JP2015174758A - Transporting device comprising overcoming mechanism for overlapped bags - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyor type transporting device capable of certainly overcoming a variety of overlapped state of bags in a bag groups of single package.SOLUTION: The transporting device comprises: a first conveyor comprising a transportation surface which has friction force or adhesive force over friction force between bags and has an inclination at a predetermined angle with which bags other than bags just on the transportation surface slides down by self-weight in an opposite direction to the transporting direction so that the bags are separated; a second conveyor having a predetermined transportation speed higher than that of an upstream conveyor so that bags which overlaps each other at end parts of the bags or are in contact with each other at a part in the transporting direction are separated; a third conveyor in which a plurality of linear belts are arranged in a fan shape in a manner where gaps between adjacent linear belts in a width direction are gradually increased from upstream to downstream so that bags which overlaps each other at end part of the bags in a width direction orthogonal to the transporting direction or are in contact with each other at a part of the bags.

Description

  The present invention mainly provides a sheet-like bag having flexibility and having a thicker central portion than the peripheral portion, such as a bag containing foodstuffs such as seasonings enclosed in an instant food package. Concerning a transport device that transports, in particular, it has a transport surface that can transport multiple bags in parallel, and transports the overlapping state of the bags of a single-pack-like bag group that is loaded in a random manner on the transport surface The present invention relates to a conveyor device of a belt conveyor type having a mechanism that can be eliminated automatically.

  In the case of instant foods such as instant noodles, in general, a single bag containing a food body such as noodles and other ingredients such as ramen soup (condiments and ingredients) is enclosed in the package of the food body.

  In the bag as described above, polyethylene, polypropylene, aluminum foil or the like is used as a flexible sheet material, and ingredients such as seasonings and ingredients are sealed inside by welding the periphery of the sheet material. Yes. Therefore, the bag has a shape in which the peripheral edge is thinner than the center.

  When manufacturing a package that encloses a single bag of this type (hereinafter referred to as a “small bag”), it is necessary to put one or a predetermined number of small bags into the package of the food body. The charging operation is automated by using, for example, a robot.

  Specifically, for example, a single-packed sachet conveyed from the upstream side by a belt conveyor is imaged by the imaging means, and the orientation and position of the sachet on the conveyance surface are recognized based on the image, and the recognition information Based on this, the pouches that are transported from the upstream side of the conveyor are automatically thrown into the packaging body by controlling the gripping operation of the pouches by the robot hand and the feeding operation into the packaging body by the CPU. .

  In this way, in the product manufacturing system that automates the bag loading operation, small bags such as ramen soup are processed by a robot, so that the bag itself is recognized as being overlapped or partly in contact with the bag. For example, there may be a problem caused by overlapping of the bags being transported, for example, processing two sachets stacked one above the other as one, or processing only one of the stacked sachets. It was.

  In order to solve such a problem, before the step of putting the sachet into the food packaging body, the overlapping state between the bags is eliminated during the transportation, or the sachet is placed in the transportation path so that the overlapping does not occur in advance. It is necessary to bring the sachets on the transport surface into a disjointed state (a state in which each sachet is separated from each other), such as preventing overlap between the bags by carrying in.

  In particular, in the case of a sheet-like bag having flexibility and a thicker central part than the peripheral part, it is intended for solid substances such as overlapping of wood or overlapping of tablets in the bag. Compared to the case, it is necessary to consider the change of the overlapping state due to the deformation of the bag body, consider the lightness of the bag and the friction coefficient of the sheet surface, and take into consideration that the sheet material is not damaged. .

  For example, Patent Document 1 is known as a technique for changing the overlapping state of the sheet-like bags into pieces. In Patent Document 1, as a means for preventing overlapping of small bags, as shown in FIG. 7, a regulating member 22 spaced from the conveying surface 21 at an interval of about 1 to 2 times the thickness T of the small bag 1 is disposed above the conveying surface 21. By providing and restricting the passage of the small bag 1 that overlaps the upper side by the regulating member 22, the bags are prevented from overlapping and being transported on the transport surface 21.

  Further, in Patent Document 2, as a technique related to the automation process of the process of putting a package such as a sachet into a cup such as cup noodles, (a) the package is separated by the frictional force and the inclination of the conveying conveyor. Inclined conveyor system, (b) horizontal drum system that continuously discharges packages by centrifugal force, (c) parts feeder system that continuously cuts packages by bowl vibration, and (d) package image processing and robot handling. It is described that a vision system robot system for selecting is known (see the background art of Patent Document 2).

JP 2006-131248 A JP 2012-001356 A

  In patent document 1 mentioned above, about the overlap (overlap for one thickness or more) of the pouches in the thick storage part in which the seasoning is stored, it is canceled by the overlap prevention means (regulation member). Will be possible. Further, with the inclined conveyor system described in Patent Document 2, it is considered that the overlapping state of packages such as small bags during conveyance can be solved to some extent.

  However, even if any of the above-described techniques for solving the overlapping state during transportation is adopted, for example, as shown in FIG. In the case where the parts 1a overlap each other, or as shown in FIG. 9, in a conveyor having a width capable of transferring a plurality of sachets 1 in parallel on the transfer surface 21, the peripheral edge portion is similarly in the direction orthogonal to the transfer direction X. When 1a overlaps, it is considered difficult to reliably eliminate the overlapping state between the bags during transport.

  The present invention has been made under the circumstances as described above, and an object of the present invention is to target a single-pack-shaped bag group that is randomly overlapped and carried on the transport surface, and the bags of those bag groups An object of the present invention is to provide a conveyor-type transfer device that can reliably eliminate various overlapping states during transfer.

The present invention has a transport surface capable of transporting a plurality of bags in parallel, and automatically conveys the overlapping state of the bags of a single-pack-like bag group that is randomly loaded on the transport surface. The present invention relates to a conveyor device of a belt conveyor type having a mechanism that can be eliminated.
The bags other than the bag on the conveying surface having a frictional force or adsorption force exceeding the frictional force between the bags of the bag and immediately above the conveying surface slide down under their own weight in the direction opposite to the conveying direction, and the bags are separated from each other. A first conveyor having a conveying surface inclined at a predetermined angle that is separated from the bag, and a bag in which end portions of the bags overlap or a part of the bags are in contact with each other in the conveying direction are connected to the upstream side. The second conveyor having a predetermined conveyance speed faster than the upstream conveyor so as to be separated by a speed difference from the conveyor, and the end of the bag overlap in the width direction orthogonal to the conveyance direction, A plurality of linear belts are arranged in a fan shape in such a manner that the interval between adjacent belts in the width direction gradually widens from the upstream side to the downstream side so that the bags that are partially in contact with each other are separated. A third conveyor provided. It is achieved.

Furthermore, the above object of the present invention is to
The second conveyor is composed of a plurality of conveyors provided in series so that the conveyance speed increases stepwise toward the downstream,
The third conveyor is composed of a plurality of conveyors provided in series, and is continuously provided in such a manner that the ends of both the linear belts are engaged with each other in adjacent conveyors,
The conveyor connected to the upstream side of the second conveyor is the first conveyor;
The conveyor connected to the upstream side of the second conveyor is the third conveyor;
The single bag-like bag is a sheet-like bag having flexibility and having a thicker central portion than the peripheral portion;
The first conveyor is present at a position exceeding the thickness of one sheet in a direction perpendicular to the inclined conveying surface among a plurality of overlapping bags in a state exceeding the thickness of the bag. Further comprising a scraping unit having a member for scraping the bag;
The first conveyor further includes a receiving hopper for receiving the single-packed bag group to be carried;
The direction and position of the bag is recognized based on the captured image of the bag in which the overlap between the bags is eliminated by the first conveyor to the third conveyor, and the bag is put into the package by the robot based on the recognition information. Further comprising control means for controlling
Are more effectively achieved by each.

  According to the present invention, it is possible to reliably eliminate various overlapping states between bags of a single-packed bag group during transportation.

  Specifically, during transport by the first conveyor, bags other than the bags directly above the transport surface (bags that are overlapped on the bag in a single or multiple manner without contacting the transport surface) are weighted in the direction opposite to the transport direction. The bags that have slipped down and overlapped one above the other are almost separated from each other. And when a bag is transferred from the 1st conveyor to the 2nd conveyor, the bag with which the edge parts of a bag overlap in the conveyance direction, and the bags which a part of bag contacts in the conveyance direction Since they are separated by the speed difference, the overlapping state of the bags in the transport direction is eliminated. And during conveyance by the third conveyor, the bags in which the end portions of the bags overlap each other in the direction orthogonal to the conveyance direction (width direction of the conveyance path) or the bags that are partially in contact with each other are fan-shaped. Since they are separated by the conveyor, the overlapping state of the bags in the width direction of the conveyance path is eliminated.

  Moreover, the 3rd conveyor can be further spaced apart by the bag conveyed parallelly by setting it as the structure provided with the 1st fan-shaped conveyor and the 2nd fan-shaped conveyor, and the direction orthogonal to a conveyance direction. It is possible to more reliably eliminate the overlapping state between the bags.

It is the schematic which shows the structure of the principal part of the conveying apparatus provided with the overlap cancellation | release mechanism between the bags which concerns on this invention. It is a schematic diagram which shows the structure which looked at the inclined conveyor which concerns on this invention from the side. It is a schematic diagram which shows the overlapping state which is not eliminated even if it passes through an inclination conveyor. It is a schematic diagram which shows the structure which looked at the speed-increasing conveyor which concerns on this invention from the side. It is a schematic diagram which shows the overlapping state which is eliminated through the speed increasing conveyor, and the overlapping state which is not eliminated. It is a top view which shows typically the structural example of the linear belt conveyor which concerns on this invention. It is a schematic diagram which shows an example of the prior art regarding the overlap prevention of bags. It is a schematic diagram which shows an example of the overlapping state of the bags which cannot be eliminated with a restriction member. It is a schematic diagram which shows the other example of the overlapping state of the bags which cannot be eliminated with a restriction member.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram illustrating a configuration example of a main part of a transport device provided with a mechanism for eliminating overlap between bags according to the present invention, and schematically illustrates an example of a configuration of the transport device viewed from the side. ing.

  A transport apparatus 10 according to the present invention includes a first conveyor (hereinafter referred to as an “inclined conveyor”) 11 shown in FIG. By passing a conveyor (hereinafter referred to as “speed increasing conveyor”) 12 and a third conveyor (hereinafter referred to as “linear belt conveyor”) 13, the apparatus eliminates overlapping of bags.

  Each of these conveyors 11 to 13 has a conveyance path having a width capable of conveying a plurality of bags 1 in parallel. In the present embodiment, a speed-up conveyor 12 is continuously provided on the downstream side of the inclined conveyor 11. The linear belt conveyor 13 is connected to the downstream side of the speed increasing conveyor 12.

  Then, by adopting the above arrangement configuration, first the rough conveyor 11 removes the rough overlap, then the speed increasing conveyor 12 separates the bags 1 in the flow direction, and finally the linear belt conveyor 13 Thus, separation is performed in a direction perpendicular to the flow direction (width direction orthogonal to the conveyance direction).

  In addition, it is good also as a structure which connected the linear belt conveyor 13 in the downstream of the inclined conveyor 11, and connected the speed-increasing conveyor 12 in the downstream of the linear belt conveyor 13, and also in the structure, bags are similarly. It is possible to remove the overlap.

  In the present embodiment, a single-bag bag 1 to be transported is a sheet-like bag as shown in FIG. 1, for example, a sachet containing ingredients such as seasonings enclosed in an instant food package, The bag is a single bag having a flexibility and a thicker central portion than the peripheral portion, such as a bag that is relatively larger than the small bag.

  The conveyance device 10 illustrated in FIG. 1 has a conveyance surface 11b that is inclined at a predetermined angle so as to increase from the upstream side to the downstream side in the conveyance direction, and is scraped off above the inclined surface 11b. , A speed increasing conveyor 12 for increasing the conveying speed V1 of the bag 1 conveyed by the inclined conveyor 11, and a plurality of linear belts 13-1a are arranged in a fan shape. And a linear belt conveyor 13 having a fan-shaped conveyor.

  The “linear belt” referred to in the present invention means a linear belt having a narrow belt width, and is not limited to a round belt having a circular cross section. For example, the belt width is a short direction of the small bag 1. A flat belt having a narrower width than that of the belt, a belt having an inverted V-shaped or inverted U-shaped cross section, or a ladder chain that is rotationally driven through a sprocket may be used as the “linear belt”.

  Hereinafter, functions and configurations of these conveyors will be described in more detail.

<Inclined conveyor>
FIG. 2 is a schematic diagram showing a configuration of the inclined conveyor 11 according to the present invention viewed from the side.

  The inclined conveyor 11 in the present embodiment includes a receiving hopper portion 11a for receiving a group of single-bag bags to be carried in. For example, the group of bags thrown in from the charging hopper is passed through the loading conveyor. Thus (or directly without using the carry-in conveyor or using the receiving hopper 11a as the charging hopper), the receiving hopper 11a receives the hopper.

  The inclined conveyor 11 according to the present invention is a conveyor that functions as a means for solving a state in which bags are overlapped in a single or multiple manner. The main configuration is a conveyor surface (belt surface) inclined at a predetermined angle and a bag. A conveyance surface 11b having a frictional force or a suction force that exceeds the frictional force between each other is provided. Here, the “predetermined angle” refers to an inclination angle at which bags other than the bag directly above the transport surface 11b slide down with their own weight in the direction opposite to the transport direction and the bags are separated from each other. Further, the “friction force or adsorption force” mentioned here means either or both of the friction force and the adsorption force.

  In the case of the belt having the above-mentioned suction force, for example, a belt having a plurality of holes having a predetermined shape (for example, linear or circular suction holes) formed on the belt surface of the flat belt, and from below the belt surface. The inclined conveying surface 11b is given a suction force by the suction force of the suction blower.

  By providing the inclined conveyor 11 having such a belt surface, for example, even in the case where one or more bags 1 are placed on the upper surface of the bag 1 immediately above the conveyance surface and the bags overlap each other, the conveyance surface Bags 1 other than the bag 1 immediately above slide down under their own weight in the direction opposite to the conveying direction, and the bags are almost separated.

  The inclined conveyor 11 preferably further includes a scraping unit 11c having a member 11c2 that allows passage of only one thickness of the bag 1 in a direction perpendicular to the inclined conveyance surface 11b. . In this case, the member 11c2 is configured by a fixed member (baffle plate or brush-like member) that restricts passage of the bag riding on the bag 1 or a rotatable rotating member. When the latter rotating member is used, for example, a rotating member having a plurality of rotating blades radially arranged around the rotating shaft 11c1 fixed above the inclined conveyance surface 11b (in this example, flexible) The thickness of the bag 1 in the direction perpendicular to the inclined conveying surface 11b is obtained by rotating the rotor blades in the direction opposite to the conveying direction by a driving means such as an electric motor. Of the plurality of bags 1 overlapping in a state exceeding one sheet, the bag 1 existing at a position exceeding one sheet thickness is scraped off by the rotary blade 11c1.

  By adopting such a scraping unit 11c, if the bags are not separated by the weight of the bag 1 on the inclined conveyance surface 11b, for example, the bag 1 immediately above the inclined conveyance surface 11b Even when the lower surface of the bag 1 on the upper surface is in contact with the inclined transport surface 11b and the frictional force does not cause the bag 1 to slide off due to its own weight, two or more overlapping portions of the bag 1 are 1 When the thickness of one bag 1 exceeds one, the other bag 1 on the bag 1 immediately above the inclined conveyance surface 11b is scraped off by the scraping unit 11c, and the bags are separated from each other. It becomes a state.

  However, when the overlapping portions of two or more bags 1 do not exceed the thickness of one bag 1, the overlapping state can be reliably eliminated with the inclined conveyor 11 alone. Instead, the bag 1 is transferred to the speed increasing conveyor 12 in a state where a part of the bag 1 is overlapped. For example, as shown in FIGS. 3 (A2), (B2), and (C2), each bag 1 carried into the inclined conveyor 11 in the state shown in FIGS. 3 (A1), (B1), and (C1). The bag 1 is transferred to the speed-increasing conveyor 12 in a state where the ends of the bags 1 are overlapped with each other.

  In addition, when carrying in the bag 1 group by the inclined conveyor 11, as shown in FIG. 1, the position of the bag 1 to be conveyed is not a state in which the end portions of the bags 1 are aligned and neatly stacked. It may be in a state where the directions are different and the bags are randomly overlapped.

<Increase conveyor>
FIG. 4 is a schematic diagram showing a configuration of the speed-increasing conveyor 12 according to the present invention as viewed from the side.

  As illustrated in FIGS. 3A2, 3 </ b> B <b> 2, and 2 </ b> C <b> 2, the speed-increasing conveyor 12 is in contact with bags in which the end portions of the bags 1 overlap each other or a part of the bags 1 in the transport direction. It is a conveyor which has the predetermined conveyance speed V2 faster than the conveyance speed V1 of the conveyor (in this example, the inclination conveyor 11) provided in a row so that the bags currently carried may be separated. The speed-increasing conveyor 12 may be configured by a plurality of conveyors (two or more conveyors) provided in series so that the transport speed is increased stepwise toward the downstream. When it is set as the form, separation | separation of the bags in the flow direction from upstream to downstream can be improved further.

  In FIG. 4, the belt of the speed-increasing conveyor 12 is composed of a perforated belt or an ordinary flat belt that has a suction force by the suction blower 12 a as in the case of the inclined conveyor 11, and the coefficient of friction is the same as that of the inclined conveyor 11. More than that. Further, the speed increasing conveyor 12 in this embodiment has a substantially horizontal conveying surface and a conveying width (belt width) equivalent to that of the inclined conveyor 11.

  In this way, by providing a speed difference (V2> V1) between the speed V1 of the inclined conveyor 11 and the speed V2 of the speed increasing conveyor 12, as shown in FIG. When the downstream bag 1 (a) of (b) gets on the speed increasing conveyor 12, the bag 1 (a) is pulled downstream by the speed difference (V2-V1), and the flow direction is The bag 1 (a, b) is then separated.

  In other words, by providing the speed increasing conveyor 12 in addition to the inclined conveyor 11, for example, as described above, the bag 1 that could not be separated by the inclined conveyor 11 (the portion of each bag 1 is one bag). Even if the overlapping bags 1 and the bags 1) that are partially in contact with each other without exceeding the thickness of one sheet are not in parallel with each other in the width direction, the speed increasing conveyor 12 When transferring, the bags 1 can be separated from each other in the transport direction.

  FIG. 5 is a schematic diagram showing the overlapping state that is eliminated through the speed-increasing conveyor 12, and the overlapping state that is not eliminated, and the inclined conveyor 11 in the state as shown in FIGS. 5 (A2), (B2), and (C2). As shown in FIGS. 5 (A3), (B3), and (C3), most of the bags 1 are overlapped with each other when the bags 1 are transported from the inclined conveyor 11 to the speed increasing conveyor 12. It is eliminated by the speed increasing conveyor 12. However, as shown in FIG. 5 (C3), each bag 1 transferred to the speed-increasing conveyor 12 in parallel in the width direction at the same speed (each bag 1 whose ends overlap each other in the width direction). In this case, the overlapping state cannot be reliably eliminated, and is transferred to the linear belt conveyor 13 in that state.

<Linear belt conveyor>
The linear belt conveyor 13 is a conveyor in which a linear belt (in this example, a round belt) is arranged in a fan shape.

  FIG. 6 is a plan view schematically showing an example of the configuration of the linear belt conveyor 13, and the configuration of the linear belt conveyor 13 will be described in detail with reference to this drawing.

  The linear belt conveyor 13 according to the present invention includes bags 1 as illustrated in FIG. 5 (C3), that is, bags 1 that overlap each other in the direction orthogonal to the conveyance direction X (width direction of the conveyance path). It is a conveyor that can move away in the direction (width direction of the conveyance path).

  In the present embodiment, the linear belt conveyor 13 separates the bags 1 in which the end portions of the bags 1 overlap each other in the width direction of the conveyance path and the bags in which a part of the bags 1 are in contact with each other. As shown, a conveyor (hereinafter referred to as “fan”) in which a plurality of linear belts 13-1a are arranged in a fan shape in such a manner that the interval between adjacent belts in the width direction gradually increases from the upstream side toward the downstream side. It is configured to include a “shaped conveyor”.

  Although the said linear belt conveyor 13 is good also as a structure provided with one fan-shaped conveyor whose planar shape has comprised trapezoid, if it is going to lengthen the separation distance of the bags in the width direction of a conveyance path. Since the distance between the linear belts 13-1a becomes larger on the downstream side, the bag 1 falls from the gap between the belts depending on the size of the bag 1 to be transported, or a part of the bag 1 is in the gap. There is a possibility that it will be in a state of slipping.

  Therefore, in the present embodiment, the linear belt conveyor 13 is composed of a plurality of conveyors provided in series in the transport direction, and is continuously provided in such a manner that the ends of both linear belts are engaged with each other in adjacent conveyors. The configuration is made. When it is set as the structure, isolation | separation of the bags in the width direction of a conveyance path can be improved further.

  In the embodiment described below, the distance between the bags in the width direction of the conveyance path is two so that the distance exceeds the length of the portion thinner than the central portion of the bag (the longest length of the peripheral portion). The above-described fan-shaped conveyor is provided, and the fan-shaped conveyors are continuously arranged in such a manner that both linear belts are engaged with each other in a conveyor adjacent in the transport direction. In addition, depending on the length of the peripheral part of a bag, one fan-shaped conveyor may be sufficient.

  The linear belt conveyor 13 shown in FIG. 6 is a configuration example when two fan-shaped conveyors 13-1 and 13-2 are provided. The linear belt conveyor 13 is downstream of the fan-shaped conveyor main body. A first sector shape in which N linear belts 13-1a stretched by a pair of tail rollers 13-1b, 13-1c provided at the side end portion and the upstream end portion are arranged in a sector shape. The second fan type in which each of the conveyor 13-1 and the N-1 linear belts 13-2a is disposed between the adjacent linear belts 13-1a of the first fan-shaped conveyor 13-1. -Shaped conveyor 13-2.

  In the second fan-shaped conveyor 13-2, the downstream end of the linear belt 13-2a is wound around the tail roller 13-1c (each pulley of the roller) on the downstream side of the first fan-shaped conveyor 13-1. At the same time, the upstream end of the linear belt 13-2a is placed on its own upstream tail roller 13-2b located in the middle of the fan-shaped conveyance path formed by the first fan-shaped conveyor 13-1. It has a wound configuration. Even when three or more fan-shaped conveyors are provided, the downstream end of the second and subsequent fan-shaped conveyors is connected to the tail roller 13-1c on the downstream side of the first fan-shaped conveyor 13-1. It becomes a wound configuration.

  Each linear belt of the first fan-shaped conveyor 13-1 and the second fan-shaped conveyor 13-2 is rotated by the same downstream tail roller 13-1c by a driving means such as an electric motor. , And is driven to rotate in the transport direction.

  The speed V3 of the linear belt conveyor 13 is slightly higher than the speed V2 of the speed increasing conveyor 12.

  By providing the linear belt conveyor 13 as described above, the overlapping bags 1 pass over the upper surface of the linear belt arranged in a fan shape, so that each bag 1 (a, b) as shown in FIG. Grips the linear belt arranged in a fan shape, and the respective bags 1 (a, b) are guided to the outside and the bags in the vertical direction are separated from the flow.

  Thereby, the overlapping states of the bags that could not be separated even after passing through the inclined conveyor 11 and the speed increasing conveyor 12, for example, the overlapping of each bag 1 portion does not exceed the thickness of one bag 1 Even if the end portions of the bags 1 that are parallel to each other in the width direction of the conveyance path overlap (or are in contact with each other), the fan-shaped conveyor 13-1 (and 13-2) ), The bags 1 can be separated in the direction (conveying width direction) perpendicular to the conveying direction.

  In other words, in addition to the inclined conveyor 11 and the speed-increasing conveyor 12, a linear belt conveyor 13 is provided to convey various overlapping states of the single-packed bag groups that are randomly overlapped and carried into the conveyance path. It is possible to resolve automatically during.

  And the process based on the captured image of the bag 1 on the conveyor (such as a process of loading the bag 1 into the package by a robot) is carried out by carrying out the bag group in which the overlapping state of the bags is eliminated to the conveyor of the next process. It is possible to perform reliably. In addition, it is good also as a structure provided with the control means of the process, or the control means and the robot in the conveying apparatus 10. FIG. For example, the direction and the position of the bag are recognized based on the captured image of the bag in which the overlap between the bags is eliminated by the first conveyor No. 3 conveyor, and the bag is put into the package by the robot based on the recognition information. It is good also as a structure with which the conveying means 10 was equipped with the control means which controls charging operation.

  In addition, in embodiment mentioned above, it is provided with a series of conveyors comprised from the inclination conveyor 11, the speed-increasing conveyor 12, and the linear belt conveyor 13 (fan-shaped conveyor), and the relative position of the bag 1 in conveyance In the above description, the conveying device that changes the relative speed has been described as an example. However, a swinging mechanism that swings a group of bags (for example, a group of stacked bags) stacked in the loading hopper in the width direction of the tilting conveyor 11 is provided. The bag group distributed in the width direction of the tilting conveyor by the swing mechanism may be carried into the receiving hopper portion 11a of the tilting conveyor.

  In the case of that form, the swing mechanism is provided with a conveyance path in a direction perpendicular to the direction of the conveyance path of the inclined conveyor 11, for example, and the conveyance path itself of the carry-in conveyor is in the conveyance direction and in the opposite direction. Driving means for horizontally moving (swinging). By setting it as such a structure, the bag 1 will be disperse | distributed to the width direction of the conveyance path of the inclination conveyor 11 via the receiving hopper part 11a.

1 bag 10 Transport device (conveyor device)
11 Inclined conveyor (first conveyor)
11a Receiving hopper 11b Inclined conveying surface 11c Scraping unit 11c1 Rotating shaft 11c2 Scraping member 12 Speed increasing conveyor (second conveyor)
13 Linear belt conveyor (third conveyor)
13-1 First fan-shaped conveyor 13-1a Linear belt of the first fan-shaped conveyor 13-1b Upstream tail roller of the first fan-shaped conveyor 13-1c Downstream tail roller of the first fan-shaped conveyor 13-2 Second Fan-shaped Conveyor 13-2a Linear Belt of Second Fan-shaped Conveyor 13-2b Upstream Tail Roller of Second Fan-shaped Conveyor V1 Conveying Speed of Inclined Conveyor V2 Conveying Speed of Speed-Up Conveyor V3 Conveying speed of linear belt conveyor

Claims (9)

It has a transport surface that can transport multiple bags in parallel, and automatically eliminates the overlapping state of bags in a single-pack-like bag group that is randomly stacked on the transport surface. It is a belt conveyor type transport device equipped with a mechanism capable of
The bags other than the bag on the conveying surface having a frictional force or adsorption force exceeding the frictional force between the bags of the bag and immediately above the conveying surface slide down under their own weight in the direction opposite to the conveying direction, and the bags are separated from each other. A first conveyor having a conveying surface inclined at a predetermined angle to be separated;
More than the conveyor on the upstream side so that the bags overlap each other in the transport direction or the bags that are partly in contact with each other are separated by a speed difference from the conveyor connected to the upstream side. A second conveyor having a fast predetermined conveying speed;
The interval between adjacent belts in the width direction is downstream from the upstream side so that the end portions of the bags overlap in the width direction orthogonal to the transport direction or the bags that are partly in contact with each other are separated from each other. A third conveyor in which a plurality of linear belts are arranged in a fan shape so as to gradually spread toward the side;
A transport device provided with a mechanism for eliminating overlap between bags.   The said 2nd conveyor is comprised with the some conveyor provided in series so that a conveyance speed may increase in steps toward downstream, The conveying apparatus of Claim 1 characterized by the above-mentioned.   The said 3rd conveyor is comprised by the some conveyor provided in series, and is continuously provided in the form which the edge part of both the said linear belts bites in the adjacent conveyor. Or the conveying apparatus of 2.   The conveyor according to any one of claims 1 to 3, wherein a conveyor connected to the upstream side of the second conveyor is the first conveyor.   The conveyor according to any one of claims 1 to 3, wherein a conveyor connected to the upstream side of the second conveyor is the third conveyor.   The conveyance according to any one of claims 1 to 3, wherein the single bag-like bag is a sheet-like bag having flexibility and having a thicker central portion than a peripheral portion. apparatus.   The first conveyor is a bag that is present at a position exceeding the thickness of one of a plurality of bags overlapping each other in a state exceeding the thickness of the bag in a direction perpendicular to the inclined conveyance surface. The transport apparatus according to any one of claims 1 to 4, further comprising a scraping unit having a member for scraping off.   The transport apparatus according to any one of claims 1 to 5, wherein the first conveyor further includes a receiving hopper unit that receives the single-packed bag group to be carried.   The direction and position of the bag is recognized based on the captured image of the bag in which the overlap between the bags is eliminated by the first conveyor to the third conveyor, and the bag is put into the package by the robot based on the recognition information. The transport apparatus according to claim 1, further comprising a control unit that controls the operation.