Category: News
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What are ejector sleeves and how they work?
Ejector sleeves 1) The application of ejectors sleeves is required when a product features a hollow pillar structure and a great height. The matching relationship between pillars and sleeves is shown in the diagram below: When a product features a pillar that is equipped with shockproof rubber, the ø3/16” + ø1.7 sleeve should be selected.…
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What is the stop pin?
The function of the stop pin 1.Reduce the contact surface betwwen ejector plates and clamping plates,it is easy to control the flatness of ejector plates by adjusting the thickness of stop pins. 2.Buffer against ejector plates The material of stop pin S45C，hardness HRC40°~45° Position of stop pin 1.An STP must be installed under the RP to…
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Important Considerations for the Ejecting System(ejectors)
What should we pay attention to the ejecting system? 2.1 Keep at least a distance of 3/32” between ejector hole edge and other holes; 2.2 A clearance of 1/64’’ should be kept for ejector holes on the ejector plate; 2.3 A clearance of 1/32’’ should be kept for ejector holes on the plate of injection…
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Ejector pin
1)Ejector position:Ejected 10 – 15mm away from the edge of molding product (controlled by the retainer plate) 2)Ejection Types 1.Pin Ejector 2.Blade Ejector 3. Ejector Sleeve 4. Stripper Bar Ejector 5. Stripper Plate Ejector 6. Lifter 7. Air Ejector 3)Basic Ejection Requirements Product evenly ejected without ejection marks, unbroken and in shape; Main ejection parts:…
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Mold trial
Mold Trial Steps and Instructions Mold Trial Steps (1) Before mold trial, dry the raw materials first. All materials need to be dried except PE/PP. It is a standard practice to perform the trial with new materials. (2) Mount the mold onto the center hole and keep it aligned. It is enough to set the clamping…
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Different plastic molding process
With the rapid development of the plastic industry, as well as the continuous improvement of general-purpose plastics and engineering plastics in aspects like intensity, plastic molding products are gaining a wider and wider application scope, leading to an increased application quantity of plastic molding products. Composed of several groups of parts that include the molding…
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Disassembly of Single Parting Surface Mold
Tips for Mold Disassembly: Able to read mold assembly drawings, and understand how each part and component functions and works, as well as how they are installed and mated. Check parts, standard parts and special assembly tools against the checklist shown on the drawings; Select appropriate general-purpose assembly tools (such as screw drivers, Allen wrenches, copper…
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An Overview & Future Development Trend of the Chinese Plastic Injection Molding Industry
Recent years, plastic injection industry have a huge change in the environment of consumption upgrade. product requirements are getting an increase. In the past, large-scale production of precision-less plastic industry, now also need to rely on the mold industry to improve the accuracy of product demand. The production of plastic products starts with the design…
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How to make different colors for plastic products?
Plastics of different colors are being used every day, covering a broad range of applications and scenarios, but few people know or consider, how these color hues are created. A variety of coloring systems can be used to color the plastic materials, each possessing its unique features, benefits, and weaknesses, among which masterbatches, “salt &…
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International Mold Supply Chain Further Leans Towards China Mold Companies
When compared to the past, the technological level of the Chinese mold industry has been greatly improved, but the proportions of high, medium and low-end molds produced by Chinese manufacturers are extremely imbalanced, which severely hampers the development of the Chinese mold industry. Over the past few years, tremendous changes have taken place in the…