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Resin bag production equipment

A technology for manufacturing equipment and resin bags, which is applied in envelope/bag manufacturing machinery, container manufacturing machinery, flexible container manufacturing, etc. It can solve problems such as insufficient sealing strength, wrinkles in the film, and damage to the appearance, so as to prevent poor welding Effect

Active Publication Date: 2013-01-02
MITSUBISHI HEAVY IND MACHINERY SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this manufacturing method causes wrinkles in the film around the welded part of the film and the port, impairing the appearance
In addition, there are also problems in that the film is stretched, the welding cannot be reliably performed, the sealing strength is insufficient, and there is a gap between the film and the port.

Method used

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  • Resin bag production equipment
  • Resin bag production equipment
  • Resin bag production equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention will be described in detail below with reference to the embodiments shown in the drawings.

[0045] The resin bag manufacturing equipment 10 of the present embodiment is equipped with: a main body making part 20, which makes the bag main body 100 (refer to image 3 ); the transport unit 30, which transports the bag body 100 made by the body manufacturing unit 20 to the next process; the port installation unit 40, which installs the bag body 100 supplied from the transport unit 30 by welding the port 200; filling The portion 50 fills the bag body 100 with the port 200 attached to the port attachment portion 40 with contents.

[0046] 〈Main body production department 20〉

[0047] The main body manufacturing part 20 is a part which manufactures the bag main body 100 before the port 200 is attached. The main body manufacturing unit 20 manufactures the bag main body 100 by welding and cutting a resin film pulled out from a rolled reel. The bag body 100...

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Abstract

Disclosed is resin bag production equipment capable of correctly inserting a port at a required position at the opening portion of a bag main body, even if a movement means using a belt drive system having an inferior positioning accuracy is used. The resin bag production equipment (10) is provided with a main body production unit (20) which produces a bag main body (100), a port attachment unit (40) which attaches a port (200) to the bag main body (100) by welding, and a filling unit (50) which fills a content in the bag. The port attachment unit (40) is provided with a port holder (73) which holds the port (200) when the port (200) is inserted to the opening portion (101) of the bag main body (100). The port holder (73) is provided with a hold ring (732) constituted by a combination of a plurality of segments (732a to 732d), and a spiral spring (733) which applies an elastic force to the hold ring (732) in the direction to reduce the diameter.

Description

technical field [0001] The present invention relates to a manufacturing facility of a resin bag used as a container for accommodating a liquid such as an infusion solution. Background technique [0002] A resin bag used as a container for a liquid such as an infusion solution is formed of a soft resin film or the like. The resin bag includes a bag-shaped bag body with one side open, and a cylindrical port made of hard resin attached to the opening of the bag body. The port functions as an opening for allowing liquid to enter and exit the bag body. [0003] Conventionally, in this resin bag, the two films are welded with the port placed between the two tape-shaped films, and at the same time, the port is sandwiched between the two films at the opening In this state, the film is welded to the port (for example, Patent Document 1). However, this manufacturing method causes wrinkles in the film around the welded portion of the film and the port, impairing the appearance. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B1/84B31B19/84B65B57/00B65G21/20B65G47/88
CPCB31B2219/9054B65B3/02B65B61/186B31B19/84B31B70/844B65B3/022B65B51/146
Inventor 荒木洋三三轮三代司清水诚大桥勤田口昌树
Owner MITSUBISHI HEAVY IND MACHINERY SYST LTD
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