CN108285968A - A kind of guipure furnace apparatus for shaft-like workpiece heat treatment process - Google Patents
A kind of guipure furnace apparatus for shaft-like workpiece heat treatment process Download PDFInfo
- Publication number
- CN108285968A CN108285968A CN201810228485.8A CN201810228485A CN108285968A CN 108285968 A CN108285968 A CN 108285968A CN 201810228485 A CN201810228485 A CN 201810228485A CN 108285968 A CN108285968 A CN 108285968A
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- Prior art keywords
- shaft
- main frame
- drive shaft
- feeding
- workpiece
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process in field, including furnace body, further include and the mating installation of furnace body, for shaft-like workpiece to be sent into the feeding conveying belt mechanism in furnace body from furnace body charging end position, it further include mobile feeding component corresponding with feeding conveying belt mechanism feeding end position, the movable type feeding component includes main frame, further include being mounted on the downside of main frame, two pairs of idler wheels for supportting ground, it further include middle shaft, carriage, driving motor, drive shaft, driven roller, flexible conveyer belt, driven voller, controller.Can be fitly by shaft-like workpiece marshalling, and be not easy to scald operator.
Description
Technical field
The present invention relates to the meshbeltfurnace technical fields for heat treatment, more particularly to are used for shaft-like workpiece heat treatment process
Guipure furnace apparatus.
Background technology
Meshbeltfurnace is the important component in heat treatment process comprising furnace body, further include it is with the mating installation of furnace body,
For shaft-like workpiece to be sent into the feeding conveying belt mechanism in furnace body from furnace body charging end position.
But be all made of artificial mode at present and shaft-like workpiece is placed in feeding conveying belt mechanism, lead to axis class work
Part cannot be fitly arranged in feeding conveying belt mechanism, and furnace body charging end position can give out a large amount of heat, be easy
Scald operator.
Invention content
The object of the present invention is to provide a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process, can be fitly by axis
Class workpiece marshalling, and be not easy to scald operator.
The object of the present invention is achieved like this：A kind of guipure furnace apparatus for shaft-like workpiece heat treatment process, including
Furnace body further includes that feeding with the mating installation of furnace body, for shaft-like workpiece to be sent into from furnace body charging end position in furnace body is defeated
Tape-feed, further includes mobile feeding component corresponding with feeding conveying belt mechanism feeding end position, in the movable type
Expect that component includes main frame, further includes being mounted on two pairs of idler wheels on the downside of main frame, for supportting ground, further include middle shaft, defeated
Send frame, driving motor, drive shaft, driven roller, flexible conveyer belt, driven voller, controller；
The middle shaft is horizontally disposed and fixation is inserted on main frame, during described carriage one end longitudinally can be rotatably sleeved on
Horizontality is in shaft and in feeding, the driving motor is mounted on carriage and is controlled by the controller, in described
The axis of shaft and the axis of drive shaft are mutually parallel, and the drive shaft is horizontally disposed and is pivotally mounted on carriage
Free end on, the output main shaft of the driving motor coordinates with the transmission of one shaft end of drive shaft, and the driven roller coaxial package exists
In drive shaft, the driven voller coaxial package is in middle shaft and can be rotated around the axis of middle shaft, the flexible conveyer belt
It twines and is connected in driving roller and follower roller, the flexible conveyer belt lateral surface is equidistantly equipped with a plurality of parallel with the axis of middle shaft
Limit batten, form the placing groove that can place shaft-like workpiece, and the width of placing groove between the limit battens of arbitrary neighborhood two
It is adapted with the outer diameter of shaft-like workpiece；
The carriage, which is matched, is arranged with promotion that carriage can be driven longitudinally to be rotated around middle shaft, being controlled by the controller
Mechanism；
The main frame is equipped with arching trajectory hole, and the drive shaft is movably through arching trajectory hole, and arching trajectory
The center of circle in hole is overlapped with the axis of middle shaft, and the lower end position of the arching trajectory hole, which is equipped with, is used to support drive shaft, arc
The upper end position of the supporting arc plate of shape structure, the arching trajectory hole is equipped with upper discharge position position-limit mechanism, and the drive shaft is upper
Upper end position in arching trajectory hole when material, the drive shaft in blanking the lower end position in arching trajectory hole and with branch
Support arc plate mutually reclines.
Compared with prior art, the beneficial effects of the present invention are：It can be fitly by shaft-like workpiece marshalling, and not
Easily scald operator, before feeding, may make carriage to be in horizontality, then by shaft-like workpiece under the control of hoisting mechanism
Be placed in placing groove, when all placing grooves on the upside of flexible conveyer belt pile shaft-like workpiece, can the entire main frame of hand push, make
Primary frame is close to feeding conveying belt mechanism so that flexible conveyer belt is in the position directly above of feeding conveying belt mechanism, then
Carriage is driven to be rotated down around transfer axis so that carriage tilts using hoisting mechanism so that the discharge end of flexible conveyer belt
Face and close to feeding conveying belt mechanism, then starts driving motor so that driven roller, driven voller, flexible conveyer belt carry out same
Step movement, several rows of shaft-like workpiece is constantly discharged into feeding conveying belt mechanism by flexible conveyer belt, with feeding conveying belt
Mechanism is constantly moved to furnace body, and shaft-like workpiece can fitly be arranged in feeding conveying belt mechanism and fitly enter in furnace body
Portion；Aforesaid operations can be repeated, and can not only ensure that shaft-like workpiece can be regularly arranged in feeding conveying belt mechanism, and
And operator can stand and carry out feeding operation after mobile feeding component, can prevent the hot gas of furnace body feed end from emerging directly
Scald human body.
As a further improvement on the present invention, above-mentioned upper discharge position position-limit mechanism includes electric pushrod, pushes away closing piece, horizontal leads
Rail, V shaped slab, buffer plate, soft block, pressure sensor, the cross rail horizontal extension and are fixed on main frame, the electricity
Dynamic push rod is mounted on main frame and is controlled by the controller, and the closing piece that pushes away is slidably mounted on cross rail, described to push away lock
Block is connected with the telescopic rod of electric pushrod and drive shaft is locked and supported in feeding, the cross rail face arching trajectory hole
Inner circle side, the V shaped slab is fixed on main frame and the outer circle side of its inside groove face arching trajectory hole, described to push away closing piece face V
The inside groove of shape plate and need lock drive axle position when be inserted into V shaped slab inside groove in, the buffer plate is movably installed
Upper end position on main frame and with arching trajectory hole is corresponding, and the buffer plate in feeding just against driving
Axis, the pressure sensor are mounted on main frame and are connected with controller, and the buffer plate is passed by soft block and pressure
The induction end of sensor is connected.Need lock drive shaft when, push away closing piece under the driving of electric pushrod across arching trajectory hole simultaneously
Drive shaft is supported, the weight of carriage when can share discharge, V shaped slab can further enhance the accuracy for pushing away closing piece positioning, and
And when buffer plate abuts against drive shaft, pressure sensor will produce pressure signal, can reflect that carriage has rotated to
Upper discharge position, wherein soft block can adequately protect pressure sensor.
As a further improvement on the present invention, above-mentioned hoisting mechanism is controlled by the controller, is mounted on main frame
Promotion motor, further include horizontal-extending, the hoisting drum that is pivotally mounted on main frame, further include being wrapped in
Traction rope on hoisting drum peripheral side, described traction rope one end are connected with carriage, it is described promoted motor output main shaft with
The shaft end transmission cooperation of hoisting drum.Promoting motor can drive hoisting drum to be rotated, will pass through traction rope by carriage
Lift or puts down.
As a further improvement on the present invention, the main frame be equipped with for obstruct furnace body direction hot-fluid, by heat-insulated
Thermal insulation board made of material.It can preferably stop the hot-fluid of furnace body feed end.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the mobile feeding component of the present invention.
Fig. 2 is the external structure schematic diagram of the mobile feeding component of the present invention.
Fig. 3 is the vertical view in Fig. 2.
Fig. 4 is the portions the A enlarged drawing in Fig. 2.
Fig. 5 is the control planning schematic diagram of the present invention.
Wherein, 1 mobile feeding component, 101 main frames, 101a arching trajectory holes, 102 idler wheels, 103 carriages, in 104
Shaft, 105 driving motors, 106 drive shafts, 107 driven rollers, 108 flexible conveyer belts, 109 driven vollers, 110 limit battens, 111
Placing groove, 112 promote motors, and 113 hoisting drums, 114 traction ropes, 115 thermal insulation boards, 116 electric pushrods, 117 push away closing piece, and 118
Cross rail, 119V shape plates, 120 supporting arc plates, 121 buffer plates, 122 soft blocks, 123 pressure sensors, 2 feeding conveying belt machines
Structure, 3 furnace bodies, 4 shaft-like workpieces, 5 controllers.
Specific implementation mode
As shown in Figs. 1-5, a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process, including furnace body 3, further include with
3 mating installation of furnace body, for by shaft-like workpiece 4 from furnace body 3 feed end position be sent into furnace body 3 in feeding conveying belt mechanism 2,
Further include mobile feeding component 1 corresponding with 2 feeding end position of feeding conveying belt mechanism, mobile feeding component 1 includes
Main frame 101 further includes being mounted on the downside of main frame 101, two pairs of idler wheels 102 for support ground, further include middle shaft 104,
Carriage 103, driving motor 105, drive shaft 106, driven roller 107, flexible conveyer belt 108, driven voller 109, controller 5.
Shaft 104 is horizontally disposed among the above and fixation is inserted on main frame 101, and 103 one end of carriage can longitudinally rotate
Ground is sleeved in middle shaft 104 and is in horizontality in feeding, and driving motor 105 is mounted on carriage 103 and controlled
Device 5 processed controls, and the axis of middle shaft 104 and the axis of drive shaft 106 are mutually parallel, and drive shaft 106 is horizontally disposed and can be around axis
It is rotationally mounted on the free end of carriage 103, output main shaft and the transmission of 106 1 shaft end of drive shaft of driving motor 105 are matched
It closes, for 107 coaxial package of driven roller in drive shaft 106,109 coaxial package of driven voller is in middle shaft 104 and can surround transfer
The axis of axis 104 rotates, and flexible conveyer belt 108, which twines, to be connected in driven roller 107 and driven voller 109,108 lateral surface of flexible conveyer belt
The a plurality of limit batten 110 parallel with the axis of middle shaft 104 be equidistantly installed, two limit battens 110 of arbitrary neighborhood it
Between formed and can place the placing groove 111 of shaft-like workpiece 4, and the width of placing groove 111 is adapted with the outer diameter of shaft-like workpiece 4.
Above-mentioned carriage 103 is can driving carriage 103 longitudinally to be rotated around middle shaft 104, controlled with being arranged with
The hoisting mechanism that device 5 processed controls.
Above-mentioned main frame 101 is equipped with arching trajectory hole 101a, and drive shaft 106 is movably through arching trajectory hole
101a, and the center of circle of arching trajectory hole 101a is overlapped with the axis of middle shaft 104, the lower end position peace of arching trajectory hole 101a
Equipped with drive shaft 106, arcuate structure supporting arc plate 120 is used to support, the upper end position of arching trajectory hole 101a is equipped with upper
Discharge position position-limit mechanism, upper end position of the drive shaft 106 in feeding in arching trajectory hole 101a, drive shaft 106 is in blanking
When the lower end position in arching trajectory hole 101a and recline with 120 phase of supporting arc plate.
Before feeding, carriage 103 may make to be in horizontality under the control of hoisting mechanism, then by shaft-like workpiece 4
Be placed in placing groove 111, when all placing grooves 111 of the upside of flexible conveyer belt 108 pile shaft-like workpiece 4, can hand push it is whole
A main frame 101 so that main frame 101 is close to feeding conveying belt mechanism 2 so that flexible conveyer belt 108 is in feeding conveying belt
Then the position directly above of mechanism 2 drives carriage 103 to be rotated down around middle shaft 104 using hoisting mechanism so that flexible
The discharge end face of conveyer belt 108 and close to feeding conveying belt mechanism 2, then starts driving motor 105 so that driven roller 107,
Driven voller 109, flexible conveyer belt 108 synchronize movement, and flexible conveyer belt 108 constantly discharges several rows of shaft-like workpiece 4
Onto feeding conveying belt mechanism 2, as feeding conveying belt mechanism 2 is constantly moved to furnace body 3, shaft-like workpiece 4 can be arranged fitly
In feeding conveying belt mechanism 2 and fitly enter inside furnace body 3.
Above-mentioned upper discharge position position-limit mechanism includes electric pushrod 116, pushes away closing piece 117, cross rail 118, V shaped slab 119, buffers
Backing plate 121, soft block 122, pressure sensor 123,118 horizontal extension of cross rail and are fixed on main frame 101, electric pushrod
116 are mounted on main frame 101 and are controlled by controller 5, push away closing piece 117 and are slidably mounted on cross rail 118, push away closing piece
117 are connected with the telescopic rod of electric pushrod 116 and drive shaft 106,118 face curved track of cross rail are locked and supported in feeding
The inner circle side of mark hole 101a, V shaped slab 119 is fixed on main frame 101 and the outer circle side of its inside groove face arching trajectory hole 101a,
It pushes away the inside groove of 117 face V shaped slab 119 of closing piece and is inserted into the inside groove of V shaped slab 119 when needing to lock 106 position of drive shaft, delayed
It rushes backing plate 121 and is movably installed on main frame 101 and corresponding with the upper end position of arching trajectory hole 101a, and buffer
Backing plate 121 in feeding just against drive shaft 106, pressure sensor 123 be mounted on main frame 101 and with 5 phase of controller
Even, buffer plate 121 is connected by soft block 122 with the induction end of pressure sensor 123.When needing to lock drive shaft 106,
It pushes away closing piece 117 and across arching trajectory hole 101a and supports drive shaft 106 under the driving of electric pushrod 116, discharge can be shared
When carriage 103 weight, V shaped slab 119 can further enhance the accuracy for pushing away the positioning of closing piece 117, and in buffer plate 121
When abutting against drive shaft 106, pressure sensor 123 will produce pressure signal, can reflect that carriage 103 has rotated to feeding
Position, wherein soft block 122 can adequately protect pressure sensor 123.
Above-mentioned hoisting mechanism includes promotion motor 112 controlled by controller 5, on main frame 101, further includes
Hoisting drum 113 that is horizontal-extending, being pivotally mounted on main frame 101, further includes being wrapped in hoisting drum 113
Traction rope 114 on peripheral side, 114 one end of traction rope are connected with carriage 103, promote output main shaft and the promotion of motor 112
The shaft end transmission cooperation of reel 113.Promoting motor 112 can drive hoisting drum 113 to be rotated, will pass through traction rope 114
Carriage 103 is lifted or put down.
Above-mentioned main frame 101 is equipped with for obstructing 3 direction hot-fluid of furnace body, thermal insulation board 115 made of heat-barrier material.
It can preferably stop the hot-fluid of 3 feed end of furnace body.
The invention is not limited in above-described embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing performing creative labour
A little to replace and deform, these are replaced and deformation is within the scope of the invention.
Claims (4)
1. a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process, including furnace body（3）, further include and furnace body（3）It is mating
Installation, for by shaft-like workpiece（4）From furnace body（3）It feeds end position and is sent into furnace body（3）Interior feeding conveying belt mechanism（2）,
It is characterized in that：Further include and feeding conveying belt mechanism（2）The corresponding mobile feeding component of feeding end position（1）, described
Mobile feeding component（1）Including main frame（101）, further include being mounted on main frame（101）Downside, for support ground two couples
Idler wheel（102）, further include middle shaft（104）, carriage（103）, driving motor（105）, drive shaft（106）, driven roller
（107）, flexible conveyer belt（108）, driven voller（109）, controller（5）；
The middle shaft（104）Horizontally disposed and fixation is inserted into main frame（101）On, the carriage（103）One end can indulge
To being rotatably sleeved on middle shaft（104）Above and in feeding it is in horizontality, the driving motor（105）Mounted on conveying
Frame（103）Above and by controller（5）Control, the middle shaft（104）Axis and drive shaft（106）Axis be mutually parallel,
The drive shaft（106）It is horizontally disposed with and is pivotally mounted on carriage（103）Free end on, the driving motor
（105）Output main shaft and drive shaft（106）The transmission cooperation of one shaft end, the driven roller（107）Coaxial package is in drive shaft
（106）On, the driven voller（109）Coaxial package is in middle shaft（104）Above and middle shaft can be surrounded（104）Axis rotation,
The flexible conveyer belt（108）It twines and is connected on driven roller（107）And driven voller（109）On, the flexible conveyer belt（108）Lateral surface
A plurality of and middle shaft is equidistantly installed（104）The parallel limit batten of axis（110）, two limit battens of arbitrary neighborhood
（110）Between formed can place shaft-like workpiece（4）Placing groove（111）, and placing groove（111）Width and shaft-like workpiece（4）
Outer diameter be adapted；
The carriage（103）Carriage can be driven with being arranged with（103）Around middle shaft（104）It is longitudinally being rotated, by
Controller（5）The hoisting mechanism of control；
The main frame（101）It is equipped with arching trajectory hole（101a）, the drive shaft（106）Movably through arching trajectory
Hole（101a）, and arching trajectory hole（101a）The center of circle and middle shaft（104）Axis overlap, the arching trajectory hole
（101a）Lower end position be equipped with and be used to support drive shaft（106）, the supporting arc plate of arcuate structure（120）, the arc
Track hole（101a）Upper end position be equipped with upper discharge position position-limit mechanism, the drive shaft（106）Curved track is in feeding
Mark hole（101a）Upper end position, the drive shaft（106）Arching trajectory hole is in blanking（101a）Lower end position and
With supporting arc plate（120）Mutually recline.
2. a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process according to claim 1, it is characterised in that：On
Discharge position position-limit mechanism is stated to include electric pushrod (116), push away closing piece（117）, cross rail（118）, V shaped slab（119）, cushion pad
Plate（121）, soft block（122）, pressure sensor（123）, the cross rail（118）Horizontal extension and it is fixed on main frame
（101）On, the electric pushrod (116) is mounted on main frame（101）Above and by controller（5）Control, it is described to push away closing piece（117）
It is slidably mounted in cross rail（118）On, it is described to push away closing piece（117）It is connected and upper with the telescopic rod of electric pushrod (116)
It is locked when material and supports drive shaft（106）, the cross rail（118）The inner circle side of face arching trajectory hole (101a), the V-arrangement
Plate（119）It is fixed on main frame（101）Upper and its inside groove face arching trajectory hole (101a) outer circle side, it is described to push away closing piece
（117）Face V shaped slab（119）Inside groove and needing lock drive shaft（106）V shaped slab is inserted into when position（119）Inside groove in,
The buffer plate（121）It is movably installed at main frame（101）Upper and and arching trajectory hole（101a）Upper end position phase
It is corresponding, and the buffer plate（121）In feeding just against drive shaft（106）, the pressure sensor（123）Installation
In main frame（101）Upper and and controller（5）It is connected, the buffer plate（121）Pass through soft block（122）With pressure sensor
（123）Induction end be connected.
3. a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process according to claim 1, it is characterised in that：On
It includes by controller to state hoisting mechanism（5）Control, be mounted on main frame（101）On promotion motor（112）, further include level
Extend, be pivotally mounted on main frame（101）On hoisting drum（113）, further include being wrapped in hoisting drum
（113）Traction rope on peripheral side（114）, the traction rope（114）One end is connected with carriage (103), the promotion motor
（112）Output main shaft and hoisting drum（113）Shaft end transmission cooperation.
4. a kind of guipure furnace apparatus for shaft-like workpiece heat treatment process according to claim 1, it is characterised in that：Institute
State main frame（101）It is equipped with for obstructing furnace body（3）Direction hot-fluid, the thermal insulation board made of heat-barrier material（115）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228485.8A CN108285968B (en) | 2018-03-20 | 2018-03-20 | Mesh belt furnace device for shaft workpiece heat treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228485.8A CN108285968B (en) | 2018-03-20 | 2018-03-20 | Mesh belt furnace device for shaft workpiece heat treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108285968A true CN108285968A (en) | 2018-07-17 |
| CN108285968B CN108285968B (en) | 2020-11-17 |
Family
ID=62833405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228485.8A Active CN108285968B (en) | 2018-03-20 | 2018-03-20 | Mesh belt furnace device for shaft workpiece heat treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108285968B (en) |
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| CN107419071A (en) * | 2017-09-21 | 2017-12-01 | 江苏恒力炉业有限公司 | A kind of push-down heat-treatment production line |
| CN107442726A (en) * | 2017-05-30 | 2017-12-08 | 徐皓 | A kind of full-automatic non-hardened and tempered steel forging production line |
| CN206736310U (en) * | 2017-04-26 | 2017-12-12 | 浙江尚鼎工业炉有限公司 | A kind of energy-efficient tempering furnace of roller shaft type |
| CN206798422U (en) * | 2017-05-23 | 2017-12-26 | 江苏仓环铜业股份有限公司 | Roller bed type conveying device for the processing of copper pipe online annealing |
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| CN102564120A (en) * | 2010-12-31 | 2012-07-11 | 苏州新凌电炉有限公司 | Material even distribution device for mesh belt furnace |
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| CN107010388A (en) * | 2017-06-01 | 2017-08-04 | 第拖拉机股份有限公司 | For three-stage conveying mechanism and operating method after multi items disk part by performing finish forge |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108285968B (en) | 2020-11-17 |
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Denomination of invention: A mesh belt furnace device for heat treatment of shaft workpieces Effective date of registration: 20221206 Granted publication date: 20201117 Pledgee: Bank of China Limited by Share Ltd. Gaoyou branch Pledgor: JIANGSU HONGDING AUTO PARTS Co.,Ltd. Registration number: Y2022320000763 |