Method and device for producing and filling packaging means

Patent metadata

Field	Value
Publication number	US-10046878-B2
Application number	US-201113642927-A
Country	US
Kind code	B2
Filing date	Apr 28, 2011
Priority date	Apr 29, 2010
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A method for the production and filling of packaging includes unwinding flattened tubular film material from a roll along a primary axis of symmetry thereof, providing the tubular film material via a welding and separating process with a first lateral welding seam perpendicular relative to the axis, and separating the tubular film material along a separation line to provide a hose section. The hose section open at one side is filled, and the still open other side of the hose section is provided with a second lateral welding seam. Two subsequent separation lines are inserted in the hose section at a distance that is less than the distance between the two edges of the hose.

First claim

What is claimed is:

1. A method of producing and filling packaging, said method comprising:
unwinding a flattened tubular film material having a primary axis of symmetry and two edges parallel relative thereto from a roll along the primary axis of symmetry;
providing the flattened tubular film material with a longitudinal seam and a handle hole at one of the two edges thereof, the longitudinal seam extending parallel to the primary axis of symmetry and connecting a first side of a hose section of the flattened tubular film material to a second side of the hose section of the flattened tubular film material, and the handle hole being located between the longitudinal seam and one of the two edges of the flattened tubular film material;
providing the flattened tubular film material at the second side of the hose section thereof via a welding and separating process with a first lateral welding seam perpendicular relative to the primary axis of symmetry;
providing separating lines at the first and second sides in the flattened tubular film material perpendicular relative to the primary axis of symmetry and separated from each other by a distance that is less than a distance between the two edges thereof;
separating the flattened tubular film material along one of the separating lines so as to produce the individual hose section that is open at the first side thereof;
filling in a filling station via gravity with a material the hose section that is open at the first side thereof, and, with a bag bottom-support device, supporting the second side of the hose section during the filling process, with a contact area of a support surface of the bag bottom-support device having an inclination angle relative to a horizontal plane of transport of the hose section in the filling station, and perpendicular to a transport direction of the hose section, with the longitudinal seam preventing the filled material from escaping through the handle hole; and
to provide a finished, filled sack, providing the open first side of the hose section with a second lateral welding seam extending perpendicular relative to the primary axis of symmetry.

2. The method according to claim 1 , further comprising providing an opening aid in at least one of the two edges of the hose section.

3. The method according to claim 2 , wherein the opening aid is at least partially provided during the step of producing the hose section.

4. The method according to claim 3 , wherein the opening aid includes a resealing closure.

5. The method according to claim 4 , wherein the resealing closure includes a slider.

6. The method according to claim 5 , wherein the slider includes a slider bar and a slider head, and wherein the slider bar is provided during the step of producing the hose section, and the slider head is placed upon the slider bar after the flattened tubular film material has been unwound from the roll.

7. The method according to claim 2 , wherein the opening aid is provided in the hose section via a perforation therein.

8. The method according to claim 1 , wherein the handle hole is provided while the unwound flattened tubular film material is being intermittently conveyed.

9. The method according to claim 1 , further comprising applying two corner welding seams in at least one of the two edges of the flattened tubular film material prior to or after the step of separating the flattened tubular film material into the hose section.

10. An apparatus for the production and filling of packaging from a flattened tubular film material having a primary axis of symmetry and two matching edges, with a distance of the edges from each other representing an operating width, and the apparatus having a maximum operating width, said apparatus comprising:
an unwinding device with which the flattened tubular film material is unwound from a roll along the primary axis of symmetry of the flattened tubular film material;
a device for providing the flattened tubular film material with a longitudinal seam, the longitudinal seam extending parallel to the primary axis of symmetry and connecting a first side of a hose section of the flattened tubular film material to a second side of the hose section of the flattened tubular film material;
a device for providing the flattened tubular film material with a handle hole at one of the two edges thereof, the handle hole being located between the longitudinal seam and one of the two edges of the flattened tubular film material;
a device for providing separating lines at the first and second sides in the flattened tubular film material perpendicular relative to the primary axis of symmetry and separating the flattened tubular film material along one of the separating lines so as to provide the hose section;
a device for providing a first lateral welding seam in the flattened tubular film material at the second side thereof, the first lateral welding seam extending perpendicular relative to the primary axis of symmetry;
a filling station with which the hose section, open at the first side thereof, is filled via gravity with a material, with the hose section being held by stationary graspers;
a bag bottom-support device with which the second side of the hose section is supported during the filling process,
the bag bottom-support device being adjustable such that a distance between a support surface of the bag bottom-support device and the stationary graspers relative to each other in a vertical direction is less than or equivalent to the maximum operating width of the apparatus,
with a contact area of the support surface of the bag bottom-support device having an inclination angle relative to a horizontal plane of transport of the hose section in the filling station, and perpendicular to a transport direction of the hose section, and with the longitudinal seam preventing the filled material from escaping through the handle hole; and
a device for sealing the open first side of the filled hose section by providing a second lateral welding seam in the hose section extending perpendicular relative to the primary axis of symmetry.

11. The apparatus according to claim 10 , further comprising at least one of a corner welding device with which only one of the two edges of at least one of the flattened tubular film material and the hose section is processed.

12. The apparatus according to claim 10 , further comprising a corner welding device with which both of the edges of at least one of the flattened tubular film material and the hose section is processed, with the corner welding device being switchable between processing one of the edges and processing both of the edges.

13. The apparatus according to claim 10 , further comprising a filling nozzle, with a line of symmetry of the filling nozzle of the filling station being off-set relative to the primary axis of symmetry of the hose section in the filling station, or with a relative position of the line of symmetry of the filling nozzle being off-set relative to the primary axis of symmetry of the hose section.

14. An apparatus for the production and filling of packaging from a flattened tubular film material having a primary axis of symmetry and two matching edges, with a distance of the edges from each other representing an operating width, and the apparatus having a maximum operating width, said apparatus comprising:
an unwinding device with which the flattened tubular film material is unwound from a roll along the primary axis of symmetry of the flattened tubular film material;
a device for providing the flattened tubular film material with a longitudinal seam extending parallel to the primary axis of symmetry

Assignees

• Knoke Thomas
• Grosse Heitmeyer Ruediger
• Hawighorst Thomas
• Windmoeller & Hoelscher

Inventors

• Knoke Thomas
• Grosse-Heitmeyer Ruediger
• Hawighorst Thomas

Classifications

• B65B61/14 Primary

  for incorporating, or forming and incorporating, handles or suspension means in packages (attaching, or forming and attaching, string handles or tags to tea-bags B65B29/04) · CPC title

• B65B9/13

  the preformed tubular webs being supplied in a flattened state · CPC title

• B31B70/942

  by winding up · CPC title

• B65B61/28

  for discharging completed packages from machines · CPC title

• B31B70/872

  Forming integral handles on bags · CPC title