CN110961463A - Anti-falling device and method for tail coil - Google Patents
Anti-falling device and method for tail coil Download PDFInfo
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- CN110961463A CN110961463A CN201811156423.7A CN201811156423A CN110961463A CN 110961463 A CN110961463 A CN 110961463A CN 201811156423 A CN201811156423 A CN 201811156423A CN 110961463 A CN110961463 A CN 110961463A
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- steel pipe
- handle
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- tail
- support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
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Abstract
The invention discloses a falling prevention device and a falling prevention method for a tail coil, wherein the falling prevention device comprises a sleeve main body (1), a positioning pin assembly (2), a handle (3) and a support (4); the sleeve pipe main part includes first steel pipe (11) and second steel pipe (12) of different diameters, first steel pipe box is in the second steel pipe, locating pin subassembly is including setting up locating pin (21) on first steel pipe and setting up direction spout (22) on the second steel pipe, the locating pin inserts in the direction spout, the handle is including connecting first handle (31) at first steel pipe both ends and connecting second handle (32) at second steel pipe both ends, the support is including connecting first support (41) on first handle and connecting second support (42) on the second handle. According to the invention, on the premise of not modifying the existing equipment and not increasing the workload of crane lifting, the weight of the small tail coil is reduced, the yield is improved, and the accident that the tail coil is deformed and falls is effectively avoided.
Description
Technical Field
The invention relates to silicon steel finished product line production equipment and method, in particular to a tail coil falling prevention device and method.
Background
The finishing unit is the end production line of the silicon steel department of a certain steel manufacturing enterprise, and the main process flow is to carry out coil splitting, edge cutting and quality inspection on the mother coil according to the contract requirements or quality grade differences. A parent roll weighing about 20 tons of incoming material is typically divided into several 1 to 7 tons of quality rolls, and the last remaining portion of the parent roll tends to form a tail roll. Meanwhile, the coil can not be sold as a genuine product because the weight of the coil is less than 1 ton, and can only be sold at low price as a tail coil, and what is more, when the weight of the last small coil is too light, the finished product weighing link is directly skipped, and the waste coil is directly treated.
Referring to fig. 1, the current processing flow for the tail roll operation is: the tail roll 10 is divided into three stages: the estimated volume of the tail coil 10 is 400-; the tail coil 10 estimated to be 150 and 400kg is transported to the saddle 30 through the coiler 20, and the travelling crane 50 transports the tail coil 10 to the off-line site 100 and discards the tail coil 10; the tail coil 10 estimated to be less than or equal to 150kg is cut waste by the outlet transverse shearing device 60 and transported to the outlet scrap steel hopper 70.
When the tail coil is unloaded from the coiler mandrel, if the weight of the tail coil is too small, namely the thickness of the steel coil wall is too thin, the coil is collapsed, the coil becomes flat on the trolley, the average coil weight of the tail coil is 430kg, when the weight of the tail coil is lower than 400kg, the steel coil will gradually collapse, and the speed of collapsing the coil is faster as the weight is lighter, please refer to fig. 2, a ring IV is a collapsed state of the tail coil 10, the collapsed tail coil 10 finally falls from the space in the middle of the saddle 30 during the transportation process of the trolley, equipment is damaged, safety accidents are caused, and therefore the tail coil with the weight of lower than 400kg can be discarded.
The finishing unit part of the prior art is provided with the tail coil falling prevention device, but the saddle 30 is provided with the weighing platform, and the tail coil 10 is not required to be transported through the walking beam 40.
The finishing unit part of prior art installs the dismounting device of tail book 10, the uninstallation of the tail book 10 of being convenient for, but the unavoidable tail book 10 collapses the book to the unavoidable tail book 10 falls from the space in the middle of saddle 30, and can't realize the reduction of tail book 10 weight, and the lumber recovery is low.
Disclosure of Invention
The invention aims to provide a tail coil falling prevention device and method, which can reduce the weight of a small tail coil, improve the yield and effectively avoid the falling accident caused by the deformation of the tail coil on the premise of not modifying the existing equipment and increasing the lifting workload of a travelling crane.
The invention is realized by the following steps:
a falling prevention device for a tail coil comprises a sleeve main body, a positioning pin assembly, a handle and a bracket; the sleeve main body comprises a first steel pipe and a second steel pipe which are different in diameter, and the first steel pipe is sleeved in the second steel pipe to enable the first steel pipe and the second steel pipe to rotate relatively; the positioning pin assembly comprises a positioning pin arranged on the first steel pipe and a guide sliding groove arranged on the second steel pipe, and the positioning pin is inserted into the guide sliding groove to enable the first steel pipe and the second steel pipe to be locked relatively; the handle is including connecting the first handle at first steel pipe both ends and connecting the second handle at second steel pipe both ends, and the support is including connecting the first support on first handle and connecting the second support on the second handle, and the second support passes through second handle and second steel pipe synchronous rotation.
The positioning pin is arranged along the radial direction of the first steel pipe, the guide sliding groove is arranged along the axial direction of the second steel pipe, the second steel pipe rotates for 90 degrees relative to the first steel pipe and is locked, the second steel pipe is unfolded to form a cross-shaped structure, and the width of the anti-falling device after being unfolded is larger than the width of a gap of the saddle.
The first support and the second support are arc-shaped structures.
The first support and the second support are sleeved with rubber protective sleeves.
The length of the second handle is smaller than that of the first handle, and the length of the first steel pipe is larger than that of the second steel pipe, so that the second support is positioned on the inner side of the first support.
A method of preventing a tail coil from falling, comprising the steps of:
step 1: when the travelling crane of the steel coil transports the tail coil to the saddle and the travelling crane does not leave the saddle, the anti-falling device is flattened and inserted into the inner core of the tail coil;
step 2: the first steel pipe and the second steel pipe are relatively rotated to be in a cross shape through the first handle and the second handle, the anti-falling device is changed from a flat state to a spreading state, and the anti-falling device is locked through the positioning pin and the guide sliding groove;
and step 3: then the travelling crane is withdrawn, and the walking beam is put into the tail coil to be transported to a weighing position for weighing;
and 4, step 4: and (4) the tail roll is transported to a packaging position by the walking beam and packaged, and the anti-falling device is taken out.
When the tail coil is weighed at the weighing position, the weight of the anti-falling device is automatically eliminated.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can greatly reduce the weight of the small tail coil, greatly improve the unit yield, and reduce the average weight of the tail coil from about 435kg to about 200 kg.
2. The anti-falling device can support the lightened small tail coil, has a locking function, prevents the tail coil from collapsing, can be transported among a steel coil trolley, a steel coil saddle, a walking beam and a travelling crane clamp according to a normal flow, avoids the tail coil from falling from gaps, and has the characteristics of low cost and simplicity and convenience in operation.
3. The anti-falling method is simple to operate and easy to operate, has no requirement on the original design of the unit, and has wide application and popularization prospects.
According to the invention, on the premise of not modifying the existing equipment and not increasing the workload of lifting by a travelling crane, the tail rolls with the estimated weight of more than 200kg are merged into the rolls sold by packaging, so that the weight of the small tail rolls is reduced, the production cost is reduced and the yield of a unit is improved; the tail coil is supported by the support, so that the tail coil is prevented from collapsing, the phenomenon that the tail coil falls from gaps of the saddle due to deformation can be effectively avoided, and the production accident rate is reduced.
Drawings
FIG. 1 is a prior art tail roll job processing flow diagram;
FIG. 2 is a diagram of a tail roll fall condition during a prior art tail roll operation;
FIG. 3 is a flow chart of a method of reducing weight of a tail coil of the present invention;
FIG. 4 is a front view of the anti-fall device of the tail coil of the present invention in an unused state;
FIG. 5 is a side view of the anti-fall device of the tail coil of the present invention in an unused state;
FIG. 6 is a front view of the anti-fall device for a tail coil of the present invention in use;
FIG. 7 is a side view of the anti-fall device for a tail coil of the present invention in use;
FIG. 8 is a front view of a second component of the fall arrest device for the tail coil of the present invention;
FIG. 9 is a side view of a second component of the fall arrest device for a tail coil in accordance with the present invention;
FIG. 10 is a front view of a first component of the fall arrest device for a tail coil of the present invention;
FIG. 11 is a side view of a first component of the fall arrest device for a tail coil in accordance with the present invention;
FIG. 12 is a diagram illustrating the operation of the method of preventing falling of the tail coil according to the present invention.
In the figure, 1 a sleeve main body, 11 a first steel pipe, 12 a second steel pipe, 2 a positioning pin assembly, 21 a positioning pin, 22 a guide chute, 3 a handle, 31 a first handle, 32 a second handle, 4 supports, 41 a first support, 42 a second support, 10 a tail coil, 20 a coiling machine, 30 a saddle, 40 a walking beam, 50 a travelling crane, 60 a transverse shearing device, 70 an outlet scrap steel bucket, 80 a weighing position, 90 a packaging position and 100 an off-line site.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 4 to 11, a tail-coil anti-falling device includes a casing main body 1, a positioning pin assembly 2, a handle 3 and a bracket 4; the sleeve main body 1 comprises a first steel pipe 11 and a second steel pipe 12 which are different in diameter, the first steel pipe 11 is coaxially sleeved in the second steel pipe 12, and the first steel pipe 11 and the second steel pipe 12 rotate relatively; the positioning pin assembly 2 comprises a positioning pin 21 arranged on the first steel pipe 11 and a guide sliding groove 22 arranged on the second steel pipe 12, and the positioning pin 21 is inserted into the guide sliding groove 22 to relatively lock the first steel pipe 11 and the second steel pipe 12; the handle 3 comprises a first handle 31 connected to two ends of the first steel pipe 11 and a second handle 32 connected to two ends of the second steel pipe 12, the support 4 comprises a first support 41 connected to the first handle 31 and a second support 42 connected to the second handle 32, the second support 42 rotates synchronously with the second steel pipe 12 through the second handle 32 to form a second part, and the rotating part rotates relatively to the first part formed by the first support 41, the first handle 31 and the first steel pipe 11.
The positioning pin 21 is arranged along the radial direction of the first steel pipe 11, the guide chute 22 is arranged along the axial direction of the second steel pipe 12, the second steel pipe 12 is enabled to rotate 90 degrees relative to the first steel pipe 11 and is locked, the second steel pipe is unfolded to form a cross-shaped structure, the width of the anti-falling device after being unfolded is larger than the width of a gap of the saddle 30, the anti-falling device of the tail coil can support the tail coil 10 from four directions, the tail coil 10 is prevented from collapsing, and meanwhile, the tail coil is prevented from falling from the gap of the saddle 30.
The first support 41 and the second support 42 are arc-shaped structures, so that the profile of the tail coil 10 can be better fitted, and the tail coil 10 keeps arc-shaped curling. The first bracket 41 and the second bracket 42 are sleeved with rubber protective sleeves to avoid abrasion of the surface of the tail scroll 10.
The length of the second handle 32 is less than that of the first handle 31, and the length of the first steel pipe 11 is greater than that of the second steel pipe 12, so that the second bracket 42 is positioned inside the first bracket 41.
Referring to fig. 12, a method for preventing a tail coil from falling includes the following steps:
step 1: the tail coil 10 is in the condition shown in ring I, and the fall arrest device is inserted flat into the core of the tail coil 10 by the operator when the travelling crane 50 for the coil of steel is transporting the tail coil 10 to the saddle 30 and the travelling crane 50 is not leaving the saddle 30.
Step 2: the first steel pipe 11 and the second steel pipe 12 are relatively rotated to be crossed by the first handle 31 and the second handle 32, the anti-falling device is changed from an original flat state to an expanded state, and is locked by the positioning pin 21 and the guide sliding groove 22, so that the tail coil 10 is ensured not to collapse, the state of the tail coil 10 is shown as a ring II, and when the anti-falling device of the tail coil is not used, the state of the tail coil 10 is shown as a ring III, the tail coil 10 begins to collapse and deform, and easily falls from a gap of the saddle 30.
And step 3: then the travelling crane 50 is withdrawn, the walking beam 40 is put into the transportation of the tail coil 10 to the weighing position 80 for weighing, and when weighing is carried out, the weight of the anti-falling device is automatically eliminated, so that the influence on the quality data acquisition of the tail coil 10 is avoided.
And 4, step 4: the walking beam 40 transports the tail roll 10 to the packing station 90 for packing and the fall arrest device is removed.
Example (b):
referring to fig. 3, after the anti-falling device of the tail coil is used in the production process of the tail coil, the tail coil can be greatly reduced in weight, and the method is realized through the following steps:
step 1: the tail coil 10, having an estimated weight of 200-1000kg, is transported to the saddle 30 by the coiler 20.
Step 2: the walking beam 40 is put into the tail coil 10 and transported to the weighing position 80 to be weighed, and then transported to the packaging position 90 to be packaged and then taken out.
And step 3: and cutting waste of the tail coil 10 with the estimated weight less than or equal to 200kg through an outlet transverse shearing device 60 and transporting the waste to an outlet waste steel hopper 70.
The weight reducing method directly cancels the procedure of scrapping 150kg-400kg of coil weight in the prior art, and the weight reducing method is incorporated into the coils sold by packaging, thereby reducing the weight of small tail coils and greatly improving the unit yield. However, when the small tail coil is too small, the small tail coil can be deformed in the coil unloading process, or the coil collapses on the coil trolley or directly falls from the gap of the saddle 30 to cause safety accidents, so that the small tail coil with the weight of 200kg to the minimum can be operated through the anti-falling device of the tail coil, and production accidents such as the falling of the tail coil 10 and the like are avoided.
Taking the non-oriented 3 units Q163/Q164/Q165 in a certain steel production enterprise as an example, the average coil weights of the units from 8 months in 2017 to 5 months in 2018 are summarized in the following table. The anti-falling device of the tail roll is used for assisting the production and treatment operation of the tail roll from 2 months in 2018, the average weight of the tail roll is reduced from 438.89 kg between 8 months in 2017 and 1 month in 2018 to 388.75 kg between 2 months in 2018 and 5 months, and the weight of the tail roll is reduced by 11.5 percent. The weight of the tail coil is influenced by the lowest coil weight capacity of the unit and is also related to the contract and the sectional material of the parent coil, so the average weight of the actual tail coil is always larger than the design value of the minimum tail coil weight.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A falling-preventing device for a tail coil is characterized in that: comprises a sleeve main body (1), a positioning pin component (2), a handle (3) and a bracket (4); the sleeve main body (1) comprises a first steel pipe (11) and a second steel pipe (12) which are different in diameter, the first steel pipe (11) is sleeved in the second steel pipe (12), and the first steel pipe (11) and the second steel pipe (12) rotate relatively; the positioning pin assembly (2) comprises a positioning pin (21) arranged on the first steel pipe (11) and a guide sliding groove (22) arranged on the second steel pipe (12), and the positioning pin (21) is inserted into the guide sliding groove (22) to enable the first steel pipe (11) and the second steel pipe (12) to be locked relatively; the handle (3) is including connecting first handle (31) at first steel pipe (11) both ends and connecting second handle (32) at second steel pipe (12) both ends, and support (4) are including connecting first support (41) on first handle (31) and connecting second support (42) on second handle (32), and second support (42) are through second handle (32) and second steel pipe (12) synchronous revolution.
2. The device of claim 1 wherein: the anti-falling device is characterized in that the positioning pin (21) is arranged along the radial direction of the first steel pipe (11), the guide sliding groove (22) is arranged along the axial direction of the second steel pipe (12), the second steel pipe (12) rotates for 90 degrees relative to the first steel pipe (11) and is locked, the anti-falling device is unfolded to form a cross structure, and the width of the anti-falling device is larger than the width of a gap of the saddle (30) after the anti-falling device is unfolded.
3. The device of claim 1 wherein: the first support (41) and the second support (42) are arc-shaped structures.
4. A device for preventing the fall of a tail coil as claimed in claim 1 or claim 3, wherein: the first support (41) and the second support (42) are sleeved with rubber protective sleeves.
5. The device of claim 1 wherein: the length of the second handle (32) is smaller than that of the first handle (31), the length of the first steel pipe (11) is larger than that of the second steel pipe (12), and the second support (42) is located on the inner side of the first support (41).
6. A method of preventing fall of a fall arrest device employing the tail coil of claim 1 or claim 2, characterised in that: the method comprises the following steps:
step 1: when the travelling crane (50) of the steel coil transports the tail coil (10) to the saddle (30) and the travelling crane (50) does not leave the saddle (30), the anti-falling device is flattened and inserted into the inner core of the tail coil (10);
step 2: the first steel pipe (11) and the second steel pipe (12) are relatively rotated to be in a cross shape through the first handle (31) and the second handle (32), the anti-falling device is changed from a flat state to a spread state, and the anti-falling device is locked through the positioning pin (21) and the guide sliding groove (22);
and step 3: then the travelling crane (50) is withdrawn, the walking beam (40) is put into the tail coil (10) to be transported to a weighing position (80) for weighing;
and 4, step 4: and the walking beam (40) transports the tail roll (10) to a packaging position (90) for packaging, and then the anti-falling device is taken out.
7. The method of claim 6, wherein the method further comprises: when the tail coil (10) is weighed at the weighing position (80), the weight of the anti-falling device is automatically eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811156423.7A CN110961463B (en) | 2018-09-30 | 2018-09-30 | Anti-falling device and method for tail coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811156423.7A CN110961463B (en) | 2018-09-30 | 2018-09-30 | Anti-falling device and method for tail coil |
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| Publication Number | Publication Date |
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| CN110961463A true CN110961463A (en) | 2020-04-07 |
| CN110961463B CN110961463B (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811156423.7A Active CN110961463B (en) | 2018-09-30 | 2018-09-30 | Anti-falling device and method for tail coil |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3532286B2 (en) * | 1995-03-31 | 2004-05-31 | Ｊｆｅスチール株式会社 | Coil binding / unwinding device and coil tail edge protection hardware |
| CN2799118Y (en) * | 2005-05-20 | 2006-07-26 | 鞍钢新轧钢股份有限公司 | Waste coil strip-flattening device |
| CN201832863U (en) * | 2010-09-17 | 2011-05-18 | 宝钢发展有限公司 | Mechanism for preventing steel roll tailing from falling off from saddle |
| CN202655381U (en) * | 2012-06-01 | 2013-01-09 | 宝钢工程技术集团有限公司 | Collapse prevention device of steel coil trolley |
| CN206240972U (en) * | 2016-12-10 | 2017-06-13 | 韩泰金属制品（天津）有限公司 | A kind of metal coiled material uncoiler |
-
2018
- 2018-09-30 CN CN201811156423.7A patent/CN110961463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3532286B2 (en) * | 1995-03-31 | 2004-05-31 | Ｊｆｅスチール株式会社 | Coil binding / unwinding device and coil tail edge protection hardware |
| CN2799118Y (en) * | 2005-05-20 | 2006-07-26 | 鞍钢新轧钢股份有限公司 | Waste coil strip-flattening device |
| CN201832863U (en) * | 2010-09-17 | 2011-05-18 | 宝钢发展有限公司 | Mechanism for preventing steel roll tailing from falling off from saddle |
| CN202655381U (en) * | 2012-06-01 | 2013-01-09 | 宝钢工程技术集团有限公司 | Collapse prevention device of steel coil trolley |
| CN206240972U (en) * | 2016-12-10 | 2017-06-13 | 韩泰金属制品（天津）有限公司 | A kind of metal coiled material uncoiler |
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| Publication number | Publication date |
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| CN110961463B (en) | 2021-05-14 |
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