Custom Horizontal Plastic Injection Molding Machine For Disposable Plastic Dessert Cup

Just as with overall product design, mold design is another opportunity to prevent defects during the injection molding process. We have previously written blogs on the Top 10 Injection Molding Defects and Avoiding Mistakes in Injection Molding, but here are some examples of how poor mold design can be a costly mistake:

Not designing the proper draft: This refers to the angle at which the finished product is ejected from the mold. An insufficient draft can lead to ejection problems, costing significant time and money.
Improperly placed or sized gates: Gates are the openings in a mold through which thermoset or thermoplastic material is injected. Each will leave a vestige (scar), which can create aesthetic or functional problems if not properly placed.
The number of parts (cycles) required, as well as the material they will be made of will help drive decision-making as to how and with what materials to create the mold.
When a product has been properly designed, approved, and die cast, it’s time to start the actual manufacturing! Here are the basics of the injection molding process…

Thermoset or thermoplastic material in granular form is fed through a hopper into a heating barrel. (Learn more about the differences between plastics in our PLASTICS course.) The plastic is heated to a predetermined temperature and driven by a large screw through the gate(s) and into the mold. Once the mold is filled, the screw will remain in place to apply appropriate pressure for the duration of a predetermined cooling time. Upon reaching this point, the screw is withdrawn, the mold opened, and the part ejected. Gates will either shear off automatically or be manually removed. This cycle will repeat over and over, and can be used to create hundreds of thousands of parts in a relatively short amount of time.

■ The Clamping Parts

The new generation mold locking device and computer emulation optimized parameter makes motions of the moving plate, fixed plate and high rigidity toggle structure, the characteristic of high strength and anti-fatigue is secured. As compared with similar machines, it owns bigger internal spur between tie bars, mold space and mold opening stroke and may process plastic products of bigger size.

■ The Injection Units

Short and forceful double-cylinder injection system is used to ensure the steady injection motion.The strain free fixed mold plate and screw assembly with optimized design help to reach better plasticing capacity and effect. PID temperature control regulate the speed and pressure of injection, pressure keeping, smelting, back pressure and other motions to ensure the quality of formed products and continuation of production.Auto material preparation, drooling proof,and anti cold start lapse functions ensure the high efficent,simple and safe operations.

■ The Hydraulic Units

High efficiency, Energy-saving and high precise proportional pressure and flow variable displacement pump system make the out of the hydraulic system matching the required power for entire machine operation without loss of high pressure throttle and overflow energy. As comparedwith constant displacement pump, t saves power by 30%~60%.A motor with same power may be fitted with an oil pump of bigger displacement and thus accelerates the speed of machine.Besides, the low oil temperature will prolong the service life of sealing elements.

Buffer device is used in every mold opening and clamping oil way to ensure steady mold opening and clamping operation without any impact.Besides, differential mold clamping operation is fitted to ensure high production efficiency.

NINGBO HAIJIANG MACHINERY MANUFACTURING CO.,LTD., situated in Ningbo Yinzhou Investment & Innovation Center, coversa land of more than 50,000M2.It was established in 1992 and now employs a staff of more than 500 people. with CE and ISO9001

Haijiang Company is a hihg-tech enterprise specialized in manufacturing injection molding machine that mainly covers dozens of speci?cations with injection shot of 45-2,0000g and mold clamping force of 400-15,000KN. Based on the marrow of the trade gained and through years' accumulation, the company has made constant innovation to ensure the machine quality.Parts built into the machines of defferent mold locking forces are all processed under specialized management. HJF series injection molding machines are developed by Haijiang Company on the basis of a collection of the advantages assimilated from all world famous brand machines with optimized design realized by CAD/CAM/CAPP where technical problems such as noise of the entire machine and low energy dissipation are removed and thus the design quality of products is secured. The company adopts advanced equipment and technology and applies scientific management. Besides, it has introduced high-precision full automatic CNC machines fitted with imported electric and hydraulic parts, which have tremendously improved the accuracy and steadiness of the whole machine. Its present products such as HJK and KJF series and widely applied in the electronic, automobile and civil industries.
In order to participate in competition in the world market,the company has clustered a group of high quality technical and managerial personnel with innovative spirit by means of optimized combination fo personnel. The company faces the society and users by acting on the principle of pursuit for ?rst class and sincere service. We will appreciate friends from all circles who have given their concern and support to Haijiang machines with first class products and first class after service.