JPH10114316A - Push-in type bag laying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lay a bag in a closely contacted state corresponding to size and shape of a box by constituting each push-in member to be attached to a push-in body in a manner adjustable to a length and an angle to be inserted along an inner wall face of each corner part of the box when the bag is to be laid in the box having an opened top face. SOLUTION: When a bag F is to be laid in a box B, each push-in member 53a is firstly adjusted to a length and an angle to be inserted along an inner wall face Bb of each corner part of the box B, and then, the box B is positioned. Next, the bag F being held by each fold-back pawl 48 is inserted into the box B and a push-in body 53 is made to descend so as to insert each push-in member 53a into the bag F. Then, the bag F is expanded from the inside by closely adhering the outer peripheral face of the side part of the bag F to the inner wall face Bb of each corner part, and the air is discharged from the interval between the box B and the bag F. At the same time, the end part of each push-in member 53a is abutted against the bottom side wall face in the box B, and the bottom outer peripheral face of the bag F is pressed to the bottom side wall face so as to lay the bag F by making its size equivalent to the inside of the box B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag pushing machine used for laying a bag made of synthetic resin or paper inside an open-top box made of, for example, cardboard or synthetic resin. The present invention relates to a laying device.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for laying a bag inside a box as in the above-described example, as shown in FIGS. 18 and 19, for example, as shown in FIGS. The body F is inserted, and each of the flaps Ba.
After covering the mouth portion Fa, the pushing frame 80 is inserted into the bag body F which is opened in a size corresponding to the opening on the upper surface side of the box body B.
Are inserted vertically into the bag body F along the inner wall surfaces on the four sides of the box body B, and the pressing plates 80a attached to the upper edges of the four sides of the pressing frame 80 are vertically inserted into the bag body F. There is a device for laying the bag F in an expanded state to a size corresponding to the above.

[0003]

However, the above-mentioned pressing plates 80a are respectively attached to the long holes 80b formed in the direction perpendicular to the four sides with respect to the upper edge on the four sides of the pressing frame 80, respectively. The hole 80d of the support plate 80c fixed to the back side of the pushing plate 80a communicates with the long hole 80b formed in the upper edge of one side of the pushing frame 80, and the screw members 90 are connected to each other.
And the nut members 91, the pressing plates 80a can be slidably fixed at positions inserted along the four inner wall surfaces of the box B. Since the pressing frame 80 is formed in the size and shape to be inserted, it is not possible to form the long holes 80b longer than the upper edge portion on the four sides of the pressing frame 80. In addition, the sliding of each of the pushing plates 80a is restricted within a range corresponding to the entire length of each of the elongated holes 80b, and there is a limit to the size of the bag F which can be expanded by each of the pushing plates 80a.
Accordingly, there is a problem that the size and shape of the box B are limited, and the applicable range is narrow. As another method, each of the pressing plates 80a... May be attached to each of the long holes 80b. Are restricted in the range corresponding to 80b, and there is a limit to the size of the bag body F that can be expanded by each of the pressing plates 80a.

Further, when a plurality of units each having four pressing plates 80a... Mounted on one pressing frame 80 corresponding to the size and shape of the box B are manufactured, it is equivalent to the inside of the box B. Although the work of laying the bag F to a certain size can be performed, every time the size and the shape of the box B change, the whole unit must be replaced, which takes time and labor for the replacement work, and the work efficiency is poor. Become. In addition, since a plurality of units are required for the operation, there is a problem that the manufacturing cost of the entire apparatus is high.

In view of the above problems, the present invention variably adjusts each pushing member attached to the pushing body to a length and an angle to be inserted along each inner wall surface of each corner of the box, and inserts the pushing member into the bag. Therefore, it is possible to secure a storage volume equivalent to that of the inside of the box, and to perform the work of laying the bag inside various kinds of boxes having various sizes and shapes with a single device, a bag pushing type laying device. The purpose is to provide.

[0006]

According to the first aspect of the present invention,
On the lower surface side of the pushing body, a plurality of pushing members formed in a long shape corresponding to the respective corners of the box body are attached so as to intersect vertically different steps, and the pushing members are attached to the box body. It is a bag pushing type laying device provided so as to be horizontally slidable in a direction facing the inner wall surface of each corner.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a bag is provided in which each of the pushing members is horizontally rotatable at an angle facing each of the inner wall surfaces of the corners of the box. It is a push-in type laying device.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the free end side of each of the pushing members is lowered in parallel with the inner wall surface of each corner of the box. It is a bag push-in type laying device in which each of the pushing members hangs down and the hanging-side end of each pushing member is formed to have a length to be brought into contact with the bottom wall surface inside the box body.

[0009] The invention according to claim 4 is the first and second inventions.
Alternatively, in combination with the configuration of the third aspect, the present invention is characterized in that the pushing body is a bag pushing type laying device formed in a size to be inserted into the inside of the box.

According to a fifth aspect of the present invention, in addition to the structure of the first or fourth aspect, the box and the pushing body are formed by pushing each of the pushing members along the inner wall surface of each corner of the box. Is a bag pushing type laying device provided with moving means for relatively moving each other in a direction vertically inserted into the bag body.

[0011]

In the bag pushing type laying apparatus according to the first aspect, each pushing member attached to the pushing body is inserted along the inner wall surface of each corner of a box having a different size, for example, large, medium or small. After adjusting the length of the bag, the pushing members are inserted into the bag along the inner wall surfaces of the corners, and the outer peripheral surface of the bag is brought into close contact with the inner wall surfaces of the corners of the box. Since the bag is forcibly expanded from the inside to the size corresponding to the inside of the box and air is forcibly exhausted from between the opposing sides of the box, the space between the box and the bag Unnecessary gaps are not formed, and the bag can be laid in a state where the outer peripheral surface of the bag is expanded to a size equivalent to the inside of the box, and the bag is laid inside the box having various sizes. Can be performed by one device.

According to a second aspect of the present invention, in addition to the operation of the first aspect, each of the pushing members attached to the pushing body is formed of a box having a different shape such as a square, a rectangle, or a polygon. After horizontally rotating at an angle facing each corner inner wall surface of the body, each pushing member is inserted into the bag body along each corner inner wall surface, so that each corner of the box body having various shapes is The bag can be laid in a state in which the outer peripheral surface of the bag is in close contact with the inner wall surface.

According to a third aspect of the present invention, in addition to the operation of the first or second aspect, each of the pushing members attached to the pushing body along the inner wall surface of each corner of the box body. Of the bag is vertically inserted into the bag body, and the drooping end of each pushing member is in contact with the bottom wall surface inside the box body, so that the bottom of the bag body with respect to the bottom wall surface inside the box body. Since the outer peripheral surface is closely contacted or pressed, the bag can be laid in a state where the bottom side of the bag is expanded to a size equivalent to the bottom of the box.

According to a fourth aspect of the present invention, there is provided a bag pushing type laying apparatus in which the entire pushing body is covered with an opening on the upper surface side of the box in addition to the operation of the first, second or third aspect. The box body is inserted into the bag body opened to the size corresponding to the inside or the upper side opening, and each pushing member is inserted into the bag body along each corner inner wall surface of the box body. Even when each of the flaps is bent or raised, the bag can be laid in a state where the bag is expanded to a size equivalent to the inside of the box.

According to the fifth aspect of the present invention, in addition to the operation of the first or fourth aspect, the bag pushing-in type laying apparatus relatively moves the box body and the pushing body by the moving means, thereby forming each corner of the box body. Since each pushing member is vertically inserted into the inside of the bag along the inner wall surface of the corner, the operation time required for the work of laying the bag is reduced, and the working efficiency is improved.

[0016]

According to the present invention, each push member attached to the push body is variably adjusted to a length and an angle to be inserted along each inner wall surface of each corner of the box and inserted into the bag. Therefore, the bag can be expanded to a size equivalent to the inside of the box in accordance with the size and shape of the box. In addition, since the bag is laid in close contact with the inside wall of the box, no unnecessary gap is formed between the box and the bag, and a storage volume equivalent to the inside of the box is secured. The operation of laying bags inside various boxes having various sizes and shapes can be performed by one apparatus.

Moreover, since the pushing members intersect at different heights, the pushing members can be prevented from interfering with each other, and the length can be easily adjusted. In addition, since the long pushing members can be attached in an intersecting state, the size of the bag body which can be expanded as compared with the conventional device becomes large, and the box bodies of various sizes corresponding to the size of the bag body. Can be used for the laying operation, and the applicable range of the present device is widened.

Furthermore, the hanging end of each pushing member is brought into contact with the bottom wall surface inside the box body, and the bag body is brought into close contact with or pressed against the bottom wall surface inside the box body, which is equivalent to the bottom of the box body. The bottom side of the bag can be laid to the size, and a storage volume equivalent to the inside of the box can be secured. In addition, by inserting the entire push body into the inside of the box, the work of laying the bag inside the box can be easily performed even when each flap of the box is bent or standing. Furthermore, since the box body and the pushing body are relatively moved, and each pushing member is vertically inserted into the inside of the bag body along each inner corner of the box body, the operation time required for laying the bag body is reduced. As a result, work efficiency can be improved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show a bag pushing type laying device used for laying a bag in a size corresponding to the inside of a box assembled in an open top form, and FIG. 1 and FIG. At the rear of the push-in type laying device 1, a supply mechanism 2 for supplying a synthetic resin film f to the feed path A is provided. A welding mechanism 3 for welding the film web f in the width direction, and a box B
And a separation mechanism 4 for separating the film raw material f into a size corresponding to the size of the film F.
The opening mechanism 5 for opening the opening Fa of the opening is provided. Above the front part of the apparatus, a covering mechanism 6 that holds an opening Fa of the bag body F and covers the box body B conveyed to the lower part on the same side.
And a pushing mechanism 7 for pushing the bag F into the box B.
And are arranged. Bag F held by coating mechanism 6
A folding mechanism 8 for bending each of the flaps Ba... Of the box B substantially vertically is provided below the box B, and a box feed conveyor for transporting the box B assembled in an open top form is provided below the folding mechanism 8. 9
And a lifting mechanism 10 that lifts and lowers the box B stopped on the box feed conveyor 9 in the direction in which the bag F is inserted.

The above-described supply mechanism 2 folds a tubular film raw material f formed of a transparent or translucent synthetic resin film into a flat state (eg, a gusset-folded state or a flat-folded state), and The raw material f is wound into a roll shape, and is rotatably loaded and set in a film loading section 11 disposed at a lower portion on the starting end side of the feed path A. The film f is fed by a feed roll 12, a press roll 13, a lifting roll 14 (dancer roll), and a feed roll 15 and a press roll 16 arranged on the end side of the feed path A. For example, the feed rolls 12 and 15 are stretched by a motor with a speed reducer (not shown).
Is rotated in the feed direction, and the film source f pressed by the rolls 12 and 13 is supplied in the feed direction.
4, the feed amount of the film raw material f is adjusted, and the film raw material f pressed by the rolls 15 and 16 is fed out and supplied in the vertical direction.

The above-mentioned welding mechanism 3 has a mounting frame 17 erected in the middle of the feed path A so as to be movable back and forth in the feed direction, A heating member 18 and a receiving member 19 are provided so as to face the upper and lower surfaces of the raw material f, and a holding cylinder 20 provided at an upper portion of the frame and a receiving cylinder 21 provided at a lower portion of the frame.
The members 18 and 19 are pressed against the upper and lower surfaces of the raw film f by the synchronous operation with the above, and the pressed portion of the raw film f is heated and welded in the width direction by the heating member 18. Immediately before that, the pressing plate 22 faces the upper and lower surfaces of the film web f.
And a receiving plate 23 are provided, and the holding plate 22 is
The upper and lower surfaces of the film raw material f are pressed by the plates 22 and 23 by moving up and down together with 8.

Further, the lower end of the mounting frame 17 is
A worm wheel 25 fixed on one end side and a worm gear 26 pivotally supported on the lower side of the worm gear 25 are screwed together with a screw shaft 24 mounted parallel to the worm gear 26 and fixed to one end side of the worm gear 26. The screw shaft 24 is rotated in the forward and reverse directions in the feed direction by the rotating operation of the operation handle 27 or the driving force of a drive motor (not shown), and the entire mounting frame 17 is moved back and forth in the feed direction, thereby welding the film web f. The position is variably adjusted according to the size of the box B.

The above-mentioned separating mechanism 4 supports the feed roll 15 and the press roll 16 on the lower surface side of the mounting frame 28 provided at the end of the feed path A, and feeds the film material pressed by the rolls 15, 16. Pressing member 2 facing lower front and rear surfaces of f
9 and the receiving member 30 are disposed, and the pressing member 29 is moved back and forth by the operation of the pressing cylinder 31 disposed at the rear portion of the roll 20, and the cut portions of the film web f are pressed by the members 29 and 30. . The cutting blade 33 is reciprocated in the width direction while protruding toward the receiving surface of the receiving member 30 by the operation of the rodless cutting cylinder 32 disposed at the rear portion of the roll 15, and is pressed and held by the members 29 and 30. The film raw material f thus cut is cut in the width direction to separate and form one bag F.

The opening mechanism 5 described above faces the lower front and rear surfaces of the film web f pressed by the members 29 and 30 on the lower side of the separation mechanism 4 and is, for example, a negative air blower, a vacuum pump or the like. Each of the roll-type adsorbers 34, 34 connected to a pressure generating means (not shown) is provided.
Are mounted on the front surfaces of the movable frames 35, 35 disposed at the front and rear portions so as to face each other. The opening cylinder 36 provided on one side is connected to one end of the front movable frame 35, and the opening cylinder 37 provided at the center is connected to the rear side of the rear movable frame 35, so that each opening By the synchronous operation of the cylinders 36 and 37, each movable frame 35 is moved to a suction position where the adsorbers 34 and 34 are in close contact with the front and rear surfaces of the film web f and an opening position where the opening Fa of the bag body F is opened. , 35 are moved back and forth.

As shown in FIG. 3, the above-described adsorber 34 includes bearings 35 fixed to both ends of the movable frame 35 on the front side.
The gear 38 fixed to one end of the adsorber 34 and a rack 39 disposed at one end of the movable frame 35 are meshed with each other. By operating the disposed turning cylinder 40, the adsorber 34 is rotated in the turning direction via the gear 38 and the rack 39, and each of the suction holes 34a formed in the adsorber 34 is turned sideways so as to face the film raw material f. Rotate forward and backward to a position and an upward position where each of the intake holes 34a is directly above. And each bearing part 35a, 35a
A plurality of sheets (for example, 2
, 3 and 4) are fixed at predetermined intervals, and the pressing cylinder 43 fixed to the center on the back side of the movable frame 35 is moved to the center of the support shaft 41. The fixed movable piece 41a is moved up and down to move the movable frame 35 and the movable piece 41.
a, and each bag pressing plate 42 is pressed against the upper peripheral surface of the adsorbent 34 against the elasticity of the spring member 44 stretched between the adsorbent 34 and an appropriate distance from the same. Pivots up and down to the open position spaced apart from.

As shown in FIG. 4, the covering mechanism 6 is located at a height where the opening operation of the opening mechanism 5 is allowed, and the bag body F opened by the suction elements 34, 34. Each movable plate 45,
The movable plates 45, 45 are moved up and down by the operation of the lifting cylinders 46, 46 fixed to the horizontal ends of the movable frames 59, 59 described later. .. With respect to the raised position retracted above the opening Fa of the bag body F opened by the above-described opening mechanism 5 and each flap Ba of the box body B lifted by the box elevating mechanism 10 described later. Each of the folded claws 48 moves up and down to a lower position where the opening Fa of the bag body F held open is covered.
In addition, the movement of the movable frames 59, 59 adjusts the expansion and contraction in accordance with the size of the box B.

On the movable plate 45, two folding claws 48, 48 are fixed on a support shaft 47 which is mounted on the lower surface side of the plate, and the interval between the folding claws 48, 48 is set in a box body. It is provided so as to be adjustable in size according to the size of B. Support shaft 47
The gear 49 fixed to one end of the gear and the rack 50 provided at the same end are engaged with each other, and the opening / closing cylinder 51 provided at the same side is actuated so that the gear 49 and the rack 50 are interposed. Then, each folding claw 48, 48 is connected to the opening mechanism 5 described above.
The opening for opening the mouth Fa of the bag F to a size to be covered with respect to the flaps Ba... Open and close to the position. By the operation of the closing angle cylinder 52 fixed to the central portion on the lower surface side of the movable plate 45, the movable piece 47a fixed to the central portion of the support shaft 47 is moved up and down.
Is rotated to a closing angle at which the holding of the opening of the bag F is released.

As shown in FIGS. 5 and 6, the pushing mechanism 7 is located at a height position where the holding operation of the covering mechanism 6 is allowed, and the opening is held by each of the folding claws 48. A mounting frame 54 is erected in opposition to the opening Fa of the box F, and the lower surface of the mounting frame 54 is opposed to the inner bottom surface of the box B which is shifted to the left conveying surface of the box feed conveyor 9 described later. Then, a plate-shaped pushing body 53 is provided. The pushing body 53 is formed in a size that can be inserted into the inside of the box B of the minimum size, and has an inverted L-shape on the lower surface corresponding to the inner wall surfaces Bb of each corner of the box B. Four of the formed pushing members 53a are vertically provided.

The horizontal ends of the pushing members 53a are inserted into the supporting members 55 attached to the lower corners of the pushing body 53 so as to be horizontally slidable.
5 is tightened and fixed by the adjusting levers 55a, 55a attached to one side surface of the pushing member 53a, and each of the pushing members 53a is vertically inserted along each corner inner wall surface Bb. The push-in members 53a are adjusted to come and go. A screw shaft 55b fixed to the upper end side of the support member 55 is screwed up and down slidably with respect to the lower corner of the pushing body 53, and each nut 55c is connected to the upper end and lower end of the screw shaft 55b. , 55
c, and screw nuts 5c, 55c to
By tightening and fixing 5a, each support member 55 is adjusted up and down to a height at which the horizontal end of each push member 55a intersects vertically. And each nut 55c, 55c
Is released, and the pushing member 53a is horizontally rotated around the screw shaft 55a, so that the vertical end portions of the pushing members 53a are set at angles facing the inner wall surfaces Bb of the corners of the box B. Is adjusted to rotate. In addition, each pushing member 53a
Are formed in a long dimension that crosses the upper and lower steps, and the other vertical side ends are suspended in parallel along the inner wall surfaces Bb of each corner of the box B, and B is formed to have a length that abuts against the bottom wall surface inside B.

The above-mentioned pushing body 53 pushes each pushing member 53a... Above the opening Fa of the bag body F held by the above-mentioned covering mechanism 6 by the operation of the pushing cylinder 54a erected on the mounting frame 54. The pushing members 53a are moved up and down between the retracted ascending position and the lowering positions where the pushing members 53a are inserted along the respective inner corners Bb of the box B lifted by the box elevating mechanism 10 described later. Each pushing member 53a
Are variably adjusted to the length and angle to be inserted along the inner wall surfaces Bb of each corner of the box B in accordance with the size and shape of the box B, as shown in FIG.

The above-mentioned bending mechanism 8 includes guide rails 56, 56 erected on the upper part of the apparatus in parallel with the feeding direction of the box feeding conveyor 9, and upper and lower tiers mounted on the upper right side of the box feeding conveyor 9. Screw shafts 57, 57 and guide rail 58
At the same time, the horizontal and vertical portions of the movable frames 59, 59 formed in an upside-down L-shape are slidably engaged in the feed direction,
By rotating the operation handle 57a fixed to one of the screw shafts 57 or by the driving force of a drive motor (not shown), the respective screw shafts 57, 57 are rotated forward and reverse via the sprockets 60a, 60a and the chain 60b, Each movable frame 59, 5
The interval 9 is adjusted in accordance with the size of the box B lifted by the box lifting mechanism 10 described later.

Each of the bending members 61, 61 is located immediately below the bag F held by the above-described covering mechanism 6 and faces each flap Ba of the box B lifted by the elevating mechanism 10, which will be described later. , 62, 62, 63 are arranged at the same height. Each of the bending members 61, 62, 63 is shown in FIG.
As shown in FIG. 3, the flaps Ba are formed to have a width which is pressed against the plane portions thereof, and the rollers 61a, 62a, 63a are rotatably supported at both lower edge sides thereof so as to be freely rotatable.

Each of the bending members 61, 61 has a support frame 59a erected at a vertically intermediate portion of the movable frame 59 in a direction perpendicular to the transport surface of the box feed conveyor 9, and is provided at an intermediate portion of the support frame 59a. By the operation of the fixed reciprocating cylinders 61b, 61c, the forward position of the box body B moved inside the front and rear flaps Ba, Ba, and the intermediate position close to the interval at which the flaps Ba, Ba are bent substantially vertically. At this time, each of the flaps Ba, Ba is moved to a retracted position where it is bent substantially horizontally. Each of the bending members 62, 62 is moved to the above-described position by the operation of each of the advance / retreat cylinders 62b, 62c fixed to the distal end portion of the support frame 59a, and is moved to the above-described position by the operation of the advance / retreat cylinder 62d. Is horizontally moved to a position facing the left side flap Ba of the first position. The folding member 63 has a support frame 64 erected on the right side of the box feed conveyor 9 and is moved to the above-described positions by the operation of the advance / retreat cylinders 63b and 63c fixed to the support frame 64, and The body B is attached at a position facing the right flap Ba so as to be able to advance and retreat.

At the vertical ends of the movable frames 59, 59, the box support arms 65, 65 face the front and rear surfaces of the box B conveyed directly below the bag F by the box feed conveyor 9. The box support arms 65, 65 are pressed against the front and rear surfaces of the box body B by the operation of the rotary type rotation cylinders 66, 66 fixed to the side ends so as to be horizontally rotatable. The horizontal rotation is performed between the position and the retreat position where the transport of the box body B is allowed. The distance between the box support arms 65, 65 is adjusted by moving the movable frames 59, 59 in accordance with the size of the box B.

As shown in FIG. 8, the box feed conveyor 9 described above has a number of feed rolls 9b... In the feed direction between the opposing surfaces of the mounting frames 9a, 9a provided on both sides. Each feed roll 9b is rotated by a driving force of a feed motor with a speed reducer (not shown) at a predetermined interval, and the box B placed on each feed roll 9b is fed in the feed direction. Transport to In addition, on the right side of the box feed conveyor 9, a box B stopped by the respective box support arms 65, 65 is provided.
The width-adjusting plate 67 is disposed so as to face the right side surface of the device.
A forward position pressed against one side surface of the box B;
With respect to the retracted position separated by a predetermined interval.

The elevating mechanism 10 has the guide rails 69, 69 standing vertically at predetermined intervals on the left side of the box B stopped by the box support arms 65, 65. , 69, the rear end of the lifting frame 70 is slidably engaged with the lifting frame 70.
The lifting chains 74, 74 are horizontally fixed between the sprockets 72, 72, which are supported on the upper sides on both sides, and the sprockets 73, 73, which are supported on the lower sides on both sides.
And the ends of the lifting chains 74, 74 are connected to the lifting frame 7
0, and each of the sprockets 75a, 75 is driven by a driving force of a lifting / lowering motor 75 with a speed reducer disposed on one side of the lower part.
a and the lifting chains 74, 7 via the chain 75b.
4 in the vertical direction, and the mouth Ba of the bag body F held by the above-described covering mechanism 6 is connected to each flap Ba of the box body B.
And the above-mentioned bending members 61,
The lifting frame 70 is moved up and down between an intermediate position where 62 and 63 are inserted between the flaps Ba of the box body B and a descending position where it is immersed below the conveying surface of the box feeding conveyor 9.

A box B is provided between the receiving claws 71, 71.
The adsorber 71a connected to the negative pressure generating means (not shown) is attached to the bottom face of the receiving claws 71, 7 upward.
The adsorbent 71a is brought into close contact with the bottom of the box B placed on the top 1 to hold it by suction. Further, the insertion guides 76, 76 are disposed facing the front and rear surfaces of the bag body F held by the covering mechanism 6, and the advance / retreat cylinders 77, 77 disposed at the front and rear portions, respectively.
Moves to a forward position where the bag body F held by the covering mechanism 6 is restricted to a vertical position inserted into the box body B, and a retracted position where the operation of the opening mechanism 5 and the elevating mechanism 10 is allowed. .

The illustrated embodiment is constructed as described above, and the operation of laying the bag F by bending each flap Ba of the box B substantially vertically by the bag pushing type laying device 1 will be described below. . First, as shown in FIG. 7, each of the pressing members 53a... Constituting the pressing mechanism 7 is variably adjusted to a length and an angle to be inserted along each corner inner wall surface Bb. As shown in FIG. 5, the respective box support arms 65, 65 are pressed against the front and rear surfaces of the box B conveyed by the box feed conveyor 9 and stopped, and the width shift plate 67 is pressed against the right side of the box B. The width is shifted to the left transport surface of the box feed conveyor 9.

Next, as shown in FIGS. 9 and 10, each bending member 61, 61, 62, 62, 63 of the bending mechanism 8 is moved to a position where it is inserted between the flaps Ba. The box body B is moved forward, and the box B is lifted to the intermediate position by the receiving claws 71, 71 of the elevating mechanism 10, and the bending members 61, 61,
After inserting 62, 62, 63 between the flaps Ba... Of the box body B, the box support arms 65, 65 and the width approaching plate 67 are retracted and returned to the initial positions, and the bending members 61, 61, 6
2, 62, 63 are retracted, and the flaps Ba... Of the box B are bent so as to be substantially horizontal. Subsequently, as shown in FIG. 11, each bending member 61, 61, 62, 6
2 and 63 are moved forward to the intermediate position to approach the flaps Ba... Of the box B, and then the box B is lifted to the raised position by the receiving claws 71, 71 to bring the flaps Ba. And bend it.

On the other hand, as shown in FIGS. 1 and 2, the supply mechanism 2 is driven to supply the film roll f wound into a roll to the welding mechanism 3 and the separation mechanism 4, After the film web f is heated and welded in the width direction by the heating member 18,
Return to the initial position. After hanging the film raw material f downward by a dimension corresponding to the size of the box B, the opening mechanism 5
The upper side pressed by the respective adsorbers 34, 34 is cut in the width direction by the cutting blade 33 of the separation mechanism 4. To form one bag F separately.

Next, the suction elements 34, 34 are rotated in the pulling-down direction to suction-hold the cut-side end (for example, a portion separated by about 10 mm) of the bag body F by the negative pressure generated in each of the suction holes 34a. Then, each adsorber 34, 34 is rotated in the turning direction,
After the mouth Fa of the bag F is slightly peeled off, each adsorber 34, 3
The opening Fa of the bag body F sucked and held in step 4 is connected to each bag pressing plate 42.
Press and fix. As shown in FIG.
4 and 34 are relatively moved in the separating direction so that the mouth Fa of the bag body F
Are inserted horizontally into the opening Fa of the bag body F opened by the adsorbents 34, 34, and each of the folding claws 48 of the covering mechanism 6 are inserted. After Fa is held open, the suction holding by the suction elements 34, 34 is released, and the pressing and fixing by the bag pressing plates 42 is released.

Next, as shown in FIG. 13, after each of the bending members 61, 61, 62, 62, 63 is retracted, the bag F held by each of the folding claws 48. B, the pushing body 53 of the pushing mechanism 7 is vertically lowered, and each pushing member 53a is inserted into the bag body F.
As shown in FIG. 14, the mouth portion Fa of the bag body F held by the folding claws 48 is folded outward (for example, in a single folded state or a double folded state), and the inner wall surface Bb of each corner of the box body B is folded. Along each pressing member 53 of the pressing body 53
a is vertically inserted into the bag body B. The bag F is forcibly expanded from the inside to a size corresponding to the inside of the box B while the side outer peripheral surface of the bag F is in close contact with the inner wall surface Bb of each corner of the box B, Air is forcibly vented from between the box B and the bag F. At the same time, the hanging end of each of the pushing members 53a contacts the bottom wall surface inside the box B, and the bottom outer peripheral surface of the bag body F is pressed or pressed against the bottom wall surface inside the box B. The bag body F is laid in the same size as the inside of the body B, and the mouth portion Fa of the bag body F held by the folding claws 48 is covered and set on each flap Ba of the box body B.

Next, as shown in FIG. 15, each bending member 61, 61, 62, 62, 63 is connected to each flap B of the box B.
a, and each of the folding claws 48 is rotated in the closing direction to return to the initial position.
3a are pulled out of the box body B and the bag body F and raised and returned to the initial position, and the adsorbents 34 and 34 are moved and returned to the initial position, and then the bending members 61, 61, 62, 62 and 63 are initialized. Then, the receiving claws 71 are vertically lowered to the lowering position, and the cardboard box B having the bags laid thereon is placed on the box conveyor 9 and transported to the next step. In the same manner as described above, the work of laying the bag body F is continuously performed.

FIGS. 16 and 17 show the flaps B of the box B.
Another operation example of the bag pushing type laying device 1 for laying the bag body B while a... is standing substantially vertically is shown, and each bending member 61, 61, 62, 62, 63 of the bending mechanism 8 is shown. In the retracted position, and inside the box B lifted by the receiving claws 71, 71 of the elevating mechanism 10, the folding claws 48 of the covering mechanism 6 are placed.
Insert the bottom side of the bag body F held by
1, 61, 62, 62 and 63 are each flap Ba of the box B
, And the mouth portion Fa of the bag body F held by each of the folding claws 48 is turned outward to form a box B standing upright.
Are covered. At the same time, the pushing mechanism 7
Of the pushing body 53 into the box B and the box B
Along the inner wall surfaces Bb of the respective corners.
Is vertically inserted into the bag body F, and the inner wall surface B of each corner of the box body B is inserted.
b, the outer peripheral surface of the side of the bag F is brought into close contact with the inner peripheral surface of the bag B, and the outer peripheral surface of the bottom of the bag F is brought into close contact with the bottom side wall surface of the box B. The bag body F can be laid in a desired size and shape, and the pushing body 53 is inserted into the inside of the box body B. Therefore, the laying operation of the bag body F even when each of the flaps Ba. Can be performed.

As described above, the pushing members 53a of the pushing body 53 constituting the pushing mechanism 7 are variably adjusted to the length and the angle to be inserted along the inner wall surfaces Bb of the corners of the box B. Therefore, the bag F can be expanded to a size equivalent to the inside of the box B in accordance with the size and shape of the box B. Moreover, since the bag F is laid in close contact with the inner wall surface of the box B, an unnecessary gap is not formed between the box B and the bag F, which is equivalent to the inside of the box B. A large storage volume can be secured, and the work of laying the bag body F inside the various box bodies B having various sizes and various shapes can be performed by one apparatus.

In addition, since the pushing members 53a intersect at different heights, the pushing members 53a can be prevented from interfering with each other, and the length can be easily adjusted. and,
Since the long pressing members 53a can be attached in an intersecting state, the size of the bag body F which can be expanded as compared with the conventional device becomes larger, and boxes of various sizes corresponding to the size of the bag body F are provided. The body B can be used for laying work, and the applicable range of the present device is widened.

Further, the hanging end of each of the pushing members 53a abuts against the bottom wall surface inside the box B, and the bag F is brought into close contact with or pressed against the bottom wall surface inside the box B. The bottom side of the bag body F can be laid in a size equivalent to the B bottom. In addition, by inserting the pushing body 53 into the box B, the work of laying the bag F inside the box B can be performed even when each of the flaps Ba. Easy to do. Furthermore, the box B and the pushing body 53
Are relatively moved, and the pushing members 53a are vertically inserted into the bag body F along the inner wall surfaces Bb of the corners of the box body B, so that the operation time required for the work of laying the bag body F is shortened. In addition, work efficiency can be improved.

In correspondence with the configuration of the present invention and the above-described embodiment, the moving means of the present invention includes a pushing cylinder 54a of the pushing mechanism 7 of the embodiment, a guide rail 69 of the lifting mechanism 10 and a lifting frame 70. , The receiving pawl 71, the sprockets 72 and 73, the elevating chain 74, the elevating motor 75, the sprocket 75a, and the drive chain 75b. It is not something to be done.

In the above-described embodiment, the opening Fa of the bag body F is opened by the roll-type adsorbers 34, 34.
For example, the mouth portion Fa of the bag body F may be suction-held and opened by a pad-type adsorber (not shown), or the bag body F may be opened by an adhesive member such as an adhesive or an adhesive tape, or a holding member such as a chuck. May be opened.

Further, the opening Fa of the bag F fed out in the horizontal direction may be held by the respective adsorbents 34 and 34 and opened in the vertical direction, and the opening Fa in the embodiment is not limited to the opening direction. Absent. Furthermore, pressurized air is discharged from an injection nozzle (not shown) provided near the folding claws 48 or on the pushing body 53 to expand the bag body F held by the folding claws 48 to an appropriate size. May be.

[Brief description of the drawings]

FIG. 1 is a side view showing a laying operation by a bag pushing type laying device.

FIG. 2 is a front view showing a laying operation by a bag pushing type laying device.

FIG. 3 is a side view showing an attached state of a suction element constituting the opening mechanism.

FIG. 4 is a side view showing an attached state of a folded claw constituting a coating mechanism.

FIG. 5 is a front view showing an attached state of a pushing member constituting the pushing mechanism.

FIG. 6 is a plan view showing a mounting state of a pushing member.

FIG. 7 is a plan view showing a retracting state and a rotating state of the pushing member.

FIG. 8 is a plan view showing an arrangement state of a box feed conveyor and a lifting mechanism.

FIG. 9 is a side view showing the flap bending operation of the box.

FIG. 10 is a plan view showing a flap bending operation of the box.

FIG. 11 is a side view showing the approaching operation of the bending member and the raising operation of the box.

FIG. 12 is a side view showing a holding operation by the covering mechanism.

FIG. 13 is a side view showing the operation of inserting the bag.

FIG. 14 is a side view showing the folding operation and the covering operation of the bag body.

FIG. 15 is a side view showing the operation of extracting the folding claw and the pushing member.

FIG. 16 is a side view showing another operation example in which the flap of the box is erected and laid.

FIG. 17 is a side view showing the folding operation and the covering operation of the bag body.

FIG. 18 is a side view showing a state in which a bag is laid by a conventional device.

FIG. 19 is a plan view showing a laid state of the bag body.

[Explanation of symbols]

 F: Bag body Fa: Mouth B: Box body Ba: Flap Bb: Inner wall surface at corners 1 ... Bag push-in type laying device 2 ... Supply mechanism 3 ... Welding mechanism 4 ... Separation mechanism 5 ... Opening mechanism 6 ... Coating mechanism 7 ... Pushing mechanism 8 ... Bending mechanism 9 ... Box feed conveyor 10 ... Elevating mechanism 34 ... Adsorber 48 ... Folding claw 53 ... Push body 53a ... Pressing members 61,62,63 ... Bending member 70 ... Elevating frame 71 ... Receiving claw

Claims (5)

[Claims] 1. A push body is inserted into a bag body opened to a size corresponding to the opening on the upper surface side of the box body, and the outer peripheral surface of the bag body is laid in close contact with the inside of the box body. A plurality of pushing members formed in a long shape corresponding to the respective corners of the box are attached to the lower surface side of the pushing body so as to intersect at different heights, and A bag pushing type laying device in which a pushing member is provided so as to be horizontally slidable in a direction facing the inner wall surfaces of the corners of the box. 2. The apparatus according to claim 1, wherein each of said pushing members is horizontally rotatable at an angle opposed to an inner wall surface of each corner of said box.
The bag pushing type laying device as described in the above. 3. The free end side of each of said pushing members hangs downward in parallel with the inner wall surface of each corner of said box, and the hanging end of each pushing member is attached to the bottom side inside said box. 3. The bag pushing type laying device according to claim 1, wherein the laying device is formed to have a length in contact with a wall surface. 4. A bag pushing type laying device according to claim 1, wherein said pushing body is formed to have a size to be inserted into said box body. 5. A moving means for relatively moving the box and the pushing body relative to each other in a direction in which the pushing members are vertically inserted into the bag along the inner wall surfaces of the corners of the box. The bag pushing type laying device according to claim 1 or 4.