 |
loading
| Availability: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Quantity: | |||||||||
| The liquid filter bag welding machine (bag head) is a key equipment specifically designed for the precise welding of the opening and ring of filter bags (such as PP plastic rings, stainless steel rings). | |||||||||
Product Name
Liquid filter bag welding machine (bag head)
Filter bag opening welding machine
Product Introduction
The liquid filter bag welding machine (bag head) is a key equipment specifically designed for the precise welding of the opening and ring of filter bags (such as PP plastic rings, stainless steel rings). It adopts ultrasonic or hot air welding technology to replace the traditional sewing process, solving the leakage and contamination problems in the filtration industry.
Product Features
Ultrasonic welding: Through high-frequency vibration, the interface between the filter cloth and the plastic ring mouth is instantly melted and fused, forming a seamless seal with a strength close to that of the material itself.
Hot air welding: Suitable for continuous welding of the middle seam of the bag body. Through hot air heating and pressure wheel forming, an infinitely long weld seam can be achieved.
Automation and Intelligence
PLC control + touch screen operation, supporting digital setting of parameters (pressure, temperature, time), with a low failure rate.
Automatic fixed-length cutting, stepless speed regulation (0-7m/min), with a production capacity of 1500-3000 pieces per 8 hours.
Structural design
Integral aluminum profile frame, high rigidity and precision; The penetrating roller structure prevents adhesion, and the temperature control accuracy is ±2℃.
Multi-welding head coordination (such as dual-head parallel models) can meet the one-time forming requirements of large-sized filter bags
Application Scenarios
Pharmaceuticals and bioengineering: Filtration of pharmaceutical solutions, plasma, and CIP cleaning solutions, with zero leakage and no fiber shedding.
Chemical engineering and electroplating: Solid-liquid separation of strong acid and alkali solutions, coatings, and inks requires corrosion-resistant sealing
Water treatment: Pre-treatment for industrial wastewater and seawater desalination, suitable for polypropylene (PP) and polyester (PET) filter materials.
Typical welding object
Bag head type: Seamless welding of PP plastic ring, stainless steel ring and PE ring mouth.
Filter bag specifications: Diameter 90-245mm, length 230-820mm (such as standard bags 1# to 5#)
Product Advantages
Eliminate needle holes and suture gaps to prevent side leakage; The height of the welding protrusion at the bag opening is reduced to prevent leakage at the opening.
Risk of no pollution
No sewing thread or silicone oil lubricant is required, eliminating secondary chemical pollution and meeting the requirements of FDA and GMP certifications.
Strength and durability
Welding strength ≥ the material itself, with pressure resistance and chemical corrosion resistance. The service life of the filter bags is extended by more than 30%.
Efficiency and Economy
The automated welding speed reaches 7m/min, reducing the reliance on manual labor and lowering production costs by 20-40%
Product Customization Process
Demand confirmation
Filter bag parameters: Ring mouth material (PP/ stainless steel), diameter, length, filter material type (PP/PET needled felt).
Process selection: Full welding, ring seam welding + bag body sewing and other mixed processes 4.
Equipment adaptation and adjustment
Welding head replacement: Match multi-angle welding heads based on the arc of the ring mouth (for example, a 180° ring requires 6 separate welds).
Mold customization: Fabric forming molds are suitable for different bag diameters to ensure stable seam width.
Parameter debugging and sample testing
The temperature (up to 700℃), pressure and holding time have been optimized, and samples are provided to verify the sealing strength.
Training and Delivery
Operation training + equipment acceptance (such as no-load test, load welding test)
Product Quality Inspection Process
Quality inspection process
According to the Welding Quality Management System 510, it is controlled in three stages:
Pre-weld inspection
Raw materials: Filter bag weight, ring mouth size and material report.
Equipment calibration: Frequency verification of ultrasonic generator and accuracy verification of pressure gauge.
Process monitoring
Process parameters: Record in real time whether the temperature, pressure and welding time meet the standards.
Appearance spot check: Uniformity of solder joints, no charring or false soldering.
Post-weld testing
Sealing performance: Gas pressure test (0.3MPa) or kerosene penetration test.
Strength test: The peel strength of the ring opening is detected by a tensile testing machine (≥ the strength of the filter cloth body).
Cleanliness: Particle flushing test to confirm no fiber shedding
