PRODUCT CENTER

Variable Ratio Cold Stretch Hooding Machine

Equipment Layout: The equipment covers an area of approximately 3.7 meters in length, 3.7 meters in width, and 5.5 meters in height.

Key words:

Classification:

Variable Ratio Cold Stretch Hooding Machine

WhatsApp:

+86-13505310820

Email:

aigerui@jnaigerui.com

Product inquiry

Main Technical Data

Equipment Layout: The equipment covers an area of approximately 3.7 meters in length, 3.7 meters in width, and 5.5 meters in height.

Equipment Technical Parameters:

Pallet Size 1: 1200 x 1100 x 1500 (mm)

Film Roll Specifications: Diameter 1000mm, Core Diameter 76mm; Material: PE/Polyethylene/Polypropylene Film.

Film Frame Quantity: 1 set for standard film roll wrapping.

Film Release Position: Bottom of the pallet.

Maximum Load Capacity: 2500 KG.

Wrapping Speed: ≥ 60 pallets/hour.

Power Supply: 380V, 50Hz, 24V DC. Voltage Fluctuation: ±5%; Frequency Fluctuation: ±1%. Protection Class: IP54.

Installed Power: ~25KW.

Power Consumption per Pallet: 0.2 KWH.

Air Consumption per Pallet: 40 L/H.

Compressed Air: Minimum 6 Bar; Consumption: 20 m³/h; External Air Pipe: φ12mm.

Equipment Dimensions (L x W x H): 3.7 x 4 x 5.5 m.

Equipment List: (1) Dimensional Inspection Station: 1 unit; (2) Film Wrapping Station: 1 unit.

Conveyor Speed: 15 m/min.

Conveyor Height: 700mm (±30mm) - To be confirmed.

Equipment Color: Main Color: RAL 7035; Warning Color: P7163 (Subject to customer requirements).

Structure: Load-bearing components are made of carbon steel.

Grounding: Electrical cabinet and equipment must be grounded separately. Shielding grounding must be requested in advance. Threaded holes must be equipped with screws; studs must be equipped with nuts.

Safety: Moving parts must be labeled with warning signs (e.g., arrow indicators for motor rotation direction).

Accessories: Consumables and spare parts must be provided (with a detailed spare parts list attached).

Design of the Film Wrapping System, Packaging Process, and Main Functions

Dimensional Inspection Station

Item No.

Equipment No.

Specifications

Quantity

Power

Remarks

1 unit

Equipment Description:

Height Detection System:

Before the stacked products enter the automatic cold stretch hood machine, they must pass through the product shape detection device. If the product height exceeds or falls below the system‑set height, the stack will not be hooded and will be directly output by the conveyor line. If the product height is within the system‑set range, the detection system will automatically transmit the detected data to the control center, and the corresponding length of cold stretch film will be cut for the stack;

Cold Stretch Hood Machine: Main Unit

Item No.

Equipment No.

Specifications

Quantity

Power

Remarks

1 unit

Equipment Description:

After stretching, the tubular film can be applied to various sizes of goods. The machine automatically draws film from a cold stretch film roll according to the height of the goods; then the top is heat‑sealed and cut on both sides to form a bag; the stretching arms start stretching simultaneously from four directions and lower the bag from top to bottom to cover the stack, forming a five‑sided waterproof, dust‑proof, and stable package. The machine can be integrated with upstream and downstream conveyor systems such as high‑level palletizers and robotic palletizers to form a complete packaging line. The automatic cold stretch hood machine is an independent unit capable of cold stretch hood packaging for goods. The hood machine uses tubular stretch film with lateral folded edges to wrap the goods. The goods to be packaged are conveyed to the hood machine by the upstream conveyor, and the center of the goods must be aligned with the center of the conveyor; when the goods reach the middle position of the conveyor directly below the hood machine, the conveyor stops, and the cold stretch hood machine performs the stretching and hooding process. After completion, the goods are conveyed to the next station.

Cold Stretch Hood Machine System Composition:

Cold Stretch Hood Machine Frame and Power Support Frame:

The frame and power support frame are used to fix the hood machine head, film pulling mechanism, film suction mechanism, heat sealing and film cutting mechanism, upper guardrail assembly, film feeding mechanism, and maintenance platform; it is made of carbon steel profiles with sandblasted and painted surface for corrosion protection;

Hood Machine Head: The head includes a tubular film traction rubber‑covered roller system, tubular film deviation adjustment device, tubular film top welding and sealing device, tubular film cutting device, and tubular film opening device. The film enters the opening station through the traction device. After the film is opened, the stretching arms lift, and the film winding fingers enter the tubular film to store the film. When the required size is reached, the welding fixture performs welding and sealing, and the cutter cuts the tubular film.

Cylinder drive system and guide wheel system;

Rubber‑covered roller film feeding system;

Film welding and cutting device;

Film suction cup opening device;

Stretching arm lifting device;

Control and safety circuit interlocks;

Chain drive wheels, tension wheels, etc.;

Stretching Arms: The stretching arms consist of a film stretching device, film feeding fingers, arm opening drive device, arm lifting roller system, and safety locking device. Driven by a reducer and sprocket through chains, the stretching arms move up and down synchronously within the effective working area of the hood machine, so that the film is套入 from the top of the stack to the bottom of the pallet, ensuring the cold stretch film is evenly wrapped around the stacked products;

Film roll storage system;

Film roll finger linear slider moving device;

Arm sprocket, chain, and motor drive system;

Control and safety circuit interlocks;

Film Roll Fingers: The film roll fingers are used for storing the tubular film. After stretching, in cooperation with the lifting arms, the film is released and wrapped around the top and four sides of the stacked products, forming a closed space with the pallet bottom film to prevent moist air from entering the products during storage and transportation. At the same time, the shrinkage of the cold stretch film keeps the products from tilting or toppling during transportation;

Rubber‑covered drive rollers and wear‑resistant belts;

Film take‑up and pay‑off wear‑resistant rollers;

Film pressing device;

Control and safety circuit interlocks;

Chain Traction Conveyor Line: The chain traction conveyor line is used to convey stacked products through chain traction. It is equipped with through‑type chain supports on the conveyor line to transport the stacked products to the position directly below the hood machine;

The chain traction system must ensure that the middle board under the wooden pallet has sufficient strength;

Chain drive wheels and tension wheels;

Pallet in‑place detection device;

Reducer with brake module;

Control and safety circuit interlocks;

Conveyor line length: 4000mm, height: 700mm; conveying speed: 15 m/min. (Subject to the layout drawing or technical drawing provided)

Models beyond the range can be customized!

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