JP5084415B2 - Bag box packing machine - Google Patents

Description

  The present invention relates to a bag boxing machine capable of appropriately packing a bag into a case.

2. Description of the Related Art Conventionally, as a bag packing machine for packing a bag into a case, for example, a bag packing device described in JP-A-6-92457 is known. The conventional bag boxing machine includes an alignment line and a charging line that are parallel to each other, a driving rubber roller and a driving belt guide positioned between the alignment line and the charging line, and an extruding means that pushes the bag on the alignment line toward the charging line. The bag pushed out by the push-out means is accelerated by the drive rubber roller and the drive belt guide and is dropped and stored in a case on the charging line.
JP-A-6-92457

  However, as in the conventional bag box packing machine, in the configuration in which the bag is accelerated by the pushing means and is accelerated by the drive rubber roller and the drive belt guide and stored in the case, the bag is collapsed, for example, the tilted posture. There is a risk of boxing.

  This invention is made | formed in view of such a point, and it aims at providing the bag boxing machine which can pack a bag into a case appropriately.

請 Motomeko 1 bags packer according is a bags box packing machine for packing a deformable bags the article is accommodated in the case, which is movable between a close position and a separate position, the approach position When in the position, the bag is transported to the article stop position, and when in the separated position, the pair of article transport means forming a drop opening for dropping the bag is interposed between the bag and the article stop position. A bag adjusting means for deforming the bag by pressing, and a case conveying means disposed below the article conveying means for conveying the case, wherein the bag adjusting means is a corner for pressing a plurality of corners of the bag. a Department pressing body, possess a side surface portion pressing member for pressing at least two opposite sides of the bags, bags after deformation by the Seibukuro means, falls from the drop opening, said case conveying means Upper case It is intended to be accommodated within.

Bags packer of claim 2, in bags cartoning machine according to claim 1 Symbol placement, Seibukuro means smaller than the opening size of the upper opening of the planar dimensions of the pouches case by deforming by pressing the bags Is.

Bags cartoning machine according to claim 3, wherein, in claim 1 or 2 bags cartoning machine described in the case conveying means is adapted to allow lifting between positions loading and unloading the article storage position and the case, said case conveying means the An empty case carry-in means for carrying an empty case into the case carrying means when the case carrying position is located, and when the case carrying means is located at the case carry-in / out position, A stored case unloading means for unloading the case is provided.

According to a fourth aspect of the present invention, there is provided the bag boxing machine according to the third aspect , further comprising case guide means for guiding the case on the case conveying means when the case conveying means is moved up and down.

The bag boxing machine according to claim 5 is the bag boxing machine according to claim 3 or 4 , wherein the bag boxing machine is inserted into the case on the case transporting means by raising the case transporting means, and the drop opening is inserted in the inserted state. An article guide means for guiding a bag from the section is provided.

  According to the present invention, the bag after deformation by the bag adjusting means falls from the opening for dropping formed between the paired article conveying means and is stored in the case on the case conveying means. Can be boxed properly in the case.

  An embodiment of a bag boxing machine according to the present invention will be described with reference to the drawings.

  In FIG. 1 to FIG. 3, reference numeral 1 denotes a bag boxing machine. The bag box packing machine 1 sequentially puts, for example, deformable bags (bag-like articles) W having a substantially rectangular shape in plan view one by one with respect to the case C. Automatic boxing equipment for boxing. In other words, one bag W is stored in one case C by the bag boxing machine 1, and the cases C in which one bag W is stored are sequentially discharged. The bag W is a rice bag which is a deformable bag in which, for example, rice grains (articles) are contained in a resin or paper bag. The case C is, for example, a foldable container or the like, and has an upper surface opening shape having a substantially rectangular upper surface opening C1, and includes a substantially rectangular bottom surface portion C2 and four side surface portions C3 rising from the periphery of the bottom surface portion C2. Have.

  The bag and box filling machine 1 forms a pair facing each other, for example, a pair of article conveying means 2 that conveys the bag W in the conveying direction (right direction in FIG. 1), and one bag W to the article conveying means 2. Article carrying means 3 for sequentially carrying in one by one.

  The article carry-in means 3 is, for example, a belt conveyor, and has a conveyor belt 5 that rotates with a driving force from a driving means such as a motor to convey the bag W in the conveyance direction.

  The pair of article conveying means 2 can move between the approach position and the separation position, that is, can move toward and away from each other, and conveys the bag W to the preset article stop position when in the approach position. A drop opening 6 for dropping the bag W is formed between them when the bag is in the position.

  Each article transport means 2 is, for example, a belt conveyor, similar to the article carry-in means 3, and includes a transport belt 7 that rotates with a driving force from a driving means such as a motor to transport the bag W in the transport direction. .

  Each article conveying means 2 is supported by a moving frame 10 that moves along a guide 9 fixed to the machine frame 8, and a rod portion 12 of a cylinder 11 that is a driving means is connected to the moving frame 10. ing. The rod portion 12 can go in and out of the cylinder body portion 13, and the cylinder 11 expands and contracts when the rod portion 12 goes in and out. When the cylinder 11 is extended, both the article conveying means 2 simultaneously move to the approach position and enter a closed state close to each other. When the cylinder 11 is contracted, both the article conveying means 2 are simultaneously moved away to the separation position and are opened apart from each other, and a drop opening 6 is formed between the both article conveying means 2. That is, in the open state, a drop opening 6 larger than the bag W is formed between the conveyance terminal end of one article conveyance means 2 on the article carry-in means 3 side and the conveyance start end of the other article conveyance means 2. Is done. Since the moving frames 10 of the both article conveying means 2 are connected by an endless interlocking belt 14, the both article conveying means 2 are synchronized by the interlocking belt 14 and moved toward and away at the same speed.

  Furthermore, a stopper means 15 is provided above the other article transporting means 2 so as to abut the front surface of the bag W in the transport direction and stop the bag W at the article stop position. The stopper means 15 is composed of, for example, a pair of front stopper plates 16 that are spaced apart from each other.

  The bag boxing machine 1 stops at the article stop position by contact with the stopper means 15 and deforms the bag W across the article conveying means 2 by pressing so that the plane dimension is reduced, and sets the bag. Bag-sizing means 21 is provided. For example, the bag-sizing unit 21 deforms the bag W so as to be reduced toward the center side by pressing, thereby reducing the plane dimension of the bag W smaller than the opening dimension of the upper surface opening C1 of the case C.

  The bag adjusting means 21 presses the four corner pressing bodies 22 that press the four corners of the bag W and move it toward the center, and presses at least two opposite side surfaces of the bag W, that is, for example, the front and rear surfaces with respect to the conveying direction. Then, there are two side surface pressing bodies 23 that make the longitudinal dimension, which is one dimension of the bag W, smaller than the opening dimension of the upper surface opening C1 of the case C. The lateral dimension, which is the other dimension of the bag W, is smaller than the opening dimension of the upper surface opening C1 from before the deformation.

  The corner pressing body 22 is configured by, for example, a circular pressing plate 25, and a rod portion 27 of a cylinder 26 serving as a driving unit is coupled to the pressing plate 25. The rod portion 27 can enter and exit from the cylinder body portion 28, and the cylinder 26 expands and contracts when the rod portion 27 enters and exits. The corner pressing body 22 can be moved between the pressing position and the standby position by the expansion and contraction of the cylinder 26, that is, can advance and retreat with respect to the corner of the bag W stopped at the article stop position. That is, when the cylinder 26 is extended, the four corner pressing bodies 22 simultaneously move toward the pressing position toward the bag W and press the corners of the bag W to be deformed. When the cylinder 26 is contracted, the four corner pressing bodies 22 are simultaneously moved to the standby position and are separated from the corners of the bag W after the deformation. Even if the corner pressing body 22 is separated, the corner of the bag W remains deformed.

  The side surface pressing body 23 is constituted by, for example, a rectangular pressing plate 31, and a rod portion 33 of a cylinder 32 serving as driving means is coupled to the pressing plate 31. The rod portion 33 can be moved in and out of the cylinder body portion 34, and the cylinder 32 is expanded and contracted by the rod portion 33 being moved in and out. The side surface pressing body 23 can be moved between the pressing position and the standby position by the expansion and contraction of the cylinder 32, that is, can be moved back and forth with respect to the side surface portion of the bag W stopped at the article stop position. That is, when the cylinder 32 is extended, the two side surface pressing bodies 23 simultaneously move toward the pressing position toward the bag W and press and deform the front and rear surface portions in the conveying direction of the bag W. When the cylinder 32 is contracted, the two side surface pressing bodies 23 are simultaneously moved to the standby position and are separated from the front and rear surface portions in the transport direction of the bag W after deformation. Even if the side surface pressing body 23 is separated, the front and back surface portions of the bag W are still deformed.

  Here, the two corner pressing bodies 22 and the one side surface pressing body 23 located above the one article conveying means 2 can move up and down so as not to interfere with the bag W being conveyed. That is, the machine frame 8 is provided with a rotating frame 36 so as to be rotatable in the vertical direction about the support shaft 37, and three cylinders 26, 32 for moving the pressing bodies 22, 23 are provided on the rotating frame 36. It is supported. Further, a rod portion 39 of a cylinder 38 which is a driving means is connected to the tip end portion of the rotating frame 36. The rod portion 39 can enter and exit from the cylinder main body 40, and the cylinder 38 expands and contracts when the rod portion 39 enters and exits. When the cylinder 38 is extended, the rotating frame 36 is rotated upward about the support shaft 37, and the two corner pressing bodies 22 and the one side pressing body 23 are retracted so as not to interfere with the bag W being conveyed. Move up to position. When the cylinder 38 is contracted, the rotation frame 36 is rotated downward about the support shaft 37, and the two corner pressing bodies 22 and the one side surface pressing body 23 are positioned above the other article conveying means 2. The two corner pressing bodies 22 and one side surface pressing body 23 are moved down to the same height position. Note that the side surface pressing body 22 positioned above the other article transporting means 2, that is, the front surface pressing body that presses and deforms the front surface of the bag W in the transport direction moves between the pair of front stopper plates 16.

  Further, as shown in FIG. 4, side guide plates 41 serving as guide means are disposed at positions facing left and right side portions with respect to the conveyance direction of the bag W stopped at the article stop position. Located above the upper surface opening C1 of the case C. Each side guide plate 41 has a main body plate portion 42 along the conveying direction of the article conveying means 2, and inclined plate portions 43 that are inclined with respect to the conveying direction are connected to both ends of the main body plate portion 42. ing.

  Further, the bag boxing machine 1 includes a case transporting means 51 which is disposed below the both article transporting means 2 in the open state and which can move up and down to transport the case C in the transporting direction (rightward in FIG. 1). An empty case carrying means 52 for carrying an empty case C into the means 51, and a stored case carrying means 53 for carrying the case C in which the bag W is stored from the case carrying means 51 to the outside. .

  The case transport means 51 can be moved up and down between the article storage position and the case carry-in / out position. When the case transport means 51 is located at the article storage position, the case transport means 51 is placed on the case C placed on the transport surface 55 from the drop opening 6. When the bag W is stored and is located at the case loading / unloading position, the case C is loaded / unloaded onto the transfer surface 55.

  The case conveying means 51 is, for example, a roller conveyor, and includes a plurality of conveying rollers 56 that form a conveying surface 55 and rotate by driving force from driving means such as a motor to convey the bag W in the conveying direction, and convey the case C. And guide plates 57 on both sides in the conveying direction for guiding in the direction. The case conveying means 51 is supported by an elevating frame 59 that moves up and down along a guide 58 fixed to the machine frame 8, and a rod 62 of a cylinder 61 that is a driving means is connected to the elevating frame 59. Yes. The rod portion 62 can be moved in and out of the cylinder body portion 63, and the cylinder 61 expands and contracts when the rod portion 62 moves in and out. When the cylinder 61 is extended, the case conveying means 51 rises to the article storage position, and the case C on the conveying surface 55 comes close to the upper article conveying means 2. When the cylinder 61 is contracted, the case transport means 51 is lowered to the case carry-in / out position, and the transport surface 55 is located on the same surface as the transport surfaces 65 and 66 of the empty case carry-in means 52 and the stored case carry-out means 53. It becomes a state.

  The empty case carrying-in means 52 and the stored case carrying-out means 53 are, for example, roller conveyors, similar to the case carrying means 51, which constitute the carrying surfaces 65 and 66 and are rotated by a driving force from a driving means such as a motor. Has a plurality of transport rollers 67 and 68 for transporting in the transport direction.

  Further, the bag boxing machine 1 includes a case guiding means 71 for guiding the case C on the case conveying means 51 when the case conveying means 51 is moved up and down, and an inside of the case C on the case conveying means 51 by raising the case conveying means 51. And an article guide means 72 for guiding the bag W from the drop opening 6 to the vicinity of the bottom C2 of the case C in the inserted state.

  The case guide means 71 is composed of, for example, a pair of opposite side surfaces C3 of the case C on the case transport means 51, that is, a guide roller 73 that is a plurality of free rollers that guide, for example, front and rear surface portions in the transport direction. Each guide roller 73 is attached to a roller support frame 74 fixed to the machine frame 8 so as to be rotatable about a shaft 75.

  The article guiding means 72 is constituted by a plurality of, for example, four substantially trapezoidal elastic guide plates 76 that guide, for example, four sides, which are the periphery of the falling bag W, from the front, rear, left and right directions. . Each elastic guide plate 76 has an upper end portion fixed to the machine frame 8 and a lower end portion that is a free end portion, and is inclined with respect to the vertical direction so that the lower end side is located on the center side of the case C. Then, each elastic guide plate 76 is pushed by the falling bag W and elastically deformed to rotate around the upper end side toward the side C3 side of the case C. Returns to the original tilted state by force.

  Next, the operation of the bag box packing machine will be described.

  As shown in FIGS. 5 (a) and 5 (b), a substantially rectangular bag (for example, one having poor fluidity) W in a plan view having a longitudinal direction in the transport direction is closed by the article carry-in means 3. It is carried into the transport means 2 and transported in the transport direction by both closed article transport means 2. At this time, the two corner pressing bodies 22 and one side surface pressing body 23 located above the one article conveying means 2, that is, the pressing bodies 22 and 23 on one side do not interfere with the bag W being conveyed. In addition, the pivot frame 36 is located at the retracted position by pivoting upward.

  Then, as shown in FIGS. 6 (a) and 6 (b), the bag W is stopped at the article stop position on the both article conveying means 2 in the closed state by contacting the stopper means 15, and both the article conveying means 2. It will be in a state straddling. After passing the bag W, the rotating frame 36 rotates downward, and the pressing bodies 22 and 23 on one side are located at the same height position as the pressing bodies 22 and 23 on the other side and face each other.

  Next, as shown in FIGS. 7A and 7B, the four corner pressing bodies 22 of the bag adjusting means 21 are simultaneously moved from the standby position to the pressing position, and the four corner pressing bodies 22 use the bag items. The corners of W are pressed and deformed toward the center, and as a result, the bag W is in a state where the four corners are recessed.

  Subsequently, as shown in FIGS. 8A and 8B, after the four corner pressing bodies 22 return to the standby position, the two side surface pressing bodies 23 of the bag regulating means 21 are moved from the standby position to the pressing position. The front and rear surface portions in the conveyance direction of the bag W are deformed by being pressed toward the center side by these two side surface pressing bodies 23, and as a result, the bag W has a substantially square shape in plan view. The dimension becomes smaller than the opening dimension of the upper surface opening C1 of the case C. That is, the bag W is smaller than the upper surface opening C1 of the case C in plan view (see FIG. 4).

  Next, as shown in FIGS. 9A and 9B, the two article conveying means 2 simultaneously move from the approaching position to the separating position, and the upper surface opening C1 of the case C between the two article conveying means 2 in the open state. A drop opening 6 having substantially the same size as that of the opening is formed. At this time, the bag W that has become smaller after the deformation is maintained in the pressed state by the two side surface pressing bodies 23 and does not fall. That is, the bag W is sandwiched between the two side surface pressing bodies 23.

  Then, as shown in FIGS. 10A and 10B, when the two side surface pressing bodies 23 are separated from the front and rear surface portions in the carrying direction of the bag W, the bag W is dropped in its horizontal posture and dropped. It passes through the opening 6 and is accommodated in the case C on the case transport means 51. During the horizontal fall, the bag W is guided to the vicinity of the bottom surface portion C2 of the case C by the four elastic guide plates 76 of the article guide means 72.

  Next, as shown in FIGS. 11A and 11B, the case transport means 51 descends from the article storage position to the case carry-in / out position with the case C in which the bag W is stored being placed. . In addition, the two article transporting means 2 move to the approach position and close, and the pressing bodies 22 and 23 on one side move upward to the retracted position.

  Subsequently, as shown in FIGS. 12A and 12B, the case C in which the bag is stored is unloaded from the case transporting unit 51 by the stored case unloading unit 53. Simultaneously with the carry-out of the case C stored in the bag, the empty case C is carried onto the case carrying means 51 by the empty case carrying means 52. Further, the next bag W is carried into the closed article conveying means 2 by the article carrying means 3 and conveyed to the article stop position by the article conveying means 2.

  By repeating such an operation, the packaging of the bag W into the case C is sequentially performed. FIG. 13 shows an example of the time schedule of the bag box packing machine 1. When the bag packing machine 1 operates according to this time schedule, 600 bags Wl can be packed in one hour.

  And according to the said bag boxing machine 1, the bag W after a deformation | transformation by which the plane dimension was made smaller than the opening dimension of the upper surface opening C1 of case C by the bag-sizing of the bag-sizing means 21 between the article conveyance means 2 which makes a pair. The bag W is dropped into the case C having a desired size without being collapsed and stored in the case C on the case conveying means 51. Can be boxed properly.

  Further, since the bag adjusting means 21 has a corner pressing body 22 that presses the four corners of the bag W and a side surface pressing body 23 that presses the front and rear surface portions of the bag W, the bag adjusting means 21 includes Thus, the bag W can be pressed and deformed until it becomes smaller than the opening size of the upper surface opening C1 of the case C, and the packaging of the bag W into the case C can be performed more appropriately.

  Further, even if the upper opening-shaped resin bag is covered inside the case C, the elastic guide plate 76 of the article guiding means 72 is inserted into the resin bag prior to the bag W, so that the falling bag W The bag W can be appropriately packed in the case C without causing a problem that the resin bag is caught in the resin bag and enters the case C.

  For example, in order to be able to cope with a bag W that is larger than the opening size of the upper surface opening C1 of the case C in both the front, rear, left, and right dimensions, the bag sizing means 21 has left and right side portions with respect to the conveyance direction of the bag W instead of the side guide plate 41 You may have a 2 side part press body which presses and makes the left-right direction dimension of the bag W smaller than the opening dimension of the upper surface opening C1 of case C.

  Further, the four corner pressing bodies 22 are not limited to the configuration in which the two corner pressing bodies 22 move simultaneously to the pressing position. After the two corner pressing bodies 22 located on the diagonal line move simultaneously to the pressing position, the remaining two corner sections are moved. A configuration in which the pressing body 22 moves simultaneously to the pressing position may be employed.

  Further, the bag size adjusting means 21 is not limited to the one in which the planar dimension of the bag W is made smaller than the opening dimension of the upper surface opening C1 of the case C by pressing deformation, but depending on the type of the bag W, the planar dimension may not necessarily be the opening of the upper surface opening C1. It need not be smaller than the dimensions. For example, in the case of a bag having fluidity (such as a bag containing liquid), an article for horizontally dropping the bag W in the next operation even if the plane dimension is not smaller than the opening dimension of the upper surface opening C1 of the case C. Due to the movement of the conveying means 2 to the separation position, the stress in the bag W escapes to the bottom surface of the bag W, and the bag W has a small size in the front-rear direction and is stored in the case C while being guided by the elastic guide plate 76. .

  Further, the article conveying means 2 and the article carrying means 3 are belt conveyors, and the case conveying means 51, the empty case carrying means 52 and the stored case carrying means 53 are roller conveyors. Any configuration may be used regardless of whether it is a drive type or a non-drive type as long as it can be conveyed.

  Furthermore, the bag (packed article) W packed in the case C may be a substantially rectangular shape (for example, a rectangular shape or a square shape) having four corners, or an elliptical shape. Moreover, it is not limited to what packs the bag thing W one by one with respect to the case C, What packs the bag thing W in the case C several times may be sufficient.

  Further, the number of corner pressing bodies 22 may be two or six in addition to four.

It is a front view of the bag box packing machine concerning one embodiment of the present invention. It is a top view of a bag boxing machine same as the above. It is a side view of a bag boxing machine same as the above. It is a top view of the bag preparation means of a bag boxing machine same as the above. It is operation | movement explanatory drawing of a bag boxing machine same as the above, (a) is a top view, (b) is a side view. FIG. 6 is an operation explanatory diagram following FIG. 5, where (a) is a plan view and (b) is a side view. FIG. 7 is an operation explanatory diagram following FIG. 6, where (a) is a plan view and (b) is a side view. 8A and 8B are operation explanatory diagrams following FIG. 7, in which FIG. 7A is a plan view and FIG. FIG. 9 is an operation explanatory diagram following FIG. 8, where (a) is a plan view and (b) is a side view. FIG. 10 is an operation explanatory diagram following FIG. 9, where (a) is a plan view and (b) is a side view. It is operation | movement explanatory drawing following FIG. 10, (a) is a top view, (b) is a side view. It is operation | movement explanatory drawing following FIG. 11, (a) is a top view, (b) is a side view. It is an example of the time schedule of a bag boxing machine same as the above.

DESCRIPTION OF SYMBOLS 1 Bag boxing machine 2 Article conveyance means 6 Drop opening
21 Bag-making means
22 Corner pressing body
23 Side surface pressing body
51 Case transfer means
52 Empty case carrying means
53 Stored case removal means
71 Case guide
72 Article guide means W Bag C Case

Claims (5)

A bag boxing machine for packing a deformable bag containing articles in a case,
It is movable between an approach position and a separation position, and when it is located at the approach position, it conveys the bag to the article stop position, and when it is located at the separation position, a drop opening for dropping the bag is provided. A pair of article conveying means formed therebetween;
Bag-sizing means for deforming the bag stopped at the article stop position by pressing;
A case conveying means disposed below the article conveying means and conveying the case;
The bag-sizing means is
A corner pressing body for pressing a plurality of corners of the bag,
At least two opposite sides of the bags possess a side surface portion pressing member for pressing a
The bags after deformation by Seibukuro means, the fall from the drop out opening, the bag was cartoner you, characterized in that it is housed in the case on the case conveyor means. Seibukuro means, bags cartoning machine according to claim 1 Symbol mounting, characterized in that less than the opening size of the upper opening of the planar dimensions of the pouches case by deforming by pressing the pouches. The case conveying means can be moved up and down between the article storage position and the case carry-in / out position,
An empty case carrying means for carrying an empty case into the case carrying means when the case carrying means is located at the case carrying in / out position;
3. A packaged case packing means according to claim 1 or 2, further comprising: a stored case unloading means for unloading a case stored in the bag from the case transfer means when the case transfer means is located at the case loading / unloading position. Machine. The bag packaging machine according to claim 3, further comprising case guide means for guiding a case on the case transport means when the case transport means is moved up and down. The increase in the case conveying means is inserted into the case on the case conveyor means, according to claim 3 or 4, characterized in that in the inserted state comprises an article guide means for guiding the bags from the fall opening The bag box packing machine described.

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