Method for producing bags

Abstract

The invention relates to a method for the producing bags ( 10 ), comprising the following steps: a tubular material ( 100 ) comprising a coating material ( 110 ) and at least one reinforcement material ( 120 ) for mechanically reinforcing the coating material ( 110 ) is provided and a base section ( 20 ) of a bag ( 10 ) is formed. The invention is characterized in that a folding section ( 102 ) of the tubular material ( 100 ) is folded about at least 180° on a connecting section ( 104 ) of the tubular material ( 100 ) for forming the base section ( 20 ), and the folded folding section ( 102 ) is connected to the connecting section ( 104 ).

1 . Method for producing bags comprising the following:
 providing of a tubular material comprising a coating material at the outside of the tubular material and at least an reinforcing material in form of a tissue structure for the mechanic reinforcement of the coating material,   establishing of a base section of a bag,   
       wherein, 
       for the establishment of the base section
 a folding section of the tubular material is turned on a connecting section of the tubular material about at least 180°, and 
 the outside of the turned folding section is connected to the outside of the connecting section, wherein the coating material is exclusively connected to itself, 
 wherein the following steps are performed additionally: 
 cutting of the tubular material to the desired length of the bag, 
 filling of the bag after establishing the base section with packaging items, 
 establishing of a sealing section for sealing the bag after filling the bag. 
 
     
     
         2 . Method according to  claim 1 ,
 wherein the folding section is at least turned twice.   
     
     
         3 . Method according to  claim 2 ,
 wherein the folding section is at least sectionally turned about at least 360°.   
     
     
         4 . Method according to  claim 1 ,
 wherein the connection of the turned folding section with the connecting section is produced by at least one of the following method steps:   hot air fan   sealing   sewing   gluing.   
     
     
         5 . Method according to  claim 1 ,
 wherein for the connection of the turned folding section with the connecting section a connecting material is used at least sectionally.   
     
     
         6 . Method according to  claim 1 ,
 wherein the turning of the folding section occurs about a folding axis, which is adjusted transverse or mainly transverse to a longitudinal direction of the tubular material.   
     
     
         7 . Method according to  claim 6 ,
 wherein the connection between the turned folding section and the connecting section occurs only sectionally over the entire extension of the tubular material and in direction of the folding axis.   
     
     
         8 . Method according to  claim 1 ,
 wherein the turned folding section is connected with the connecting section via at least a connecting element.   
     
     
         9 . (canceled) 
     
     
         10 . Method according to  claim 8 ,
 wherein the bag is picked from a transport device after configuration of the base section and before cutting the tubular material.   
     
     
         11 . Method according to  claim 10 ,
 wherein after cutting of the tubular material the bag is transported to a filling device by the transporting device and is filled with packaging items at the filling device.   
     
     
         12 . Production device for the production of bags from tubular material comprising a coating material at the outside of the tubular material and at least an reinforcement material in form of a tissue structure for a reinforcement of the coating material, wherein the production device comprises a base device for the configuration of a base section,
 wherein the base device is configured for a turning of a folding section of the tubular material to a connecting section of the tubular material about at least 180° and a connection of the outside of the turned folding section ( 102 ) with the outside of the connecting section ( 104 ), wherein the coating material is exclusively connected to itself, wherein the production device is configured for the performance of a method with the features of  claim 1  to  8 .   
     
     
         13 . (canceled) 
     
     
         14 . Production device according to  claim 11 ,
 wherein the base device comprises a tongs device for turning the folding section.   
     
     
         15 . Production device according to  claim 11 ,
 wherein the base device comprises a guide device.   
     
     
         16 . Production device according to  claim 11 , wherein at least the tubular material or the bag is conveyed by transport elements, which work reversing or circulating. 
     
     
         17 . Production device according to  claim 11 ,
 wherein subsequent to the base device at least one transport device is assembled, which is configured for picking and transporting the bag subsequent to the configuration of the base section.   
     
     
         18 . Production device according to  claim 11 ,
 wherein at least a cutting device is assembled for cutting the tubular material subsequent to the configuration of the base section.   
     
     
         19 . Production device according to  claim 15 ,
 wherein at least subsequent to the cutting device or to the transport device a filling device is assembled for filling the bag with packing items.   
     
     
         20 . Bag from tubular material comprising a coating material at the outside of the tubular material and at least a reinforcement material in form of a tissue structure for the reinforcement of the coating material with a base section and a sealing section, which seals the interior of the bag,
 wherein at least the base section or the sealing section comprise at least a folding section of the tubular material, which is turned on a connecting section of the tubular material about at least 180° and the outside of the folding section is connected with the outside of this connection section wherein the coating material is exclusively connected to itself,   wherein packaging items are assembled in the interior of the bag and the bag is produced by a production device, at least with an action selected from a group consisting of:   cutting of the tubular material to the desired length of the bag,   filling of the bag after establishing the base section with packaging items,   
       establishing of a sealing section for sealing the bag after filling the bag, and after cutting of the tubular material the bag is transported to a filling device by the transporting device and is filled with packaging items at the filling device. 
     
     
         21 - 22 . (canceled) 
     
     
         23 . Method according to  claim 1 , wherein the sealing section is configured in the same manner or mainly in the same manner like the base section. 
     
     
         24 . Method according to  claim 2 , wherein the folding section is at least partially turned on itself. 
     
     
         25 . Method according to  claim 5 , for the connection of the turned folding section with the connecting section a connecting material is used at least sectionally towards a conveying direction of the tubular material.