A rapid anti-deformation mold repair method for injection molded products
An injection molding product and anti-deformation technology, which is applied in the field of rapid anti-deformation mold repair of injection molded products, can solve problems such as poor effect and complicated anti-deformation mold repair process, and achieve simple and fast operation, reduce production costs, and overcome complex processes.
Active Publication Date: 2015-11-18
JIANGSU CHANGSHU AUTOMOTIVE TRIM GRP CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to overcome the deficiencies of the above-mentioned prior art, the task of the present invention is to provide a rapid reverse deformation mold repair method for injection molded products, which solves the problem of complex reverse deformation mold repair process and poor effect of product warping deformation in one direction
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The present invention will be further described below in conjunction with embodiment.
[0014] Taking the mold repair of the end cover of the fuel tank liquid separator as an example, the material of the end cover of the fuel tank liquid separator is high-density polyethylene PE, and a point gate with a diameter of 0.8mm is used for injection molding. Since the stress near the center of the gate and the shrinkage deformation of the material are greater than At the edge, the product shrinks severely to the center after injection molding, and the product is warped upwards around.
[0015] For the specific mold repair method of this product, please refer to figure 1 , taking the flatness-required side of the deformed product as the reference plane, that is, the connecting surface of the tank liquid separator end cover 2 as the reference plane, and determine two warping deformation critical points 3 on the outer contour of the reference plane. Place the connection surface ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a fast reversible deformation mould repair method of an injection moulding product. The fast reversible deformation mould repair method comprises the following steps of: determining two buckling deformation critical points on the external profile of the reference plane of the injection moulding product; cutting the injection moulding product by taking the connecting line of the buckling deformation critical points as a cutting line and the demoulding direction of a product as the motion direction of the cutting line; rotating a part of the cut injection moulding product at an angle by taking the cutting line as a rotating axial line and the reverse direction of buckling deformation as a rotating direction; connecting the mould data of two parts of rotated products to obtain integral mould data; repairing a mould through the integral mould data. The fast reversible deformation mould repair method disclosed by the invention only needs to repair the mould positioned at a half side and is simple in data acquisition mode and reliable in effect.
Description
technical field [0001] The invention relates to a method for repairing molds of injection molding products, in particular to a method for quickly reverse deformation mold repairing of injection molding products. Background technique [0002] As we all know, warpage of injection molded products is often one of the most common and difficult problems to solve. The usual solution is to first rely on adjusting the injection molding process and adjusting various process parameters to obtain smaller deformation, but it is often difficult to solve it completely. Or rely on the plastic tooling and adopt the method of post-correction to solve the deformation problem. This method is also time-consuming, laborious and difficult to guarantee the stability of quality. Even if someone thinks of reverse deformation modeling and mold repair of the product, it is difficult to implement due to various reasons such as unpredictable effects, high risk, heavy workload, high cost, and long time. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/74
Inventor 刘林陈亮秦立民
Owner JIANGSU CHANGSHU AUTOMOTIVE TRIM GRP CO LTD