Powder medicine scraping device and powder 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-shaped disk or distribution plate) having an annular groove with an arc-shaped cross section, and then uses a rotating plate with a scraping plate to distribute and scrape out the powder medicine in the annular groove one packet at a time (see Patent Documents 1 and 2).

[0003] In such powder medicine dispensing devices, if the outer surface of the rotating plate of the powder medicine dispensing member does not fit tightly into the annular groove of the powder medicine container, powder medicine will leak through the gap between the rotating plate and the annular groove when the powder medicine is dispensed or when the powder medicine container is rotated, resulting in inconsistent packaging volume and missed dispenses. For this reason, a centering operation (alignment operation) is performed for each powder medicine dispensing device to align the center of rotation of the rotating plate of the powder medicine dispensing member with the center of curvature of the annular groove of the powder medicine container. In practice, the center of rotation of the rotating plate is set lower than the center of curvature of the annular groove, and silicone rubber attached to the outer periphery of the rotating plate is pressed against the annular groove.

[0004] However, because the powder medicine container has a rotating annular groove, and the rotating plate is supported by a rotating shaft at the end of the arm and can rotate, while also rising and falling relative to the annular groove of the powder medicine container, the alignment process was difficult, time-consuming, and labor-intensive. Furthermore, because each powder medicine packaging machine is different, adjustments can only be made on machines that have been aligned, and once the powder medicine scraping device is disassembled, the alignment process must be performed 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, generating wear particles. Therefore, during the alignment process, careful attention must be paid to the amount of pressure applied to prevent wear particles from being packaged with the powder medicine. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-179967 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-247841 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 objective is to provide a powder medicine scraping device and a powder medicine packaging device that can simplify the process 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 problem, the powder medicine scraping device of the present invention is A powdered medicine scraping device that scrapes out powdered medicine supplied to a powdered medicine storage member having a groove with an arc-shaped cross section, A rotating shaft that can be rotated, and a rotating element that can be rotated by the rotating shaft and a mounting board for , the mounting substrate 2 times Turning plate is attached In the powder medicine scraping device, a scraping plate is provided on the rotating plate, The rotation shaft and the mounting substrate are arranged so that the rotation shaft It is characterized in that it is provided so as to be movable in the radial direction.

[0008] In the above means, The rotation axis and the mounting board are positioned relative to each other. Since it is elastically movable in the radial direction, even if the axis of the rotation shaft of the powdered medicine scraping member and the center of curvature of the groove of the powdered medicine storage member do not coincide, when the outer periphery of the rotating plate rotates along the inner surface of the groove, the elastic member Rotating shaft and mounting board is the rotation axis of The powdered medicine scraping member moves in the radial direction, and the axis of the rotation shaft of the powdered medicine scraping member is automatically aligned with the center of curvature of the groove of the powdered medicine containing member.

[0009] As a specific means, the rotation axis and the Mounting boardPreferably, an elastic member is provided between the rotating shaft and the rotating shaft, 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 a shaft side member provided on the rotating shaft and the Mounting board and the shaft-side member is a driving member fixed to the rotary shaft, The plate side member is Recording a mounting substrate and a driven member fixed to the mounting substrate, the driving member is provided between the mounting substrate and the driven member, The elastic member is preferably provided between the driving member and the driven member.

[0010] In addition, the rotation axis and the Mounting board and an elastic member may be provided between the rotating shaft and the rotating shaft, the elastic member being a coil spring that can expand and contract in a radial direction of the rotating shaft. In this case, the elastic member is a shaft side member provided on the rotating shaft and the Mounting board and the shaft side member includes a first driving member fixed to the rotary shaft and a second annular driving member fixed to the first driving member, The plate side member is Recording a mounting base plate, 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 substrate and the driven member, The elastic member is preferably provided between the second driving member and the elastic member receiving block.

[0011] Furthermore, the rotation axis and the Mounting board An elastic member is provided between the ,ring It may be a resilient material. 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 rotary shaft and a second annular driving member fixed to the first driving member, The plate side member is Recording a mounting base plate and an annular driven member fixed to the mounting base plate, the second driving member is provided between the mounting substrate and the driven member, The elastic member is preferably 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.

[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. [Effects of the Invention]

[0014] According to the present invention, The rotation axis and the mounting board are positioned relative to each other. Since it is elastically movable in the radial direction, even if the axis of the rotation shaft of the powdered medicine scraping member and the center of curvature of the groove of the powdered medicine storage member do not coincide, when the outer periphery of the rotating plate rotates along the inner surface of the groove, the elastic member Rotating shaft and mounting board is the rotation axis of The powdered medicine scraping member moves in the radial direction, and the axis of the rotation shaft of the powdered medicine scraping member is automatically aligned with the center of curvature of the groove of the powdered medicine containing member. This simplifies the alignment process between the groove of the powder medicine container and the powder medicine scraping member. Even if the axis of the rotating shaft and the center of curvature of the groove of the powder medicine container are not aligned to some extent, wear on the rotating plate and groove is reduced, freeing the operator from delicate work and reducing the mental burden. Furthermore, since the positioning of the rotating shaft and the powder medicine container does not need to be performed precisely, the alignment process can be completed in a short time. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. [Figure 2] Schematic diagram of a powder medicine packaging device. [Figure 3] FIG. [Figure 4] FIG. 2 is an exploded perspective view of the rotary member of the first embodiment as viewed from the rotary shaft side. [Figure 5] FIG. 2 is an exploded perspective view of the rotating member of the first embodiment as viewed from the rotating plate side. [Figure 6] An exploded perspective view of the rotating plate (a) and the mounting base (b). [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. 10 is an exploded perspective view of a rotary member according to a second embodiment, as viewed from the rotary shaft side. [Figure 10] FIG. 10 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 the 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 INVENTION

[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 input by a powder medicine input unit 2 is scraped out one packet at a time by a powder medicine scraping unit 3, and then packaged by a packaging unit 4. The powder medicine packaging device 1 also includes a manual tablet distribution unit 5 that manually distributes tablets one packet at a time and supplies them to the packaging unit 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 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 dispensed from the powdered medicine dispenser 2 is uniformly 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] Base 11 is disposed inside powdered medicine container 8 and has rotation motor 14 and lifting motor 15. Rotation motor 14 transmits power from its motor gear (not shown) to pulley 17 on drive shaft 16 via intermediate gear 14a and drive gear 14b. Lifting motor 15 rotates lifting gear 15b via motor gear 15a, and causes pin 5c provided on lifting gear 15b to raise and lower lifting platform 18.

[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 also supported by a lifting platform 18, and as the lifting platform 18 moves up and down, the arm 12 rotates around the drive shaft 16 at a predetermined angle between a scraping position and a retracted position.

[0024] As shown in Figures 4 and 5, the rotating member 13 is composed of 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 has a screw hole 21a formed in an eccentric position. Because the screw hole 21a is formed in 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 protrusions 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, corresponding to the rotary plate side end face of the rotary shaft 21. As shown in Figure 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. Spring receiving holes 22f are formed on both side faces of the tip of the protrusions 22b, in the tangential direction of an imaginary circle C (see Figure 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 surface of the rotating shaft 21 with the engaging recess 22c of the driving member 22 and threading the 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 a stainless steel disk with the same radius of curvature as the circular arc of the annular groove 8a of the powdered medicine container 8. An elastic edge 28 made of silicone or the like is attached to the entire outer periphery by heat fusion. A triangular mounting hole 23a is formed in the center of the rotating plate 23, and elongated positioning holes 23b are formed on both sides of the mounting hole 23a. A sweeping plate 29 is integrally formed on the surface of the rotating plate 23. The sweeping plate 29 is formed by bending a plate-like body made of stainless steel or the like to form a sweeping portion 29a and a partition portion 29b. An elastic piece 29c made of silicone or the like is integrated with the tip of the sweeping portion 29a. Part of the outer edge of the partition portion 29b is formed in an arc shape that follows the circular groove 8a of the powdered medicine container 8.

[0029] As shown in FIG. 6(b), the mounting base 24 is a stainless steel disk with 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 predetermined distance from the center. A triangular pyramidal protrusion 30 that engages with the mounting hole 23a of the rotating plate 23 is attached to the surface of the mounting base 24 facing the rotating plate. Its male thread 30a is inserted into the screw through hole 24b and attached with a nut 31. Conical mounting pins 32 that engage with the positioning holes 23b of the rotating plate 23 are attached to symmetrical positions on both sides of the protrusion 30. The mounting pins 32 are radially slidably received in notches 24d formed at positions 180 degrees apart on the outer periphery of the mounting base 24 and are biased radially outward by springs 33. The notches 24d of the mounting base 24 are covered with retaining plates 35 attached with screws 34. A positioning plate 36 having a positioning protrusion 36a is attached to and overlaps the retaining plate 35.

[0030] The driven member 25 comprises a disk portion 25a and a cylindrical portion 25b that protrudes from the outer periphery of the disk portion 25a toward the rotary plate. The portion is sized to engage with the inside of the positioning rib 24a and the positioning protrusion 36a of the mounting base 24. A central hole 25c through which the rotary shaft 21 passes is formed in the center of the disk portion 25a. As shown in FIG. 5, four bosses 25d protrude from the disk portion 25a on the rotary plate side at positions spaced a predetermined distance from the center. Each boss 25d has four screw holes 25e formed in positions corresponding to the screw through holes 24c of the mounting base 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 Figure 7, the elastic member 26 is expandable and contractible in the tangential direction of an imaginary circle C centered on the rotation shaft 21. The expansion and contraction 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 base plate 24 and the driven member 25 are fixed together by inserting a fixing screw 38 into the threaded through-hole 24c of the mounting base plate 24 and screwing it into the threaded hole 25e of the driven member 25. The rotating plate 23 is attached by engaging the triangular pyramidal protrusion 30 of the mounting base plate 24 with the mounting hole 23a and engaging the attachment pin 32 of the mounting base plate 24 with the positioning hole 23b. This allows the rotating plate 23, mounting base plate 24, and driven member 25 to rotate as a unit. Furthermore, as shown in FIG. 8, the rotating shaft side member and the rotating plate side member are immovable in the axial direction because the driving member 22 is sandwiched between the mounting base plate 24 and the driven member 25.

[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 and 43b.

[0034] Next, the operation of the powdered medicine scraping device 1 having the above-described 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, and the rotating plate 23 is pressed against the annular groove 8a, thereby separating the powdered medicine from the annular groove 8a. Next, the powdered medicine storage member 8 is rotated by a predetermined angle, and the rotating plate 23 scrapes the powdered medicine.

[0036] Next, when the rotary shaft 21 is driven by the rotary motor 14 of the powdered medicine scraping device 9, the drive 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 protrusion 22b of the drive member 22, the elastic member 26 on the front side in the rotational direction is compressed and pushes the protrusion 25f of the driven member 25, while the elastic member 26 on the rear side in the rotational direction is pulled and pulls the protrusion 25f of the driven member 25. As a result, the rotational force of the drive member 22 is transmitted to the driven member 25 via the elastic member 26, causing the driven member 25 to rotate. The rotation of the driven member 25 causes the mounting base 24 and the rotary plate 23 to rotate.

[0037] When the rotating plate 23 rotates, the powdered medicine between the rotating plate 23 and the partition portion 29b of the scraping plate 29 is scraped out by the scraping portion 29a from the annular groove 8a of the powdered medicine storage member 8 into 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 will occur between the rotating plate 23 and the annular groove 8a, resulting in powdered medicine remaining unscraped, or the rotating plate 23 will be pressed against the annular groove 8a, reducing the rotational force of the rotating plate 23. For this reason, before operating the powdered medicine scraping device 1, a centering operation is required to adjust the position of the base 11 of the powdered medicine scraping device 9 and the powdered medicine storage member 8 to align the center of rotation of the rotating plate 23 with the center of curvature of the annular groove 8a. In this embodiment, because 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 aligned with the center of curvature of the annular groove 8a, even if the centering operation does not accurately align the center of rotation of the rotating plate 23 with the center of curvature of the annular groove 8a.

[0039] That is, as shown in FIG. 7 , if the rotation center between the rotating plate 23 and the driven member 25, which is a rotating plate-side component, is offset from the center of curvature of the annular groove 8a, the rotating plate 23 contacts the annular groove 8a while rotating, deforming the elastic member 26. The driven member 25, which rotates integrally with the rotating plate 23, elastically moves relative to the rotating shaft 21, and the center of the rotating plate 23 is aligned with the center of curvature of the annular groove 8a. In this case, the rotating plate 23 rotates eccentrically relative to the rotating shaft 21. Because the center of the rotating plate 23 is automatically aligned with the center of curvature of the annular groove 8a, the alignment of the annular groove 8a of the powdered medicine storage member 8 with the powdered medicine scraping device 9 is simplified, and variations in the amount of powdered medicine delivered and residual powder are eliminated. In this embodiment, the elastic member 26 is disposed tangentially to the imaginary circle C centered on the rotating shaft 21, allowing the rotating plate 23 to closely follow the rotating shaft 21.

[0040] Second Embodiment FIG. 9 is an exploded perspective view of a rotating member 13a of a powdered medicine scraping device according to a 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 which is 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 corresponding parts are given the same reference numerals and their 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 that corresponds to the end surface of the rotating shaft 21 on the side of the rotating plate, and through holes 51b formed at positions that correspond to the screw holes 21a on the end surface of the rotating shaft 21 on the side of the rotating plate. Four screw insertion holes 51c are formed at positions 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. Engagement portions 52c are formed on the outer periphery of the second driving member 52.

[0044] The rotary shaft 21 and the first drive member 51 are fixed together by engaging the rotary plate side end surface of the rotary shaft 21 with the engagement recess 51a of the drive member 51 and threading the fixing screw 27 through the through hole 51b of the first drive member 51 and into the threaded hole 21a of the drive shaft 21. The first drive member 51 and the second drive member 52 are fixed together by inserting the fixing screw 55 into the screw insertion hole 51c of the first drive member 51 and threading it into the threaded hole 52b of the second drive 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 with screws 57 at positions a predetermined distance from the center and four screw through holes 24c are provided near the outer periphery. The spring receiving blocks 56 have spring receiving holes 56a formed in the 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 engaged portions 53b formed on its inner circumference with which the engaging portions 52c of the second driving member 52 engage.

[0047] The mounting substrate 24 and the driven member 53 are fixed together by inserting the fixing screws 38 into the threaded through holes 24c of the mounting substrate 24 and screwing them into the threaded holes 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, mounting substrate 24, and driven member 53 to rotate integrally. In addition, as shown in FIG. 12 , the engaging portion 52 of the second driving member 52 engages with the engaged portion 53b of the driven member 53, preventing the rotating shaft side member and the rotating plate side member from moving in the axial direction.

[0048] The elastic member 54 is made 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] 11, in the rotating member 13a of the second embodiment, as in the first embodiment, if the rotation center of the mounting base 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 24, which rotates integrally with the rotating plate 23, moves elastically relative to the rotation 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 alignment work between the annular groove 8a of the powdered medicine storage member and the powdered medicine scraping device 9, and eliminates variations in the amount of sachets and residual scraping.

[0051] Third Embodiment FIG. 13 is an exploded perspective view of a rotating member 13b of a powdered medicine scraping device according to a 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 which is 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 corresponding parts are given the same reference numerals and their 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 end surface of the rotating shaft 21 facing the rotating plate, and a through-hole 61b formed at a position that corresponds to the screw hole 21a in the end surface of the rotating shaft 21 facing the rotating plate. Two screw insertion holes 61c are formed at positions a predetermined distance from the center of the first driving plate 61. A circular protrusion 61d is formed in the center of the surface facing the rotating plate of the first driving member 61, and an annular edge 61e that protrudes toward the rotating plate 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 a predetermined distance from the center at a position corresponding to the screw insertion hole 61c of the first driving member 61. The surface of the second driving member 62 facing the rotary shaft is formed with an annular protrusion 62c into which the circular protrusion 61d of the first driving member 61 fits, and the surface facing the rotary plate is formed with a circular recess 62d.

[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 engaging recess 61a of the first driving member 61 and threading a fixing screw 27 through the through hole 61b of the first driving member 61 and into the threaded 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 a fixing screw 66 through the screw insertion holes 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 four screw holes 64a formed at equidistant positions around its circumference. The driven member 64 has an inner periphery formed with engaging portions 64b that engage with the outer periphery of the second driving member 62.

[0058] The mounting substrate 24 and the driven member 64 are fixed together by inserting the fixing screws 38 into the threaded through holes 24c of the mounting substrate 24 and screwing them into the threaded holes 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, mounting substrate 24, and driven member 64 to rotate integrally. Furthermore, as shown in FIG. 16 , the outer circumferential edge of the second driving member 62 engages with the engaging portion 64b of the driven member 64, preventing the rotating shaft side member and the rotating plate side member from moving in the axial direction.

[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, causing the mounting substrate 24 and the rotating plate 23 to rotate.

[0061] 15, in the rotating member 13b of the third embodiment, as in the first embodiment, if the rotation center of the mounting base 24, which is the rotating plate side member, 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 24, which rotates integrally with the rotating plate 23, moves elastically relative to the rotation 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 sachets and residual scraping.

[0062] The present invention is not limited to the above-described embodiment, and modifications and variations are possible without departing from the spirit and scope of the invention. For example, the elastic member may be provided between the rotating shaft member and the rotating plate member, and its attachment position may be changed as desired. The specific form of the elastic member is not limited to a coil spring or rubber, and may be a leaf spring or torsion spring. In particular, the elastic member may be provided directly between the rotating plate and the rotating shaft, rather than between the rotating shaft member and the rotating plate member. For example, an elastic member made of a coil spring may be disposed axially, 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 member 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 member

Claims

1. A powdered medicine scraping device that scrapes out powdered medicine supplied to a powdered medicine storage member having a groove with an arc-shaped cross section, A rotating shaft that can be rotated and a mounting substrate that is rotated by the rotating shaft are provided. In the powder medicine scraping device, a rotating plate is attached to the mounting base plate, and a scraping plate is provided on the rotating plate, A powdered medicine scraping device, characterized in that the rotating shaft and the mounting base plate are arranged so as to be movable relative to each other in a radial direction of the rotating shaft.

2. The powdered medicine scraping device described in claim 1, characterized in that an elastic member is provided between the rotating shaft and the mounting base, and the elastic member consists of 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 mounting base plate, the shaft-side member is a driving member fixed to the rotary shaft, the plate-side member includes the mounting base plate and a driven member fixed to the mounting base plate; the driving member is provided between the mounting substrate 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, wherein an elastic member is provided between the rotating shaft and the mounting base, and the elastic member is a coil spring that can expand and contract in the radial direction of the 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 mounting base plate, the shaft-side member includes a first driving member fixed to the rotary shaft and a second annular driving member fixed to the first driving member, the plate-side member comprises the mounting base plate, 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 drive member and the elastic member receiving block.

6. 2. The powdered medicine scraping device according to claim 1, wherein an elastic member is provided between the rotary shaft and the mounting base, and the elastic member is made of an annular elastic material.

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 rotary shaft and a second annular driving member fixed to the first driving member, the plate-side member includes 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, 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. 8. A powdered medicine scraping device according to claim 3, wherein the shaft side member and the plate side member are arranged so as not to be movable 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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