Plastic Chair Mould for sale

■     Every year produce more than 400 sets chairs moulds.
■     Interchangeable insert block for different versions of chair (back­rest inserts can be easily replaced on the machine).
■     Cycle time 35 to 40 seconds for high speed running cycle.
■     Suitable mould structure ( arm sliders, ejector pins, air vent, etc.)


Commodity Plastic Chair Mould (for sale) mold design reference, the cavity and all the details of the cavity are ejected twice, and the cavities and the cavities have flower plates interchangeable. The flower plates have independent waterways. The armrests are equipped with inserts, which saves mold costs and is easy to process.


Plastic Chair Mold Design Analysis

It is mainly aimed at the mold design of the plastic stool. Through the process analysis and comparison of the plastic parts, an injection mold is finally designed. This subject starts from the process of product structure and specific mold structure, and has detailed design for the mold pouring system, mold forming part structure, ejection system, cooling system, injection molding machine selection and verification of related parameters, and at the same time And simply compiled the mold processing technology. The whole design process shows that the mold can achieve the processing technology required by the plastic part. The main task of this design is the design of the stool structure and the injection mold, that is, the design of an injection mold to produce plastic stool plastic products, in order to achieve automation and increase production. For the specific structure of the plastic basin, the mold is a single parting surface injection mold with a straight gate. According to the mold structure, straight guide pillars are used, a larger demolding angle is set to facilitate demolding, and the design of side core pulling is omitted. Its advantage is to simplify the mechanism, reduce the use space of the mold, and greatly reduce the manufacturing cost of the mold. . The mold design shows that the mold can meet the quality and processing requirements of the plastic stool.


Plastic Chair Product material analysis

Polypropylene is a non-toxic, odorless, and tasteless milky white highly crystalline polymer with a density of only 0.90--"0.91g/cm3. It is one of the lightest varieties of all plastics. It is particularly stable to water. The water absorption rate in water is only 0.01%, and the molecular weight is about 80,000 to 150,000. The formability is good, but due to the large shrinkage rate (1%~2.5%). Thick-walled products are easy to dent, and for some parts with high dimensional accuracy , It is difficult to meet the requirements, the surface of the product has good gloss and is easy to color.


Polypropylene is a thermoplastic resin made by the polymerization of propylene. It is relatively heat-resistant and corrosion-resistant. Its low density makes it the lightest general-purpose plastic. But it is easy to age. Its melt mass flow rate (MFR) is usually 1-100. PP materials with low MFR have better impact resistance, but lower elongation strength. For the same MFR material, the impact strength of the copolymer type is higher than that of the homopolymer type. Due to crystallization, the shrinkage rate of PP is quite high, generally 1.6~2.0%.