Material guide device

Abstract

To supply a material along a preset path.SOLUTION: In a material guide device, a roll 3 is provided which has an outer peripheral surface 3F extending along a preset supply path 2 of a belt-like paper material 1 at a place where a supply direction of the material 1 changes into a downward downstream direction along a vertical direction D2 from an upstream direction D1 different from the vertical direction D2 in the supply path 2. Out of the material 1, an extension part 1C which is a portion further extending to the supply direction downstream side than the outer peripheral surface 3F is provided at packaging equipment suspended at the roll 3, and the supply direction of the material 1 is guided. The material guide device includes: a processing unit 4 for performing packaging processing with respect to the extension part 1C suspended in the downstream direction from the roll 3; and a guide 5 for pressing the extension part 1C against the direction toward the downstream direction from the posture along an NG direction D3 deviated to the upstream direction D1 side from the downstream direction, and for guiding the supply direction of the extension part 1C.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a material guiding device that guides the material in a supply direction in a packaging facility to which a strip-shaped material is supplied. [Background technology]

[0002] As one type of packaging equipment, equipment that processes a strip-shaped material that is supplied along a preset path is known. For example, a packaging equipment has been proposed in which a resin film material is supplied, and the supplied material is laminated or cut off to perform packaging processing (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-69630 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, as materials supplied in packaging equipment, it is conceivable to use paper materials instead of the above-mentioned resin film materials from the viewpoint of reducing the environmental load. Since paper materials tend to be stiffer than resin film materials, there is a risk that the paper materials will deviate from the supply path due to a repulsive force that acts to return the folded portion to its original position at the point where the supply direction changes. Specifically, when paper materials are supplied with the leading end on the downstream side of the supply direction hanging down, a repulsive force acts against the weight of the material that hangs down. This repulsive force may cause the material to deviate from the preset supply path and be supplied in an inappropriate direction. Therefore, there is room for improvement in supplying materials along pre-defined routes.

[0005] The material guiding device of the present invention was invented in consideration of the above problems, and one of its objectives is to supply materials along a preset route. However, in addition to this objective, the present invention is also intended to achieve actions and effects derived from the configurations shown in the "Mode for Carrying Out the Invention" below, which are actions and effects that cannot be obtained with conventional technology. [Means for solving the problem]

[0006] The material guiding device disclosed here is provided with a roll having an outer circumferential surface extending along a preset supply path of a belt-shaped paper material at a location where the supply direction of the material changes from an upstream direction different from the vertical direction to a downstream direction downward along the vertical direction, and an extension portion of the material that extends downstream in the supply direction beyond the outer circumferential surface is provided in a packaging device suspended from the roll to guide the supply direction of the material. This material guiding device includes a processing unit that performs packaging processing on the extension portion suspended from the roll along the downstream direction, and a guide that holds the extension portion from a position along the NG direction deviating from the downstream direction to the upstream direction toward the downstream direction and guides the supply direction of the extension portion. Effect of the Invention

[0007] According to the material guiding device of the present invention, materials can be supplied along a preset route. [Brief description of the drawings]

[0008] [Figure 1] 3 is a schematic diagram showing a part of a material whose supply direction is guided by the material guiding device, with a cutaway view; FIG. [Diagram 2] FIG. 1 is a schematic diagram showing a material guiding device according to an embodiment; [Diagram 3] FIG. 13 is a schematic diagram showing a material guiding device according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a material guide device according to an embodiment will be described. The material guiding device of this embodiment is provided in a packaging facility in which a strip-shaped material is transported along a preset supply path. In the packaging equipment, packaging processes are sequentially performed on the materials conveyed along the supply path to produce packages in which the contents are packaged with the materials. One example of a package produced by this packaging equipment is a package in which multiple toilet rolls (contents) are packaged in a paper bag made of a paper material. The material guiding method of this embodiment is carried out by a material guiding device incorporated in such packaging equipment.

[0010] In the description of this embodiment, the upstream and downstream directions are defined based on the material supply direction, the width direction is the direction perpendicular to the supply direction in the planar region in which the material extends in a band shape, and the thickness direction is the direction perpendicular to both the supply direction and the width direction. In addition, the direction along the direction in which gravity acts is defined as downward, and the opposite direction to downward is defined as upward. When there is no distinction between downward and upward, the direction is referred to as the vertical direction. The supply direction is the direction in which the material is processed in the packaging equipment, and is also called the MD (machine direction) or flow direction. The width direction is also called the CD (cross direction), and the thickness direction is also called the TD (transverse direction).

[0011] I. One embodiment In the following embodiment, the configuration of the material (guiding target) guided in the supply direction by the material guiding device and the material guiding method is described in item [1], the configuration of the material guiding device is described in item [2], the configuration of the material guiding method is described in item [3], and the action and effect of the configurations of items [2] and [3] are described in item [4].

[0012] [1. Materials] As shown in FIG. 1, in the material 1, gusset bags 10 are arranged continuously in the supply direction (indicated as "MD" in FIG. 1). Each gusset bag 10 has a first surface portion 11 and a second surface portion 12 as unfolded portions, and a pair of gussets 13 as folded portions. The surface portions 11 and 12 face each other in the thickness direction and extend in the same area as the material 1. The gussets 13 extend in an area of ​​the material 1 except for the widthwise center, and are folded at a valley fold line F provided in the thicknesswise center. The first surface portion 11 and the second surface portion 12 face each other in the thickness direction, and the widthwise edges of the facing surfaces 11 and 12 are connected to each other via a pair of gussets 13.

[0013] In each gusset bag 10, upstream portions 1U (shown by dots in FIG. 1) of the surfaces 11, 12 are previously stuck together. After each gusset bag 10 is cut off from the material 1, the surfaces 11, 12 in the areas other than the upstream portion 1U are separated from each other, whereby the fold of the gusset 13 is unfolded and the opening surrounded by the downstream edge 1D of the gusset bag 10 is widened. The gusset bag 10 before the surfaces 11, 12 are separated from each other in this manner forms part of the belt-shaped material 1 and extends in a planar shape.

[0014] The material 1, in which the gusset bags 10 provided with the surfaces 11, 12 that can be freely attached and detached via the gusset 13 are arranged in the supply direction as described above, is a packaging material that is processed into a paper bag for packaging the contents, and is a paper material. The "paper material" here means a material in which the ratio of paper in the material 1 is 50% or more (for example, the weight content of the pulp that makes the paper is 50% or more of the total weight), and can also be said to be a material whose main component is paper. Therefore, the paper material includes not only a material made of paper that has not been processed by lamination or pasting, but also a material made of processed paper (composite material) to which a polyethylene layer (resin film layer) is laminated or pasted. Examples of paper materials include laminated paper, glassine paper, mixed paper, and pure white paper.

[0015] Since the material 1 of this embodiment is made of paper as described above, it tends to have higher stiffness than materials made of thin resin films, and has a certain stiffness. The "certain stiffness" here refers to a physical property that causes the material 1 to deviate from a preset supply path by a repulsive force that acts to return the bend of the material 1 to its original position at a point where the supply direction of the material 1 changes. As described above, the material 1 having a predetermined stiffness is corrected from deviating from the supply path by the material guiding device described next.

[0016] [2. Equipment] As shown in FIG. 2, the material guiding device has three routes 2A, 2B, and 2C, exemplified below, preset as a supply route 2 along which the material 1 is conveyed. Horizontal path 2A (upstream path): the most upstream path given as a specific example in this embodiment Corner path 2B: A path set immediately after horizontal path 2A Vertical path 2C (downstream path): A path set immediately after corner path 2B

[0017] The horizontal path 2A and the vertical path 2C are set in a planar shape (linear in side view). The horizontal path 2A extends along a horizontal direction D1 (an upstream direction different from the vertical direction), and the vertical path 2C extends along a vertical direction D2. On the other hand, the corner path 2B is set to have a curved surface shape (a curved shape in a side view). The horizontal path 2A and the vertical path 2C are continuous with each other via the corner path 2B.

[0018] In the horizontal path 2A, the material 1 is supplied from the upstream side to the downstream side (from right to left in FIG. 2) along the horizontal direction D1 while the vertical position remains unchanged. In the vertical path 2C, the material 1 is supplied in a downward direction (downstream direction) along the vertical direction D2. In the corner path 2B, the materials 1 are supplied while the supply direction gradually changes from the horizontal direction D1 to a downward direction along the vertical direction D2. That is, the corner path 2B is provided at a location where the supply direction of the materials 1 changes.

[0019] The material 1 extends over the above-mentioned routes 2A, 2B, and 2C, and is roughly divided into the following three parts corresponding to the routes 2A, 2B, and 2C, respectively. Base 1A: The part extending along horizontal path 2A Curved portion 1B: The portion extending along corner path 2B Extension portion 1C: A portion extending along vertical path 2C The extension portion 1C is a portion of the material 1 that hangs down on the downstream side, and the base portion 1A and the curved portion 1B are portions that support the hanging of the extension portion 1C on the upstream side.

[0020] The extension portion 1C hangs down from a roll 3 having an outer peripheral surface 3F that is provided along the corner path 2B. Specifically, the roll 3 is disposed at a position where a portion of the outer peripheral surface 3F extends along the corner path 2B. The roll 3 is a member that guides the supply of the material 1, and is also a member that supports the hanging of the extension portion 1C of the material 1. In this manner, the extension portion 1C of the material 1 that extends downstream of the outer peripheral surface 3F hangs down from the outer peripheral surface 3F, and the material 1 hangs down on the roll 3.

[0021] The base portion 1A extending to the hanging base of the extension portion 1C is cut by a cutter 7. The cutter 7 is a cutting part that cuts off each gusset bag 10 from the material 1. The cutter 7 is disposed at a position where it can cut the base portion 1A. The boundaries between adjacent gusset bags 10 in the material 1 are cut in sequence by the cutter 7.

[0022] The extension 1C hanging down from the roll 3 is subjected to packaging treatment by a treatment section 4 which will be described next. The processing section 4 is a packaging processing part that processes the extension section 1C hanging down from the roll 3. The processing section 4 is set to process the extension section 1C hanging down from the roll 3 along the vertical path 2C (or more specifically, the material 1 along the preset supply path 2), and processing of the extension section 1C deviating from the vertical path 2C is impossible or may result in a defect.

[0023] The processing section 4 is disposed at a position where it can process the extension 1C hanging down from the roll 3 along the vertical path 2C. In detail, the processing section 4 is located at a position spaced downward from the roll 3 by a distance within a range where the extension 1C hanging down under its own weight deviates from the vertical path 2C due to a predetermined stiffness of the material 1. As a specific example, the processing section 4 is disposed below the roll 3 by a dimension in the supply direction in which two or less gusset bags 10 extend in the material 1. The roll 3, the processing section 4, and the cutter 7 may be provided in the material guiding device, or may be provided not in the material guiding device but in a packaging facility in which the material guiding device is provided.

[0024] In this embodiment, the processing unit 4 is exemplified by a suction arm 4 . The suction arm 4 is a functional unit that separates the surfaces 11, 12 of the extension portion 1C to widen the opening of the gusset bag 10. The suction arm 4 is provided with a pair of arms 41, 42 that sandwich and hold the surfaces 11, 12 of the extension portion 1C by suction. The pair of arms 41, 42 are disposed to face each other across an extension portion 1C that hangs down from a roll 3 along a vertical path 2C as described below. First arm 41: an extension 1 hanging down from a roll 3 along a vertical path 2C An arm on one side of C (the right side in Fig. 2) Second arm 42: an extension 1 hanging down from roll 3 along a vertical path 2C The arm on the other side of C (the left side in Fig. 2)

[0025] The suction arm 4 is switched from a closed state to an open state as described below. Closed state: A state in which the surfaces 11 and 12 of the extension portion 1C are sandwiched and held by suction. Open state: A state in which the surfaces 11 and 12 held by suction are separated from each other. In the suction arm 4 illustrated here, the second arm 42 moves toward and away from the fixed first arm 41, so that the arms 41, 42 clamp the surfaces 11, 12 and separate the surfaces 11, 12 from each other. The timing at which the suction arm 4 clamps and suction-holds the surfaces 11, 12 is simultaneous with the cutting of the material 1 by the cutter 7 or immediately after the cutting. If the suction arm were to perform suction-holding at an interval after the completion of cutting by the cutter, there is a risk that the material may shift in position or fall. Therefore, the reason that suction-holding is performed almost simultaneously with cutting as described above is to prevent the material 1 from shifting in position or falling.

[0026] Incidentally, the extension portion 1C to be processed by the processing unit 4, exemplified by the suction arm 4, is preset to be supplied in a posture along the vertical direction D2 on the vertical path 2C in the packaging equipment. However, in a state in which the extension portion 1C is simply hung down from the roll 3 by its own weight, the extension portion 1C is supplied in a posture (indicated by a two-dot chain line in FIG. 2) along the NG direction D3 deviating from the vertical direction D2 on the horizontal path 2A on the horizontal direction D1 side (upper left side in FIG. 2) on which the material 1 is supplied, due to a certain stiffness of the material 1. This may result in the processing unit 4 being unable to process the extension portion 1C or may cause processing failure.

[0027] Therefore, the material guiding device of this embodiment is provided with a guide 5 that guides (corrects) the supply direction of the extension portion 1C. The guide 5 is an additional part that holds (applies an external force to) the extension portion 1C in a direction from the NG direction D3 toward the vertical direction D2 along the vertical path 2C. The extension portion 1C oriented along the NG direction D3 is held by the guide 5, thereby guiding the supply direction of the extension portion 1C.

[0028] If a thin resin film material with low stiffness is used as the material to be supplied to the packaging equipment, the extension of the material will hang down along the vertical path 2C due to its own weight. Therefore, no guide in the supply direction is required for the resin film material. Therefore, it can be said that guide 5 is the part that needs to be added when the plastic film material supplied to the packaging equipment is changed to paper material 1.

[0029] The guide 5 exemplified in this embodiment is switched between the following ON and OFF states depending on the operating state of the suction arm 4 . ON state: The suction arm 4 is in a closed state and presses the extension portion 1C. OFF state: The suction arm 4 is released from pressing the extension portion 1C in the open state. Status

[0030] In this embodiment, a blowing device 5A and a clamping device 5B are exemplified as the guide 5. The blowing device 5A is an example of the guide 5 that holds the extending portion 1C (material 1) without contacting it, and the clamping device 5B is another example of the guide 5 that holds the extending portion 1C by contacting the curved portion 1B (material 1). The blowing device 5A is a device that blows gas onto the extending portion 1C. The blowing device 5 illustrated here blows gas onto two (multiple) locations spaced apart in the width direction of the extending portion 1C, and is disposed above the horizontal path 2A and the rollers 3. An example of the gas blown by the blowing device 5A is air. However, various gases that can be used in packaging equipment, such as nitrogen gas and argon gas, may also be used for blowing by the blowing device 5A.

[0031] The clamping device 5B is a member that guides the extension portion 1C to a position along the vertical direction D2 by clamping the curved portion 1B between itself and the outer peripheral surface 3F of the roll 3 along the corner path 2B at a point where the supply direction of the material 1 changes from the horizontal direction D1 to downward in the vertical direction D2. The clamping device 5B illustrated here is a plate-like member having a lower surface shaped to correspond to the outer peripheral surface 3F. The blower 5A presses the extension portion 1C by blowing gas when in the ON state, and stops blowing gas when in the OFF state to release the pressure on the extension portion 1C. The clamping device 5B presses the extension portion 1C by clamping the curved portion 1B between itself and the outer peripheral surface 3F when in the ON state, and releases the pressure on the extension portion 1C by being moved away, for example, upward, when in the OFF state.

[0032] In addition, in the material guiding device of this embodiment, a regulating member 6 that structurally regulates the deviation of the extension portion 1C is provided on one side (the right side in FIG. 2) of the vertical path 2C. The "one side" here refers to the side opposite to the side on which the extension portion 1C is positioned in the NG direction D3 with respect to the vertical path 2C, and is the side on which the guide 5 holds down the extension portion 1C. The restricting member 6 is provided with a planar auxiliary guide surface 6F arranged along the vertical path 2C. The auxiliary guide surface 6F is disposed below (vertically downward) the roll 3 and extends at least above (vertically upward) the processing section 4. When the extending portion 1C is excessively pressed down by the guide 5, the auxiliary guide surface 6F is pressed against the extending portion 1C in a planar manner.

[0033] The regulating member 6 illustrated in this embodiment extends to an area where its vertical position overlaps with the suction arm 4, and is flat with a notch or opening to avoid interference with the first arm 41 of the suction arm 4 in the closed state. The material guiding device configured as above implements the material guiding method described below.

[0034] [3. Method] In the material guiding method, a guiding step is performed in the guide 5, a processing step is performed by the processing section 4, a regulating step is performed by the regulating member 6, and a cutting step is performed by the cutter . In the treatment process, a suction process is carried out by the suction arm 4. In the suction process, a closing process is carried out when the suction arm 4 is in a closed state, and an opening process is carried out when the suction arm 4 is in an open state. In the guide process, a blowing process is carried out by the blowing device 5A and a clamping process is carried out by the clamping tool 5B. The material guidance method for sequentially carrying out each of the above steps will be described below with reference to Table 1.

[0035] [Table 1]

[0036] First, a guide step is performed in which the extension portion 1C hanging down from the roll 3 is pressed in a direction from the NG direction D3 toward a downward direction in the vertical direction D2 along the vertical path 2C. In the guiding process, a blowing process in which the extension portion 1C is pressed without contact, and a clamping process in which the curved portion 1B is pressed by contacting it are carried out. In the blowing process, gas is blown onto the extension portion 1C. In the clamping process, at a point where the supply direction of the material 1 changes from the horizontal direction D1 to downward in the vertical direction D2, the curved portion 1B is clamped between the outer peripheral surface 3F of the roll 3 along the corner path 2B, and the extension portion 1C is guided into a position along the vertical direction D2.

[0037] When the extending portion 1C is pressed toward one side with respect to the vertical path 2C by the guiding step, the bias of the extending portion 1C toward one side with respect to the vertical path 2C is regulated by the regulating step. The region in which the bias is regulated by the regulating step is a region below the roll 3, and at least a region above the portion of the material 1 that is treated in the treatment step. The treatment process is started while the above-mentioned guiding process or regulating process is being carried out.

[0038] In the material guiding method exemplified here, the suction process exemplified as a processing process is started during the guiding process and continues to be executed after the guiding process is completed. Note that the cutting process is started and then completed during the guiding process. In the adsorption process, which is partially carried out in parallel with the guiding process as described above, the closing process is carried out before the opening process.

[0039] The closing step is a step of sandwiching and holding the surfaces 11 and 12 of the extension 1C by suction. A part of this closing step is performed in parallel with the guiding step. The opening process is a process for separating the surfaces 11, 12 held by suction from each other. The opening process is performed after the closing process and after the guiding process is completed. That is, in the material guiding method of this embodiment, the guiding process is not performed during the opening process, but is performed in parallel with the closing process. After the processing step, various steps are carried out to perform various packaging processes (detailed explanations are omitted) to produce a package.

[0040] [4. Actions and Effects] Since the material guiding device and the material guiding method of the present embodiment have the above-mentioned configuration, the following actions and effects can be obtained. (1) According to the material guiding device of this embodiment, the guide 5 holds the extension 1C of the material 1, so that the supply direction of the extension 1C can be guided from the NG direction D3 to a downward direction in the vertical direction D2. By correcting the supply direction of the material 1 in this way, the extension 1C of the material 1 can be supplied along a preset vertical path 2C. As a result, the processing unit 4 can appropriately process the material for packaging. Furthermore, when the resin film material supplied to the packaging equipment is changed to paper material 1, packaging using paper material 1 can be properly manufactured simply by adding a guide 5.

[0041] (2) According to the blowing device 5A included in the guide 5, the extension portion 1C in the NG direction D3 deviating from the vertical path 1C is held down without contact by the gas blown from the blowing device 5A. Therefore, the supply direction of the extension portion 1C can be guided while reliably suppressing the occurrence of wrinkles and twists. (3) Furthermore, according to the clamping device 5B included in the guide 5, at a point where the supply direction of the material 1 changes from the horizontal direction D1 to the downward vertical direction D2, the curved portion 1B is clamped between the clamping device 5B and the outer peripheral surface 3F of the roll 3 along the corner path 2B, and the extension portion 1C is guided to a position along the vertical direction D2. Therefore, the supply direction of the extension portion 1C can be reliably corrected.

[0042] (4) The suction arm 4 (suction arm 4 included in the processing section 4) exemplified as the processing section 4 switches its operating state from a closed state in which it clamps and suction-holds the surfaces 11, 12 of the extension section 1C to an open state in which it separates the suction-held surfaces 11, 12 from each other. Since the extension section 1C including the surfaces 11, 12 suction-held by this suction arm 4 is guided in the supply direction by the guide 5 as described above, the suction arm 4 can reliably perform the packaging process of widening the opening of the gusset bag 10.

[0043] (5) If the suction arm 4 continues to be in the open state and the extension portion 1C is held down in the ON state, the surfaces 11 and 12 are prevented from moving apart in the open state, which may result in damage to the extension portion 1C. In response to this, the guide 5 is switched between an ON state in which the extension portion 1C is held down in the closed state and an OFF state in which the extension portion 1C is released from being held down in the open state. This allows the surfaces 11 and 12 to move away from each other smoothly in the open state, which can prevent damage to the extension portion 1C.

[0044] (6) The auxiliary guide surface 6F of the regulating member 6 provided on one side of the vertical path 2C structurally regulates the deviation of the extension portion 1C. For example, even if the extension portion 1C is excessively pressed down by the guide 5, the extension portion 1C is pressed against the auxiliary guide surface 6F, preventing the extension portion 1C from deviating to one side. This also allows the supply direction of the material 1 to be appropriately guided. (7) The material guiding method can achieve the same functions and effects as the material guiding device.

[0045] [II. Modifications] The above-described embodiment is merely an example, and is not intended to exclude various modifications and application of techniques not explicitly stated in the embodiment. Each configuration of the present embodiment can be modified in various ways without departing from the spirit of the embodiment. In addition, the configurations can be selected as necessary, and can be combined appropriately.

[0046] The material guiding device may not be provided with a regulating member, and may be provided with a guide in an operating state that continues to be in an ON state without being switched between an ON state and an OFF state. With such a material guiding device, it is possible to guide the material supply direction with a simple configuration. In addition, either one of the blowing device and clamping device exemplified as guides may be omitted, or the blowing device and clamping device may be replaced with something that has the function of guiding the supply direction of the extension portion (for example, a roll different from the roll 3 described above).

[0047] As an example of a modified example, as shown in Fig. 3, there is a material guiding device in which only a blowing device 5A is provided as a guide 5, and a regulating member 6 is also provided. With such a material guiding device, it is possible to reliably guide (correct) the supply direction of the extension part of the material while suppressing the complexity of the configuration. In addition, the processing section is not limited to the suction arm given as an example, and various types of processing sections can be applied as long as they process the extended section. For example, instead of or in addition to the cutter described above in one embodiment, a cutter that cuts the extended section hanging down from the roll along a vertical path may be provided as the processing section. Furthermore, if the supply direction dimension of the extension portion hanging down from the roll is sufficiently long, the weight acting on the extension portion becomes greater than the repulsive force due to a specified stiffness, so that the extension portion is supplied along the vertical path without deviating from the vertical path.

[0048] [III. Notes] Regarding the above embodiment, the following supplementary notes are disclosed. [Appendix 1] A material guiding device comprising: a roll having an outer peripheral surface extending along a predetermined supply path of a belt-shaped paper material at a location where the supply direction of the material changes from an upstream direction different from a vertical direction to a downward downstream direction along the vertical direction; and an extension portion of the material that extends downstream in the supply direction beyond the outer peripheral surface is provided on a packaging device suspended from the roll, and the material guiding device guides the supply direction of the material, a processing section that performs a packaging process on the extension section that hangs down from the roll in the downstream direction; a guide that holds the extension portion in a direction toward the downstream direction from a position along a NG direction deviating from the downstream direction to the upstream direction and guides the extension portion in the supply direction. A material guiding device characterized by the above. [Appendix 2] The guide includes a blower that blows gas onto the extension and holds the extension without contacting it. 2. The material guiding device according to claim 1, [Appendix 3] The guide includes a clamping device that clamps the material between the outer circumferential surface and the guide along the supply path at the location to guide the extension portion to a position along the downstream direction. 3. The material guiding device according to claim 1 or 2. [Appendix 4] The material includes gusset bags arranged in a continuous line along the supply direction, the gusset bags having first and second surfaces that face each other via a folded gusset, The processing section includes a suction arm that can be switched from a closed state in which the first surface portion and the second surface portion of the extension portion are sandwiched and held by suction to an open state in which the suction-held first surface portion and the second surface portion are separated from each other. 4. A material guiding device according to any one of claims 1 to 3. [Appendix 5] The guide is switched between an ON state in which the guide presses the extension portion in the closed state and an OFF state in which the guide is released from pressing the extension portion in the open state. 5. The material guiding device according to claim 4, [Appendix 6] The supply path includes a planar auxiliary guide surface provided vertically below the roll and vertically above the processing section, on the opposite side to the side where the extension section is positioned in the NG direction with respect to the downstream direction, and a regulating member that structurally regulates the bias of the extension section toward the opposite side. 6. A material guiding device according to any one of claims 1 to 5. [Appendix 7] A material guiding method for guiding the supply direction of a belt-shaped paper material in packaging equipment, comprising: a roll having an outer peripheral surface extending along a predetermined supply path at a location where the supply direction of the material changes from an upstream direction different from a vertical direction to a downward downstream direction along a vertical direction; and an extension portion of the material that extends downstream in the supply direction beyond the outer peripheral surface is hung down from the roll, the method comprising: a guide process of pressing the extension portion in a direction toward the downstream direction from a position along a NG direction deviating from the downstream direction toward the upstream direction, and guiding the supply direction of the extension portion; and a processing step of performing a packaging process on the extension portion whose supply direction has been guided in the guiding step. A material guidance method comprising: [Appendix 8] The guiding step includes a blowing step of blowing gas onto the extending portion to hold the extending portion in a non-contact manner. 8. The material guidance method according to claim 7, [Appendix 9] The guiding step includes a clamping step of clamping the material between the outer circumferential surface and the extending portion along the supply path at the location to guide the extending portion to a position along the downstream direction. 9. The material guidance method according to claim 7 or 8, [Appendix 10] The material includes gusset bags arranged in a continuous line along the supply direction, the gusset bags having first and second surfaces that face each other via a folded gusset, The processing step includes a suction step of performing a closing step of sandwiching and holding the first surface portion and the second surface portion of the extension portion by suction, and performing an opening step of separating the first surface portion and the second surface portion held by suction from each other after the closing step. 10. The material guidance method according to any one of claims 7 to 9, [Appendix 11] The guiding step is not performed during the opening step, but is performed in parallel with the closing step. 11. The material guidance method according to claim 10, [Appendix 12] a regulating step of regulating a bias of the extension portion toward an opposite side to a side where the extension portion is located in an orientation along the NG direction with respect to the downstream direction, at a vertical position below the roll and vertical position above a portion to be treated in the treatment step; 12. The material guidance method according to any one of claims 7 to 11, [Explanation of symbols]

[0049] 1. Materials 10 Gusseted Bag 11 First side 12 Second surface part 13. Depth 1A base 1B Curved section 1C Extension 1D: downstream edge of surface portions 11 and 12 1U: The upstream portion of the surfaces 11 and 12 2. Supply Channel 2A Horizontal route (upstream route) 2B Corner Route 2C Vertical route (downstream route) 3 Rolls 3F outer surface 4. Suction arm (processing section) 41 First Arm 42 Second Arm 5 Guide 5A Blower 5B Pincer 6 Regulatory Materials 6F Auxiliary guide surface 7. Cutter D1 Horizontal direction (upstream direction) D2 Vertical direction (downstream direction) D3 NG direction F Taniori line

Claims

1. A material guiding device comprising: a roll having an outer peripheral surface extending along a predetermined supply path of a belt-shaped paper material at a location where the supply direction of the material changes from an upstream direction different from a vertical direction to a downward downstream direction along the vertical direction; and an extension portion of the material that extends downstream in the supply direction beyond the outer peripheral surface is provided on a packaging device suspended from the roll, and the material guiding device guides the supply direction of the material, a processing section that performs a packaging process on the extension section that hangs down from the roll in the downstream direction; a guide that holds the extension portion in a direction toward the downstream direction from a position along a NG direction deviating from the downstream direction toward the upstream direction and guides the supply direction of the extension portion, The guide includes a blower that blows gas onto the extension and holds the extension without contacting it. A material guiding device characterized by the above.

2. The guide includes a clamping device that clamps the material between the outer circumferential surface and the guide along the supply path at the location to guide the extension portion to a position along the downstream direction.

2. The material guiding device according to claim 1,

3. The material includes gusset bags arranged in a continuous line along the supply direction, the gusset bags having first and second surfaces that face each other via a folded gusset, The processing section includes a suction arm that can be switched from a closed state in which the first surface portion and the second surface portion of the extension portion are sandwiched and held by suction to an open state in which the suction-held first surface portion and the second surface portion are separated from each other.

3. The material guiding device according to claim 1 or 2.

4. The guide is switched between an ON state in which the guide presses the extension portion in the closed state and an OFF state in which the guide releases the pressure on the extension portion in the open state.

4. The material guiding device according to claim 3.

5. The supply path includes a planar auxiliary guide surface provided vertically below the roll and vertically above the processing section, on the opposite side to the side where the extension portion is positioned in the NG direction with respect to the downstream direction, and a regulating member that structurally regulates the bias of the extension portion toward the opposite side.

5. The material guiding device according to claim 1, wherein the material guiding device is a material guide device.

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