JP2006264695A - Handy heat sealer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handy heat sealer which is conveniently used at home, capable of obtaining the sound sealability durable for the practical use, and easily stored. <P>SOLUTION: A dry battery is employed for a power supply, a rotary type heating mechanism is employed for a heating mechanism, and a mechanism for pressing a material to be sealed is provided on a tool separately from a pressing mechanism of the tool to press and heat the material to be sealed. A receiving stand to receive the material to be sealed is provided, the receiving stand is integrated with the tool for pressing and heating the material to be sealed, and a roller is provided on the receiving stand. The pressing mechanism, the receiving stand and the roller are applied to a heat sealer having a linear heating mechanism. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a heat sealer that can be used for light flights that do not require storage.

A method of stacking two or more materials to be welded when heated and pressing a heating body thereon to weld the materials together to make them airtight (sealing) is called heat sealing, and has been widely used in recent years. ing.
Machines and instruments used for heat sealing are generally referred to as heat sealers, but they are sealed with heat sealers (hereinafter also referred to as “heat-seal” or “generate seals” as appropriate). In accordance with the characteristics of the material, it is necessary to apply a predetermined amount of heat per unit area within a predetermined time under a predetermined pressure.

  Taking advantage of this characteristic, the opening of the plastic bag is heat sealed to seal the bag. The material used for this purpose is polypropylene / polyethylene film or nylon film / OPP for these films. There are a film laminated with a film and the like, a film deposited with aluminum, and the like. As a heat-silling machine / equipment, a permanent large-sized one and a handy one have been marketed and put into practical use.

  The large-sized permanent heat sealer is a large-scale one that uses a general-purpose power supply of 100V, and is installed in food factories, pharmaceutical factories, bread factories, confectionery factories, test rooms, etc. ing.

  Conventional heat sealers that are installed and used in factories and test rooms are heat-resistant Teflon ("Teflon" is a registered trademark; the same applies hereinafter) cloth or a linear shape whose surface is covered with a fluororesin-coated glass fiber cloth. The above material is placed on a cradle embedded with a Nichrome wire heat wire heater, and a bar-shaped film bag presser plate covered with heat-resistant Teflon cloth or fluororesin-coated glass fiber cloth on the top is isobaric The heat ray heater is energized to heat the heat ray heater, and the film material is welded by the heat to generate a seal.

  In such a large heat sealer used in a factory, there is a restriction that a part to be sealed must have the same shape as the part to be sealed must be efficiently sealed in large quantities. There is a problem that several types of heat sealers having a hot wire heater having a length corresponding to the width of the mouth must be provided.

On the other hand, in a handy heat sealer that can be used easily at home, the frequency of use is often enough, and the width of the mouth of the film bag to be sealed is not constant. In addition, a mechanism is adopted in which a heating body having a hot wire heater is placed and slid and moved (hereinafter referred to as “sliding heat sealer”).
In other words, the sliding heat sealer is the same as a large heat sealer in that the material to be sealed is sandwiched. However, the cushioning rubber mat or the like is covered with a Teflon cloth or the like, or just a newspaper, advertising paper, or magazine. Place the material to be sealed on the cradle and place a handy pressing / heating device with a linear heating element with a length of several millimeters to tens of millimeters made of nichrome wire etc. on the planned sealing surface of the film bag The side of the film bag is linearly sealed by sliding and moving while pressing.

Most of the conventional sliding heat sealers consist only of the device on the pressing side, and the pressing device has only a linear heating body, and fixes and presses both sides or one side of the film bag nearest the planned sealing site. As the linear heating element slides and moves, the film melted by heating swells in the shape of ripples and continuous folds in the direction perpendicular to the direction of transport, and Φ0.1 to 0.00. A sphere of about 5 mm is generated by beading in a bead shape.
When these phenomena occur, not only does it become a resistance and smooth sliding movement becomes impossible, but also the part that was intended to be sealed breaks in some places, the part that is not sealed, and the seal width is constant. There is a problem that a healthy and clean seal cannot be obtained.

  In addition, with a sliding heat sealer, the failure of the seal start end that starts sealing may affect the soundness of the entire seal, but the vicinity of the planned seal start location of the film bag that is the material to be sealed is fixed.・ If there is no mechanism to press, the material to be sealed will be lifted up, making it difficult to determine where to start sealing, and which part of the linear heating element with a predetermined length will be applied to the sealing start point There is also a problem that the above-mentioned rippled / continuous pleated bulge and beaded defects are more likely to occur due to the difficulty of judgment.

Further, with respect to sealing, there are complications associated with how to seal the sealed film bag.
Now consider the relationship between the film bag and the sealing method.
As shown in FIG. 12, since the cylindrical material only needs to seal the upper and lower sides of the bag, it is said to be a two-sided sealing film bag. There are many problems.
In addition, as shown in FIG. 14, there is a four-sided sealing film bag in which two flat materials are stacked and sealed on four sides. This is not a special problem with the seal itself, but the two front and back sheets are printed separately. There is another problem that two sheets must be accurately positioned and sealed.
On the other hand, as shown in FIG. 13, a single flat material is used, a predetermined printing on both sides is performed on one side, and then folded and sealed in a cylindrical shape, and further, the top and bottom are sealed, that is, the three sides are sealed. There is a three-way seal film bag.
This three-way seal method requires only one printing as described above, and since the front and back positions of the bag are uniquely determined, it is currently applied to most product bags.
However, this three-way seal has the following problems that are not seen in other types of seal film bags.

The three-side sealed film bag is folded to form a cylindrical shape, and a portion where the content is put with the seal portion interposed therebetween and a portion which is not originally necessary to put the content (hereinafter referred to as “seal end”). And are generated.
By the way, in order to increase the product value of the product, as shown in FIG. 13, the seal end portion sealed first is always arranged at the center of the back surface of the bag.
Therefore, when making a bag, the portion arranged at the center of the back side of the bag should be sealed with a total of four pieces, two of the portions that should be sealed and two of the seal ends that are not necessary for sealing. It will be inevitable.
Therefore, this four-ply area must be heated for four sheets, and if only two other seals are used properly, the four-ply part will have insufficient heat and a sufficient seal will be obtained. On the other hand, if the sealing of the four-layer overlapping portion is performed appropriately, the portions of the linear heating body other than the four-layer overlapping portion are not deprived of heat, and thus excessively in an overheated state. There is a problem that the seal is likely to be broken in the vicinity of the four-sheet overlapping portion.

  This problem is common to both large-sized permanent heat sealers and sliding-type heat sealers. While this can be dealt with by partially modifying the spring characteristics of the cradle, such a simple heat-sealer that is manually slidably moved cannot be used, and the amount of heat generated may be limited. In order to prevent the four-ply portion from becoming insufficient in heat, the linear heating element has to be slowed down, and skill is required to make a good seal.

  A heat sealer that can be used easily and easily for home use and does not require a special installation location and can be stored easily and provides a sound seal has been desired. However, for the reasons described above, it satisfies the above requirements and can withstand practical use. No heat sealer has been commercially available that provides a sound seal.

I searched the Gazette Text in the Patent Digital Library (public patent gazette) under the following conditions, but there is nothing that can be considered as applicable. "IPC" B65B51 /? AND “Summary and Claims” “Seal Sealed Blockade” AND “Summary and Claims” “Handy Battery Easy” The number of found was 8

It is an object of the present invention to provide a handy heat sealer that can be easily used at home, has a sound sealing property that can withstand practical use, and does not require a special installation place and is easy to store.

  A dry battery was adopted as the heat generating power source, and a rotary heating mechanism was adopted as a heating mechanism for the appliance that presses and heats the material to be sealed, resulting in a handy heat sealer.

  In addition, a mechanism for pressing the sealed material is provided separately from the pressing mechanism for the device that presses and heats the sealed material so that it can be attached to and detached from the device that presses and heats the sealed material. I decided to hold down.

  In addition to a device that presses and heats the material to be sealed, a cradle for receiving the material to be sealed is provided. Was provided.

  A heat sealer having a non-rotating heating mechanism as a heating mechanism for a device that presses and heats the material to be sealed is used as a device that presses and heats the material to be sealed separately from the heating mechanism. It was provided so that it could be fixed and removed, and the vicinity of the heating mechanism was pressed down.

A heat sealer having a non-rotating heating mechanism as a heating mechanism for a device that presses and heats the material to be sealed is provided with a receiving base for receiving the material to be sealed separately from the device that presses and heats the material to be sealed. The cradle for receiving the material to be sealed is provided with a roller that rotates according to the movement of the material to be sealed.

  Since the heat generating power source is a dry battery, it can be light and handy. In addition, a rotary heating mechanism is used as a heating mechanism for the appliance that presses and heats the material to be sealed. The force is only a small amount of rolling friction, and it can be used by those with less power.

  In addition, since the heating mechanism is a rotary type, the heating unit is in point contact, and thereby, a seal having an arbitrary trajectory that is not only a straight line but also a curved line can be generated as a clean seal having a uniform width.

In addition, since the heating mechanism is a rotary type, the heating unit is in point contact, so that it is easy to control the pressing force and operation speed.
As a result, with the rotary heat sealer of the present invention, it is possible to adjust the pressing force and the traveling speed with respect to the problem of the three-way seal, which was difficult even with a permanent heat sealer. It became easy.

  In addition, because it is a rotary type, it has defects such as ripples, continuous pleated bulges, beaded spheres, broken seals, unsealed parts, etc. No longer occurs.

In addition, although it is conceivable that the entire ring of the heating part is a heating element, in the present invention, an annular thing is used as the heating / heating element and is fixed to a heat-resistant / heat-insulating heat wire support. The heat efficiency was improved by reducing the heat to be generated.
This advantage is particularly important in enhancing the practicality of a handy heat sealer that uses dry batteries as a power source.

  The sliding type must always supply a large amount of power because a heat source must be supplied at the time of sealing. However, in the rotary type, the heat removed from the seal rotates and seals. Since it recovers while returning to the department, there is also an advantage that a small power supply is sufficient.

  Moreover, since it is a rotary type, it is easy to reciprocate the seal portion.

  Furthermore, a mechanism that presses the sealed material separately from the pressing mechanism of the device that presses and heats the sealed material is provided in the tool that presses and heats the sealed material, and the vicinity of the heating mechanism is pressed down to generate ripples. Preventing the formation of pleated and continuous pleated spheres and beaded spheres, it was possible to move smoothly and obtain a clean and healthy seal with a certain width.

  In addition, by pressing in the vicinity of the heating mechanism, sound sealing performance can be obtained even at the seal start end.

  In addition, since a stand for receiving the sealing material is provided separately from the device that presses and heats the sealing material, and both are integrated, the heat sealer is held with the other hand while holding the sealing material in one hand. It was possible to obtain a seal with good sealing properties.

  In addition, since the cradle for receiving the material to be sealed is provided with a roller that rotates according to the movement of the material to be sealed, a seal with even better sealing performance can be obtained and the power to carry the heat sealer can be greatly increased. It became possible to reduce.

Furthermore, a conventional sliding heat sealer having a non-rotating heating mechanism as a heating mechanism for a device that presses and heats the sealing material has a mechanism for pressing the sealing material separately from the heating mechanism. Provided so that it can be fixed and detachable to the device to be pressed and heated, and further provided with a receiving base for receiving the material to be sealed separately from the device to press and heat the material to be sealed, integrating both of them and receiving the material to be sealed Since the cradle is provided with a roller that rotates in accordance with the movement of the material to be sealed, an inexpensive handy heat sealer can be provided.

FIG. 1 shows an appearance of a handy heat sealer (hereinafter referred to as “roller heat sealer”) 10 incorporating a rotary heating mechanism 20 (FIGS. 3 and 4). In the figure, the left side shows an unused state, and the right side shows a used state.
FIG. 2 is a view showing the external appearance of the mechanism portion of the roller heat sealer with the top cover 12, the dry cell storage lid 16 and the support cover 18 removed.
FIG. 3 shows a rotary heating mechanism, and FIG. 4 shows an exploded state of the rotary heating mechanism.
1 and 2, the top cover / dry cell storage lid is attached in a direction perpendicular to the heating wheel 30 attached so as to face in the vertical direction. However, as shown in FIGS. You may attach in the same direction.

  As shown in FIG. 3, the rotary heating mechanism 20 according to the first embodiment includes a cylindrical ring-shaped heating wheel 30, a cylindrical ring-shaped power feeding wheel 40, and a cylindrical ring-shaped collecting current collector. An electric wheel 41 and a shaft 50 are included, and the shaft is configured to freely rotate inside the feeding wheel and the current collecting wheel.

As shown in FIG. 4, in the heating wheel 30, an annular heat wire ring 32, for example, a nichrome wire, is fixed to the center of the outer ring of the heat ray support wheel 31 having a heat resistant and heat insulating cylindrical ring shape. The two conducting wires 33 and 34 that are conductively connected to the counter electrode portion of the ring are conductively connected to the foil-like conductive rings 35 and 36 that are fixed to the side surfaces of the heat ray support ring.
There are two foil-shaped conductive rings fixed to the side surface of the heat ray support ring, one for power supply and one for current collection. In the example shown in the figure, they are separately attached to both sides of the side surface of the heat ray support ring. It is also possible to arrange both foil-like conductive rings (not shown). Since the heat source is interrupted at the connection portion between the hot wire ring and the conductive wire, an embedded heat transfer material 37 made of a material having good heat conductivity, heat storage property, and electrical insulation is embedded in this portion to obtain a uniform heat source. I am trying to do it.
Further, the outer surface of the annular heat wire ring is covered with a heat ray-coated wheel 38 made of a heat-resistant and insulating material cut into a cylindrical shape, for example, a Teflon cross tube.
In the example shown in the figure, two conductive wires are provided at two locations on the counter electrode portion of the hot wire ring, but they may be combined at one location.

As shown in FIG. 3, foil-like conductive wheels 45 and 46 similar to the foil-like conductive wheels 35 and 36 fixed to the side surfaces of the heat ray support wheel 31 are fixed to the side surfaces of the feeding wheel 40 and the current collecting wheel 41. In addition, a power supply lead wire 43 and a current collecting lead wire 44 are conductively connected to the foil-like conductive ring.
In the embodiment, foil-like conductive rings are used for all of the side surfaces of the heat ray support wheel and the feeding wheel / collector wheel. However, these structures are made into a slip ring type and the side surface of the heat ray support wheel is used. Alternatively, a spring-like plate-like power supply / current collection (not shown) may be used on either side of the power supply wheel / current collection wheel.

  As shown in FIG. 2, the feeding wheel 40 and the current collecting wheel 41 (FIG. 3) of the rotary heating mechanism 20 are fitted to a U-shaped support body 60, and the feeding conducting wire 43 and the collecting conducting wire 44 (FIG. 3). ) Is taken out from the outside of the support, and is electrically connected to two terminals provided on the upper surface of the support, the power feeding terminal 63 and the current collecting terminal 64.

On the other hand, as shown in FIG. 2, when the roller heat sealer 10 is pressed against the material to be sealed at the time of sealing, the helical spring 68 provided on the upper portion of the support 60 is compressed. Thus, an appropriate pressing force is applied to the material to be sealed, and the power supply spring terminal 65 is brought into contact / conduction with the power supply terminal 63 and is sent to the hot wire ring 32 of the heating wheel 30, via the current collection spring terminal 66, Returned to dry cell.
In the present embodiment, two sets of terminals 63 and 65 and 64 and 66 are provided on the upper surface of the support, but either set may be connected to a conductor.
Further, at the time of sealing, the energization display lamp 13 is turned on to indicate that it is in a heated state, and can be confirmed from the transparent plastic window 14 of the top cover 12.

  Therefore, when sealing, place the PP, PE, or aluminum vapor-deposited film bag you want to seal on a heat-insulating and heat-resistant sheet such as coated cardboard, newspaper, advertising paper, magazine, rubber mat, etc. The roller heat sealer 10 may be rotated along the planned trajectory at an appropriate speed while appropriately pressing the roller heat sealer 10.

The second embodiment shows another embodiment of the rotary heating mechanism 20 as shown in FIG. The outer side of the heat wire ring 32 of the first embodiment is covered with a heat wire partial covering wheel 39 made of a material having good heat conductivity, heat storage property, and electrical insulation, for example, magnesia.
By covering with a material having good thermal conductivity, heat storage, and electrical insulation, a more sound and uniform seal can be obtained.
In addition, what integrated the heat wire ring by wrapping with magnesia can also be used.

  Examples 3 to 6 in which a mechanism for pressing the material to be sealed is provided in the vicinity of the heating mechanism separately from the heating mechanism are shown in FIGS.

  FIG. 6 shows a pressing mechanism in the vicinity of the heating mechanism in which a holding table 80 is provided separately from the roller heat sealer 10. The roller heat sealer is detachably attached to the holding table, and the roller heat sealer slides along the rail. Example 3 is shown in FIG.

In the third embodiment, a guide 19 having a U-shaped cross section is provided on both the front and rear sides of the support 60 (FIG. 2) or the support cover 18 (FIG. 1) of the roller heat sealer 10, and the guide is provided in the groove of the upper part 81 of the sandwiching table. The rail 83 is fitted.
The clamping table 80 is composed of a clamping table upper part and a clamping table lower part 82. The clamping table upper part is configured in a frame shape having rails, and a heat-resistant and heat-insulating sheet such as Teflon cloth is attached to the top surface of the clamping table lower part. It is attached. Both are integrated by pin connection so that they can be opened and closed, and a material to be sealed is sandwiched and fixed between them.

FIG. 7 shows a fourth embodiment in which a caterpillar 85 is provided on the roller heat sealer 10 as a pressing mechanism in the vicinity of the heating mechanism, and the caterpillar is sealed by running on the upper surface of a material to be sealed (not shown).
The caterpillar is a belt with two moving wheels, and the belt is preferably a toothed belt.

  FIG. 8 shows a fifth embodiment in which a sled 87 is provided on the roller heat sealer 10 as a pressing mechanism in the vicinity of the heating mechanism, and sealing is performed by running on the upper surface of a material to be sealed (not shown).

FIG. 9 shows a sixth embodiment.
In the sixth embodiment, the roller heat sealer 10 and the cradle 95 are provided with a grip 91, and the roller heat sealer and the grip are integrated so that they can be gripped with one hand so that the heating wheel 30 and the cradle are in the same position. It is a thing.
The roller heat sealer and the grip are fixed by pins 92, and when the material to be sealed is not sandwiched, a spring 93 causes a gap between the roller heat sealer and the cradle.
In this embodiment, the grip is provided separately from the cradle. However, the grip 91 may be substituted by extending the cradle.
Furthermore, in order to integrate the roller heat sealer and the cradle, the pin structure is not used, but another structure such as a grip or a spring-like thin piece provided on the cradle is inserted into the gap provided in the roller heat sealer (illustrated) Omission), and it is also possible to divide the handy seat sealer into two parts for convenient storage.

  The seventh embodiment shown in FIG. 10 is the same as the sixth embodiment, but a roller 96 is incorporated in a cradle 95 corresponding to the cradle of the sixth embodiment.

The above description relates to an invention for a roller heat sealer having a rotary heating mechanism, which is an invention that takes advantage of the features of the rotary heating mechanism, but presses a sealed material provided in the vicinity of the heating mechanism. The mechanism that exerts a remarkable effect provides a more inexpensive handy heat sealer when applied to a conventional sliding heat sealer, although the performance is not as good as that of a roller heat sealer having a rotary heating mechanism. It turned out to be useful above.
That is, the holding table system with rail shown in Example 3 of FIG. 6, the caterpillar system shown in Example 4 of FIG. 7, the warp system shown in Example 5 of FIG. 8, and the heat sealer and cradle shown in Example 6 of FIG. 10 and a system in which a roller is provided on the cradle shown in Example 7 in FIG. 10 can be applied to a sliding heat sealer (details omitted).
FIG. 11 shows a linear heating mechanism 70 incorporating a linear heating body 71. FIG. 8 shows a state where the linear heating mechanism is applied.
In the present invention, the linear heating mechanism is manufactured so as to be compatible with the rotary heating mechanism 20 so as to be interchangeable.

  In recent years, it has become indispensable in daily life to seal a bag with the heat seal that is the subject of the present invention, and since the present invention has made it possible to easily perform this at home, the industrial applicability is It is extremely expensive.

  In addition, the heat seal that is the subject of the present invention is essential for living a healthy life, including food sanitation, because it can be stored in a sealed manner, and it can be used in various industries such as the food industry and the medical industry. Since it contributes, the industrial applicability is extremely high.

Furthermore, when the invention of the present application is commercialized, since the component parts are in many fields, it is useful in many fields of production industries.

It is a perspective view which shows a roller heat sealer. In the figure, the left figure shows the unused state, and the right figure shows the used state. It is a perspective view which shows the state which decomposed | disassembled the roller heat sealer. It is a front view which shows the rotary heating mechanism of a roller heat sealer. It is a perspective view which shows the state (Example 1) which decomposed | disassembled the rotary heating mechanism. It is a perspective view which shows the state (Example 2) which decomposed | disassembled the rotary heating mechanism. (Example 3) which is a perspective view which shows the clamping base system with a rail as a press mechanism of the vicinity of a heating mechanism. (Example 4) which is a perspective view which shows a caterpillar system as a press mechanism. (Example 5) which is a perspective view which shows a curvature method as a press mechanism. (Example 6) which is a perspective view which shows the state which integrated the heat sealer and the receiving stand. (Example 7) which is a perspective view which shows the main mechanisms in the state which provided the roller in the stand of the heat sealer. In the figure, the left figure shows the unused state, and the right figure shows the used state. It is a perspective view which shows the main structures of a linear heating mechanism. It is a perspective view which shows the state before the last seal | sticker of a two-side seal film bag. It is a perspective view which shows the state before the last seal | sticker of a three-way sealing film bag. It is a perspective view which shows the state before the final seal | sticker of a 4-way sealing film bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Roller heat sealer 60 Support body 12 Upper surface cover 63 Power supply terminal 13 Power supply indicator lamp 64 Current collection terminal 14 Transparent plastic window 65 Power supply spring terminal 16 Dry cell storage cover 66 Current collection spring terminal 18 Support body cover 68 Helical spring 19 Guide
20 Rotary heating mechanism
DESCRIPTION OF SYMBOLS 30 Heating wheel 70 Linear heating mechanism 31 Heat wire support wheel 71 Linear heating body 32 Heat wire wheel
33 Conductor (for current collection, with heating wheel) 80 Holding table 34 Conductor (for power supply, with heating wheel) 81 Upper part of clamping table 35 Foil-shaped conductive wheel (for current collection, with heating wheel) 82 Lower part of clamping table 36 Foil-shaped conductivity Ring (for power supply, with heating wheel) 83 Rail 37 Embedded heat transfer material 85 Caterpillar 38 Heat-wire-covered wheel 87 Sled 39 Heat-wire partially-covered wheel
40 Power supply wheel
41 Current collecting wheel 91 Grip 43 Feeding conductor (for collecting current, with collecting wheel) 92 Pin 44 Current collecting conductor (for feeding, with collecting wheel) 93 Spring 45 Foil-shaped conductive ring (for collecting current, with collecting wheel) 95 Receptor 46 Foil-shaped conductive ring (for feeding, with current collecting wheel) 96 Roller 50 Axis

Claims (7)

  A handy heat sealer, characterized in that a rotary heating mechanism is provided as a heating mechanism of a device for pressing and heating a material to be sealed.   The invention according to claim 1 is characterized in that a mechanism for pressing the material to be sealed is provided on the device for pressing and heating the material to be sealed separately from the pressing mechanism of the device for pressing and heating the material to be sealed. A handy heat sealer.   3. A handy heat sealer according to claim 1, wherein a receiving base for receiving the material to be sealed is provided, and the receiving base is integrated with an instrument for pressing and heating the sealing material.   4. A handy heat sealer according to claim 3, wherein a roller that rotates in accordance with the movement of the sealing material is provided on the cradle for receiving the sealing material.   In a handy heat sealer, a mechanism for pressing the sealed material separately from the pressing mechanism of the device for pressing / heating the sealed material is provided on the device for pressing / heating the sealed material. Heat sealer.   6. A handy heat sealer according to claim 5, wherein a receiving base for receiving the material to be sealed is provided, and the receiving base is integrated with an instrument for pressing and heating the sealing material. 7. A handy heat sealer according to claim 6, wherein a roller that rotates in accordance with the movement of the sealing material is provided on the cradle for receiving the sealing material.

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