Machine and Packaging Manufactured Therewith

Abstract

A machine for manufacturing packaging with two sealed cross seams and at least one sealed longitudinal seam consisting of at least one heat sealable packing material sheet includes at least one cross seam sealing device; at least one longitudinal seam sealing device; at least one cross cutting device; and at least one longitudinal cutting device.

Claims

1. A machine for manufacturing packaging with two sealed cross seams and at least one sealed longitudinal seam consisting of at least one heat sealable packing material sheet, comprising: at least one cross seam sealing device, at least one longitudinal seam sealing device; at least one cross cutting device; and at least one longitudinal cutting device, wherein one of the at least one longitudinal cutting device is allocated to each of the at least one longitudinal seam sealing device, and wherein the at least one longitudinal cutting device has a circular blade (1) with an undulating cutting edge (2) to generate at least one longitudinally running edge of the packaging allocated to the at least one sealed longitudinal seam that is undulating in design over its entire length.

2. The machine according to claim 1, wherein the circular blades of several longitudinal cutting devices are mounted on one common shaft (3).

3. The machine according to claim 1, wherein the circular blades of all of the longitudinal cutting devices are mounted on one common shaft (3).

4. The machine according to claim 1, wherein each longitudinal cutting device comprises a blade holder (4), wherein the blade holder (4) is securable to a respective traverse (5).

5. The machine according to claim 4, wherein each blade holder (4) is displaceable along the traverse (5).

6. The machine according to claim 4, wherein the blade (1) held by the secured blade holder is adjustable parallel to the traverse (5).

7. The machine according to claim 1, wherein the blade (1) is configured to form a perforated cut.

8. A packaging, comprising: two sealed cross seams and two sealed longitudinal seams consisting of at least one heat sealable packing material sheet, wherein the two cross edges have an undulating shape, and wherein two longitudinally running longitudinal edges allocated to the two sealed longitudinal seams have an undulating shape.

9. Use of a blade in a machine, wherein the blade is a circular blade and has an undulating cutting edge (2) and is used to manufacture a longitudinal edge of a packaging that is allocated to a sealed longitudinal seam of the packaging.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The invention along with the technical environment will be explained below based upon the figures. In the figures:

[0024] FIG. 1 shows a first embodiment of longitudinal cutting devices of a (tubular bag) machine;

[0025] FIG. 2 shows a second embodiment of longitudinal cutting devices of a (tubular bag) machine;

[0026] FIG. 3 shows a side view of the longitudinal cutting device according to FIG. 2; and

[0027] FIG. 4 shows a zigzag section with perforation.

DETAILED DESCRIPTION OF THE EXAMPLE EMBODIMENTS

[0028] Tubular bag machines as such are known from prior art, so that only the longitudinal cutting devices will be discussed below.

[0029] FIG. 1 shows a shaft 3, upon which are mounted several blades 1 designed as circular blades, wherein the blades 1 have a wavelike cutting edge 2. The shaft 3 can either be actively driven, so that the blades 1 are driven into a rotation. Alternatively, however, it could also be provided that the blades 1 are pressed onto a packing material sheet (already having the sealed longitudinal seam(s) produced by the respective longitudinal seam sealing device) with the shaft 3, and that the shaft 3 be driven into rotation by the linearly moving packing material strip.

[0030] Each blade 1 generates a wavelike cut 7 to produce a wavelike longitudinal edge of a packaging.

[0031] According to the embodiment on FIGS. 2 and 3, each longitudinal cutting device has a blade holder 4, which carries a respective blade 1, likewise designed as a circular blade and having a wavelike cutting edge 2, so that each blade 1 generates a wavelike cut 7 to produce a wavelike longitudinal edge of a packaging. Each blade holder 4 has a dial 6, which can be used to adjust the respective blade 1 parallel to a traverse 5. In the detached state of a fastening device 8, the blade holders 4 can also be moved along the traverse 5, so that the distance between the blades 1 can be easily changed even by a large distance. In particular, the blade holders 4 have an actuator, with which the respective blade 1 can be delivered to the packing material sheet.

[0032] FIG. 4 shows a zigzag cut 7, which is also perforated. To this end, the cutting edge 2 of the blade 1 can be zigzagged in design transverse to the circumferential direction, while the cutting edge 2 has recesses in the radial direction of the blade, based on which the perforation is generated. In this way, parallel packaging strips can be produced, which can be separated along the perforated cut, so that the manually separated pouch packaging also has a zigzag longitudinal edge.

[0033] The specification incorporates by reference the disclosure of DE 10 2018 124 586.6, filed Oct. 5, 2018.

[0034] The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawings, but also encompasses any modifications within the scope of the appended claims.