KR101616933B1 - Packaging apparatus and packaging method using the same - Google Patents

Abstract

The present invention relates to an article packaging apparatus and a method of packaging an article using the same, and more particularly, to a vinyl bag having two openings on an upper surface and a rear surface and having an opening opened in a first direction, To a position opposite to the direction ("second direction"); A vinyl bag opening operable to slide forward toward the vinyl bag inlet in the second direction to maintain the open state of the vinyl bag inlet; And a push rod operable to slide forward in the second direction and push the article into the vinyl bag through the vinyl bag inlet, and a method of packaging an article using the article.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a packaging apparatus for packaging articles,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article packaging apparatus and a method for packaging articles using the same, and more particularly, to an article packaging apparatus capable of forming a vinyl bag, sealing the vinyl bag after filling the article in the vinyl bag, .

BACKGROUND ART [0002] Automated devices for packaging articles or foods in plastic bags have been used conventionally. Conventional general packaging systems include a vinyl bag forming process for forming a vinyl bag from a vinyl film, a filling process for putting the product into a vinyl bag, and a sealing process for sealing the filled plastic bag.

Figure 1 shows an example of an article packaged in a plastic bag. As a conventionally used method for packaging an article as shown, a vinyl film wound on a roll surrounds the article to bond the upper sealing area 101 and then to the sealing areas 102, 103 ) Are simultaneously or sequentially adhered to produce a packaged article as shown in Fig. However, in this case, since it is difficult to form the bent edge line 104 on the side surface, there is a disadvantage that the plastic bag design is limited. Further, when the article to be packaged is a soft material, there is a problem that the article is broken or deformed while the vinyl film is wrapped around the article.

As another conventional method of packaging articles, after forming a plastic bag with an open mouth at one end, an operator manually inserts the article into a plastic bag and then seals the open inlet to produce a packaged article as shown in Figure 1 . In this case, since the vinyl bag having the edge line 104 can be formed, the restriction on the vinyl bag design is reduced. However, since the operator manually inserts the article into the vinyl bag, the vinyl bag forming process and the product filling process are separated, There is a disadvantage that the entire process leading to product packaging can not be performed automatically.

According to one embodiment of the present invention, there is provided an apparatus for automatically packing and sealing an article in a plastic bag of a design with an edge line formed to package the article.

According to an embodiment of the present invention, there is provided an article packaging method capable of automatically filling and sealing an article on a vinyl bag having an edge line formed therein.

According to an embodiment of the present invention, there is provided a method of packaging a product using a packaging device for packaging an article in a plastic bag, comprising the steps of: providing a plastic bag having two openings in the first direction, ("Filling standby position") which is opposite to the advancing direction of the article to be filled in the vinyl bag ("second direction"); Opening the opening of the vinyl bag by adsorbing the upper surface of the vinyl bag by raising a predetermined height; The vinyl bag opening advancing and sliding toward the inlet in the second direction to maintain the open state of the inlet; And pushing the plastic bag forward slides in the second direction and pushing the article into the plastic bag through the open plastic bag inlet, thereby transporting the plastic bag to the sealing part.

According to an embodiment of the present invention, there is provided a packaging apparatus for packaging an article in a plastic bag, comprising: a plastic bag having an upper surface and a rear surface and having an inlet opening in a first direction, (A "filling standby position") opposite to the traveling direction ("second direction" A vinyl bag opening operable to slide forward toward the vinyl bag inlet in the second direction to maintain the open state of the vinyl bag inlet; And a push rod operable to slide forward in the second direction and push the article through the vinyl bag inlet into the vinyl bag.

According to an embodiment of the present invention, there is an advantage that an edge line is formed and the product can be packed by automatically filling and sealing the plastic bag with a good design.

According to one embodiment of the present invention, there is an advantage that the entire article packaging process from the vinyl film roll to the product packaging can be performed automatically.

According to one embodiment of the present invention, there is an advantage that even when the article is wrapped with a brittle material when wrapped with a vinyl film, the article can be automatically filled and sealed in the vinyl bag of the edge line design.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining a method of packaging an article in a plastic bag according to the prior art,
2 is a block diagram for explaining a product packaging apparatus according to an embodiment of the present invention;
3 is a block diagram for explaining a vinyl bag forming unit according to an embodiment.
4 to 7 are views for explaining a method of forming a vinyl bag in a vinyl roll according to an embodiment of the present invention,
8 is a plan view of the article packaging apparatus according to one embodiment,
Fig. 9 is a front view of the article packaging apparatus of Fig. 8,
10 is a front view of a portion of a vinyl bag forming portion according to an embodiment;
11 is a side cross-sectional view of a back bent portion of a vinyl bag forming portion according to an embodiment,
12 and 13 are side cross-sectional views of a back sealing portion of a vinyl bag forming portion according to an embodiment,
14 is a front view of a portion of the vinyl bag forming portion according to an embodiment,
15 is a side cross-sectional view of a side folded portion of a vinyl bag forming portion according to an embodiment,
16 is a perspective view of a filling part and a sealing part according to an embodiment,
17 is a perspective view of a conveyance unit according to an embodiment,
18 and 19 are a perspective view and a front view, respectively, of the vinyl bag opening portion of the filling portion according to the embodiment before the sliding operation,
20 and 21 are a perspective view and a front view, respectively, of a vinyl bag opening after a sliding operation according to an embodiment,
22 is a perspective view of a push portion of a filling portion according to an embodiment,
23 and 24 are front views before and after the sliding operation of the push portion according to the embodiment, respectively,
25 is a flowchart for explaining the operation of the filling unit according to an embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being "above" (or "below", "right", or "left") another element, ) Or it may mean that a third component may be interposed therebetween. Further, in the drawings, the thickness of the components is exaggerated for an effective description of the technical content.

Also, in this specification, expressions such as "upper", "lower", "left", "right", "front", "rear" And does not mean a direction or a position as a reference, and may be a relative expression for describing the configuration of the embodiment with reference to the drawings, based on the drawings.

Where the terms first, second, etc. are used herein to describe components, these components should not be limited by such terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprise" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some cases, it should be mentioned in advance that it is common knowledge in describing an invention that parts not significantly related to the invention are not described in order to avoid confusion in explaining the present invention.

2 is a block diagram for explaining an article packaging apparatus according to an embodiment of the present invention. Referring to the drawings, an article packaging apparatus according to an embodiment of the present invention may include a bag bag forming unit 10, a filling unit 20, and a sealing unit 30.

The vinyl bag forming portion 10 forms a vinyl bag from a vinyl film wound in a roll form. In one embodiment, the vinyl film is unwound from a roll of vinyl film roll, fed to the vinyl bag forming portion 10 of the present invention, and a vinyl bag having one opening at the vinyl bag forming portion 10 is made.

Here, "vinyl film" means a plastic film which is mainly used for packaging articles or foods and is heat-sealable. In one embodiment, the vinyl film may be a film made of, for example, polyethylene, but the present invention is not limited to such a specific material.

The filling unit 20 feeds the product to the plastic bag manufactured in the plastic bag forming unit 10. [ Here, the "article" may be a size that can be inserted into a plastic bag, and the shape, material, weight, etc. of the article are not limited.

The sealing portion 30 seals the plastic bag filled with the article. In one embodiment, the article is fed from the filling part 20 to the sealing part 30 in the state where the article is inserted into one of the open openings of the vinyl bag, and the sealing part 30 can seal the opened inlet by heat welding.

3 is a block diagram for explaining a vinyl bag forming unit according to an embodiment, and shows a specific exemplary configuration of the vinyl bag forming unit 10 of FIG.

Referring to the drawings, a vinyl bag forming unit 10 according to an embodiment includes a back bend 110, a backside sealing unit 120, a side bending unit 130, a widthwise sealing unit 160, (180), which are sequentially arranged along the traveling direction of the vinyl film wound on the wound roll.

The back bent portion 110 folds the vinyl film in the width direction to form the top and back surfaces of the vinyl bag, and bends the overlapping portions of both ends of the back surface. Thereafter, the vinyl film is transferred to the back sealing part 120 in a state where the overlapped part is folded, and the back sealing part 120 seals the bent part of the back folding part 110.

The side bending portion 130 is disposed at the rear end of the back sealing portion 120 and pushes the end portions of both sides in the width direction in which the upper face and the back face of the vinyl film meet into the space between the upper face and the back face, Thereby forming an edge line 104 as shown in FIG.

The width directional sealing portion 160 seals the vinyl film along the width direction of the vinyl film at a predetermined length and the cutting portion 180 is disposed at the rear end of the width directional sealing portion 160, The vinyl film is cut in the width direction.

As described above, the vinyl film wound in the vinyl film roll is wound around the rear bending portion 110, the back side sealing portion 120, the side bending portion 130, the widthwise sealing portion 160, and the cutting portion 180 sequentially The vinyl bag as shown in Fig. 7, that is, the vinyl bag having one of the openings at one end and the two sides bent can be formed.

The vinyl bag formed in the vinyl bag forming portion 10 is then transferred to the filling portion 20 by the transfer portion 190 so that the product is filled in the vinyl bag and then transferred to the sealing portion 30, The entrance is sealed.

Hereinafter, a process of forming a vinyl bag in a vinyl film roll according to an embodiment will be described with reference to FIGS. 4 to 7. FIG.

4 schematically shows a process in which the vinyl film 50 wound on the vinyl film roll is formed by a vinyl bag while being transferred from the left to the right direction in the figure.

Referring to the drawings, the article packaging apparatus according to one embodiment includes a guide plate 111 extending along the conveying direction of the vinyl film. The guide plate 111 may be formed of a metal plate having a predetermined thickness, for example. The guide plate 111 is maintained at a width of the first length at the upstream side in the transport direction of the vinyl film and is maintained at the downstream side (i.e., from left to right in FIG. 4) And may be a shape having a width.

The guide plate 111 includes a protruding portion 113 that protrudes vertically and extends a predetermined length along the transport direction on the upstream side. Preferably, the projecting portion 113 protrudes upward from the center in the width direction of the guide plate 111. The guide plate 111 and the protrusion 113 may be integrally formed and the guide plate 111 and the protrusion 113 may be separately formed and then coupled to each other.

Further, at the downstream side portion having the width of the second length, the guide plate 111 can be separated into two vertically separated plates, that is, the upper plate 131 and the lower plate 133. Preferably, the upper plate 131 and the lower plate 133 are spaced apart from each other by a predetermined distance so as to have a space therebetween, so that both end portions in the width direction of the vinyl film can be bent into this space have.

In one embodiment, the guide plate 111 and the upper plate 131 may be formed integrally with one another and the lower plate 133 may be attached under the upper plate 131. Alternatively, The lower plate 133 may be integrally formed and the upper plate 131 may be attached above the lower plate 133. Or alternatively, the guide plate 111, the upper plate 131, and the lower plate 133 may be integrally formed.

The rear bending portion 110, the backside sealing portion 120, and the side bending portion 130 are sequentially disposed along the longitudinal direction of the guide plate 111. 4, the detailed structure of the rear bending portion 110, the back side sealing portion 120, and the side bending portion 130 is not shown for the sake of simplification of description, Respectively. As shown in the drawing, the rear bending portion 110 is disposed on the upstream side of the guide plate 111 having the protrusion 113, and the backside sealing portion 120 is disposed on the upper side of the guide plate 111, The side bending portion 130 is disposed in an area where the upper plate 131 and the lower plate 133 are formed in the downstream of the feeding direction.

The vinyl film 50 wound on the vinyl film roll is guided to the lower side of the guide plate 111 as it enters the rear bending portion 110 and at the same time the guide plate 111 is wrapped upwardly As shown in Fig. 5A, both end portions in the width direction of the vinyl film meet each other in the vicinity of the projecting portion 113. As shown in Fig.

5A is a cross-sectional view taken along the line A-A 'of FIG. 4. Referring to FIG. 5A, the vinyl film 50 is wrapped around the guide plate 111 from the lower side to the upper side of the protrusion 113, Both ends in the width direction meet. The portion of the vinyl film 50 that is in contact with the lower surface of the guide plate 111 is referred to as the upper surface 51 of the vinyl film and the portion of the vinyl film 50 in contact with the upper surface of the guide plate 111 is referred to as the back surface 52 of the vinyl film Respectively.

Both ends of the back surface 52 of the vinyl film that surrounds the upper portion of the guide plate 111 are folded in the vertical direction by the vertically protruding portions 113 to form the overlapping portion 53 which is an area facing each other. The overlapped portion 53 is a portion where both end portions in the width direction of the vinyl film 50 overlap with each other and is a region to be sealed at the back sealing portion 120 which is the next step.

5B showing a cross section taken along the line B-B 'in FIG. 4, as the vinyl film is transported toward the rear sealing portion 120, as shown in FIG. 5B, The overlapping portions 53 of the vinyl film 50 come into contact with each other, and the back sealing portion 120 heats and pressurizes the overlapping portion.

The sealed plastic film 50 is then transported in the direction of the side bending portion 130. At this time, the vinyl film 50 in the side bending portion 130 surrounds the upper plate 131 and the lower plate 133, that is, the upper surface 51 of the vinyl film contacts the lower surface of the lower plate 133, The back surface 52 is transferred in contact with the upper surface of the top plate 131. In this state, the side bending portion 130 is provided at both ends in the width direction where the upper surface 51 and the back surface 52 of the vinyl film meet with a space between the upper surface 51 and the back surface 52, Into the space between the lower plates 133 and bends them.

Thus, the vinyl film having passed through the side bending portion 130 has a cut surface as shown in Fig. 5C. 5C is a cross-sectional view taken along the line C-C 'in FIG. 4, showing a cross section of the vinyl film that has passed through the side bending portion 130. FIG. Both side ends of the vinyl film 50 have a bent region 54 bent into an inner space between the upper surface 51 and the back surface 52 as shown in the figure.

The vinyl film 50 is then transferred to the widthwise sealing portion 160 and the widthwise sealing portion 160 seals the vinyl film in the width direction at predetermined lengths. 6 is a schematic view of the vinyl film 50 that has passed through the width directional sealing portion 160. The vinyl film 50 having the sealed overlapping portion 53 on the back surface is spaced apart at a predetermined interval So that a sealing region 55 is formed.

Thereafter, the vinyl film 50 is transferred to the cutting portion 180, and the cutting portion 180 is adjacent to the widthwise sealed region 55 to cut the vinyl film 50 in the width direction. For example, the cutting portion 180 can cut the vinyl film 50 in the width direction along the cutting portion indicated by the dotted line in FIG. 6, thereby forming the vinyl bag 60 having the shape as shown in FIG. 7, Is generated.

7, the vinyl bag 60 is composed of an upper face 61 and a back face 62, and a back face sealing area 63 is formed on the back face 62 by the back face sealing part 120. As shown in FIG. One end portion in the longitudinal direction is formed with a widthwise sealing region 65 formed by the widthwise sealing portion 160 and bent at the sides of the vinyl bag 60 in the width direction by the side bent portion 130, So that a vinyl bag shape having an opening at one end in the longitudinal direction is formed.

As described above, the vinyl bag formed in the vinyl bag forming portion 10 is then transferred to the filling portion 20 by the transfer portion 190. In one embodiment, the transfer unit 190 includes an adsorption panel having an adsorption force, and the vinyl bag 60 can be adsorbed on the adsorption panel and transported. At this time, the back surface 62 of the vinyl bag 60 is adsorbed on the adsorption panel And the upper surface 61 of the plastic bag 60 is directed upward so that the back surface 62 of the vinyl bag 60 faces downward. The article is filled in the vinyl bag 60 in the part 20 and then transferred to the sealing part 30 so that the vinyl bag inlet is sealed to finally complete the product packaging.

An exemplary apparatus configuration of the article packaging apparatus according to one embodiment will now be described with reference to FIGS. 8 to 24. FIG.

Fig. 8 is a plan view of the article packaging apparatus according to an embodiment, and Fig. 9 is a front view of the article packaging apparatus. 8 and 9, an article packaging apparatus according to an embodiment of the present invention includes a vinyl bag forming unit 10 for forming a vinyl bag in a vinyl film, a filling unit 20 for filling the product in a vinyl bag, And a sealing portion 30 sealing the plastic bag filled with the article.

9, the vinyl bag forming unit 10 is disposed below the article packaging apparatus, and the vinyl film wound on the vinyl film roll is transported from the left side to the right side of the drawing, do. In the embodiment, the filling portion 20 is disposed on the upper portion of the vinyl bag forming portion 10. The transfer part 190 is disposed at the downstream end of the vinyl bag forming part 10 so that the vinyl bag made in the vinyl bag forming part 10 is transferred to the filling part 20 in the upward direction by the transfer part 190 .

The products to be fed into the plastic bag are transported from the left to the right in the drawing toward the filling part 20. The filling unit 20 feeds the article transported from the left side to the right side in the drawing to the plastic bag transported from the downward direction and then transfers the transported product to the sealing unit 30 side while the sealing unit 30 transports the plastic bag Lt; / RTI >

Figs. 10 to 15 are views for explaining an exemplary apparatus configuration of the vinyl bag forming portion 10. Fig.

10 is a front view of a portion of the vinyl bag forming portion 10, schematically showing the back folding portion 110 and the back sealing portion 120. As shown in FIG.

Referring to the drawings, a back bend 110 according to an embodiment includes a guide plate 111, a protrusion 113, and a pressing portion 115. As described with reference to FIG. 4, the guide plate 111 may be a plate having a predetermined thickness extending along the transport direction of the vinyl film. The protruding portion 113 is vertically protruded on the upstream side of the guide plate 111 and is configured to extend a predetermined length along the transport direction of the vinyl film.

The pressing portion 115 is for bending the surface of the vinyl film to be wrapped around the guide plate 111 and may include a pressure roller 116, a support shaft 117, and a coupling member 118. The pressure roller 116 is rotatably coupled to the support shaft 117 and presses the vinyl film and can rotate around the support shaft 117 by friction with the vinyl film as the vinyl film is fed. The support shaft 117 for rotatably supporting the pressure roller 116 is engaged with the engagement member 118 and the engagement member 118 is attached to the apparatus frame of the product packaging apparatus to fix the support shaft 117.

Fig. 11 schematically shows a state in which the vinyl film passes through the rear bending portion 110 in such a configuration. 11 shows a cross section taken along the line D-D 'in Fig. 10 and 11, as the vinyl film 50 wound on the vinyl film roll enters the rear folding part 110, the guide plate 111 is wrapped from the lower side to the upper side. As shown in the figure, 50 are brought close to each other in the vicinity of the projecting portion 113.

In this embodiment, the pressure roller 116 has a tapered shape with a smaller diameter toward the end, and the guide plate 111 having the tapered end portion horizontally and the protruding portion 113 protruding perpendicularly meet each other Both ends of the vinyl film in the vicinity of the protruding portion 113 are bent while being pressed by the pressure roller 116. As a result, The vinyl film adjacent to the corner where the horizontal guide plate 111 and the vertical protrusion 113 meet is bent while being pressed by the pressure roller 116. [

Referring again to FIG. 10, the back sealing portion 120 according to one embodiment may include a heating unit 121 and a pressing unit 123 disposed adjacent to the downstream side of the heating unit 121. The heating unit 121 heats the overlapped portion 53 of the vinyl film in the sealing portion of the vinyl film 50 in the embodiment of the present invention and then the pressing unit 123 presses the overlapping portion 53 Thereby sealing the overlapping portion 53.

12 and 13 schematically show the state in which the vinyl film passes through the heating unit 121 and the pressure unit 123 of the back sealing portion 120 in such a configuration. 12 is a sectional view taken along the line E-E 'of Fig. 10, and Fig. 13 is a sectional view taken along the line F-F' of Fig.

12, the backside sealing part 120 may be composed of a pair of heating units 121 arranged in the conveying direction of the vinyl film and spaced apart from each other, and the overlapping of the vinyl film 50 So that the portion 53 passes. Thus, the vinyl film 50 can be heated while passing between the pair of heating units 121.

Next, referring to Fig. 13, the pressing unit 123 disposed at the rear end of the heating unit 121 includes a pair of rollers 125. Fig. The pair of rollers 125 are arranged in a direction perpendicular to the conveying direction of the vinyl film, that is, in the width direction of the vinyl film, and the overlapped portion 53 of the vinyl film 50 is formed as a gap between the pair of rollers 125. [ As shown in Fig.

Each roller 125 is rotatably engaged by a shaft 126 and the shaft 126 is fixedly coupled to an apparatus frame of the article packaging apparatus by an upper support portion 127. At this time, at least one of the pair of rollers 125 is configured to be pressed toward the other roller side by a pressing member such as a spring or a cylinder, 53 are pressed and sealed by passing through the pair of rollers 125.

Although the above embodiment has been described with respect to the folded back portion 110 and the backside sealing portion 120 constituted by the pressure roller 116, the heating unit 121 and the pressing unit 123 of the illustrated structure, But is merely an exemplary embodiment. That is, it will be understood that the specific means of bending and sealing the vinyl film 50 according to actual concrete embodiments may be modified or varied, and that the present invention is not limited to the specific structure of bending and sealing of the vinyl film.

14 is a front view of a portion of the vinyl bag forming portion 10 according to an embodiment, and shows a configuration at the rear end of the back sealing portion 120 of Fig. A first pinch roller 140, a dancer unit 150, a widthwise sealing portion 160, a second pinch roller 170, and a second pinch roller 170. The side bending portion 130, the first pinch roller 140, And a cutting portion 180. The cutting portion 180 may be formed of a flexible material.

Referring to the drawing, the vinyl film sealed with the overlapping portion 53 of the back surface by the backside sealing portion 120 is transported to the side bending portion 130. 4, the side bending portion 130 includes an upper plate 131 and a lower plate 133 which extend from the guide plate 111 side and are vertically spaced from each other.

15 is a cross-sectional view taken along the line G-G 'in Fig. 14, and schematically shows a state in which the vinyl film 50 passes through the side bending portion 130. Fig. As can be seen from FIGS. 14 and 15, the vinyl film 50 in the side bending portion 130 is transported while wrapping the upper plate 131 and the lower plate 133. At this time, the discs 135 are disposed one by one at a predetermined distance from both ends of the upper plate 131 and the lower plate 133. The circular plate 135 is disposed so that the periphery of the circular plate 135 is spaced a predetermined distance from the space between the upper plate 131 and the lower plate 133. Each original plate 135 is fixedly coupled to the apparatus frame of the article packaging apparatus by a support portion 137 for supporting the original plate.

With this configuration, both side portions of the vinyl film 50 passing through the side bending portion 130 in the state of wrapping the upper plate 131 and the lower plate 133 come into contact with the disc 135, So that both side portions of the vinyl film have a shape bent into an inner space between the upper plate 131 and the lower plate 133 as shown in FIG.

Referring again to FIG. 14, the vinyl film 50 having both side portions bent at the side bending portion 130 passes through the first pinch roller 140 at the rear end and proceeds to the dancer unit 150 side.

In one embodiment, the first pinch roller 140 includes a pair of rollers 141 and 142 disposed up and down, and has a function of pulling the vinyl film 50 from the vinyl film roll. That is, by pulling the vinyl film in the transporting direction by the pair of rollers 141 and 142, the vinyl film proceeds in the transport direction at a constant speed in a state of receiving a constant tension across the entire vinyl bag forming portion 10. At this time, in one embodiment, only one of the pair of rollers 141 and 142 may be configured to operate as a drive roller and the other as a driven roller.

The dancer unit 150 is a device that is disposed between the first pinch roller 140 and the second pinch roller 170 to maintain the tensile force of the vinyl film transferred to the second pinch roller 170 side. The second pinch roller 170 is moved by the first pinch roller 140 at a constant speed for a sealing operation in the widthwise sealing portion 160 while the vinyl film is wound and transported at a constant speed in the vinyl film roll, The conveying speed of the vinyl film is different between the first pinch roller 140 and the second pinch roller 170. Accordingly, It is preferable that the dancer unit 150 is disposed between the first pinch roller 140 and the second pinch roller 170 to prevent the tension applied to the vinyl film from fluctuating due to the difference in speed.

The manner in which the dancer unit 150 maintains the tension of the vinyl film constantly can be variously implemented depending on the type of the dancer unit. In the illustrated embodiment, the dancer unit 150 can maintain the tension of the vinyl film by arranging the plurality of dancer rollers, which can move up and down by their own weight, to press the vinyl film on the upper surface of the vinyl film.

The width direction sealing portions 160 seal the vinyl film along the width direction of the vinyl film at predetermined length intervals. A second pinch roller 170 is disposed at the rear end of the width direction sealing portion 160 to pull the vinyl film in the feeding direction. At this time, the second pinch roller 170 performs an intermittent feeding operation for repeating feeding and stopping for widthwise sealing, and the width directional sealing portion 160 seals the vinyl film in the width direction in the feeding stop state of the vinyl film do. At this time, the gap between the widthwise sealing portions of the vinyl film may vary depending on the driving speed of the second pinch roller 170 disposed at the rear end of the widthwise sealing portion 160.

On the other hand, the second pinch roller 170 may have a configuration similar to that of the first pinch roller 140. That is, in the illustrated embodiment, the second pinch roller 170 may be constituted by a pair of rollers 171 and 172 arranged vertically. At this time, only one roller of the pair of rollers 171 and 172 acts as a drive roller And the other one can be configured to operate as a driven roller.

The cutting portion 180 is a device for cutting the vinyl film that has passed through the second pinch roller 170 in the width direction at predetermined lengths. As described with reference to FIG. 6, in one embodiment, the cutting portion 180 cuts the vinyl film adjacent to the sealing portion sealed in the width direction in the width direction sealing portion 160, A vinyl bag 60 having an open mouth can be made.

An exemplary device configuration of the filling part 20 and the sealing part 30 will now be described with reference to FIGS.

16 is a perspective view of the filling part 20 and the sealing part 130 of the article packaging apparatus according to one embodiment. 16, the above-mentioned vinyl bag forming portion 10 can be disposed below the filling portion 20 as shown in Figs. 8 and 9, and the vinyl bag 10 (Fig. 60 can be transported to the upper filling section 20 side via the vinyl bag transfer section 190.

The filling section 20 may include an article transfer section 210, a vinyl bag opening section 220, and a push section 230. The article transport unit 210 transports an article to be fed to the vinyl bag 60 and transports the article to the vinyl bag opening 220 of the loading unit 20 through a guide device (not shown). In the illustrated embodiment, a guide groove is formed along the path along which the article is conveyed, and the filling part 20 is provided with a pushing part for pushing the article along the guide groove toward the vinyl bag opening part 220 And may include a rod 231.

The sealing portion 30 is a device for sealing the plastic bag filled with the article, and the opening portion of the plastic bag can be sealed by heat fusion. The specific configuration of the sealing portion 30 and the sealing manner are well known to those skilled in the art and are not related to the technical features of the present invention, and therefore a detailed description thereof will be omitted.

17 shows a perspective view of a schematic configuration of a vinyl bag transferring unit 190 according to an embodiment. 17, the vinyl bag transfer unit 190 is disposed at the rear end of the cutting unit 180 of the vinyl bag forming unit 10 and includes a fixed frame 191, a rotating shaft 193, and a rotating frame 192 . The rotary shafts 191 are horizontally aligned along the direction of the vinyl bag transporting direction and the stationary frame 191 rotatably supports the rotary shafts 193 and is fixed to the apparatus frame of the article packaging apparatus.

The rotary shaft 191 is coupled to the rotary frame 192 through one or more rotary frames 192 in the form of a disk or polygonal plate and has a plurality of And an adsorption panel 195 is coupled. The absorption panel 195 is attached to the rotation frame 192 so as to face radially outward with respect to the rotation axis 191 in a direction parallel to the rotation axis 191. In one embodiment, the adsorption panel 195 is configured to adsorb the vinyl bag 60 on the panel surface by vacuum adsorption. That is, in the illustrated embodiment, a large number of suction holes 196 are formed on the surface of the adsorption panel, and air is sucked by means such as a vacuum pump (not shown) through the suction holes 196.

The vinyl bag 60 that has passed through the cutting portion 180 is transported along the guide groove 198 to a position below the rotary frame 192 of the transfer portion 190, And adsorbed to the adsorption panel 195 located at the lowest position. At this time, since the vinyl bag 60 has passed through the cutting portion 180 with the rear face 62 facing upward and the top face 61 facing downward with the opened mouth facing the opposite side of the feeding direction, 60 will be adsorbed to the adsorption panel 195. The adsorption panel 195 will be described with reference to FIG.

The adsorption panel 195 adsorbing the vinyl bag 60 rotates about the rotation axis 191 and is moved to the uppermost position. In this position, the vinyl bag 60 faces the upper face 61 upward and faces the back face 62, and the open mouth of the vinyl bag faces the direction opposite to the direction of transporting the vinyl bag, The transported article is pushed by the push rod 231 and disposed so as to be easily inserted into the vinyl bag through the open inlet of the vinyl bag 60. [

In the following description, a position at which the suction panel 195, which has adsorbed the vinyl bag 60, is rotated by the rotation shaft 191 to move to the uppermost position and the opening of the vinyl bag is opened in the direction opposite to the article advancing direction, Filling standby position ".

18 and 19 are a perspective view and a front view, respectively, of the vinyl bag opening portion 220 of the filling portion 20 according to an embodiment, and schematically show the state before the sliding operation of the vinyl bag opening portion 220. FIG.

In one embodiment, the vinyl bag opening 220 is disposed at the front end of the vinyl bag transfer portion 190 in the direction of travel of the article, and includes a body 221 that is operable to reciprocally slide along the advancing direction of the article, A pair of conveying guide walls 222 disposed on the upper side, and a pair of fingers 223 hingedly connected to the respective conveying guide walls 222.

The main body 221 is configured to reciprocally slide in the article transport direction and the opposite direction. As will be described below, the main body 221 advances and slides toward the open inlet of the vinyl bag 60 along the article transport direction to operate to maintain the open state of the vinyl bag inlet, and then slides back and returns to the original position .

The pair of conveying guide walls 222 are disposed on the upper portion of the main body 221 and extend along both sides of the advancing path of the article so that the articles are conveyed along the conveying guide wall 222 to the side of the vinyl bag conveying portion 190 Guide.

The pair of fingers 223 are hinged to ends of the pair of conveying guide walls 222 on the side of the article conveying direction and the fingers 223 are hinge- May be disposed. In one embodiment, the finger drive 225 may be implemented by a motor with a cylinder.

19, the vinyl bag opening portion 220 includes a vacuum pipe 228 having one or more adsorption plates 227 disposed on the upper side of the vinyl bag transfer portion 190 and adsorbing the upper surface of the vinyl bag 60 ). The vacuum pipe 228 can be operated to open the vinyl bag inlet by raising a predetermined height while sucking the upper surface of the vinyl bag 60 by the suction plate 227. [

20 and 21 are a perspective view and a front view, respectively, of a vinyl bag opening portion 220 of the filling portion 20 according to an embodiment, schematically showing a sliding operation of the vinyl bag opening portion 220. FIG.

It is assumed that the vinyl bag 60 is first transported to the filling waiting position by the vinyl bag transporting unit 190 before the sliding operation of the vinyl bag opening unit 220 is performed. That is, it is assumed that the vinyl bag 60 made in the vinyl bag forming portion 10 is attracted to the adsorption panel 195 of the vinyl bag transfer portion 190 and rotated upward from below to the first upper position. Thereafter, the sucking plate 227 on the upper side of the transfer unit 190 is lowered down to suck up the upper surface of the vinyl bag 60, and then ascends a certain distance upward. As a result, the back surface of the vinyl bag 60 is attracted to the adsorption panel 195, and the upper surface thereof is adsorbed by the attracting plate 227 and rises upward, so that the entrance of the vinyl bag is opened, (221) slides forward toward the opened inlet and enters the inside of the inlet by a predetermined length.

Immediately after or when the main body 221 enters the inside of the vinyl bag, the finger drive unit 225 is driven as shown in the drawing, and the ends of the pair of fingers 223 are unfolded in directions away from each other, And in this state, the push rod 231 of the push portion 230 pushes the article along the article transport direction and pushes the article into the open mouth of the vinyl bag.

The distance the push rod 231 pushes the article may be set differently according to the embodiment. In one embodiment, the push rod 231 may push and push the article only to the extent that the article is put into the plastic bag. However, in a preferred alternative embodiment, the push rod 231 may continue to push the article even after the article has been fully inserted into the plastic bag, so that the article and the plastic bag further advance along the article advance direction, To the sealing portion 30 of the housing. According to this configuration, there is no need for a separate conveying means for conveying the vinyl bag into which the article has been inserted to the sealing portion 30, which has the advantage of simplifying the structure of the article packaging apparatus.

After the push rod 231 pushes the product into the plastic bag and transfers it to the sealing portion 30 as described above, the main body 221 and the push rod 231 of the vinyl bag opening portion 220 are respectively backwardly moved back to the original position . In one embodiment, the main body 221 and the push rod 231 can sequentially slide back and forth, respectively, and simultaneously slide backward.

22 is a perspective view of a portion of the push portion 230 according to one embodiment. The push portion 230 drives the push rod 231 to feed the article into a plastic bag placed at a filling standby position. In the illustrated embodiment, the push portion 230 includes a push rod 231, a guide frame 233, a connecting shaft 234, and a sliding portion 235.

The push rod 231 pushes the article along the guide groove of the article transfer path of the article transfer unit 210 and inserts the article into the plastic bag. The push rod 231 is connected to the connection shaft 234 and rotatably coupled to the sliding portion 235. The guide frame 233 is disposed along the article transport direction and the sliding portion 235 is slidably coupled to the guide frame 233. [

According to this configuration, the push rod 231 can be moved forward and backward along the article transport direction while being supported by the guide frame 233.

23 shows a state of the push portion 230 before the sliding operation of the push rod 231 is performed. It can be seen that the sliding portion 235 coupled to the push rod 231 is located on the left side of the guide frame 233 and the front end portion of the push rod 231 is also located in the guide groove of the article transferring portion 210 . 24 shows a state after the sliding operation of the push rod 231. The sliding portion 235 slides to the right side of the guide frame 233 so that the forward end of the push rod 231 also moves forward to the sealing portion 30 It can be seen that the sliding is performed.

Meanwhile, the push portion 230 may further include driving means (not shown) for rotating the connecting shaft 234 within a predetermined angle range. The push rod 231 can be rotated simultaneously or sequentially in a predetermined angular range around the connecting shaft 234 by driving the driving means, and the front end portion of the push rod 231 can be rotated The push rod 231 can slide forward or backward without colliding with the fingers 223 of the vinyl bag opening portion 220. [

 Referring now to FIG. 25, the operation of the vinyl bag opening 220 and the filling part 230 according to one embodiment will be described. 25 is a flowchart of an exemplary operation of the bag bag opening 220 and the filling part 230. Fig.

It is assumed that a vinyl bag 60 is formed from a vinyl film rolled in the vinyl bag forming unit 10 before the step S110 and is transported to the filling standby position by the vinyl bag transferring unit 190 . That is, the vinyl bag 60 is rotated in the upward direction while being attracted to the suction panel 195 of the vinyl bag transfer section 190 and transferred to the same height as the main body 221 of the vinyl bag opening section 220, (60) is open toward the article transfer section (210). Further, the back surface 62 of the vinyl bag is adsorbed on the adsorption panel 195 at this filling standby position.

Thereafter, in step S110, the suction plate 227 disposed above the transfer unit 190 sucks the upper surface 61 of the vinyl bag to raise the height to open the inlet of the vinyl bag. Next, in step S120, the vinyl bag opening 220 slides forward toward the open mouth of the vinyl bag to maintain the open state of the inlet. To this end, first, the slidable main body 221 of the vinyl bag opening 220 slides forward to enter the vinyl bag a predetermined distance, and then one or more fingers 223 hinged to the main body 221 are unfolded, The inlet can be supported in an open state.

Then, in step S130, the push rod 231 pushes the article forward to slide forward, thereby putting the article through the open vinyl bag inlet into the vinyl bag. In a preferred embodiment, the push rod 231 further advances forward sliding to transport the vinyl bag to the sealing portion 30. [

When the article is inserted into the plastic bag and is transported to the sealing portion 30, the sliding body 221 and the push rod 231 of the vinyl bag opening portion can be simultaneously or sequentially slid back and returned to their original positions.

The embodiments of the present invention have been described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit and scope of the present invention as defined by the appended claims. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.

10: vinyl bag forming part
20: filling part
30: sealing part
110: back bend
120: Bottom sealing part
130: side bending part
160: width direction sealing part
180:
190:

Claims (20)

A method of packaging a product using a packaging apparatus for packaging an article in a plastic bag,
A vinyl bag forming step of forming, from a vinyl film wound in a roll form, a vinyl bag having two openings on the upper and rear surfaces and having an opening opening in the first direction;
Placing the vinyl bag at a position opposite to the direction of the entrance of the article to be filled in the vinyl bag (hereinafter referred to as " second direction ") (hereinafter referred to as" filling standby position ");
Opening the opening of the vinyl bag by adsorbing the upper surface of the vinyl bag by raising a predetermined height;
The vinyl bag opening advancing and sliding toward the inlet in the second direction to maintain the open state of the inlet;
And pushing the plastic bag forward slidably in the second direction and pushing the article through the open vinyl bag inlet into the vinyl bag, thereby transferring the vinyl bag to the sealing portion,
In the vinyl bag forming step,
Folding the vinyl film so that both end portions in the width direction are in contact with each other to form an upper surface and a back surface, and bending the overlapping portions of both ends of the back surface;
Sealing said bent portion;
Sealing the vinyl film along the width direction at predetermined length intervals; And
And cutting the vinyl film in the width direction adjacent to the portion sealed in the width direction. The method according to claim 1,
Wherein the vinyl bag is adsorbed on a panel capable of adsorbing the back side of the vinyl bag by the attraction force at the filling standby position. 2. The method of claim 1, wherein maintaining the open state comprises:
The vinyl bag opening slides into the vinyl bag by a predetermined distance; And
Wherein at least one finger of the front end of the vinyl bag opening is unfolded to support the vinyl bag inlet. The method according to claim 1,
Further comprising the step of simultaneously or sequentially sliding back the vinyl bag opening and the push rod after the step of feeding to the sealing portion. delete delete The method according to claim 1,
Further comprising the step of bending both end portions of the vinyl film by pushing the end portions in the width direction where the upper surface and the back surface of the vinyl film meet into the space between the upper surface and the back surface, respectively, after the step of sealing the bent portions How to package the goods. 2. The method of claim 1, wherein after the cutting step,
Adsorbing the cut vinyl bag to a panel having an adsorption force; And
And transferring the adsorbed vinyl bag to the filling standby position. 9. The method of claim 8,
The back surface of the vinyl bag is adsorbed on the panel in the adsorption step,
Wherein the transporting step transports the vinyl bag so that the back face of the vinyl bag faces downward in the filling standby position. A packaging apparatus for packaging an article in a plastic bag,
A vinyl bag forming portion 10 formed from a vinyl film wound in a roll form, the vinyl bag forming portion 10 being composed of two layers of an upper surface and a back surface and forming a vinyl bag having an inlet opening in a first direction;
A transfer unit 190 for transferring the vinyl bag to a position opposite to the direction of the entrance of the article to be filled in the vinyl bag (hereinafter referred to as " second direction ") (hereinafter referred to as" filling standby position ");
A vinyl bag opening (220) operable to slide forward toward the vinyl bag inlet in the second direction to maintain the open state of the vinyl bag inlet; And
And a push rod (231) operable to slide forward in the second direction and push the article through the vinyl bag inlet into the vinyl bag,
The vinyl bag forming portion 10 includes:
A folded back portion 110 for folding the vinyl film so that both end portions in the width direction are in contact with each other to form an upper face and a back face and to bend the overlapping portions of the opposite ends of the back face;
A bottom sealing portion 120 sealing the bent portion;
A widthwise sealing portion 160 sealing the vinyl film along the width direction at predetermined length intervals; And
And a cutting portion (180) for cutting the vinyl film in the width direction adjacent to the portion sealed in the width direction,
Wherein the back bent portion, the backside sealing portion, the widthwise sealing portion, and the cutting portion are sequentially disposed along the advancing direction of the vinyl film. 11. The method of claim 10,
And an adsorption plate (227) disposed at an upper portion of the transfer unit and operable to adsorb an upper surface of the vinyl bag to raise a predetermined height to open the vinyl bag inlet. 11. The method of claim 10,
Wherein the vinyl bag opening and the push rod are operable to simultaneously slide backward simultaneously or sequentially after the forward sliding operation. 11. The method of claim 10,
The push rod 231 slides forward in the second direction and pushes the article into the vinyl bag through the vinyl bag inlet and is operable to transfer the vinyl bag to the sealing portion sealing the vinyl bag inlet (1). 11. The method of claim 10, wherein the vinyl bag opening (220)
A sliding body (221) operable to reciprocally slide in the second direction and the opposite direction;
A pair of conveying guide walls 222 disposed on the sliding body 221 and extending along both sides of the conveying path in the second direction of the article; And
A pair of fingers 223 hinged to the ends of the pair of conveying guide walls 222 in the second direction; And
And a finger drive unit (225) disposed on the sliding main body (221) and driving the pair of fingers (223). 15. The method of claim 14,
When the vinyl bag opening part 220 advances and slides forward to enter the vinyl bag inlet for a predetermined distance, the finger driving part 225 moves the fingers 223 so that the ends of the pair of fingers 223 are spaced apart from each other. 223) is operated to maintain the open state of the vinyl bag inlet. delete delete 11. The method of claim 10,
Side bending portions 130 (130) which are disposed between the back-side sealing portion and the width-direction sealing portion and which push both end portions in the width direction where the upper surface and the back surface of the vinyl film meet, into the space between the upper surface and the back surface, Further comprising: an outlet port for discharging the product to the outside. 19. The method of claim 18,
The transport unit 190 is disposed at the rear end of the cutting unit 180,
The transfer unit 190,
One or more adsorption panels for adsorbing the cut vinyl bag by vacuum adsorption; And
And an adsorption panel moving unit for moving the adsorption panel so that the vinyl bag adsorbed on the adsorption panel is positioned at the filling standby position. 20. The method of claim 19,
The adsorption panel adsorbs the back surface of the vinyl bag,
Wherein the adsorption panel moving unit moves the adsorption panel such that the back face of the vinyl bag faces downward at the filling standby position.

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