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Full-Automatic Servo Knife Folding Production Line（Pre-Slitting Pre-Creasing & Pleating）

Full-Automatic Servo Knife Folding Production Line（Pre-Slitting Pre-Creasing & Pleating）

Built on advanced servo control technology and digital real-time monitoring systems, the line minimizes manual intervention, reduces material waste and adapts seamlessly to varying paper specifications and batch volumes. It performs exceptionally well with stiff filter paper grades, thanks to the in-line pre-creasing unit that pre-forms uniform fold lines prior to the forming station, eliminating spring-back deformation and ensuring sharp, dimensionally accurate final products. Its flexible configuration makes it suitable for both small-batch customization and large-scale continuous production.

Order(MOQ) :
1 Set
Payment :
T/T
Product Origin :
Bengbu, Anhui, China
Shipping Port :
Shanghai Port, China
Lead Time :
30 working days
Weight :
1400 kg

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Core Advantages

High-Precision Servo Folding – As the core process of the line, the dual upper + dual lower servo-controlled knife system delivers clean, uniform folds at speeds up to 280 folds per minute with fully stepless height adjustment, setting the benchmark for forming accuracy and production efficiency.

Dedicated Pre-Creasing for Stiff Materials – In-line scoring unit creates consistent indentations on rigid filter paper, guaranteeing precise fold positioning even for heavy-duty filter media.

Intelligent Process Synchronization – Infrared speed tracking aligns paper feeding, slitting, pre-creasing and folding in real time, eliminating misalignment and ensuring uninterrupted production.

Auto-Adjustable Slitting – Upgraded pneumatic slitting unit with 7 blades and dual side trimmers provides stepless width adjustment via frequency converter, matching diverse filter dimensions with a smooth, burr-free cutting finish.

Stable Tension Control – Integrated magnetic powder brake, air expanding shaft and tension regulator maintain consistent paper tension throughout the process, preventing material deformation and wrinkling.

Digital Temperature Regulation – Upper and lower heating plates with 6 independent heating discs offer precise temperature control up to 260°C, ensuring optimal forming performance for different paper weights and materials.

Main Equipment Modules

1. Automatic Paper Unwinding & Pre-slitting Feeder

Key Features

Automatic raw paper loading system reduces labor intensity and improves material changeover efficiency
Magnetic powder brake, air expanding shaft and tension regulator enable flexible, precise tension tuning for various paper grades
Adjustable cylinders at both ends of feed rollers allow quick calibration and smooth, stable conveying
7 slitting blades paired with dual circular edge-trimming blades; slitting width automatically adjustable to suit different filter element sizes
Infrared speed tracking system perfectly synchronizes feeding speed with downstream units

2. Pre-Creasing Machine

It specially designed for stiff and thick filter paper materials. It creates precise, uniform crease lines on the paper web prior to the folding process, eliminating material spring-back, ensuring accurate fold positioning and consistent fold shape, and significantly improving the dimensional uniformity of finished filter elements.

Key Features

Fully automatic paper feeding perfectly synchronized with the main production line
Stepper motor-driven creasing roller ensures highly accurate crease pitch and repeatable positioning
PLC-controlled automatic height adjustment for quick changeovers between different paper thicknesses and stiffness grades
Frequency converter stepless speed regulation with infrared monitoring maintains consistent speed matching with the folding machine

3. Servo Knife Pleating Machine

As the core forming unit of the entire production line, this servo-driven folding machine determines the final forming accuracy, production speed and finished product quality. It adopts an advanced four-servo knife structure and constant temperature heating system to complete high-speed, high-precision filter paper forming, with integrated on-line counting to support closed-loop production management.

Technical Specifications

Parameter	Specification
Maximum processing material width	800/100/1300 mm
Adjustable folding height	5 – 70 mm (varies by raw material properties)
Folding speed	0 – 280 folds/min, stepless adjustable
Power supply	380V / 50Hz
Power breakdown	Main motor: 1.5 kW; Lifting motor: 0.4 kW; Swing knife servo motor: 0.75 kW
Preheating power	6 kW
Temperature control range	Ambient temperature – 260°C
Operating air pressure	0.6 MPa

Key Features

Paper feeding platform with side limit stoppers prevents material deviation and ensures stable, centered conveying
Integrated dotted counting system with fully editable parameters via touch screen, enabling accurate batch counting and real-time production tracking
2 upper + 2 lower servo-controlled folding blades deliver high-speed, high-efficiency forming with consistent, sharp fold shape and excellent dimensional repeatability
Upper and lower heating plates, each fitted with 3 independent heating discs; digital temperature control and display for accurate heat management across different paper materials
Rear output worktable made of hard chrome electroplated steel plate, with tempered glass safety guard for operator protection and convenient production inspection

Application Fields

This production line is widely applicable in the manufacturing of:

Automotive cabin air filters and engine intake air filters
Industrial oil filter paper and fuel filter elements
Dust removal filter cartridges and other industrial filtration products

Hot Tags :

Filter Paper Folding Machine

Servo Knife Folding Line

Pre-Creasing Machine

Automatic Slitting Feeder

Filter Media Production Line

Full-Automatic Filter Folder

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