SU887914A1 - Device for measuring threaded articles - Google Patents

Description

I

The invention relates to a counter-measuring technique, namely, devices for the functional control of threaded caps designed for hermetic sealing of vessels in the canning, dairy, food and other industries.

A device for measuring threaded products is known, comprising a housing made in the form of a threaded caliber, which allows determining the dimensions of the monitored thread and its location relative to the stop.

A disadvantage of the known device is that with its help it is impossible to determine the correspondence of the dimensions and location of the thread under the specified sealing conditions on the end surfaces in conjunction with the lid and vessel.

The purpose of the invention is to provide verification of the suitability of the dimensions and location of the thread in the cracks under the established conditions of its conjugation with the vessel, i.e.

expansion of technological capabilities of the device.

The goal is achieved by the fact that the device is equipped with a spring-loaded calibrated spring mounted in the housing coaxially with its thread, with a stop at one end and a contact element at the other end, repetitive in its shape of the surface of the part that is controlled with the part being controlled, and an indicator of the movement of the rod made in the entrance of a ring placed between the stop of the shaft and the end of the body and mounted on the rod with the possibility of free rotation on it when it is loaded; that effort, superior in force of a calibrated spring.

The drawing shows the proposed

30 device, cut,

Claims (1)

The device includes a housing 1, made in the form of a threaded gauge, c1 ГжщвЬ to control one of the pre3; individual deviations of the diameter of the thread. A stem 2 is installed in the housing coaxially with its thread, on one end of which a stop 3 is placed, and on the other is a contact element 4, which repeats in its own form the surface of the associated part (vessel). The rod 2 is spring-loaded relative to the housing 1 of the calibrated spring 5, the force of which corresponds to the value required for providing sealing during screwing with the vessel. On the rod 2 between its anvil 3 and the end of the body there is a ring 6, $ sm of the indicator of the movement of the rod. The ring 6 is mounted on the rod with the possibility of free rotation on it when the rod is loaded from the side of the contact element with a force exceeding the force of the calibrated spring 5. To adjust the force of the calibrated spring 5, the adjusting ring 7 is installed on the rod 2. Adjusting the position of the end face of the contact element 4 relative to the thread the case 1 is provided by changing the position of the stop 3 on the rod 2; The control using the proposed device is carried out by screwing the tested cover with the thread of the box: ment, which is set FP fastening the lid to the container, and B is performed two stages. Initially, the lid is controlled by the device, in which the thread on the body 1 is made out of the upper limit deviating the diameter of the vessel. In this case, the unscrewing of the lid with the thread of the body 1 indicates that the lid thread is defective. When screwing the cover with the thread of the housing 1 and with the correct location of its thread relative to the bottom of the bottom. cap, acting on the contact element 4 and overcoming the force of the calibrated wire 5, moves the stem 2 with the stop 3 and the ring 6 can freely rotate with the stem 2, If the thread on the clamp is located relative to its bottom at a distance of more than allowed, screwing the lid with the thread of the housing 1, the bottom of the lug will not reach the contact element 4 and the ring 6 will remain as it will be 1YM between the stop 3 of the stem 2 to the end of the housing 1, which indicates the braking of the lid, as if screwing this lid with the vessel will not be provided vi sealing. Then the caps, which passed the test on the device with the thread, made according to the upper limit deviation of the thread diameter of the vessel, are controlled by the device, which thread is made according to the lower limit deviation of the diameter of the thread of the vessel. In this case, only the impregnation of the thread diameter and its location relative to the bottom is checked to achieve tightness conditions of the mating of the lid with the vessel, i.e. if, when screwing the thread fastener of the device, ring 6 is released by moving the stem 2 from the bottom. the lid on the contact element 4, then the mat is considered finally suitable, otherwise it is rejected. Thus, with the help of the device proposed, a complete functional control of the threaded caps designed for hermetic sealing of vessels is provided. Formula for obtaining a device for measuring threaded products, comprising a housing made in the form of a threaded caliber, characterized in that, in order to expand technological capabilities, it is provided with a spring-loaded, calibrated spring-loaded stem, coaxially with its thread, installed in the housing and on the other there is a contact element, which in its form repeats the surface of the mating part with the part being monitored and the indicator of current movement made in the form of a ring placed between the stop m stem and the end of the housing and mounted on the rod, with a free rotation thereon th at nagruzhenin rod from the engaging element a force superior conductive tashrovannoy spring force. Sources of information taken into account during the examination 1. GOST 6042-71 (prototype).