JPS625862U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal side view of the glue discharging gun, Figs. 2 and 3 are longitudinal sectional front views and plan views of the gluing machine, and Fig. 4 is an exploded view of the gland packing part. A perspective view, FIG. 5 is a longitudinal sectional side view of a main part showing a modification of the valve body portion, and FIG. 6 is a schematic front view of another embodiment. 5... Gluing machine, 11... Glue discharge gun, 14...
Valve drive device, 16...Gun body, 17...Gland packing holding chamber, 18...Gland packing housing chamber, 19...Valve shaft passage hole, 20...Glue inlet chamber, 21...Gland packing housing chamber, 22...Gland packing hole, 23...Gland packing, 23a...Inner cylinder part, 23b...Outer cylinder part, 24...Valve seat, 25...Valve body, 26...Valve stem,
32...Gland packing presser, 33...Tapered surface, 34...Glue outlet chamber, 36...Glue discharge nozzle.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In the gun body 16 of the glue discharging gun 11 of the glue applicator 5, from top to bottom, there are, in order from top to bottom, a gland packing holding hole 17, a gland packing housing chamber 18, and a valve shaft passage hole 19. , the glue inlet chamber 20, the valve seat accommodating chamber 21, and the valve seat holding hole 22 are formed by communicating with each other, and the valve seat 24 is inserted into the valve seat accommodating chamber 21, and the valve seat holding hole 22 is inserted into the valve seat holding hole 22. 32 is fitted with screws to press and fix the valve seat 24 to the valve seat housing chamber 21, a glue outlet chamber 34 is formed in the valve seat holder 32, and a glue discharge nozzle 36 is connected to the glue outlet chamber 34 in communication. , glue entrance chamber 20
A valve body 25 is inserted into one of the glue outlet chamber 34 and the valve seat 24 so as to be able to open and close up and down, and the valve stem 26 extending upward from the valve body 25 is inserted into the glue inlet chamber 20 and the valve stem insertion hole 19. , through the gland packing housing chamber 21 and the gland packing holding hole 22 to protrude above the gun body 16, and the gland packing housing chamber 2
Insert the gland packing 24 into 1,
A gland packing holder 32 is screwed into the gland packing holding hole 22, and the gland packing 24 is sealed in contact with the gland packing housing chamber 21 and the valve shaft 26 using the gland packing holder 32, and placed on the upper part of the gun body 16. The upper end of the valve shaft 26 is connected to the output shaft 29 of the valve drive device 14 that has been
In the glue discharging gun of the gluing machine, the valve seat holder 32 is made of polyoxymethylene resin, and the valve body 25 and valve stem 26 are made of metal, and the entire surface of the metal valve body 25 and the valve stem are made of metal. A gluing machine characterized in that the entire surface of at least the lower part of the gland packing 26 below the part in sliding contact with the gland packing 23 is coated with a fluorine-based resin, and the valve seat 24 and the gland packing 23 are made of the fluorine-based resin. Glue dispensing gun. 2. Connect the gland packing 23 to the inner cylinder portion 23a.
A glue discharging gun for a glue applicator according to claim 1, which has a structure in which the outer cylinder portion 23b and the outer cylinder portion 23b fit together at tapered surfaces 33, 33.