JPH0788077B2 - Sheet insertion device for opening case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a sheet for an opening case, such as a cardboard box, a paper box, or a wooden box, in which a resin bag-like sheet is inserted. Regarding the insertion device.

(B) Conventional technology Conventionally, for example, in order to store mechanical parts such as bolts and nuts in a corrugated cardboard box, in order to prevent these bolts and nuts from being rusted, oil or rust preventive oil such as grease is used for the above bolts, Apply a small amount on the nut surface.

In order to prevent the cardboard box from being softened by such oil and grease from the bolts and nuts, it is necessary to insert a synthetic resin sheet such as polyethylene or vinyl chloride into the cardboard box.

When powder such as soap powder is stored in the cardboard box described above, a synthetic resin sheet is inserted into the box in the same manner as described above to prevent such powder from spilling out of the box. There is a need.

In view of such a need, the present applicant has already filed Japanese Utility Model Application No. 61-
Invented the sheet insertion device described in Japanese Patent Application No. 95107 and Japanese Patent Application No. 61-179414.

The device described in Japanese Utility Model Application No. 61-95107 has a single sheet winding section for winding a long bag-shaped sheet, and opens the bag-shaped sheet fed from this sheet winding section. It is a device that inserts a sheet insertion frame from above the opened bag-shaped sheet by cutting and suction opening the fixed receiving portion located above the case and the cutting opening, and inserting the bag-shaped sheet into the opening case. Since the bag-shaped sheet is wound around the single winding portion, the upper and lower two sheets forming the bag are in close contact with each other, and there is a problem that the suction resistance becomes large at the suction opening.

The device described in the latter Japanese Patent Application No. 61-179414 holds the front end of the bag-shaped sheet on the side of the opening case by an adsorption means and holds the bag-shaped sheet by blowing air from the side of the non-holding case as the non-holding portion. Although it is a device that closely adheres to the inside of the opening case, since the opening area of the bag-shaped sheet is substantially the same as the area of the opening of the opening case, the blown air bounces off the sheet and satisfactorily forms the bag-shaped sheet. In some cases, it was not possible to make it fit inside the case.

(C) Object of the invention The invention according to claim 1 of the present invention has a small suction resistance at the time of the suction opening, can smoothly open the bag-shaped sheet, and has an opening area for air blowing. The bag-shaped sheet can be swelled in the opening case as if it is small so that the balloon can be inflated so that the bag-shaped sheet can be closely adhered to the opening case. An object of the present invention is to provide a sheet insertion device for an opening case, which can surely perform a series of processes for sealing an opening portion and can also improve the storability of components placed in a sheet.

The invention according to claim 2 of the present invention, together with the object of the invention according to claim 1 described above, provides an opening case capable of surely performing a series of processes including sheet insertion, sheet contact, component insertion, and opening sealing. The purpose of the present invention is to provide a sheet insertion device.

The invention according to claim 3 of the present invention, together with the object of the invention according to claim 2, provides a device for inserting a sheet into an opening case, which can improve the storability of components placed in a seat. With the goal.

(D) Structure of the Invention The invention according to claim 1 of the present invention comprises a sheet winding part for separately winding two long strip-shaped sheets, and a sheet fed from each of the sheet winding parts, Heat sealing means for forming a bag shape by welding the other part in a square annular shape in a partially non-welded state, sheet feeding means for conveying the heat sealed bag-shaped sheet into the opening case, and a position at the tip of the sheet feeding means. Then, the fixed receiving portion for adsorbing and holding the sheet from the sheet feeding means, and the contact with and separating from the fixed receiving portion, the sheet is cut, and the bag-shaped sheet after cutting is adsorbed and the non-welding portion is opened. An opening and a duct that is removably inserted into the opening of the bag-shaped sheet are provided, and the runner that runs along the conveying path of the opening case is arranged at the next stage of the sheet insertion section, and through the duct. Blow air into the bag-shaped sheet inside the opening case to Is a device for inserting a sheet into an opening case, the device being provided with an air blowing means for bringing the sheet into the opening case.

The invention according to claim 2 of the present invention, together with the configuration of the invention according to claim 1, is arranged in a stage next to the air blowing means, and is formed into a bag-like sheet in the opening case through the duct. An apparatus for inserting a sheet into an opening case, comprising: an article loading means for loading an article; and an opening sealing means disposed downstream of the article loading means and thermally sealing the opening of the bag-shaped sheet after loading the article. It is characterized by being.

The invention according to claim 3 of the present invention is, in addition to the configuration of the invention according to claim 2, an opening provided with a suction means for vacuum-sucking air from the inside of the bag-shaped sheet after the article is inserted through a duct. It is a sheet insertion device into a case.

(E) Effect of the Invention According to the invention of claim 1 of the present invention, since the winding portion for separately winding the two long strip-shaped sheets is provided, the strip-like shape fed from each winding portion is provided. An air layer is inevitably formed between the sheets, and it is possible to reduce the suction resistance at the time of opening the bag with the fixed receiving portion and the cutting opening after the heat sealing by the heat sealing means. In addition, the cutting and opening can be performed in a series of steps to shorten the processing time, and as a result, the bag-shaped sheet can be cut and opened smoothly.

Further, in the above-mentioned heat sealing means, the sheet in which the above-mentioned sheet winding portions are fed out is partially in the non-welded state and the other portion is welded in the shape of a square ring to form a bag. When the sheet is conveyed to the next stage and the bag-shaped sheet is opened by both the fixed receiving portion and the cutting opening portion, only the above-mentioned non-welded state portion is opened, and this opening area becomes small. When the air is blown into the bag-like sheet by inserting the duct of the runner into the bag-like sheet, the air does not bounce and the above-mentioned bag-like sheet is expanded in the opening case so as to inflate the balloon. There is an effect that it can be swollen and the bag-shaped sheet can be brought into close contact with the inner surface of the case.

Moreover, since the duct described above accompanies the transportation of the case by the runner, by using this duct as a duct for blowing air, continuous processing can be smoothly performed along the transportation of the case and the storage workability can be improved. You can

According to the invention of claim 2 of this invention,
In addition to the effects of the described invention, in the next stage of the air blowing means,
An opening part seal for arranging a part loading means for loading an article into the bag-shaped sheet in the opening case through the duct and heat-sealing the opening part of the bag-shaped sheet after the article loading is provided at the subsequent stage of the article loading means. Since the means is provided, there is an effect that a series of processes of inserting the sheet into the opening case, adhering the sheet to the inner surface of the opening case, inserting the article into the sheet, and sealing the opening portion of the sheet can be continuously and reliably performed. is there.

According to invention of Claim 3 of this invention, said Claim 2
In addition to the effect of the invention described, since the suction means for vacuum sucking air from the inside of the bag-shaped sheet after the article is inserted through the duct is provided, it is possible to remove air, especially oxygen in the bag-shaped sheet. , Oxidation of articles stored in the seat,
It is possible to prevent corrosion as much as possible, and it is possible to improve the storability of the articles put in the sheet.

In addition, since the duct described above accompanies the transportation of the case by the runner, by using this duct as a shooter for loading the articles and a duct for vacuum suction, continuous processing along the transportation of the case can be facilitated. There is an effect that it can be achieved and the storage workability can be improved.

(C) Embodiment One embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show an automatic sheet inserting device, and in FIGS. 1 and 2, a conveyor device 2 and a main body housing 3 of the inserting device are mounted on a base 1.

The above-mentioned conveyor device 2 includes a plurality of horizontal transport rollers 4 arranged in a row, and an endless transport belt 5.
And a motor (not shown) as a drive source, and the cardboard box 8 guided by the left and right guides 6, 7 is configured to be tact-transported in the direction of arrow a in FIG.

As shown in FIG. 2, original rolls 11 and 12 are attached to the lower rear part of the main body housing 3 via roll holders 9 and 10, respectively.

Each of the above-mentioned original rolls 11 and 12 is obtained by separately winding, for example, a perfect continuous strip-shaped (non-bag-shaped) long sheet A having no perforations A and A around the respective cores 13 and 14. In this embodiment, polyethylene sheets are used as the above-mentioned sheets A and A.

The above-mentioned strip-shaped sheets A, A of the original rolls 11, 12 are guided by the sheet feeding device 15 to above the cardboard box 8 at the sheet insertion position W shown in FIG.

As shown in the figure, the sheet feeding device 15 is composed of guide rollers 16, 17, 18, opposing rollers 19, 19 and a drive motor (not shown).

Needless to say, a tension roller may be provided at a necessary position in order to apply tension to the sheets A and A.

A seal for heat-sealing the upper and lower sheets A, A fed from the original rolls 11, 12 by the sheet feeding device 15 between the guide roller 18 and the rollers 19, 19 on the upper surface of the main body housing 3 described above. The device 20 is arranged so as to be vertically movable.

The sealing device 20 is a device for heat-sealing the upper and lower sheets A, A as shown in FIG.

That is, when the sheet A is conveyed in the direction of arrow b in the figure, the corner portion on the feed end side is left as the non-welded portion C, and the other portion is formed as the square annular continuous welded portion d.
As shown by hatching in the figure, the upper and lower sheets A, A are heat-welded to form a bag.

The lower end of the sheet feeding device 15 described above, that is, the opposing roller 1
A fixed receiving portion 21 and a cutting opening portion 23 that is brought into contact with and separated from the fixed receiving portion 21 by a first air cylinder 22 are provided in the lower portion of the sheet feeding side of 9,19.

The specific structure of the fixed receiving portion 21 and the cutting opening portion 23 described above,
This is as shown in FIGS. 4 to 6.

That is, the fixed receiving portion 21 has a recess 25 formed in the upper portion of the heat insulating holder 24 facing the sheet, and the clamp plate 26 for holding the sheet is attached to the seat facing surface of the lower portion of the recess 25, and the lower surface of the heat insulating holder 24 described above. A vacuum member 27 is disposed in the vacuum member 27, suction holes 28 are formed in the sheet facing surface of the vacuum member 27, and a vacuum suction device (not shown) is connected to a conduit 29 communicating with the inside of the vacuum member 27. I am letting you.

Further, in the above-mentioned cutting opening 23, a heat wire 31 for cutting the sheet A is projectingly formed on the upper part of the sheet facing surface of the heat insulating holder 30, and a sheet holding clamp plate is provided on the sheet facing surface under the heat wire 31.
In addition to mounting 32, a vacuum member 33 is provided on the lower surface of the heat insulation holder 30 described above, a suction hole 34 is formed in the surface of the vacuum member 33 facing the sheet, and a conduit communicating with the inside of the vacuum member 33. The above-mentioned vacuum suction device (not shown) is connected to 35.

A piston rod 36 of the first air cylinder 22 shown in FIG. 2 is connected to the above-mentioned cutting opening 23 so that the saw cutting opening 23 can be brought into contact with and separated from the fixed receiving portion 21. .

In the state shown in FIG. 4, the heat wire 31 is energized to
31 is heated, and the cutting opening 23 is driven by driving the first air cylinder 22.
As shown in FIG. 5, when the bag-like sheet A is melted and cut by the above-mentioned heating wire 31 when it is opposed to the fixed receiving portion 21, the bag-like sheet A below the cutting portion is clamped by the clamp plates 26 and 32 to be opposed. Retained.

By the suction action of the vacuum suction device (not shown), the suction force indicated by the arrow e in FIG. 5 is exerted on the vacuum members 27 and 33, and in this state, the cutting opening is driven based on the drive of the first air cylinder 22 described above.
When 23 is separated from the fixed receiving portion 21 as shown in FIG. 6, one of the cut bag-like sheets A is in the suction hole 28 and the other is in the suction hole 28.
Since the upper ends of the bags separate from each other while being sucked and held by 34, the bag-like sheet A is subjected to opening processing at the portion corresponding to the non-welded portion C shown in FIG.

By the way, as shown in FIG. 1 and FIG.
1. Above the cardboard box 8 in FIG. 1, it moves downward from the standby position shown by the phantom line α in FIG. 1 as shown by the solid line in FIG. 6 so that it can be inserted into and removed from the upper end opening B of the bag-like sheet A in FIG. A runner 38 having a duct 37 to be inserted is provided.

This runner 38 is a runner driving device (FIGS. 11 and 12) described later.
(See the drawing), the cardboard box 8 travels along the transport path 39 in synchronization with the cardboard box 8.

At the air feeding position X in the next stage of the sheet insertion position W shown in FIG. 1, the cardboard box 8 is inserted through the duct 37 of the runner 38.
The air in the bag-shaped sheet A inside is blown into the bag-shaped sheet A
A blower 40 is provided to bring the above into close contact with the inside of the cardboard box 8.

A second air cylinder 44 that connects a cylindrical rubber rubber 43 to the tip of the blower opening 41 of the blower 40 via a bellows-shaped expansion tube 42 and operates the rubber rubber 43 to move toward and away from the runner 38.
When the above-mentioned runner 38 reaches a predetermined position, the second air cylinder 44 is driven to control the expansion and contraction of the expansion tube 42 to bring the rubber rubber 43 into close contact with the upper surface of the runner 38. It is configured to be driven to send air under pressure into the bag-like sheet A through the duct 37 inserted into the upper end opening B as shown in FIG.

A hopper 45 for loading an article D (see FIG. 8) into the bag-shaped sheet A in the cardboard box 8 through the duct 37 of the runner 38 is arranged at the article loading position Y in the next stage of the air pressure feeding position X described above. I have set up.

Then, the opening diameter of the lower end inlet 46 of this hopper 45 is set to the duct.
The diameter is set to be equal to or smaller than the diameter of the upper end opening 37a of the 37, and when the above-mentioned runner 38 reaches a predetermined position, the shutter (not shown) in the hopper 45 is opened and the above-mentioned as shown in FIG. The article D is introduced into the bag-like sheet A through the duct 37 of FIG.

At the vacuum suction and heat sealing position Z in the next stage of the article loading position Y, the bag-shaped sheet A after the article D is loaded.
A vacuum suction device 47 for vacuum-sucking air from inside the chamber via the duct 37, and an opening sealing device 48 for heat-sealing the opening B of the bag-like sheet A immediately after the duct 37 is detached (9th embodiment).
(See FIG. 10).

Here, a cylindrical rubber rubber 51 is communicated with the tip of the intake port 49 of the vacuum suction device 47 through a bellows-shaped expandable tube 50, and the rubber rubber 51 is brought into contact with and separated from the runner 38.
An air cylinder 52 is provided, and when the above-mentioned runner 38 reaches a predetermined position, the expansion and contraction of the expansion tube 50 is controlled by the drive of the above-mentioned third air cylinder 52 to bring the rubber rubber 51 into close contact with the upper surface of the runner 38. The bag-like sheet A is driven by driving the suction device 47 through the duct 37 inserted into the upper end opening B as shown in FIG.
It is configured to suck the air inside by vacuum.

As shown in FIGS. 9 and 10, the above-mentioned opening seal device 48 has a pair of legs 53, 53 that open and close with a pivot shaft (not shown) above the runner 38 as a fulcrum, and seal plates 54, 53 at the lower end facing parts. 54 is installed and the duct 37 shown by the solid line in FIGS. 1 and 9 is the runner.
When 38 moves up to the disengagement position shown by the phantom line β in FIGS. 1 and 10, the left and right seal plates 54, 54 come close to each other by the operation of the actuator (not shown), and the bag-shaped sheet A The upper end opening B is heat-sealed.

Incidentally, 55, 56, 57 and 58 in FIG. 1 are clampers for holding the bag-like sheet A at a fixed position, and these clampers 55 to 58 are each.
May be attached to the tips of the piston rods of, for example, the fluid cylinders that are arranged to face each other.

By the way, the runner drive device 59 for driving the above-mentioned runner 38 is constructed as shown in FIG.

That is, a C-shaped sub rail 62 in a plan view is arranged above both ends of a linear main rail 61 having a traveling guide groove 60 of the duct 37, and a traveling guide groove 63 of the duct 37 is formed in the sub rail 62. ing.

Further, both end portions of the above-mentioned sub rail 62 communicate with the running guide groove 63 and also receive grooves 64, 65 which allow the vertical movement of the runner 38.
On the other hand, at the end of the main rail 61 on the feed rear end side,
An elevating member 67 that reciprocates up and down between the main rail 61 and the sub rail 62 by a cylinder 66 is provided.

Further, racks 68 are formed on both side surfaces of the runner 38 described above, and a plurality of pinions (not shown) that mesh with the rack 68 described above are arranged at necessary positions of the main rail 61 and the sub rail 62. Runs through rack 68 by rotation
38 is configured to be conveyed in the direction of arrow f in FIG.

Here, the runner 38 inherited from the inheritance groove 64 on the feed start end side at the end of the sub rail 62 to the main rail 61 is the main rail 61.
While the upper part of the cylinder 66 is being conveyed in synchronization with the corrugated cardboard box 8, it reaches the position where the elevating member 67 is disposed, and at this position, the cylinder 66 described above is reached.
Is driven, the runner 38 is inherited from the main rail 61 to the sub rail 62 by the lifting member 67, and the runner 38 inherited by the sub rail 62 travels on the rail 62 in the direction of arrow g.

Instead of the above-described runner drive device 59, a trolley conveyor type runner drive device 69 as shown in FIG. 12 may be used to drive the runner 38.

The runner drive device 69 shown in FIG. 12 is such that the runner 38 is fixed horizontally to the lower surface of the holder 72 holding a pair of rollers 71, 71 traveling along the rail 70 via a plunge 74 of a solenoid 73, The slide rod 76 on the runner 38 side is inserted into the cylindrical shaft 75 provided on the lower surface of the holder 72, and the runner 38 is caused to travel along the rail 70 by the drive of the drive device 77, and the solenoid 73 is energized at a required position. Then runner 38 and duct
37 is configured so as to control downward movement as shown by a virtual line in FIG.

The illustrated embodiment is configured as described above, and the operation will be described below.

First, as shown in FIG. 1 and FIG.
Upper-opening cardboard box 8 with both inner and outer flaps standing upright
Is conveyed to the bag-shaped sheet insertion position W, and the cardboard box 8 is positioned and stopped at a predetermined position.

Next, with the sheet feeding device 15 shown in FIG.
After feeding the strip-shaped sheets A, A wound around 2 by a predetermined amount, the sealing device 20 is driven to heat-seal the upper and lower two sheets A, A while leaving a part thereof as shown in FIG. , A bag-shaped sheet A.

Further, by driving the above-mentioned sheet feeding device 15, the bag-shaped sheet A is inserted into the cardboard box 8 as shown in FIG.

Next, the heating wire 31 shown in FIG. 4 is energized, and the cutting opening 23 separated from the fixed receiving portion 21 is provided to the fixed receiving portion 21 by the first air cylinder 22.

When the cutting opening 23 is provided so as to face the fixed receiving portion 21 in this way, as shown in FIG. 5, the bag-like sheet A between the two portions 21 and 23 is melt-cut by the heating wire 33.

Further, the bag-shaped sheet A located below the above-mentioned cutting point in the drawing is held by the clamp plates 26 and 32 which are arranged opposite to each other.

Next, the bag-like sheet A is attracted to the vacuum members 27 and 33 by driving a vacuum suction device (not shown).

While holding this suction state, the piston rod 36 of the first air cylinder 22 is moved back to fix the cutting opening 23 to the fixed receiving portion 21.
When the bag-shaped sheet A is cut away from the bag, the rim of the upper end of the bag corresponding to the non-welded part C (see FIG. 3) is opened to a relatively small opening area as shown in FIG.

Next, the runner 38 at the solid line position in FIG. 6 and the standby position α shown in phantom line in FIG. 1 is moved downward to move the duct 37 to the upper end opening B of the bag-like sheet A as shown in solid line in FIG. To insert.

Next, by operating the conveyor device 2 and the runner drive device 59 synchronized with the device 2, the cardboard box 8 and the runner 38 are first moved.
The tact is conveyed to the air pressure feeding position X in the figure and stopped at the same position X.

At the air pressure feeding position X, the second air cylinder 44 is operated to control the expansion of the expansion tube 42, and the rubber rubber 43 is moved to the runner 38.
The blower 40 is driven after being brought into close contact with the upper surface.

When the blower 40 is driven, air is blown into the bag-like sheet A through the expansion tube 42, the rubber rubber 43, and the duct 37, so that the bag-like sheet A swells so as to inflate the balloon, and As shown in the figure, it adheres well to the inner surface of the cardboard box 8.

Next, the conveyor device 2 and the runner driving device 59 are re-driven to tact the cardboard box 8 and the runner 38 from the air pressure feeding position X to the article loading position Y and stop at the same position Y.

At the article loading position Y, a shutter (not shown) in the hopper 45 is opened / closed.

When the above-mentioned shutter is controlled to be opened, the articles D in the hopper 45 are put into the bag-shaped sheet A in a fixed amount from the loading port 46 at the lower end of the hopper 45 through the duct 37 as shown in FIG.

Next, the conveyor device 2 and the runner driving device 59 are re-driven to tact the corrugated board box 8 and the runner 38 from the above-mentioned article loading position Y to the vacuum suction and heat sealing position Z and stop at the same position Z.

At the above-mentioned position Z, first, the third air cylinder 52 is operated,
The expansion / contraction tube 50 is controlled to extend, the rubber rubber 51 is brought into close contact with the upper surface of the runner 38, and then the vacuum suction device 47 is driven.

When the vacuum suction device 47 is driven, the air in the bag-shaped sheet A is vacuum-sucked through the duct 37, the rubber rubber 51, and the expansion tube 50 as shown in FIG.

After the above-mentioned vacuum suction processing, the runner 38 is moved upward from the solid line position in FIG. 1 to the disengaged position shown by a virtual line β in FIG. The upper end opening B of the toe A.

When the duct 37 moves upward, the pair of seal plates 54, 54 shown in FIG. 9 are operated in proximity to each other as shown in FIG. 10 to heat seal the upper end opening B of the bag-like sheet A.

In addition, the cardboard box 8 after the heat sealing is completed is the conveyor device 2
While being conveyed to the next process by the tact conveyance of (1), the runner 38 is return-conveyed along the sub rail 62 shown in FIG. 11, for example.

In short, since the original fabric rolls 11 and 12 for separately winding the two long bag-shaped sheets A and A are provided, the belt-like sheets A and A fed from the respective original fabric rolls 11 and 12 are mutually Second between
As shown in the figure, a layer of air is inevitably formed, and after the heat sealing by the sealing device 20, the suction resistance at the time of opening the bag with the fixed receiving portion 21 and the cutting opening portion 23 is reduced. As a result, the opening process of the bag-shaped sheet A can be smoothly performed.

Further, in the above-described sealing device 20, each of the above-mentioned original rolls 1
As shown in FIG. 3, the sheet A fed from 1,12 is
Since the other part is welded in a square ring shape in a non-welded state to form a bag-like shape, the bag-shaped sheet A after sealing is conveyed to the next stage by the sheet feeding device 15, and the fixed receiving part 21 and the cutting opening part 23 are conveyed. When the bag-shaped sheet A is subjected to the opening treatment by both of the above and the above, only the portion corresponding to the non-welded portion C is opened, and the opening area becomes small,
When the duct 37 of the runner 38 is inserted into this opening B (see FIG. 6) and the air is blown into the bag-like sheet A by the blower 40, this air will not bounce and the balloon will be inflated. The bag-shaped sheet A can be bulged in the cardboard box 8 and the bag-shaped sheet A can be satisfactorily used in the case 8
There is an effect that it can be adhered to the inner surface.

Further, as shown in the embodiment, the article D is provided on the bag-like sheet A in the corrugated cardboard box 8 through the duct 37 at the next stage of the blower 40.
When the hopper 45 for charging the container is arranged, and the opening sealing device 48 for thermally sealing the opening B of the bag-like sheet A after the goods are arranged is arranged at the subsequent stage of the hopper 45, the cardboard box 8
Sheet A into the cardboard box, the sheet adheres to the inner surface of the cardboard box 8,
There is an effect that it is possible to continuously and surely perform a series of processes of putting an article into the bag-shaped sheet A and heat-sealing the opening B of the bag-shaped sheet A.

Furthermore, as shown in the embodiment, by providing a vacuum suction device 47 for sucking air from the inside of the bag-shaped sheet A after loading the article through the duct 37, oxygen in the bag-shaped sheet A, especially oxygen, is removed. Therefore, the articles D stored in the bag-shaped sheet A can be prevented from being oxidized or corroded as much as possible, and the preservability of the articles D placed in the sheet can be improved. Since it is effective, it is also effective when this automatic sheet inserting device is used in the food industry sector.

In the correspondence between the configuration of the present invention and the above-described embodiment, the sheet winding portion of the present invention is the original rolls 11 and 12 of the embodiment.
Similarly, the heat sealing means corresponds to the sealing device 20, the opening case corresponds to the cardboard box 8, the sheet feeding means corresponds to the sheet feeding device 15, and the air blowing means corresponds to Corresponding to the blower 40, the article inputting means corresponds to the hopper 45, the opening sealing means corresponds to the opening sealing device 48, the suction means corresponds to the vacuum suction device 47, the sheet insertion portion corresponds to the sheet. Although it corresponds to the insertion position W, the present invention is not limited to the configuration of the above-described embodiment.

For example, an air compressor may be used instead of the blower 40 described above.

Further, as the opening case, a paper box, a wooden box, or the like can be used in addition to the cardboard box 8 described above.

Further, instead of the melting and cutting with the heating wire 31, a cutting means such as a cutter such as a cutter may be used.

Further, in addition to the air cylinders 22, 44, 52, it is needless to say that a solenoid may be used when the fluid cylinder such as a hydraulic cylinder or the reciprocating stroke is small.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a side view of an automatic sheet inserting device, FIG. Explanatory drawing, FIG. 4 is a sectional view showing the step of inserting the bag-shaped sheet into the cardboard box, FIG. 5 is a sectional view showing the step of cutting the bag-shaped sheet, and FIG. 6 is a step of opening the bag-shaped sheet. Sectional drawing, FIG. 7 is a sectional view showing an air pressure feeding step into the bag-shaped sheet, FIG. 8 is a sectional view showing an article loading step into the bag-shaped sheet, and FIG. 9 is air suction in the bag-shaped sheet. Sectional views showing the steps, FIG. 10 is a sectional view showing the heat sealing step of the upper end opening, FIG. 11 is a schematic perspective view of the runner driving device, and FIG. 12 is an explanatory view showing another embodiment of the runner driving device. Is. 8 ... Cardboard box 11, 12 ... Original roll 15 ... Sheet feeding device, 20 ... Sealing device 21 ... Fixed receiving part, 23 ... Cutting opening 37 ... Duct, 38 ... Runner 39 ... Conveying path, 40 ... Blower 45 ... Hopper , 47 ... Vacuum suction device 48 ... Opening sealing device A ... Sheet, B ... Opening C ... Non-welded part, D ... Article W ... Sheet insertion position

Claims (3)

[Claims] 1. A sheet winding section (11) (12) for separately winding two long strip-shaped sheets (A) (A), and the sheet winding sections (11) (12). A heat-sealing means (20) for forming a bag shape by welding the fed-out sheets (A) and (A) in a non-welded state to the other portion in a square ring shape, and a heat-sealed bag-shaped sheet (A). A sheet feeding means (15) that conveys the sheet (A) from the sheet feeding means (15) to the inside of the opening case (8) and that is located at the tip of the sheet feeding means (15). ) And the fixed receiving portion (21) to contact and separate to cut the sheet (A) and to adsorb the cut bag-shaped sheet (A) to open the non-welded portion (C). (23) and a duct (37) that is removably inserted into the opening (B) of the bag-shaped sheet (A), and travels along the conveyance path of the opening case (8). Of the bag-like sheet (A) in the opening case (8) through the duct (37). An apparatus for inserting a sheet into an opening case, comprising: an air blowing means (40) for closely contacting the inside of the opening case (8). 2. The article (D) is placed in the bag-like sheet (A) in the opening case (8) through the duct (37), which is disposed at the next stage of the air blowing means (40). An article loading means (45) and an opening sealing means (48) arranged at a subsequent stage of the article loading means (45) for heat-sealing the opening of the bag-like sheet (A) after the article loading. The sheet insertion device into the opening case according to claim 1. 3. The opening case according to claim 2, further comprising suction means (47) for vacuum-sucking air from the inside of the bag-shaped sheet (A) after loading the article through the duct (37). Sheet insertion device.