1. Definition of U-shaped groove

U-shaped groove refers to a groove shaped structure in a mold, similar in shape to the letter "U", commonly used for the molding of plastic products in injection molding. The function of U-shaped grooves is to enable plastic materials to flow and fill more evenly during injection molding, thereby improving the quality and efficiency of injection molding.

2. Structure of U-shaped groove

U-shaped grooves are usually composed of two symmetrical grooves, with a shape similar to the letter "U", and there are also auxiliary structures on both sides of the groove, such as guide columns, guide sleeves, etc. The function of these auxiliary structures is to maintain the stability of the mold during the injection molding process, avoiding problems such as mold deformation or uneven flow of plastic materials.

3. Application of U-shaped groove

U-shaped grooves are usually used for the molding of plastic products in injection molding, such as plastic boxes, plastic barrels, plastic trays, etc. During the injection molding process, plastic materials will flow and fill through U-shaped grooves to form the desired product shape. At the same time, U-shaped grooves can also be adjusted according to specific product shapes to meet different injection molding needs.

4. Advantages and disadvantages of U-shaped grooves

(1) The advantage of U-shaped grooves is that they can make plastic materials flow and fill more evenly during injection molding, thereby improving the quality and efficiency of injection molding. Meanwhile, the U-shaped groove has a simple structure and is easy to manufacture and maintain.

(2) The disadvantage of U-shaped grooves is that during the injection molding process, plastic materials will generate a certain amount of friction in the U-shaped groove, resulting in energy loss and heat loss of the plastic material. In addition, the structure of the U-shaped groove also affects the opening and closing speed of the mold and the injection cycle, thereby affecting the efficiency of injection molding.