SU1606800A1 - Method of heat insulation of vessels - Google Patents

Abstract

The invention relates to vacuum technology, in particular, to the technology of loading a vacuum chamber with thermally insulated vessels for vacuuming and sealing them together with controlling the fixation and unloading of products, and allows speeding up the process by ensuring simultaneous sealing of several vessels and controlling their loading and unloading. Simultaneous sealing and single loading - unloading of products is carried out due to the fact that each product in the individual matrix of the matrix is loaded from below, placed and fixed one below the other, and the sealing force is externally applied from below. In this case, the products act upon each other through the punches of the matrix, and the unloading takes place under the action of gravity with the supporting force of the force mechanism and with the impulse which is turned on by the latch. 4 il.

Description

The invention relates to vacuum technology and can be used, in particular, for the manufacture of vessels with vacuum thermal insulation, such as all-metal vacuum thermoses, etc.

The purpose of the invention is to accelerate the process by ensuring the simultaneous sealing of several vessels and controlling their loading and unloading.

FIG. 1 shows a device for carrying out the method during the installation of vacuum vessels for sealing, longitudinal section: FIG. 2 - also during the evacuation of the vessels; in fig. 3 - the same, during the sealing of vessels, compressing them with a piston; in fig. 4 - the node of FIG. 1 (vessel sealing unit, incision).

An apparatus for carrying out a method for insulating vessels comprises a vacuum chamber 1 with a cover 3 which is hermetically movably mounted on a guide 2.

The vacuum chamber 1 is thermally insulated by thermal insulation 4, has a pumping out pipe 5, heaters 6 for heating and a vacuum-tight movable input of a spring-loaded rod 7 of clamp 8 with an electromagnetic drive 9. For lifting and sealing the cover 3, loading and unloading vessels 10 and sealing them serve as power a mechanism (pneumatic actuator) 11, which is equipped with a stem 12 with an opening 13 for checks 14. At the end of the stem 12 a container 15 is installed to install a die 16 with a vessel 10. The latter has a sealing assembly consisting of a recess with an opening 17, germs eti- of the mounting element, the frame 18 of the solder and the plug 19. The vacuum unit is fixed on the bracket 20.

The method is carried out as follows.

Vessels 10 designed for vacuuming, for example, Dewar vessels, are inserted into individual punches

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16 and individually set in the vacuum chamber 1 one below the other using the actuator 11 and the latch 8.

A punch-matrix 16 with a vessel 10 is mounted on the plate 15, the pneumatic actuator 11 is activated. The rod 12 is pushed under the action of air pressure and the vessel 10 is lifted into the vacuum chamber 1 until the cover 3 restricts the movement of the rod 12. When the vessel 10 moves and the punch - matrix 16 up in the chamber 1, they do not encounter obstacles from the side of the latch 8, since its rod is spring-loaded and and. a child who presses when moving the product up. When opening the cover 3 and turning on the movement of the stem 12 downward, the vessel 10 and the die 16 are also lowered until the lock clamp 8 does not stop the movement of the die, and with it the vessel 10. From this moment the stem 12 together with the plate 15 goes down next to the next vessel 10, The operations are repeated until chamber 1 is fully loaded with vessels 10 with punches 16. Next, chamber 1 is sealed with a cover 3, evacuated, together with the products and heated to a certain temperature. When a given degree of vacuum is reached, the check 14 is removed from the hole 13 on the pneumatic actuator stem 11 and the stem 12 moves upward inside the vacuum chamber, lifting the entire stack of vessels 10 and resting it in the upper lid (not marked) of the vacuum chamber 1, while on the other through the punches 16, the vessels 10 are pressurized. After that, chamber 1 is depressurized, pneumatic actuator 11 is turned on and, when rod 12 moves down, the electromagnetic drive of clamp 8 is switched on for a short time, which, under the action of electromagnetic forces, draws rod 7 into the electromagnet flush with the wall of the vacuum chamber and allows the matrix 16 to go down with the vessel 10 (one komplekt) under the action of gravity. After ni with installation of the evacuated and sealed vessel 10, the pneumatic actuator 11 is switched to the lifting rod.

Initially, the rod 12 with the aid of the plates 15 lifts the entire foot of the vessels (without one previously unloaded vessel), and thus the force is removed from the 7-locking rod 8, the electromagnet is activated, the pneumatic actuator 11

switch to the downward movement, and the next product together with the die, due to gravity, is separated from the foot of the vessels and lowered. At the same time, the electromagnet is switched on pulsed, the pulse duration is sufficient for the passage of a single vessel with a puncheton matrix past the rod. Next, the vessel 10, together with the perforated matrix 16, is removed from the plate 15 and the vessel 10 is separated from the perforated matrix. The process is repeated until the vacuum chamber is completely unloaded.

Claims (1)

Invention Formula The method of thermal insulation of vessels, including their single-piece loading into a vertical vacuum chamber, evacuation of the chamber cavities and vessels with their heating, sealing of vessels under vacuum using a force mechanism by applying the force generated in the loading direction, and unloading vessels from the chamber (the chamber differing from that, in order to speed up the process by ensuring the simultaneous sealing of several vessels and controlling their loading and unloading, before loading, the vessels are installed in individual punch and placing the matrix on the rod lift mechanism coaxially with the vacuum chamber and beneath it, loading is carried out from bottom to top until the chamber is completely filled, placing the vessels one below the other with their fixation, and unloading is carried out by disabling fixation, using gravity vessels. Phie.1 fig.d Schigl