Preparation device and method for winding type heat regenerator for low-temperature refrigerator

Abstract

The invention discloses a preparation device and method for a winding type heat regenerator for a low-temperature refrigerator. The preparation device for the winding type heat regenerator for the low-temperature refrigerator comprises a rack, an unreeling shaft on which a film coil is placed, a reeling shaft for reeling a finished film product formed after the reeled film coil is perforated, a front guide roller, a rear guide roller, a punching mechanism for puncturing the film coil and a clamping mechanism for clamping the finished film product; and the unreeling shaft, the front guide roller, the punching mechanism, the clamping mechanism, the rear guide roller and the reeling shaft are sequentially arranged on the rack in an advancing direction of the film coil. The preparation deviceis relatively strong in structural stability and long in service life; and preferably, the preparation device can meet the requirements of different customers for winding type heat regenerators in different sizes and the requirements for different pore diameters of the winding type heat regenerators through the punching mechanism, realizes automatic preparation of the winding type heat regenerators, can realize industrialized and batch production and is high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of low-temperature refrigerator regenerators, and relates to a preparation device and method for a winding type regenerator for low-temperature refrigerators. Background technique [0002] Regenerative cryogenic refrigerator is a branch of cryogenic refrigeration technology applied under special conditions. The cooling temperature ranges from 193K to 3.1K, and the cooling capacity ranges from milliwatts to tens of watts, or even hundreds of watts. The scope of application is also more and more extensive, mainly used in the cooling of infrared components in infrared technology, the cooling of components such as quantum amplifiers and parametric amplifiers in cryogenic electronics, the cooling of low-temperature thermal imaging cameras in low-temperature medicine, and the cooling of low-temperature micro-cold knives, etc. With the rapid development of modern science and industrial technology such as space tec...

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Problems solved by technology

[0005] In the prior art, such as the invention patent with the publication number CN105736176A, the structure of the winding regenerator is fixed by injecting glue between every two adjacent turns to ensure that they cannot move each other. It is impossible to effectively adjust the slits between two adjacent turns of the wound regenerator to a state of even distribution, and when it is necessary to process wound regenerators with different slit sizes, the amount of glue injection must be adjusted. The slit size accuracy of the heater is not well controlled, and the processing procedure is cumbersome. It is usually only suitable for small-scale research and development in the laboratory. It is difficult to guarantee the consistency and production efficiency of the glue injection method during batch preparation.

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