KR101460249B1 - Film bag manufacture method and cutter thereof - Google Patents

Film bag manufacture method and cutter thereof Download PDF

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Publication number
KR101460249B1
KR101460249B1 KR20140050287A KR20140050287A KR101460249B1 KR 101460249 B1 KR101460249 B1 KR 101460249B1 KR 20140050287 A KR20140050287 A KR 20140050287A KR 20140050287 A KR20140050287 A KR 20140050287A KR 101460249 B1 KR101460249 B1 KR 101460249B1
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KR
South Korea
Prior art keywords
blade
film
envelope
main
cutter
Prior art date
Application number
KR20140050287A
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Korean (ko)
Inventor
고영화
최용규
박병태
Original Assignee
(주)모닝터치
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Publication date
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Priority to KR20140050287A priority Critical patent/KR101460249B1/en
Application granted granted Critical
Publication of KR101460249B1 publication Critical patent/KR101460249B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming

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  • Making Paper Articles (AREA)

Abstract

The present invention relates to a process for producing a tubular film, comprising the steps of producing a tubular film, pressing the tubular film by pressing it flat, cutting the middle portion of the tubular film to separate the tubular film into a first film envelope member and a second film envelope member, A step of cutting the film envelope member so as to automatically form a cover on the second film envelope member, winding the film envelope member, and completing the film envelope by thermally sealing the film envelope member with a film envelope size to produce a film envelope / RTI > Since the film envelope member can be produced in two rolls in one operation and the cover portion is automatically produced, the productivity and workability are improved when the final film envelope is produced, and no folding, creasing or bending occurs in the cover portion The quality of the product is improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a film bag manufacturing method and a film bag manufacturing method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a film envelope having a lid portion, and more particularly, to a method of manufacturing a film envelope having a lid portion formed by automatically cutting the front and back sides of a tubular film at a time, And a bi-directional cutter used therefor.

For modern people, the exchange of parcels and parcels is carried out in almost daily life. Especially, as online shopping becomes popular, many people use courier services to send or receive necessary items.

At this time, small, unbreakable items, including documents and clothing, are transported in film bags.

In general, a film envelope is sealed so that a storage space is formed between two layers of film. In the upper part, an entrance is formed so that the object can be inserted into a storage space. And the lid is adhered to the top of the film envelope when folded to seal and seal the storage space. Therefore, when you use it, open the lid, put the object in the storage space through the opening, cover the lid, and use it to seal and seal the storage space.

As shown in FIG. 1 (a), the upper film portion 10 and the lower film portion 20 are integrally formed into a tubular shape by using a blown film extruder, (Which is shown by cutting only one film envelope in order to facilitate understanding), this tubular film is wound around a sealing machine for envelope processing, and then the side sealing operation is performed The upper portion of the upper film portion 10 is cut along the imaginary cutting line 12 while passing through the blade to form the cover portion 22 as shown in Fig. 1 (b). Then, an adhesive is applied to the inner surface of the lid part 22, and an anti-stick tape is provided thereon. Then, both side edges are subjected to a side seal cutting process with a courier bag size to form a lid part as shown in FIG. 1 (c) A film envelope is produced.

However, in this manufacturing method, since the wrapped film is installed in the sealing machine to form the lid portion, the folded portion of the wrapped portion is not unfolded and the lid portion 22 is folded by the folded portion 24 Since the bending along the folded portion causes the appearance to be poor, folding, creasing and shaking of the cutting line occur at the time of subsequent processing, and when the adhesive is applied, a bending phenomenon occurs on the surface, There is a problem in that the quality is deteriorated due to the bad factor and the productivity can not be improved because the film envelope is manufactured one by one because the speed can not be increased in order to proceed the cutting process precisely.

1) Utility Model No. 20-0463572 registered in the Republic of Korea (Registered Date: November 06, 2012), Design Name: "Synthetic Resin Bag for Delivery" 2) Korean Utility Model Registration No. 20-0382297 (Registered Date), entitled "SYNTHETIC REINFORCEMENT BAG WITH STRENGTHED FUSED BOND AND APPARATUS FOR MANUFACTURING THE SAME" 3) Korean Registered Patent No. 10-0663154 (Registered on Dec. 22, 2006), entitled " 4) Korean Patent No. 10-1035263 (Registered Date: May 11, 2011), entitled "Multipurpose Plastic Bag Automatic Manufacturing Device"

Disclosure of the Invention The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a two-way cutter on a line for extruding and producing a wide tubular film, So that two rolls of film envelope members having different opening directions can be automatically produced. When cutting the middle portion of the tubular film, the front and back sides are cut off at predetermined intervals to form a cover And a lid part that can be formed automatically so that the workability, productivity, and quality of the final film envelope can be automatically formed.

Another object of the present invention is to provide a film envelope member which is used when two roll film envelope members are cut by cutting the middle portion of the tubular film so that the cover member can be automatically generated on the two roll film envelope members in the cutting operation, Cutter.

The above-mentioned object is achieved by a process for producing a tubular film, which comprises the steps of: producing a cylindrical tubular film through a film extruder, the tubular film having a width of two film envelopes; Pressing the cylindrical tubular film flat to form a front film portion and a rear film portion; When the flatly pressed tubular film is being transported, the cutter is used to cut the middle film portion to the left, the front film portion is cut, and the rear film portion is cut to the middle to right portion, A first film envelope member made up of a front film portion and a left rear film portion, and a second film envelope member made up of a right front film portion and a right rear film portion cut off, A second film envelope member which is separated from the first film envelope member and has a protruding portion of the front film member; Winding the first film envelope member and the second film envelope member separated at the cutting step on respective winding rolls; And completing the first film envelope or the second film envelope by installing the first film envelope member or the second film envelope member in a side sealer and performing a side heat seal sealing cutting process with a film envelope width through a side sealer The present invention is also directed to a method of manufacturing a film bag having a lid portion.

The cutter is composed of a bi-directional cutter having a first main edge on one side and a second main edge on the other side with respect to the separator, and the bidirectional cutter is fixed to a line through which the tubular film is pressed, While the tubular film is being conveyed, the separator of the bi-directional cutter is transferred between the front film part and the back film part of the tubular film so that the front film part is automatically cut while passing through the first main part and the rear film part is automatically cut .

The tubular film is staggered with a gap between the first and second main edges so that when the tubular film is cut by the bi-directional cutter, the front film portion and the back surface of the tubular film by the interval between the first and second main edges, And the film portions are cut to be shifted with a predetermined interval from each other so that the respective cover portions are automatically formed.

Another object of the present invention is to provide a film extruder which is capable of pressing a cylindrical tubular film produced by the film extruder in a flat state and transporting the tubular film by cutting a middle portion of the tubular film to divide the tubular film into a first film envelope member and a second film envelope member, A separator formed vertically upright on one side and formed with a first blade engagement groove perpendicularly to the other side and a second blade engagement groove perpendicularly formed on the other side; A first blade supporting groove formed horizontally on the first blade supporting groove and a second blade supporting groove formed on the lower surface of the separating blade in such a manner as to be offset from the first blade supporting member in a lateral direction, And a lower end connected to the first blade coupling groove of the first blade support and inclined, and the upper end of the first blade is coupled to the lower blade of the separation blade, The second blade being coupled to the insertion groove at the bottom is achieved by a two-way cutter, characterized in that configured by a second junal installed obliquely coupled to the second blade fitting groove of said second blade support.

The first auxiliary blade is fitted in the first blade fitting groove at the upper end and the lower blade is fitted in the first blade fitting groove at the lower part than the first main blade. The second auxiliary blade is provided so as to be fitted in the second blade fitting groove and the lower end to be fitted in the second blade coupling groove in the same manner as the second main blade. When replacing the first main blade or the second main blade, And the second auxiliary blade is configured to perform a continuous cutting operation instead of the second auxiliary blade.

When the method of manufacturing a film envelope having a cover according to the present invention is applied, the productivity of the final film envelope is doubled because the film envelope member of two rolls is produced by one cutting operation.

In addition, when the bi-directional cutter according to the present invention is applied, the cover is automatically formed on the film envelope members of two rolls when the film envelope member of two rolls is cut by cutting the middle portion of the tubular film, The workability and the productivity are improved and the cover is not folded like in the prior art. Thus, the appearance is excellent. In addition, when the adhesive is applied, there is no defect caused by folding marks and bending, Is improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a sequential manufacturing method for explaining a conventional method of producing a film envelope, Fig.
FIG. 2 is a view sequentially illustrating a method of manufacturing a film bag according to the present invention,
3 is a perspective view of a bi-directional cutter according to the present invention,
Figure 4 is a front view of a bi-directional cutter according to the present invention,
5 is a schematic view showing a state in which a bi-directional cutter according to the present invention is installed in a film extruder.

The present invention will now be described in detail with reference to the accompanying drawings.

2 and 5, a method for manufacturing a film envelope having a lid according to the present invention comprises the steps of feeding a raw material from a raw material feeder 1 to a film extruder 3, operating the film extruder 3, To produce a cylindrical tubular film 100 in an upward blown manner. At this time, the width of the tubular film 100 is produced so as to have a width suitable for the length of the film envelope members of the two rolls so as to produce the film envelope members of two rolls. Here, since the raw material feeder 1 and the film extruder 3 are well-known technologies, a detailed description will be omitted. For reference, the tubular film 100 is produced in a continuous roll shape as shown in FIG. 5, but the tubular film 100 is cut out in FIG. 2 only for the sake of understanding.

Next, the cylindrical tubular film 100 produced by the film extruder 3 is fed upward while being supplied with air, and passes through a pair of pressing rollers 5 while being flatly pressed, And is guided and conveyed to a winding machine 9 to be described later via the roller 7. [ At this time, the cylindrical tubular film 100 is pressed to form the front film part 102 and the rear film part 104.

Next, a cutter is provided on a line where the flat tubular film 100 is fed to the take-up machine 9 to cut the middle portion of the tubular film 100 so that the tubular film 100 has different opening directions Two rolls of film envelope members, i.e., a first film envelope member 110 and a second film envelope member 120, are separated. Here, the cutter uses a bidirectional cutter 200 having a first main edge 240 on one side and a second main edge 250 on the other side with respect to the separator 210. Therefore, when the bidirectional cutter 200 cuts the intermediate portion of the tubular film 100, the front film portion 102 and the rear film portion 104 of the tubular film 100 are cut off at a predetermined distance from each other, The film portion 102 cuts off the middle to left portion and the rear film portion 104 cuts the middle to right portion to form a first film envelope consisting of a cut left front film portion and a left back film portion, And a second film envelope member 120 composed of a right front film part and a right rear film part cut with the member 110. [ The protruding portion of the front film portion in the second film envelope member 120 separated from the protruding portion of the rear film portion in the separated first film envelope member 110 automatically forms the lid portion 112 . In other words, while the tubular film 100 is transferred, the separator 210 of the bidirectional cutter 200 is transferred between the front film portion 102 and the rear film portion 104 of the tubular film 100, The rear film portion 104 is automatically cut while passing through the first main feeder 240 and the rear film portion 104 is automatically cut through the second main feeder 250 so that the cover portions 112 and 122 It is automatically formed.

Next, the first film envelope member 110 and the second film envelope member 120 separated in the cutting step are wound on the take-up machine 9, that is, the first film envelope member 110, And wound on the roll R1, and the second film envelope member 120 is wound on the second take-up roll R2.

Next, the first film envelope member 110 or the second film envelope member 120 is separated from the take-up roll and installed in a side sealer (not shown), and the side heat sealer The first film envelope 130 or the second film envelope 140 is completed by cutting. Here, since the side sealing machine is a known technology, a detailed description will be omitted.

In this manufacturing process, the present invention involves cutting a middle portion of the tubular film 100 with a bi-directional cutter 200 to form two rolls of film envelope members 110 ( Since the first film envelope member 110 and the second film envelope member 120 have the same size when the center of the tubular film 100 is cut, When the first film envelope member 110 and the second film envelope member 120 are different in size from each other at the center of the tubular film 100, film bags of different sizes are produced will be.

The present invention is also applicable to a case where a bi-directional cutter 200 cuts a front film portion 102 and a rear film portion 104 of the tubular film 100 at a predetermined interval when cutting a middle portion of the tubular film 100 The lid portions 112 and 122 are automatically formed on the first film envelope member 110 and the second film envelope member 120, respectively.

3 to 5, a bidirectional cutter 200 according to the present invention will be described in more detail. A first blade support 220 is extended from one side of a vertically erected separator 210, A first main blade 240 is slantly installed between the separator 210 and the first blade support 220 and a second blade 240 is provided between the separator 210 and the second blade support 230. [ And has a structure in which the main spindle 250 is inclined.

In other words, a first blade fitting groove 212 is formed vertically on one side of the separator 210 and a second blade fitting groove 214 is formed perpendicularly to the other side of the separator 210. On the upper surface of the first blade support 220, The first blade coupling groove 222 is formed horizontally and the second blade coupling groove 232 is formed horizontally on the upper surface of the second blade support 230. The upper end of the first main body 240 is engaged with the first blade fitting groove 212 of the separator 210 and the lower end of the first main blade 240 is engaged with the first blade coupling groove 222 of the first blade support 220 So that it can be replaced and inclined in an angle adjustable state. The upper end of the second blade 250 is engaged with the second blade fitting groove 214 of the separator 210 and the lower end of the second blade 250 is engaged with the second blade coupling groove 232 of the second blade support 230. So that it can be replaced and inclined in an angle adjustable state.

In addition, the first blade support 220 and the second blade support 230 are staggered from each other. That is, the first blade support 220 is disposed at one side of the separator 210 and the second blade support 230 is disposed at a rear end of the separator 210. Accordingly, when the tubular film 100 is cut, the first main body 240 and the second main body 250 are spaced from each other such that a gap is formed between the first main body 240 and the second main body 250. Accordingly, The lid portions 112 and 122 are automatically formed by cutting the front film portion 102 and the rear film portion 104 of the tubular film 100 by a predetermined distance from each other.

The first auxiliary blade 260 is inserted into the first blade fitting groove 212 at the upper end and the first blade coupling groove 222 at the lower end of the first blade 240, The second auxiliary blade 270 is inserted into the second blade insertion groove 214 at the lower end than the second main blade 250 and the upper end is inserted into the second blade insertion groove 214 at the second end 250, And is fitted so as to fit into the coupling groove 232. Therefore, when replacing the first main blade 240 or the second main blade 250, it is preferable that the first auxiliary blade 260 or the second auxiliary blade 270 be configured to perform a continuous cutting operation in place of the first auxiliary blade 260 or the second auxiliary blade 270 .

The separator 210 has a triangular upper end so as to be pointed or smoothly formed so that the front film part 102 and the rear film part 104 are easily opened when the tubular film 100 is guided, It is desirable to prevent such damage. A fixing hole H is formed through the first blade support 220 or the second blade support 230 to be fixed to the winder 9.

When the film envelope having the lid part is produced by the manufacturing method of the present invention using the bidirectional cutter 200 configured as described above, the film envelope member can be produced in two rolls by one operation, the lid part is automatically generated, There is an advantage that productivity, workability and quality of product are improved because no folding marks are left on the part.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

3: Film extruder 9: Winder
100: Tubular film 102: Front film part
104: rear film part 110: first film envelope member
112: lid part 120: second film envelope member
122: lid part 130: first film envelope
140: Second film envelope 200: Bi-directional cutter
210: separator 220: first blade support
230: second blade support 240: first blade
250: Second week 260: 1st day
270: Second Aid Day

Claims (6)

Producing a cylindrical tubular film through a film extruder, wherein the tubular film has a width of two film envelopes;
Pressing the cylindrical tubular film flat to form a front film portion and a rear film portion;
When the flatly pressed tubular film is being transported, the cutter is used to cut the middle film portion to the left, the front film portion is cut, and the rear film portion is cut to the middle to right portion, A first film envelope member made up of a front film portion and a left rear film portion, and a second film envelope member made up of a right front film portion and a right rear film portion cut off, A second film envelope member which is separated from the first film envelope member and has a protruding portion of the front film member;
Winding the first film envelope member and the second film envelope member separated at the cutting step on respective winding rolls; And
The first film envelope member or the second film envelope member is provided on the side sealer and the side heat seal sealing cutting process is performed on the width of the film envelope through the side sealer to complete the first film envelope or the second film envelope And the lid portion is provided with a lid portion.
The method according to claim 1,
Wherein the cutter comprises a bi-directional cutter having a first main edge on one side and a second main edge on the other side,
The bidirectional cutter is installed so as to be fixed to a line through which the flat tubular film is fed, and while the tubular film is being fed, the bidirectional cutter is transferred so that the separator of the bidirectional cutter enters between the front film portion and the rear film portion of the tubular film, And the rear film portion is automatically cut while passing through the second main cutting edge, and the rear film portion is automatically cut while passing through the second main cutting edge.
3. The method of claim 2,
Wherein the first and second main edges are staggered from each other to form a gap between the first main edge and the second main edge so that when the tubular film is cut by the bidirectional cutter, Wherein the lid part is formed by automatically cutting off portions of the lid part with a predetermined gap therebetween.
The method of claim 3,
The separator is vertically erected, the first blade support extends laterally on the lower side, the second blade support extends laterally on the lower blade,
A first blade fitting groove is formed vertically on one side surface of the separating bar, a second blade fitting groove is formed vertically on the other side surface,
The first blade supporting member is formed with a first blade coupling groove horizontally,
A second blade coupling groove is formed horizontally in the second blade support,
Wherein the first main blade has an upper end fitted in a first blade fitting groove of the separator and a lower end fitted in a first blade coupling groove of the first blade support,
Wherein the second main blade has an upper end fitted in a second blade fitting groove of the separator and a lower end fitted in a second blade coupling groove of the second blade support and being replaceable and angle adjustable and inclined. A method of making an envelope.
A bidirectional cutter for cutting a tubular film into a first film envelope member and a second film envelope member by cutting a middle portion of the tubular film when flatly pressing and transporting a cylindrical tubular film produced by a film extruder,
A separator having a first blade insertion groove vertically formed on one side thereof and a second blade insertion groove formed perpendicularly on the other side thereof,
A first blade support extending laterally from a lower side of the separator and having a first blade coupling groove horizontally formed on an upper surface thereof,
A second blade supporting member extending laterally from the lower surface of the separating member in a direction offset from the first blade supporting member and having a second blade coupling groove horizontally formed on an upper surface thereof,
And a lower end of the first blade is coupled to the first blade coupling groove of the first blade support and is inclined,
And a second main edge coupled to the second blade engaging groove of the separator and having a lower end slantedly coupled to the second blade engaging groove of the second blade support.
6. The method of claim 5,
The first auxiliary blade is fitted in the first blade fitting groove at the upper end and the lower blade is fitted in the first blade coupling groove at the lower part of the first main blade,
A second lower blade is fitted in the second blade fitting groove and the lower blade is fitted in the second blade fitting groove in the same manner as the second blade,
Wherein the first auxiliary blade or the second auxiliary blade is configured to perform a continuous cutting operation in place of the first auxiliary blade or the second auxiliary blade when replacing the first or second main blade.
KR20140050287A 2014-04-25 2014-04-25 Film bag manufacture method and cutter thereof KR101460249B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117565473A (en) * 2024-01-17 2024-02-20 晋江市祥兴纸塑彩印有限公司 Production equipment and production method of antistatic plastic express packaging bag

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101122539B1 (en) 2009-12-30 2012-03-20 김종보 Apparatus for manufacturing plastic bags
KR20140037436A (en) * 2012-09-18 2014-03-27 주식회사 성진케미칼 Automatic manufacturing apparatus for band type inside sheet of file

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101122539B1 (en) 2009-12-30 2012-03-20 김종보 Apparatus for manufacturing plastic bags
KR20140037436A (en) * 2012-09-18 2014-03-27 주식회사 성진케미칼 Automatic manufacturing apparatus for band type inside sheet of file

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117565473A (en) * 2024-01-17 2024-02-20 晋江市祥兴纸塑彩印有限公司 Production equipment and production method of antistatic plastic express packaging bag
CN117565473B (en) * 2024-01-17 2024-04-16 晋江市祥兴纸塑彩印有限公司 Production method of antistatic plastic express packaging bag

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