Method and apparatus for manufacturing package of extraction bag

Abstract

A method for manufacturing a package in which an extraction bag having four triangular surfaces is stored in an exterior bag includes: a direction regulation step of regulating a direction of the extraction bag to be a specified direction; a pressing step of pressing the extraction bag so that one surface or one side of the extraction bag is folded into two; a folding step of folding the extraction bag by surface-pressing of the extraction bag from both sides of surfaces that are overlapped upon being folded into two; and a packaging step of forming a package in which the folded extraction bag is stored in the exterior bag. According to the method, when a trigonal-pyramid pack is packaged with an exterior bag, the trigonal-pyramid pack can be closed in the exterior bag in the state of being folded flat in a fixed form.

1 . A method for manufacturing a package in which an extraction bag having four triangular surfaces is stored in an exterior bag, the method comprising:
 a direction regulation step of regulating a direction of the extraction bag to be a specified direction;   a pressing step of pressing the extraction bag so that one surface or one side of the extraction bag is folded into two;   a folding step of folding the extraction bag by surface-pressing of the extraction bag from both sides of surfaces which are overlapped upon being folded into two; and   a packaging step of forming a package in which the folded extraction bag is stored in the exterior bag.   
     
     
         2 . The method for manufacturing a package according to  claim 1 , wherein:
 the extraction bag is an extraction bag with a thread tag in which a tag joined to a hanging thread is attached to a triangular surface; and   in the direction regulation step, the direction of the extraction bag is regulated to be a direction in which the triangular surface with the tag attached thereto is not folded in the folding step.   
     
     
         3 . The method for manufacturing a package according to  claim 1 , wherein the extraction bag is received in a holding device provided with, in a bottom thereof, a placement section to which one triangular surface of the extraction bag is fitted, and in the direction regulation step, oscillation is provided to the extraction bag within the holding device so that the triangular surface of the extraction bag is fitted to the placement section, thereby regulating the direction of the extraction bag. 
     
     
         4 . The method for manufacturing a package according to  claim 3 , wherein the extraction bag is an extraction bag with a thread tag in which a tag joined to a hanging thread is attached to a triangular surface, and
 the direction of the placement section is regulated in the direction regulation step so that the surface to which the tag is attached faces the side folded into two in the folding step.   
     
     
         5 . The method for manufacturing a package according to  claim 1 , wherein in the direction regulation step the direction of the extraction bag is regulated so that one side of the extraction bag makes the lowermost end and extends in a conveying direction of the extraction bag, and in the pressing step an upper end side of the extraction bag is folded into two. 
     
     
         6 . An apparatus for manufacturing a package in which an extraction bag having four triangular surfaces is stored in an exterior bag, the apparatus comprising:
 a direction regulation device for regulating a direction of the extraction bag to be a specified direction;   a pressing device for pressing the extraction bag so that one surface or one side of the extraction bag is folded into two;   a folding device for performing surface-pressing of the extraction bag from both sides of surfaces that are overlapped upon being folded into two so as to fold the extraction bag flat; and   a package forming device for packaging the folded extraction bag with an outer packaging film so as to form a package in which the extraction bag is stored in the exterior bag formed of the outer packaging film.   
     
     
         7 . The manufacturing apparatus according to  claim 6 , comprising delivery means for holding the extraction bag folded flat to take out of the folding device and delivering the extraction bag to the package forming device. 
     
     
         8 . The apparatus for manufacturing a package according to  claim 6 , wherein the extraction bag is an extraction bag with a thread tag in which a tag joined to a hanging thread is attached to a triangular surface, and
 the direction regulation device regulates the direction of the extraction bag to be a direction in which the triangular surface to which the tag is attached is not pressed inside by the pressing device.   
     
     
         9 . The apparatus for manufacturing a package according to  claim 6 , wherein the direction regulation device includes a holding device provided with a placement section to which one triangular surface of the extraction bag is fitted, and regulates the direction of the extraction bag so that the triangular surface of the extraction bag is fitted to the placement section by applying oscillation to the extraction bag fed within the holding device. 
     
     
         10 . The apparatus for manufacturing a package according to  claim 9 , wherein the extraction bag is an extraction bag with a thread tag in which a tag joined to a hanging thread is attached to a triangular surface, and
 the direction regulation device regulates the direction of the placement section so that the surface to which the tag is attached faces the side folded into two in the pressing device.   
     
     
         11 . The apparatus for manufacturing a package according to  claim 6 , wherein the direction regulation device holds the extraction bag so that one side of the extraction bag makes the lowermost end and extends in a conveying direction of the extraction bag, and the pressing device folds an upper end side of the extraction bag into two.