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CN-116323449-B - Transfer module for a converting machine

CN116323449BCN 116323449 BCN116323449 BCN 116323449BCN-116323449-B

Abstract

The invention relates to a transfer module (26) for a folding-gluing machine (1), comprising a lower transfer device (38) and an upper transfer device (36), the lower transfer device (38) and the upper transfer device (36) being adapted to receive a folding box (2) therebetween and to transfer the folding box in a transport direction (D) towards a loading surface (90) located downstream in the stacking module. The upper conveyor (36) of the conveyor module extends further in the transport direction than the lower conveyor (38), which comprises a first lower conveyor belt (38 a) and a second lower conveyor belt (38 b), the first lower conveyor belt (38 a) and the second lower conveyor belt (38 b) each having an inlet end (67 a,67 b) and an outlet end (66 a,66 b), wherein the outlet ends are displaceable in the transport direction.

Inventors

  • FAVRE OLIVIER
  • Raoul Michud
  • Jonas Dube
  • Olivier Millbauer
  • N. Britz
  • D method Calvino
  • Pierre Maleb

Assignees

  • 鲍勃斯脱梅克斯股份有限公司

Dates

Publication Date
20260512
Application Date
20210721
Priority Date
20200803

Claims (15)

  1. 1. A transfer module (26) for a folding-gluing machine (1), comprising a lower transfer device (38) and an upper transfer device (36), the lower transfer device (38) and the upper transfer device (36) being adapted to receive a folded box (2) therebetween and to transfer the folded box in a transport direction (D) towards a loading surface (90) located downstream in the stacking module, Wherein the upper conveyor (36) of the conveyor module extends further in the transport direction than the lower conveyor (38), Wherein the lower conveyor comprises a first lower conveyor belt (38 a) and a second lower conveyor belt (38 b), the first lower conveyor belt (38 a) and the second lower conveyor belt (38 b) each having an inlet end (67 a,67 b) and an outlet end (66 a,66 b), wherein the outlet ends are individually displaced in the transport direction at different longitudinal positions.
  2. 2. The conveyor module according to claim 1, wherein the upper conveyor comprises a first upper conveyor belt (36 a) and a second upper conveyor belt (36 b), each of the first upper conveyor belt (36 a) and the second upper conveyor belt (36 b) being provided with a distal inlet end (60 a,60 b) and a distal outlet end (62 a,62 b), wherein the distal outlet ends of the first upper conveyor belt and the second upper conveyor belt are individually displaceable in the transport direction such that their protrusion in the transport direction can be changed.
  3. 3. The conveyor module of claim 2, wherein the distal outlet end of the first upper conveyor belt and the distal outlet end of the second upper conveyor belt are positionable at different longitudinal positions relative to each other.
  4. 4. A conveyor module as in claim 2 or 3 wherein the first and second upper conveyor belts are arranged parallel to one another.
  5. 5. A conveyor module according to claim 2 or 3, wherein each of the first and second upper conveyor belts is mounted on an upper frame portion (46) having a fixed frame portion (46 a) and a movable frame portion (46 b), wherein the movable frame portion comprises first and second distal outlet rollers (68 a,68 b) defining distal outlet ends of the first and second upper conveyor belts.
  6. 6. The conveyor module of claim 5, wherein each of the first and second lower conveyor belts is mounted on a lower frame portion (45) having a fixed frame portion (45 a) and a movable frame portion (45 b), wherein the movable frame portion includes first and second distal exit rollers (65 a,65 b) defining distal exit ends of the first and second lower conveyor belts.
  7. 7. A conveyor module according to claim 6, wherein the first and second roller assemblies (80 a,80 b) are connected to the movable frame part (45 b) of the lower conveyor and configured to follow the movement thereof.
  8. 8. A conveyor module according to claim 2 or 3, wherein the first and second lower conveyor belts and the first and second upper conveyor belts are laterally movable such that the lateral distance between the conveyor belts can be modified.
  9. 9. A conveyor module according to claim 6, wherein the first and second lower conveyor belts and the first and second upper conveyor belts are guided by displaceable compensation rollers (39 a,39 b) located in the fixed frame part, wherein the rollers are configured to change the travel path of the conveyor belts and to change their contact length against the folding box.
  10. 10. A conveyor module according to claim 1, wherein a support surface (S) in the conveyor module is located between the upper and lower conveyor means (36, 38), wherein the support surface is inclined upwards in the transport direction at an angle in the range from 1 ° to 15 °.
  11. 11. The transfer module of claim 10, the angle being between 3 ° and 7 °.
  12. 12. The transfer module of claim 10, the angle being 5 °.
  13. 13. A transfer and stacking assembly for a folder gluer, the assembly comprising a transfer module according to any one of the preceding claims and a stacking module (28), wherein the stacking module comprises a loading surface (90) and an ejector (76), wherein the loading surface (90) is inclined upwards in the transport direction.
  14. 14. The transfer and stacking assembly of claim 13, wherein the support surface in the transfer module and the loading surface in the stacking module have substantially the same inclination angle.
  15. 15. The conveyor and stacking assembly according to claim 13 or 14, wherein at least a portion of the ejector is positioned upstream of the first and second distal exit rollers (65 a,65 b) of the first and second lower conveyor belts (38 a,38 b).

Description

Transfer module for a converting machine Technical Field The present invention relates to a converting machine for producing folding boxes from sheet blanks. In particular, the present invention relates to an adjustment portion for stacking and bundling folded boxes together. Background Converting machines are used in the packaging industry for converting sheet blanks, such as cardboard or paperboard blanks, into folding boxes. These machines are commonly referred to as folder gluers and are configured to convert the blank into a folded box by continuously folding and gluing the blank. The resulting folded boxes have a flat shape and multiple boxes can be stacked and adjusted together in bundles for ease of transportation and storage. However, when forming the calibrated stack of folded boxes in a folder gluer, there are many movable mechanical parts in contact with the edges of the boxes. This may create uneven stacking and cause damage to the cassette, which may impair the function or aesthetic features of the cassette. Document US3224761 discloses a module for storing sheets in a calibrated manner. The module includes an upper conveyor belt extending over the stack holder and nozzles that provide compressed air to adhere the sheets to the upper conveyor belt. Disclosure of Invention In view of the above, an object of the present invention is to prevent damage to a folding box when a plurality of bundles of stacked folding boxes are adjusted. This problem is solved by a transfer module according to claim 1, with other advantageous features of the invention being defined in the dependent claims. According to a first aspect of the present invention, there is provided a transfer module for a folding-gluing machine, comprising a lower transfer device and an upper transfer device, which are adapted to receive a folding carton therebetween and to transfer the folding carton in a transport direction towards a loading surface downstream in a stacking module, Wherein the upper conveyor of the conveyor module extends farther in the transport direction than the lower conveyor, And wherein the lower conveyor comprises a first lower conveyor belt and a second lower conveyor belt, each having an inlet end and an outlet end, wherein the outlet end is displaceable in the transport direction. The upper conveyor is configured to extend beyond a loading surface in the stacked module. The displaceable outlet end of the lower conveyor is configured such that the distance between the outlet end of the lower conveyor and the loading surface in the stacked module can be changed. The invention is based on the insight that a defined limited space for folding the box can be formed by the positions of the upper conveyor and the lower conveyor. This prevents undesired movement and misalignment of the folding box and guides the folding box downward to form an aligned stack on the loading surface in the stacked module. The outlet ends of the lower conveyor belts can be displaced individually in the transport direction at different longitudinal positions. In an advantageous embodiment, the upper conveyor comprises a first upper conveyor belt and a second upper conveyor belt, each conveyor belt having a distal inlet end and a distal outlet end, wherein the distal outlet ends of the first upper conveyor belt and the second upper conveyor belt are individually displaceable in the transport direction such that their protrusion in the transport direction can be varied. In this way, the protrusion of the first and second upper conveyor belts of the upper conveyor on the loading surface in the stacked module can be changed. In one embodiment, the upper conveyor of the conveyor module extends further in the transport direction than the lower conveyor, wherein the upper conveyor extends beyond the loading surface in the stacked module. In one embodiment, the upper conveyor extension is configured to extend at least 50% of the length of the loading surface in the stack module beyond the loading surface. In one embodiment, the distal outlet end of the first upper conveyor belt and the distal outlet end of the second upper conveyor belt may be positioned at different longitudinal positions relative to each other. The first upper conveyor belt and the second upper conveyor belt may be arranged parallel to each other. In one embodiment, each of the first and second upper conveyors is mounted on an upper frame portion having a fixed frame portion and a movable frame portion, wherein the movable frame portion includes first and second distal exit rollers defining distal exit ends of the first and second upper conveyors. In one embodiment, each of the first lower conveyor belt and the second lower conveyor belt is mounted on a lower frame portion having a fixed frame portion and a movable frame portion, wherein the movable frame portion includes first and second distal exit rollers defining distal exit ends of the first lower conveyor belt and the secon