Down filling structure for down filling machine

Abstract

The invention discloses a down filling structure for a down filling machine, which comprises a down feeding pipe; the left end of the down feeding pipe is provided with a down inlet of the down feeding pipe, and the right end thereof is provided with a down outlet of the down feeding pipe; an air leaking pipe is located at outside of the down feeding pipe, its left and right ends are sealed; an air leaking cavity is arranged between the inner wall of the air leaking pipe and the outer wall of the down feeding pipe, and the air leaking cavity is connected to outside. The down filling structure is characterized in that a space ring is fixed on the outer wall of the down feeding pipe, an advanced air leaking cavity sleeve pipe is arranged between the down inlet of the down feeding pipe and the space ring; the right end face of the advanced air leaking cavity sleeve pipe is mutually jointed with the left end face of the air leaking pipe at the position of the space ring; the space between the inner wall of the advanced air leaking cavity sleeve pipe and the outer wall of the down feeding pipe is formed to be an advanced air leaking cavity, and the advanced air leaking cavity is connected with the down feeding pipe; an advanced air leaking opening is arranged on the advanced air leaking cavity sleeve pipe, and connected with the advanced air leaking cavity and provided with an advanced air leaking control valve; the advanced air leaking cavity is separated from the air leaking cavity by the space ring. The down filling structure avoids the heaving of a feather cylinder and improves the down filling efficiency; besides, the down filling structure can avoid that the path from the down inlet of the down feeding pipe to the down outlet of the down feeding pipe is too long; the structure is simple; the blockage of the advanced leaking air control valve cannot be generated.

Description

Technical field [0001] The invention belongs to the technical field of down product filling equipment, and specifically relates to a down filling tube structure for a down filling machine. Background technique [0002] The aforementioned down products mainly but not limited to down jackets, duvets, down cushions, down pillows and even down dolls, etc. When making such products, it is necessary to fill the down into a prefabricated tube, and then seal it to form down. Products. [0003] Before the introduction of dedicated down filling machines, most down product manufacturers used manual operation to fill down into the bobbins. This operation method has the following shortcomings: one is the labor intensity of the workers and the efficiency is low; the other is the large filling error. Affect the quality of down products and even damage the reputation of down products manufacturers, because in the process of manual down filling (filling), workers use electronic scales or similar m...

AI Technical Summary

Problems solved by technology

But this CN104925733A has the following shortcoming: one, owing to a transition pipe is set between the inlet and outlet pipes and a filter screen (annular mesh cover) is provided in the transition lumen of the transition pipe, the When the down passes through the filter screen and enters the down pipe, although a part of the air can be drawn out from the mesh on the filter screen, the exhaust port of the transition pipe and the exhaust pipe in turn, the length from the down inlet to the down outlet is significantly extended, thus To a certain extent, it will also affect the filling speed; secondly, in order to meet the matching requirements for the transition tube with a tee effect, it is necessary to connect the end of the down tube towards the transition tube and the end of the down tube towards the transition tube. The outer wall is processed into and out of the fleece pipe threads respectively, and the transition pipe internal threads are respectively processed on the inner walls of both ends of the transition pipe, so whether it is manufacturing or assembling is all relatively troublesome; third, because the pipe wall of the fleece pipe is If there is no vent hole, it is necessary to install a breathable mesh at the end of the fleece outlet facing the fleece outlet (the two ends of the breathable mesh are respectively fixed on the fleece outlet through the first and second fixing rings). A cavity is formed between the outer walls of the down tube, and the air returned from the down tube leaks out through the cavity, but the air in the down tube passes through the cavity between the aforementioned air mesh and the outer wall of the down tube. When the down leaks out, the down will also enter the cavity along with the return air flow, resulting in blockage of the cavity. If the blockage cannot be unblocked in time, it will easily cause the down tube to bulge and affect the filling efficiency. If the blockage is unblocked, it will increase Additional workload for online workers

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