Detailed introduction to tray vacuum molding processing

1、 Product parameters

Product: Plastic tray

Process: Vacuum molding processing

Size: Customizable

Product materials: ABS, PS, PVC, acrylic, etc

Service life: 3-5 years

Scope of application: 4S stores, automotive exhibitions, etc

2、 Material selection - ps plastic

PS plastic is a type of thermoplastic.

Discrimination: When not colored, it is transparent, and the vacuum molded product has a metal like crisp sound when it falls to the ground or is knocked. Its luster and transparency are similar to glass, and it is brittle and easy to break. You can scratch marks on the surface of the product with your fingernails. Modified polystyrene is opaque.

Common products: stationery, cups, food containers, home appliance casings, electrical accessories, etc.

For many years, when it comes to the selection of raw materials, whether it is ABS, PMMA, PC, PETG, APET sheets, etc., we have always used the most well-known domestic and foreign brand sheets or directly imported sheets from countries such as Japan, South Korea, and Germany. However, regardless of the type of board used, we must conduct strict quality inspections before entering the factory. All raw materials for the board must have a smooth surface, clean and flat surface, uniform thickness, and no deformation; Color consistency and no color difference; The incision is straight, without cracks or scars; No bumps or bubbles; Must comply with supplier drawing requirements and tolerance standards; Products that are non-toxic and meet national environmental standards.

3、 Process flow

The overall process flow chart is as follows:

Customer orders ->Mold manufacturing ->Vacuum forming ->Punch processing ->Packaging and transportation

4、 Our molds

The production scheduling will determine which mold to use based on production volume and the complexity of vacuum forming. The most common types of molds for mass production are divided into two: wooden molds and aluminum molds (copper molds and gypsum molds are not commonly used).

1. Wooden formwork:

Using wooden molds for production, the mold making process is similar to vacuum molding sampling. The advantage is that the production cycle is short, the cost is lowest, and it only takes one to two days to make a full plate (60X110cm) mold. The disadvantage is that the surface of the vacuum molded product is rough, the durability is poor, and it cannot form products with large depth, high complexity, and thick sheet material.

2. Aluminum mold:

The production of vacuum molded aluminum molds requires the use of computer design drawings before CNC milling machines. The advantages of this are a moderate production cycle, short mold processing time in the later stage (drilling air holes is completed during CNC machining), high dimensional accuracy of vacuum molded products, strong mold durability, and high cost.

For vacuum molded products, we usually use aluminum molds, which have high precision and small errors. Generally, the error can be controlled within 0.1mm; The surface is smooth, and the products produced by vacuum molding can be coated internally, making the coating of the produced products flat and smooth without any pitting; Durable and long-lasting, suitable for large-scale production; The advantages of uniform heating and clear edges enable our identification to be displayed more accurately.

3. Our vacuum molding equipment:

Using a CNC vacuum molding machine to ensure the accuracy of each product; The unique baking ability can regulate the local heat of the board according to the requirements of the product; Aluminum molds have unique controllability, which can heat, cool, and maintain a constant temperature, shorten the product shaping time, accelerate production capacity, and significantly improve work efficiency.

5、 Vacuum molding process

The vacuum forming process we often talk about usually refers to a complete set of processes including vacuum forming, vacuum cutting, and edge folding.

Vacuum forming: Our vacuum forming process uses a vacuum forming machine to adsorb thermally softened plastic hard sheets onto the surface of the mold, and after cooling, form a concave convex shaped plastic.

Blister cutting: Plastic products formed by vacuum packaging are divided into individual products using a punching machine to cut large sheets of material.

Folding: There is a type of blister packaging called plug-in packaging, which requires folding the three edges of the blister to the back using a folding machine, so that in the next packaging process, the paper card can be inserted into the folded edge to form a plug-in packaging.