PP Construction Board Machine Line

PP hollow building formwork is a new environmentally friendly building material used to replace traditional wooden formwork, bamboo plywood, and steel formwork. Its equipment is specifically designed for producing PP hollow boards with special structures (usually multi ribbed reinforcement, dense holes).

 

Final product

 

pP hollow construction board

pP hollow construction board

pP hollow construction board

Product Features:

·Lightweight and high-strength: The hollow structure greatly reduces weight while ensuring strength, making it easy to construct.

·Waterproof and moisture-proof: completely solve the problem of deformation and cracking of wooden formwork when exposed to water.

·Corrosion resistance and easy demolding: The concrete does not adhere, the surface is smooth, and the pouring surface has high quality.

·Reusable: The frequency is much higher than that of wooden templates, theoretically up to 50-100 times, with low overall cost.

·Environmentally friendly and recyclable: After being scrapped, it can be fully recycled and reused, meeting the requirements of green construction.

Special requirements for production equipment:

1. High strength requirement: The formwork needs to withstand the enormous lateral pressure of concrete, so the mechanical properties of the board (bending resistance, impact resistance) are the core indicators. The equipment must be able to produce high-strength boards with dense structure and full reinforcement positions.

2. Complex molds: The cross-sectional structure of building templates is much more complex than that of ordinary grid panels, usually with main and auxiliary reinforcement, strengthening ribs, and other designs. Therefore, the design and manufacturing of molds are the technical core, directly determining the success or failure of the product.

3. Stability and accuracy: The equipment must operate continuously and stably to ensure consistency in the thickness, width, and density of the board. Any fluctuations will affect the quality and repeated use of the template.

4. Raw material treatment: In order to improve the strength, weather resistance and aging resistance of the template, a large number of fillers (such as calcium carbonate, talcum powder) and modifiers are usually added to the PP raw material. This places higher demands on the mixing ability and wear resistance of the extruder.

A professional PP hollow building formwork production line mainly includes the following parts:

1. High speed and efficient mixing type parallel twin-screw extruder

·This is the core power source of the production line. It is necessary to use a co rotating twin-screw extruder, as it has excellent mixing, shearing, exhaust, and self-cleaning functions, and can fully homogenize the mixture of PP and a large amount of filler.

·The screw and barrel need to be made of high-strength, wear-resistant alloy steel (such as 38CrMoAlA nitrided) to cope with the wear of the packing.

·Equipped with a precise temperature control system (usually water-cooled+air-cooled) to ensure stable plasticization process.

2. Specialized composite molds

·This is the technical core of the production line, with the highest value. The mold structure is extremely complex and adopts a multi-stage diversion design to ensure that the molten material flow can evenly fill each reinforcing rib and rib position, avoiding defects such as material shortage and uneven welding lines.

·The mold lip is usually designed as adjustable to fine tune the thickness of the sheet metal.

3. High precision vacuum shaping table and cooling system

·This is the key to forming a template structure. The high-temperature softened slab coming out of the mold immediately enters the shaping table.

·Vacuum system: Through strong vacuum adsorption force, the molten billet is tightly adsorbed onto the cooling surface of the shaping mold, accurately replicating the complex structure of the mold design.

·Cooling system: The shaping table consists of multiple sections with dense cooling water channels built in, which must efficiently and uniformly cool and solidify the board to maintain its shape and prevent deformation. The cooling effect directly affects production speed and quality.

4. Multi track tractor

·Provide strong, smooth, and even traction. Due to the high frictional resistance of building templates, multiple tracks (usually at least two or more pairs) are required to jointly pull them to ensure that they do not slip or deform.

·The traction speed must be seamlessly synchronized with the extrusion speed, with extremely high precision requirements.

5. Automatic cutting and stacking device

·Tracking automatic cutting saw: During the cutting process, the speed of the saw carriage is synchronized with the speed of the sheet metal to ensure a smooth and burr free cut.

·Flip stacker crane: The cut templates are automatically stacked neatly. Due to the large size of building templates, flipping or gantry stacking is usually used to avoid bending of the boards due to their own weight.

6. Complete set of auxiliary systems

·Automatic feeding system: including raw material storage, metering, conveying (vacuum feeding machine), and raw material drying machine (although PP does not have strong water absorption, modified materials may need to be dried).

·Vacuum system: Provide stable and sufficient vacuum negative pressure for the shaping table.

·Water circulation system: including water tank, water pump, cooling tower, etc., providing cooling for extruder, mold and shaping table.

·Intelligent control system: using PLC or industrial computer centralized control, touch screen human-machine interface. Accurately controlling all parameters such as temperature, extrusion speed, traction speed, vacuum degree, cutting length, etc. in each section is the "brain" of the production line.

PP+filler+additive ->automatic metering feeding ->twin-screw extruder (melting, mixing, homogenization) ->dedicated mold (forming slab) ->vacuum shaping table (shaping, cooling) ->multi track tractor (traction) ->automatic cutting saw (fixed length cutting) ->flipping stacker crane (automatic feeding) ->finished product template

1. Mold technology is the core: it is necessary to examine the design ability and manufacturing process of the manufacturer's molds. Request to see the cross-sectional drawing of the mold and the actual production template sample, check whether the reinforcement position is full, whether the thickness is uniform, and whether the surface is flat.

2. Applicability of extruder: Confirm whether the extruder has been specially designed for high filling PP materials (such as screw configuration, wear-resistant treatment).

3. Stability and accuracy of the entire line: Inquire about the brand of key components (such as PLC, frequency converter, vacuum pump, water pump) to ensure the long-term reliability of equipment operation.

4. Case and reputation: Check whether the manufacturer's equipment has successful customer cases and conduct on-site inspections of the production line that is currently in operation as much as possible.

5. Comprehensive service capability: including installation and debugging, operation training, process formula guidance, after-sales service response speed, and spare parts supply capability. The process debugging of producing building templates is crucial.

Summary: PP hollow building formwork equipment is a high-end professional production line that is technology intensive, based on high-strength and high filling PP modified materials, and focuses on producing complex structural hollow boards. The technical difficulty and core value lie in the mixing extruder and specialized composite molds. Before investing, it is necessary to conduct sufficient technical research and manufacturer inspections.

Hot Tags: pp construction board machine line, China pp construction board machine line manufacturers, suppliers, factory, PC PMMA Solid Sheet Extrusion Machine Line, plastic sheet and board machine line, PP Construction Board Machine Line, PP Honeycomb Board Production Line, PP PE PC Hollow Sheet Extrusion Machine Line, TPE Car Sheet Extrusion and Vacuum Forming Machine