JP4383365B2 - Packaging bag contents weighing device - Google Patents

Description

  The present invention relates to a packaging bag content measuring device, and more specifically, to a packaging and filling machine for filling a packaging bag with contents such as granules, powder, etc. (collectively referred to as granules in this application). The present invention relates to a packaging bag content measuring device for measuring granules to be filled in a packaging bag.

In Patent Document 1, a granule that is disposed between a storage part that stores granules to be the contents of a packaging bag and a filling part that fills the packaging bag with the measured granules and flows down from the storage part is disclosed. A packaging bag content measuring device that measures and feeds a predetermined amount to a filling unit is disclosed. And this packaging bag content measuring device is arranged below the measuring hole and the measuring hole in the vertical direction capable of generating a volume corresponding to a predetermined amount, and by closing the lower side of the measuring hole, And a shutter that opens the lower side of the metering hole while the metering hole is filled with a predetermined amount of granule and allows the predetermined amount of granule in the metering hole to flow down to the filling part, An oscillating body (rotor) that slides with respect to the peripheral edge of the upper end and has a ground portion for setting the amount of granules stored in the measuring hole to a predetermined amount.
Japanese Patent No. 2759586

  However, according to the above prior art, the rocking body is constituted by a cylindrical body having a T-shaped cross-sectional storage hole, so the weight of the rocking body is large and there is a limit to speeding up the rocking motion. .

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, to reduce the weight of the swinging body, and to provide a packaging bag content measuring device capable of speeding up the swinging motion. To do.

  The packaging bag content measuring device of the present invention is disposed between a storage unit that stores granules to be the contents of a packaging bag and a filling unit that fills the measured granules into the packaging bag, and stores the storage. A packaging bag content measuring device that measures a predetermined amount of granules flowing down from a section and feeds them to the filling section, wherein a vertical measuring hole capable of generating a volume corresponding to the predetermined amount is formed. A housing portion is disposed below the measuring hole, and by closing the lower side of the measuring hole, the granule can be stored in the measuring hole and the predetermined amount of granules is filled in the measuring hole. In this state, the lower side of the measuring hole is opened, the shutter for allowing the predetermined amount of granules in the measuring hole to flow down to the filling portion, and the amount of the granules stored in the measuring hole are set to the predetermined amount. A rocking part accommodated in the housing part having a ground part for The oscillating body is perforated in a substantially arc-shaped cylindrical storage tank section for storing granules flowing down from the storage section, and a bottom surface of the storage tank section, A guide hole is provided that intermittently communicates with the measuring hole based on the swinging motion of the swinging body, and causes the granules in the storage tank portion to flow down into the measuring hole and having the ground portion.

  According to the packaging bag content measuring apparatus of the present invention, since the oscillating body is formed in a substantially arc tube shape instead of a cylindrical shape, the weight of the oscillating body can be greatly reduced, and the speed of the oscillating motion can be increased. Become.

Here, by approaching the guide hole of the storage tank part and inserting the chute of the storage part, it is possible to store a minimum amount of granules in the vicinity of the measuring hole, and by swinging the oscillator Granules can be quickly moved from the guide hole to the metering hole.

  Further, when a portion extending in the four directions from the guide hole forming portion for forming the guide hole is formed on the outer peripheral surface of the storage tank portion so as to be spaced apart from the inner peripheral surface of the housing portion, the storage tank is provided at this portion. A wide space is formed between the outer peripheral surface of the portion and the inner peripheral surface of the housing portion. This space acts as a space for accommodating granules that have entered between the outer peripheral surface of the storage tank portion and the inner peripheral surface of the housing portion from the peripheral portion of the guide hole. Therefore, in the case where the outer peripheral surface of the storage tank and the inner peripheral surface of the housing portion are slidably contacted without adopting the configuration of the present invention, the invading granules are kneaded between both peripheral surfaces, and the sliding resistance is reduced. Although problems such as an increase are likely to occur, an increase in sliding resistance due to kneading of granules can be suppressed by forming such a space as in the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a packaging and filling machine incorporating a packaging bag content measuring device according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a weighing and filling device in the packaging and filling machine, and FIG. FIG. 4 is a perspective view of an oscillating body of the packaging bag content measuring device, FIGS. 5 to 8 are operation explanatory views of the weighing device, FIG. These show the block diagram of the product manufactured by the said packaging filling machine, respectively.

  The packaging and filling machine shown in FIG. 1 is a packaged product (compound package) W formed by connecting three packaged products (single package) B in the lateral direction as shown in FIG. W is collected every predetermined number, bundled with tape, and packed in a box. Each single package B of the double package W contains a predetermined amount of a drug or the like consisting of granules or powders (collectively referred to as granules) as a content Y0.

(1) Packing and filling machine The packing and filling machine includes a weighing and filling device M1, a packaging bag forming device M2, a cutter device M3, a packaged weighing device M4, a stacking device M5, a banding device M6, and a boxing device (not shown). The package filling machine according to the present embodiment is configured with a single-pack weighing device M7 and a filling amount fine adjustment device M8, and has a feature in the weighing and filling device M1, and other components M2 to M8 are The configuration is almost the same as the above-described prior art (Japanese Patent No. 2759586).

  The weighing and filling device M1 measures the granules filled in the individual single package B packaging bags, and puts the weighed granules Y0, that is, a predetermined amount of the granules Y0 into the packaging bags that are being formed by the packaging bag forming device M2.

  The packaging bag forming device M2 makes the two films F face each other, and heat-seals a predetermined portion of the two films F at a predetermined timing in accordance with the timing of receiving the granules Y0 fed from the weighing and filling device M1. Finally, it corresponds to a series of double-pack W, that is, a continuous package (multi-pack group) X (indicated by a two-dot chain line in FIG. 9) in which each single package B contains a predetermined amount of granules Y0. .).

  The cutter device M3 cuts the double packet group X as necessary, such as a slit S (FIG. 9) and a notch, and divides it into multiple packages W.

  The packaged goods weighing device M4 weighs the double-pack W sent from the cutter device M3 to check whether or not each double-pack W contains a predetermined amount of granules Y0 as set in advance.

  The accumulating device M5 accumulates the multiple packages W every predetermined number.

  The banding device M6 bundles a plurality of bundles W collected in a predetermined number with a tape.

  A boxing device (not shown) packs each bundle of double wraps W.

  The single package weighing device M7 is a single package B obtained by operating the cutter device M3 at an appropriate timing whether each single package B of the double package W contains a predetermined amount of granules Y0. Weigh.

  The filling amount fine adjustment device M8 is used to fill the granules by adjusting the size of the measurement hole 17 (described later) of the weighing and filling device M1 based on the weighing result of the packaged weighing device M4 and the weighing result of the single package weighing device M7. Fine tune the amount.

(2) Metering and filling device M1
As shown in FIG. 2, the measuring and filling apparatus M1 has a storage part 1 for storing the granules Y1 that are the contents of the packaging bag and a packaging bag contents measuring apparatus 2 for measuring the granules Y2 flowing down from the storage part 1. And a filling portion 3 for filling the granules Y0 measured by the measuring device 2 into the packaging bag being formed by the packaging bag forming device M2.

  The storage unit 1 includes a hopper 10 into which granules are charged, and three branch chutes 11 are continuously provided below the hopper 10.

  The filling unit 3 includes a chute 12 below the measuring device 2, and the chute 12 is configured to approach the packaging bag when the measured granules Y0 are put into the packaging bag by a driving mechanism 13 such as a cam or a link. Is done.

(3) Packaging bag contents measuring device 2
As shown in FIG. 3, the packaging bag content measuring device 2 has a housing portion 16 in which a rocking body (rotor) 14 and a sliding contact surface (inner peripheral surface) 15 that accommodates the rocking body 14 so as to be rockable are formed. And a measuring hole 17 formed in the vertical direction on the bottom surface side of the housing portion 16 and a shutter 18 for opening and closing the lower side of the measuring hole 17.

  As shown in FIG. 4, the oscillating body 14 includes a substantially arc-shaped cylindrical storage tank portion 20 having oscillating shaft portions 20a on both end faces. The swing shaft portion 20a is pivotally supported by the housing portion 16, and the storage tank portion 20 is rotated by a drive mechanism (not shown) using an electric motor as a power source such as a servo motor. A branch chute 11 is inserted into the storage tank portion 20 from above to the vicinity of the guide hole 24 on the bottom surface, and the storage tank portion 20 stores the granules Y2 flowing down from the branch chute 11. The bottom surface of the reservoir 20 is intermittently communicated with the measuring hole 17 based on the swinging motion of the swinging body 14, and the three guide holes 24 that allow the granules Y 2 in the reservoir 20 to flow down into the measuring hole 17. Is drilled. As shown in FIGS. 3 and 4, on the outer peripheral surface 20 d of the storage tank portion 20, a portion (a portion around the guide hole forming portion 25) 26 extending in four directions from the guide hole forming portion 25 that forms the guide hole 24 is The housing portion 16 is formed so as to be spaced apart from the inner peripheral surface 15. The guide hole forming portion 25 slides on the inner peripheral surface 15 of the housing portion 16 and, as will be described in detail later, a part of the guide hole forming portion 25 (the guide hole forming end surface 25a located on the right side in FIG. 3). ) Constitutes a grinding part.

  The measuring hole 17 is configured by being surrounded by a substantially U-shaped end surface 16a in a plan view formed in the housing portion 16 and a movable end surface 28a that closes an opening of the U-shaped end surface 16a. Is formed. The movable end surface 28a is constituted by a tip surface of an adjustment member 28 which is a component of the filling amount fine adjustment device M8, and the adjustment member 28 is a screw-adjustable drive mechanism (not shown) which is powered manually or using a motor as a power source. Thus, it can be moved minutely in the direction of the arrow a shown in FIG. 3 while sliding with respect to the lower surface 16b of the housing portion 16, and the opening area of the measuring hole 17 and the volume thereof are finely adjusted according to the position of the front end surface 28a. Then, the amount of the granules Y0 filled in the individual package B is determined by the volume of the measuring hole 17.

  The shutter 18 is disposed below the measuring hole 17 so as to be movable in the direction of arrow b shown in FIG. The shutter 18 has a drop hole 27 penetrating in the vertical direction. When the shutter 18 is in a position indicated by a solid line in FIG. 3, the drop hole 27 does not communicate with the measuring hole 17, and the lower side of the measuring hole 17 is the shutter 18. Thus, the granules Y2 can be stored in the measuring hole 17. On the other hand, when the shutter 18 is in the position indicated by the two-dot chain line in FIG. 3, the drop hole 27 communicates with the measurement hole 17, and the granule Y0 filled in the measurement hole 17 can drop to the filling unit 3.

  Next, operation | movement of the packaging bag content measuring apparatus 2 comprised as mentioned above is demonstrated based on FIGS.

  As shown in FIG. 5, the shutter 18 is in the retracted position, the drop hole 27 of the shutter 18 is not in communication with the measuring hole 17, the lower side of the measuring hole 17 is closed, and the guide of the oscillator 14 When the hole 24 is not in communication with the measuring hole 17, the granules in the storage tank part 20 remain in the storage tank part 20 while being filled in the guide hole 24.

  When the oscillator 14 rotates counterclockwise from the state shown in FIG. 5, the guide hole 24 communicates with the measuring hole 17 as shown in FIG. 6, and the granules in the guide hole 24 are in the measuring hole 17. The granules Y2 are filled in the measuring holes 17.

  When the oscillating body 14 is rotated in the clockwise direction from the state shown in FIG. 6, the granule Y2 in the measuring hole 17 is cut off by the guide hole forming end face 25a, and as shown in FIG. A predetermined amount of the granules Y0 is filled in.

  When the shutter 18 moves forward from the state shown in FIG. 7 and the drop hole 27 of the shutter 18 communicates with the measuring hole 17, as shown in FIG. 8, a predetermined amount of granules Y0 filled in the measuring hole 17 is obtained. Falls to the chute 12 of the filling portion 3 below through the drop hole 27.

  Thereafter, the shutter 18 moves backward to return to the state shown in FIG. 5, and the series of operations described above are repeated.

  As described above, the packaging bag content measuring device 2 according to the present embodiment includes the storage unit 1 that stores the granules Y1 that are the contents of the packaging bag and the filling that fills the packaging bags with the measured granules Y0. The packaging bag content measuring device 2 is arranged between the unit 3 and measures a predetermined amount of the granule Y2 flowing down from the storage unit 1 and feeds it to the filling unit 3, and has a volume corresponding to the predetermined amount. A housing part 16 in which a vertical measuring hole 17 that can be generated is formed, and disposed below the measuring hole 17, and by closing the lower side of the measuring hole 17, the granules can be stored in the measuring hole 17. At the same time, with the metering hole 17 filled with a predetermined amount of granules Y0, the lower side of the metering hole 17 is opened, and a shutter 18 that causes the predetermined amount of granules Y0 in the metering hole 17 to flow down to the filling unit 3; A ground portion 25a for setting the amount of granules stored in the inside to a predetermined amount In the packaging bag content measuring device 2 including the swinging body 14 accommodated in the housing part 16, the swinging body 14 is a substantially arc-shaped cylindrical storage tank part for storing the granules Y2 flowing down from the storage part 1. 20 and the bottom surface of the storage tank 20, and intermittently communicates with the measuring hole 17 based on the swinging motion of the swinging body 14 to let the granules Y2 in the storage tank 20 flow down into the measuring hole 17. And a guide hole 24 having a guide hole forming end face (ground portion) 25a.

  According to the packaging bag content measuring device 2 of the present embodiment, since the oscillating body 14 is formed in a substantially arc tube shape instead of a columnar shape, the weight of the oscillating body 14 can be significantly reduced, and the oscillating motion can be performed at high speed. Can be realized.

  Further, since the branch chute (chute) 11 of the storage unit 1 is inserted to the vicinity of the guide hole 24 of the storage tank unit 20, a minimum amount of granules Y2 can be stored in the vicinity of the measuring hole 17. The granules Y2 can be quickly moved from the guide hole 24 to the measuring hole 17 by the swinging of the swinging body 14.

  Further, since the portion 26 extending in the four directions from the guide hole forming portion 25 that forms the guide hole 24 is formed so as to be spaced apart from the inner peripheral surface 15 of the housing portion 16 on the outer peripheral surface 20d of the storage tank portion 20, this In the region 26, a wide space 30 (FIG. 3) is formed between the outer peripheral surface 20d of the storage tank portion and the inner peripheral surface 15 of the housing portion. This space 30 acts as a space for accommodating granules, particularly fine powder, which have entered between the outer peripheral surface 20 d of the storage tank portion and the inner peripheral surface 15 of the housing portion from the peripheral portion of the guide hole 24. Therefore, when the storage tank outer peripheral surface 20d and the housing inner peripheral surface 15 are configured to be in sliding contact with each other without adopting the configuration as in the present embodiment, the invading granules (fine powder) are both peripheral surfaces 20d, However, by forming the space 30 as in the present embodiment, the sliding resistance can be increased by kneading the granules. It becomes possible to suppress.

  In the above-described embodiment, the moving direction a of the adjusting member 28 for finely adjusting the capacity of the measuring hole 17 is set to be parallel to the rotating direction of the oscillator 14, but the moving direction a of the adjusting member 28 is set. May be set to be orthogonal to the rotational direction of the oscillator 14.

It is a schematic block diagram of the packaging filling machine with which the packaging bag content measuring apparatus which concerns on one Embodiment of this invention was integrated. It is a block diagram of the measurement filling apparatus in the packaging filling machine. It is sectional drawing of the packaging bag content measuring apparatus in the measurement filling apparatus. It is a perspective view of the rocking body of the packaging bag content measuring device. It is operation | movement explanatory drawing of the measuring device. It is operation | movement explanatory drawing of the measuring device. It is operation | movement explanatory drawing of the measuring device. It is operation | movement explanatory drawing of the measuring device. It is a block diagram of the product manufactured with the said packaging filling machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage part 2 Packaging bag content measuring device 3 Filling part 11 Branching chute (chute)
DESCRIPTION OF SYMBOLS 14 Oscillator 15 Housing part inner peripheral surface 16 Housing part 17 Metering hole 18 Shutter 20 Reservoir part 20d Reservoir part outer peripheral surface 24 Guide hole 25 Guide hole formation part 25a Guide hole formation end surface (ground part)
26 A part extending in all directions from the guide hole forming part 25
Y0, Y1, Y2 granules

Claims (3)

It is arranged between the storage part that stores the granules that are the contents of the packaging bag and the filling part that fills the packaging bag with the granules after weighing, and weighs the granules flowing down from the storage part for each predetermined amount And a packaging bag content measuring device for feeding to the filling unit,
A housing part in which a vertical measuring hole capable of generating a volume corresponding to the predetermined amount is formed, and is disposed below the measuring hole, and is closed in the measuring hole by closing the lower side of the measuring hole. A shutter for allowing granules to be stored and opening the lower side of the metering hole in a state where the metering hole is filled with the predetermined amount of granule and causing the predetermined amount of granule in the metering hole to flow down to the filling part A packaging bag content measuring device comprising: a rocking portion for setting the amount of granules stored in the measuring hole to the predetermined amount, and a rocking body accommodated in the housing portion,
The oscillating body is formed in a substantially arc-shaped cylindrical storage tank section for storing granules flowing down from the storage section, and is formed in the bottom surface of the storage tank section. A packaging bag content measuring device comprising: a guide hole having intermittently communicating and flowing down granules in the storage tank portion into the measuring hole and having the scraped portion. The packaging bag content measuring device according to claim 1, wherein a chute of the storage part is inserted close to the guide hole of the storage tank part. In the outer peripheral surface of the reservoir portion, a portion extending from the guide hole forming portion for forming the guide hole in four directions is a feature that it is formed to be positioned at a distance from the inner peripheral surface of the housing portion The packaging bag content measuring device according to claim 1 or 2.

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