JP7288259B2 - packaging equipment - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act March 9, 2020 At Pigeon Manufacturing Hyogo Co., Ltd., Orion Machine Industry Co., Ltd. sells packaging equipment to Pigeon Manufacturing Hyogo Co., Ltd.

TECHNICAL FIELD The present invention relates to a packaging device for packaging a group of articles accumulated in a predetermined number in an outer bag.

As a prior art of the packaging apparatus described above, Patent Literature 1 describes a device for carrying an object to be packaged into a wrapper. The device for carrying an object to be packaged into a package described in Patent Document 1 conveys an object to be packaged from a conveyer into a primary buffer mechanism consisting of a guide base and a shut plate, and is pivoted by a first direct-acting motor. After rotating and hanging down the primary buffer mechanism to a position along the vertical line with the support shaft as a fulcrum, the shut plate is opened to put the object to be packaged into the wrapper suspended by the clamp. Further, in the apparatus for carrying in a packaged item, after receiving the packaged item between the wall plate and the clamping plate, the clamping plate can be lowered to guide the packaged item to the bottom of the wrapper.

JP 2009-18820 A

However, the above-described package carrying-in apparatus described in Patent Document 1 does not take into consideration the packaging of a predetermined number of stacked items, and cannot be used. In other words, when packaging a group of articles accumulated in a predetermined number in a packaging bag, it is possible to pack the maximum number of articles (larger number of articles that can be packed) in one packaging bag, and the size after packaging It is necessary to improve the packaging efficiency by downsizing the packaging, etc., and the packaging object carrying-in device described in Patent Document 1 cannot meet this requirement and cannot be adopted.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a packaging apparatus capable of improving packaging efficiency when packaging a group of articles accumulated in a predetermined number in an outer bag. do.

As a means for solving the above-mentioned problems, the invention of claim 1 is a packaging apparatus for packaging a group of articles, in which a predetermined number of articles are accumulated, in an outer bag, wherein each article is packed while conveying the group of articles. a bulky-reducing conveying means for suppressing bulkiness by shifting forward and backward in the conveying direction; packaging means for storing in an outer bag, wherein the bulk reduction conveying means includes a conveying member for conveying the group of articles, a stopper member for stopping the group of articles conveyed by the conveying member at a predetermined position; , wherein the conveying portion of the conveying member and the stopper portion of the stopper member are V-shaped in side view .
According to a second aspect of the present invention, there is provided a packaging apparatus for packaging a group of articles, in which a predetermined number of articles are accumulated, in an outer bag, wherein the bulk of each article is reduced by shifting each article forward and backward in the conveying direction while conveying the group of articles. a bulky-reducing conveying means for keeping low, and a packaging means for receiving the group of articles whose bulkiness has been reduced by the bulky-reducing conveying means, and rotating the group of articles to accommodate the group of articles in the outer bag by its own weight; wherein the packaging means comprises a holding table configured to be rotatable and holding the group of articles, the holding table being provided in front of the conveying direction of the group of articles, and on the holding table A holding member configured to be retractable for restricting the movement of the group of articles, and a holding member configured to be vertically movable with respect to the holding table for holding down the group of articles on the holding table from above. And, it is characterized by having.
In the inventions of claims 1 and 2 , the bulkiness of the group of articles can be kept low while being conveyed by the bulky-reducing conveying means, so that the group of articles can be easily packaged in an outer bag of a predetermined size. The number of articles that can be packed in the outer bag can be increased, the size after packing can be made compact, and the packing efficiency can be improved. In addition, since the bulkiness of the group of articles can be kept low while the group of articles is being transported, the time for packaging the group of articles can be shortened, and productivity can be improved. In addition, in the invention of claim 1, a group of articles whose bulkiness is kept low is received by the packaging means, and the group of articles is accommodated in the outer bag by its own weight by rotating, so that the space in the vertical direction is effectively utilized. It is possible to reduce the planar space occupied by the device and improve space efficiency. Furthermore, in the first aspect of the invention, the conveying portion of the conveying member and the stopper portion of the stopper member are configured to have a V shape when viewed from the side. It is possible to set at least the maximum distance between the conveying portion at the position where the stopper member is located and the stopper portion of the stopper member to be larger than the total length of the article group in the conveying direction. As a result, when the group of articles is conveyed by the conveying section of the conveying member, each article in the upper layer of the group of articles is conveyed while sliding slightly forward in the conveying direction, and finally, the conveying section of the conveying member conveys the group of articles. When the group of articles moves backward, the group of articles slides forward in the conveying direction by a large amount of slide due to the inertia of each article as it moves to the upper layer, and is stopped by the stopper portion of the stopper member. can be kept low. Furthermore, in the invention of claim 2, the packaging means is configured to be rotatable and includes a holding stand for holding the group of articles, and the holding stand is provided in front of the group of articles in the conveying direction to hold the group of articles. A holding member configured to be retractable for regulating the movement of the group of articles on the platform, and a holding member configured to be vertically movable with respect to the platform to hold down the group of articles on the platform from above. and have. In the initial stage, the holding table is maintained in a horizontal state, the holding member is in a protruding state, and the pressing member is positioned at the maximum position above the holding table. Subsequently, when a group of articles whose bulkiness is kept low is placed on the holding table by the conveying means, the movement of the articles is restricted by the projecting holding member, and the pressing member descends to the maximum from the initial position. Then, the article group is held by pressing the article group from above. Subsequently, at the timing when the holding table rotates until the front end in the conveying direction faces downward, the holding member is retracted and the pressing member returns to the initial position, so that the group of articles on the holding table is lifted onto the holding table by its own weight. slides down and is accommodated in the outer bag.

The invention according to claim 3 is characterized in that, in the invention according to claim 2 , the holding table is configured to be movable back and forth along the conveying direction.
In the third aspect of the invention, the front end of the holding table in the conveying direction can be brought as close to the opening end of the outer bag as possible.

The invention according to claim 4 is the invention according to claim 2 or 3 , wherein the holding base has a front end in the conveying direction that protrudes forward in the conveying direction, and is inserted into the outer bag from the opening end of the outer bag. A pair of claw portions are provided, and the pair of claw portions are configured to be able to approach and separate from each other.
In the fourth aspect of the invention, the pair of claws are inserted into the opening end of the outer bag in a state in which the claws are brought close to each other, and then the pair of claws are separated from each other, thereby closing the outer bag. It is possible to maximize the spread of the open end. As a result, it becomes easy for the group of articles to be accommodated in the outer bag by its own weight.

The invention according to claim 5 is the invention according to any one of claims 2 to 4 , further comprising air injection means for injecting air from a mounting surface of the holding table on which the group of articles is mounted. It is something to do.
In the fifth aspect of the present invention, after the front end of the holding table in the conveying direction is turned downward, the air is jetted from the placing surface of the holding table toward the group of articles, so that the air is ejected from the placing surface of the holding table. The frictional force between the group of articles and the mounting surface can be reduced, and the group of articles on the mounting surface of the holding table can smoothly slide down due to its own weight.

In the packaging apparatus according to the present invention, it is possible to improve packaging efficiency when packaging a group of articles accumulated in a predetermined number in an outer bag.

FIG. 1 is a plan view showing an overall image of a packaging device according to an embodiment of the invention. FIG. 2 is a schematic side view for explaining the bulk-reducing conveying means employed in the packaging apparatus according to the embodiment of the present invention. FIG. 3 is a schematic perspective view for explaining the second conveying means employed in the packaging device according to the embodiment of the present invention. FIG. 4 is a schematic side view showing step by step the operation of housing the group of packaging bags in the outer bag by the packaging means employed in the packaging apparatus according to the embodiment of the present invention. FIG. 5 is a schematic side view showing step by step the operation of housing the group of packaging bags in the outer bag by the packaging means employed in the packaging apparatus according to the embodiment of the present invention. FIG. 6 is a schematic side view showing step by step the operation of housing the group of packaging bags in the outer bag by the packaging means employed in the packaging apparatus according to the embodiment of the present invention. FIG. 7 is a schematic side view showing step by step the operation of housing the group of packaging bags in the outer bag by the packaging means employed in the packaging apparatus according to the embodiment of the present invention. FIG. 8 is a plan view of a group of packaging bags formed by stacking a predetermined number of packaging bags to be packaged in an outer bag by the packaging apparatus according to the embodiment of the present invention. FIG. 9 is a side view of a group of packaging bags formed by stacking a predetermined number of packaging bags to be packaged in an outer bag by the packaging apparatus according to the embodiment of the present invention.

A packaging device 1 according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 9. FIG.
As shown in FIGS. 1 and 7 to 9, the packaging device 1 according to the embodiment of the present invention is a packaging bag formed by stacking a predetermined number (25 in FIG. 9) of extremely thin packaging bags 2 (articles). It is for packaging the group 20 (goods group) in the outer bag 100 . As shown in FIGS. 8 and 9, the packaging bag 2 is formed in a substantially rectangular plane shape. The packaging bag 2 is provided with a sealing zipper portion 2A having a slight thickness at its longitudinal end.

As shown in FIGS. 1 to 3, the packaging device 1 according to the embodiment of the present invention conveys the packaging bag group 20 on the base 16 of the stacking device 15 along the conveying surface 28, while conveying each packaging bag 2. A bulky-reduced conveying means 5 for reducing the bulk by shifting it forward and backward in the conveying direction, a first conveying means 6 for conveying in a predetermined direction the packaging bag group 20 whose bulk is kept low by the bulky-reducing conveying means 5, A pair of second conveying means 7, 7 for conveying in a predetermined direction the group of adjacent packaging bags 20 conveyed by the first conveying means 6, and each packaging bag conveyed by the pair of second conveying means 7, 7 A pair of packaging means 8, 8 for receiving the groups 20, 20 and rotating to accommodate the groups 20, 20 in the respective outer bags 100, 100 (see FIG. 7) by their own weight, and the packaging means. and an air injection means 9 (see FIG. 4) for injecting air from the mounting surface of the packaging bag group 20 of the holding table 47 constituting the packaging bag group 8 .

As shown in FIG. 9, the group of packaging bags 20 arranged on the base 16 of the stacking device 15 includes a plurality of packaging bags 2 with their sealing chuck portions 2A positioned at one end in the longitudinal direction (FIG. 9). 5), and a group of packaging bags in which a plurality of (five in FIG. 9) are stacked with the sealing chuck portion 2A of the packaging bag 2 positioned at the other end in the longitudinal direction. are accumulated alternately.

As shown in FIG. 2, the bulk reduction conveying means 5 transports the predetermined number of packaging bags 20 shown in FIG. The packaging bag 2 is shifted forward and backward in the conveying direction to keep the bulk thereof low, and is conveyed onto the conveying table 35 constituting the first conveying means 6 . The direction in which the group of packaging bags 20 is conveyed by the bulky-reduction conveying means 5 is the same as the longitudinal direction of the group of packaging bags 20 . The bulk reduction conveying means 5 includes a conveying member 18 that conveys the group of packaging bags 20 from the base 16 of the stacking device 15 along a conveying surface 28, and the group of packaging bags 20 conveyed by the conveying member 18 as a first conveying unit. and a stopper member 19 for stopping at a predetermined position on the carriage 35 constituting the means 6 .

The conveying member 18 is configured by vertically providing a plurality of conveying rods 21 , 21 . A plurality of conveying rods 21, 21 (three in this embodiment) are vertically arranged at intervals along the width direction of the packaging bag group 20. As shown in FIG. Each conveying rod-shaped body 21 extends from the vicinity of the base end portion toward the rear side in the conveying direction with a slight inclination. It functions as a conveying section 24 that pushes and conveys the packaging bag group 20 by coming into contact with the portion (longitudinal end). The conveying portion 24 extends obliquely rearward in the conveying direction at an inclination angle α with respect to the vertical direction. The inclination angle α is set within a range of 2° to 5°. In this embodiment, the inclination angle α is set to 3°. Each conveying rod 21 is configured to be movable forward and backward along the conveying direction (longitudinal direction) of the packaging bag group 20 and to be vertically movable. The detailed operation of each transport bar 21 will be described later.

The stopper member 19 is configured by vertically providing a plurality of stopper rods 22 , 22 . The stopper rods 22, 22 are arranged in a plurality (three in the present embodiment) at intervals along the lateral direction of the packaging bag group 20 so as to face the respective conveying rods 21, 21 of the conveying member 18. , is installed vertically. Each stopper rod-shaped body 22 extends from near the center in the axial direction while being slightly bent toward the forward side in the conveying direction. It functions as a stopper portion 25 that abuts and stops at a predetermined position.

The stopper portion 25 extends obliquely forward in the conveying direction at an inclination angle β with respect to the vertical direction. The tilt angle β is set within a range of 25° to 35°. In this embodiment, the inclination angle β is set to 30°. In this way, the conveying portion 24 of each conveying rod 21 of the conveying member 18 and the stopper portion 25 of each stopper rod 22 of the stopper member 19 are V-shaped in side view. Each stopper rod 22 is movable along the transport direction, and is configured to appear and disappear at a predetermined position on the bottom wall portion 39 of the transport table 35 that constitutes the first transport means 6 . The detailed operation of each stopper bar 22 will be described later.

As shown in FIGS. 1 and 2, a conveying surface 28 extending along the conveying direction (longitudinal direction) of the group of packaging bags 20 is formed between the stacking device 15 and the first conveying means 6 . As shown in FIG. 1, a groove 30 is formed on the base 16 of the stacking device 15 so as to extend along the conveying direction of the group of packaging bags 20 (longitudinal direction of the group of packaging bags 20). A plurality of grooves 30 are formed at intervals along the lateral direction of the packaging bag group 20 . The conveying surface 28 is also formed with grooves 31 extending along the conveying direction of the group of packaging bags 20 (longitudinal direction of the group of packaging bags 20). A plurality of grooves 31 are formed at intervals along the lateral direction of the packaging bag group 20 . Furthermore, a groove portion 32 extending along the longitudinal direction of the group of packaging bags 20 is also formed in the bottom wall portion 39 of the conveying table 35 of the first conveying means 6, which will be described later. A plurality of grooves 32 are formed at intervals along the width direction of the packaging bag group 20 .

The bottom wall portion of the base 16 of the stacking device 15, the conveying surface 28, and the bottom wall portion 39 of the conveying table 35 of the first conveying means 6, which will be described later, are located on the same plane. The grooves 30 , 31 , and 32 provided on the base 16 of the stacking device 15 , the transport surface 28 and the transport table 35 of the first transport device 6 allow the packaging bag group 20 to move from the stacking device 15 to the first transport device 6 . In the grooves 30, 31 and 32, the tip ends of the conveying rods 21 and 21 of the conveying member 18 are movably connected. inserted. In addition, the ends of the stopper rods 22 of the stopper member 19 are movably inserted into the grooves 32 provided on the carrier table 35 of the first carrier device 6 .

The first conveying means 6 is arranged on an extension line of the conveying surface 28 in the conveying direction. The direction in which the group of packaging bags 20 is conveyed by the first conveying means 6 is substantially orthogonal to the direction in which the group of packaging bags 20 is conveyed by the bulky-reduction conveying means 5 . In other words, the conveying direction of the group of packaging bags 20 by the first conveying means 6 is substantially the same as the lateral direction of the packaging bag 2 . In the first conveying means 6, the conveying stand 35 for receiving and conveying the group of packaging bags 20 conveyed by the bulky-reducing conveying means 5 is positioned in a direction substantially orthogonal to the conveying direction of the group of packaging bags 20 by the bulky-reducing conveying means 5. A plurality of are arranged movably along the . The transport table 35 is configured to be movable along the lateral direction of the packaging bag group 20 . A plurality of carriages 35, 35 are provided along the moving direction. Each carrier 35 moves intermittently. The carriage 35 has a front wall portion 37 and a rear wall portion 38 which are arranged to face each other in the front and rear of the moving direction, and a bottom wall portion 39 which connects the lower ends of the front wall portion 37 and the rear wall portion 38 . It is formed in a U-shape when viewed from the side. A group of packaging bags 20 from the bulk reduction conveying means 5 is placed on the bottom wall portion 39 of each conveying table 35 .

Then, in a state in which the empty conveyor table 35 is stopped on the conveying direction extension line of the conveying surface 28 , the bulk reduction conveying means 5 transports the group of packaging bags 20 from the base table 16 of the stacking device 15 through the conveying surface 28 . It is conveyed onto the bottom wall portion 39 of the carriage 35 of the first conveying means 6 . Subsequently, each of the carriages 35, 35 moves a predetermined distance, and when the empty carriage 35 is again stopped on the extension line of the conveying direction of the conveying surface 28, the packaging bag group 20 is moved by the bulk reduction conveying means 5. The sheet is conveyed from the base 16 of the stacking device 15 onto the bottom wall portion 39 of the conveying table 35 of the first conveying means 6 via the conveying surface 28 . By repeating this operation (intermittent movement of the carriages 35 , 35 ), the group of packaging bags 20 on each carriage 35 is sequentially conveyed along the moving direction of each carriage 35 .

As shown in FIG. 3 , the second conveying means 7 is arranged at a predetermined position above the first conveying means 6 . The second conveying means 7 conveys the group of packaging bags 20 on the bottom wall portion 39 of the conveying table 35 constituting the first conveying means 6 to the packaging means 8 . A pair of the second conveying means 7 , 7 are provided so as to correspond to the adjacent carriages 35 , 35 of the first conveying means 6 . The pair of second conveying means 7, 7 simultaneously conveys the pair of packaging bag groups 20, 20 respectively placed on the adjacent conveying tables 35, 35 of the first conveying means 6 to the pair of packaging means 8, 8. It is something to do. The second conveying means 7 includes a plurality of conveying pushers 42 arranged at intervals along the moving direction of the conveying table 35 of the first conveying means 6 (conveying direction of the packaging bag group 20), and each conveying pusher 42. A plurality of height-restricting bar bodies 43 arranged above the packaging bag group 20 conveyed by the respective conveying pushers 42 are provided so as to be movable in synchronization with each other.

Each conveying pusher 42 is formed in the shape of a rod bent like a crank when viewed from the side, and is vertically provided from above. In this embodiment, two transport pushers 42 are arranged at intervals along the lateral direction of the packaging bag group 20 . Each transport pusher 42 can move up and down, and can advance and retreat along the transport direction to transport the group of packaging bags 20 placed on the transport table 35 of the first transport means 6 to the packaging means 8. . Also referring to FIG. 1 , the tip of each transport pusher 42 is movably inserted into a plurality of grooves 32 provided in the transport platform 35 of the first transport means 6 . As shown in FIG. 3, the height-restricting bar 43 is unitized by each of the transport pushers 42 and the drive bar 45 and operates in the same manner as the transport pushers 42 . The height-restricting bar 43 extends along the transport direction of the packaging bag group 20 (longitudinal direction of the packaging bag group 2) by the transport pushers 42. As shown in FIG. In this embodiment, two height-restricting rods 43 are arranged between the conveying pushers 42 and 42 at intervals in the lateral direction of the packaging bag group 20 .

Each height-restricting bar 43 extends forward in the conveying direction from a portion of each conveying pusher 42 that is positioned on the forward side in the conveying direction and is in contact with the rear end of the group of packaging bags 20 in the conveying direction. ing. When each conveying pusher 42 descends to the maximum and conveys the group of packaging bags 20 on the conveying table 35 of the first conveying means 6, each height restraining bar 43 is arranged to move the conveying table 35 of the first conveying means 6. is positioned at a predetermined height from the bottom wall portion 39 of the . In short, each height-restricting bar 43 is positioned so that each conveying pusher 42 descends to the maximum and conveys the packaging bag group 20 on the conveying table 35 of the first conveying means 6 . It is positioned slightly above the upper surface of the group 20 and moves forward in the same manner as each transport pusher 42 .

Then, each conveying pusher 42 descends together with each height restraining bar 43, and the part located on the forward side in the conveying direction of each conveying pusher 42 conveys the group of packaging bags 20 on the conveying platform 35 of the first conveying means 6. Each height restraining bar 43 is positioned above the packaging bag group 20 while contacting the direction rear end (longitudinal direction one end). After that, the transport pushers 42 move forward together with the height-restricting rods 43, so that the group of packaging bags 20 on the transport table 35 is transported to the packaging means 8. Return to position.

As shown in FIGS. 4 to 7, the packaging means 8 receives the packaging bag group 20 conveyed by the second conveying means 7, and rotates to move the packaging bag group 20 into the outer bag 100 by its own weight. It is intended to accommodate. A pair of packaging means 8 , 8 are provided corresponding to the pair of second conveying means 7 , 7 . The packaging means 8 is configured to be rotatable, and includes a holding base 47 that receives and holds the packaging bag group 20 conveyed by the second conveying means 7 . The holding table 47 is formed in a U-shape when viewed from the front and includes a bottom wall portion 49 having a rectangular shape when viewed from the top and a pair of side walls 50, 50 erected so as to face each other from both ends of the bottom wall portion 49 in the width direction. be. The upper surface of the bottom wall portion 49 of the holding base 47 functions as a mounting surface 52 on which the packaging bag group 20 is mounted. The holding table 47 has its longitudinal direction aligned with the longitudinal direction of the packaging bag group 20 , and its longitudinal direction is aligned with the transport direction of the packaging bag group 20 .

The holding table 47 is rotatable at a predetermined angle γ (see FIG. 5) about a rotating shaft 59 by a drive source (not shown) such as a motor so that the front end in the conveying direction faces downward from the initial horizontal state. Configured. The predetermined angle γ is set to an appropriate value within the range of 45° to 90°. In this embodiment, the predetermined angle γ is set to 60°. The holding table 47 is configured to be movable back and forth along the conveying direction (longitudinal direction) of the group of packaging bags 20 by a drive source 63 such as a cylinder. The mounting surface 52 of the holding table 47 when the holding table 47 is positioned horizontally and the upper surface of the bottom wall portion 39 of the transfer table 35 of the first transfer means 6 are positioned substantially on the same plane. ing.

The holding table 47 is provided with a retractable holding member 54 for restricting the movement of the packaging bag group 20 on the mounting surface 52 of the holding table 47 toward the front in the conveying direction. The holding member 54 is made of a substantially rectangular plate material when viewed from the front. The holding member 54 is configured to be vertically movable with respect to the holding table 47 by a drive source 60 such as a cylinder. Then, the holding member 54 descends to the maximum and protrudes above the mounting surface 52 of the holding table 47 , so that the group of packaging bags 20 conveyed by the respective conveying pushers 42 of the second conveying means 7 is moved to the holding table 47 . In addition, when the holding base 47 rotates from the horizontal state, the sliding of the holding base 47 on the mounting surface 52 due to the weight of the packaging bag group 20 is prevented. can be regulated.

Referring also to FIG. 3, the holding table 47 has a holding table for holding down the packaging bag group 20 conveyed onto the mounting surface 52 of the holding table 47 by the respective conveying pushers 42 of the second conveying means 7 from above. Pressing members 55, 55 configured to move up and down with respect to 47 are provided. A plurality of pressing members 55 , 55 are provided at intervals along the lateral direction of the packaging bag group 20 on the mounting surface 52 of the holding table 47 . Two pressing members 55, 55 are provided in this embodiment. The pressing member 55 is formed in a thin plate shape. The pressing member 55 is arranged in an upright state. The overall length of the pressing member 55 is substantially the same as the overall length of the holding base 47 along the longitudinal direction.

The pressing member 55 has substantially the same height except for the rear end portion in the transport direction. extends downwards from the front. The pressing member 55 is configured to be vertically movable with respect to the holding table 47 by a drive source 61 such as a cylinder. When the pressing members 55, 55 are lowered to the maximum with respect to the holding table 47, they are lowered to a position where they can press the packaging bag group 20 on the mounting surface 52 of the holding table 47 from above, and are raised to the maximum. It is configured to rise to a position separated from the upper surface of the group of packaging bags 20 on the mounting surface 52 of the holding table 47 when it is closed. It should be noted that the height of the holding table 47 from the mounting surface 52 when the pressing member 55 is raised to the maximum is equal to the height of each height suppressing bar 43 of the second conveying means 7 and the conveying table of the first conveying means 7. It is substantially the same as the height from the bottom wall portion 39 of 35 .

The holding table 47 is provided with an air injection means 9 for injecting air from the mounting surface 52 which is the upper surface of the bottom wall portion 49 . The air injection means 9 includes a plurality of air nozzles 57 for injecting air, and an air supply source (not shown) connected to each air nozzle 57 via an air supply pipe (not shown). Each air nozzle 57 is arranged in the bottom wall portion 49 of the holding table 47 , and air from the air nozzles 57 is jetted upward from the mounting surface 52 of the holding table 47 . Each air nozzle 57 is arranged behind the position of the holding member 54 in the transport direction in the longitudinal direction of the holding table 47 . In short, each air nozzle 57 is arranged at a position where air is jetted toward the lower surface of the group of packaging bags 20 on the mounting surface 52 of the holding table 47 .

A pair of upper and lower claw portions 65, 65 projecting forward in the transport direction are provided at the front end of the holding table 47 in the transport direction. A pair of upper and lower claw portions 65, 65 are configured to be able to approach and separate from each other by driving sources 62, 62 such as cylinders. The claw portion 65 is formed in a substantially rectangular plate shape in a plan view. The width of the claw portion 65 is set to be slightly smaller than the width of the outer bag 100, and the pair of claw portions 65, 65 are inserted inside the outer bag 100 from the open end. With the pair of claws 65, 65 in the closest proximity to each other, the holding table 47 as a whole advances forward in the conveying direction, so that the pair of claws 65, 65 move from the opening end of the outer bag 100 to the outer bag 100. inserted inside. Subsequently, by maximally separating the pair of claw portions 65, 65 from each other, the open end of the outer bag 100 can be opened as wide as possible. In this state, the packaging bag group 20 on the mounting surface 52 of the bottom wall portion of the holding base 47 slides down due to its own weight and is housed in the outer bag 100 .

Each outer bag 100, 100 is supported by a pair of sealing devices 70, 70, respectively. A pair of sealing devices 70 , 70 are provided corresponding to the pair of packaging means 8 , 8 , although the sealing device 70 will not be described in detail here. The sealing device 70 is configured to seal the opening end at the timing when the packaging bag group 20 is accommodated in the outer bag 100 by the packaging means 8 .

Next, the action of the packaging device 1 according to the embodiment of the present invention will be described with reference to the drawings as appropriate.
First, as shown in FIGS. 1 and 2, when a predetermined number of packaging bags 20 are placed on the base 16 of the stacking device 15 in a stacked state, the conveying member constituting the bulk-reduced conveying means 5 is placed. Each of the 18 conveying rods 21 descends and abuts on the rear end portion (longitudinal end portion) of the group of packaging bags 20 in the conveying direction. Subsequently, each of the conveying rods 21 of the conveying member 18 moves forward, so that the group of packaging bags 20 is pushed from the base 16 through the conveying surface 28 toward the conveying table 35 of the first conveying means 6. transported by

At this time, since the conveying portion 24 of each conveying rod-shaped body 21 of the conveying member 18 is inclined rearward in the conveying direction at an inclination angle α with respect to the vertical direction, the packaging bag group 20 is conveyed by each conveying member. When conveyed by the conveying portion 24 of the rod-shaped body 21, the upper packaging bags 2, 2 of the group of packaging bags 20 are conveyed while sliding slightly forward in the conveying direction. Substantially at the same time, each stopper bar 22 of the stopper member 19 moves from its initial position and stops at a predetermined position on the bottom wall portion 39 of the carrier 35 of the first carrier means 6 . Subsequently, each conveying bar 21 of the conveying member 18 conveys the group of packaging bags 20 onto the bottom wall portion 39 of the conveying table 35 of the first conveying means 6 via the conveying surface 28, and then ascends. It will retreat and return to its initial position.

Therefore, since the conveying portion 24 of each conveying rod-shaped member 21 of the conveying member 18 and the stopper portion 25 of each stopper rod-shaped member 22 of the stopper member 19 are V-shaped in side view, each conveying rod-shaped member A conveying portion 24 at a position where the body 21 conveys the packaging bag group 20 and retreats, and a stopper portion 25 at a position where each stopper bar 22 stops at a predetermined position on the conveying table 35 of the first conveying means 6. is set to be larger than the total length of the packaging bag group 20 in the longitudinal direction. As a result, when the group of packaging bags 20 is conveyed by the conveying portion 24 of each of the conveying rods 21, each of the packaging bags 2, 2 in the upper layer of the group of packaging bags 20 is conveyed while sliding (shifting) slightly forward in the conveying direction. Finally, when the group of packaging bags 20 is conveyed by the conveying portion 24 of each of the conveying rods 21 and retreats, the group of packaging bags 20 is conveyed by inertia as each of the packaging bags 2 moves to the upper layer. While sliding (shifting) forward in the direction by a large slide amount, the posture is slightly collapsed forward in the conveying direction, and stopped by the stopper portion 25 of the stopper member 19 . As a result, the packaging bag group 20 is transferred from the base 16 of the stacking device 15 to the conveyor 35 (bottom wall portion 39) of the first conveyor 6 via the conveyor surface 28 by the bulk reduction conveyor 5. It is conveyed in a state in which the bulkiness is kept low.

In short, in the packaging bag group 20, as shown in FIG. 9, since the sealing chuck portion 2A is provided at one end in the longitudinal direction of each packaging bag 2, the sealing chuck portions 2A of the packaging bags 2 overlap each other. There is a risk that the overall height will be locally high, in other words, bulky. As a result, the packaging bag group 20 cannot be easily accommodated in the outer bag 100 of a predetermined size, and for example, the number of packaging bags 2 that can be packed in one outer bag 100 is reduced, and the packaging efficiency may be lowered. For this reason, in this embodiment, by adopting the bulky-reducing conveying means 5, each packaging bag 2 of the packaging bag group 20 is slightly shifted along the conveying direction, so that it is provided at one end in the longitudinal direction. The sealing chuck part 2A does not overlap as much as possible to eliminate the local height difference and to reduce the bulk. As a result, the packaging bag group 20 can be easily packaged in the outer bag 100 of a predetermined size, and the packaging efficiency can be improved.

Subsequently, the carrier 35 moves in a predetermined direction with the group of packaging bags 20 placed on the bottom wall portion 39 thereof, and the empty carrier 35 is again moved onto the extension line of the carrier surface 28 in the carrier direction. Then, the bulky-reducing conveying means 5 conveys the group of packaging bags 20 from the base 16 of the stacking device 15 onto the bottom wall portion 39 of the next conveying table 35 via the conveying surface 28 . By repeating this operation (intermittent movement of the carriages 35 , 35 ), the group of packaging bags 20 on each carriage 35 is sequentially conveyed along the moving direction of the carriage 35 .

Subsequently, referring to FIG. 3, in a state in which the pair of packaging bag groups 20, 20 are respectively placed on the adjacent conveying tables 35, 35 of the first conveying means 6, the adjacent conveying tables 35, 35 are placed. reach the position where the corresponding pair of second conveying means 7, 7 are provided. Then, each conveying pusher 42 and each height restraining bar 43 of the second conveying means 7 descends, and each conveying pusher 42 moves backward in the conveying direction of the group of packaging bags 20 on the conveying table 35 of the first conveying means 6. Each height restraining bar 43 is positioned above the packaging bag group 20 while contacting the end (one end in the longitudinal direction). Subsequently, each transport pusher 42 moves forward together with each height restraint bar 43 , thereby transporting the group of packaging bags 20 on the transport table 35 to the packaging means 8 . At this time, the height-reducing bars 43 of the second conveying means 7 can restrain the bulkiness of the packaging bag group 20 so that the total height of the packaging bag group 20 does not become excessively large. In addition, when each height restraining bar 43 of the second conveying means 7 moves forward, it moves forward so as to enter between the pressing members 55 and 55 of the packaging means 20 .

Therefore, the respective packaging bag groups 20, 20 on the adjacent conveying tables 35, 35 of the first conveying means 6 are moved by the pair of second conveying means 7, 7 onto the holding tables 47, 47 of the pair of packaging means 8, 8. Before being transported onto the mounting surfaces 52, 52, the holding bases 47 of the pair of packaging means 8, 8 are kept horizontally extending. Also, in the preceding stage, in the pair of packaging means 8, 8, the holding member 54 provided on the front side of the holding table 47 in the conveying direction is lowered to the maximum extent and projected above the mounting surface 52 of the holding table 47. state. Furthermore, in this previous stage, the pressing members 55, 55 provided over substantially the entire lengthwise region of the holding base 47 are in a state of being raised to the maximum. Furthermore, in this previous stage, the pair of claw portions 65, 65 provided at the front end of the holding base 47 are in a state of being maximally close to each other.

Subsequently, referring to FIG. 4, the respective packaging bag groups 20, 20 on the adjacent conveying tables 35, 35 of the first conveying means 6 are conveyed by the pair of second conveying means 7, 7 to the pair of packaging means 8, 8, the packaging bag group 20 is stopped at a predetermined position on the mounting surface 52 of the holding table 47 by the holding member 54, and is held by each pressing member. The members 55, 55 are lowered to the maximum extent, and the pressing members 55, 55 press the packaging bag group 20 from its upper surface.

5 and 6, in the pair of packaging means 8, 8, the holding table 47 is rotated around the rotating shaft 59 at a predetermined angle γ so that the front end of the holding table 47 in the conveying direction faces downward. It rotates and moves forward along its transport direction. Then, the outer bag 100 supported by the sealing device 70 is inserted into the opening end of the outer bag 100 with the pair of claw portions 65, 65 provided at the front end of the holding table 47 in the conveying direction being as close as possible. Subsequently, the opening end of the outer bag 100 is opened wide by maximally separating the pair of claw portions 65, 65 from each other.

Substantially at the same time, the holding member 54 provided on the holding table 47 is raised to the maximum and returned to the initial state, and the holding members 55, 55 provided on the holding table 47 are also raised to the maximum and returned to the initial state. Substantially at the same time, air is jetted from the air jet means 9 (air nozzle 57) to the lower surface of the group of packaging bags 20 on the mounting surface 52 of the holding table 47, so that the group of packaging bags 20 is locally placed. It is in a state of slightly floating from the placement surface 52 . As a result, the frictional force between the mounting surface 52 of the holding base 47 and the lower surface of the group of packaging bags 20 is reduced. It easily (smoothly) slides down on the mounting surface 52 due to its own weight and is accommodated in the outer bag 100 .

After that, the pair of packaging means 8, 8 are maintained in a horizontal state by rotating in the opposite direction about the rotating shaft 59 while the holding table 47 is retracted along the conveying direction. Substantially at the same time, the holding member 54 provided on the holding table 47 descends to the maximum extent and protrudes above the mounting surface 52 of the holding table 47 . Further, the pair of claw portions 65, 65 provided at the front end of the holding base 47 are brought closer to each other as much as possible and returned to the initial state. Further, in the pair of sealing devices 70, 70, after the packaging bag groups 20, 20 are packaged in the outer bags 100, 100 by the pair of packaging means 8, 8 and sealed, the next outer bags 100, 100 are sealed. It is supported by a pair of sealing devices 70, 70 respectively.

Then, each of the packaging bag groups 20, 20 on the adjacent conveying tables 35, 35 of the first conveying means 6 is moved by the pair of second conveying means 7, 7 to the holding tables 47, 47 of the pair of packaging means 8, 8. are conveyed onto the mounting surfaces 52, 52, respectively, and the packaging bag groups 20, 20 are accommodated in the outer bags 100, 100 by the pair of packaging means 8, 8, respectively. As a result, the group of packaging bags 20 stacked in a predetermined number by the stacking device 15 is transported outside by the bulk reduction transport means 5, the first transport means 6, the pair of second transport means 7, 7, and the pair of packaging means 8, 8. They are stored in bags 100, 100 in sequence.

As described above, in the packaging apparatus 1 according to the embodiment of the present invention, while conveying the group of packaging bags 20 stacked in a predetermined number, each packaging bag 2 is shifted back and forth in the conveying direction, thereby reducing the bulkiness of the packaging bag. a conveying means 5, and a packaging means 8 that receives the packaging bag group 20 whose bulkiness has been reduced by the bulkiness reduction conveying means 5 and rotates to house the packaging bag group 20 in the outer bag 100 by its own weight. , is equipped with Since the bulkiness of the packaging bag group 20 can be kept low while being conveyed by the bulkiness-reducing conveying means 5, the packaging bag group 20 can be easily housed in the outer bag 100 of a predetermined size. The number of packaging bags 2 that can be packaged in the outer bag 100 can be increased, and the size after packaging can be made compact, and the packaging efficiency can be improved.

In addition, since the bulkiness of the packaging bag group 20 can be kept low while being conveyed by the bulkiness reduction conveying means 5, the packaging time of the packaging bag group 20 can be shortened and productivity can be improved. Furthermore, the packing means 8 receives the packaging bag group 20 whose bulkiness is kept low, and rotates to accommodate the packaging bag group 20 in the outer bag 100 by its own weight, so that the space in the vertical direction is effectively utilized. It is possible to reduce the planar space occupied by the packaging apparatus 1 and improve space efficiency.

In addition, in the packaging apparatus 1 according to the embodiment of the present invention, the bulk reduction conveying means 5 includes a conveying member 18 (a plurality of conveying rods 21, 21) that conveys the group of packaging bags 20, and the conveying member 18 conveys and a stopper member 19 (a plurality of stopper rods 22, 22) for stopping the packed packaging bag group 20 at a predetermined position. It has a V shape when viewed from the side. Thereby, at least the maximum distance between the conveying portion 24 at the position where the conveying member 18 conveys the group of packaging bags 20 and retreats and the stopper portion 25 of the stopper member 19 is set to be longer than the total length of the group of packaging bags 20 in the longitudinal direction. can be set large.

As a result, particularly when the conveying section 24 of the conveying member 18 conveys the group of packaging bags 20 and retreats, the group of packaging bags 20 moves forward in the conveying direction due to inertia as each of the packaging bags 2 moves to the upper layer. Since it is stopped by the stopper portion 25 of the stopper member 19 while sliding (shifting) by a large sliding amount, the bulk of the packaging bag group 20 can be kept low.

Furthermore, in the packaging device 1 according to the embodiment of the present invention, the packaging means 8 is provided with a holding table 47 that is configured to be rotatable and holds the packaging bag group 20. The holding table 47 is particularly A pressing member 55 configured to be vertically movable with respect to the holding table 47 is provided for pressing the packaging bag group 20 on the mounting surface 52 of the holding table 47 from above. As a result, when the holding table 47 rotates, the pressing member 55 holds the packaging bag group 20 while keeping the bulk thereof low. The bag group 20 can be easily accommodated.

Furthermore, in the packaging device 1 according to the embodiment of the present invention, the holding base 47 of the packaging means 8 is configured to move back and forth along the conveying direction. As a result, the front end of the holding table 47 in the conveying direction can be brought as close as possible to the opening end of the outer bag 100 supported by the sealing device 70 . As a result, the packaging bag group 20 on the mounting surface 52 of the holding table 47 can be properly accommodated in the outer bag 100 .

Furthermore, in the packaging device 1 according to the embodiment of the present invention, the holding table 47 of the packaging means 8 is provided at the forward end in the conveying direction so as to protrude forward in the conveying direction, and is inserted into the outer bag 100 from the opening end thereof. A pair of claw portions 65, 65 are provided, and the pair of claw portions 65, 65 are configured to be able to approach and separate from each other. The pair of claws 65, 65 enables the opening end of the outer bag 100 to be expanded to the maximum extent, and the pair of claws 65, 65 allows the packaging bag group 20 to smoothly enter the outer bag 100. Since it can be guided, it becomes easy (smooth) to house the packaging bag group 20 in the outer bag 100 by its own weight.

Furthermore, the packaging device 1 according to the embodiment of the present invention is provided with the air injection means 9 for injecting air from the mounting surface 52 of the holding table 47 of the packaging means 8 . Then, as the holding table 47 rotates, it advances along the conveying direction, the holding member 54 provided on the holding table 47 returns to its initial state, and the pressing member 55 provided on the holding table 47 also returns to its initial state. Substantially simultaneously with the return, air is jetted from the air jetting means 9 (air nozzles 57 ) onto the lower surface of the group of packaging bags 20 on the mounting surface 52 of the holding table 47 . As a result, the packaging bag group 20 is locally slightly lifted from the mounting surface 52, and the frictional force between the mounting surface 52 of the holding table 47 and the lower surface of the packaging bag group 20 is reduced. , the packaging bag group 20 on the mounting surface 52 can be easily (smoothly) slid down by its own weight and accommodated in the outer bag 100 .

REFERENCE SIGNS LIST 1 packaging device 2 packaging bag (goods) 20 packaging bag group (goods group) 5 bulk reduction conveying means 8 packaging means 9 air injection means 18 conveying member 19 stopper member 21 conveying bar 22 Rod-shaped body for stopper, 24 Conveying part, 25 Stopper part, 47 Holding base, 54 Holding member, 55 Pressing member, 57 Air nozzle, 65 Claw part, 100 Outer bag

Claims (5)

A packaging device for packaging a group of articles in which a predetermined number of articles are accumulated in an outer bag,
a bulkiness reduction conveying means for reducing the bulkiness of each article by shifting each article back and forth in the conveying direction while conveying the article group;
packaging means for receiving the group of articles whose bulkiness has been reduced by the bulk-reducing conveying means and rotating the group of articles to accommodate the group of articles in the outer bag by its own weight ;
The bulk reduction conveying means includes a conveying member that conveys the group of articles, and a stopper member that stops the group of articles conveyed by the conveying member at a predetermined position,
The packaging device , wherein the conveying portion of the conveying member and the stopper portion of the stopper member are V-shaped when viewed from the side . A packaging device for packaging a group of articles in which a predetermined number of articles are accumulated in an outer bag,
a bulkiness reduction conveying means for reducing the bulkiness of each article by shifting each article back and forth in the conveying direction while conveying the article group;
packaging means for receiving the group of articles whose bulkiness has been reduced by the bulk-reducing conveying means and rotating the group of articles to accommodate the group of articles in the outer bag by its own weight ;
The packaging means comprises a holding stand configured to be rotatable and holding the group of articles,
The holding table is provided at the front side of the conveying direction of the group of articles, and has a retractable holding member for restricting the movement of the group of articles on the holding table; and the articles on the holding table. A packaging device , comprising: a pressing member configured to be vertically movable with respect to the holding base for pressing the group from above . 3. The packaging apparatus according to claim 2 , wherein the holding table is configured to move back and forth along the conveying direction. A pair of claw portions projecting forward in the conveying direction from the front end in the conveying direction of the holding base and inserted into the outer bag from the opening end of the outer bag are provided, and the pair of claw portions are adjacent to each other. - The packaging device according to claim 2 or 3, characterized in that it is configured to be separable. 5. The packaging apparatus according to any one of claims 2 to 4, further comprising air jetting means for jetting air from a mounting surface of said holding table on which said group of articles is mounted.

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