Plastic office chair mould include many parts mould, such as 5 star office chair leg mould, office chair set mould, office chair armrest mould, office chair back part mould, office chair head part mould, etc.
- Plastic office chair leg mould.
Plastic office chair leg is one big and main part of the plastic office chair. So its mould is quite important for the office chair.
— Plastic office chair leg design.
XS Plastic Mould Co., Ltd design office chair leg according customer’s sample, 2D drawing, or client owned 3D drawing. We also can make the office chair leg 3D design according sample pictures. But there is a disadvantage that making part 3D design according sample picture only there will be some difference on the design and real sample. We suggest to make 3D design according sample or change from existing 3D design.
3D design is the first stage for the plastic office chair leg mould manufacturing. After client confirmed the office chair leg part 3D design, we can go on the 3D mould design. Before 3D mould design, we should make sure the plastic raw material shrinkage rate. That means client have to tell us which detail plastic material he want to use it to produce the office chair leg. Office chair legs often made by PP+GF, PP+Nylon, etc.
— Plastic office chair leg mould design.
— After mould 3D design ready, we can go on to order mould steel according the mould design steel plate sizes.
— The tooling process for the office chair 5 star leg mould: rough tooling (include steel grinding, CNC milling tooling, holes drilling, EDW, etc.) —> core and cavity details tooling (include CNC ingraving tooling, EDM tooling, etc.) —> Polish and texture —> Mould assembling and parting mathching —> Mould test —> Handle mould test sample to client to inspect the quality —> Mould delivery after quality confirmed.
- Office chair armrest mould
Office chair armrest have left and right version design. But above design, right side and left side is same. Part 3D design made according client’s sample.
— Office chair armrest plastic material.
Due to armrest wall thickness is very thick, so its material need to be with additive agent, like glassfiber, calcium carbonate, etc. The case on this page, the armrest plastic material is PP+calcium carbonate. And armrest cover plastic material is pure PP.
— Office chair armrest mould design and office chair armrest cover mould design
–After office chair armrest mould and office chair armrest cover mould design ready, we will go on the mould steel purchasing.
–The mould tooling process is similar with the office chair 5 star leg mould: rough tooling (include steel grinding, CNC milling tooling, holes drilling, EDW, etc.) —> core and cavity details tooling (include CNC ingraving tooling, EDM tooling, etc.) —> Polish and texture —> Mould assembling and parting mathching —> Mould test —> Handle mould test sample to client to inspect the quality —> Mould delivery after quality confirmed.
- Office chair headrest mould
Office chair headrest include two parts. One part frame and we can call it main part. Second part is fixing part. Headrest need to be filled with sofa. The headrest main part have groove and space to hold the sofa. And outside covered with leather. So the second part was used to fix the sofa and leather firmly on the headrest plastic plate.
— Office chair headrest 3D design.
We make the office chair headrest 3D design accordingly customer’s sample. First, scan the part design, and then make the part 3D part design. There is one thing very important that we have to judge the part shrink mark and warping of the samples during making 3D design, as we have to remove them, then we can get the correct part design.
Above pictures samples are original samples from customer.
Above pictures are the part 3D design made according original samples.Next process is mould design.
— Next process is the 3D mould design.
In this stage, we need customer provide as detail as possible requirement on the mould design. And also provide the detail specification of the injection machine. Then client can directly use the moulds when receive the moulds.
— Mould tooling process.
We can see the detail plastic office chair headrest mould manufacturing process from above table. Acutally almost all the moulds process are same like this.
— Office chair headrest mould test.
- Office chair back mould
This office chair back include two parts. This kind of design easily to clip the soft material and fabric firmly on the office chair.
— Office chair back mould part design.
XS Plastic Mould Co., Ltd use CMM to scan original samples and get the points data. The cad data from CMM is used for making new part design to ensure the new part design same as the original samples. But most of the plastic parts have shrink, so the part designer need experience to judge the part shrink area to make the new 3D design correctly.
— Office chair back part mould design.
Mould include core, cavity and mould base. Mould base have standardization. There are 36 types different structure mould base. Choose a suitable mould base is most important job for the mould design. During the mould quotation stage, it is better to send the existing mould picture or mould design made before to us to understand the mould requirement, then we can quote the mould price accordingly.
XS Plastic Mould Co., Ltd think mould design is most important on the mould production. As if problem on the mould design, no matter how good the steel used to make the moulds, the moulds quality is low, even that kind of mould can not be used to run on the injection machine. So mould design is most important.
