JP2019177993A - Carrier device for sheet-like carried material - Google Patents

Abstract

To provide a carrier device for a sheet-like carried material capable of switching a traveling direction mechanically by utilizing characteristics of a high-rigidity part and a low-rigidity part of the sheet-like carried material itself, without detecting a direction of the sheet-like carried material.SOLUTION: A carrier device for a sheet-like material includes: a pair of friction rotating bodies 14a, 14b; 24a, 24b partially sandwiching a sheet-like carried material P at a position spaced a predetermined distance apart in a direction perpendicular to a first carrying direction, the friction rotating bodies including: first roller pair 10 and second roller pair 20 configured to carry a low-rigidity part 105 of the sheet-like carried material P while deforming it in a direction in which a distance between both sides is narrowed, and a high-rigidity part 104 of the sheet-like carried material P while suppressing a deformation by rigidity; and a separation member 40 disposed between a straight front end when the front end of the sheet-like carried material P in the carrying direction is the high-rigidity part 104 and a curved front end when the front end in the carrying direction is the low rigidity part 105 and configured to divide a carrying direction of the sheet-like carried material P into two routes.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sheet-like conveyance device for conveying sheet-like conveyance materials having different thicknesses on opposite sides, such as a standing pouch having a bottom gusset portion, and in particular, both sides having different thicknesses are opposite to each other. The present invention relates to an apparatus for conveying a sheet-like conveyance object provided with a separation mechanism for automatically separating the sheet-like conveyance object.

  Conventionally, a bag having a bottom gusset portion such as a standing pouch has a sheet shape in which the bottom gusset portion is folded in a plane in the empty state before filling the contents. In carrying this, a large number of sheet-like bags are stacked and stored in the storage unit, and are sent out one by one from the storage unit and transferred to the next process. When transporting to the next process, for example, since it is necessary to transport the bottom gusset portion so that the bottom gusset portion faces forward in the transport direction, the sheet-like bag body stored in the storage portion is also sent out. In this case, the bottom gusset and the opening are aligned so that the bottom gusset faces forward.

JP-A-5-58458

However, since the sheet-like bag body stored in the storage unit is folded in a plane, if a large number of sheets overlap each other, it is difficult to distinguish even if the opposite ones are misplaced.
If a sheet-like bag body in the opposite direction is thrown in, the product will flow out to the next process as it is, and trouble will occur in the work in the next process. Therefore, the operator is strongly forced to use nerves when storing the pouch. It has been.
Therefore, it is conceivable to detect the image attached to the bag and switch the top and bottom of the pouch. However, in the case of a plain pouch, it is difficult to determine the reverse direction even with a color sensor or a camera.
Even if the top and bottom are detected, for example, if the mechanism is separated by a rejector, timing control and a high-speed actuator are required, which increases the cost of the equipment itself.
The present invention was made to solve the above-described problems of the prior art, and the object of the present invention is to provide a highly rigid portion possessed by the sheet-like conveyed product itself without detecting the orientation of the sheet-like conveyed item. Another object of the present invention is to provide a transport device for a sheet-like transported object that can mechanically switch the traveling direction using the characteristics of the low-rigidity portion.

In order to achieve the above object, the present invention provides:
One side (106) of two sides opposite to each other in the transport direction is a high-rigidity portion having high bending rigidity, and the other side (105) is a low-rigidity portion having low bending rigidity. A sheet-like conveyance apparatus for conveying
Transport means (30) for transporting the sheet-like transported object in the first transport direction X;
The sheet-like conveyance object is arranged at a predetermined distance in the direction orthogonal to the first conveyance direction with respect to the sheet-like conveyance object arranged downstream of the conveyance means and conveyed in the first conveyance direction. A pair of friction rotating parts (14, 24) that partially sandwich the sheet, and the friction rotating part conveys the low-rigidity part of the sheet-like conveyance object while deforming it in a direction in which the distance between both sides (102) is narrowed. A first roller pair (10) and a second roller pair (20) configured to convey the highly rigid portion of the sheet-like conveyance object while suppressing deformation by rigidity;
The deformation direction of the low-rigidity portion of the sheet-like transported material provided by the first roller pair and the second roller pair to the one side of the front and back surfaces of the sheet-like transported material is caused by the friction rotating portions. A restricting member (12b, 13b, 22b, 23b) that restricts the deformation and forms the curved portion (Pd) while allowing the deformation to the other side;
A linear front end when the front end in the transport direction of the sheet-like transported material is a high-rigidity part, facing the front end in the transport direction of the sheet-like transported material that has passed through the first roller pair and the second roller pair, It is arranged between the curved front end sides when the front end in the transport direction is a low-rigidity part, and the traveling direction of the sheet-like transported object is divided into two routes when the front end in the transport direction is a high-rigidity part and a low-rigidity part. And a separating member (40).
In addition, although the code | symbol corresponding to an Example is attached | subjected in the structure of the said invention, the code | symbol was attached | subjected for reference of drawing, and this invention is not limited to the structure and Example of drawing. .
With the above configuration, a curved portion is formed by the friction rotating portion of the first roller pair and the second roller pair when the conveyance direction front end side is a low-rigidity portion, and in the case of a high-rigidity portion, a planar state. Therefore, the separation member placed between the curved part in the case of the low-rigidity part and the flat part in the case of the high-rigidity part, and the case where the front end in the transport direction is the high-rigidity part and the low-rigidity part In this case, the sheet-like conveyed product can be divided into two routes.

The present invention can also be configured as follows.
1. The inclination direction of the rotation shaft of the friction rotating portion of at least one of the first roller pair and the second roller pair is perpendicular to the first transport direction passing through the friction rotating portion of the one roller pair. On the other hand, the other end of the rotating shaft on the opposite side to the friction rotating portion of the roller pair is inclined to the downstream side in the first transport direction.
If it does in this way, the direction of the conveyance force in each friction rotation part will become the direction narrowed toward the 1st conveyance direction downstream side, and the force which curves a sheet-like conveyance thing will arise.
2. The friction rotating part of the first roller pair is constituted by a pair of friction rotating bodies that are biased and fixed to one end side of the pair of roller shafts, and the friction rotating part of the second roller pair is the other end of the pair of roller shafts. It is comprised by a pair of friction rotating body fixed biased to the side.
If it does in this way, the position of a friction rotating part can be set to an appropriate position by changing the fixed position of the friction rotating body with respect to a roller shaft.
3. The regulating member includes a cylindrical first guide roller provided on the first roller pair and the second roller pair, and regulates the bending of the sheet-like conveyed product in the direction of the first guide roller, The conveyance of the sheet-like conveyance object according to any one of claims 1 to 3, wherein the conveyance to the opposite side to the first guide roller is allowed. It does not curve in the direction of the guide roller, and the bending direction of the sheet-like conveyed product can be reliably regulated.
4). The sheet-like conveyed product is a planar pouch with a bottom gusset portion folded, and a bottom side where the bottom gusset portion is folded is a high-rigidity portion, and an opening side on the opposite side is a low-rigidity portion.
When used in such a pouch, the direction of the opening side and the bottom side of the pouch can be distinguished.
5. The sheet-like conveyed product is configured to vertically feed with the planar front and back surfaces standing vertically.
By longitudinally feeding, space efficiency can be increased and the layout of the conveyance path can be set freely.
6). The sheet-like conveyed product is a mixture of sheet-sized conveyed products of different sizes of large size and small size, the front end side in the conveying direction of one of the large-sized and small-sized sheet-shaped conveyed products is a high-rigidity portion, and the other The front end in the conveyance direction of the sheet-like conveyed product is set in advance so as to be a low rigidity portion,
The separating member splits the large-sized sheet-shaped conveyed product and the small-sized sheet-shaped conveyed product into two routes.
7). On the upstream side of the conveying member, there is a stacking unit for loading sheet-like conveyed products of large size and small size, and sheet-like conveyed items are sent out one by one from the loading unit.
8). A collection unit that collects the sheet-like transported material is disposed on one of the two routes of the sheet-like transported material separated by the separation member.

  According to the present invention, the front end side in the conveyance direction can be detected without detecting the orientation of the high-rigidity portion and the low-rigidity portion of the sheet-like conveyance object by the friction rotating portion and the separation member of the first roller pair and the second roller pair. The traveling direction of the sheet-like conveyed product in the case of the high-rigidity portion and the case of the low-rigidity portion can be mechanically switched.

1A and 1B schematically show a sheet-like transport apparatus according to Embodiment 1 of the present invention, where FIG. 1A is a front view, FIG. 1B is a top view, and FIG. 1C is a left side view. D) is a right side view. FIG. 2 is a plan view showing a configuration example of the pouch of FIG. FIG. 3 is a top view illustrating a schematic configuration of a sheet-like conveyance object conveyance device according to the second embodiment of the present invention. 4A and 4B schematically show a sheet-like transport apparatus according to Embodiment 3 of the present invention, where FIG. 4A is a front view and FIG. 4B is a top view.

Below, the conveyance apparatus of the sheet-like conveyance thing of this invention is demonstrated in detail based on embodiment of illustration.
FIG. 1 schematically shows a conveying apparatus for a sheet-like conveyed product according to the present invention, and FIG. 2 shows a pouch as a sheet-like conveyed item to be conveyed.
First, the pouch P to be conveyed will be described with reference to FIG.
This pouch P is a so-called standing pouch provided with a folded bottom gusset portion 103, and the bottom gusset portion 103 is folded in a plane to form a sheet shape as a whole. That is, the left and right side edges of the pair of rectangular films 101, 101 are sealed by the side seal portions 102a, 102b, and the bottom gusset portion 103 in a folded form is sealed by the bottom seal portion 104 at the lower end.
In this pouch P, the bottom seal portion 104 on the bottom side 106 is a highly rigid portion, and the film 101, 101 on both the front and back surfaces and the folded bottom gusset portion 103 are combined so that four films are stacked, and the thickness is increased. The bottom gusset part 103 and the front and back film 101 by the seal part 104,
101 is sealed and has high rigidity.
On the other hand, the opening side 105 side serving as a filling port is a low-rigidity portion that is soft only by overlapping the front and back films 101, 101 and has a lower bending rigidity than the bottom seal portion 104. And the rigidity of both sides 102 is the same bending rigidity.

Next, with reference to FIG.1 and FIG.2, the structure of the conveyance apparatus of the pouch as a conveyance apparatus of a sheet-like conveyance thing is demonstrated.
The pouch transporting apparatus 1 has a pouch P with one side 102a facing down, the other side 102b facing up, and a planar surface 106 on one side with the planar front and back surfaces standing vertically. And a pair of feed rollers 30 as conveying means for conveying the pouch P in the first conveying direction X1 with one of the opening sides 105 on the other side facing forward, one by one. The pair of vertical rotating rollers 10 as a first roller pair including a pair of friction rotating bodies (friction rotating portions) 14 a and 14 b disposed on the downstream side in the conveying direction of the feed roller pair 30, and downstream of the vertical shaft roller pair 10. A pair of inclined shaft rollers 20 as a second roller pair provided with a pair of friction rotating bodies (friction rotating portions) 24a and 24b arranged on the side, first guide rollers 12b and 22b as regulating members, and a second guide roller 3b, comprises 23b and, a divider 40 as a separation member disposed on the downstream side of the tilting axis rollers 20. The divider 40 automatically switches the path of the pouch P with the bottom 106 facing forward and the pouch with the opening 105 facing forward to the first route A and the second route B.

The configuration of each part will be described in detail below.
(About the feed roller pair 30 which is a conveying means)
The feed roller pair 30 has a rotation shaft arranged vertically, and is composed of a pair of feed rollers 31 and 32 that form a nip portion that sandwiches the front and back surfaces of the pouch P. The front and back surfaces of the feed roller pair 30 are prevented from dropping at the nip portion. The pouch P is conveyed by being sandwiched with a uniform grip force in the vertical direction and rotated.
The feed rollers 31 and 32 have basically the same shape. In the illustrated example, the feed roller 31 is in contact with the front surface Pa side of the pouch P and the feed roller 32 is in contact with the back surface Pb side. The feed roller 32 on the side is the drive side, and the other feed roller 31 is driven to rotate. In the illustrated example, only one feed roller pair 30 is shown, but a plurality of feed roller pairs 30 may be provided along the conveyance path.
The feed rollers 31 and 32 have roller shafts 31a and 32a and cylindrical roller bodies 31b and 32b fixed to the roller shafts 31a and 32a, respectively. The upper and lower frames are rotatably supported by a frame and a gear (not shown) is provided with a drive transmission system, and a driving force is transmitted from a driving source such as a motor to the roller shaft 32a of one feed roller 32. The
The roller bodies 31b and 32b are made of an elastic body such as rubber, and the length thereof is longer than the width W of the pouch P (the width in the direction perpendicular to the conveying direction), and the roller bodies 31b and 32b are in contact with each other at a predetermined pressure over the entire width of the pouch P. As the feed rollers 31 and 32 are rotated by the frictional force of the contact portion, the feed rollers 31 and 32 are conveyed to the pouch P in a direction orthogonal to the feed rollers 31 and 32. A conveyance direction by the feed rollers 31 and 32 is defined as a first conveyance direction X1.

(About the vertical axis roller pair 10 and the inclined axis roller pair 20 having a pair of friction rotating portions)
The vertical axis roller pair 10 and the inclined axis roller pair 20 are arranged in the order of the vertical axis roller pair 10 and the inclined axis roller pair 20 on the downstream side of the feed roller pair 30 in the conveying direction at a predetermined interval in the conveying direction. Yes. The vertical axis roller pair 10 and the inclined axis roller pair 20 are separated from the pouch P conveyed in the first conveying direction X1 from the feed roller pair 30 by a predetermined distance in the direction orthogonal to the first conveying direction X1. Then, the pouch P is partially sandwiched, and the low rigidity portion of the pouch P on the opening side 105 side (the other side) is conveyed while being deformed in a direction in which the interval between the two sides 102 is narrowed. The bottom 106 side (one side) which is a part is provided with a pair of friction rotating bodies 14a, 14b; 24a, 24b configured such that the contact surface slides due to rigidity.
The pouch P is configured to be vertically fed. When the front side is the front surface Pa of the pouch P and the back side is the back surface Pb of the pouch P as shown in FIG. The first vertical axis roller 10A is located on the front surface Pa side, and the second vertical axis roller 10B is located on the back surface side of the pouch P.
The first vertical shaft roller 10A on the front surface side includes a roller shaft 11a extending vertically and a roller shaft 1
An end guide roller 12a fixed to 1a, an intermediate guide roller 13a, and the friction rotating body 14a described above are provided.
On the other hand, the second vertical shaft roller 10B on the back side includes a roller shaft 11b extending vertically, a first guide roller 12b constituting a cylindrical regulating member fixed to the roller shaft 11b, and a friction rotating body 14a such as rubber. The friction rotating body 14b is disposed at the opposing position, and the second guide roller 13b is positioned below the friction rotating body 14a. The friction rotators 14a and 14b are biased toward one end of the roller shafts 11a and 11b. In this example, the friction rotators 14a and 14b are located on the lower side and strongly grip the lower side of the pouch P, while the end guide rollers 12a and the intermediate guide rollers 13a. The first guide roller 12b is positioned above the roller shafts 11a and 11b and guides the conveying direction of the pouch P.

The inclined shaft roller pair 20 includes a first inclined shaft roller 20A located on the front surface Pa side of the pouch P and a second inclined shaft roller 20B located on the back surface side of the pouch P.
The first inclined shaft roller 20A on the front side includes a roller shaft 21a, an end guide roller 22a fixed to the roller shaft 21a, and a friction rotating body 24a.
On the other hand, the second inclined shaft roller 20B on the back side is provided at a position corresponding to the roller shaft 21b, the first guide roller 22b constituting a cylindrical regulating member fixed to the roller shaft 21b, and the friction rotating body 24a. A friction rotating body 24b such as rubber and a second guide roller 23b positioned above the friction rotating body 24b are provided. The friction rotators 24a and 24b are located at positions biased toward the other ends of the roller shafts 21a and 21b, in this example, on the upper side, and the pouch P is positioned more than the grip position of the friction rotators 14a and 14b of the vertical shaft roller pair 10. While gripping the upper side strongly, the end guide roller 22a and the first guide roller 22b are located below the roller shafts 21a and 21b,
Acts as a restricting member for guiding the conveyance direction of the pouch P.
The inclination directions of the roller shafts 21a and 21b, which are the rotation shafts of the friction rotating bodies 24a and 24b of the inclined shaft roller pair 20, pass through the nip portion of the friction rotating bodies 24a and 24b to an orthogonal line Y orthogonal to the first transport direction X1. On the other hand, the shaft tip (upper end) is arranged to be inclined downstream in the first transport direction X1. The shaft tips (upper ends) of the roller shafts 21a and 21b are the ends of the other vertical roller pair 10 opposite to the friction rotating bodies 14a and 14b when viewed in the direction orthogonal to the first transport direction X. In the illustrated example, the roller shafts 11a and 11b, which are the rotation shafts of the friction rotating bodies 14a and 14b of the vertical axis roller pair 10, are orthogonal to the first transport direction X1, and the friction rotating bodies 24a and 24b of the inclined shaft roller pair 20 are. Is inclined by a predetermined angle θ with respect to the roller shafts 11a and 11b of the vertical axis roller pair 10 which is the rotation axis of the rotation axis, and is inclined by 5 ° in this embodiment.

(About the divider 40 as a separating member)
The divider 40 faces the front end in the transport direction of the pouch P that has passed through the vertical shaft roller pair 10 and the inclined shaft roller pair 20, and the flat surface portion Pc in the case where the front end in the transport direction of the pouch P is the base 106 that is a highly rigid portion. The conveyance direction front end is disposed between the curved portions Pd in the case of the opening side 105 having a low rigidity portion. Therefore, when passing through the divider 40, the pouch with the opening side 105 facing forward is guided to the front surface 40 a of the divider 40 and conveyed to the first route A on the downstream side, and the pouch with the bottom side 106 facing forward is Then, it is guided to the rear surface 40b of the divider 40 and guided to the second route B on the downstream side in the transport direction.
That is, when viewed from the upper surface side, the divider 40 is a plate-like member whose tip end portion extends toward the downstream side in the first transport direction X1 and extends in the vertical direction as shown in FIG. The opposed end portion 40d facing the pair of axial rollers 20 has an upper end projecting toward the upstream side in the first transport direction X1, and gradually inclined downward toward the downstream side in the first transport direction X1. The projecting end portion 40c located at the upper end is a flat portion Pc in the case where the front end of the pouch P in the transport direction is the bottom portion 106 which is a high rigidity portion, and the opening side 105 where the front end in the transport direction is a low rigidity portion. It arrange | positions between the curved parts Pd.
Further, the protruding end portion 40c of the divider 40 is a single-edged inclined surface 40e whose front surface side gradually inclines toward the back surface side toward the upstream side in the first transport direction X1 when viewed from the upper surface side. The back surface 40b side is a vertical surface along the first transport direction X1.
In the first embodiment, a tapered guide 50 is provided between the inclined shaft roller pair 20 and the divider 40 so that the front end of the pouch P and the edge of the side seal portion 102 are in contact with each other. The taper guide 50 is provided on the back surface of the pouch P with respect to the extended surface of the virtual transport surface F passing through the nip portion between the first and second vertical shaft rollers 10A and 10B on the front surface side and the back surface side of the pair of vertical shaft rollers 10. A plate-like member having a predetermined thickness extending in a direction orthogonal to the first transport direction X1 along the Pb side, that is, a direction perpendicular to the virtual transport surface F, and an edge on the virtual transport surface F side However, the inclined guide surface 50d is gradually inclined toward the direction away from the virtual transport surface F toward the upstream side in the first transport direction X1. The tip of the inclined guide surface 50d is substantially located on the virtual transport surface F.

Next, the operation of the pouch conveying apparatus will be described.
When the low-rigidity portion side (opening side 105 side) is facing forward When the pouch P is fed by the feed roller pair 30 with the opening side 105 facing forward, the opening side 105 at the front end in the transport direction is the vertical axis roller pair. The pouch P is transported in the first transport direction X1 until it passes through 10 and reaches the inclined shaft roller pair 20.
First, when the opening side 105 at the front end in the conveyance direction of the pouch P passes through the vertical axis roller pair 10, the friction rotating bodies 14a and 14b grip one side side (lower side) of the pouch P (in that case) The first guide roller 12b and the second guide roller 13b as the regulating members act as guides for the pouch P), and a conveying force is applied in the horizontal direction with respect to the first conveying direction X1, and then the inclined shaft roller After passing the pair 20, the friction rotating bodies 24a and 24b of the inclined shaft roller pair 20 grip the other side 102b side (upper side) of the pouch P, so that the diagonal direction with respect to the first transport direction X1 is illustrated. In the illustrated example, a transport force is applied obliquely downward with respect to the first transport direction X1. On the other hand, a conveying force is applied in the first conveying direction X1 by the friction rotating bodies 14a and 14b of the pair of vertical shaft rollers 10, and the conveying force in the direction of narrowing the upper and lower sides 102 acts on the pouch P. The pouch P tends to be deformed by bending the front surface Pa or the back surface Pb in a direction orthogonal to the transport surface. However, the back surface Pb of the pouch P includes the first guide roller 12b and the second guide roller 13b as the regulating members of the vertical shaft roller pair 10, and the first guide roller 22b and the second guide as the regulating members of the inclined shaft roller pair 20. Since the bending deformation to the back surface side is restricted by the roller 23b, the bending portion Pd is bent and deformed to the front surface Pa side in a free state and extends from the opening side 105 side of the pouch P to the upstream side. Appear.
When the opening side 105 of the curved pouch P passes through the inclined shaft roller pair 20, both sides 102 and 102 come into contact with the inclined guide surface 50 d of the taper guide 50, and the curved portion Pd is positioned at both sides 102 and 102. Is aligned with the virtual transport surface F by the inclined guide surface 50d of the taper guide 50, the curved portion Pd faces the protruding end portion 40c of the divider 40. A predetermined amount of the curved portion Pd is formed in the stroke α from the pair of vertical shaft rollers 10 to the protruding end portion 40c.
When the pouch P is further conveyed, the back surface of the curved portion Pd is guided to the front surface 40a side of the divider 40, and the pouch P is guided to the first route A side through the divider 40. After entering the projecting end 40c into the curved portion Pd, the back surface of the pouch P comes into wide contact with the front surface 40a of the divider 40 that gradually spreads and is reliably guided to the first route A side.

When transporting with the highly rigid portion side (bottom side 106 side) facing forward Even when transporting with the base 106 side of the pouch P facing forward, the pouch P is first transported until the tip of the pouch P reaches the inclined shaft roller pair. It is conveyed in the direction X1.
First, when the base 106 which is the front end of the pouch P passes through the vertical axis roller pair 10, the friction rotating bodies 14a and 14b grip one side (lower side) of the pouch P (in this case, the first side). The first guide roller 12 and the second guide roller 13 act as a guide for the pouch P). When a conveying force is applied in the horizontal direction with respect to the first conveying direction X1, and then passes through the inclined shaft roller pair 20, By gripping the other side 102b side (upper side) of the pouch P by the friction rotating bodies 24a and 24b of the inclined shaft roller pair 20, the first conveyance direction is X1 in the oblique direction with respect to the first conveyance direction X1. In contrast, a conveying force is applied obliquely downward. However, since the bending rigidity of the bottom seal portion 104 is high, the reaction force for maintaining the shape of the bottom seal portion 104 is larger, the contact portions of the friction rotating bodies 24a and 24b slip, or the friction rotating bodies 24a and 24b Due to the elastic deformation, the pouch P passes through the inclined shaft roller pair 20 without being deformed in a flat state. The flat base 106 contacts the inclined guide surface 50d of the taper guide 50 so that the positional relationship with the divider 40 is aligned, and the front surface side of the bottom seal portion 104 enters the back surface 40b side of the divider 40. P is guided to the second route B on the back side of the divider 40.
Thus, according to the present invention, the rigidity of the front end side of the pouch P in the conveying direction and the friction conveying of the friction rotating members 14a and 14b of the vertical shaft roller pair 10 and the friction rotating members 24a and 24b of the inclined shaft roller pair 20 are achieved. Since the bending portion is mechanically formed or not formed depending on the balance with the force and is divided into the front surface 40a side and the back surface 40b side of the divider 40, it is necessary to detect the direction of the pouch with a sensor or the like. No, the route of the pouch P can be switched.

Next, another embodiment of the present invention will be described.
In the following description, only differences from the first embodiment will be described, and the same components will be denoted by the same reference numerals and detailed description thereof will be omitted.
[Embodiment 2]
FIG. 3 is a top view of a conveyance device that uses the pouch conveyance device of the first embodiment and distributes a small size pouch and a large size pouch.
This pouch conveying apparatus is provided with a mixed stock portion in which a small size pouch and a large size pouch are mixedly mounted. Hereinafter, when it is necessary to distinguish between a small-sized pouch and a large-sized pouch, the small-sized pouch will be referred to as P1, and a large-sized pouch will be referred to as P2. It shall be.
In the mixed stock section 60, a large size pouch P1 and a small size pouch P2 are each divided into a plurality of bundles in a stocker 61, and a plurality of large size pouch bundles P10 and small size pouch bundles P20. However, they are arranged vertically and alternately in a vertical position. When the pouches P are bundled, the pouch bases 106 and the opening sides 105 are bundled so as to overlap each other, and the pouch bundles P10 and P20 are thicker on the bottom side 106 than on the opening side 105 side. The 106 side spreads in a fan shape.
Therefore, when storing, the large-sized pouch bundle P10 is stored with the bottom 106 side facing one side of the stocker 61, and the small-sized pouch bundle P20 is stored with the bottom 106 side facing the other side of the stocker. Yes. That is, when the large-sized pouch bundle P10 and the small-sized pouch bundle P20 are arranged so that the thick bases 106 are alternately positioned, the storage efficiency is improved and one side of the stocker 61 is arranged when horizontally arranged. The pouches are prevented from falling over by equalizing the interval between the pouches stored on the other side.
The pouches P1 and P2 of the pouch bundles P10 and P20 arranged horizontally are sent out one by one from the front end in the arrangement direction in a vertical posture in a direction orthogonal to the arrangement direction. At the front end, a sheet feeding portion 63 is provided. In the sheet feeding section 63, for example, the feeding roller 64 feeds the pouches P one by one toward the lower feed roller pair 30. On the other hand, the accommodated pouch P is provided with a feeding means (not shown) that pushes forward from the rear in the arrangement direction.
The pouch P is fed in such a manner that the large-sized pouch bundle P10 is fed with the opening side 105 facing forward, and the small-sized pouch bundle P20 is fed with the bottom 106 side facing forward. The pouch P delivered from the mixed stock unit 60 is conveyed toward the vertical axis roller pair 10 by the plurality of feed roller pairs 30 and 30.
Then, the small-sized pouch P2 conveyed with the bottom 106 facing forward passes through the vertical axis roller pair 10 and the inclined axis roller pair 20 without being curved, and the front end in the conveying direction is along the back surface 40b of the divider 40. To the second route B.
The front end of the large-sized pouch P1 conveyed with the opening 105 facing forward is curved by the vertical axis roller pair 10 and the inclined axis roller pair 20, and the curved portion Pd is the front of the divider 40. Guided to the surface 40a and distributed to the first route A.
In this way, if the large-sized pouch P1 and the small-sized pouch P2 are stored in the mixed stock portion 60 with the base 106 side and the opening side 105 facing in opposite directions, the large-sized pouch P1 and the small-sized pouch P1 are small. The size pouch P2 can be distributed to different routes.
In the above description, the large-sized pouch P1 is transported with the opening side 105 side facing forward, and the small-sized pouch P2 is transported with the bottom side 106 facing forward. May be configured such that the bottom side 106 is conveyed forward and the small size pouch is conveyed with the opening side 105 side directed forward.

[Embodiment 3]
4A and 4B show a pouch conveying apparatus according to Embodiment 3 of the present invention, in which FIG. 4A is a front view and FIG. 4B is a top view.
In the third embodiment, using the pouch conveyance device of the first embodiment, a normal pouch is conveyed to one route (main line), and a reverse pouch is distributed to a reject line off the main line. It is a thing. In this embodiment, the pouch that is transported in a state in which the opening side 105 is forward in the transport direction is facing normal, the pouch that is transported in the state in which the base 106 is forward in the transport direction is reversed, and the first route A is the main line. In the following description, the normal route pouch is P3 and the reverse pouch is P4.
A conveyor belt 80 is disposed on the first route A of the main line, and conveys the normal pouch P3 downstream. A guide wall 43 continuous from the divider 40 extends on the side edge of the conveyor belt 80, and the normal pouch P <b> 3 is conveyed along the front surface of the guide wall 43.
On the other hand, a reject tray 90 as a storage unit is arranged on the second route B which is a reject line. The reject tray 90 is disposed below the conveying belt 80 on the back side of the guide wall 43, and a reverse pouch P4 guided along the back surface 40b of the divider 40 is allowed to fall freely. The pouch P4 that has fallen freely in the vertical direction is fallen to the bottom surface of the reject tray 90 and stored.
In the above description, the case where the pouch P is conveyed with the opening side 105 side facing forward is set as the normal direction, but the case where the pouch P is conveyed with the bottom side 106 side facing forward may be set as the normal direction.

  In the above-described embodiments, a so-called standing pouch having a bottom gusset portion has been described as an example of the sheet-like conveyed product. Applicable if no pouch. In addition, regardless of the pouch, switching of the path of a sheet-like transported object, such as a sheet, sheet film, various plate materials, etc., which has high rigidity on one side and low rigidity on the other side. Can be widely applied.

1 Pouch Conveyor (Sheet Conveyor)
10 Vertical axis roller pair 10A First vertical axis roller (first roller pair)
11a roller shaft, 12a end guide roller,
13a Intermediate guide roller, 14a Friction rotating body 10B Second vertical shaft roller 11b Roller shaft, 12b First guide roller, 13b Second guide roller 14b Friction rotating body 20: Inclined shaft roller pair (second roller pair)
20A First inclined shaft roller 21a Roller shaft, 22a End guide roller, 24a Friction rotating portion 20B Second inclined shaft roller 21b Roller shaft, 22b First guide roller, 23b End guide roller 24b Friction rotating body 30 Feed roller pair ( Conveying roller pair)
31 Feed roller,
31a Roller shaft, 31b Roller body 32 Feed roller 32a Roller shaft, 32b Roller body 40 Divider 40a Front surface, 40b Back surface, 40c Protruding end, 40d Opposing end 40e Inclined surface 43 Guide wall 50 Taper guide 50d Inclined guide surface 60 Mixed Stock Department,
61 Stocker, 63 Single-wafer feeding part, 64 Feeding roller 80 Conveying belt 90 Reject tray P Pouch 101 Film, 102a, b Side seal part 103 Bottom gusset part, 104 Bottom seal part (high rigidity part), 105 Open side, Bottom side 106Pa Front surface, Pb Back surface Pc Plane portion, Pd Curved portion A First route, B Second route F Virtual transport surface P1 Pouch (large size), P10 Pouch bundle P2 Pouch (small size), P20 Pouch bundle P3 Pouch ( Normal orientation), P4 pouch (reverse orientation)
X1 1st transport direction, Y orthogonal line

Claims (9)

Sheet-shaped transport that transports sheet-shaped transported objects in which one side of the two sides opposite to each other in the transport direction is a high-rigidity part with high bending rigidity and the other side is a low-rigidity part with low bending rigidity An apparatus for transporting objects,
Conveying means for conveying the sheet-like conveyed product in the first conveying direction;
The sheet-like conveyance object is arranged at a predetermined distance in the direction orthogonal to the first conveyance direction with respect to the sheet-like conveyance object arranged downstream of the conveyance means and conveyed in the first conveyance direction. A pair of friction rotating parts that partially sandwich the sheet, and the friction rotating part conveys the low-rigidity part of the sheet-like conveyance object while deforming it in a direction in which the distance between both sides is narrowed, For the high rigidity portion, a first roller pair and a second roller pair configured to convey while suppressing deformation by rigidity,
The deformation direction of the low-rigidity portion of the sheet-like transported material provided by the first roller pair and the second roller pair to the one side of the front and back surfaces of the sheet-like transported material is caused by the friction rotating portions. A restricting member that restricts the deformation and forms a curved portion while allowing deformation to the other side;
A linear front end when the front end in the transport direction of the sheet-like transported material is a high-rigidity part, facing the front end in the transport direction of the sheet-like transported material that has passed through the first roller pair and the second roller pair, It is arranged between the curved front end sides when the front end in the transport direction is a low-rigidity part, and the traveling direction of the sheet-like transported object is divided into two routes when the front end in the transport direction is a high-rigidity part and a low-rigidity part. And a separating member.   The inclination direction of the rotation shaft of the friction rotating portion of at least one of the first roller pair and the second roller pair is perpendicular to the first transport direction passing through the friction rotating portion of the one roller pair. The sheet-like conveyance object according to claim 1, wherein an end portion of the rotation shaft opposite to the friction rotation portion of the other roller pair is inclined to the downstream side in the first conveyance direction. Transport device.   The friction rotating part of the first roller pair is constituted by a pair of friction rotating bodies that are biased and fixed to one end side of the pair of roller shafts, and the friction rotating part of the second roller pair is the other end of the pair of roller shafts. The conveying apparatus for a sheet-like conveyed product according to claim 1 or 2, comprising a pair of friction rotating bodies that are biased and fixed to the side.   The regulating member includes a cylindrical first guide roller provided on the first roller pair and the second roller pair, and regulates the bending of the sheet-like conveyed product in the direction of the first guide roller, The sheet conveying object conveying apparatus according to any one of claims 1 to 3, wherein the conveying apparatus is configured to allow bending to the opposite side of the first guide roller.   The sheet-like conveyed product is a planar pouch with a bottom gusset portion folded, wherein the bottom side of the bottom gusset portion is a high-rigidity portion, and the opposite opening side is a low-rigidity portion. The conveying apparatus of the sheet-like conveyed product of any one of 1-4.   The sheet-like conveyed product conveying apparatus according to any one of claims 1 to 5, wherein the sheet-like conveyed item is configured to vertically feed a flat front and back surface in a vertical direction. The sheet-like conveyed product is a mixture of sheet-sized conveyed products of different sizes of large size and small size, the front end side in the conveying direction of one of the large-sized and small-sized sheet-shaped conveyed products is a high-rigidity portion, and the other The front end in the conveyance direction of the sheet-like conveyed product is set in advance so as to be a low rigidity portion,
The conveying apparatus of the sheet-like conveyed product of any one of Claim 1 thru | or 6 which branches a large-sized sheet-shaped conveyed product and a small-sized sheet-like conveyed product into two routes by the said separation member.   The sheet-like conveyance according to claim 7, further comprising: a stacking unit configured to load a large-size and a small-size sheet-like conveyance object on the upstream side of the conveyance member, and the sheet-like conveyance item is sent out one by one from the loading unit. Material transfer device.   The sheet-like conveyance according to any one of claims 1 to 6, wherein a recovery unit that collects the sheet-like conveyance object is disposed on one of two routes of the sheet-like conveyance object separated by the separation member. Material transfer device.

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