Patent TW-I228072-B (TW)
Title: Measuring method for detecting parallelism precision of mold-clamping mechanism of injection-molding machine
Inventor: HUANG SHENG-JIE
IPC: B29C45/64
Filed: 2003-09-03
Granted: 2005-02-21
Abstract: The present invention relates to a measuring method for detecting parallelism precision of mold-clamping mechanism of an injection-molding machine, which is operated with the cooperative use of measuring jig and filler gauge, the jig being in the form of a mold, and in particular to a measuring method for detecting parallelism precision between mold-clamping front board and middle board, and which is arranged between the mold-clamping front board and the mold-clamping middle board, and characterized in that a detection system is arranged in the front board of the injection-molding machine, comprising a combination of pressure sensor and disk spring and employing the feature of low compression and high load of the disk spring to obtain difference between readings of the pressure sensor that is caused by gap generated due to insufficient parallelism precision. This design is particularly suitable for measurement performed on non-column mold-clamping unit. Another function is to measure the difference in parallelism precision of the mold-clamping unit caused by injection pressure. The measure jig mounted to the movable board is formed with a cross-shaped groove by grinding. The purpose of the groove is to detect the difference between gaps at upper and lower edges and left and right side edges by using filler gauge at the time the mold is closed. The measuring method allows for observation of the parallelism precision between the mold-clamping front board and middle board. The present invention provides a mechanism that allows for easy measurement of the parallelism precision and is a simple and effective measuring tool for detecting parallelism precision of mold clamping unit of injection-molding machine. The present invention relates to a measuring method for detecting parallelism precision of mold-clamping mechanism of an injection-molding machine, which is operated with the cooperative use of measuring jig and filler gauge, the jig being in the form of a mold, and in particular to a measuring method for detecting parallelism precision between mold-clamping front board and middle board, and which is arranged between the mold-clamping front board and the mold-clamping middle board, and characterized in that a detection system is arranged in the front board of the injection-molding machine, comprising a combination of pressure sensor and disk spring and employing the feature of low compression and high load of the disk spring to obtain difference between readings of the pressure sensor that is caused by a gap generated due to insufficient parallelism precision. This design is particularly suitable for measurement performed on a non-column mold-clamping unit. Another function is to measure the difference in parallelism precision of the mold-clamping unit caused by injection pressure. The measure jig mounted to the movable board is formed with a cross-shaped groove by grinding. The purpose of the groove is to detect the difference between gaps at upper and lower edges and left and right side edges by using filler gauge at the time the mold is closed. The measuring method allows for observation of the parallelism precision between the mold-clamping front board and middle board. The present invention provides a mechanism that allows for easy measurement of the parallelism precision and is a simple and effective measuring tool for detecting parallelism precision of mold clamping unit of injection-molding machine.