Tubular-bag machine having a gas-adjusting device, and gas-adjusting device for such a tubular-bag machine

Patent metadata

Field	Value
Publication number	US-2016288937-A1
Application number	US-201314442159-A
Country	US
Kind code	A1
Filing date	Nov 4, 2013
Priority date	Nov 14, 2012
Publication date	Oct 6, 2016
Grant date	—

Abstract

The invention specifies an in particular horizontal tubular-bag machine ( 5 ) in which objects ( 2 ) which are provided for packaging are conveyed along a conveying direction ( 6 ) by means of a conveying apparatus ( 51 ). The tubular-bag machine ( 5 ) has an apparatus ( 50, 43 ) for producing from a packaging sheet material ( 12 ) a packaging tube ( 13 ) extending in the conveying direction ( 6 ), and also has a longitudinal-connection device ( 53, 54 ) and a transverse-connection device ( 44 ) for producing longitudinal and transverse connections in the packaging tube ( 13 ). Also provided is a gas-adjusting device ( 8 ) with an introduction head ( 80 ) for engaging in the packaging tube ( 13 ) in a direction transverse to the conveying direction, wherein the introduction head ( 80 ) has a first gas-passage opening ( 802, 804, 805, 807, 808 ) and at least one second gas-passage opening ( 802, 804, 805, 807, 808 ) by way of which a gas is fed into the packaging tube ( 13 ) or removed therefrom.

First claim

1 . A tubular-bag machine ( 5 ) configured to package objects ( 2 ) by means of a packaging sheet material ( 12 ), comprising:
a conveying apparatus ( 51 ) configured to convey objects ( 2 ), which are provided for packaging by means of the tubular-bag machine ( 5 ), along a conveying direction ( 6 ); an apparatus ( 50 , 43 ) configured to produce, from a packaging sheet material ( 12 ), a packaging tube ( 13 ) extending in the conveying direction ( 6 ); a longitudinal-connection device ( 53 , 54 ) configured to produce a longitudinal connection of the packaging tube ( 13 ) along a longitudinal sheet edge region ( 120 ) of the packaging sheet material ( 12 ); a transverse-connection device ( 44 ) configured to produce transverse connections in the packaging sheet material ( 12 ) which extend substantially transversely to the longitudinal connection; and a gas-adjusting device ( 8 ) with an introduction head ( 80 ) configured to engage in the packaging tube ( 13 ) in a direction transverse to the conveying direction, wherein the introduction head ( 80 ) has a first gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) by way of which a gas is fed into the packaging tube ( 13 ) or removed therefrom, and wherein the introduction head ( 80 ) has at least one second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) by way of which a gas is fed into the packaging tube ( 13 ) or removed therefrom.

2 . The tubular-bag machine ( 5 ) according to claim 1 , wherein the introduction head ( 80 ) has a longitudinal direction extending in the conveying direction ( 6 ) and wherein the second gas-passage opening ( 802 , 804 , 805 , 808 ) is disposed downstream of the first gas-passage opening ( 802 , 804 , 805 , 807 ) in the longitudinal direction.

3 . The tubular-bag machine ( 5 ) according to claim 2 , wherein the first gas-passage opening ( 802 ) is configured to evacuate air out of the packaging tube ( 13 ) and wherein the second gas-passage opening ( 804 , 805 , 808 ) is configured to feed gas into the packaging tube ( 13 ).

4 . The tubular-bag machine ( 5 ) according to claim 1 , wherein the introduction head ( 80 ) has a first continuous bearing surface ( 800 ) and a second continuous bearing surface ( 800 ), wherein the first bearing surface ( 800 ) is configured to support a first lateral surface ( 120 ) of the packaging tube ( 13 ) and the second bearing surface ( 800 ) is configured to support a second lateral surface ( 120 ) of the packaging tube ( 13 ) which lies opposite the first lateral surface ( 120 ) and wherein the first gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) and the second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) are disposed between the first and second continuous bearing surfaces ( 800 ).

5 . The tubular-bag machine ( 5 ) according to claim 4 , wherein the introduction head ( 80 ) comprises a main section, within which the first bearing surface ( 800 ) and the second bearing surface ( 800 ) extend substantially parallel to one another and wherein the first gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) and the second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) are disposed in this main section.

6 . The tubular-bag machine ( 5 ) according to claim 4 , wherein the introduction head ( 80 ) has a first wedge-shaped section ( 801 ), within which the first bearing surface ( 800 ) and the second bearing surface ( 800 ) converge in a wedge-shaped manner in a longitudinal direction.

7 . The tubular-bag machine ( 5 ) according to claim 2 , wherein at least one of the first gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) and the second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) is an elongated hole, which has a substantially larger extension in the longitudinal direction of the introduction head ( 80 ) than in a direction perpendicular thereto.

8 . The tubular-bag machine ( 5 ) according to claim 1 , wherein the introduction head ( 80 ) has at least another third gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) in addition to the first and the second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ).

9 . The tubular-bag machine ( 5 ) according to claim 1 , wherein at least one of the first and the second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) is configured to evacuate gas out of the packaging tube ( 13 ) and is delimited by an orifice structure ( 806 ), which is unevenly formed in an opening direction of the first gas-passage opening ( 802 ).

10 . The tubular-bag machine ( 5 ) according to claim 1 , wherein the introduction head ( 80 ) has a continuous, substantially planar orifice surface ( 809 ), within which the first gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) as well as the second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) outwardly discharges.

11 . The tubular-bag machine ( 5 ) according to claim 1 , wherein the introduction head ( 80 ) has at least one sensor configured to measure gas properties in the packaging tube ( 13 ).

12 . The tubular-bag machine ( 5 ) according to claim 1 , wherein the tubular-bag machine ( 5 ) has a control unit ( 96 ) which is designed to optimize at least one of a gas feed quantity and a gas removal quantity flowing through the gas-adjusting device ( 8 ) as a function of at least one of the following: a volume of the packaging; properties of the objects ( 2 ) to be packaged; conveying settings of the conveying apparatus ( 51 ); and values which are measured by sensors on the gas-adjusting device ( 8 ).

13 . A gas-adjusting device ( 8 ) for a tubular-bag machine ( 5 ), said gas adjusting device being configured to adjust a gas content of packagings ( 3 ) which are produced from a packaging tube ( 13 ) by means of a tubular-bag machine ( 5 ), the gas-adjusting device comprising:
an introduction head ( 80 ) configured to laterally engage into the packaging tube ( 13 ), wherein the introduction head ( 80 ) has a first gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) by way of which gas is fed into the packaging tube ( 13 ) or removed therefrom, and wherein the introduction head ( 80 ) has at least one second gas-passage opening ( 802 , 804 , 805 , 807 , 808 ) by way of which gas is fed into the packaging tube ( 13 ) or removed therefrom.

14 . The gas-adjusting device ( 8 ) according to claim 13 , wherein the introduction head ( 80 ) has bearing surfaces ( 800 ) for supporting lateral surfaces ( 120 ) of the packaging tube ( 13 ), wherein the bearing surfaces ( 800 ) extend continuously over approximately an entire length of the introduction head ( 80 ).

15 . A method for adjusting a gas content of packagings ( 3 ) which are produced from a packaging tube ( 13 ), which is conveyed in a conveying direction, by means of a tubular-bag machine ( 5 ), wherein gas is discharged out of the packaging tube ( 13 ) through a lateral opening formed on said packaging tube ( 13 ) and wherein gas is simultaneously introduced into the packaging tube ( 13 ) through the same lateral opening.

16 . The tubular-bag machine ( 5 ) according to claim 6 , wherein the introduction head ( 80 ) has a second wedge-shaped section ( 801 ), within which the first bearing surface ( 800 ) and the second bearing surface ( 800 ) converge in a wedge-shaped manner in a direction which is oriented oppositely to the longitudinal direction.

17 . The tubular-bag machine ( 5 ) according to claim 4 , wherein the introduction head ( 80 ) has a wedge-shaped section ( 801 ), within which the first bearing surface ( 800 ) and the second bea

Assignees

• Bosch Gmbh Robert

Inventors

• Grether Michael
• Weckerle Roland
• Egli Marcel

Classifications

• B65B9/06

  Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it · CPC title

• B65B31/06

  the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth · CPC title

• B65B9/067

  the web advancing continuously (B65B9/08 takes precedence) · CPC title

• B65B9/073

  the web having intermittent motion (B65B9/08 takes precedence) · CPC title

• B65B31/00 Primary

  Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers · CPC title