Powdered medicine scraping-out device and powdered medicine packaging device

Abstract

To provide a powdered medicine scraping-out device capable of simplifying centering work between a groove of the powdered medicine scraping-out device and a powdered medicine scraping-out member.SOLUTION: A powdered medicine scraping-out device 9 scrapes out a powdered medicine supplied to a spray accommodating member 8 having a groove 8a with an arc-shaped cross section. The powdered medicine scraping-out device 9 includes a rotary shaft 21 that can be rotatably driven, and a rotary plate 23 that is rotated by the rotary shaft 21 and has an outer periphery in contact with the groove. The rotary plate 23 is provided with a scraping-out plate 29. The rotary plate 23 is provided to be elastically movable in the radial direction with respect to the rotary shaft 21. An elastic member 26 is provided between the rotary shaft 21 and the rotary plate 23. The elastic member 26 is made of a coil spring capable of being extended or retracted in a direction different from the radial direction of the rotary shaft 21, preferably in a tangential direction of a virtual circle C centered about the rotary shaft 21.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a powder medicine scraping device and a powder medicine packaging device for scraping out a fixed amount of powder medicine contained in a groove of a powder medicine container, and in particular to an automatic centering mechanism for the powder medicine scraping member. [Background technology]

[0002] Conventionally, powder medicine packaging devices are equipped with a powder medicine scraping device that uniformly supplies powder medicine to a powder medicine storage member (also called an R-disk or distribution dish) having an annular groove with an arc-shaped cross-section, and distributes and scrapes out the powder medicine in the annular groove one packet at a time using a rotating plate with a scraping plate (see Patent Documents 1 and 2).

[0003] In such a powder medicine scraping device, if the outer circumferential surface of the rotating plate of the powder medicine scraping member is not in close contact with the annular groove of the powder medicine storage member, the powder medicine will leak from the gap between the rotating plate and the annular groove when the powder medicine is scraped out or when the powder medicine storage member is rotated, causing variations in the amount of powdered medicine packaged or leakage of powdered medicine. For this reason, a centering operation (centering operation) is performed for each powder medicine packaging device to align the rotation center of the rotating plate of the powder medicine scraping member with the curvature center of the annular groove of the powder medicine storage member. In practice, the rotation center of the rotating plate is made lower than the curvature center of the annular groove, and the silicone rubber provided on the outer circumferential surface of the rotating plate is pressed against the annular groove.

[0004] However, the powdered medicine storage member has a structure in which the annular groove rotates, and the rotating plate is supported by a rotating shaft at the tip of the arm and can rotate, and is also structured to rise and fall relative to the annular groove of the powdered medicine storage member, so the centering work is difficult, time-consuming, and requires a lot of effort. Also, due to differences between each powdered medicine packaging device, adjustment allowances can only be used for devices that have been centered, and once the powdered medicine scraping device is disassembled, the centering work must be done from scratch. Furthermore, if the silicone rubber of the rotating plate is pressed too hard against the annular groove, the silicone rubber and the annular groove will wear out and wear powder will be generated, so during the centering work, it is necessary to carefully adjust the amount of pressure so that the wear powder is not packed together with the powdered medicine. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2010-179967 A [Patent Document 2] JP 2010-247841 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above-mentioned conventional problems, and its object is to provide a powder medicine scraping device and a powder medicine packaging device that can simplify the task of aligning the groove of the powder medicine storage member with the rotating member. [Means for solving the problem]

[0007] As a means for solving the above problems, the powder medicine scraping device of the present invention is A powdered medicine scraping device for scraping out powdered medicine supplied to a powdered medicine storage member having a groove with a circular cross section, a rotating shaft that can be rotated and a rotating plate that rotates with the rotating shaft and has an outer periphery in contact with the groove, In the powder medicine scraping device, a scraping plate is provided on the rotating plate, The rotary plate is arranged to be elastically movable in a radial direction relative to the rotary shaft.

[0008] In the above-mentioned means, the rotating plate can elastically move in the radial direction relative to the rotating shaft, so that even if the axis of the rotating shaft of the powdered medicine scraping member does not coincide with the center of curvature of the groove of the powdered medicine storage member, when the outer periphery of the rotating plate rotates along the inner surface of the groove, the elastic member causes the rotating plate to move in the radial direction relative to the rotating shaft, and the axis of the rotating shaft of the powdered medicine scraping member is automatically aligned with the center of curvature of the groove of the powdered medicine storage member.

[0009] As a specific means, it is preferable that an elastic member is provided between the rotating shaft and the rotating plate, and the elastic member is made of a coil spring that can expand and contract in a direction different from the radial direction of the rotating shaft. In this case, the elastic member is provided between a shaft side member provided on the rotating shaft and a plate side member provided on the rotating plate, the shaft side member is a drive member fixed to the rotating shaft, The plate-side member includes a mounting base to which the rotating plate is detachably attached, and a driven member fixed to the mounting base, The driving member is provided between the mounting base and the driven member, The elastic member is preferably provided between the driving member and the driven member.

[0010] Also, an elastic member may be provided between the rotating shaft and the rotating plate, and the elastic member may be a coil spring capable of expanding and contracting in a radial direction of the rotating shaft. In this case, the elastic member is provided between a shaft side member provided on the rotating shaft and a plate side member provided on the rotating plate, the shaft side member includes a first driving member fixed to the rotating shaft and a second annular driving member fixed to the first driving member, the plate-side member includes a mounting base plate to which the rotating plate is detachably attached, an elastic member receiving block fixed to the mounting base plate, and an annular driven member fixed to the mounting base plate; The second driving member is provided between the mounting base and the driven member, The elastic member is preferably provided between the second driving member and the elastic member receiving block.

[0011] Furthermore, an elastic member may be provided between the rotating shaft and the rotating plate, and the elastic member may be a ring-shaped elastic material provided between the outer peripheral surface of the shaft side member and the inner peripheral surface of the plate side member. In this case, the elastic member is provided between a shaft side member provided on the rotating shaft and a plate side member provided on the rotating plate, the shaft side member includes a first driving member fixed to the rotating shaft and a second annular driving member fixed to the first driving member, the plate-side member includes a mounting base plate to which the rotary plate is detachably attached, and an annular driven member fixed to the mounting base plate; The second driving member is provided between the mounting base and the driven member, The elastic member is preferably provided between an outer circumferential surface of an annular protrusion formed on the second driving member and an inner circumferential surface of the driven member.

[0012] It is preferable that the shaft side member and the plate side member are provided so as to be immovable in the axial direction.

[0013] The powder medicine packaging device is equipped with the powder medicine scraping device. Effect of the Invention

[0014] According to the present invention, the rotating plate can elastically move radially relative to the rotating shaft, so that even if the axis of the rotating shaft of the powdered medicine scraping member does not coincide with the center of curvature of the groove of the powdered medicine storage member, when the outer periphery of the rotating plate rotates along the inner surface of the groove, the elastic member causes the rotating plate to move radially relative to the rotating shaft, and the axis of the rotating shaft of the powdered medicine scraping member is automatically aligned with the center of curvature of the groove of the powdered medicine storage member. This simplifies the alignment process between the groove of the powdered medicine storage member and the powdered medicine scraping member. Even if the axis of the rotating shaft and the center of curvature of the groove of the powdered medicine storage member do not coincide to some extent, wear on the rotating plate and the groove is reduced, and the worker is relieved from detailed work and mental burden is reduced. Furthermore, since the positioning of the rotating shaft and the powdered medicine storage member does not need to be performed strictly, the alignment process can be completed in a short time. [Brief description of the drawings]

[0015] [Figure 1] FIG. [Diagram 2] Schematic diagram of a powder medicine packaging device. [Diagram 3] FIG. [Figure 4] FIG. 2 is an exploded perspective view of a rotating member according to the first embodiment, as viewed from a rotating shaft side. [Diagram 5] FIG. 2 is an exploded perspective view of a rotating member according to the first embodiment, as viewed from the rotating plate side. [Figure 6] FIG. 2 is an exploded perspective view of the rotating plate (a) and the mounting base (b). [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. 11 is an exploded perspective view of a rotating member according to a second embodiment, as viewed from a rotating shaft side. [Figure 10] FIG. 11 is an exploded perspective view of a rotating member according to a second embodiment, as viewed from the rotating plate side. [Figure 11] FIG. [Figure 12] FIG. [Figure 13] FIG. 11 is an exploded perspective view of a rotating member according to a third embodiment, as viewed from a rotating shaft side. [Figure 14] FIG. 11 is an exploded perspective view of a rotating member according to a third embodiment, as viewed from the rotating plate side. [Figure 15] FIG. [Figure 16] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0017] First Embodiment 1 shows a powder medicine packaging device 1 equipped with a powder medicine scraping device according to a first embodiment of the present invention. In this powder medicine packaging device 1, powder medicine inputted by a powder medicine input section 2 is scraped out one packet at a time by a powder medicine scraping section 3, and then packaged by a packaging section 4. In addition, the powder medicine packaging device 1 is equipped with a tablet manual distribution section 5 that manually distributes tablets one packet at a time and supplies them to the packaging section 4.

[0018] As shown in Figure 2, the powder medicine input section 2 is equipped with an input hopper 6 and a powder medicine feeder 7, and is configured to supply the powder medicine input from the input hopper 6 to the powder medicine feeder 7 by vibration of the powder medicine feeder 7 to the powder medicine storage member 8 of the powder medicine scraping section 3.

[0019] The powdered medicine scraping section 3 includes a powdered medicine storage member 8 and a powdered medicine scraping device 9.

[0020] The powdered medicine storage member 8 is made of a perforated disk with an annular groove 8a having an arc-shaped cross section formed on the outer periphery of the upper surface, and is rotated by the drive of the motor 10. The powdered medicine input from the powdered medicine input section 2 is evenly accommodated in the annular groove 8a.

[0021] As shown in FIG. 3, the powdered medicine scraping device 9 includes a base 11, an arm 12, and a rotating member 13.

[0022] The base 11 is disposed inside the powdered medicine storage member 8, and has a rotation motor 14 and a lifting motor 15. The rotation motor 14 transmits power from its motor gear (not shown) to a pulley 17 of a drive shaft 16 via an intermediate gear 14a and a drive gear 14b. The lifting motor 15 rotates the lifting gear 15b via the motor gear 15a, and raises and lowers the lifting platform 18 by using a pin 5c provided on the lifting gear 15b.

[0023] One end of the arm 12 is rotatably attached to a drive shaft 16 of the base 11, and the other end is attached to a rotary shaft 21, which will be described later. A belt 20 is stretched between a drive pulley 17 of the drive shaft 16 and a pulley 19 of the rotary shaft 21, so that the rotational force of the drive shaft 16 is transmitted to the rotary shaft 21. The arm 12 is supported by a lifting platform 18, and is adapted to rotate at a predetermined angle around the drive shaft 16 to a scraping position and a retracted position by raising and lowering the lifting platform 18.

[0024] As shown in Figures 4 and 5, the rotating member 13 comprises a rotating shaft 21, a driving member 22 which is a rotating shaft side member, a rotating plate 23, a mounting base plate 24 and a driven member 25 which are rotating plate side members, and an elastic member 26 interposed between the rotating shaft side member and the rotating plate side member.

[0025] As described above, the rotating shaft 21 is rotatably attached to the tip of the arm 12. The end face of the rotating shaft 21 on the rotating plate side is formed into an irregular D shape as shown in Fig. 5, and a screw hole 21a is formed at an eccentric position. Since the screw hole 21a is formed at an eccentric position, the fixing screw 27 will not loosen while the rotating shaft 21 is rotating.

[0026] The driving member 22 is composed of a base 22a and four protruding parts 22b protruding in an L-shape from the outer periphery of the base 22a. A D-shaped engagement recess 22c is formed on the rotary shaft side end face of the base 22a, which corresponds to the rotary plate side end face of the rotary shaft 21. As shown in FIG. 5, a recess 22d is formed on the rotary plate side end face of the base 22a, in which a fixing screw 27 is accommodated. A through hole 22e is formed at a position corresponding to the screw hole 21a on the rotary plate side end face of the rotary shaft 21. A spring receiving hole 22f is formed on both side faces of the tip of the protruding part 22b in the tangential direction of an imaginary circle C (see FIG. 7) centered on the rotation center of the base 22a.

[0027] The rotating shaft 21 and the driving member 22 are fixed together by engaging the rotating plate side end face of the rotating shaft 21 with the engagement recess 22c of the driving member 22 and threading a fixing screw 27 through the through hole 22e of the driving member 22 and into the screw hole 21a of the driving shaft 21.

[0028] As shown in FIG. 6(a), the rotating plate 23 is made of a stainless steel disk having the same radius of curvature as the circular arc of the annular groove 8a of the powdered medicine storage member 8, and an elastic edge portion 28 made of silicon or the like is integrated with the outer periphery by thermal fusion. A triangular mounting hole 23a is formed in the center of the rotating plate 23, and positioning holes 23b made of elongated holes are formed on both sides of the mounting hole 23a. A scraping plate 29 is integrally provided on the surface of the rotating plate 23. The scraping plate 29 is formed by bending a plate-like body made of stainless steel or the like to form a scraping portion 29a and a partition portion 29b. An elastic piece 29c made of silicon or the like is integrated with the tip of the scraping portion 29a. A part of the outer edge of the partition portion 29b is formed in an arc shape that follows the annular groove 8a of the powdered medicine storage member 8.

[0029] As shown in FIG. 6(b), the mounting base plate 24 is made of a stainless steel disk, and has positioning ribs 24a formed at positions 180 degrees apart on the outer periphery, a screw through hole 24b at the center, and four screw through holes 24c at positions a given distance away from the center. A triangular pyramid-shaped protrusion 30 that engages with the mounting hole 23a of the rotating plate 23 is attached to the surface of the mounting base plate 24 on the rotating plate side by inserting its male screw 30a into the screw through hole 24b and using a nut 31. A conical mounting pin 32 that engages with the positioning hole 23b of the rotating plate 23 is attached to symmetrical positions on both sides of the protrusion 30. The mounting pin 32 is radially slidably received in a notch 24d formed at positions 180 degrees apart on the outer periphery of the mounting base plate 24, and is biased radially outward by a spring 33. The notch 24d of the mounting base plate 24 is covered with a stop plate 35 attached with a screw 34. A positioning plate 36 having a positioning projection 36a is attached to and overlaps the retaining plate 35.

[0030] The driven member 25 is composed of a disk portion 25a and a cylindrical portion 25b protruding from the outer periphery of the disk portion 25a toward the rotating plate, and has a size that allows it to engage with the inside of the positioning rib 24a and the positioning protrusion 36a of the mounting base plate 24. A central hole 25c through which the rotating shaft 21 passes is formed in the center of the disk portion 25a. As shown in FIG. 5, four bosses 25d are protrudingly provided at a position a predetermined distance away from the center on the rotating plate side of the disk portion 25a, and four screw holes 25e are formed in each boss 25d at positions corresponding to the screw through holes 24c of the mounting base plate 24. The driving member 22 is accommodated inside the cylindrical portion 25b. Four protrusions 25f are provided inside the cylindrical portion 25b, and spring accommodating recesses 25g are formed in each protrusion 25f at positions facing the spring receiving holes 22f of the driving member 22.

[0031] The elastic member 26 is made of a coil spring, one end of which is inserted and supported in the spring receiving hole 22f of the driving member 22, and the other end of which is inserted and supported in the spring accommodating recess 25g of the driven member 25 via a flanged pin 37, and is attached in a compressed state. As shown in Fig. 7, the elastic member 26 is capable of expanding and contracting in the tangential direction of an imaginary circle C centered on the rotating shaft 21. The expanding and contracting direction of the elastic member 26 may be slightly deviated from the tangential direction, as long as it is a direction different from the radial direction.

[0032] The mounting substrate 24 and the driven member 25 are fixed together by inserting a fixing screw 38 into the screw through hole 24c of the mounting substrate 24 and screwing it into the screw hole 25e of the driven member 25. The rotating plate 23 is attached by engaging the triangular pyramidal protrusion 30 of the mounting substrate 24 with the mounting hole 23a and engaging the mounting pin 32 of the mounting substrate 24 with the positioning hole 23b. This allows the rotating plate 23, mounting substrate 24, and driven member 25 to rotate together. In addition, the rotating shaft side member and the rotating plate side member cannot move in the axial direction because the driving member 22 is sandwiched between the mounting substrate 24 and the driven member 25, as shown in FIG. 8.

[0033] Returning to Figure 2, the packaging section 4 is configured to receive powdered medicine scraped out from the powdered medicine scraping section 3 via a packaging hopper 42 into packaging paper 41 that is unwound from a paper roll 40 and folded in half, and then seal and discharge each packet using heater rollers 43a, 43b.

[0034] Next, the operation of the powdered medicine scraping device 1 having the above-mentioned configuration will be described.

[0035] First, with the powdered medicine evenly supplied to the annular groove 8a of the powdered medicine storage member 8, the arm 12 is lowered by the lifting motor 15 of the powdered medicine scraping device 9 to press the rotating plate 23 against the annular groove 8a, thereby separating the powdered medicine in the annular groove 8a. Next, the powdered medicine storage member 8 is rotated by a predetermined angle, and the powdered medicine is scraped up by the rotating plate 23.

[0036] Next, when the rotary shaft 21 is driven by the rotary motor 14 of the powdered medicine scraping device 9, the driving member 22 rotates integrally with the rotary shaft 21. As shown in FIG. 7, of the two elastic members 26 located on both sides of the protruding portion 22b of the driving member 22, the elastic member 26 on the front side in the rotation direction is compressed and pushes the protruding portion 25f of the driven member 25, and the elastic member 26 on the rear side in the rotation direction is pulled and pulls the protruding portion 25f of the driven member 25. As a result, the rotational force of the driving member 22 is transmitted to the driven member 25 via the elastic member 26, so that the driven member 25 rotates. The rotation of the driven member 25 rotates the mounting base plate 24 and the rotating plate 23.

[0037] When the rotating plate 23 rotates, the powdered medicine between the rotating plate 23 and the partition portion 29b of the scooping plate 29 is scraped out by the scooping portion 29a from the annular groove 8a of the powdered medicine storage member 8 to the packaging hopper 42, and is packaged into one packet in the packaging section 4.

[0038] If the center of curvature of the cross section of the annular groove 8a of the powdered medicine storage member 8 does not coincide with the center of the rotating plate 23, a gap or uneven contact occurs between the rotating plate 23 and the annular groove 8a, causing powdered medicine to remain unscraped, or the rotating plate 23 is pressed against the annular groove 8a, causing problems such as a decrease in the rotational force of the rotating plate 23. For this reason, before operating the powdered medicine scraping device 1, it is necessary to adjust the position of the base 11 of the powdered medicine scraping device 9 and the powdered medicine storage member 8, and perform a centering operation to match the center of rotation of the rotating plate 23 with the center of curvature of the annular groove 8a. In this embodiment, since the elastic member 26 is attached between the shaft side member and the plate side member, the center of rotation of the rotating plate 23 is automatically centered with the center of curvature of the annular groove 8a even if the center of rotation of the rotating plate 23 is not accurately matched with the center of curvature of the annular groove 8a by the centering operation.

[0039] That is, as shown in FIG. 7, when the center of rotation of the rotating plate 23 and the driven member 25, which is a rotating plate side member, is offset from the center of curvature of the annular groove 8a, the rotating plate 23 comes into contact with the annular groove 8a while the rotating plate 23 rotates, and the elastic member 26 is deformed, and the driven member 25, which rotates integrally with the rotating plate 23, moves elastically relative to the rotating shaft 21, and the center of the rotating plate 23 coincides with the center of curvature of the annular groove 8a and is aligned. In this case, the rotating plate 23 rotates eccentrically relative to the rotating shaft 21. Since the center of the rotating plate 23 is automatically aligned with the center of curvature of the annular groove 8a, the centering operation of the annular groove 8a of the powdered medicine storage member 8 and the powdered medicine scraping device 9 can be simplified, and there is no variation in the amount of sachets or no leftover scraping. In this embodiment, the elastic member 26 is arranged in the tangential direction of the virtual circle C centered on the rotating shaft 21, so that the rotating plate 23 follows the rotating shaft 21 well.

[0040] <Second embodiment> FIG. 9 is an exploded perspective view of a rotating member 13a of a powdered medicine scraping device according to the second embodiment of the present invention.

[0041] The rotating member 13a comprises a rotating shaft 21, a first driving member 51 and a second driving member 52 which are rotating shaft side members, a rotating plate 23, a mounting base plate 24 and a driven member 53 which are rotating plate side members, and an elastic member 54 interposed between the rotating shaft side member and the rotating plate side member. Of these, the rotating shaft 21 and the rotating plate 23 are substantially the same as those in the first embodiment, so the same reference numerals are used for corresponding parts and the description will be omitted.

[0042] The first driving member 51 is made of a circular plate and has a D-shaped engagement recess 51a formed in the center corresponding to the rotating plate side end face of the rotating shaft 21, and a through hole 51b formed at a position corresponding to the screw hole 21a in the rotating plate side end face of the rotating shaft 21. Four screw insertion holes 51c are formed at positions spaced a predetermined distance from the center of the first driving plate 51.

[0043] The second driving member 52 has an annular shape with approximately the same diameter as the first driving member 51. Spring receiving recesses 52a are formed at four equally spaced positions around the circumference on the surface of the second driving member 52 facing the rotary shaft, and four screw holes 52b are formed at four equally spaced positions around the circumference between the spring receiving recesses 52a at positions corresponding to the screw insertion holes 51c of the first driving member 51. An engagement portion 52c is formed on the outer periphery of the second driving member 52.

[0044] The rotating shaft 21 and the first driving member 51 are fixed together by engaging the rotating plate side end surface of the rotating shaft 21 with the engagement recess 51a of the driving member 51 and threading the fixing screw 27 through the through hole 51b of the first driving member 51 and into the screw hole 21a of the driving shaft 21. The first driving member 51 and the second driving member 52 are fixed together by inserting the fixing screw 55 into the screw insertion hole 51c of the first driving member 51 and threading it into the screw hole 52b of the second driving member 52.

[0045] The mounting substrate 24 has the same structure as that of the first embodiment, except that four spring receiving blocks 56 are fixedly attached at positions a predetermined distance from the center by screws 57 and four screw through holes 24c are provided toward the outer periphery. The spring receiving blocks 56 have spring receiving holes 56a formed in portions facing the spring receiving recesses 52a of the second driving member 52.

[0046] The driven member 53 has an annular shape with a larger diameter than the first driving member 51 and the second driving member 52. The driven member 53 has four screw holes 53a formed at equally spaced positions around its circumference. The driven member 53 has an engaged portion 53b formed on its inner circumference with which the engaging portion 52c of the second driving member 52 engages.

[0047] The mounting substrate 24 and the driven member 53 are fixed together by inserting the fixing screw 38 into the screw through hole 24c of the mounting substrate 24 and screwing it into the screw hole 53a of the driven member 53. The rotating plate 23 is attached to the mounting substrate 24 in the same manner as in the first embodiment. This allows the rotating plate 23, the mounting substrate 24, and the driven member 53 to rotate together. In addition, the rotating shaft side member and the rotating plate side member are immovable in the axial direction by the engagement between the engaging portion 52 of the second driving member 52 and the engaged portion 53b of the driven member 53, as shown in FIG.

[0048] The elastic member 54 consists of a coil spring, one end of which is inserted and supported in a spring receiving hole 56a of a spring receiving block 56 of the mounting base 24, and the other end of which is inserted and supported in a spring receiving recess 52a of the second driving member 52 via a flanged pin 58, and is attached in a radially compressed state.

[0049] In the rotating member 13a of the second embodiment, the first driving member 51 and the second driving member 52 rotate integrally with the rotating shaft 21. When the second driving member 52 rotates, the elastic member 54 is displaced in the circumferential direction relative to the spring bearing block 56 of the mounting substrate 24, and as a result, the rotational force of the second driving member 52 is transmitted from the spring bearing block 56 to the mounting substrate 24 via the elastic member 54, causing the rotating plate 23 to rotate.

[0050] In the rotating member 13a of the second embodiment, as in the first embodiment, as shown in Fig. 11, if the rotation center of the mounting base plate 24, which is the rotating plate side member, is offset from the center of curvature of the annular groove 8a, the elastic member 54 deforms while the rotating plate 23 rotates, and the mounting base plate 24, which rotates integrally with the rotating plate 23, moves elastically relative to the rotating shaft 21, and the center of the rotating plate 23 coincides with the center of curvature of the annular groove 8a and is aligned. This simplifies the centering operation of the annular groove 8a of the powdered medicine storage member and the powdered medicine scraping device 9, and eliminates variations in the amount of powdered medicine sachets and leftover powder.

[0051] <Third embodiment> FIG. 13 is an exploded perspective view of a rotating member 13b of a powdered medicine scraping device according to the third embodiment of the present invention.

[0052] The rotating member 13b is made up of a rotating shaft 21, a first driving member 61, a second driving member 62, and a fixed plate 63 which are rotating shaft side members, a rotating plate 23, a mounting base plate 24 and a driven member 64 which are rotating plate side members, and an elastic member 65 interposed between the rotating shaft side member and the rotating plate side member. Of these, the rotating shaft 21, the rotating plate 23, and the mounting base plate 24 are substantially the same as those in the first embodiment, so the same reference numerals are used for corresponding parts and the description will be omitted.

[0053] The first driving member 61 is made of a circular plate and has a D-shaped engagement recess 61a formed in the center that corresponds to the rotating plate side end face of the rotating shaft 21, and a through hole 61b formed at a position corresponding to the screw hole 21a in the rotating plate side end face of the rotating shaft 21. Two screw insertion holes 61c are formed at positions a predetermined distance away from the center of the first driving plate 61. A circular protrusion 61d is formed in the center of the rotating plate side surface of the first driving member 61, and an annular edge 61e that protrudes toward the rotating plate side is formed on the outer periphery.

[0054] The second driving member 62 is made of a circular plate with an opening 62a formed in the center and a screw insertion hole 62b formed at a position a predetermined distance from the center corresponding to the screw insertion hole 61c of the first driving member 61. The second driving member 62 has an annular protrusion 62c on its surface on the rotating shaft side into which the circular protrusion 61d of the first driving member 61 fits, and a circular recess 62d on its surface on the rotating plate side.

[0055] The fixed plate 63 is made of a circular plate, with an opening 63a formed in the center and screw holes 63b formed at positions a predetermined distance from the center corresponding to the screw insertion holes 61c, 62b of the first driving member 61 and the second driving member 62. The opening 63c prevents the screws 34 of the mounting board 24 from interfering with the fixed plate 23.

[0056] The rotating shaft 21 and the first driving member 61 are fixed together by engaging the rotating plate side end surface of the rotating shaft 21 with the engagement recess 61a of the first driving member 61 and threading the fixing screw 27 through the through hole 61b of the first driving member 61 and into the screw hole 21a of the rotating shaft 21. The first driving member 61 and the second driving member 62 are fixed together by fitting the annular protrusion 62c of the second driving member 62 into the circular protrusion 61d of the first driving plate 61, fitting the fixing plate 63 into the circular recess 62d of the second driving member 62, and inserting the fixing screw 66 into each screw insertion hole 61c, 62b of the first driving member 61 and the second driving member 62 and threading it into the screw hole 63b of the fixing plate 63.

[0057] The driven member 64 has an annular shape with a larger diameter than the second driving member 62. The driven member 64 has screw holes 64a formed at four equally spaced positions around its circumference. The driven member 64 has an engagement portion 64b formed on its inner circumference to engage with the outer circumferential edge of the second driving member 62.

[0058] The mounting substrate 24 and the driven member 64 are fixed together by inserting the fixing screw 38 into the screw through hole 24c of the mounting substrate 24 and screwing it into the screw hole 64a of the driven member 64. The rotating plate 23 is attached to the mounting substrate 24 in the same manner as in the first embodiment. This allows the rotating plate 23, the mounting substrate 24, and the driven member 64 to rotate together. In addition, the rotating shaft side member and the rotating plate side member are immovable in the axial direction by the outer circumferential edge of the second driving member 62 engaging with the engaging portion 64b of the driven member 64, as shown in FIG.

[0059] The elastic member 65 is made of a ring-shaped rubber material, and its inner surface is fixed to the outer surface of the annular protrusion 62c of the second driving member 62 with an adhesive or the like, and its outer surface is fixed to the inner surface of the driven member 64 with an adhesive or the like.

[0060] In the rotating member 13b of the third embodiment, the first driving member 62 and the second driving member 62 rotate integrally with the rotating shaft 21. When the second driving member 62 rotates, the elastic member 65 is displaced in the circumferential direction relative to the driven member 64, and as a result, the rotational force of the second driving member 62 is transmitted to the driven member 64 via the elastic member 65, and the mounting substrate 24 and the rotating plate 23 rotate.

[0061] In the third embodiment, as in the first embodiment, when the center of rotation of the mounting base plate 24, which is the member on the rotating plate side, is offset from the center of curvature of the annular groove 8a, the elastic member 65 deforms while the rotating plate 23 rotates, and the mounting base plate 24, which rotates together with the rotating plate 23, moves elastically with respect to the rotating shaft 21, so that the center of the rotating plate 23 coincides with the center of curvature of the annular groove 8a and is aligned. This simplifies the centering operation of the annular groove 8a of the powdered medicine storage member 8 and the powdered medicine scraping device 9, and eliminates variations in the amount of powdered medicine in the packets and leftover powder.

[0062] The present invention is not limited to the above-described embodiment, and modifications and alterations are possible without departing from the gist of the invention. For example, the elastic member only needs to be provided between the rotating shaft side member and the rotating plate side member, and the mounting position can be changed as desired, and the specific form of the elastic member is not limited to a coil spring or rubber, and may be a leaf spring or a torsion spring. In particular, the elastic member may be provided directly between the rotating plate and the rotating shaft, not between the rotating shaft side member and the rotating plate side member. For example, an elastic member made of a coil spring may be arranged in the axial direction, with one end fixed to the rotating shaft and the other end fixed to the rotating plate. [Explanation of symbols]

[0063] 1 Powder packaging equipment 8 Powdered medicine container 8a Annular groove 9 Powdered medicine scraping device 13, 13a, 13b Rotating members 21 Rotation axis 22 Driving member (shaft side member) 23 Rotating Plate 24 Mounting board (plate side component) 25 Follower member (plate side member) 26 Elastic Members 29 Scraping board 51 First driving member (shaft side member) 52 Second driving member (shaft side member) 52c Engagement part 53 Follower member (plate side member) 53b Engaged part 54 Elastic member 61 First driving member (shaft side member) 62 Second driving member (shaft side member) 63 Fixed plate (shaft side member) 64 Follower member (plate side member) 64b Engagement part 65 Elastic Members

Claims

1. A powdered medicine scraping device for scraping out powdered medicine supplied to a powdered medicine storage member having a groove with a circular cross section, a rotating shaft that can be rotated and a rotating plate that is rotated by the rotating shaft and has an outer periphery in contact with the groove, In the powder medicine scraping device, a scraping plate is provided on the rotating plate, A powdered medicine scraping device, characterized in that the rotating plate is elastically movable in a radial direction relative to the rotating shaft.

2. The powdered medicine scraping device as described in claim 1, characterized in that an elastic member is provided between the rotating shaft and the rotating plate, and the elastic member is a coil spring that can expand and contract in a direction other than the radial direction of the rotating shaft.

3. The elastic member is provided between a shaft side member provided on the rotating shaft and a plate side member provided on the rotating plate, the shaft side member is a drive member fixed to the rotating shaft, The plate-side member includes a mounting base to which the rotating plate is detachably attached, and a driven member fixed to the mounting base, The driving member is provided between the mounting base and the driven member, 3. The powdered medicine scraping device according to claim 2, wherein the elastic member is provided between the driving member and the driven member.

4. 2. The powdered medicine scraping device according to claim 1, further comprising an elastic member provided between said rotating shaft and said rotating plate, said elastic member being a coil spring capable of expanding and contracting in a radial direction of said rotating shaft.

5. The elastic member is provided between a shaft side member provided on the rotating shaft and a plate side member provided on the rotating plate, the shaft side member includes a first driving member fixed to the rotating shaft and a second annular driving member fixed to the first driving member, the plate-side member includes a mounting base plate to which the rotating plate is detachably attached, an elastic member receiving block fixed to the mounting base plate, and an annular driven member fixed to the mounting base plate; The second driving member is provided between the mounting base plate and the driven member, 5. The powdered medicine scraping device according to claim 4, wherein the elastic member is provided between the second driving member and the elastic member receiving block.

6. The powdered medicine scraping device described in claim 1, characterized in that an elastic member is provided between the rotating shaft and the rotating plate, and the elastic member is made of a ring-shaped elastic material provided between the outer peripheral surface of the shaft side member and the inner peripheral surface of the plate side member.

7. The elastic member is provided between a shaft side member provided on the rotating shaft and a plate side member provided on the rotating plate, the shaft side member includes a first driving member fixed to the rotating shaft and a second annular driving member fixed to the first driving member, the plate-side member includes a mounting base plate to which the rotary plate is detachably attached, and an annular driven member fixed to the mounting base plate; The second driving member is provided between the mounting base plate and the driven member, The powdered medicine scraping device according to claim 6, characterized in that the elastic member is provided between an outer peripheral surface of an annular protrusion formed on the second driving member and an inner peripheral surface of the driven member.

8. The powdered medicine scraping device according to any one of claims 1 to 7, characterized in that the shaft side member and the plate side member are arranged so as to be immovable in the axial direction.

9. A powder medicine packaging device comprising the powder medicine scraping device according to any one of claims 1 to 8.

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