JP3168333B2 - Horizontal bag making method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal bag making method and apparatus, and more particularly, to a horizontal bag making and filling method in which a label having an article name, a quality indication and the like is attached to a film formed in a tubular shape. The present invention relates to a bag making method and an apparatus.

[0002]

2. Description of the Related Art Articles to be packaged are sequentially supplied into a cylindrical film formed by passing through a bag making machine, and a superposed surface of a longitudinal edge portion of the cylindrical film enclosing the article. The vertical seal (center seal) is applied to the
Horizontal seal before and after sandwiching tubular film products
2. Description of the Related Art A horizontal bag making and filling apparatus for continuously producing a so-called pillow package by performing (end sealing) and cutting is widely known. Of the items to be packaged, articles such as cooking pans sold in supermarkets, convenience stores, and the like are generally packaged using a transparent film that has not been subjected to printing, and the outer surface of the film has a different surface. A label with the product name, quality indication, bar code, etc. is attached to each product type. Then, when such an article is packed by the horizontal bag making and filling apparatus, after individually wrapping each article, a labeling apparatus connected to the downstream side of the bag making and filling apparatus is used to package the obtained package. A label is attached to the upper surface or the upper surface and the lower surface.

[0003]

As described above, when a label is attached to a packaging film after packaging is completed, it is necessary to provide a guide means for positioning the article and other positioning mechanisms. Therefore, there is a disadvantage that the manufacturing cost is inevitably increased. Further, when the positioning mechanism or the like is installed, for example, in the case of an article such as the cooking pan which is flexible and whose external dimensions are not uniform, even if the positioning of the article is surely performed by the positioning mechanism, the packaging body is not damaged. It has been extremely difficult to attach a label without causing distortion or the like at a fixed position.

[0004] The pillow-packaged article and the packaging film are not packaged in close contact with each other, and the packaged film has a so-called dub on its surface. When a label is stuck to the surface of the film in which dubbing has occurred, there is a problem that wrinkles are stuck at the position where the label is stuck on the film, thereby deteriorating the commercial value.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention has been proposed in order to solve the problem suitably. It is an object of the present invention to provide a horizontal bag-making and filling method and apparatus capable of attaching a label without causing the label to be generated.

[0006]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and appropriately achieve the intended purpose, a horizontal bag-making and filling method according to the present invention uses a bag-like film drawn from a supply source with a bag-making machine. The article is formed into a tubular shape, articles are sequentially supplied into the tubular film via an article supply conveyor, and the longitudinally overlapping edges of the tubular film enclosing the article are vertically sealed, and the longitudinal seal is applied. The transported cylindrical film is transported together with the article to the horizontal sealing mechanism while being supported from below by a transport conveyor, and a label sticking unit is provided at a predetermined position corresponding to the article of the tubular film during the transport of the film. A label on which the product name, quality indication, bar code or expiration date, etc. are written is attached via the, and the horizontal sealing mechanism is used to horizontally seal the front and rear of the tubular film to which the label is attached, before and after the product is sandwiched. And it said that there was Unishi.

[0007] In order to overcome the above-mentioned problems and appropriately achieve the intended purpose, a horizontal bag-making and filling apparatus according to another invention of the present application is provided with an article supply conveyor for supplying articles and a supply from an article supply source. A bag-making device for forming a strip-shaped film into a cylindrical shape, a vertical sealing mechanism for applying a vertical seal to a longitudinally overlapping end portion of the cylindrically-formed film, and a downstream side of the vertical sealing mechanism. A horizontal sealing mechanism that performs horizontal sealing before and after sandwiching the tubular film article, and is disposed to be freely movable between the bag making device and the horizontal sealing mechanism, and supports the tubular film together with the article from below. And a transfer conveyor for transferring the product to the horizontal seal mechanism, and a label sticking portion located downstream of the transfer conveyor, and the article name of the article at a predetermined position of the tubular film corresponding to the supplied article. , Quality display, barcode It is characterized by being composed of a label sticking device for sticking by intermittently drawing out a label expiration date and the like are denoted.

[0008]

The articles are fed at regular intervals by an article supply conveyor into a tubular film which is supplied from a supply source to a bag making machine and formed into a tubular shape. A longitudinal seal is applied to the longitudinally overlapping end portion of the tubular film, and the film is transported together with the articles toward a horizontal sealing mechanism while being supported from below by a transport conveyor. A label is attached via a label attaching means to a predetermined position corresponding to the article on the tubular film during the transfer. That is, since the cylindrical film being transported is transported in a stretched state, the label is stuck without causing distortion, sticking wrinkles, or the like at the position where the label is stuck. Then, the tubular film to which the label has been attached is horizontally sealed before and after the article is sandwiched by the horizontal sealing mechanism.
Cutting is performed. The label sticking means operates at a timing after the detection means detects the article transferred by the transfer conveyor, and sticks the label accurately to the sticking position of the tubular film.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a horizontal bag making method and apparatus according to the present invention will be described with reference to the accompanying drawings, with reference to preferred embodiments. The horizontal bag making and filling apparatus 10 shown in FIG. 1 is configured such that, during the transfer of the tubular film 12a, a predetermined position of the film 12a corresponding to the position of the article 14 supplied at predetermined intervals in the film 12a (adhering position). ) Is attached to the label 18 via the label attaching means 15. The outline of the horizontal bag-making and filling apparatus 10 provided with the label attaching means 15 will be described. As shown in FIG.
The belt-like film 12 pulled out from the raw film roll 30 wound with the required diameter 2 through the feeding rollers 31, 31 of the film feeding mechanism 20 is supplied to the bag making machine 24 to be formed into a cylindrical shape. It has become.

An endless belt conveyor 22 as an article supply conveyor is provided on the upstream side of the bag making machine 24. The conveyor 22 has rollers 29 around which an endless belt 28 is wound.
Is driven to rotate via a drive mechanism (not shown) such as a servomotor. The endless belt conveyor 22 can feed the articles 14 supplied at random intervals from the upstream side toward the cylindrical film 12a formed into a cylindrical shape by the bag making device 24 at regular intervals. I have. As a specific mechanism for feeding the articles 14 supplied at random intervals toward the tubular film 12a at regular intervals, for example, Japanese Patent Publication No. 7-67922
Japanese Patent Application Publication No. 7-67923 and Japanese Patent Publication No. 7-67923 can be used. That is, a pool conveyor driven at a low speed is disposed upstream of the endless belt conveyor 22, and articles 14 supplied from the upstream side to the pool conveyor at random intervals are collected at predetermined intervals by the pool conveyor. An endless belt conveyor 22 driven at a higher speed than the pool conveyor is used as the group of articles.
Thus, the articles 14 can be sent to the tubular film 12a at regular intervals.

It should be noted that a low-speed pool conveyor and a high-speed separation conveyor are arranged in series upstream of the endless belt conveyor 22 so that the endless belt conveyor 22 can receive the articles 14 spaced at regular intervals by the separation conveyor. It may be. Further, as disclosed in, for example, JP-A-8-85705, it is also possible to adopt a configuration in which the articles 14 are fed into the tubular film 12a at regular intervals by a large number of attachments attached to the endless chain at predetermined intervals.

At the downstream side of the bag making machine 24, a feed roller 32 for sandwiching the longitudinal overlapping edge of the cylindrical film 12a and feeding the film 12a toward the downstream side; And a seal member 34 such as a seal roller positioned downstream of the vertical seal mechanism 26 is disposed. Then, the tubular film 1 to which the article 14 is supplied
The longitudinally overlapping end portion 2a is configured to be vertically sealed by the vertical sealing mechanism 26. Downstream of the vertical seal mechanism 26, a transport conveyor 36 that transports the vertically sealed cylindrical film 12a to the downstream side while supporting it together with the article 14 from below is disposed movably. Further, on the downstream side of the transfer conveyor 36, a horizontal sealing mechanism 38 for horizontally sealing the cylindrical film 12a is provided. In the horizontal seal mechanism 38, a pair of upper and lower horizontal sealers 40, 40, which rotate unequally by a driving mechanism (not shown) such as a servomotor, are disposed above and below the cylindrical film 12a, respectively. The horizontal seal mechanism 38 includes a pair of horizontal sealers 4 moved by a drive mechanism (not shown) such as a servomotor.
0, 40 are provided above and below the cylindrical film 12a,
The two horizontal sealers 40 and 40 perform a so-called box motion in which they move to the downstream side in the horizontal direction in a state of being engaged with each other with the tubular film 12a interposed therebetween, and then move away from each other and to the upstream side. It is configured. While the horizontal sealers 40, 40 perform one operation synchronously along the transport direction of the cylindrical film 12a, the film 12a is transported by one cut pitch, so that the article 14 of the tubular film 12a is moved. Before and after sandwiching, horizontal sealing and cutting are performed. In addition, auxiliary conveyors 42, 42 having transfer upper surfaces aligned with the transfer conveyor 36 are disposed on both sides of the cylindrical film 12a in the transfer direction with the horizontal sealers 40, 40 interposed therebetween. The auxiliary conveyors 42, 42 are provided with upper and lower horizontal sealers 4.
When the 0,40 sealing surfaces abut, the horizontal sealers 40,40
A pair of pulleys around which a belt provided at a position close to the pair is separated from each other to allow passage of the lower horizontal sealer 40, and when the two horizontal sealers 40, 40 are separated from each other, When the two pulleys move closer to each other and move to the downstream side in the horizontal direction in a state where both pulleys are engaged with each other, the belt expands and contracts with the movement. And the auxiliary conveyor 4 configured in this manner.
2, 42, the cylindrical film 1 in the horizontal sealing mechanism 38
2a is securely sealed, and the cylindrical film 12a and the article 14 are desirably transferred at the position where the mechanism 38 is disposed.

The label adhering means 15 comprises an upper adhering mechanism 16 disposed on the upper side of the transfer conveyor 36 and a lower adhering mechanism 17 disposed on the lower side. 17, the label 18 is stuck to the sticking position on the upper and lower surfaces of the cylindrical film 12a. Since the basic configurations of the two attaching mechanisms 16 and 17 are the same, only the configuration of the upper attaching mechanism 16 will be described, and the same members of the lower attaching mechanism 17 will be denoted by the same reference numerals. And

As shown in FIG. 2, a label roll 30 on which a release paper 44 is wound with a required diameter is rotatably disposed above the transfer conveyor 36. The label 18 that is printed (noted) on the product name, quality indication, bar code or expiration date, etc., for each product type or production date in the label withdrawal process by the type switching setting of the filling device is spaced at a predetermined interval in the longitudinal direction. It is stuck apart. The release paper 44 is intermittently fed through a guide roller group 50 composed of a plurality of rollers toward a peeling plate 52 serving as a label sticking section, and then another guide roller group composed of a plurality of rollers. It is configured to be wound up by a winding roll 48 connected to a driving source (not shown) via 54. Note that a pressure-sensitive adhesive layer is provided on the back surface of the label 18, and the label 18 is attached to the tubular film 12a via the pressure-sensitive adhesive layer.

The peeling plate 52 is formed of the cylindrical film 1.
It has a triangular shape pointing toward the upper surface of the film 2a, and its sharply formed tip is inclined from the upstream side to the downstream side in a direction approaching the film 12a and is close to the film upper surface. Then, when the release paper 44 is guided by the release plate 52 and the feeding direction thereof is changed at an acute angle, the label 18 attached to the release paper 44 is released. . This peeled label 18
Is attached to the upper surface of the tubular film 12a. The release paper 44 from which the label 18 has been peeled off is wound up by the winding roll 48. In addition, a sponge roller 56 is disposed in proximity to the peeling plate 52 of the upper sticking mechanism 16 on the upper surface of the film 12a at a position slightly separated from the leading end thereof on the downstream side. The sponge roller 56 functions to press the label 18 peeled from the release paper 44 against the tubular film 12a and securely adhere the label 18.

The peeling plate 52 of the upper sticking mechanism 16
Is arranged near the downstream end of the transfer conveyor 36, and the peeling plate 52 of the lower attaching mechanism 17 is arranged at a position separated from the downstream end of the transfer conveyor 36 so as not to interfere with the conveyor 36. That is, the position where the label 18 is attached by the two mechanisms 16 and 17 is set to be located downstream of the transfer conveyor 36.

A sensor 58 serving as a detecting means for detecting the article 14 from the outer surface of the cylindrical film 12a is provided upstream of the position where the peeling plate 52 is provided in the upper attaching mechanism 16. As the sensor 58, for example, a photoelectric type sensor is preferably used, and based on an article detection signal indicating that the sensor 58 has detected the article 14 conveyed on the transport conveyor 36, the label 58 is applied to the cylindrical film 12a. The sticking position is set. Then, the upper and lower sticking mechanisms 16 and 17 are intermittently operated at the timing after the article is detected by the sensor 58, and the tubular film 12 is moved.
Labels 18 are attached to the upper and lower positions to be attached, respectively.

[0018]

Next, the operation of the horizontal bag making and filling apparatus according to the embodiment will be described. As described above, the strip film 12 fed from the film roll 30 is drawn by the feed rollers 31, 31 and supplied to the bag making device 24 to be formed into a tubular shape. Articles 14 are fed into the tubular film 12a at regular intervals by the endless belt conveyor 22, and the longitudinal sealing mechanism 2 is attached to the longitudinally overlapping edge of the film 12a.
At 6, a vertical seal is applied. Further, the cylindrical film 12a to which the vertical seal is applied is transferred to the article 1 by the transfer conveyor 36.
4 and is transported downstream while being supported from below.

Article 1 to be transferred by the transfer conveyor 36
4 is detected by the sensor 58, the upper and lower sticking mechanisms 16, 17 of the label sticking means 15 are activated at the timing after the article detection which is set in advance by a timer or the number of pulses, and the horizontal sealing is performed. Labels 18 are respectively adhered to upper and lower adhered positions of the cylindrical film 12a which do not interfere with the positions. That is, the release paper 44 intermittently fed from the label material roll 46 is used as the guide roller group 5.
0, and is fed toward the peeling plate 52. Then, when the release paper 44 passes through the release plate 52, the attached label 18 is released, and the label 18 is
It is attached to the label attaching position on the upper surface or the lower surface of the tubular film 12a. The release paper 44 that has passed through the peeling plate 52 is taken up by a take-up roll 48 and collected.

That is, since the cylindrical film 12a being transported by the transport conveyor 36 is in a state of being pulled to the downstream side, the label 18 may be distorted on the surface of the film 12a or sticking wrinkles may occur. No sticking, and does not reduce the commercial value. The label 18 stuck on the upper surface of the tubular film 12a by the upper sticking mechanism 16 is pressed against the film 12a by the sponge roller 56 on the downstream side, and secure sticking is achieved.
Further, the label 18 stuck on the lower surface of the tubular film 12a by the lower sticking mechanism 17 is securely stuck by supporting the lower part of the film 12a by the downstream auxiliary conveyor 42.

As described above, the cylindrical film 12a having the labels 18 adhered to the upper and lower surfaces thereof is transferred to the horizontal sealing mechanism 38 via the auxiliary conveyor 42, and the article 14 supplied to the cylindrical film 12a is A horizontal seal / cut is applied to the front and rear positions sandwiching. As a result, a pillow package having high commercial value without distortion or sticking wrinkles at the position where the label 18 is attached can be obtained.

In the embodiment, the label sticking means 15 is constituted by upper and lower sticking mechanisms 16 and 17, and the cylindrical film 12a
In the above description, the label 18 is stuck on both the upper and lower surfaces of the cylindrical film 12a. The label 18 may be attached to only one surface. Further, as the horizontal bag making and filling apparatus, an article supply conveyor for supplying articles at predetermined intervals by an attachment for pushing articles, a film feeding mechanism for drawing out and supplying a film at a constant speed based on a set film cut pitch, and a supply are provided. At a central position between articles supplied to the tubular film so as to be aligned with the position of the article, a horizontal seal mechanism for applying a horizontal seal to the film is provided with an individual motor, and a synchronous drive control is performed. It may be something.

Label 1 on the tubular film 12a
The means for setting the adhering position 8 is not limited to the one disposed on the upstream side of the disposing plate 52 in the upper adhering mechanism 16.
Can be set based on the article detection signal of the sensor 60 disposed on the downstream side of. In addition, this sensor 60
An article 14 sent from the endless belt conveyor 22 to the cylindrical film 12a is detected, and a film feeding mechanism 20 is detected.
And a known mechanism used for synchronously controlling the horizontal seal mechanism 38. In the case where registration marks are printed at predetermined intervals on the belt-shaped film 12 fed from the film roll 30, the setting can be performed based on a detection signal from a sensor disposed at a position where the registration marks pass. Further, in a system in which an individual motor provided in each drive mechanism of the horizontal bag making and filling apparatus is synchronously controlled, a transfer position of the cylindrical film with respect to the article is determined by a synchronization reference signal and a registration mark detection signal from a registration mark sensor. , And a position corresponding to the film position can be set as a sticking position.

The strip film is not limited to a plain film on which printing is not performed, but may be a film having various specifications which require appropriate printing and label sticking. In addition, the method and apparatus of the present application are not limited to articles that are flexible and their external dimensions are not uniform, such as a cooking pan,
It can be used when packaging various articles.

[0025]

As described above, according to the horizontal bag-making and filling method and apparatus of the present invention, during the transfer of the tubular film from after the vertical sealing until the horizontal sealing is performed, the film is filled with the film. Since the label is attached to a predetermined position corresponding to the article, the label is properly aligned. In other words, since the cylindrical film being transported is in a stretched state, the label can be stuck neatly without distortion or sticking wrinkles, and the commercial value can be increased.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a schematic configuration of a horizontal bag making and filling apparatus according to a preferred embodiment of the present invention.

FIG. 2 is an explanatory view schematically showing a label sticking means in the horizontal bag making and filling apparatus according to the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 12 strip film 12 a tubular film 14 article 15 label sticking means 18 label 20 film feeding mechanism 22 endless belt conveyor (article supply conveyor) 24 bag making machine 26 vertical sealing mechanism 30 film roll (supply source) 36 transfer conveyor 38 Horizontal seal mechanism 46 Label roll 52 Release plate (label sticking part) 58 Sensor (detection means)

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-4-31206 (JP, A) JP-A-6-179405 (JP, A) JP-A-61-47334 (JP, A) 67922 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65B 9/06-9/08 B65B 61/02 B65C 3/26

Claims (8)

(57) [Claims] A strip film drawn from a source (30).
(12) is formed into a tubular shape by a bag making machine (24), articles (14) are sequentially supplied into the tubular film (12a) via an article supply conveyor (22), and the article (14) is The longitudinally overlapped edge of the sealed tubular film (12a) is vertically sealed, and the vertically sealed tubular film (12a) is transported together with the article (14) from below using a transfer conveyor (36). While being transported toward the horizontal sealing mechanism (38) while being supported, the article (1) of the cylindrical film (12a) during
At a predetermined position corresponding to 4), a label (18) on which the name of the article (14), a quality indication, a bar code or a shelf life is written, etc. is attached via a label attaching means (15), and the label is attached. Article of tubular film (12a) to which (18) is attached
A horizontal bag-making and filling method, characterized in that a horizontal sealing mechanism (38) is used to horizontally seal the front and rear sides of (14). 2. A method according to claim 1, wherein said detecting means (58) disposed upstream of the label sticking position of said label sticking means (15) detects said article (14). The method according to claim 1, wherein the label (18) is attached to the tubular film (12a) by the method (1). 3. The label (18) is provided on the tubular film (1).
3. The horizontal bag making and filling method according to claim 1, wherein the method is affixed to the upper surface, the lower surface, or both upper and lower surfaces in 2a). 4. The article supply conveyor (22) is configured to feed articles (14) conveyed at random intervals from an upstream side thereof into the tubular film (12a) at regular intervals. The horizontal bag-making and filling method according to claim 1. 5. An article supply conveyor (2) for supplying articles (14).
2), a bag making device (24) for forming the strip-shaped film (12) supplied from the supply source (30) into a tubular shape, and a longitudinally overlapping edge portion of the tubular-shaped film (12a). A vertical seal mechanism (26) for applying a vertical seal to the vertical seal mechanism (26), and a horizontal seal that is provided downstream of the vertical seal mechanism (26) and applies a horizontal seal before and after sandwiching the article (14) of the tubular film (12a). A sealing mechanism (38), disposed so as to be able to run between the bag making machine (24) and the horizontal sealing mechanism (38), supporting the tubular film (12a) together with the article (14) from below. A transfer conveyor (36) for transferring toward the horizontal sealing mechanism (38); At a predetermined position of the tubular film (12a) corresponding to the above, a label (18) on which the name of the article (14), a quality indication, a bar code or a shelf life is written is intermittently pulled out and attached. Means (1 Five)
And a horizontal bag making and filling apparatus. 6. The horizontal type product according to claim 5, wherein the label sticking means (15) is configured to be able to stick a label (18) on an upper surface, a lower surface, or both upper and lower surfaces of the tubular film (12a). Bag filling equipment. 7. A detecting means (58) for detecting an article (14) supplied in a tubular film (12a) is provided upstream of a label sticking position of the label sticking means (15). , The detection means
The tubular film of the label (18) according to the article detection signal of (58)
7. The horizontal bag-making and filling apparatus according to claim 5, wherein an attachment position for (12a) is set. 8. The article supply conveyor is an endless belt conveyor (22), and receives articles (14) conveyed at random intervals from the upstream side and places the articles (14) on a cylindrical film (12a) at regular intervals. The horizontal bag making and filling apparatus according to any one of claims 5 to 7, further comprising a control mechanism capable of feeding in the endless belt conveyor (22) or conveyor means connected to an upstream side thereof.