JP2023151098A - Sheet member unpacking device - Google Patents

Abstract

To provide a sheet member unpacking device capable of unpacking a packing body of sheet members packed with a packing material in a stacked state, and capable of taking out the sheet members in the stacked state.SOLUTION: A sheet member unpacking device is configured to: press, by a pressing mechanism 11 paper-made packaging material 2 stored in a stacked state inside a packing material 3 in a packing material-stacked direction; and in that state, while suctioning, by a suction mechanism 13, an outside surface of the packing material 3 orthogonal to an open face 6 of a packing body 5, move, by a movement mechanism 15, a suction part 14 of the suction mechanism 13 in a direction opposed to the open face 6 of the packing body 5. Thereby, the packing material 3 can be removed from the paper-made packaging material 2 stored in the stacked state inside the packing material 3.SELECTED DRAWING: Figure 12

Description

The present invention relates to a sheet member unpacking device, and more particularly, to a sheet member unpacking device for unpacking a package in which sheet members such as paper packaging materials are stacked and packed with packing material. .

For example, products are sold in which liquids such as drinks are filled in paper packaging materials (packs). Such paper packaging materials, for example, are made by rolling out the material into a cylindrical case, filling it with liquid, and then sealing the top of the case to store the product. becomes. The paper packaging material in the material state is packed in a folded state and stacked one on top of the other. As a supply device for supplying the paper packaging material packed in this manner to a liquid filling machine, there is, for example, one described in Patent Document 1 below. Further, as an apparatus for supplying folded paper packaging materials in a stacked state as described above to a box making/filling machine, for example, there is one described in Patent Document 2 below.

Utility Model Publication No. 5-75236 Japanese Patent Application Publication No. 2001-31016

However, the paper packaging material supplying device described in Patent Document 1 transports a package in which stacked paper packaging materials are packed with packing materials, and the paper packaging material supplying device is one that transports a package in which stacked paper packaging materials are packed with packing materials. The work of extracting the packaging material and feeding it to the filling machine must be done by a person. Furthermore, in Patent Document 2, the paper packaging materials can be taken out one by one from the stacked state and fed to the box making/filling machine; The work of taking out the stacked paper packaging materials and feeding them as they are to the equipment must be done by a person. In particular, the work of taking out a large number of stacked paper packaging materials and transporting them to the equipment is a so-called heavy-duty work that places a strain on the muscles of the person performing the work. Packing equipment is required. Since the folded paper packaging material is in the form of a sheet with a predetermined shape and a predetermined size, the sheet material unpacking device is applicable to sheet-like members of a similar shape, that is, sheet materials. is desired.

The present invention has been made in view of the above-mentioned problems, and its purpose is to unpack a package of sheet members packed in a stacked state using packing materials, and to stack the sheet members in a stacked state. To provide a sheet member unpacking device capable of taking out sheet members in a combined state.

In order to achieve the above object, a sheet member unpacking device according to one aspect of the present invention provides packaging in which a plurality of sheet members stacked in the thickness direction are packed with a packing material and the whole forms a rectangular parallelepiped or a cube. A sheet member unpacking device for unpacking a sheet member and taking out a sheet member in a stacked state, wherein the packed body is a sheet member in a stacked state on at least one side of a rectangular parallelepiped or a cube orthogonal to the direction in which the sheet members are stacked. The sheet member has an open surface that is released from the packaging material, and a portion of the sheet member at both ends in the stacking direction of the sheet members is exposed from the packaging material. a pressing mechanism that presses the sheet members at both ends of the sheet in the direction in which the sheet members are overlapped, and a pressing mechanism that presses the sheet members in the stacked state; and a direction that faces at least one surface of the rectangular parallelepiped or cube that is orthogonal to the open surface of the package. The present invention is characterized in that it includes a suction mechanism that suctions the outer surface of the packaging material, and a moving mechanism that moves the suction part of the suction mechanism in a direction facing the open surface of the package.

According to the sheet member unpacking device of the present invention, the pressing mechanism presses the stacked sheet members in the stacking direction, and in this state, the suction mechanism sucks the outer surface of the packing material, and the moving mechanism By moving the suction part of the suction mechanism in the direction opposite to the open surface of the packaging body, the packaging material can be removed from the stacked sheet members housed inside the packaging material. It is possible to unpack a package of sheet members packed in a packing material in a state in which the sheet members are stacked and take out the sheet members in a stacked state.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a three-sided view showing the overall configuration of an example of a paper packaging material supply device to which the sheet member unpacking device of the present invention is applied. FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the paper packaging material supply device of FIG. 1; FIG. 2 is a three-sided view showing an example of a packaging material package supplied to the paper packaging material supplying device of FIG. 1; FIG. 11 is a three-sided view showing a schematic configuration of a first embodiment of a sheet member unpacking device applied to the paper packaging material supply device of FIG. 1 to unpack the packaging material package of FIG. 10; FIG. 12 is an explanatory diagram of the operation of the sheet member unpacking device of FIG. 11; FIG. 2 is a three-sided view showing another example of a packaging material package supplied to the paper packaging material supplying device of FIG. 1; 14 is a three-sided view of a schematic configuration of a second embodiment of a sheet member unpacking device applied to the paper packaging material supply device of FIG. 1 for unpacking the packaging material package of FIG. 13. FIG. 15 is a flowchart showing an example of the operation of the sheet member unpacking device of FIG. 14. FIG. FIG. 16 is an explanatory diagram of the operation of the sheet member unpacking device of FIG. 14 according to the flowchart of FIG. 15; FIG. 16 is an explanatory diagram of the operation of the sheet member unpacking device of FIG. 14 according to the flowchart of FIG. 15; FIG. 16 is an explanatory diagram of the operation of the sheet member unpacking device of FIG. 14 according to the flowchart of FIG. 15; 15 is a three-sided view showing another configuration example of the sheet member unpacking device of FIG. 14. FIG.

EMBODIMENT OF THE INVENTION Below, embodiment of the sheet material unpacking apparatus of this invention is described in detail with reference to drawings. The embodiments shown below illustrate devices and methods for embodying the technical idea of the present invention. It is not limited to the embodiments described below. Furthermore, the drawings are schematic. Therefore, it should be noted that the relationships, ratios, etc. between thickness and planar dimensions are different from those in reality, and the drawings also include portions where the relationships and ratios of dimensions are different. The technical idea of the present invention can be modified in various ways within the technical scope defined by the claims.

FIG. 1 is an overall configuration diagram showing an example of a paper packaging material supplying device 51 to which a sheet member unpacking device 1 of this embodiment is applied, in which FIG. 1a is a plan view, FIG. 1b is a front view, and FIG. 1c is a right side view. In this paper packaging material supply device 51, a package 5 of the folded paper packaging material 2, which is a sheet member, is supplied from the upper left of FIG. The packaging materials 2 are supplied one by one to a box-forming and filling machine (not shown) that is connected to the right side of FIG. 1a. Examples of the box-filling machine include the one described in Patent Document 2 mentioned above. That is, the sheet material unpacking device (hereinafter referred to as paper packaging material unpacking device) 1 of this embodiment is disposed in the area shown by the broken line in FIG. , take out a plurality (many) of stacked paper packaging materials 2. The paper packaging material 2 is, for example, a paper pack for beverages.

Before explaining the specific configuration of the paper packaging material unpacking device 1 of this embodiment, the configuration and operation of the paper packaging material supplying device 51 shown in FIG. 1 will be described. In addition, the actuators for driving the components of each device, including the paper packaging material unpacking device 1 described later, use well-known drive sources such as air cylinders and electric motors, and their configurations Since well-known movement mechanisms and rotation mechanisms are used in the configuration for linearly moving and rotating the elements, illustrations and explanations thereof will be omitted. This paper packaging material supply device 51 has a roller conveyor 52 disposed on the left side of the device for moving the paper packaging material package 5 in the direction perpendicular to the plane of the paper in FIG. 1b. The paper packaging material package 5 is conveyed downward (toward the front in the direction perpendicular to the page) from the rear side in the direction perpendicular to the page. At the tip of the roller conveyor 52 in the package conveyance direction, there is a guide rail 55 for conveying the package 5 of the paper packaging material 2 and the paper packaging material 2 taken out after unpacking to the box filling machine. It extends toward the left of 1b. As shown in FIG. 1c, for example, this guide rail 55 includes two cylindrical lower guide members 53 that support the lower surface (bottom side) of the paper packaging material 2 being conveyed, and support both side surfaces (side edges) of the two cylindrical lower guide members 53. In order to do this, the cylindrical side guide member 54 is provided, one on each side. Note that the upper surface of the roller conveyor 52 and the upper surface of the lower guide member 53 are set at the same height.

A paper packaging material unpacking device 1 is disposed on the left side of the guide rail 55, and in the vicinity thereof, a paper packaging material package 5 and unpacked paper packaging materials 2 are placed in a stacked state as shown in FIG. 1b. A loading pusher 56 for moving to the left or changing the direction of the paper packaging material 2, and a magazine pusher for cutting out and sending out paper packaging materials 2 one by one to the box filling machine, which are conveyed on the guide rail 55 in an overlapping state. 5858 is provided. The push member 57 of the loading pusher 56 is made of, for example, an elongated thick plate, and has a height equivalent to that of the paper packaging material 2 as shown in FIG. 1b, and a distance between the two lower guide members 53 as shown in FIG. 1a. In FIG. 1b, the paper packaging material 2 is disposed obliquely so that its upper end faces rearward in the transport direction of the paper packaging material 2. This push member 57 is reciprocated between a position to the right of the position shown in FIG. 1b and a position to the left of the roller conveyor 52, and the height direction coincides with the vertical direction from the position shown in FIG. 1b. It is configured so that it can be rotated to a posture.

The push mechanism 59 of the magazine pusher 58 includes a base plate member 60 disposed on both sides of the two side guide members 54 and extending in the height direction, and a width of the guide rail 55 from the top and bottom of each base plate member 60. The arm member 61 extends diagonally to the right toward the central portion of the direction. Each arm member 61 is rotatably attached to the substrate member 60 around a vertical axis, and a coil spring 62 (see FIG. 5 etc.) is interposed between the arm member 61 and the substrate member 60. Therefore, although the arm member 61 is rotatable around the vertical axis, the end opposite to the protruding direction of the arm member 61 abuts the base member 60, and the center side in the width direction of the guide rail is moved from the state shown in FIG. 1b. It doesn't rotate. That is, when an external force that pushes the arm member 61 outward in the width direction of the guide rail 55 acts, it approaches the board member 60 side and closes, but when the external force is removed, the arm member 61 is restored to the position shown in FIG. 1b by the biasing force of the coil spring 62. .

Next, the operation of this paper packaging material supply device 51 will be explained. FIG. 2 shows a state after the stacked paper packaging materials 2 are discharged from the paper packaging material unpacking device 1, with FIG. 2a being a plan view and FIG. 2b being a front view. In the following explanatory diagrams of the operation of the paper packaging material supplying device 51, a partial view a is a plan view and a partial view b is a front view. When the paper packaging material 2 is discharged from the paper packaging material unpacking device 1 in this way, it is loaded on the roller conveyor 52 at the front side in the conveying direction (the far side in the vertical direction of the paper in FIG. 2b) as shown in FIG. 2a. The package 5 of the paper packaging material 2 is transported toward the forward side in the transport direction (the front side in the direction perpendicular to the plane of the paper in FIG. 2b). Note that before the package 5 of the paper packaging material 2 is conveyed on the roller conveyor 52, the push member 57 of the loading pusher 56 is moved to the left side of the roller conveyor 52, that is, to a position on the opposite side of the guide rail 55. There is. In addition, on the guide rail 55, paper packaging materials 2 for about one package remain in a stacked state, and even while adding new paper packaging materials 2, the magazine is removed from this stacked state. The paper packaging material 2 can be cut out one by one by the pusher 58 and supplied to the box-filling machine.

FIG. 3 shows a state in which the conveyance of the package 5 of the paper packaging material 2 on the roller conveyor 52 described in FIG. 2 has been completed. That is, the conveyance of the package 5 on the roller conveyor 52 is completed at a position where the package 5 coincides with the extending direction of the guide rail 55, and then the push member 57 of the loading pusher 56 moves the package 5 to the guide rail. Send it to the 55 side. FIG. 4 shows a state in which the transport (feeding) of the package 5 of the paper packaging material 2 by the loading pusher 56 described in FIG. 3 has been completed. That is, the transport of the package 5 by the loading pusher 56 is completed when the package 5 has been sent to the position of the paper packaging material unpacking device 1 disposed on the guide rail 55, and thereafter, as will be described later. The packing material 3 of the package 5 is removed by the paper packaging material unpacking device 1, and the paper packaging materials 2 contained therein are taken out in a stacked state. In FIG. 4, the upper end of the push member 57 of the loading pusher 56 is set to be slanted toward the rear in the package transport (feeding) direction. The configured push member 57 may be in a posture extending in the vertical direction.

FIG. 5 shows that after unpacking, the paper packaging material 2 taken out in a stacked state is moved to the right side of the figure by the push member 57 of the loading pusher 56, that is, the paper packaging material 2 in the stacked state remaining on the guide rail 55. A state in which the packaging material 2 is being conveyed (extruded) to the side is shown. At this time, by setting the push member 57 diagonally so that the upper end of the push member 57 of the loading pusher 56 is at the rear in the paper packaging material conveyance (extrusion) direction, that is, so that the lower end is in front, the paper The center of gravity of the packaging material 2 can be supported from below with respect to the conveyance direction, thereby preventing the upper end of the stacked paper packaging materials 2 from falling forward in the conveyance direction, which is a so-called forward-tilting posture. can do. When the paper packaging material 2 in the stacked state approaches the stacked paper packaging material 2 remaining in the forward direction in the conveyance direction to the extent that the paper packaging material 2 in the stacked state does not fall forward, the loading pusher 56 is pushed as shown in FIG. The upper end of the member 57 is rotated relative to the lower end in the packaging material conveyance direction. As a result, the extension direction of the push member 57 made of a plate material is directed vertically, and each of the stacked paper packaging materials 2 is erected in a vertical position.

When the unpacked stacked paper packaging materials 2 are stood up vertically, the push member 57 of the loading pusher 56 is moved to the right in the figure to remove the unpacked stacked paper packaging materials 2. The packaging material 2 is conveyed (extruded), and as shown in FIG. Let them come into contact with you. During this time, the push mechanism 59 of the magazine pusher 58 is retracted to the left in FIG. 7, that is, to the rear in the paper packaging material conveyance (supply) direction. At this time, the arm member 61 of the push mechanism 59 is pushed by the side surface (side) of the stacked paper packaging material 2 and tilted toward the substrate member 60, so that it does not become an obstacle during the retreat movement. Then, as shown in FIG. 8, when the push mechanism 59 of the magazine pusher 58 is retracted to the rear in the transport (supply) direction of the stacked paper packaging materials 2 that have already been unpacked, the magazine The push mechanism 59 of the pusher 58 is moved to the right in the figure, and the arm member 61 is brought into contact with the rearmost paper packaging material 2 in the transport direction among the stacked paper packaging materials 2 that have been unpacked. At the same time, the push member 57 of the loading pusher 56 is retracted to the left in the figure, that is, to the rear in the paper packaging material conveyance (supply) direction, and from then on, the push mechanism 59 of the magazine pusher 58 is used to Paper packaging materials 2 are fed one by one to a box filling machine.

Next, a first embodiment of the paper packaging material unpacking device 1 applied to the paper packaging material supplying device 51 of FIG. 1 will be described. The packing material 3 to be packed will be explained using FIG. 10. FIG. 10a is a front view of a package 5 in which stacked paper packaging materials 2 are packed with a packing material 3, FIG. 10b is a left side view thereof, and FIG. 10c is a plan view thereof. The paper packaging material 2 of this embodiment is folded from the left and right when viewed from the front in FIG. 10a, and has a rectangular shape that is elongated in the vertical direction and short in the left and right directions, for example, when viewed from the left in FIG. 10. . A plurality of folded paper packaging materials 2 are stacked one on top of the other in the thickness direction, and the entire paper packaging material 2 forms a rectangular parallelepiped shape. The packaging material 3 used in this embodiment has a square cross section that continuously covers four sides excluding the top and bottom surfaces of the entire paper packaging material 2 which forms a rectangular parallelepiped in a superimposed state, and has an opening-shaped cross section inside thereof. Paper packaging materials 2 in a stacked state are relatively tightly housed. Therefore, the packaging body 5 (packing form) in which a plurality of stacked paper packaging materials 2 are packed with the packaging material 3 also forms a rectangular parallelepiped, and the top and bottom surfaces of the package 5 are made up of stacked paper packaging materials 3. The packaging material 2 is opened to form an open surface 6.

In addition, as shown in FIG. 10b, the packaging material 3 for packaging the stacked paper packaging materials 2 has a packaging mark on the lower end portions of the surfaces located on both sides in the packaging material stacking direction, that is, the left and right surfaces in FIG. 10a. A notch 7 communicating with the lower surface constituting the open surface 6 of the material package 5 is provided, and the paper packaging material 2 at both ends in the overlapping direction is exposed at this notch 7. Although not essential, the stacked paper packaging material 2 is also exposed at the lower end of the left side of FIG. 10b, which is one side in the stacking direction of the packaging materials. Note that the folded form of the paper packaging material 2 is not necessarily the simple shape described above. Further, in this embodiment, the upper surface of the packaging material 3 does not need to be open to the paper packaging materials 2 that are housed in a stacked state. In other words, in the case of a packaging material 3 having a cross-section shaped like the letter ``mouth'', it is sufficient to wrap and regulate the overlapping paper packaging material 2 with the four sides that make up the ``mouth'' shape; One surface from which the paper packaging material 2 is taken out, in this embodiment, the lower surface may be open. The lower surface of the package 5 constituting the open surface 6 is mounted on (or faces) the upper surface of a guide rail 55 which is a transport path. Furthermore, similar structural requirements are required when the package 5 has a cubic shape.

FIG. 11 schematically shows a paper packaging material unpacking device 1 according to the first embodiment that removes the packaging material 3 from the packaging material package 5 of FIG. 11a is a front view of the apparatus including the packaging material package 5, FIG. 11b is a right side view thereof, and FIG. 11c is a plan view thereof. In the following explanatory diagrams of the operation of the paper packaging material unpacking device 1, a partial view a is a front view and a partial view b is a right side view. The paper packaging material unpacking device 1 of this embodiment applies pressure in the packaging material stacking direction to stack the paper packaging materials 2 at both ends in the packaging material stacking direction exposed through the notch part 7 of the packaging material 3. A pressing mechanism 11 is provided to press the paper packaging material 2 in a mated state. Specifically, the pressing part 12 that can be inserted into the notch 7 of the packaging material 3 is pressed from both sides of the overlapping paper packaging materials 2 in the overlapping direction using a pressing mechanism 11 such as a well-known linear motion mechanism. Press. As will be described later, this pressing mechanism 11 holds down the packaging material 3 so that it does not move together with the paper packaging material 2 when the packaging material 3 is pulled upwards in FIG. It's meant to be kept on.

Moreover, this paper packaging material unpacking device 1 is used to remove the packaging material 3 from one side of a rectangular parallelepiped perpendicular to the open surface (lower surface) 6 of the packaging body 5, specifically from a direction opposite to the right side in FIG. 11b. It includes an adsorption mechanism 13 that adsorbs the surface. Specifically, a total of six suction cup-shaped suction parts 14, two rows up and down in FIG. 11b and three rows in the horizontal direction in FIG. 11c, are pressed against the right side surface of the package 5 shown in FIG. 11b from the opposite direction. Attach it to the right side of the package 5. At the time of suction, the suction force may be increased by pressing the suction cup-shaped suction part 14 against the right side surface of the package 5 and then sucking the air inside the suction cup. Furthermore, this paper packaging material unpacking device 1 is configured to move the suction part 14 of the suction mechanism 13 in the vertical direction in FIG. A moving mechanism 15 is provided. In this embodiment, a separate ejection movement mechanism is further connected to the movement mechanism 15, so that the removed packaging material 3 can be moved (ejected) to the outside of the guide rail 55 as described later. It is composed of In addition, each of these mechanisms is designed to avoid interference with the transportation of the packaging materials 5 or stacked paper packaging materials 2 conveyed on the guide rail 55, at least during transportation. It is configured to be retracted, and this retracted position is the original position.

FIG. 11 shows that the pressing part 12 of the pressing mechanism 11 of the paper packaging material unpacking device 1 of this embodiment is pressed against the paper packaging materials 2 at both ends in the stacking direction, so that the paper packaging materials 2 in the stacked state are overlapped. It shows a state in which it is pressed in the mating direction and the suction part 14 of the suction mechanism 13 is suctioned to the right side (outer surface) of the packaging material 3 in FIG. . From this state, as shown in FIG. 12, the moving mechanism 15 moves the suction section 14 of the suction mechanism 13 in a direction facing the lower surface, which is the open surface 6, of the package 5, that is, upward. As a result, the stacked paper packaging materials 2 pressed in the stacking direction by the pressing mechanism 11 remain in place, and only the packaging materials 3 sucked by the suction part 14 of the suction mechanism 13 move upward. The paper packaging material 2 is then removed from the paper packaging material 2, and the remaining paper packaging material 2 is taken out onto the guide rail 55 in an overlapping state. After the stacked paper packaging materials 2 are taken out in this way, the unpacked paper packaging materials 2 in the stacked state are transported as shown in FIGS. 5 to 9 described above. Further, the removed packaging material 3 is moved (ejected) to the outside of the guide rail 55 by a separate ejection moving mechanism.

In this way, in the paper packaging material unpacking device 1 of this embodiment, the pressing mechanism 11 presses the stacked paper packaging materials 2 in the packaging material stacking direction, and in this state, the suction mechanism 13 unpacks the paper packaging materials 2. If the outer surface of the packaging material 3 perpendicular to the open surface 6 of the body 5 is suctioned and the moving mechanism 15 moves the suction part 14 of the suction mechanism 13 in the direction facing the open surface 6 of the packaging body 5, the packaging material The packaging material 3 can be removed from the stacked paper packaging material 2 housed inside the paper packaging material 3. Therefore, it is possible to unpack the package 5 of the paper packaging materials 2 packed in the packaging material 3 in a stacked state and take out the paper packaging materials 2 in the stacked state.
In addition, by mounting the open surface 6 of the package 5 on the upper surface of the guide rail 55 (conveyance path) that conveys the paper packaging materials 2 in a stacked state, or placing them opposite to each other, the paper packaging materials 2 in the stacked state can be removed. The paper packaging material 2 can be conveyed as is on the guide rail 55.

Next, a second embodiment of the paper packaging material unpacking device 1 applied to the paper packaging material supplying device 51 of FIG. 1 will be described. The packing material 3 to be packed will be explained using FIG. 13. FIG. 13a is a front view of a packaging material package 5 in which overlapping paper packaging materials 2 are packed with a packaging material 3 and a binding material 4, FIG. 13b is a left side view thereof, and FIG. 13c is a plan view thereof. It is. The folded state and stacked state of the paper packaging material 2 of this embodiment are the same as those described using FIG. 10. The packaging material 3 used in this embodiment has a U-shaped cross section that continuously covers three sides of the entire paper packaging material 2, which forms a rectangular parallelepiped in a stacked state, excluding the top and bottom surfaces and the left side in FIG. 13b. The overlapping paper packaging material 2 is relatively tightly accommodated therein, and the periphery thereof, specifically, the four sides of the rectangular parallelepiped excluding the top and bottom sides are continuously connected to at least a part of each of those sides. The packaging material 3 is covered with a binding material 4 that covers the packaging material 3, and the whole is bound together. The binding material 4 is made of, for example, a vinyl band. Therefore, the package 5 (packing form) in which a plurality of stacked paper packaging materials 2 are packed with the packing material 3 and the binding material 4 also forms a rectangular parallelepiped, and is in a stacked state in which the stacked paper packaging materials 2 are accommodated on two sides, the top and bottom. The paper packaging material 2 is opened to form an open surface 6.

In addition, as shown in FIG. 13b, the packaging material 3 for packaging the stacked paper packaging materials 2 has a packaging mark on the lower end portions of the surfaces located on both sides in the packaging material stacking direction, that is, the left and right surfaces in FIG. 13a. A notch 7 communicating with the lower surface constituting the open surface 6 of the material package 5 is provided, and the paper packaging material 2 at both ends in the overlapping direction is exposed at this notch 7. Further, in this embodiment as well, the upper surface of the packaging material 3 does not need to be open to the stacked paper packaging materials 2 accommodated therein. In other words, in the case of the packaging material 3 having a U-shaped cross section, it is sufficient to restrict the paper packaging material 2 by covering the paper packaging material 2 from both sides in the overlapping direction with two opposing sides of the three surfaces forming the U-shape. Then, the entire packaging is carried out by covering four sides except the top and bottom sides with the binding material 4, and one side from which the stacked paper packaging materials 2 are taken out, which is the bottom side in this embodiment, may be left open. Therefore, for example, the top surface of the package 5 may be covered with the binding material 4. The lower surface of the package 5 constituting the open surface 6 is mounted on (or faces) the upper surface of a guide rail 55 which is a transport path. That is, the binding material 4 is also a part of the packaging material 3. Furthermore, similar structural requirements are required when the package 5 has a cubic shape.

FIG. 14 schematically shows a paper packaging material unpacking device 1 according to the second embodiment, which removes the packaging material 3 from the packaging material package 5 of FIG. 13 and takes out the paper packaging materials 2 stored therein in an overlapping state. 14a is a front view of the apparatus including the packaging material package 5, FIG. 14b is a right side view thereof, and FIG. 14c is a plan view thereof. In the following explanatory diagrams of the operation of the paper packaging material unpacking device 1, a partial view a is a front view and a partial view b is a right side view. The paper packaging material unpacking device 1 of this embodiment has the main components of the paper packaging material unpacking device 1 of the first embodiment shown in FIG. At least two opposing vertical faces of the four covered faces (two opposing vertical faces), specifically, the left and right side faces in FIG. A restraining mechanism 16 that is brought into contact with and separated from the body 5 is provided.

This holding mechanism 16 has a holding part 17 in the shape of a solid round bar that comes into contact with the upper end of the left and right sides of the package 5 in FIG. 14a, and this holding part 17 is moved by a moving mechanism such as a linear motion mechanism as shown in FIG. It is movable in the vertical direction. Further, in this embodiment, the suction section 14 of the suction mechanism 13 can also suction the outer surface of the binding material 4. In this embodiment as well, a separate discharge moving mechanism is connected to the moving mechanism 15 that moves the suction part 14 of the suction mechanism 13, and the packaging material 3 removed as described below is transferred to the outside of the guide rail 55. It is configured so that it can be moved (ejected) to In addition, each mechanism of the paper packaging material unpacking device 1 of this embodiment is arranged so as not to interfere with the transportation of the packaging material pack 5 or the stacked paper packaging materials 2 being transported on the guide rail 55. , is configured to be retracted from the transport path at least during transport, and this retracted position is taken as the original position.

Next, FIG. 15 shows a flowchart of arithmetic processing executed in a control device (not shown) in order to unpack the packaging material package 5 with the paper packaging material unpacking device 1 of this embodiment. This control device includes, for example, a computer system such as a programmable control unit. As is well known, in addition to high arithmetic processing functions, computer systems are equipped with storage devices that store programs and data, and input/output devices that exchange signals with various sensors and switches. This arithmetic processing is executed, for example, when the packaging material package 5 is fed into the paper packaging material unpacking device 1. First, in step S1, the restraining part 17 of the restraining mechanism 16 is moved vertically to the opposite side of the packaging material 5. Two surfaces, in this case, are brought into contact with the upper ends of the left and right sides in FIG. 14a. This suppressing portion 17 may be arranged near the upper ends of the left and right sides so as to stand by slightly above the upper ends.

Next, the process moves to step S2, and the outer surface of the binding material 4 is suctioned by the suction part 14 of the suction mechanism 13.
Next, in step S3, the moving mechanism 15 moves the suction section 14 of the suction mechanism 13 upward.
Next, the process moves to step S4, and it is determined whether or not the upward movement by the moving mechanism 15 is completed. If the upward movement is completed, the process moves to step S5, and if not, the process moves to step S3. to move to.
In step S5, suction by the suction unit 14 of the suction mechanism 13 is released.

Next, the process moves to step S6, and the pressing portions 12 of the restraining mechanism 16 press the paper packaging materials 2 at both ends in the stacking direction in the stacking direction to press the paper packaging materials 2 in the stacked state.
Next, in step S7, the moving mechanism 15 moves the suction section 14 of the suction mechanism 13 downward.
Next, the process moves to step S8, and it is determined whether or not the downward movement by the moving mechanism 15 has been completed. If the upward movement has been completed, the process moves to step S9, and if not, the process moves to step S7. to move to.
In step S9, the suction unit 14 of the suction mechanism 13 suctions the outer surface of the packaging material 3 and the outer surface of the binding material 4 at the same time.

Next, the process moves to step S10, and the restraining portion 17 of the restraining mechanism 16 is retracted upward.
Next, the process moves to step S11, and the suction part 14 of the suction mechanism 13 is moved upward by the moving mechanism 15.
Next, the process moves to step S12, and it is determined whether or not the upward movement by the moving mechanism 15 is completed. If the upward movement is completed, the process moves to step S13, and if not, the process moves to step S11. to move to.
In step S13, the suction section 14 of the suction mechanism 13 is moved by the discharge moving mechanism so that the removed packaging material 3 and binding material 4 are moved to the outside of the guide rail 55.

Next, the process moves to step S14, and the suction by the suction unit 14 of the suction mechanism 13 is released.
Next, the process moves to step S15, where all the mechanisms of the paper packaging material unpacking device 1 are returned to their original positions, and then the process returns.
FIG. 14 shows that the restraining part 17 of the restraining mechanism 16 of the paper packaging material unpacking device 1 of this embodiment is brought into contact with the upper ends of two opposing vertical surfaces (the left and right sides in FIG. 14a) of the package 5, and is suctioned. 14B shows a state in which the suction part 14 of the mechanism 13 is suctioned to the right side (outer surface) of the binding material 4 in FIG. From this state, as shown in FIG. 16, the moving mechanism 15 moves the suction part 14 of the suction mechanism 13 in a direction facing the lower surface, which is the open surface 6, of the package 5, that is, upward. As a result, the paper packaging material 2 which is overlapped with the packaging material 3 whose holding part 17 of the holding mechanism 16 is in contact with the upper ends of the left and right sides remains in place, and is adsorbed by the suction part 14 of the suction mechanism 13. Only the binding material 4 that is in place is moved upwards and lifted off each side of the packaging material 3. In this state, the suction by the suction part 14 of the suction mechanism 13 is released, and in this state, the suction part 14 of the suction mechanism 13 is moved downward by the moving mechanism 15, and before and after this, the pressing part 12 of the pressing mechanism 11 is moved downward. The stacked paper packaging materials 2 are pressed in the stacking direction by pressing against the paper packaging materials 2 at both ends in the stacking direction.

Next, the suction part 14 of the suction mechanism 13 is pressed against the right side surface of the package 5 in FIG. 17b to simultaneously suction the right side surface (outer surface) of the packaging material 3 and the right side surface (outer surface) of the binding material 4. From this state, as shown in FIG. 18, for example, the restraining part 17 of the restraining mechanism 16 is retracted upward, and in this state, the moving mechanism 15 moves the suction part 14 of the suction mechanism 13 to the open surface 6 of the package 5. Move in the direction opposite the bottom surface, that is, upward. As a result, only the stacked paper packaging materials 2 pressed in the stacking direction by the pressing mechanism 11 remain in place, and the binding material 4 and the packaging material 3 that are sucked by the suction part 14 of the suction mechanism 13 are left in place. is moved upward and removed from the paper packaging material 2, and the remaining paper packaging materials 2 are taken out onto the guide rail 55 in an overlapping state. After the stacked paper packaging materials 2 are taken out in this way, the unpacked paper packaging materials 2 in the stacked state are transported as shown in FIGS. 5 to 9 described above. Further, the removed packaging materials 3 are individually moved (ejected) to the outside of the guide rail 55 by the ejection moving mechanism. Note that the suppressing portion 17 of the suppressing mechanism 16 may be moved upward at the same time as the suction portion 14 of the suction mechanism 13.

According to the paper unpacking device 1 of this embodiment, in addition to the effects of the paper unpacking device 1 of the first embodiment, the four sides of the rectangular parallelepiped adjacent to the open surface 6 of the package 5 are When the packaging material 3 is covered with a binding material 4 that covers at least a portion of each of the surfaces, at least two of the four surfaces opposite to the open surface 6 of the packaging body 5 are covered. A restraining mechanism 16 is provided to be placed in contact with and separated from the packaging body 5, and the suction part 14 of the suction mechanism 13 can also adsorb the outer surface of the binding material 4, so that the binding material 4 is first attached to the packaging material 3. The paper packaging material 2 can be taken out in an overlapping state by shifting the binding material 4 and the packaging material 3 from each other and then removing the binding material 4 and packaging material 3.
Further, with the restraining part 17 of the restraining mechanism 16 in contact with the two vertically opposing surfaces of the package 5 and the outer surface of the binding material 4 being attracted to the suction part 14 of the suction mechanism 13, the moving mechanism 15 moves the open surface 6 The suction part 14 of the suction mechanism 13 is moved in the direction away from the open surface, and with the suction by the suction part 14 of the suction mechanism 13 released, the suction part 14 of the suction mechanism 13 is moved in the direction approaching the open surface by the moving mechanism 15. The pressing part 17 of the pressing mechanism 16 is separated from the package 5, and the paper packaging materials 2 at both ends in the stacking direction are pressed in the stacking direction by the pressing part 12 of the pressing mechanism 11. With the outer surface being attracted to the suction part 14 of the suction mechanism 13, the suction part 14 of the suction mechanism 13 is moved by the moving mechanism 15 in a direction away from the open surface 6. As a result, the binding material 4 is first lifted up from the packaging body 5, then the packaging material 3 and the binding material 4 are removed, and the stacked paper packaging material 2 is taken out.

Furthermore, when the binding material 4 and the packaging material 3 are removed by the suction part 14 of the suction mechanism 13 and the moving mechanism 15, the binding material 4 and the packaging material 3 are simultaneously suctioned by the suction part 14, so that the binding material 4 and the packaging material 3 are stacked together. It can be reliably removed from the packaging material 2.
Although the paper packaging material unpacking device 1 according to the embodiment has been described above, the present invention is not limited to the configuration described in the above embodiment, and various changes can be made within the scope of the gist of the present invention. It is possible. For example, in the above embodiment, as shown in FIGS. 10b and 14b, a configuration has been described in which the suction part 14 of the suction mechanism 13 is arranged only on the right side of the package 5, but the layout of the suction part 14 is The present invention is not limited to this, and for example, as shown in FIG. 19, the suction portions 14 of the suction mechanism 13 may be arranged so as to face all four sides of the package 5 excluding the top and bottom surfaces. Similarly, since the purpose of the pressing part 12 of the pressing mechanism 11 is to press the paper packaging materials 2 at both ends in the stacking direction in the stacking direction to press them, for example, the bottom end of the paper packaging material 2 It is not essential to pressurize only.

Further, in the above embodiment, only an example in which the packaging material package 5 packed with the packaging material 3 is unpacked with a plurality (many) of folded paper packaging materials 2 stacked one on top of the other in the thickness direction has been described. However, the package 5 to be unpacked by the unpacking device 1 of the present invention is not limited to the package 5 of the paper packaging material 2. Since the folded paper packaging material 2 is a so-called sheet member having the same size and the same shape, it is a package 5 in which similar sheet members are stacked and packed using the packing material 3. If so, the package 5 can be unpacked using the unpacking device of the present invention. Examples of such sheet members include paper packaging materials such as paper beverage cartons, and flexible packaging materials such as refill pouches.

1 Paper packaging material (sheet material) unpacking device 2 Paper packaging material 3 Packing material 4 Binding material (packing material)
5 Packing body 6 Open surface 7 Notch part (exposed part)
11 Pressing mechanism 12 Pressing part 13 Adsorption mechanism 14 Adsorption part 15 Moving mechanism 16 Holding mechanism 17 Holding part 55 Guide rail (transport route)

Claims (5)

A sheet member unpacking device for unpacking a package in which a plurality of sheet members stacked in the thickness direction are packed with packing material and the entire package forms a rectangular parallelepiped or a cube to take out the stacked sheet members. There it is,
The package has an open surface in which the stacked sheet members are released from the packaging material on at least one surface of the rectangular parallelepiped or cube that is perpendicular to the direction in which the sheet members are stacked, and the sheet members are overlapped. A part of the leaf member at both ends of the direction is exposed from the packaging material,
a pressing mechanism that presses the exposed sheet members at both ends in the sheet member overlapping direction in the sheet member overlapping direction to press the sheet members in the stacked state;
a suction mechanism that suctions the outer surface of the packaging material from a direction opposite to at least one surface of the rectangular parallelepiped or cube that is perpendicular to the open surface of the packaging body;
A sheet member unpacking device comprising: a moving mechanism that moves a suction part of the suction mechanism in a direction facing an open surface of the package. 2. The sheet member unpacking device according to claim 1, wherein the open surface of the package is disposed on or facing an upper surface of a conveyance path for conveying the stacked sheet members. The packaging material is covered with a binding material that continuously covers four faces of the rectangular parallelepiped or cube adjacent to the open surface and covers at least a portion of each of those faces,
comprising a restraining mechanism that is disposed on the opposite side of the open surface of the package at a position on at least two opposing sides of the four surfaces and is brought into contact with and separated from the package;
The sheet member unpacking device according to claim 1 or 2, wherein the suction section of the suction mechanism is capable of suctioning also to the outer surface of the binding material. The restraining part of the restraining mechanism is brought into contact with at least the sides opposite to the open surface of the two surfaces, or is placed in the vicinity thereof, and the outer surface of the binding material is attracted to the suction part of the suction mechanism. In this state, the suction part of the suction mechanism is moved in a direction away from the open surface by the moving mechanism, and when the binding material is released from suction by the suction part of the suction mechanism, the moving mechanism approaches the open surface. The suction section of the suction mechanism is moved in the direction of the stacking direction, the holding section of the holding mechanism is separated from the packaging material package, and the pressing section of the pressing mechanism presses the sheet members at both ends of the stacking direction in the stacking direction. and configured such that the suction part of the suction mechanism is moved in a direction away from the open surface by the moving mechanism while at least the outer surface of the packaging material is suctioned to the suction part of the suction mechanism. The sheet member unpacking device according to claim 3, characterized in that: 5. A structure according to claim 4, characterized in that when the outer surface of the packaging material is adsorbed by the adsorption part of the adsorption mechanism, the outer surface of the binding material is also adsorbed by the adsorption part of the adsorption mechanism. Single wafer material unpacking device.

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