TH23134B - Methods and equipment for the production of flat bottom bags - Google Patents

Abstract

DC60 flat bottom bag or bendable packaging And a method for producing that Created by Modify existing vertical forming and packaging machines This invention involves Produces a flat bottom bag from a single sheet of packaging film by creating two vertical pleats along the sides. The opposite of the tube of the packaging film Before forming, the transverse sealing sections on these crimped tubes are formed by means of fixed or stationary modifications to the forming, filling and sealing machines vertically according to the job shown. already Flat-bottom bags or bendable packaging And a method for producing that Created by Modify existing vertical forming and packaging machines This invention involves Produces a flat bottom bag from a single sheet of packaging film by creating two vertical pleats along the sides. The opposite of the tube of the packaging film Before forming, the transverse sealing sections on these crimped tubes are formed by means of fixed or stationary modifications to the forming, filling and sealing machines vertically according to the job shown. already

Claims (8)

1.Methods for manufacturing flexible packaging This method includes steps of a) loading the packaging film with letters perpendicular to the direction of movement of the packaging film. Such film B) Forming the said packaging film into a pipe in such a vertical forming, filling and sealing machine. C) Forming two vertical crimp marks in tubes of the said packaging film before sealing the tubes horizontally by moving the tubes of the packaging film. Such through generating equipment Stationary crimp d) Forming the first horizontal sealing section on the pipe. Where the horizontal sealing part at One such would include part of the two vertical pleats. By the horizontal sealing part First, all layers of the aforementioned pipe are sealed together; e) releasing the product into partially formed packaging created by steps a to df) forming the sealing part. Second horizontal on such pipes Where the horizontal sealing part at The two will include part of the two vertical pleats. By the horizontal sealing part The second one will seal all the pipes together. So that two vertical creases were raised Figure by step d and step f g) cutting such a segment of the pipe from the remainder of the said pipe at the sealing section in The second such landscape To form a bag with two vertical side flaps along the two opposite sides, and h) set the bag over the pleats so that the lettering is upright. Where the crease The two marks are heat sealed locally at the first and second horizontal seals, where the stand up pouch is formed without any additional folding steps. 2. The method specified in claim 1, where the pleats in step b are formed by the body bars. Create a stationary and adjustable pleat. At least one That is positioned between a pair of forming sheets 3. The method described in Clause 2 where the pleat generator rod will consist of: Fluoropolymers 4. Methods set out in Clause 1, where the forming procedure c will continue to include. Clamping the pipe is tensile, with at least four extenders located under the bottom of the pipe. Images in such vertical forming, filling and sealing machines. Where the extension is applied It is pulled on that pipe from inside, that pipe is pressed outward, and where The vertical crimp is formed by the tension applied to the outside of the pipe by the device located on the outside. With the second one pressed into the inside of the pipe at two points. With each of the two points mentioned It is positioned between at least two of the above four segments. 5. Methods outlined in Clause 4, where the device is pressed inside. The tube consists of a crimp builder rod. 6.The method described in Clause 5 where the pleat generator rod will consist of: Fluoropolymers 7.Methods set out in claim 5, where the apparatus will consist of a gas chamber containing Compressive strength of at least one cavity forming a part of the pleat bar. 8.Methods for manufacturing flexible packaging This method includes steps of a) forming a tube of the packaging film in a vertical forming, filling and sealing machine; b) forming a two vertical crimp in the tube as follows. It is said of the packaging film before sealing it horizontally by moving the tube through the forming device. Stationary crimp c) Forming one of the horizontal sealing sections on the pipe. Where the horizontal sealing part at One of them includes part of the two vertical pleats. D) Forming the second horizontal sealing section on the pipe. Where the horizontal sealing part at The two will include part of the two vertical pleats. To make the two vertical side flap The segments are formed by steps c and steps d and e) cutting such segments of the pipe from the remainder of the pipe at the sealing section in The second such landscape To form a flexible package with two vertical side flaps along the edge. Vertically on two opposite edges Where the pleat in step b will be formed by a minimum stationary pleat bar. One that is positioned between a pair of forming plates. Where the pleated rod consists of one or more gas channels and where The measured ejection of the gas from the cavity is also used during forming step b.