Sealing device for main shaft head of needling machine

Abstract

The invention discloses a sealing device for a main shaft head of a needling machine. The needling machine comprises a transmission box and a main shaft, the transmission box is fixed to the upper portion of a machine frame and provided with a box cover, the left end of the main shaft is supported on the inner side of the left wall of the transmission box, the right end of the main shaft is supported on the inner side of the right wall of the transmission box, the right end portion of the main shaft extends out of a right supporting shaft bearing of the main shaft and stretches to the outer portion of the transmission box, the right end of the main shaft is fixed to a driven synchronous pulley, the sealing device for the main shaft head comprises a sealing disk and a sealing ring, the sealing disk is fixed to the right side of the right wall of the transmission box and the right side of an end board of the box cover, the left side of the sealing disk is provided with a sealing disk boss, a sealing ring matching cavity is formed in the center position of the sealing disk boss, the sealing ring is arranged in the sealing ring matching cavity, a center hole of the sealing ring is arranged on the right end portion of the main shaft in a sleeving mode, and the driven synchronous pulley is fixed to the right end portion of the main shaft. By means of the sealing device, it is prevented that external fibers or dust or debris affects the right supporting shaft bearing of the main shaft, and it is prevented that lubricating oil used for bearing lubrication in the right supporting shaft bearing of the main shaft seeps outward along the main shaft head of the main shaft.

Description

technical field [0001] The invention belongs to the technical field of acupuncture machines, and in particular relates to a sealing device for a spindle head of an acupuncture machine. Background technique [0002] After the applicant's exploration, because the reasonable improvement of the structure of the needle loom and supplemented by a reasonable process can meet the embroidery requirements for fabrics, the needle loom can also be called an embossing machine in essence. There is no lack of technical information about acupuncture machines in the published Chinese patent documents, such as CN101492861B (automatic multifunctional acupuncture machine), CN102373579B (endless acupuncture machine), CN102677397B (double-axis acupuncture machine with improved structure), CN102677398A ( Double-axis acupuncture machine), CN102808290B (drum-type acupuncture machine), CN106087258A (double-faced acupuncture machine), CN105734836A (a low-noise acupuncture machine), CN106087259A (a hig...

AI Technical Summary

Problems solved by technology

Since the cavity wall of the aforementioned spindle relief cavity needs to maintain a sufficient gap with the spindle head to avoid contact friction between the spindle and the cavity wall of the spindle relief cavity, the fiber dust from the outside can easily pass from the spindle relief cavity and The gap between the spindle heads enters the transmission box and invades the spindle bearing seat used to support the spindle, seriously affecting the reasonable service life of the spindle bearing seat

At the same time, the lubricating oil in the main shaft bearing seat for bearing lubrication will spread outward along the main shaft head and drip and dirty the aforementioned fabrics.

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