JP3513647B2 - Ear shaping device for pillow package - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ear shaping device for bending and shaping an ear portion including an end seal portion extending from an article storage portion of a pillow package.

[0002]

2. Description of the Related Art Ears of a predetermined length including end seals are formed on both sides of a pillow package packaged by a horizontal pillow packaging machine, sandwiching an article container. When the pillow package is packed in a box, it is necessary to fold the both ears along the side portion of the article storage unit. As a device for bending the ears of the pillow package in this manner, for example, an actual flat plate 5-3.
Invention related to Japanese Patent No. 109 "Automatic shaping device for pillow packaged goods"
Exists. With this device, a shaper that moves diagonally downward from above to both ears of the pillow package (pillow package) placed on the pusher plate causes an incomplete downward crease in both ears. Is given. Then, the pusher plate is raised to pass the pillow packaged product between the pair of shaping plates that are separated by a predetermined distance, so that the incompletely preformed ears are folded by the sandwiching action of the shaping plates. As a complete folding habit, both ears can be folded along both sides of the article storage section in the pillow package.

As a device for bending the ears of the pillow package, unlike the above-described device, the ears are not pre-shaped (incomplete folding), but the pillow package is simply passed between a pair of shaping plates. There is also one that folds both ears only.

[0004]

As described above, the pillow package is provided between the pair of shaping plates regardless of whether the ear of the pillow package (package) is preliminarily folded. Since the movement of both ears is not regulated when passing through, the bending position (the inner part where the side of the article storage part and the ears face each other) is not constant and must be bent in a good state. Is difficult. Further, in the shaping device, when the pillow package is lifted, the package is not constrained, and the pillow package is misaligned when the pillow package is lifted, and the ear is not bent well, or the package is It may be damaged. Furthermore, it is pointed out that the two ears of the pillow package are strongly rubbed against the pair of shaping plates, and thus the surface of the ears (packaging material) is damaged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems inherent in the above-mentioned conventional techniques, and has been proposed in order to suitably solve the problems. An object of the present invention is to provide an ear orthopedic device for a pillow package in which a beautiful folded state can be obtained.

[0006]

[Means for Solving the Problems]
In order to preferably achieve the intended purpose, the ear packaging device for a pillow package according to the present invention has two ears formed on both sides of the pillow packaging body that sandwich the article housing portion, and a side portion of the article housing portion. An ear shaping device that bends and shapes along a line, and is arranged so as to be able to approach and separate from each other so as to face each other in the direction of separation of the both ears, and the end sealing part of the ears is located between them. A pair of sandwiching members for sandwiching the article housing portion in a state in which one end portion from the end seal portion to the article housing portion is folded along the side portion of the article housing portion, and a pillow package sandwiched by the both sandwiching members. It is arranged on the opposite side of the sandwiching member with the ear portion of the body sandwiched between them, and they are opposed to each other so as to allow passage of the article accommodating portion in the separating direction of both ear portions of the pillow package, and are sandwiched by both sandwiching members. By inserting the pillow package, A pair of folding members for folding the side that is sandwiched between the clamping member of the article storage portion, a heating means wherein arranged on both folding members, an endless circulated travel
A plurality of cords are provided at equal intervals and clamped by both clamping members
Holding the pillow package that has been fixed, in the same direction as the sandwiching member
A holding member that moves at substantially the same speed, and both of the sandwiching members are configured to sandwich the article container until the folded ears of the pillow package enter between the folding members. Is characterized by.

[0007]

The article storage portion of the pillow package having the ear portions formed on both sides of the article storage portion sandwiches the end seal portion of the ear portion from the end seal portion to the article storage portion. Is sandwiched by the pair of sandwiching members in a state of being folded along the side portion of the article container. By inserting the pillow package sandwiched by both the sandwiching members between a pair of folding members arranged on the opposite side of the sandwiching member with the ears sandwiched, the both ears are guided by the folding members. And is bent to the side sandwiched by the sandwiching member. The ears that have entered between the bending members are softened by being heated by the heating means, and the bending is easily achieved. Further, since the article container is held by both holding members until both ears of the pillow package enter between the both bending members, the bending position of the ears becomes constant, and both ears are sure and beautiful. Can be folded into

By transferring the pillow package while it is held by the holding member, the package will not be displaced,
The package will not be damaged or the ear bending position will not shift. Both ears bent by the bending member pair on the upstream side in the transfer direction are repeatedly pressed by a plurality of bending member pairs provided on the downstream side, so that the creases of the bent ears are reliably retained. .

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an ear shaping device for a pillow package according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments. In the embodiments, for convenience of description, the “left-right direction” is referred to in the relationship with the side where both ears of the pillow package extend with respect to the article storage unit, and the direction orthogonal to the “left-right direction” is referred to. It is referred to as "front-back direction". The "length dimension" refers to the dimension along the "left-right direction", and the "width dimension" refers to the dimension along the "front-back direction".

FIG. 1 is a schematic front view showing the entire structure of an ear shaping device according to an embodiment. The device A is a transfer device B for lowering a pillow package 11 transferred from a supply conveyor 10. Pillow package 1 transferred to the transfer device B
Both ears 17, 17 of the pillow package 11 lowered by the holding device C and the transfer device B for holding the article storage unit 15
And a bending device D for bending the
The pillow package 11 in the folded state of the ears discharged from the transfer device B is configured to be conveyed to the next step by the discharge conveyor 75.

(Regarding Supply Conveyor) For example, the supply conveyor 10 is disposed downstream of a delivery conveyor (none of which is shown) in a horizontal pillow packaging machine, and the pillow package 11 manufactured by the packaging machine is delivered. It is transferred from the conveyor onto the supply conveyor 10. The pillow package 11 conveyed by the supply conveyor 10 has a stopper 12 facing a predetermined position on the downstream side of the supply conveyor 10, as shown in FIG.
It is positioned so as to come into contact with (described later). Further, a detection sensor 13 is arranged corresponding to the stop position of the pillow package 11 by the stopper 12, and based on the detection of the package by the sensor 13, a supply pusher 14 to be described later operates to transfer the pillow package 11 to the transfer device. Configured to transfer to B.

As shown in FIG. 6, the pillow package 11 has an ear portion 1 in which a packaging material extending laterally from each of the upper and lower surfaces of the article accommodating portion 15 facing each other is superposed at the end seal portion 16.
7 are formed on both the left and right sides of the article accommodating portion 15. The pillow package 11 is the supply conveyor 1
Both ears 17, 17 are exposed to the upstream and downstream sides in the transport direction of 0, and the center seal portion 18 is transported by the conveyor 10 in a posture facing the upper surface side.
By the way, the pillow package 11 of the embodiment is a package of rectangular parallelepiped articles in which PTP sheets containing tablets are accumulated, and the left and right sides from which the ears 17, 17 of the article container 15 extend. The portion is substantially flat, and the ears 17 are gusseted.

Above the supply conveyor 10 and the transfer device B, as shown in FIG. 5, a supply pusher 1 which reciprocates between the upper part of the conveyor 10 and the upper part of the transfer device B.
4 is arranged, and when the detection sensor 13 detects the pillow package 11 conveyed on the supply conveyor 10, the supply pusher 14 operates and the pillow package 11 stopped at the stop position is transferred to the transfer device B. Configured to be transported to. The supply pusher 14 is connected to the drive motor 51 via a connecting means 77 (partially shown in FIG. 5), and is reciprocated by the drive motor 51.

(Regarding Transfer Device) As shown in FIG. 2, the pillow package 11 transferred from the conveyor 10 by the supply pusher 14 is located behind the supply conveyor 10 (above the supply conveyor 10 in FIG. 2). A transfer device B that intermittently transfers downward is provided. That is, in the machine frame 19 of the ear shaping device A, a pair of fixed frames 20 and 20 are disposed facing each other with a predetermined gap in the left-right direction, and are vertically separated from each other between the fixed frames 20 and 20. A pair of fixed shafts 21 and 21 are installed. As shown in FIG. 3, a pair of movable cylinders 22, 22 are slidably fitted onto each fixed shaft 21, and a first movable frame 23 is arranged on the movable cylinders 22, 22 on the left side in FIG. At the same time, the second moving frame 24 is disposed on the moving cylinders 22, 22 on the right side in FIG.
3, 24 are configured so as to be able to move toward and away from each other.

An adjusting screw shaft 25 having a left screw 25a and a right screw 25b screwed on both left and right sides sandwiching the descending center line CL of the pillow package 11 by the transfer device B is rotated between the two fixed frames 20, 20. It is pivotally supported. Further, female screw members 26a, 26b that are screwed into the corresponding left screw 25a or right screw 25b are arranged on the respective moving frames 23, 24, and by rotating the adjusting screw shaft 25 in the forward and reverse directions, The moving frames 23 and 24 are descending center line C
The distance between the mounting members 31, 31 and the upper, middle, lower bending members 65, 65, 66, 66, 67, 67, which will be described later and which are moved toward and away from each other and are paired with each other, are described later. The distance between the two ears 17, 17 in the separating direction 11) can be adjusted in accordance with the change in the length dimension of the article storage unit 15 in the pillow package 11. The adjusting screw shaft 25 is connected to a handle 27 rotatably arranged on the machine frame 19 via a connecting means 27a composed of a chain-sprocket (see FIG. 5).
The interval is adjusted by rotating the normal and reverse directions.

Inside the two moving frames 23, 24 (on the side facing the descending center line CL), three driven sprockets 28 and one driving sprocket 29 are arranged in the same corner position of the virtual rectangle. Each of them is rotatably supported by an axis of orientation. The four sprockets 28, 28, 28, 29 arranged on the first moving frame 23 and the four sprockets 28, 28, 28, 29 arranged on the second moving frame 24 have endless chains (endless ropes). Each body 30 is wound around and configured to run freely. In each of the endless chains 30, a plurality of mounting members 31 serving as holding members for supporting the article housing portion 15 of the pillow package 11 from below are arranged at equal intervals, and a pair of left and right mounting members 3 are provided.
The article storage unit 15 is placed between 1 and 31. Note that the space between the pair of left and right mounting members 31, 31 is configured to support the lower side in the vicinity of both the left and right ends of the article storage unit 15 as shown in FIG. Bending members 65, 65, 66, 66, 6 at the top, middle and bottom
It is set by adjusting the left and right moving frames 23, 24 to move toward and away from each other when setting the facing intervals of 7, 67. Further, each endless chain 30 runs vertically downward between the upper and lower driven sprockets 28, 28 located on the front side facing the supply conveyor 10, and in this vertical descending path (a linear descending area), a transfer device is provided. The pillow package 11 is transferred from the supply conveyor 10 to B and discharged from the pillow package 11 to the discharge conveyor 75 (see FIG. 4).

The pair of fixed shafts 21 and 21 include:
Central frame 3 facing the middle of both moving frames 23, 24
2 are disposed and fixed, and the central frame 32 has four sprockets 28, 2 disposed on the respective moving frames 23, 24.
Coaxial with 8, 28 and 29, three driven sprockets 33 and one drive sprocket 34 are rotatably supported. And these four sprockets 33,33,3
An endless chain (endless cord body) 35 is wound around 3, 34, and the article storage portion 15 mounted on the mounting members 31, 31 of the pillow package 11 is attached to the upper side of the chain 35. Supporting members 36 as a plurality of holding members that are supported from are arranged at equal intervals. Endless chain 35 of this support member 36
The arrangement interval with respect to the endless chain 3 of the mounting member 31 is the same.
The arrangement interval is set to 0, and the pillow package 11 includes two placing members 31, 31 and one holding member 36.
The article storage unit 15 is sandwiched from above and below to hold the package 11 so as not to be displaced (see FIG. 7). In the embodiment, the endless chain 3 is used as an endless cord.
Although 0 and 35 are used, the mounting member 31 and the supporting member 36
May be disposed on a belt or wire as an endless cord and moved.

The sprocket arranged on the lower rear side of both the moving frames 23, 24 is the drive sprocket 2.
9, 29, and both drive sprockets 29, 29 are shown in FIG.
As shown in FIG. 6, the first drive shaft 37 pivotally supported between the fixed frames 20 and 20 is pivotally supported so as to rotate integrally with the first drive shaft 37 while being allowed to move in the axial direction. Has been done. Further, the sprocket arranged on the upper rear side of the central frame 32 is a drive sprocket 34, and the drive sprocket 34 is provided on both fixed frames 20,
It is pivotally supported so as to rotate integrally with a second drive shaft 38 which is pivotally supported between 20. The central frame 3
The driven sprocket 33 arranged corresponding to the first drive shaft 37 in FIG. 2 and the driven sprockets 28, 28 arranged corresponding to the second drive shaft 38 in both moving frames 23, 24 are the corresponding drive shafts. 37 and 38 are configured to be freely rotatable.

The two drive shafts 37, 38 are index mechanisms 39 arranged on one fixed frame 20 shown in FIG.
Is connected to the drive motor 51 via an index mechanism 39, both drive shafts 37, 38 are intermittently rotated, and at that time, three sets of endless chains 30, 30, 35 are simultaneously circulated and run, The pillow package 11 held from above and below by the placing members 31, 31 and the supporting member 36 is intermittently lowered. Also, the support member 3
A differential gear mechanism 40 is provided in the drive transmission path to the endless chain 35 in which 6 is arranged, and the position of the support member 36 with respect to the placing members 31 and 31 is set according to the height dimension of the pillow package 11. It is configured so that (the distance between the members 31 and 36) can be changed. The distance between the members 31 and 36 is set to be substantially the same as the height dimension of the pillow package 11.

When the transfer device B is intermittently stopped (when traveling of the endless chains 30 and 35 is stopped), the vertical descending paths of the left and right endless chains 30 and 30 facing the supply conveyor 10 are as shown in FIG. There are five mounting members 31 each, and the uppermost (first position) mounting member 31 is near the uppermost part of the vertical descending path that allows the pillow package 11 to be transferred from the supply conveyor 10. It is set to face. The mounting surface (upper surface) of the mounting member 31 facing the uppermost stop position is set to be the same as or lower than the transport surface (upper surface) of the supply conveyor 10, and The pillow package 11 is smoothly transferred from the tip side. In addition, the mounting member 31 facing the highest stop position
The top (1st) that holds the pillow package 11 in cooperation with
When the transfer device B is intermittently stopped, the supporting member 36 is located at the turning portion of the endless chain 35 by the upper front driven sprocket 33, and the tip end space between the supporting member 36 and the mounting member 31 is widened. Is set so that both members 3
The pillow package 11 is configured to be reliably received between the first and the third parts (see FIG. 4). Then, the transfer device B is intermittently driven to move the uppermost support member 36 to the vertical descending path of the endless chain 35, thereby forming a pair of mounting members 31, 31.
The pillow wrapping body 11 placed on the above is supported from above.

The lowest (fifth) mounting member 31 is set to face the vicinity of the lowermost part of the vertical descending path which allows the pillow package 11 to be discharged to the discharge conveyor 75. In addition, the placement surface (upper surface) of the placement member 31 facing the lowest stop position is set to be the same as or higher than the transport surface (upper surface) of the discharge conveyor 75, and is discharged from the placement member 31. The pillow package 11 is smoothly discharged to the conveyor 75. In addition, the pillow package 11 placed on the placing members 31, 31 facing the lowest stop position.
Is supported from the upper side by the lowermost (fifth) support member 36, but the holding state of the pillow package 11 by the mounting members 31 and 31 and the support member 36 depends on the distance between the members 31 and 36. Is set to be substantially the same as the height dimension of the pillow package 11 as described above, and therefore the extrusion (discharging) by the discharge pusher 76, which will be described later, is permitted, and the pillow package 11 is not discharged to the discharge conveyor 75. You can do it without any problems.

(Clamping Device) A clamping device C for the article accommodating portion 15 of the pillow package 11 is arranged immediately above the vertical descending path of the placing members 31, 31 in the transfer device B. As shown in FIG. 1, the holding device C is
Mounting members 41, 41 formed in L-shapes on both left and right sides sandwiching the descending center line CL have vertical portions 41a, 41.
The holding members 43 are vertically disposed on the horizontal portions 41b of the respective mounting members 41 with the holders 42 interposed therebetween. That is, both left and right sides sandwiching the descending center line CL
A pair of sandwiching members 43, 43 are arranged facing each other at a predetermined interval in the (separating direction of the both ears 17, 17 in the pillow package 11), and the article is provided at the lower ends of the sandwiching members 43, 43. It is configured to sandwich the storage portion 15 (see FIG. 7).
The sandwiching member 43 is a thin plate-like member having a width dimension that is preferably equal to or larger than the width dimension of the pillow package 11, and the pair of sandwiching members 43, 43 is moved up and down by an elevating mechanism 44 and an opening / closing mechanism 45 described later. It is configured to move close to and away from each other. Note that the width dimension of the sandwiching member 43 can be made smaller than the width dimension of the pillow package 11 if there is no hindrance when the ear portion 17 is bent, which will be described later, depending on conditions such as the size of the pillow package 11. .

(Elevating mechanism) As shown in FIG. 3, the elevating mechanism 44 of the sandwiching members 43, 43 is a slider arranged vertically slidably with respect to a guide rail 46 arranged on the machine frame 19. 47, and a vertical holder 41 of the mounting members 41, 41 is attached to a lifting holder 48 disposed on the slider 47.
Opening / closing shafts 49, 49 fixed to a and 41a are rotatably supported. Further, the arm 5 pivotally supported by the machine frame 19 is swingably supported by the groove portion 48a formed in the lift holder 48.
A follower 50a pivotally supported at one end of 0 is slidably engaged, and as the arm 50 swings, the lifting holder 48 moves up and down along a guide rail 46 within a required range. The arm 50 is connected to the drive motor 51 via a connecting means (not shown),
1, the arm 50 is swung. That is, by swinging the arm 50 by the drive motor 51, the pair of sandwiching members 43, 43 moves up and down within a required range.

Clamping members 43, 4 by the lifting mechanism 44
In the highest position of 3, the lower end faces above about 1/2 of the height of the article storage unit 15 in the pillow package 11 placed on the placing members 31, 31 facing the highest stop position. And the lowermost position is set to
Ears 17,17 of the pillow package 11 sandwiched by 3,43
Is set to a position where it completely enters between the upper folding members 65, 65 described later (see FIG. 7C). The elevating mechanism 44 lowers the holding members 43, 43 in accordance with the intermittent drive of the transfer device B, and the lowering speed is
The lowering speed of the placing member 31 and the supporting member 36 is set to substantially match. That is, the pair of holding members 4
3 and 43 are configured to move in the same direction and at substantially the same speed as the mounting member 31 and the support member 36 that descend in the vertical descending path of the endless chains 30 and 35. The pillow package 11 can be lowered while holding the article storage portion 15 of the pillow package 11.

(Opening / Closing Mechanism) As shown in FIG. 3, the opening / closing mechanism 45 of the sandwiching members 43, 43 is connected to a parallel link mechanism 52 provided in the machine frame 19 and extends vertically to guide rails 53. Equipped with. The parallel link mechanism 52 is provided with an arm 54 that is connected to the drive motor 51 via a connecting means (not shown). By swinging the arm 54 by the drive motor 51, a guide rail is provided via the parallel link mechanism 52. 53 is configured to translate. The pair of open / close shafts 49, 49 are configured to mesh with each other via gears (not shown) and rotate in mutually opposite directions,
One end of a connecting bar 55 is connected to one opening / closing shaft 49 so as to rotate integrally. A roller 55a pivotally supported on the other end of the connecting bar 55 is slidably engaged with the guide groove 53a of the guide rail 53. That is, since the guide rail 53 moves in parallel and the distance between the guide bar 53 and the opening / closing shaft 49 to which one end of the connecting bar 55 is connected changes, the connecting bar 55 rotates via the roller 55a that engages with the guide groove 53a. As a result, the pair of opening / closing shafts 49, 49 rotate in opposite directions to open / close the holding members 43, 43. Further, when the distance between the guide rail 53 and the opening / closing shaft 49 is kept constant, the guide groove 53 of the guide rail 53 is
Since the connecting bar 55, along which the roller 55a moves along a, does not rotate, the pair of sandwiching members 43, 43 moved up and down by the elevating mechanism 44 move up and down while maintaining a constant spacing.

The pair of gripping members 43, 43 are substantially closed by the opening / closing mechanism 45 from an open position in which the pillow package 11 is separated by a distance larger than the length of the article storage unit 15. It is set to move closer to the pinching position which is parallel. In addition, the interval between the two clamping members 43, 43 at the clamping position is set to be substantially the same as the length dimension of the article storage section 15 so that the article storage section 15 can be clamped. Further, the opening / closing mechanism 45 is operated by the elevating mechanism 44 so as to move from the open position to the sandwiching position when the pair of sandwiching members 43, 43 is slightly lowered from the maximum raised position, and is placed on the uppermost stop position. Member 3
It is configured to sandwich the article storage portion 15 of the pillow package 11 placed on Nos. 1 and 31. In addition, the lower end edges of both holding members 43, 43 that move from the open position to the holding position are
About 1/2 the height of the pillow package 11 (ear 17
(Above the end seal portion 16) of both of the holding members 43, 43 reach the holding position, so that the ear portions 17, 17
Upper surface side of the article storage portion 15 (center seal portion 1
8 surface) to the end seals 16, 16
(One portion from the end seal portions 16 and 16 located in the ears 17 and 17 sandwiching the end seal portions 16 and 16 to the article storage portion 15) is arranged along the left and right side portions of the article storage portion 15. The article accommodating portion 15 is sandwiched in a folded state (see FIGS. 7A and 7B).

The pair of holding members 43, 43 move and adjust the holder 42 in the left-right direction with respect to the horizontal portion 41b of each mounting member 41, whereby the pillow package 11 is formed.
According to the length dimension of the article storage portion 15 in, the space dimension can be adjusted. Pillow package 1
The change in the height dimension of 1 can be dealt with by exchanging the sandwiching members 43, 43 with another one having a different length. It is possible to cope with the change in the height dimension of the pillow package 11 without exchanging the sandwiching members 43, 43 by making the configuration in which the raising and lowering amount of the sandwiching member 43 by the elevating mechanism 44 can be adjusted. .

(Regarding the folding device) The mounting members 31, 31 of the transfer device B are attached to both the moving frames 23, 24.
Further, a folding device D for folding both ears 17, 17 of the pillow package 11 held by the support member 36 along the left and right side portions of the article storage unit 15 is provided. The folding device D is composed of a pair of folding mechanisms 56 and 57 arranged on both the left and right sides of the mounting member 31 and the supporting member 36 so as to sandwich the vertical descending path therebetween. Since the left and right folding mechanisms 56 and 57 have the same configuration, only the configuration of the second folding mechanism 57 located on the right side in FIG. 1 will be described, and the same members of the first folding mechanism 56 located on the left side will be described. The same reference numerals are given.

As shown in FIG. 2, the second moving frame 2
4 (for the first bending mechanism 56, the first moving frame 23) is provided with a support plate 58 provided on the outside (a side away from the descending center line CL), and a tubular body 59 extending in the front-rear direction is provided. A plate 60 is disposed and fixed to the front end of the cylindrical body 59. On this plate 60, as shown in FIG.
A pair of upper and lower guide bodies 61, 61 are arranged, and a horizontal guide rod 62 is slidably inserted into each guide body 61. Center line C for descending both guide rods 62, 62
An inner connector 63 is disposed between the inner ends of the inner connector 63 and the holder 64 is formed in the inner connector 63 in an L shape.
Is provided. In this holder 64, as shown in FIG.
Three bending members 65, 66, 67 spaced apart in the vertical direction
Are respectively movably arranged in the left-right direction, and the bending members 65, 66, 67 are always provided with a plurality of compression springs (elastic means) 6.
It is biased by 8 in the direction close to the descending center line CL. The upper, middle and lower three bending members 65,
66 and 67 are arranged in a relationship corresponding to the second, third, and fourth stop positions of the mounting member 31 by the transfer device B. That is, in the embodiment, the pair of left and right bending members 6
A pair of bending members composed of 5,65,66,66,67,67 are arranged in three pairs along the moving direction of the mounting member 31 (moving direction of the pillow package 11 sandwiched by both sandwiching members 43,43). Set up.

An operating shaft 69 is rotatably supported by the cylindrical body 59, and one end of a front connecting bar 70 is connected to the front end of the operating shaft 69 so as to be integrally swingable. Also,
The other end of a rod 71, one end of which is pivotally supported at the other end of the front connecting bar 70, is pivotally supported at an outer connecting member 72 disposed between the outer end portions of the guide rods 62, 62. Bar 70
Along with the swinging of the three bending members 65, 66, 6
7 is configured to move toward and away from the descending center line CL. The rear connecting bar 7 is provided at the rear end of the operating shaft 69.
One end of 3 is connected to be integrally swingable, and the rear connecting bar 73 is swingably biased by a pneumatic cylinder (not shown). That is, by swinging the pair of rear connecting bars 73, 73 in the left and right folding mechanisms 56, 57 by the pneumatic cylinder,
The folding members 65, 65, 66, 66, 67, 67 of the set move toward and away from each other, and when they approach each other, the pillow package 11
The ears 17, 17 are pressed against the left and right side portions of the article storage unit 15 to be bent (give a crease). In addition, three sets of bending members 65, 65, 66, 66, 67, 6
7 is set so as to be separated when the transfer device B is intermittently driven (when the mounting member 31 is moved), and to be close when intermittently stopped.

As shown in FIG. 1, the upper surfaces of the upper and lower bending members 65, 65 facing each other across the descending center line CL are mounted on the pillows placed on the mounting members 31, 31 facing the uppermost stop position. Below the ears 17, 17 of the package 11
It is positioned so as to face (on the side opposite to both clamping members 43, 43). In addition, the facing interval when the upper folding members 65, 65 are separated (both ears 17, 17 in the pillow package 11).
(Space in the separating direction) allows passage of the article container 15 in the pillow package 11 and
When the sheet is sandwiched by the pair of sandwiching members 43, 43 and is entered (transferred) between the sandwiching members 43, 43, the ears 17, 17 extending laterally from the article storage unit 15 to the left and right sides have the upper folding members 65, 6
It is set to a value such that it can be contacted and guided upward by 5 (Fig. 7 (c))
reference). In addition, the middle and lower folding members 66, 66, 67,
When the 67 is separated from each other, the facing interval is also the upper bending members 65, 65.
The distance is set to be the same as the facing distance at the time of separation. Further, by adjusting both the moving frames 23, 24 to move toward and away from each other, the three sets of bending members 65, 65, 66, 66, 6 can be adjusted.
The facing interval of 7, 67 is set as described above according to the length dimension of the article storage unit 15 in the pillow package 11. When the space between the bending members is adjusted, the space between the mounting members 31, 31 paired on the left and right sides is also adjusted at the same time. Further, the width dimension of each of the folding members 65, 66, 67 is preferably set to be equal to or greater than the width dimension of the pillow package 11. In addition, depending on conditions such as the size of the pillow package 11 and the like, if there is no hindrance when the ear portion 17 is bent, the width dimensions of the bending members 65, 66, 67 are:
It is possible to make it smaller than the width dimension of the pillow package 11.

A heater 74 as a heating means is embedded in each of the upper bending member 65 and the middle bending member 66, and the bent ear portion 17 is heated to soften the packaging material, so that the ear portion 17 is heated. It is constructed so that it can be securely bent. No heater is embedded in the lower bending member 67, and the upper and lower bending members 65, 6 are
It functions to cool the ears 17 heated in 6 and prevent the bent ears 17 from returning to their original state.

The plate 60 of the second folding mechanism 57
As shown in FIG. 1 and FIG.
A stopper 12 is provided facing the upper side of the transport surface of 0, and the stopper 12 comes into contact with the right end (the front end in the transport direction) of the article storage unit 15 in the pillow package 11 transported by the supply conveyor 10 to cause the pillow package. It functions to perform stop positioning of the body 11. The stopper 12 is moved and adjusted integrally with the second moving frame 24, and stops the pillow package 11 at a position where the center of the pillow package 11 in the longitudinal direction is aligned with the descending center line CL in the front-rear direction. Configured to let. The stopper 12 is configured so that its position can be adjusted according to the change in the height dimension of the pillow package 11.

(Discharge Conveyor) Below the supply conveyor 10, there is a discharge conveyor 75 for conveying the pillow package 11 in the folded state of the ears discharged from the transfer device B to the subsequent process. They are arranged in parallel. As described above, the discharge conveyor 75 is mounted on the mounting member 3 facing the lowest stop position in the transfer device B.
It is arranged at a position where the pillow package 11 can be transferred from 1, 31. Below the transfer device B, there are two endless chains 30, 30 and 35 which can be swung back and forth.
A fork-shaped discharge pusher 76 of a book is provided (see FIG. 1), and when the pusher 76 swings between the left and right mounting members 31, 31 facing the lowest stop position from the rear to the front, The pillow package 11 placed on the placing members 31, 31 is configured to be pushed toward the discharge conveyor 75 and discharged. The discharge pusher 76 is connected to the drive motor 51 via a connecting means (not shown),
It is reciprocated by the drive motor 51.

[0035]

Next, the operation of the pillow package ear shaping device according to the above-described embodiment will be described. The pillow wrapping body 11 sent out from the horizontal pillow wrapping machine has both ears 17, 17 on the upstream and downstream sides in the conveying direction of the supply conveyor 10.
And the center seal portion 18 is transferred and conveyed on the conveyor 10 in a posture of facing the upper surface side. The pillow package 11 conveyed by the supply conveyor 10 is
As shown in FIG. 2, the stopper 12 is stopped by the front end of the article storage unit 15 in the transport direction coming into contact with the stopper 12, and
It is detected by the detection sensor 13.

When the pillow package 11 is detected by the detection sensor 13, the drive pusher 14 is operated by the drive motor 51, and the pillow package 11 stopped on the supply conveyor 10 is in the stopped state. The mounting member 3 facing the highest stop position in the vertical descending path of the device B
Transferred onto 1,31. At this time, the endless chain 3
5, the uppermost support member 36 is located at the turning portion of the endless chain 35 by the upper front driven sprocket 33, so that the mounting members 31, 31 and the support member 3 are disposed.
The distance between the front end of the pillow package 11 and 6 is widened, and the pillow package 11 is easily transferred between the two 31 and 36 (see FIG. 4).

The supply pusher 14 is a pillow package 11.
After the start of the transfer of the pillow packaging body 11 transferred to the placing members 31 and 31, the holding members 4 in the open position.
The descent of 3, 43 by the elevating mechanism 44 is started, and the holding members 43, 43 are temporarily stopped at a slightly lowered position. Shortly before this stop, the opening / closing mechanism 45 operates and the guide rail 53 moves in parallel, so that the sandwiching members 43, 43 start approaching each other (FIG. 7 (a)), and then approach to the sandwiching position. And stop. At this time, as shown in FIG. 7 (b), the sandwiching members 43, 43 are substantially parallel to each other, and the lower end edges of the sandwiching members 43, 43 at the left and right side portions of the article container 15 in the pillow package 11 are the article container heights. About 1/2
The article storage portion 15 is clamped in the state of being located at the position.
That is, the lower end edges of the sandwiching members 43, 43 in the sandwiched state support the portions at the bending positions when the ears 17, 17 are folded. Both clamping members 43,
Before 43 is in a state of being completely sandwiched with respect to the article storage unit 15.
Before the completion of the pinching operation, the transfer of the pillow package 11 onto the placing members 31, 31 by the supply pusher 14 has been completed.

That is, after the two holding members 43, 43 are slightly lowered, the holding members 3 are held in close proximity to each other in the direction in which the ears 17, 17 are separated from each other.
In the pillow wrapping body 11 transferred onto the first and the first parts 31 and 31, approximately the upper half from the upper surface side of the article storage part 15 in the ears 17 and 17 to the end seal parts 16 and 16 (the ears 17 in FIG. 7A). (Above the end seal portion 16) is folded toward the left and right side portions of the article storage portion 15. Therefore, as will be described later, when the remaining parts of the ears 17, 17 are bent upward, the folded part and the end seal part 16 of the ears 17 are located on the left and right sides of the article storage part 15. It is beautifully folded along the part to give a good finish.

When the sandwiching operation of the sandwiching members 43, 43 is completed, the elevating mechanism 44 is activated again, and the sandwiching members 4 of the pillow package 11 are sandwiched and held.
3,43 resumes the descent. In synchronism with the resumption of the lowering of both holding members 43, 43, three sets of endless chains 30, 30, 35
Is moved by the index mechanism 39, and the placing members 31, 31 and the supporting member 36 also start descending. The pillow wrapping body 11 held from above and below by the mounting members 31, 31 and the support member 36 has a structure in which the pair of upper folding members are in the process of lowering the members 31, 36 from the uppermost to the second stop position. It is approached (transferred) between 65 and 65. At this time, the upper folding members 65, 65 are separated from each other, and the distance between them is slightly wider than the length dimension of the article storage unit 15 of the pillow package 11, and the left and right sides from the article storage unit 15 are separated. It is set to a value that makes contact with the extending ears 17, 17. Therefore, the pillow package 11 in which the article storage unit 15 is sandwiched by the pair of sandwiching members 43, 43 has the lower surface side of the article storage unit 15 (the sandwiching members 43, 4 sandwiching the ears 17, 17).
From the side opposite to 3 and the surface facing the surface facing the center seal portion 18) between the upper bending members 65, 65,
As shown in FIG. 7C, the lower surfaces of the both ears 17, 17 are in contact with the upper surfaces of the corresponding upper bending members 65, 65, and are bent upward.

The holding members 43, 43, the placing members 31, 31 and the supporting member 36 are lowered at substantially the same speed,
At the timing before and after the pillow wrapping body 11 is inserted between both upper folding members 65, 65 and both ears 17, 17 are folded upward, both holding members 43, 43
The position of the lower end edge of the with respect to the article storage unit 15 is held substantially constant. Therefore, the ears 17, 17 extending from the article storage portion 15 are bent upward with the bending position (position of about 1/2 of the height of the article storage portion) being constant,
A beautiful fold is achieved.

After that, when the sandwiching members 43, 43 reach the lowest position, the holding members 43, 43 are held in the closed position and then rise, but the placing members 31, 31 and the support member 36 continue to descend and reach the highest position. It descends from the upper stop position by the member disposition interval and stops. At this time, the upper surface of the pillow package 11 is regulated by the support member 36, and the interval between the sandwiching positions of the sandwiching members 43, 43 is substantially the same as the length dimension of the article container 15 in the pillow package 11. Since they are set to the same, the pillow package 11 escapes upward.
There is no (positional deviation).

The above-mentioned mounting members 31, 31 and the supporting member 3
After the intermittent stop of 6, the left and right folding mechanisms 56, 5
7, the upper folding members 65, 65 come close to each other, and the folded ears 1 of the pillow package 11 are folded.
7, 17 are pressed against the left and right side portions of the article storage portion 15 to be in close contact with each other. At this time, the sandwiching members 43, 43 are retracted above the upper folding members 65, 65. Both upper bending members 65, 65 are slidably supported with respect to the holders 64, 64, and a plurality of compression springs 6 are provided.
Since they are urged toward each other at 8, when both upper folding members 65, 65 are closest to each other, both upper folding members 65, 65 can escape against the elastic force of the compression springs 68, 68. The contents of the pillow package 11 are not crushed. Further, the ears 17, 17 bent upward by the compression reaction force of the compression spring 68 are sufficiently brought into close contact with the left and right side portions of the article storage section 15. Further, both upper folding members 65,
Since the heaters 74 are embedded in the respective members 65, the ears 17, 17 contacting the members 65, 65 are heated, and the ears 1
When the sheets 7 and 17 are folded, the packaging material is softened so that a crease is easily given, and good folding is performed.

At this point, when the next pillow package 11 is detected by the detection sensor 13 on the supply conveyor 10,
The above operation is repeated. Therefore, the above-mentioned mounting members 31, 3
1 and the supporting member 36 are stopped after being lowered by a member disposition interval with respect to the endless chains 30, 30, 35, and the pillow package 11 facing the second stop position is the placing member 3 described above.
While being held from above and below by 1, 31 and the support member 36, they are transferred to the third stop position in the vertical descending path. The middle bending members 66, 66 having the same structure as the above-described upper bending members 65, 65 arranged corresponding to the third stop position are the mounting members 31, 31 and the supporting member 36.
Are separated before moving, and both members 31 and 36 come close after stopping. Then, by the middle folding members 66, 66,
The two ears 17, 17 of the pillow package 11 stopped at the third stop position are brought into close contact with the left and right sides of the article container 15 again and are heated.

Further, when the next pillow package 11 on the supply conveyor 10 is detected by the detection sensor 13, the above-described operation is repeated, and the pillow package 11 facing the stop position of the third position is the same as described above. Mounting members 31, 31 and support member 36
Along with the intermittent movement, it is transferred to the fourth stop position while being held by the members 31 and 36. The above-described upper bending member 6 arranged corresponding to the fourth stop position.
The lower bending members 67, 67 having the same structure as 5, 65 are separated before the placing members 31, 31 and the support member 36 are moved, and are brought closer after the both members 31, 36 are stopped. And
Both ears 17, 17 of the pillow package 11 stopped at the fourth stop position by the lower folding members 67, 67,
The left and right side portions of the article storage portion 15 are again closely attached. That is, by pressing the ears 17 and 17 against the article storage portion 15 multiple times, the ears 17 and 17 are surely given a crease. Also, the lower bending members 67, 67
Since no heater is provided in the ear, the ears 17, 17 heated in the previous step are cooled, and the creases imparted to the ears 17, 17 are retained.

Furthermore, when the next pillow package 11 on the supply conveyor 10 is detected by the detection sensor 13, the above-described operation is repeated, and the pillow package 11 facing the fourth stop position is moved forward. With the intermittent movement of the placing members 31, 31 and the supporting member 36, the writing members are transferred to the lowest stop position while being held by the both members 31, 36. Both members 3
After 1, 36 stop, the discharge pusher 76 is actuated to start swinging from the rear to the front,
The pillow package 11 in a state in which is folded along the left and right side portions of the article storage unit 15 is discharged onto the discharge conveyor 75.

(Regarding Modifications) The invention of the present application is not limited to the configuration of the above-described embodiment, but various modifications described below are possible. 1. Contrary to the embodiment, the placing member and the sandwiching member may be raised to bend the ears. in this case,
The pillow wrapping body is lifted while the lower half of the article storage unit is held by the holding member and is transferred between the folding members. In addition, in this configuration, since the pillow package is lifted from below by the mounting member, the support member for supporting the upper side of the package can be omitted. 2. In the embodiment, the placing member and the supporting member are arranged in the endless chain, and the vertical descending path is provided with a plurality of stop positions, but both members are arranged in the pneumatic cylinder or other linear actuator. Alternatively, it may reciprocate between two stop positions. Further, if the holding member is also moved up and down by the linear actuator, it is easy to move the placing member (holding member) and the holding member at substantially the same speed. Even when the linear actuator is used as the drive source, the direction of movement of the pillow package is not limited to descending and may be upward. 3. The number of bending member pairs is not limited to three, and various conditions
The number may be determined to be an appropriate number of 2 pairs or less or 4 pairs or more depending on (for example, device capability, packaging material characteristics, etc.) 4. In the embodiment, the pair of bending members are configured to move toward and away from each other, but such a mechanism can be omitted depending on, for example, the sliding characteristics of the packaging material. As an example, similarly to the structure of the embodiment, with respect to an appropriate fixing member, the bending member is slidably supported, and is biased by a spring in a direction in which the bending member is close to each other, and the pillow package and the sandwiching member are provided between the bending members. A structure is adopted in which the bending member retracts against the elastic force of the spring when it is transferred to. 5. In the embodiment, both sandwiching members are raised in the state of being close (sandwiched) and separated from the pillow package, but when the sandwiching member is raised, both sandwiching members are separated and separated from the pillow package. Good. 6. The folding member may be moved in a box motion. In this case, the folding member is lowered or raised in the proximity state and returned in the spaced state in synchronization with the lowering or raising of the pillow package. Further, the folding member may be constituted by a rotary belt, and in this case, in the vertical movement path facing the pillow package, the belt is lowered or raised in synchronization with the lowering or raising of the pillow. .

[0047]

As described above, according to the ear part shaping device for a pillow package according to the first aspect of the present invention, the pair of sandwiching members form the article accommodating part in the direction in which the ear parts of the pillow package are separated from each other. Hold it. Therefore, the position of the pillow package with respect to the folding member is accurately determined, and when the pillow package is inserted between the folding members, the article storage portion does not hit the folding member and is not displaced, and the good folding for the ears is performed. Is possible. Further, since one portion from the end seal portion located between the end seal portions of the ear portion by the holding member to the article storage portion is folded to the side portion of the article storage portion, the ear portion should follow the folded portion. It will be beautifully folded and the finish will be good. Furthermore, since the ears are bent while the article storage unit is held by the holding members, the bending position of the ears is constant and good bending is performed. Moreover, it is possible to soften the packaging material of the pillow package by the heating means embedded in the folding member to easily give a crease, and good folding is achieved. Furthermore, it is substantially the same as the holding member in the same direction.
Hold the pillow package with a holding member that moves at a speed
Since it is configured, the holding member sandwiches the pillow package.
With this, it becomes possible to transfer in a stable state. Moreover, goods collection
The position of the edge of the clamping member with respect to the container is almost constant.
Therefore, the ears should be bent with the bending position kept constant.
It can be bent at high speed and can be bent at high speed, and it can be folded beautifully.
Is achieved.

In the invention according to claim 2, since both the folding members are brought close to each other and the ears are pressed against the article accommodating portion after the pillow packaging body has entered, when the packaging body is transported between the folding members. Moreover, it is possible to prevent the surface of the package (packaging material) from being scratched by being strongly rubbed with the member .

[Brief description of drawings]

FIG. 1 is a schematic front view showing an ear shaping device according to a preferred embodiment of the present invention.

FIG. 2 is a schematic plan view partially crossing the ear shaping device according to the embodiment.

FIG. 3 is a schematic rear view showing a part of the ear shaping device according to the embodiment in a longitudinal section.

FIG. 4 is a vertical cross-sectional side view showing the transfer device of the ear shaping device according to the embodiment.

FIG. 5 is a schematic side view showing a part of the ear shaping device according to the embodiment in a longitudinal section.

FIG. 6 is a schematic perspective view of a pillow package that is bent by the ear shaping device according to the embodiment.

FIG. 7 is an explanatory diagram showing a process of bending the ear portion of the pillow package by the ear shaping device according to the embodiment.

[Explanation of symbols]

11 Pillow packaging 15 Article storage 16 End seal part 17 ears 30 endless chain (endless cord) 31 Placement member (holding member) 35 Endless Chain (Endless Cord) 36 Support member (holding member) 43 Clamping member 65 Upper folding member 66 Middle folding member 67 Lower folding member 74 Heater (heating means)

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-294304 (JP, A) JP-A-5-92499 (JP, A) Actual opening 5-3109 (JP, U) Actual opening Sho-57- 167005 (JP, U) Actual development Sho 55-170209 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65B 61/00

Claims (7)

(57) [Claims] 1. An article container (1) for a pillow package (11)
A ears shaping device that bends and shapes both ears (17, 17) formed on both sides sandwiching 5) along the side of the article storage (15), wherein the ears (17, 17) Face each other in the direction of separation and approach each other.
The end seal portions (1) that are disposed so as to be separated from each other and that are located with the end seal portions (16, 16) of the ear portions (17, 17) sandwiched therebetween.
A pair of holding members (43) for holding the article containing section (15) in a state where one of the parts from the (6, 16) to the article containing section (15) is folded along the side of the article containing section (15). , 43) and the pillow package (11) sandwiched between the both sandwiching members (43, 43).
The pillow package (11) is arranged on the opposite side of the sandwiching member (43, 43) with the ears (17, 17) of the pillow package (11, 17) sandwiched therebetween, and the article storage is performed in the direction in which the ears (17, 17) of the pillow package (11) are separated from each other. Pillow wrapping body (11) that is sandwiched by both sandwiching members (43, 43) so as to face each other so as to allow passage of the portion (15).
To enter the article storage section (1
5) a pair of folding members (65, 65) that are bent to the side sandwiched by the sandwiching members (43, 43), and heating means (74) disposed on both of the folding members (65, 65).
And a plurality of endless cords (30, 35) that are circulated and run at equal intervals.
Pillow wrapping that is sandwiched between the two sandwiching members (43, 43)
Holds the body (11) and is substantially in the same direction as the holding members (43, 43).
It from the holding member to move at a speed (31, 36), wherein both clamping members (43, 43) is a pillow package (11) both ears bent of (17, 17) are both folding members (65 The ear part shaping device for a pillow package, wherein the article accommodating part (15) is configured to be sandwiched until it enters between the (65, 65). 2. The pair of bending members (65, 65) are configured to be able to approach and separate from each other, and the both holding members (43, 43).
The pillow wrapping body (11) sandwiched between the two folding members (65, 6
The ear shaping device for a pillow package according to claim 1, which is configured to press the folded ears (17, 17) in proximity to each other after entering between 5). Wherein the region that is linearly lowered before cinchona end shaped cable body (30, 35), said holding member (31, 36) and said clamping member (43,4
3. The structure according to claim 1 or 3 is configured to move in the same direction.
Is an ear shaping device for a pillow package according to 2 . 4. The endless cord (30, 35) runs intermittently, and the endless cord (30, 35) is moved in correspondence with a stop position of the holding member (31, 36).
Claim pair of folding members (65, 65) is arranged 3
An ear shaping device for the pillow package described. 5. The ear portion of the pillow package according to claim 3, wherein the holding members (31, 36) are arranged to support the upper side and the lower side of the pillow package (11) to be lowered. Shaping device. 6. The spacing between the upper holding member (36) and the lower holding member (31) sandwiching the pillow package (11) can be adjusted according to the height dimension of the pillow package (11). Claims
5. An ear shaping device for a pillow package according to item 5 . 7. The pair of bending members (65, 65 ) are paired with each other.
And the pillow package sandwiched by the sandwiching members (43, 43).
(11) Another folding member pair mobile Direction Downstream side of (67)
Provided, this further folding member pair (67, 67) is according to any one of claims 1 to 6, functions to hold folded ear folding habit (17, 17) of the pillow package Ear shaping device.