JP2008119023A - Fluid medicine dispensing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid medicine dispensing apparatus which can stabilize the delivery quantity of a fluid medicine from a nozzle. <P>SOLUTION: A fluid medicine dispensing apparatus which delivers the fluid medicine within a fluid medicine dispensing bottle to a fluid dispensing bottle from a delivery port part of the nozzle with the drive of a supply pump and is provided with a washing control means for washing the nozzle. The washing control means has the function of making a control so that the supply pump is driven by a time length equivalent to a preset nozzle washing time to deliver the fluid medicine from the delivery port part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a liquid medicine supply device.

  Conventionally, in medical institutions such as hospitals and pharmacies, liquid medicine supply devices that supply liquid medicine filled in liquid medicine supply bottles to liquid medicine bottles provided to patients from the liquid medicine supply bottle have been used. (For example, refer to Patent Document 1 below).

  In this type of liquid medicine supply apparatus, a plurality of liquid medicine supply bottles are mounted, a mounting body that is rotatable about the vertical axis is provided, and the mounting body is disposed above the mounting body so as to be rotatable about the vertical axis. The nozzle is attached to the body at intervals in the circumferential direction, and the mounting body and the attachment body are rotated about the vertical axis, and the liquid medicine is applied to the liquid medicine bottle through the nozzle from the supply pipe inserted into the liquid medicine supply bottle. There is something that has been made to supply.

In the liquid medicine supply device having the above-described configuration, the mounting body and the attachment body are rotated about the vertical axis so that the nozzle corresponding to the liquid medicine supply pipe inserted into the predetermined liquid medicine supply bottle is positioned to supply the liquid medicine to the liquid medicine bottle. The liquid medicine is intermittently rotated to discharge the liquid medicine from the nozzle to the liquid medicine bottle.
JP 2003-325639 A

In the liquid medicine supply device, even if the liquid medicine is completely discharged from the discharge part of the nozzle to the liquid medicine bottle, the liquid medicine is often left attached to the discharge part. And, for example, in the case where the prescription work of the liquid medicine supply device is finished and the prescription work is started the next day, when the liquid medicine adhering to the discharge part of the nozzle has evaporated, the viscosity of the liquid medicine is It can be high or hardened in some cases.
If it does so, when the liquid medicine is newly discharged from the discharge part of a nozzle with the above-mentioned liquid medicine adhering to the discharge part of a nozzle, it will be considered that liquid medicine becomes difficult to discharge.

  Then, this invention makes it a subject to provide the liquid medicine supply apparatus which can stabilize the discharge amount of the liquid medicine from a nozzle in view of the said subject.

  The present invention is a liquid medicine supply device in which liquid medicine in a liquid medicine supply bottle is discharged from a discharge port of a nozzle by driving a supply pump to supply liquid medicine to the liquid medicine bottle, and the nozzle is washed Cleaning control means is provided, and the cleaning control means has a function of driving the supply pump for a time corresponding to a preset nozzle cleaning time so as to discharge the liquid medicine from the discharge port of the nozzle. It is characterized by that.

In the above configuration, since the cleaning control unit drives the supply pump for a time corresponding to a preset nozzle cleaning time and discharges liquid medicine from the nozzle outlet, the nozzle outlet by the liquid medicine The liquid medicine is smoothly discharged from the discharge port portion of the nozzle.
In addition, since the liquid medicine is discharged from the nozzle outlet for a time corresponding to the nozzle cleaning time before the liquid medicine is supplied to the liquid medicine bottle, the nozzle is hygienic. It is used in the state.
In particular, when the liquid medicine contains a lot of sugar, the liquid medicine that adheres to the discharge port of the nozzle easily solidifies when the water content of the liquid medicine evaporates, but the liquid medicine is discharged from the discharge port of the nozzle. By cleaning the liquid medicine, the liquid medicine is smoothly discharged from the discharge port portion of the nozzle. Such a nozzle cleaning mode is preferably performed immediately before starting the supply of liquid medicine to the liquid medicine bottle in the cleaning control means.

  The liquid medicine supply device of the present invention is provided with a cleaning start switch for starting cleaning of the nozzle, and the cleaning control means outputs a drive signal to the supply pump so as to start cleaning of the nozzle by operating the cleaning start switch. It has the function to perform.

  In the above configuration, when the cleaning start switch is operated (ON operation), the cleaning control means outputs a drive signal to the drive unit of the supply pump only for a time corresponding to the nozzle cleaning time. Is discharged from the nozzle outlet and the nozzle outlet is cleaned.

  The liquid medicine supply device of the present invention is provided with a liquid medicine sensor that detects the presence or absence of liquid medicine discharged from the discharge port of the nozzle, and the cleaning control means detects the liquid medicine by the liquid medicine sensor for the time corresponding to the cleaning time. It is characterized by having a function of counting from.

  In the above configuration, the liquid medicine for cleaning the discharge port of the nozzle drives the supply pump only for the time corresponding to the cleaning time after detecting that the liquid medicine sensor is discharged from the nozzle. Even if air enters the nozzle and the supply pump is driven, the time during which the liquid medicine is not discharged from the nozzle outlet is not counted, and the liquid medicine is substantially discharged from the nozzle outlet before cleaning. Since the time is counted, the nozzle outlet is reliably cleaned.

  In the liquid medicine supply device of the present invention, a plurality of liquid medicine supply bottles are placed at intervals in the circumferential direction, and a placement body that is rotatable about the vertical axis is provided, and the vertical direction about the vertical axis is provided above the placement body. A nozzle is mounted on a nozzle mounting body that is rotatably arranged at intervals in the circumferential direction, and the mounting body and the mounting body are configured to intermittently rotate around the vertical axis by driving a rotary drive unit. One end of the supply pipe is inserted into the supply bottle, the other end is connected to the nozzle, and the middle of the supply pipe is connected to a supply pump provided for each liquid medicine supply bottle.

  In the above configuration, the liquid medicine supply bottle is placed on the mounting body at intervals in the circumferential direction, one end of the supply pipe is inserted into the liquid medicine supply bottle, and the middle of the supply pipe is connected to the supply pump. The other end of the supply pipe is connected to the nozzle, the rotation driving unit is driven to rotate the mounting body, the nozzle mounting body and the supply pump around the vertical axis, and the liquid medicine supply bottle to be used is in a predetermined position (where? ), The drive of the rotation drive unit is stopped, and the supply pump corresponding to the liquid medicine supply bottle is driven to discharge the liquid medicine in the liquid medicine supply bottle from the nozzle to the liquid medicine bottle.

  In the liquid medicine supply device of the present invention, the mounting body, the mounting body, and the supply pump are suspended on the top wall side of the liquid medicine supply device body and are provided so as to be intermittently rotatable about the vertical axis. It is said.

  In the above configuration, by driving the rotation driving unit, the mounting body, the attachment body, and the supply pump are rotated around the common vertical axis while being suspended on the top wall side.

  According to the liquid medicine supply device of the present invention, the cleaning control means drives the supply pump for a time corresponding to a preset nozzle cleaning time to discharge the liquid medicine from the discharge port of the nozzle. The discharge port portion of the nozzle is washed with the medicine, and the liquid medicine can be smoothly discharged from the discharge port portion of the nozzle to supply the liquid medicine to the liquid medicine bottle.

  Further, since the discharge port portion is previously cleaned by discharging the liquid medicine from the discharge port portion of the nozzle for a time corresponding to the nozzle cleaning time, the nozzle can be used in a sanitary state.

  Hereinafter, the liquid medicine supply device concerning the present invention is explained based on a drawing. 1 to 7 are configuration diagrams of the liquid medicine supply device. As shown in these drawings, the liquid medicine supply device 1 is configured to supply a liquid medicine 2 prescribed to a patient from a liquid medicine supply bottle (hereinafter simply referred to as “supply bottle”) 3 to a liquid medicine supply pipe. (Hereinafter simply referred to as “supply pipe”) 29 and is discharged to the liquid medicine bottle 4 through a liquid medicine supply nozzle (hereinafter simply referred to as “supply nozzle”) 22.

  The liquid medicine supply device 1 has a main body 6 constituting an outer frame, and the main body 6 includes a top plate (top wall) 7, a bottom plate 8, left and right side plates 11, 11, a back plate 12, and a front plate 13. Have. The bottom plate 8 is formed in a flat plate shape disposed in the middle of the main body 6 in the vertical direction. The top plate 7 is formed in a flat plate shape whose center is hollowed out in a circular shape.

  The liquid medicine supply device 1 mounts a nozzle mounting plate 53 and a plurality of supply bottles 3, which are suspended in the main body 6 and attached to the main body 6 via the rotation drive unit 17 on the top plate 7 side of the main body 6. It has the mounting body 5 and a plurality of supply pumps 18. The supply pump 18 is provided for each supply bottle 3 arranged at predetermined intervals in the circumferential direction on the mounting body 5, and is a pump generally used for this type of liquid medicine supply device 1. Alternatively, the supply pressure of the liquid medicine 2 may be changed.

  The nozzle mounting plate 53 and the mounting body 5 are formed in a ring shape in plan view, and the supply pump 18 is mounted on each of a plurality of mounting frames 36 provided above the nozzle mounting plate 53. The nozzle mounting plate 53, the mounting body 5, and the mounting frame body 36 are configured to rotate intermittently around the vertical axis 16 by driving the rotation driving unit 17.

  The liquid medicine supply mounting 1 includes a nozzle mounting plate 53 and a mounting means 15 for holding the mounting body 5, and the nozzle mounting plate 53, the mounting body 5, the mounting frame body 36, and the supply pump. The rotary drive unit 17 for intermittently rotating the shaft 18 around the vertical axis 16 concentrically, the pump drive unit 20 for driving the supply pump 18 corresponding to the selected supply bottle 3, One end of the supply pump 18 is inserted, and the other end is connected to the supply nozzle 22. The nozzle mounting plate 53 includes a holding unit 23 that holds the posture of the supply nozzle 22.

  The supply nozzle 22 has a frustoconical shape with the liquid medicine discharge port portion 26 having a reduced diameter on the lower side, and the liquid medicine discharge port portion 26 penetrates a protrusion 55 (described later) of the nozzle mounting plate 53 from above, The nozzle mounting plate 53 is detachably provided, and the supply nozzle 22 is formed with a liquid medicine supply path (not shown) penetrating in the vertical direction.

  The rotational drive unit 17 is provided on the top plate 7. The rotation drive unit 17 is rotatably formed around the vertical axis 16 on the lower surface of the top plate 7 and the rotation drive motor 28 mounted on the upper surface of the top plate 7 and is formed horizontally at the center in the vertical direction of the inner peripheral surface. A rotating ring 31 having an annular protrusion 30 formed thereon, an annular thin plate-like gear plate 32 fixed to the lower surface of the rotating ring 31, and a gear plate 32 attached to a drive shaft of the rotary drive motor 28. A drive gear meshing with the teeth 33 formed on the outer periphery, and a recess 34 that is attached to the lower surface of the top plate 7 so as to be rotatable around the vertical axis 16 and is fitted to the protrusion 30 on the outer peripheral surface. A plurality of support rollers 35. Each supply pump 18 is configured to be driven for each supply pump 18 in conjunction with the intermittent drive of the rotation drive unit 17 (rotation drive motor 28).

  The mounting frame 36 for mounting the supply pump 18 is provided on the lower surface of the gear plate 32 so as to be adjacent to the circumferential direction of the gear plate 32. Each mounting frame 36 includes a rectangular flat plate portion 38 on which the main body portion 37 of the supply pump 18 is assembled on the radially outer peripheral surface, and a rectangular frame projecting radially inward on each side of the flat plate portion 38. Part 40. The upper portion of the frame portion 40 is fixed to the lower surface of the gear plate 32 by, for example, screwing. The flat plate portion 38 also has an insertion hole (not shown) for projecting a driven gear (driven locking rotary claw) 41 that drives the supply pump 18 radially inwardly. The main body portion 37 of the supply pump 18 is fixed to the radially outer surface of the flat plate portion 38 by screws or the like. The driven gear 41 of the supply pump 18 protrudes radially inward of the flat plate portion 38 from the insertion hole, and the outer peripheral portion thereof is screwed or the like from the radial inner surface of the flat plate portion 38 by the mounting plate 44. With this configuration, each supply pump 18 is securely fixed to the inner diameter side of the attachment frame 36, and the driven gear 41 is configured to be rotatable around the horizontal axis 45 on the spot.

  The pump drive unit 20 is disposed radially inward of a region surrounded by the attachment frame 36. The pump drive unit 20 is provided on a side of the servo motor 46 that is held horizontally, a drive gear 47 (drive engagement rotary claw) provided at the tip of the drive shaft of the servo motor 46, and the servo motor 46. A solenoid 48 for advancing the servomotor 46 in the lateral direction (horizontal direction) toward the driven gear 41 of the selected supply pump 18, a spring 50 for biasing the servomotor 46 in a backward direction, and the servomotor A position detection sensor 51 that detects the position of 46, and a stopper 52 that can adjust the displacement position of the servo motor 46. In addition, although not shown in figure, the pump drive part 20 is mounted in the support plate member, and is supported so that a movement to a horizontal direction is possible.

  The nozzle mounting plate 53 is fixed to the lower portion of the frame portion 40 of the mounting frame 36 by screws or the like. The protruding portion 55 is formed on the outer peripheral portion of the nozzle mounting plate 53 so as to protrude radially outward at a position corresponding to the interval of each supply pump 18 in the circumferential direction. Nozzle insertion holes are respectively formed on the plate surfaces of the projecting portions 55, and the holding portion 23 has a hook portion 19a that is mounted on the nozzle mounting plate 5 so as to be rotatable about a vertical support shaft 16a. The tool 19 is configured to hold the body portion placed on the upper surface of the nozzle mounting plate 53 in the supply nozzle 22.

  A plate-like partition 56 having substantially the same height in the vertical direction is attached to the lower surface of the nozzle attachment plate 53 by screws or the like according to the number corresponding to the supply bottle 3. At the lower end of the partition body 56, the above-described placement body 5 is fixed to the partition body 56 by screws or the like. That is, the suspension means 15 for suspending the mounting body 5 on the top plate 7 has a continuous structure of a rotating ring body 31, a gear plate 32, each mounting frame body 36, a nozzle mounting plate 53, and a partition body 56. is doing.

  The supply bottle 3 is made of synthetic resin, and the body portion is formed in a cylindrical shape. Each supply bottle 3 is placed on the mounting body 5 via the holding container 60. Each holding container 60 is formed in a cylindrical shape with an upper open side. The height of the cylindrical peripheral wall 61 is set lower than the height of the body portion of the supply bottle 3. The inner diameter of the peripheral wall 61 of the holding container 60 is set slightly larger than the outer diameter of the supply bottle 3. A permanent magnet is embedded in the bottom of the holding container 60, and the holding body 60 is detachably held on the mounting body 5 by magnetic force by forming the mounting body 5 from a magnetic material. .

  A notch 74 is formed in the height position of the mounting body 5 and the front plate 13 of the main body 6, and the relationship between the height position of the lower portion in the notch 74 is that the height position of the mounting body 5 is lower than that in the notch 74. It is preferable that it exists in a position higher than a height position. In addition, it is preferable that the left-right width of the notch 74 is as wide as possible.

  Discharged from a front surface of the front plate 13 of the main body 6, a mounting table 24 for mounting the liquid medicine bottle 4, a lifting device 25 for moving the mounting table 24 up and down, and a liquid medicine discharge port portion 26 of the supply nozzle 22. And a liquid medicine sensor 27 for detecting the presence or absence of the liquid medicine 2 being used. The mounting table 24 has both sides of the rectangular cutout 74 (corresponding to an opening for attaching / detaching the supply bottle 3 to / from the mounting body 5) when viewed from the front where the lower portion of the front plate 13 is cut from the top to the bottom. Guided by the portions 75 and 76, it can be moved up and down. The medicine supply apparatus 1 includes a guide plate member 77 guided by the side wall portions 75 and 76 and capable of moving up and down, a fixed base 78 fixed to protrude forward from a lower front surface of the guide plate member 77, The liquid medicine bottle 4 is directly placed on the upper surface of the fixing base 78, and a receiving tray 81 having a recess into which the bottom of the liquid medicine bottle 4 is inserted is integrated or separately provided.

  The elevating device 25 includes an elevating motor 82 and a belt mechanism that is disposed in the lower front portion of the main body 6 and is driven by the elevating motor 82. The elevating motor 82 is attached to the back surface of the front plate 13 of the main body 6 so that the drive shaft projects forward, and the drive pulley 85 projects from the lower portion of the front plate 13 of the main body 6 to the front in the horizontal direction. As installed. The belt mechanism includes a belt fixture 86 fixed to a side portion of the guide plate member 77, a tension pulley 87 disposed obliquely below the drive pulley 85, and a winding pulley 90 disposed separately in the vertical direction. , 91 and a belt 92 wound around each pulley 85, 87, 90, 91. The lifting device 25 is driven by operating a drive switch (not shown).

  The liquid medicine supply device 1 having the above configuration has a power switch 66 and a washing mode switch 67 as washing control means, and the liquid medicine 2 is discharged from the liquid detection outlet 26 of the position detection sensor 51 and the supply nozzle 22. A control device 68 that controls the driving of the rotation drive unit 17 and the pump drive unit 20 by a signal from the liquid medicine sensor 27 and the like for detecting the presence of the liquid medicine sensor 27 is provided. A cleaning unit 69 for controlling the driving of the pump drive unit 20 based on the signal is provided (see the control block diagram of FIG. 8).

  First, a normal liquid medicine supply operation when supplying liquid medicine 2 to liquid medicine bottle 4 based on a prescription will be described. The operator turns on the power switch 66. Then, when the supply bottle 3 is in a predetermined position, the position detection device (not shown), that is, the supply bottle 3 to be used first is placed in the front-rear direction (mounting body) on the liquid medicine bottle 4 mounted on the mounting table 24. When the supply nozzle 22 corresponding to the supply bottle 3 is in a position immediately above the liquid medicine bottle 4, the control device 68 drives the pump drive unit 20. Control.

The driving of the pump drive unit 20 means that the solenoid 48 is driven and the servo motor 46 advances in the lateral direction (radial direction) toward the driven gear 41 of the supply pump 18 against the elasticity of the spring 50, and the drive gear The position detection sensor 51 detects the position at which 47 is engaged (engaged) with the driven gear 41, and the servomotor 46 is driven to rotate the driven gear 41 together with the drive gear 47. The supply pump 18 is driven. When the supply pump 18 is driven, the liquid medicine 2 in the supply bottle 3 is sucked up, the liquid medicine 2 passes through the liquid medicine supply pipe 21, and the liquid medicine 2 is discharged from the liquid medicine discharge port portion 26 of the supply nozzle 22. It will be discharged.
However, when the position detection device (not shown) detects that the supply bottle 3 is not in the predetermined position, the control device 68 drives the rotation driving unit 17 so that the supply bottle 3 located closest to the front is directed to the front. It will be.

  When the supply of the liquid medicine 2 from one supply bottle 3 is finished or when the liquid medicine 2 in another supply bottle 3 is used with the liquid medicine 2 in the supply bottle 3 left, The control device 68 sends a drive signal to the rotation drive unit 17 until the adjacent supply bottle 3 corresponds to the front and rear direction of the liquid medicine bottle 4 and the adjacent supply nozzle 22 in the circumferential direction reaches a position directly above the liquid medicine bottle 4. Then, the mounting body 5 and the nozzle mounting plate 53 are rotated about the vertical axis 16 to stop them. Subsequently, the control device 68 outputs a drive signal to the servo motor 46, whereby the drive gear 47 and the driven gear 41 are rotated, the supply pump 18 is driven, and the liquid medicine is discharged from the liquid medicine discharge section 26 of the supply nozzle 22. Liquid medicine 2 is discharged into the bottle 4. By repeating the above operation, the liquid medicine 2 is supplied to the liquid medicine bottles 4 that are sequentially placed on the mounting table 24.

  Here, for example, when the liquid medicine 2 still remains in the supply bottle 3, the prescription work for the day ends, and the liquid medicine 3 in the supply bottle 3 is supplied to the liquid medicine bottle 4 in the prescription work for the next day. May occur.

  In such a case, in the liquid medicine 2 that remains attached to the supply nozzle 22, depending on the type of the liquid, the water has evaporated, so that the viscosity is high and the liquid medicine 2 is attached to the inner wall of the liquid medicine supply path. Etc. are considered.

The operation of the liquid medicine supply device 1 when used as described above will be described with reference to FIG.
When the operator turns on the power switch 66 [Step 1] and then turns on the washing mode switch 67 [Step 2], the liquid medicine supply device 1 enters the washing mode in which the supply nozzle 22 is washed. In the cleaning mode, when it is confirmed that the supply nozzle 22 corresponding to the supply bottle 3 is directly above the mounting table 24 (at a predetermined position) [Step 3], the cleaning means 69 of the control device 68 The supply pump 18 corresponding to the supply bottle 3 is driven [Step 4], and the drive of the supply pump 18 is controlled so that the liquid medicine 2 is discharged from the liquid medicine outlet 26 of the supply nozzle 22.

In this case, the cleaning means 69 sets the timer 70 to start counting when the liquid medicine sensor 27 is present in the liquid medicine 2, that is, when the liquid medicine 2 is discharged from the liquid medicine outlet 26 of the supply nozzle 22. The drive signal is continuously output to the supply pump 18 from the start of counting until the liquid medicine 2 having increased viscosity is almost dissolved, and the supply pump 18 is driven for a preset cleaning time and then driven. [Step 5].
The washing time is a time for discharging the liquid medicine 2 from the supply nozzle 22 that can remove a part or all of the liquid medicine 2 attached to the supply nozzle 22, and the discharge amount of the liquid medicine 2 is, for example, 2 About 5 ml is preferable, but it is preferable to change the cleaning time and the discharge amount according to the time when the supply nozzle 22 is not used.

As described above, when the time elapses from the previous liquid medicine supply operation to the next liquid medicine supply operation, for example, the liquid medicine 2 is high in the liquid medicine supply path of the supply nozzle 22 and the vicinity thereof. In the case of adhering in a state (including the case of adhering as a so-called “duck”), the liquid medicine for cleaning is performed before the liquid medicine 2 is discharged from the supply nozzle 22 next time. Since a part or all of the highly viscous liquid medicine 2 that has been adhered to the supply nozzle 22 is removed by using the method of discharging 2, the liquid medicine 2 is then removed from the liquid medicine bottle. When the liquid medicine 2 is discharged, an accurate amount of liquid medicine 2 is discharged from the liquid medicine outlet 26 of the supply nozzle 22.
Prior to supplying the liquid medicine 2 to the liquid medicine bottle 4, by washing the supply nozzle 22 as described above, a part or all of the liquid medicine 2 adhered so far is removed. Therefore, the supply nozzle 22 can be used in a sanitary manner.

  In the cleaning mode, the operator prepares a container different from the liquid medicine bottle 4 to be placed on the mounting table 24, and uses the liquid medicine 2 discharged from the supply nozzle 22 in the cleaning mode in the container. The liquid medicine 2 can be discarded as received, or can be automatically recovered by providing a recovery part for recovering the liquid medicine 2 for cleaning used in the cleaning mode, for example, on the front surface of the main body 6. It is possible to do.

  In the subsequent operation, for those that need to clean the supply nozzle 22, after the supply nozzle 22 is cleaned by the above-described cleaning mode, the liquid medicine 2 is supplied to the liquid medicine bottle 4 as usual. To.

In the above embodiment, the power switch 66 is turned on and then the cleaning mode switch 67 is turned on to control the cleaning mode. However, regardless of the operation of the power switch 66, It is also possible to control to enter the cleaning mode by turning on the cleaning mode switch 67 alone.
Furthermore, it is also possible to automatically perform a normal liquid medicine supply operation including the cleaning mode by turning on the power switch 66 without providing the cleaning mode switch 67.
Further, during the cleaning mode, the rotation driving unit 17 is driven to intermittently rotate the nozzle mounting plate 53 around the vertical axis 16 by a predetermined angle, that is, an angle corresponding to the circumferential interval of the supply nozzle 22, so that all the supply nozzles For No. 22, it is also possible to perform a normal liquid medicine supply operation after once cleaning.

  In addition, it is also possible to set the discharge pressure of the liquid medicine 2 in the cleaning mode to be higher than the normal mode in which the liquid medicine 2 is supplied to the liquid medicine bottle 4. By doing in this way, the high-viscosity liquid medicine 2 from which water has evaporated is easily removed from the liquid medicine supply port portion 26 of the supply nozzle 22 even during the same cleaning time.

Furthermore, the present invention is not limited to the above-described embodiment, and the cleaning timing of the supply nozzle 22 is automatically set to the cleaning mode when the liquid medicine supply device 1 is not used for a certain period of time. It is also possible to control the supply nozzle 22 to be cleaned.
In this case, the liquid medicine supply device 1 is provided with a timer and a switch for starting the operation of the timer is provided, and the power switch 66 is automatically turned on when the count of the timer is finished, that is, when a certain time elapses. The control device 68 is configured so that the supply nozzle 22 is cleaned automatically in the cleaning mode. The timer may be electrically connected to the control device 68 by being actively operated and driven by an operator, or may be incorporated in the control device 68 in advance or electrically connected. The structure which makes it may be sufficient.
As the fixed time counted by the timer, for example, it is conceivable that the supply nozzle 22 is automatically cleaned in the cleaning mode if it is not used for 24 hours, as in the case of, for example, Saturdays, Sundays or holidays. Or even if it is not 24 hours, even if it is not 24 hours, the viscosity of the liquid medicine 2 adhering to the supply nozzle 22 becomes high, and the liquid medicine supply port portion 26 is not closed or close to that state. It is also preferable that the fixed time can be set according to the type). The liquid medicine supply device 1, that is, the pump drive unit 20 is not driven.
If the power switch 66 is turned on before the predetermined time has elapsed, the timer is preferably canceled and the supply nozzle 22 is cleaned as in each of the above embodiments.

The perspective view from the upper part which shows a part of liquid medicine supply apparatus which shows embodiment of this invention Similarly, a broken perspective view drawn around the suspension means A side view showing a part of the liquid medicine supply device Similarly an enlarged front view showing a part of the liquid medicine supply device Similarly an enlarged perspective view from above showing a part of the liquid medicine supply device Plan view with the top plate removed Similarly, a diagram showing the nozzle mounting plate and pump drive unit with the top plate removed. Control block diagram of liquid medicine supply device Control flow chart of liquid medicine supply device

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Liquid medicine supply apparatus, 2 ... Liquid medicine, 3 ... Supply bottle, 4 ... Liquid medicine bottle, 5 ... Mounting body, 16 ... Vertical axis, 17 ... Rotation drive part, 18 ... Supply pump, 20 ... Pump drive , 21 ... liquid medicine supply pipe, 22 ... supply nozzle, 24 ... mounting table, 26 ... liquid medicine discharge port, 27 ... liquid medicine sensor, 41 ... driven gear, 46 ... servo motor, 47 ... drive gear, 48 ... Solenoid, 50 ... Spring, 51 ... Position detection sensor, 53 ... Nozzle mounting plate, 66 ... Power switch, 67 ... Cleaning mode switch, 68 ... Control device, 69 ... Cleaning means, 70 ... Timer

Claims (5)

A liquid medicine supply device that discharges liquid medicine in a liquid medicine supply bottle from a discharge port of a nozzle by driving a supply pump to supply liquid medicine to the liquid medicine bottle,
A cleaning control means for cleaning the nozzle is provided, and the cleaning control means controls the liquid supply to be discharged from the nozzle outlet by driving the supply pump for a time corresponding to a preset nozzle cleaning time. A liquid medicine supply device having a function.   A cleaning start switch for starting cleaning of the nozzle is provided, and the cleaning control means has a function of outputting a drive signal to the supply pump so as to start cleaning of the nozzle by operating the cleaning start switch. The liquid medicine supply device according to claim 1, wherein:   A liquid medicine sensor for detecting the presence or absence of liquid medicine discharged from the discharge port of the nozzle is provided, and the cleaning control means has a function of counting a time corresponding to the cleaning time from detection of liquid medicine by the liquid medicine sensor. The liquid medicine supply device according to claim 1 or 2.   A nozzle mounting body in which a plurality of liquid medicine supply bottles are placed at intervals in the circumferential direction, a mounting body that is rotatable around the vertical axis is provided, and a nozzle mounting body that is rotatably arranged around the vertical axis is provided above the mounting body. The nozzles are mounted at intervals in the circumferential direction, and the mounting body and the mounting body are configured to be intermittently rotated around the vertical axis by driving the rotation driving unit, and one end of the supply pipe is attached to each liquid medicine supply bottle. The other end is inserted and connected to the nozzle, and the middle of the supply pipe is connected to a supply pump provided for each liquid medicine supply bottle. Liquid medicine supply device.   The liquid medicine according to claim 4, wherein the mounting body, the attachment body, and the supply pump are suspended on the top wall side of the liquid medicine supply device body and are intermittently rotatable around the vertical axis. Feeding device.

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