Full-automatic rubber injection gun

Abstract

The invention discloses a full-automatic rubber injection gun. The rubber injection gun is characterized in that a cylindrical push rod penetrates through a through hole; a propelling disc sliding along a rubber tube bracket is fixedly installed on the front of the push rod; a fixed handlebar is arranged at the lower part of the rear end of a support frame; a row of plane indentions arranged from front to rear are arranged on the surface of the push rod; a drive gear which is driven by a positive and negative rotation motor and is meshed with the plane indentions on the push rod is connected in the fixed handlebar in a rotary manner; an electric button for controlling rotation of the positive and negative rotation motor is installed on the fixed handlebar; a guide frame is installed on the support frame; the rear of the guide frame is connected on the support frame via a hinge axis; a rear idler wheel pressing against the top of the push rod is installed on the hinge axis; the front of the guide frame penetrates through the rear end of the rubber tube bracket and is connected with a front idler wheel pressing against the push rod in a rotary manner; the front of the support frame or the rubber tube bracket is connected with a height limiting device for limiting the front height of the guide frame. The full-automatic rubber injection gun has a simple structure and has the advantages that the full-automatic rubber injection gun saves effort during pushing and can effectively prevent the push rod from tilting.

Description

technical field [0001] The invention relates to a fully automatic glue injection gun used for extruding the sealant in a rubber hose. Background technique [0002] In the construction of door and window sealants, a fully automatic glue gun is used to squeeze the rubber hose for glue injection. Existing fully automatic glue injection guns include a rubber hose bracket and a support frame that are fixed together. A push rod is slidably connected to the rubber hose bracket and the support frame. The push rod is driven by a handle connected to the support frame. The connection is realized by the following structure, that is, a through hole is correspondingly opened at the rear end of the hose bracket and the support frame, and the push rod moves and slides in the through hole. When the handle drives the push rod forward, the top of the push rod will lean against the through hole. There is translational friction on the top wall of the hole, so the push is laborious. When pushing...

AI Technical Summary

Problems solved by technology

Existing fully automatic glue injection guns include a rubber hose bracket and a support frame that are fixed together. A push rod is slidably connected to the rubber hose bracket and the support frame. The push rod is driven by a handle connected to the support frame. The connection is realized by the following structure, that is, a through hole is correspondingly opened at the rear end of the rubber hose bracket and the support frame, and the push rod moves and slides in the through hole. When the handle drives the push rod forward, the top of the push rod will lean against the through hole. There is translational friction on the top wall of the hole, so the push is laborious. When pushing the push rod hard in order to increase the extrusion speed and force, the push rod will often rise up and even cause deformation, which increases the extrusion resistance and makes extrusion difficult. It is very laborious to inject the glue, which affects the work efficiency and the service life of the automatic glue injection gun

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