초록 ▼

A position sensing switch combined with a slide retainer for injection molds of the type having at least a portion of the molding cavity formed in slides which are slidingly mounted on one of a pair of mold halves such that the slides advance between open and closed positions laterally relative to t

A position sensing switch combined with a slide retainer for injection molds of the type having at least a portion of the molding cavity formed in slides which are slidingly mounted on one of a pair of mold halves such that the slides advance between open and closed positions laterally relative to the mold halves as the mold halves are similarly advanced between open and closed positions. The slide retainer comprises a locking member, such as a spring loaded plunger secured on the slide, and a receiver, such as a detent formed on a slide plate of the mold half to which the slide is slidably connected. The detent is formed in a cover plate extending over a cavity extending into the slide plate and in which the switch is positioned. The switch is positioned with its plunger in alignment with a hole extending through the cover plate and into the detent such the slide retainer plunger engages the switch plunger, directly or indirectly, when the slide retainer plunger is advanced into the detent, activating or changing the switch condition and electronically verifying the position of the slide in the open position. The switch is mounted on a pivotal switch bracket within the cavity which permits adjustment of the position of the switch plunger relative to the detent to adjust the sensitivity of the switch.

대표청구항 ▼

[ What is claimed and desired to be secured by Letters Patent is as follows:] [1.] A slide retainer and position sensing device for a mold having first and second mold halves advanceable toward and away from each other, at least one of the mold halves having a slide plate and a slide, in which a por

[ What is claimed and desired to be secured by Letters Patent is as follows:] [1.] A slide retainer and position sensing device for a mold having first and second mold halves advanceable toward and away from each other, at least one of the mold halves having a slide plate and a slide, in which a portion of a mold cavity is formed, attached thereto; said slide sliding laterally inwardly and outwardly on the slide plate as the mold halves are drawn together or pulled apart, the slide retainer and position sensing device comprising:a) a locking member secured to a first of said slide or said slide plate;b) a receiver formed in a second of said slide or said slide plate and positioned to receive said locking member when said slide is advanced outward to an open alignment as the mold halves are opened, to prevent further movement of the slide relative to the slide plate until the mold halves are drawn together again; andc) a switch recessed in said slide or said slide plate and positioned relative to said locking member or said receiver such that advancement of said locking member into said receiver changes the condition of said switch.