CN108544244B - Self-adaptive automatic shearing system for welding line of steel bar and steel band - Google Patents
Self-adaptive automatic shearing system for welding line of steel bar and steel band Download PDFInfo
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- CN108544244B CN108544244B CN201810725587.0A CN201810725587A CN108544244B CN 108544244 B CN108544244 B CN 108544244B CN 201810725587 A CN201810725587 A CN 201810725587A CN 108544244 B CN108544244 B CN 108544244B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a self-adaptive automatic shearing system for a welding line of a steel bar and steel band, which comprises a coil material straightening system driven by an asynchronous motor, wherein the steel bar wound on a steel bar coil is straightened by the coil material straightening system, a long material and a short material are welded into the steel bar and steel band by a welding system and then enter a shearing mechanism for shearing, a material storage buffer memory and a feedback system are also arranged between the shearing mechanism and the coil material straightening system, the coil material straightening system is matched with a synchronous feeding device by reasonable structural design, the material storage buffer memory and the feedback system are introduced into the moving track of the long material between the shearing mechanism and the coil material straightening system, the steel bar between the coil material straightening system and the synchronous feeding device can be subjected to certain discharge buffer memory, and further, the steel bar and steel band at a shearing process section can be temporarily stopped for shearing the steel bar and steel band without stopping the coil material straightening system, the safe and reliable operation of the system is ensured.
Description
Technical Field
The invention belongs to the technical field of production and manufacturing, and particularly relates to a self-adaptive automatic shearing P L C control system for a steel bar and steel strip shearing line.
Background
The market demand of the steel bar and steel belt is very large, the production efficiency is lower, the labor intensity of welding production is higher, and harmful electric welding smoke dust generated by the electric welding rod in the manual welding process has great harm to the health of staff.
At present, the programmable controller (P L C) technology is widely applied to the field of industrial automation, and in machining production, for the welding of batch workpieces, the traditional welding production line generally adopts manual feeding and manual control mechanical shearing, so that the time, the labor and the efficiency are consumed, the labor intensity of workers is high, and the welding quality is unstable.
The existing devices in the market, such as resistance welding machines, reinforcing steel bar straightening and shearing machines, transmission equipment and the like, have developed computer program control technology, are gradually applied to automatic production equipment, and have relatively mature technology. However, the market has no automatic production line for the products of the steel bar strip class, and particularly, the shearing process after welding can only be operated manually.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a self-adaptive automatic shearing system for a welding line of a reinforced steel strip, which is characterized in that a coil straightening system is matched with a synchronous feeding device through a reasonable structural design, and a storage buffer and feedback system is introduced into a moving track of a long material between the coil straightening system and the synchronous feeding device, so that a certain discharge buffer can be performed on the reinforced steel between the coil straightening system and the synchronous feeding device, and further, when a shearing process of the reinforced steel strip is performed, the steel strip at a shearing process section can be temporarily stopped for shearing, the coil straightening system does not need to be stopped, and the safe and reliable operation of the system is ensured.
In order to achieve the purpose, the invention adopts the technical scheme that the reinforced steel strip welding line self-adaptive automatic shearing system comprises a coil straightening system driven by an asynchronous motor, a reinforced steel wound on a reinforced steel coil is straightened by the coil straightening system, a long material and a short material are welded into a reinforced steel strip by a welding system and then enter a shearing mechanism for shearing, a storage buffer and feedback system is further arranged between the shearing mechanism and the coil straightening system, the reinforced steel sent out from the coil straightening system enters the storage buffer and feedback system by a roller conveying device, the storage buffer and feedback system comprises a lifting slider device, the reinforced steel is erected on the slider device, and the synchronous feeding device is arranged between the storage buffer and feedback system and the shearing mechanism, and the starting, stopping and feeding speed of the synchronous feeding device are controlled by a control system, the average feeding speed of the synchronous feeding device is the same as that of the coil straightening system.
The slider device of the storage caching and feedback system drives the stay wire type sensor in the moving process, the stay wire type sensor calculates the storage amount of the long material through displacement detection and feeds the storage amount back to the control system, and the control system adjusts the feeding speed of the long material synchronous feeding device according to the storage amount of the long material and the actual storage amount of the storage caching and feedback system.
The welding system is a resistance pressure welding system and comprises a resistance pressure welding device and an air cylinder which are connected, a welding contact of the resistance pressure welding device is connected with the air cylinder, the air cylinder is connected with a control system, when the resistance pressure welding device is used for welding, the two welding contacts of the resistance pressure welding device extrude the middle of the resistance pressure welding device, the air cylinder pushes the welding contacts to apply extrusion force, and a welding chuck of the resistance pressure welding device welds short materials and long materials in a resistance pressure welding mode.
And a proximity switch is arranged on the periphery of the resistance pressure welding system and connected with the control system, and if the proximity switch cannot detect short materials, a signal is sent to the control system.
The synchronous feeding device comprises a servo motor, a motor shaft of the servo motor is connected with a speed reducer, and the speed reducer is connected with the steel belt.
The control system is also used for adjusting the feeding speed of the synchronous feeding device of the steel bar and steel belt according to the storage value fed back by the storage cache and feedback system.
The synchronous feeding device further comprises an incremental encoder, the incremental encoder is connected with the control system and used for feeding back the displacement of the steel bar and steel strip, and a rotating shaft of the incremental encoder is connected with a roller for supporting the steel bar and steel strip to slide forwards.
The shearing mechanism is also used for shearing the long material between the two steel bar belts into the short material.
The control system is a P L C controller.
Compared with the prior art, the steel strip shearing and straightening device has the advantages that the coil straightening system is matched with the synchronous feeding device through reasonable structural design, the storage buffer and feedback system is introduced into the moving track of the long material between the coil straightening system and the synchronous feeding device, certain discharging buffer can be performed on the steel bars between the coil straightening system and the synchronous feeding device, and therefore the steel bars in the shearing process section can be temporarily stopped for shearing when the steel bars and the steel bars are sheared, the coil straightening system does not need to be stopped, safe and reliable operation of the system is guaranteed, and the steel bars are rolled and straightened by the shaper after being welded and then cut off by the shearing mechanism. The method can be used for shearing steel strips and preparing short section steel bars, and a batch of short section steel bars are prepared and stored in the feeding vibration disc before welding.
Furthermore, after one section of steel strip is welded, another section of steel strip should be welded by the resistance pressure welding system, namely the distance between two square frames of the two sections of steel strip is very small, so that the short section of the second square frame is limited and difficult to embed, a certain distance is arranged between the two sections of steel strip, and two long steel bars at the distance can be cut into the short section.
Furthermore, the P L C control system can be interlocked with the length of the steel bar and steel strip grids, automatic cutting and counting can be realized, and the system can adjust the longitudinal netting and shearing distance according to the change of the width of the net piece.
Drawings
Fig. 1 is a schematic view of the overall structure of a steel bar and strip welding line according to the present invention.
Fig. 2 is a partially enlarged schematic view of fig. 1.
In the figure: the device comprises a steel bar coil-1, a sensor-2, an asynchronous motor-3, a coil straightening system-4, a coil butt welding device-5, a positioning and pressing device-6, a roller conveying device-7, a storage buffer and feedback system-8, rollers-9, a synchronous feeding device-10, an incremental encoder-11, a steel bar and steel belt-12, a short material-13, a normally closed proximity switch-15, a resistance pressure welding system-16, a shearing mechanism-17 and a finished product discharging device-18
Detailed Description
The technical solutions in the embodiments of the present invention are further described in detail below with reference to the accompanying drawings, and all other embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments of the present invention belong to the novel protection scope of the present application.
In the embodiment of the invention, the control system adopts a P L C controller, the P L C controller is a Siemens S7-200smart controller, the steel bar and steel strip 12 and the short material 13 mentioned in the embodiment of the invention are composed, the appearance of the steel bar and steel strip is similar to a ladder, and the short piece constitutes a middle block of the steel bar and steel strip.
As shown in fig. 1 and 2, the present invention includes a coil straightening system 4 driven by an asynchronous motor 3, after the steel bar wound on a steel bar coil 1 is straightened by the coil straightening system 4, a long material and a short material are welded by a welding system to form a steel bar strip, and then the steel bar strip is sheared by a shearing mechanism 17 to form an independent steel bar strip product, wherein the long material is two long materials which are parallelly output as the steel bar strip by two steel bar coils 1, and the short material can be supported and welded between the two long materials; as shown in fig. 1, a sensor 2 is also arranged between the reinforcing steel bar coil 1 and the coil stock straightening system 4;
a material storage cache and feedback system 8 is further arranged between the shearing mechanism 17 and the coil straightening system 4, steel bars sent out from the coil straightening system 4 enter the material storage cache and feedback system 8 through the roller conveying device 7, the material storage cache and feedback system 8 comprises a lifting slide block device, the steel bars are erected on the slide block device, the slide block device moves up and down along with the storage amount of the long materials, when the slide block device moves up, the long materials can be driven to arch up, so that the storage amount of the material storage cache and feedback system 8 is increased, and otherwise, the storage amount of the material storage cache and feedback system 8 is reduced;
the synchronous feeding device 10 is arranged between the storage cache and feedback system 8 and the shearing mechanism 17, the start-stop and feeding speed of the synchronous feeding device 10 are controlled by the control system, when the steel bar steel strip is positioned at the shearing position of the shearing mechanism 17, the synchronous feeding device 10 stops feeding, after the shearing of the shearing mechanism 17 is finished, the synchronous feeding device 10 starts to continue feeding, and the average feeding speed of the synchronous feeding device 10 is the same as that of the coil straightening system 4;
the slide block device of the storage caching and feedback system 8 drives the stay wire type sensor in the moving process, the stay wire type sensor calculates the storage amount of the long material through displacement detection and feeds the storage amount back to the control system, and the control system adjusts the feeding speed of the long material synchronous feeding device according to the storage amount of the long material and the actual storage amount of the storage caching and feedback system 8.
In an optional embodiment of the invention, the welding system is a resistance pressure welding system, which comprises a resistance pressure welding device and an air cylinder which are connected, wherein a welding contact of the resistance pressure welding device is connected with the air cylinder, the air cylinder is connected with a control system, when the resistance pressure welding device is used for welding, the middle of two welding contacts of the resistance pressure welding device is extruded, the air cylinder pushes the welding contacts to apply extrusion force, and a welding chuck of the resistance pressure welding device welds the short material and the long material in a resistance pressure welding mode; in addition, in a certain embodiment, a proximity switch is arranged on the periphery of the resistance pressure welding system, the proximity switch is connected with the control system, and if the proximity switch cannot detect short materials, a signal is sent to the control system.
As shown in fig. 1, in an alternative embodiment of the present invention, a coil butt welding device 5 and a positioning and compressing device 6 are further disposed between the coil straightening system 4 and the roller conveying device 5, when a steel bar coil is removed, the coil straightening system 4 is stopped, a next steel bar coil is fed into the coil straightening system 4, a stub bar is straightened by the coil straightening system 4, and then the stub bar is butted with a tail of a previous steel bar coil and then compressed by the positioning and compressing device 6, and the welding device 5 is welded and fixed by the coil, so that the butt joint between the two steel bar coil coils is realized.
As shown in fig. 2, in a certain embodiment of the present invention, the control system is a P L C controller, the slider device in the storage buffer and feedback system 8 is connected to a pull-wire sensor, the slider device moves up and down due to the storage amount to drive the slider of the pull-wire sensor to move, so that the collected storage amount is sent to the P L C controller, and the P L C controller can adjust the feeding speed of the coil straightening system 4 and the synchronous feeding device 10 for the steel strip according to the storage amount fed back by the storage buffer and feedback system 8, so that the storage amount in the storage buffer and feedback system 8 is within an appropriate range.
The roller 9 is provided with an incremental encoder 11, when the reinforcing steel bars are sent to the specified position of the resistance pressure welding system 16, the coil straightening system 4 and the roller 9 are stopped, the storage amount in the storage cache and feedback system 8 is increased possibly due to the continuous action of the coil straightening system 4 in the stopping process, and then the P L C controller can adjust the straightening speed of the coil straightening system 4 according to the fed storage amount value, the coil straightening system 4 and the roller 9 continue to operate after the welding is finished, and the roller is stopped at the next specified position.
In one embodiment of the present invention, a shaping and rolling mechanism is disposed between the welding system and the shearing mechanism 17, and after the welding of the steel strip is completed, the steel strip is rolled and straightened by the shaping machine and then cut by the shearing mechanism 17. The shearing mechanism 17 can be used for shearing steel strips and preparing short section steel bars, and a batch of short sections are prepared and stored in the short section feeding device 14 before welding. After one section of steel bar strip is welded, another section of steel bar strip should be welded immediately, namely the distance between two square frames of the two sections of steel bar strips is very small, so that the short section of the second square frame is limited and difficult to embed, therefore, a certain distance is arranged between the two sections of steel bar strips, and two long steel bars at the distance can be cut into the short section. After being welded, the steel strips pass through a shaping device and are sent to a shearing mechanism 17, the displacement of the steel bar is calculated by an incremental encoder 11, when the displacement of the steel bar is increased to the length of one steel strip, namely, one steel strip is a finished product, and then the steel strip is cut off by the shearing mechanism 17 and then discharged; the invention also comprises a finished product discharging device 18 which is connected with a control driving device, and the control driving device can enable the flat plate on the finished product discharging device 18 to incline towards one side of the long edge.
In the invention, the production rhythm of each 2 steel bars (no matter long or short) controlled by a steel bar welding line self-adaptive automatic shearing P L C control system is about 120 seconds, and the number of the steel bars (in 7 hours) is about 420, relative to manual welding, the flatness of the steel bar welding line on the steel bars (especially short steel bars) is regular in appearance, the stability of the welding point and the welding shearing standard meet more than 0.3 times of the yield force of the steel bars, a roller 9 is provided with an incremental encoder 11, when the steel bars are sent to a welding designated position, a straightener and the roller 9 are stopped, the steel bars are continuously operated after being welded, the steel bars are stopped at the next designated position, the steel bar welding line self-adaptive automatic shearing P L C control system, the displacement taken by the steel bars is calculated by the incremental encoder 11, when the steel bar displacement is increased to the length of one steel bar, a steel bar is a finished product, then a shearing mechanism 17 cuts the steel bar, a finished product discharging device 18 adopts 6 flat plates, the finished product discharging device is positioned after the shearing mechanism 17, the steel bar is inclined, and the steel bar discharging device is driven to be discharged to the long side of the flat plate, so that the steel bar can be reset to one long side after.
In one embodiment, a proximity switch 15 is arranged on the periphery of the resistance pressure welding system 16, the proximity switch 15 is connected with the control system, and if the proximity switch 15 cannot detect short materials, a signal is sent to the control system.
The proximity switch is classified into a normally open type proximity switch that is open when not operated (the sensing portion is not shielded) and a normally closed type proximity switch that is closed when the proximity switch is operated (the sensing portion is shielded). The normally closed proximity switch is closed when not operated (the sensing portion is not shielded), and is open when the proximity switch is operated (the sensing portion is shielded).
In this embodiment, a normally closed proximity switch can be selected, and when the proximity switch 15 detects that short materials are not provided during welding, the proximity switch sends a signal to the control system, so that the control system can process the short materials in time to avoid welding errors. Optionally, the control system is shut down and an alarm device is activated.
Claims (9)
1. The self-adaptive automatic shearing system for the welding line of the steel bar and steel strip is characterized by comprising a coil stock straightening system (4) driven by an asynchronous motor (3), wherein the steel bar wound on a steel bar coil (1) is straightened by the coil stock straightening system (4), a long material and a short material are welded into the steel bar and steel strip by a welding system and then enter a shearing mechanism (17) for shearing, a storage buffer and feedback system (8) is further arranged between the shearing mechanism (17) and the coil stock straightening system (4), the steel bar sent out from the coil stock straightening system (4) enters the storage buffer and feedback system (8) through a roller conveying device (7), the storage buffer and feedback system (8) comprises a lifting slider device, the steel bar is erected on the slider device, and the self-adaptive automatic shearing system further comprises a synchronous feeding device (10) arranged between the storage buffer and feedback system (8) and the shearing mechanism (17), the start-stop and feeding speed of the synchronous feeding device (10) are controlled by the control system, and the average feeding speed of the synchronous feeding device (10) is the same as that of the coil straightening system (4).
2. The adaptive automatic shearing system for the welding line of the steel bar strip as claimed in claim 1, wherein the slider device of the storage buffer and feedback system (8) drives the stay wire type sensor during the movement, the stay wire type sensor calculates the storage amount of the long material through displacement detection and feeds the storage amount back to the control system, and the control system adjusts the feeding speed of the long material synchronous feeding device according to the storage amount of the long material and the actual storage amount of the storage buffer and feedback system (8).
3. The adaptive automatic shearing system for welding lines of steel bars according to claim 1, wherein the welding system is a resistance pressure welding system, and comprises a resistance pressure welding device and a cylinder, the welding contact of the resistance pressure welding device is connected with the cylinder, the cylinder is connected with the control system, when the resistance pressure welding device is used for welding, the two welding contacts of the resistance pressure welding device press the middle, the cylinder pushes the welding contact to apply the pressing force, and the welding chuck of the resistance pressure welding device welds the short material and the long material in a resistance pressure welding mode.
4. The adaptive automatic shearing system for welding lines of steel bars with steel bars as claimed in claim 1, wherein a proximity switch is arranged at the periphery of the resistance pressure welding system, the proximity switch is connected with the control system, and if the proximity switch can not detect short materials, a signal is sent to the control system.
5. The adaptive automatic shearing system for welding lines of steel bars according to claim 1, wherein the synchronous feeding device (10) comprises a servo motor, a motor shaft of the servo motor is connected with a speed reducer, and the speed reducer is connected with the steel bars.
6. The adaptive automatic shearing system for the welding line of the steel bar strips as claimed in claim 1, wherein the control system is further configured to adjust the feeding speed of the synchronous feeding device (10) of the steel bar strips according to the storage value fed back by the storage buffer and feedback system (8).
7. The adaptive automatic shearing system for the welding line of the steel bar strip as claimed in claim 1, wherein the synchronous feeding device (10) further comprises an incremental encoder (11), the incremental encoder (11) is connected with the control system for feeding back the displacement of the steel bar strip, and a rotating shaft of the incremental encoder (11) is connected with a roller (9) for supporting the steel bar strip to slide forwards.
8. The adaptive automatic shearing system for welding line of steel bar strip according to claim 1, wherein the shearing mechanism 17 is further configured to shear the long material into the short material (13) between two steel bar strips (12).
9. The adaptive automatic shearing system for welding wire of steel bar strip as claimed in claim 1, wherein the control system is a P L C controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810725587.0A CN108544244B (en) | 2018-07-04 | 2018-07-04 | Self-adaptive automatic shearing system for welding line of steel bar and steel band |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810725587.0A CN108544244B (en) | 2018-07-04 | 2018-07-04 | Self-adaptive automatic shearing system for welding line of steel bar and steel band |
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| CN108544244A CN108544244A (en) | 2018-09-18 |
| CN108544244B true CN108544244B (en) | 2020-07-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111730342B (en) * | 2020-07-01 | 2022-03-18 | 俊杰机械(深圳)有限公司 | Online shearing and welding machine for steel strip coil stock |
| CN113427206A (en) * | 2021-06-08 | 2021-09-24 | 上海皮埃夫西金属制品有限公司 | Processing technology of sealing strip framework |
| CN113953662B (en) * | 2021-10-14 | 2024-05-28 | 上海华常智能系统有限公司 | Intelligent cold rolling production line laser welding machine equipment |
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| DE59004251D1 (en) * | 1990-10-20 | 1994-02-24 | Bwg Bergwerk Walzwerk | Band welding machine. |
| CN100478123C (en) * | 2007-03-22 | 2009-04-15 | 南京赛彤铁路电气化有限公司 | Stainless-steel band special apparatus for steel-aluminum composite contact rail |
| CN101695732A (en) * | 2009-10-29 | 2010-04-21 | 周保民 | Application method of screw wire rod and reinforcement bar straightener |
| CN102029337A (en) * | 2010-11-27 | 2011-04-27 | 营口东邦冶金设备耐材有限公司 | Straightening, shearing and bending machine for steel bars |
| CN102909563B (en) * | 2012-10-26 | 2015-08-19 | 济南天辰铝机制造有限公司 | Section steel digital control saw, brill, weldering integrated production line |
| CN103736835A (en) * | 2013-07-04 | 2014-04-23 | 天津格润科农冷弯有限公司 | Greenhouse water tank framework on-line cold roll forming technology |
| CN104209432B (en) * | 2013-07-30 | 2016-03-23 | 河北骄阳丝网设备有限责任公司 | Full-automatic reinforcing mesh welding production line |
| CN104785618A (en) * | 2014-08-07 | 2015-07-22 | 深圳市穹明科技有限公司 | Automatic single-sided metal composite wallboard producing method |
| CN204504073U (en) * | 2015-03-26 | 2015-07-29 | 中国建筑科学研究院建筑机械化研究分院 | A kind of bar straightening bending production device |
| CN105382149B (en) * | 2015-12-02 | 2017-05-31 | 湖南三一快而居住宅工业有限公司 | A kind of reinforcing mesh welding production line |
| CN105855900B (en) * | 2016-06-17 | 2017-12-08 | 唐山胜利机械制造有限公司 | Plane steel bar truss welding equipment |
| CN205950251U (en) * | 2016-08-09 | 2017-02-15 | 浙江正泰电器股份有限公司 | Dash and weld complex machining device |
| CN206010412U (en) * | 2016-08-31 | 2017-03-15 | 建科机械（天津）股份有限公司 | A kind of steel mesh welding equipment |
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