china straight bar manufacturer straightening lathe for metal bar
straighteningmachine
JY Series of straightening machine can realized precise straightening and polishing on the after peeling or grinding metal bar surface utilizing the special curves and angles between the top and bottom two rollers. It can be used in black bar material straightening as well.
There are 3 types of structure in straightening machine, two beam four column structure, prestressed structure and frame structure.The straightness can be up to 0.15——0.4mm/m , and the roughness Ra<1μm after straightening.
straightening roller:
For two-rolls straightening machine, the bending moment of raw material is realized by concave roll. Another advantage is that the angle between rolls angle and rod axis is small, whiche is 15°. So the screw pitch of envelop line is shorter, and its straightness accuracy is higher.
Application: It could be used for bright bar , and black bar with suitable bending and surface hardness .Its straightening speed is slower than multi-rolls straightener, but its straightness accuracy is higher ,and its cost is lower.
Straightening machine:
Series JY straightening machine is mainly used forprecision straightening for the metal bar after peelingor granding and pre-straightening for the metal bar.
The machine adopted special curve between upper concave and the lower convex two straightening rolls to realize calendering and straightening at the same time,which greatly improved the working efficiency. Series JY two-rolls Straightening Machine consists of two-beams and four-columns structure,prestressed structure and frame structure.
Characteristics
1,fast feeding and straightening speed,which can reach 10-30m/min.
2,with special carves ,it can straighten and calender materials at the same time.
3,highe precision.straighteness can be 0.15-0.4mm/m,surface roughness Ra≤0.8μm.
The most vital part of a straightener is the two
straightening rollers, which desigined by our qualified engineers.The up roller is concaveand the lower one is convex,which formed a special curve to press strongly onto thematerials to realize straightening,as well as straightening.
Main Machine
The upper and lower body respectively
install a straightening roller,the upper roller is concave ,the lower roller is convex.
According to the diameter and the material properties of the bar,respectively to adjust upper and lower straightening roller angle,electric lift part adjust the gap between the two straightening rolls,start the cooling lubrication system,driven by main motor,to complete calendering and straightening at the same time. Frequency conversion stepless speed,realtime display the gap between upper roll and lower roll.Guide sleeves are installed in the inlet and outlet.Its location can be adjusted,playing guide and support role.During processing,the bar can accurately enter and leace the straightening rolls.
CHARACTER:
♦ Optimum straightening effect, even with high strength materials
♦Straightener roll from alloyed and hardened chrome steel
♦ Two-roll principle with concave upper roller and convex bottom roller to ensure that the ends are straightened
♦Lateral guidance of the bar to be straightened between the straightener rolls by special guide ledges
♦Long striaghtening roller life due to coolant lubrication
Our machines has been used in the preparation procedure of the following mechanical equipments manufacturing,such as slender shaft, hydraulic pneumatic components, bearings, springs, auto parts, textile machinery, cold forging material processing, instrumentation, steel pipe, cutting tools, engineering machinery, sports equipment etc.. They can also be widely used in copper, titanium, aluminum, magnesium industry, petroleum, electric power, Bridges and other industries, for example, piston rod, optical axis, bolt, spring, gear rack, toothed bar, stainless steel bars, copper bars, titanium bars, aluminum bars, magnesium bars, bearing ring, tiebar roller pin, pin , light bars, screw, mandrel, petroleum- drill pipe, steel cable, pipe billet, etc.
From Wire to Bar
basic composition:
| Loader | 1set |
| Uncoiling machine | 1set |
| Pre-straightener | 1set |
| Peeling machine | 1set |
| polishing machine | 1set |
| coiling machine | 1set |
Process Description
Loader→Uncoil machine→Centerless lathe→Cutting machine→Charging basket
Main Technical Parameters
Specification | JY130A | |||
Raw
Material
| Diameter Range(mm) (excluding drawing material) | Tensile Strength σb≤450(M pa) | Φ35≤d≤Φ130(L ≥3000) | |
Tensile Strength σb≤1000(M pa) | Φ35≤d≤Φ120(L ≥3000) | |||
Surface Hardness | ≤HB380(≤HRC42) | |||
Straightness(mm/m) | Bright Steel≤3 | |||
Diameter Tolerance | Bright Steel≤IT10 | |||
Circular Degree | d≤50 | ≤50% of diameter tolerance | ||
50<d≤80 | ≤65% of diameter tolerance | |||
d>80 | ≤70% of diameter tolerance | |||
Surface Roughness(Ra) (excluding drawing material) | Bright Steel≤3.2mm~6.3mm | |||
Finished
Goods
| Straightness(mm/m) | Bright Steel≤0.40 | ||
Diameter Tolerance | Bright Steel≤IT8 | |||
Surface Roughness(Ra) | Bright Steel≤0.8μm | |||
Roller Quantity (Pcs) | 2 | |||
Roller Diameter (mm) | Φ460 | |||
Straightening Feeding Speed(m/min) | 2~10(infinitely adjustable-speed) | |||
Host Machine Motor Power (KW) | 90 X 2 | |||
Lifting Motor Power (KW) | 5.5 | |||
Host Machine Outline Dimensions (Length*Width*Height) | Host Machine 11m X 3.4m X 4.3m | |||
Weight | Host Machine 42T | |||
Total Capacity KW | 200 | |||
Compressed Air Source(user prepare by themselves) | 0.5~0.8MPa,1.8m3/min,two-stage oil-water separator | |||
Q:Who are you? Trade Company or manufacturer?
A: We are manufacturer and we have our own trade company.
Q: When the product can be delivered?
A: Commonly the lead time will be within 3~4 months after receiving 50% deposit or L/C.
Q:What about payment term?
A:We accept T/T,L/C.
Q: I don't know how to install your frame machine?
A:we will dispatch professional technicians to customer factory
for machine installation and training.
Our company has perfect after-sale service system can provide after-sale service and technical support all over the world to ensure the timely maintenance and support which makes customers be at ease.Creating value for customers is our unremitting pursuit.
If you have any questions, please feel free to contact us at the following: