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Tel: 86-18663717059
E-Mail: info@knoppoauto.com

WhatsApp: 86-18663717059

Add: 2-804, Fenghuang road, Jinan, Shandong, China

Sheet Metal Straightening Machine

Featuring by parallel multi-rollers, screw rod pressing, intensive support and other technologies, the Equipment may be employed to meet the leveling requirements of sheet materials and flat parts. The quadruple leveller structure is utilized.

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Sheet Metal Straightening Machine

I. Brief Introduction and Main Features of the Equipment:

1.Featuring by parallel multi-rollers, screw rod pressing, intensive support and other technologies, the Equipment may be employed to meet the leveling requirements of sheet materials and flat parts.

2. The quadruple leveller structure is utilized.

II.50-800-19 Hydraulic Precision Leveling Machine:

1. The main technical parameters are shown below:

Thickness of the levelable plate	0.8-20mm
Width of the levelable plate	≤1000mm (opening width of the Equipment: 1100mm)
Diameter/quantity of leveling rollers	Φ80 Upper 9+ lower 10=19rolls
Drive mode of the leveling roller	AC gear motor * 2 sets
Feed rate	0-10m/min, adjustable frequency conversion.
Speed adjustment	Frequency Converters * 2 sets Synchronization of upper and lower rollers for electronic speed regulation Automatic stop function against overload
Measurement and display of the roll gap	Displacement sensors * 4 sets Touch screen and PLC electric controller
Adjustment of the roll gap	Hydraulic Locking,Servo Limit and Numerical Control Adjustment
Main unit structure	Two beams and four columns Drive by the left side Cleaning and maintenance of the leveling roller by the right side
Leveling accuracy (flatness)	0.1mm /m2
Yield Strength	235Mpa

2. Working principle diagram of the leveller:

3. Power and environmental requirements of the leveller:

Item	Explanations	Remarks
Power voltage	Three-phase AC380V, ±10%
Power frequency	50Hz, ±1%
Total power consumption	Approximately 35KW
Control voltage	AC220/DC24
Ambient temperature	1~40℃
Altitude	below 1,000m
Relative humidity	20-80% (No condensation, no dew formation)
Protection level	IPX4

III. Detailed Description of Key Performance:

	1. The leveling roller is made of GCr15 bearing steel (see Figure 1). After heat treatment, the surface hardness reaches HRC58-62, and then hard chromium plating and rust prevention treatment are carried out. There are totally 15 Φ125mm leveling rollers, with 7 ones in the upper row and 8 ones in the lower row.
	2. The upper and lower leveling roller groups are supported sequentially by specially designed support bearings for each leveling roller (see Fig. 2 and Fig. 3) Thereby preventing bending deformation of the leveling roller after being subjected to force, and the supporting rollers can be adjusted separately. This is commonly known as the roller system form of parallel rollers and quadruple levelers.
	3. By using the four hydraulic columns of the upper and lower beams (see Figure 4) The inlet and outlet roller gaps between the upper and lower leveling roller groups are locked, and the inlet and outlet roller gaps remain unchanged regardless of whether there are sheet metal parts passing through the machine. Traditional and old-fashioned ordinary leveling machines adjust the front and rear roller gaps using use screws without pre-tensioning devices. Therefore, the frame body and the front and rear roller gaps are constantly changing during the leveling process of sheet metal parts, resulting in unsatisfactory leveling effects.
	4. The power section adopts two 30kW reducer motors (see Figure 5) with a designed maximum leveling speed of 10m per minute.
	5. The multi-axis gearboxes are designed and manufactured in-house, employing a gear transmission design scheme (see Figure 4), with each set of upper and lower leveling rollers corresponding to an upper and lower multi-axis gearbox.
	6. The clearance between the front and rear upper and lower rollers is adjusted by four servo motors on the four pillars, which are the limiting devices of the mechanical structure. The hydraulic locking device adopts four hollow oil cylinders fixed on the column (see Figure 7), and the supporting system adopts a hydraulic servo pump station.
	7. For the safety protection of the Equipment itself, the frequency converter is used to detect the current, and when the overloaded sheet parts are leveled, the Equipment will automatically stop for protection.
	8. The touch screen on the electrical cabinet allows for the configuration of working parameters for the leveller (see the Figure below).

9. The maintenance window on the right side of the Machine can be opened to extract the leveling roller and supporting bearing assembly (upper and lower roller set), making maintenance and servicing more convenient without the need to dismantle the girder. The working rollers can be easily removed for cleaning by disassembling the right-side support wallboard of the upper and lower roller sets (for routine small-scale cleaning, a cloth soaked in alcohol is sufficient for wiping).

10. The overall design is compact with a small area, and generally does not require excavation of foundation pits. Especially the transmission part is simple and reliable (patent protection has been applied for), with high processing accuracy. The machine operates relatively quietly without significant noise with a wide leveling range. The leveling accuracy also far exceeds the mechanical industry standards, equivalent to imported leveling equipment. It also has the advantage of local after-sales service, low cost and fast response.

IV. Electric control and other auxiliary devices of the leveling machine

The electrical control part mainly includes an electrical cabinet, and the controller includes electrical components such as Delta brand frequency converters, PLCs, and touch screens, etc.

V. Configuration List of the Equipment:

Component Name	Part Name	Brand
Mechanical portion	Leveling roller	KNOPPO
	Axial bearing	KNOPPO
	Wallboard	KNOPPO
	Bottom plate	KNOPPO
	Self-lubricating bearing	KNOPPO
	Upright	KNOPPO
	Upright mechanism	KNOPPO
	Gearbox	KNOPPO
	Axle Sleeve	KNOPPO
	Hydraulic servo pump station	KNOPPO
	Hydraulic cylinder	KNOPPO
	Base	KNOPPO
	Lubrication pump	KNOPPO
	Main unit girder	KNOPPO
	Shell platform	KNOPPO
Electrical section	Main reducer motor	Jiangsu GuoMao
	Adjustment servo motor	Delta (standard configuration)
	Frequency converter	Delta (standard configuration)
	PLC	Delta (standard configuration)
	Touch screen	Delta (standard configuration)
	Magnetostrictive displacement sensor	JingYi
	Primary intermediate relay	Omron
	LV apparatus	Schneider
	Electric cabinet	KNOPPO

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