SU1497123A1 - Method of checkting resilient containers strength - Google Patents

Abstract

The invention relates to the control of products for rupture and can be used to obtain initial characteristics in the development of new container designs, as well as in verifying the quality of the manufacture of containers at manufacturing plants. The purpose of the invention is to simplify and improve the accuracy of the control. The fixing of the bottom of the container is carried out by adjusting the current supplied to the magnetic device. The bottom of the container is loaded with a metal granule volume. A vertical tensile force is applied to the neck of the container until the integrity of the container, which determines its strength, is broken. The magnitude of the applied vertical tension force is controlled by the pressure in the hydraulic system of the stand. 1 il.

Description

The invention relates to the control of products for rupture and can be used to obtain initial characteristics in the development of new container designs, as well as in verifying the quality of the manufacture of containers at manufacturing plants.

The aim of the invention is to simplify and improve the accuracy of control.

The drawing shows a test bench that tests the containers for strength.

The method of testing elastic containers for strength is carried out as follows.

When voltage is applied to the windings of a magnetic device, the bottom of the container with the metal granule functions as a core in the magnetic system, i.e. the bottom of the container is fixed. The magnitude of the current is chosen from the condition that the force of detachment of the container from the magnetic device must be greater than the value of the vertical tensile force — the test load for this type of container. The magnitude of the test load is controlled by the pressure in the hydraulic system and determined using calibration tables, which reflect the dependence of the container breaking force on the current in the magnetic device and the magnitude of the test load on the container on the pressure in the hydraulic system. These values are removed from instruments located on the control panel.

The test bench, on which the containers are tested for strength, consists of frame I with base 2, magnetic device 3, container 4, the bottom 5 of which is filled with about 300 kg of metal granule from the bottom, and the rest is plastic the device 6, blocks 7 and 8, the rod 9, the hydraulic cylinder 10 and the console AND control.

The stand works as follows.

At the bottom of the container, metal pellets 12 are poured, for example, metal with vj

to

with

Balls of 300 kg and the rest of the space is filled with plastic granule 13 to take the form necessary for use in the container. After that, the neck 14 of the container 4 is formed into an accordion and captured by the device 6. The gripping device 6 through the cable 15 and the blocks 7 and 8 are connected to the rod 9 of the hydraulic cylinder 10. The stand is controlled from the control panel 11. In the initial position, the rod 9 of the hydraulic cylinder 10 S is extended, and the bottom 5 of the container 4 loaded with metal and plastic granules volumes 12 and 13 is located on a magnetic device 3 having slots 16 and 17 for lifting forks. When a container of vertical tensile stress is applied to the windings of a magnetic device, the force of the container bottom, which is loaded with a bosom, which determines the strength of the container with a metal granulate, performs the function of The magnetic system, i.e., simplification and improvement of accuracy, strengthens the bottom of the container, strengthens the bottom of the container to the base by testing the current in the windings of the test stand by means of a magnetic system, Force the metal to secure the bottom of the container

device 3. The magnitude of the force of separation of the container is determined by the devices located on the remote control 11 controls.

If the neck 14 is broken, the container 4 can be removed from the stand, for example, with an electric forklift, since the magnetic device has slots 16 and 17.

Claims (1)

Invention Formula The method of control of elastic containers for strength, providing for attaching the bottom of the container to the base of the test bench, the application to the neck sloth container bottom. When the hydraulic system is turned on, the rod 9 of the hydraulic cylinder 10 starts to be drawn in and the gripping device 6 through the cable 15 and the blocks 7 and 8 act on the neck 14, trying to tear off the shell of the container 4 from the magnet25 a granulate followed by a change in the magnitude of the current applied to the magnetic device placed at the base of the test bench to a value exceeding the value of the vertical tensile force. the container of vertical tensile force until the price of its device 3 is violated. The magnitude of the container breaking force is determined by the instruments on the control panel 11. If the neck 14 is broken, the container 4 can be removed from the stand, for example, with an electric forklift, since the magnetic device has slots 16 and 17. Invention Formula The method of control of elastic containers for strength, providing for attaching the bottom of the container to the base of the test bench, the application to the neck a granulate followed by a change in the magnitude of the current applied to the magnetic device placed at the base of the test bench to a value exceeding the value of the vertical tensile force.