injection unit

The Twinshot patented co-injection technology is a cost-effective process that can give you a distinct competitive advantage within your marketplace by significantly reducing part cost while improving product quality. It’s a single injection unit , co-injection molding system that can be easily retrofit to your current screw/barrel injection molding machine.

Available only from Spirex, Twinshot enables a conventional machine with a single barrel and screw to inject two materials in one operation, with one material totally enclosing the other. This new co-injection molding technique removes the obstacles to widespread co-injection utilization while preserving all of the traditional benefits. Simplicity and low cost differentiate this innovative technology from other co-injection processes. With this new system, virtually any custom or proprietary molder can afford co-injection equipment.

  • Single screw, single barrel, single recovery, single shot, single cycle… two materials.
  • Two independent melting sections (one for the skin material and the other for the core material) with multi-zone temperature control.
  • Single shot mold fill. The first part of the shot is skin; the second part is core.
  • Mold fill follows fountain flow principles causing skin material to fill the outer geometry of the part and cool as the inner material flows through the molten core.
  • Volume is controlled by varying primary or auger feeder screw speeds.
  • Result is a three-layer or “sandwich” construction A-B-A.

How to become a successful plastic mold designer engineer

How to become a successful plastic mold designer engineer

This is an expertise profession that describes the tooling required and applied to produce plastic parts. Though plastic mold designer is thought to be one of the easier programs  in designing field, it has quite a number of challenges. For people who wish to be plastic mold designers, creativity is one of the core requirement. Some may feel its a walk over due to the use of computer aided design programs forgetting that that is only a tool like in any other that assist the designer in learning about the jobs and program. Untill one has designed a project in a computer aided program software then he/she is not celebrated for pundit.     Despite the fact that its an office based field, visiting the laboratory and manufacturing sites is as well effective and the most important part of the whole study period. In order to become a successful plastic mold design engineer one has to follow the following four steps with none being an exemption.

Step 1

After successful high school completion, one must join an institution to complete an associates  degree program. this means that one has to go to a higher learning institution. Most local colleges and technical schools offer associates degree program.to acquire an under graduate academic degree upon completion of a course. of study However, different institutions may offer different courses in different aspects of plastic molding technology, Any of the offered programs nevertheless offers computer aided design programs that trains students to design through programs like autoCAD

Step 2

Find an apprenticeship this is a system of training a new generation of practitioners of a profession with on the job training and often some accompanying study.  Employers have embrassed offering of variety apprenticeships as the saying goes, the key to success is applying learnt process and acquired strategies. Designing plastic parts is a complex task involving many factors that address how a part is to b used and how its supposed to fit in the assembly. Therefore learning with actions can be the best teaching method.     This field is among those that require more hours at the field gaining work experience compared to class hours doing theory. Bearing in mind that this is not a competitive field, finding an apprenticeship is not that complicated for students. Institutions have leads and connections to training companies.

Step 3

Enter the work force. After completion of training, a plastic mold designer should join any plastic mould manufacturers so that they can take their carrier to greater heights. Working with customers closely and being able to work with computer aided design programs and other software associate programs improves learners potential. A learner receives further training about the job and applies acquired skills and knowledge

Step 4

Advance your career: this the last stage of becoming a successful plastic mold engineer. Its simply gaining solid experience and possessing quality skills. Though no licences are required in this field, taking certifications and licences to upgrade to advance companies can do no harm. Though plastic mold designers train for two years in colleges and technical institutions, it can take more years for one to be qualified and learning becomes a continuous process with new upcoming designs every other day.