Filling structure

Abstract

A filling structure comprises a membrane valve (13) provided with a metal membrane, an adapting joint (4) which can be rapidly disassembled, an ejector rod (3), a driving shaft (5), an installation plate (6), a fixing base (1) and a fixed joint (2). The membrane valve (13) is detachably connected to the adapting joint (4) fixedly; the adapting joint (4) is detachably connected with the fixed joint (2); the ejector rod (3) is arranged inside the adapting joint (4) and the fixed joint (2); the end portion of the driving shaft (5) is inserted into the fixed joint (2) to be connected with the ejector rod (3). The driving shaft (5) is driven by a driving mechanism to drive the ejector rod (3) to move forwards and backwards. After the ejector rod (3) forwards moves to be in place, the end portion of the ejector rod (3) abuts against the metal membrane of the membrane valve (13) to enable the membrane valve (13) to be closed. When the ejector rod (3) moves backwards, the metal membrane of the membrane valve (13) resets under the effect of the elasticity of the metal membrane to enable the membrane valve (13) to be opened. The filling structure is simple in structure, convenient to disassemble and assemble, high in filling accuracy and capable of achieving compatibility of SOP / SIP, any device is not required to be replaced as for the dosage from 0.1 ml to 20 ml, and complete partition between a filling area and a driving part is completely achieved.

Description

technical field [0001] The invention relates to a filling structure used in a filling linkage line, belonging to the field of packaging equipment for food, medicine and cosmetics. Background technique [0002] In the existing filling structure, three filling methods are generally adopted: plunger filling, peristaltic pump filling, and time pressure filling. For example, the application number is CN200720110152, and the Chinese patent titled "Plunger Type Quantitative Filling Device" discloses a device that adopts plunger type filling, including a stepping motor fixed in the frame and driven by the stepping motor. The mechanism drives the rotating turntable. The turntable is equipped with an adjustable bottom block. The bottom block is connected to the plunger. The rotation of the turntable drives the plunger to make a reciprocating linear motion. Pipe and discharge pipe, the discharge pipe is connected to the injection nozzle, the filling material enters the inner chamber o...

AI Technical Summary

Problems solved by technology

[0005] The above three filling methods all have disadvantages. Among them, the plunger filling cannot realize cleaning in place (SIP for short in English); while the peristaltic pump filling is costly and difficult when used for multi-head filling. Large; the time pressure filling method has low accuracy for small-dose filling, and its filling structure cannot realize the compatibility of off-line cleaning (SOP in English) and cleaning in place.

At the same time, these filling methods all have a limitation on the filling volume, which can only be adapted to a small range of filling. If it exceeds a certain range, the relevant equipment needs to be replaced.

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