JP6792515B2 - Filling and packaging machine and filling and packaging method - Google Patents

Description

The present invention relates to a filling and packaging machine and a filling and packaging method.

<Explanation of background technology>
Conventionally, various techniques have been proposed in which powder or liquid is filled in an inner bag placed in a rigid outer container and packaged (see, for example, Patent Documents 1 and 2).

<Explanation of Patent Document 1>
Patent Document 1 discloses an apparatus for filling a flexible container with an object to be filled from a mouth portion provided on the upper surface thereof and packaging the container. This filling and packaging device includes a tray transporting means for inserting the container into the box tray and transporting the box tray to the filling position while holding the mouth of the container in a fixed position on the top of the tray, and inside the box tray at the filling position. A filling means for filling the container of the container with the filling material from its mouth, a tray transporting means for transporting the box tray into which the container filled with the filling material is inserted to the box loading section, and a cap on the way to the box loading section. It is provided with a capper that attaches a cap to the mouth of the container at the mounting position, and a separate loading means that separates the container from the box tray at the box loading section and loads the container into the packaging box.

<Explanation of Patent Document 2>
Patent Document 2 discloses a box body to which a bag is mounted, which can prevent the bag from coming off from the box body, and a bag mounting device for mounting the bag on the box body. The bag mounting device is formed from the side plate and the bottom plate so as to have an open top surface, and is inserted into the main body so as to be aligned with the side plate and the bottom plate of the main body and folded back at the upper end of the side plate. A bag holding means for holding the opening is provided, and the bag holding means penetrates the side plate and has two holes arranged side by side at predetermined intervals, and the distance is set along a line connecting the centers of the holes. It has a bag holding portion that is formed by dividing and holds the bag by the divided facing surfaces, and when the opening of the bag is pushed into each hole, the opening of the bag is held by the bag holding portion. A bag is attached, which is characterized in that the bag is attached to the main body.

<Required technology>
By the way, in recent years, from the viewpoint of suppressing contamination in the content filling and packaging process, the inner bag for filling the contents is not provided with a special mouth, and the amount and time for the inner bag to open in the device are minimized. It is requested that. In addition, there are technologies that simplify the device by not holding the outer container and inner bag separately, and that have a high degree of freedom when filling and minimize wrinkles and tears even in large inner bags. It is requested. However, Patent Document 1 fixes the filling port of the inner bag to the outer container, and Patent Document 2 only folds the upper end of the inner bag to the outside of the outer container, which is not sufficient from the viewpoint of suppressing contamination. I can't say.

Japanese Patent No. 3470076 Japanese Patent No. 4893508

<Issues of background technology>
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a simple and highly flexible filling / packaging machine for powder or liquid or a filling / packaging method while suppressing contamination. To do.

<Contents of claim 1>
In order to achieve such an object, the present invention is grasped by the following configuration.
(1) A first aspect of the present invention is a filling and packaging machine that fills a flexible inner bag arranged inside a rigid outer container with powder or liquid and seals the inner bag. The inner bag arranged inside the outer container is provided with a filling portion for filling the powder and granules or the liquid, and a holding jig capable of holding the opening of the inner bag in the longitudinal direction. The filling portion holds the outer container and regulates the position of the outer container transport chuck, a measuring instrument for measuring the outer container, and a jig operating mechanism for detachably gripping the holding jig. When the inner bag is filled with the powder or the liquid, the lower end of the inner bag holds the holding jig while the jig operating mechanism holds the inner bag. Raise the outer container until it rises from the bottom surface, and the jig operating mechanism opens the holding jig to the top surface of the outer container as the filling of the powder or the liquid progresses into the inner bag. The feature is that it is lowered until it is mounted on the part.

<Contents of claim 2> (2) In the configuration of (1) above, the measuring instrument is opened from the outer container transport chuck and the holding jig holds the opening of the inner bag. Measures the tare of the outer container, and the filling nozzle is small until the tip of the filling nozzle provided in the filling portion is inserted into the inside of the outer container near the top opening of the outer container. Filling is started, the tip of the filling nozzle is inserted into the inside of the outer container to start large filling, and when the large filling is completed, the tare measurement result is subtracted by the measuring instrument until the filling amount reaches the target value. Small filling may be performed, and the holding jig may close the opening of the inner bag after the filling of the target value is completed.

<Contents of claim 3>
(3) A second aspect of the present invention is a filling and packaging method in which a flexible inner bag arranged inside a rigid outer container is filled with powder or liquid and the inner bag is sealed. A filling step of filling the inner bag arranged inside the outer container with powder or liquid is provided, and in the filling step, the outer container is held and its position is adjusted, and the outer container is weighed. The inner bag is expanded by filling with the powder or the liquid, and the lower end of the inner bag is lifted from the bottom surface of the outer container while the inner bag is expanded by the filling with the powder or the liquid. The inner bag is filled with the powder or granular material or the liquid, and the upper end thereof is lowered.

<Contents of claim 4> (4) In the configuration of (3) above, before filling is started, the outer container is released from the outer container transport chuck, and the holding jig mounted on the outer container is used. The tare measurement of the outer container is performed while holding the opening of the inner bag, and the tip of the filling nozzle for filling the powder or the liquid is inside the outer container near the top opening of the outer container. Small filling is started by the time it is inserted, the tip of the filling nozzle is inserted into the inside of the outer container to start large filling, and when the large filling to the inner bag is completed, the tare measurement result is subtracted to the target. Small filling may be performed until the filling amount of the value is reached, and the holding jig may close the opening of the inner bag after reaching the filling of the target value.

According to the present invention, it is possible to provide a simple and highly flexible filling / packaging machine for powder or liquid or a filling / packaging method while suppressing contamination.

It is a top view of the filling and packaging machine which concerns on embodiment of this invention. It is a front view of the filling and packaging machine which concerns on embodiment of this invention. It is a front view of the holding jig of the filling and packaging machine which concerns on embodiment of this invention. It is a back view of the holding jig of the filling packaging machine which concerns on embodiment of this invention. It is a side view of the inner bag supply part of the filling packaging machine which concerns on embodiment of this invention. It is a side view of the filling part of the filling packaging machine which concerns on embodiment of this invention. It is a side view of the closed part of the filling packaging machine which concerns on embodiment of this invention. It is a relational figure which shows typically the sealing part of the filling packaging machine which concerns on embodiment of this invention, and the inner bag holding position of the holding jig.

<Explanation of Embodiment-1>
Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the accompanying drawings. The same elements are numbered the same throughout the description of the embodiment.

<Explanation of Embodiment-2>
(Structure of Embodiment)
First, the configuration of the filling and packaging machine 1 according to the present embodiment will be described with reference to FIGS. 1 to 7. FIG. 1 is a plan view of the filling and packaging machine 1 according to the present embodiment, FIG. 2 is a front view of the filling and packaging machine 1, FIG. 3 is a front view of a holding jig 50 used for the filling and packaging machine 1, and FIG. The rear view of the jig 50, FIG. 5 is a side view of the inner bag supply portion 20 of the filling and packaging machine 1, FIG. 6 is a side view of the filling portion 30 of the filling and packaging machine 1, and FIG. 7 is a sealed portion 40 of the filling and packaging machine 1. FIG. 8 is a relationship diagram schematically showing the holding position of the inner bag B of the sealing portion 40 and the holding jig 50 of the filling and packaging machine 1.

<Overall configuration of filling and packaging machine 1-1>
As shown in FIGS. 1 and 2, the filling and packaging machine 1 fills a package composed of a rigid outer container P and a flexible inner bag B with powder or liquid, and further inner. It is a device that seals the bag B. As the rigid outer container P, various generally rigid outer containers P such as those made of metal, synthetic resin, and corrugated cardboard can be used, but synthetic resin is particularly suitable from the viewpoint of being suitable for reuse in boxing. An outer container P made of plastic is desirable. As the flexible inner bag B, various generally flexible inner bags B made of synthetic resin film, paper, cloth, etc. can be used, but from the viewpoint of maintaining the hygiene of the filling material, particularly the food. Therefore, the inner bag B made of a synthetic resin film is particularly desirable. The filling / packaging machine 1 includes an outer container supply unit 10, an inner bag supply unit 20, a filling unit 30, and a sealing unit 40 from the upstream side to the downstream side.

<Overall configuration of filling and packaging machine 1-2>
The outer container supply unit 10 supplies the outer container P to the transport path on the downstream side. The inner bag supply unit 20 is located on the downstream side of the outer container supply unit 10, and supplies the inner bag B to the inside of the outer container P that has been conveyed by the transport path. The filling unit 30 is located on the downstream side of the inner bag supply unit 20, and fills the inner bag B arranged inside the outer container P conveyed by the transport path with powder or liquid. The sealing portion 40 is located on the downstream side of the filling portion 30, is arranged inside the outer container P transported by the transport path, and evacuates the air above the inner bag B filled with powder or liquid. The inner bag B is heat-sealed.

<Overall configuration of filling and packaging machine 1-3>
In addition to these, the filling / packaging machine 1 is mounted on the outer container P from the inner bag supply unit 20 through the filling unit 30 to the sealing portion 40, and if necessary, the opening of the inner bag B is opened in the longitudinal direction thereof. A holding jig 50 capable of holding the bag is provided.

<Overall configuration of filling and packaging machine 1-4>
Then, the inner bag supply unit 20 is allowed to hold the inner bag cutting mechanism 23 that cuts out the stocked inner bag B one by one and the opening of the cut out inner bag B by the holding jig 50 in the longitudinal direction thereof. A first jig transfer mechanism 21 for mounting the holding jig 50 in the top opening P1 of the outer container P is provided. The sealing portion 40 includes a degassing mechanism 42 for removing air above the powder or granular material or liquid filled in the inner bag B, a sealing chuck 43 for temporarily holding the opening of the inner bag B, and an outer container. A second jig transfer mechanism 41 that detaches the holding jig 50 mounted on the top opening P1 of P, collects the holding jig 50 on the return path 70, and returns it to the inner bag supply unit 20. A sealing mechanism 44 for heat-sealing the opening of the bag B is provided.

<Filling standby unit 203 and sealed standby unit 304>
In addition to the above, in FIGS. 1 and 2, a filling standby unit 203 is arranged between the inner bag supply unit 20 and the filling unit 30, and a sealing standby unit 304 is arranged between the filling unit 30 and the sealing unit 40. An example is shown. This is done in the present embodiment after the inner bag B is arranged in one outer container P, the inner bag B is arranged in the second outer container P, and the two outer containers P are prepared. This is because it is assumed that the two are filled at the same time, and after filling, they are sealed one by one. There is no reason to limit the number of arrangements of these parts to those shown in the figure, and they may be set as appropriate. In the following, each part and the like will be described in detail except for the filling standby part 203 and the closed waiting part 304.

<Structure of outer container supply unit 10-1>
First, the outer container supply unit 10 will be described. As shown in FIG. 1, the outer container supply unit 10 has an outer container stocker unit 11 in which the outer container P is stacked on the conveyor 111 (outer container supply path) and an inner bag supply unit in which the outer container P is disassembled. It is provided with a payout unit 12 for paying out to 20. In the outer container stocker section 11, the step-disassembling section 112 adjacent to the pay-out section 12 is provided with the stacked outer containers P being step-disassembled one by one and supplied to the pay-out section 12. The step disassembling is performed by the cutting portion 113 provided in the step disassembling portion 112. Specifically, the claw 113a is inserted between the lowermost stage and the second stage, and the claw 113a is raised by the cylinder 113b to cut out only the outer container P at the lowermost stage. At this time, the lowermost stage fixing means 113c which is not raised by the cylinder 11b may be separately installed to hold the lowermost stage during cutting, and with such a configuration, the lowermost stage can be reliably cut out. become. The cut-out lowermost outer container P is supplied to the payout unit 12 by the conveyor 111.

<Structure of outer container supply unit 10-2>
Here, FIG. 2 shows an example in which three outer containers P stacked in 10 stages are arranged in the front and rear in the outer container stocker portion 11, and when the first one is consumed, the second one is placed in the step disassembly portion 112. It moves and the steps are disassembled in the same way as the first one. Of course, the number of outer containers P to be stacked and the number of stacks to be arranged in front and behind are not limited to the examples shown here.

<Structure of outer container supply unit 10-3>
Further, in FIGS. 1 and 2, the outer container stocker portion 11 shows an example in which the conveyors 111 are provided in two rows so that the stacked outer containers P can be arranged in two rows in parallel. The arrangement of the parallel columns is not limited to two columns, and may be three or more columns. By forming the outer container stocker portions 11 in a plurality of rows in this way, it is possible to stock two or more types of outer containers P at the same time, and it is possible to smoothly perform the work at the time of product type switching.

<Outer container P>
Here, the outer container P will be described. As the outer container P, a container having a substantially quadrangular or substantially circular top surface opening P1 can be used, but in the present embodiment, a substantially quadrangular one is shown. As described above, when the outer container P is stacked in two rows in the outer container supply unit 10, for example, two types of outer containers P having different capacities of 10 L and 16 L can be arranged in each row. Then, as will be described later, the size of the outer container P can be changed according to the filling amount of the inner bag B without stopping the operation of the filling / packaging machine 1. Although the heights of the 10L and 16L outer containers P are different, the filling / packaging machine 1 according to the present embodiment is configured to correspond to the height of the outer container P.

<Payout from the outer container supply unit 10 to the inner bag supply unit 20>
The outer container P supplied to the discharge unit 12 of the outer container supply unit 10 is discharged to the inner bag supply unit 20 on the downstream side, but when the outer container P has a substantially quadrangular top opening P1, it is as follows. It can be configured as such. That is, as shown in FIG. 1, when the outer container P is placed in the payout unit 12 of the outer container supply unit 10 in a state of facing the transport direction to the downstream side, the outer container 20 in the inner bag supply unit 20. The outer container P is rotated 45 degrees between the outer container supply section 10 and the inner bag supply section 20 so that one of the diagonal directions of the top opening P1 of P is substantially parallel to the transport direction. It may have a rotation mechanism for delivery. By doing so, a large number of outer containers P can be stocked even if the area of the outer container stocker portion 11 is small, and automatic operation can be performed without supplying the outer container P from the outside for a long time.

<Payout from the outer container supply unit 10 to the inner bag supply unit 20-2>
Of course, when placed in the payout portion 12 of the outer container supply unit 10, one of the diagonal directions of the top surface opening P1 of the outer container P is in a direction substantially parallel to the transport direction in advance. P may be stacked on the outer container stocker section 11 of the outer container supply section 10. In this case, no rotating mechanism is needed. In short, when the top opening P1 of the outer container P is substantially quadrangular, if one of the diagonal directions of the top opening P1 of the outer container P is substantially parallel to the transport direction, it will be described later. , The longitudinal direction of the opening of the inner bag B can be substantially parallel to one of the diagonal directions of the top opening P1 of the outer container P, and a series of operations is convenient.

<Structure of inner bag supply unit 20-1 (inner bag cutting mechanism 23)>
Next, the inner bag supply unit 20 will be described. As shown in FIG. 5, the inner bag supply unit 20 displays the holding jig 50 (the holding jig 50 will be described later) for holding the inner bag B from above the return path 70 to the top of the outer container P when viewed from the right side. In addition to the first jig transfer mechanism 21 mounted on the surface opening P1, the following is provided. That is, an inner bag stocker portion 22 in which a plurality of inner bags B are set is provided on the left side of the fixed position of the outer container P, and the inner bag B is placed above the inner bag stocker portion 22 from the inner bag stocker portion 22. An inner bag cutting mechanism 23 for cutting out one by one is provided.

<Structure of inner bag supply unit 20-2 (other elements)>
Further, an ionizer 24 that slows down the static electricity of the cut inner bag B is below the inner bag cutting mechanism 23, and the bottom of the cut out inner bag B is inside the outer container P above the inner bag cutting mechanism 23. A first air blow 25 for dropping into the outer container P is provided, and a second air blow 26 for preventing the inner bag B from being sandwiched between the holding jig 50 and the outer container P is provided on the right side of the fixed position of the outer container P. There is.

<Structure of inner bag supply unit 20-3 (inner bag cutting mechanism 23)>
The inner bag stocker portion 22 has a case 221 in which the inner bag B is set, and for example, an inner bag B of about 400 bags is set. The inner bag B set in the case 221 is sucked and cut out one by one by the suction pad 231 provided in the inner bag cutting mechanism 23. After sucking the inner bag B, the suction pad 231 turns 90 degrees upward toward the right side in the drawing with the point pivotally supported by the inner bag cutting mechanism 23 as a fulcrum to lift the opening of the inner bag B. To. Alternatively, the suction pad 231 sucks the inner bag B and then delivers the inner bag B to the rotary chuck 232, and the rotary chuck 232 is pivotally supported by the inner bag cutting mechanism 23 as a fulcrum on the right side in the drawing. The opening of the inner bag B may be lifted by turning 90 degrees upward, which makes it possible to increase the suction success rate of the inner bag B without having to rotate the suction pad 231. Become. In this state, the opening of the inner bag B is delivered to the holding jig 50 detachably gripped by the first jig transfer mechanism 21.

<Structure of inner bag supply unit 20-4 (first jig transfer mechanism 21)>
Here, the first jig transfer mechanism 21 will be described. As shown in FIG. 5, the first jig transfer mechanism 21 can move left and right along the rails 211 erected on the left and right sides in the drawing and can move up and down in the right side view. It is provided with the configured jig transfer head 212. The jig transfer head 212 is provided with a jig chuck and a coupler for gripping the holding jig 50, and the jig transfer head 212 is for operating the holding jig 50 via the coupler. Supply air.

<Structure of inner bag supply unit 20-5 (first jig transfer mechanism 21)>
The first jig transfer mechanism 21 grips the holding jig 50 on the return path 70, moves to the left side in the drawing, and holds and cures in the inner bag B whose opening is lifted by the inner bag cutting mechanism 23. The jig 50 is opposed to each other. Then, the opening of the inner bag B is held by the holding jig 50 to which air is supplied, and the bag B is moved to the right side in the drawing. The inner bag B delivered to the holding jig 50 is positioned so as to cover the top opening P1 of the outer container P, and the center of the inner bag B is the center of the top opening P1 of the outer container P. It is pulled out to a position that almost matches.

<Structure of inner bag supply unit 20-6 (first jig transfer mechanism 21)>
When the ionizer 24 removes static electricity from the inner bag B and the center of the inner bag B reaches the center of the top opening P1 of the outer container P by utilizing the period during which the inner bag B is pulled out, that is, the holding jig. When 50 moves to the left side to a position above the top opening P1 of the outer container P, the first air blow 25 blows air from above to the inner bag B to drop the inner bag B into the outer container P. .. After that, the first jig transfer mechanism 21 mounts the holding jig 50 on the top opening P1 of the outer container P. At that time, the second air blow 26 blows air so that the inner bag B is not sandwiched between the holding jig 50 and the top opening P1 of the outer container P.

<Structure of holding jig 50-1>
Here, the holding jig 50 will be described. In the present embodiment, when the holding jig 50 is mounted on the outer container P conveyed to the inner bag supply unit 20 and automatic filling is executed, the opening of the inner bag B inside the outer container P is opened as necessary. It is configured to hold the part. The holding jig 50 is mounted on the outer container P and flows from the inner bag supply unit 20 to the filling portion 30 and the sealing portion 40 on the downstream side together with the outer container P. Then, as will be described later, the sealing portion 40 delivers the inner bag B to the sealing chuck 43, and then is separated from the outer container P on the downstream side of the sealing portion 40 including the sealing portion 40 to the inner bag supply portion 20. Will be returned. The holding jig 50 can reduce pinholes (damage to the inner bag B caused by hooking the inner bag B on protrusions such as scratches on the outer container P) that becomes a problem when manually filling.

<Structure of holding jig 50-2>
As shown in FIGS. 3 and 4, the holding jig 50 is provided on a horizontally long main body 51, a contact plate 52 provided at the lower part of the rear surface of the main body 51, and abutting on the outer circumference of the outer container P, and both ends of the main body 51. A pair of bag chucks 53 that are provided and hold both ends of the opening of the inner bag B, and a stag beetle square bag guide 54 that is provided on the front surface of the main body 51 and prevents the outer container P and the inner bag B from rubbing. I have.

<Structure of holding jig 50-3>
The abutting plate 52 abuts on the outer circumference of the outer container P to prevent the holding jig 50 from falling from the outer circumference of the outer container P. The pair of "H" -shaped bag chucks 53 hold both ends of the opening of the inner bag B, and are composed of an upper jaw 531 and a lower jaw 532, and are a stainless steel cylinder as shown by an arrow A in FIG. Holds the inner bag B so that the upper and lower jaws mesh with each other. The distance between the pair of bag chucks 53 can be widened and narrowed as shown by the arrow B in FIG. 3, and is always urged outward, that is, in the expanding direction by the built-in spring, and the opening of the inner bag B is described later. When expanding the portion, the cam followers connected to the pair of bag chucks 53 are narrowed by moving them toward the center.

<Structure of holding jig 50-4>
The bag guide 54 is formed by bending a rod-shaped member into a symmetrical stag beetle shape, and is configured to open from the side of the opening of the outer container P. The bag guide 54 can also be widened (operated like a stag beetle corner) by a stainless steel cylinder as shown by an arrow C in FIG. The edge portion of the holding jig 50 that comes into contact with the inner bag B and the outer container P is preferably R-shaped as much as possible. Further, it is more preferable that the holding jig 50 or the inner bag supply unit 20 has a holding confirmation sensor that detects that the inner bag B is securely held.

<Structure of filling portion 30-1>
Next, the filling portion 30 will be described. As shown in FIG. 6, the filling unit 30 has a filling nozzle 32 for filling powder or liquid and a tip of the filling nozzle 32, in addition to a jig operating mechanism 31 for gripping the holding jig 50 in a detachable manner. The outer container P is conveyed from the covering receiver 33, the measuring instrument 34 that measures the weight of the outer container P before and after filling, and the inner bag supply unit 20 on the upstream side, or to the closed portion 40 on the downstream side, and the outer container P is transported. It is provided with an outer container transport chuck 61 that regulates the position of P.

<Structure of filling portion 30-2>
The arrangement relationship of each of these elements is as follows. Figure 6 shows the right side of the filling portion 30, both the side of the fixed position of the outer container P (in the figure, the front side and back side) of the outer container carrying chuck 61 which can sandwich the outer container P in, A measuring instrument 34 is below the fixed position of the outer container P, a filling nozzle 32 that can move up and down is above the fixed position of the outer container P, and a filling nozzle 32 is above the fixed position of the outer container P. A jig operating mechanism 31 that can move up and down is provided at a position that does not interfere with the container.

<Structure of filling part 30-3 (tare measurement)>
In the filling portion 30, the holding jig 50 is mounted on the top surface opening P1 of the outer container P, the opening of the inner bag B is held by the holding jig 50, and the inner bag B is inside the outer container P. It is sandwiched and transported by the outer container transport chuck 61 in a state of being contained in the container. After the outer container transport chuck 61 is released, the tare measurement of the outer container P is performed by the measuring instrument 34. Here, when the tare measurement is completed, the outer container transport chuck 61 holds and fixes the outer container P again.

<Structure of filling portion 30-4 (jig operating mechanism 31)>
The jig operating mechanism 31 includes rails 311 erected vertically in the drawing and a jig operating head 312 configured to be vertically movable along the rail 311 in the right side view. The jig operation head 312 operates a jig chuck that grips the holding jig 50, a bag opener 313 that widens the opening of the inner bag B, and a cam follower connected to the bag chuck 53 of the holding jig 50 to operate the bag chuck. It has a bag chuck that moves 53 inward. The bag opener 313 has a suction pad 315 at the base end and the tip of the expandable arm 314. After pulling the arm 314 toward the base end side and sucking the opening of the inner bag B with the suction pad 315, the arm Return the 314 to its original position and open the opening of the inner bag B. At this time, the bag chuck 53 of the holding jig 50 is moved inward by the bag chuck.

<Structure of filling portion 30-5 (filling nozzle 32)>
When the mouth of the inner bag B is opened, the sagging receiver 33 rotates on a flat surface and is removed from the tip of the filling nozzle 32. When the dripping receiver 33 is removed, the filling nozzle 32 starts descending, but starts filling until the tip thereof is inserted into the inside of the outer container P near the top opening P1 of the outer container P. At that time, small filling is performed first, and then the tip of the filling nozzle 32 is inserted into the outer container P and inserted to the vicinity of the bottom (height within 10 cm from the bottom) to start large filling. By making a small filling first, even if the lower end of the inner bag B is outside the outer container P, the lower end of the inner bag B is dropped into the outer container P and the bag is steadily opened. Can be. In accordance with the first small filling, the inner bag B expands due to the small filling, and while the jig operating head 312 holds the opening of the inner bag B by the holding jig 50, the inner bag B is expanded. The holding jig 50 is raised until the lower end of the outer container P is lifted from the bottom surface of the outer container P, and large filling is started. This makes it possible to align the center line (heat seal line on the bottom side) of the bottom of the inner bag B with the filling nozzle 32. As the large filling progresses, the filling nozzle 32 rises to maintain a distance from the surface of the powder or liquid, and the jig operating head 312 is adjusted so that the inner bag B is not wrinkled or torn. Descend.

<Structure of filling portion 30-6 (filling nozzle 32)>
When the large filling is completed, the holding jig 50 is mounted on the outer container P, the outer container transport chuck 61 is opened, the tare measurement result is taken into consideration by the measuring instrument 34, and the filling amount is measured to obtain the target value. Small filling is performed until the filling amount is reached. A valve is built in the filling nozzle 32, and the filling amount is controlled while the valve is closed stepwise. The valve opening is adjusted by a servomotor. Then, when the small filling is completed, the filling nozzle 32 rises and the dripping receiver 33 rotates to cover the tip of the filling nozzle 32. The jig operation head 312 opens the bag chuck approach, and the bag chuck 53 of the holding jig 50 expands to the left and right to close the opening of the inner bag B.

<Effect of filling part 30>
With the above series of configurations, even the inner bag B, which is arranged in the outer container P and does not have a special spout or the like, can be filled with powder or liquid with high accuracy and is almost full. When the opening time and area of the inner bag B can be reduced and the filling material is a food product, particularly a food product such as a liquid egg in which the growth of bacteria is of particular concern, dust / falling bacteria are mixed in the space. It is possible to reduce the amount of food and provide hygienic food.

<Structure of sealed portion 40-1>
Next, the sealed portion 40 will be described. As shown in FIG. 7, the sealing portion 40 is added to the second jig transfer mechanism 41 for transferring the holding jig 50 for holding the inner bag B from the opening of the outer container P onto the return path 70. The degassing mechanism 42 for removing the air above the powder or granular material or liquid filled in the inner bag B, the sealing chuck 43 for changing the inner bag B from the holding jig 50, and the inner bag B are heat-sealed. It is provided with a sealing mechanism 44. The second jig transfer mechanism 41 may be installed downstream of the sealing portion 40 including the sealing portion 40, and is not necessarily provided in the sealing portion 40, but is provided in the sealing portion 40. If this is done, the filling and packaging machine 1 can be designed to be compact, and therefore, it will be described here assuming that it is provided in the sealing portion 40.

<Structure of sealed portion 40-2>
The arrangement relationship of each of these elements is as follows. In the right side view in the figure, the degassing mechanism 42 that can move up and down is above the fixed position of the outer container P, and the sealing chuck 43 that can move left and right is on the left side of the fixed position of the outer container P. A sealing mechanism 44 that can move left and right on the left side of the fixed position of P and above the sealing chuck 43, and up and down at a position above the fixed position of the outer container P that does not interfere with the degassing mechanism 42. A second jig transfer mechanism 41 that is movable and can be moved left and right is provided respectively.

<Structure of Sealed Part 40-3 (Degassing Mechanism 42)>
In the closed portion 40, the holding jig 50 is mounted on the top opening P1 of the outer container P, the opening of the inner bag B is held by the holding jig 50, and the powder or granular material is inside the inner bag B. Alternatively, it is transported in a state of being filled with liquid. In the sealing portion 40, the internal air above the powder or granular material or the liquid is degassed before the inner bag B is sealed, but the inner bag B in the transported outer container P is degassed. The mechanism 42 descends to degas the internal air above the granular material or liquid. The degassing mechanism 42 may be one in which a nozzle is inserted into the inner bag B and sucked, or one that is pushed out from the outside of the inner bag B, but in the former, it is possible to suck in the filled powder or liquid. The latter is preferable in this respect because it may not be sexless.

<Structure of Sealed Part 40-4 (Degassing Mechanism 42)>
As a material for pushing out air, it is preferable to provide a pair of substantially triangular or substantially semicircular plate portions 421 at the tip of the degassing mechanism 42. The plate portion 421 is flexibly attached to the vertical drive so as to reasonably contact the shape of the inflated inner bag B. The amount of lowering of the plate portion 421 is adjustable according to the amount of powder or granular material or liquid filled in the inner bag B. Further, the amount of air to be degassed is such that the lid of the outer container P can be closed after the mouth of the inner bag B is sealed.

<Structure of Sealed Part 40-5 (Degassing Mechanism 42)>
When degassing, the holding jig 50 holds the opening of the inner bag B, that is, the opening is relative to the filling portion of the inner bag B filled with powder or liquid. Since it is in the lifted state, it is possible to bleed air without disturbing the opening of the inner bag B that will be sealed in the next stage.

<Structure of Sealed Part 40-6 (Sealing Mechanism 44)>
When the degassing from the inner bag B is completed, the sealing chuck 43 advances toward the inner bag B (to the right in the drawing). Then, the opening of the inner bag B is held around the position held by the holding jig 50 (see FIG. 8). When the sealing chuck 43 holds the opening of the inner bag B, the holding jig 50 opens the opening of the inner bag B held by the bag chuck 53, and the bag guide 54 expands. The holding jig 50 is retracted from the fixed position of the outer container P by the second jig transfer mechanism 41. When the opening of the inner bag B is changed from the holding jig 50, the sealing chuck 43 receives the inner bag B in a state where the bag chuck 53 pulls the opening left and right (longitudinal direction of the opening) as it is. It may be pulled further to the left and right.

<Structure of Sealed Part 40-7 (Sealing Mechanism 44)>
As shown in FIG. 8, the sealing chuck 43 is configured such that a pair of U-shaped holding portions 431 face each other so as not to interfere with the bag chuck 53 and the sealing mechanism 44. The inner bag B delivered from the bag chuck 53 is held by the two horizontal lines of "ko", and the sealing mechanism 44 can be positioned in the space between the bag chuck 53 and the vertical line. As a result, the sealing mechanism 44 can be heat-sealed over the entire section including both ends of the opening of the inner bag B. Further, the seal chuck 43 detects that the inner bag B is securely held by the seal chuck 43, for example, in the vertical line portion of "U", as in the holding jig 50 described above. It is even more preferable to have a holding confirmation sensor.

<Structure of Sealed Part 40-8 (Sealing Mechanism 44)>
The sealing mechanism 44 is provided above the sealing chuck 43, waits for the holding jig 50 to retract, and moves toward the upper part of the position where the sealing chuck 43 of the inner bag B is held (in the right direction in the drawing). To) Move forward. The tip of the sealing mechanism 44 is formed in the shape of a crab sandwich, and when it comes to the corresponding position of the inner bag B, it includes both ends of the opening of the inner bag B at a position corresponding to the U-shaped space of the sealing chuck 43. Start heat sealing by sandwiching the entire section from both sides. The sealing method is not particularly limited as long as it is a thermal sealing method, but the impulse sealing method is preferable from the viewpoint of sealing strength.

<Structure of sealed portion 40-9 (second jig transfer mechanism 41)>
Here, the second jig transfer mechanism 41 will be described. As shown in FIG. 7, the second jig transfer mechanism 41 can move left and right along the rails 411 erected on the left and right in the figure and the rails 411 in the right side view, and can move up and down. It is provided with the configured jig transfer head 412. The jig transfer head 412 is provided with a jig chuck and a coupler that detachably grip the holding jig 50, and the jig transfer head 412 operates the holding jig 50 via the coupler. Supply the air to make it.

<Structure of sealed portion 40-10 (second jig transfer mechanism 41)>
The holding jig 50 opens the inner bag B, retracts from the top opening P1 of the outer container P by the second jig transfer mechanism 41, and then moves to the return path 70 on the right side of the drawing as it is, and then moves to the return path 70. Reprinted on 70. Then, the holding jig 50 is sequentially returned to the inner bag supply unit 20 by the operation of the filling and packaging machine 1. Note that FIG. 1 shows an example in which seven holding jigs 50 are prepared, but this is so that there is no transfer blank for six outer containers P on the transport path 60. It is a plus one. When the operation is stopped, there is still space for 6 pieces on the return path 70, so the 7th holding jig 50 is stored by providing a lifter 71 above the return path 70 behind the sealed standby unit 304. ing.

<Effect of sealed part 40>
With the above series of configurations, even if the inner bag B is arranged in the outer container P and does not have a special spout or the like, the amount of air can be reduced to cover the outer container P, and a seal failure or the like occurs. It is possible to fill the powder or liquid almost completely without causing it.

<Matters common to all parts>
In the inner bag supply unit 20, the filling unit 30, and the sealing unit 40, the range of vertical movement of the holding jig 50, the filling nozzle 32, the degassing mechanism 42, etc., and the height of the outer container P are the heights of the outer container P. It is stored in a non-volatile memory in a control mechanism such as a computer separately installed according to the container size (for example, 10L, 16L, etc. as described above), and when the filling and packaging machine 1 is operated, the container size and By setting the filling amount, it is automatically set to an appropriate value. Further, if an outer container P having a height that cannot be handled by the filling / packaging machine 1 is thrown in, the control mechanism detects it, and after notifying that the outer container P has been erroneously put in, the filling / packaging machine Do not start or stop the operation of 1.

<Explanation of filling and packaging method>
(Operation of the embodiment)
Next, as an operation of the present embodiment, a method of filling and packaging powder or liquid using the filling and packaging machine 1 having the above configuration will be described.

<Overall configuration of filling and packaging method>
The filling and packaging method according to the present embodiment is roughly divided into an outer container supply step S10 for supplying the outer container P, an inner bag supply step S20 for supplying the inner bag B to the inside of the outer container P, and an inner bag B. The filling step S30 for filling the inside with the powder or the liquid, and the sealing step S40 for removing the air above the powder or the liquid filled inside the inner bag B and heat-sealing the inner bag B are provided. ing. Hereinafter, each step will be described in detail.

<Outer container supply step S10>
First, the outer container supply step S10 will be described with reference to FIGS. 1 and 2. The outer containers P are placed on the outer container stocker section 11 of the outer container supply section 10 in a stacked state (step S11). The outer container P is a lowermost outer container cut out by stepping the stacked outer containers P one by one from the bottom in the step disassembling portion 112 adjacent to the payout portion 12 of the outer container stocker portion 11. P is supplied to the payout unit 12 by the conveyor 111 (step S12). When the outer container P is placed in the payout unit 12 of the outer container supply unit 10 in a state of facing the downstream transport direction, the pair of the top opening P1 of the outer container P in the inner bag supply unit 20. The outer container P may be rotated 45 degrees between the outer container supply unit 10 and the inner bag supply unit 20 so that one of the angular directions is substantially parallel to the transport direction (step S13).

<Inner bag supply step S20-1>
Next, the inner bag supply step S20 will be described with reference to FIG. Before the work is started, the holding jig 50 is placed on the return path 70 behind the inner bag supply unit 20 (on the right side in the drawing), and the first jig transfer mechanism The jig transfer head 212 of 21 is located directly above the holding jig 50 mounted on the return path 70 (above, step S21). In this state, when the outer container P is conveyed to the inner bag supply unit 20 by the transport path 60, the supply of the inner bag B to the inside of the outer container P is started by the following procedure.

<Inner bag supply step S20-2>
The jig transfer head 212 descends in the return path 70 behind the inner bag supply unit 20, closes the jig chuck, fixes the holding jig 50, and then rises. At this time, the jig transfer head 212 connects the coupler with the holding jig 50 to open the air supply path. Then, air is supplied from the jig transfer head 212 to the holding jig 50 to open the bag chuck 53 of the holding jig 50 and the inner bag guide of the bag guide 54. In combination with these operations, the suction pad 231 of the inner bag cutting mechanism 23 is lowered toward the bundle of the inner bags B continuously placed on the inner bag stocker portion 22, and the suction pad 231 is evacuated. As a result, the inner bag B on the uppermost stage is adsorbed (above, step S22).

<Inner bag supply step S20-3>
When the vacuum value of the suction pad 231 reaches a predetermined value, the suction pad 231 turns 90 degrees upward about the fulcrum with the inner bag cutting mechanism 23 toward the back side of the device (right side in the figure), or is a rotary chuck. Hand over the inner bag B to 232. When the rotary chuck 232 receives the inner bag B, the suction pad 231 does not rotate, and the rotary chuck 232 moves upward toward the back side of the device (right side in the drawing) about the fulcrum with the inner bag cutting mechanism 23. Turn around. At this time, the ionizer 24 starts static elimination of the inner bag B. In combination with these operations, the jig transfer head 212 moves forward from the return path 70 side on the back side of the device (right side in the figure) to the front side of the device (left side in the figure) while holding the holding jig 50, and is outside. When the container P passes over the transport path 60 to which the container P is transported, it descends to a position corresponding to the suction pad 231. Then, when the holding jig 50 comes into contact with the inner bag B sucked on the suction pad 231 on the surface of the bag chuck 53 of the holding jig 50, the bag chuck 53 is closed to hold the inner bag B and suck it. The vacuum of the pad 231 is broken to release the adsorption (above, step S23).

<Inner bag supply step S20-4>
The jig transfer head 212 retracts once with the holding jig 50 holding the inner bag B, with the center of the inner bag B and the center of the outer container P as a guide. When the retreat is completed, the static elimination by the ionizer 24 is completed. Then, air is blown by the first air blow 25 onto the inner bag B which is in a state of covering the top opening P1 of the outer container P, and the bottom of the inner bag B is dropped into the inside of the outer container P ( As mentioned above, step S24).

<Inner bag supply step S20-5>
The jig transfer head 212 advances to a position where the holding jig 50 is directly above the back side (right side in the drawing) of the top surface opening P1 of the outer container P (above, step S25).

<Inner bag supply step S20-6>
The jig transfer head 212 descends and mounts (transfers) the holding jig 50 on two sides on the inner side of the top surface opening P1 of the outer container P. At this time, air is blown between the holding jig 50 and the top opening P1 of the outer container P by the second air blow 26 provided under the return path 70, and the holding jig 50 and the outer container P are separated from each other. The inner bag B is prevented from being sandwiched between the top surface opening P1 and the inner bag B. At the same time, the bag guide 54 is closed. When the bag guide 54 is closed, the coupler of the jig transfer head 212 and the holding jig 50 is disconnected. Then, the jig chuck is opened to release the grip between the holding jig 50 and the jig transfer head 212 (above, step S26).

<Inner bag supply step S20-7>
After releasing the holding jig 50, the jig transfer head 212 moves up and back toward the return path 70. The retreating position is within a range that does not interfere with the next holding jig 50 that is then conveyed on the return path 70 (above, step S27).

<Inner bag supply step S20-8>
When the next holding jig 50 arrives at the position corresponding to the inner bag supply unit 20 on the return path 70, the jig transfer head 212 is directly above the next holding jig 50 arriving on the return path 70. Move (above, step S28). When the movement is completed, the process returns to the state of step S21. The outer container P is conveyed to the next filling step S30.

<Filling step S30-1>
Next, the filling step S30 will be described with reference to FIG. Before the work is started, the filling nozzle 32 and the jig operating mechanism 31 are on standby upward so as not to interfere with the outer container P and the holding jig 50 (above, step S31). In this state, when the outer container P is conveyed to the filling portion 30 by the conveying path 60 with the holding jigs 50 mounted on the two sides on the inner side of the top opening P1 by the following procedure, the outer container P is conveyed. Filling of the inner bag B with powder or liquid is started.

<Filling step S30-2>
When the outer container P is conveyed to a fixed position by the outer container transport chuck 61, the jig operating mechanism 31 is lowered, and the bag opener 313 is lowered to just above the opening of the inner bag B (above, step S32). By providing such a stop time, the shaking when the outer container P and the holding jig 50 are conveyed by the outer container transfer chuck 61 is suppressed.

<Filling step S30-3>
Next, the outer container transport chuck 61 is released one side at a time to perform tare measurement (above, step S33). By releasing each side at a time, it is possible to reduce the shaking caused by removing the outer container transport chuck 61.

<Filling step S30-4>
When the tare measurement is completed, the outer container P is fixed again by the outer container transport chuck 61, the jig operating mechanism 31 is lowered, and the bag opener 313 comes to the opening of the inner bag B. The arm 314 is pulled toward the base end side, the suction pad 315 of the bag opener 313 is pulled toward the jig operating mechanism 31, the opening of the inner bag B is sucked by the suction pad 315, and then the arm 314 is returned to the original position. By returning the suction pad 315 to the advanced position, the opening of the inner bag B is widened. At that time, the bag chuck 53 of the holding jig 50 is narrowed (above, step S34).

<Filling step S30-5>
The dripping receiver 33 that has covered the tip of the filling nozzle 32 until then is removed. Then, the filling nozzle 32 descends toward the opening of the inner bag B opened by the bag opener 313. At this time, the tip of the filling nozzle 32 is stopped once near the top opening P1 of the outer container P until it is inserted into the outer container P to start small filling, and the inner bag B is filled with the outer container P. Drop it inside the bag and steadily open the bag. After that, the tip of the filling nozzle 32 is subsequently inserted to the vicinity of the bottom of the outer container P (height within 10 cm from the bottom), and at the same time, the holding jig 50 is raised by the jig operating mechanism 31, and the inner bag B is filled in a small amount. The lower end of the inner bag B is separated from the bottom surface of the outer container P, and the large filling is started (above, step S35).

<Filling step S30-6>
In this state, filling proceeds by the filling nozzle 32. During filling, the jig operating mechanism 31 lowers the inner bag B so as not to cause wrinkles, sagging, tearing, or the like. Further, the filling nozzle 32 is raised to keep the distance between the tip thereof and the surface of the powder or liquid to be filled constant. Filling is performed in two stages, large filling (coarse filling) and small filling (adjusted filling). During the large filling, the outer container transport chuck 61 is released and the holding jig 50 is mounted on the outer container P. Then, the jig chuck of the jig operation mechanism 31 is opened, and after considering the tare measurement result by the measuring instrument 34, the filling amount is measured and the filling amount is smallly filled until the filling amount reaches the target value (the above is step S36). ).

<Filling step S30-7>
When the filling is completed, the filling nozzle 32 rises to the standby position in step S31, and the dripping receiver 33 returns to the position covering the tip of the filling nozzle 32. On the other hand, the jig operating mechanism 31 closes the jig chuck and is reconnected to the holding jig 50 to release the suction of the suction pad 315 of the bag opener 313 and expand the bag chuck 53 of the holding jig 50. Close the opening of the inner bag B. After that, the jig chuck of the jig operating mechanism 31 is opened, and the holding jig 50 is separated from the jig operating mechanism 31 (above, step S37).

<Filling step S30-8>
The jig operating mechanism 31 rises to the standby position. When the ascent is completed, the state of step S31 is reached (above, step S38). The outer container P is conveyed to the next sealing step S40.

<Sealing step S40-1>
Next, the sealing step S40 will be described with reference to FIG. Before the work is started, the plate portion 421 of the degassing mechanism 42 and the jig transfer head 412 of the second jig transfer mechanism 41 are moved upward so as not to interfere with the outer container P and the holding jig 50. I'm waiting at. Further, the sealing chuck 43 and the sealing mechanism 44 for sealing the inner bag B are on standby in front of the device (left side in the drawing) (above, step S41). In this state, when the outer container P is conveyed to the sealed portion 40 by the transport path 60 with the holding jigs 50 placed on the two sides on the inner side of the top opening P1 by the following procedure. , The degassing and sealing of the inner bag B is started. The holding jig 50 may be removed from the outer container P in a step after the sealing step including the sealing step, and the second jig transfer mechanism 41 does not necessarily have to be provided in the sealing portion 40. Since the filling and packaging machine 1 can be designed to be compact if it is provided in the sealed portion 40, it will be described here assuming that it is provided in the sealed portion 40.

<Sealing step S40-2>
When the outer container P is conveyed to the fixed position, the plate portion 421 is lowered to an arbitrary height required for removing air above the powder or granular material or the liquid of the inner bag B. The sealing chuck 43 advances toward the outer container P and rises around the bag chuck 53 of the holding jig 50 to hold the inner bag B. When the inner bag B is held by the sealing chuck 43, the bag chuck 53 and the bag guide 54 of the holding jig 50 are opened (above, step S42).

<Sealing step S40-3>
When the plate portion 421 returns to its original height, when the lower end of the plate portion 421 comes to a position higher than the upper end of the inner bag B, the sealing chuck 43 is on the front side of the device (left side in the figure). In addition, it moves within a range that does not intersect with the bag chuck 53 of the holding jig 50 (above, step S43).

<Sealing step S40-4>
The holding jig 50 is retracted by the jig transfer head 412 to avoid the intersection of the sealing chuck 43 and the bag guide 54 of the holding jig 50 on the plane (above, step S44).

<Sealing step S40-5>
The holding jig 50 is raised by the jig transfer head 412. As a result, when the lower surface of the holding jig 50 exceeds the height of the sealing mechanism 44, the sealing mechanism 44 advances to a position corresponding to the sealing chuck 43. The bag chuck 53 and the bag guide 54 of the holding jig 50 are closed, the coupler is released from the jig transfer head 412, and the air connection is cut (above, step S45).

<Sealing step S40-6>
In this state, the advancing sealing mechanism 44 sandwiches the opening of the inner bag B and heat-seals. The sealing conditions can be, for example, heating for 1.9 seconds, cooling for 2.7 seconds, and pressing force of 2 kg / cm ² , but these conditions can be adjusted. During this time, the jig transfer head 412 transfers the holding jig 50 onto the return path 70 and then returns to the upper part of the outer container P (above, step S46).

<Sealing step S40-7>
After cooling, the sealing chuck 43 opens the inner bag B and returns to the original position. At the same time, the sealing mechanism 44, which has finished cooling, also returns to its original position. When both positions are returned, the state of step S41 is reached (above, step S47). The outer container P is dispensed from the filling and packaging machine 1.

<Effect of embodiment>
The effects of the described embodiments will be described above. According to the present embodiment, the inner bag B having a special mouth portion (special spout, etc.) is not required, and the outer container P and the inner bag B do not need to be held separately, so that the filling and packaging is simple. Machine 1 can be provided. Further, there is a degree of freedom during filling, and even when the inner bag B is large, wrinkles and tears can be minimized. Furthermore, the inner bag B having a special mouth portion (special spout, etc.) is not required, and the time during which the inner bag B is open and its opening during processing in the filling and packaging machine 1 and its opening. It is possible to suppress the area, and by extension, the contamination of dust and falling bacteria in the environment, which is suitable for filling foods, especially liquid eggs in which various germs easily propagate. Regarding filling, it is possible to fill powders or liquids with high accuracy near fullness, and it is possible to close the lid of the outer container P.

<Container-filled liquid egg>
The filling / packaging machine 1 according to the present embodiment can use a liquid egg as an example of a liquid and can suitably fill and package the container-filled liquid egg. Similarly, in the filling and packaging method, a liquid egg is used as an example of a liquid, and the containerized liquid egg can be suitably filled and packaged .

<Conclusion>
Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. Further, it is clear from the description of the scope of claims that the form to which such a modification or improvement is added may be included in the technical scope of the present invention.

1 ... Filling and packaging machine 10 ... Outer container supply section (11 ... Outer container stocker section, 12 ... Payout section)
20 ... Inner bag supply unit (21 ... 1st jig transfer mechanism, 22 ... Inner bag stocker unit, 23 ... Inner bag cutting mechanism, 24 ... Ionizer, 25 ... 1st air blow, 26 ... 2nd air blow)
30 ... Filling part (31 ... Jig operation mechanism, 32 ... Filling nozzle, 33 ... Dripping receiver, 34 ... Measuring instrument)
40 ... Sealed part (41 ... Second jig transfer mechanism, 42 ... Degassing mechanism, 43 ... Seal chuck, 44 ... Sealing mechanism)
50 ... Holding jig (51 ... Main body, 52 ... Abutment plate, 53 ... Bag chuck, 54 ... Bag guide)
60 ... Transport path (outer container P. 61 ... Outer container transport chuck)
70 ... Return path (of holding jig 50 )
P ... outer container B ... inner bag

Claims (4)

A filling and packaging machine that fills a flexible inner bag arranged inside a rigid outer container with powder or liquid and seals the inner bag.
A filling portion for filling the inner bag arranged inside the outer container with powder or liquid.
A holding jig capable of holding the opening of the inner bag in the longitudinal direction thereof is provided.
The filling part
An outer container transport chuck that holds the outer container and regulates its position,
A measuring instrument for measuring the outer container and
A jig operation mechanism for gripping the holding jig in a detachable manner is provided.
The lower end of the inner bag is the outer container of the holding jig while the jig operating mechanism is holding the inner bag in accordance with the start of filling the inner bag with the powder or the liquid. Raise it from the bottom of the bag until it rises.
As the filling of the powder or the liquid progresses into the inner bag, the jig operating mechanism lowers the holding jig until it is mounted on the top opening of the outer container. Characterized filling and packaging machine. The outer container is released from the outer container transport chuck, and the measuring instrument performs a tare measurement of the outer container while the holding jig holds the opening of the inner bag.
The tip of the filling nozzle provided in the filling portion is near the top opening of the outer container, and the filling nozzle starts small filling by the time it is inserted into the inside of the outer container .
The tip of the filling nozzle is inserted into the outer container to start large filling,
When the large filling is completed, the tare measurement result is subtracted by the measuring instrument, and the small filling is performed until the filling amount reaches the target value.
After the filling of the target value is completed, the holding jig closes the opening of the inner bag.
The filling and packaging machine according to claim 1. A filling and packaging method in which a flexible inner bag arranged inside a rigid outer container is filled with powder or liquid, and the inner bag is sealed.
The inner bag arranged inside the outer container is provided with a filling step of filling the inner bag with powder or liquid.
In the filling step
Hold the outer container and adjust its position,
Weigh the outer container and
Including expanding the inner bag by filling with the powder or the liquid.
While the inner bag is expanded by filling with the powder or the liquid, the lower end thereof is raised until it rises from the bottom surface of the outer container.
A filling and packaging method, wherein the inner bag is filled with the powder or granular material or the liquid, and the upper end thereof is lowered. Before the filling is started, the outer container is released from the outer container transport chuck that holds the outer container and regulates its position, and the opening of the inner bag is held by the holding jig mounted on the outer container. The tare measurement of the outer container is performed while keeping the condition.
Small filling is started until the tip of the filling nozzle for filling the powder or the liquid is inserted into the inside of the outer container near the top opening of the outer container .
The tip of the filling nozzle is inserted into the outer container to start large filling.
When the large filling of the inner bag is completed, the small filling is performed until the filling amount of the target value is reached by subtracting the tare measurement result.
After reaching the target value filling, the holding jig closes the opening of the inner bag.
The filling and packaging method according to claim 3, wherein the filling and packaging method is characterized.