JP2001225811A - Bag placing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag placing apparatus wherein working time of the entire apparatus can be largely reduced, thereby saving labors and improving efficiency. SOLUTION: A pair of right and left opening units 53 constituting an opening mechanism 50 are reciprocatingly moved at a distance to allow a loading operation of a loading mechanism 60, and a mouth Fa of a bag F pulled up by a pull-up mechanism 40 is kept open using time required to load the bag F. Time required by the opening mechanism 50 to open the bag F is used to supply a next bag F held by the pull-up mechanism 40 to the opening mechanism 50. When placing a bag, a support 74 is pushed against an external surface of a corner of flaps Ba... constituting a box B to keep side rims of the flaps Ba... in contact approximately at the right angle. After the mouth Fa of the bag F is put over the flaps Ba... of the box B, the box B is raised to a predetermined height by a lift 75 or 76.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a single or composite material such as synthetic resin or paper inside a container such as a cardboard or cardboard box, a synthetic resin or metal container case, or the like. The present invention relates to a bag laying device used for laying a formed bag.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for laying the above-mentioned bag, as shown in FIG. 12, for example, a bag folded flat by four adsorbers 81 attached to front and rear support frames 80 is used. After sucking and holding the mouth Fa of the body F, the body F is horizontally moved above the box B while separating the front and rear support frames 80 to open the mouth Fa of the bag F to a predetermined size. Next, the bag body F opened and held by the adsorbers 81 is inserted into the inside of the box body B, and the loading frame 82 waiting above the box body B is inserted into the mouth Fa of the bag body F, and the bag body F is removed. After being loaded into the inside of the box B, the loading frame 82 is stopped and raised to a height at which the reciprocating movement of the support frame 80 is allowed, and the adsorbers 81 are returned to the initial position indicated by the phantom line in the figure. There is a laying device.

[0003]

However, in the above-described apparatus, the loading frame 82 is vertically inserted into the substantially central portions of the support frames 80, 80 which are spaced apart from each other, and the bag F is loaded into the box B. Therefore, after the laying operation is completed, if the adsorbents 81 are to be returned to the imaginary line positions in the drawing,
Then, a rod or a guide shaft of an elevating cylinder (not shown) fixed to the upper surface of the loading frame 82 abuts on the loading frame 82 to hinder mutual operations. If it is not raised, the work cannot be continued.

Until the loading operation of the bag body F by the loading frame 82 is completed, the adsorbents 81 cannot be moved to the imaginary line position, and the work must be stopped or stopped during that time. There is a problem that efficiency is poor.

When the mouth portion Fa of the bag F is covered with the flaps Ba of the box B, if the flaps Ba are open outward, the bag F may be caught on the flap Ba, It may be caught between Ba and it is difficult to lay it mechanically. In addition, when the bag F is covered with the thin bag F, not only the bag F is easily damaged, but also when the box B is lowered vertically, the opening F of the bag F
Since a is easily lifted by the wind pressure, there is also a problem that it is difficult to maintain the covering state.

In view of the above problems, the present invention moves the pair of left and right bag opening means without obstructing the loading operation of the bag loading means, thereby greatly reducing the working time, saving labor and improving the performance. Can be achieved. Further, it is an object of the present invention to provide a bag laying apparatus which can easily perform an operation of covering a mouth portion of a bag body with a flap of a container.

[0007]

According to the first aspect of the present invention,
A bag laying device for holding and opening a mouth of a bag having a predetermined size by a pair of left and right bag opening means, and then loading the bag by bag filling means into the inside of the container having an open upper surface. In addition, the pair of left and right bag opening means is provided at an interval in which the loading operation of the bag loading means is allowed, and each of the bag opening means, a holding position for holding the mouth of the bag body, It is a bag laying device provided with a moving means for moving the bag body to a loading position for loading the container.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the bag is supplied to the holding position so that the bag can be held by the bag opening means during the opening operation of the bag opening means. A bag laying device provided with a bag supply means.

According to a third aspect of the present invention, in addition to the configuration of the first aspect, when the bag is loaded into a container, the flaps connected to the opening side peripheral portion of the container are raised substantially vertically. The bag laying apparatus is provided with flap supporting means for supporting the flaps in a state where the flaps are in contact with each other and supporting the side edges of the flaps in a state where they are in contact with each other.

According to a fourth aspect of the present invention, in addition to the configuration of the first or third aspect, when the opening of the bag is coated on each flap of the container by the bag loading means, the container is raised to a predetermined height. A bag laying device provided with a box elevating means for raising the container to a predetermined height when the mouth of the bag is covered with a flap of the container.

[0011]

According to the first aspect of the present invention, the bag laying device drives the moving means to move the pair of left and right bag opening means to the holding position, and holds the mouth of the bag supplied to the holding position. After the pair of left and right bag opening means have been moved to the loading position or during the movement, the mouth of the bag is opened. The bag loading means is driven to load the bag body opened and held by the pair of left and right bag opening means into the inside of the container (for example, a box body), and the time required for loading the bag body is used to open the bag opening means. Move to the supply position,
Next, the bag to be supplied is held and opened.

According to the second aspect of the present invention, in addition to the operation of the first aspect, when the opening of the bag is opened by the bag opening means, the bag supply means is driven to drive the next bag. Is supplied so as to be held by the bag opening means.

According to the third aspect of the present invention, in addition to the operation of the first aspect, when the bag is loaded into the container, each of the flaps of the container is supported by the flap supporting means so as to stand substantially vertically. Then, the side edges of each flap are supported in a state where they are in contact with each other.

According to a fourth aspect of the present invention, there is provided a bag laying apparatus in which the opening of the bag body is supported at a predetermined height by the bag elevating means, together with the operation of the first or third aspect. After each flap, the container is raised to a predetermined height and supplied to the next step.

[0015]

According to the present invention, the pair of left and right bag opening means are moved without obstructing the loading operation of the bag loading means, so that they can be prevented from interfering with each other and the bag loading means can be prevented. By using the time required for loading the bag body, the next bag body supplied by the bag supply means can be held and opened, so that the working time of the entire apparatus is greatly reduced, and labor is saved. And the ability can be improved.

In addition, since the preparation operation for opening the next bag by the bag supply means is performed by utilizing the time required for opening the mouth portion of the bag by the bag opening means, the bag opening means is moved to the holding position. Upon return, the bag can be immediately held and opened immediately, and the operation of opening the bag can be performed efficiently.

Furthermore, since the flaps of the container are supported by the flap supporting means in a substantially vertically upright state, and the side edges of the flaps abut against each other, for example, the mouth of the bag is covered with the flap of the container. In this case, the bag body can be laid smoothly without being caught by the flaps or being caught between the flaps, without damaging the bag bodies, and the laying operation can be performed mechanically.

Furthermore, after covering the mouth of the bag with the flap of the container, the container is lifted to a predetermined height by the box raising / lowering means and supplied to the next step. It can be prevented from being lifted up or turned up by wind pressure, and can keep a covered state.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show, as an example of a container, a bag laying device used for laying a bag inside a box having an open upper surface, and in FIGS. 1 and 2, the bag laying device 1 A supply mechanism 10 for supplying a tubular film web f is disposed at the beginning of the path, and a sealing mechanism 20 for heat-sealing the film f to a predetermined length, and a predetermined length at the rear of the supply mechanism 10. And a separation mechanism 30 for separating into
0, a pulling mechanism 40 for pulling up the bag F to a predetermined height.
And an opening mechanism 50 for opening and holding to a predetermined size, and a loading mechanism for loading the bag body F into the inside of the box body B conveyed to the laying position c on the conveyance path on the upper side of the opening mechanism 50. A transport conveyor 70 for transporting the box B is provided below the loading mechanism 60.

The above-described supply mechanism 10 is configured to fold a synthetic resin film f having translucency folded in a flat state (for example, a gusset-fold state or a flat-fold state) and wound into a roll. Film loading unit 1 provided at the start end of the non-supply path
1, the guide roll 12, the feed roll 13, the pressing roll 14, and the dancer roll 15 are rotated in the supply direction, and the seal mechanism 20 disposed at the seal position a on the supply path, b. Separation mechanism 30
And supply.

In place of the film raw material f, for example, bags F formed in a predetermined size may be supplied one by one, or bags F made of paper or a composite of synthetic resin may be supplied.

The above-mentioned sealing mechanism 20 is used to
The upper and lower surfaces are pressed by the pressing member 21 and the receiving member 22, and the rear side is pressed by the heating head 23 and the receiving member 24, so that the raw film f is moved at a length position substantially corresponding to the box B. In addition to heat sealing in the width direction, the feed roll 25 on the rear side
And the press roll 26 are rotated in the supply direction to supply the raw film f to the separation mechanism 30.

As shown in FIG. 3, the separating mechanism 30 rotates the separating unit 31 up and down by a rotating means such as an air cylinder, for example, and moves the separating unit 31 between a pair of adsorbers 34. The horizontal posture (indicated by a virtual line in the drawing) in which the anti-f is supplied, and the upward posture (solid line in the drawing) in which the opening side of the raw film f (or the bag body F) sucked and held by the pair of adsorbers 34 faces upward. (Indicated by). Further, as another example of the rotating means, an actuator such as a solenoid or a motor may be used.

The cutting blade 32 installed on the upper left side in the figure is reciprocated in the width direction by a rodless moving cylinder 32a installed on the lower stage, and the original film f is pulled up by a predetermined length by a pulling unit 43 described later. At this time, the film raw material f suction-held by the pair of suction elements 34 is cut in the width direction.

The pair of holding members 33 provided on the upper stage of the cutting blade 32 are pressed to the upper side surface from the cut portion of the film web f, and the pair of adsorbers 34 provided on the lower stage are provided with the cut portion of the film web f. Is pressed against the lower side surface close to a predetermined interval.

The upper right reciprocating cylinder 33b, 34b
Moves the pressing member 33 and the attracting element 34 back and forth between a forward position where the side surface of the film f is pressed and a retreat position where the supply of the film f is allowed. The lower left moving cylinder 34c horizontally moves the adsorber 34 on the left side in the figure in a direction substantially parallel to the opening side edge of the film web f (or the bag body F).

The above-described adsorber 34 is connected to a negative pressure generator (not shown) such as an intake blower or a vacuum pump, for example. Hold the edge by suction.

As shown in FIGS. 2 and 4, the above-described pulling mechanism 40 has a pulling unit 43 attached to a support frame 41 erected on both sides of the separating mechanism 30 so as to be vertically movable. The belt 42 fixed to the belt 43 is rotated forward and reverse by a motor with a speed reducer (not shown), and a lowering position for holding the opening side edge of the film web f opened by the adsorber 34 and the opening side edge thereof. Opening unit 5 described later
3 to move up and down to the raised position.

The lifting arm 44 suspended from the lifting unit 43 is inserted into a space 47 formed between the holding member 33 and the attraction element 34, and the insertion body 45 suspended from the free end side of the lifting arm 44 is Is inserted into the center of the opening side of the film web f held by the pair of adsorbers 34.

Pressing bodies 46 attached to both sides of the insert 45
Is opened and closed by a pressing cylinder 46a fixed to the side to a closed position where the opening side edge of the film web f is pressed and an open position where the pressing is released. The gap between the pressing member 46 and the pressing body 46 is set to a distance at which the raw film f is allowed to be inserted. Further, as another elevating means instead of the belt 42, for example, a chain or a screw shaft, an air cylinder, or the like may be used.

As shown in FIGS. 5 and 6, the above-mentioned opening mechanism 50 separates the front opening unit 53 from the pulling-up mechanism 40 above the pull-up unit 40 by an interval allowing vertical movement of a folding unit 63 described later. The cantilever is attached to the front lower surface of the support frame 51 provided on both sides, and the rear opening unit 53 is attached to the lower surface both ends of the movable frame 51a provided on the rear lower surface of the support frame 51. It is hanging in.

In the front and rear opening units 53, the retracted position where the opening side front and rear edges of the film web f or the bag F pulled up by the pulling arm 44 are held, and the opening side front and rear edges are described later. It is relatively moved to the forward position (above the laying position c set on the conveyor 70) held by the folding unit 63.

On the other hand, a belt 52 stretched over a support frame 51 is fixed to a front opening unit 53, and the belt 52 is rotated forward and reverse by a motor with a speed reducer (not shown), so that a pair of front opening units 53 is It moves horizontally independently or in conjunction with the front and rear direction.

The movable frame 51a is attached to a rodless moving cylinder 55 provided on the upper side of the pulling side, and the pair of rear opening units 53 are horizontally moved in the front-rear direction.
The entire mechanism is adjusted up and down substantially corresponding to the size of the box B or the bag F.

The opening arm 54 vertically attached to the opening unit 53 is mounted inside the lifting arm 44, and a pair of holding bodies 56 mounted on the lower end of the arm are closed by a holding cylinder 56a mounted on the lower end. Mouth F of body F
The opening and closing movement is performed between a closed position for holding a and an open position where the holding is released.

The lifting / lowering cylinder 56b attached to the upper end of the arm moves up and down between a lowering position where the opening side edge of the bag body F pulled up by the lifting arm 44 is held and a raising position where the lifting operation is allowed. Is done. As another moving means instead of the air cylinder 55, for example, a solenoid, a chain, a screw shaft, or the like may be used.

As shown in FIG. 7, the loading mechanism 60 includes a folding unit 63 having a support frame 61 erected on the side of the conveyor 70 and a screw shaft 62 extending along the support frame 61. The screw shaft 62 is rotated forward and reverse by a motor equipped with a speed reducer (not shown) to stop the screw shaft 62 at a raised position where the opening operation of the opening mechanism 50 is allowed, and is vertically provided below the unit. By the folded members 64 at the four corners, the intermediate position where the opening Fa of the bag F opened by the opening arm 54 is held, and the descent where the opening Fa of the bag F is covered with the flaps Ba of the box B. Move up and down to the position.

As another elevating means in place of the screw shaft 62, for example, an air cylinder, a chain, a cam or the like may be used.

In addition, the claw-shaped folded body 65 is
The retracted state inserted into the mouth Ba of the bag body F by the expansion / contraction cylinder 63b fixed to 3a, and the mouth Fa, the
Are expanded and contracted so as to open to the size covered by the flaps Ba.

On the other hand, the extension body 65 suspended from the opposite side (or four sides) of the lower frame 63d and the pressing body 66 suspended from the center are moved by a lifting cylinder 63c fixed to the frame 63a. The body F is moved up and down in a direction of pressing the bottom of the body F against the bottom of the box B.

The expanded body 65 corresponds to the compressed state inserted into the box B and the bag F by the expansion / contraction cylinder 63e fixed to the frame 63d, and the bag F substantially corresponds to the inside of the box B. The pressing body 6 is expanded and contracted to an expanded state of expanding to a size.
6 presses the bottom of the bag F against the bottom of the box B. Also,
The folded body 64 and the expanded body 65 are adjusted to expand and contract substantially corresponding to the size of the box B.

As shown in FIGS. 8 and 9, the above-mentioned conveyor 70 stretches a plurality of feed belts 71 around the laying position c set on the conveying path and also has a motor with a speed reducer. (Not shown), they are synchronously rotated in the direction of transporting the box B. In addition, the stopper 72 disposed immediately before the start end of the rear feed belt 71 is moved up and down between a protruding state in contact with the front surface of the bottom of the box B and a immersing state immersed below the transport surface.

Feed belt 7 stretched on both sides of laying position c
3 is a moving means such as an air cylinder (not shown).
When the box B is moved back and forth between a forward position pressed against the side of the box B and a retracted position where the conveyance of the box B and the laying of the bag F are permitted, and pressed against the side of the box B, a motor with a reduction gear ( (Not shown), the box B is conveyed in the feed direction while rotating synchronously. As another example of the moving means, for example, a solenoid or a chain, a screw shaft, a cam, or the like may be used.

On the other hand, support members 74 provided on both front and rear sides are provided.
Is formed in a shape that substantially matches the outer surface of the corner of the box B,
The reciprocating cylinder 74b fixed to the side frame portions 74a causes the flaps Ba ... of the box B to move back and forth between a forward position in which the flaps Ba ... are supported substantially vertically and a retreat position in which the box B can be conveyed.

Further, the lifting and lowering cylinder 74d fixed to the lower frame portion 74c is moved up and down to a raised position for supporting the flap Bb of the box B and a lowered position below the flap Ba, so that the size of the box B is reduced. If it is large, the support 73 is lowered below the flap Ba of the box B. Further, as another transporting means instead of the transporting conveyor 70, for example, a roller conveyor, a chain conveyor, or the like may be used.

The elevators 75, 7 arranged below the laying position c
The box 6 is moved up and down substantially in accordance with the size of the box B by an elevating means (not shown) such as a screw shaft or an air cylinder.
It rises at 5, 76 and always stops the flap Ba of the box B at a constant height position.

The illustrated embodiment is configured as described above, and the laying operation of the bag body F by the bag laying apparatus 1 will be described below. First, as shown in FIGS. 1, 2 and 3, the supply mechanism 10 is driven to supply the raw film f to the seal mechanism 20 and the separation mechanism 30, and the separation unit 31 is rotated to the horizontal position. And a pair of holding members 33 and a pair of suction elements 3
After holding both edges on the opening side of the film raw material f with 4, the sealing mechanism 20 is driven to heat seal the film raw material f.

On the other hand, after the separation unit 31 is rotated in the upward position (or before the rotation), the pair of adsorbents 34 is displaced in the width direction to apply a contact resistance to a portion near the cut portion of the raw film f. After exfoliating the opening side opposing edge of the film raw material f, the pressing by the pair of pressing members 33 is released, the pair of adsorbers 34 are separated, and the film raw material f is pre-opened.

Next, as shown in FIG.
Is driven to lower the pair of pulling units 43 vertically, and the left and right pulling arms 44 hold the film source f. After the suction by the suction element 34 is released, the pair of pulling units 43 are vertically moved upward, and the left and right pulling arms 44 are moved.
Is supplied to the opening mechanism 50.

Next, the separating mechanism 30 is driven to cut the raw film f held by the pair of adsorbents 34 into a size substantially corresponding to the box B with the cutting blade 32 and to separate it into one bag F. I do.

Next, as shown in FIGS. 5 and 6, the opening mechanism 50 is driven to hold the mouth Fa of the bag body F with the opening arm 54 vertically attached to the front and rear opening units 53. Laying position c while separating the opening unit 53 of FIG.
It moves upward to open the mouth Fa of the bag F. During the opening operation, the pair of pulling units 43 are vertically moved downward, and the film web f held by the pair of adsorbers 34 is clamped.

On the other hand, after the box B supplied from the box making process (not shown) is transferred to the laying position c on the transfer conveyor 70, the box B is moved to the elevating table as shown in FIGS. The flap Ba of the box body B is lifted at 75 or 76, and stops rising when the flap Ba of the box body B is lifted to a predetermined height. At the same time, the support 74
Are pressed against the outer surfaces of the corners of the flaps Ba constituting the box B, and the side edges of the flaps Ba are supported in a state of contacting at substantially right angles.

Next, as shown in FIG.
To vertically lower the folded bodies 64 of the folding unit 63, and hold the opening Fa of the bag body F opened by the opening arms 54 by the folded bodies 64.

Thereafter, after the holding by the opening arm 54 is released, the front and rear opening units 53 are returned to the initial position by utilizing the time required for loading the bag body F by the loading mechanism 60. In addition, the front opening unit 53 is returned with the loading operation of the loading mechanism 60 being spaced at an allowable interval, and the original film f pulled up by the left and right pulling arms 44 is clamped.

On the other hand, the folding unit 63 is vertically lowered to insert the bag F into the inside of the box B, and the mouth Fa of the bag F is folded outward (for example, folded in two or folded in one). As shown in FIG. 10, FIG. 10 or FIG. At the same time, the support 74 returns to the initial position.

Further, the expansion body 65 is inserted into the mouth Fa of the bag F, and the bottom of the bag F is pressed against the bottom of the inside of the box B, and the size of the bag F is made substantially corresponding to the inside of the box B. Lay and set in the expanded state. The mouth Fa may be laid without being folded.

Next, after returning the folding unit 63 to the initial position, the box B on which the bags are laid is transported to the next step by the transport conveyor 70. Hereinafter, in the same manner as described above, the units 43, 53, and 63 are reciprocated to continuously lay the bag body F.

As described above, since the front left and right opening units 53 constituting the opening mechanism 50 reciprocate without obstructing the loading operation of the loading mechanism 60, it is possible to prevent the mechanisms 50 and 60 from interfering with each other. In addition to using the time required for loading the bag F by the loading mechanism 60, the film raw material f or the bag F supplied by the pulling mechanism 40 can be held and opened, and the entire apparatus can be held. The working time is greatly reduced, and labor saving and capacity improvement of the work can be achieved.

In addition, utilizing the time required for opening the opening Fa of the bag body F by the opening mechanism 50, preparation for supplying the next raw film f or bag body F to the opening mechanism 50 by the pulling mechanism 40. Since the work is performed, the opening unit 53
Can be immediately held and opened immediately upon returning to the holding position, and the operation of opening the bag F can be performed efficiently.

Further, the flaps Ba... Of the box B are supported by the support 74 in a state of standing substantially vertically, and the side edges of the flaps Ba. Is covered with the flaps Ba of the box B, the bag F is not caught on the flap Ba or caught between the flaps Ba, and is laid smoothly without damaging the bag F. Laying work can be performed mechanically.

Further, after covering the mouth portion Fa of the bag body F with the flaps Ba of the box body B, the box body B is lifted to a predetermined height by the lifting table 75 or 76, and the next step is carried out by the conveyor 70. Since the sheet is transported, the opening F of the thin bag F
a can be prevented from rising or rolling up due to wind pressure, and can be kept in a predetermined covering state.

In the correspondence between the configuration of the present invention and the above-described embodiment, the container of the present invention corresponds to the box B of the embodiment, and similarly, the bag supply means includes the supply mechanism 10 and the seal mechanism. 20, the separating mechanism 30, the lifting mechanism 40 and the lifting unit 43, and the lifting arm 44, and the bag opening means corresponds to the opening mechanism 50 and the opening unit 53, the opening arm 54, and the holder 56. The bag loading means includes a loading mechanism 60 and a folded body 64, an expanded body 65,
The moving means corresponds to the pressing body 66, the moving means corresponds to the belt 52, the moving cylinder 55, a chain or a screw shaft, a cam, a solenoid, and the like. The flap supporting means corresponds to the supporting body 74, and the box elevating means. Corresponds to the elevators 75 and 76, but the present invention is not limited to the configuration of the above-described embodiment.

The above-described cylinders 32a, 33b, 34b,
34c, 46a, 55, 56a, 56b, 63b, 63
For example, a solenoid, a motor, a screw shaft, a chain, a belt, or the like may be used as another driving means in place of c, 63e, 74b, and 74d.

[Brief description of the drawings]

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

FIG. 2 is a side view showing an opening operation of an opening mechanism and a transfer operation of a transfer conveyor.

FIG. 3 is a side view showing a sealing operation of a sealing mechanism and a separating operation of a separating mechanism.

FIG. 4 is a side view showing an operation of pulling a film raw material by a pulling mechanism.

FIG. 5 is a plan view showing the opening operation of the bag by the opening mechanism.

FIG. 6 is a side view showing the opening operation of the bag by the opening mechanism.

FIG. 7 is a side view showing the loading operation of the bag by the loading mechanism.

FIG. 8 is a plan view showing a state in which the box is transported by the transport conveyor.

FIG. 9 is a front view showing a state in which the flap of the box is supported by the support;

FIG. 10 is a side view showing an example in which the mouth of the bag is covered in a folded state.

FIG. 11 is a side view showing another example in which the mouth of the bag is covered in a folded state.

FIG. 12 is a plan view showing the opening operation of the bag by the conventional laying device.

[Explanation of symbols]

 f: raw film film F: bag body Fa: mouth B: box body Ba: flap 1: bag laying device 10: supply mechanism 20: sealing mechanism 30: separating mechanism 40: pulling mechanism 43: pulling unit 44: pulling arm 45 ... Expansion body 46 ... Pressing body 50 ... Opening mechanism 53 ... Opening unit 54 ... Opening arm 56 ... Holding body 60 ... Loading mechanism 63 ... Folding unit 64 ... Folding body 65 ... Expansion body 66 ... Pressing body 70 ... Transport conveyor 74 ... Support body

Continued on the front page (72) Inventor Kazuo Yasukawa 66 Takaoka-cho, Matsuyama-shi, Ehime Ishii Kogyo Co., Ltd. (72) Inventor Makoto Aoki 66 Takaoka-cho, Matsuyama-shi, Ehime Ishii Kogyo Co., Ltd. F-term (reference) 3E030 AA04 AA09 CA01 CA02 CA05 CB01 DA01 EA01 EB03 GA02 GA04 GA05

Claims (4)

[Claims] After opening a mouth of a bag having a predetermined size by a pair of left and right bag opening means, the bag is loaded into a container having an upper surface opened by a bag loading means. A bag laying device, wherein the pair of left and right bag opening means are provided at an interval at which the loading operation of the bag loading means is allowed, and each of the bag opening means holds a mouth of the bag body. 2. A bag laying apparatus according to claim 1, further comprising a moving means for moving between a holding position where the bag is to be loaded and a loading position where the bag is loaded into the container. 2. A bag laying device according to claim 1, further comprising a bag supply means for supplying a bag body in a state capable of being held by said bag opening means during said opening operation of said bag opening means at said holding position. 3. When the bag is loaded into a container, the flaps connected to the opening-side peripheral portion of the container are supported in a substantially vertically upright state, and the side edges of the flaps are brought into contact with each other. 2. The bag laying device according to claim 1, further comprising flap supporting means for supporting the bag in a contact state. 4. The container is supported at a predetermined height when the mouth of the bag is covered on each flap of the container by the bag loading means.
4. The bag laying device according to claim 1, further comprising a box elevating means for raising the container to a predetermined height when the mouth of the bag is covered with a flap of the container.