JP6978786B2 - Self-supporting bag packaging device - Google Patents

Description

The present invention relates to a self-supporting bag packaging device capable of reliably expanding the double-formed bottom of a self-standing bag laminated with metal foil as a packaging material and automatically packing the bag.

Conventionally, a two-way seal bag that heat-seals the bottom and the opening, a self-standing bag that has a double bottom, a chuck bag that chucks the opening, and other packaging bags with uneven or bulky surface shapes. There is known a packaging bag feeding device in which the bags are separated one by one by a belt and fed out (see Patent Document 1).

In this known technique, the packaging bag fed on the feed belt first comes into contact with the fast-forward belt that rotates at a peripheral speed faster than the feed speed of the feed belt, and is fast-forwarded due to frictional resistance and passes under the driven shaft. It is a packaging bag feeding device that is subsequently fed by the claws of a similarly rotating claw wheel, stopped by a stopper, and positioned.
Similar publicly known techniques include Japanese Patent Application Laid-Open No. 2000-168729, Japanese Patent No. 40235333, Japanese Patent No. 3639199, and the like.

In addition, as another known technique, there is a bagging packaging device that can detect in advance bagging defects by a bag opening holder that supplies fillings to a packaging bag without being separated by the air pressure blown from the bag mouth. It is known (see Patent Document 2).

In this known technique, the bag mouth is pre-opened by a weak wind blown from an air nozzle to the tip of the bag opening holder, and the bag mouth holding tongue piece is rotated to rotate the bag mouth holding tongue piece and the bag of the suction holder. When the upper surface side of the bag mouth of the packaging bag is sandwiched by the presser seat and the carry-out table advances to the forward end in this state, the bag opening holder is inserted from the bag mouth of the packaging bag as much as necessary and from the air nozzle. This is a bagging and packaging device in which the entire packaging bag is opened by the air in a strong wind condition.

However, in the case of the bag opening technique using the blast pressure, it is not possible to reliably open the entire packaging bag, that is, the double-formed bottom portion of the self-standing bag having the double-formed bottom portion by the strong wind air from the air nozzle. In addition to preventing this problem, a magazine tray will be introduced as a bag feeding device to improve the self-supporting bag with a double bottom so that it can be reliably fed out one by one.

Utility Model Registration No. 2603186 Gazette Utility Model Registration No. 3185544 Gazette

In the present invention, a magazine tray is introduced as a bag feeding device so that self-supporting bags having a double-bottomed bottom can be reliably fed and supplied one by one, and the bottom of the self-supporting bag can be reliably supplied by a jet nozzle that moves up and down. It is an object of the present invention to provide a self-supporting bag packaging device that can be expanded.

In the self-supporting bag packaging device of the present invention, a large number of movable bag opening holders mounted on a reciprocating moving table that is conveyed at equal intervals by a chain conveyor and moves in a direction orthogonal to the traveling direction, and a bag opening holder together with the reciprocating moving table. A carry-in device equipped with an extrusion pusher that pushes the packaged object placed on the bag to the opening bag position.
An angle position adjustable fixed jet nozzle device that blows jet air diagonally toward the opening auxiliary tongue piece of the bag opening holder in conjunction with the advancement of the bag opening holder to the opening bag position , and the jet. A blower injection device that lowers the nozzle device in conjunction with the advancement of the bag opening holder to blow the jet air diagonally and then raises it, and an opening in the center of the bottom surface of the magazine tray where the belt conveyor is exposed are formed. as can be supplied one by one reliably self-standing bag, an opening in the front, and a bottom portion formed on the double backwards, the bag feeders which are arranged in tandem laminated to the magazine tray domino-like, the self-standing bag from fed-bag unit and one suction, a suction device having a suction holder for lateral conveyance lifted the bag opening position, and one adsorbing self-standing bag from the adsorber by Ri the paper bag device, A printing device that prints the date of manufacture, etc. on the bottom of the self-standing bag during lifting and lateral transportation,
It comprises a carry-out device that releases the adsorption of a self-standing bag filled with an object to be packaged by an extrusion pusher at the bag opening position and puts it on a carry-out belt conveyor to carry it out.

The blower injection device of the self-standing bag packaging device of the present invention has a reciprocating rod that reciprocates up and down, a mounting frame attached to the tip of the reciprocating rod, and a jet that is fixed to the mounting frame so that the angle position can be adjusted. It consists of a nozzle device, and the jet nozzle device is lowered in conjunction with the advancement of the bag opening holder to the opening bag position, and the instantaneous jet air is blown diagonally toward the opening assisting tongue piece of the bag opening holder to assist the opening. The jet air that hits the tongue piece is blown toward the bottom of the self-supporting bag to open the entire self-supporting bag, and then rises. The entire bag, that is, the double-formed bottom can be reliably expanded , and when the packaged object is filled, it retracts upward so that it does not get in the way.
The magazine tray of the self-supporting bag packaging device of the present invention has a bottom surface having a width substantially equal to that of the self-standing bag, and the belt conveyor is exposed at the center of the bottom surface so that the belt conveyor spanned by the drive shaft and the driven shaft is exposed. An opening is formed so as to surround the conveyor belt, and the bottom surface is extended forward to be formed so as to project from the belt conveyor. In addition, the double-formed bottoms can be arranged in a row in a row behind the dominoes, and can be placed on a conveyor belt simply by replacing the magazine tray, making it easy to refill and change the size of self-supporting bags. It can be carried out.

It is a front view of the self-supporting bag packaging apparatus of this invention. It is a partially omitted enlarged perspective view of the self-supporting bag packaging apparatus of this invention. It is a partially omitted enlarged front view of the self-supporting bag packaging apparatus of this invention. It is a partially omitted enlarged plan view of the self-supporting bag packaging apparatus of this invention. It is a partially omitted front view of the self-supporting bag packaging apparatus of this invention. It is an enlarged perspective view of a magazine tray.

An embodiment of the self-supporting bag packaging device of the present invention will be described below with reference to the accompanying drawings.
As shown in the front view of FIG. 1, the self-supporting bag packaging device of the present invention is an extrusion pusher (not shown) that is conveyed by a chain conveyor 1 and extrudes an object to be packaged placed on a bag opening holder 2 to an opening bag position. The carry-in device 3 equipped with the above, the blower injection device 5 that reciprocates the jet nozzle device 4 that injects strong wind in conjunction with the advancement of the bag opening holder 2 to the opening bag position, and the opening of the opening in the forward direction. From the bag feeding device 7 and the bag feeding device 7 that can reliably supply the self-supporting bags that are arranged in a vertical stack on the magazine tray 6 diagonally diagonally with the bottom that is heavily formed rearward. A suction device 9 equipped with a suction holder 8 that sucks one self-supporting bag and transports it to the bag opening position, and a printing device 10 that prints the date of manufacture or the like on the lower part of the self-supporting bag during transportation by the suction device 9. It is composed of a carry-out device 12 for carrying out a self-supporting bag filled with an object to be packaged by an extrusion pusher (not shown) at a bag opening position by a carry-out belt conveyor 11.
Reference numeral 13 is a machine frame, 14 is a base, and 15 is an electronic control device.

As shown in a partially enlarged perspective view of FIG. 2, the carry-in device 3 is a bag opening holder mounted on a reciprocating moving table 16 which is conveyed by a chain conveyor 1 and moves in a direction orthogonal to the traveling direction of the chain conveyor 1. 2 and an extrusion pusher 17 for pushing out the object to be packaged on the bag opening holder 2 to the opening bag position.
The bag opening holder 2 is provided with side guides 18 for preventing falling off on both sides, an opening assisting tongue piece 19 at the tip, and a tray with an open rear end.
The extrusion pusher 17 includes an inverted L-shaped extrusion piece 20 for preventing the packaged object placed on the bag opening holder 2 from collapsing and extruding while adjusting the shape.
In the case of a single packaged object, the inverted L-shaped extruded piece 20 is not required, and an ordinary flat plate may be used.

The blower injection device 5 is fixed to a reciprocating rod 21 that reciprocates up and down, a mounting frame 22 attached to the tip of the reciprocating rod 21, and the mounting frame 22 so that the angle position can be adjusted, and the bag opens. It is composed of a jet nozzle 23 that blows a jet air toward the opening auxiliary tongue piece 19 of the holder 2.

As shown in a partially enlarged front view of FIG. 3, the bag feeding device 7 is rotatably supported by a drive motor 24 attached to a machine frame 13 and a drive motor 24 via a drive belt 25. The drive shaft 26, the driven shaft 27 arranged horizontally to the drive shaft 26, the belt conveyor 28 spanned by the drive shaft 26 and the driven shaft 27, and the belt conveyor 28 are surrounded by the belt conveyor 28. A magazine tray 6 formed by extending forward, a main motor 30 attached to a mounting member 29 of the machine frame 13 and arranged above the end of the belt conveyor 28, and an auxiliary belt 31 from the main motor 30. The main driven roller 32 driven via the main driven roller 32, the sub driven roller 33 swingably attached to the main driven roller 32, and the main driven roller 32, the sub driven roller 33, and the auxiliary driven roller 34 form a triangular shape. It consists of a fast-forward belt 35 that has been hung.

As shown in a partial plan view of FIG. 4, the main driven roller 32 in which the drive shaft 38 is rotated by the auxiliary belt 37 spanned by the drive shaft 36 of the main motor 30 mounted on the mounting member 29 of the machine frame 13. Has three parallel fast-forward belts 35 hung on a swingable sub-driven roller 33 and an auxiliary driven roller 34.
As shown in the partially omitted front view of FIG. 5, the fast-forward belt 35 has a balance weight 39 (see FIG. 4) with an opening in the front and a double-formed bottom in the rear in a domino effect. The pressure is adjusted by the balance weight 39 so as to lightly contact the uppermost surface of the self-standing bags arranged diagonally in a columnar stack on the magazine tray 6, and the fast-forward belt 35 rotates at a peripheral speed faster than that of the lower belt conveyor 28. Only one self-supporting bag is supplied forward.

As shown in the enlarged perspective view of FIG. 6, the magazine tray 6 has a bottom surface 40 having a width substantially equal to that of a self-standing bag, and a belt hung on a drive shaft 26 and a driven shaft 27 at the center of the bottom surface 40. An opening 41 is formed so as to surround the belt conveyor 28 so that the conveyor 28 is exposed, and the bottom surface 40 is further extended forward to be formed so as to project from the belt conveyor 28 and stand upright on both sides in the entire length direction. A magazine guide 42 is provided.
Further, the magazine guide 42 is provided with a narrow boat-shaped bag holding guide 43 that guides both edges of the self-supporting bag on the tip side, and detects the self-supporting bag that abuts on the stopper plate 48 on the tip side of the bottom surface 40. A notch 44 for the limit switch for providing the limit switch 49 is formed.
In addition, the magazine trays 6 having different widths are prepared according to the dimensions of the self-standing bag, and the guide rails 45 formed on the machine frame 13 can be moved in the length direction as shown in FIGS. 3 and 4. The mounting member 29 supported by the 46 is moved to change the position of the fast-forward belt 35. Reference numeral 47 is a carrying handle for the magazine tray 6.

Next, the operation operation of the self-standing bag packaging device of the present invention will be described below with reference to the attached drawings.
In FIG. 1, the carry-in device 3 of the self-standing bag packaging device of the present invention is a chain conveyor 1 that is conveyed from the front side to the back side of the drawing, and moves to the chain conveyor 1 in a direction orthogonal to the traveling direction. A large number of reciprocating bag opening holders 2 mounted on the reciprocating table 16 are arranged at equal intervals.
The bag opening holder 2 is composed of a tray having side guides 18 for preventing falling off on both sides shown in FIG. 2, an opening assisting tongue piece 19 at the tip, and an open rear end.
The object to be packaged is manually placed on the central portion of the bag opening holder 2, and the chain conveyor 1 is intermittently driven to be carried to the package filling position.

At the package filling position, as shown in FIG. 2, a plurality of blower injection devices 5 and extrusion pushers 17 are arranged in parallel, and the object to be packaged is placed on the bag opening holder 2 and carried by the chain conveyor 1. The reciprocating table 16 is pushed out in a direction orthogonal to the traveling direction of the chain conveyor 1 by a pusher device (not shown), whereby the bag opening holder 2 is also pushed out in a direction orthogonal to the traveling direction of the chain conveyor 1.
Then, while the opening auxiliary tongue piece 19 of the bag opening holder 2 is inserted into the opening of the self-standing bag held by the suction device 9 shown in FIG. 1, the reciprocating moving rod 21 of the blower injection device 5 descends accordingly. The mounting frame 22 and the jet nozzle 23 stop descending to a predetermined position, and an instantaneous injection air is blown diagonally toward the opening auxiliary tongue piece 19, and a strong wind is instantaneously injected to the bottom of the independent bag to open the entire independent bag. Let me.
When the bag opening operation is completed, the reciprocating moving rod 21 rises, and the mounting frame 22 and the jet nozzle 23 rise and stop to a predetermined position accordingly.

Next, the reciprocating table 16 is further pushed out, the entire bag opening holder 2 is inserted into the self-standing bag, and the packaged object placed on the central portion of the bag opening holder 2 is also inserted into the self-standing bag.
When the extrusion pusher 17 is extruded into the self-supporting bag and the extruded piece 20 stops pushing the packaged object to the vicinity of the bottom of the self-supporting bag, when the pusher device (not shown) retracts, the reciprocating table 16 returns by the action of the return spring and the bag. The opening holder 2 also retracts.
As a result, the return of the packaged object is restricted by the extruded piece 20 of the extruded pusher 17, and the packaged object remains in the self-supporting bag, and then the extruded pusher 17 retracts and escapes from the self-supporting bag.
Then, the suction of the self-supporting bag of the suction device 9 is released, and the self-supporting bag is placed on the carry-out belt conveyor 11 of the carry-out device 12 and carried out to the sealing device in the next step.

On the other hand, in the self-supporting bag feeding device 7, the opening of the self-supporting bag is arranged in the front and the double-formed bottom is arranged in the rear in the magazine tray 6 shown in FIG. Accumulate.
The opening 41 of the magazine tray 6 is fitted to the belt conveyor 28 so that the self-supporting bags vertically laminated on the magazine tray 6 can be transferred forward by the belt conveyor 28 as shown in FIG.
A fast-forward belt 35 is arranged above the end side of the belt conveyor 28, and as shown in FIG. 5, the state-of-the-art self-supporting bag transferred by the belt conveyor 28 comes into contact with the fast-forward belt 35. Only one sheet is fast forwarded forward.
At that time, both sides of the self-standing bag are held by the bag side holding guide 43 of the magazine guide 42 of the magazine tray 6 and are carried to the stopper plate 48 at the tip shown in FIG. 3 without being lifted, and come into contact with the limit switch 49. , The drive of the fast-forward belt 35 is stopped.

Next, lift by adsorbing self-standing bag with suction device 9 is actuated, lifting printing the date of manufacture or the like at the bottom of the self-supporting bag by the print device 10 on the way you lateral conveyance, further upward of the unloading device 12 Transferred in parallel.
The self-supporting bag held in the suction device 9 is opened at the packaging position of the carry-out device 12, and the self-supporting bag is filled with the object to be packaged.
In the bag feeding device 7, when the self-supporting bag is sucked and transferred by the suction device 9, the limit switch 49 is turned off, the fast-forward belt 35 is driven, the next self-supporting bag is supplied, and the self-supporting bag comes into contact with the fast-forward belt 35. When the self-supporting bag runs out, the belt conveyor 28 is driven and the vertically stacked self-supporting bag is transferred to the position of the fast-forward belt 35.
In this way, the self-supporting bag packaging device of the present invention introduces a magazine tray as a bag feeding device so that the self-supporting bags having a double-bottomed bottom can be reliably fed and supplied one by one and moved up and down. The bottom of the self-standing bag can be reliably expanded by the jet nozzle.

1 Chain conveyor 2 Bag opening holder 3 Carrying device 4 Jet nozzle device 5 Blower injection device 6 Magazine tray 7 Bag feeding device 8 Suction holder 9 Suction device 10 Printing device 11 Carrying out belt conveyor 12 Carrying out device 13 Machine frame 14 Base 15 Electronic control Device 16 Reciprocating platform 17 Extruding pusher 18 Side guide 19 Opening auxiliary tongue piece 20 Extruding piece 21 Reciprocating rod 22 Mounting frame 23 Jet nozzle 24 Drive motor 25 Drive belt 26 Drive shaft 27 Driven shaft 28 Belt conveyor 29 Mounting member 30 Main motor 31 Auxiliary belt 32 Main driven roller 33 Secondary driven roller 34 Auxiliary driven roller 35 Fast-forwarding belt 36 Drive shaft 37 Auxiliary belt 38 Drive shaft 39 Balance weight 40 Bottom 41 Opening 42 Magazine guide 43 Bag holding guide 44 Notch for limit switch 45 Guide Rail 46 Coro 47 Carrying handle 48 Stopper plate 49 Limit switch

Claims (4)

Open the bag-opening holder that can be moved forward and backward and the packaged object that is placed on the bag-opening holder together with the reciprocating table. A carry-in device equipped with an extrusion pusher that extrudes to the mouth bag position,
An angle position-adjustable fixed jet nozzle device that diagonally blows jet air toward the opening auxiliary tongue piece of the bag opening holder in conjunction with the advancement of the bag opening holder to the opening bag position, and the jet. A blower injection device that lowers the nozzle device in conjunction with the advancement of the bag opening holder to blow the jet air diagonally and then raises it, and an opening in the center of the bottom surface of the magazine tray where the belt conveyor is exposed are formed. In order to ensure that the self-supporting bags can be supplied one by one, the bag feeding device is arranged in a vertical stack on the magazine tray in a domino bag shape with the opening in the front and the double-formed bottom in the rear. the self-standing bag and one adsorbed from bag feeders, releasing a suction device having a suction holder for lateral conveyance, the articles to be packaged adsorption of filled self-standing bags by extrusion pusher in the bag opening position lifted the bag opening position A self-supporting bag packaging device that consists of a carry-out device that is carried out by placing it on a carry-out belt conveyor. The blower injection device includes a reciprocating rod that reciprocates up and down, a mounting frame attached to the tip of the reciprocating rod, and a jet nozzle device that is fixed to the mounting frame so that the angle position can be adjusted. The jet nozzle device is lowered in conjunction with the advancement of the opening holder to the opening bag position, and the instantaneous jet air is blown diagonally toward the opening auxiliary tongue piece of the bag opening holder, and the jet air hitting the opening auxiliary tongue piece. The self-supporting bag packaging device according to claim 1, wherein the bag is blown toward the bottom of the self-supporting bag to surely expand the bottom of the self-supporting bag and then rise. The magazine tray has a bottom surface having a width substantially equal to that of the self-standing bag, and an opening is provided so as to surround the belt conveyor so that the belt conveyor hung on the drive shaft and the driven shaft is exposed at the center of the bottom surface. The self-supporting bag packaging according to claim 1 , wherein the bottom surface is further extended forward to be formed so as to project from the belt conveyor, and magazine guides are provided on both sides of the bottom surface in the entire length direction. Device. The magazine guide is provided with a narrow boat-shaped bag holding guide that guides both edges of the self-supporting bag on the tip side, and the self-supporting bag that hits the stopper plate on the tip side is detected on the bottom surface of the magazine tray. The self-standing bag packaging device according to claim 3, wherein a notch for a limit switch for providing a limit switch is formed.

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