JP2001341702A - Retainer for self-supportable pouch, and bagging and packaging machine employing the retainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a retainer for a self-supportable pouch which is simple in structure while being capable of maintaining a self-supportable pouch under the state of being opened and adjustable at its part holding the trunk part of the pouch, and to provide a packaging machine suitable for using the said retainer. SOLUTION: A plurality of retainers each having a trunk holding part 3 for holding an inflated trunk part 10a of a pouch 10 with grooves 7 and 8 for inserting side edges of the pouch therein provided at both sides thereof are arranged in a row. The internal surface of the trunk holding part and the surfaces at the inside of the grooves form appropriate angles, and both of them are connected with connecting parts 9 each in an appropriate shape, or protuberances 76 are provided at the connected parts. The retainer 82 is constructed of two half bodies 110 each having a main body part 92, an arm 93 and a support part 94, and both of the half bodies are made movable against each other. The cross-sectional dimension of the trunk holding part 96 is made adjustable while the height of the trunk holding part is made adjustable with a bottom supporting plate 98 being made movable in the vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retainer for a self-standing packaging bag used in an automatic bagging and packaging machine for foods and the like, and more particularly, to a retainer body in which a plurality of retainers are integrated. Further, the present invention relates to a bag packaging machine using the retainer body.

[0002]

2. Description of the Related Art Conventionally, as typified by retort foods, machines have been put to practical use that use bag-like containers and pack and pack foods and the like into the bag-like containers. In an automatic filling device using a bottle or a can, it is possible to continuously move and fill a container at a high speed, but when filling such a bag-like container, the bag itself has no rigidity. for,
Since the configuration is such that the bag is gripped and transported by the gripper, there is a limit to speeding up.

In Japanese Patent Application Laid-Open No. 9-66912,
A packaging device employing an integrated retainer in which a plurality of retainers for receiving bag-shaped containers are arranged in parallel is disclosed. In this packaging apparatus, the movement of the retainer and therefore the container is intermittent, and the movement of the conveyor is slower than in the above-described filling and packaging apparatus for bottles and cans. A plurality of processes can be performed, and as a result, the speed can be increased.

However, in this packaging apparatus, each retainer has a double structure composed of an inner container and an outer container. Further, a large number of through holes are provided in the inner container to expand the container, and The inside is connected to a vacuum source for suction, and the bag is opened by adsorbing the front and back or front and back sheet portions to the inner surface of the inner container, and the structure is extremely complicated. In addition, when moving between each process, the connection with the vacuum source is cut off, so the expanded state of the bag collapses during that time, and even if vacuum is applied in the next process, the normal expanded state May not be obtained, and there is a possibility that the filling of the contents may be hindered.

[0005] The retainer is always soiled during the bag-packing operation and must be cleaned. However, this structure is extremely difficult to clean, and especially the hole of the inner container cannot be cleaned.

Further, the size of the bag as a container may vary depending on the product, and accordingly, the retainer needs to be replaced.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems. The present invention relates to a retainer body for a self-standing packaging bag used in an automatic bagging and packaging machine. It is an object of the present invention to provide a simple retainer body.

It is another object of the present invention to provide a retainer body having a configuration in which the expanded self-supporting packaging bag can maintain the opened state.

It is another object of the present invention to provide a retainer body in which the size of a body storage portion for housing the body portion of the bag can be adjusted according to the size of the packaging bag.

[0010] It is a further object of the present invention to provide a bag-filling and packaging machine configured to use the retainer suitably.

[0011]

In order to solve the above-mentioned problems, in a retainer body for a free-standing packaging bag according to the present invention, a plurality of retainers for holding the self-standing packaging bag in a standing state are arranged in parallel. . Each of the retainers includes a body storage portion for storing the expanded body portion of the packaging bag when the bag is expanded, and grooves provided at symmetrical positions of the body storage portion. This groove is formed such that one end is open and communicates with the inside of the trunk storage portion, and the other end is extended so as to be away from each other in the left and right opposite directions. The body of the bag is at least partially insertable. The body storage part includes a body surrounding part that at least partially surrounds the bag body, and a bottom part that receives the bottom part of the packaging bag. The dimensions of the body storage portion and the groove are set such that their upper ends are lower than the upper end of the package bag in which the containers are stored, and the retainers are arranged such that the grooves of the retainers extend in the same direction.

[0012] In one embodiment, opposing side surfaces of each groove are connected to the inner surface of the body surrounding portion at an inner end thereof to form a connecting portion, and at least this connecting portion has a connecting portion of the package bag in an open state. A configuration is provided for preventing a portion in the storage portion from moving into the groove.

[0013] In a further embodiment, the shape of the torso housing is adjustable, so that the cross-sectional shape and / or the height of the torso housing is adjustable.

[0014] In one embodiment, each retainer is composed of two parts including one groove and a part of the trunk storage portion connected to each groove, and each part is
The grooves are movable with respect to each other in the direction in which the grooves extend.

In the bag packaging machine according to the present invention, a plurality of the above-mentioned retainer bodies are arranged at predetermined intervals in the front-rear direction in a direction substantially perpendicular to the longitudinal direction of the retainer body. The contents are packed in a packaging bag held in the container and packaged. Each device for bagging, sealing, etc., along the direction in which the retainer body moves, is arranged in the longitudinal direction of the retainer body by the same number as the number of retainers included in one retainer body. At least a portion extends in the longitudinal direction of the retainer body, and is arranged in a plurality of rows adjacent to each other in a direction orthogonal to the longitudinal direction of the retainer body, and the devices adjacent in the longitudinal direction of the retainer body are arranged in different rows. .

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited to the embodiments described below.

FIG. 1 is a perspective view of a retainer body 1 according to an embodiment of the present invention. The retainer body 1 is formed by integrating four retainers 2a, 2b, 2c, and 2d, and has an outer shape formed by a front side surface 1a, a rear side surface 1b extending parallel to each other in the longitudinal direction, and a direction substantially perpendicular to the front side surface 1a and the rear side surface 1b. It has a rectangular parallelepiped shape defined by a left side surface 1c and a right side surface 1d parallel to each other and an upper side surface 1e and a lower side surface 1f parallel to each other. Since each of the retainers 2a, 2b, 2c, and 2d is arranged at equal intervals in the longitudinal direction of the retainer body 1 and has the same shape, one of them is represented by reference numeral 2 with reference to FIG. explain. FIG. 2 is a plan view and a front view of the retainer 2. As described later, the self-standing packaging bag 10 is supplied to each of the retainers 2 in a closed state, and is opened in a form shown in FIG. 1 in a bag opening step.

Inside the retainer 2, as described later,
Inflatable trunk 10 of self-supporting packaging bag 10 when expanded
a is provided for storing the body. This storage part 3
Is defined by a surrounding portion 4 that forms a hole having a substantially circular cross section that surrounds the body portion, and a bottom portion 5 that receives the bottom of the bag.
The top is open. A through hole 6 is formed at the center of the bottom 5.

A pair of grooves 7 and 8 extending in the diametric direction are formed at positions opposing in the diameter direction of the circle formed by the surrounding portion 4. The grooves 7, 8 are open at the inner ends and communicate with the inside of the storage portion 3, and the respective opposed inner surfaces are connected to the inner surface of the surrounding portion 4, and the connecting portion 9 is formed by a small arc. The body storage part 3 has a size and a shape capable of storing the inflated body part 10a of the self-standing packaging bag that has been expanded as described above, while the distance s between the outer ends of the grooves 7, 8 is closed. It is equal to or larger than the bag width of the packaging bag 10 in the state. The depth of the body storage section 3 and the grooves 7, 8 is shorter than the length of the packaging bag 10. The widths p of the grooves 7 and 8 are determined by the sealed side edges 10b of the packaging bag 10 or the trunk 10a of the packaging bag 10 in the closed state.
Have dimensions that allow insertion. The connecting portion 9
Is that when the packaging bag 10 is expanded in the retainer 2, the portion of the trunk 10a of the bag in the trunk storage portion 3 is restored to the original shape and moves into the grooves 7, 8. Is to be prevented. More specifically, in this embodiment,
A tangent line 3a at a boundary position between the inner surface of the surrounding portion 4 and the connecting portion 9
And the angle θ formed by the extension 7a of the inner wall surface of the groove 7 (8) is
It is quite close to 90 degrees. Therefore, most of the restoring force of the bag 10 in the opened state is a component acting substantially perpendicularly to the inner surface of the body surrounding portion 4 and the connecting portion 9, and is a component along the outer surface of the bag 10 (toward the grooves 7, 8). Component that acts) is extremely small, and as a result, the once-opened packaging bag 1
0 makes it difficult to restore the original shape. In the case of the present embodiment, the bottom surfaces of the grooves 7 and 8 are flush with the inner surface of the bottom portion 5 of the storage portion 3, but the grooves 7 and 8 may be deeper. The storage section 3 and the grooves 7, 8 extend substantially vertically, but are sloped so as to expand upward at the entrance on the upper side 1e side to facilitate insertion of the packaging bag.

FIG. 3 is a view showing the construction of a bag-filling and packaging machine 11 using the above-described retainer body 1. FIG. 4 is a view showing a part of the steps therein, (a) is a plan view, and (b) is a plan view. ) Is a side view. In FIG. 3, reference numerals 12a and 12b denote chain wheels arranged at predetermined intervals, and similar chain wheels (12c, 12c,
12d), each of which is rotatably supported on a parallel shaft (not shown) via a suitable bearing.
And the chain wheels 12a, 12b and 12c,
Endless chains 13a and 13b are hung around 12d, and rotate in the direction of the arrow in the figure. The above-described retainer body 1 is attached to the chain conveyor 14 configured as described above by an appropriate means such that its longitudinal direction extends in the direction perpendicular to the paper surface. A plurality of the retainer bodies 1 are attached at predetermined intervals in the moving direction, and the chain wheel 12 intermittently rotates by a predetermined angle.

Various devices corresponding to respective processing steps are provided above the conveyor 14 along the moving direction of the conveyor. That is, reference numeral 15 denotes a bag supply device in the first step. The packaging bag 10 held in the magazine is taken out one by one using a known suction device or the like, and the bag opening side is turned upward, and the retainer body 1 is turned up. Is inserted into each of the retainers 2 such that the sealed side edges thereof fit into the grooves 7 and 8. As described above, the vicinity of the upper portion of the body storage portion 3 and the grooves 7 and 8 of each retainer 2 has a slope shape.
The insertion of zeros is extremely easy. The bag supply devices 15 are provided by the number of the retainers 2. The same applies to the following devices.

Step 2 is a bag opening step, in which a bag opening device 16 is provided. The bag opening portion of the packaging bag 10 is pulled from both sides by a suction cup, and air is sent into the bag while closing the bag opening with a closing member. Then, the bag 10 is almost completely unfolded. Thereby, the bag 1
0 is fully expanded to its bottom and its bulging body 1
Reference numeral 0a is located in the body storage portion 3 of the retainer 2 and is surrounded by the surrounding portion 4, and both side edges are located in the grooves 7, 8 near the body storage portion 3. The bottom of the bag 10 is expanded and becomes self-supporting as shown. As the bag opening device 16, a known device can be used, and a detailed description is omitted. Packaging bag 1
When the bag is opened in this step, since each retainer 2 has a shape for preventing the inflated bag from returning to its original shape as described above, the opened state is maintained. The following steps can be moved as it is, and operations such as filling of contents can be easily performed.

Step 3 is a solid substance charging step, and step 4 is a liquid charging step. The solid substance charging apparatus 17 and the liquid charging apparatus 18 are provided with a charging hopper and a liquid charging nozzle, respectively. Is filled. As the solid material charging device 17 and the liquid filling device 18, conventionally known devices can be used, and detailed description is omitted.

Step 5 is a steam deaeration step and a press deaeration step. First, steam is blown into the bag using the steam blowing nozzle 19 to replace the air present in the upper portion of the bag 10 with the steam. Next, the upper part of the bag 10 is pushed from both sides by the press device 20 provided with a press plate, and the inside of the bag 10 is evacuated. Known devices can also be used for these devices, and detailed description is omitted.

Step 6 is a bag opening tension and temporary sealing step. This step will be described with reference to FIG. As can be seen from the figure, this process consists of two stations arranged side by side, and each bag mouth tensioning and temporary sealing device 2
Step 1 is for the retainers 2a and 2c.
In addition, the ones for the retainers 2b and 2d are provided in the step 6-2, and the devices 21 are alternately arranged left and right in the drawing for the retainers 2 adjacent to each other in the longitudinal direction of the retainer body 1. This is because the device 21 is relatively complex, and the space occupied by the device at the top of the bag is larger than the space occupied by the hopper of the solids feeding device or the nozzle of the liquid filling device, for example. In order to facilitate work such as maintenance, they are arranged alternately on the left and right sides to increase the space between adjacent devices.

In this step, the bag mouth of the packaging bag 10 is pulled toward both side edges to make it tight, and a substantially central portion of the bag mouth is sealed over a predetermined length. For this purpose, a bag opening tensioning device and a temporary sealing device are provided together. The device 21 will be described with reference to FIG. In the figure, (a) is a front view, (b)
Is a side view. In the figure, reference numeral 22 denotes a portal frame (not shown in FIG. 3), which is installed on a machine base (not shown) so as to straddle the retainer body 1 in its longitudinal direction. On the lower surface side, a bag opening tension air cylinder 24 is mounted via a pair of left and right brackets 23, 23, and movable plates 26, 26 are provided at the ends of telescopic rods 25, 25 provided on both sides thereof. It is hung down and can move to the left and right in the figure (a).

On the outer surfaces of the movable plates 26, 26, gripping member opening / closing air cylinders 28, 28 are rotatably attached to horizontal shafts 27, 27 at their ends. One end of a "L" -shaped lever 31 which is supported so as to rotate integrally with a shaft 30 which is mounted on the moving plate 26 so as to be rotatable, is provided at the distal end of the rod 29 of the cylinder. Are rotatably connected to each other. One gripping member 32 is fixedly attached to the other end of the lever 31. The shaft 30 extends through the moving plate 26, and a drive gear 33 is attached to the inner end so as to rotate integrally with the shaft 30. A driven gear 34 that meshes with the gear 33 is supported by a shaft 35 attached to the moving plate 26 at a position horizontally lateral to the shaft 30.
The shaft 35 and the gear 34 rotate integrally, and a lever 36 to which the other gripping member 37 is fixedly attached at the tip is attached to the outer end of the shaft 35 so as to be integrally rotatable. By operating the air cylinder 28 according to the above configuration, the bag 1 is closed by closing the gripping members 32 and 37.
The bag mouth portion of No. 0 can be grasped by being sandwiched from both sides and opened to be opened.

On the other hand, a temporary sealing cylinder 38 is installed above the portal frame 22, and the rod 39 expands and contracts to open and close a pair of hot plates. That is, FIG.
Referring also to the lower end of the rod 39 of the cylinder 38, a lower end of a connecting lever 40 rotatably connected to one end of a connecting lever 40 is provided.
A toggle mechanism is constituted by being rotatably connected to the connecting portions a and 40b via a shaft. Connecting levers 40a, 40b
Are rotatably supported by the shafts 42a and 42b, respectively, and are rotatably connected to the other ends of the hot plate holding levers 41a and 41b having the heat plates 43a and 43b at one end. . Therefore, when the rod 39 descends, the hot plates 43a, 43
b approach each other and are welded and sealed with the bag mouth of the bag 10 interposed therebetween.

In the bag mouth tensioning and temporary sealing device 21 having the above configuration, before the operation is started, the pair of gripping members 32 and 37 are formed with the rod of the bag mouth tensioning air cylinder 24 retracted. Is located at a position corresponding to both side edges 10b of the bag 10 in which the contents are packed and the body 10a is inflated, and the distance between the bag 10 and the bag 10 is shorter than the closed state. And the air cylinder 2 for opening and closing the gripping member
8 with the rod 29 retracted, the levers 31, 36
5B is in a state rotated 90 degrees clockwise and counterclockwise from the state shown in FIG. 5B, respectively. Further, the rod 39 of the temporary sealing air cylinder 38 is also retracted, and the hot plates 43a and 43b are separated from each other.
Then, when the bag 10 filled with the contents moves downward, first, the gripping member opening / closing air cylinder 28 operates,
The grip members 32 and 37 are brought closer to each other to sandwich the vicinity of both side edges of the bag mouth from both sides. Next, air cylinder 2 for bag opening tension
4 is actuated to move the moving plates 26, 26 away from each other, and to tighten the bag mouth. Next, the temporary sealing air cylinder 38 is operated, and the central portion in the width direction of the bag mouth is welded by the hot plates 43a and 43b within a predetermined range. Thereby, the temporary sealing is completed, and each cylinder operates in reverse to open the bag 10. As described above, in this process, the bag mouth is tensioned to perform the temporary sealing, so that a good seal can be performed in parallel with the bag mouth, wrinkles are generated, and the bag mouth portion is sealed by being shifted back and forth. No such inconveniences occur.

Returning to FIGS. 3 and 4, the description will be continued.
Step 7 is a primary sealing step. This step is also divided into two stations as in the bag mouth tensioning and temporary sealing step of step 6. In this step, the primary sealing devices 45, which may have substantially the same basic configuration as the temporary sealing device used in the step 6, are alternately arranged on the left and right. However, the hot plate used in this device has a length that can be sealed over the entire length of the bag mouth. In this step, unlike the step 6, a device for holding the bag mouth is not provided.
It is because the central part of the bag mouth is sealed over a considerable range by the temporary seal in the previous process, so even without using a gripping device anymore, the bag mouth extends beautifully in its width direction, This is because they are in the same state as being nervous. The next step 8 is a secondary sealing step, in which sealing devices 46, which may be the same as the sealing device in the primary sealing process, are alternately arranged in two stations. Then, the next step 9 is a cooling step. The cooling devices 47 used in this step may have the same configuration as the sealing device used in steps 7 and 8 except that a cooling plate is provided instead of the hot plate. Step 10 is a preliminary step. In the next step 11, the shape of the bag is adjusted using a pair of press plates 48, 48, and then the product is discharged onto a carry-out conveyor (not shown).

In the present embodiment, a device for guiding the side edge of the bag from the temporary sealing step to the cooling step is provided. That is, as shown in FIG. 4, from step 6 to step 9, four pairs of guide bars 51a, 51b, 52a, which guide the side edges 10b at the portions of the packaging bags 10 above the retainer 2, are provided. 52
b, 53a, 53b, 54a and 54b are provided. That is, two portal frames 55a and 55b are erected at a predetermined distance in the moving direction of the conveyor 14. The handle shaft 5 is extended by the handle shaft support plate 56 extending downward from the portal frame 55 and attached thereto.
7 is rotatably supported. A handle 58 is attached to one end of the handle shaft 57, whereby the shaft 57 is rotated.

The handle shaft 57 has reference numerals 59a and 59b
4a to 62a and 62b are engraved at predetermined positions. Four pairs of guide bar support plates 63a, b to 66a, b each having a female screw meshing with the male screw near the upper end are attached, and the respective guide bars 51a, b to 54a, b are attached to the lower end thereof. ing. Bearings 67 are mounted at positions below the upper ends of the support plates 63a, b to 66a, b, respectively, and guide shafts 68 that are fitted and extend to the bearings 67 are supported at both ends by the frame 55. Here, the pair of screws 59a and 59b have opposite screw directions (the same applies to other screws). Therefore, when the handle 58 is operated, the paired guide bar support plates 63a and 63b (the same applies to the other) approach or move away from each other, and accordingly, the paired guide bars 51a and 51b (the other also apply) approach. Or go away. That is, there are packaging bags of different sizes, and when using packaging bags of different sizes, adjust the interval between the guide bars according to the size of the bag width, and measure the size of each packaging bag. It is intended to be adapted to. In the case of the present embodiment, when packaging bags of different dimensions are used, it is necessary to replace the packaging bag with a retainer body having a retainer made for each.

Although the cross-sectional shape of the body storage section 3 of each retainer 2 of the retainer body 1 used in the above example is shown as a circle, the present invention is not limited to this, and may be, for example, an elliptical or race-track type. What is necessary is just to have enough dimensions to accommodate the inflated torso. However, it is necessary that the packaging bag be in contact with the portion near the grooves 7 and 8 of the storage portion 3 or the connecting portion 9 described above. The angle θ described above is 9
The angle may be slightly smaller than 0 degree. However, it is desirable to stop at about 80 degrees. Further, for example, a material having a large friction coefficient, for example, rubber may be arranged in the connecting portion 9. Also, the narrower the width p of the grooves 7 and 8 is, the more effective the prevention of restoration of the packaging bag is, the size of the bag is preferably +3 mm or less, and the radius of curvature of the connecting portion is preferably in the range of 1 to 1.5 mm. These can be determined experimentally.

FIG. 7 is a perspective view showing another example of the retainer body. One of the features of each retainer 72 of the retainer body 71 is that the connecting portion between the body storing portion 73 and the grooves 74 and 75 is formed as follows. That is, the projections 76a, b, 77a, b are configured. As shown, the projections 76a and 76b and 77a and 77b, which are paired with each other, have their leading ends facing the inside of the trunk housing portion 73, and the spacing between the leading ends is the groove 7.
4 and 75 are narrowed. The distance between the tips may be determined in the same manner from the viewpoint described for the grooves 7 and 8 of the retainer 2 shown in FIG. The protrusion may be made of a flexible rubber having elasticity.

FIGS. 8 to 10 show still another embodiment of a retainer body 81. FIG. 8 is a plan view, FIG. 9 is a front view, and FIG.
Is a left side view. The feature of the retainer body 81 is that the body storage portions of the retainers 82a, 82b, 82c, and 82d are adjustable. The drawing shows a state in which the packaging bags 10 expanded in the respective retainers are held. Less than,
explain.

The retainer body 81 has, like the retainer body shown in FIG.
b, an elongated rectangular parallelepiped or rod-shaped retainer body 83 defined by left and right side faces 83c and d and upper and lower side faces 83e and f. The retainer body 83 is formed with four vertical holes 84a, b, c, and d having a rectangular cross section vertically penetrating therethrough at predetermined intervals in the longitudinal direction thereof, and further has a rectangular horizontal hole 85a communicating with the vertical hole 84. , B, c, and d are provided at positions closer to the upper surface 83e from the rear surface 83b.
Further, rectangular cutouts 86a, b, c, and d are formed on the front side surface 83a to a predetermined height from the lower side surface 83f, and communicate with the vertical holes 84a, b, c, and d.

At the rear side of the retainer main body 83, the horizontal holes 85a, b, c, and d are formed within the thickness in the front-rear direction.
5a, b, c, and d traverse the guide shaft 89 in the left-right direction.
Extends, and both ends thereof are rotatably supported by left and right walls 87a and 87b of the main body 83, and are formed in the middle thereof.
Extending through the intermediate walls 88a, b, c. A handle 90 is attached to the left end. The guide shaft 89 has lateral holes 85a, 85b,
A pair of screws 91a and 91b are engraved at positions located in c and d, respectively. The directions of the screws 91a and 91b are opposite to each other. And this screw 91
The left and right retainer halves 110a and 110b constituting the retainer 82 are attached to the portions a and b. That is, each of the retainer halves 110 a and 110 b has a main body 92 a and b located in the vertical hole 84 and a rear
Arms 93a, b each having female threads extending inward and engaging with the guide shaft screws 91a, 91b, respectively, and provided at the ends of the arms 93a, 93b, respectively. On the other hand, support portions 94a and 94b are provided so as to be slidable.

The main body portions 92a and 92b are provided with a retainer main body 83.
In the longitudinal direction, grooves 95a and 95b extending on the same line are formed penetrating in the vertical direction. The inner ends facing each other are open, and at the ends, the opposing inner surfaces of the grooves 95a and 95b are connected to the arc portions 97a and 97b, and 97c and 97d, respectively, which constitute the body storage portion 96. Make up. Although the detailed description of the shapes of the grooves 95a and 95b and the trunk housing portion 96, that is, the arc portions 97a, 97b, 97c, and 97d is omitted, the configuration described with reference to FIGS. it can. As is clear from the above description, by operating the handle 90, the left and right retainer halves 110a and 110b are moved closer to or farther from each other to change the cross-sectional shape of the body housing portion 96, and the width of the packaging bag is different. It is possible to correspond to.

Reference numerals 98 a, b, c, and d denote bottom support plates for receiving the bottom of the bag 10, and are integrated via connection portions 99 a, b, and c located on the front side of the retainer main body 83. At the front side of the retainer main body 83, the connecting portion 9
A pair of upper and lower guide shaft support plates 100a (b, c) at positions corresponding to substantially the center positions in the left-right direction of 9a, b, c, respectively
And 101a (b, c) are fixed to the retainer main body 83 and extend forward. And these support plates 100, 10
The upper and lower ends are supported by the guide shaft 102a,
b and c are extended, and the connecting portion 9 is
Guide holes 105a, b, and c provided in guide portions 104a, b, and c provided at upper end portions of the guide portion connecting portions 103a, b, and c extending upward from 9 are fitted. However,
The center guide shaft 102b is rotatably supported, and a screw 106 is formed between the upper and lower support plates 100b and 101b. In correspondence with this, a female screw is formed in the guide hole 105b of the guide 104b. ing. And guide shaft 1
The upper end of 04b protrudes above the upper support plate 100b, and the handle 107 is attached to the end. Therefore,
By operating the handle 107, the bottom support plate 98
a, b, c, d can be simultaneously moved up and down. That is, the heights of the body housing portion 96 and the grooves 95a, b can be adjusted, and it is possible to accommodate packaging bags having different height dimensions.

[0040]

As is apparent from the above description, according to the present invention, a retainer body having a simple structure for a free-standing packaging bag is provided, and speeding up of bag packaging can be achieved.

Each of the retainers is configured so that the expanded packaging bag can easily maintain the expanded state, and the filling and sealing of the contents are performed extremely appropriately to prevent the occurrence of defective products. You can do it.

When a configuration is adopted in which the shape of the body storing portion of the bag of each retainer is adjustable, it is possible to cope with various types of packaging bags having different sizes by simple adjustment, and the work of replacing the retainer can be performed. It becomes unnecessary.

In a bag-filling and packaging machine using these retainers, a plurality of devices used in each step, the number of which is equal to the number of the retainers, may be extended in the longitudinal direction of the retainer body, if necessary, in a direction perpendicular thereto. By arranging the adjacent devices in different rows in the longitudinal direction of the retainer body, sufficient space can be secured between each device, and cleaning, maintenance, etc. Easy to do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a retainer body and an opened self-standing packaging bag according to a first embodiment of the present invention.

FIG. 2 is a diagram of a retainer included in the retainer body of FIG. 1,
(A) is a plan view and (B) is a front view.

FIG. 3 is a configuration side view showing a schematic configuration of a bag packaging machine using a retainer.

FIG. 4 is a view showing some steps of the packaging machine of FIG. 3 (a).
Is a plan view, and (b) is a side view.

5 is a view showing a bag mouth tensioning and temporary sealing device used in the bag filling and packaging machine of FIG. 3, wherein (a) is a front view and (b) is a side view.

FIG. 6 is a side view showing a configuration of a main part of the temporary sealing device.

FIG. 7 is a perspective view of a retainer body according to another embodiment.

FIG. 8 is a plan view of a retainer body according to still another embodiment.

FIG. 9 is a front view of the retainer body of FIG.

FIG. 10 is a side view of the retainer body of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Self-standing packaging bag 10a Body part 10b Side edge part 1 Retainer body 2 Retainer 3 Body storage part 4 Body surrounding part 5 Bottom part 7, 8 Groove 9 Connecting part 11 Bag packing machine 15 Bag supply device 16 Bag opening device 17 Solid matter Dosing device 18 Liquid filling device 21 Temporary sealing device 45 Primary sealing device 46 Secondary sealing device 47 Cooling device 71 Retainer body 76a, b Projection 81 Retainer body 82 Retainer 89 Guide shaft 110a, b Retainer half 92a, b Main body 93a, b arm 94a, b support part 95a, b groove 96 trunk storage part 97a, b, c, d arc part 98a, b, c, d bottom support plate 102a, b, c guide shaft

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E018 AA04 AB06 AB08 BA03 BA07 BA08 CA03 CA06 EA04 3E030 AA04 BA01 BB02 BC03 CA02 CA07 CB01 DA06 DA08 DA10 EA01 EB03 GA01 GA05 3E056 AA05 BA01 BA03 BA04 BA09 CA01 CA08 DA01 EA01 EA01 FH20

Claims (8)

[Claims] 1. A retainer body comprising a plurality of retainers for holding a self-standing packaging bag in a standing state, wherein each retainer is provided with an inflated body of the packaging bag when the packaging bag is expanded. Storing a part, a trunk surrounding part that at least partially surrounds the trunk part, and a bottom part that receives a bottom part of the packaging bag, a trunk storage part, and a left-right symmetric position of the trunk storage part, Sealed side edges on both sides of the body portion of the packaging bag, one end of which is open and communicates with the inside of the body storage portion and the other end is formed to extend away from each other in left and right opposite directions, are also closed. The body portion of the packaging bag in a bag state is provided with a pair of grooves at least partially insertable, and the dimensions of the body storage portion and the groove are set at the upper end portion of the packaging bag at which the upper end portions are stored. Set to be lower and the groove on each retainer is the same A retainer, wherein each retainer is arranged to extend in a direction. 2. The retainer body according to claim 1, wherein
Opposite side surfaces of each of the grooves are connected to the inner surface of the body surrounding portion at an inner end thereof to form a connecting portion, and at least the connecting portion has a portion in the body storage portion of the packaging bag in an open state. A retainer body is provided with a structure for preventing movement into the groove. 3. The retainer body according to claim 1, wherein the shape of the trunk housing portion is adjustable. 4. The retainer body according to claim 3, wherein a cross-sectional shape of the trunk housing portion is adjustable. 5. The retainer body according to claim 3, wherein the height of the trunk housing portion is adjustable. 6. The retainer body according to claim 4, wherein
Each retainer is composed of two parts including one groove and a part of the trunk storage part connected to each groove, and each part is movable with respect to each other in the extending direction of the groove. A retainer body. 7. A plurality of retainer bodies according to any one of claims 1 to 6, which are arranged at predetermined intervals before and after in a direction substantially orthogonal to a longitudinal direction of the retainer body. While sequentially moving in the orthogonal direction,
A bag-filling and packaging machine characterized in that contents are packed in a packaging bag held by each of the retainers and packaged. 8. The bag-filling and packaging machine according to claim 7, wherein each device for performing bag-packing and sealing along the direction in which the retainer body moves is the same as the retainer included in the one retainer body. A plurality of the plurality of devices are provided side by side in the longitudinal direction of the retainer body, and at least some of the devices extend in the longitudinal direction of the retainer body and are adjacent to each other in a direction orthogonal to the longitudinal direction of the retainer body. Bag-filling and packaging machine characterized in that the devices arranged in a row and the longitudinally adjacent devices are arranged in different rows.