CN111889516A - Tension control system of coiling machine - Google Patents
Tension control system of coiling machine Download PDFInfo
- Publication number
- CN111889516A CN111889516A CN202010789820.9A CN202010789820A CN111889516A CN 111889516 A CN111889516 A CN 111889516A CN 202010789820 A CN202010789820 A CN 202010789820A CN 111889516 A CN111889516 A CN 111889516A
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- Prior art keywords
- coiling
- coiling machine
- cabinet
- tension
- control system
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- 239000011888 foil Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
- B21B37/54—Tension control; Compression control by drive motor control including coiler drive control, e.g. reversing mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
Abstract
The invention discloses a tension control system of a coiling machine, which comprises a coiling machine power distribution cabinet, a field operation cabinet and a coiling machine driving mechanism, wherein the coiling machine driving mechanism is connected with the coiling machine power distribution cabinet, the coiling machine power distribution cabinet is connected with the field operation cabinet, the tension control system also comprises a main control cabinet, a touch screen and a coiling diameter increment detection mechanism, the coiling diameter increment detection mechanism is a proximity switch, the proximity switch is fixed on one side of a transmission shaft of the coiling machine and used for detecting the number of turns of a coiling shaft, the proximity switch is connected with the field operation cabinet, and the field operation cabinet is connected with the main control cabinet. According to the tension control system of the coiling machine with the structure, tension control is changed into control setting of the main control cabinet, so that the tension set value is gradually decreased along with the increase of the coiling diameter, the defects of plate surface adhesion and edge rolling dislocation caused by overlarge constant tension are avoided, the defects of adhesion holes are eliminated in the process of rolling an aluminum plate strip foil, the rolling strip breakage is reduced, and the yield and the product quality of an aluminum foil are improved.
Description
Technical Field
The invention relates to a tension control system of a coiling machine.
Background
In the industrial control industry, a strip product needs to control tension to meet production requirements, and a casting and rolling coiler is an aluminum plate rolling mechanism. After being rolled by the roller, the aluminum plate is conveyed to a reel of a coiling machine through a pinch roller, an aluminum plate material head is clamped by expanding through an expansion and contraction valve, and the reel drives a speed reducer to rotate in a constant direction through a direct current motor to finish the collection of coiled materials. Most of the tension control systems of the current coiling machines are constant tension control. The tension adjustment is controlled by a voltage signal of 0-10V through a 10K multi-turn potentiometer. The potentiometer is controlled to be affected by the service life, after the potentiometer is used for a period of time, the output voltage is unstable due to unsmooth resistance adjustment, and then the tension control of the coiling motor is unstable directly. Therefore, the potentiometer needs to be replaced periodically. The potentiometer is given as a fixed value, gradient adjustment cannot be carried out along with the increase of the roll diameter, and the plate surface is easily stuck due to overlarge tension when the aluminum roll is rolled up greatly, so that the product quality of the next process is influenced. With the improvement of the product quality requirement, the production and use requirements can not be met.
Disclosure of Invention
The tension control system of the coiling machine provided by the invention has the advantages that the tension control is changed into the control setting of the main control cabinet, so that the tension set value is gradually decreased along with the increase of the coiling diameter, the plate surface sticking and the edge rolling staggered floor caused by overlarge constant tension are avoided, the defects of sticking holes are eliminated in the rolling process of an aluminum plate strip foil, the rolling strip breakage is reduced, and the yield and the product quality of the aluminum foil are improved.
In order to achieve the purpose, the invention provides a tension control system of a coiling machine, which comprises a coiling machine power distribution cabinet, a field operation cabinet and a coiling machine driving mechanism, wherein the coiling machine driving mechanism is connected with the coiling machine power distribution cabinet, the coiling machine power distribution cabinet is connected with the field operation cabinet, the tension control system also comprises a main control cabinet, a touch screen arranged on the field operation cabinet and a coil diameter increment detection mechanism, the coil diameter increment detection mechanism is a proximity switch, the proximity switch is fixed on one side of a transmission shaft of the coiling machine and used for detecting the number of turns of a reel, the proximity switch is connected with the field operation cabinet, and the field operation cabinet is connected with the main control cabinet.
Preferably, the main control cabinet comprises a PLC control module, an analog input module, a digital output module and a storage module, wherein the analog input module is used for collecting current and speed signals of the coiling direct current motor.
Preferably, the field operation cabinet comprises a communication module and a digital input module, the digital input module is connected with the proximity switch, the digital input module transmits data to the PLC control module through the communication module for calculation, the PLC control module controls the attraction and release of the relay through the digital output module, and the relay is connected with the coiling main contactor and used for controlling the closing and opening of the coiling contactor.
Preferably, the winding diameter X is calculated by the number of turns of the winding shaft,
X＝2*C+D，
wherein, for panel thickness, C is the spool number of revolutions, and D is the spool diameter.
Preferably, the actual tension F is calculated from the coil diameter,
F＝F0*[1-k(1-D0/D)]
wherein F0 is the set tension, the tension gradient control coefficient k, the D0 initial winding diameter and the real-time winding diameter D.
Preferably, the PLC control module is connected with a direct current speed regulator in the power distribution cabinet of the coiling machine through the digital quantity output module, the direct current speed regulator is connected with a coiling direct current motor in the driving mechanism of the coiling machine, and the coiling direct current motor is connected with a coiling reel through a speed reducer.
Therefore, the tension control system of the coiling machine with the structure is adopted, after the coiled material is threaded and coiled, an initial tension value is given, the proximity switch is additionally arranged on the transmission shaft part of the coiling machine, the proximity switch is switched on every time the reel rotates for one circle, the PLC control module records the increasing value of the coil diameter, the tension given value is gradually decreased along with the increase of the coil diameter, the plate surface adhesion and the edge rolling staggered layer caused by overlarge constant tension are avoided, the adhesion hole defect is eliminated, the rolling broken strip is reduced, the aluminum foil yield and the product quality are improved, and the product is ensured to meet the quality and performance requirements.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a tension control system of a coiler.
Detailed Description
Examples
Fig. 1 is a schematic structural diagram of a tension control system of a recoiling machine, and as shown in the figure, the tension control system of the recoiling machine comprises a recoiling machine power distribution cabinet, a field operation cabinet and a recoiling machine driving mechanism, wherein the recoiling machine driving mechanism is connected with the recoiling machine power distribution cabinet, the recoiling machine power distribution cabinet is connected with the field operation cabinet, the tension control system further comprises a main control cabinet, a touch screen arranged on the field operation cabinet and a roll diameter increment detection mechanism, the main control cabinet is arranged on the recoiling machine power distribution cabinet and comprises a PLC (programmable logic controller) control module, an analog quantity input module, a digital quantity output module and a storage module, and the analog quantity input module is used for acquiring current and speed signals of a recoiling direct current motor and displaying the signals through the digital quantity output module and the touch screen.
The reel diameter increment detection mechanism is a proximity switch, the proximity switch is a capacitance type proximity switch, the proximity switch is fixed on one side of a transmission shaft of the reeling machine and used for detecting the number of turns of a reel, the proximity switch is connected with the field operation cabinet, and the field operation cabinet is connected with the main control cabinet.
The coil diameter X is calculated through the number of turns of the reel,
X＝2*C+D，
wherein, for panel thickness, C is the spool number of revolutions, and D is the spool diameter.
For example, the thickness of the plate is 7mm, the thickness of the plate is increased by 2 plate thickness every time the plate is wound, and the thickness of the plate is calculated by 1 coil: X7X 2X 1+510 mm 524mm, calculated for 100 turns of the thickness of the wound coil: X7X 2X 100+510 mm 1910 mm.
The actual tension F is calculated from the coil diameter,
F＝F0*[1-k(1-D0/D)]
wherein F0 is the set tension, the tension gradient control coefficient k, the D0 initial winding diameter and the real-time winding diameter D. For example, the coefficient K is set to 0.3, the initial tension is set to 5000KG, the initial roll diameter is set to 510mm, the end roll diameter is 1910mm, and the tension at the moment of winding is calculated, F is 5000 × [1-0.3(1-510/510) ], and the tension is calculated when the roll diameter is 1000 mm: f5000 × 1-0.3(1-510/1000) ] -4265 KG, tension calculation at coil diameter of 1910 mm: f5000 × 1-0.3(1-510/1910) ] -3900 KG.
The field operation cabinet comprises a communication module and a digital input module, the digital input module is connected with the proximity switch, the digital input module transmits data to the PLC control module through the communication module for calculation, the PLC control module controls the suction and release of the relay through the digital output module, and the relay is connected with the coiling main contactor and used for controlling the closing and opening of the coiling contactor. The PLC control module is connected with a direct current speed regulator in the power distribution cabinet of the coiling machine through the digital quantity output module, the direct current speed regulator is connected with a coiling direct current motor in the driving mechanism of the coiling machine, and the coiling direct current motor is connected with a coiling scroll through a speed reducer.
Therefore, the tension control system of the coiling machine with the structure is adopted, after the coiled material is threaded and coiled, an initial tension value is given, the proximity switch is additionally arranged on the transmission shaft part of the coiling machine, the proximity switch is switched on every time the reel rotates for one circle, the PLC control module records the increasing value of the coil diameter, the tension given value is gradually decreased along with the increase of the coil diameter, the plate surface adhesion and the edge rolling staggered layer caused by overlarge constant tension are avoided, the adhesion hole defect is eliminated, the rolling broken strip is reduced, the aluminum foil yield and the product quality are improved, and the product is ensured to meet the quality and performance requirements.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (6)
1. A tension control system of a coiling machine comprises a coiling machine power distribution cabinet, a field operation cabinet and a coiling machine driving mechanism, wherein the coiling machine driving mechanism is connected with the coiling machine power distribution cabinet, the coiling machine power distribution cabinet is connected with the field operation cabinet, and the tension control system is characterized in that: the reel diameter increment detection mechanism is a proximity switch, the proximity switch is fixed on one side of a transmission shaft of the coiling machine and used for detecting the number of turns of a reel, the proximity switch is connected with the field operation cabinet, and the field operation cabinet is connected with the main control cabinet.
2. A coiler tension control system according to claim 1, characterized in that: the main control cabinet comprises a PLC control module, an analog input module, a digital output module and a storage module, wherein the analog input module is used for collecting current and speed signals of the coiling direct current motor.
3. A coiler tension control system according to claim 2, characterized in that: the field operation cabinet comprises a communication module and a digital input module, the digital input module is connected with the proximity switch, the digital input module transmits data to the PLC control module through the communication module for calculation, the PLC control module controls the suction and release of the relay through the digital output module, and the relay is connected with the coiling main contactor and used for controlling the closing and opening of the coiling contactor.
4. A coiler tension control system according to claim 5, characterized in that: the coil diameter X is calculated through the number of turns of the reel,
X＝2*C+D，
wherein, for panel thickness, C is the spool number of revolutions, and D is the spool diameter.
5. A coiler tension control system according to claim 4, characterized in that: the actual tension F is calculated from the coil diameter,
F＝F0*[1-k(1-D0/D)]
wherein F0 is the set tension, the tension gradient control coefficient k, the D0 initial winding diameter and the real-time winding diameter D.
6. A coiler tension control system according to claim 5, characterized in that: the PLC control module is connected with a direct current speed regulator in the power distribution cabinet of the coiling machine through the digital quantity output module, the direct current speed regulator is connected with a coiling direct current motor in the driving mechanism of the coiling machine, and the coiling direct current motor is connected with a coiling scroll through a speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010789820.9A CN111889516A (en) | 2020-08-07 | 2020-08-07 | Tension control system of coiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010789820.9A CN111889516A (en) | 2020-08-07 | 2020-08-07 | Tension control system of coiling machine |
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| Publication Number | Publication Date |
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| CN111889516A true CN111889516A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010789820.9A Pending CN111889516A (en) | 2020-08-07 | 2020-08-07 | Tension control system of coiling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433633A (en) * | 2021-12-31 | 2022-05-06 | 天津市新宇彩板有限公司 | Tension torque control method and system for sheet coiling unit and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1457162A (en) * | 1964-12-14 | 1966-10-28 | Asea Ab | Ribbon tension measuring device |
| CN2540390Y (en) * | 2002-05-14 | 2003-03-19 | 汕头市金通实业有限公司 | Large winding diameter centre rolling control device |
| CN104760845A (en) * | 2015-04-17 | 2015-07-08 | 广东溢达纺织有限公司 | Fabric winding tension adjusting system and method for adjusting fabric winding tension |
-
2020
- 2020-08-07 CN CN202010789820.9A patent/CN111889516A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1457162A (en) * | 1964-12-14 | 1966-10-28 | Asea Ab | Ribbon tension measuring device |
| CN2540390Y (en) * | 2002-05-14 | 2003-03-19 | 汕头市金通实业有限公司 | Large winding diameter centre rolling control device |
| CN104760845A (en) * | 2015-04-17 | 2015-07-08 | 广东溢达纺织有限公司 | Fabric winding tension adjusting system and method for adjusting fabric winding tension |
Non-Patent Citations (2)
| Title |
|---|
| 张婧等: "450mm带钢拉弯矫直机速度控制模型研究", 《太原科技大学学报》 * |
| 李方圆: "《变频器行业应用实践》", 31 May 2006, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433633A (en) * | 2021-12-31 | 2022-05-06 | 天津市新宇彩板有限公司 | Tension torque control method and system for sheet coiling unit and electronic equipment |
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Application publication date: 20201106 |
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