JP7160269B2 - packing bag stocker - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies 1) Exhibition name: FOOMA JAPAN 2018 International Food Industry Exhibition 2) Date: June 12-15, 2018 3) Sponsor: Japan Food Machinery Manufacturers Association 4 ) Venue: Tokyo Big Sight

The present invention relates to a packaging bag stocker that supplies packaging bags to a rotary packaging machine or the like using, for example, a multi-axis robot type handling robot device.

A general rotary packaging machine is equipped with a plurality of pairs of clamp arms on the outer peripheral edge of a rotating rotor, and a packaging bag sucked by a suction means from a packaging bag supply device is delivered to the pair of clamp arms by a delivery device, and rotated. After the bag is filled with the items to be packed while being transported, the opening of the bag is sealed and the bag is carried out of the machine to complete the packaging.

FIG. 17 is a side view showing an example of the packaging bag supply device of Patent Document 1. FIG. This packaging bag supply device 1 includes a round belt conveyor 3 on which packaging bags P arranged in a row are placed so as to be tilted rearward in the feeding direction, a driving roller 4 for driving the round belt conveyor 3, and the round belt conveyor. 3, and a stopper 6 installed in front of the round belt conveyor 3 in the feeding direction.

The packaging bag supply device 1 presses the group of packaging bags P placed on the round belt conveyor 3 from above with the feeding belt 7 of the feeding device 5 and pinches them from above and below with the belts 3 and 7 . , the packaging bag P is conveyed until it comes into contact with the stopper 6 by the rotation of the belts 3 and 7 .

The suction means 8 has a lowered position for sucking the uppermost packaging bag P placed on the packaging bag supply device 1 and a raised position for transferring the sucked packaging bag P to the transfer device (not shown). , moves up and down. At the position where the adsorption means 8 is lifted, the delivery device delivers the packaging bag P to a pair of clamp arms of the rotary packaging machine.

JP 2014-8972 A

In the conventional packaging bag supply device 1, when the number of packaging bags P placed on the round belt conveyor 3 decreases, the operator places new packaging bags P on the round belt conveyor 3 to flatten the bag bundle. I am working on getting it to work. However, the conventional bag feeder 1 has a limited number of bags that can be placed on the round belt conveyor 3 . For this reason, the operator must constantly supply the packaging bag P to the packaging bag supply device 1, which poses a problem that the operator has a heavy workload.

In order to solve these problems, a packaging bag supply system that can automatically supply packaging bags to the packaging bag supply device using a handling robot device is conceivable. If the number is small, the packaging bag stocker must be replaced or the bag supply operation must be performed frequently, and reduction of the burden on the operator, automation of the packaging operation, and labor saving cannot be expected. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a packaging bag stocker for a packaging bag supply system capable of stocking a large amount of packaging bags.

The packaging bag stocker of the present invention is a packaging bag stocker for supplying packaging bags to a packaging machine that is carrying out a packaging operation, and is equipped with multistage shelf equipment for stocking a large amount of packaging bags on a machining box. The packaging bag stockers include a rotating column that rotates about the axis of the rotating shaft, and each of the packaging bag stockers independently extending radially outward from the side surface of the rotating column and provided in multiple stages on the side surface of the rotating column. A shelf for placing a bag bundle of bags, and a rotation drive mechanism for rotating the rotating column provided with the multi-stage shelf,
The shelf is formed in the shape of a channel material having side plates on both sides of the substrate, insertion holes are formed in the rear end of each substrate, and one elongated regulation plate is inserted into the plurality of insertion holes. In addition, the regulation plate is fixed so as to be movable in the longitudinal direction of the substrate according to the size of the packaging bag in the length direction,
The substrate of the channel-shaped shelf is divided into two at the center in the longitudinal direction, the shelf is divided into two parts, and each part in a vertical row is connected by a connecting piece, and each part in the entire vertical row is integrated. It is characterized in that the shelf can be slid laterally to match the width dimension of the packaging bag .

In this packaging bag stocker, a bundle of packaging bags is stored in each of the multiple shelves, so the packaging bag stocker as a whole can store a very large number of packaging bags, and even when the size of the packaging bag is changed, But the shelf can be adapted to the dimensions of the packaging bag .

In addition, when the last rack becomes empty, the rack equipment rotates intermittently by the rotary drive mechanism, and the rack in the new row faces the delivery device such as the handling robot device, so that the bundle of packaging bags can be continuously fed. can supply.

With the packaging bag stocker of the present invention, it is possible to stock a large amount of packaging bags, so that it is possible to supply packaging bags to the packaging machine for a long period of time. In addition, it is possible to change the size of the packaging bag.

FIG. 2 is a plan view of the packaging bag stocker of the present invention in use. Side view of the handling robot device and packaging bag stocker of the present invention A plan view of the packaging bag stocker of the present invention Front view of the packaging bag stocker of the present invention The right side view of the packaging bag stocker of the present invention. Fig. 2 is a left side view of the packaging bag stocker of the present invention; A plan view of the shelf of the packaging bag stocker of the present invention Partially enlarged view of the shelf of the packaging bag stocker of the present invention Partially enlarged view of the shelf of the packaging bag stocker of the present invention Partial enlarged view of FIG. A plan view of another embodiment of the packaging bag stocker of the present invention Front view of another embodiment of the packaging bag stocker of the present invention A plan view of still another embodiment of the packaging bag stocker of the present invention. The left side view of still another embodiment of the packaging bag stocker of the present invention. A partially enlarged front view of the other embodiment provided with a static electricity removal mechanism. Partially enlarged right side view of the other embodiment provided with an air nozzle Side view of a conventional packaging bag supply device

FIG. 1 is a plan view of a packaging bag supply system equipped with a rotary packaging machine and a packaging bag stocker of the present invention, and FIG. 2 is a side view of the packaging bag supply system. First, a rotary packaging machine and a packaging bag supply system will be briefly described with reference to FIGS. 1, 2 and other drawings. The rotary packaging machine 10 has a pair of clamp arms 12 supported on the periphery of a circular rotor 11. Each clamp arm 12 has a clamp 13 for clamping a packaging bag P at its tip. to do the packaging work. In the rotary packaging machine 10 of FIG. 1, sections for packaging work are allocated in the circumferential direction of the rotor 11, and in the rotary packaging machine 10 of this embodiment, the 10 sections are evenly allocated. In addition, the packaging bag stocker 30 of the present invention is not limited to the rotary packaging machine 10 .

Numbers (1) written on the outer circumference of the rotor 11 are the bag feeding section, (2) the printing section, (3) the bag opening section, (4) the filling section, (5) the tapping section, and (6) (7) is a degassing section; (8) is a sealing section; (9) is a cooling section; and (10) is an unloading section.

The packaging bag supply system comprises a packaging bag supply device 1 , a handling robot device 20 and a packaging bag stocker 30 . First, the packaging bag supply device 1 and the handling robot device 20 will be briefly described. The packaging bag supply device 1 is a device that supplies packaging bags P to a rotary packaging machine 10, and has basically the same configuration as the conventional one described in the background art. That is, the packaging bag supply device 1 includes a round belt conveyor 3 on which the packaging bags P arranged in a row so as to tilt backward in the feeding direction are placed, a driving roller 4 for driving the round belt conveyor 3, and the round belt conveyor 3. A delivery device 5 installed above the belt conveyor 3 and a stopper 6 installed in front of the round belt conveyor 3 in the feeding direction are provided.

The operation of the packaging bag supply device 1 is also such that the group of packaging bags P arranged on the round belt conveyor 3 is pressed from above by the delivery belt 7 and sandwiched between the belts 3 and 7 from above and below. By the rotation of both the belts 3 and 7, the packaging bag P is conveyed until it comes into contact with the stopper 6, and the packaging bag P at the tip of the round belt conveyor 3 is received by the clamp 13 of the rotary packaging machine 10 by the delivery device. Passed.

The handling robot device 20 is a device that takes out the bag bundle P1 of the packaging bags P from the packaging bag stocker 30 and delivers it to the packaging bag supply device 1 . The handling robot device 20 includes a multi-joint arm mechanism 21 . The handling robot device 20 shown in FIGS. 1 and 2 uses a known 6-axis robot. An arm mechanism 21 is provided on a base portion 23 , and a tool portion 24 is provided at the tip of the arm mechanism 21 .

A tool portion 24 at the tip of the arm mechanism 21 has a finger portion 25 that grips the bundle of bags P1 on the shelf 32 of the packaging bag stocker 30 and places the bag bundle P1 on the upstream side of the round belt conveyor 3 by the arm mechanism 21; A vibrating part that vibrates the bundle of bags P1 placed on the upstream side of the belt conveyor 3 from above, smoothing it to the downstream side of the round belt conveyor 3, and slips it into the rear row part of the bag group that already exists on the round belt conveyor 3. 26.

Next, the packaging bag stocker 30 of the present invention will be explained. The packaging bag stocker 30 is installed within the turning range of the arm mechanism 21 of the handling robot device 20 as shown in FIG. to stock. The packaging bag stocker 30 comprises a rotating column 31 that rotates intermittently or normally about the axis of the rotating shaft, and a multi-level shelf 32 provided on the rotating column 31. Shelf equipment rotates the shelving equipment. and a rotation drive mechanism 33 .

The rotating column 31 is a rectangular column made of stainless steel or the like, and the width of each surface of this column is sufficient to attach the rear end surface 42 of the shelf 32. The height is determined according to the number of stages on which the shelf 32 is set. Specifically, it is determined according to the required number of packaging bags P for packaging work. The lower end of the rotating column 31 is attached to the rotating shaft of the drive transmission mechanism 34 of the rotation drive mechanism 33, and the rotational force of the drive motor 35 arranged horizontally is transmitted to the rotating shaft via the drive transmission mechanism 34. and the rotating column 31 and shelf 32 rotate. The upper end of the rotating column 31 is supported by the top plate 36 of the packaging bag stocker 30 via a support shaft 37 so that the rotation of the rotating column 30 does not fluctuate.

A shelf 32 extends radially outward (horizontally) from the side surface of the rotating column 31, and extends in the axial direction (vertical direction) with respect to the rotating column 31 in multiple stages (10 stages in FIGS. 4 to 6). is provided. That is, in this embodiment, the multistage shelves 32 are provided along each of the four surfaces of the rotating column 31 at an angle of 90 degrees, and have a cross shape in plan view as shown in FIG. .

As shown in FIG. 8, each shelf 32 provided in multiple stages is shaped like a channel material having a substrate 38 on which a bundle P1 of packaging bags P is placed and side plates 39 erected on both sides of the substrate 38. As shown in FIG. 7, a notch 40 for taking out is formed at the leading end of the substrate 38, and the tip piece 41 of the side plate 39 is bent outward so that the bag bundle P1 can be easily inserted.

A rear end surface 42 of the shelf 32 is fixed to the side surface of the rotating column 31 with a bolt 43, and the entire shelf 32 is held horizontally. Furthermore, as shown in FIG. 7, a large rectangular insertion hole 44 is formed in the rear end of the substrate 38 of the shelf 32, and the vertical row of the shelves 32 (10 stages in FIGS. 4 to 6) is provided. A single long regulation plate 45 is inserted through the insertion hole 44 and is movably fixed. This regulation plate 45 is used when changing the size of the packaging bag P as described below.

The lower end of the regulating plate 45 is supported by a lower plate 46 attached to the lower portion of the rotating column 31 , and the upper portion is supported by an upper plate 47 of the rotating column 31 . Stop on the upper end surface to fix the regulation plate 45 . The regulating plate 45 and the side plate 39 regulate the shape of the bundle of bags P1 placed on the shelf 32 so as not to collapse. When changing the size of the packaging bag P in the length direction, the handle screw 48 is turned to remove the upper plate 47, and the regulation plate 45 is moved to the front or back of the shelf 32 (front and back direction of the substrate 38) for packaging. After adjusting the size of the bag P, the regulation plate 45 is supported from above by an upper plate 47, and the upper plate 47 is tightened to the rotating column 31 by a handle screw 48 to fix the regulation plate 45.例文帳に追加FIG. 8(A) shows the upper end of the regulating plate 45. It is possible to move between the regulating plate 45 indicated by the imaginary line and the regulating plate 45 indicated by the solid line, and the bag size can be changed by this moving distance. can.

The shelf 32 in FIGS. 8A and 8B does not have a structure in which the dimension in the width direction can be changed. As described above, the shelf 32 may not be able to change the dimension in the width direction, but it is preferable that the dimension can be changed. FIG. 9 illustrates another example of a structure whose width dimension can be changed. Support plates 49 corresponding to the number of shelves 32 are horizontally fixed to the rotating column 31 to support the channel-like shelves 32 . The substrate 38 of the shelf 32 is cut in the center in the longitudinal direction and divided into two parts, and the shelf 32 is divided into two parts 32a. A long hole 50 is formed in the support plate 49 , and a pin 51 projecting downward from the bottom of the substrate 38 is fitted into the long hole 50 . It is configured to be movable in the width direction.

A long hole 52 is also formed in the rear end surface 42 of each part 32 a of the shelf 32 , and a pin 53 projecting from the rotary column 31 is fitted in the long hole 52 . It is designed to move along. In addition, each part 32a in a row in the vertical direction is connected by a connecting piece 32b, and the parts 32a in the whole row in the vertical direction can be slid together in the horizontal direction (width direction of the substrate 38), thereby facilitating the width changing work. ing. After sliding, each part 32a as a whole is integrally fixed by one or two fixing means (not shown). With this configuration, each portion 32a of each shelf 32 can be slid together in the left-right direction in FIG.

10 is a partially enlarged view of FIG. 4. FIG. As shown in FIG. 10, a package placed on the bottom shelf 32 is irradiated with a light beam R such as an infrared ray from below the base plate 38 of the shelf 32 upwards. Detecting means for detecting the presence or absence of the bag P is provided. Specifically, an infrared light projector 55 is mounted on the machining box 54 , and a through hole 56 for transmitting light from the light projector 55 is formed in the substrate 38 of the lowermost shelf 32 . A reflecting plate 57 for reflecting the light beam R transmitted through the through hole 56 is attached to the rear surface of the substrate 38 of the shelf 32 one step above. The presence or absence of the packaging bag P on the bottom shelf 32 is detected. Incidentally, the detecting means for detecting the packaging bag P is not limited to an infrared sensor or an optical sensor, and may be a proximity sensor or a limit switch.

In FIG. 3, reference numeral 58 indicates a safety cover that covers the packaging bag stocker 30. As shown in FIG. The safety cover 58 is installed outside the turning range of the handling robot device 20 on the outer periphery of the machining box 54 . An opening/closing door 59 of the safety cover 58 is provided on the surface opposite to the surface from which the handling robot device 20 takes out the bag bundle P1, and the opening/closing door 59 is attached with a handle 59a. By opening the opening/closing door 59, the bundle of bags P1 can be supplied to the shelf 32 as required. The opening/closing door 59 is provided with a safety device 60 (see FIG. 6), and the rotation of the rotating column 31 and the operation of the handling robot device 20 are stopped while the opening/closing door 59 is open.

4 to 6, reference numeral 61 denotes a caster for moving the packaging bag stocker 30 from the work area to the outside of the work area by the handling robot device 20, and vice versa, from the outside to the work area. . Therefore, it becomes possible to replace the packaging bag stocker 30 with a new packaging bag stocker 30 as necessary to supply the packaging bags P. Reference numeral 62 in the drawing denotes an adjuster, which can fix the packaging bag stocker 30 for safety.

Next, the action of the packaging bag stocker 30 in the above embodiment will be described. A packaging bag stocker 30 is installed within a turning range of an arm mechanism 21 of a handling robot device 20, and multistage shelves 32 of the packaging bag stocker 30 are filled with bag bundles P1 such as flat bags and gusset bags. In the case of the packaging bag stocker 30 shown in FIG. 7, the multistage shelves 32 are provided in four rows in the vertical direction around the rotating column 31, and since each row of shelves 32 has ten stages, Assuming that one bundle of bags P1 is 100, a total of 4000 packaging bags P can be set with 100 sheets.times.10 stages.times.4 rows.

When all the shelves 32 are filled with the bag bundles P1, the opening/closing door 59 is closed and the start switch 63 is pressed to start the packaging operation. The finger portion 25 at the tip of the arm mechanism 21 of the handling robot device 20 grips the bundle of bags P1 on the uppermost shelf 32 and places it on the upstream side of the round belt conveyor 3 by the arm mechanism 21 . Since the notch portion 40 is formed at the tip of each shelf 32, the finger portion 25 of the handling robot device 20 can easily grasp the bundle of bags P1. The vibrating portion 26 vibrates the bag bundle P1 placed on the upstream side of the round belt conveyor 3 of the packaging bag supply device 1 from above to flatten it, so that the bag bundle P1 slips into the back row of the bag group on the round belt conveyor 3. Let

In this way, the bag bundle P1 is picked up from the uppermost shelf 32 to the lowermost shelf 32 and supplied to the round belt conveyor 3. When the bag bundle P1 is picked up from the lowermost shelf 32, As shown in FIG. 10, the light from the light projector 55, which had been blocked by the bundle of bags P1 until then, passes through the through hole 56 and reaches the reflector 57 provided on the rear surface of the second shelf 32 from the bottom. , is reflected and is incident on the light projector 55, and the control device recognizes that the bundle of bags P1 on the bottom shelf 32 has disappeared.

As described above, when the control device determines that the bundle of bags P1 has disappeared from the entire shelf 32 in one vertical row, a control signal from the control device causes the rotation drive mechanism 33 to rotate the shelf equipment by 90 degrees, and a new row of shelves is displayed. 32 faces the handling robot device 20 . In this manner, the bag bundle P1 is sequentially supplied to the packaging bag supply device 1 and the rotary packaging machine 10. As shown in FIG. If it becomes necessary to supply the bag bundle P1 halfway through, opening the opening/closing door 59 provided on the safety cover 58 activates the safety device 60 to activate the rotation drive mechanism of the handling robot device 20 and the packaging bag stocker 30. 33 stops, new bag bundles P1 can be supplied to each shelf 32 at any time. Meanwhile, the packaging bag supplying device 1 and the rotary packaging machine 10 continue the packaging operation.

As an example of the packaging bag stocker 30, a case in which 10 shelves 32 are provided in four rows at 90-degree intervals around a rotating column 31 in the shape of a square prism is shown, but the present invention is limited to such a configuration. Not even. For example, as shown in FIG. 11, a hexagonal rotating column 31 may be provided with shelves 32 in six rows, or an octagonal rotating column 31 may be provided with shelves 32 in eight rows. The number is not limited. Needless to say, the setting of the rotation angle of the rotation column 31 of this embodiment is changed according to the row of each shelf 32 . Alternatively, multiple shelves may be provided spirally around the circumference of a circular rotating column. The configuration of the shelf 32 of the packaging bag stocker 30 in FIG. 11 is the same as the configuration of the shelf 32 of the above embodiment. The same configurations are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 12 shows yet another self-propelled packaging bag stocker 30 embodiment. In the above embodiment, casters 61 are attached to the four corners of the bottom of the machining box 54 so that the operator can move the packaging bag stocker 30. However, the packaging bag stocker 30 shown in FIG. The bag stocker 30 is constructed so as to be self-propelled to a predetermined position by autopilot. That is, in the embodiment of FIG. 12, a steering wheel 64 is provided in front of the bottom of the machining box 54, and a driving wheel 65 is provided in the rear.

A front steering wheel 64 is a wheel that changes the traveling direction of the packaging bag stocker 30 . A servomotor is housed in a box 66 above the steering wheel 64, and the steering wheel 64 can be steered according to instructions from the control device to automatically move the packaging bag stocker 30 to a predetermined location. there is The rear drive wheel 65 is a wheel that applies a driving force to the packaging bag stocker 30 and is rotated by a driving mechanism 67 that is a combination of a gear and a motor to move the packaging bag stocker 30 .

In this embodiment, a plurality of packaging bag stockers 30 are prepared in which shelves 32 are filled with bag bundles P1. After giving a command to the device to move the empty packaging bag stocker 30 to the standby position, the full packaging bag stocker 30 waiting at the standby position is moved to the working position shown in FIG. replace with By preparing a plurality of packaging bag stockers 30 in this manner, automatic packaging work can be performed day and night.

Next, another embodiment equipped with an air blow device 70 for adjusting the condition of the bags P placed on the shelf 32 will be described. FIG. 13 is a plan view showing the packaging bag stocker 30 of the present invention equipped with the air blow device 70, and FIG. 14 is a left side view. Generally, the plastic bag P may be charged with static electricity or have a wet surface. When the bags P are statically charged or in a wet state, when the bags P of the packaging bag supply device 1 are adsorbed by the adsorption means 8, the bags P become difficult to separate from each other, and an adsorption error by the adsorption means 8 occurs. There is Furthermore, the bag P may curl or warp naturally, and even when the bag P curls or warps, there is a possibility that an adsorption error may occur. In this other embodiment, in order to solve the above problems, an air blow device 70 is provided for adjusting the condition of the bag P suitable for adsorption. The air blow device 70 has a mechanism for removing static electricity, a mechanism for loosening the bag bundle P1 of the bags P, a mechanism for removing distortion such as curling or warping of the bags, or a combination of these mechanisms.

Reference numeral 71 in FIGS. 13 to 15 denotes a static electricity removing mechanism for removing static electricity. The static eliminator 71 is a static eliminator (ionizer) 72 that utilizes corona discharge and is of fan type. In corona discharge, a high voltage is applied to generate corona discharge at the tip of the electrode needle, and ions are diffused by a fan. The static remover 71 is not limited to one using corona discharge, and may be one using ionizing radiation. Furthermore, in addition to the fan type, a nozzle type or a gun type may be used.

In the static electricity removal mechanism 71 , a plurality of fan-type static eliminators 72 are attached to a support 73 in the vertical direction of the outer periphery of the shelf 32 . In the case of ten shelves 32 as in the above embodiment, ten static eliminators 72 are attached to the support 73 corresponding to the shelves 32 in the vertical direction. The static eliminator 72 exerts its static elimination effect by adjusting the installation position, the installation angle, the air volume of the fan, and the like. In the above-described embodiment, ten static eliminators 72 are installed corresponding to the ten shelves 32, but the method of installing the static eliminators 72 is not limited to such a configuration. Alternatively, one or several static eliminators 72 are installed in series inside the lower end, and air containing ions is jetted from a nozzle (not shown) provided in the direction of the shelf 32 from the cylindrical support. good.

Reference numeral 74 in FIG. 16 denotes an air nozzle for loosening the bag bundle P1 of the bags P and removing distortion such as curling and warping of the bags. By injecting compressed air from the air nozzle 74 and blowing air between the bags P, the bags P that are difficult to separate due to static electricity or the like can be loosened. Furthermore, by jetting hot air from the air nozzle 74 to heat the bag P, the curled or warped bag P can be corrected.

The air nozzle 74 has a narrow tip end side and is arranged to face one end of the bag bundle P1. Ten air nozzles 74 are attached at regular intervals in the vertical direction of a hollow duct 75 erected on the outer periphery of the shelf 32 . Although the air nozzle 74 is fixed to the hollow duct 75, the nozzle may be movable vertically and horizontally. The ventilation duct 75 communicates with an air compressor 76 inside the machining box 54 . The hollow duct 75 and the air compressor 76 communicate with each other through a ventilation pipe 77 , and a heater 78 is provided in the middle of the ventilation pipe 77 . The heater 78 is energized when hot air is jetted from the air nozzle 74 to remove distortion such as curling or warping of the bag P, and heats the air flowing through the ventilation pipe 77 . In the case of loosening only the bag bundle P1, there is no need to heat the air, so the heater 78 is not energized and only the air is jetted.

Next, the state of use of the configuration will be described. Before carrying out the packaging operation by the rotary packaging machine 10, first, the multistage racks of the packaging bag stocker 30 are replenished with all the bag bundles P1. After that, the drive motor 35 of the rotary drive mechanism 33 is turned on to rotate the shelf 32, and at the same time, the static eliminator 72 of the static eliminator 71 is energized to generate ions, which are diffused by the fan to form the ions in the bag bundle P1. spray. By blowing air charged with ions to the bundle of bags P1, static electricity charged on the bundle of bags P1 is removed. If static electricity is removed only once, the shelf 32 is rotated several times to remove the static electricity from the bundle of bags P1.

At the same time that the static electricity removal mechanism 71 is activated as described above, air is also injected from the air nozzle 74 to the bag bundle P1. When loosening the bag P that is difficult to separate due to static electricity or the like, the heater is not energized and normal air is injected between the bags P to separate the bag P. When the bag P is distorted such as curling or warping, the heater 78 is energized to heat the air, and the heated air is jetted to the bag P. Curling and distortion of the bag P can be corrected by heating the bag P with heated air. If the injection of air or heated air only once is insufficient, the shelf 32 is rotated a plurality of times.
In the state of use described above, static elimination and correction work for the bags P were performed before the packaging work, but they may be performed for each shelf 32 at the same time as the packaging work. That is, while the shelf 32 is intermittently stopped, the above-described static elimination work and correction work for the bags P may be performed intermittently.

INDUSTRIAL APPLICABILITY According to the present invention, in a packaging bag supply system that continuously supplies packaging bags to a rotary packaging machine, a large amount of packaging bags can be stocked to automate packaging work and save labor.

30 Packaging bag stocker 31 Rotation column 32 Shelf 33 Rotation drive mechanism 34 Drive transmission mechanism 35 Drive motor 38 Substrate 39 Side plate 44 Insertion hole 45 Regulating plate 54 Machining box 55 Light projector 56 Through hole 57 Reflector 64 Steering wheel 65 Drive wheel 67 Propulsion mechanism 70 Air blow device 71 Static electricity removal mechanism 72 Static eliminator 74 Air nozzle 76 Air compressor 77 Vent pipe 78 Heater

Claims (4)

A packaging bag stocker provided with multistage shelf equipment for stocking a large number of packaging bags on a machining box and for supplying packaging bags to a packaging machine that is carrying out packaging work, wherein the packaging bag stocker is mounted on a rotary shaft. A rotating column that rotates about an axis, and a stack of packaging bags that extend independently from the side surface of the rotating column in the radially outer direction and are provided in multiple stages on the side surface of the rotating column for placing the bundle of packaging bags thereon. comprising a shelf and a rotation drive mechanism for rotating the rotating column having the multistage shelf;
The shelf is formed in the shape of a channel material having side plates on both sides of the substrate, insertion holes are formed in the rear end of each substrate, and one elongated regulation plate is inserted into the plurality of insertion holes. In addition, the regulation plate is fixed so as to be movable in the longitudinal direction of the substrate according to the size of the packaging bag in the length direction,
The substrate of the channel-shaped shelf is divided into two at the center in the longitudinal direction, the shelf is divided into two parts, and each part in a vertical row is connected by a connecting piece, and each part in the entire vertical row is integrated. It is possible to slide laterally to fit the shelf to the width dimension of the packaging bag,
A packaging bag stocker characterized by: 2. The packaging bag stocker according to claim 1 , further comprising detecting means for detecting the presence or absence of a packaging bag placed on the lowermost shelf. The machining box is equipped with a steering wheel that controls the traveling direction of the packaging bag stocker and a driving wheel that provides a driving force to the packaging bag stocker. 2. The packaging bag stocker according to claim 1, wherein the packaging bag stocker is self- propelling . An air blow device for adjusting the condition of the bundle of bags stacked on the shelf and for blowing air is provided on the outer periphery of the shelf,
The air blow device is equipped with a mechanism that ejects ions to remove static electricity from the bags, a mechanism that blows air between the bags to loosen the bag bundle, or a mechanism that combines these . The packaging bag stocker according to claim 1.

Images