CN103129779B - Sealing device and its sealing protection structure - Google Patents

Abstract

The invention discloses a sealing device and a sealing protection structure thereof, in particular to a sealing device which has wide application range and can prevent packaging materials from being broken at a sealing line and a sealing protection structure thereof. The sealing device comprises a pair of seat bodies, wherein each seat body is respectively provided with an electric heating wire, each electric heating wire is respectively covered with a first sealing protection belt, and a second sealing protection belt is respectively covered outside each first sealing protection belt. One of the first sealing protection belt and the second sealing protection belt is provided with a plurality of openings. The sealing device and the sealing protection structure thereof can prevent the packaging material from being broken.

Description

Sealing device and its sealing protection structure

technical field

The invention relates to a sealing device and its sealing protection structure, in particular to a sealing device and its sealing protection structure which have a wide application range and can prevent packaging materials from breaking at the sealing line.

Background technique

Please refer to FIG. 1A to FIG. 2C , which are a schematic diagram, a partial enlarged view and a side view of each step during the operation of the existing sealing device, wherein FIG. 1D is a partial enlarged view of area A in FIG. 1C . As shown in the figure, the existing sealing device 20 includes a pair of bases 22, and each base 22 is provided with a heating wire 24 at the opposite position, and each heating wire 24 is covered with a sealing protection tape 26 to prevent The packaging bag 10 sticks to the heating wire 24 due to melting during sealing.

When the existing sealing device 20 is in operation, firstly, the two sides or the upper and lower sides of the packaging bag 10 filled with goods 15 are pressed together, and the packaging bag 10 is folded according to the folding line 12 . After the two bases 22 are pressed together, the temperature of the heating wire 24 can melt the adhesive film of the packaging bag 10 to form the sealing line 14, as shown in FIGS. 1A to 1C and 2A to 2C.

After the packaging bag 10 is folded, a four-layer adhesive film area 16 and a second-layer adhesive film area 18 will be formed at the sealed position. The sealing conditions required for the four-layer adhesive film and the two-layer adhesive film (such as the temperature of the heating wire and the pressing force of the seat body) are different, and the sealing conditions suitable for the four-layer adhesive film may make the second-layer adhesive film excessive. The melting, coupled with the tension 17 on both sides of the packaging bag 10, causes a tear 19 in the packaging bag 10 at the second layer of adhesive film area 18 of the sealing line 14, as shown in FIG. 1D.

Contents of the invention

The object of the present invention is to provide a sealing device and its sealing protection structure, which can prevent the packaging material from breaking.

In order to achieve the above object, the present invention provides a sealing device, comprising: a pair of seats, arranged opposite to each other; a pair of heating wires, respectively arranged at the opposite positions of each seat; On the corresponding heating wire; a pair of second sealing protection tapes are respectively covered on the corresponding first sealing protection tapes; wherein, the pair of first sealing protection tapes and the pair of second sealing protection tapes One has multiple openings.

In an embodiment of the above sealing device, wherein the plurality of openings are located on the pair of first sealing protection strips.

In an embodiment of the above-mentioned sealing device, the plurality of openings are equidistantly distributed on the position of the heating wire.

According to an embodiment of the sealing device, the plurality of openings are located on the pair of second sealing protection strips.

According to an embodiment of the above sealing device, the pair of first sealing protection strips and the pair of second sealing protection strips are respectively made of a high temperature resistant material.

The invention provides a sealing protection structure of a sealing device, which includes: a first (inner layer) sealing protection tape, used to cover a heating wire of the sealing device; and a second (outer layer) sealing A sealing protection tape is used to cover the first sealing protection tape; wherein, the first sealing protection tape and the second sealing protection tape form a plurality of single-layer protection areas spaced apart from each other outside the heating wire and a plurality of Double conservation area.

According to an embodiment of the above seal protection structure, the first seal protection strip has a plurality of openings.

According to an embodiment of the sealing protection structure above, the plurality of openings are equidistantly distributed on the heating wire.

According to an embodiment of the above seal protection structure, the second seal protection strip has a plurality of openings.

According to an embodiment of the sealing protection structure above, the plurality of openings are equidistantly distributed on the heating wire.

The invention relates to a sealing device and its sealing protection structure, in particular to a sealing device and its sealing protection structure which have a wide application range and can prevent packaging materials from breaking at the sealing line.

The sealing device of the present invention uses two sealing protection strips to form a single-layer protection area and a double-layer protection area, and can form an intermittent sealing line, which can meet a wide range of sealing requirements and prevent packaging materials from breaking.

The sealing protection structure of the sealing device of the present invention forms a single-layer protection area and a double-layer protection area, and can form intermittent sealing lines during sealing.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

1A to 1D are schematic diagrams and partial enlarged views of various steps in the operation of the existing sealing device.

Fig. 2A to Fig. 2C are side views of various steps during operation of the conventional sealing device.

Fig. 3 is a schematic diagram of an embodiment of the sealing device of the present invention.

FIG. 4 is an exploded view of the embodiment shown in FIG. 3 .

FIG. 5 is a front view of the embodiment shown in FIG. 3 .

FIG. 6 is a partially enlarged view of the embodiment shown in FIG. 3 .

Fig. 7 is a partial enlarged view of the sealing device of the present invention after sealing.

Among them, reference signs:

10 Packaging bag 12 Folding line

14 Sealed Line 15 Goods

16 Four-layer film area 17 Tension

18 Second-layer adhesive film area

20 Sealing device 22 Seat body

24 Heating wire 26 Sealing protection tape

30 Sealing device 32 Seat body

34 Heating wire 36 First seal protection tape

361 Openings 363 Single-layer protection zone

365 Double protection zone 38 Second sealing protection belt

40 Packaging bag 42 Folding line

44 Sealing Line 441 Deep Fusion Zone

443 shallow melting zone

Detailed ways

Please refer to FIG. 3 to FIG. 7, which are schematic diagrams, exploded views, front views and partial enlarged views of an embodiment of the sealing device of the present invention, wherein FIG. 6 is a partial enlarged view of area B in FIG. 5, and FIG. Partial enlarged view of region C in middle. As shown in the figure, the sealing device 30 of the present invention includes: a pair of bases 32 , a pair of heating wires 34 , a pair of first sealing protection strips 36 and a pair of second sealing protection strips 38 .

Wherein, the two bases 32 are arranged facing each other, and the heating wires 34 are respectively arranged at the positions where the bases 32 face each other. Each first sealing protection tape 36 is respectively covered on the corresponding heating wire 34; each second sealing protection tape 38 is respectively covering on the corresponding first sealing protection tape. In the present invention, a plurality of openings 361 may be provided on the first sealing protection strip 36 or the second sealing protection strip 38 . As shown in Figure 3 to Figure 5. In this embodiment, the first protection strip 36 is provided with a plurality of openings 361 as an example for illustration. If the plurality of openings 361 are provided on the second protection strip 38 , the same effect can also be achieved.

In one embodiment of the present invention, after the first protective tape 36 and the second protective tape 38 are respectively covered on the heating wire 34, since the first protective tape 36 has a plurality of openings 361, the A plurality of single-layer protection areas 363 and a plurality of double-layer protection areas 365 are formed above the heating wire 34 together with the second wire-sealing protection tape 38 , as shown in FIG. 6 .

When the heating wire 34 heats the packaging bag 40, due to the different thermal barrier conditions of the single-layer protection area 363 and the double-layer protection area 365, when the sealing line 44 will be formed on the packaging bag 40, it will be at the corresponding single-layer protection area 363. A plurality of deep melting regions 441 are formed, and a plurality of shallow melting regions 443 are formed corresponding to the double-layer protection region 365 , as shown in FIG. 7 .

Utilizing the sealing device and its sealing protection structure of the present invention, the temperature of the heating wire 34 and the pressing force of the seat body 32 can be adjusted, so that the deep melting zone 441 meets the sealing conditions of four layers of adhesive film, and the shallow melting zone 443 It meets the sealing conditions of the two-layer adhesive film. In this way, in addition to forming an effective sealing line 44 , the adhesive film at the sealing line 44 will not be torn due to the tension on both sides, resulting in a crack as in the prior art.

In addition, there is a folding line 42 on the packaging bag 40 , and the packaging bag 40 can be folded according to the folding line 42 during the pressing operation.

In an embodiment of the present invention, the plurality of openings 361 are equidistantly distributed on the positions of the heating wires on the first sealing protection tape 36 .

In an embodiment of the present invention, a plurality of openings 361 may also be provided on the second protective sealing tape 38, so as to form a plurality of single-layer protection areas 363 and a plurality of double-layer protection areas with the first protective sealing tape 36. District 365.

In an embodiment of the present invention, the plurality of openings 361 are equally spaced on the positions of the heating wires on the second sealing protection tape 38 .

In an embodiment of the present invention, the first sealing protection tape and the second sealing protection tape are respectively made of a high temperature resistant material.

According to the above description, it can be seen that the sealing device and its sealing protection structure of the present invention can be applied to a wider range of sealing conditions and packaging bag materials, and can prevent the packaging material from being broken due to excessive melting and tension at the sealing line.

Certainly, the present invention also can have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (10)

1. seal a device, comprise: the pedestal of pair of opposing; And a pair heating wire, be arranged at the position that each pedestal is relative respectively; It is characterized in that, more comprise:

Seal boundary belt a pair first, be covered on corresponding heating wire respectively; And

Seal boundary belt a pair second, be covered in correspondence respectively first seals on boundary belt;

Wherein, this seals boundary belt to first and this has multiple perforate to the second one of them sealing boundary belt.

2. according to claim 1ly seal device, it is characterized in that, the plurality of perforate is positioned at this and seals boundary belt to first.

3. according to claim 1ly seal device, it is characterized in that, the plurality of perforate is equally distributed on the position of this heating wire.

4. according to claim 1ly seal device, it is characterized in that, the plurality of perforate is positioned at this and seals boundary belt to second.

5. according to claim 1ly seal device, it is characterized in that, this seals boundary belt to first and this is sealed boundary belt to second and is respectively a high temperature material.

6. a protection of sealing of sealing device constructs, and it is characterized in that, includes:

One first seals boundary belt, in order to cover the heating wire that this seals device; And

One second seals boundary belt, first seals boundary belt in order to cover this;

Wherein, this first seals boundary belt and this second is sealed boundary belt and form spaced multiple single ply protective district and multiple double shielding district outward in this heating wire.

7. according to claim 6ly seal protection structure, it is characterized in that, this first is sealed boundary belt and has multiple perforate.

8. according to claim 7 sealing protects structure, and it is characterized in that, the plurality of perforate is equally distributed on this heating wire.

9. according to claim 6ly seal protection structure, it is characterized in that, this second is sealed boundary belt and has multiple perforate.

10. according to claim 9 sealing protects structure, and it is characterized in that, the plurality of perforate is equally distributed on this heating wire.