Our company participated in the Shanghai International Adsale Plastics Exhibition

Our company participated in the Shanghai International Adsale Plastics Exhibition, and Yuanxin Mould won unanimous praise from customers at home and abroad!

How to Design a Blister Mould

Blister molds are what we often see and use, but many people think that the design of blister molds is very simple, but do you really know how to design blister molds? Let's take a look at the issues that need to be paid attention to when designing. . 1. Mould opening direction and parting line At the beginning of the design of each blister product, the mold opening direction and parting line must be determined first to ensure that the core-pulling slider mechanism is minimized and the impact of the parting line on the appearance is eliminated. 2. Demoulding slope 1. Appropriate demoulding angle can avoid product fluffing (drawing). The demoulding slope of the smooth surface should be greater than or equal to 0.5 degrees, the fine skin (sand surface) surface should be greater than 1 degree, and the rough skin surface should be greater than 1.5 degrees. 2. Appropriate demoulding slope can avoid damage to the top of the product, such as top white, top deformation, and top fracture. 3. When designing deep cavity products, the slope of the outer surface should be larger than the slope of the inner surface as much as possible to ensure that the mold core does not deviate during blistering, obtain a uniform product wall thickness, and ensure the material strength of the product opening. 3. Product wall thickness 1. Various plastics have a certain range of wall thickness, generally 0.5 to 4 mm. When the wall thickness exceeds 4mm, it will cause problems such as long cooling time and shrinkage, and should consider changing the product structure. 2. Uneven wall thickness will cause surface shrinkage. 3. Uneven wall thickness will cause pores and weld marks. 4. Reinforcing ribs 1. The rational application of reinforcing ribs can increase the rigidity of the product and reduce the deformation. 2. The thickness of the reinforcing rib must be ≤(0.5～0.7)T product wall thickness, otherwise it will cause surface shrinkage. 3. The unilateral slope of the reinforcing rib should be greater than 1.5° to avoid damage to the top. Blister molds are what we often see and use, but many people think that the design of blister molds is very simple, but do you really know how to design blister molds? Let's take a look at the issues that need to be paid attention to when designing. . 1. Mould opening direction and parting line At the beginning of the design of each blister product, the mold opening direction and parting line must be determined first to ensure that the core-pulling slider mechanism is minimized and the impact of the parting line on the appearance is eliminated. 2. Demoulding slope 1. Appropriate demoulding angle can avoid product fluffing (drawing). The demoulding slope of the smooth surface should be greater than or equal to 0.5 degrees, the fine skin (sand surface) surface should be greater than 1 degree, and the rough skin surface should be greater than 1.5 degrees. 2. Appropriate demoulding slope can avoid damage to the top of the product, such as top white, top deformation, and top fracture. 3. When designing deep cavity products, the slope of the outer surface should be larger than the slope of the inner surface as much as possible to ensure that the mold core does not deviate during blistering, obtain a uniform product wall thickness, and ensure the material strength of the product opening. 3. Product wall thickness 1. Various plastics have a certain range of wall thickness, generally 0.5 to 4 mm. When the wall thickness exceeds 4mm, it will cause problems such as long cooling time and shrinkage, and should consider changing the product structure. 2. Uneven wall thickness will cause surface shrinkage. 3. Uneven wall thickness will cause pores and weld marks. 4. Reinforcing ribs 1. The rational application of reinforcing ribs can increase the rigidity of the product and reduce the deformation. 2. The thickness of the reinforcing rib must be ≤(0.5～0.7)T product wall thickness, otherwise it will cause surface shrinkage. 3. The unilateral slope of the reinforcing rib should be greater than 1.5° to avoid damage to the top.

How to properly maintain rubber molds

Everything has a certain lifespan. In order to prolong the service life, we must know the correct maintenance method. The following is the correct maintenance method for rubber molds. First, the mold wear curve of regular maintenance is present in each mold. Die maintenance is to achieve abnormal wear in the field, and the number of stamping processes during this time is easy to learn. When the processing quantity is satisfied, the mold maintenance is realized, and the maintenance plan is not only easy to learn the maintenance items, but also easy to control the maintenance time. Second, improved maintenance In order to prolong the life of the mold, stabilize the quality, and facilitate maintenance, some improved molds are specially maintained. Third, daily maintenance refers to normal rubber mold cleaning, inspection, and oil removal. This work is usually to confirm that the mold is in a normal state, and abnormalities can be detected early. Fourth, there will be some changes in the processing of rubber molds repaired in accident status, and the country cannot continue to use them. Such as burrs become larger, wrong size, such as scars, burning of mold parts. Because of similar abnormality, the content of mold repair and maintenance is called accident. This maintenance is usually used until the near limit, if the time of the rubber mold maintenance cost is more important, the life of the mold is short. Because this is a sudden maintenance, there must be a planned shutdown of equipment, and emergency repairs.