Packaging machine for block bottom bags
a technology of block bottom bags and packaging machines, which is applied in the directions of packaging, transportation and packaging, bags, etc., can solve the problems of low production rate and complexity of machinery, and the machine is vulnerable to failur
Inactive Publication Date: 2010-08-12
TNA AUSTRALIA
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- Description
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Benefits of technology
"The patent describes a packaging machine that makes bags from tubular bag material. The machine has a base, a jaw carriage, and a pair of jaws that move in unison to seal the bag material. The machine also has shafts that drive the jaws, and a controller that coordinates the movements of the machine. The machine may also have stripper bars and tube closer bars to help with the packaging process. The technical effects of this patent are a more efficient and precise packaging machine that can make bags quickly and accurately."
Problems solved by technology
These machines that are adapted to form block bottom bags have a number disadvantages including low production rates and complexity of the machinery since the jaws must be vertically and horizontally reciprocated.
This horizontal and vertical reciprocation also makes the machines vulnerable to failure due to the accelerations imposed on the various components.
Method used
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Embodiment Construction
[0036]In FIGS. 1 to 6 of the accompanying drawings there is schematically depicted a rotary packaging machine 10. The machine 10 would receive tubular bag material moving in the direction 11. The tubular bag material would be configured by a former (not illustrated). Product is delivered into the interior of the tubular bag material, and then delivered to the machine 10 to form bags. Typically the machine 10 would also have a film drive assembly that moves the tubular bag material through the machine 10. Typical film drive units are disclosed in U.S. Pat. No. 4,910,943 and U.S. patent application Ser. No. 11 / 178150 (lodged on 8 Jul. 2005). An example of a former assembly is described in U.S. Pat. No. 7,152,387.
[0037]The machine 10 has a base 12 providing a wall 13 that is generally vertically oriented. Mounted for vertical reciprocating movement adjacent the wall 13 is a jaw is carriage 14. The jaw carriage 14 it reciprocates in the direction 15, that is a direction generally parall...
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Abstract
A rotary packaging machine (10) that receives tubular bag material and moves the tubular bag material in a direction (11). Product is delivered to the interior of the tubular bag material with the bag material then being sealed and cut to form bags of the product. The machine (10) has a jaw carriage (14) that is reciprocated while the jaws (29) are rotated.
Description
TECHNICAL FIELD [0001]The present invention relates to packaging machines that form bags and more particularly but not exclusively to packaging machines that form bags to contain a product such as a food product.BACKGROUND OF THE INVENTION[0002]Packaging machines receive a strip of bag forming material and pass the material about a former so that the bag material assumes a tubular configuration. The material is longitudinally sealed, and product delivered to the interior of the tubular bag material through the former. The sealing jaws then engage the tubular bag material to transversely seal and cut the bag material so as to produce bags containing the product.[0003]Described in U.S. Pat. No. 4,663,917 is a packaging machine that can form bags as discussed above. The particular machine of this USA patent has sealing jaws that are rotatably driven through repeated revolutions in opposite angular directions. Operatively associated with the sealing jaws are stripper bars and closer bar...
Claims
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IPC IPC(8): B65B9/12
CPCB29C66/83543B29C66/83513B29C66/4312B29C66/8244B65B9/2056B29C66/8491B29C66/81433B29C65/745B29C66/1122B65D31/08B65B51/306B29C66/8246B29C65/02
Inventor TAYLOR, ALFRED ALEXANDERBRAY, MICHAEL DONFRITZ, ROBERT ERICH
Owner TNA AUSTRALIA