JP2010070207A - Handy heat sealer and sealing method using handy heat sealer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handy heat sealer that has wide versatility for wrapping objects, has a high degree of freedom in operation, and enables welding and fusion cutting by a single operation, and also to provide a sealing method using the handy heat sealer. <P>SOLUTION: The handy heat sealer includes: a rectangular base 2 with a handle provided on one face; a heat-resistant resin 12a for a welding line in which a welding electric heat wire 11a is wired in the lengthwise direction of the sealer; and a heat-resistant resin 12b for a fusion-cutting line in which a fusion-cutting electric heat wire 11b thinner than the welding electric heat wire is wired substantially in parallel with the welding electric heat wire 11a in the lengthwise direction. A cushioning material 14a for a welding line is provided between the heat-resistant resin 12a for a welding line and the base 2. In addition, a cushion material 14b for a fusion-cutting line is provided between the heat-resistant resin 12b for a fusion-cutting line and the base 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a handy heat sealer that welds and cuts an opened insertion port of a resin package containing a packaged product, and a sealing method using the handy heat sealer.

  As a device for welding an opened insertion port of a resin package containing a packaged product, a one-handed operation type heat sealer is known (for example, see Patent Document 1). The device disclosed in Patent Document 1 is composed of a rotatable upper lever similar to a stapler structure and a one-handed operation type heat sealer having a seal cradle. The cradle has one heating wire, and has a configuration in which an adhesive tape for temporarily fixing the resin packaging is stuck substantially parallel to the heating wire.

Japanese Patent Laid-Open No. 11-105838 (page 6, FIG. 1)

  As the conventional handheld heat sealer described in Patent Document 1, a one-handed operation type heat sealer similar to the structure of a stapler has been used. However, since this one-handed operation type heat sealer is a stationary type, it is necessary to place a resin package containing the packaged product on a seal cradle, which limits the type of packaged product. Moreover, when a package becomes large, it is necessary to move after peeling a package from an adhesive tape, and workability | operativity falls remarkably. In addition, when the packaged product is transferred onto the seal cradle, there is a problem that the packaged product slides out of the resin package.

  In addition, in the hand-held heat sealer, there is a problem that it is difficult to uniformly contact the heating wire with the resin packaging because of manual work by the worker.

  Therefore, the present invention was made to solve the above problems, a versatile packaging object, a high degree of freedom of work, and a handy heat sealer that enables welding and fusing in one operation, It is another object of the present invention to provide a sealing method using a handy heat sealer.

In order to solve the above problems, the handheld heat sealer of the present invention is
A rectangular base with a handle on one side;
A heat-resistant resin for welding wires in which heating wires are wired in the longitudinal direction;
A heat-resistant resin for fusing wire, which is arranged substantially in parallel with the welding heating wire, and a fusing heating wire thinner than the welding heating wire is wired in the longitudinal direction,
One surface is bonded to the welding wire heat-resistant resin, and the other surface is bonded to the base, and the welding wire cushioning material gives an elastic force between the welding wire heat-resistant resin and the base; ,
One surface is bonded to the fusing wire heat-resistant resin, and the other surface is bonded to the base, and the fusing wire cushioning material gives an elastic force between the fusing wire heat-resistant resin and the base; ,
It is characterized by having.

  According to the present invention, since it is not a stationary type, it is possible to move the seal part freely, and since it is a handy type heat sealer having a seal part for welding and fusing, the versatility of packaging objects is wide, The degree of freedom is high, and welding and fusing can be performed in one operation.

Embodiments of the present invention will be described below.
FIG. 1 is an overview of a handheld heat sealer according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration of the handheld heat sealer viewed from the lateral direction. FIG. 3 is a diagram illustrating a configuration of the control unit 21 that controls the handheld heat sealer.

  As shown in FIG. 1, the handheld heat sealer 1 includes a hollow aluminum material 2 serving as a base, a handle 3, a handle support material 4, a switch 5, a signal wire 6, a welding heating wire 11 a, a fusing heating wire 11 b, Welding wire heat resistant resin 12a, fusing wire heat resistant resin 12b, welding wire fixing screw 13a for welding wire fixing screw 13a, fusing wire heating wire 11b fusing wire fixing screw 13b, welding wire cushioning material 14a, for fusing wire A cushioning material 14b, a welding wire electric cord 15a, a fusing wire electric cord 15b, and the like are provided.

  The base of the rectangular parallelepiped on one side of the hand-held heat sealer 1 is constituted by a hollow aluminum material 2 having a longer side than the width for sealing the resin packaging, and there is a handle via a handle support 4. 3 and a switch 5 are attached. The welding wire heat-resistant resin 12a and the fusing wire heat-resistant resin 12b provided on the opposite side of the handle 3 of the hollow aluminum material 2 are respectively wired with a welding heating wire 11a and a fusing heating wire 11b in the longitudinal direction. The welding heating wire 11a and the fusing wire 11b are attached and fixed by left and right welding wire fixing screws 13a and fusing wire fixing screws 13b. The size in which the heat-resistant resin for weld line 12a and the heat-resistant resin for melt line 12b are arranged substantially in parallel is substantially the same as the vertical / horizontal length of the hollow aluminum material 2, and forms the outside of the handheld heat sealer 1. .

  The welding heating wire 11a has, for example, a width of 2.5 mm and a thickness of 0.5 mm. Moreover, the heating wire 11b for fusing is a round heating wire with a diameter of 0.8 mm, for example. Accordingly, the fusing heating wire 11b is thinner than the welding heating wire 11a. Thus, since two heating wire thicknesses differ, it cannot contact with resin-made packaging with the same pressure.

  Therefore, as a cushion material independent of each heating wire, the welding wire cushion material 14a is bonded to the hollow aluminum material 2 on the base of the welding wire heat-resistant resin 12a to which the welding heating wire 11a is attached. Yes. In addition, a fusing wire cushioning material 14b is bonded to the hollow aluminum material 2 on the base of the fusing wire heat resistant resin 12b to which the fusing wire 11b is attached. The welded wire cushion material 14a has one surface bonded to the heat-resistant resin 11a for welded wire and the other surface bonded to the hollow aluminum material 2, so that the heat-resistant resin 11a for welded wire and the hollow aluminum material 2 are between them. Elastic force can be applied. Further, the fusing wire cushioning material 14b has one surface bonded to the fusing wire heat resistant resin 11b and the other surface bonded to the hollow aluminum material 2, so that the fusing wire heat resistant resin 11b and the hollow aluminum material 2 Elastic force can be given between them. Thus, the welding heating wire 11a and the fusing heating wire 11b are in contact with the resin packaging independently, thereby making it possible to uniformly contact the resin packaging with the same pressure.

  As shown in FIG. 2, the welding heating wire 11a is supplied with power from a control unit which will be described later via a welding wire fixing screw 13a and a welding wire electric cord 15a. Similarly, power is supplied to the fusing heating wire 11b from the controller via a fusing wire fixing screw 13b and a fusing wire electric cord 15b. Further, ON / OFF of power supply is operated by a switch 5 of the handle 3 at the time of fusing and welding described later. Further, as shown in FIG. 2, a welding wire in which a welding wire cushioning material 14a and a welding wire cushioning material 14b are bonded to the hollow aluminum material 2, and a welding heating wire 11a is further wired to the welding wire cushioning material 14a. The heat-resistant resin 11a for bonding and the heat-resistant resin 11b for fusing wire in which the heating wire 11b for fusing is wired to the cushioning material 14b for fusing wire are bonded to form the rectangular hand-held heat sealer 1.

A control unit 21 shown in FIG. 3 is externally attached to the handheld heat sealer 1.
The controller 21 includes a welding wire connection terminal 22a for connecting the welding wire electric cord 15a, a welding wire connection terminal 22b for connecting the welding wire electric cord 15b, and a signal line terminal for connecting the signal wire 6 of the switch 5. 23, a welding line timer 24a, a fusing line timer 24b, a key switch unit 25, a display 26, and the like.

  Then, the welding time and the fusing time are set in the welding wire timer 24 a and the fusing wire timer 24 b using the key switch unit 25. For example, the timer setting shown on the lower side of FIG. 3 is performed according to the thickness and material of the resin packaging. That is, when the thickness of the resin packaging is t1, the time a1 is set as the set time T1 of the welding wire timer 24a, and the time b1 is set as the set time T2 of the welding wire timer 24b. Similarly, when the thickness of the resin packaging is t2, the time a2 is set for the set time T1, the time b2 is set for the set time T2, and when the thickness of the resin packaging is t3, the set time T1 is reached. Is set to time a3, and set time T2 is set to time b3. The display 26 displays the setting status of the welding line timer 24a and the fusing line timer 24b.

  The control unit 21 set in this way is connected to the handheld heat sealer 1 via the welding wire electric cord 15 a, the fusing wire electric cord 15 b, and the signal line 6, and according to the conditions set in the control unit 21 The mold heat sealer 1 is electrically controlled.

  That is, when the switch 5 is pressed, the signal is output to the control unit 21 via the signal line 6. When receiving the input of the switch signal, the control unit 21 energizes the welding heating wire 11a in accordance with the time T1 preset in the welding wire timer 24a, and welds the resin packaging. Thereafter, electricity is passed through the fusing heating wire 11b in accordance with the time T2 preset in the fusing wire timer 24b, and the resin packaging is fused.

  If the resin packaging cannot be welded or cut at the preset times T1 and T2, the resin package is welded and cut by keeping the switch 5 extended for an appropriate time. It is possible.

Next, the sealing process using the handheld heat sealer 1 will be described.
Usually, the components used, such as a workbench that performs a sealing process, resin packaging, and heating wires, are general industrial products, and have unevenness of the workbench, product thickness variations, and the like. In addition, since the operator handles the handheld heat sealer 1, it is difficult to always press the work table in the vertical direction so that the resin packaging and the heating wire are uniformly contacted on the work table.

  Further, when the target resin packaging is large, the work table is also large, and the variation in thickness becomes large, so that it becomes more difficult to be evenly contacted.

  In the handheld heat sealer 1 of the present embodiment, the weld line cushion layer 14a and the melt line cushion layer 14b each independently absorb and uniformize various variations and non-uniformity of contact due to the direction in which the force is applied. By doing so, the problem of contactability can be solved, so that two heating wires of the welding heating wire 11a and the fusing heating wire 11b having different thicknesses (thicknesses) can be used.

  When the package 32 is smaller than the size of the resin package 31 and the package 32 moves in the resin package 31, the resin package is sealed in the sealing step 1 as shown in FIG. After the width direction of the resin packaging 31 is reduced by welding and cutting in the direction of 90 degrees with respect to the opening 33 of the 31, the opening of the resin packaging 31 is adjusted to the size of the package 32 in the sealing step 2. It welds and cuts in parallel with the portion 33. Thereby, the magnitude | size of the resin packaging 31 can be sealed according to the packaged goods 32. FIG.

  Also, as shown in FIG. 4 (b), for a non-straight line such as when the packaged product 32 is round, the corner is inclined 45 degrees in the sealing step 3 after welding and cutting in the 90 degree direction. After the welding and cutting in the direction, the sealing is finally performed according to the opening 33.

  According to the handy heat sealer according to the embodiment, the resin packaging and each heating wire are uniformly contacted by the welding heating wire 11a and the fusing heating wire 11b having the independent cushion structure as described above, and are welded by heating. And it is possible to melt and blow in one operation.

  By improving the contact property with the resin packaging even in the handy type, the versatility of the packaged product and the size of the resin packaging is widened by taking advantage of the handy type. In addition, the positional relationship between the resin packaging and the seal portion is less restricted, and it is possible to weld and cut the seal portion in a free direction with respect to the resin packaging.

  Needless to say, the present invention is limited to the embodiment described above, and the design can be changed without departing from the gist of the present invention.

  For example, the handle support member 4 may have a pantograph type multi-point support structure as shown in FIG. With this structure, the force applied to the handle 3 can be applied to the base 2 in a uniformly dispersed manner on the base 2, and the welding heating wire 11a and the fusing heating wire 11b are attached to the resin packaging 31. Can be evenly contacted. This is particularly effective in a handy heat sealer having a long length for welding and cutting.

  In addition, the heat of the welding heating wire 11a and the fusing heating wire 11b can be transferred to the resin packaging 31, and the heat of each heating wire does not cause a change in characteristics. You can cover it. For example, as shown in FIG. 6, by using a heat-resistant fluororesin sheet 40 having a thickness of 0.5 mm or less, covering the welding heating wire 11a and the fusing heating wire 11b, the resin product melted during welding or fusing This is effective in that the packaging 31 can be prevented from adhering to the welding heating wire 11a and the fusing heating wire 11b.

It is a general-view figure of the handy type heat sealer concerning the embodiment of the present invention. It is a figure which shows the structure which looked at the handy type heat sealer which concerns on embodiment of this invention from the horizontal direction. It is a figure which shows the structure of the control part which controls the handy type heat sealer which concerns on embodiment of this invention. It is an example which shows the positional relationship of the handy-type heat sealer and resin packaging in a sealing process. It is a general-view figure of the pantograph type handle support material in a handy type heat sealer. It is a general-view figure of the example of coating | cover of the heat resistant fluororesin sheet | seat in a handy type heat sealer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Handy type heat sealer 2 Base 3 Handle 4 Handle support material 5 Switch 6 Switch wire 11a Heating wire 11b Heating wire for welding 12a Heat resistant resin for welding wire 12b Heat resistant resin for welding wire 13a Fixing screw for welding wire 13b Fusing wire Fixing screw 14a Cushion layer for welding wire 14b Cushion layer for welding wire 15a Electric cord for welding wire 15b Electric cord for welding wire 21 Control unit 22 Connection terminal for welding wire 22 Connection terminal for welding wire 23 Signal wire terminal 24 For welding wire Timer 24 Fusing line timer 25 Key switch 26 Display 31 Plastic packaging 32 Packaged product 33 Opening 40 Heat resistant fluororesin sheet

Claims (4)

A rectangular base with a handle on one side;
A heat-resistant resin for welding wires in which a heating wire is wired in the longitudinal direction;
A heat-resistant resin for fusing wire, which is arranged substantially in parallel with the welding heating wire, and a fusing heating wire thinner than the welding heating wire is wired in the longitudinal direction;
One surface is bonded to the welding wire heat-resistant resin, the other surface is bonded to the base, and the welding wire cushioning material gives an elastic force between the welding wire heat-resistant resin and the base; ,
One surface is bonded to the fusing wire heat-resistant resin, the other surface is bonded to the base, and the fusing wire cushioning material gives an elastic force between the fusing wire heat-resistant resin and the base; ,
A handy heat sealer characterized by comprising: A control unit for supplying a predetermined power to the welding heating wire and the fusing heating wire is externally attached,
The handy heat sealer according to claim 1, wherein a switch for switching ON / OFF of the power supply is attached to the handle.   The said control part is provided with the welding timer by which the energization time of the said heating wire is set, and the fusing timer by which the energization time of the said heating wire is set. 2. A handy heat sealer according to 2.   Using the handheld heat sealer according to any one of claims 1 to 3, after welding and fusing so as to reduce the width direction of the resin packaging, the opening of the resin packaging according to the size of the packaged product A sealing method using a hand-held heat sealer characterized by welding and cutting the part.

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