Bag filling and packaging method and bag filling and packaging apparatus

Inactive Publication Date: 2007-09-06
TOYO JIDOKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015]Accordingly, the object of the present invention is to solve the above-described problems with the conventional art conventional art, and the present invention provides a bag filling and packaging met

Problems solved by technology

However, depending on the types of bags, some have bag surfaces that are warped or distorted (such warping or distortion often occurring in spout-equipped bags and zipper-equipped bags).
When such bags are used in packaging, problems would arise.
Since the amount of parts gripped by grippers (a width of a bag edge that is gripped) is small, it is difficult to sufficiently tension the bag mouth when, for instance, sealing the bag (the bag mouth will not be sufficiently ten

Method used

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  • Bag filling and packaging method and bag filling and packaging apparatus
  • Bag filling and packaging method and bag filling and packaging apparatus
  • Bag filling and packaging method and bag filling and packaging apparatus

Examples

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first embodiment

[0063]First, the packaging method and packaging apparatus that maintains the amount of part gripped by a gripper pair at bag side edges constant for all bags will be described.

[0064]Overall Configuration of Rotary Type Bag Filling and Packaging Apparatus

[0065]In the rotary type bag filling and packaging apparatus shown in FIG. 1, a plurality of pairs of grippers 2 and 3 (only the chucks 5 and 5 thereof being shown in FIG. 1) for gripping the left and right side edges of each one of the bags 9 and suspending such bags are provided at equal distance along the circumference of a table 1 that intermittently or continuously rotates (in the rotating direction being shown by arrow).

[0066]At the various process positions A to J along the circumference of the table 1, various devices are provided. A conveyor magazine type bag feeder 11 is provided at position A, a printer (not shown) is provided at position B, a bag mouth opening device (only a pair of suction plates 12 thereof being shown) ...

second embodiment

[0100]Next, in the bag filling and packaging method and packaging apparatus according to the present invention, a packaging method and packaging apparatus in which when the bag mouth of a bag gripped by a gripper pair is tensioned by widening the gripper distance for the gripper pair, such tension is kept constant for (or applicable to) any and all bags will be described.

[0101]Distance Setting and Distance Adjusting Mechanism

[0102]As shown in FIG. 8, in a predetermined position in the circumferential direction of the gripper distance setting cam 28, a gripper distance adjustment auxiliary cam 41 is provided so as to be movable up and down in a configuration similar to the gripper distance adjustment auxiliary cam 29 in FIGS. 5 and 6. The position where the gripper distance adjustment auxiliary cam 41 is provided, however, differs from that of the gripper distance adjustment auxiliary cam 29. The drive mechanism for moving the gripper distance adjustment auxiliary cam 41 up and down ...

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Abstract

A bag filling and packaging system including gripper pairs around a rotating table so that the grippers of each gripper pair grip two side edges of a bag on which various packaging processes are performed. A gripper distance adjustment auxiliary cam is provided to ascend and descend relative to a gripper distance setting cam for setting distance between grippers. A roller rolls on the two cams as the table rotates, and the distance between the grippers changes in response to the height of the roller by a transmission mechanism. An apparent bag width is measured prior to gripping a bag, the height of the gripper distance adjustment auxiliary cam is controlled according to this measured value, and the distance between grippers in a bag supply process is adjusted accordingly, the amount of part gripped by the grippers at side edges of a bag thus being constant for all bags.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a bag filling and packaging apparatus including a plurality of gripper pairs, which are provided at equal distance about a carrying member (table or chain) that rotates continuously or intermittently along a circular path, for gripping both (left and right) side edges of a bag, wherein bags are supplied to the gripper pairs while the carrying member makes one revolution, and the bags gripped by the gripper pairs are sequentially subjected to such packaging processes as bag mouth opening, contents charging, and bag mouth sealing.[0003]2. Description of the Related Art[0004]A typical bag filling and packaging apparatus includes a table that has a plurality of gripper pairs provided about the circumference and rotates intermittently; and in this bag filling and packaging apparatus, various packaging processes are sequentially performed at various stop positions. Such processes include suppl...

Claims

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Application Information

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IPC IPC(8): B65B43/26
CPCB65B59/02B65B43/465B65B43/60B65B43/50B65B43/22B65B43/30B65B1/06B65B3/06B65B59/003
Inventor OKAZAKI, HIROYUKI
Owner TOYO JIDOKI CO LTD
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