A sealing device for a soft bag infusion production line and a soft bag infusion production line

Abstract

The invention discloses a sealing device for a soft bag infusion production line. The sealing device comprises cover-taking and sealing caps, left rotary arms and right rotary arms, wherein the left rotary arms and the right rotary arms are fixedly connected with the cover-taking and sealing caps by pin shafts and composite bearings; the top of each of the left rotary arms and the right rotary arms is in an inverted trapezoid shape; small supporting shafts and composite idler wheels, which can move up and down along outer side arms of the left rotary arms and the right rotary arms, are arranged at the tops of the left rotary arms and the right rotary arms; a compressed spring is mounted on each top inverted trapezoid structure and between each left rotary arm and the corresponding right rotary arm. The invention further provides the soft bag infusion production line which is provided with the sealing device and can be used for realizing the requirements of simultaneously carrying out cover welding and sealing on two or more connectors on the same infusion soft bag.

Description

technical field [0001] The invention relates to the technical field of medical packaging, and more specifically relates to a sealing device for a soft bag transfusion production line and a soft bag transfusion production line. Background technique [0002] The sealing device is an important part of the soft bag infusion production line, and its function is to seal the sealing cover to the interface of the filled infusion soft bag to achieve the purpose of sealing. [0003] In the prior art, the sealing device usually mainly includes two vertically connected cylinders, a linear guide rail pair, a cap suction head, a rotating arm, a lance, and a tension spring. , move the cap suction head connected to the output piston rod of the terminal cylinder vertically downward under the guidance of the linear guide pair to pick up and absorb the sealing cap. The lances on both sides open the rotating arm, and the cap suction head with the sealing cap finally moves down to directly abov...

AI Technical Summary

Problems solved by technology

[0004] With the innovation and progress of technology, as well as the requirements of clinical application, relatively new infusion soft bags with T-shaped interface, boat-shaped conjoined double hard tube interface and independent boat-shaped double hard interface have appeared on the market in recent years. When the bag is sealed with a sealing cap, at least two sealing caps need to be sealed and connected at the same time. The two sealing caps are arranged in a straight line and the distance between them is very small, and the above-mentioned sealing device needs to open the rotating arm when it is working. In order to take the cover and seal smoothly, it is necessary to reserve enough space for movement. However, the layout of the components of the traditional sealing device is relatively scattered, resulting in a large space occupied by the entire sealing device, and it is impossible to use multiple or the same sealing device to seal multiple sealing caps at the same time. Connected to multiple T-shaped ports, multiple independent hard tube ports or the same boat-shaped conjoined double hard tube port infusion soft bag

It is even more impossible to use the same set of sealing device to seal a single interface infusion soft bag and to seal multiple interface infusion soft bags

[0005] In addition, when the existing sealing device is working, the lance needs to drive the opening and closing of the rotating arm, thereby controlling the position of the sealing cover, and the opening time of the rotating arm should correspond to the time when the suction head sucks the sealing cover, but in specific During the working process, there is often a deviation between the opening time of the rotating arm and the time when the suction head sucks the sealing cap, resulting in the phenomenon that the cap is dropped or the suction head is stuck by the rotating arm, and the movement is not in place, so that the work cannot be completed smoothly; After the rotation occurs, the tension spring needs to exert force on it to return the pivot arm to its original position, and the tension spring is prone to fatigue damage after a period of use, thus affecting the normal operation of the pivot arm, and the tension spring is in use During the process, it will also be baked at a high temperature intermittently by the heating plate used to heat the sealing cover, which greatly shortens its life; due to the process requirements for the sealing device, the working accuracy is high, and the existing sealing device moves, The frequency of rotation error is high, and it needs to be adjusted frequently. Moreover, the structure of this sealing device is complicated, and the layout of parts is scattered, which brings great inconvenience to maintenance and adjustment, and seriously restricts the production efficiency of the sealing device.

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