforce rod 2.
[0042] The servo tensioner with the rewinding function can send out the enameled wire from the conveying channel 7, pass the outgoing wire wheel 6, and then wind the enameled wire on the skeleton of the product to be wound, like Figure 1 The dashed line segment and the arrow represent the approximate winding path and direction of the enameled wire. During the winding process, the counter-tension rod 2 swings from the initial position to the wire feeding position under the force and compresses or stretches the elastic member 3. Until the counter-tension rod 2 swings to the wire feeding position or beyond the wire feeding position, the driving mechanism 5 drives the two conveying belts 4 to rotate, thereby driving the enameled wire in the conveying channel 7 to move continuously towards the counter-tension rod 2 for feeding. The more the counter-tension rod 2 swings beyond the wire feeding position, the more the enameled wire is fed by the driving mechanism 5 and the conveying belts 4, so as to maintain constant tension. As the enameled wire is continuously fed, the tension of the enameled wire between the counter-tension rod 2 and the skeleton decreases, at which time the counter-tension rod 2 swings back to the initial position under the elastic force of the elastic member 3. When the counter-tension rod 2 swings back to the rewinding position or between the rewinding position and the initial position, the driving mechanism 5 drives the enameled wire in the conveying channel 7 to move continuously away from the counter-tension rod 2 for rewinding, so as to increase the tension of the enameled wire between the counter-tension rod 2 and the skeleton, drive the counter-tension rod 2 to swing towards the wire feeding position, and continuously repeat the above process. As can be seen, the servo tensioner not only actively feeds the enameled wire and maintains constant tension during the normal winding process, but also starts the rewinding mechanism when the enameled wire relaxes to a certain extent, thereby re-tightening the relaxed enameled wire and effectively avoiding the situation that the relaxation of the enameled wire exceeds the range that can be effectively adjusted by the elastic member 3, so as to ensure the winding quality of the enameled wire. Moreover, the servo tensioner feeds and rewinds the enameled wire by tightly pressing the enameled wire with the two conveying belts 4, which not only stably conveys the enameled wire through the friction between the two conveying belts 4 and the enameled wire, but also straightens the enameled wire, thereby further improving the winding quality.
[0043] The width of the conveying channel 7 is slightly smaller than the diameter of the enameled wire, thereby playing a dual role of stabilizing the conveying and straightening the enameled wire. Moreover, the conveying belts 4 can be made of soft materials such as belts, so that the conveying belts 4 not only convey the enameled wire through the friction, but also protect the enameled wire from being damaged during the conveying process.
[0044] The elastic member 3 can be a tension spring or a compression spring. In the present embodiment, the elastic member 3 is a tension spring.
[0045] The substrate 1 can further be provided with a sensor 8 for detecting the position of the counter-tension rod 2 and feeding back signals to the motor to control the rotating speed and direction of the motor. The sensor 8 can be an angle sensor 8, a photoelectric sensor 8, a proximity sensor 8 or a displacement sensor 8, etc. In the embodiment, the sensor 8 is an angle sensor 8, which is electrically connected with the drive control circuit of the motor and mechanically connected with the rotating shaft of the counter-tension rod 2. The angle sensor 8 can monitor the swing angle of the counter-tension rod 2 in real time, so as to determine the position of the counter-tension rod 2 and feed back signals to the motor.
[0046] Referring to Figure 1 and Figure 2 In one embodiment of the driving mechanism 5, the driving mechanism 5 comprises a belt wheel set 51 and a rotating drive 52. The belt wheel set 51 is symmetrically provided with two, and the belt wheel set 51 comprises at least two belt wheels 511 rotatably connected to the substrate 1. The two conveying belts 4 correspond to the two belt wheel sets 51 respectively, and the conveying belts 4 are drivingly connected with the belt wheels 511 of the corresponding belt wheel sets 51. The rotating drive 52 is installed on the substrate 1 and drivingly connected with any belt wheel 511 of one or both of the belt wheel sets 51. The rotating drive 52 is used to drive the belt wheels 511 to rotate, and the belt wheels 511 drive the corresponding conveying belts 4 to rotate. In this way, when the counter-tension rod 2 swings from the initial position to the wire feeding position, or beyond the wire feeding position, the rotating drive 52 is started to drive the conveying belts 4 to rotate through the belt wheel set 51, so as to drive the enameled wire in the conveying channel 7 to move towards the counter-tension rod 2, continuously feed and wind on the skeleton of the product being wound; the more the counter-tension rod 2 swings beyond the wire feeding position, the faster the rotating drive 52 rotates, so as to feed more enameled wire, thereby achieving the effect of maintaining constant tension; when the counter-tension rod 2 swings towards the initial position to the wire returning position, or between the wire returning position and the initial position, the rotating drive 52 drives the conveying belts 4 to rotate reversely through the belt wheel set 51, so as to drive the enameled wire in the conveying channel 7 to move away from the counter-tension rod 2, continuously feed back.
[0047] The rotating drive 52 can use an existing servo motor or servo motor and the like, and can be drivingly connected with the belt wheels 511 through any transmission mechanism such as an existing gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism.
[0048] Referring to Figure 1 On the basis of the above embodiment, at least two belt wheels 511 of the same belt wheel set 51 are arranged at equal intervals on the same straight line, so that the conveying channel 7 is arranged in the straight line direction. The longer the conveying channel 7 formed in this way, the better the straightening effect on the enameled wire, and the better the winding quality.
[0049] Referring to Figure 1As shown, on the basis of any of the above embodiments, the substrate 1 has a wire passing hole 11. The wire passing hole 11 is located at the wire input side of the winding state of the conveying channel 7 and is coaxial with the conveying channel 7. The wire passing hole 11 is in communication with the conveying channel 7. The wire passing hole 11 is used for the enameled wire to pass through. In this way, when winding, the enameled wire first passes through the wire passing hole 11 to input the servo tensioner, and then inputs the conveying channel 7. The wire passing hole 11 can limit and guide the input position and input path of the enameled wire, and can also play a role in straightening the enameled wire, further improving the winding quality.
[0050] Referring to Figure 1 As shown, on the basis of the above embodiments, the substrate 1 is further provided with a wool felt assembly 9. The wool felt assembly 9 has a cleaning channel 91. The cleaning channel 91 is located at the wire input side of the winding state of the conveying channel 7 and is coaxial with the conveying channel 7. The cleaning channel 91 is in communication with the wire passing hole 11 and the conveying channel 7. The cleaning channel 91 is used for the enameled wire to pass through. In this way, when winding, the enameled wire first passes through the cleaning channel 91 before inputting the conveying channel 7, and is cleaned and straightened by the wool felt assembly 9. This can not only effectively prevent the enameled wire from bringing impurities to the conveying belt 4 to damage the subsequent enameled wire input into the conveying channel 7, but also further improve the winding quality.
[0051] Referring to Figure 1 As shown, on the basis of the above embodiments, the number of wire passing holes 11 is two. One of the wire passing holes 11 is located at the wire input side of the winding state of the cleaning channel 91, and the other wire passing hole 11 is located at the wire input side of the winding state of the conveying channel 7. In this way, the two wire passing holes 11 can limit and guide the input position and input path of the enameled wire input into the cleaning channel 91 and the conveying channel 7, so that the enameled wire can be smoothly input into the cleaning channel 91 and the conveying channel 7, further improving the winding quality.
[0052] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A servo tensioner with a return-line function, comprising a base plate, a counter-tension rod, and an elastic element, wherein one end of the counter-tension rod is rotatably mounted on the base plate, and the other end of the counter-tension rod is connected to a lead-out wheel; the rotation trajectory of the counter-tension rod includes an initial position and a lead-out position; one end of the elastic element is connected to the base plate, and the other end is connected to the counter-tension rod; the elastic element is used to drive the counter-tension rod to move toward the initial position, characterized in that... The servo tensioner with the return wire function further comprises: two symmetrically arranged conveying belts, a conveying channel being formed between the two conveying belts and used for the enameled wire to pass through and be straightened; a driving mechanism arranged on the base plate and in transmission connection with one or two of the conveying belts, the driving mechanism being used to drive the two conveying belts to rotate in opposite directions so as to drive the enameled wire in the conveying channel to move towards or away from the counter-tension rod; wherein the rotation track of the counter-tension rod further comprises a return wire position between the initial position and the wire feeding position, when the counter-tension rod swings from the initial position towards the wire feeding position and swings to the wire feeding position or beyond the wire feeding position, the driving mechanism drives the enameled wire in the conveying channel to move towards the counter-tension rod; when the counter-tension rod swings towards the initial position and swings to the return wire position or between the return wire position and the initial position, the driving mechanism drives the enameled wire in the conveying channel to move away from the counter-tension rod.
2. The servo-tensioner with rethreading function according to claim 1, characterized in that, The driving mechanism comprises: two symmetrically arranged pulley sets, each pulley set comprising at least two pulleys rotatably arranged on the base plate, the two conveying belts being respectively corresponding to the two pulley sets, the conveying belts being in transmission connection with the pulleys of the corresponding pulley sets; a rotation driving member arranged on the base plate and in transmission connection with any pulley of one or two of the pulley sets, the rotation driving member being used to drive the pulleys to rotate, the pulleys driving the corresponding conveying belts to rotate.
3. The servo-tensioner with back-taping function according to claim 2, characterized in that, The at least two pulleys of the same pulley set are arranged at equal intervals on the same straight line, so that the conveying channel is arranged in extension along the straight line.
4. The servo-tensioner with rethreading function according to any one of claims 1 to 3, characterized in that, The base plate is provided with a wire passing hole coaxially arranged on the wire feeding side of the wire winding state of the conveying channel and in communication with the conveying channel, the wire passing hole being used for the enameled wire to pass through.
5. The servo-tensioner with back-tie function according to claim 4, characterized in that, The base plate is further provided with a wool felt assembly, the wool felt assembly being provided with a cleaning channel coaxially arranged on the wire feeding side of the wire winding state of the conveying channel and in communication with the wire passing hole and the conveying channel, the cleaning channel being used for the enameled wire to pass through.
6. The servo-tensioner with back-winding function according to claim 5, characterized in that, The wire passing hole is provided with two wire passing holes respectively on the wire feeding side of the wire winding state of the cleaning channel and the conveying channel.