CN111922120A - Method for preventing side guide plate of coiling machine from clamping steel - Google Patents
Method for preventing side guide plate of coiling machine from clamping steel Download PDFInfo
- Publication number
- CN111922120A CN111922120A CN202010654689.5A CN202010654689A CN111922120A CN 111922120 A CN111922120 A CN 111922120A CN 202010654689 A CN202010654689 A CN 202010654689A CN 111922120 A CN111922120 A CN 111922120A
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- Prior art keywords
- side guide
- guide plate
- coiler
- strip steel
- head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
- B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The invention discloses a method for preventing a side guide plate of a coiler from clamping steel, and belongs to the technical field of metallurgy. The method for preventing the side guide plate of the coiler from being blocked comprises the following steps: acquiring a target width W1 of the strip steel, and opening a side guide plate of a coiler to a first set position; acquiring the actual width W2 of the head of the strip steel, and comparing the target width W1 with the actual width W2 of the head of the strip steel to acquire an ultra-wide value W; judging whether the head of the strip steel is ultra wide or not according to the ultra wide value W; when the head of the strip steel is ultra-wide, the side guide plate of the coiling machine is opened to a second set position by increasing the offset clearance value of the side guide plate of the coiling machine. The method for preventing the side guide plate of the coiling machine from clamping steel can avoid the condition that the side guide plate of the coiling machine is manually opened to cause no effect and the side guide plate clamps steel when the head of the strip steel is ultra-wide, and can embody the opening value of the side guide plate of the coiling machine.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a method for preventing a side guide plate of a coiler from being blocked by steel.
Background
In the metallurgical industry, hot rolled sheet is generally rolled by six or seven finishing mills and finally coiled into coils by two or three coilers. In order to ensure that the head of the strip steel can smoothly enter the coiling machine and the steel coil does not generate inner tower defects, the offset clearance value of the side guide plate is fixed to a proper value.
In the actual production process, after a reeling operator obtains the ultra-wide information of the head of the strip steel, the head of the strip steel is ensured to smoothly pass through the side guide plates by manually opening the side guide plates, so that the steel clamping accident of the side guide plates is prevented, and the steel scrap is caused.
However, the practical production finds that the method causes the following two disadvantages:
(1) after the side guide plate is manually opened, the steel coil inner tower is easily caused.
(2) After the side guide plate is closed in a short stroke, the offset margin value of the side guide plate cannot be increased due to the fact that the side guide plate is manually opened, and the offset clearance value of the side guide plate is still small, so that the ultra-wide part of the head of the strip steel can be still clamped by the side guide plate after the side guide plate is closed in the short stroke, and scrap steel is caused.
Disclosure of Invention
The invention provides a method for preventing a side guide plate of a coiling machine from being blocked by steel, which solves or partially solves the technical problem that the side guide plate of the coiling machine is blocked by the super-wide head of strip steel in the prior art.
In order to solve the technical problem, the invention provides a method for preventing a side guide plate of a coiler from being blocked by steel, which comprises the following steps: acquiring a target width W1 of the strip steel, and opening a side guide plate of a coiler to a first set position; acquiring the actual width W2 of the head of the strip steel, and comparing the target width W1 with the actual width W2 of the head of the strip steel to acquire an ultra-wide value W; judging whether the head of the strip steel is ultra wide or not according to the ultra wide value W; when the head of the strip steel is ultra-wide, the side guide plate of the coiling machine is opened to a second set position by increasing the offset clearance value of the side guide plate of the coiling machine.
Further, the first set position is the sum of the target width of the strip steel, the short stroke value of the side guide plate and the offset clearance value of the side guide plate of the coiling machine.
Further, the acquiring the actual width W2 of the strip head comprises: arranging a width gauge at an outlet of the finishing mill; and acquiring the actual width W2 of the head of the strip steel by a width gauge.
Further, the judging whether the head of the strip steel is ultra-wide according to the ultra-wide value W comprises: and when the super width value W1-W2 is equal to or larger than 20mm, judging that the head of the strip steel is super wide.
Further, the second set position is a sum of the first set position and an increase in the offset clearance value of the winder side guide.
Furthermore, the offset clearance value of the side guide plate of the coiling machine is the clearance value between the inner side of the side guide plate of the coiling machine and the edge of the strip steel after the side guide plate of the coiling machine performs short stroke closing.
Further, when the strip steel head is ultra-wide, opening the side guide plate of the coiling machine to a second set position by increasing the offset clearance value of the side guide plate of the coiling machine comprises: when alpha is less than or equal to W and less than beta, the offset clearance value of the side guide plate of the coiler is increased by alpha.
Further, the method for preventing the side guide plate of the coiling machine from being blocked by steel further comprises the following steps: and when the head of the strip steel reaches the laminar cooling outlet, the side guide plate of the coiling machine stops executing the offset clearance value increasing action of the side guide plate of the coiling machine.
Furthermore, a hot metal detector is arranged at the layer cold outlet, and whether the head of the strip steel reaches the layer cold outlet is detected through the hot metal detector.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the method comprises the steps of obtaining the target width W1 of the strip steel, opening the side guide plate of the coiling machine to a first set position, obtaining the actual width W2 of the head of the strip steel, comparing the target width W1 with the actual width W2 of the head of the strip steel, obtaining the ultra-wide value W, judging whether the head of the strip steel is ultra-wide according to the ultra-wide value W, when the head of the strip steel is ultra-wide, opening the side guide plate of the coiling machine to a second set position by increasing the offset gap value of the side guide plate of the coiling machine, enabling the side guide plate to act to a specified position by increasing the offset gap value of the side guide plate of the coiling machine, preventing the ultra-wide part of the head of the strip steel from being blocked by the side guide plate of the coiling machine to cause waste steel, avoiding the situation that the side guide plate of the coiling machine does not work when the head of the strip.
Drawings
FIG. 1 is a schematic flow chart of a method for preventing a side guide plate of a coiler from being jammed according to an embodiment of the invention;
FIG. 2 is a top view of the coiler of the method of FIG. 1 for preventing jamming of the side guide of the coiler;
fig. 3 is a side view of the reel-up in fig. 2.
Detailed Description
Referring to fig. 1, a method for preventing a side guide plate of a coiler provided by an embodiment of the invention from being jammed comprises the following steps:
step S1, the target width W1 of the strip steel 1 is obtained, and the side guide plate 2 of the coiling machine is opened to a first set position.
And step S2, acquiring the actual width W2 of the strip steel head, and comparing the target width W1 with the actual width W2 of the strip steel head to acquire the ultra-wide value W.
And step S3, judging whether the head of the strip steel is ultra wide or not according to the ultra wide value W.
And step S4, when the strip steel head is ultra-wide, the side guide plate 2 of the coiling machine is opened to a second set position by increasing the offset clearance value 10 of the side guide plate 1 of the coiling machine.
In the embodiment of the application, the target width W1 of the strip steel 1 is obtained, the side guide plate 2 of the coiling machine is opened to the first set position, the actual width W2 of the head of the strip steel is obtained, the target width W1 is compared with the actual width W2 of the head of the strip steel to obtain the ultra-wide value W, judging whether the head of the strip steel is ultra-wide or not according to the ultra-wide value W, opening the side guide plate 2 of the coiling machine to a second set position by increasing the offset clearance value 10 of the side guide plate 2 of the coiling machine when the head of the strip steel is ultra-wide, the offset clearance value 10 of the side guide plate 2 of the coiling machine is increased to enable the side guide plate to move to a designated position, prevent the ultra-wide part of the head of the strip steel 1 from being blocked by the side guide plate 2 of the coiling machine to cause scrap steel, when the head of the strip steel is ultra-wide, the situation that the side guide plate 2 of the coiling machine is manually opened to cause no effect and the side guide plate clamps the steel can be avoided, and the opening value of the side guide plate of the coiling machine is specified.
Specifically, the first set position is the sum of the target width of the strip steel 1, the short stroke value of the side guide 2 and the offset gap value 10 of the side guide 2 of the coiler.
Specifically, obtaining the actual width W2 of the strip head includes:
a width gauge 4 is arranged at the outlet of the finishing mill 3; the actual width W2 of the head of the strip steel 1 is obtained by the width gauge 4, and the accuracy of obtaining the actual width W2 of the head of the strip steel 1 is ensured.
Specifically, according to super wide value W, judge whether belted steel head is super wide including:
and when the super width value W1-W2 is equal to or larger than 20mm, judging that the head of the strip steel 1 is super wide.
The second set position is the sum of the first set position and the increase in the offset clearance value 10 of the winder side guide 2.
The offset clearance value 10 of the coiler side guide 2 is the clearance value between the inner side of the coiler side guide 2 and the edge of the strip steel 1 after the coiler side guide 2 is closed by a short stroke.
Specifically, when the head of the strip steel 1 is ultra-wide, opening the coiler side guide 2 to the second set position by increasing the offset gap value 10 of the coiler side guide 2 includes: when alpha is less than or equal to W and less than beta, the offset clearance value 10 of the side guide plate of the coiler is increased by alpha.
When W is more than or equal to 20mm and less than 30mm, the offset clearance value of the side guide plate 2 of the coiler is increased by 20 mm; when W is more than or equal to 30mm and less than 40mm, the offset clearance value of the side guide plate 2 of the coiler is increased by 30 mm; when W is more than or equal to 40mm and less than 50mm, the offset clearance value of the side guide plate 2 of the coiler is increased by 40mm, and the like.
Wherein, the same strip steel ultra-wide range only executes the offset clearance value increase of the side guide plate 2 of the coiling machine once. When the coiler side guide 2 has performed a full ultra-wide range of offset gap values 10 increase, the coiler side guide 2 no longer performs a small range of offset gap values 10 increase. When the coiler side guide 2 performs the increase of the offset gap value of the small ultra-wide range and then performs the increase of the offset gap value of the large range, the portion in which the offset gap value has been increased is not performed.
The method for preventing the side guide plate of the coiler from being blocked further comprises the following steps: when the head of the strip steel 1 reaches the laminar cooling outlet 5, the coiler side guide 2 stops executing the operation of increasing the offset clearance value 10 of the coiler side guide. The hot metal detector 6 is arranged at the layer cooling outlet 5, and whether the head of the strip steel 1 reaches the layer cooling outlet or not is detected through the hot metal detector 6, so that the influence on subsequent work is avoided.
In order to more clearly describe the embodiments of the present invention, the following description is made in terms of the method of using the embodiments of the present invention.
Take the example of the reel 7 winding the steel coil.
The coiler side guide 2 is opened to a first set position according to the target width W1 of the produced strip 1. The first set position is the sum of the target width of the strip steel 1, the short stroke value of the side guide plate 2 of the coiling machine and the offset clearance value of the side guide plate 2 of the coiling machine.
Referring to fig. 2-3, before the strip head reaches the finishing mill 3, the width of the coiler side guide 2 is set to a first set position where the target width W1 of the strip 1+ the value of the short stroke 8 + the value of the short stroke 9 + the value of the coiler side guide offset gap 10, and the coiler side guide waits for the arrival of the strip 1.
The width gauge 4 at the outlet of the finishing mill 3 detects the head of the strip steel, and the actual value W2 of the head width of the strip steel 1 is obtained by a PLC (Programmable Logic Controller). When the head of the strip steel 1 exits the finishing mill 3 and passes through the width measuring instrument 4, the width measuring instrument 4 acquires the actual width W2 of the strip steel 1 in real time, and the PLC acquires the actual width W2 of the strip steel 1.
And the PLC obtains an ultra-wide value W (W1-W2) according to the difference value between the target width W1 of the strip steel and the actual width W2 of the strip steel head, and judges whether the strip steel head is ultra-wide or not. And when the super width value (W1-W2) is equal to or larger than 20mm, judging that the head of the strip steel is super wide. And comparing the obtained actual width W2 of the strip steel 1 with the target width W1 of the strip steel 1 by the PLC to obtain an ultra-wide value W (W1-W2), and judging that the strip steel is ultra-wide by the PLC when the W is more than or equal to 20 mm.
When the target width of the strip steel is 1200mm, and the width of the strip steel 1 detected by the width gauge 5 in real time is 1225mm, the coiling primary PLC compares the obtained actual width 1225mm of the strip steel 1 with the target width 1200mm of the strip steel 1, and if the 1225mm-1200mm is larger than 25mm and larger than 20mm, the head of the strip steel 1 is ultra-wide.
When the head of the strip steel is ultra-wide, the side guide plate 2 of the coiling machine is opened to a second set position.
The coiler side guide 2 is opened to a second set position by increasing the current offset gap value of the coiler side guide. Namely: the second set position is the sum of the first set position and the increase in the offset clearance value 10 of the winder side guide 2.
When W is more than or equal to 20mm and less than 30mm, the offset clearance value of the side guide plate 2 of the coiler is increased by 20 mm; when W is more than or equal to 30mm and less than 40mm, the offset clearance value of the side guide plate of the coiler is increased by 30 mm; when W is more than or equal to 40mm and less than 50mm, the offset clearance value of the side guide plate 2 of the coiler is increased by 40 mm; and so on. The same strip steel ultra-wide range only carries out the increase of the offset clearance value of the side guide plate of the coiling machine once. When the coiler side guide 2 has performed the increase of the offset gap value in the ultra-wide range, the coiler side guide does not perform the increase of the offset gap value in the small range any more. When the coiler side guide 2 performs the increase of the offset gap value of the small ultra-wide range and then performs the increase of the offset gap value of the large range, the portion in which the offset gap value has been increased is not performed.
When the strip head reaches the layer cooling outlet 5, the side guide does not perform the offset gap value increasing action any more. The hot metal detector 6 at the layer cooling outlet 5 detects whether the head of the strip steel reaches the layer cooling outlet.
When the PLC judges that the head of the strip steel 1 is ultra-wide, the head of the strip steel 1 reaches the hot metal detector 6 at the outlet of the coiling layer cooling 5, and before the hot metal detector 6 detects the head of the strip steel 1, the PLC can automatically increase the offset clearance value 10 of the current block of the side guide plate 2 of the coiling machine. When the head super width value of the strip steel 1 is W which is 25mm, the offset clearance value 10 of the side guide plate 2 of the coiling machine is increased by 20mm, and at the moment, the PLC automatically controls the side guide plate 2 of the coiling machine to be opened to a second set position, namely, a first set position +20 mm.
When the PLC judges that the strip steel super width value is W which is 25mm, the offset clearance value 10 of the side guide plate 2 of the coiling machine is increased by 20mm, and at the moment, the side guide plate 2 is automatically controlled by the PLC to be opened to a second set position, namely, a first set position +20 mm. However, before the head of the strip steel 1 reaches the hot metal detector 6 at the outlet of the coiling layer cooling 5, and the PLC judges that the strip steel super width value is W equal to 35mm again before the hot metal detector 6 detects the head of the strip steel 1, the PLC automatically controls the side guide plate 2 of the coiling machine to increase the offset clearance value 10 by 10mm, and the increased 20mm does not increase any more.
When the head of the strip steel 1 is ultra-wide and before the strip steel enters the side guide plate 2 of the coiling machine, the side guide plate 2 of the coiling machine is closed by a short stroke 8 and a short stroke 9 due to the increase of the offset clearance value 10 of the side guide plate, so that the ultra-wide part of the head of the strip steel 1 is not clamped by the side guide plate 2 of the coiling machine, and the strip steel 1 smoothly enters the coiling machine 4.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. A method for preventing a side guide plate of a coiling machine from being blocked is characterized by comprising the following steps:
acquiring a target width W1 of the strip steel, and opening a side guide plate of a coiler to a first set position;
acquiring the actual width W2 of the head of the strip steel, and comparing the target width W1 with the actual width W2 of the head of the strip steel to acquire an ultra-wide value W;
judging whether the head of the strip steel is ultra wide or not according to the ultra wide value W;
when the head of the strip steel is ultra-wide, the side guide plate of the coiling machine is opened to a second set position by increasing the offset clearance value of the side guide plate of the coiling machine.
2. The method for preventing the side guide of the coiler side from getting stuck according to claim 1, characterized in that:
the first set position is the sum of the target width of the strip steel, the short stroke value of the side guide plate and the offset clearance value of the side guide plate of the coiling machine.
3. The method for preventing the side guide of the coiler side from being stuck according to claim 1, wherein the obtaining the actual width W2 of the strip head comprises:
arranging a width gauge at an outlet of the finishing mill;
and acquiring the actual width W2 of the head of the strip steel by a width gauge.
4. The method for preventing the side guide plate of the coiling machine from being blocked by the steel according to claim 1, wherein the step of judging whether the head of the strip steel is too wide according to the super width value W comprises the following steps:
and when the super width value W1-W2 is equal to or larger than 20mm, judging that the head of the strip steel is super wide.
5. The method for preventing the side guide of the coiler side from getting stuck according to claim 1, characterized in that:
the second set position is the sum of the first set position and the offset clearance value increase of the side guide plate of the coiler.
6. The method for preventing the side guide of the coiler side from getting stuck according to claim 1, characterized in that:
the offset clearance value of the side guide plate of the coiler is the clearance value between the inner side of the side guide plate of the coiler and the edge of the strip steel after the side guide plate of the coiler is closed in a short stroke.
7. The method for preventing the seizing of the side guide of the coiler according to claim 1, wherein the opening of the coiler side guide to the second set position by increasing the offset gap value of the coiler side guide when the head of the strip is over-wide comprises:
when alpha is less than or equal to W and less than beta, the offset clearance value of the side guide plate of the coiler is increased by alpha.
8. The method of preventing the coiler side guide from getting stuck according to claim 1, wherein the method of preventing the coiler side guide from getting stuck further comprises:
and when the head of the strip steel reaches the laminar cooling outlet, the side guide plate of the coiling machine stops executing the offset clearance value increasing action of the side guide plate of the coiling machine.
9. The method for preventing the side guide of the coiler side from getting stuck according to claim 8, wherein:
and a hot metal detector is arranged at the layer cooling outlet, and the hot metal detector is used for detecting whether the head of the strip steel reaches the layer cooling outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010654689.5A CN111922120A (en) | 2020-07-09 | 2020-07-09 | Method for preventing side guide plate of coiling machine from clamping steel |
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| CN202010654689.5A CN111922120A (en) | 2020-07-09 | 2020-07-09 | Method for preventing side guide plate of coiling machine from clamping steel |
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| CN112934973A (en) * | 2021-01-29 | 2021-06-11 | 莱芜钢铁集团银山型钢有限公司 | Recoiling machine and method for dynamically controlling opening of side guide plate thereof |
| CN113020268A (en) * | 2021-03-08 | 2021-06-25 | 莱芜钢铁集团银山型钢有限公司 | Coiler, side guide control method and method for dynamically controlling clamping time |
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Application publication date: 20201113 |