The production process from hollow boards to turnover boxes mainly includes the following steps:

1、 Raw material preparation and sheet production

Raw material selection: Select high-quality polypropylene (PP) or other suitable plastic materials to ensure the basic performance of the board.

Plate extrusion: The raw materials are fed into an extruder, heated and melted, and then extruded through a mold to form hollow plates. During the extrusion process, it is necessary to precisely control parameters such as temperature, pressure, and speed to ensure the uniformity and stability of the sheet.

2、 Board cutting and processing

Precise cutting: Use a die-cutting machine or a desktop die-cutting machine to accurately cut hollow boards, obtaining boards that meet the size requirements of the turnover box. When cutting, it is necessary to maintain the flatness of the board to avoid burrs or tearing.

Edge tearing treatment: Tear off excess edges according to the indentation. When tearing, pay attention to the force and avoid excessive force that may cause burrs, tearing, and other phenomena.

3、 Assembly and stitching of turnover boxes

Install small accessories: Install small accessories such as digging handles (i.e. handles or buckles) and edge strips on the board. The excavator is made up of two pieces embedded inside and outside, and the edges are extruded with PP plastic particles for reinforcement and smooth and rounded edges.

Plate splicing: Two or more plates are spliced together using riveting, welding, or other stitching methods to form the overall structure of the turnover box. When splicing, it is necessary to ensure the fixation and aesthetics of the box corners and body.

Inner protection: To protect the objects inside the box, it is necessary to apply protective materials such as velvet cloth to areas with rivets or other sharp parts.

4、 Quality Inspection and Packaging

Quality inspection: Professional quality inspectors conduct quality inspections on turnover boxes, including checking the firmness of the boxes, whether there is dust, damage, debris, and other phenomena.

Packaging and storage: Fold and pack qualified turnover boxes, then store them in the warehouse and wait for sales or shipment.

5、 Customization and special treatment (optional)

According to customer needs, the production process of turnover boxes can also include steps such as customization and special handling. For example, customized production can be carried out based on the size and shape provided by the customer; You can also print trademarks, labels, barcodes, and other information on the turnover box; Special treatments such as anti-static, dustproof, and waterproof can also be applied to turnover boxes to meet the needs of specific industries.

In summary, the production process of hollow boards into turnover boxes includes multiple steps such as raw material preparation and board production, board cutting and processing, turnover box assembly and sewing, quality inspection and packaging, as well as customization and special treatment (optional). These steps together constitute the production process of the hollow board turnover box, ensuring the quality and performance of the product.