When designing in the school, the mold base part should be designed by yourself; in the design of the production site, the standard mold base should be selected as much as possible, and the form, specifications and standard code of the standard mold base should be determined.
After the size of the mold base is determined, the necessary strength or stiffness calculation of the mold parts is necessary to check whether the selected mold base is appropriate, especially for large molds. This is particularly important.
Standard parts include general standard parts and mold-specific standard parts. General standard parts such as fasteners. Standard parts for molds such as positioning rings, gate sleeves, push rods, push pipes, guide columns, guide sleeves, springs for molds, cooling and heating elements, sequential parting mechanisms and standard components for precision positioning.
Students who want to study mold design can privately receive free study materials and study videos. If you do n’t understand, you can also consult your teacher online to answer your questions.
According to the layout of the front cavity and the mutual position and size, combined with the standard mold frame, the standard mold frame 200 × L can be selected, where L is 315mm, which can meet the requirements.
There must be a unified datum on the mold base, and the datums of all parts should be pushed out from this datum, and the corresponding datum marks should be printed on the mould. Generally, the fixed mold base plate and the fixed mold fixed plate should be positioned with pins;
The fixed plate between the movable and fixed molds is positioned by the guide parts; the detached fixed plate is positioned by the guide parts and the fixed plate of the movable mold or fixed mold; the mold is positioned by the positioning ring of the casting sleeve and the central positioning hole of the injection machine;
The movable mold backing plate and the movable mold fixing plate do not require precise positioning of the pins; the fast padding does not require accurate positioning with the moving mold fixing plate using pins; the ejecting backing plate does not need to be accurately positioned with the ejecting fixed plate using pins.
All screws on the mold should use hexagon socket screws as far as possible; there should be no protruding parts on the outer surface of the mold; the outer surface of the mold should be smooth and clean, and coated with anti-rust oil.
There should be a parting gap between the two templates, that is, during assembly, debugging and maintenance, the two templates can be easily separated. Common forms of parting gap are as follows:
1. Fixed mold fixed plate (fixed mold base plate) (250
315, thickness 25mm)
Mainline bushing fixing hole and its H7 / m6 transition fit;
Connected to the fixed mold fixing plate through 6 × 10 hexagon socket screws;
The fixed mold backing plate is usually the fixed template at the connection between the mold and the injection machine.
Read more: https://www.ldmould.com/
After the size of the mold base is determined, the necessary strength or stiffness calculation of the mold parts is necessary to check whether the selected mold base is appropriate, especially for large molds. This is particularly important.
Standard parts include general standard parts and mold-specific standard parts. General standard parts such as fasteners. Standard parts for molds such as positioning rings, gate sleeves, push rods, push pipes, guide columns, guide sleeves, springs for molds, cooling and heating elements, sequential parting mechanisms and standard components for precision positioning.
Students who want to study mold design can privately receive free study materials and study videos. If you do n’t understand, you can also consult your teacher online to answer your questions.
According to the layout of the front cavity and the mutual position and size, combined with the standard mold frame, the standard mold frame 200 × L can be selected, where L is 315mm, which can meet the requirements.
There must be a unified datum on the mold base, and the datums of all parts should be pushed out from this datum, and the corresponding datum marks should be printed on the mould. Generally, the fixed mold base plate and the fixed mold fixed plate should be positioned with pins;
The fixed plate between the movable and fixed molds is positioned by the guide parts; the detached fixed plate is positioned by the guide parts and the fixed plate of the movable mold or fixed mold; the mold is positioned by the positioning ring of the casting sleeve and the central positioning hole of the injection machine;
The movable mold backing plate and the movable mold fixing plate do not require precise positioning of the pins; the fast padding does not require accurate positioning with the moving mold fixing plate using pins; the ejecting backing plate does not need to be accurately positioned with the ejecting fixed plate using pins.
All screws on the mold should use hexagon socket screws as far as possible; there should be no protruding parts on the outer surface of the mold; the outer surface of the mold should be smooth and clean, and coated with anti-rust oil.
There should be a parting gap between the two templates, that is, during assembly, debugging and maintenance, the two templates can be easily separated. Common forms of parting gap are as follows:
1. Fixed mold fixed plate (fixed mold base plate) (250
315, thickness 25mm)
Mainline bushing fixing hole and its H7 / m6 transition fit;
Connected to the fixed mold fixing plate through 6 × 10 hexagon socket screws;
The fixed mold backing plate is usually the fixed template at the connection between the mold and the injection machine.
Read more: https://www.ldmould.com/
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