KR200385535Y1 - Manufacturing device of envelope with sealing zone and envelope made by thereof - Google Patents

Abstract

The present invention relates to an envelope manufacturing apparatus having a sealing region, and provides an envelope manufacturing apparatus having a sealing region of a predetermined width so as to minimize deformation of the envelope's outline without easily breaking the edge portion by an external force. That is, the present invention provides a sheet conveying means for moving at least one envelope sheet provided by at least one reel at a predetermined speed, and a built-in heating means of the envelope sheet sequentially moving by a predetermined length unit by the sheet conveying means. And a heat fusion portion for periodically sealing the end portions to form a sealing region of a predetermined width, and a cutting portion for cutting the center portion between the sealing regions and separating the envelope sheet into individual envelopes. In this case, the sealing region formed in the thermal fusion of the thermal fusion portion may be formed of a plurality of suture lines or a suture band of a predetermined width.

Description

Manufacturing device of envelope with sealing zone and envelope made by

The present invention relates to a synthetic resin bag manufacturing apparatus, and more particularly to a bag manufacturing apparatus having a sealing area of a predetermined width at the edge portion.

Synthetic resin bags (hereinafter, abbreviated as "envelopes" unless otherwise specified) are widely used because they have a high tensile force and are easily cut off from the outside when sealed.

As a device for producing an envelope using such a synthetic resin film, a three-way device and a sealing device are generally used.

First, an envelope manufactured by using a three-way device will be described. The synthetic resin used to make an envelope by the three-way device is a triple or quadratic laminated material having a high melting point (for example, polyester, nylon and / or aluminum thin film). After repeated heating and cooling two to three times in the heater and cooler. As a result, the film is fused.

However, such a three-way bag manufacturing method is complicated manufacturing process and high manufacturing cost, it requires a higher sealing than the manufacture of a general packaging bag or to remove the influence of the electromagnetic field through a special purpose (for example, aluminum thin film component) ) Is used for

Next, a method of manufacturing an envelope using a sealing apparatus (hereinafter referred to as an envelope manufacturing apparatus) will be described with reference to FIGS. 11 and 12. Here, Figure 11 shows the step of fusion of the envelope by the bag manufacturing apparatus according to the prior art, Figure 12 shows the fused state of the bag according to the prior art.

In general, an envelope manufactured by an envelope manufacturing apparatus can be obtained by fusion of a film having a low melting point (for example, polyethylene or polypropylene resin) by instantaneous fusion using a heated blade 30 and by pulling one end.

First, the rolls of the first sheet 10 and the second sheet 12 are transported to a place where the blade 30 is located via a conveyor belt or the like.

At this time, the blade 30 has a heating wire inserted therein, the blade 30 is heated to below the melting point of the synthetic resin by applying power.

Thereafter, the blade 30 presses the first sheet 10 and the second sheet 12, whereby the first sheet 10 and the second sheet 12 are melted and fused together. At this time, the blade 30 has a predetermined size by fusion welding the first sheet 10 and the second sheet 12 while periodically moving to the first sheet 10 and the second sheet 12 moving. Allow to be made into an envelope.

The state at this time is shown in FIG.

As shown in FIG. 12, the first sheet 10 and the second sheet 12 are fused and compressed by the blade 30, thereby becoming the envelope sheet 20.

Thereafter, when the envelope member 20 is pulled from the other end of the portion fused and compressed by the blade 30, the envelope sheet 20 is separated from the first sheet 10 and the second sheet 12 to form an envelope. do. The state at this time is shown in FIG.

13 is a perspective view of an envelope made according to the prior art.

However, as shown in FIG. 13, the envelope manufactured by the bag manufacturing apparatus according to the prior art has a very narrow width (a) of the seam 22 of 0.2 to 0.3mm because the sheets are fused by the blade 30. Is formed.

Therefore, there is a problem in that the suture line 22 is easily broken by a weak impact or pulling, so that the function of the bag called accommodating the article cannot be fully performed.

In particular, when the sheets are doubled, the sutures are more easily broken.

In addition, when the article to be shipped requires attention in handling, there is a disadvantage in that packaging is cumbersome such that the article is first packaged in a film formed of an airbag or a foamed resin and then inserted into a shipping bag.

In this regard, the present invention is proposed to solve the conventional problems as described above, and an object of the present invention is to provide an edge of an envelope so as to minimize deformation of the envelope without being easily damaged by an external force. SUMMARY OF THE INVENTION Provided is a bag manufacturing apparatus having a firm seal that can seal a portion securely, and a bag manufactured therefrom.

In addition, as a series of processes in a single system can form not only a single envelope sheet, but also additional films such as air vinyl film or foamed film, thereby providing an envelope manufacturing apparatus having a rigid seal for various uses without a complicated process, and an envelope manufactured therefrom. There is.

In order to achieve the above object, the bag manufacturing apparatus according to the present invention. The end portion is periodically circulated by sheet conveying means for moving the envelope sheet provided in at least one or more reels at a predetermined speed, and in-built heating means of the envelope sheet sequentially moving by a predetermined length unit by the sheet conveying means. It may include a heat-sealed portion that is heat-sealed to form a sealing area of a predetermined width, and a cutting portion for cutting the center portion between the sealing area to separate the envelope sheet into individual bags.

The bag manufacturing apparatus of the present invention includes a lower base plate positioned below the envelope sheet, and an upper base plate positioned above the envelope sheet to move relative to the lower base plate. Removably coupled to the upper base plate may include a heat-sealing zone to be engaged with the lower base plate while forming a sealing area in the envelope sheet while moving.

In the heat-sealing zone according to the present invention, a plurality of heat-sealing lines may protrude from a lower end thereof so that a sealing area in which a plurality of seaming lines are formed in an envelope is formed.

In addition, the heat-sealing band according to the present invention may be formed with a heat-sealing band of a predetermined width at the lower end portion so that the sealing area is formed in the bag with a sealing band of a predetermined width.

The predetermined width of the heat-sealing band of the present invention may be 1 to 80mm.

The sheet conveying means according to the present invention includes an eccentric roller which is installed between the heat-sealed portion and the cut portion to move the envelope sheet having the seam line toward the cut portion, and a drive motor to rotate the eccentric roller, wherein the cut portion Is a cutting blade for separating the envelope sheet into individual envelopes by engaging a base cutting plate disposed below the envelope sheet moved by the eccentric roller and an upper portion of the base cutting plate to the edge of the base cutting plate. It may include.

The reel according to the present invention includes an envelope fabric and a reel providing an additional film, and the envelope sheet may be adhered to the envelope fabric on the outer side of the additional film.

Another embodiment according to the present invention includes an envelope having a sealing area by the bag manufacturing apparatus having the sealing area according to the present invention described above.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

Meanwhile, in the present invention, the additional film 115 may be used, and the additional film 115 may be used as a material suitable for the characteristics of the article to be accommodated in the bag such as an air vinyl film or a foamed resin film.

 Hereinafter, the additional film 115 will be described as an air vinyl film 115 for technical convenience.

In addition, in the present invention, the additional film 115 may be used as needed, and a single envelope may be formed only by using the original fabric. Hereinafter, the additional film 115 will be described as an example. In the case of not using, steps such as encapsulating the fabric and the additional film on each of the two reels are omitted.

1 is a block diagram showing an apparatus 200 for manufacturing an envelope having multiple seams according to an embodiment of the present invention. FIG. 2 is a schematic side view of the bag manufacturing apparatus 200 of FIG. 1. 3 is a perspective view showing the folded envelope sheet 116 through the Fuji feeder 156 of FIG.

1 to 3, the bag manufacturing apparatus 200 according to an embodiment of the present invention is combined with the air vinyl film 115 to the bag fabric 113 is an automatic bag excellent in impact, waterproof and moisture proof As a sealing device that can be manufactured as a reel (112, 114), the lamination portion 130, the folded portion 140, the adhesive portion 150, heat providing the bag fabric 113 and the air vinyl film 115, respectively It is configured to include a fusion unit 170 and the cutting unit 180. At this time, the envelope fabric 113 and the air vinyl film 115 are provided in a state wound on the reels 112 and 114, respectively, the envelope fabric 113 and the air vinyl film 115 provided from the reels 112 and 114 are The sheet conveying means 120 including the eccentric roller 126 is sequentially transferred to the lamination part 130, the folding part 140, the heat fusion part 170, and the cutting part 180.

In particular, the heat-sealed portion 170 by forming a plurality of seams around the edge of the envelope, it is possible to suppress the edge portion is easily damaged by the external force of the manufactured envelope, it is possible to minimize the deformation of the envelope appearance.

Referring to the bag manufacturing apparatus 200 according to an embodiment of the present invention in detail, the envelope fabric providing reel 112 and the air vinyl film providing reel 114 are respectively installed on the fabric hanger 111, fabric hanger 111 ) Automatically adjusts the tension to provide the subtraction of the length of the bag fabric 113 and the air vinyl film 115.

The stacking unit 130 is a portion of laminating the envelope fabric 113 and the air vinyl film 115 provided in each of the reels 112 and 114 in one sheet form, and the envelope fabric 113 and air using ultrasonic waves. The vinyl film 115 is thermally bonded. Hereinafter, the laminated envelope fabric 113 and the air vinyl film 115 are referred to as an envelope sheet 116. That is, the lamination unit 130 applies ultrasonic waves to the pair of metal rollers 132 and the metal rollers 132 for advancing the bag fabric 113 and the air vinyl film 115 provided from the reels 112 and 114. It includes an ultrasonic generator (not shown) for heating the metal roller 132 to a predetermined temperature, the envelope fabric 113 and the air vinyl film 115 passing through the metal roller 132 heated to a predetermined temperature The thermal bonding is performed to form the envelope sheet 116.

The folded portion 140 is a portion that folds in half so that the envelope sheet 116 passed through the lamination portion 130 can form an envelope. In this case, a portion located above the folded envelope sheet 116 is called a first sheet 117, and a portion positioned below the first sheet 117 is called a second sheet 118. Of course, the foldable portion 140 folds the envelope sheet 116 so that the air vinyl film 115 can be located inside.

The adhesive part 150 encapsulates the opening part 116a of the envelope after storing an object through the portion corresponding to the opening part 116a of the envelope to the envelope sheet 116 folded in half. To form an adhesive layer 153 on the substrate. The opening portion 116a of the envelope becomes a portion facing the folded portion of the envelope sheet 116, and an adhesive layer 153 is formed on the portion of the second sheet 118 of the opening portion 116a. The adhesive part 150 is attached to the adhesive sprayer 152 for spraying the adhesive to the upper end of the opening portion 116a of the second sheet passing through the folded portion 140 and the envelope sheet 116 passing through the adhesive sprayer 152. And a dryer 154 for blowing hot air to dry the sprayed adhesive. In this case, a liquid or solid adhesive may be used as the adhesive sprayed on the adhesive injector 152. When using a solid adhesive, the adhesive injector 152 heats and melts the solid adhesive to spray on the upper end of the opening 116a of the second sheet to form the adhesive layer 153.

Meanwhile, in order to prevent the adhesive layer 153 of the envelope sheet 116 from being contaminated, the adhesive part 150 may protect the portion where the adhesive layer 153 is formed after the adhesive layer 153 is formed. It further includes a Fuji feeder 156 to supply and attach. At this time, the Fuji 158 is provided through the reel 157 on which the Fuji 158 is wound, and is attached to the adhesive layer 153 of the envelope sheet 116 while passing through the roller 159.

It is preferable that the handle punch 162 and the mark sensor 164 are sequentially installed between the adhesive part 150 and the heat fusion part 170. The handle punch 162 forms a hole for the handle by punching one side of the envelope sheet 116. The mark sensor 164 is a sensor for checking a mark printed on the first sheet 117 of the envelope sheet 116. The mark sensor 164 may move the envelope sheet 116 to the heat fusion unit 170 in units of length of the envelope to be manufactured. The check signal is transmitted to the sheet conveying means 120. In this case, as the mark recognized by the mark sensor 164, it is preferable to set a portion printed in units of envelopes to be manufactured. For example, the mark may be a barcode.

Therefore, since the marks formed on the envelope sheet 116 are each formed on the envelope to be manufactured, the mark sensor 164 sequentially checks the marks formed on the envelope sheet 116 and moves them to the heat-sealed portion 170. The check signal is transmitted to the conveying means 120. Specifically, a check signal is transmitted to the drive motor 122 of the sheet conveying means to control the operation of the drive motor 122, thereby providing a mark sensor (e.g., a cyclic eccentric motion of the eccentric roller 126 connected to the drive motor 122). The envelope sheet 116 is sequentially moved in a predetermined length unit from the position of 164 to the cutout 180. Specifically, it will be described later in the description of the cutting unit 180.

The heat fusion unit 170 is mounted to the upper base plate (not shown) so as to be replaceable, and as shown in FIGS. 2, 4 and 5, the sheet conveying means (according to the check signal of the mark sensor 164) A portion of the encapsulated line 119 is formed by periodically heat-sealing the folded envelope sheet 116 which is sequentially moved by a predetermined length unit 120 by 120. At this time, the suture line 119 is formed in a direction perpendicular to the advancing direction of the envelope sheet 116.

The heat fusion unit 170 is engaged with the base plate 172 positioned below the second sheet 118 and the lower base plate 172 while positioned above the first sheet 117 to move the envelope sheet 116. It includes a heat fusion zone 174 to form a plurality of suture line 119. The heat fusion process at the heat fusion unit 170 is performed while the envelope sheet 116 is stopped under the heat fusion zone 174. Of course, the vertical movement period of the heat-sealing zone 174 is made substantially the same as the movement period of the folded envelope sheet 116.

The base plate 172 preferably uses a silicone rubber plate so as to absorb and mitigate shocks when the heat-sealing zone 174 moves up and down.

The heat fusion zone 174 is engaged with the base plate 172 to form a plurality of seam lines 119 on the envelope sheet 116, and a plurality of heat fusion lines 176 protrude from the bottom surface. Of course, the spacing between the heat fusion lines 176 is constantly installed, in the embodiment of the present invention disclosed an example in which the heat fusion lines 176 is formed in a straight form. The heat fusion line 176 is formed narrow in width. As the heat fusion zone 174 may be used that is formed of four or six heat fusion line 176. Although not shown, the heat welding zone 174 is heated to a predetermined temperature by heating means. On the other hand, since it is possible to easily implement the heating means to heat the mold, such as the heat-sealing zone 174 to a predetermined temperature as described above, detailed description thereof will be omitted.

2, 6, and 7, the cutout 180 cuts a central portion between the plurality of suture lines 119 and separates the envelope sheet 116 into individual envelopes 110. The base cutting plate 182 which is provided in the lower part to the roller 181 which moves the envelope sheet 116 which passed the fusion | melting part 170, the envelope sheet 116 moved by the roller 181, and the base cutting plate And a cutting blade 184 positioned at the top of 182 to engage with the edge portion of the base cutting plate 182 to separate the envelope sheet 116 into individual envelopes 110.

Meanwhile, as described above, the eccentric roller 126 moves the envelope sheet 116 toward the cutting edge 184 corresponding to the width of both edge regions of the manufactured envelope 110, that is, the width of the manufactured envelope 110. In particular, the eccentric roller 126 conveys the envelope sheet 116 so that the center portions of the plurality of suture lines 119 formed on the envelope sheet 116 can be located between the cutting edges 184.

At this time, the plurality of pulleys 124 connected to the driving motor 122 is connected to the eccentric roller 126 to rotate the eccentric roller 126 eccentrically, in particular, according to the width of the bag 110 to be manufactured eccentric roller ( 126) is rotated periodically. At this time, the period of the eccentric roller 126 according to the width of the bag 110 is made through the size interval adjuster 128 and the precision size interval adjuster 129.

Referring to the method of manufacturing a bag formed with multiple seams using the bag manufacturing apparatus 200 according to the present invention having such a structure as follows.

First, as shown in FIG. 2 and FIG. 3, the reel 112 wound around the bag fabric 113 and the reel 114 around the air vinyl film 115 start from a state in which the fabric hangers 111 are provided. do.

Next, the step of laminating the bag fabric 113 and the air vinyl film 115 is performed. That is, the envelope fabric 113 and the air vinyl film 115 provided by the reels 112 and 114 are thermally bonded to each other while passing through the metal roller 132 heated by ultrasonic waves, and are drawn out to the envelope sheet 116.

Next, the step of folding the envelope sheet 116 proceeds. That is, the foldable portion 140 folds the envelope sheet 116 in half so that the foldable portion 140 can form the envelope form.

Next, the adhesive layer 153 is formed on the folded envelope sheet 116. That is, the adhesive layer 153 is formed by spraying an adhesive on the open portion 116a of the second sheet 118 to seal the portion corresponding to the open portion 116a of the envelope to the envelope sheet 116 folded in half. do. For example, the adhesive injector 152 sprays the adhesive on the upper end of the second sheet 118 that has passed through the fold 140. And the dryer 154 forms the adhesive layer 153 by spraying hot air on the part where the adhesive was sprayed to dry the adhesive.

At this time, in order to prevent the adhesive layer 153 formed on the envelope sheet 116 from being contaminated or damaged in a subsequent process, attaching the Fuji 158 covering the adhesive layer 163 after the process of forming the adhesive layer 163. This is done continuously.

Next, as shown in FIGS. 2, 4, and 5, the forming of the plurality of suture lines 119 is performed. That is, the heat fusion unit 170 periodically heat-bonds the folded envelope sheet 116 sequentially moved by the eccentric roller 126 by a predetermined length unit according to the check signal of the mark sensor 164 to seal the plurality of seams. Form 119. At this time, the suture line 119 is formed in a direction perpendicular to the advancing direction of the envelope sheet 116.

Lastly, as shown in FIGS. 2, 6, and 7, a step of separating the envelope sheet 116 formed with a plurality of suture lines 119 at predetermined intervals into individual envelopes 110 is performed. That is, when the eccentric roller 126 moves the envelope sheet 116 toward the cutting edge 184 corresponding to the width of both edge regions of the manufactured envelope 110, that is, the width of the manufactured envelope 110, the cutting edge 184 ) Is lowered to engage the base cutting plate 182 to separate the envelope sheet 116 into individual envelopes 110.

At this time, the eccentric roller 126 is an envelope sheet (126) so that the center portions of the plurality of suture lines 119 formed on the envelope sheet 116 can be positioned at the point where the base cutting plate 182 and the cutting blade 184 can be engaged. 116 is moved from the heat-sealed portion 170 toward the cut portion 180.

The envelope 110 manufactured by such a manufacturing method of the present invention is shown in FIG. 8. Referring to FIG. 8, the envelope 110 having the multiple suture lines 119 has a structure in which an envelope fabric 113 is attached to an outer side of the air vinyl film 115 forming a storage space, and an article as a storage space on one side. The opening part 116a which can accommodate the is formed.

An adhesive layer 153 is formed on the second sheet 118 of the open portion 116a, and the adhesive layer 153 is protected by the Fuji 158. Of course, after removing the Fuji 158 when using the envelope 110 by applying a predetermined pressure in a state in which the adhesive layer 153 of the second sheet in contact with the outer surface of the first sheet 117 on the top of the opening 116a The opening 116a can be closed.

In addition, two suture lines 119 are formed at predetermined intervals around both edges adjacent to the opening 116a. At this time, the suture line 119 is not only formed by a heat fusion method but also formed in a double, even if the external force acts on the envelope 110 is not easily broken. In addition, since the suture line 119 is formed to have a narrow width, deformation of the outer shape of the envelope 110 may be minimized in the process of heat fusion to form the suture line 119.

Meanwhile, in the embodiment of the present invention, the heat fusion unit for forming a multi-sealing line is disclosed, but as shown in FIGS. 9 and 10, a heat fusion unit for forming a predetermined sealing band may be used.

9 is a partial cross-sectional view showing a heat seal portion 270 as a bag manufacturing apparatus according to another embodiment of the present invention. 10 is a partial cross-sectional view showing a step of forming a sealing strip 219 in the heat-sealed portion 270 of FIG.

9 and 10, since the bag manufacturing apparatus according to another embodiment of the present invention has the same structure except for the heat-sealed portion 270 compared to the bag manufacturing apparatus according to the above-described embodiment, The fusion unit 270 will be described below.

The heat fusion unit 270 periodically heat-bonds the folded envelope sheet 216 sequentially moved by a sheet conveying unit in a predetermined length unit according to a check signal of the mark sensor to form a sealing band 219. to be. At this time, the sealing strip 219 is formed in a direction perpendicular to the advancing direction of the envelope sheet 216.

The heat fusion unit 270 is replaceably coupled to the upper base plate 275 which is positioned above the first sheet 217 and moves up and down, in this case, the heat fusion unit 274 of the heat fusion unit 270. The heat-sealing band 276 of a predetermined width is formed in this.

The heat fusion process at the heat fusion unit 270 is performed while the envelope sheet 216 is stopped between the heat fusion zones 274 on the lower base plate 272. Of course, the period of engagement between the lower base plate 272 and the heat-sealing table 274 is substantially the same as the movement period of the folded envelope sheet 216.

The predetermined width of the heat-sealed band 276 is 1 to 80mm, which is less than 1mm can be easily torn when the sealing portion is applied to the external force, such as the existing envelope, if the excess exceeds 80mm envelope fabric by heat This is because there is a crumpled effect.

On the other hand, embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein. For example, the present invention discloses an example in which an envelope manufacturing apparatus manufactures a double-structured envelope in which an envelope fabric sheet is adhered to an outer side of an air vinyl sheet, but manufactures an envelope having multiple seams on a single envelope sheet or a double or more envelope sheet. It is of course possible to produce envelopes with multiple seams.

Accordingly, according to the structure of the present invention, since the edge portion of the envelope can be formed by forming a rigid seal portion in the envelope sheet using a heat fusion portion in which multiple heat fusion lines are formed, it is not easily broken even when an external force acts on the envelope.

In addition, since the seam is narrow and is formed in multiple, the deformation of the envelope shape can be minimized in the process of heat fusion to form the seam.

In addition, since the heat-sealing zone is replaceably coupled to the upper base plate, not only the heat-sealing zone in which a plurality of heat-sealing lines are protruded depending on the intended use, but also the heat-sealing zone in which heat-sealing bands of various thicknesses are formed. Therefore, it is possible to produce a bag having a variety of rigid sealing areas depending on the intended use.

In addition, since not only a single envelope sheet but also an air vinyl film or foam film may be laminated to form a rigid seal, in case of an article requiring shipping attention, the air vinyl film or foam film is formed in an envelope formed therein. By inserting and packaging, it is possible to package and deliver the goods simply and safely.

This is because, since multiple sealing lines are formed on the envelope, even if an air film or the like is laminated in a single envelope, the sealing portion can be firmly fixed. Even if a separate film is laminated inside the envelope sheet, the edges of the envelope are not damaged. Will be able to pack and ship the goods.

1 is a block diagram showing an apparatus for manufacturing an envelope having multiple seams according to an embodiment of the present invention.

Figure 2 is a schematic side view showing a bag manufacturing apparatus having multiple sutures according to an embodiment of the present invention.

3 is a perspective view showing a folded envelope sheet passing through the Fuji feeder of FIG.

FIG. 4 is a partial cross-sectional view illustrating the heat fusion portion of FIG. 2.

FIG. 5 is a partial cross-sectional view illustrating a step of forming multiple suture lines in the heat-sealed portion of FIG. 4.

6 is a partial cross-sectional view showing a cut portion of FIG. 2.

FIG. 7 is a partial cross-sectional view illustrating the step of separating the semifinished product into individual bags at the cutout of FIG. 6.

8 is a perspective view showing an envelope manufactured by the bag manufacturing apparatus of FIG.

9 is a partial cross-sectional view showing a heat seal portion of the bag manufacturing apparatus having a sealing strip according to another embodiment of the present invention.

FIG. 10 is a partial cross-sectional view illustrating a step of forming a sealing strip in the heat-sealed portion of FIG. 9.

Figure 11 shows the fusion step of the envelope according to the prior art.

12 illustrates a fused state of a bag according to the prior art.

13 is a perspective view of an envelope made according to the prior art.

Description of the main parts of the drawing

110: envelope 112, 114: reel

113: envelope fabric 115: air vinyl film

116: envelope sheet 119: seam

120: sheet conveying means 122: drive motor

126: eccentric roller 130: lamination part

132: metal roller 140: fold

150: adhesive portion 152: adhesive spray

153: adhesive layer 154: dryer

156: Fuji feeder 158: Fuji

162: punch 164: mark sensor

170 and 270: heat-sealed portion 172: base plate

174: heat welding zone 176: heat welding line

180: cutting portion 182: base cutting plate

184: cutting blade 200: bag manufacturing apparatus

272: lower base plate 274: heat welding

276: heat seal band

Claims (8)

Sheet conveying means for moving the envelope sheet provided in the at least one or more reels at a predetermined speed; A heat fusion unit which forms heat-sealed regions of a predetermined width by periodically heat-sealing end portions of the envelope sheet by internal heating means of the envelope sheet which is sequentially moved by the sheet conveying unit by a predetermined length unit; And And a cutting portion for cutting the center portion between the sealing regions to separate the envelope sheet into individual envelopes. According to claim 1, wherein the bag manufacturing apparatus A lower base plate positioned below the envelope sheet, An upper base plate positioned above the envelope sheet and floating relative to the lower base plate; The heat-sealed portion, And a heat-sealing zone detachably coupled to the upper base plate and engaged with the lower base plate to form a sealing area in the envelope sheet while being moved to and away from the upper base plate. The bag manufacturing apparatus according to claim 2, wherein the heat fusion zone is formed with a plurality of heat fusion lines protruding from a lower end thereof so that a sealing area having a plurality of seam lines is formed on the bag. According to claim 2, wherein the heat-sealing bag is a bag manufacturing apparatus having a sealing region, characterized in that the heat-sealing band of a predetermined width protruded in the lower end portion so that the sealing region formed with a sealing band of a predetermined width formed on the bag. The bag manufacturing apparatus according to claim 4, wherein the predetermined width of the heat-sealing band is 1 to 80 mm. The method of claim 1, wherein the sheet conveying means, An eccentric roller installed between the heat-sealed portion and the cut portion to move the envelope sheet having the seam line toward the cut portion; It includes a drive motor for rotating the eccentric roller, The cut portion, A base cutting plate provided at a lower portion of the envelope sheet moved by the eccentric roller; And a cutting blade positioned on an upper portion of the base cutting plate and engaged with an edge portion of the base cutting plate to separate the envelope sheet into individual envelopes. The method of claim 1, wherein the reel includes an envelope fabric and a reel for providing an additional film. The envelope sheet is an envelope manufacturing apparatus having a sealing region, characterized in that the envelope fabric is bonded to the outside of the additional film. An envelope having a sealing region, characterized in that it is manufactured by an envelope manufacturing apparatus having the sealing region of any one of claims 1 to 6,