Braid tension adjusting system in intelligent braid detection equipment
By introducing tension feedback and pre-adjustment devices into the webbing detection equipment, real-time adjustment of different webbing tensions is achieved, tension instability is solved, detection efficiency and accuracy are improved, and different webbing types are adapted to ensure webbing detection Stability and efficiency.
Patent Information
- Application Number
- CN202421043077.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
When existing webbing detection equipment adapts to different types of webbing, the tension adjustment is inconvenient, resulting in unstable operation, affecting the efficiency and accuracy of defect detection.
A webbing tension adjustment system in intelligent webbing detection equipment is designed, using tension feedback adjustment device and tension pre-adjustment device. Through the tension sensor and feedback control unit, the webbing tension is adjusted in real time to ensure that the tension is within the appropriate range, combining the fixing and The use of variable speed drive shafts enables precise control.
It improves the operating stability and defect detection efficiency of webbing detection equipment, adapts to different types of webbing, makes operation more convenient, and significantly improves the defect detection rate and position accuracy.
Smart Images
Figure CN222273623U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a webbing detection device, in particular to a webbing tension regulating system in an intelligent webbing detection device. Background Art
[0002] Webbing is a narrow or tubular fabric made of various yarns. During the production process, the fabric inevitably has various defects. Webbing defect detection is one of the key links affecting the quality of the webbing. Webbing detection equipment is used for defect detection, which includes a belt supply mechanism, a webbing guide mechanism, a second transmission group, a visual inspection device, a first transmission group, and a webbing storage device. The webbing runs along the above mechanisms in sequence according to its direction, and a certain tension needs to be maintained during the running process. The webbing detection equipment in the prior art has the following shortcomings:
[0003] First of all, different types of webbing need to be adapted to different tensions. The same type of webbing with differences in width and elasticity also needs to be adapted to different tensions. The adjustment of tension is related to the speed of each transmission motor. Therefore, using different types of webbing requires re-setting the motor speed and tension values, which makes operation inconvenient and inefficient.
[0004] Secondly, due to the long and tense characteristics of the webbing, when it passes through multiple components on the testing equipment, the tension is uneven because it is difficult for each transmission component to move in unison, and the tension condition during the front transmission will affect the tension condition during the rear transmission, resulting in instability in the operation process.
[0005] Finally, due to the instability of the tension value of the entire line, during the visual inspection process, it is easy for the tension to fluctuate, resulting in a low defect detection rate or a deviation between the defect position indication point and the actual defect position. Summary of the invention
[0006] The purpose of the utility model is to provide a webbing tension adjustment system in an intelligent webbing detection device which can adapt to different types of webbings, improve operating stability, improve defect detection effect, and is easy to operate based on the deficiencies of the prior art.
[0007] The purpose of the utility model is achieved through the following ways:
[0008] The webbing tension adjustment system in the intelligent webbing detection equipment includes a webbing supply mechanism, a second transmission group, a visual detection device, a first transmission group and a webbing storage device. The webbing runs along the above-mentioned mechanisms in sequence. The webbing supply mechanism includes a driving power shaft and a webbing guide mechanism. The second transmission group has a driving shaft M2, and the first transmission group has a driving shaft M1. The key points are: it also includes a tension feedback adjustment device, which includes a tension sensing device and a feedback control unit. The tension sensing device includes a webbing winding shaft and a tension sensing device installed on the webbing winding shaft, which is installed at the webbing belt position between the driving shaft M1 and the driving shaft M2, wherein the rotation speed of one of the driving shaft M1 and the driving shaft M2 is a set fixed value, and the other driving shaft is a variable speed driving shaft. The signal output end of the tension sensing device is connected to the feedback control unit, and the signal control end of the feedback control unit is connected to the power source end of the variable speed driving shaft.
[0009] In the tension feedback adjustment device, a tension value provided by a tension sensor device wound around the webbing is provided with a reference tension range value in the feedback control unit. When the tension value provided by the tension sensor device is higher than the upper limit of the range value, it indicates that the webbing tension is too large. At this time, the power source of the variable speed drive shaft is controlled by the feedback control unit, thereby increasing the speed of the variable speed drive shaft to increase the speed at which the webbing is transmitted to the tension sensor device, thereby reducing the webbing tension; when the tension value provided by the tension sensor device is lower than the lower limit of the range value, it indicates that the webbing tension is too small. At this time, the speed of the variable speed drive shaft is controlled to decrease by the feedback control unit to reduce the speed at which the webbing is transmitted to the tension sensor device, thereby increasing the webbing tension.
[0010] Therefore, the utility model has the following technical effects: 1. The feedback control unit can effectively feedback the tension status of the webbing and make adjustments, so it is suitable for different types of webbings, as well as the same type of webbings with different widths and elasticity. Through intelligent feedback signal control, the operation is convenient, the efficiency is greatly improved, and the tape running speed can reach 3m / s; 2. One side is a fixed speed drive shaft and the other side is a variable speed drive shaft, so that the feedback signal can be controlled more accurately; 3. Under the condition of stable tension value, the defect point detection rate in visual inspection is effectively improved, and the deviation between the defect position indication point and the actual defect position is effectively reduced.
[0011] The utility model can be further specified as follows:
[0012] The tension sensing device is a tension sensor P1, and its sensing signal output end is connected to the feedback control unit.
[0013] Or:
[0014] The tension sensing device is a motion balancing device that can drive the webbing to wind around an axis. A sensor encoder is provided on the motion balancing device, and a signal output end of the sensor encoder is connected to a feedback control unit.
[0015] In this way, the webbing shaft drives the tensioned webbing to move back and forth freely along with the motion balancing device. When the webbing tension is too large, the reciprocating motion amplitude decreases, and when the webbing tension is insufficient, the reciprocating motion amplitude increases. The feedback control unit compares and judges based on the received sensor encoder signal with the reference value or reference range value set by itself, and triggers the control of the variable speed drive shaft to increase or decrease speed according to the situation, thereby adjusting the tension value on the webbing shaft.
[0016] The motion balancing device includes an upright balancing track, a slider installed in the balancing track, and a counterweight shaft fixed to one side of the slider; the sensor encoder is arranged on the balancing track; the webbing is fixedly connected to the slider around the axis and is perpendicular to the extension direction of the balancing track.
[0017] Or: the motion balancing device includes a tensioning arm, a rotating shaft that crosses and is fixedly connected to the tensioning arm, and an angle detection device connected to the rotating shaft; the connection point between the tensioning arm and the rotating shaft is a fulcrum, and driven by the rotation of the rotating shaft, the tensioning arm can swing up and down with the fulcrum as the center; the webbing is installed around the shaft at the front end of the tensioning arm; and a counterweight is provided on the front side of the fulcrum where the tensioning arm is connected to the rotating shaft.
[0018] The utility model can be further specified as follows:
[0019] It also includes a pre-tension adjustment device, which is installed at the webbing webbing position between the tape supply mechanism and the second transmission group, and is located below the drive shaft M2 in the second transmission group, 0.3-1.5m below the horizontal line where the drive shaft M2 is located. The pre-tension adjustment device includes a tensioning mechanism, an upper limit sensor unit, a lower limit sensor unit and a pre-control unit. The tensioning mechanism includes a webbing support shaft, and the webbing is wound around the webbing support shaft in a tensioned state. The upper limit sensor unit and the lower limit sensor unit are arranged in the tensioning mechanism or the pre-control unit, and the signal control end of the pre-control unit is connected to the source end of the driving power shaft where the tape supply mechanism is located or the power source end of the driving shaft M2.
[0020] The tension pre-adjustment device is installed at the webbing belt position between the belt supply mechanism and the second transmission group, which means that after the belt passes through the belt supply mechanism, it is first wound around the tension mechanism in the tension pre-adjustment device, and then wound around the drive shaft M2 of the second transmission group. At this time, the tension pre-adjustment device is as far away from the belt supply mechanism and the second transmission group as possible, and the belt needs a longer winding process, thereby providing a longer torque winding for the belt support shaft, so as to obtain the tension sensing value more sensitively. In this way, the tension mechanism will feed back the tension condition of the belt wound on the belt support shaft to the pre-control unit. When the tension of the belt is too large, the pre-control unit triggers the power source of the belt supply mechanism or the drive shaft M2, so that the speed of the corresponding drive power shaft increases, thereby reducing the tension of the belt in the tension mechanism; when the tension of the belt is insufficient, the pre-control unit triggers the power source of the belt supply mechanism or the drive shaft M2, so that the speed of the corresponding drive power shaft decreases, and the tension of the belt in the tension mechanism is increased. When the feedback control unit controls M1, the front control unit can control M2 or the power shaft in the tape supply mechanism. If the feedback control unit controls M2, the front control unit controls the power shaft in the tape supply mechanism.
[0021] Therefore, the utility model further sets a tension pre-adjustment device on the basis of the above-mentioned tension feedback adjustment device, by setting up double tension detection, and correspondingly controlling the rotation speed of the tape supply mechanism and the first / second transmission group respectively, wherein the tension pre-adjustment is used to control the tape supply speed of the tape supply mechanism, and preliminarily adjust the tension detection at the front end of the visual detection, thereby preliminarily making the tension of the webbing after entering the second transmission group in a relatively stable state; on this basis, this tension feedback adjustment is used as a fine adjustment control to make a small adjustment to the tension of the webbing that is about to enter the visual detection device or in the visual detection device, so that the webbing in the visual detection device can obtain a more stable tension. The following technical effects are brought about: 1. Pre-tension adjustment is performed in the tape supply part, and tension feedback adjustment is performed in the visual detection part, which ensures the stability of the tension value of the entire line, thereby improving the operation stability; 2. It ensures that the subsequent tension sensor can fully realize its role, greatly improves the tension stability, and can realize tension adjustment in an automatic control manner, which is simple and convenient to operate.
[0022] The utility model can be further specified as follows:
[0023] The tape supply mechanism also includes a tape shaking mechanism. The tape guide mechanism is installed at the tape tape position between the tape guide mechanism and the second transmission group. The driving power shaft is the driving shaft M4 of the tape shaking mechanism.
[0024] Or: the tape supply mechanism also includes a tape shaking mechanism and a third transmission group, the tape guide mechanism is installed at the tape tape position between the two, wherein the third transmission group includes a servo motor and a clamping device, and the driving power shaft is a driving shaft M3 in the third transmission group driven by a servo motor.
[0025] In this way, the pre-control unit of the tension pre-adjustment device either controls the driving shaft M4 when there is only a belt shaking mechanism, or controls the rotation speed of the driving shaft M3 when a third transmission group is provided. Since the servo motor presses the webbing through the clamping device during transmission, it can provide a better webbing supply effect and solve the problem of webbing supply caused by webbing stacking. Therefore, the pre-control unit preferably controls the rotation speed of the driving shaft M3.
[0026] The tensioning mechanism can be further specifically:
[0027] The tensioning mechanism also includes a tension sensor P2 connected to the webbing support shaft, and the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the front control unit.
[0028] In this way, the tension of the webbing wound around the webbing support shaft is sensed by the tension sensor P2, and the sensing value is sent to the front control unit. The upper limit sensor unit and the lower limit sensor unit are the upper and lower limit reference values in the front control unit. If the tension exceeds the upper limit value, it is too large, and if it is lower than the lower limit value, it is too small, and the driving power shaft of the webbing supply mechanism is adjusted accordingly.
[0029] The tensioning mechanism also includes a reciprocating balancing device connected to and driving the webbing support shaft to move. The upper limit sensing unit and the lower limit sensing unit are arranged on the reciprocating balancing device, and the sensing signal output ends of the two are connected to the front control unit.
[0030] In this way, the webbing support shaft drives the tensioned webbing to freely move back and forth along with the reciprocating balance device. When the webbing tension is too large, the pressure of the webbing on the webbing support shaft around it increases, and the reciprocating motion amplitude decreases. When the set value is reached, the upper limit position sensing unit will be triggered, and a signal will be sent to the front control unit, which will trigger the power source of the tape supply mechanism to increase the speed of the driving power shaft of the tape supply mechanism, thereby increasing the tape delivery speed of the tape supply mechanism and further reducing the tension of the webbing in the tensioning mechanism. When the webbing tension is insufficient, the pressure of the webbing on the webbing support shaft around it is insufficient, and the reciprocating motion amplitude increases. When the set value is reached, the lower limit position sensing unit will be triggered, and a signal will be sent to the front control unit, which will trigger the power source of the tape supply mechanism to reduce the speed of the driving power shaft of the tape supply mechanism, thereby reducing the tape delivery speed of the tape supply mechanism and increasing the tension of the webbing in the tensioning mechanism. Since the tension is formed by the supporting pressure of the webbing on the support shaft, the pre-tension adjustment device does not adopt a pressure-sensitive type, but a reciprocating driving method, and uses the reciprocating amplitude as a judgment of the tension size, thereby ensuring that the upper and lower limits of the active tension can be stably moved and judgments can be made.
[0031] The reciprocating balancing device includes an upright balancing track, a slider installed in the balancing track, and a counterweight shaft fixed to one side of the slider; the upper limit sensing unit and the lower limit sensing unit are respectively arranged at a set distance position before and after the middle of the balancing track and at the upper or lower end position; the webbing support shaft is fixedly connected to the slider and is perpendicular to the extension direction of the balancing track.
[0032] At this time, the upper and lower limit sensing units use the installation position as the distance standard for the reciprocating amplitude of the webbing support shaft. For example, when the tension is large, it is judged whether the slider connected to the webbing support shaft has not exceeded the position of the upper limit sensing unit for more than 2 consecutive times. If the upper limit sensing unit does not detect the slider passing twice (or other set times), it is judged that the tension is too large; when the tension is small, it is also judged whether the slider has exceeded the lower limit sensing unit for more than 2 consecutive times, that is, the lower limit sensing unit detects that the slider has passed more than the set times, then it is judged that the tension is too small. The counterweight shaft is used to provide a counterweight to the slider so that the webbing can drive the slider more stably.
[0033] The reciprocating balancing device includes an upright balancing track, a slider installed in the balancing track, and a counterweight shaft fixed to one side of the slider. A reference point is set on the balancing track, and a displacement sensor is set on the slider; the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the front control unit; the webbing support shaft is fixedly connected to the slider and is perpendicular to the extension direction of the balancing track.
[0034] At this time, the displacement of the slider on the balance track is used as the judgment variable. When the displacement is too small, the upper limit value is triggered, and the tension is judged to be too large; when the displacement is too large, the lower limit value is triggered, and the tension is judged to be too small.
[0035] The reciprocating balancing device includes a tensioning arm, a rotating shaft that crosses and is fixedly connected to the tensioning arm, and an angle detection device connected to the rotating shaft; the connection point between the tensioning arm and the rotating shaft is a fulcrum, and the tensioning arm can swing up and down with the fulcrum as the center under the rotation of the rotating shaft; the webbing support shaft is installed at the front end of the tensioning arm, presenting a square frame structure; the tensioning arm is provided with a counterweight block in front of the fulcrum where it is connected to the rotating shaft; the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the front control unit, which are angle values.
[0036] At this time, driven by the webbing transmission, the front end of the tensioning arm swings up and down with the fulcrum as the center, and the swing angle is sensed by the angle detection device connected to the rotating shaft, and is judged and controlled by the front control unit; when the rotation angle is too large, the lower limit value is triggered, and the tension is judged to be too small; when the rotation angle is too small, the upper limit value is triggered, and the tension is judged to be too large.
[0037] The visual detection device is a double set of detection devices, namely a first visual detection device and a second visual detection device. The tension feedback adjustment device is either installed at the webbing belt position between the driving shaft M2 and the first visual detection device, or installed at the webbing belt position between the first visual detection device and the second visual detection device, or installed at the webbing belt position between the second visual detection device and the driving shaft M1.
[0038] The priority tension feedback adjustment device is installed at the webbing belt position between the first visual inspection device and the second visual inspection device, thereby effectively balancing the tension value between the two sets of visual inspection devices and providing more stable tension conditions for visual inspection.
[0039] A clamping wheel is arranged on the driving shaft M2.
[0040] The clamping wheel is used to press the webbing so that the webbing is kept on the rotating transmission shaft as much as possible.
[0041] In summary, the utility model provides a webbing tension adjustment system in an intelligent webbing detection device, thereby achieving the following technical effects: being able to adapt to different types of webbings; ensuring the stability of the tension value of the entire line, improving operational stability, and improving operating efficiency; improving defect detection effects, intelligent feedback adjustment, and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] Figure 1 It is a schematic diagram of the layout of the intelligent webbing detection device with a webbing tension adjustment system in Example 1 of the utility model;
[0043] Figure 2 It is a schematic diagram of the layout of the intelligent webbing detection device with a webbing tension adjustment system in Embodiment 2 of the present utility model;
[0044] Figure 3 A schematic diagram of the structure of the tension pre-adjusting device in Embodiment 2 of the present utility model; Figure 4 for Figure 3 A schematic diagram of the side structure of
[0045] Figure 5 It is a schematic diagram of the layout of the intelligent webbing detection device with a webbing tension adjustment system in the best embodiment of the utility model; Figure 6 for Figure 5 Structural schematic diagram of the medium tension pre-adjustment device;
[0046] Figure 7 The diagram is a layout diagram of another embodiment of an intelligent webbing detection device with a webbing tension adjustment system.
[0047] The utility model is further described below in conjunction with embodiments. DETAILED DESCRIPTION Example 1
[0048] Refer to the attached Figure 1 The webbing tension adjustment system in the intelligent webbing detection equipment includes a webbing supply mechanism, a second transmission group, a first visual detection device, a tension feedback adjustment device, a second visual detection device, a first transmission group and a webbing storage device. The webbing is sequentially fed along the above mechanisms. The webbing supply mechanism includes a shaking mechanism with a drive shaft M4 and a webbing guide mechanism D1. The second transmission group has a drive shaft M2, and the first transmission group has a drive shaft M1. A clamping wheel Y2 is provided on the drive shaft M2, and a clamping wheel Y1 is provided on the drive shaft M1. The clamping wheel is used to press the webbing to keep the webbing on the rotating transmission shaft as much as possible. The drive shaft M1 is equipped with a length detection encoder, so that the conveying length of the webbing can be determined by detecting the rotation angle of the drive shaft M1. Z1-Z4 is an intermediate shaft for the webbing webbing.
[0049] The tension feedback adjustment device includes a tension sensing device and a feedback control unit, wherein the tension sensing device includes a webbing winding shaft and a tension sensor P1 installed on the webbing winding shaft, the rotation speed of the drive shaft M2 is set to a set fixed value, the drive shaft M1 is a variable speed drive shaft, the signal output end of the tension sensor P1 is connected to the feedback control unit, and the signal control end of the feedback control unit is connected to the power source end of the drive shaft M1. A reference tension range value is set in the feedback control unit. When the tension value provided by the tension sensor P1 is higher than the upper limit of the range value, it means that the tension of the webbing is too large. At this time, the power source of the first transmission group is controlled by the feedback control unit to increase the speed of the drive shaft M1 to increase the speed of the webbing transmitted to the webbing winding shaft, so that the tension of the webbing decreases; when the tension value provided by the tension sensor P1 is lower than the lower limit of the range value, it means that the tension of the webbing is too small. At this time, the speed of the drive shaft M1 is controlled by the feedback control unit to decrease, so as to reduce the speed of the webbing transmitted to the webbing winding shaft, thereby increasing the tension of the webbing. The tension sensor P1 can also be replaced by a motion balancing device, the structure of which is the same as the reciprocating balancing device in embodiment 2 and the best embodiment, so the relevant content is not described here.
[0050] The parts not described in the present invention are the same as those in the prior art. Example 2
[0051] Refer to the attached Figure 2-4, a tension pre-adjustment device is added on the basis of Example 1. At this time, the tape supply mechanism also includes a tape shaking mechanism and a third transmission group, and the webbing guide mechanism D1 is installed at the webbing tape position between the two, wherein the third transmission group includes a servo motor and a clamping device Y3, and the driving power shaft is a driving shaft M3 linked by a servo motor in the third transmission group, wherein the position of the driving shaft M3 differs from the horizontal position of the driving shaft M2 of the second transmission group by no more than 20cm. The tension pre-adjustment device includes a tensioning mechanism, an upper limit sensing unit, a lower limit sensing unit and a pre-control unit, wherein the tensioning mechanism includes a webbing support shaft and a reciprocating balance device connected to and driving the webbing support shaft to move, the webbing is wound around the webbing support shaft in a tensioned state, the upper limit sensing unit and the lower limit sensing unit are arranged on the reciprocating balance device, and the induction signal output ends of the two are connected to the pre-control unit, and the signal control end of the pre-control unit is connected to the power source end of the drive shaft M3. At this time, the position point of the webbing support shaft is 1m below the horizontal line where the drive shaft M2 is located, and is located between the drive shaft M3 and the drive shaft M2. The reciprocating balancing device includes an upright balancing track 1, a slider 2 installed in the balancing track, and a counterweight shaft 3 fixed to one side of the slider. A reference point is set on the balancing track 1, and a displacement sensor is set on the slider 2; the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the front control unit; the webbing support shaft 4 is fixedly connected to the slider 2 and is perpendicular to the extension direction of the balancing track 1.
[0052] Under the unstable pulling of the webbing, the webbing support shaft 4 drives the slider to reciprocate up and down in the balance track 1, and the displacement of the slider on the balance track is used as the judgment variable. When the displacement is too small, the upper limit value is triggered, and it is judged that the tension is too large; when the displacement is too large, the lower limit value is triggered, and it is judged that the tension is too small. Based on this, the front control unit triggers the power source of the tape supply mechanism to make the drive shaft M3 increase or decrease speed according to the judgment, thereby adjusting the webbing tension.
[0053] The parts not described in this embodiment are the same as those in Embodiment 1. Best Mode
[0054] Refer to the attached Figure 5-6This embodiment is the same as the embodiment 2, both of which add a tension pre-adjustment device on the basis of the embodiment 1, that is, the tension adjustment system includes a tension pre-adjustment device and a tension feedback adjustment device. The reciprocating balance device in this embodiment includes a tension arm 5, a rotating shaft 6 that crosses and is fixedly connected to the tension arm, and an angle detection device 7 connected to the rotating shaft; the connection point between the tension arm 5 and the rotating shaft 6 is a fulcrum, and under the rotation of the rotating shaft 6, the tension arm 5 can swing up and down with the fulcrum as the center; the webbing support shaft 4 is installed at the front end of the tension arm, presenting a rectangular frame structure; the tension arm 5 is provided with a counterweight 8 at the front and rear ends of the fulcrum, and 1-3 counterweights can be configured according to demand; the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the pre-control unit, which are angle values. The angle detection device 7 includes a connecting rod 71 connected to the rotating shaft 6, a coupling 72 connecting the connecting rod, a base 73 for mounting the two, a support seat 74 for fixing the base 73, and an angle detection encoder 75 mounted on the coupling 72. The counterweight 8 can stabilize the swing of the tensioning arm 5.
[0055] Driven by the webbing transmission, the front end of the tensioning arm 5 swings up and down with the fulcrum as the center, and the swing angle is sensed by the angle detection device connected to the rotating shaft 6, and is judged and controlled by the front control unit; when the rotation angle is too large, the lower limit value is triggered, and the tension is judged to be too small; when the rotation angle is too small, the upper limit value is triggered, and the tension is judged to be too large; and the front control unit triggers and controls the power source of the third transmission group to control the speed increase or deceleration of the drive shaft M3, thereby adjusting the webbing tension. The front control unit can also control the speed increase or deceleration of the drive shaft M2 by triggering the power source of the second transmission group, thereby adjusting the webbing tension. Since this embodiment includes the content of embodiment 1, when the feedback control unit controls the drive shaft M1, the front control unit can choose to control the drive shaft M2. A limit rod 9 is set below the tensioning arm 5 to prevent the tensioning arm 5 from swinging excessively and affecting the operation of itself and other components.
[0056] In addition to the above embodiment 2 and the best embodiment, the tensioning mechanism in the tension pre-adjusting device can also be realized by driving the webbing support shaft through the tension sensor P2, that is, after the webbing comes out of the guide mechanism, it bypasses the drive shaft M3 and the webbing support shaft in sequence, and then senses the tension on the webbing support shaft according to the tension sensor, and feeds back to the pre-control unit, and the pre-control unit controls the speed of the drive shaft M3. This scheme can be another embodiment, refer to the attached Figure 7 .
[0057] The parts not described in this embodiment are the same as those in Embodiment 2.
Claims
1. A webbing tension adjustment system in an intelligent webbing detection device includes a webbing supply mechanism, a second transmission group, a visual detection device, a first transmission group, and a webbing storage device. The webbing is sequentially moved along the above mechanisms. The webbing supply mechanism includes a driving power shaft and a webbing guide mechanism. The second transmission group has a driving shaft M2, and the first transmission group has a driving shaft M1. It is characterized in that: It also includes a tension feedback adjustment device, which includes a tension sensing device and a feedback control unit. The tension sensing device includes a webbing winding shaft and a tension sensing device installed on the webbing winding shaft. The tension sensing device is installed at the webbing belt position between the drive shaft M1 and the drive shaft M2. The rotation speed of one of the drive shaft M1 and the drive shaft M2 is a set fixed value, and the other drive shaft is a variable speed drive shaft. The signal output end of the tension sensing device is connected to the feedback control unit, and the signal control end of the feedback control unit is connected to the power source end of the variable speed drive shaft.
2. The webbing tension adjustment system in the intelligent webbing detection device according to claim 1, characterized in that: The tension sensing device is a tension sensor P1, and its sensing signal output end is connected to the feedback control unit.
3. The webbing tension adjustment system in the intelligent webbing detection device according to claim 1, characterized in that: The tension sensing device is a motion balancing device that can drive the webbing to wind around an axis. A sensor encoder is provided on the motion balancing device, and a signal output end of the sensor encoder is connected to a feedback control unit.
4. The webbing tension adjustment system in the intelligent webbing detection device according to claim 1, characterized in that: The tape supply mechanism also includes a tape shaking mechanism and a third transmission group, and the tape guide mechanism is installed at the tape tape position between the two. The third transmission group includes a servo motor and a clamping device, and the driving power shaft is a driving shaft M3 in the third transmission group that is driven by a servo motor.
5. The webbing tension adjustment system in the intelligent webbing detection device according to claim 1, characterized in that: It also includes a pre-tension adjustment device, which is installed at the webbing webbing position between the tape supply mechanism and the second transmission group, and is located below the drive shaft M2 in the second transmission group, 0.3-1.5m below the horizontal line where the drive shaft M2 is located. The pre-tension adjustment device includes a tensioning mechanism, an upper limit sensor unit, a lower limit sensor unit and a pre-control unit. The tensioning mechanism includes a webbing support shaft, and the webbing is wound around the webbing support shaft in a tensioned state. The upper limit sensor unit and the lower limit sensor unit are arranged in the tensioning mechanism or the pre-control unit, and the signal control end of the pre-control unit is connected to the source end of the driving power shaft where the tape supply mechanism is located or the power source end of the driving shaft M2.
6. The webbing tension adjustment system in the intelligent webbing detection device according to claim 5, characterized in that: The tensioning mechanism also includes a tension sensor P2 connected to the webbing support shaft, and the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the front control unit.
7. The webbing tension adjustment system in the intelligent webbing detection device according to claim 5, characterized in that: The tensioning mechanism also includes a reciprocating balancing device connected to and driving the webbing support shaft to move. The upper limit sensing unit and the lower limit sensing unit are arranged on the reciprocating balancing device, and the sensing signal output ends of the two are connected to the front control unit.
8. The webbing tension adjustment system in the intelligent webbing detection device according to claim 7, characterized in that: The reciprocating balancing device includes an upright balancing track, a slider installed in the balancing track, and a counterweight shaft fixed to one side of the slider; the upper limit sensing unit and the lower limit sensing unit are respectively arranged at a set distance position before and after the middle of the balancing track and at an upper or lower end position; the webbing support shaft is fixedly connected to the slider and is perpendicular to the extension direction of the balancing track.
9. The webbing tension adjustment system in the intelligent webbing detection device according to claim 7, characterized in that: The reciprocating balancing device includes an upright balancing track, a slider installed in the balancing track, and a counterweight shaft fixed to one side of the slider. A reference point is set on the balancing track, and a displacement sensor is set on the slider; the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value set in the front control unit; the webbing support shaft is fixedly connected to the slider and is perpendicular to the extension direction of the balancing track.
10. The webbing tension adjustment system in the intelligent webbing detection device according to claim 7, characterized in that: The reciprocating balancing device includes a tensioning arm, a rotating shaft that crosses and is fixedly connected to the tensioning arm, and an angle detection device connected to the rotating shaft; the connection point between the tensioning arm and the rotating shaft is a fulcrum, and the tensioning arm can swing up and down with the fulcrum as the center under the rotation of the rotating shaft; the webbing support shaft is installed at the front end of the tensioning arm, presenting a square frame structure; a counterweight block is arranged at the middle or rear end of the tensioning arm; the upper limit sensing unit and the lower limit sensing unit are the upper limit value and the lower limit value arranged in the front control unit, which are angle values.