JP2009066136A - Cleaning device of hopper of medicine packing machine and cleaning method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning device of the hopper of a medicine packing machine capable of certainly blowing off the medicine adhered to the inner surface of the hopper over the whole area of the inner surface of the hopper, and to provide a cleaning method. <P>SOLUTION: The cleaning device of the hopper of the medicine packing machine is equipped with the hopper 4 for receiving the medicine from a medicine supply part, the freely openable and closable lid 30 provided to the opening part formed to the lower end of the hopper 4 in order to charge the medicine received by the hopper 4 to parceling paper from the opening part and the nozzle 9 charged in the hopper 4 from above through a drive mechanism to blow air and also equipped with a nozzle position control means 26 for spraying air while moving the nozzle 9 in the up and down direction of the hopper 4 when the nozzle 9 is charged in the hopper 4 by the drive mechanism. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hopper that receives a medicine from a medicine supply unit, and an openable / closable opening provided in the opening so that the medicine received by the hopper can be put into a wrapping paper from the opening at the lower end of the hopper. The present invention relates to a cleaning device and a cleaning method for a hopper of a medicine packaging machine that includes a lid and a nozzle that is supplied into the hopper through a driving mechanism from above to blow air.

  The medicine packaging machine is configured to automatically dispense powders, tablets, and other medicines into the hopper based on the medicine information from the prescription, and to place it in the wrapping paper through the opening at the bottom of the hopper for sealing. Has been.

  In such a medicine packaging machine, for example, fine powder of medicine remaining in the hopper after completion of the packaging operation is periodically removed by a cleaning device.

  As the cleaning device, by discharging air with a nozzle introduced into the hopper, the medicine attached to the inner surface of the hopper is blown away, and the medicine blown off from the air suction port provided in the upper part of the hopper is recovered. What was comprised is proposed (for example, refer patent document 1).

JP 2005-40213 A

  In the configuration of Patent Document 1, the nozzle is thrown to a predetermined height inside the hopper with the openable / closable cover provided at the opening at the lower end of the hopper closed, and from the tip of the nozzle positioned at the predetermined position to the hopper By spraying air toward the inner surface, the medicine attached to the inner surface of the hopper is blown away. However, since the hopper is configured in a vertically long shape having dimensions in the vertical direction, it is placed at a predetermined position as described above. Air cannot be efficiently blown across the entire area from the positioned nozzle to the lower end of the hopper, and in particular, the chemical adhering to the inner surface of the hopper near the lid may not be blown away, leaving room for improvement. It was.

  Then, in view of the said subject, this invention aims at providing the cleaning apparatus and cleaning method of the hopper of the chemical | medical agent packaging machine which can blow off the chemical | medical agent adhering to the inner surface of a hopper reliably over the inner surface whole area. .

The present invention relates to a hopper that receives a medicine from a medicine supply unit, and an openable / closable opening provided in the opening so that the medicine received by the hopper can be put into a wrapping paper from the opening at the lower end of the hopper. A cleaning device for a hopper of a medicine packaging machine, comprising a lid and a nozzle for injecting air into the hopper from above through a drive mechanism and blowing air, wherein the nozzle is operated by the drive mechanism. It is characterized by comprising nozzle position control means for blowing air while moving the nozzle in the vertical direction of the hopper when thrown into the hopper.
Also, the medicine received from the medicine supply section is received by a hopper, and the received medicine is put into the wrapping paper by opening the openable lid provided at the opening at the lower end of the hopper so as to be sealed. In the medicine packaging machine configured as above, the hopper cleaning method of the medicine packaging machine for cleaning the inside of the hopper by throwing the nozzle into the hopper from above and blowing air, wherein the nozzle is the hopper It may be a cleaning method for a hopper of a medicine packaging machine, wherein cleaning is performed by blowing air while moving at a plurality of locations in the vertical direction.
Air can be blown while moving the nozzle in the vertical direction of the hopper by the nozzle position control means. In comparison, the medicine can be blown off by spraying air evenly over the entire inner surface of the hopper. The blown medicine is collected from the suction port provided in the upper part of the hopper.

The nozzle position control means positions the nozzle at the first position on the lower end side in the vertical direction of the hopper, then positions the nozzle at the second position higher than the first position, and then from the second position. It may be a means for retracting outside the hopper after being positioned at the first position for a predetermined time.

  Detecting means for detecting that the sensor is located at the two positions, and detecting the position of the lid from the second position to the first position for a predetermined time based on an output signal when the detector detects the position. You may provide the open drive means which makes an open state.

  In order to move the nozzle closer to and away from the hopper, the nozzle is attached to a movable body movable by a second drive mechanism, and before the nozzle is inserted into the hopper by the first drive mechanism for nozzle injection, A plate that closes the upper end of the hopper is integrated with the movable body, the plate is provided with a hole for the nozzle to pass through, and the nozzle is inserted into the hopper through the hole by the first drive mechanism. May be.

  The nozzle may be composed of a pipe formed in an arc shape.

  Air can be blown while moving the nozzle in the vertical direction of the hopper by the nozzle position control means, so that the tip of the nozzle can be approached over the entire inner surface of the hopper, and when the nozzle is blown at a single location In comparison, the medicine can be blown off by spraying air evenly over the entire inner surface of the hopper. Therefore, it is possible to provide a hopper cleaning device and cleaning method for a medicine packaging machine that can reliably blow off the medicine adhering to the inner surface of the hopper over the entire inner surface.

Detecting means for detecting that the sensor is located at the two positions, and detecting the position of the lid from the second position to the first position for a predetermined time based on an output signal when the detector detects the position. In the case of providing an opening driving means for opening, air can be discharged to the outside through the opening with the nozzle tip close to the lid, so the gap between the lid and the opening at the lower end of the hopper There is an advantage that it is possible to blow off the adhering drug, the drug adhering to the back side of the lid (the outer surface located outside the hopper), or the drug adhering to the outer surface of the lower end side of the hopper.

In order to move the nozzle closer to and away from the hopper, the nozzle is attached to a movable body movable by a second drive mechanism, and before the nozzle is inserted into the hopper by the first drive mechanism for nozzle injection, A plate that closes the upper end of the hopper is integrated with the movable body, and the plate is provided with a hole for the nozzle to pass through, and the nozzle is inserted into the hopper through the hole by the first drive mechanism. Thus, for example, in the case of a configuration in which the plate and the nozzle are not interlocked, compared to a configuration in which a swing arm for inserting the nozzle is positioned on one side of the plate so as not to interfere with the plate, There is an advantage that not only the size can be reduced, but also the time until the nozzle is introduced into the hopper can be shortened. In addition, since the moving force of the nozzle can be reduced, the nozzle moving actuator can be reduced accordingly, and the size can be further reduced.

  When the nozzle is constituted by a pipe formed in an arc shape, there is an advantage that the spray angle of the nozzle with respect to the inner surface of the hopper can be changed as the nozzle moves in the vertical direction.

Hereinafter, a medicine packaging machine according to an embodiment of the present invention will be described with reference to the drawings. 6 and 8 show a front view and a perspective view of the medicine packaging machine in which the upper cover 1 is swung around the horizontal axis with respect to the lower base 2 to be opened.
The main body of the medicine packaging machine has a lower base 2 made of a rectangular parallelepiped long in the left-right direction and an upper cover 1 provided on the lower base 2 so as to be able to open and close around a horizontal axis. The lower base 2 has a rotary table 3 that rotates intermittently around the vertical axis, and a predetermined amount cut out by a cutout portion (not shown) outward in the radial direction of the rotary table 3. A hopper 4 formed in a funnel shape narrowed toward the lower side where powdered powder is introduced, and a wrapping paper 5 (see FIGS. 2 to 4) made of a heat-weldable sheet from an opening 4 A at the lower end of the hopper 4. A heat sealing device 6 for charging and sealing the wrapping paper 5 is provided, and a cleaning device 7 for the hopper 4 that blows and collects the powder adhering to the hopper 4. The rotary table 3 and the cutting part constitute a medicine supply part. The opening 4A is an opening that is inclined obliquely so as to be positioned downward in the direction of movement of the wrapping paper 5 so that the medicine to be introduced by opening the lid 30 is located at one place, that is, at the end of the wrapping paper 5 in the movement direction. However, it may be an opening formed in the horizontal direction.

  The wrapping paper 5 includes a wrapping paper roll (not shown) wound in a roll shape. The wrapping paper is fed from the wrapping roll by a feeding device and printed on the fed wrapping paper. After the patient information is printed on the apparatus, the heat is applied to each wrapping paper into which the medicine is loaded from the hopper 4 constituting the medicine feeding apparatus in order to put the medicine into the wrapping paper 5. The sealing device 6 is configured to be heat sealed.

As shown in FIGS. 1 to 4, the cleaning device 7 includes a nozzle 9 that is inserted into the hopper 4 from above through a first drive mechanism 8 and blows air, and the first drive mechanism 8 is an electric motor as a driving means for rotating at least one of the three rotating rollers 10, 11, 12 for moving and guiding the nozzle 9 into the hopper 4, and at least one of the three rotating rollers 10, 11, 12. And a motor 13. The nozzle 9 is curved in an arc shape, but may be a straight shape. The nozzle 9 is made of a stainless steel metal material, but may be made of a hard plastic or the like depending on circumstances. Although not shown, the base end portion of the nozzle 9 is connected to a valve 20 described later via an air supply hose.

As shown in FIGS. 1 to 4, the rotating rollers 10, 11, and 12 include a pair of lower rotating rollers 10 and 11 that support the lower surface of the nozzle at two locations in the movement direction, and the two A lower rotating roller located at an intermediate portion of the lower rotating rollers 10 and 11 and having one upper rotating roller 12 supporting the upper surface of the nozzle 9, and positioned on the rear side in the nozzle moving direction by the electric motor 13. By rotating 11, the nozzle 9 is configured to move.

The rotating rollers 10, 11, 12 protrude upward at a substantially central position in the left-right width direction of the movable body 14, which will be described later, and are attached to a plate plate 15 that is long in the front-rear direction and has substantially the same dimension as the front-rear dimension of the movable body 14. ing. More specifically, one end of the support shaft 10a of one lower rotating roller 10 located on the front side in the moving direction is supported on the plate plate 15 from one surface side (nozzle 9 installation side), and the plate The drive shaft of the electric motor 13 fixed to the plate 15 from the other surface side (nozzle 9 non-installation side) is projected to the nozzle 9 side through a hole 15a formed in the plate plate 15, and the projected drive is performed. The other lower rotating roller 11 is fitted on the shaft. Further, the upper rotating roller 12 is pivotally supported on the front end portion (front end portion) of a swinging member 16 which is swingably mounted around the horizontal axis Y through a pin P on the plate plate 15. As shown in FIG. 5, a coil spring 17 as an elastic body for moving and urging the swinging member 16 in the forward downward direction is attached across the lower portion of the front end of the plate plate 15 and the front end of the swinging member 16. The upper rotating roller 12 is urged downward by the coil spring 17 to press the nozzle 9 against the lower rotating roller 11 so that the rotational force of the driven lower rotating roller 11 is reliably applied to the nozzle 9. To be able to communicate. The rocking member 16 includes a top plate portion 16A and a pair of left and right side plate portions 16B and 16B suspended from both left and right ends of the top plate portion 16A, and between the pair of left and right side plates 16B and 16B, Both ends of the pin P are pivotally supported.

Each of the rotating rollers 10 or 11 or 12 is made of synthetic rubber or synthetic resin, and is provided with large-diameter portions 10B, 10B or 11B, 11B or 12B, 12B at the left and right ends of the shaft portion 10A or 11A or 12A. Tapered surfaces 10C, 11C, or 12C, which are positioned downward toward the shaft portion side, are provided on the inner portions of the diameter portions 10B, 10B or 11B, 11B, 12B, 12B, and the shaft portion 10A, 11A, or 12A and the right and left tapers are provided. Positioning in the left-right direction perpendicular to the moving direction of the nozzle 9 can be performed by inserting a part of the nozzle 9 into the recess 10D or 11D or 12D formed by the surface 10C or 11C or 12C. The contact area of the nozzle 9 with respect to each rotating roller 10 or 11 or 12 is configured to increase. .

As shown also in FIG. 1, the nozzle 9 is a plate-like shape that is movable by the second drive mechanism 18 so as to be moved closer to and away from the hopper 4, and is substantially rectangular in plan view (in the figure, it is rectangular) After mounting the nozzle 9 in a state of being positioned on the movable body 14 (which may be a square) and moving the nozzle 9 closer to the hopper 4, the nozzle 9 is moved to an electric motor (driving means) for the rotating roller. ) 13 to be put into the hopper 4. By bringing the nozzle 9 closer to the hopper 4 in this way, the moving distance of the nozzle 9 can be shortened, and there is an advantage that the second drive mechanism 18 can be reduced in size.

Before the nozzle 9 is introduced into the hopper 4 by the first driving mechanism 8 for the rotating roller, a substantially square plate-like plate 19 for closing the upper end of the hopper 4 is provided. Then, the upper end bent portion 19B of the upper and lower plate portions 19A at the rear end of the plate 19 is positioned at the front end of the movable body 14 and is inserted into the insertion port formed at the lower end of the vertically oriented front plate portion 14A. It is inserted (integrated) by welding (it may be screwed) or the like. Therefore, the plate 19 can be moved together only by moving the movable body 14. The plate 19 is provided with a hole 19A through which the nozzle 9 passes, and the nozzle 9 can be introduced into the hopper 4 through the hole 19A.

  As shown in FIGS. 1 to 4, the second drive mechanism 18 includes a rack 21 fixed along one side end in the left-right width direction of the movable body 14 along the front-rear direction, and a gear formed on the upper surface of the rack 21. A gear 22 that meshes with the portion 21a from above, and an electric motor 23 that is fixedly secured to the fixing member 53 of the lower base 2 via a bracket 54 so that the output shaft 23A penetrates and is fixed to the gear 22 to rotate the gear 22. Thus, the movable body 14 and the plate 19 can be integrally moved in the front-rear direction by controlling the electric motor 23 to rotate forward and backward.

A valve 20 for switching between a supply state for supplying air for spraying to the nozzle 9 and a non-supply state for not supplying the nozzle 9 is attached to the bracket 54, and the movable body 14 is brought closer to the hopper 4 by the second drive mechanism 18. The valve 20 is configured to be switched to a supply state by moving the valve to the position. That is, the large-diameter gear 25 that rotates integrally with the rotation operation unit 24 of the valve 20 is engaged with the gear 22, and the large-diameter gear 25 is rotated by controlling the electric motor 23 to rotate forward and reverse. The valve 20 can be switched between the supply state and the non-supply state by rotating the rotation operation unit 24 via the contact member 25A that rotates integrally with the large-diameter gear 25.

  As shown in FIG. 15, the nozzle 9 is provided with nozzle position control means 26 for controlling the drive mechanism 8 so as to blow air at a plurality of positions in the vertical direction of the hopper 4 for a predetermined time. In this way, it is possible to reliably and efficiently blow off the drug adhering in the entire region. The lid 30 that closes the lower end opening 4A of the hopper 4 is opened to discharge the air to the outside of the hopper 4 only for a predetermined time while the nozzle 9 is introduced into the hopper 4 and sprayed with air. I am doing so. That is, as will be described later, while the nozzle is positioned at a first position below the upper and lower positions for a predetermined time, the lid 30 is opened, and the gap between the lid and the opening 4A at the lower end of the hopper is set. It is configured to be able to blow off the adhering medicine, the medicine adhering to the back side of the lid (the outer face located outside the hopper), or the medicine adhering to the outer face on the lower end side of the hopper. ing.

The nozzle position control means 26 positions the nozzle 9 at a first position on the lower end in the up-down direction of the hopper 4 for a predetermined time, and then positions the nozzle 9 at a second position higher than the first position for a predetermined time, Next, the first position is moved from the second position to the first position for a predetermined time and then retracted out of the hopper 4. The nozzle 9 is moved up and down in the hopper 4 a plurality of times while moving in the hopper 4. The structure which blows away a chemical | medical agent may be sufficient. Moreover, the structure which blows away a chemical | medical agent may be sufficient by making it position over 3 positions for a predetermined period.

Specifically, as shown in FIGS. 2 and 15, the first sensor 27, the second sensor 28, and the nozzle 9 as detection means for detecting that they are located at the two positions are retracted outside the hopper 4. A third sensor 29 is provided as detection means for detecting that the vehicle is located at the standby position.
The sensors 27, 28, and 29 are configured so that the joint 9 </ b> B connecting the hose for supplying air provided at the base end of the nozzle 9 blocks the sensors 27, 28, and 29, so that the nozzle 9 is in the first position. Alternatively, it is configured to detect that it is located at the second position or the standby position. These sensors 27, 28, and 29 may be contact sensors such as limit sensors in addition to non-contact sensors such as magnetic sensors and ultrasonic sensors, in addition to photoelectric sensors that include a light emitting unit and a light receiving unit. Although not shown, the joint portion 9B, the valve 20 and a later-described blowing pump (not shown) are connected to each other via an air hose.

Therefore, when the first sensor 27 outputs a detection signal, it is determined that the tip of the nozzle 9 is located at the first position, and the electric motor 13 is reversed to raise the nozzle 9. The second sensor 28 outputs a detection signal when the nozzle 9 is raised, so that it is determined that the tip of the nozzle 9 is located at the second position, and this time the electric motor 13 is rotated forward to lower the nozzle 9. Let When the first sensor 27 outputs a detection signal due to this lowering, it is determined that the tip of the nozzle 9 is positioned again at the first position, the electric motor 13 is stopped driving for a predetermined time, and the lid 30 is stopped for a predetermined time. Opening drive means 31 for opening is provided.

  10 to 14, the lid 30 is attached to the side surface of the hopper 4 so as to be swingable around a horizontal axis X, and the lid 30 is opened and closed from the side surface side of the hopper 4. Thus, the opening / closing device 32 is provided.

  An operation in which the opening / closing device 32 is located on the opposite side of the horizontal axis X of the lid 30 from the lid 30 and does not protrude from the width W (see FIG. 14) of the side surface of the hopper 4. The piece 33 and the operation piece 33 are swung from a direction perpendicular to the side surface of the hopper 4 to switch the lid 30 between an open posture in which the lid 30 is substantially vertical and a closed posture in which the opening 4A of the hopper 4 is closed. And a plate-like operation member 34 configured to be opened and closed so as not to protrude from the width of the side surface of the hopper 4.

  A spring 35 is provided as a biasing member for closing and biasing the lid 30 toward the closing side, and the operation piece 33 is opened by the operation member 34 against the biasing force of the spring 35. is doing.

  The operation member 34 comes into contact with the operation piece 33 and presses the operation piece 33 to open the lid 30 around the X axis, and the operation member 34 contacts the operation piece 33. The contact portion is constituted by a roller 36 made of an elastic material. A motor for rotating the support shaft 55 by attaching the upper end of the operation member 34 to a stepped support shaft 55 having a circular cross-sectional shape supported in a cantilevered manner so as to be rotatable on the fixed member side (see FIG. A gear box 56 that shifts the power from (not shown) is attached to the fixed member 57. The support shaft 55 is integrally formed with a large-diameter shaft portion 55A penetratingly supported on the gear box 56 side (the back side in the drawing) and the other end side (the near side in the drawing) of the large-diameter shaft portion 55A. A cylindrical portion 34A integrated with the upper end of the operation member 34 is externally fitted to the small-diameter shaft portion 55B, and the two are connected to each other so as to be integrally rotatable using screws. By rotating the support shaft 55, the operation member 34 can be swung through the cylindrical portion 34A.

  A U-shaped attachment member 37 that is open in a side away from the side surface is fixed to the side surface of the hopper 4, and the lid 30 is swingably supported on both side surfaces of the attachment member 37. 38 is provided with a box-shaped reinforcing portion 39 that opens to one side surface at a portion that allows the lid 30 to pass through the shaft 38, and the bent portion with the upper end of the reinforcing portion 39 bent obliquely upward is operated. It is configured as a piece 33.

The mounting member 37 is fixed by screwing a pair of left and right screws N to a fixing member 48 fixed to the side surface of the hopper 4. On the free end side of the left and right side walls 49A, 49A of the mounting member 37, vertical grooves 49M are formed, and the screws N, N are prevented from loosening and coming off in the left and right grooves 49M, 49M. A retaining plate 50 is inserted. The retaining plate 50 has a rectangular first plate portion 50A facing the heads of the screws N, N, and bends 90 degrees from the left and right ends of the first plate portion 50A to the surface side of 49A, 49A and is vertically long. The second plate portions 50B and 50B are connected to each other, and the second plate portions 50B and 50B and the left and right side walls 49A and 49A are penetrated by the rod-shaped members (pins) 51, and the projecting ends of the pins 51 penetrated are respectively provided. The retaining plate 50 is fixed to the mounting member 37 by performing a retaining process with the retaining pins 52. The first plate portion 50A is provided with tool insertion holes 50a and 50a so that the screws N and N can be tightened. The diameter of the tool insertion hole 50a is smaller than the outer diameter of the screw N. The pin 51 also serves as a support member for winding and supporting one end of the spring 35, and the other end of the spring 35 is wound and supported on the lid 30 side.

As shown in FIG. 15, the cleaning device 7 further includes a solenoid 40 for dropping the remaining medicine adhering to the inner surface by vibration by hitting the side surface of the hopper 4, and the start side in the feeding direction of the wrapping paper 5. Paper gripper closing means 42 for closing a pair of left and right paper grippers 41, 41 (see FIG. 7) for preventing the drug from being caught in the sealing surface. The upper end of the hopper 4 is provided with air suction ports 43 and 44 in two upper and lower stages, and a plurality of through holes 43A and 44A are provided on the front side of the suction ports 43 and 44. The suction port 43 is connected to a hopper dust collecting fan (not shown) via a hose, and the lower suction port 44 is a switching valve to a suction port of a vacuum cleaner (not shown) provided in the medicine packaging machine. 45 is connected. The vacuum cleaner is provided with a nozzle for a vacuum cleaner, and the nozzle can clean the medicine packaging machine and the area around the medicine packaging machine. Further, a sensor (a Hall IC sensor, but may be another sensor) for detecting that the switching valve 45 is switched to the suction path from the suction port 44 to the cleaner 46 is provided.

  The procedure for cleaning by the cleaning device 7 will be described based on the block diagram of FIG. 15 and the flowchart of FIG.

  First, the packaging is finished, and it is confirmed whether the dust collection work of the hopper 4 is prioritized (step 1). If the dust collection work of the hopper 4 is not prioritized, a work mode for cleaning the rotary table 3 which is a oyster disk is entered (step S2). If the dust collection work of the hopper 4 is prioritized, the hopper 4 plate plate (shutter) 15 is closed (step S3), the dust collection timer of the hopper 4 is set for a time, and air suction from the upper suction port 43 is started (step S4). Thereafter, when the sensor 47 is turned on (the switching valve 45 is switched so that the switching valve 45 can suck from the suction port 44), the cleaner 46 is turned on, the paper grips 41 and 41 are closed, and the hopper The solenoid 40 is driven to shake off the remaining medicine adhering to the inner surface of 4 by vibration (step S6). After waiting for the dust collection timer of the hopper 4 to elapse (step S7), the electric motor 13 is driven in the normal rotation direction to start the injection of the spray nozzle 9 into the hopper 4 (step S8). A pump (not shown) is turned on (step S9). When the first sensor 27 is turned on, it is determined that the tip of the nozzle 9 is located at the first position, and the electric motor 13 is driven in the reverse direction to raise the nozzle 9 and the second sensor 28 is turned on. Thus, it is determined that the tip of the nozzle 9 is located at the second position, which is the upper position, and it is determined that the number of nozzle operations has been completed (step 10). Thereafter, the electric motor 13 is driven again in the forward rotation direction, whereby the first sensor 27 is turned on to determine that the tip of the nozzle 9 is located at the valve position, that is, the first position. Is stopped (step S11). Subsequently, after the vacuum cleaner 46 is turned off (step S12), the hopper valve, that is, the lid 30 is operated half-opened, and the spray timer (not shown) of the nozzle 9 is set for a time to continue spraying. The medicine adhered between the lid 30 and the opening 4A at the lower end of the hopper 4, the medicine adhered to the back side of the lid 30 (the outer surface located outside the hopper), or the lower end side of the hopper 4 The medicine or the like adhering to the outer surface can be blown off (step S14). The blown-off chemical is sucked by a suction fan F (see FIGS. 2 to 4) installed near the lower end of the hopper 4 and collected in a dust collecting part (not shown). . When the spraying time has elapsed (step S15), after the spraying pump is turned off, the paper grippers 41 and 41 are opened to stop the hitting operation of the solenoid 40, and the electric motor 13 is turned on until the third sensor 29 is turned on. By driving in the reverse direction, the spray nozzle 9 is returned to the standby position (step S17). Thereafter, the electric motor 23 is driven to open the plate plate (shutter) 15 of the hopper 4 (step S17), and it is confirmed whether the dust collection work of the hopper 4 is prioritized (step S19). If it is, the operation mode for cleaning the rotary table 3 which is the oyster disk is entered (step S2), and if the dust collection work of the hopper 4 is not prioritized, the dust collection work is terminated.

It is a perspective view which shows the attachment part structure of a nozzle. It is a longitudinal cross-sectional view of the principal part in which the nozzle is located in the standby position. It is a longitudinal cross-sectional view of the principal part in which the nozzle is located in the 1st position. It is a longitudinal cross-sectional view of the principal part in which the nozzle is located in the 2nd position. It is a rear view which shows the attachment part structure of a nozzle. It is a schematic front view of the medicine packaging machine which opened the upper cover. It is CC sectional view taken on the line in FIG. It is a schematic perspective view of the medicine packaging machine which opened the upper cover. It is a perspective view which shows the suction opening of a hopper upper part. It is a perspective view which shows the opening / closing apparatus of the lid | cover of a hopper lower part. It is a perspective view which shows the opening / closing apparatus of the lid | cover which shows the state which the lid | cover of the hopper lower part opened. It is a front view which shows the opening / closing apparatus of the lid | cover of a hopper lower part. It is sectional drawing which shows the opening / closing apparatus of the lid | cover of a hopper lower part. It is a side view which shows the opening / closing apparatus of the lid | cover of a hopper lower part. It is a control block diagram of a cleaning device. It is a flowchart which shows operation | movement of the cleaning apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Upper cover, 2 ... Lower stand, 3 ... Rotary table, 4 ... Hopper, 4A ... Opening part, 5 ... Packaging paper, 6 ... Heat seal apparatus, 7 ... Cleaning apparatus, 8 ... Drive mechanism, 9 ... Nozzle, 9B ... Joint part, 10, 11, 12 ... Rotating roller, 10A ... Shaft part, 10B, 10B ... Large diameter part, 10C ... Tapered surface, 10D ... Recessed part, 10a ... Support shaft, 13 ... Electric motor (drive means), 14 DESCRIPTION OF SYMBOLS ... Movable body, 15 ... Plate plate, 16 ... Swing member, 17 ... Coil spring, 18 ... Drive mechanism, 19 ... Plate, 19A ... Hole, 20 ... Valve, 21 ... Rack, 22 ... Gear, 23 ... Electric motor, 23A ... output shaft, 24 ... rotation operation section, 25 ... large diameter gear, 26 ... nozzle position control means, 27, 28, 29 ... sensor, 30 ... lid, 31 ... opening drive means, 32 ... opening / closing device, 33 ... operation Piece 34, operating member 35 Spring, 36 ... Roller, 37 ... Mounting member, 38 ... Shaft, 39 ... Reinforcing part, 40 ... Solenoid, 42 ... Paper gripper closing means, 43, 44 ... Suction port, 45 ... Switching valve, 46 ... Vacuum cleaner, 47 ... Sensors 48 ... fixing members 49A, 49A ... left and right side walls 49M ... grooves 50 ... stopping plates 50A ... first plate part 50B ... second plate part 50a ... tool insertion hole 51 ... pin 52 ... Stop pin, 53... Fixing member, 54. Bracket, 55. ... Pin, W ... Width, X, Y ... Horizontal axis

Claims (6)

A hopper for receiving a medicine from the medicine supply unit, and an openable / closable lid provided in the opening for feeding the medicine received by the hopper into the wrapping paper from the opening at the lower end of the hopper, A cleaning device for a hopper of a medicine packaging machine comprising a nozzle for injecting air into the hopper from above through a drive mechanism and blowing air,
A drug packaging machine comprising nozzle position control means for blowing air while moving the nozzle in the vertical direction of the hopper when the nozzle is introduced into the hopper by the driving mechanism. Hopper cleaning device. The nozzle position control means positions the nozzle at the first position on the lower end side in the vertical direction of the hopper, then positions the nozzle at the second position higher than the first position, and then from the second position. The hopper cleaning device for a medicine packaging machine according to claim 1, comprising means for retracting the hopper out of the hopper after being positioned at the first position for a predetermined time.   Detecting means for detecting that the sensor is located at the two positions, and detecting the position of the lid from the second position to the first position for a predetermined time based on an output signal when the detector detects the position. The apparatus for cleaning a hopper of a medicine packaging machine according to claim 2, further comprising an opening drive means for bringing the medicine into an open state.   In order to move the nozzle closer to and away from the hopper, the nozzle is attached to a movable body movable by a second drive mechanism, and before the nozzle is inserted into the hopper by the first drive mechanism for nozzle injection, A plate that closes the upper end of the hopper is integrated with the movable body, and the plate is provided with a hole for the nozzle to pass through, and the nozzle is inserted into the hopper through the hole by the first driving mechanism. The hopper cleaning device for a medicine packaging machine according to any one of claims 1 to 3.   The said nozzle is comprised from the pipe formed in circular arc shape, The cleaning apparatus of the hopper of the chemical | medical agent packaging machine of Claim 3 or 4 characterized by the above-mentioned. The medicine is received by a hopper that receives a medicine from the medicine supply section, and the medicine that has been received is placed in the wrapping paper by opening the openable lid provided at the opening at the lower end of the hopper and sealed. In the medicine packaging machine, a hopper cleaning method for a medicine packaging machine for cleaning the inside of the hopper by blowing air into the hopper from above and blowing air,
A cleaning method for a hopper of a medicine packaging machine, wherein the nozzle performs cleaning by blowing air while moving at a plurality of locations in the vertical direction of the hopper.

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