JP6934167B2 - Granule splitting device - Google Patents

Description

The present invention relates to a powder or granular material dividing device for dividing a powder or granular material such as a powder into a predetermined amount.

Conventionally, a packaging device configured to cut out and package a predetermined amount of powder or granular material such as a powder is known. In this packaging device, an annular concave groove is formed on the upper surface, and a rotary table that can rotate around the vertical axis and powder particles on the annular concave groove by rotating around the horizontal axis that is the center of curvature of the annular concave groove. It is provided with a cutting member for cutting out in the radial direction of the rotary table by scratching, and a partition member which is juxtaposed with respect to the cutting member on the downstream side in the rotation direction of the rotary table and partitions the powder and granules in the circumferential direction. (Patent Document 1). In this packaging device, the rotary table rotates about the vertical axis with respect to the partition member, so that the partition member blocks the powder and the dammed powder is cut out by the cutting member.

The cutting member of this packaging device is composed of a narrow cutting member having a narrow width in the circumferential direction of the rotary table and a wide cutting member having a width wider in the circumferential direction than the narrow cutting member. This packaging device is configured so that the first time is cut out by a narrow cutting member and the second and subsequent times are cut out by a wide cutting member. With this configuration, when the number of divisions of the powder or granular material is large, this packaging device can cut out an appropriate amount without making the first division amount too large, and the second and subsequent times are the same as the first division. It can be cut out to a certain amount.

Japanese Patent No. 5140483

By the way, since the length of the rotary table in the circumferential direction is constant, it is necessary to adjust the rotation angle of the rotary table when changing the number of divisions. That is, when the number of divisions is small, the rotation amount (rotation angle) of the rotary table is large, and when the number of divisions is large, the rotation amount is smaller than in the above case. In the above-mentioned conventional packaging device, since the first time is cut out by a narrow cutting member, the number of divisions is small (the amount of rotation of the rotary table is large), and when the amount of division per time is large, the width of the narrow cutting member is small. Because of the narrowness, it becomes necessary to cut out in multiple times, and the efficiency of cutting out decreases. As described above, the conventional packaging device does not take into consideration the optimum correspondence when the number of divisions is large and the number of divisions is small, and there is room for improvement.

Therefore, in view of such circumstances, it is an object of the present invention to provide a powder or granular material dividing device capable of efficiently cutting out with a wide range of the number of divisions that can be handled.

The powder or granular material dividing device according to the present invention is
A table with an annular groove on which powder or granular material can be placed, and
It is a damming portion that contacts the bottom surface of the annular groove and dams the powder or granular material on the annular groove in the circumferential direction of the table, and is configured to rotate relative to the vertical axis with respect to the table. In addition, a dam portion configured to rotate in the cutting direction, which is one direction around the horizontal axis extending in the direction intersecting the vertical axis, and
A cutout portion adjacent to the downstream side in the rotation direction in the relative rotation of the dam portion and for cutting out the powder or granular material on the annular groove by scratching the powder or granular material in the radial direction of the table. A cutout portion for cutting out the powder or granular material while rotating in the cutout direction together with the portion is provided.
The cutout portion includes a first cutout member and a second cutout member arranged so as to be separated from each other in the circumferential direction around the horizontal axis.
The width of the first cutting member corresponding to the circumferential direction of the table is set based on the length of one circumference of the table in the circumferential direction and the first reference division number set as a predetermined number of divisions.
The width of the second cutting member corresponding to the circumferential direction of the table is set based on the length of one circumference of the table in the circumferential direction and the second reference division number set to be larger than the first reference division number. Has been done.

According to such a configuration, when the number of divisions is large (the rotation angle of the table per division is small) and the number of divisions is small (the rotation angle of the table per division is large), a wide cutting member ( The first cutting member) and the narrow cutting member (second cutting member) can be used properly, and cutting can be performed with an appropriate cutting member according to the number of divisions. Therefore, according to the powder or granular material dividing device having the above configuration, it is possible to flexibly cut out according to the number of divisions.

As described above, since the powder or granular material dividing device having the above configuration can properly use the cutting member according to the number of divisions, it is possible to cope with the case where the number of divisions is small and the case where the number of divisions is large. Good cutting efficiency.

From the above, according to the present invention, it is possible to provide a powder or granular material dividing device capable of efficiently cutting out with a wide range of the number of divisions that can be handled.

It is a top view which shows the schematic structure of the powder or granular material dividing apparatus which concerns on one Embodiment of this invention. It is a front view of the powder / granular material dividing apparatus which concerns on the same embodiment, and is the front view for demonstrating the state which the cutting mechanism is in a cutting posture and the state which is in a separated posture. It is an enlarged front view of the state where the cutting mechanism which concerns on the same embodiment is located at the initial position. It is a partial side view of the powder or granular material dividing device which concerns on the same embodiment. It is a figure for demonstrating the positional relationship of a cutting mechanism and a cleaning part during cleaning. It is a figure for demonstrating the state of the cutting mechanism at the time of multi-division, FIG. (B) is a state in which the cutting mechanism is positioned in the preparatory position in the separated posture, and (c) is before the cutting mechanism is switched from the separated posture to the cutout posture and the table starts to rotate and cut out. The state before the mechanism starts rotation, (d) is the state where the cutting mechanism is located at the narrow cutting start position where the first cutting starts, and (e) is the state during cutting by the narrow cutting member. The state (f) is a state in which the cutting mechanism has completed the first cutting and is located at the initial position, before the table starts rotating for the second cutting, and is cut out. The state before the mechanism starts rotation, (g) is the state where the cutting mechanism is located at the wide cutting start position where the second cutting starts, and (h) is the state where the cutting mechanism performs the second cutting. Completed and in the initial position. It is a figure for demonstrating the state of the cutting mechanism at the time of a small division, FIG. (B) is a state before the cutting mechanism is switched from the separated posture to the cutting posture and the table starts to rotate, and (c) is a state before the cutting mechanism starts to rotate. The state where the first cutting is started is located at the wide cutting start position, (d) is the state during cutting by the wide cutting member, and (e) is the state where the cutting mechanism completes the first cutting. In the state of being located at the initial position, before the table starts rotating for the second cutting and before the cutting mechanism starts rotating, (f) is the state where the cutting mechanism is the second time. It is in a state of being located at the wide cutting start position where the cutting of is started. It is a control flow at the time of multiple division and at the time of minor division. It is a continuation flow of the control flow at the time of multi-division in FIG. This is the control flow of the cleaning unit.

Hereinafter, the powder or granular material dividing device according to the embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, in the powder / granule dividing device 1 according to the embodiment of the present invention, an annular groove 201 in which the powder / granule Q (shown in FIGS. 6 and 7) can be arranged is formed. The table 2 that is rotatable around the vertical axis X and the powder granules Q that are evenly supplied along the annular groove 201 of the table 2 are directed toward the radial direction of the table 2 (outside the radial direction in this embodiment). It is a cutting mechanism 3 for cutting out even amounts, and has a dam 4 for blocking the powder and granules Q on the annular groove 201 and a cutting out portion 5 for cutting out the powder and granules Q on the annular groove 201. A cutout mechanism 3 provided, a first switching unit 7 for switching the posture of the cutting mechanism 3, a cleaning unit 8 for cleaning the table 2 and the cutting mechanism 3, and a second switching unit for switching the posture of the cleaning unit 8. 9, the cutting mechanism 3, the first switching unit 7, the cleaning unit 8, the mounting unit 10 on which the second switching unit 9 is placed, the table 2, the cutting mechanism 3, the first switching unit 7, and the cleaning unit. A control unit (not shown) for controlling the 8 and the second switching unit 9 is provided. A hopper H (see FIG. 2) that receives the cut out powder or granular material Q is arranged on the side of the powder or granular material dividing device 1.

The powder or granular material dividing device 1 is configured such that the table 2 and the cutting mechanism 3 rotate relative to each other around the vertical axis X. The powder or granular material dividing device 1 in the present embodiment intermittently moves the table 2 in one direction (the direction indicated by the arrow R in FIGS. 1 and 2) around the vertical axis X by a driving device (not shown) (table 2). Is configured to rotate (while repeating a rotating state and a stopped state). When the table 2 rotates by a predetermined angle according to the number of divisions and stops, the powder or granular material dividing device 1 cuts out the powder or granular material Q from the annular groove 201 in the outer diameter direction of the table 2 by the cutting mechanism 3. .. As described above, the powder or granular material dividing device 1 of the present embodiment is configured to sequentially cut out the powder or granular material Q by a predetermined region in the circumferential direction of the annular groove 201. The cut out powder or granular material Q is packaged by a packaging device (not shown) for packaging the powder or granular material Q.

The table 2 is configured to rotate intermittently in equal circumferential lengths around the vertical axis X by being driven by a pulse input or the like of a rotary drive motor (not shown). That is, for example, when the powder or granular material Q is divided into 77, the table 2 rotates intermittently every 1/77 of the total circumference. As a result, the powder or granular material Q on the table 2 is evenly divided into 77 pieces, and the powder or granular material Q is divided into 77 pieces by the packing device.

As shown in FIG. 1, the table 2 is formed in an annular shape. The table 2 is made of a thin plate. Table 2 rotates around the vertical axis X with the center line of the ring as the vertical axis X. That is, the vertical axis X extends in the vertical direction (vertical direction). An annular groove 201 is formed on the upper surface of the table 2. The table 2 includes a groove portion 21 in which the annular groove 201 is formed and a flat plate portion 22 in which the annular groove 201 is formed. The annular groove 201 is formed in an arcuate cross section that is convex downward. The groove bottom surface 211 of the annular groove 201 forms a curved surface having a predetermined radius of curvature. However, the annular groove 201 is not limited to the case where it is formed in an arc shape in cross section, and is formed so that the mounting surface (groove bottom surface 211) of the powder or granular material Q has another cross-sectional shape such as a flat surface or an elliptical shape. You may.

In the present embodiment, the groove portion 21 is located on the outer peripheral edge side of the table 2, and the flat plate portion 22 is located on the inner peripheral edge side of the table 2. The downstream edge 213 of the annular groove 201 on the downstream side of the cutting direction by the cutting mechanism 3 (the cutting direction is the direction indicated by the arrow S in FIG. 2) constitutes the outer peripheral edge of the table 2 (matches). ing). Further, the upstream end edge 212 of the annular groove 201 on the upstream side in the cutting direction is continuous with the flat plate portion 22.

As shown in FIGS. 2 and 3, the cutting mechanism 3 includes a blocking portion 4 that contacts the groove bottom surface 211 of the annular groove 201 and dams the powder or granular material Q on the annular groove 201 in the circumferential direction of the table 2. A cutout portion 5 for cutting out the powder or granular material Q on the annular groove 201 by scratching it in the radial direction of the table 2, and a rotation direction of the table 2 (direction indicated by an arrow R in FIG. 1) at the time of cutting out. On the upstream side (hereinafter referred to as the division direction R), there is a cover body 6 that defines the cutout amount of the powder or granular material Q together with the dam portion 4. As shown in FIG. 2, the cutting mechanism 3 has a cutting posture C (the posture shown by the solid line in FIG. 2) in which the dam 4 contacts the groove bottom 211 of the annular groove 201, and the dam 4 is the groove bottom 211. It is configured to be switchable to a separation posture T (the posture of the two-dot chain line in FIG. 2) separated from the above. The dammed portion 4, the cutout portion 5, and the cover body 6 are provided separately. The dam 4, the cut 5 and the cover 6 are integrally moved (rotated) by arranging the cover 6, the cut 5 and the dam 4 in this order from the upstream side in the dividing direction. It is assembled to do. The integrated dam 4, cutout 5, and cover 6 rotate around a horizontal axis Y extending in a direction intersecting the vertical axis X. Further, the integrated dam portion 4, the cutout portion 5, and the cover body 6 rotate in the cutout direction S, which is one direction around the horizontal axis Y, to obtain the powder or granular material Q on the table 2. It is configured to cut out. The cutting mechanism 3 configured as described above has at least one of the cutting portion 5 (specifically, the wide cutting member 51 and the narrow cutting member 52 described later) while the dam 4 makes one rotation. On the other hand, it is configured to cut out once.

The dammed portion 4 is formed in a plate shape. The dammed portion 4 of the present embodiment is formed in an annular shape when viewed from the front. In the present embodiment, the center line of the ring of the dammed portion 4 is the horizontal axis Y. That is, the horizontal axis Y extends in the left-right direction (horizontal direction) of FIG. The dammed portion 4 is connected to the first switching portion 7 via a connecting shaft P (see also FIG. 4), and moves up and down according to the vertical movement of the first switching portion 7. By moving the first switching unit 7 up and down, the cutting mechanism 3 is switched between the separation posture T and the cutting posture C. In the present embodiment, the connecting shaft P is inserted into the central hole of the dammed portion 4, and the cutting mechanism 3 has the connecting shaft P as the horizontal axis Y and the cutting direction S centering on the connecting shaft P. It is configured to rotate to.

As shown in FIGS. 3 and 4, when the powder / granular material Q is cut out, the cutout portion 5 pulls the powder / granular material Q blocked by the dammed portion 4 from the groove bottom surface 211 of the annular groove 201. It is for scraping and cutting out with respect to the hopper H (see FIG. 2) arranged on the side (outward diameter direction) of the table 2. The cutout portion 5 is arranged adjacent to the downstream side in the rotation direction in the relative rotation of the dammed portion 4. The cutout portion 5 is configured to cut out the powder or granular material Q while rotating in the cutout direction S together with the dammed portion 4. The cutout portion 5 is a wide cutout member 51 which is a first cutout member 51 and a narrow cutout member 52 which is a second cutout member 52 arranged so as to be separated in the circumferential direction around the horizontal axis Y. And. The width W1 corresponding to the circumferential direction of the table 2 of the wide cutting member 51 is set based on the length of one circumference of the table 2 in the circumferential direction and the first reference division number set as a predetermined number of divisions. Further, the width W2 corresponding to the circumferential direction of the table 2 of the narrow cutting member 52 is based on the length of one circumference of the table 2 in the circumferential direction and the second reference division number set more than the first reference division number. Is set. That is, in the cutout portion 5, the width corresponding to the circumferential direction of the table 2 is set to a predetermined width, and the width corresponding to the circumferential direction is narrower than the width of the wide cutout member 51. A narrow cutting member 52 is provided. The cutout portion 5 of the present embodiment further includes a fixing portion 53 for fixing the wide cutout member 51 and the narrow cutout member 52. In the cutting portion 5, the wide cutting member 51 and the narrow cutting member 52 cut out the powder or granular material Q blocked in the annular groove 201 by the dam 4 due to the relative rotation of the table 2 and the cutting mechanism 3. It is configured to cut out at least one of them. In the present embodiment, the cutting portion 5 is configured to cut out the powder or granular material Q in the region in the annular groove 201 corresponding to the specified number of divisions in one or a plurality of times. The designated number of divisions is a number of divisions set based on the patient's prescription information. The designated number of divisions may be automatically designated (input) based on the patient's prescription information, or may be designated (input) by an operator such as a pharmacist based on the patient's prescription information.

When the designated number of divisions is greater than the number of first reference divisions and equal to or less than the number of second reference divisions, the cutting portion 5 is controlled so that the first time is cut out by the narrow cutting member 52. In the present embodiment, the case where the designated number of divisions is larger than the number of the first reference divisions and is equal to or less than the number of the second reference divisions is defined as the time of multiple divisions, and the case where the number of designated divisions is equal to or less than the number of the first reference divisions is defined as the number of minor divisions. Time. The term “multi-division” is defined as a case where the cutout portion 5 is divided into a number exceeding the maximum number of divisions determined by the dimension of one circumference of the annular groove 201 of the table 2 in the circumferential direction and the width dimension of the wide cutout member 51. You can also do it. Further, the time of small division can be defined as the case where the number of divisions is smaller than that of the time of multiple division. The cutting portion 5 is controlled so as to cut out the first time by the narrow cutting member 52 and the second and subsequent times by the wide cutting member 51 at the time of multiple division. Further, the cutout portion 5 is controlled so as to be cut out by the wide cutting member 51 from the first round to the final round at the time of small division. In the present embodiment, at the time of minor division, at the time of the first minor division in which the division exceeds the reference minor division number based on a predetermined number of divisions (hereinafter referred to as the reference minor division number), and at the time of the first minor division. It is composed of the second minor division, which has a smaller number of divisions. The cutting portion 5 cuts out a predetermined amount of powder or granular material Q by rotating once in the cutting direction S at the time of multi-division and the first small division. Further, the cutting portion 5 cuts out a predetermined amount of powder or granular material Q by rotating in the cutting direction S a plurality of times at the time of the second small division.

In the present embodiment, during the relative rotation between the table 2 and the cutting mechanism 3, the dam 4 and the cutting portion 5 have a narrow cutting member 52 at the downstream end of the annular groove 201 on the downstream side in the cutting direction. Cutting from the initial position P1 located near the edge 213 to the wide cutting start position P4 where the wide cutting member 51 approaches the upstream end edge 212 of the annular groove 201 on the upstream side in the cutting direction and starts cutting. It is controlled to rotate in the direction S (see FIGS. 6 and 7). Further, during the relative rotation between the table 2 and the cutting mechanism 3, the damming portion 4 and the cutting portion 5 have the narrow cutting member 52 on the upstream end edge 212 of the annular groove 201 on the upstream side in the cutting direction. It is controlled to rotate in the cutting direction S from the approaching preparation position P2 to the narrow cutting start position P3 where the narrow cutting member 52 starts cutting the powder or granular material Q (see FIG. 6).

The wide cutting member 51 is provided on the upstream side surface of the dammed portion 4 in the dividing direction R. The wide cutting member 51 is formed to be long. The wide cutting member 51 has a wide cutting body 511 for cutting out the powder or granular material Q and a wide elastic blade 512 configured to be elastically deformed. The wide cutout main body 511 has a base end portion fixed to the fixing portion 53 and a tip end portion extending from the fixing portion 53. The wide elastic blade 512 is fixed to the wide cutting body 511 and is integrally formed with the wide cutting body 511. The wide elastic blade 512 is formed with a length such that the tip thereof slightly protrudes from the dammed portion 4 in the out-of-diameter direction of the dammed portion 4. As a result, the wide elastic blade 512 elastically deforms when the powder or granular material Q is scraped from the table 2, comes into contact with the groove bottom surface 211 of the annular groove 201, and scrapes (cuts out) the powder or granular material Q without leaving the powder or granular material Q on the table 2. ) It is possible. Further, the wide elastic blade 512 is formed in a plate shape with the tip cut at an acute angle, and the tip is more easily deformed elastically. Further, the tip of the wide elastic blade 512 is cut so as to form an inclined surface inclined with respect to the cutting direction S.

The width W1 (see FIG. 4) corresponding to the circumferential direction of the table 2 in the wide cutting member 51 (hereinafter, may be referred to as “width W1 of the wide cutting member 51”) is previously set in the powder or granular material dividing device 1. It is set according to the set number of divisions of the powder or granular material Q (first reference division number). The maximum number of divisions determined by the circumferential dimension of the annular groove 201 and the width dimension of the wide cutting member 51 is the maximum number of divisions that can be divided by the wide cutting member 51, and the division exceeds the maximum number of divisions. The case is defined as a multi-division time, and the case where the number of divisions is smaller than that of the multi-division time is defined as a small division time. Specifically, the width W1 of the wide cutting member 51 is set based on the length of one circumference in the circumferential direction at the groove center of the annular groove 201 of the table 2, and the wide cutting member 51 wants to divide the width W1 to the maximum extent. It is a value determined based on the reference number of divisions (that is, the maximum number of divisions). Specifically, the width W1 of the wide cutting member 51 is a value obtained by dividing the circumferential length of the annular groove 201 of the table 2 at the groove center by the first reference division number. The width W1 of the wide cutting member 51 is set to be slightly smaller than the value obtained by dividing the circumferential length by the first reference division number in consideration of manufacturing errors. That is, the width W1 of the wide cutting member 51 is smaller than the rotation width (rotation distance) in the circumferential direction of the table 2 with respect to the groove center when the wide cutting member 51 is divided by the first reference division number, and the ring shape of the table 2 is formed. It is set so as to be close to the value obtained by dividing the circumferential length of the groove 201 at the center of the groove by the number of first reference divisions.

In the present embodiment, the powder or granular material Q arranged in the annular groove 201 is cut out and the first reference division number is set to 93 so as to be wide so that one month's worth (3 packets per day x 31 days) can be divided. The width W1 of the cutting member 51 is set. That is, the maximum number of divisions is 93, the case where the division exceeds 93 is defined as the multi-division time, and the case where the division is performed at 93 or less is defined as the minor division time. Since the width W1 of the wide cutting member 51 is set as wide as possible so that the powder or granular material Q on the annular groove 201 can be divided into 93, the wide cutting member 51 has 93 divisions of the powder or granular material Q. Even when the following is the case, the powder or granular material Q can be efficiently cut out.

Like the wide cutting member 51, the narrow cutting member 52 is provided on the upstream side surface of the dammed portion 4 in the dividing direction R. The narrow cutting member 52 is formed to be long and is arranged so as to avoid the center of the dam 4 (so as not to pass through the center of the dam 4). The narrow cutting member 52 has a narrow cutting main body 521 for cutting out the powder or granular material Q and a narrow elastic blade 522 configured to be elastically deformed. The narrow cutout main body 521 has a base end portion fixed to the fixing portion 53 and a tip end portion extending from the fixing portion 53. The narrow elastic blade 522 is fixed to the narrow cutting body 521 and is integrally formed with the narrow cutting body 521. The narrow elastic blade 522 is formed with a length such that the tip thereof slightly protrudes from the dammed portion 4 in the out-of-diameter direction of the dammed portion 4. As a result, the narrow elastic blade 522 elastically deforms when the powder or granular material Q is scraped from the table 2, comes into contact with the groove bottom surface 211 of the annular groove 201, and scrapes off the powder or granular material Q without leaving the powder or granular material Q on the table 2. (Cut out) is possible. Further, the narrow elastic blade 522 is formed in a plate shape with the tip cut at an acute angle, and the tip is more easily deformed elastically. Further, the tip of the narrow elastic blade 522 is cut so as to form an inclined surface inclined with respect to the cutting direction S.

The width W2 (see FIG. 4) corresponding to the circumferential direction of the table 2 in the narrow cutting member 52 (hereinafter, may be referred to as “width W2 of the narrow cutting member 52”) is the powder on the annular groove 201. It is set according to the number of divisions of the granular material Q. Specifically, the width W2 of the narrow cutting member 52 is set based on the length of one circumference in the circumferential direction at the groove center of the annular groove 201 of the table 2, and the first reference division number (wide cutting member 51) is set. It is a value determined based on the second reference division number set more than the maximum number of divisions). Specifically, the width W2 of the narrow cutting member 52 is a value obtained by dividing the length of one circumference in the circumferential direction at the groove center of the annular groove 201 of the table 2 by the second reference division number. The width W2 of the narrow cutting member 52 is set to be slightly smaller than the value obtained by dividing the circumferential length by the second reference division number in consideration of manufacturing errors. That is, the width W2 of the narrow cutting member 52 is smaller than the rotational width (rotation distance) of the table 2 in the circumferential direction with respect to the groove center when the narrow cutting member 52 is divided by the second reference division number, and the width W2 of the table 2 is smaller than that of the table 2. It is set so as to be close to the value obtained by dividing the circumferential length of the annular groove 201 at the groove center by the second reference division number.

In the present embodiment, the second standard is to cut out the powder or granular material Q arranged in the annular groove 201 so that 90 days' worth (3 packets per day x 90 days) can be divided by two cutting operations. The width W2 of the narrow cutting member 52 is set with the number of divisions being 135. That is, in the present embodiment, the case where the 94 division is performed to the 135 division is defined as the multi-division time. Since the width W2 of the narrow cutting member 52 is set as a width capable of dividing the powder or granular material Q into 135, when the number of divisions of the powder or granular material Q is 135, the first time is cut out in an accurate amount. be able to.

As shown in FIG. 3, the wide cutting member 51 and the narrow cutting member 52 are arranged so as to be separated from each other in the circumferential direction around the horizontal axis Y. Then, the first circumferential distance J1 along the cutting direction S from the narrow cutting member 52 to the wide cutting member 51 is set to the cutting direction S from the wide cutting member 51 to the narrow cutting member 52. It is shorter than the distance J2 in the second circumferential direction along the line. Further, the circumferential distance J between the wide cutting member 51 and the narrow cutting member 52 along the cutting direction S is the distance F in the cutting direction S of the annular groove 201 (hereinafter, the cutting direction distance F). ) Is larger than. In the present embodiment, the first circumferential distance J1 and the second circumferential distance J2 are distances based on the tips of the wide elastic blade 512 and the narrow elastic blade 522. Further, the first circumferential distance J1 and the second circumferential distance J2 are larger than the cutting direction distance F of the annular groove 201. Specifically, the first circumferential distance J1 is formed to be larger than the cutting direction distance F of the annular groove 201, while the wide cutting member 51 and the narrow cutting member 52 are arranged close to each other. The distance is set. That is, the first circumferential distance J1 is formed to be slightly larger than the cutting direction distance F of the annular groove 201.

The fixing portion 53 is formed in a disk shape. The fixing portion 53 fixes the base end portions of the wide cutting member 51 and the narrow cutting member 52. The fixing portion 53 includes a wide fixing portion 531 for fixing the wide cutting member 51 and a narrow fixing portion 532 for fixing the narrow cutting member 52. The wide fixing portion 531 is formed with a thickness corresponding to the width W1 of the wide cutting member 51. The narrow width fixing portion 532 is formed with a thickness corresponding to the width W2 of the narrow width cutting member 52. That is, the wide fixing portion 531 is formed to be thicker than the narrow fixing portion 532. A wide cover body 61, which will be described later, is fixed to the wide fixing portion 531. Further, a narrow width cover body 62, which will be described later, is fixed to the narrow width fixing portion 532.

The cover body 6 is provided on the upstream side of the cutout portion 5 in the division direction R, and is a portion that partitions the powder or granular material Q on the upstream side in the division direction when cutting out by the cutout portion 5. The cover body 6 is arranged so as to overlap the cutout portion 5 in front view. The cover body 6 is arranged so as to extend toward the cutting direction S side from the cutting portion 5. The cover body 6 is formed in a substantially elliptical shape when viewed from the front. The cover body 6 is set so that the curvature of the curved portion on the cutting direction S side substantially matches the curvature of the groove bottom surface 211. The cover body 6 is attached to the upstream side wall in the dividing direction of the fixing portion 53. The cover body 6 includes a wide cover body 61 juxtaposed with the wide cutting member 51 and a narrow cover body 62 juxtaposed with the narrow cutting member 52.

As shown in FIG. 3, the circumferential width G2 of the narrow cover body 62 corresponding to the circumferential direction of the dam portion 4 is the circumferential width of the wide cover body 61 corresponding to the circumferential direction of the dam portion 4. It is formed narrower than G1. The narrow cutting member 52 is located near the downstream end edge 213 of the annular groove 201 at the initial position P1 described later. Specifically, the narrow cutting member 52 is located at the initial position P1 at a position slightly advanced from the downstream end edge 213 to the downstream side in the cutting direction. At this initial position P1, the narrow width cover body 62 is retracted from the annular groove 201 to the downstream side in the cutting direction so as not to come into contact with the powder or granular material Q on the annular groove 201. Specifically, the edge of the narrow cover body 62 on the downstream side in the cutting direction is located so as to be substantially aligned in the radial direction of the dammed portion 4 with respect to the tip of the narrow elastic blade 522. With this arrangement, the narrow width cutting member 52 is positioned near the downstream end edge 213 of the annular groove 201 at the initial position P1, while the narrow width cover body 62 becomes the powder or granular material Q on the annular groove 201. It is designed not to touch. As described above, the cutting mechanism 3 is configured so as not to come into contact with the powder or granular material Q during rotation from the initial position P1 to the wide cutting start position P4 described later.

As shown in FIG. 2, the first switching unit 7 includes a first switching shaft 71 and an arm 72 that rotates around the first switching shaft 71. The first switching shaft 71 is fixed to the mounting portion 10. The first switching shaft 71 is inserted through one end of the arm 72, and the cutting mechanism 3 is fixed to the other end. The first switching unit 7 moves the cutting mechanism 3 up and down by moving the arm 72 up and down with the first switching shaft 71 as the axis center, and switches between the cutting posture C and the separation posture T.

The cleaning unit 8 includes a first cleaning unit 81 for cleaning the cutting mechanism 3 and a second cleaning unit 82 for cleaning the groove bottom surface 211 of the annular groove 201. The cleaning unit 8 is configured by a known cleaning mechanism, for example, as disclosed in Japanese Patent No. 5039485. The first cleaning unit 81 blows cleaning air onto the suction unit 811 that sucks the powder or granular material Q adhering to the cutout portion 5, and the powder or granular material Q that adheres to the cutout portion 5. Is provided with a spraying portion 812 for peeling the powder from the cutting portion 5, and a brush portion 813 for scraping off the powder or granular material Q which comes into contact with the cutting portion 5 and adheres to the cutting portion 5. The first cleaning unit 81 has a standby posture E (a posture shown by a solid line in FIG. 2), which is a posture during the cutting operation by the cutting mechanism 3, and a cleaning posture D, which is a posture for cleaning the cutting mechanism 3. It is configured to be switchable to (the posture shown by the two-dot chain line in FIG. 2). In the present embodiment, the first cleaning unit 81 is switched between the standby posture E and the cleaning posture D by moving up and down. Specifically, in the cleaning step, the first cleaning unit 81 descends from the standby posture E to take the cleaning posture D, and the cutting mechanism 3 rises from the cutting posture C to take the separation posture T, and the cutting mechanism Cleaning of 3 is carried out.

When the cutting mechanism 3 cuts out in the case of multiple divisions, the first cleaning unit 81 cleans the wide cutting member 51 and the narrow cutting member 52, and the cutting mechanism 3 cuts out in the case of small divisions. When the above is performed, the wide cutting member 51 is configured to be cleaned. Specifically, as shown in FIG. 5, in the cleaning step, the cutting mechanism 3 is rotated so that the cutting member used for cutting comes into contact with the brush portion 813 of the first cleaning portion 81. FIG. 5 shows a case where the narrow cutting member 52 is cleaned, but the same applies to the case where the wide cutting member 51 is cleaned. The brush part 813 scrapes the powder or granular material Q from the cutting member, the spraying part 812 blows cleaning air onto the cutting out part 5, and at the same time, the suction part 811 blows the powder or granular material Q and the cleaning air. Aspirate. The cutting mechanism 3 stops the rotation of the cutting portion 5 at the spraying position where the cleaning air is sprayed by the spraying portion 812, and resumes the rotation when the adhered powder or granular material Q is peeled off. The cutting mechanism 3 is cleaned while the cutting mechanism 3 makes one rotation.

As shown in FIG. 2, the second cleaning unit 82 cleans the non-contact posture L (the posture shown by the solid line in FIG. 2) and the groove bottom surface 211, which are the postures during the cutting operation by the cutting mechanism 3. It is configured to be freely switchable to a contact posture M (a posture shown by a two-dot chain line in FIG. 2), which is a posture. The second cleaning unit 82 is separated from the groove bottom surface 211 of the annular groove 201 in the non-contact posture L. Further, the second cleaning unit 82 is in contact with the groove bottom surface 211 in the contact posture M. The second cleaning unit 82 is provided with a brush 821 for sweeping the powder or granular material Q adhering to the groove bottom surface 211 to the outside of the annular groove 201 and a wiping body 822 for wiping the groove bottom surface 211. When the cleaning unit 8 enters the cleaning process, the second cleaning unit 82 descends from the non-contact posture L and is switched to the contact posture M, and starts cleaning the groove bottom surface 211.

The second switching unit 9 is configured to switch the first cleaning unit 81 between the cleaning posture D and the standby posture E. The second switching portion 9 includes a second switching shaft 91 and a base portion 92 that rotates around the second switching shaft 91. The second switching shaft 91 is inserted through one end of the base portion 92, and the suction portion 811 is placed and fixed on the base portion 92. The second switching unit 9 switches the first cleaning unit 81 between the cleaning posture D and the standby posture E by moving the base unit 92 up and down.

As shown in FIG. 1, the mounting portion 10 is arranged inside the inner peripheral edge of the table 2. The mounting portion 10 of the present embodiment is formed in a plate shape, and mounts the cutting mechanism 3, the first switching portion 7, the cleaning portion 8, and the second switching portion 9. In the present embodiment, the mounting portion 10 is fixed to a predetermined fixing object so as not to rotate together with the table 2.

The control unit is a part that controls the operation of the powder or granular material dividing device 1. The control unit controls the rotation drive of the table 2, controls the cutting operation of the cutting mechanism 3, controls the posture switching of the cutting mechanism 3 (control of the first switching unit 7), and cleans the cleaning unit 8. Control, control of switching the posture of the cleaning unit 8 (control of the second switching unit 9), and the like are performed.

The control unit controls the cutting mechanism 3 so that the first time is cut out by the narrow cutting member 52 and the second and subsequent times are cut out by the wide cutting member 51 at the time of multiple division. Further, the control unit controls the cutting mechanism 3 so as to cut out with the wide cutting member 51 from the first round to the final round at the time of small division. Further, the control unit controls the cutting mechanism 3 so as to cut out one packet of powder or granular material Q by rotating the cutting unit 5 once during the multi-division and the first small division, and the second small division. Occasionally, the cutting mechanism 3 is controlled so as to cut out one packet of powder or granular material Q by rotating the cutting portion 5 a plurality of times.

In the control unit of the present embodiment, during the relative rotation between the table 2 and the cutting mechanism 3, the blocking portion 4 and the cutting portion 5 are cut, and the narrow cutting member 52 is formed in the annular groove 201 on the downstream side in the cutting direction. From the initial position P1 located near the downstream edge 213 to the wide cutting start position P4 where the wide cutting member 51 approaches the upstream edge 212 of the annular groove 201 on the upstream side in the cutting direction and starts cutting. , The cutting mechanism 3 is controlled so as to rotate in the cutting direction S. Further, during the relative rotation between the table 2 and the cutting mechanism 3, the control unit cuts the dam 4 and the cutting portion 5, and the narrow cutting member 52 is on the upstream side of the annular groove 201 on the upstream side in the cutting direction. It is controlled to rotate in the cutting direction S from the preparation position P2 approaching the edge 212 to the narrow cutting start position P3 where the cutting of the powder or granular material Q by the narrow cutting member 52 is started.

When the cutting mechanism 3 cuts out in the case of multiple divisions, the control unit of the present embodiment cleans the wide cutting member 51 and the narrow cutting member 52, and sets the cutting mechanism 3 in the case of small divisions. When cutting is performed, the cleaning unit 8 is controlled so as to clean the wide cutting member 51.

This concludes the description of the powder or granular material dividing device 1 according to the present embodiment. Next, the operation of the powder or granular material dividing device 1 will be described with reference to the state of the cutting mechanism 3 shown in FIGS. 6 and 7 and the flow shown in FIGS. 8 to 10.

In the powder or granular material dividing device 1, the operation of the cutting mechanism 3 differs between the time of multiple division and the time of minor division. As an operation common to the multi-division and the small division, the operation until the powder or granular material dividing device 1 starts the cutting operation will be described.

An instruction from an operator such as a pharmacist (in this embodiment, an instruction to separate the powder (powder / granular material Q) in the form of powder or granular material on the operation panel of the powder or granular material dividing device 1) is given to the operation panel. The powder or granular material dividing device 1 starts driving by being performed by a touch operation or the like (step S1). A rotation drive motor (not shown) is driven, and the table 2 starts rotating (rotating in the dividing direction R) about the vertical axis X (step S2). Subsequently, a supply means such as a feeder starts supplying the powder or granular material Q to the annular groove 201 (step S3). When the powder or granular material Q is evenly sprinkled all around the annular groove 201 and the supply of the powder or granular material Q is stopped (step S4), the table 2 stops rotating (step S5). In this state, the cutting mechanism 3 is in the separation posture T. The first cleaning unit 81 is in the standby posture E, and the second cleaning unit 82 is in the non-contact posture L.

When the supply of the powder or granular material Q to the annular groove 201 is completed, the powder or granular material dividing device 1 starts the cutting operation. When the cutting operation is started, as shown in (a) of FIG. 6 and (a) of FIG. 7, the cutting mechanism 3 is in the state of taking the separation posture T, and the dammed portion 4 and the cutting portion are taken. 5 is positioned at the initial position P1. At the initial position P1, the narrow cutting member 52 is located near the downstream edge 213 of the annular groove 201 on the downstream side in the cutting direction, and the wide cutting member 51 is downstream of the narrow cutting member 52 in the cutting direction. Located on the side.

Subsequently, it is determined whether or not the set number of divisions is the number of divisions at the time of multiple divisions (step S7). When it is determined that the set number of divisions is at the time of multiple divisions, the cutting mechanism 3 starts preparations for cutting out the first time by the narrow cutting member 52. Specifically, as shown in FIG. 6B, the cutting mechanism 3 has a separation posture T up to the preparation position P2 at which the narrow cutting member 52 approaches the upstream end edge 212 of the annular groove 201. It rotates in the cutting direction S as it is (step S8).

When the cutting mechanism 3 stops at the preparation position P2, as shown in FIG. 6C, the cutting mechanism 3 moves downward from the separation posture T to the cutting posture C (step S9). In this state, the dammed portion 4 comes into contact with the groove bottom surface 211 of the annular groove 201 to partition the powder or granular material Q. At the preparation position P2, the narrow cutting member 52 is located upstream of the upstream end edge 212 of the annular groove 201 in the cutting direction, and the wide cutting member 51 is cut out from the downstream end edge 213. It is located on the downstream side (the cutout portion 5 is located outside the upstream side edge 212 and the downstream side edge 213 of the annular groove 201). Subsequently, prior to the first cutting, the table 2 rotates in the dividing direction R, and the cutting mechanism 3 starts cutting the powder or granular material Q by the narrow cutting member 52 from the preparation position P2. Rotate in the cutting direction S up to the cutting start position P3 (step S10, FIGS. 6 (c) to 6 (d)). At the narrow cutout start position P3, the narrow cutout member 52 is closer to the upstream end edge 212 of the annular groove 201 than at the preparation position P2, and the wide cutout member 51 is at the downstream end of the annular groove 201. It is further separated from the edge 213 on the downstream side in the cutting direction. That is, the control unit rotates the cutting mechanism 3 at the preparation position P2 and the narrow cutting start position P3 so that the wide cutting member 51 is located downstream of the annular groove 201 in the cutting direction. By this control, it is possible to prevent the powder or granular material Q from being cut out by the wide cutting member 51 when cutting out by the narrow cutting member 52. The rotation of the cutting mechanism 3 from the preparation position P2 to the narrow cutting start position P3 may be performed at the same time as the rotation of the table 2, and is performed separately from the rotation of the table 2 (after the rotation of the table 2). You may.

Then, it is determined whether or not the table 2 has rotated by a predetermined angle corresponding to the first cutting (step S11). When it is determined that the table 2 has rotated by a predetermined angle, the table 2 stops (step S12), and as shown in FIG. 6D, the cutting mechanism 3 can start cutting by the narrow cutting member 52. It becomes a state. Then, the first cutting by the narrow cutting member 52 is started (step S13, also shown in FIG. 6E).

Subsequently, it is determined whether or not the cutting mechanism 3 has rotated to the initial position P1 (the position shown in FIG. 6F) (step S14). That is, it is determined whether or not the cutting by the narrow cutting member 52 is completed. When it is determined that the cutting mechanism 3 has rotated to the initial position P1, the table 2 rotates in the dividing direction R prior to the second cutting (step S15). Then, it is determined whether or not the table 2 has rotated by a predetermined angle corresponding to the second cutting (step S16). When it is determined that the table 2 has rotated by a predetermined angle, the table 2 is stopped (step S17), and as shown in FIG. 6 (g), the cutting mechanism 3 can start cutting by the wide cutting member 51. It becomes.

Here, during the rotation of the table 2, the cutting mechanism 3 rotates in the cutting direction S from the initial position P1 to the wide cutting start position P4 at which the powder / granular material Q is started to be cut by the wide cutting member 51. (The cutting mechanism 3 rotates from the state of FIG. 6 (f) to the state of FIG. 6 (g)). At the wide cutting start position P4, the wide cutting member 51 is close to the upstream end edge 212 of the annular groove 201 on the upstream side in the cutting direction. Specifically, as shown in FIG. 6 (g), the wide cutting member 51 is located on the upstream side in the cutting direction from the upstream end edge 212 of the annular groove 201 (upstream side of the annular groove 201). It is located outside the edge 212). Since the rotation angle of the table 2 corresponding to the second cutting is larger than the rotation angle of the table 2 corresponding to the first cutting, the dam 4 is dragged by the rotating groove bottom surface 211, and the dam 4 Vibration and noise (chatter) are likely to occur. In this way, by rotating the cutting mechanism 3 from the initial position P1 to the wide cutting start position P4 during the rotation of the table 2, the dam 4 is moved to the groove bottom surface 211 of the annular groove 201 during the rotation of the table 2. Since it can be rotated while being in contact with the dam portion 4, vibration and noise (chatter) generated from the dam portion 4 due to being dragged by the rotating groove bottom surface 211 can be suppressed. ..

Further, in the present embodiment, the first circumferential distance J1 between the wide cutting member 51 and the narrow cutting member 52 is set to be larger than the cutting direction distance F of the annular groove 201, while the wide cutting member. Since the distance between the 51 and the narrow cutting member 52 is set so as to be close to each other, the wide cutting member 51 is positioned as far upstream as possible in the cutting direction at the initial position P1 and the wide cutting starts. The moving distance (rotational distance) of the wide cutting member 51 up to the position P4 can be increased. In order to suppress chattering, it is necessary to rotate the dam 4 at a predetermined speed or higher, but by setting the first circumferential distance J1 slightly larger than the cutting direction distance F, the table 2 is rotating. The rotation distance of the dam portion 4 in the above can be increased.

Then, the second cutting by the wide cutting member 51 is started (step S18). Again, it is determined whether or not the cutting mechanism 3 has rotated to the initial position P1 (the position shown in FIG. 6H) (step S19). That is, it is determined whether or not the cutting by the wide cutting member 51 is completed. When it is determined that the cutting mechanism 3 has rotated to the initial position P1, it is determined whether or not all cutting has been performed up to the final round in the entire circumference in the circumferential direction (step S20). If it is determined that all the cutouts up to the final round have not been made in the entire circumference in the circumferential direction, the table 2 rotates in the division direction R prior to the third cutout (step S15). Then, the steps after step S16 are repeated, and the third and fourth times are cut out by the wide cutting member 51. When it is determined that all the cuttings up to the final round have been made in the entire circumference in the circumferential direction, the cutting operation ends (step S21). In the second cutting, the cutting is performed so as to include the region on the table 2 where the powder or granular material Q has been cut out by the first cutting. As a result, the first division amount can be cut out in a desired amount according to the width of the narrow width cutting member 52, and the second and subsequent times can be cut out so as to be the same amount as the first time.

When the second cutting by the wide cutting member 51 is completed, the cutting mechanism 3 rotates to the initial position P1. After that, prior to the third cutting, the cutting mechanism 3 is in the initial position P1 and the rotation of the table 2 in the dividing direction R is started, and the cutting mechanism 3 can start cutting by the wide cutting member 51. It becomes a state. Therefore, at the time of the second and subsequent cutting at the time of multiple division, the cutting can be performed with the cutting mechanism 3 in the cutting posture C, and the cutting operation can be efficiently performed.

When it is determined in step S7 that the set number of divisions is the number of divisions at the time of small divisions, the cutting mechanism 3 starts preparations for cutting out the first time with the wide cutting member 51. Specifically, as shown in FIG. 7B, the cutting mechanism 3 moves downward from the separation posture T to the cutting posture C while being located at the initial position P1 (step S101). ). Prior to the first cutting, the table 2 rotates in the dividing direction R (step S102). Then, it is determined whether or not the table 2 has rotated by a predetermined angle corresponding to the first cutting (step S103). When it is determined that the table 2 has rotated by a predetermined angle, the table 2 is stopped (step S104), and as shown in FIG. 7C, the cutting mechanism 3 can start cutting by the wide cutting member 51. It becomes.

Here, during the rotation of the table 2, the cutting mechanism 3 rotates in the cutting direction S from the initial position P1 to the wide cutting start position P4 at which the powder / granular material Q is started to be cut by the wide cutting member 51. (The cutting mechanism 3 rotates from the state shown in FIG. 7 (b) to the state shown in FIG. 7 (c)). By this operation, vibration and noise (chatter) can be suppressed as in the case of multi-division.

Then, the first cutting by the wide cutting member 51 is started (step S105, also shown in FIG. 7D). Subsequently, it is determined whether or not the cutting mechanism 3 has rotated to the initial position P1 (the position shown in FIG. 7E) (step S106). That is, it is determined whether or not the cutting by the wide cutting member 51 is completed. When it is determined that the cutting mechanism 3 has rotated to the initial position P1, it is determined whether or not all cutting has been performed up to the final round in the entire circumference in the circumferential direction (step S107). If it is determined that the cutting has not been performed on the entire circumference in the circumferential direction, the table 2 rotates in the dividing direction R prior to the second cutting, and the cutting mechanism 3 is set to the initial position to prevent vibration and noise. It rotates from P1 to the wide cutting start position P4 (step S102, the cutting mechanism 3 rotates from the state of FIG. 7 (e) to the state of FIG. 7 (f)). Then, the steps after step S103 are repeated. Then, all cutting up to the final round is performed by the wide cutting member 51. When it is determined that all the cuttings up to the final round have been made in the entire circumference in the circumferential direction, the cutting operation ends (step S108).

Although not particularly illustrated, when it is determined in step S7 that the set number of divisions is the number of divisions at the time of small division, the first division is further performed in which the number of divisions exceeds the reference small number of divisions. It may be determined whether the number of divisions is the number of divisions at the time of small division or the number of divisions at the time of the second small division, which is smaller than the number of divisions at the time of the first small division. When it is determined that the set number of divisions is the number of divisions at the time of the first minor division, the cutting mechanism 3 operates according to the steps after step S102 described above (1 rotation of the cutting mechanism 3 causes 1). To divide). When it is determined that the set number of divisions is the number of divisions at the time of the second minor division, the cutting mechanism 3 performs one division by cutting out a plurality of times. Specifically, the table 2 and the cutting mechanism 3 cut out one division by repeating the operations from step S102 to step S106 a plurality of times.

In the present embodiment, the reference number of minor divisions is 14, and at the time of the first minor division, division from 14 divisions to 93 divisions is performed, and at the time of the second minor division, divisions of 13 divisions or less are performed. Further, the number of cutouts of the cutting mechanism 3 per division at the time of the second small division is set based on the reference angle which is the rotation angle of the table 2 per one division with the reference small number of divisions. Specifically, the value obtained by dividing the rotation angle of the table 2 per division at the time of the second minor division by the above reference angle is rounded up to the nearest whole number and the number of cuts of the cutting mechanism 3 at the time of one division. It is supposed to be.

This will be further described. The reference angle at the time of 14 division is set to 25.71 degrees (360 degrees / 14 divisions), and the number of cutouts (rotation speed) of the cutting mechanism 3 at the time of the second minor division is determined. For example, when the powder or granular material Q is divided into 13 parts, the value obtained by dividing the rotation angle of the table 2 per division by 27.69 degrees (360 degrees / 13 divisions) by the reference angle of 25.71 degrees is 1.07. , Round up after the decimal point to 2. That is, at the time of 13 divisions, the table 2 rotates 1/2 with respect to the rotation per division for each rotation of the cutting mechanism 3. That is, one division is cut out by rotating the cutting mechanism 3 twice. Further, for example, when the powder or granular material Q is divided into six, the value obtained by dividing the rotation angle of the table 2 per division by 60 degrees (360 degrees / 6 divisions) by the reference angle of 25.71 degrees is 2.33. , Round up after the decimal point to 3. That is, at the time of 6 divisions, the table 2 rotates 1/3 of the rotation per division for each rotation of the cutting mechanism 3. That is, one division is cut out by rotating the cutting mechanism 3 three times. In the present embodiment, the reference minor division number is set to 14, but the reference minor division number does not have to be 14, and can be freely set.

When the cutting operation is completed, the powder or granular material dividing device 1 starts cleaning the cutting mechanism 3 and the groove bottom surface 211. Here, the control flow for cleaning the cutting mechanism 3 will be described.

As shown in FIG. 10, when the cleaning of the cutting mechanism 3 is started (step SS1), the cutting mechanism 3 moves upward so as to be in the separation posture T from the cutting posture C, and the first cleaning unit 81 Moves downward from the standby posture E to the cleaning posture D (step SS2). Subsequently, it is determined whether or not the previous cutting operation was performed as a multi-division time, and if it is determined that the previous cutting operation was performed as a multi-division time (Yes in step SS3), the first cleaning unit 81 performs wide cutting. The member 51 and the narrow cutout member 52 are cleaned (step SS4). Specifically, cleaning is completed while the cutting mechanism 3 that has moved to the separation posture T makes one rotation from the initial position P1. While the cutting mechanism 3 makes one rotation, the wide cutting member 51 located on the downstream side in the cutting direction first contacts the brush portion 813, and then the narrow cutting member 52 contacts the brush portion 813. As a result, the powder or granular material Q adhering to the cutout members 51 and 52 is scraped off by the brush portion 813. Further, the cutting mechanism 3 stops rotating when the cutting portion 5 is positioned at the spraying position where the cleaning air is blown by the spraying portion 812 during one rotation from the initial position P1. At the spraying position, the spraying portion 812 blows cleaning air onto the cutting portion 5, and the powder or granular material Q adhering to the dam portion 4, the cutting portion 5, and the cover body 6 is peeled off. The peeled powder or granular material Q is sucked into the suction unit 811. When the previous cutting operation is multi-division, first, the wide cutting member 51 located on the downstream side in the cutting direction is positioned at the spraying position, and cleaning air is applied to the cutting portion 5 on the wide cutting member 51 side. Spray. Next, the narrow cutting member 52 is positioned at the spraying position, and cleaning air is blown to the cutting portion 5 on the narrow cutting member 52 side.

If it is determined in step SS3 that the previous cutting operation was performed as a minor division (No in step SS3), the first cleaning unit 81 cleans only the wide cutting member 51 (step SS5). That is, the cleaning step at the time of small division is different from the cleaning process at the time of multi-division in that the narrow cutting member 52 is not cleaned. Specifically, while the cutting mechanism 3 makes one rotation, the wide cutting member 51 located on the downstream side in the cutting direction comes into contact with the brush portion 813, and the powder or granular material Q adhering to the wide cutting member 51 brushes. It is scraped off by the part 813. Subsequently, the wide cutting member 51 is positioned at the spraying position, and cleaning air is blown to the cutting portion 5 on the wide cutting member 51 side. When the blowing of cleaning air to the wide cutting member 51 is completed, the cutting mechanism 3 makes one rotation without stopping the rotation so that the narrow cutting member 52 passes through the spraying position, and the wide cutting member 52 is cut out. Cleaning of the member 51 is completed. That is, in the cleaning step at the time of small division, the step of blowing cleaning air on the narrow cutting member 52 is omitted, so that the time is shortened as compared with the cleaning step at the time of multiple division. As described above, the first cleaning unit 81 removes the powder or granular material Q adhering to the cutting mechanism 3, and the cleaning step is completed (step SS6).

As described above, according to the powder or granular material dividing device 1 of the present embodiment, when the number of divisions is large (the rotation angle of the table 2 per division is small), the first time is a narrow cutting member (cutting member (). Since it is possible to cut out with the narrow cutting member 52) and cut out the second and subsequent times with the wide cutting member (wide cutting member 51), the amount of the first division is desired according to the width of the narrow cutting member 52. It is possible to cut out the same amount as the first time after the second time while cutting out with the amount of. When the number of divisions is small (the rotation angle of the table 2 per division is large), the amount that can be cut out at one time is increased by cutting out with a wide cutting member (wide cutting member 51). be able to. As described above, since the powder / granular material dividing device 1 having the above configuration can properly use the cutting member according to the number of divisions, it is possible to cope with the case where the number of divisions is small and the case where the number of divisions is large. Good cutting efficiency.

Further, according to the present embodiment, since the distance in the first circumferential direction is shorter than the distance in the second circumferential direction, the wide cutting member 51 when the blocking portion 4 and the cutting portion 5 are in the initial positions is blocked. It is possible to move away from the wide cutting member 51 when the portion 4 and the cutting portion 5 are in the wide cutting start position in the cutting direction S. Therefore, during the relative rotation between the table 2 and the cutting mechanism 3, the rotation distance of the dam portion 4 can be secured longer by the distance, so that the dam is formed during the relative rotation between the table 2 and the cutting mechanism 3. The state in which the stop portion 4 and the cutout portion 5 rotate can be maintained for a long time, and vibration and noise during the relative rotation can be suppressed.

Further, according to the present embodiment, the wide cutting member 51 can be positioned outside the annular groove 201 while the powder / granular material Q is cut out by the narrow cutting member 52 at the time of multi-division, so that the wide cutting member 51 can be cut out. The narrow cutting member 52 can cut out an accurate amount without the member 51 interfering with the cutting by the narrow cutting member 52.

Further, according to the present embodiment, when the wide cutting member 51 and the narrow cutting member 52 are used, the wide cutting member 51 and the narrow cutting member 52 are cleaned, and the wide cutting member 51 is cleaned. When is used, the wide cutting member 51 is cleaned, so that the used cutting member can be cleaned according to either the cutting mode at the time of multi-division or the cutting at the time of small division. .. Therefore, according to such a configuration, the cutout member can be efficiently cleaned. That is, by cleaning only the cutting member contaminated with the powder or granular material Q, the cleaning time can be shortened and the next cutting operation can be started quickly.

In the above embodiment, the cutting can be performed with the cutting mechanism 3 in the cutting posture C at the time of the second and subsequent cuttings at the time of multiple division. That is, in the above embodiment, since the width W1 of the wide cutting member 51 is wider than the width W2 of the narrow cutting member 52, after the wide cutting member 51 passes through the annular groove 201 in the second and subsequent cuttings. Even if the narrow cutting member 52 passes through the annular groove 201, the powder or granular material Q is not cut out excessively, and it is not necessary to switch the posture of the cutting mechanism 3. Therefore, in the above embodiment, the control required when cutting out the second and subsequent times by the narrow cutting member 52 (for example, after the first cutting, the cutting mechanism 3 is switched from the cutting posture C to the separated posture T. After that, it is not necessary to move to the narrow cutting start position P3 and further control the cutting posture C), and the cutting operation can be performed efficiently.

The powder or granular material dividing device 1 of the present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

In the above embodiment, the cutting mechanism 3 has described the case where the powder or granular material Q is cut out in the outer diameter direction of the annular groove 201, but the present invention is not limited to this. The cutting mechanism 3 may be configured to cut out the powder or granular material Q in the in-diameter direction of the annular groove 201 (that is, toward the center side of the table).

In the above embodiment, the relative rotation between the table 2 and the cutting mechanism 3 has been described when the cutting mechanism 3 is stopped and the table 2 is rotated, but the relative rotation is not limited to this. .. The relative rotation between the table 2 and the cutting mechanism 3 may be performed by stopping the table 2 and rotating the cutting mechanism 3. Further, it may be carried out by rotating both the table 2 and the cutting mechanism 3.

In the above embodiment, the case where the width W1 of the wide cutting member 51 is set with the first reference division number (maximum number of divisions) as 93 has been described, but the first reference division number (maximum number of divisions) can be freely set. It is possible. Further, in the above embodiment, the case where the width W2 of the narrow cutting member 52 is set with the second reference division number being 135 has been described, but the second reference division number can be freely set. That is, the width W1 of the wide cutting member 51 and the width W2 of the narrow cutting member 52 can be freely set.

In the above embodiment, the case where the first circumferential distance J1 is shorter than the second circumferential distance J2 has been described from the viewpoint of preventing chattering, but the first circumferential distance J1 and the second circumferential distance J2 have the same length. It may be.

In the above embodiment, the minor division is composed of the first minor division and the second minor division, and the cutting mechanism 3 rotates a plurality of times during the second minor division to cut out the amount of one division. Was explained. However, at the time of the second small division, one division may be cut out by rotating the cutting mechanism 3 once.

1 ... Powder and granule dividing device, 2 ... Table, 21 ... Groove, 22 ... Flat plate, 201 ... Circular groove, 211 ... Groove bottom surface, 212 ... Upstream edge, 213 ... Downstream edge, 3 ... Cutting mechanism 4, 4 ... Damping part, 5 ... Cutting part, 51 ... Wide cutting member (first cutting member), 52 ... Narrow cutting member (second cutting member), 53 ... Fixed part, 511 ... Wide width Cutting body 512 ... Wide elastic blade 521 ... Narrow cutting body 522 ... Narrow elastic blade 513 ... Wide fixing part 532 ... Narrow fixing part, 6 ... Cover body, 61 ... Wide cover Body, 62 ... Narrow width cover body, 7 ... 1st switching unit, 71 ... 1st switching shaft, 72 ... Arm, 8 ... Cleaning unit, 81 ... 1st cleaning unit, 82 ... 2nd cleaning unit, 811 ... Suction Part, 812 ... spraying part, 813 ... brush part, 9 ... second switching part, 91 ... second switching shaft, 92 ... base part, 10 ... mounting part, C ... cutting posture, D ... cleaning posture, E ... Standby posture, J, J1 ... 1st circumference distance, J, J2 ... 2nd circumference distance, H ... Hopper, L ... Non-contact posture, M ... Contact posture, P ... Connecting shaft, Q ... Powder and granules, R ... Dividing direction, S ... Cutting direction, T ... Separation posture, W1 ... Width of wide cutting member, W2 ... Width of narrow cutting member, X ... Vertical axis, Y ... Horizontal axis, P1 ... Initial position, P2 ... Preparation position, P3 ... Narrow cutout start position, P4 ... Wide cutout start position

Claims (2)

A table with an annular groove on which powder or granular material can be placed, and
It is a damming portion that contacts the bottom surface of the annular groove and dams the powder or granular material on the annular groove in the circumferential direction of the table, and is configured to rotate relative to the vertical axis with respect to the table. In addition, a dam portion configured to rotate in the cutting direction, which is one direction around the horizontal axis extending in the direction intersecting the vertical axis, and
A cutout portion adjacent to the downstream side in the rotation direction in the relative rotation of the dam portion and for cutting out the powder or granular material on the annular groove by scratching the powder or granular material in the radial direction of the table. A cutout portion for cutting out the powder or granular material while rotating in the cutout direction together with the portion is provided.
The cutout portion includes a first cutout member and a second cutout member arranged so as to be separated from each other in the circumferential direction around the horizontal axis.
The distance in the first circumferential direction from the second cutting member to the first cutting member along the cutting direction is along the cutting direction from the first cutting member to the second cutting member. It is shorter than the second circumferential distance, and the circumferential distance between the first cutting member and the second cutting member along the cutting direction is the distance of the annular groove in the cutting direction. Is bigger than
The width of the first cutting member corresponding to the circumferential direction of the table is set based on the length of one circumference of the table in the circumferential direction and the first reference division number set as a predetermined number of divisions.
The width of the second cutting member corresponding to the circumferential direction of the table is set based on the length of one circumference of the table in the circumferential direction and the second reference division number set to be larger than the first reference division number. The powder and granular material dividing device that has been used. A table with an annular groove on which powder or granular material can be placed, and
It is a damming portion that contacts the bottom surface of the annular groove and dams the powder or granular material on the annular groove in the circumferential direction of the table, and is configured to rotate relative to the vertical axis with respect to the table. In addition, a dam portion configured to rotate in the cutting direction, which is one direction around the horizontal axis extending in the direction intersecting the vertical axis, and
A cutout portion adjacent to the downstream side in the rotation direction in the relative rotation of the dam portion and for cutting out the powder or granular material on the annular groove by scratching the powder or granular material in the radial direction of the table. A cutout portion for cutting out the powder or granular material while rotating in the cutout direction together with the portion is provided.
The cutout portion includes a first cutout member and a second cutout member arranged so as to be separated from each other in the circumferential direction around the horizontal axis.
The distance in the first circumferential direction from the second cutting member to the first cutting member along the cutting direction is along the cutting direction from the first cutting member to the second cutting member. It is shorter than the second circumferential distance, and the circumferential distance between the first cutting member and the second cutting member along the cutting direction is the distance of the annular groove in the cutting direction. Granule splitting device that is larger than.

Images