THIẾT TRÌNH THIẾT KẾ CHẾ TẠO KHUÔN MẪU ĐỦ 25 BÀI_14_EN

Cooling system


Mission,?
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If the cooling system for a specific cause has not taken the heat out mold effectively, making the
temperature in the mold constantly increasing, which increases the production cycle.


technical requirement
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Keep the temperature stable mold for plastic materials can heat evenly. 91

- Cooled Fast, avoid the not heat up, causing a distortion products caused defects.
- Reduce the cycle time, increase production capacity


1. The components of the cooling system in plastic injection mold


Arrange the cooling tube


Laws designed to cool channel

Làm nguội đều

Lưu ý
 Channel should cool to near surface cavity to better cooling .. Design waterline so that 1 input
and 1 output.

 -The Split cooling channels into the cooling loop.


Channel Cooling
 - Cooling channels must be drilled to create roughness turbulence helps better heat
exchanger 3-5 times laminar flow ..

-The cooling a surface water b / c -Members metal mold plastic components d index


3. Design of cooling channels


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The thickness of the product (mm)
Cooling channel diameter (mm)
Distance plate cooling channels to the product
The distance between the two plates of cold channel

2 ÷ 4 (0:08 ÷ 0:16)
10 ÷ 12 (0:40 ÷ 0:47)
2 ÷ 2.5D
2 ÷ 3d
4 ÷ 6 (0:16 ÷ 0:24)
12 ÷ 14 (0:47 ÷ 0:55)


Cooling System baffled

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This is one simple system for the cooling of small cores, although the bulkhead row may use in
the larger core


4. Cool the mold core
Làm lạnh có vách ngăn


Cooling type nozzle
Với hệ thống này, nước làm nguội sẽ đi vào ở giữa và rẽ sang 2 bên nên
khả năng giải nhiệt rất đều.

 Type nozzle system for high productivity than style baffles (Baffe) and help
heat evenly distributed on campus


c) Design of systems for angle hole format


d) Cooling System hole gradually form


e) cooling system spiral


Details used in the cooling system
a)

Các nút chỉnh dòng (pressure plugs)


Buttons and sticks deflecting line (diverting plug
and rod)


A sort button and stick to deflect the line


Vách tròn (bubbler tube)

Là loại ống dùng để làm nguội những lõi nhỏ được cấy vào khuôn.


Vách phẳng hoặc vách xoắn (baffle or spiral baffle)


Ống dẫn nhiệt (thermal pin)
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Implants used to cool the core or cores slipped over the side


Đầu nối chuyển tiếp (elbow)


Đầu nối (connector)