Search

JP-2026075351-A - Method for sorting sanitary paper bundles and method for manufacturing sanitary paper bundle products

JP2026075351AJP 2026075351 AJP2026075351 AJP 2026075351AJP-2026075351-A

Abstract

[Problem] To appropriately distribute bundles of sanitary paper to multiple transport routes. [Solution] The sorting method for sanitary paper bundles B uses a device that includes a wide conveyor 12, a sorting guide 20 that guides the sanitary paper bundles B provided on the wide conveyor 12, and a plurality of individual conveyors 13 provided in parallel downstream of the wide conveyor 20. The sorting method includes the steps of: moving the introduction end of the sorting guide 20 horizontally to form a transport path on the wide conveyor 12 for sending the sanitary paper bundles B being transported by the wide conveyor 12 to one of the individual conveyors 13; and transporting the sanitary paper bundles B downstream along the sorting guide 20 by the wide conveyor 12 and handing over the sanitary paper bundles B to one of the individual conveyors 13 provided beyond the output end of the sorting guide 20. [Selection Diagram] Figure 3

Inventors

  • 坂野 賀津士

Assignees

  • 王子ホールディングス株式会社

Dates

Publication Date
20260508
Application Date
20241022

Claims (9)

  1. A method for sorting stacks of sanitary paper, An apparatus is used that includes a wide conveyor, a sorting guide provided on the wide conveyor for guiding the bundles of sanitary paper, and a plurality of individual conveyors provided in parallel downstream of the wide conveyor. The process involves moving the introduction end of the distribution guide horizontally to form a transport path on the wide conveyor for sending the bundle of sanitary paper being transported by the wide conveyor to one of the individual conveyors, A sorting method comprising the steps of transporting the sanitary paper bundles downstream along the sorting guide by the wide conveyor, and handing over the sanitary paper bundles to one of the individual conveyors provided at the end of the output end of the sorting guide.
  2. The sorting method according to claim 1, wherein the sorting guide is such that at least one end of the introduction end and the output end can be displaced downstream in the transport direction in accordance with the transport of the sanitary paper bundle during the horizontal transition.
  3. The sorting method according to claim 2, wherein the transport path of the sanitary paper bundle is switched at the displaced end of the sorting guide.
  4. The sorting method according to claim 1, wherein the sorting guide has a pivot point downstream in the direction of transport of the sanitary paper bundle, and the introduction end rotates horizontally with respect to the pivot point.
  5. The sorting method according to claim 1, wherein the sorting guide contracts at the introduction end in accordance with the transport of the sanitary paper bundle during the horizontal transition, and extends at the introduction end when the horizontal transition stops.
  6. The apparatus further includes an introduction conveyor that supplies the sanitary paper bundles to the wide conveyor at intervals, The sorting method according to claim 1, wherein, during the horizontal transition of the introduction end of the sorting guide, the introduction conveyor transitions horizontally toward the opposite direction to the transition direction of the sorting conveyor.
  7. The distribution method according to claim 1, wherein the distribution guide moves downstream from the introduction end to the output end in accordance with the transport of the sanitary paper bundle during the horizontal transition.
  8. The sorting method according to claim 7, wherein the transport path of the sanitary paper bundle is switched at the portion from the introduction end to the output end.
  9. A step of sorting the sanitary paper bundles according to the sorting method described in claim 1, The process includes packaging the bundles of sanitary paper sorted by the sorting method described above. A method for manufacturing sanitary paper bundle products.

Description

This invention relates to a method for sorting the transport path of a bundle of sanitary paper, such as tissue paper, during transport. Furthermore, this invention relates to a method for manufacturing a sanitary paper product in which the bundle of sanitary paper is packaged with a flexible film or the like. Products in which sanitary paper such as tissue paper is packaged in a resin film (so-called soft-pack products) have been known for some time (Patent Document 1). Furthermore, in the manufacture of tissue paper, a method is generally used in which continuous sheets fed from multiple raw material rolls are folded using a multi-folder (also called a multi-stand interfolder), and then cut into individual sizes using a cutting machine to obtain bundles of sanitary paper (Patent Document 2). This method allows for the rapid and continuous production of bundles of sanitary paper. Furthermore, a packaging machine for automatically placing bundles of multiple articles into a packaging bag made of resin film or the like is also known (Patent Document 3). Such a packaging machine is configured to widen the opening of the packaging bag, and then, while maintaining the widened state of the bag, push the multiple articles into the bag through the opening. Japanese Patent Publication No. 2021-133981Japanese Patent Publication No. 2012-011170Japanese Patent Publication No. 2014-125228 Figure 1 schematically illustrates the manufacturing method of sanitary paper bundle products.Figure 2 shows an example of a sorting device according to the first embodiment.Figure 3 shows an overview of the method for sorting sanitary paper bundles using the sorting device shown in Figure 2.Figure 4 shows a specific example of a method for sorting sanitary paper bundles using the sorting device shown in Figure 2.Figure 5 shows a specific example of a method for sorting sanitary paper bundles using the sorting device shown in Figure 2.Figure 6 shows a modified example of the sorting device according to the first embodiment.Figure 7 shows a modified example of the sorting device according to the first embodiment.Figure 8 shows a modified example of the sorting device according to the first embodiment.Figure 9 shows a modified example of the sorting device according to the first embodiment.Figure 10 shows an example of a route switching device.Figure 11 shows an example of a sorting device according to the second embodiment and a method for sorting sanitary paper bundles using the same.Figure 12 shows an example of an extrusion guide.Figure 13 is a flowchart showing an example of a manufacturing method for sanitary paper bundle products.Figure 14 is a plan view showing an example of a deceleration process in the manufacturing method of sanitary paper bundle products.Figure 15 is a plan view showing an example of a spacing adjustment process in a manufacturing method for sanitary paper bundles.Figure 16 shows a modified sorting device and a method for sorting sanitary paper bundles using it. The following describes embodiments for carrying out the present invention with reference to the drawings. The present invention is not limited to the embodiments described below, but also includes modifications made to the embodiments described below within the scope that would be obvious to those skilled in the art. Figure 1 shows a method for manufacturing a sanitary paper bundle product, illustrating the process from obtaining the sanitary paper bundle B using a multi-folder 1 to packaging it with a packaging machine 4. As shown in Figure 1, the multi-folder 1 folds sanitary paper P (base paper) unfurled from numerous rolls to form a continuous laminate of sanitary paper P. The multi-folder 1 is equipped with a number of rolls corresponding to the number of sanitary paper bundles. For example, to obtain a product consisting of 200 sets of two-ply tissues (400 sheets in total), the multi-folder 1 is equipped with 200 sets of two-roll rolls (400 rolls in total). Such a multi-folder 1 (multi-stand interfolder) can be a known type. Next, the laminate of sanitary paper P formed by the multi-folder 1 is transported downstream and cut at predetermined intervals by a cutting machine 2. This results in individual sanitary paper bundles B. A known rotary cutter can be used as the cutting machine 2. In this way, sanitary paper bundles B can be produced at high speed and continuously. In sanitary paper stack B, each sheet of sanitary paper is folded approximately in half, and two halves of other sheets are inserted between each sheet, above and below it. This creates a pop-up mechanism where lifting one sheet of sanitary paper lifts the sheets below it as well, forming a unified stack. Subsequently, multiple stacks of sanitary paper B are transported downstream in a single line by a conveyor or the like. There is a speed difference between the transport speed of the sanitary paper B within the cutting machine 2 and the transport speed of the sanitary paper B