JP4675520B2 - Accessory supply device for vertical pillow packaging machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an accessory supply apparatus applicable to a vertical pillow packaging machine, and in particular, to supply an accessory to be packaged simultaneously with a product into a bag package manufactured by the vertical pillow packaging machine. Relates to the device.
[0002]
[Prior art]
Conventionally, in a packaging machine for bag-packing products, a vertical pillow packaging machine is well known as a vertical bag-filling and packaging machine that enables automatic high-speed packaging. FIG. 6 is a side view showing an example of a conventional vertical pillow wrapping machine. The vertical pillow wrapping machine 1 is a cylinder making machine provided around a filling cylinder 3 having a hopper 2 attached to the upper end. The web-shaped packaging film Fw is formed into a tube-shaped packaging film by the former 4 and the vertical sealer 5 disposed in the vicinity of the filling cylinder 3 heat-seals the side edges of the packaging film and attaches it back. The cylindrical packaging film Ft is formed by forming the seal portion S1. Below the filling cylinder 3, a horizontal sealer 6 is disposed which is heat-sealed in a direction crossing the cylindrical packaging film Ft to form a horizontal seal portion (top and bottom seal portion) S2. By operating the horizontal sealer 6, the bag package P is manufactured by sealing the opening a of the bag B ₁ formed in advance from the cylindrical packaging film Ft and charged with the product A to be packaged from the hopper 2. At the same time, the formation of the bag bottom b and the subsequent bag B ₂ to which the product A is to be charged are repeated. The cylindrical packaging film Ft is arranged in relation to the filling cylinder 3 and is a belt-type feeding mechanism that sandwiches the cylindrical packaging film Ft between the outer circumference surface of the filling cylinder 3 and the cylindrical packaging film for heat sealing. This is performed by an operating mechanism (none of which is shown) that causes the horizontal sealer 6 to perform box motion with Ft sandwiched therebetween.
[0003]
In order to maintain the quality and freshness of product types, especially foods, bags are packaged with the accessory C containing preservatives such as oxygen scavengers and desiccants inside the bag. ing. In order to perform packaging with the accessory C contained in the bag B, the accessory C is introduced from the hopper 2 in the same manner as the product A is introduced into the already formed bag B ₁ . The method is adopted. Further, the inside of the hopper 2 is divided into a charging part for the product A and a charging part for the accessory C by a partition plate (not shown), and the accessory C introduced from the charging part through the filling cylinder 2 is stored in the bag B. It is also sent to a predetermined part as much as possible. The accessory input portion formed by the partition plate is provided so as to correspond to the back-sealed seal portion S1 side formed by the vertical sealer 5. Furthermore, it is also considered that the position of the genus C in the bag B is further stabilized by extending the guide rail 7 from the partition plate into the filling cylinder 2.
[0004]
However, in these methods, the accessory C is not necessarily put into a certain position in the bag B. That is, even if the accessory C is introduced toward the back sticker S1 side of the bag B while being guided in the filling cylinder 3 by the guide rail 7, the accessory C is not guided in the bag B. The position of the appendage C after entering it is not necessarily constant. As shown in FIG. 6, the accessory C may be buried in the product A in the bag package P and cannot be confirmed from the outside that it is put in the bag B. Moreover, the accessory C may be located in the front side on the opposite side to the side in which the back sticking seal | sticker part S1 of the bag packaging body P exists. Such a bag package P reduces appearance and commercial value, and in particular, the accessory C that is hidden in the product A may cause erroneous eating. Depending on the product A, it may be an indispensable condition to place the accessory C on the back sticker S1 side of the bag B. In this case, the accessory is manually inserted. Currently.
[0005]
In order to ensure that the attachment position of the accessory in the bag is on the back-sealed seal side, conventionally, the bag is not used for the web-like packaging film before the adhesive is applied to the freshness holder and the tubular packaging film is formed. It is considered to adhere to a portion on the inner side and the side where the back-sealed seal portion is formed by means such as an adhesive (see, for example, Japanese Patent Publication No. 7-110649). ). This method requires a device for attaching the attachment to the packaging film, which causes an increase in cost, and it is difficult to accurately control the attachment position of the attachment, and there is also annoyance to cope with a change in the packaging specification.
[0006]
[Problems to be solved by the invention]
Therefore, in a vertical pillow packaging machine that continuously manufactures a bag package by repeatedly forming a bag from a packaging film and filling a product into the bag, an accessory to be put into the bag together with the product is provided. In order to effectively solve the problem of packaging in an unintended position in the bag package, the accessory is supplied to the back-sealed seal side of the bag with a simple structure. There is a problem to be solved in devising the supply of accessories that make it possible.
[0007]
An object of the present invention is to provide a vertical pillow packaging machine that continuously manufactures a bag package by repeatedly forming a bag from a packaging film and filling a product into the bag. By guiding the supply, it is possible to reliably supply to a predetermined position in the bag with a simple structure on the back-sealed seal portion side. For example, when the product is food, the accessory is attached to the bag. It is intended to provide an accessory supply device that is placed on the back side to prevent accidental eating of the accessory.
[0008]
[Means for Solving the Problems]
An accessory supply apparatus in a vertical pillow packaging machine according to the present invention forms a bag from a cylindrical packaging film that travels on the outer periphery of a filling cylinder for charging a product, and inputs the product into the bag through the filling cylinder. In the vertical pillow packaging machine that continuously manufactures the bag package by repeating the formation of the bag and the introduction of the product, the filling cylinder is attached with a cylindrical guide for adding the accessory, At the tip of the cylindrical guide, there is provided an elastic plate for holding the added accessory and allowing the accessory to descend together with the product in the bag when the bag is lowered. It has the structure of.
[0009]
According to the accessory supply device in this vertical pillow packaging machine, as in the conventional pillow packaging machine, the packaging film is run around the outer periphery of the filling cylinder, and the bag is formed and the product is put into the bag. The bag package is continuously manufactured. The cylindrical guide attached to the filling cylinder is charged with an accessory to be packaged simultaneously with the product in the bag. The thrown-in accessory is guided and lowered by the cylindrical guide, and is guided and held in the bag by an elastic plate attached to the tip of the cylindrical guide and extending along the inner surface of the bag. It is sent into the bag via a different route. As the bag descends as the packaging process progresses, the elastic plate allows the appendage to descend with the product filled with the appendage, so that the appendage is fed into the bag along its inner surface, Packaged in a bag with the product.
[0010]
In the accessory supply apparatus in the vertical pillow packaging machine, the vertical pillow packaging machine is disposed on the side of the filling cylinder and forms the cylindrical packaging film by forming a back-sealed seal portion on the packaging film. A vertical sealer, and a horizontal sealer that seals in the direction transverse to the tubular packaging film and seals the opening of the preceding bag to produce the bag package and to form the subsequent bag. The cylindrical guide is disposed on the side of the filling cylinder facing the vertical sealer, and the elastic plate extends along the inner side of the back-sealed seal portion of the bag. That is, the packaging film is formed on the cylindrical packaging film by forming the back-sealed seal portion with the vertical sealer disposed on the side of the filling cylinder, and the bag formed in advance from the cylindrical packaging film. The product is introduced through the filling cylinder, and the horizontal sealer seals the opening of the bag in which the product is introduced to form a bag package and forms a subsequent bag from the cylindrical packaging film. The cylindrical guide for throwing in the accessory is provided on the side of the filling cylinder facing the vertical sealer. Correspondingly, the elastic plate runs along the bag inner surface on the side where the back-sealed seal portion of the bag is formed. The accessory is packaged together with the product in a state of being placed on the side where the back-sealed seal portion of the bag exists (the back side of the bag).
[0011]
The cylindrical guide is formed to extend to the outer side of the filling cylinder facing the vertical sealer until it reaches its lower end, in an accessory supply apparatus in a vertical pillow packaging machine having a vertical sealer and a horizontal sealer. It is attached to the vertical slit in a fitted state. When the accessory supply apparatus is configured in this manner, the cylindrical guide is fitted in the vertical slit formed in the outer portion of the filling cylinder, and therefore the cylindrical guide is disposed around the filling cylinder. There is no hindrance to the running of the packaging film on the outer side of the filling cylinder. In addition, the cylindrical guide is for charging accessories, and is smaller in size than the filling cylinder, so that the inside of the filling cylinder interferes with product filling by forming a slit. not.
[0012]
In the accessory supply apparatus in the vertical pillow packaging machine, the length of the elastic plate extending in the bag can be a depth that is half or more of the vertical length of the bag. Setting the length of the elastic plate in this way ensures that the attachment is not supplied to the bottom of the bag that is buried in the product or to the top of the bag where the product may not necessarily exist. The product is supplied to the center of the bag where the product is filled.
[0013]
In the accessory supply apparatus in the vertical pillow packaging machine, the elastic plate can be constituted by two metal spring plates that are arranged substantially parallel to the inner surface of the bag and can sandwich the accessory. . By making the elastic plate into two metal spring plates arranged substantially parallel to the inner surface of the bag, the accessory can be reliably supplied into the bag in a state where it can be sandwiched between the two metal spring plates. It becomes possible.
[0014]
In the accessory supply apparatus in the vertical pillow packaging machine, the elastic force of the elastic plate holds the supplied accessory in a state where a part of the charging destination side protrudes, and as the bag descends. It is preferable to set the size to allow the accessory to be pulled down while being sandwiched between the product and the bag. By setting the elastic force of the elastic plate in this manner, the elastic plate can be held in a state in which the accessory thrown into the cylindrical guide is partly pushed out by the downward force. In addition, as the bag descends as the packaging process progresses, the attached part of the appendage enters the state where it is sandwiched between the product and the bag, and is pulled from the elastic plate together with the bag and product. Lowered and fed into the bag.
[0015]
In addition, a feeding means for feeding the accessory can be connected to the upper end of the cylindrical guide. A chute or a duct can be used as the feeding means. A hopper for charging the product can be provided at the upper end of the filling cylinder, but in this case, the accessory is not thrown through the hopper and the product is put into the bag from the hopper through the filling cylinder. It is sent while being guided into the bag through another route.
[0016]
Furthermore, in the accessory supply apparatus in this vertical pillow packaging machine, the accessory can be a bag package in which the freshness-preserving agent of the product to be packaged is packaged in a breathable manner. An oxygen scavenger that absorbs oxygen causing food oxidation when the product is a food, a desiccant that absorbs moisture, and the like can be mentioned. In addition, as an accessory, not only a freshness preservation agent but spices, additives, etc. related to products that are foods, product instructions, accessories, and the like can be used.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an accessory supply device in a vertical pillow packaging machine according to the present invention will be described with reference to the accompanying drawings. 1 is a front view showing an embodiment of an accessory supply apparatus in a vertical pillow packaging machine according to the present invention, FIG. 2 is a side view of the accessory supply apparatus in the vertical pillow packaging machine shown in FIG. 1, and FIG. 2 is a cross-sectional view taken along a plane AA in FIG. 2, and FIG. 4 is an enlarged perspective view showing a distal end portion and an elastic plate of a cylindrical guide constituting the accessory supply apparatus shown in FIG. Note that the vertical pillow packaging machine itself, excluding the supply of accessories, has the same structure as the vertical pillow packaging machine described as a conventional one in FIG. Detailed description will be omitted by adding reference numerals.
[0018]
In the accessory supply apparatus shown in FIGS. 1 and 2, a vertical slit 10 is formed along the longitudinal direction of the filling cylinder 3 on the side of the outer periphery of the filling cylinder 3 facing the vertical sealer 5. Instead of the vertical slit 10, the groove may be formed by die drawing or the like for a metal filled cylinder material. The vertical slit 10 is formed to extend straight from an appropriate height position below the hopper 2 until it reaches the lower end 3 a of the filling cylinder 3. The appendage C is composed of a relatively flat sachet package that is packaged with an oxygen scavenger and a desiccant and is air permeable to the outside. The cylindrical guide 11 that guides the insertion of the appendage C is composed of a metal flat rectangular pipe that takes into account the shape of the appendage C, and the square pipe has a cross-sectional shape set to fit into the vertical slit 10. Has been. The cylindrical guide 11 is attached by a fixing means such as a weld 14 while being accommodated in the vertical slit 10. In addition, tension springs 8 and 8 that help the bag B to open in the lateral direction by extending the cylindrical packaging film from the inside in the direction along the lateral seal portion S2 extend obliquely downward at the lower end 3a of the filling cylinder 3. It is provided as follows.
[0019]
The combined outline of the filling cylinder 3 and the cylindrical guide 11 is substantially equal to the circular outline of the original filling cylinder material before the vertical slit 10 was formed, and the cylindrical guide 11 is circular in cross section. It is not in a state of projecting outward from the outline of. Therefore, the cylindrical guide 11 has no trouble in traveling the cylindrical packaging film Ft. Further, since the cylindrical guide 11 is flat and small compared to the filling cylinder 3, the longitudinal slit 10 is not so narrow that the inside of the filling cylinder 3 obstructs the passage of the product A. There is no problem in filling the product A.
[0020]
A feeding means 15 such as a chute or a duct for feeding the appendage C can be connected to the upper end portion 12 of the cylindrical guide 11. Since the feeding means 15 is attached without any special relation to the hopper 2, the appendage C can be fed completely separately from the product A put into the bag B from the hopper 2 through the filling cylinder 3.
[0021]
The cylindrical guide 11 has a lower end 13 that is set to a length that extends to the same position as the lower end 3 a of the filling cylinder 3. An elastic plate 16 made of two metal spring plates 17a and 17b having corrosion resistance such as stainless steel is attached to the lower end portion 13 of the cylindrical guide 11. The two metal spring plates 17a and 17b constituting the elastic plate 16 are arranged in parallel with the inner surface region D positioned in the immediate vicinity of the back-bonded seal portion S1 of the bag B. By configuring the elastic plate 16 in this way, when the product A is filled with the appendage C, the cylindrical guide 11 is inserted and guided to the position between the two metal spring plates 17a and 17b. The bag B is reliably supplied in a state along the region D (FIG. 1) on the inner surface of the bag B on the back-sealed seal portion S1 side.
[0022]
The length Le that the elastic plate 16 extends from the lower end portion 13 in the bag B is preferably set to a depth that is half or more of the longitudinal length Lb of the bag B. Therefore, the elastic plate 16 extends to a half height position, with the distance between the lower end portion 3a of the filling cylinder 3 and the height position where the horizontal sealer 6 is disposed being substantially the bag length Lb. Is in a state. Further, when the product A is food, the elastic plate 16 is preferably a spring plate made of stainless steel for the purpose of avoiding foreign matter contamination, but depending on the properties of the product A, a synthetic resin rubber Obviously, it may be constituted by a plate.
[0023]
The operation of the embodiment of the present invention configured as described above will be described below with reference to FIG. The cylindrical guide 11 is substantially contained within the circular outline of the original material of the filling cylinder 3 and the elastic plate 16 is easily bent and deformed, so that the cylindrical packaging film Ft is placed on the outer peripheral surface of the filling cylinder 3. When sending while guiding, the cylindrical guide 11 and the elastic plate 16, which are the main components of the accessory supply device, do not cause large running resistance. When the bag bottom B is formed by the horizontal sealer 6 to form the bag B _{2, the} elastic plate 16 composed of the two metal spring plates 17 a and 17 b has the back-sealed seal portion S 1 of the bag B ₂ more than the product A. It is located close to the inner surface on the back side of the formed bag B. The elastic plate 16 composed of the two metal spring plates 17a and 17b is in a state where the depth is more than half of the bag B ₂ between the back side of the bag B ₂ and the filled product A.
[0024]
Timed for the formation of the bag B _2, appendages C is fed into the tubular guide 11 from infeed means 15. The appendage C fed into the cylindrical guide 11 descends while being guided in the cylindrical guide 11, and due to the descending momentum, a part on the input side jumps out from the elastic plate 16, and in this state It is sandwiched and held between the elastic plates 16 (FIG. 5A). Since the elastic plate 16 closes the lower end portion 13 (supply port of the accessory C) by its elastic force, even if the accessory C descends from the cylindrical guide 11 into the metal spring plates 17a and 17b, the bag B still remains. ₂ is not supplied. Therefore, the accessory C is not packaged in a state where it is buried in the product A due to being supplied early.
[0025]
Appendage C is in accordance with a timing that is held by the elastic plate 16 in the bag B _2, Product A was thrown into the hopper 2 is filled into the bag B ₂ through the filling tube 3. The product A filled in the bag B ₂ applies pressure G to the inner surface of the bag B ₂ due to its own weight. B and product A are sandwiched (FIG. 5B). In accordance with the filling timing of the product A into the bag B, the cylindrical packaging film Ft is fed by the length of one packaging unit as the packaging process proceeds, and the bag B ₂ is lowered by a distance corresponding to the length. To do. At this time, appendage C, along with the feeding of the bag B ₂ pulled down in a state of being sandwiched between the inner surface of the product A and the bag B ₂ region (Fig. 5 (c)). Since power drawn down by setting the elastic force of the elastic plate 16 is overcome the pinching force of the elastic plate 16, appendage C is supplied freed from elastic plate 16 into the bag B _2.
[0026]
The accessory C is in a state of being pressed against the inner surface of the bag B ₂ existing in the immediate vicinity of the back-sealed seal portion S1 due to the pressure from the product A. Since the length Le of the elastic plate 16 extending from the lower end portion 13 of the cylindrical guide 11 is set to more than half of the depth of the longitudinal length Lb of the bag B _2, appendages C is fed into the bottom of the bag B ₂ Without being buried in the product A or being supplied to the upper part of the bag B ₂ where the product A may not exist, it is reliably supplied near the center height of the bag B ₂ filled with the product A. . The bag B ₂ is sealed when the opening a is heat-sealed with the horizontal sealer 6 in this state, and the bag package P is completed.
[0027]
As described above, the accessory C is supplied through a path different from the product A to the bag B ₂ (hereinafter referred to as the bag B for simplification), which is the final stage of the supply path, together with the product A. Packaged in bag B. The supply position of the accessory C to the bag B does not depend on the filling state of the product A. As shown in FIGS. It can be the height position. Further, the accessory C is always supplied to a specific side in the bag B without being influenced by the filling state of the product A. As a result, when the accessory C is supplied to the back sticker S1 side, the accessory C cannot be found on the front side of the bag package P, and the appearance of the bag package P is improved. The accessory C is present on the side where the back-sealed seal portion S1 that is the back side of the bag wrapping P is formed, in the position just inside the packaging film and near the center of the height of the bag wrapping P. It can be easily confirmed. Further, when the product is a food, the appendage C located on the back-sealed seal portion S1 on the back side of the bag B is recognized as being normally uneatable, and does not induce erroneous eating. In addition, unlike the freshness-keeping agent, when it is desired that the consumer C consciously recognize the accessory C with respect to the product A, the accessory C may be supplied to the front side of the bag B. In this case, the cylindrical guide 11 is attached to the filling cylinder 3 on the side opposite to the side on which the vertical sealer 5 forming the back-sticking seal S1 is disposed.
[0028]
【The invention's effect】
Since the accessory supply apparatus in the vertical pillow packaging machine according to the present invention is configured as described above, the following effects can be obtained. According to the accessory supply apparatus in this vertical pillow packaging machine, the supply of the product and the accessory into the bag is performed through separate paths up to the final stage of the bag. That is, the supply of the accessory into the bag is reliably supplied into the bag through a path different from the product introduction until the final stage of the bag, by the guide by the cylindrical guide and the elastic plate. In an automatic high-speed packaging machine called packaging, the accessory can be reliably supplied to a predetermined side of the bag and packaged with the product at that position without being affected by the state of filling the product into the bag. Therefore, for example, when packaging with the accessory placed on the back-sticking seal S1 side of the bag package, the supply position of the accessory can be easily seen on the back side of the bag by supplying the cylindrical guide and the elastic plate. Therefore, it is possible to improve the appearance and enhance the commercial value of the bag package by not placing an accessory on the front side of the bag package. In addition, any bag package can be easily checked for the presence or absence of an accessory by looking at the back side of the bag packaging body, which is one measure for preventing accidental eating.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of an accessory supply apparatus in a vertical pillow packaging machine according to the present invention.
2 is a side view of an accessory supply apparatus in the vertical pillow packaging machine shown in FIG. 1. FIG.
3 is a cross-sectional view taken along a plane AA in FIGS. 1 and 2. FIG.
4 is a perspective view showing a distal end portion of a cylindrical guide and an elastic plate constituting the accessory supply apparatus shown in FIG. 1. FIG.
5 is an explanatory view showing an accessory supply process in the vertical pillow packaging machine shown in FIG. 1; FIG.
FIG. 6 is a side view showing an example of an accessory supply apparatus in a conventional vertical pillow packaging machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical pillow packaging machine 2 Hopper 3 Filling cylinder 3a Lower end part 5 of a filling cylinder Vertical sealer 6 Horizontal sealer 10 Vertical groove 11 Cylindrical guide 13 Lower end part 15 of cylindrical guide Feeding means 16 Elastic plate 17a, 17b Metal spring plate Fw web-like packaging film Ft tubular packaging film A product B bags (B ₁ prior bag, B ₂ subsequent bag)
C Attachment D Region of packaging film close to back-sealed seal portion S1 Back-sealed seal portion S2 Top-and-bottom seal portion Lb Bag height Le Elastic plate depth P Bag package

Claims (8)

A bag is formed from a cylindrical packaging film that runs on the outer periphery of a filling cylinder for charging a product, and the product is introduced into the bag through the filling cylinder, and the formation of the bag and the introduction of the product are repeated. In a vertical pillow packaging machine for continuously producing a bag package, a cylindrical guide for inserting the accessory is attached to the filling cylinder, and the attached accessory is attached to a tip of the cylindrical guide. An accessory supply device in a vertical pillow packaging machine, comprising an elastic plate that holds the accessory and allows the accessory to descend with the product in the bag when the bag is lowered. The vertical pillow packaging machine traverses the cylindrical packaging film and a vertical sealer that is disposed on the side of the filling cylinder and forms the cylindrical packaging film by forming a back-sealed seal portion on the packaging film. A transverse sealer that seals in the direction and seals the opening of the preceding bag to produce the bag package and forms the succeeding bag, and the cylindrical guide is provided in the longitudinal direction of the filling cylinder. 2. The accessory supply device for a vertical pillow packaging machine according to claim 1, wherein the accessory plate is disposed on the side facing the sealer, and the elastic plate extends along the inner side of the back-sealed seal portion of the bag. The vertical guide according to claim 2, wherein the cylindrical guide is attached to a vertical slit formed to extend to an outer portion of the filling cylinder facing the vertical sealer so as to reach a lower end thereof. Accessory supply device for pillow packaging machines. The accessory in the vertical pillow packaging machine according to any one of claims 1 to 3, wherein the elastic plate extends in the bag at a depth that is at least half of the longitudinal length of the bag. Feeding device. The said elastic board is comprised from the metal spring board of 2 sheets which can be arranged in parallel with the inner surface of the said bag, and can pinch | interpose the said attachment. The accessory supply apparatus in the vertical pillow packaging machine described in 1. The elastic force of the elastic plate holds the thrown-in accessory in a state where a part of the thrown-out side protrudes, and the accessory moves between the product and the bag as the bag descends. The accessory supply apparatus in the vertical pillow packaging machine according to any one of claims 1 to 5, wherein the accessory supply apparatus is set to have a size that allows it to be pulled down while being sandwiched therebetween. The accessory supply apparatus in the vertical pillow packaging machine according to any one of claims 1 to 6, wherein a feeding means for feeding the accessory is connected to an upper end portion of the cylindrical guide. The said accessory is an accessory supply apparatus in the vertical pillow packaging machine of any one of Claims 1-7 which consists of a bag packaging body which packaged oxygen absorber and a desiccant so that ventilation | gas_flowing was possible.

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