JP2011016541A - Packaging bag counting and stacking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag counting and stacking apparatus having space saved.SOLUTION: The packaging bag counting and stacking apparatus 20 is added to a packaging machine 10 for simultaneously manufacturing stick-type packaging bags p in a plurality of rows, and intermittently feeding them. The packaging bag counting and stacking apparatus includes a lower storage chamber 43 which has an openable/closable bottom to store the packaging bags p fed from the packaging machine 10 corresponding to each row, a movable bottom plate 55 which opens bottoms in an arbitrary number of the lower storage chamber 43 to drop the packaging bags p onto a receiving plate 25, and a pusher 57 which pushes the packaging bags p received by the receiving plate 25 to drop them into a stacking part 23.

Description

  The present invention relates to a counting and accumulating device for packaging bags equipped in a filling and packaging machine.

  A stick-type packaging bag is manufactured by a vertical multi-row automatic filling and packaging machine (see Patent Document 1). In this wrapping machine, a raw fabric wrapping film is cut by a slitter by a predetermined width, each cut wrapping film is wound in the width direction, and a cylindrical body is formed by applying a vertical seal to the overlapping end. After a horizontal seal is applied at a predetermined position, a semi-wrapping bag is formed by filling the contents of powder, granules, etc., and the semi-wrapping bag is sent out one cycle at a time, and then a stick type is applied. The packaging bag is formed, and the transverse seal portion is cut to produce one packaging bag.

  Here, the following is known as an example of a counting and accumulating device for stick-type packaging bags manufactured by this type of vertical multi-row automatic filling and packaging machine. This is done by sliding the packaging bags manufactured in each column along the chute and receiving them once by the double-spread type bottom plate provided in the storage chamber, and then opening the bottom plate and using a finger conveyor arranged below it. While receiving, it conveys one horizontal row. The transport destination is equipped with a star wheel that is intermittently rotated with a plurality of partitioned receiving portions, and the number of packaging bags dropped at the transport destination is counted by a transmission photoelectric sensor, At that point, the star wheel is rotated and separated.

JP 2006-27683 A

In the above conventional counting and accumulating apparatus, the number of packages is counted by the transmission type photoelectric sensor while the packaging bags are sequentially dropped at the transport destination, so that the packaging bags for the horizontal row received from the storage chamber are kept to some extent. There is a problem in that it is necessary to transport it by a conveyor such as a finger conveyor to the position where the photoelectric sensor is provided.
The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a packaging and counting apparatus for packaging bags that realizes space saving.

  The present invention is a packaging bag counting and accumulating apparatus attached to a packaging machine that simultaneously manufactures a plurality of rows of stick-type packaging bags and supplies them intermittently, and has a bottom that can be opened and closed. A storage chamber in the same row that stores the packaging bags supplied from each row, a bottom opening / closing mechanism that opens any number of bottom portions of the storage chamber and drops the packaging bags to the receiving portion, and the receiving portion. It is characterized in that a pusher that presses the received packaging bag and drops it into the stacking part is provided.

According to the above configuration, each row of stick-type packaging bags manufactured simultaneously by the packaging machine is individually placed in the corresponding storage chamber, and then the bottom of the arbitrary number of storage chambers is opened to open the required number of packages. The bag is dropped on the receiving part, and the packaging bag received by the receiving part is pressed by the pusher and accumulated in the accumulating part.
Counting can be performed in the process of dropping the packaging bag from the storage chamber, and the necessary number of stacks can be performed. In other words, the counting unit and the stacking unit can be aggregated and arranged in the space below the storage chamber. Compared to the conventional device, where it is essential to arrange the conveyor toward the counting unit located at a position away from the storage chamber, a significant space saving can be realized, and the manufacturing cost can also be reduced. Can do.

The following configuration may also be used.
(1) While a bottom plate that covers the bottom of each storage chamber is provided, a drive member that reciprocates the bottom plate along the alignment direction of the storage chamber is provided, and by changing the movement stroke of the bottom plate The number of openings at each bottom of the storage chamber is changed. Compared to individually opening and closing the bottom of the storage chamber using an air cylinder or the like, it is possible to reduce the number of components and further save space.
(2) The bottom plate also serves as the pusher. The packaging bags are accumulated in the accumulating portion by using the operation of moving the bottom plate back to the original position. Further simplification of the structure is achieved.

(3) The storage chambers are divided into two sets each having a predetermined number in the arrangement direction, and the bottom plate and the driving member are provided for each set of the storage chambers. The opening / closing operation time of the bottom plate can be shortened.
(4) A shutter that can be opened and closed is provided at an intermediate position in the depth direction of the storage chamber. When the shutter is closed, the packaging bag supplied from the packaging machine is temporarily received, and the packaging bag is then opened to open the bottom of the storage chamber. It is supposed to be dropped. The supplied packaging bag is received in a horizontal posture by the shutter, and when the shutter is opened, the horizontal posture is maintained and dropped to the bottom side of the storage chamber. The packaging bag can be accommodated in the accommodation chamber in a normal posture.

  (5) The shutter has a shape in which a plurality of openings aligned with the accommodation chamber are arranged at the same pitch as the arrangement pitch of the accommodation chamber with respect to the main body plate that penetrates the accommodation chambers along the arrangement direction. And a shutter driving member for reciprocating the shutter between an open position where each opening is aligned with a corresponding storage chamber and a closed position where each opening is retracted to the side of the corresponding storage chamber. Is provided. With a simple structure, the operation of accommodating the packaging bag in a normal posture with respect to each accommodation chamber can be performed all at once.

  According to the present invention, it is possible to realize space saving in providing the counting and accumulating device.

1 is a schematic side view showing a counting and accumulating apparatus and a packaging machine according to an embodiment of the present invention. Partially cutaway front view showing the vicinity of the arrangement part of the counting and accumulating device The perspective view which shows the manufacturing process of a packaging bag typically Side cross section of counting section Cross section viewed from the front Plan view VII-VII line sectional view of FIG. Sectional view showing the operation up to the middle of the counting process of the first cycle Sectional view showing the operations up to the end of the counting process and integration process in the first cycle Sectional drawing which shows operation | movement until the integration process of the 1st cycle is completed and the counting process of the 2nd cycle starts Sectional drawing which shows operation | movement until the integration process of the 2nd cycle is completed

<Embodiment>
An embodiment of the present invention will be described with reference to FIGS. In this embodiment, an apparatus for counting and accumulating stick-type packaging bags manufactured by an automatic filling and packaging machine is illustrated.
As shown in FIGS. 1 and 2, the counting and accumulating device 20 is attached to the discharge (supply) side of the vertical multi-row automatic filling and packaging machine 10, and the stick-type packaging bag p accumulated by the device 20 is a bucket. A predetermined number of packages are conveyed by the conveyor 70 to the next process such as boxing. The stick-type packaging bag p (hereinafter simply referred to as packaging bag p) has a content of powder such as sugar and is formed in an elongated and substantially cylindrical shape.

The function of the vertical multi-row automatic filling and packaging machine 10 (hereinafter simply referred to as the packaging machine 10) of this embodiment will be briefly described with reference to FIG.
The raw fabric wrapping film fed out from the film roll F is cut into 10 rows by a predetermined width by the slitter 11, and each wrapping packaging film f is wound in the width direction in the vertical sealing device 12 and is placed on the overlapping end. After the vertical seal is applied, a cylindrical body is formed. After the horizontal seal is applied at a predetermined position of the cylindrical body by the horizontal seal device 13, the contents stored in the hopper 14 (FIG. 1) are stored. A semi-wrapping bag is formed by filling with the filling chute 15. The semi-wrapping bags are sent out one cycle at a time, and further sealed horizontally to form a stick-shaped packaging bag closed at both ends. Each packaging bag p is manufactured. As a result, as for the packaging bag p, ten packages arranged in a horizontal row are manufactured at the same time and are discharged (supplied) intermittently.

  A counting and accumulating device 20 is disposed at a front position of the supply unit 17 of the packaging machine 10 described above. The counting and accumulating device 20 is provided so as to be placed on a casing 73 that houses one end side of the bucket conveyor 70. The apparatus 20 is roughly provided with a rectangular box-shaped main body 21 having an upper surface opening. A counting part 22 of the packaging bag p is provided on the upper side of the main body part 21, and the counted packaging bag p is provided on the lower side. A stacking unit 23 that stacks and moves to the bucket conveyor 70 is continuously provided.

  The structure of the counting unit 22 will be described in detail with reference to FIGS. At the upper position in the main body 21, a receiving plate 25 having a rectangular shape in the left-right direction in plan view is supported in a horizontal posture by supporting both front and rear edges with a support frame 26 passed into the main body 21. An accommodation chamber constituting body 27 having a rectangular shape in plan view that is slightly smaller than the receiving plate 25 is fixed to the upper surface of the receiving plate 25.

  The housing chamber structure 27 is further configured by stacking the upper structure 30 at a predetermined interval on the upper surface of the lower structure 40. In the upper structure 30, a pair of front and rear side walls 31 that are long in the left-right direction and short are arranged at a predetermined interval, and in the region near the left and right end portions between the front and rear side walls 31, a partition of the same height is provided. Six walls 32 are passed with a predetermined interval in the left-right direction. As a result, in the upper structure 30, five upper storage chambers 33 that are elongated in the front-rear direction are formed at a constant pitch in a region close to the left and right ends.

Specifically, the upper storage chamber 33 has a length and width that are slightly larger than the packaging bag p, and has a depth that is, for example, slightly more than four times the thickness of the packaging bag p. On the left and right side surfaces of each upper storage chamber 33, guide surfaces 34 are formed that are open outward in the region of the substantially upper half.
An intermediate space 35 having a width slightly more than three times that of the upper storage chamber 33 is provided between the left and right upper storage chamber groups 33A. Further, among the six partition walls 32, the central four partition walls 32 have a slightly lower width on the lower side than the lower width of the upper storage chamber 33.

  In the lower structure 40, a pair of front and rear side walls 41 that are also long in the left-right direction but are taller than the side wall 31 of the upper structure 30 are arranged at the same interval as the upper structure 30 side. In the region close to the left and right end portions between the front and rear side walls 41, and in the upper half region of the side wall 41, there are six partition walls 42 of approximately the same height as the upper structure 30 side in the left-right direction. Thus, five lower storage chambers 43 elongated in the front-rear direction are provided in the upper half region in the region near the left and right ends. It is formed at a constant pitch that is aligned with each upper storage chamber 33.

However, the depth of the lower storage chamber 43 is substantially the same as that of the upper storage chamber 33, but it is formed a little wider so that the two packaging bags p can be stored side by side while being partly stacked. At the upper ends of the left and right side surfaces of each lower storage chamber 43, a guide surface 44 that is open outward is formed. An intermediate space 45 having the same width as the upper structural body 30 side is provided between the left and right lower storage chamber groups 43A.
Further, an installation space 46 opened on both the left and right sides is formed in the lower half region of the lower structure 40, and a movable bottom plate 55, which will be described later, is slidably inserted therein.

  The lower structure 40 and the upper structure 30 having such a structure are stacked at a predetermined interval (for example, about 1/3 of the depth of the upper accommodation chamber 33) as described above, and before and after the gap 37. The connecting body 38 is applied to the entire outer surface extending over the upper and lower side walls 31 and 41 and is fixed while the upper and lower structural bodies 30 and 40 are integrated. Is formed. A guide groove 39 aligned with the gap 37 is cut over the entire length at a position corresponding to the gap 37 on the inner surface of each coupling body 38.

The accommodation chamber constituting body 27 is placed and fixed on the receiving plate 25. In addition, a drop opening 25A having a square planar shape that matches the planar shape of the intermediate space 45 between the left and right lower storage chamber groups 43A is opened at the center of the receiving plate 25.
Further, as shown in FIG. 4, chutes 18 that are directed obliquely downward are individually connected to the supply portions 17 of the wrapping bags p over 10 rows in the wrapping machine 10, and the lower ends of the chutes 18 are accommodated. Each of the ten upper storage chambers 33 provided in the chamber structure 27 faces the upper surface, specifically the end position on the packaging machine 10 side on the upper surface.

A pair of left and right shutters 50 that can simultaneously open and close the bottom surfaces of the upper storage chambers 33 of the left and right upper storage chamber groups 33A are provided in the gap 37 of the storage chamber structure 27. The shutter 50 has a main body plate 51 having a shape that is square when viewed from above and has a thickness that fits tightly in the gap 37. Both front and rear edges of the shutter 50 are fitted in the guide grooves 39 of both coupling bodies 38, and the inside of the gap 37 is filled. It is slidably fitted in the left-right direction.
In the main body plate 51 of each shutter 50, five openings 52 having the same cross-sectional shape as the bottom surface of the upper storage chamber 33 are formed at the same pitch as the upper storage chamber 33.

  On the other hand, a pair of left and right air cylinders 54 are mounted in a horizontal posture and facing each other on both the left and right sides of the position where the shutter 50 is disposed in the main body 21. The left and right air cylinders 54 are configured such that the piston rods 54 </ b> A expand and contract by the arrangement pitch of the upper accommodating chamber 33, and the tip ends of the piston rods 54 </ b> A of the air cylinders 54 are the outer ends of the left and right shutters 50, respectively. It is connected to the edge.

As shown on the left side of FIGS. 5 and 6, when the piston rod 54A of the air cylinder 54 is contracted, the respective openings 52 of the shutter 50 are retracted outward from the positions where they are aligned with the corresponding upper accommodating chambers 33. In other words, when the piston rod 54A is extended as shown in the right side of FIGS. 5 and 6, each opening 52 of the shutter 50 corresponds to the corresponding upper storage. It moves forward to an open position that aligns with the chamber 33 and opens its bottom surface.
In short, the extension of the piston rod 54A of the air cylinder 54 causes the shutter 50 to advance to the open position, simultaneously opening the bottom surfaces of the upper storage chambers 33 for each of the five chambers, and the piston rod 54A contracting to the original position. The shutter 50 is retracted to the closed position, and the bottom surfaces of the five upper storage chambers 33 are simultaneously closed.

  Furthermore, the installation space 46 of the lower structure 40 is equipped with a pair of left and right movable bottom plates 55 to close the bottom surfaces of the lower storage chambers 43 of the left and right lower storage chamber groups 43A. As shown in FIG. 7, the movable bottom plate 55 has a shape in plan view and has a thickness that is substantially half the height of the installation space 46, and both side edges are closely fitted between the front and rear side walls 41. It can slide in the left-right direction. Further, on the lower surface of the inner end portion of each movable bottom plate 55, a square bar-like pusher 57 that reaches the upper surface of the receiving plate 25 and can slide on the upper surface is provided over the entire width.

  The original position of the left and right movable bottom plates 55 is as shown on the left side of FIG. At that time, the entire bottom surface of the lower housing chamber 43 is closed for each of the left and right lower housing chamber groups 43A by the region inside the movable bottom plate 55, and the outer region is largely outside the installation space 46. It is designed to protrude. Driving bodies 58 are respectively attached to the lower surfaces of the outward projecting ends of the movable bottom plates 55, and each driving body 58 is freely movable in the left-right direction along a guide (not shown).

Each driving body 58 is connected to the output shaft of the servo motor 59 via a drive connection mechanism such as a screw mechanism, and is driven according to the rotation amount (rotation time) of the output shaft of the servo motor 59. The amount of movement of the body 58 can be controlled.
Taking the movable bottom plate 55 on the right side of FIG. 5 as an example, when the servo motor 59 is driven to rotate in the forward direction from the state in which the movable bottom plate 55 is in the original position, the movable bottom plate 55 is moved through the movement of the driving body 58. When it slides in the opening direction, which is the right direction in the figure, and is driven to rotate in the reverse direction, the movable bottom plate 55 slides in the closing direction, which is the left direction in the figure.
At that time, if the amount of rotation of the servo motor 59 is controlled, the stroke of the reciprocating motion of the drive body 58 can be controlled. It can be opened and then closed.

More specifically, the rotation amount of the servo motor 59 can be controlled in five steps corresponding to the number of the lower accommodating chambers 43. For example, when the minimum rotation amount of the first step is selected, the servo motor 59 By being driven forward by the same amount of rotation, the movable bottom plate 55 moves by a minimum stroke in the opening direction as shown on the right side of FIG. 5, and only the bottom surface of the innermost lower housing chamber 43 is opened. Thereafter, the servo motor 59 is reversely driven by the same amount of rotation, so that the movable bottom plate 55 moves back to the original position while closing the bottom surface of the innermost lower housing chamber 43.
As the rotation amount is increased, the number of lower storage chambers 43 whose bottom surfaces are opened increases sequentially from the inside, and the bottom surfaces of the five lower storage chambers 43 are all opened at the maximum. Control of the rotation amount of the servo motor 59 is programmed in advance.

As will be described in detail later, opening a predetermined number of bottom surfaces of the lower housing chamber 43 and dropping the packaging bag p onto the receiving plate 25 functions to count the number of packaging bags p.
On the other hand, when the movable bottom plate 55 moves to the predetermined open position and then moves back to the original position, the pusher 57 slides on the upper surface of the receiving plate 25 in the forward direction and receives the receiving plate. The packaging bag p that has fallen on the upper surface of the plate 25 is pushed forward, and dropped from the drop opening 25A of the receiving plate 25 toward the stacking portion 23.

The stacking unit 23 functions to stack the necessary number of packaging bags p dropped from the drop opening 25A of the receiving plate 25 in the counting unit 22 and move to the bucket conveyor 70.
Therefore, as shown in FIG. 2, a transition path 60 having a vertically long rectangular tube shape having a cross-sectional shape aligned with the drop opening 25 </ b> A of the receiving plate 25 is provided, and the introduction port 61 at the upper end is the drop opening of the receiving plate 25. While being connected to the lower surface of 25A, the outlet 62 at the lower end is arranged so as to correspond to the position immediately above the transition position set in the bucket conveyor 70.

  In the middle of the transition path 60 in the height direction, first, second, and third opening / closing plates 63, 64, and 65 that fully close or fully open the transition path 60 are provided in three stages. Each of the open / close plates 63, 64, 65 is individually opened / closed by an air cylinder (not shown). The timing of opening / closing each of the opening / closing plates 63, 64, 65 depends on conditions such as the number of packaging bags p to be accumulated and the conveying speed of the bucket conveyor 70. It is individually programmed so that it can be migrated at the right time.

Next, the operation of this embodiment will be described with reference to FIGS. In this embodiment, the case where the packaging bags p automatically manufactured by the packaging machine 10 are grouped by 24 and transferred to each bucket 71 of the bucket conveyor 70 is illustrated.
In a state where all of the left and right shutters 50 of the counting unit 22, the left and right movable bottom plates 55, and the three open / close plates 63, 64, 65 of the stacking unit 23 are closed, the packaging machine 10 produces a horizontal row. The ten packaging bags p arranged side by side slide down the chute 18 and are individually placed in the upper storage chamber 33, and are received by the closed shutter 50 as shown in FIG. Once received by the shutter 50, the packaging bag p is housed in the upper housing chamber 33 while maintaining a normal horizontal posture.

  Next, as shown in FIG. 8B, when the left and right shutters 50 are opened, the bottom surfaces of all the ten upper storage chambers 33 are opened, and the ten packaging bags p remain in a horizontal posture. It falls into the lower storage chamber 43 directly below and is received by the movable bottom plate 55 in the closed original position. Next, as shown in FIG. 5C, the left and right movable bottom plates 55 are moved to a position where the bottom surfaces of all the lower accommodating chambers 43 of the five chambers are opened, and are thereby accommodated in all the lower accommodating chambers 43. A total of ten packaging bags p dropped on the backing plate 25. During this time, the opened shutter 50 is closed, and then the 10 manufactured packaging bags p are individually placed in the upper storage chamber 33 and received by the shutter 50.

  Subsequently, as shown in FIG. 9A, the left and right movable bottom plates 55 are moved back to their original positions to close the bottom surfaces of all the ten lower chambers 43, and at the same time, the respective pushers 57 are placed on the receiving plate 25. The left and right packaging bags p, which have been dropped, are pushed down and dropped into the transition path 60 from the drop opening 25A, and 10 packaging bags p are received by the first opening / closing plate 63. After that, when the left and right shutters 50 are opened, ten packaging bags p accommodated in the upper accommodation chambers 33 of all 10 drops into the lower accommodation chamber 43 and are received by the movable bottom plate 55.

  Next, as shown in FIG. 9 (B), the left and right movable bottom plates 55 are moved again to the position where the bottom surfaces of all the lower housing chambers 43 of each of the five chambers are opened, and a total of 10 packaging bags p are received. It falls on the plate 25. During this time, the shutter 50 is closed, and the next 10 manufactured packaging bags p are placed in the upper storage chamber 33 and received by the shutter 50. Subsequently, as shown in FIG. 5C, the left and right movable bottom plates 55 are moved back to their original positions, and the bottom surfaces of all the ten lower chambers 43 are closed, and at the same time, each pusher 57 is placed on the receiving plate 25. The left and right packaging bags p of the left and right packages are pushed down, dropped into the transition path 60 from the dropping port 25A, and 10 packages are added, so that a total of 20 packaging bags p are received by the first opening / closing plate 63. It becomes a state. After that, when the left and right shutters 50 are opened, ten packaging bags p accommodated in the upper accommodation chambers 33 of all 10 drops to the lower accommodation chamber 43 and are received by the movable bottom plate 55.

Next, as shown in FIG. 10 (A), the left and right movable bottom plates 55 move to the position where only the bottom surfaces of the two lower housing chambers 43 are opened, so that only the four packaging bags p are dropped. It falls on the receiving plate 25 at a position close to the mouth 25A. During this time, the shutter 50 is closed, and 10 manufactured packaging bags p are placed in the upper storage chamber 33 and received by the shutter 50.
Subsequently, as shown in FIG. 5B, the left and right movable bottom plates 55 are moved back to their original positions, and the bottom surfaces of all the ten lower chambers 43 including two opened chambers are closed simultaneously. Each pusher 57 pushes the left and right two packaging bags p that have been dropped onto the receiving plate 25, drops them into the transition path 60 from the drop opening 25A, adds four more packages, and wraps a total of 24 required packages. The bag p is received by the first opening / closing plate 63.
As described above, the necessary 24 packets are counted in the counting unit 22, and the same number of packaging bags p are dropped into the stacking unit 23.

  At the same time, the next counting cycle is entered, and as shown in FIG. 10B, the left and right shutters 50 are opened, so that the 10 packaging bags p accommodated in the upper accommodation chambers 33 of the 10 chambers are respectively lower. Although falling to the storage chamber 43, in the lower storage chamber 43 of each of the two inner chambers, the packaging bag p is dropped on the receiving plate 25 by the movement operation of the movable base plate 55, so one packaging bag p Is received by the movable bottom plate 55. On the other hand, in the lower storage chamber 43 of each of the three outer chambers, the previous packaging bag p remains without dropping, so that the two packaging bags p are movable bottom plates. It will be in the state received at 55.

Next, as shown in FIG. 10 (C), the left and right movable bottom plates 55 are moved to a position where the bottom surfaces of all the five lower chambers 43 are opened. One packaging bag p is dropped from the lower storage chamber 43 one by one and two packaging bags p are dropped from the lower storage chamber 43 of the outer three chambers, and 16 packaging bags p in total of 8 left and right packages are placed on the receiving plate 25. Fall into.
During this time, the shutter 50 is closed, and 10 manufactured packaging bags p are placed in the upper storage chamber 33 and received by the shutter 50.
In addition, when the first opening / closing plate 63 of the stacking unit 23 is opened, the 24 packaging bags p received by the first opening / closing plate 63 are dropped and transferred onto the second opening / closing plate 64 below. It is. After that, the first opening / closing plate 63 returns to the closed position.

Subsequently, as shown in FIG. 11 (A), the left and right movable bottom plates 55 are moved back to their original positions to close the bottom surfaces of the lower housing chambers 43 of all the 10 chambers, and at the same time, each pusher 57 is moved to the receiving plate. The left and right eight packaging bags p that have fallen on the top 25 are pushed down, and a total of 16 packaging bags p are dropped into the transition path 60 from the drop opening 25 </ b> A, and these are received by the first opening / closing plate 63.
After that, when the left and right shutters 50 are opened, ten packaging bags p accommodated in all ten upper accommodation chambers 33 fall into the lower accommodation chamber 43, respectively, and all previous packaging bags p are now dropped. Therefore, a total of 10 packaging bags p are received on the movable bottom plate 55, one by one.
During this time, when the second opening / closing plate 64 is opened, the 24 packaging bags p received by the second opening / closing plate 64 are dropped and transferred onto the third opening / closing plate 65 below. After that, the second opening / closing plate 64 returns to the closed position.

Next, as shown in FIG. 11 (B), the left and right movable bottom plates 55 move to positions where the bottom surfaces of the lower housing chambers 43 of the four chambers are opened. Falls on the backing plate 25. During this time, the shutter 50 is closed, and 10 manufactured packaging bags p are placed in the upper storage chamber 33 and received by the shutter 50.
Subsequently, as shown in FIG. 4C, the left and right movable bottom plates 55 are moved back to their original positions, and simultaneously, the bottom surfaces of all the ten lower chambers 43 including the four opened chambers are closed, Each pusher 57 pushes the left and right four packaging bags p that have been dropped on the receiving plate 25 and drops into the transition path 60 from the drop opening 25A, and 8 packages are added to the 16 packets that have been dropped first. Thus, a total of 24 packaging bags p are received by the first opening / closing plate 63.
Similarly, the necessary 24 packets are counted in the counting unit 22, and the same number of packaging bags p are dropped into the stacking unit 23.
During this time, when it is time for one bucket 71 of the bucket conveyor 70 to reach the transition position, the third opening / closing plate 65 is opened, so that the 24 packaging bags p received by the third opening / closing plate 65 can be obtained. It falls, is received in the bucket 71, and is conveyed toward the next process.

  Thereafter, the 10 packaging bags p supplied at the same time are once put in the upper storage chamber 33 and then dropped together into the lower storage chamber 43 when the shutter 50 is opened, and then the movement stroke of the movable bottom plate 55 is controlled. As a result, the bottom surface of the predetermined number of lower storage chambers 43 is opened, and a packaging bag p having a corresponding number of packages is dropped onto the receiving plate 25 and is moved by the pusher 57 along with the return movement of the movable bottom plate 55. The operation of dropping the packaging bag p dropped onto the receiving plate 25 into the drop opening 25A is repeated until the number of dropped packages reaches 24, and the packaging bags p accumulated 24 pieces each include the first opening / closing plate 63. To the third opening / closing plate 65 and sequentially received by the buckets 71 of the bucket conveyor 70.

As described above, according to the present embodiment, a number of advantages can be obtained.
Counting can be performed in the process of dropping the packaging bag p from the lower housing chamber 43 and the necessary number of accumulations can be performed. In other words, the counting unit 22 and the stacking unit 33 are integrated in the space below the lower housing chamber 43. Compared to the conventional device, where it is indispensable to arrange the conveyor toward the counting unit located at a position away from the storage chamber, it is possible to realize space saving by removing the conveyor. In addition, the manufacturing cost can be reduced.

When changing the number of openings of the bottom surface of the lower storage chamber 43, a movable bottom plate 55 is provided to cover the bottom surface of each lower storage chamber 43, and the movement stroke of the movable bottom plate 55 is changed by a servo motor 59. Since the number of opening of each bottom surface of 43 is changed, for example, when compared with a case where a bottom plate is individually arranged on the bottom surface of each lower storage chamber 43 and the bottom plate is individually opened and closed, the number of components is reduced. Space can be saved.
A pusher 57 is integrally provided on the movable bottom plate 55 that functions to count the packaging bags p, and the packaging bag p is accumulated in the stacking unit 23 by using an operation in which the movable bottom plate 55 moves back to the original position. That is, since the movable bottom plate 55 has a structure that also serves as the pusher 57, the structure can be further simplified.

The lower housing chamber 43 is divided into two left and right groups of five chambers, and each group is provided with a movable bottom plate 55 and a servo motor 59 that is a driving member of the movable bottom plate 55, so that the opening / closing operation time itself of the movable bottom plate 55 is shortened. can do.
An upper storage chamber 33 whose bottom surface is opened and closed by a shutter 50 is provided on the lower storage chamber 43, and the supplied packaging bag p is guided to the upper storage chamber 33 and received by the shutter 50 which is once closed, and is opened by opening the same. Since the packaging bag p is configured to drop into the lower housing chamber 43, the packaging bag p is received in a horizontal posture by the shutter 50 and then dropped into the lower housing chamber 43 while maintaining the same horizontal posture. The packaging bag p can be stored in the lower storage chamber 43 in a normal posture.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) As means for changing the number of open bottom surfaces of the lower storage chambers in the left and right lower storage chamber groups, a bottom plate is individually arranged on the bottom surface of each lower storage chamber, and the same bottom plate is individually opened and closed. Also good.
(2) The movable bottom plate that functions to count the packaging bags and the pusher that functions to drop the packaging bags into the stacking unit may be provided separately.

(3) In the above embodiment, the lower base chamber group is divided into two groups on the left and right, and each group is provided with a movable bottom plate and a pusher. However, the movable bottom plate and the pusher are not divided into two groups. You may prepare so that all the lower accommodation chambers may be covered.
(4) Corresponding to the above, a series of upper storage chambers may be provided, and the shutter may be covered by a single sheet extending over the entire upper storage chamber.
(5) On the other hand, it is good also as a structure which removes an upper accommodation chamber and a shutter, and accommodates the supplied packaging bag in a lower accommodation chamber (single accommodation chamber) as it is.

(6) The drive member for the shutter is not limited to the air cylinder exemplified in the above embodiment, and other drive members such as a solenoid and a servo motor can be applied.
(7) In the above embodiment, the case where the number of stacks is 24 for the packaging machine that manufactures the packaging bags over 10 rows is exemplified, but the number of stacks is set to an arbitrary number of 20 or more. Is possible.
(8) The present invention is not limited to the 10-row type exemplified in the above embodiment, and can be applied to and applied to all vertical multi-row automatic filling and packaging machines having other numbers of rows. The number of lower storage chambers or the like in the counting and stacking apparatus may be set in accordance with the manufacturing column, and similarly, the number of stacking can be arbitrarily set.

p ... stick-type packaging bag 10 ... packaging machine 18 ... chute 20 ... counting and accumulating device 22 ... counting unit 23 ... accumulating unit 25 ... receiving plate (receiving unit)
25A ... Drop-in port 33 ... Upper storage chamber 43 ... Lower storage chamber (storage chamber)
DESCRIPTION OF SYMBOLS 50 ... Shutter 51 ... Main body plate 52 ... Opening part 54 ... Air cylinder (shutter drive member)
55. Movable bottom plate (bottom plate; bottom opening / closing mechanism)
57 ... pusher 59 ... servo motor (drive member; bottom opening / closing mechanism)
60 ... Transition path 63, 64, 65 ... Opening / closing plate 70 ... Bucket conveyor

Claims (6)

A packaging bag counting and accumulating device attached to a packaging machine that simultaneously manufactures a plurality of rows of stick-type packaging bags and supplies them intermittently,
A storage chamber in the same row that has a bottom portion that can be opened and closed, and stores the packaging bags supplied from the packaging machine corresponding to each row;
A bottom opening and closing mechanism for opening any number of bottoms of the storage chamber and dropping the packaging bag into the receiving part;
A pusher that presses the packaging bag received at the receiving part and drops it into the collecting part;
A packaging and counting device for packaging bags, comprising: A bottom plate that covers the bottom of each of the storage chambers is provided, and a drive member that reciprocates the bottom plate along the direction in which the storage chambers are arranged is provided, and the storage chamber can be changed by changing a movement stroke of the bottom plate. The counting and accumulating apparatus for packaging bags according to claim 1, wherein the number of open bottoms of each of the packaging bags is changed. The counting and accumulating apparatus for a packaging bag according to claim 2, wherein the bottom plate also serves as the pusher. 4. The storage chamber according to claim 2, wherein the storage chamber is divided into two groups each having a predetermined number in the arrangement direction, and the bottom plate and the drive member are provided for each storage chamber group. Counting and collecting device for packaging bags. A shutter that can be opened and closed is provided at an intermediate position in the depth direction of the storage chamber. When the shutter is closed, the packaging bag supplied from the packaging machine is temporarily received, and the packaging bag is dropped to the bottom of the storage chamber when the shutter is opened. The packaging and counting device for a packaging bag according to any one of claims 1 to 4, wherein the device is configured as described above. The shutter has a shape in which a plurality of openings aligned with the accommodation chamber are arranged at the same pitch as the arrangement pitch of the accommodation chamber, with respect to the main body plate penetrating the accommodation chambers along the arrangement direction thereof. A shutter drive member is provided for reciprocating the shutter between an open position where each opening is aligned with a corresponding storage chamber and a closed position where each opening is retracted to the side of the corresponding storage chamber. 6. The counting and accumulating device for packaging bags according to claim 5, wherein:

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