Semi-automatic Steel Drum Production Line
A. Front process
1.Drum body straightening & blanking, top and bottom lid straightening
| No |
Name |
Parameters |
| 1 |
Hydraulic upcoiler- decoiler machine |
Sheet thickness:0.8~1.2mm Sheet coil width:660~1250mm Max coil diameter:1650mm Coil weight≤10T
Coil ID:φ508/φ610 Decoiler speed: 5-50m/min |
| 2 |
11 roller double precision leveling machine |
Sheet thickness:0.8~1.2mm Straightening precision: ≤1.5mm/m2 Shearing precision: A. Length±0.5mm/2m
- Width±0.5mm/2m
- Diagonal≤1mm/2m, Shearing line speed: L=1800mm, ≤18pcs/min Blanking line speed: L=660mm, ≤14set/min
|
| 3 |
Shearing machine |
Shearing thickness≤3mm, Shearing width≤1500mm Cutting length range 500-3000mm |
| 4 |
Cover delivery device |
Speed: 10 pcs/min |
| 5 |
Scrap shearing machine |
Shearing thickness≤3mm, Shearing width≤1600mm |
| 6 |
Electric control system |
1. Mitsubishi PLC 2. Servo motor driving control |
| 7 |
Hydraulic oil station |
|
| 8 |
Hydraulic support |
|
Hydraulic decoiler
- Structure
This machine is a single-head cantilever hydraulic expansion and contraction decoiler, which is composed of a main shaft part and a transmission part.
- The main shaft part is the core part of the machine. Its four blocks are connected to the slidingsleeve through T-shaped inclined blocks and are simultaneously sleeved on the hollow main shaft. The core is connected to the sliding sleeve. The oil cylinder controls the movement of the mandrel to achieve four The fan block expands and contracts at the same time. When the fan block is contracted, it is beneficial to roll up, and when the fan block is opened, the steel coil is tightened to complete the unwinding.
- The pressure roller part is located behind the uncoiler. The pressure arm can drive the cantilever to press down and pick up under the control of the oil cylinder. When feeding, press down the cantilever pressure roller to press the steel coil, which can prevent loose coils and facilitatefeeding.
- The transmission part is located outside the frame, and the main shaft of the uncoiler is driven to rotate by the motor and the reducer through the gear, which can also realize the positive and negative uncoil and rewind.
Hydraulic Up-Coil cart
- Structure
It is mainly composed of a car disc, a cylinder seat, an oil cylinder and walking system. When working, put the steel plate on the top of the oil cylinder at the position of the trolley tray. The oil cylinder lifts the steel plate to the height of the decoiler. The motor started to move to the center of the decoiler. The decoiler tightens the steel coil and the loading car rolls along the track. Return to the feeding area.
- Technical Parameters
- Steel coil width: 500mm-1100mm
- Steel coil weight: 15T
- Oil cylinder stroke: 600mm
- Hydraulic motor walk
Eleven roller double precision leveling machine
The shaft width of the eleven-roller leveling machine is 1200mm (servo motor control system) Number of leveling rollers: 11
Diameter of leveling roller: 120mm Fixed-length roller diameter: 160mm Leveling roller material 40cr
Motor power: 11kw
Form: Double type. Pinch the upper roller to encapsulate.
Leveling roller: The material of the leveling roller is 40cr, after quenching and tempering, quenching and grinding, the surfac hardness reaches HRC58-62, and the surface finish is Ra1.6mm. The upper row of work rolls are vertically raised and lowere by motor drive.
The bearing of the work roll adopts rolling bearing, which has large bearing capacity and long service life.
The main force system: the motor is centrally driven, driven by the universal coupling of the reducer transmission box.
Hydraulic system
It consists of a hydraulic station, composed of solenoid valves and oil pump motors, which are used for each part of the oil cylinder to complete their respective actions.
Electronic control system:
This production line uses 380V, 50HZ power frequency power supply, and all equipment of the production line is controlled by the control cabinet.
- The main control system is composed of frequency converter, PLC and other components. After precise calculation by PLC, the frequency conversion motor completes the fixed length. The system has high speed and high precision.
- Main electrical components
- PLC: Mitsubishi
- Inverter: forward rotation
- Servo motor Yaskawa
- Servo special reducer Newstar
- 7-inch LCD touch screen Xinje
- Circuit breakers, contactors, buttons, Chint.
Decoiler Straightening
Drum body sheet shearing machine
Scrap shearing machine
2. 160T punching machine JH21-160
For top and bottom lid blanking, one machine capacity: 10sets/min (12pcs top lid/12pcs bottom lid)
3. JF21-80T punching machine
Capacity: 10 pcs/min. For drum-hole punching, circular locking.
4. Automatic pre-curling&gluing machine (with seal glue/gelatinize)
10pcs/min; 10g glue/min
5.Bent rail conveyor chain 6.Straight rail conveyor chain
B. Middle process
1. Automatic sheet rolling and longitudinal seam welding machine- with automatic sheet loading/unloading device
Working efficiency: 480-600pcs per hour
Diameter range: 560/571mm, customized accept
Length range: 900-1025mm
Material thickness range: 0.7-1.2mm
Digital panel control, easy for operation.
Automatic electrode adjustment
Automatically loading/unloading the workpiece, automatically rolling and seam welding.
3.Expanding machine
The drum will be loaded to the machine automatically through conveyor, the machine will automatically check the drum body and lift it to a suitable places, then the carriage plate will move forward,the drum body will be expanded, then automatically lift down, the carriage plate will automaticallymove back(whenthe carriage plate is back, the machine decompression will be loading state, which will save energy). The drum body will go down and be unloaded on the conveyor.
Drum material: SPCC steel plate
Drum thickness: 0.8-1.2mm
Drum diameter: 560, 565, 571.5mm
Drum height: 880-920mm
Machine size: 3800*710*1600mm
Machine weight: 5000kgs
Power: 18KWPower: 18KW
Capacity: 7-8pcs/min
4.Flanging machine
5.Horizontal leak checking machine
Capacity: 8pcs/min;Power: 0.1KW, Horizontal type
There a rotation device to make sure the welding line is upwards.
Pour soapy water on the weld and check the weld quality by observing whether it bubbles.
6.W beading machine
The conveyor will automatically load in the drum body, the machine will automatically check the drum body and lift it to a suitable places, then the carriage plate will move forward, the reinforced ring roller will lift up and press on the drum body, then automatically lift down, the carriage plate will automatically move back(when the carriage plate is back, the machine decompression will be loading state, which will save energy). The drum body will go down and be unloaded on the conveyor.
Drum thickness: 0.8-1.2mm
Drum diameter: 560, 565, 571.5mm
Drum height: 880-920mm
Machine size: 4100*710*1700mm
Machine weight: 6000kgs
Power: 15KW
Capacity: 7-8pcs/min
7.Automatic cover feeding machine
8.Seaming machine
Manually put the cap on the assembly machine, the conveyor will load on the cap and drum body into the machine and assembly together. The assembly machine adopts double motors, separate driving, double main spindles. The carriage plate adopts imported linear guided with high accuracy and small friction.
Drum thickness: 0.8-1.2mm
Drum diameter: 560, 565, 571.5mm
Drum height: 880-920mm
Machine size: 3800*900*1700mm Machine weight: 9000kgs
Power: 55KW Capacity: 7-8pcs/min
9.Drum rolling straight conveyors
C. Back process
1. Painting spray booth
There are total 13 sets spray guns, (bottom :4 sets spray guns,others are mist spray)
There are 2 stations:
First station : 2 spray guns in middle of drum body.
Second station: 2 sets spray guns at the top cover; 2 sets spray guns at the bottom;
top drum body: 3 sets; bottom drum body : 3sets.
There are 2 sets trimming guns.
2. Drying oven (Including air cooling device)
| Cooling room length |
6 meters |
| Cooling time |
2-3 mins |
| Drying Oven |
2 burners(one 450,000 Kcal, one 350,000 Kcal) |
| Oven length |
32 meters |
| Diameter range |
560-571mm |
| Length range |
900-1025mm |
| Material thickness range |
0.7-1.2mm |
| Natural gas consumption |
95 m³/h |
| LPG consumption |
80kg/h |
3. Silk printing machine
Speed: 6-7pcs/min
Automatically loading and unloading the drum. PLC controller, the electronics are from domestic famous brand The machine can print the up, middle and bottom of the drum at the same time.
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