Kunshan mold processing flow

Glue position check

Check whether the glue position is even, if not, it will cause shrinkage and affect the appearance.

Draft criteria

1: Draft in reducing direction.

2: The maximum end of shaft is product dimension, and the minimum end of hole is product dimension.

Shrinkage accounting

Small shrinkage products (less than 5 ‰) can be shrunk according to experience. Large shrinkage products, such as a product that can be shrunk by 18 ‰ or 20 ‰ or even 22 ‰, must first seek the opinions of the person in charge before releasing, so as to avoid non conformity with the scale of supporting products.

Key points

1. Generally, inclined guide post is used as power, T-shaped groove is used for relatively small core pulling distance, and oil cylinder is used for core pulling when the distance is more than 30mm.

2. The point of view of the inclined guide post is 2-3 degrees smaller than that of the shovel.

3. If the rear die line extends into the front die and exceeds half of the total height, the shovel can be omitted, and the front die processing surface is used as the pressing surface.

4. If the row width is more than 100 mm, try to use two inclined guide pillars, and add guide grooves at the center of more than 150 mm.

5. Row positioning: try not to use bobbin marbles (force is not large enough), and use screws for positioning.

6. If the line position is at the top position, the tension spring must be placed. Otherwise, after the line position is opened, the die will be damaged due to the gravity effect and cannot be returned.

7. If there is a slanting top or thimble under the line position, reset the tissue first, or the line position may interfere with the slanting top or thimble.

8. Follow the walking position, take the beer handle, wrap the rubber position, and straight out.

9. The travel of the travel position shall be 2 to 3 mm greater than the buckle position, and the travel of the oil cylinder shall be 10 mm greater than the buckle position.

10. In order to add the firmness of the shovel, backhoe as much as possible.

Oblique roof planning

1. Generally, the inclined roof is 3-8 ° and does not exceed 15 °.

2. The ejection stroke is generally 0.5-1mm larger than the buckle position.

3. Ejection direction: the glue level shall be flat or upward, otherwise, delayed inclined jacking shall be done. When the width of the inclined roof is small, a frame is added to the ejector plate to reduce the height of the inclined roof to ensure the strength.