CN215592154U - Drip irrigation zone production facility based on sectional type PID control mode - Google Patents
Drip irrigation zone production facility based on sectional type PID control mode Download PDFInfo
- Publication number
- CN215592154U CN215592154U CN202121714660.8U CN202121714660U CN215592154U CN 215592154 U CN215592154 U CN 215592154U CN 202121714660 U CN202121714660 U CN 202121714660U CN 215592154 U CN215592154 U CN 215592154U
- Authority
- CN
- China
- Prior art keywords
- tension
- pid
- roll diameter
- sensor
- drip irrigation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses drip irrigation tape production equipment based on a sectional PID control mode, which comprises a winding shaft and a tape guide roller, wherein a tension automatic control device is arranged, the tension automatic control device comprises a tension sensor, a roll diameter measuring sensor, a control motor and a PID controller, wherein the PID controller is internally provided with control parameters, the control parameters comprise a plurality of sections of PID adjusting intervals and tension slope curves, a tension sensor is arranged on the guide belt roller and measures tension signals borne by the drip irrigation tape, a roll diameter measuring sensor is arranged on one side of the winding shaft and measures roll diameter signals of the drip irrigation tape wound on the winding shaft, the tension sensor and the roll diameter measuring sensor are both communicated with a signal input end of a PID controller, a control motor is communicated with a signal output end of the PID controller, and the output frequency of the drip irrigation tape winder is adjusted according to the control instruction of the PID controller, and the problems of high labor intensity and poor winding stability of the existing drip irrigation tape winder are solved by using the device.
Description
Technical Field
The utility model relates to drip irrigation tape production equipment based on a sectional PID control mode.
Background
The drip irrigation tape is a thin-wall, hollow and tubular polyethylene irrigation equipment, one side of its pipe wall is equipped with disposable pressed labyrinth flow channel, its cross-section is irregular in shape, and the thickness and roughness of two sides of pipe wall are different, and its texture is soft and slightly elastic, and it is winded into roll by adopting multi-turn and laminated mode. Due to the special attribute, the stress factor of the product in the winding process is complex, the control precision requirement on the winding tension is high, according to the product standard, the appearance of the rolled product is a regular cylinder, the roll diameter exceeds the specified range, the end surface diameter is inconsistent, the internal and external tightness is different or the surface is not flat and meets the requirement, the irregular film roll appearance not only influences the normal operation of the automatic packaging line, but also causes the outer ring product to fall off in the laying process and be wound on the unwinding shaft to influence the sowing progress.
At present, the drip irrigation tape winding machine adopts a torque motor as power, when the winding diameter and the weight of a product are gradually increased, the rotating speed of the motor is gradually reduced, the output voltage of the controller needs to be manually adjusted to carry out torque compensation, the drip irrigation tape is produced in one piece in about 20 minutes, in order to keep proper tension, an operator needs to adjust the tension of a product for more than 3 times, one operator simultaneously considers 8 rolling stations, the tension adjustment times of each shift reach more than 100 times, the mental stress and the labor intensity are large, the centralized control of equipment is not facilitated, meanwhile, the drip irrigation tape has a unique tension change rule in the winding process, if the motor is started, the motor needs to run in a high-speed low-tension mode, products accumulated on the ground are quickly wound into a coil, then the motor runs in a low-speed constant-tension mode, the rotating speed difference of the front motor and the rear motor reaches about 1200r/min, and if the rotating speed is not well controlled, the drip irrigation tape is easy to be dragged and deformed or damaged. In addition, when the staff carries out the quality control operation, can exert reverse moment to the product and force the rolling axle to stop rotatory, this kind of frequent external disturbance will lead to rolling tension to change on a large scale, disturbs the stability of system, influences the product rolling effect. The simple closed-loop control mode that constitutes by single feedback volume can not be fine handles similar problem, simultaneously, according to having now to know, the tension of moving object is because the object has the speed difference in length direction, and then makes the different parts of material produce relative displacement (or deformation) and produce the internal stress that exists in the material inside, and this kind of internal stress can be calculated according to Hooke's law and is obtained, promptly:
in the formula: f: tension force
E modulus of elasticity of the strip
Cross section area of strip
Distance between reel and preceding unit
Linear velocity V
As can be seen from the above, the velocity fluctuation is the most fundamental cause of the tension fluctuation, and thus the tension control problem is substantially the problem of the constant velocity control.
Based on the analysis, the application designs drip irrigation tape production equipment based on a sectional type PID control mode.
Disclosure of Invention
In order to solve the problem, the application provides a drip irrigation zone production facility based on sectional type PID control mode, utilizes this equipment to solve the problem that there is big and rolling poor stability of personnel intensity of labour in current drip irrigation zone rolling machine.
The utility model provides drip irrigation tape production equipment based on a sectional PID control mode, which comprises a winding shaft 3 and a tape guide roller 2 and is characterized in that a tension automatic control device is arranged, the tension automatic control device comprises a tension sensor 4, a roll diameter measuring sensor 5, a control motor and a PID controller 6, the PID controller 6 is internally provided with control parameters, the control parameters comprise a plurality of sections of PID adjusting intervals and tension slope curves, the tension sensor 4 is arranged on the tape guide roller 2 and is used for measuring tension signals borne by a drip irrigation tape 9 on the tape guide roller 2, the roll diameter measuring sensor 5 is arranged on one side of the winding shaft 3 and is used for measuring roll diameter signals of the drip irrigation tape 9 wound on the winding shaft 3, the tension sensor 4 and the roll diameter measuring sensor 5 are both communicated with a signal input end of the PID controller 6, the control motor is communicated with a signal output end of the PID controller 6, the output frequency of the control motor comprises a basic frequency and an adjusting frequency, the basic frequency is determined by the PID controller 6 according to the roll diameter signal collected by the roll diameter measuring sensor 5, the adjusting frequency is determined by the roll diameter measuring sensor 5 and the tension sensor 4 together, and the ratio of the adjusting frequency to the basic frequency determines the output frequency of the control motor.
As the preferred scheme of the application, the multiple sections of PID adjusting intervals correspond to different PID switching points respectively, and a tension given value is arranged in each group of PID adjusting intervals.
As a preferred embodiment of the present application, the adjusting frequency is adjusted by the roll diameter measuring sensor 5 and the tension sensor 4, and specifically includes: the PID controller 6 selects a corresponding PID switching point according to the roll diameter signal acquired by the roll diameter measuring sensor 5 and enters a corresponding PID adjusting interval, then calculates a tension set value in the current PID adjusting interval by using the roll diameter signal and a tension slope curve, and meanwhile, the PID controller 6 acquires a tension signal acquired by the tension sensor 4, compares the tension signal with the tension set value in the current PID adjusting interval to judge the current tension of the drip irrigation tape 9 and calculates the adjusting frequency by using the current PID adjusting interval.
As a preferred embodiment of the present application, the tension slope curve is a relation curve between a roll diameter and tension, and a value of the tension set value moves on the tension slope curve.
As a preferred embodiment of the present application, the tension sensor 4 is a swing link type tension sensor, a flange type tension sensor or a seat type tension sensor; and/or the roll diameter measuring sensor 5 adopts an ultrasonic sensor.
As a preferred solution of the present application, the control motor comprises a vector frequency converter 8 and a reduction motor 7.
Compared with the prior art, the application has the advantages that:
(1) the operation is simple and convenient, the whole winding process of the drip irrigation tape 9 is automatically controlled in a closed loop mode, the tension is kept to run according to a certain tension slope curve in the winding process, manual adjustment of workers is not needed, the labor intensity of the workers is reduced, and the automation level of equipment is also improved;
(2) the tension sensor 4 and the roll diameter measuring sensor 5 are used as signal feedback units, so that the output frequency of the speed reducing motor 7 can be adjusted in a targeted manner by utilizing signals fed back by the tension sensor 4 and the roll diameter measuring sensor 5 in real time, the stability of the drip irrigation tape production equipment is improved, meanwhile, a sectional PID control mode is adopted, the control system is stably transited from a high-speed low-tension mode to a low-speed constant-tension mode, and the condition that the drip irrigation tape 9 is dragged, deformed or damaged due to abrupt change of the rotating speed is avoided.
(3) The tension feedback quantity can bear the large-amplitude interference applied by the outside, the rotating speed of the motor keeps constant or tends to be stable in a short time, namely the anti-interference performance of a closed-loop control system consisting of the tension sensor 4, the roll diameter measuring sensor 5, the vector frequency converter 8, the speed reducing motor 7 and the PID controller 6 is strong;
(4) the tension given value can change according to a tension slope curve, so that not only can the stable transition of the speed reducing motor 7 between high and low rotating speeds be realized, but also the internal and external tightness is moderate when the drip irrigation tape 9 is wound, the surface and two side end faces of the film roll are smooth, the standardization of the product appearance is realized, and the condition that the surface layer product of the film roll loosens and falls off in the laying process is also obviously improved;
(5) various sensors and control methods are comprehensively applied, and the automation degree is high.
Drawings
FIG. 1 is a schematic structural view of a drip irrigation tape production device based on a sectional PID control mode according to an embodiment of the utility model.
Fig. 2 is a control flow chart of the tension self-control device according to the embodiment of the utility model.
Reference numerals
The device comprises a frame 1, a tape guide roller 2, a winding shaft 3, a tension sensor 4, a roll diameter measuring sensor 5, a PID controller 6, a speed reducing motor 7, a vector frequency converter 8 and a drip irrigation tape 9.
Detailed Description
The embodiment provides a drip irrigation tape production device based on a sectional PID control mode, referring to fig. 1, the device comprises a winding shaft 3, a tape guide roller 2 and a tension automatic control device, in the embodiment, the winding shaft 3 and the tape guide roller 2 are both fixed on one side of a frame 1, the tension automatic control device comprises a PID closed loop control system based on the sectional PID control mode, which is composed of a tension sensor 4, a roll diameter measuring sensor 5, a control motor and a PID controller 6, in the embodiment, the control motor comprises a vector frequency converter 8 and a deceleration motor 7, meanwhile, in the embodiment, the PID controller 6 is internally provided with control parameters, the control parameters comprise a plurality of groups of PID adjusting intervals, a tension slope curve, an empty roll diameter, a full roll diameter, a maximum linear speed and other parameters, the plurality of groups of PID adjusting intervals are respectively corresponding to different PID switching points, and a tension given value is arranged in each group of PID adjusting intervals, meanwhile, each group of PID adjustment intervals is provided with an independent adjustment parameter, in this embodiment, it is preferable that the PID switching point is a roll diameter value, which may be a point value or an interval value, and at present, the roll diameter value is 7cm at the minimum and 50cm at the maximum, and the corresponding roll diameter signal is 0-10V or 4-20mA, so that this embodiment can select a plurality of different intervals as required, for example, the range of the roll diameter of 0-10cm is set as PID switching point a, the range of the roll diameter of 10-20cm is set as switching point B, the range of the roll diameter of 20-40cm is set as PID switching point C, and the range of the roll diameter of 40-50cm is set as PID switching point D.
In this embodiment, the tension slope curve is a relationship curve between the roll diameter and the tension summarized in a plurality of tests and daily experience, and meanwhile, in this embodiment, an inverse relationship exists between the tension adjustment amount and the roll diameter through experimental study, specifically:
the control method of the PID controller 6 follows the formula:
ΔU＝kpen+(1/ki)×f(∑en)+kdf(en-en-1)
wherein: delta U: adjustment amount of PID controller 6
en: error value of nth sampling time
kp: coefficient of scale for nth sampling time
ki: integral term coefficient of nth sampling time
kd: coefficient of differential term at nth sampling time
f(∑en) Integral term function
f(en-en-1): a derivative term function.
The PID controller 6 typically comprises kp、ki、kdThe adjustment of three control parameters is found in the actual debugging process: in the process of controlling the tension of the whole machine, the tension can be ensured to be stable as long as the proper error adjusting speed exists, and k is controlled in the processdIs generally set to zero, and kiWith respect to the accumulated value of the error collected over a certain period, a suitable kiHas little influence on the control result under the condition of changing the coil diameter, and only has kpThe error value is related to the collected error value and has a large influence on the control result, so that the error adjustment amount at a certain moment can be simplified into the following mathematical model:
△U≈kpen；
wherein:
delta U: adjustment amount of PID controller 6
en: error value of nth sampling time
kp: coefficient of scale for nth sampling time
Because: delta U is equal to KIΔ V/. pi.D, so: k is a radical ofpen＝KI△V/πD。
Wherein:
KI: overall coefficient of mass, including transmission ratio
Δ V: linear velocity adjustment
D: the diameter of the driven object.
We can derive from the above formula: k is a radical ofp0en＝KI△V/πD0，kp1en＝KI△V/πD1Further, we can derive two formulas: k is a radical ofp0/kp1＝D1/D0And kp1＝kp0*D0/D1We have found that K is inversely proportional to the coil diameter, i.e., the tension slope curve is an inversely proportional function.
When the coil diameter is small, the tension can be properly adjusted to be larger when the coil diameter is actually used; when the roll diameter is large, the tension can be properly adjusted to be smaller, so that the effect of tightening the inside and loosening the outside of the whole film roll can be achieved.
The tension sensor 4 is arranged on the tape guide roller 2 and used for measuring tension signals borne by the drip irrigation tape 9 on the tape guide roller 2, preferably, three tape guide rollers 2 are arranged in the embodiment, the tension sensor 4 is arranged on the tape guide roller 2 positioned in the middle, the roll diameter measuring sensor 5 is arranged on the frame 1 and positioned on one side of the winding shaft 3 and used for measuring roll diameter signals of the drip irrigation tape 9 wound on the winding shaft 3, the tension sensor 4 and the roll diameter measuring sensor 5 are both communicated with the signal input end of the PID controller 6 to form a double feedback channel, the vector frequency converter 8 is communicated with the signal output end of the PID controller 6 and adjusts the output rotating speed of the speed reducing motor 7 according to the control instruction of the PID controller 6, in the embodiment, the output frequency of the speed reducing motor 7 comprises a basic frequency and an adjusting frequency, the basic frequency is determined by the PID controller 6 according to the initial frequency adjustment of the roll diameter signals collected by the roll diameter measuring sensor 5, specifically, when the collected roll diameter signal is small, the initial frequency is adjusted to be large, when the collected roll diameter signal is large, the initial frequency is adjusted to be small, and the adjusted initial frequency is the basic frequency, in this embodiment, the relationship between the initial frequency and the roll diameter signal or the adjustment amount required by the initial frequency can be obtained through multiple tests, and is preset in the PID controller 6 in advance according to needs, and the adjustment frequency is determined by the roll diameter measurement sensor 5 and the tension sensor 4, specifically, the PID controller 6 selects the corresponding PID switching point according to the roll diameter signal collected by the roll diameter measurement sensor 5 and enters the corresponding PID adjustment interval, for example, when the collected roll diameter signal is 5.0V, the range of the roll diameter interval of 20-40cm is selected as the PID switching point and enters the PID adjustment interval corresponding to the PID switching point, and then the roll diameter signal and the tension slope curve are used to calculate the tension set value in the current PID adjustment interval, in this embodiment, the method for determining the tension set value includes: obtaining the slope of the tension slope curve according to the current measured roll diameter signal (roll diameter value), then obtaining the tension value, finally adding the tension value and the given initial value of the tension to obtain the given tension value in the current PID adjusting interval, meanwhile, the PID controller 6 obtains the tension signal collected by the tension sensor 4, converting the tension signal into the tension value and comparing the tension value with the obtained given tension value, referring to FIG. 2, when the real-time measured tension value is larger than the given tension value, it shows that the current tension of the drip irrigation belt 9 is larger, and the output frequency of the decelerating motor 7 needs to be reduced, therefore, the PID controller 6 calculates and generates the adjusting frequency through the current PID adjusting interval, and uses the ratio relation between the adjusting frequency and the basic frequency to further generate the output frequency for reducing the rotating speed of the decelerating motor 7, when the real-time measured tension value is smaller than the given tension value, the current tension of the drip irrigation tape 9 is small, and the output frequency of the speed reducing motor 7 needs to be increased, so that the PID controller 6 calculates and generates the adjusting frequency according to the current PID adjusting interval, and the output frequency for increasing the rotating speed of the speed reducing motor 7 is generated by utilizing the ratio of the adjusting frequency to the basic frequency; in summary, in this embodiment, the roll diameter signal collected by the roll diameter measuring sensor 5 is mainly used to determine the fundamental frequency and select the corresponding PID adjusting interval, so that the speed reduction motor 7 can smoothly transition between high and low speeds, and the tension sensor 4 is used as a negative feedback unit to continuously correct and adjust the current tension applied to the drip irrigation tape 9 by using the given tension value as the base value until the required tension is met or reached, thereby ensuring that the tension meets the required requirements.
In this embodiment, the tension sensor 4 is a rocker type tension sensor, a flange type tension sensor, or a seat type tension sensor, and in this embodiment, it is preferable that the tension sensor 4 is a rocker type tension sensor 4, and the rocker type tension sensor 4 is small in size and easy to mount.
In this embodiment, the roll diameter measuring sensor 5 adopts an ultrasonic sensor, and in this embodiment, the ultrasonic sensor is used as a feedback unit of the roll diameter signal, so that the acquisition precision of the roll diameter signal can be improved.
In the embodiment, the speed reducing motor 7 is used as power, and the vector frequency converter 8 is used as a core control unit, so that the control precision of the control system can be improved.
When the device is used, the output frequency of the PID controller 6 is divided into a basic frequency and an adjusting frequency, wherein the basic frequency is the main body of the output frequency, and the basic frequency determines the main variation curve of the winding tension; the adjusting frequency plays a role in correcting the output frequency of a specific link, when in specific use, the tension sensor 4 and the roll diameter measuring sensor 5 form a double feedback channel which respectively measures the tension signal borne by the drip irrigation tape 9 and the roll diameter signal of the drip irrigation tape 9 on the winding shaft 3 in real time and respectively transmits the collected tension signal and the collected roll diameter signal to the PID controller 6, the PID controller 6 adjusts the initial frequency according to the roll diameter signal collected by the roll diameter measuring sensor 5 so as to output the basic frequency, meanwhile, the PID controller 6 selects a corresponding PID switching point according to the roll diameter signal collected by the roll diameter measuring sensor 5 and enters a corresponding PID adjusting interval, the tension set value borne by the drip irrigation tape 9 in the PID adjusting interval is obtained by utilizing the relation between the currently collected roll diameter signal and a tension slope curve, and then the tension signal collected by the tension sensor 4 is compared with the tension set value to judge the currently borne by the drip irrigation tape 9 The force magnitude and the current PID adjusting interval in the PID controller 6 are utilized to calculate the adjusting frequency, and finally the output frequency for adjusting the rotating speed of the speed reducing motor 7 is generated by utilizing the ratio between the adjusting frequency and the basic frequency, namely in the embodiment, the corresponding PID adjusting interval can be selected according to the roll diameter signal, and the position of the given tension value on the tension slope curve can be determined by utilizing the roll diameter signal, so that the stable transition of the speed reducing motor 7 between high and low rotating speeds is realized, the tension signal plays a role in stabilizing the output of the controller, and the problem of constant speed control of the speed reducing motor 7 is realized.
In conclusion, the analysis shows that the drip irrigation tape production equipment in the embodiment is simple and convenient in structure and high in automation degree, and the tension sensor 4 and the roll diameter measuring sensor 5 can be used for realizing the stable transition of a control system from a high-speed low-tension mode to a low-speed constant-tension mode in actual use, so that the phenomenon that the drip irrigation tape 9 is dragged, deformed or damaged easily due to abrupt change of the rotating speed is avoided, and the anti-interference performance and the stability of the system are improved.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and describing specific structures and features has not been set forth herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the present invention, several modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of protection claimed in the present application shall be subject to the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A drip irrigation tape production device based on a sectional type PID control mode comprises a winding shaft (3) and a tape guide roller (2), and is characterized in that a tension automatic control device is arranged, the tension automatic control device comprises a tension sensor (4), a roll diameter measuring sensor (5), a control motor and a PID controller (6), control parameters are arranged in the PID controller (6), the control parameters comprise a plurality of sections of PID adjusting intervals and tension slope curves, the tension sensor (4) is arranged on the tape guide roller (2) and is used for measuring tension signals borne by a drip irrigation tape (9) on the tape guide roller (2), the roll diameter measuring sensor (5) is arranged on one side of the winding shaft (3) and is used for measuring roll diameter signals of the drip irrigation tape (9) wound on the winding shaft (3), and the tension sensor (4) and the roll diameter measuring sensor (5) are both communicated with the signal input end of the PID controller (6), the control motor is communicated with a signal output end of the PID controller (6), the output frequency of the control motor comprises a basic frequency and an adjusting frequency, the basic frequency is determined by the PID controller (6) according to a roll diameter signal collected by the roll diameter measuring sensor (5), the adjusting frequency is determined by the roll diameter measuring sensor (5) and the tension sensor (4) together, and the ratio of the adjusting frequency to the basic frequency determines the output frequency of the control motor.
2. The apparatus according to claim 1, wherein the PID control sections correspond to different PID switching points, and a given tension value is provided in each PID control section.
3. The device for producing drip irrigation tape according to claim 2, wherein the adjustment frequency is adjusted by a roll diameter measuring sensor (5) and a tension sensor (4) together, and comprises: the PID controller (6) selects a corresponding PID switching point according to a roll diameter signal collected by the roll diameter measuring sensor (5) and enters a corresponding PID adjusting interval, then obtains a tension set value in the current PID adjusting interval by using the roll diameter signal and a tension slope curve, and meanwhile, the PID controller (6) obtains a tension signal collected by the tension sensor (4), compares the tension signal with the obtained tension set value to judge the current tension of the drip irrigation tape (9), and calculates the adjusting frequency by using the current PID adjusting interval.
4. The apparatus according to claim 2 or 3, wherein said tension slope curve is a curve of the relationship between the roll diameter and the tension, and the value of the given tension value is shifted on the tension slope curve.
5. The device for producing the drip irrigation tape based on the segmented PID control manner according to any one of claims 1 to 3, wherein the tension sensor (4) adopts a swing rod type tension sensor, a flange type tension sensor or a seat type tension sensor; and/or the roll diameter measuring sensor (5) adopts an ultrasonic sensor.
6. The segmented PID control mode-based drip irrigation tape production equipment according to claim 4, wherein the tension sensor (4) adopts a swing rod type tension sensor, a flange type tension sensor or a seat type tension sensor; and/or the roll diameter measuring sensor (5) adopts an ultrasonic sensor.
7. The device for producing drip irrigation tape based on segmented PID control according to any one of claims 1 to 3, wherein the control motor comprises a vector frequency converter (8) and a reduction motor (7).
8. The apparatus for producing drip irrigation tape based on segmented PID control according to claim 4, wherein the control motor comprises a vector frequency converter (8) and a speed reduction motor (7).
9. The apparatus for producing drip irrigation tape based on segmented PID control according to claim 5, wherein the control motor comprises a vector frequency converter (8) and a speed reduction motor (7).
10. The apparatus for producing drip irrigation tape based on segmented PID control according to claim 6, wherein the control motor comprises a vector frequency converter (8) and a speed reduction motor (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121714660.8U CN215592154U (en) | 2021-07-26 | 2021-07-26 | Drip irrigation zone production facility based on sectional type PID control mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121714660.8U CN215592154U (en) | 2021-07-26 | 2021-07-26 | Drip irrigation zone production facility based on sectional type PID control mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215592154U true CN215592154U (en) | 2022-01-21 |
Family
ID=79879192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121714660.8U Active CN215592154U (en) | 2021-07-26 | 2021-07-26 | Drip irrigation zone production facility based on sectional type PID control mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215592154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426222A (en) * | 2022-01-25 | 2022-05-03 | 无锡市鼎麒新材料科技有限公司 | Real-time torque calculation method for constant tension unwinding of stretched warp yarns |
| CN115520701A (en) * | 2022-10-25 | 2022-12-27 | 浙江御辰东智能科技有限公司 | Coil diameter measuring method and device for self-adaptively eliminating installation error |
-
2021
- 2021-07-26 CN CN202121714660.8U patent/CN215592154U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426222A (en) * | 2022-01-25 | 2022-05-03 | 无锡市鼎麒新材料科技有限公司 | Real-time torque calculation method for constant tension unwinding of stretched warp yarns |
| CN114426222B (en) * | 2022-01-25 | 2024-04-09 | 无锡市鼎麒新材料科技有限公司 | Real-time torque calculation method for constant-tension unwinding of widened warp yarns |
| CN115520701A (en) * | 2022-10-25 | 2022-12-27 | 浙江御辰东智能科技有限公司 | Coil diameter measuring method and device for self-adaptively eliminating installation error |
| CN115520701B (en) * | 2022-10-25 | 2024-04-12 | 浙江御辰东智能科技有限公司 | Roll diameter measuring method and device capable of adaptively eliminating installation errors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215592154U (en) | Drip irrigation zone production facility based on sectional type PID control mode | |
| MXPA04011706A (en) | Consumer product winding control and adjustment. | |
| CN103193102A (en) | Floating roll device for film production device | |
| US4708301A (en) | Take-out/take-up tension control apparatus | |
| CN105197685A (en) | Tension control method, device and system of rolling and unrolling equipment | |
| CN101308363A (en) | Beam dyeing machine cloth velocity-tension coordinating control method | |
| CN103935811A (en) | Online roll-to-roll tension control system for flexible thin-film solar cell | |
| CN210763411U (en) | Winding mechanism for controlling and precisely measuring winding diameter at equal intervals | |
| CN112919216B (en) | Film dividing and cutting machine tension adjusting method based on discrete PID and taper tension control | |
| JPS59114251A (en) | Rewind sheet winder | |
| CN103086178A (en) | Winding machine and method for controlling winding of flexible materials | |
| CN203158889U (en) | Floating roller device of thin film production equipment | |
| CN107988738B (en) | Active unwinding system and method for yarn dyeing machine | |
| CN219424808U (en) | Lithium battery does not have pendulum roller diaphragm coating machine | |
| CN103112740A (en) | Winding machine and method of controlling winding of flexible material | |
| CN101583477B (en) | Method for the operation of a production plant to produce an extrudate | |
| CN211687597U (en) | Flexible winding coating film electrical control system | |
| CN205555656U (en) | Constant tension control system based on auto perching machine | |
| CN114604668A (en) | Tire building machine crown band strip unwinding tension control device, method, device and program product | |
| CN110306373B (en) | Basket type rope forming machine variable speed unwinding process dynamic tension control method | |
| CN110697477B (en) | Deviation-rectifying embossing rewinding machine for aluminum foil paper production | |
| CN112123744A (en) | Strip winding device, strip winding method and numerical control winding machine | |
| EP2905246A1 (en) | Method and system for adjusting tension during winding for a machine with a winding station, computer program implementing said method and machine comprising winding station | |
| CN104594101A (en) | Threading tape shaping device and method | |
| CN114212591B (en) | Constant-tension integrated deviation correcting mechanism for amorphous and silicon steel winding machine and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |