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2022
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Two-color mold injection molding and design, how much do you know?
Two-color mold refers to two kinds of plastic materials in the same injection molding machine, two kinds of molding, but the product only out of the mold once. This molding process is also commonly referred to as two-part injection molding, which is usually completed by a set of molds and requires a dedicated two-color injection molding machine. At present, two-color molds are becoming more and more popular in the market. This technology can make the appearance of the product more beautiful, and the color can be changed without spraying, but the requirements for design and injection molding are also high.
Two-color mold refers to two kinds of plastic materials in the same injection molding machine, two kinds of molding, but the product only out of the mold once. This molding process is also commonly referred to as two-part injection molding, which is usually completed by a set of molds and requires a dedicated two-color injection molding machine. At present, two-color molds are becoming more and more popular in the market. This technology can make the appearance of the product more beautiful, and the color can be changed without spraying, but the requirements for design and injection molding are also high.
1. The basic theoretical principles of two-color mold design:
(1) Make hard rubber once and soft rubber twice;
(2) transparent do 1, non-transparent do 2;
(3) high molding molding once, low molding molding twice;
The above is the basic principle of making a two-color mold, otherwise the mold will turn white; in addition, try to use the glue breaking method when sealing, instead of cutting the glue, even if the customer is advised to modify the product by breaking the glue.
2. The guide sleeve of the blank guide pillar is symmetrical from top to bottom and front to back.
3. The rear mold should be rotated 180 degrees, and the front mold should not be moved.
4. The product spacing is based on the nozzle spacing of the injection molding machine. Some foreign two-color injection molding machine nozzle spacing is adjustable, some cannot be adjusted, and domestic cannot be adjusted.
5. Two independent ejection systems and two ejector pins. The two products behind the mold are the same, and the thimble is the same. It is a rotational relationship and must not be converted into a relationship.
6. The thimble plate can only be reset by spring, not by screw, because the rear mold rotates.
7. The edges are locked on the four sides of the mold design center, and the front and rear molds are symmetrical, otherwise the rear mold will not match the front mold after rotating the 180.
8. If the distance between the glue point and the injection molding machine gun, the ejector rod hole should be made into a waist shape, because the distance of the ejector rod of the injection molding machine cannot be adjusted. Please note that most of the two-color injection molding machine injection molding nozzles in China cannot be adjusted.
9. Note that the customer provides the injection molding machine parallel to the nozzle direction for the X axis or Y axis to determine the product layout.
10. The direction of water in and out is on the ground side, and the water in each cycle is on the same side. Water cannot be entered in the sky, and the water is on the ground side, because the mold behind must rotate 180 degrees. Pay attention to the size of the mold embryo. The height of the water tank of the injection molding machine cannot be exceeded, otherwise water cannot be accepted.
11. The product for the first injection should be placed on the non-operating side, because after the first injection, the product should be rotated 180 degrees for the second injection, just turning to the operating side to facilitate access to the product.
12. The code mode of the export mode should be on the actual operation side and the non-operation side, not on the enterprise side, because their products should be fully automatic.
13. Note on classification surface: The classification surface of the rear mold is the classification surface obtained after the merger of two products. The classification surface of the front mold selects a single product and does not need to combine the product classification surface.
Latest information
On May 20, 2023, Xinyu launched an outdoor expansion activity with the theme of "Cohesion to Win the Future" in Anji Zhuhai. Through the development of the activity, the cohesion and overall centripetal force of the employee group were enhanced, and the positive communication between employees was established., Mutual trust, unity and cooperation, cultivate team awareness, and increase the sense of responsibility of employees. One by one well-designed team building games aroused everyone's strong interest and enthusiasm. In the process of cross-game experience, the team members won one by one with the cooperation. This activity not only enhanced the cohesion between Xinyu employees, but also cultivated a tacit understanding between each other.
2023/9/21, the launching ceremony of the digital supply chain platform of Wujiang Xinyu Precision Mould Co., Ltd. was solemnly held in Suzhou Taihu International Conference Center. Gan Xiangquan, general manager of the company, spoke on behalf of Xinyu Company. Since then, the company has officially taken a big step towards a new model, a new journey and a new future!
Plastic mold design and manufacturing personnel must carefully carry out mold design according to the above basis and requirements provided by customers. When designing molds, the above contents should be specified one by one and expressed in the form of drawings and technical documents. Then let's learn about the detailed operation of the general procedures for plastic mold design and manufacturing!
Any product has its own quality, so does a set of plastic mold design and manufacturing. Some factories can only produce low-quality molds, while others can produce high-quality plastic molds. Then, let's learn about the design and manufacturing process and technological process of plastic molds!
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