What is electrical distribution box production line

Electrical distribution box production line for making electric enclosure box which can be using in outdoor indoor power distribution board. 

Distribution box enclosure photo

This steel box production line is equipment for production of distribution boxes. The strip coil to be processed is manually placed on the uncoiler. Due to strip coil material not flat, so, need a leveling process, we call it straightener. And then guide into hydraulic pre-punching and punching notch, and is sent to the forming machine by the guide device to form. Under the frictional damping action of the forming roller and pressure roller, after entering the bending part at a linear speed of 0-13m, the box is cut and bent as required, and then manually packed away. This production line produces 2-3 enclosures per minute. the production box quantity speed according to different product specifications.

Distribution enclosure production line incuding devices

No.	Machine name	QTY	REMARK
1	Uncoiler	1
2	Straightener	1
3	Servo Feeder	1	2kw Mitsubishi motor
4	Servo Hydraulic machine		With mould
5	Guide device	1
6	Forming machine	1
7	Hydraulic bending cutting	1	With mould
8	Control system	2

Uncoiler, Straightener

Electric box production line main technical parameters

1.Details of accessory brand

No.	Name	manufacturer
1	Encoder	Omron
2	Touch Screen	Mitsubishi
3	Programmable controller (PLC)	Mitsubishi
4	Low-voltage circuit breaker	Chint
5	AC contactor	Chint
6	Inverter	Mitsubishi
7	Hydraulic Solenoid Valve	Shun Xin, Taiwan
8	Guide rail	Hiwin Taiwan
9	Server System	Mitsubishi

Automatic electric box production line

2.Feeding specifications

a. Applicable materials: cold rolled coil, galvanized coil

b. Material quality: Domestic GB standard

c. Tensile strength: δb≤780Mpa (Max.)

d. Yield strength: δs≤510Mpa (Max.)

e. Material thickness: 1.0-1.5mm

f. Material width: 200-450mm (Max.)

g. Inner diameter of steel coil: Φ360mm-Φ510mm

h. Outside diameter of steel coil: Φ1250 （Max.）

i. Steel coil weight: 3 t (Max.)

3.Forming parameters

a. Number of forming staion: 16 sets of roller

b. Spindle specification: Ø48mm 40Gr quenching and tempering

c. Roller material: Gr12 mold steel heat treatment

d. Integral archway: precision machined from 25mm steel plate, the hole distance error is less than 0.1mm

e. Base plate thickness: 20mm

4, forming ability

a. Outside diameter of coil: Φ1250mm (Max.)

b. Material forming thickness: 1.0-1.5mm

c. Product width 160mm-400mm adjustable

5.Speed ​​parameters of forming unit

a. Linear speed 0-13m / min

b. Acceleration time ＜ 30 seconds

6, Forming accuracy

a. Shear length tolerance: ≤ ± 0.5mm / m

b. Width tolerance: ≤ ± 0.5mm

c. Sickle curve: ≤2mm / m

d. Burr: ≤0.1mm (new blade cutting ordinary carbon steel plate with reasonable clearance)

e. Height tolerance: ≤ ± 0.5mm

The above tolerances are based on the first-grade steel coils with flat and edgeless waves.

7.Other equipment parameters

a. Power supply: 380V / 50HZ / 3PH (Or Custmized)

b. Installed capacity: about 32Kw

c. Forming speed: 0-13m / min

d. Cutting method: forming then cutting

e. Driving motor:

Straightener machine motor 2.2KW

Hydraulic punching 15kw,bending and cutting 5.5KW

Forming host motor 7.5KW

Servo motor 2KW

f. Floor area (approximately): length 30m × width 3m

(Roll Forming 7mX1.5m)

g. Production line direction: from left to right

(facing the unit from the operation table).

h. Equipment color: (Customer choice)

i. Unit equipment design can meet 12 hours of continuous production

j. Operating environment:

1: power supply voltage: 380V ± 10% / three-phase four-wire, frequency: 50HZ total power: about 32KW

2: Ambient temperature: 0-40 ° C, relative humidity: 60-95% RH.

Hydraulic punching hole and gap of distribution box

 Metal box equipment structure and system configuration:

Overview: The production line is mainly composed of Uncoiler, Straightener, Hydraulic punching machine, forming machine, hydraulic cutting and bending machine, hydraulic system, electrical control part and safety protection part.

1. Unloading (uncoiler): used for unwinding material and providing sheet material to the forming part, 3 tons of electric unwinding.

2. Leveling (straightener): 9-roller precision leveling (up 4 down 5), 2.2KW electric feeding, used to straighten the coil and eliminate material stress.

3.Servo feeder, Hydraulic Hole Punch: 2KW servo system, precision feeder. Hydraulic punching device (die) and cutting device.

2. Forming mainframe: The mainframe base of this production line is welded with 100 * 100 * 3MM square tubes, the frame is integrated with a fixed archway, the side plates are made of 25mm steel plates, and the supporting parts are made of high-quality Taiwan bearings. Twisting up and down adjustment, the host has good rigidity and stable structure.

B: Roller (roller staiton): 16 sets of roller forming, high-quality Gr12 mold steel, HRC up to 58 ~ 60º are processed by precision CNC machine tools, precision is 6 ~ 7, surface roughness is above 0.8, no scratches on the surface.

Outdoor distribution box making

4. Electrical enclosure production line electric control system: The entire production line adopts centralized control, the components are imported and domestic high-quality products, or specified by customers, and the standard components are Taiwan brand. The installation of the equipment's electronic control components complies with national regulations, with clear line numbers, reasonable bureaus, clean control panels, and clear labels.

5. Security protection: The host is equipped with a protective net, and warning signs are set on the parts involving personal safety. The electrical appliance has reliable safety grounding, and the emergency stop button is also provided on the die end to protect personal safety to the greatest extent.