JP6207482B2 - Powder scraping mechanism and powder packaging machine - Google Patents

Description

  The present invention relates to a powder dispenser that evenly divides and divides a powder, and more particularly to a powder wrapping machine that includes a rotary annular receiving member in the powder distribution part and a cutting device in the powder division part. The present invention relates to a powder scraping mechanism that is an action part of the cutting device of such a powder packaging machine.

  In addition to the packaging device (packaging machine) that divides the wrapping paper into packaging units and encloses the powder in each package, the powder dispensing machine that automatically supplies the powder (see, for example, Patent Documents 1 to 4) The powder supply part (powder feeder) arrange | positioned most upstream and upstream is comprised. Most of such powder dispensing machines also have a powder distribution / distribution unit arranged between the powder supply unit and the packaging device, among them, R disk type packing machines, R disk powder machines, etc. In the powder distribution machine called “Patent Documents 2 to 4”, a rotary annular receiving member (annular table) called “R disk” is provided in the powder distribution part that distributes the powder evenly among the powder distribution division parts. In addition, the powder distribution part that cuts the distributed powder one by one and puts it into the charging hopper of the packaging device of the powder distribution division unit includes a cutting device called a scraper or the like.

In such an R-disc type powder packaging machine, an annular groove (annular tray) called an R-groove is formed in the rotary annular receiving member, and powder is supplied from the powder supply unit to the annular groove while circulating and rotating the annular groove. By continuously feeding little by little, the powder is evenly distributed into the annular groove. Then, after dispensing, the powder is scraped out from the annular groove by a predetermined amount by the cutting device, so that the powder is divided into packaging units, and the divided powder is fed into the input hopper of the packaging device.
Further, many of the packaging devices have a lifting mechanism that moves the charging hopper up and down (see, for example, Patent Document 1). The powder is put into the hopper at the lowering position.

Further, the powder dispensing unit cutting device (see, for example, Patent Documents 2 to 4) includes a powder scraping mechanism that is an action part thereof, and a drive mechanism that also serves as a support part of the mechanism, and the powder scraping mechanism. Comprises a rotating disk that rotates in-plane by axial rotation driving of a support shaft that passes through the center of the circle, and a scraping member that is attached to one surface of the rotating disk.
Of such powder scraping mechanisms, the rotating disk is formed of a circular flat plate having a shaft insertion hole or the like, and the lower part fits perfectly into the inner surface of the annular groove of the rotary annular receiving member. When the rotary annular receiving member circulates and rotates, the powder in the annular groove is dammed and collected.

Further, the scraping member is formed of a strip-shaped member, the base end portion is close to the center of the rotating disk, the distal end portion reaches the peripheral edge of the rotating disk, and accompanying the rotation of the rotating disk By turning, the powder that has been dammed in the rotating disk is scraped out from the annular groove to the outside of the annular groove.
In such a powder scraping mechanism, one rotating disk is equipped with one scraping member (for example, see Patent Documents 2 and 3), or two scraping members on one rotating disk (For example, refer to Patent Document 4).

JP 2000-175990 A Japanese Patent Laid-Open No. 07-80043 [FIG. 3] JP 2001-97532 A [FIG. 2 (c)] JP 2011-011814 A [FIG. 1]

Even with such powder dispensing machines, as with other automatic dispensing machines, an improvement in processing speed is required. To meet this demand, it is not enough to increase the speed of the packaging device and shorten the packaging cycle. Therefore, it is necessary to increase the speed of the powder scraping mechanism and shorten the powder scraping cycle. Then, what is directly thought of as a method for shortening the powder scraping cycle is to increase the rotational speed of the rotating disk, and hence the turning speed of the scraping member.
However, if the rotational speed of the rotating disk and the turning speed of the scraping member are increased from those of the current machine, the peripheral speed of the rotating disk, that is, the circulation speed of the peripheral edge of the rotating disk increases, and the tip of the scraping member Since the speed increases, the following inconvenience occurs.

  That is, since the tip of the scraping member contacts the inner surface of the annular groove of the rotary annular receiving member when the powder is divided, if the speed of the tip of the scraping member is higher than before, the contact resistance is greatly elastic at the time of contact. Since the deformed scraping member returns to its original shape quickly at the end of contact, the powder scraping speed of the scraping member increases at a rate greater than the rate of increase of the rotational speed of the rotating disk, so that the rotary ring Since the powder expelled from the annular groove of the receiving member toward the charging hopper soars violently, the amount of powder that undesirably goes out of the charging hopper increases rapidly.

  Further, since the peripheral edge of the rotating disk also contacts the inner surface of the annular groove of the rotary annular receiving member when the powder is divided, the rotational speed of the rotating disk is kept within an appropriate range when the rotary annular receiving member is rotated. Is also required. In detail, in a state where the rotating disk is not rotated at all, a state where the rotating disk is rotated at a low speed, or a state where the rotating disk is rotated at a high speed, the powdered powder is dammed up with the rotating disk. When the rotating annular receiving member is circulated and rotated for collection, the peripheral edge of the rotating disk is more easily damaged than when the rotating disk is simultaneously rotated at a suitable speed based on empirical rules obtained through experiments and implementation. There is an inconvenience of becoming.

Therefore, in order to keep the peripheral speeds of the rotary annular receiving member and the rotating disk within a preferable speed range based on empirical rules, and to moderately suppress the speed of the tip of the scraping member, if the rotating disks are the same, It is required to maintain the rotation speed at the current level.
Therefore, it is a technical problem to realize a powder scraping mechanism that shortens the powder scraping cycle without increasing the rotational speed of the rotating disk.

  The powder scraping mechanism of the present invention (Solution means 1) has been devised in order to solve such a problem, and is provided in a powder packaging machine equipped with a rotary annular receiving member in which an annular groove is formed. A powder scraping mechanism for scraping powder from the annular groove, and having a peripheral edge adapted to the inner surface of the annular groove, and damming the powder in the annular groove during the circulation rotation of the rotary annular receiving member A rotating disk and the annular disk disposed on the powder dam side of the rotating disk and rubbing the inner surface of the annular groove at the tip when swiveling in association with in-plane rotation of the rotating disk And three or more scraping members that scrape the powder out of the groove.

  Further, the powder scraping mechanism of the present invention (solving means 2) is the powder scraping mechanism of the above-mentioned solving means 1, and is provided with a pressing plate facing the rotating disk with the scraping member interposed therebetween, The plurality of portions along the scraping member of the pressing plate are all acting portions that extend to the vicinity of the leading end portion of the scraping member to press the damming powder, whereas the pressing plate Of these, any part removed from the scraping member is formed with a notch on the peripheral side, and each of the notches is wider than the annular groove of the rotary annular receiving member.

  Further, the powder medicine packaging machine of the present invention (Solution means 3) comprises a powder scraping mechanism defined by any one of the above solution means 1 and 2, and an input hopper capable of moving up and down. A powdering device comprising: a packaging device that raises the charging hopper to a position where it can be received when powdered powder is scraped from the rotary annular receiving member by a powdering scraping mechanism; The packaging machine is characterized in that the up-and-down movement of the charging hopper has a higher rising speed than a lowering speed.

In such a powder scraping mechanism of the present invention (Solution means 1), three or more scraping members are provided on one rotating disk, so that the rotating disk rotates three times during one rotation. Since the powder can be scraped out from the annular groove more than once, only one or two scraping members are equipped on one rotating disk, so the powder is applied only twice or less during one rotation of the rotating disk. Compared to the conventional product that could not be scraped out from the annular groove, the number of powders scraped out in the same time is increased even if the rotational speed of the rotating disk is kept the same.
Therefore, according to the present invention, it is possible to realize a powder scraping mechanism that shortens the powder scraping cycle without increasing the rotational speed of the rotating disk.

Further, in the powder scraping mechanism of the present invention (Solution means 2), by providing the pressing plate, the powder blocked by the rotating disk is pressed from the opposite side by the action portion of the pressing plate, It is possible to prevent the damming powder from collapsing at the time of scraping and a part of the damping powder from overflowing from the scraping member and staying in the annular groove, so that the amount of powder sprayed out is stabilized.
On the other hand, by forming a notch wider than the annular groove between the adjacent working parts, while the annular groove is within the width of any notch, it rotates while rotating the powder scraping mechanism Even if the type annular receiving member is rotated, the powder in the annular groove passes through the notch without being obstructed by the pressing plate and goes to the rotating disk, so that the powder can be dammed without any inconvenience.
Therefore, according to the present invention, it is possible to realize a powder scraping mechanism that can accurately cut out powder even if the number of the scraping members is three or more and the powder scraping cycle is shortened.

Further, in the powder medicine packaging machine of the present invention (Solution means 3), when the charged hopper is lowered in order to feed the charged powder into the wrapping paper, the hopper lowering speed is set so that the held powder rises and does not escape Although it is moderately suppressed, there is no inconvenience such as soaking up the powder when raising the empty charging hopper to receive the scraped powder, so the hopper rising speed is faster than the hopper lowering speed, so the rising time Is shortened. Thereby, the packaging cycle of the packaging device can be shortened without undesirably increasing the dissipation of powder.
Therefore, according to the present invention, it is possible to realize a powder dispensing machine in which the processing cycle of both the powder scraping mechanism and the packaging device is shortened and the packaging is performed at high speed.

About Example 1 of this invention, the structure of a powder rake mechanism and a powder wrapping machine provided with the same is shown, (a) is a top view of a powder wrapping machine, (b) is the side of the principal part containing a powder rake mechanism (C) is a side view of a powder rake mechanism, (d) is a perspective view of a powder rake mechanism. It is an expansion | deployment perspective view of a powder scraping mechanism. The operating state of the powder dispensing machine and its powder scraping mechanism, etc. is shown, (a) is a perspective view where powder is distributed from the powder feeder to the rotary annular receiving member, and (b) is the cutting immediately after powder distribution is completed. Side view of dispensing device, rotary annular receiving member and charging hopper, (c) is a side view of cutting device, rotating annular receiving member and charging hopper at the start of powder splitting, (d) is a powder weir during powder splitting Perspective view of powder scraping mechanism and rotary annular receiving member at stopping, (e) is a side view of the cutting device, rotary annular receiving member and charging hopper at the time of scraping during powder division, (f) is powder dividing It is a side view of a cutting device, a rotary annular receiving member, and a feeding hopper at the end of scraping.

About the powder scraping mechanism and powder powder packaging machine of such this invention, the specific form for implementing this is demonstrated by the following Example 1. FIG.
The first embodiment shown in FIGS. 1 to 3 embodies all the above-described solving means 1 to 3 (claims 1 to 3 at the beginning of the application).
In these drawings, for simplification and the like, engaging portions such as positioning holes, fasteners such as bolts, coupling tools such as hinges, drive sources such as electric motors, transmission members such as timing belts, motors, etc. Electrical circuits such as drivers and electronic circuits such as controllers are not shown in the drawings, and those necessary and related to the explanation of the invention are mainly illustrated.

  A specific configuration of the powder scraping mechanism and powder packaging machine according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1A is a plan view of a powder dispenser 10, FIG. 1B is a side view of the main part of the powder dispenser 10 including a cutting device 20, and FIG. 1C is a powder scraping mechanism of the cutting device 20. The side view of 22-25, (d) is a perspective view of the powder scraping mechanism 22-25. FIG. 2 is a developed perspective view of the powder scraping mechanism 22-25.

  This powder wrapping machine 10 (see FIGS. 1 (a) and 1 (b)) includes a housing 11, powder distribution units 12 to 14, a powder feeder 15 (powder supply unit) and a cutting device 20 (scraper, It is a mainstream so-called R-groove turntable type (see, for example, Patent Documents 2 to 4), and includes a powder feeder under the control of the control device. The powder is evenly distributed on the annular groove 12a of the rotary annular receiving member 12 of the powder distribution portions 12 to 14 from 15 and then the powder is scraped out from the annular groove 12a by a predetermined amount by the cutting device 20 to collect the powder. The powdered medicine is divided and packaged with a wrapping paper by the packaging device 30 while being divided into pieces. Hereinafter, each part will be described in detail.

  The powder distribution parts 12 to 14 (see FIGS. 1 (a) and 1 (b)) may be known ones, so briefly described. A rotary annular receiving member employing a turntable having an annular groove 12a (annular saucer). 12 (R disk, annular table), a dust collection head 13 positioned immediately above the annular groove 12a, and a table drive motor 14 for circulating and rotating the rotary annular receiving member 12 are provided. 11 is provided on the upper surface portion. The powder feeder 15 (see FIGS. 1 (a) and 1 (b)) may also be a known one. To put it briefly, the powder powder collectively contained in the container part is sent out little by little while changing the quantity or changing the amount. Although it is made to discharge | release from the powder delivery part 15a (trough) and the vibration feeder is used abundantly, the thing of another sequential delivery system may be used.

The cutting device 20 (see FIGS. 1 (a) and 1 (b)) encloses the powder to be charged into the charging hopper 31 (medicine charging port) of the packaging device 30 from the annular groove 12 a of the rotary annular receiving member 12. In order to cut out by minutes, the powder scraping mechanisms 22 to 25 which are the working portions of the rotary scraping type cutting device and the drive mechanism 21 which also serves as the support portion are provided. This drive mechanism 21 is also configured to drive up and down in addition to the rotational drive of the powder scraping mechanisms 22 to 25.
The powdering scraping mechanisms 22 to 25 (see FIGS. 1 and 2) are a rotating disk 22, a scraping member support 23, a scraping member 24, and a pressing plate 25 assembled in a wheel shape, and its center The shaft extending from the drive mechanism 21 passes through the shaft and is rotated by the rotation of the shaft.

  Of this powder scraping mechanism, the rotating disk 22 (damming member) is integrated by combining a peripheral portion 22b made of resin or the like with a central portion 22a formed round from a relatively rigid flat plate material. Since the outer diameter is the same as the inner diameter of the annular groove 12 a of the rotary annular receiving member 12, when the powder scraping mechanisms 22 to 25 are lowered, the center part 22 a of the rotating disk 22 comes to the lower side. When the portion that is fitted fits perfectly into the inner surface of the annular groove 12a of the rotary annular receiving member 12, and the powder scraping mechanisms 22 to 25 are further rotated, the rotary disk 22 rotates in-plane and the peripheral edge portion 22b rotates. The inner surface of the annular groove 12a of the annular receiving member is rubbed. Further, when the rotary annular receiving member 12 is circulated and rotated in this state, the powder in the annular groove 12a of the rotary annular receiving member 12 is transferred to one side of the rotating disk 22 toward the powder. They are dammed up and collected.

  The scraping member support portion 23 is formed in a small-diameter and thick disc shape, and is provided with cuts 23a at three positions on the peripheral edge, which is not essential, but includes unnecessary unnecessary meat on the inside. It is not provided and is disposed on the powder dam side of the rotating disk 22. The notch 23a is formed at a peripheral portion of every 120 ° obtained by dividing a peripheral portion of 360 ° around the circumference into three equal parts.

  The scraping member 24 is a strip-shaped member having the same thickness and width as the scraping member support portion 23, and is equipped with the same three as the number of the notches 23a. The distal end portion 24a that rubs the inner side of the annular groove 12a of the rotary annular receiving member 12 is made of resin or the like, and is fixed to one end side of the intermediate portion 24b, and the base end portion 24c that corresponds to the other end side of the intermediate portion 24b is formed. By being fitted into the notches 23a, the scraper member support portion 23 is attached, and the rotary disc 22 is attached to the powder damming side. It is arranged side by side with the outermost periphery of the rotating disk 22. When the powder scraping mechanisms 22 to 25 are driven to rotate, they rotate in accordance with the in-plane rotation (spinning motion) of the rotating disk 22 and the scraping member support portion 23, and at that time, at the base end portion 24 c. By rubbing the inner surface of the annular groove 12a of the rotary annular receiving member 12, the powder is scraped from the annular groove 12a.

  The holding plate 25 is a flat plate member made of a plate material having relatively high rigidity similar to the central portion 22a of the rotating disc 22, and the peripheral portion from the circular plate of the central portion 22a is in three places in a spindle shape and an arch shape. It has a shape like a thick Y-shaped or three-pronged notch, and the three portions extending radially to the peripheral portion with different radial directions by 120 ° are action portions 25a for preventing the breakage of the damming powder. The notches 25b are positioned one by one between the adjacent working portions 25a and 25a. Each of the three notches 25b has a width W2 (see FIG. 1 (d)) wider than a width W1 (see FIG. 1 (a)) of the annular groove 12a of the rotary annular receiving member 12. Further, since the outer diameter of the action portion 25 a is slightly smaller than the outer diameter of the rotating disk 22, the pressing plate 25 does not rub the annular groove 12 a of the rotary annular receiving member 12.

  The pressing plate 25, the three scraping members 24, the scraping member support portion 23, and the rotating disk 22 are combined to form the powder scraping mechanisms 22 to 25 (see FIG. 1D). For example, the rotating disk 22 is mounted on one side of the scraping member support portion 23, the three scraping members 24 are mounted on the scraping member support portion 23, and the pressing plate 25 is mounted on the other surface of the scraping member support portion 23. At this time, the centers of the rotating disk 22, the scraping member support portion 23, and the pressing plate 25 are aligned on a straight line through which the support shaft can be inserted, and the scraping member 24 overlaps the action portion 25a. The powder scraping mechanisms 22 to 25 are aligned, and the rotary disk 22 and the pressing plate 25 face each other with the scraping members 24, 24, 24 interposed therebetween, and the action portion 25 a of the pressing plate 25 is any. In order to hold the damming powder, it extends along the scraping member 24 to the vicinity of the most distal end of the tip 24a, and a notch 25b is formed on the peripheral side of three portions of the pressing plate 25 that are separated from the scraping member 24. Will be.

The control device (not shown) is composed of an electronic circuit such as a programmable computer or a microprocessor system, and controls the operation of each part 15, 20, and 30 of the powder medicine packaging machine 10 according to a program. In addition to hardware, Since most of the software follows the conventional software (see, for example, Patent Documents 1 to 4), the improved part will be described.
Although the rotation control of the powder scraping mechanisms 22 to 25 and the elevation control of the charging hopper 31 have been improved, the former rotation control will be described here, and the latter elevation control will be described later.

  At the time of dispensing the powder to the annular groove 12a of the rotary annular receiving member 12, the powder scraping mechanisms 22 to 25 are floated above the rotary annular receiving member 12, and then the powder is annularly removed by a predetermined amount by the cutting device 20. When carrying out the powder division which scrapes out from the groove | channel 12a, first, the powder scraping mechanisms 22-25 are lowered | hung to the annular groove 12a of the rotary annular receiving member 12, At that time, the annular groove 12a of the width W1 of the rotary annular receiving member 12 Is controlled in advance so as to adjust the rotational angles of the powder scraping mechanisms 22 to 25 so as to fit within the notch width W2 of any one of the three notches 25b of the pressing plate 25. Then, the rotary annular receiving member 12 that cuts out the collected powder and sends it to the packaging device 30 while rotating (rotating) the powder scraping mechanisms 22 to 25 to collect a predetermined amount of powder on one side of the rotating disk 22. Before the control is performed, the control amount necessary for the control is obtained from the number of divisions, the number of divisions, etc. by arithmetic operation or the like.

  Specifically, the amount of rotation of the rotary annular receiving member 12 necessary to cut out the powder for one package is determined, and then both the rotary annular receiving member 12 and the rotating disc 22 are rotated simultaneously. The scraping member required to cut out the powder of one package in addition to the rotational speeds of the rotary annular receiving member 12 and the rotating disc 22 under the condition that the rotational speed of the rotary is within the preferable speed range based on the rule of thumb The number of scrapings at 24 and the rotational speed of the rotating disk 22 are determined, but the rotational speed of the rotating disk 22 required for one scraping is one third of the number divided by the number of scraping members 24. Therefore, when the number of divisions / packaging is large, which is when the effect of the powder scraping cycle is large compared to when it is one or half rotation, not only the division processing cycle is shortened, but also the preferred speed Maximum number of divisions / packets that can be cut out with There has been become a thing that has increased.

  The packaging device 30 (see FIGS. 1 (a) and 1 (b)) divides and wraps powdered powder that has been input via the input hopper 31 with unillustrated wrapping paper or the like, and the vertical movement speed of the input hopper 31. (For example, refer to Patent Documents 1 to 5), for example, a wrapping sheet feeding unit that feeds the wrapping paper in order along the feeding path of the wrapping paper, and printing on the wrapping paper. A printer to be performed, a vertical seal member for partitioning the wrapping paper by heat fusion, an input hopper 31 that moves up and down to feed the powder into the wrapping paper section, and a horizontal seal for sealing the wrapping paper section It has members.

  And this packaging apparatus 30 raises the injection | throwing-in hopper 31 to the position which can receive powdered powder from the rotary annular receiving member 12 by the powdery scraping mechanisms 22-25, At the time of packaging for sending powder to one section, the charging hopper 31 is lowered. However, the raising / lowering operation of the charging hopper 31 is controlled by improving the control device so that the rising speed is higher than the lowering speed. It is like that. In addition to the improvement of the control device, such a modification related to the raising / lowering operation can be realized by modifying a stepping motor or a cam mechanism for raising / lowering driving.

  About the powder medicine packaging machine 10 of this Example 1, the powder scraping mechanism 22-25 equipped in it, etc., the usage mode and operation | movement are demonstrated referring drawings.

  3A is a perspective view of the powder 40 being distributed from the powder feeder 15 to the rotary annular receiving member 12, and FIG. 3B is the powder scraping mechanism 22 of the cutting device 20 immediately after the powder distribution is completed. FIG. 25 is a side view of the charging hopper 31 of the rotary annular receiving member 12 and the packaging device 30, and FIG. 10C is a side view of the powder scraping mechanism 22 to 25, the rotary annular receiving member 12, and the charging hopper 31 at the start of powder splitting. FIG. 4D is a perspective view of the powder scraping mechanisms 22 to 25 and the rotary annular receiving member 12 at the time of powder damming during powder splitting, and FIG. 5E is a powder scraping mechanism 22 at the time of powder scraping during powder splitting. -25, a side view of the rotary annular receiving member 12 and the charging hopper 31, (f) is a side view of the powder scraping mechanism 22-25, the rotary annular receiving member 12 and the charging hopper 31 at the end of the scraping during powder division. It is.

  When all the powders 40 to be packaged are put into the powder feeder 15 and data such as the number of packages is manually set in the control device and then the powder distribution machine 10 starts the packaging operation, When the packaging operation is started after the control device automatically obtains the prescription data that can be understood, the rotation angle of the rotary annular receiving member 12 required to cut out the powder 40 for one package, the rotary annular receiving member 12 and the rotation The rotational speed of the disk 22 is determined by the control device, and the number of times of scraping by the scraping member 24 and the number of rotations of the rotating disk 22 in the cutting cycle of the powder 40 for one package are also determined. Since the scraping member 24 is three, the rotational speed of the rotating disk 22 is an integral multiple of 1/3.

  Under the control of the control device (see FIG. 3A), first, the rotary annular receiving member 12 circulates and rotates, and the powder feeder 15 releases the powder 40 from the powder delivery part 15a little by little. Since it is fed into the annular groove 12a of the annular ring receiving member 12, the total amount of powder 40 to be packaged is distributed in the annular groove 12a of the rotary annular receiving member 12 and distributed almost uniformly over the entire circumference of the annular groove 12a. . At the time of this powder distribution, the powder scraping mechanisms 22 to 25 are raised to the point where they do not interfere with the rotary annular receiving member 12 and the powder 40 (see FIG. 3B).

  In addition, before or during the transition to the next division (see FIG. 3 (b)), any one of the three notches 25b of the pressing plate 25 of the powder scraping mechanisms 22 to 25 is a rotary annular receiver. The member 12 comes above the annular groove 12a of the member 12, and the annular groove width W1 is accommodated below the notch width W2 near the closing hopper 31. When the powder scraping mechanism 22 to 25 is lowered and the lower portion of the rotating disk 22 enters the annular groove 12a of the rotary annular receiving member 12 (see FIG. 3C), the powder scraping mechanism 22 is used. The initial posture and the basic posture of the powdered division for scraping the powdered powder 40 from the rotary annular receiving member 12 are adjusted at ˜25. Furthermore, in order to receive the powder 40 to be scraped out, the charging hopper 31 of the packaging device 30 is raised to the receiving position at high speed.

  Then, the rotary annular receiving member 12 and the powder scraping mechanisms 22 to 25 rotate at a suitable speed based on empirical rules, and the powder division starts (see FIG. 3D). While the annular groove width W1 is within the notch width W2, the powder 40 passes through the notch 25b of the presser plate 25 and is brought close to the presser plate 25 side of both surfaces of the rotating disc 22 and quickly gathers. When the powder scraping mechanism 22 to 25 is rotated and the action portion 25a of the pressing plate 25 enters the annular groove 12a, the powder 40 is divided into a scraped portion and a portion that is not in the annular groove 12a. When the rotation of the mechanisms 22 to 25 advances and the scraping member 24 advances while rubbing the inner surface of the annular groove 12a (see FIG. 3E), the powder 40 cut into the scraped portion by the pressing plate 25 is scraped. Is scraped from the rotary annular receiving member 12 and fed into the feeding hopper 31.

Further, when the powder scraping mechanism 22 to 25 is further rotated and the scraping member 24 is rotated by 1/3 of the powder scraping mechanism 22 to 25 (see FIG. 3F), the scraping member 24 is removed from the annular groove 12a. As a result, the scraping is interrupted, and the charging of the powder 40 for one scraping into the charging hopper 31 is completed.
In this way, a single powder scraping cycle is performed. Even if the powder 40 in the scraped portion is dammed and accumulated by the rotating disk 22, one action portion 25 a of the holding plate 25 and the lower side of the rotating disk 22. Since it is sandwiched between parts and does not collapse, an accurate amount of powder 40 is scraped. Further, since the speed of the peripheral portion 22b of the rotating disc 22 and the speed of the tip portion 24a of the scraping member 24 belong to a preferable speed range based on empirical rules, the rotating disc 22 lasts longer and is scraped off. An accurate amount of powder 40 with little dissipation of powder 40 is charged into the charging hopper 31.

  Then, when such a powder scraping cycle (see FIGS. 3D to 3F) is repeated for the calculated number of times of scraping, a cutting cycle of powder 40 for one package (powder that is a split operation for one package) 1 cycle of division is completed, but while the next cutting cycle remains, the rotary annular receiving member 12 and the powder scraping mechanism 22 to 25 are empirically used for powder division of the next package. Continue to scrape and cut out at the preferred speed based on. In parallel with this, after completion of the cutting cycle, the charging hopper 31 descends (see FIG. 3 (f)), but since the descending speed is slower than the ascending speed, the powder 40 charged into the charging hopper 31 is All are delivered to the wrapping paper without flying up and dissipated, and are categorized and enclosed in the wrapping paper by the packaging device 30. The empty hopper 31 is raised at a high speed (see FIG. 3C), and quickly while the powder scraping mechanisms 22 to 25 collect the powder 40 (see FIG. 3D). Complete the ascent and prepare for receipt of the next divided powder (see FIG. 3 (e)).

  In this way, when the powder splitting by the rotary annular receiving member 12 and the cutting device 20 and the division sealing by the packaging device 30 are repeated by the number of times of the number of packings, all the powder 40 charged into the powder feeder 15 is obtained. The powder dispensing machine 10 is provided with three scraping members 24 more than the conventional ones in the powder scraping mechanisms 22 to 25 of the cutting device 20, so that the powder scraping mechanism 22 to Even if the rotational speed of 25 remains the same as before, the scraping cycle of the powder 40 can be shortened. Therefore, if the speed of the packaging device 30 is increased, the processing speed of the powder packaging machine 10 can be increased immediately.

  In particular, since the number of packages is large and the time for which the rotary annular receiving member 12 rotates at a suitable speed for the rotation angle of one package is shortened, the rotational speed of the rotary annular receiving member 12 is close to the lower limit of the preferred speed range. In such a case, the powder scraping cycle has been shortened, so that the rotational speed of the rotary annular receiving member 12 can be increased within a preferable speed range, so that the advantage of immediately increasing the processing speed can be obtained. You can enjoy it. Further, the maximum number of packages is determined by the minimum speed of the rotary annular receiving member 12 belonging to the preferred speed range based on the rule of thumb, the maximum speed of the powder scraping mechanisms 22 to 25, and the number of the scraping members 24. There is a further advantage that the maximum number of packages is increased.

[Others]
In the powder scraping mechanisms 22 to 25 of the above embodiment, the scraping member 24, the action portion 25a, and the notch 25b are provided for each of the three rotating disks 22, but the annular groove width W1 and the notch width are provided. If the condition such as the magnitude relationship with W2 is satisfied, the number may be four.
In the above embodiment, a single control device performs centralized control of the operation of all mechanisms. However, a plurality of control devices may be provided for distributed control.

  The powder scraping mechanism and powder dispenser of the present invention are not limited to the powder dispenser of the powder-only / single distribution division unit mentioned in the above embodiment, but a combination of a tablet dispenser and a powder dispenser The present invention can also be applied to a separate packaging machine (see, for example, Patent Document 1) and a packaging machine equipped with a plurality of powder distribution division units (see, for example, Patent Document 2).

10 ... powder wrapping machine, 11 ... housing, 12-14 ... powder distribution part,
12 ... Rotary annular receiving member (R disk, annular table), 12a ... Circular groove (annular saucer),
13 ... Dust collection head, 14 ... Table drive motor,
15 ... powder feeder (powder supply part), 15a ... powder delivery part (trough),
20 ... cutting device (scraper, powder dividing part), 21 ... drive mechanism (cutting device support part),
22-25 ... Powdered powder scraping mechanism (cutting device action part),
22 ... Rotating disk (damming member), 22a ... Central part, 22b ... Peripheral part,
23 ... scraping member support, 23a ... notch,
24 ... scraping member, 24a ... tip portion, 24b ... intermediate portion, 24c ... proximal end portion,
DESCRIPTION OF SYMBOLS 25 ... Holding plate, 25a ... Action part, 25b ... Notch 30 ... Packaging apparatus, 31 ... Input hopper (medicine input port), 40 ... Powder

Claims (2)

A powder scraping mechanism that is mounted on a powder packaging machine having a rotary annular receiving member formed with an annular groove and scrapes the powder out of the annular groove, and has a peripheral edge adapted to the inner surface of the annular groove. A rotating disk that dams up the powder in the annular groove during circulation rotation of the rotary annular receiving member, and is disposed on the powder dam side of the rotating disk and accompanies in-plane rotation of the rotating disk. and three or more raking member scraping the powdered medicine from said annular groove by rubbing the inner surface of the annular groove at the distal portion when pivoted by the presser plate opposed to said rotating disk across the scooping member The plurality of portions along the scraping member of the pressing plate are all acting portions that extend to the vicinity of the leading end of the scraping member so as to press the damming powder. On the other hand, a portion of the presser plate that is detached from the scraping member Both are arcuate notches formed at the peripheral side, the cut may be wider than the width (W1) of the annular groove of the peripheral side of the width (W2) both said rotary annular receiving member It characterized the distributed medicine scrape mechanism. The powder scraping mechanism according to claim 1 and a charging hopper capable of moving up and down, and when powder powder is scraped from the rotary annular receiving member by the powder scraping mechanism, to a position where it can be received. A powder packaging machine including a packaging device that raises the charging hopper and lowers the charging hopper during packaging, wherein the vertical movement of the charging hopper is faster than the lowering speed. And powder medicine packaging machine.

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