JPH07125717A - Sandwich packaging apparatus - Google Patents

Abstract

PURPOSE:To enable various kinds of treatment to be carried out on a side of a conveyer and improve productivity in seal-packaging sandwiches with little manual operation. CONSTITUTION:A sandwich packaging apparatus comprises a conveyer 7 for carrying a work which is a sandwich of an approximately right angled triangle put into a wrapping bag, a sandwich filling means A and a work pull-in means B which are respectively provided oppositely to both sides of a work carrying position of the conveyer 7, in addition to a fusing seal/margin cutting means C, a wrapping bag folding means D, a sealing tape sticking means E and a work discharging means F, which are sequentially in contact in a carrying direction of the conveyer 7 on the same side as the sandwich filling means A. The conveyer 7 comprises numerous bucket parts 13 formed of a grounding part 9 grounding with a base of the work 5 and a holding plate pair 11, 11 for holding both faces of the triangle, wherein an opening of the wrapping bag 1 is positioned on a side to enable it to be carried.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device used for packaging a triangular sandwich in a film bag (hereinafter referred to as "packing bag"). In particular, the present invention relates to a sandwich packaging device that can perform each processing on one side of a conveyor in principle and is easy to automate.

[0002]

2. Description of the Related Art In the conventional packaging of triangular sandwich packaging bags, manual work has been the mainstream. However, it is not desirable from the viewpoint of hygiene and the productivity is poor. For this reason, the sandwich packaging apparatus having the following configuration is
No. 0202 is proposed.

"A conveyor is provided in which a loading bucket for inserting and inserting a bag containing a triangular sandwich is rotatably supported, and a surplus portion formed on the opening side of the bag is attached to the front side of the conveyor. A folding mechanism that is sequentially folded from each side surface, a back surface side, a sealing mechanism that cuts a seal tape for sealing one piece and is stuck by the folding mechanism by the above folding mechanism, and a sealed sandwich package. A packaging machine for sandwiches, wherein a label attaching mechanism for reversing and attaching a label at a predetermined position is arranged in the order of the traveling direction of the conveyor. "

[0004]

However, the packaging device described above does not disclose that the packaging bag is mechanically loaded, and it is necessary to do it manually.
Problems in hygiene and productivity tend to occur.

In addition, each work such as folding of the opening remaining portion of the packaging bag and sealing of the folded overlapping portion is performed from above the conveyor, and since various devices are arranged on the upper side, the conveyor is The above cleaning is not easy (cleaning must be performed frequently because it is food), and problems such as dust from the vibrating device easily entering the packaging bag and not being hygienic are likely to occur.

Further, the closed state of the opening of the packaging bag is far from the sealed state even if it is sealed by simply folding and polymerizing the excess portion of the opening, and the sandwich does not have a good shelf life (the bread becomes fast and hard, etc.), etc. There was a problem.

In view of the above, it is an object of the present invention to provide a sandwich packaging apparatus capable of hermetically sealing a sandwich in a hygienic manner with almost no human touch, with good productivity and hygiene.

[0008]

The sandwich packaging apparatus according to the present invention solves the above-mentioned problems by the following constitution.

A conveyer for conveying a work, which is a substantially right-angled triangular sandwich loaded in a packaging bag, a sandwich loading means and a work pulling-in means, which are arranged on both sides of a work carrying-in position of the conveyor, respectively. On the same side as the sandwich loading means, a welding seal / surplus part cutting means, which is sequentially contacted in the conveying direction of the conveyor, a packaging bag folding means, a sealing tape sticking means, and a work discharging means, and the conveyor, It is provided with a large number of bucket portions formed by a pair of sandwiching plates sandwiching the grounding portion grounding the bottom of the work and its triangle, and allowing the opening of the packaging bag to be located on one side for transport. It is characterized by

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

A. The sandwich packaging device of this embodiment,
Basically, a sandwich having a substantially right triangle shape, that is, a work 5 loaded in a packaging bag 1 (as shown in FIG. 1).
7 and a sandwich loading means A and a work drawing-in means B, which are arranged opposite to each other on both sides of the work loading position of the conveyor 7, and on the same side as the sandwich loading means A, the transport direction of the conveyor A. A welding seal / surplus part cutting means C, a bag flap part folding means D, a sealing tape sticking means E, and a work discharging means F (see FIGS. 2 and 3). Next, the conveyor and each means will be described in detail.

In the illustrated example, the sandwich loading means A
Two sets of the work drawing means B and the work drawing means B are provided, but one set may of course be used. Further, although the driving means in each means is not specified, a crank / cam mechanism, an air cylinder or the like is usually used as the driving means.

(1) The conveyor 7 has a grounding portion 9 that is in contact with the bottom of the work 5 and a holding plate pair 1 that holds both sides of the triangle.
A large number of bucket portions 13 formed of 1 and 11 are provided,
The opening of the packaging bag 1 is positioned on one side so that it can be transported (see FIG. 5).

Here, the conveyer 7 includes a pair of nipping plates 11, 1
1 is connected to a driving mechanism capable of differentially moving each other, and a sandwiching plate pair 1
The distance between 1 and 11 can be adjusted. Specifically, as shown in FIG. 5, a pair of chain conveyors 7 a, 7 driven by a pair of sprockets 14 capable of differential driving and synchronous driving.
a, the sandwiching plate pairs 11 and 11 are flange portions 11a and 11a.
Are connected separately via. Further, it is desirable from the viewpoint of workability of drawing in the work that the work drawing-in side of the sandwiching plate pair 11 is opened in a tapered shape as shown in FIG.

Although not inevitable, when the work 5 may be pushed to the other side of the conveyor 7 (the side opposite to the work drawing side), a rotatable work holding member 20 as shown in FIG. It is desirable to dispose (holding roller 20a on the lower surface).

(2) The sandwich loading means A comprises a loading bucket 15, a packaging bag accumulator 17, and the packaging bag accumulator 1
It is composed of a vacuum suction device 19 capable of moving the packaging bags one by one and holding the sandwich loading bag at the same time, and an air blowing device 21 for inflating the packaging bag 1 when the packaging bag 1 is taken out. And the loading bucket 15 is
Loading bucket body 2 that is rotatable and can move back and forth
3 and a holding plate 25 that constitutes a part of the vertical portion of the loading bucket main body 23 and is capable of moving the loading bucket main body 23 back and forth relatively (see FIGS. 4 and 5).

Specifically, the loading bucket 15 is shown in FIG.
In a triangular shape as shown in FIG. 2, the traveling rail 29 is rotatably held by a traveling frame 29 via a bracket 30 and is movable back and forth. Further, the bracket 30 has a curved groove cam 3 curved downward on the retreating side.
It is connected to the driven wheel 33 running on the vehicle 1 through the L-shaped arm 35, and the loading bucket 15 can be raised from the inclined state to the horizontal state by advancing from the retracted state. Further, a horizontal wheel 36 that travels on a rail 37 connected to the push plate 25 is formed on the lower surface of the L-shaped arm 35 so that the loading bucket body 23 and the press plate 25 can move relative to each other. Although not shown, it is desirable that the loading bucket main body 23 has a two-piece configuration so that the length in the width direction can be adjusted.

The packaging bag accumulator 17 is arranged at the forward position of the loading bucket 15, that is, immediately above the sandwich loading portion, and the stacking rod 3 is provided inside the take-out port 17a.
A pair of protrusions 9 are provided, and both sides of the opening-side fin portion 1a of the packaging bag 1 are skewered and can be held. At this time, it is desirable to use, as the opening-side protruding portion 1a of the packaging bag 1, one having a pair of holding holes 1b that are easily broken at perforations (see FIG. 1).

The vacuum suction device 19 is disposed below the packaging bag integrator 17, and is provided with a plurality of suction cups on a suction cup holding plate 43 connected to the tip of a vertically reciprocating drive member 41 that is obliquely arranged. This is a configuration in which 45 is held. 44
Serves as a mounting table when the sandwich is loaded. Reference numeral 38 is a guide support pipe for the vertical reciprocating drive member 41.

As shown in FIGS. 13 to 14, a packaging bag opening auxiliary jig 42 is attached to the vertical reciprocating drive member 41 of the vacuum suction device 19 to prevent the packaging bag 1 from being opened due to a suction error. It is desirable to do. That is, when the suction is started, the swiveling lever 40 swivels upward to invade the packaging bag 1 from below the opening side fin portion 1a so as to open the packaging bag 1 in the tangential direction, and then vertically reciprocates in that state. The drive member 41 is lowered to the bottom dead center position, and then the turning lever 40 is reversely rotated to return to the original position.

The air blowing nozzle 46 is arranged at a position facing the air opening side of the packaging bag when the vacuum suction device 19 descends.

(3) The sandwich pull-in means is a reciprocating member having a chuck portion 48 for gripping the closing side fin portion 1c of the packaging bag 1. Specifically, the chuck portion 48 includes a holding portion 49 that is operated by the air cylinder 47.

(4) The welding seal / surplus part cutting means is a pair of pleating members 5 for opening the opening edge of the packaging bag 1 up and down.
1, 52 (see FIG. 6), a welding tool 55 for welding in the retracted state of the pleating members 51, 52, and a cutting blade 57 for cutting the outside of the welded seal portion (see FIG. 7).
Here, the welding tool 55 is a pinch type, and its operation rod 59
It is designed to be opened by advancing and closing it and retracting it. In the illustrated example, the resistance heating element 54 a is the welding head 5.
Although it is a thermal welding instrument embedded in Nos. 4 and 54, it may be an ultrasonic / high frequency welding instrument or the like. In the illustrated example, 50 is a guide rod for the pleating members 51, 52. Note that one of the welding heads 54 is a separate body and is screwed to the main body side via a disc spring 53 in order to alleviate impact during welding.
Further, the cutting blade 57 is the welding head portion 54 of the welding tool 55.
The receiving member can be cut. The cutting blade 57 is urged by a spring 58 in the returning direction and can be driven by a hitting lever 60.

(5) The flap part folding means D has a fixed horizontal folding plate 61 having a height for folding the flap part f while guiding it in a direction opposite to the advancing direction, and an upper flap part f.
An upper folding movable plate 63 capable of reciprocating vertically and holding u downwardly, and an introduction slanted portion 65a and an introduction slanted portion 65a which are slid upward while guiding the lower flap portion fl.
A lower folding fixing plate 65 having a horizontal portion 65a which is continuously formed on the sealing tape adhering means E and is continuous until just before the disposing portion.
And an upper folding holding plate 67 arranged above the lower folding fixing plate 65. The upper foldable plate 63 is driven by a vertical reciprocating drive device 64.

The upper folding movable plate 63 and the lower folding fixed plate 6
When folding, the folding width template 66 of which one end is connected is disposed inside the flap portion of the packaging bag 1 at the time of folding (see FIG. 8). desirable.

(6) The sealing tape sticking means E comprises a first sticking device 69 and a second sticking device 71 arranged on the side of the first sticking device 69 in the work conveying direction (FIG. 2).・ See 3).

The first sticking device 69 is composed of a tape roll 73 that can move up and down and a pressing head 75 made of a polymer elastic body that presses the lower end of the tape roll 73 to a predetermined position of the folding overlapping portion of the packaging bag. And a cutting blade 79 mounted on the roll base 77 of the tape roll 73 and a tape curving prevention member 81 (FIG. 9). Here, the tape curving prevention member 81 includes a pedestal 85 that receives the non-adhesive surface side of the tape T and curls and bulges in the width direction, and a gate-side pressing bar 87 that presses the adhesive surface side of the tape (FIG. 10). Further, although not necessarily on the pressing surface of the pressing head 75,
In order to secure the tape pressing, it is desirable to form a pressing needle or a pressing convex portion.

The second sticking device 71 sticks a tape T which is vertically reciprocally movable and pushed up from below, and is equipped with a sticking roller 83 (see FIG. 11). The sticking roller 83 is biased in the tape pressing direction by a spring 89 in the illustrated example, and is held at one end of a rotary lever 93 in which a driven roller 91 is held in the other end. This allows the tape to tilt in the tape pressing direction.

(7) The work unloading means F is provided with an extruding and discharging plate 97 that is reciprocally movable in the front-rear direction and is arranged so as to be pushed out while pressing the inclined surface of the work 5 (see FIG. 12). Here, although not necessarily required, it is desirable that the extrusion discharge plate 97 be provided with a vacuum suction disk 99 on the upper side thereof. The forward and backward reciprocating movement is performed by a traveling block 103 that runs the guide rod 101 in the longitudinal direction.

B. Next, a usage mode of the above-mentioned embodiment will be described.

(1) First, as shown by the chain double-dashed line in FIG. 4, sandwiched manually or mechanically in the loading bucket 15 which is in the retracted position guided by the curved groove cam 31 and whose opening surface is substantially horizontal. Turn on 3.

(2) In the above state, as shown by the chain double-dashed line in FIG. 5, the suction cup 45 of the vacuum suction device 19 is raised, the packaging bag 1 is sucked onto the suction cup 45, and the suction cup 45 is lowered in that state. At this time, since the open end side fin portion 1a of the packaging bag 1 is held by the stacking rod 39, the packaging bag 1 is set at the sandwich loading position while opening. At this time,
If the bag opening auxiliary jig 42 is rotated from the lower side of the packaging bag 1 and inserted into the opening of the packaging bag 1 at the same time,
There is no risk of defective opening of the packaging bag 1.

In this state, it is desirable to blow air from the air nozzle 45 into the bag so that the bulge is complete.

In this state, the entire loading bucket 15 loaded with the sandwich 3 is advanced. Then, the loading bucket 15 is guided by the curved groove cam 31 to change from the inclined state to the upright state and enters the packaging bag 1 (FIG. 4).
・ See 5).

In this state, the loading bucket body 23 is retracted. At this time, as shown in FIG. 5, the holding plate 25 stays in the original position until the bucket body 23 is separated from the sandwich 3 by a stopper or the like (not shown), and then the stopper or the like is released and retracts together with the bucket body 23. Therefore, there is no possibility that the sandwich 3 will be held in the loading bucket 15 and pulled out from inside the bag as the loading bucket 15 retracts.

(3) In this way, the sandwich 3 in the packaging bag 1
After releasing the vacuum suction of the suction cup 45, the chuck portion 48 of the work drawing means B is advanced to the closing side fin portion 1c of the packaging bag 1. Then, the air cylinder 4
7 to operate the holding portion 49 to close the fin 1 on the closing side of the packaging bag 1.
When c is gripped, the chuck portion 48 is retracted in that state, and when it reaches the set position on the conveyor 7, the grip is released. In this way, the loading of the work 5 onto the conveyor 1 is completed.

(4) Next, the conveyor 1 is moved to convey the work 5 to the welding seal cutting site. Therefore,
The pleating members 51 and 52 are moved forward to open and close the edge of the opening of the packaging bag 1 vertically as shown by the chain double-dashed line in FIG. Then, the pleating members 51 and 52 are retracted, the welding tool 55 is advanced to a predetermined position, and the welding head portion 54 is sandwiched between the pleated members 51 and 52 to weld and seal the opening of the packaging bag 1.
In this state, the cutting blade 57 is hit by the hitting lever 60 to move it forward to cut the outside of the welded seal portion. Then, the cutting blade 57 is retracted, and the welding instrument 55 of the welding seal / remaining cutting means is opened and retracted.

(5) After this welding seal is completed, the work 5 is conveyed by the conveyor 7. Then, first, the lateral folding fixing plate 61 tilts the flap portion f while guiding it in a direction opposite to the traveling direction. Then, the conveyor 7 is stopped, the upper folding movable plate 63 is lowered by the vertical reciprocating device 64, and the upper flap portion fu is pushed down while being pushed down. After that, the upper folding movable plate 63 is raised and the conveyor 7 is moved again. Then, the lower folding fixing plate 65 is tilted upward while guiding the lower flap portion fl by the hatched portion 65a. At this time, the upper folding is held by the upper folding holding plate 67, and the lower folding is held by the horizontal portion of the lower folding fixing plate 65 until the sealing tape is adhered. At this time, the folding width die plate 66 arranged inside the upper folding holding plate 67 and the lower folding fixing plate 65 stabilizes the folding width of the flap Fu, and there is no possibility of defective packaging.

(6) Then, when the work 5 reaches the sealing tape adhering portion, the conveyor 7 is temporarily stopped, the tape roll 73 is lowered, the sealing tape T is fed out from the tape roll 73, and the lower end thereof is folded to form a superposition section. To the predetermined position (at first, manually, and later at the pressing head 75). Then, the tape roll 73 is raised to the position indicated by the chain double-dashed line in FIG.
The sealing tape T is cut by rotating. At this time, the sealing tape T is prevented from curving on the adhesive surface side by the tape curving prevention member 81.

Subsequently, the conveyer 7 is moved again, conveyed to the site of the second sticking device 71, and stopped. At that portion, the sealing tape T is pressed while pressing the sealing tape T from below while guiding the sticking roller 83 with the plate cam 95.

(7) The conveyor 7 is moved again to convey the work 7 to the work discharge position, and then the push-out discharge plate 97 is moved forward to contact the inclined surface of the work 5. At this time, pulling the upper end of the work 5 with the suction disk 99 is
It is desirable because it can prevent the lower surface of the sticker from sticking to the surface of the conveyor 7. Then, the extrusion discharge plate 97 is further advanced to discharge the work 5. Then, the extrusion discharge plate 97 is retracted and returned to the original position.

[0042]

The operation and effect of the invention The sandwich packaging apparatus according to the present invention has the following operation and effects due to the above configuration.

The work can be carried into the conveyor from the width direction side, and the subsequent welding seal / remaining part cutting process, folding process, seal sealing process, and work discharge process should be performed only on one side in the width direction of the conveyor. You can

Therefore, it becomes possible to carry out hermetically sealed sandwich packaging with good productivity and hygiene with almost no human touch.

[Brief description of drawings]

FIG. 1 is a rear view of a packaging bag used for sandwich packaging of the present invention.

FIG. 2 is an overall schematic plan view of the sandwich packaging device of the present invention.

[FIG. 3] Similarly, an overall schematic side view

FIG. 4 is a main part view of a sandwich loading means in the sandwich packaging device of the present invention.

FIG. 5 is a principal part diagram of the work drawing means.

FIG. 6 is an explanatory view of a pleating member which is also used for welding and sealing.

FIG. 7 is a plan view of the main part of the welding tool.

FIG. 8 is a principal part diagram of the bag flap folding means.

FIG. 9 is a principal part diagram of the first attaching device of the sealing tape attaching means.

10 is a sectional view taken along line XX of FIG.

FIG. 11 is a main part diagram of a second sticking device of a seal sticking means in the sandwich packaging device of the present invention.

FIG. 12 is a principal part diagram of the work unloading means.

FIG. 13 is an operation explanatory view of a packaging bag opening assisting jig attached to the vacuum suction device of the sandwich loading means in the sandwich packaging device of the present invention.

FIG. 14 is a plan view of a packaging bag opening auxiliary jig.

[Explanation of symbols]

 1 Packaging Bag 3 Sandwich 5 Work 7 Conveyor 11 Clamping Plate 13 Conveyor Bucket Part 15 Loading Bucket 17 Packaging Bag Accumulator 19 Vacuum Suction Device 42 Packaging Bag Opening Aid Tool 48 Chuck Part 55 Welding Tool 61 Horizontal Folding Plate 63 Top Folding movable plate 65 Lower folding fixing plate 66 Folding width template 69 First sticking device 71 Second sticking device 73 Tape roll 97 Extrusion discharge plate A Sandwich loading means B Work drawing means C Welding seal / remaining part cutting means D Bag Flap part folding means E Seal tape sticking means F Work discharging means

Claims (6)

[Claims] 1. A conveyor for carrying a work, which is a substantially right-angled triangular sandwich loaded in a packaging bag, and a sandwich loading means and a work retracting means, which are arranged respectively on opposite sides of the work loading position of the conveyor. , A welding seal / surplus part cutting means which is in contact with the conveyor loading direction on the same side as the sandwich loading means,
A bucket portion including a packaging bag folding means, a sealing tape attaching means, and a work discharging means, wherein the conveyor is formed by a grounding portion that is in contact with the bottom of the work and a pair of sandwiching plates that sandwich both sides of the triangle. A sandwich packaging apparatus comprising a large number of the above and capable of being conveyed with the opening of the packaging bag positioned on one side. 2. The sandwich packaging device according to claim 1, wherein the sandwiching plate pair of the conveyor is connected to a drive mechanism capable of differentially adjusting each other, and the distance between the sandwiching plate pair can be adjusted. 3. The sandwich packaging device according to claim 2, wherein the work inserting side of the sandwiching plate pair is opened in a tapered shape. 4. The fixed lateral folding plate according to claim 1, wherein the flap folding means arranged along the opening side of the packaging bag of the conveyor folds down the fin portion while guiding in a direction opposite to the traveling direction. An upper folding movable plate that vertically reciprocates while pushing down the upper fin portion while pushing it downward, an introduction slanted portion that is slid upward while guiding the lower fin portion, and a sealing tape attached continuously to the introduction slanted portion A sandwich packaging device comprising: a lower folding fixing plate having a horizontal portion that continues until just before the wearing portion, and an upper folding holding plate disposed above the lower folding fixing plate. 5. The work discharge device according to claim 1, further comprising an extrusion discharge plate disposed so as to be pushed out toward the opening side of the packaging bag while pressing the inclined surface of the work and capable of reciprocating in the front-rear direction. A sandwich packaging device. 6. The extrusion discharge plate according to claim 5,
A sandwich packaging device comprising a suction plate on the upper side thereof.