CN105458021A - Photoelectric control system for primary cold drawing length of rebar - Google Patents
Photoelectric control system for primary cold drawing length of rebar Download PDFInfo
- Publication number
- CN105458021A CN105458021A CN201610017197.9A CN201610017197A CN105458021A CN 105458021 A CN105458021 A CN 105458021A CN 201610017197 A CN201610017197 A CN 201610017197A CN 105458021 A CN105458021 A CN 105458021A
- Authority
- CN
- China
- Prior art keywords
- cold drawn
- bar
- contactor
- hoist engine
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms
-
- 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
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F9/00—Straining wire
- B21F9/007—Straining wire to induce a plastic deformation of the wire
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to a photoelectric control system for primary cold drawing length of rebar, comprising a winch and a control structure, wherein the winch drives a cold drawing rod by a pulley block. The photoelectric control system is characterized in that the control structure comprises a photoelectric controller, a normal start contactor, an inverse start contactor and a piece of reflecting sticker; the winch is connected with the photoelectric controller respectively by the normal start contactor and the inverse start contactor; and the reflecting sticker is arranged on the cold drawing rod. The photoelectric control system has the advantages and positive effects of having no need for manual observation and safety custody, and saving labor cost; being uniform in cold drawing length, wherein the error is controlled to be mm grade; saving time and improving work efficiency; being low in electric shock risk due to adoption of safe voltage; reducing the possibility of breakage of cold drawn rebar to a certain degree and having certain help to safety risk and material saving; and being simple in structure and low in system cost.
Description
Technical field
The present invention relates to the technical field of steel bar meter, is a kind of reinforcing bar first time cold drawn length photo-electric control mechanism specifically.
Background technology
The making of cold drawn bar, needs twice cold drawing process.When first time is cold drawn, makes the inner tension of reinforcing bar exceed its yield point, design tension stress, and reach requirement cold-drawn rods, after maintenance slightly stops, shed load.
Specify in 5.3.3 bar and explanation in " concrete structure engineering construction quality accident specification ": bar straightening should adopt mechanical means, also can adopt cold drawn method.When adopting cold drawn method straightening reinforcing bar, the cold-drawn rods that the cold-drawn rods of HPB235 level reinforcing bar should not be greater than 4%, HRB335 level, HRB400 level and RRB400 level reinforcing bar should not be greater than 1%.
In practical operation, be all generally after reinforcing bar retrial is qualified, control cold-drawn rods by control of percentage elongation, in prior art, cold drawn bar elongation control method is: on cold drawn bar, weld place's pointer, cold drawn groove arranges scale, by manual observation, stops cold drawn after reaching assigned address.Because the collimation error, pointer rock and the signal transmission reason such as not in time, cold drawn length inaccuracy, error is for being generally ± 5cm.The reinforcing bar adopting this method cold drawn totally 150, ruptures 6, causes certain former material waste, and creates corresponding potential safety hazard.
Chinese patent, Full-automatic steel bar mfg. machine (application number: 95106257.3) disclose a kind of steel bar meter machine possessing cold drawn function, comprise computer control system, hydraulically powered cold drawn feeding, brake forming, cutting system, photoelectric measuring long counting, angular transducer etc.This technical scheme attempts to control steel bar cold-drawn by computer, but obviously inventor does not make more detailed design to technical scheme, and this patent finally also there is no corresponding mandate.
Summary of the invention
A kind of reinforcing bar first time cold drawn length photo-electric control mechanism, comprise hoist engine and control structure, hoist engine drives cold drawn bar by assembly pulley, described control structure comprises photoelectric controller, along opening contactor, inverse opening contactor and reflective paster, described hoist engine is connected with photoelectric controller with against opening contactor respectively by along opening contactor, and described reflective paster is arranged on cold drawn bar.
Described photoelectric controller comprises transformer, scattered reflection type optoelectronic switch and control contactor, and scattered reflection type optoelectronic switch is connected with transformer, control contactor respectively.
The workflow of described reinforcing bar first time cold drawn length photo-electric control mechanism, comprises the steps:
Step one, before system comes into operation, first adjusting cold draw rod positions, along starting hoist engine, when arriving the cold drawn position required, reflection plaster paper to be arranged on cold drawn bar and its reflective surface is corresponding with the photosurface of photoelectric controller;
Step 2, playbacked by cold drawn bar, when along when starting hoist engine, power along opening contactor adhesive, motor, along starting, affects cold drawn bar by assembly pulley, until reflective paster moves to the position corresponding with photoelectric controller;
The photosensitive rear close point action of step 3, photoelectric controller, control contactor power-off, motor shuts down, and completes the cold drawn work of requirement;
Step 4, inverse startup hoist engine, power against opening contactor adhesive, and motor is inverse to be started, and controls cold drawn bar and gets back to correct position.
The advantage that the present invention has and good effect comprise without the need to manual observation and safety custody, save labour turnover; Cold drawn length is unified, and control errors is in mm rank; Save time, improve work efficiency; Adopt safe voltage, electric shock risk is low; Reduce the probability of cold drawn bar fracture to a certain extent, have certain help to security risk and former material saving; Structure is simple, and system cost is low.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of reinforcing bar of the present invention first time cold drawn length photo-electric control mechanism.
Number in the figure is described as follows: 1, hoist engine; 2, along opening contactor; 3, against opening contactor; 4, transformer; 5, scattered reflection type optoelectronic switch; 6, control contactor.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described.
Working background: cold drawn bar model is HRB400 Φ 25mm, design tension stress is for being not less than 500MPa.The making of cold drawn bar, needs twice cold drawing process.When first time is cold drawn, makes the inner tension of reinforcing bar exceed its yield point (400N/mm2), design tension stress (500MPa), and reach requirement cold-drawn rods, after maintenance slightly stops, shed load.
Conceptual design: selected 5 tons of hoist engines coordinate 8 times of assembly pulleys, in cold drawn groove, carry out first time cold drawn, cold drawn one at every turn, joint length 62m, and control elongation is 2.17m(cold-drawn rods 3.5%).
A kind of reinforcing bar first time cold drawn length photo-electric control mechanism, comprise hoist engine 1 and control structure, hoist engine drives cold drawn bar by assembly pulley, described control structure comprises photoelectric controller, along opening contactor 2, inverse opening contactor 3 and reflective paster, described hoist engine 1 is connected with photoelectric controller with against opening contactor 3 respectively by along opening contactor 2, and described reflective paster is arranged on cold drawn bar; Described photoelectric controller comprises transformer 4, scattered reflection type optoelectronic switch 5 and control contactor 6, and scattered reflection type optoelectronic switch 5 is connected with transformer 4, control contactor 6 respectively.
Before system comes into operation, first adjusting cold draw rod positions, along starting hoist engine, when arriving the cold drawn position required, reflection plaster paper to be arranged on cold drawn bar and its reflective surface is corresponding with the photosurface of photoelectric controller;
Playbacked by cold drawn bar, when along when starting hoist engine, power along opening contactor adhesive, motor, along starting, affects cold drawn bar by assembly pulley, until reflective paster moves to the position corresponding with photoelectric controller;
The photosensitive rear close point action of photoelectric controller, control contactor power-off, motor shuts down, and now two cold drawn spacing are 64.17m, completes the cold drawn work of requirement;
Inverse startup hoist engine, powers against opening contactor adhesive, and motor is inverse to be started, and controls cold drawn bar and gets back to correct position.
When large-scale continuous production deformed bar, also can optimize further native system, as:
1, implement warning interlock, can give the alarm during operation hoist engine, remind not operation personnel to leave cold drawn region;
2, increase time switch, optoelectronic switch, automatically can control the stress retention time after cold drawn completing, then automatically be released into assigned address.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention with preferred embodiment openly as above, but, and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (3)
1. a reinforcing bar first time cold drawn length photo-electric control mechanism, comprise hoist engine and control structure, hoist engine drives cold drawn bar by assembly pulley, it is characterized in that: described control structure comprises photoelectric controller, along opening contactor, inverse opening contactor and reflective paster, described hoist engine is connected with photoelectric controller with against opening contactor respectively by along opening contactor, and described reflective paster is arranged on cold drawn bar.
2. reinforcing bar first time cold drawn length photo-electric control mechanism according to claim 1, it is characterized in that: photoelectric controller comprises transformer, scattered reflection type optoelectronic switch and control contactor, and scattered reflection type optoelectronic switch is connected with transformer, control contactor respectively.
3. reinforcing bar first time cold drawn length photo-electric control mechanism according to claim 1 and 2, is characterized in that: the workflow of reinforcing bar first time cold drawn length photo-electric control mechanism, comprises the steps:
Step one, before system comes into operation, first adjusting cold draw rod positions, along starting hoist engine, when arriving the cold drawn position required, reflection plaster paper to be arranged on cold drawn bar and its reflective surface is corresponding with the photosurface of photoelectric controller;
Step 2, playbacked by cold drawn bar, when along when starting hoist engine, power along opening contactor adhesive, motor, along starting, affects cold drawn bar by assembly pulley, until reflective paster moves to the position corresponding with photoelectric controller;
The photosensitive rear close point action of step 3, photoelectric controller, control contactor power-off, motor shuts down, and completes the cold drawn work of requirement;
Step 4, inverse startup hoist engine, power against opening contactor adhesive, and motor is inverse to be started, and controls cold drawn bar and gets back to correct position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017197.9A CN105458021B (en) | 2016-01-12 | 2016-01-12 | Reinforcing bar first time cold drawn length photo-electric control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017197.9A CN105458021B (en) | 2016-01-12 | 2016-01-12 | Reinforcing bar first time cold drawn length photo-electric control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458021A true CN105458021A (en) | 2016-04-06 |
| CN105458021B CN105458021B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610017197.9A Active CN105458021B (en) | 2016-01-12 | 2016-01-12 | Reinforcing bar first time cold drawn length photo-electric control mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6064722A (en) * | 1983-09-17 | 1985-04-13 | Kiyokuhou Seisen Kk | Wire drawing method |
| CN2068023U (en) * | 1990-05-25 | 1990-12-26 | 天津市第二房屋建筑工程公司机械站 | Automatic hard-drawn fixed length cutting device for reinforcing bar |
| JP2006051537A (en) * | 2004-08-16 | 2006-02-23 | Sumitomo Metal Ind Ltd | Manufacturing method for square tube |
| CN204583876U (en) * | 2015-03-12 | 2015-08-26 | 慈溪市神之翼电器厂 | A kind of bar cold-drawing machine guider |
| CN205362248U (en) * | 2016-01-12 | 2016-07-06 | 中交一航局第五工程有限公司 | Reinforcing bar is cold -drawing length photo -electric control mechanism for first time |
-
2016
- 2016-01-12 CN CN201610017197.9A patent/CN105458021B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6064722A (en) * | 1983-09-17 | 1985-04-13 | Kiyokuhou Seisen Kk | Wire drawing method |
| CN2068023U (en) * | 1990-05-25 | 1990-12-26 | 天津市第二房屋建筑工程公司机械站 | Automatic hard-drawn fixed length cutting device for reinforcing bar |
| JP2006051537A (en) * | 2004-08-16 | 2006-02-23 | Sumitomo Metal Ind Ltd | Manufacturing method for square tube |
| CN204583876U (en) * | 2015-03-12 | 2015-08-26 | 慈溪市神之翼电器厂 | A kind of bar cold-drawing machine guider |
| CN205362248U (en) * | 2016-01-12 | 2016-07-06 | 中交一航局第五工程有限公司 | Reinforcing bar is cold -drawing length photo -electric control mechanism for first time |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105458021B (en) | 2017-09-29 |
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