JPH0848302A - Packaging device - Google Patents

Abstract

PURPOSE:To provide a simplified packaging device wherein a bag-making process and sealing (packaging) process can take place together, and the device can be easily adopted to the size (length dimension) of an article, and in addition, an unfavorable sealing is prevented from generating. CONSTITUTION:A packaging device is equipped with a stock material roll- holding part 2 which winds a stock material roll 1 consisting of a long flat cylindrical plastic film into a roll-shape and holds, feeding roll 5, motor M for roll, and length dimension-control means G which controls the motor M. The packaging device is also equipped with a cutter 6, and a heat-welding/ pressing machine 15 which seals a location which is approx. equal to a length dimension L from the leading edge part (1a) of the fed stock material roll 1 to form a bag wherein one end is open, and at the same time, seals the opening end edge after an article is put. Also, a timer 16 which controls a period of time wherein the heat-welding/pressing machine 15 presses and heats the stock material roll 1 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article packaging device used in a store or the like.

[0002]

2. Description of the Related Art Conventionally, in a store such as a department store or a supermarket, a plastic bag manufactured to have a predetermined size (shape) has been used for packaging (sales) articles.

[0003]

By the way, when there is a fear of liquid leakage in food products, it is necessary to close the opening of the plastic bag containing the food products with a rubber cord or vinyl tape. It was difficult and difficult to seal.

Further, when the articles to be packaged have different sizes, if the size of the bag is constant, it may be wasteful or, conversely, the articles cannot be stored because they are too large.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, an original fabric holding portion for winding and holding an original fabric made of a long flat tubular plastic film in a roll shape, and the original fabric are A feed roll fed out from the original fabric holding portion and fed, a roll motor for rotationally driving the feed roll, a length dimension control means for controlling the motor to determine the length dimension to be fed, and the feed A cutter disposed in the vicinity of the downstream side of the roll, and a position substantially equal to the length dimension from the tip edge portion of the raw material which is disposed in proximity to the downstream side of the cutter and sent out, and one side is opened. A heat-fusion-bonding press for forming a bag-like bag and sealing the opening edge of the article after storage, and a timer for controlling the time during which the heat-fusion-bonding press presses the original fabric to heat it. are doing.

Further, an original fabric holding portion for winding and holding a raw fabric made of a long flat tubular plastic film in a roll shape, and a feed roll for feeding the original fabric from the original fabric holding portion. A roll motor for rotationally driving the feed roll, a length dimension control means for controlling the motor to determine the length dimension of the feed roll to be adjustable, and a roll motor disposed near the downstream side of the feed roll. A cutter and a position close to the downstream side of the cutter and fed out from the leading edge of the original fabric are sealed at a position approximately equal to the length dimension to form an open bag and store articles. A heat fusion pressing machine that seals the rear opening edge, a timer that controls the time for which the heat fusion pressing machine presses and heats the original fabric, and a setting means that can adjust the time of the timer. , Equipped.

It is preferable that the cutter be operated by the same actuator as the reciprocating pressing portion of the heat fusion pressing machine.
Further, the original fabric holding portion, the feed roll, the motor, the length dimension control means, the cutter, and the heat fusion pressing machine are portable.
It is preferably provided on the base frame of the table.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the illustrated embodiments.

FIG. 1 shows a simplified structure of an article wrapping apparatus, where 1 is an original fabric made of a plastic film,
As shown in FIG. 2, it is a long flat tubular shape and is made of a thermoplastic such as polyethylene or polypropylene. It is wound in advance in a roll shape and is rotatably held by the original fabric holding portion 2.

That is, the original fabric holding portion 2 has a support shaft 3 which is inserted into the central hole of the roll-shaped original fabric 1 and rotatably holds the roll-shaped original fabric 1, and the original fabric 1 to be fed out. Are guided to the feed roll 5 through the idle guide rolls 4 ...

The feed roll 5 is made up of a pair of rolls that rotate in the direction of the arrow while holding the fed-out raw fabric 1 from both sides, and at least one roll is rotationally driven by a roll motor M.

A cutter 6 is disposed near the downstream side of the feed roll 5, and a heating seal portion 7 is disposed adjacent to the downstream side of the cutter 6.

The heating seal portion 7 (in FIG. 1) has a receiving plate 9 having a heating portion 8 such as a nichrome wire, and a reciprocating pressing operation for reciprocating the receiving plate 9 so as to approach and separate from the receiving plate 9 (at right angles). Consisting of 10 parts.

Moreover, in FIG. 1, the cutter 6 and the reciprocating pressing portion 10 are connected to each other via the same actuator 12 through the connecting member 11.
And reciprocates. That is, although the case where the actuator 12 is a fluid pressure cylinder is illustrated in FIG. 1, this fluid pressure cylinder is alternately supplied with pressure fluid via the solenoid switching valve 13, and as shown by arrows A and B, It reciprocates.

The heat fusion pressing machine 15 includes an actuator 12,
Switching valve 13, fluid source (pump and motor, etc.), connecting member 11,
It is composed of a pressing unit 10 and a heating unit 8.

This heat fusion pressing machine 15 includes a heat seal portion 7
By heat fusion of the raw material holding portion 2 side-upstream side-by a predetermined dimension from the tip edge portion 1a of the raw material 1 which is arranged on the downstream side of the cutter 6 and is fed from the feed roll 5. ,
On the other hand, an open bag F is formed (see FIG. 6). Prior to this heat fusion, the cutter 6 cuts C (see FIG. 6) slightly upstream of the heat fusion portion.

The time during which the reciprocating pressing portion 10 presses the original fabric 1 toward the receiving plate 9 to heat it--that is, the heat fusion pressing device 15
A timer 16 is provided in order to control the time when the raw material 1 is pressed and heated.
The solenoid of the switching valve 13 can be ON-OFF controlled.

The timer 16 can be adjusted in time by the setting means 17, and sets the length of the pressing time for sufficient fusion according to the material, thickness, etc. of the material 1.

Further, in FIG. 1, length dimension control means G is provided for controlling the roll motor M to determine the length dimension L for feeding out the raw fabric so as to be able to increase or decrease. That is, as shown in FIGS. 1 and 6, the length dimension L is between the cut C and the next cut C.
And can be determined according to the size (length dimension) of the article to be packaged.

As the length dimension control means G, the simplest one is that the length set in the digital counter is subtracted by the pulse signal from the encoder attached to the feed roll 5 and the feed is stopped by zero reset. ,Configure. Alternatively, as the length dimension control means G, a pulse motor may be used as the motor M to be integrally configured. Further, as the length dimension control means G, another simple one is a foot switch operated by a person's foot, and the length dimension L to be sent can be visually judged to turn the foot switch on and off. Good.

From the viewpoint of handling, it is desirable that all of the components shown in FIG. 1 be provided in one portable base frame to be portable. That is, it is desirable that all of the original fabric holding section 2, the feed roll 5, the motor M, the length dimension control means G, the cutter 6, and the heat fusion pressing machine 15 be portable.

In FIG. 1, the pattern of the original 1 (characters
It is also preferable that a detection sensor 18 (including a figure / symbol) is additionally provided so that the cutting, the heat-sealing position, and the relative position of the pattern are constantly controlled. In this case, the output signal from the sensor 18 is input to the dimension control means G (the circuit is not shown).

A magnet may be used as the actuator 12 (not shown).

Next, using the packaging apparatus illustrated in FIG. 1,
Explaining the method of wrapping the articles, first, as shown in FIG. 2, a roll 1 is preliminarily rolled with a raw material 1 made of a long plastic film in the shape of a flat cylinder, in which left and right side edges are continuously folded. It is wound into a shape and set on the original fabric holding portion 2.

Only the length L corresponding to the size of the article H to be packaged (see FIGS. 8 to 10) (the feed roll 5 is set to the motor M).
It is rotatably driven by, and is fed out, and in the state of FIG.
To stop the feeding.

The feed dimension is controlled by the dimension control means G. When a foot switch is used, the operator (operator) judges by looking at the article H and operates the foot switch for an appropriate time. It is sufficient to step on the foot and rotate the motor M. Further, in the case of the dimension control means G using an electronic circuit and an encoder, the feed dimension can be increased or decreased by turning a knob or the like, or the article name and its length dimension can be preset by the setting input means (keyboard etc.). After inputting, and the worker (operator) presses the button of the article name, the feed of the length dimension L corresponding thereto is automatically given. Alternatively, a bar code is attached to each article (product) in advance, and the bar code is read by a reader, or correspondingly, only the length dimension L previously input to the dimension control means G is fed. May be performed (by program control).

Next, as shown in FIGS. 3 to 4, when the cutter 6 and the pressing portion 10 are simultaneously lowered (by the operation of the actuator 12 in FIG. 1) as shown by an arrow A, the cutter 6 moves downward. The raw material is cut into the length L in cooperation with the plate member 19, and the pressing portion 10 cooperates with the heating portion 8 to heat while applying pressure to perform the first heat fusion.

It should be noted that the timer 16 in FIG. 1 is set in advance to a time sufficient for the first heat fusion, and then, as shown by an arrow B in FIG.
When the pressing part 10 is raised, a bag F having a one-side opening is obtained as shown in FIG.

That is, the bag F obtained by such a bag-making process has a position approximately equal to the length L from the leading edge 1a of the raw fabric 1--a position having a slightly smaller size. Sealing is performed by heat fusion to form a widthwise sealed fusion-bonded portion 21. The cutting C is performed slightly upstream of the hermetically fused portion 21.

Next, as shown in FIG. 7, after the article H is inserted into the bag F having the one-side opening as shown by the arrow and stored,
As shown in FIG. 8 (inverting the upstream end and the downstream end of the bag F), the opening edge 22 of the bag F is installed between the pressing part 10 and the heating part 8, and again as shown by the arrow A. The pressing unit 10 is lowered, and the second heat fusion is performed as shown in FIG. 9 (the sealing step is performed) to package the article H in a hermetically sealed state. After that, as shown in FIG. 10, the pressing portion 10 is raised in the direction of the arrow B, and the bag F ′ in which the packaging of the article H is completed is taken out. FIG. 11 shows a state in which the article H is thus sealed and completely packaged.

As described above, if the first heat fusion and the second heat fusion are performed by the same heat fusion pressing machine 15, the equipment cost can be reduced and the apparatus can be installed in a small space. It's done.

The basic operation will be summarized as follows (or including other operating methods).

The roll-shaped original fabric 1 is mounted. The feed length is set by a digital switch (as the dimension control means G). Set the sealing time with timer 16. Start with touch switch. The feed roll 5 feeds out the set length dimension and stops, and the cutter 6 and the pressing portion 10 descend and heat-fuse for the first time, and then rise (open). The article H is stored in the bag F. Opening edge of bag F
22 is placed on the heating unit 8 and the foot switch is operated by the foot to lower the pressing unit 10 for the second heat fusion.
(Although not shown, the cutter 6 and the pressing portion 10 may be different actuators so that only the pressing portion 10 descends at this time, or the connecting member may be formed of two parts, such as a solenoid pin. It may be configured to be freely connectable (integrated) and separated from each other.) Opened and completed.

According to this article packaging apparatus, however, it is not necessary to prepare various bags in advance in a store that sells food, daily necessities, miscellaneous goods, and other various articles.

In addition, a bag can be produced immediately and used immediately (for packaging) in a required amount when needed. At this time, since the size of the bag depends on the article to be packaged, there is no waste, and conversely, a long wooden board, wood, rod, etc. can be entirely packaged easily. Further, only one heat fusion pressing machine is required, and the apparatus can be made compact.

Further, the length dimension control means G allows easy and reliable packaging of an article having a size sufficiently long to fit the dimension (such as a long article) without waste. Also, by the operation of the actuator 12, cutting and heat fusion,
Can be done (almost) at the same time. The structure can be simplified.

Further, an operator such as a salesperson can easily determine the size (length dimension) of the bag by using the foot switch in accordance with the article to be packaged. Furthermore, the size (length) of the bag can be easily set by the length control means G composed of an electronic circuit so that the bag has a size suitable for the article to be packed. In addition, it is convenient to be able to easily move to a place in a large store where packaging is required.

[0038]

According to the present invention, the following significant effects can be obtained by the above-described structure.

The apparatus is simple (according to claim 1) and can perform both the bag making step and the sealing (packaging) step. Since the original fabric 1 is held in the form of a roll, it does not take up much space and the size of the article H (length dimension)
Can be easily dealt with. Further (as the timer 16 is provided), the original fabric 1 can be sufficiently fused and sealed, and the sealing failure does not occur.

(According to claim 2) The same effect as that of claim 1 is obtained, and the material, thickness, etc. of the material 1 (by adjusting the time of the timer 16 by the setting means 17). Therefore, it is possible to take a sufficient heating time, and it is possible to prevent the sealing failure more reliably.

Actuator 12 (according to claim 3)
Since only one is required, the structure can be simplified, and the first heat fusion and cutting can be performed quickly.

(According to claim 4) For example, in a large-scale store, it is possible to easily move from one sales floor to another sales floor, which is convenient.

[Brief description of drawings]

FIG. 1 is a configuration explanatory view showing an embodiment of the present invention.

FIG. 2 is a perspective view of an original fabric.

FIG. 3 is an operation explanatory diagram.

FIG. 4 is an operation explanatory diagram.

FIG. 5 is an operation explanatory view.

FIG. 6 is an explanatory diagram showing a state immediately after the completion of the bag manufacturing process.

FIG. 7 is a perspective view showing immediately after an article is inserted.

FIG. 8 is an operation explanatory diagram.

FIG. 9 is an operation explanatory view.

FIG. 10 is an operation explanatory diagram.

FIG. 11 is a perspective view showing a completed packaging state.

[Explanation of symbols]

 1 Raw Fabric 1a Tip Edge 2 Raw Fabric Holding 5 Feed Roll 6 Cutter 10 Reciprocating Pressing 12 Actuator 15 Heat Fusing Press 16 Timer 17 Setting Means 22 Opening Edge M Roll Motor H Packaged Goods G Dimension Control Means F bag L length dimension

Claims (4)

[Claims] 1. A raw fabric holding portion 2 for winding and holding a raw fabric 1 made of a long flat tubular plastic film, and feeding the raw fabric 1 from the raw fabric holding portion 2. Feeding roll 5, a roll motor M that rotationally drives the feeding roll 5, and a length dimension control unit G that controls the motor M to determine the feeding length dimension L so as to be adjustable.
The cutter 6 arranged near the downstream side of the feed roll 5 and the length dimension L from the tip edge portion 1a of the raw fabric 1 which is arranged near the downstream side of the cutter 6 and fed out.
The heat fusion pressing machine 15 which seals a position substantially equal to the one side to form an open bag F and seals the opening edge after storing the article H, and the heat fusion pressing machine 15 is the above-mentioned original sheet 1 And a timer 16 for controlling the time for pressing and heating the article packaging apparatus. 2. A raw fabric holding part 2 for winding and holding a raw fabric 1 made of a long flat cylindrical plastic film, and feeding the raw fabric 1 from the raw fabric holding part 2. Feeding roll 5, a roll motor M that rotationally drives the feeding roll 5, and a length dimension control unit G that controls the motor M to determine the feeding length dimension L so as to be adjustable.
The cutter 6 arranged near the downstream side of the feed roll 5 and the length dimension L from the tip edge portion 1a of the raw fabric 1 which is arranged near the downstream side of the cutter 6 and fed out.
The heat fusion pressing machine 15 which seals a position substantially equal to the one side to form an open bag F and seals the opening edge after storing the article H, and the heat fusion pressing machine 15 is the above-mentioned original sheet 1 An article packaging apparatus comprising: a timer (16) for controlling the time for pressing and heating and a setting means (17) for adjusting the time of the timer (16). 3. The article packaging apparatus according to claim 1, wherein the cutter 6 is operated by the same actuator 12 as the reciprocating pressing portion 10 of the heat fusion pressing machine 15. 4. The original fabric holding portion 2, the feed roll 5, the motor M, the length dimension control means G, the cutter 6, and the heat fusion pressing machine 15 are provided on one portable base frame. The article packaging apparatus according to claim 1 or 2.