When we started the design and manufacture of plastic molds, we carefully considered several options and weighed the advantages and disadvantages of each option. One of them is desirable, and we must take the T-type seriously. Due to the understanding of time, the design that was considered reasonable at that time, even after production and use practice, there must be room for improvement. After putting forward the design scheme, we should communicate with the factory more to understand the processing process and the situation in manufacturing and use. Each mold has certain analysis experience. Only by summing up the gains and losses can we continuously improve the design level of the mold. When designing, we should refer to similar drawings designed in the past and learn from their experiences and lessons. The plastic mold design and manufacturing department should be a whole, and each design member cannot govern independently, especially in summing up the conclusion of mold design, we must have a unique style. Then, let's learn about the ideas and processes of plastic mold design and manufacturing!

Plastic mold design and manufacturing basis

 

Plastic mold design and manufacturing is mainly based on the product drawings and templates provided by customers. Designers should carefully analyze and digest products and templates. In addition, during the design process, all items should be checked.

 

1. Dimensional accuracy is related to the correctness of dimensions.

 

1) Clinker products with high appearance requirements and low dimensional accuracy requirements, such as toys, have the same specific size except for the formula.

 

2) Inspection of products with strict size requirements.

 

2. Is the formwork lifting slope reasonable

 

3. Product wall thickness and uniformity.

 

4. Type of plastic. (The type of plastic, the choice of steel for which the mold is being tried to be stolen, and the determination of the shrinkage rate)

 

5. Surface requirements.

 

6. Product color. Generally speaking, the color does not directly affect the mold design. When the product wall thickness and shape are large, it is easy to produce color spots; in addition, the darker the color, the more obvious the defects of the product.

 

7. Whether there is post-processing after the product is formed. When there is a plating product on the surface and only one cavity, the auxiliary flow channel connection product should be considered, and the plating process can be separated after completion.

 

8. Product batch, product batch is an important basis for mold design, customers should provide a range to determine the number of mold cavities, size, mold selection and service life. 9. Injection molding machine specifications.

 

10. Other customer requirements. The designer should carefully consider and check to meet the possibilities and requirements.

 

The general process of plastic mold design and manufacturing

 

1. Analyze digestion products and templates.

 

2. Should understand whether the customer on the injection machine specifications requirements, determine the mold size range.

 

3. Determination and sorting of the number of cavities.

 

4. Determination of parting surface.

 

5. If there is a row position and oblique structure, you should first understand it.

 

6. gating system design

 

7. Determination of the mosaic structure.

 

8. Push. Reset the system design.

 

9. Cooling. Heating system design.

 

10. Guide device. Positioning device.

 

11. Determine the type of embryo, select the standard.

 

12. Selection of die steel.

 

13. Complete the structure diagram, mold blank diagram and material.

 

14. Print drawings, check and submit to mold design team leader and supervisor.

 

Plastic mold design and manufacturing prototypes and repair products

 

Plastic mold design and manufacturing in the selection of molding materials, molding equipment, in the expected process conditions for mold design, but people often do not know much, so after the completion of the mold processing, to carry out trial testing to confirm the quality of the molded products. Always after notice, conduct a demonstration of error elimination.

 

There are many kinds of bad phenomena in plastic parts, but the reasons are also very complex, there are mold reasons and process conditions, the two are often intertwined. Before repairing the parts, it is necessary to conduct detailed analysis and research according to the actual situation of the undesirable phenomena of the parts, find out the causes of the defects of the parts, and then propose repair methods. As the molding conditions are changeable, after changing the molding conditions, if the problem cannot be solved by changing the molding conditions, it is generally considered to repair the mold. The mold maintenance should be more cautious and should not be rashly. The reason is that if the mold conditions are changed, greater transformation or restoration cannot be carried out.

 

Plastic mold design and manufacturing archive summary data

 

After the plastic mold design and manufacturing test, when not in use for the time being, the mold release residue, dust, oil stain, etc. shall be removed, butter or other anti-rust oil or anti-rust agent shall be applied, and the design mold shall be sealed and stored in the storage place. The design mold shall be successfully processed until the inspection is qualified. The technical data generated during this period, such as the base drawing, mold design specification, inspection record sheet and inspection record sheet, seem to be very troublesome, which is helpful for future mold repair and design.

 

The above is the plastic mold design and manufacturing ideas and processes, if you need to know more, you can contact us at any time!