JP2021054459A - Packing method in paper feeding packing machine and paper feeding packing machine - Google Patents

Abstract

To provide a packing method in a paper feeding packing machine, which can more surely suppress overflowing or scattering of a currently moving packed article by a simple operation, achieve a higher speed of the paper feeding packing machine without moving acceleration limited, and pack a greater volume within a short time, and the paper feeding packing machine.SOLUTION: This packing method in the paper feeding packing machine P packs an article to be packed through packing steps respectively executed by intermittent movement of a packing bag F together with a moving body 32 through packing stations 1-9. The packed article filling step of filling the packing bag F with the packed article is carried out at a packed article filling station 5 where the packed article filling step is executed among the packing stations 1-9, and then both sides of the packing bag F in a width direction are brought closer toward the inside, and inner surfaces near a bag mouth are brought close to or in contact with each other before movement to the next packing station 6.SELECTED DRAWING: Figure 10

Description

In the present invention, after filling a packaging bag with an object to be packaged such as food, the bag mouth is sealed to carry out a packaging method in a bag-feeding packaging machine for mass-producing products and bag-feeding packaging for carrying out the packaging method. It's about the machine.

Conventionally, a bag-feeding packaging machine for packaging an object to be packaged by intermittently moving a packaging bag together with a moving body to each packaging station and performing each packaging process has been widely used.
In such a bag-feeding packaging machine, when the object to be packaged is, for example, a liquid, if the moving acceleration to the next packaging station exceeds about 10 m / S ^ 2, the packaged object in the packaging bag spills during the movement. Or scatter. Therefore, the moving acceleration could not be increased to about 10 m / S ^ 2 or more.

Specifically, in a conventional bag-feeding and packaging machine, for example, as shown in FIG. 15 (A), a filling funnel 86 is inserted into the bag mouth of a packaging bag F in which both ends are gripped by a grip pair 81 to be packaged. The packaging bag is filled with an object, and as shown in FIG. 15 (B), the bag opening of the packaging bag F is left open, and as shown in FIG. 15 (C), the packaging bag is being moved to the next packaging station. The bag mouth of F was closed.

In addition, when it is necessary to reopen the bag opening of the packaging bag F after the next packaging station (for example, degassing the inside of the packaging bag by steam, or adhering to the inner surface of the bag opening when the object to be packaged is powder). When the powder is blown off, etc.), as shown in FIG. 16 (A), the filling funnel 86 is inserted into the bag mouth of the packaging bag F in which both ends are gripped by the grip pair 81 to fill the object to be packaged. Then, with the bag mouth of the packaging bag F open as shown in FIG. 16 (B), the packaging bag is being moved to the next packaging station (steam degassing station) as shown in FIG. 16 (C). The bag mouth of F was moved with the bag mouth open, and as shown in FIG. 16D, steam degassing was performed at the next packaging station (steam degassing station). For this reason, the object to be packaged in the packaging bag spills or scatters during the movement to the next packaging station, which limits the moving acceleration and hinders the speeding up.

Then, as a solution to these problems, the applicant first performs the packaging bag filling step of filling the packaging bag with the packaged object, and then the packaging bag before moving to the next packaging station. We proposed a packaging method that closes the bag mouth and a bag-feeding packaging machine to which the method is applied. Further, when the packaging station on the downstream side of the package filling station has an opening-required packaging process that requires the opening of the packaging bag opening, the packaging station that performs the opening-requiring packaging process opens the packaging bag opening. Later, the opening-required packaging process was performed, and a packaging method for closing the bag mouth of the packaging bag before moving to the next packaging station and a bag-feeding packaging machine to which the method was applied were proposed (WO / 2018/185873). reference).

WO / 2018/185873

The above method and the bag-feeding packaging machine are also effective, but the applicant recalls a method that can more reliably suppress the spillage and scattering of the object to be packaged during movement with a simpler operation, and a packaging machine to which the method is applied. The present invention has been completed. That is, the object of the present invention is to realize a simpler operation and more reliable suppression of spillage and scattering of the object to be packaged during movement, and to realize high speed of the bag-feeding packaging machine without limiting the movement acceleration. It is an object of the present invention to provide a wrapping method in a bag wrapping machine capable of packaging a larger amount in a short time and a bag wrapping machine to which the wrapping method is applied.

What solves the above-mentioned problems is a packaging method in a bag-feeding packaging machine in which each packaging process is performed by intermittently moving the packaging bag together with a moving body at each packaging station, and the object to be packaged is packaged. Among the stations, at the package filling station where the package filling step is performed, after performing the package filling step of filling the packaging bag with the packaged object, before moving to the next packaging station. In addition, it is a packaging method in a bag-feeding packaging machine, characterized in that both sides in the width direction of the packaging bag are brought inward to bring the inner surfaces near the bag mouth close to each other or come into contact with each other (claim 1).

The packaging method in the bag-feeding packaging machine performs the opening-requiring packaging step when the packaging station on the downstream side of the package filling station has an opening-requiring packaging step requiring the opening of the bag mouth of the packaging bag. After opening the opening of the packaging bag at the packaging station, the opening-required packaging step is performed, and both sides of the packaging bag in the width direction are directed inward before moving to the next packaging station. It is preferable that the inner surfaces near the bag mouth are brought close to each other or brought into contact with each other (claim 2). The opening-required packaging step may be a steam degassing step in which steam is introduced from the bag mouth of the packaging bag to degas the inside of the packaging bag (claim 3). At the package filling station, it is preferable that the package filling step and the steam degassing step of inflowing steam from the bag mouth of the packaging bag to degas the inside of the packaging bag are performed (claim 4). ). At the package filling station, it is preferable that the package filling step and the steam degassing step are performed at the same time (claim 5). At the package filling station, the steam degassing step may be performed after the package filling step is performed (claim 6).

Further, what solves the above-mentioned problems is a bag-feeding packaging machine in which each packaging process is performed by intermittently moving the packaging bag together with the moving body at each packaging station to wrap the object to be packaged. The machine has a bag mouth opening / closing mechanism for opening / closing the bag mouth of the packaging bag, and among the packaging stations, the packaged material filling station in which the packaged material filling step is performed has the said in the packaging bag. Filling the packaged object After performing the packaged object filling step, before moving to the next packaging station, the bag mouth opening / closing mechanism brings both sides of the packaging bag inward in the width direction to the bag. A bag-feeding and wrapping machine characterized in that the inner surfaces in the vicinity of the mouth are brought close to each other or brought into contact with each other (claim 7).

When the bag-feeding packaging machine performs an opening-required packaging step (a step requiring re-opening) of the packaging bag at the packaging station on the downstream side of the package filling station, the opening is required. At the packaging station where the packaging process is performed, after the bag mouth of the packaging bag is opened by the bag opening opening / closing mechanism, the opening required packaging process is performed, and the bag is before moving to the next packaging station. It is preferable that both sides of the packaging bag in the width direction are brought inward along the width direction by the mouth opening / closing mechanism so that the inner surfaces in the vicinity of the bag mouth come close to each other or come into contact with each other (claim 8). .. The opening-required packaging step may be a steam degassing step in which steam is introduced from the bag mouth of the packaging bag to degas the inside of the packaging bag (claim 9). The package filling station is configured to perform the package filling step and the steam degassing step of inflowing steam from the bag mouth of the packaging bag to degas the inside of the packaging bag. Is preferable (claim 10). It is preferable that the package filling station is configured to simultaneously perform the package filling step and the steam degassing step (claim 11). The packaged material filling station may be configured to perform the steam degassing step after performing the packaged material filling step (claim 12). It is preferable that the bag-feeding packaging machine has a grip pair that grips both sides of the packaging bag in the width direction and intermittently moves each packaging station together with the moving body (claim 13). The bag mouth opening / closing mechanism may have a grip width adjusting mechanism that allows the width between the grip pairs to be adjusted, and a suction cup that sucks the packaging bag gripped by the grip pairs from the front and back, respectively. Preferred (claim 14).

According to the packaging method in the bag-feeding packaging machine according to claim 1, during movement, both sides of the packaging bag in the width direction are brought inward to bring the inner surfaces near the bag mouth close to each other or in contact with each other. , Spilling and scattering of the packaged object can be suppressed more reliably with a simpler operation, and the speed of the bag-feeding packaging machine can be realized without limiting the movement acceleration, and a larger amount can be obtained in a short time. Packaging is possible.
According to the packaging method in the bag-feeding packaging machine according to claim 2, even if the packaging station on the downstream side of the object filling station has an opening-required packaging process that requires the opening of the packaging bag mouth, the packaging bag can be used. Since both sides in the width direction are moved inward to bring the inner surfaces near the bag mouth close to each other or in contact with each other, spilling or scattering of the packaged object can be suppressed more reliably and with a simpler operation, and the movement acceleration is limited. It is possible to realize a high-speed bag-feeding and packaging machine without receiving a load, and a larger amount of packaging can be performed in a short time.
According to the packaging method in the bag-feeding packaging machine according to claim 3, for example, even when mass-producing retort-packed foods to be steam-degassed, the movement acceleration is limited by the spilling or scattering of the packaged object during movement. It is possible to increase the speed of the bag-feeding and packaging machine, and it is possible to wrap a larger amount in a short time.
According to the packaging method in the bag-feeding packaging machine according to claim 4, the number of packaging stations for steam degassing can be reduced, the bag-feeding packaging machine can be made faster, and a larger amount of packaging can be performed in a shorter time. ..
According to the packaging method in the bag-feeding packaging machine according to claim 5, by simultaneously filling the packaging bag with the object to be packaged and steam degassing, the bag-feeding packaging machine can be made faster and shorter. Allows for larger packaging.
According to the packaging method in the bag-feeding packaging machine according to claim 6, the number of packaging stations for steam degassing can be reduced, the bag-feeding packaging machine can be made faster, and a larger amount of packaging can be performed in a shorter time. ..
According to the bag-feeding and wrapping machine according to claim 7, during movement, both sides of the wrapping bag in the width direction are brought inward to bring the inner surfaces near the bag mouth close to each other or in contact with each other. Spilling and scattering of objects can be suppressed more reliably with a simpler operation, and the speed of the bag-feeding and packaging machine can be increased without limiting the movement acceleration, enabling a larger amount of packaging in a short time. It becomes.
According to the bag-feeding packaging machine according to claim 8, even if the packaging station on the downstream side of the package filling station has an opening-required packaging process that requires the opening of the bag mouth of the packaging bag, the width direction of the packaging bag Since both sides are brought inward and the inner surfaces near the bag mouth are brought close to each other or in contact with each other, spilling or scattering of the packaged object can be suppressed more reliably and with a simpler operation, and the movement acceleration is limited. It is possible to realize a high-speed bag-feeding and packaging machine, and a larger amount of packaging can be performed in a short time.
According to the bag-feeding packaging machine according to claim 9, for example, even in the case of mass-producing retort-packed foods for which steam degassing is performed, the bag-feeding machine is not limited in movement acceleration due to spillage or scattering of the packaged object during movement. The speed of the packaging machine can be increased, and a larger amount of packaging can be performed in a short time.
According to the bag-feeding packaging machine according to claim 10, the number of packaging stations for steam deaeration can be reduced, the bag-feeding packaging machine can be made faster, and a larger amount of packaging can be performed in a shorter time.
According to the bag-feeding packaging machine according to claim 11, by simultaneously filling the packaging bag with the object to be packaged and steam degassing, the bag-feeding packaging machine can be made faster, and a larger amount can be obtained in a shorter time. Packaging is possible.
According to the bag-feeding packaging machine according to claim 12, the number of packaging stations for steam degassing can be reduced, the bag-feeding packaging machine can be made faster, and a larger amount of packaging can be performed in a shorter time.
According to the bag-feeding packaging machine according to claim 13, a structure in which the packaging bag intermittently moves with the moving body at each packaging station can be realized with a simpler configuration.
According to the bag feeding and packaging machine according to claim 14, the bag opening opening / closing mechanism can be realized with a simpler configuration.

It is a process explanatory drawing for demonstrating one Example of the packaging method in the bag-filling packaging machine of this invention. It is a process explanatory drawing for demonstrating the wrapping method in the bag feeding wrapping machine shown in FIG. It is explanatory drawing of one Example of the packaging process in the bag-feeding packaging machine of this invention. It is a top view of the Example of the bag feeding packaging machine of this invention. It is a front view of the bag feeding packaging machine shown in FIG. It is a left side view of the bag feeding packaging machine shown in FIG. It is a top view for demonstrating the grip pair of the bag feeding packaging machine shown in FIG. It is a top view for demonstrating the operation of the grip pair of the bag-feeding packaging machine shown in FIG. It is a top view for demonstrating the operation of the grip pair of the bag-feeding packaging machine shown in FIG. It is a top view for demonstrating the operation of the grip pair of the bag-feeding packaging machine shown in FIG. It is explanatory drawing for demonstrating the operation effect of the packaging method of this invention and the bag-filling packaging machine to which the method is applied. It is explanatory drawing for demonstrating the operation effect of the packaging method of this invention and the bag-filling packaging machine to which the method is applied. It is explanatory drawing for demonstrating another Example of the bag-filling packaging machine of this invention. It is explanatory drawing for demonstrating another Example of the bag-filling packaging machine of this invention. It is a process explanatory drawing for demonstrating the wrapping method in the conventional bag feeding wrapping machine. It is a process explanatory drawing for demonstrating the wrapping method in the conventional bag feeding wrapping machine.

In the present invention, as shown in FIGS. 4 to 6, each packaging process is performed by the packaging bag F intermittently moving between the packaging stations 1 to 9 together with the moving body 32, and the packaged object is packaged. In the machine P, among the packaging stations 1 to 9, the packaged object filling step of filling the packaged object in the packaging bag F at the packaged object (fluid) filling station 5 in which the packaged object filling process is performed. After performing the above, before moving to the next packaging station (steam degassing / sealing site preheating station) 6, as shown in FIG. 10, both sides F1 and F2 in the width direction of the packaging bag F are inside (width direction). By approaching or contacting the inner surfaces near the bag mouth toward the inside), spilling and scattering of the packaged object during movement can be suppressed with a simpler operation and more reliably, and the movement acceleration is limited. It is possible to realize a high-speed bag-feeding and packaging machine without receiving it, and realize a packaging method in the bag-packing and packaging machine P that can wrap a larger amount in a short time and a bag-packing and packaging machine P to which the packaging method is applied. did.

The packaging method in the bag-feeding packaging machine of the present invention will be described with reference to an embodiment shown in FIGS. 1 to 12.
In the packaging method in the bag-feeding packaging machine P of this embodiment, each packaging process is performed by the packaging bag F intermittently moving between the packaging stations 1 to 9 together with the moving body (disk-shaped rotating body) 32, and the object to be packaged is It is a packaging method in the bag-feeding packaging machine P to be packaged, and is covered in the packaging bag F at the packaged object (fluid) filling station 5 in which the packaged object filling step is performed among the packaging stations 1 to 9. Filling the package After performing the package filling step, before moving to the next packaging station (steam degassing / sealing site preheating station) 6, both sides F1 and F2 in the width direction of the packaging bag F are inside. This is a packaging method in the bag-feeding and wrapping machine P, which is characterized in that the inner surfaces in the vicinity of the bag mouth are brought close to each other. Hereinafter, each configuration of the bag-feeding packaging machine P and the packaging method in the bag-feeding packaging machine P will be described in detail.

In the bag-feeding packaging machine P of this embodiment, as shown in FIGS. 4 to 6, the grip pair 31 grips the vicinity of both sides of the bag mouth of the packaging bag F and wraps each package together with the moving body (disk-shaped rotating body) 32. A rotary bag wrapping machine in which an object to be packaged is packaged by intermittently moving stations 1 to 9, and the bag wrapping machine P has four grips that move intermittently to each wrapping station 1 to 9 at the same time. It has a pair of 31.

The bag-feeding packaging machine P is for mass-producing retort-packed foods, and while the four packaging bags F gripped by the four grips vs. 31 move intermittently between the nine stations shown in FIG. 4 at the same time. Retort foods are mass-produced.

As shown in FIG. 5 or 6, the bag feeding and packaging machine P is provided with a stand 34 on the machine base 35 that freely supports the intermittent rotating shaft 33 extending in the vertical direction, and the intermittent rotating shaft 33 thereof. On the moving body (disk-shaped rotating body) 32 attached to the upper part, four grip pairs 31 for gripping or releasing the packaging bag F project in the radial direction at equal angular intervals about the intermittent rotation shaft 33. It is provided to do so. These grip pairs 31 grip the vicinity of both sides of the bag mouth of the packaging bag F and intermittently rotate and move together with the moving body (disk-shaped rotating body) 32 in each packaging process.

In addition, this embodiment is a rotary type bag-feeding packaging machine that intermittently drives a moving body (disk-shaped rotating body) 32, but the present invention is not limited to this, and the present invention is a known straight line. It can also be applied to a mobile type (truck type) bag-feeding and packaging machine. In this linearly moving bag-feeding and wrapping machine, for example, a large number of grip pairs are freely provided in an upright posture or a horizontal posture on a moving body that horizontally moves in an annular passage consisting of a straight portion and semicircular portions at both ends thereof. The packaging bag supplied in the bag process is supported by each grip pair, and the packaging bag is intermittently stopped in each process such as the opening process, the filling process, and the bag mouth sealing process to pack the packaged object. It refers to a known structure.

The bag wrapping machine P has four grip pairs 31 arranged at the same horizontal level that intermittently move each packaging station 1 to 9 at the same time, and all grip pairs 31 (4 stations x 9 stations = 36 pairs). The grips 50 (36 pairs) of the above are configured to be located on the circumference of one circle which is a concentric circle of the moving body (disk-shaped rotating body) 32. As a result, production efficiency and mass productivity can be further improved because a large number of grips of 31 are packaged at the same time. Further, since the difference between the inner and outer arcs where the grip 50 is located is almost eliminated, the rotary bag-feeding and packaging machine can be made smaller and the occupied area can be made smaller. Further, various devices arranged in the packaging stations 1 to 9 can be stably operated.

The grip vs. 31 that rotates at the same time as the moving body (disk-shaped rotating body) 32 in the bag-feeding packaging machine P is attached to the moving body (disk-shaped rotating body) 32 by attaching the grip to the moving body (disk-shaped rotating body) 32. In addition to the one directly attached to the moving body (disk-shaped rotating body) 32, the one in which the grip pair 31 is indirectly attached to the moving body (disk-shaped rotating body) 32 is also included.

As shown in FIG. 7, the grip pair 31 has a left holder 51a and a grip 50 provided at the tip thereof, a right holder 51b and a grip 50 provided at the tip thereof, and the left holder 51a and the right holder 51b. Is configured to be rotatable in and out via fulcrums 52a and 52b provided on the base end side, respectively.

The grip 50 has holding bodies 50a and 50b for holding both sides F1 and F2 of the packaging bag F in the width direction, and between the holding bodies 50a and 50b, both sides F1 and F2 of the packaging bag F in the width direction. The packaging bag F is held as shown in FIGS. 8 to 10 while sandwiching the packaging bag F, and both sides F1 and F2 of the packaging bag F are moved in and out in the width direction between the grip 50 of the left holder 51a and the right holder 51b. It is configured so that the (grip width) can be changed.

The base end side of the left holder 51a and the right holder 51b are connected by a link 53, and both are configured to be interlocked when adjusting the grip width. Specifically, when the grip opening / closing lever 54 moves up and down in FIGS. 8 to 10, the left holder 51a and the right holder 51b are interlocked by the link 53 and move in and out to adjust the grip width. .. An opening / closing plate 57 capable of reciprocating in the radial direction of the grip width adjusting disk 55 is arranged in the recess 56 of the grip width adjusting disk 55.

Then, when the opening / closing plate 57 is moved in the direction indicated by the arrow k in FIG. 8 (direction toward the center of the grip width adjusting disk 55), the grip opening / closing roller 58 attached to the tip of the grip opening / closing lever 54 moves to the grip width adjusting disk 55 side. The left holder 51a and the right holder 51b are moved inward via the link 53, so that the distance between the grips 50 (grip width) of the left holder 51a and the right holder 51b is reduced. There is.

On the other hand, when the opening / closing plate 57 is moved in the direction of the arrow (M) in FIG. 9, the grip opening / closing roller 58 attached to the tip of the grip opening / closing lever 54 moves toward the outside of the grip width adjusting disk 55, thereby moving the opening / closing plate 57 toward the outside of the grip width adjusting disk 55. The left holder 51a and the right holder 51b are moved outward via the link 53, so that the distance between the grips 50 (grip width) of the left holder 51a and the right holder 51b is increased.

When the opening / closing plate 57 is further moved in the direction indicated by the arrow k in FIG. 10 (direction toward the center of the grip width adjusting disk 55), the grip opening / closing roller 58 attached to the tip of the grip opening / closing lever 54 moves toward the grip width adjusting disk 55. This further moves the left holder 51a and the right holder 51b inward via the link 53, so that the distance between the grips 50 (grip width) between the left holder 51a and the right holder 51b becomes smaller. Along with this, both sides F1 and F2 of the packaging bag F in the width direction are moved inward so that the inner surfaces near the bag mouth can be brought close to each other. In this embodiment, both sides F1 and F2 of the packaging bag F in the width direction are moved inward to bring the inner surfaces near the bag mouth close to each other, but the present invention is not limited to this, and the packaging bag F is not limited to this. The category of the present invention also includes a case in which both sides F1 and F2 in the width direction are brought inward and the inner surfaces near the bag mouth come into contact with each other (including surface contact).

The bag opening / closing mechanism 59 is a mechanism for opening / closing the bag opening of the packaging bag F, and is a grip width adjusting mechanism 60 (link 53, grip opening / closing lever) that can adjust the width between the grips 50 of the grip to 31 described above. 54, grip width adjusting disk 55, recess 56, opening / closing plate 57, grip opening / closing roller 58), and a pair of suction cups 61 that suck the packaging bag F gripped by the grip pair 31 from the front and back, respectively, as shown in FIG. Have. Further, the bag mouth opening / closing mechanism may include an air injection device that injects air from the opened bag mouth to ensure the certainty of the opening.

Specifically, in the bag opening / closing mechanism 59 of this embodiment, when opening the bag opening of the packaging bag F, as shown in FIG. 8, the opening / closing plate 57 is moved in the direction of the arrow k in FIG. 8 (grip width adjusting disk). The grip opening / closing roller 58 attached to the tip of the grip opening / closing lever 54 is moved to the grip width adjusting disk 55 side. As a result, the left holder 51a and the right holder 51b move inward via the link 53, respectively, and the space between the grips 50 (grip width) between the left holder 51a and the right holder 51b becomes smaller. Along with this operation, the front and back surfaces of the packaging bag F are sucked by the pair of suction cups 61 and pulled toward the outside of the packaging bag F so that the bag mouth of the packaging bag F is opened. It is configured.

On the other hand, in the bag opening / closing mechanism 59 of this embodiment, when closing the bag opening of the packaging bag F, the opening / closing plate 57 is moved in the direction of the arrow (M) in FIG. 9 to open / close the grip as shown in FIG. The grip opening / closing roller 58 attached to the tip of the lever 54 is moved toward the outside of the grip width adjusting disk 55. As a result, the left holder 51a and the right holder 51b move outward via the link 53, respectively, and the space between the grips 50 (grip width) of the left holder 51a and the right holder 51b becomes large. The bag mouth of F is configured to close.

Further, in the bag mouth opening / closing mechanism 59 of this embodiment, when both sides F1 and F2 of the packaging bag F in the width direction are brought inward to bring the inner surfaces near the bag mouth closer to each other, as shown in FIG. The opening / closing plate 57 is further moved in the direction of arrow k in FIG. 10 (direction toward the center of the grip width adjusting disk 55), and the grip opening / closing roller 58 attached to the tip of the grip opening / closing lever 54 is moved to the grip width adjusting disk 55 side. Let me. As a result, the left holder 51a and the right holder 51b move inward via the link 53, respectively, and the distance between the grips 50 (grip width) between the left holder 51a and the right holder 51b is further reduced. Along with this operation, both sides F1 and F2 of the packaging bag F in the width direction are moved inward so that the inner surfaces near the bag mouth can be brought close to each other.

As shown in FIG. 4, the bag-feeding and wrapping machine P of this embodiment includes a bag-feeding station 1, a printing / preliminary heating / bag posture confirmation / stamp inspection station 2, a bag bottom inflating / bag opening station 3, and a bag opening station 3. In-line check of packaged material (solid material) filling station 4, packaged material (fluid material) filling station 5, steam degassing / sealing site preheating station 6, decorative sealing station 7, ultrasonic sealing station 8 -Has a product discharge station 9. Hereinafter, each packaging process (see FIG. 3) performed at each packaging station 1 to 9 will be sequentially described.

At the bag feeding station 1, the bag feeding step (first step) is performed by sequentially gripping the packaging bags F sequentially conveyed by the bag feeding conveyor to the grip pairs 31 which are intermittently moved by the bag feeding device. Specifically, in the bag feeding step (first step), the grip bar of the bag feeding device grips the packaging bag F that rises while maintaining the vertical posture by the suction cup, corrects the bag height, and then grips vs. 31. It is done by handing it over to.

In the printing / preliminary heating / bag posture confirmation / stamp inspection station 2, the expiration date and the like are printed by the stamping device on the back side of the packaging bag F supported in a vertical posture with the grip pair 31 (station 1 and station 2). Is done between). Further, in order to open the bottom of the packaging bag F, the vicinity of the bottom is heated from both sides of the packaging bag F with a heating device (preliminary heating), and the posture of the packaging bag F is confirmed by a sensor (bag posture confirmation). Further, the printed portion is photographed by a camera to inspect the quality of printing (seal inspection: performed between station 2 and station 3).

In the bag bottom inflating / bag opening station 3, the front and back surfaces of the packaging bag F supported in a vertical position with respect to the grip 31 are attracted by suction cups 61 to slightly open the bag mouth, and then inserted to inject air. Inflate the bottom of the bag. Specifically, the bag opening step is performed by the bag mouth opening / closing mechanism 59 described above.

At the packaged object (solid substance) filling station 4, a filling funnel is inserted from the bag mouth and the packaged object (solid substance) is filled in the packaging bag F.

At the packaged object (fluid) filling station 5, the filling funnel 36 is inserted from the bag mouth to fill the packaged bag F with the packaged object (fluid).

Then, in the bag-feeding packaging machine P that implements the packaging method in the bag-feeding packaging machine of the present invention and the packaging method, the inside of the packaging bag F at the packaged object (fluid) filling station 5 in which the packaged object filling step is performed. After performing the package filling step of filling the packaged object (fluid substance), the package is packaged before being moved to the next packaging station (steam degassing / sealing site preheating station) 6 by the bag mouth opening / closing mechanism 59. Both sides F1 and F2 in the width direction of the bag F are moved inward so that the inner surfaces near the bag mouth come close to each other. As a result, spilling and scattering of the object to be packaged during movement can be suppressed more reliably with a simpler operation, and the speed of the bag-feeding packaging machine can be increased without limiting the moving acceleration. A larger amount of packaging is possible in time.

Specifically, in the bag-feeding and packaging machine P of this embodiment, as shown in FIG. 1 (A), the filling funnel 36 is inserted into the bag mouth of the packaging bag F in which both ends are gripped by the grip pair 31. After filling the object to be packaged, the bag mouth of the packaging bag F is opened as shown in FIG. 1 (B), but as shown in FIG. 1 (C), the next packaging station (steam removal). At the time of stopping before moving to the air / seal part preheating station) 6, the bag opening opening / closing mechanism 59 is activated so that both sides F1 and F2 in the width direction of the packaging bag F are brought inward and the inner surface near the bag opening. It is configured to bring them closer together.

In the steam degassing / sealing portion preheating station 6, after steam degassing, the sealing portion is preheated in order to evaporate and remove water droplets adhering to the inner surface of the sealing portion during steam degassing. Specifically, steam is discharged into the packaging bag F from the steam discharge nozzle of the steam deaerator. As a result, the air in the packaging bag F is expelled to prolong the storage period of the retort food, and steam is liquefied to reduce the volume of the internal space. After that, a pair of preheating bars from the front and back surfaces of the packaging bag F press the sealing portion of the packaging bag F to evaporate and remove water droplets adhering to the inner surface of the sealing portion B.

Then, in the packaging method in the bag-feeding packaging machine of this embodiment and the bag-feeding packaging machine P that implements the packaging method, after the steam degassing described above is performed at the steam degassing / sealing site preheating station 6, the bag is used. Before moving to the next packaging station (decorative seal station) 7 by the mouth opening / closing mechanism 59, both sides F1 and F2 in the width direction of the packaging bag F are brought inward to bring the inner surfaces near the bag mouth closer to each other. It is configured as follows. As a result, even if the packaging station on the downstream side of the package filling station has an opening-required packaging process that requires the opening of the bag opening of the packaging bag, the movement acceleration is limited by the spilling or scattering of the packaged object during movement. It is possible to increase the speed of the bag-feeding and packaging machine without having to do so, and it is possible to wrap a larger amount in a short time.

Specifically, in the bag feeding and packaging machine P of this embodiment, as shown in FIG. 2 (A), the bag mouth of the packaging bag F is opened by the bag opening opening / closing mechanism 59, and then shown in FIG. 2 (B). As shown in FIG. 2C, the bag mouth opening / closing mechanism 59 is actuated to act on the packaging bag F when the bag is stopped before moving to the next packaging station (decorative seal station) 7. Both sides F1 and F2 in the width direction of the bag are moved inward so that the inner surfaces near the bag mouth come close to each other.

The packaging method in the bag-filling wrapping machine of the present invention and the wrapping method in the bag-filling wrapping machine of WO / 2018/185873 previously proposed by the applicant of the present application of the wrapping machine to which the wrapping method is applied. The advantages in comparison with the packaging machine to which is applied are as follows.

The first merit is that the grip width is made smaller than when the grip width is opened (state in FIG. 8) as shown in FIG. 10 as compared with the case where the grip width is increased and the bag mouth of the packaging bag F is closed as shown in FIG. It is simpler and smoother to move both sides F1 and F2 in the width direction of the packaging bag F toward the inside to bring the inner surfaces near the bag mouth closer or in contact with each other in the same direction as when the bag is opened. It is a point that can be done.

The second merit is that, as shown in FIG. 12, when the bag mouth of the packaging bag F is closed by increasing the grip width, the upper surface U2 of the object to be packaged in the packaging bag F rises, so that the closing operation is accompanied by the closing operation. There is a possibility that the object to be packaged may leak from the bag opening, but the grip width is made smaller than when it is opened (state in FIG. 8), and both sides F1 and F2 in the width direction of the packaging bag F are moved inward to the bag opening. When the inner surfaces in the vicinity are brought close to each other or brought into contact with each other, as shown in FIG. 11, the upper surface U1 of the packaged object in the packaging bag F is lowered, so that the packaged object may leak from the bag mouth due to the operation. Is rather small. In this respect, even when the packaging bag F moves to the next station, the upper surface U1 of the packaged object in the packaging bag F is lowered, so that the possibility of the packaged object leaking from the bag mouth is reduced.

The third merit is that when the packaging station on the downstream side of the package filling station has an opening-required packaging process that requires the opening of the bag opening of the packaging bag, when the packaging bag F is opened again, FIG. It can be opened from the state to the state shown in FIG. 8 only by slightly increasing the grip width, and while sucking the front and back surfaces of the packaging bag F with a pair of suckers 61, each of them is pulled toward the outside of the packaging bag F. The point is that there is no need.

Further, in the bag-feeding packaging machine P of this embodiment, the steam degassing step corresponds to the opening-required packaging process that requires the opening of the bag mouth of the packaging bag F at the packaging station on the downstream side of the package filling station 5. The packaging process requiring opening is not limited to this process, and the packaging process requiring opening of the bag mouth of the packaging bag F is widely included. For example, a bag when the object to be packaged is powder. It also includes a step of blowing off the powder adhering to the inner surface of the mouth. Further, the opening-required packaging step is not limited to the next step of the package filling step, and the packaging step performed after the package filling step is broadly included.

In this way, when the opening-required packaging process that requires the opening of the bag mouth of the packaging bag is performed at the packaging station on the downstream side of the package filling station, the packaging station that performs the opening-requiring packaging process (re-opening step) is used. After opening the bag mouth of the packaging bag with the bag mouth opening / closing mechanism 59 (however, suction by a pair of suckers 61 is not required), the opening / closing packaging process is performed, and the bag mouth opening / closing mechanism is performed before moving to the next packaging station. Therefore, it is preferable that both sides F1 and F2 of the packaging bag F in the width direction are brought closer to the inside so that the inner surfaces near the bag mouth come close to each other.

Further, in the bag-feeding packaging machine P of this embodiment, at the packaged object (fluid) filling station 5 where the packaged object filling step is performed, after the packaged object (fluid) is filled, the width direction of the packaging bag F Both sides F1 and F2 are brought inward to bring the inner surfaces near the bag mouth close to each other, and at the packaged object (solid matter) filling station 4, the bag mouth of the packaging bag F is opened after the packaged object (solid matter) is filled. It is moved to the next packaging station (packed matter (fluid material) filling station) 5 with the opening open, but if the packaged object (solid matter) scatters depending on the degree of high-speed movement, the packaged object In the (solid matter) filling station 4, after filling the packaged object (solid matter), both sides F1 and F2 in the width direction of the packaging bag F are brought inward to bring the inner surfaces near the bag mouth closer to each other. It is included in the category of invention. Further, since the bag-feeding packaging machine P of this embodiment packages and mass-produces retort foods, the objects to be packaged are liquids and solids, but are not limited thereto, such as powders or granules. It is also included in the scope of the present invention that it is applied to a bag-feeding and wrapping machine for packaging.

In the decorative seal station 7, a decorative seal (cosmetic seal) is applied by sandwiching the upper portion of the sealing portion of the packaging bag F with a pair of seal bars from the front and back surfaces of the packaging bag F. By applying this decorative seal prior to the ultrasonic seal, water droplets that could not be completely removed by preheating the seal part can escape up and down (inside and outside the packaging bag F), and large air bubbles remain on the inner surface of the seal. It is possible to prevent wrinkles from being generated at the seal portion.

In the ultrasonic sealing station 8, ultrasonic sealing (8-1 steps) is performed by pressing the horn of the ultrasonic sealing device against the lower portion of the sealing portion of the packaging bag F, and the packaging bag F is completely sealed. .. After that, the cooling bars paired from the front and back surfaces of the packaging bag F press the seal portion B of the packaging bag F, so that the minute air bubbles generated in the decorative seal are crushed by the cooling bar and the eyes are placed. (Cooling seal step: 8-2).

In the in-line check / product discharge station 9, the weight of the packaging bag F in which the object to be packaged is packaged is weighed, and the packaging bag F in which the appropriate amount of the object to be packaged is packaged is transferred to the outside conveyor via the distribution chute. To discharge. Then, in the bag-feeding packaging machine P, these series of packaging steps are sequentially performed on the packaging bag F supported by the grip pair 31 which is intermittently moved by the intermittent rotation of the moving body (disk-shaped rotating body) 32. It is configured so that the packaged product (retort food) of the packaged object is mass-produced.

Further, a packaging method in the bag-feeding and packaging machine according to another embodiment of the present invention shown in FIG. 13 and a bag-feeding and packaging machine that implements the packaging method will be described.
The packaged material filling station in this embodiment is configured to perform a packaged material filling step and a steam degassing step of inflowing steam from the bag mouth of the packaging bag to degas the inside of the packaging bag. As a result, the number of packaging stations for steam degassing can be reduced, resulting in a space-saving and compact packaging machine.

In the packaged material filling station of this embodiment, the packaged material filling step and the steam degassing step are configured to be performed at the same time. Specifically, as shown in FIG. 13 (A), the grip pair 31 The filling funnel 36 is inserted into the bag mouth of the packaging bag F gripping the vicinity of both ends to fill the packaged object, and at the same time, steam degassing is performed as shown in FIG. 13 (B). When the filling of the packaged object and the steam deaeration are completed, the bag mouth of the packaging bag F is opened as shown in FIG. 13 (C), but as shown in FIG. 13 (D), the next packaging station. At the time of stopping before moving to, the bag mouth opening / closing mechanism is activated so that both sides F1 and F2 in the width direction of the packaging bag F are brought inward to bring the inner surfaces near the bag mouth closer to each other, and then the next Move to the packaging station (Fig. 13 (E)).

Further, in the packaging method in the bag-feeding packaging machine of another embodiment of the present invention shown in FIG. 14, and the bag-feeding packaging machine that implements the packaging method, the packaged material filling step and steam removal are performed at the packaged material filling station. Performing the air step is the same as that of the embodiment shown in FIG. 13, but is shown in FIG. 13 in that the steam degassing step is performed after the package filling step is performed at the packaged filling station. Different from the embodiment.

Specifically, as shown in FIG. 14 (A), the filling funnel 36 is inserted into the bag mouth of the packaging bag F whose both ends are gripped by the grip pair 31 to fill the packaged object, and then FIG. Steam degassing is performed as shown in 14 (B). Then, when the filling of the packaged object and the steam degassing are completed, the bag mouth of the packaging bag F is opened as shown in FIG. 14 (C), but as shown in FIG. 14 (D), the next order is When stopped before moving to the packaging station, the bag opening opening / closing mechanism is activated so that both sides F1 and F2 in the width direction of the packaging bag F are brought inward to bring the inner surfaces near the bag opening closer to each other, and then. , Move to the next packaging station (Fig. 11 (E)). Such a thing is also included in the category of the packaging method in the bag-feeding packaging machine of the present invention and the bag-feeding packaging machine that implements the packaging method.

P Bag packing machine 1 Bag feeding station 2 Printing / preliminary heating / bag posture confirmation / stamp inspection station 3 Bag bottom inflating / bag opening station 4 Packaged material (solid material) filling station 5 Packaged material (fluid material) filling Station 6 Steam deaeration / seal part Preheating station 7 Decorative seal station 8 Ultrasonic seal / empty bag discharge station 9 In-line check / product discharge station 31 Grip vs. 32 Moving body (disk-shaped rotating body)
33 Intermittent rotation shaft 34 Stand 35 Machine stand 36 Filling device 50 Grip 50a Holding grip 50b Fixed grip 51a Left holder 51b Right holder 52a Supporting point 52b Supporting point 53 Link 54 Grip opening / closing lever 55 Grip width adjustment disk 56 Recession 57 Opening / closing plate 58 Grip opening / closing roller 59 Bag mouth opening / closing mechanism 60 Grip width adjustment mechanism 61 Sucker F Packaging bag F1, F2 Both sides of the packaging bag in the width direction

Claims (14)

It is a packaging method in a bag-feeding packaging machine in which each packaging process is performed by intermittently moving each packaging station together with a moving body to wrap the packaged object, and the packaged object is filled in each of the packaging stations. In the package filling station where the process is performed, after performing the package filling step of filling the packaging bag with the packaged object, before moving to the next packaging station, the width direction of the packaging bag A wrapping method in a bag-feeding wrapping machine, characterized in that both sides of the wrapping are brought inward so that the inner surfaces near the wrapping mouth come into close contact with each other. The packaging method in the bag-feeding packaging machine performs the opening-requiring packaging step when the packaging station on the downstream side of the package filling station has an opening-requiring packaging step requiring the opening of the bag mouth of the packaging bag. After opening the opening of the packaging bag at the packaging station, the opening-required packaging step is performed, and both sides of the packaging bag in the width direction are directed inward before moving to the next packaging station. The packaging method in the bag-feeding packaging machine according to claim 1, wherein the inner surfaces near the bag mouth are brought close to each other or brought into contact with each other. The packaging method in the bag-feeding packaging machine according to claim 2, wherein the opening-required packaging step is a steam degassing step in which steam flows in from the bag mouth of the packaging bag to degas the inside of the packaging bag. The supply according to claim 1, wherein at the package filling station, a steam degassing step of filling the packaged object and degassing the inside of the packaging bag by inflowing steam from the bag mouth of the packaging bag is performed. Packaging method in bag packaging machine. The packaging method in a bag-feeding packaging machine according to claim 4, wherein the package filling station simultaneously performs the package filling step and the steam degassing step. The packaging method in a bag-feeding packaging machine according to claim 4, wherein the package filling station performs the steam degassing step after performing the package filling step. It is a bag-feeding packaging machine in which each packaging process is performed by intermittently moving the packaging bag together with the moving body to package the object to be packaged, and the bag-feeding packaging machine uses the bag mouth of the packaging bag. Among the packaging stations, which has a bag mouth opening / closing mechanism for opening and closing, at the package filling station where the package filling step is performed, the package filling is filled in the packaging bag. After performing the process, before moving to the next packaging station, the bag mouth opening / closing mechanism brings both sides of the packaging bag in the width direction toward the inside to bring the inner surfaces in the vicinity of the bag mouth close to each other or come into contact with each other. A bag-feeding and packaging machine characterized in that it is configured in such a manner. When the bag-feeding and packaging machine performs an opening-requiring packaging step that requires the opening of the bag mouth of the packaging bag at the packaging station on the downstream side of the package filling station, the packaging station that performs the opening-requiring packaging step. After opening the bag opening of the packaging bag by the bag opening opening / closing mechanism, the opening required opening packaging step is performed, and before moving to the next packaging station, the packaging bag is opened by the bag opening opening / closing mechanism. The bag-feeding and packaging machine according to claim 7, wherein both sides in the width direction of the bag are brought closer to each other inward so that the inner surfaces near the bag mouth approach or come into contact with each other. The bag-feeding packaging machine according to claim 8, wherein the opening-required packaging step is a steam degassing step in which steam is introduced from the bag mouth of the packaging bag to degas the inside of the packaging bag. The claim is configured such that the package filling station performs the package filling step and the steam degassing step of inflowing steam from the bag mouth of the packaging bag to degas the inside of the packaging bag. Item 7. The bag-feeding and packaging machine according to Item 7. The bag-feeding and packaging machine according to claim 10, wherein the package filling station is configured to simultaneously perform the package filling step and the steam degassing step. The bag-feeding packaging machine according to claim 10, wherein the package filling station is configured to perform the steam degassing step after performing the package filling step. The bag-feeding packaging machine according to any one of claims 7 to 12, wherein the bag-feeding packaging machine has a grip pair that grips both sides in the width direction of the packaging bag and intermittently moves each packaging station together with the moving body. Bag wrapping machine. The bag mouth opening / closing mechanism has a grip width adjusting mechanism that allows the width between the grip pairs to be adjusted, and a suction cup that sucks the packaging bag gripped by the grip pairs from the front and back, respectively. The bag-feeding packaging machine according to any one of 7 to 13.

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