CN2754765Y - Bar counter of hot-press bar production line - Google Patents
Bar counter of hot-press bar production line Download PDFInfo
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- CN2754765Y CN2754765Y CN 200420087992 CN200420087992U CN2754765Y CN 2754765 Y CN2754765 Y CN 2754765Y CN 200420087992 CN200420087992 CN 200420087992 CN 200420087992 U CN200420087992 U CN 200420087992U CN 2754765 Y CN2754765 Y CN 2754765Y
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Abstract
The utility model relates to an on-line bar material counter for a hot rolled bar production line, which belongs to the metallurgical machinery. The counter comprises a counting lead screw with a cone-shaped outer diameter, a main gear, a counting sensor, an alarm device for disordered bar material and a synchronous blanking mechanism. The counter can be dragged by a frequency conversion electrical motor and adopts a controlled angular displacement brake; otherwise, the counter is driven by a servo motor, and the system is controlled by a process control computer. The counter has the characteristics of simple equipment, convenient operation and reliable running; the utility model can also adjust the counting speed and ration grouping of bar material according to the rolling rate of the production line. Due to the adoption of the controlled angular displacement brake, the synchronous blanking mechanism, etc., the utility model thoroughly solves the common problem of inaccurate count for the bar material counter.
Description
The purpose of this utility model provide a kind of can be continuously bar by this device count automatically and divide into groups by setting requirement, and guarantee the quantity absolutely accurate of every group of bar, each organizes the quantity unanimity.
Affiliated technical field
Technical solutions of the utility model directly apply to the online heat treatment of rolled piece, belong to the rolling machinery field.
Background technology
At present, known hot rolled rod production line mainly exists two kinds of basic patterns with the hot rolled rod counter: machinery-sensor-computer system; CCD shooting-image pick-up card-Computer Analysis treatment system.
The hot rolled rod production line bar counting device of machinery-sensor-computer system wherein, be that a cover is used maximum hot rolled rod production line bar counting devices, this bar counting device structure is made up of counting leading screw, transmission device, photoelectric counting sensor and computer etc.Hot rolled rod is through the bar counting device time, rotating to such an extent that move in an orderly manner forward under the constraint of counting leading screw screw mandrel, utilizes sensor sensing to realize the purpose of counting by the quantity of counting the leading screw bar.But, at present the hot rolled rod production line with the bar counting device because the inaccurate problem of the inaccurate counting that causes of screw mandrel parking spot is counted in existence, especially before bar entered the counting leading screw, when existing if any crossing condition, will cause counting screw mandrel can not stop and count efficiently and accurately.Class bar counting device is neither can normally use for this of present domestic introduction, and most producer removes.
CCD shooting-image pick-up card-Computer Analysis treatment system is the more bar counting device of Recent study.Comprise: ccd video camera, Computer Image Processing and graphical analysis link are mainly finished the shooting to bar section after line tying.The effect of computer interface: the exchanges data of capture card and intercomputer, exchanges data between video input interface capture card and ccd video camera and high-speed a/d transition card are converted to digital picture with vision signal, convert analog image to through the D/A transition card digital picture after with Computer Processing again and export on display.The Computer Analysis treatment system is finished image and is handled and graphical analysis, stores simultaneously and adds up.Such bar counting device is owing to be to utilize the function of image analysis processing to obtain count results.Counting precision depends on makes an uproar to image filter, and the result of identification is handled and technology such as information fusion, and what also related to the bundled rear end face image of bar cuts apart, goes adhesion and counting work.Although it is about more than 99.5% that its accuracy also can reach,, therefore also just reduced its practical value owing to can not can not satisfy the requirement of the quantitative bundling of user according to setting the radical bundling.
Summary of the invention
In order to overcome the inaccurate problem of existing bar counting device counting screw mandrel parking spot, especially when bar enters counting and is in crossing condition before the leading screw and the deficiency that can't correctly count, the hot rolled rod production line bar counting device that the utility model provides, the bar accurate counting that production line can not only be imported continuously, and can be effectively by presetting number of packets, can also satisfy on-the-spot abominable working condition and the counting requirement under the not parallel state of bar, counting precision reaches 100%, this bar counting device is in the time of operate as normal, and counting precision no longer is subjected to various stochastic factor.
The utility model at the technical scheme that above-mentioned technical problem adopted is: the rotary power of counting screw mandrel that tilts to stretch out second section traversing stand is from variable-frequency motor and carrier chain, the screw thread of counting leading screw has played the effect that the bar of lack of alignment is cut apart in order and carried, that is: only deposit a no more than bar between the tooth of each pitch, be placed in the photoelectric counting sensor on the support of counting leading screw top, can sense by its below and be counted the quantity that leading screw is carried bar, counting leading screw rotating speed is determined by bar traversing speed on stand.The bar quantity that computer system will receive from the actual measurement of photoelectric counting sensor adds up, and controls the duty of variable-frequency motor with accumulation result and the corner parameter that is installed in the angular displacement sensor actual measurement on the counting screw mandrel carrier chain.The quantity of remembering when counter is during near desired value, computer successively sends to variable-frequency motor and slows down and cutoff command, this cutoff command according to the inertia of mechanical chain and variable-frequency motor in the corner of determining, brake under the control of computer with the angular displacement controllable brake that variable-frequency motor is coaxial, realize accurate stopping.
The technical solution of the utility model also comprises the synchronous blanking mechanism of bar that is arranged between second section traversing stand and the 3rd section traversing stand, two ends by the bar that falls on the counting leading screw must be fallen on the 3rd section traversing stand simultaneously, adjacent two root bars separate smoothly when just guaranteeing the leading screw stall, realize bar by presetting number of packets, blanking mechanism is exactly the mechanism that designs at by the bar asynchronism that falls on the counting leading screw synchronously.Before one end of bar ejected in the counting leading screw helicla flute, the other end required simultaneously or to have left second section check-out console, and after this bar is along the right-angle side downslide of tilting combined pin slideway, stopped and stopped gliding until being subjected to pin.This root bar on the counting leading screw, when the helicla flute that is rotated is discharged and fallen the 3rd period moment on the traversing stand, because of this end height of drop bigger, and the supporting role of middle slide is arranged, then the other end of bar is by the blocked state constitutes of pin on the type pin slideway that is combined, carry out the transition to the state that bar is crossed from the pin top, made whole bar fall into the 3rd section traversing stand simultaneously, reached the requirement of synchronous blanking.
The beneficial effects of the utility model are, owing to adopted angular displacement sensor can make counting leading screw parking spot controlled, guarantee that bar divides into groups accurately, flexibly, the employing of blanking mechanism synchronously, guaranteed to fall into simultaneously under any situation of bar the 3rd section traversing stand, avoid the intersection of transport process bar, realized the purpose of accurate counting.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
The front view of Fig. 1 bar counting device layout drawing.The 1-variable-frequency motor, 2-angular displacement controllable brake, 3-planetary reducer, second section traversing stand of 4-, the 5-universal coupling with spider, the 6-main shaft, the 7-angular displacement sensor, 8-counts leading screw, the 3rd section traversing stand of 9-, 10-photoelectric counting sensor, 11-base, 12-concrete foundation.
The vertical view of Fig. 2 bar counting device layout drawing.13-photoelectric counting sensor, the bar during the 14-counting is handled, 15-spindle bearing, 16-main shaft, 17-universal coupling with spider, 18-planetary reducer, 19-angular displacement controllable brake, 20-concrete foundation, 21-variable-frequency motor.
Fig. 3 counts screw structure figure.22-ladder taper hole, the 23-endoporus, the conical external diameter of 24-, 25-leading screw helical pitch t, the bar maximum diameter d that this leading screw of 26-transports,
Fig. 4 main shaft and angular displacement sensor component drawings.27-circular cone travelling gear is right, 28-taper roll bearing, 29-main shaft, bearing before the 30-double row self aligning spherical roller bearing, 31-main shaft, 32-angular displacement sensor, 33-main shaft rear support, 34-angular displacement sensor power transmission shaft.
The synchronous blanking mechanism of Fig. 5.Second section traversing stand of 35-, 36-counts leading screw, 37-bar to be counted, 38-middle slide, the bar in the 39-counting, the combined pin slideway of 40-, the oblique cover plate of 41-, whereabouts, 42-counting back bar, the 3rd section traversing stand of 43-, the bar behind the 44-counting.
The combined pin slide assemblies of Fig. 6.45-square slideway, 46-bar, 47-pin height h, 48-pin, the microscler bolt hole of 49-, 50-sunk screw.
The air-cooled metal shell 51-of Fig. 7 photoelectric counting sensor compressed air, 52-hose coupling, 53-case top lid, the cantilever lever of 54-support, 55-photoelectric counting sensor, 56-metal shell, 57-gas channel.
The specific embodiment
In Fig. 1 and Fig. 2, variable-frequency motor (1,21) by angular displacement controllable brake (2,19) and planetary reducer (3,18), and universal-joint-pin type universal connecting axle (5, the 17) main shaft (6), the spindle bearing (15) that are installed in base (11) have constituted the machine driven system that is arranged on below second section traversing stand (4).Cantilever is in tilted layout and is rotated around main shaft (6) under the driving of machine driven system by the counting leading screw (8) that second section traversing stand (4) stretches out below, the helicla flute on counting leading screw surface advances with the parallel together promotion bar of stand (4) (14), because the synchronous blanking mechanism that is provided with between second section traversing stand (4) and the 3rd section traversing stand (9) has guaranteed that bar can be simultaneously by falling into the 3rd section traversing stand (9) on counting leading screw (8) and the second section traversing stand (4).The photoelectric counting sensor (13) that is placed on the support (10) detects the quantity of counting the bar (14) in the surperficial helicla flute of leading screw (8) below it.The angular displacement sensor (7) that links to each other with main shaft (6) is being measured the actual rotational angle of main shaft, to guarantee accurate stopping.
Among Fig. 3, the counting leading screw with conical external diameter (24) is in tilted layout at second section traversing stand by main shaft (6,29) cantilever.Counting leading screw (8) and main shaft (6,29) connection is the conical shaft extension of the non-transmision end by main shaft and counting leading screw (8) is assembled together with going up ladder taper hole (22) cantilever that is provided with, and with bolt that the flange hole at the big end of main shaft circular cone shaft extension place is fixed with the screw of counting leading screw (8) relevant position, end, so that realize mounting or dismounting fast.It then is constant that counting leading screw (8) has conical external diameter, middle footpath and internal diameter, its helical pitch t (25) is different different because of the scope of the diameter of rod d (26) that the counting leading screw transports, the diameter d here is the maximum of the diameter of rod that can transport of this leading screw, and therefore every cover bar counting device all has the counting leading screw of several different leads to adapt to the requirement of different diameter of rod.The axle core of counting leading screw is provided with through hole (23), both can weight reduction, can improve the hardening depth after the heat treatment again.
Fig. 4 provided main shaft that the counting leading screw is installed and with structure and the syntagmatic of its related components.Main shaft (29) is installed in the interior rolling bearing of bearing (31) and main shaft rear support (33) before the main shaft, and this bearing type is double row self aligning spherical roller bearing (30) and taper roll bearing (28).The circular cone travelling gear that is arranged on the main shaft is linked together the angular displacement sensor power transmission shaft (34) in main shaft and the rear support to (27), and drives angular displacement sensor (32) rotation with the fixed drive ratio relation.Between the slow-speed shaft of main shaft that tilts and horizontally disposed planetary reducer (18) universal coupling with spider (17) has been installed, has been guaranteed compact conformation, stable drive, requirement reliably.
Among Fig. 5 and Fig. 6, represented to be arranged on counting leading screw (8,36) port of export, the i.e. synchronous blanking mechanism of bar between second section traversing stand (4) and the 3rd section traversing stand (43) and its combined pin slideway (40) structure, blanking mechanism comprises the tilting combined pin slideway (40) of fixed ruler baffle end synchronously, middle slide (38) and counting leading screw.The inclination angle of two slideways, height and position are adjustable.Combined pin slideway (40) has the pin (48) of microscler screw (49), is fixed together by the minor face of sunk screw (50) with square slideway (45).The height h (47) of pin protrusion slideway is greater than d/2 and could guarantees to block the downslide that diameter is the bar of d.Combined pin slideway (40), middle slide (38) and counting leading screw (8,36) helicla flute satisfies the height relationships of three strong points of bar: middle slide (38), combined pin slideway (40) and counting leading screw (8,36) are located on the same line the strong point of bar.When bar is walked to counting leading screw (8,36) terminal and when falling on the carrier chain on the 3rd section traversing stand (43), because of the point action of middle part inclined slip to bar, on the bar other end by the status transition that is blocked by pin (48) to crossing by pin (48) top of combined pin slideway (40), slide along middle slide (38), realize synchronous blanking function.After bar left the counting leading screw, through entering the 3rd section traversing stand (43) of the traversing stand of syllogic behind the synchronous blanking mechanism, the function of this section stand was a carrier chain during with low cruise, accepts the bar (44) that the counting leading screw is sent.After this batch bar (44) quantity reaches the expectation requirement, counting leading screw (8,36) stop operating, at this moment, carrier chain is transported to next station with maximal rate with this a collection of bar (44) whole, repeat to begin the bar that count pick up leading screw (8,36) is discharged with low speed again, transport the next group bar.
Among Fig. 7, the support of photoelectric counting sensor (55) is installed is made up of base anchor, column, cantilever lever (54), air-cooled metal shell (56), support is installed on the base (11) of bar counting device.The photoelectric counting sensor is installed in the metal shell on the support cantilever lever, referring to Fig. 7.Compressed air (51) imports in the gas channel (57) of metal shell inwall setting by the hose coupling (52) of case top lid (53), and constantly airflow flowing has realized the cooling to the photoelectric counting sensor.
In Fig. 1 and Fig. 2 embodiment,, sent to the traversing stand of syllogic in groups through the bar (37) after the cutting to length.The traversing speed of bar on first section traversing stand is minimum, and allows the average piling height not more than two layers of bar (37).After bar (37) enters second section traversing stand (4), because the speed of service of carrier chain is obviously greater than the velocity of conveying chain of first section traversing stand on the stand, the spacing of bar (37) is drawn back each other, gets ready for the bar in each helicla flute that enters its back counting leading screw (8) is no more than one.
Enter the preceding bar (37) of counting leading screw and at first will carry out the detection of overlap condition, judged whether the bar overlapping phenomenon.Being placed in, the height of carrier chain upper surface is 1.8～1.9 bars (37) diameters on the light emitted element of photoelectric sensor on traversing stand both sides and the traversing stand of optical path distance between the light receiving element.If crossover phenomenon has taken place bar, then the light that sends of light emitted element will inevitably be blocked before arriving receiving element.Receiving element means that then situation is normal to examining of light; Light receiving element loses the inspection of light, and then alarm sends the audio communication signal alarm, and operating personnel carry out manual intervention, handles the bar overlap problem.
The spacing that is in the bar (37) on second section traversing stand (4) is drawn back.Latter half of at this section stand, bar are had a down dip by table top by incision under the carrier chain effect and stretch out in the helicla flute of counting leading screw (8).The product of helical pitch (25) and its rotating speed of counting leading screw equals the carrier chain transporting velocity, parallel reach under the acting in conjunction of bar to be counted (14,37) carrier chain on the helicla flute of counting leading screw (8) and stand.The counting leading screw that is in tilted layout is with advancing bar (14,37) raise, created side's placed on it photoelectric counting sensor (13,55) on sustained height, carry out the advantage of count detection, avoided because of bar (14,37) the last error of distance between the photoelectric counting sensor (13,55) that causes of bending and the tested bar.
Be located at counting leading screw (8) top, reflective photoelectricity bar counting device (13,55) detection in real time is by the radical of the bar of test point, computer will be examined to such an extent that quantity adds up, the result who adds up compares with presetting every bundle bar radical, and when difference relatively was zero, control system was sent the instruction that the counting leading screw begins to brake, variable-frequency motor and angular displacement controllable brake begin braking, and braking procedure is finished in the permission angle range that the counting leading screw presets.Braking procedure allows the angle range of counting leading screw (8) between 750 °～1050 ° among the embodiment.The length of braking back rundown time is to satisfy the requirement that the 3rd section traversing stand (43) is input to last root bar of this batch next station.
Environment there is the harsh photoelectric counting sensor (13 that requires, 55) be installed in the metal shell (56) of bar counting device support upper cantilever bar outer end, the cantilever lever height (54) of its horizontal level and support is all transferred, this has just guaranteed that distance between photoelectric counting sensor (13,55) and the measured bar (39) is in the best.The hose coupling (52) of the case top lid (53) by photoelectric counting sensor (13,55), to metal shell (56) all around the gas channel of inwall feed compressed air and carry out air-cooledly, guarantee that photoelectric counting sensor (13,55) is in temperature constant state under to work.
The function of photoelectric counting sensor (13,55) is to survey bar (39) quantity of passing through successively along counting leading screw (8) helicla flute, simultaneously institute is surveyed data upload to computer.The quantity that adds up that computer will be surveyed is compared with presetting quantity, then sends cutoff command to variable-frequency motor (1) and angular displacement controllable brake (2) when difference is zero, and the executing agency of braking will finish braking in presetting angle.The length of counting leading screw rundown time can separately be as the criterion adjacent batch of bar with the 3rd section traversing stand.
Before one end of bar (39) ejects in the counting leading screw helicla flute, the other end requires must be or leave second section traversing stand (4) simultaneously, being bar glides along tilting combined pin slideway (40), stops and stops until being subjected to pin (48).Next at this root bar (39) of counting on the leading screw (8), the 3rd section traversing stand (9 discharged and fallen to the helicla flute that is rotated, 43) moment on, because of this end height of drop bigger, and because of the supporting role of middle slide (38), then the other end of bar (39) has carried out the transition to the state of crossing from pin (48) top by the blocked state constitutes of type pin slideway (40) pin (48) that is combined, make whole bar (39) fall into the 3rd section traversing stand (9,43) simultaneously.H=(0.6～0.7) d should be got greater than the radius (d/2) of bar (46) apart from the minimum constructive height (h) on slideway surface in pin (48) top of combined pin slideway (40) among the embodiment.
The transporting velocity of the 3rd section traversing stand (43) carrier chain has fast and slow two kinds of speed systems.When each batch bar began to count, this section carrier chain was the slowest to the transporting velocity of bar, and the piling height of bar on this section stand can reach 2～3 layers.When reaching, this batch bar quantity of being discharged by counting leading screw (8) sets when requiring, and counting leading screw (8) is when stopping operating, the 3rd section traversing stand (43) carrier chain movement velocity postpones to switch to maximum immediately after 1～2 second, after last root of this batch bar (44) is sent into next station, begin the slowest speed of service once more, and then repeat said process.Among the embodiment, the 3rd section traversing stand drive motors selected the alternating current impression two-speed motor for use.
In another embodiment of Fig. 1 and Fig. 2, the power source of mechanical system is selected driven by servomotor for use, because the rising of servomotor, braking ability are good, then needn't select the angular displacement controllable brake again for use.Other configuration requirement is a same embodiment fully.
Claims (7)
1. one kind is used for hot rolled rod production line bar counting device, it comprises the counting leading screw of conical external diameter, main drive, the angular displacement controllable brake, variable-frequency motor or servo drive motor, sensor for countering, angular displacement sensor, overlapping detection of bar and warning, formations such as synchronous blanking mechanism and process computer control, the counting leading screw that it is characterized in that becoming with horizontal plane the conical external diameter that the inclination angle arranges is through the planetary reducer speed change, be connected with variable-frequency motor or servo drive motor by the angular displacement controllable brake again, the sensor for countering that is arranged on counting leading screw side top is fixed by its packaged type support, angular displacement sensor or coaxial with main transmission, or link by mechanical chain and main shaft, before the overlapping warning device of bar was located at the inlet of counting leading screw, blanking mechanism had been located between second section traversing stand transporting bar and the 3rd section traversing stand synchronously.
2. bar counting device as claimed in claim 1, the external diameter that it is characterized in that the counting leading screw of conical external diameter is a truncated cone-shaped, middle footpath and internal diameter then are constants, its helical pitch is different different because of diameter of rod, therefore every cover counter all has the counting leading screw of several different leads so that adapt to the different requirement of diameter of rod, the counting leading screw is to be assembled together by the standard round taper shaft extension of main shaft cantilever and the conical axis hole of counting leading screw standard with being connected of main transmission main shaft, and with bolt that the screw of the flange hole at the big end of main shaft circular cone shaft extension place and relevant position, leading screw end is fixed, realize mounting or dismounting fast.
3. bar counting device as claimed in claim 1, it is characterized in that main drive is by main shaft, spindle bearing, the universal-joint-pin type universal connecting axle, planetary reducer, angular displacement controllable brake and base are formed, there are two different bearings of height to fix with the main shaft that horizontal plane becomes to be in tilted layout, adopted double row self aligning spherical roller bearing in the bearing, between the slow-speed shaft of main shaft that tilts and horizontally disposed planetary reducer universal coupling with spider is installed, the high speed shaft of planetary reducer by the angular displacement controllable brake or and variable-frequency motor, perhaps link with servo drive motor, the selection of drive motors pattern is required by the angular displacement control accuracy and determines that main drive is by on the steel construction base that is bolted to the integral body on the concrete foundation.
4. bar counting device as claimed in claim 1, the angular displacement sensor that its feature metering counting leading screw turns over angle value with count leading screw both can be coaxial, also can form the frame for movement that fixed drive ratio is arranged by driving-chain, angular displacement sensor both can be arranged on the slow-speed shaft side of planetary reducer, also can be arranged on the high speed shaft side of planetary reducer.
5. bar counting device as claimed in claim 1, it is characterized in that synchronous blanking mechanism is by the tilting combined pin slideway that is located at the fixed ruler baffle end, middle slide that the middle part is tilting and counting leading screw are formed, combined pin slideway, height relationships between middle slide and the counting leading screw three satisfies, the transport process of bar before falling into the output stand, one end is in the helicla flute of counting leading screw, the other end is in pin on the type pin slideway that is combined and blocks and do not glide, this moment is concerning bar, combined pin slideway, middle slide, the counting leading screw is on same the straight line, when bar one end has the counting leading screw to discharge, the other end of bar is crossed by the pin top of combined pin slideway because of the supporting role of middle slide, has realized that whole bar falls into the requirement on the 3rd section following traversing stand simultaneously, and the pin height of combined pin slideway can need to adjust flexibly by diameter of rod.
6. bar counting device as claimed in claim 1, it is characterized in that sensor for countering is made up of photoelectric counting sensor and adjustable trestle, the operating position of photoelectric counting sensor is determined by adjustable trestle, and can on the arbitrary height in the counting leading screw floor projection scope, adjust arbitrarily, the photoelectric counting sensor is placed in the metal shell of the cooling of can ventilating on the support.
7. bar counting device as claimed in claim 1, it is characterized in that the overlapping detection photoelectric sensor of bar is by light emitted with accept two parts and form, its plan-position is at the arrival end of counting leading screw and perpendicular with check-out console conveyer chain, and the height of the light path height carrier chain upper surface of light emitted is 1.8～1.9 diameter of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087992 CN2754765Y (en) | 2004-08-17 | 2004-08-17 | Bar counter of hot-press bar production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087992 CN2754765Y (en) | 2004-08-17 | 2004-08-17 | Bar counter of hot-press bar production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2754765Y true CN2754765Y (en) | 2006-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420087992 Expired - Fee Related CN2754765Y (en) | 2004-08-17 | 2004-08-17 | Bar counter of hot-press bar production line |
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| CN (1) | CN2754765Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662328A (en) * | 2012-03-27 | 2012-09-12 | 芜湖新兴铸管有限责任公司 | Method for steel rolling production line to automatically calculate production batch |
| CN109335126A (en) * | 2018-09-29 | 2019-02-15 | 郑州格锐特机械有限公司 | Horizontal movable type divides the method for support mechanism, point support machine and separating plastic support |
| CN117943494A (en) * | 2024-03-22 | 2024-04-30 | 常州富丽康精密机械有限公司 | Rolling equipment with force feedback function for cold-rolled screw rod production |
-
2004
- 2004-08-17 CN CN 200420087992 patent/CN2754765Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662328A (en) * | 2012-03-27 | 2012-09-12 | 芜湖新兴铸管有限责任公司 | Method for steel rolling production line to automatically calculate production batch |
| CN102662328B (en) * | 2012-03-27 | 2014-08-20 | 芜湖新兴铸管有限责任公司 | Method for steel rolling production line to automatically calculate production batch |
| CN109335126A (en) * | 2018-09-29 | 2019-02-15 | 郑州格锐特机械有限公司 | Horizontal movable type divides the method for support mechanism, point support machine and separating plastic support |
| CN117943494A (en) * | 2024-03-22 | 2024-04-30 | 常州富丽康精密机械有限公司 | Rolling equipment with force feedback function for cold-rolled screw rod production |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060201 Termination date: 20090917 |