JP2009002752A - Liquid formulation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid formulation device capable of performing precise formulation having excellent weight accuracy, in formulation of a plurality of kinds of liquids. <P>SOLUTION: A plurality of containers having each discharge nozzle are provided with each pressurizing means, and a weight measuring means is connected to the pressurizing means, and the pressurizing means is controlled by a weight measurement data output, and a liquid having a prescribed weight is discharged from the discharge nozzle into a weighing container of the weight measuring means, and a plurality of kinds of liquids are formulated with a prescribed weight ratio. Each liquid having each different viscosity is stored in each container respectively, and a temperature adjusting means is mounted on each container, and the temperature of the liquid in the container is adjusted by the temperature adjusting means, to thereby equalize each viscosity of different kinds of liquids. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a liquid blending apparatus for blending a plurality of types of liquids at a predetermined ratio to obtain a mixed liquid.

  When mixing multiple types of liquids to obtain a liquid mixture, the liquid to be prepared is discharged from the nozzle, poured into a measuring container set in the measuring device, and the mixing ratio of each liquid is calculated according to the weight indicated by the measuring device. Yes. An apparatus for automatically performing such a blending operation is described in Patent Document 1.

  The apparatus described in Patent Document 1 is equipped with a dispenser equipped with a microsyringe and a heating unit at the tip of an arm, and drives the arm to supply a high-viscosity compound with the dispenser and a low-viscosity compound with a microsyringe. It is configured to be supplied to the container, and the high viscosity compound can be heated by the heating part of the dispenser and kept at a temperature at which the high viscosity compound exhibits fluidity. Can be prepared in a short time.

  At this time, if a large amount of liquid mixture is prepared, the accuracy of the mixing ratio is unlikely to be a problem even if a slight error occurs in the discharge amount of each liquid. In the case of preparing a small amount of various kinds of mixed liquids in which the mixing ratio is changed little by little, the weight accuracy of each liquid becomes a big problem.

As a cause of deteriorating the weight accuracy at the time of blending, there is an unweighed liquid until it falls from the tip of the nozzle and is injected into the measuring container. The weight of the unweighed liquid changes depending on the viscosity of the liquid and the distance from the nozzle to the liquid level in the measuring container, which hinders precise preparation.
JP2007-56106A

  An object of the present invention is to provide a liquid blending apparatus that can perform precise blending with high weight accuracy even when a small amount of a blended liquid is blended by mixing a plurality of liquids.

In order to solve the above-mentioned problem, in the invention described in claim 1, pressurization means is provided in a plurality of containers having discharge nozzles, and weight measurement means is connected to the pressurization means and pressurization is performed by weight measurement data output. And controlling the means to discharge a predetermined weight of liquid from the discharge nozzle to the weighing container of the weight measuring means to prepare a plurality of types of liquids at a predetermined weight ratio. A temperature adjusting means is attached to the container, and the temperature of the liquid in the container is adjusted by the temperature adjusting means to average the viscosity of different types of liquids.
The invention according to claim 2
In the case of preparing a plurality of types of liquids having different viscosities at a predetermined weight ratio, high viscosity liquids having different viscosities are accommodated in a plurality of high viscosity containers having discharge nozzles, and temperature adjusting means is provided in these high viscosity containers. Attach and adjust the temperature of the liquid in the high-viscosity container by this temperature adjustment means to average the viscosity of different types of liquid, and also to the low-viscosity liquids with different viscosity in each of the multiple low-viscosity containers with open top A pressurizing means for selecting a nozzle tip determined for each low-viscosity container and connecting the tip of the suction-discharger in a replaceable manner to suck the liquid in the low-viscosity container and to provide the high-viscosity container and the suction-discharger The weight measuring means is connected to the pressure measuring means to control the pressurizing means by outputting the weight measurement data, and a predetermined weight of liquid is discharged from the discharge nozzle and nozzle tip to the weighing container of the weight measuring means.
According to a third aspect of the present invention, the weight measuring means includes liquid level height measuring means for measuring the liquid level height of the liquid supplied to the measuring container, and the weighing container measured by the liquid level height measuring means is provided. The distance from the liquid level to the lower end of the nozzle is adjusted to be constant.
The invention according to claim 4 is characterized in that the pressurizing means includes a discharge speed adjusting means for adjusting a liquid discharge speed.

  According to the first aspect of the present invention, a plurality of liquids are accommodated in the respective containers, temperature adjusting means are attached to these containers, and the temperature of the liquid in the container is adjusted by the temperature adjusting means, thereby different types of liquids. By averaging the viscosity of each liquid, the viscosity of each liquid is averaged, and the influence on the discharge weight due to the variation in the viscosity of the unmeasured liquid from the lower end of the discharge nozzle to the liquid level of the measuring container is eliminated. It is possible to improve the preparation accuracy of the mixed liquid by managing the liquid amount.

  According to the invention described in claim 2, the high viscosity liquid is accommodated in a high viscosity container having a discharge nozzle, and the temperature in the high viscosity container is adjusted by the temperature adjusting means attached to the high viscosity container. The viscosity of the liquid in the viscosity container is averaged, and the low-viscosity liquid is stored in a low-viscosity container with an open top, and a nozzle tip determined for each low-viscosity container can be selected and replaced with the tip of the suction / discharger Connected to the suction unit to suck the liquid of low viscosity solution, connect the weight measuring unit to the pressurizing unit provided in the high viscosity container and the suction discharger, and control the pressurizing unit by the weight measurement data output, discharge nozzle and nozzle tip By discharging a predetermined weight of liquid into the weighing container of the weight measuring means, the liquid is accommodated in the container according to its viscosity and discharged appropriately, achieving an improvement in blending accuracy and increasing the size and cost of the device. Control Can.

  According to a third aspect of the present invention, the weight measuring means includes liquid level height measuring means for measuring the liquid level height of the liquid supplied to the measuring container, and the liquid level measuring means allows the liquid in the measuring container to be measured. By measuring the surface height and adjusting the distance from the liquid level of the measuring container to the lower end of the nozzle to be constant, the influence of the unbalanced liquid due to the variation in the distance is eliminated, and the liquid amount of the unweighed liquid is reduced. It is possible to improve the preparation accuracy of the liquid mixture by accurately managing.

  According to a fourth aspect of the present invention, the pressurizing unit includes a discharge rate adjusting unit that adjusts the discharge rate of the liquid. By adjusting the discharge rate of the liquid with the discharge rate adjusting unit, the pressurizing unit increases the speed at the start of the discharge. Discharge and slowly discharge at low speed before the end of discharge, stop the discharge immediately before the end of discharge, and accurately supply the required amount with the unweighed liquid controlled to a constant amount by the temperature control means and nozzle position adjustment means Thus, the mixing accuracy of the mixed liquid can be improved.

  Hereinafter, an embodiment of a liquid preparation device according to the present invention will be described with reference to FIGS. 1 to 12. First, the overall configuration of the liquid preparation apparatus will be described with reference to FIGS. 1 and 2. FIG. 1 is a front perspective view of a liquid blending apparatus according to the present invention, and FIG. 2 is a plan view of the liquid blending apparatus.

  In the present embodiment, the high-viscosity liquid unit 2, the low-viscosity liquid unit 3, and the control unit 4 that constitute the liquid blending apparatus 1 are arranged inside or outside a box-shaped work base body 10 that has an open front.

  A triaxial slider 40 that is a moving means is disposed in the inner front of the work base body 10. In FIG. 1, the triaxial slider 40 includes an X-axis slider 400 in the left-right direction, a Y-axis slider 401 in the front-rear direction, and a Z-axis slider 402 in the up-down direction. The gripping means 41 is attached to the Z-axis slider 402 of the triaxial slider 40.

  A container support 32 that supports a number of low-viscosity containers 31 is arranged in the center of the front, and a nozzle tip support that supports the nozzle chips 33 corresponding to the respective low-viscosity containers 31 is located at the right rear of the container support 32. 34 is arranged. An electronic balance device 44 that is a weight measuring means is disposed in front of the nozzle tip support 34, and a measuring container 43 that supplies and mixes liquid is installed on the electronic balance device 44. A head support means 42 is arranged on the rightmost inner side of the work base body 10 to support the temperature control head 20 and the suction / discharge device 30 side by side.

  Outside the work base body 10, a temperature controller 45 that constitutes a temperature control means, and a quantitative discharger 46 and a syringe pump 47 that constitute a pressurizing means are arranged. Furthermore, a personal computer and a monitor (not shown) are installed as input / output devices for setting each device constituting the control unit 4 and monitoring input / output values, and the control unit 4 is driven by being controlled by the input / output device. Drive means (not shown) such as an air cylinder is provided. Illustration of conductors and wirings extending from the temperature controller 45, the quantitative dispenser 46, the syringe pump 47, and the like is omitted.

  The high-viscosity liquid unit 2 includes a plurality of temperature control heads 20 supported by the head support means 42. The low-viscosity liquid unit 3 includes a suction / discharge device 30, a low-viscosity container 31 supported by a container support 32, and a nozzle tip 33 supported by a nozzle tip support 34.

  The control unit 4 includes a three-axis slider 40, a gripping means 41, a head support means 42, an electronic balance device 44, a temperature controller 45, and a metering dispenser that is a pressurizing means for the high-viscosity liquid unit 2. 46 and a syringe pump 47 which is a pressurizing means for sucking and discharging the liquid from the nozzle chip 33 attached to the suction / discharger 30 in the low viscosity liquid unit 2.

  The container support 32, the nozzle tip support 34, the triaxial slider 40, and the electronic balance device 44 arranged inside the work base body 10 are fixed in relative positions. The weighing container 43 is configured so that it can be positioned and placed at a fixed position of the electronic balance device 44. The head support means 42 may also fix the relative positions of the container support 32, the nozzle tip support 34, the triaxial slider 40, and the electronic balance device 44.

  In this embodiment, the high-viscosity liquid unit 2 is composed of six temperature control heads 20, 20,..., And the head support means 42 is combined with the suction / discharge device 30 of the low-viscosity liquid unit 3. Seven heads are supported. In this case, since the gripping means 41 cannot move to a position where the temperature control head 20 in the back can be gripped, the head support means 42 is configured to be slidable in the vertical direction in FIG.

  By making the head support means 42 slidable, a necessary number of temperature control heads can be secured regardless of the movable range of the moving means, and therefore, it is possible to cope with various liquid mixture preparations.

  Next, the high viscosity liquid unit will be described with reference to FIGS. First, the temperature control head constituting the high-viscosity liquid unit will be described with reference to FIG. FIG. 3 is a partial cross-sectional side view of the temperature control head.

  The temperature control head 20 includes a cylindrical high-viscosity container 21 that holds liquid, a discharge nozzle 22 provided at the lower end of the high-viscosity container 21, a cylindrical case 23 that stores the high-viscosity container 21 and the discharge nozzle 22, The cylindrical case 23 and the lid 24 that closes the upper part of the high viscosity container 21 are configured. Inside the cylindrical wall of the cylindrical case 23, a heater 25 and a thermometer (not shown) are provided. Further, the lid 24 is provided with a pressurizing port 240 for discharging by the fixed amount discharger 46.

  The heater 25 includes a container heater 250 attached around the high-viscosity container 21 and a nozzle heater 251 attached around the discharge nozzle 22. The thermometer includes a container thermometer for measuring the temperature of the liquid in the high viscosity container 21 and a nozzle thermometer for measuring the temperature of the liquid in the discharge nozzle 22. The temperature of the liquid in the high viscosity container 21 is controlled by the container heater 250 and the container thermometer, and the temperature of the liquid in the discharge nozzle 22 is controlled by the nozzle heater 251 and the nozzle thermometer.

  Next, gripping of the temperature control head by the gripping means will be described with reference to FIGS. FIG. 4 is a side view showing a state in which the temperature control head is supported by the head support means, and FIG. 5 is a plan view showing how the temperature control head is gripped by the gripping means.

  The temperature control head 20 includes a gripping member 27 for gripping the temperature control head 20 by the gripping means 41. The gripping member 27 has a plate shape, and is attached integrally with the cylindrical case 23 at the upper and lower portions of the temperature control head 20. A locking tool 28 is attached to the grip member 27, and a receiving hole 29 is formed on the outer surface of the grip member 27.

  The head support means 42 includes a main body frame 420, a lower end support plate 421 that supports the lower end of the temperature control head 20, and a lower support that supports the upper and lower portions of the cylindrical case 23, as shown in FIG. A plate 422, a middle support plate 423, an upper support plate 424, and a locking plate 425 formed at the tip of the upper support plate 424 are configured. The lower end support plate 421 is formed with a recess 426 that receives the lower end of the discharge nozzle 22 of the temperature control head 20.

  The temperature control head 20 is put into a fixed position by fitting the tip of the discharge nozzle 22 into the recess 426 of the lower end support plate 421 and locking the locking tool 28 attached to the gripping member 27 to the locking plate 425. Supported in a standing state.

  As shown in FIG. 5, the gripping means 41 is fitted to the main body 410 attached to the Z-axis slider 402 of the triaxial slider 40 that is a moving means and the receiving hole 29 of the gripping member 27 of the temperature control head 20. The protrusions 411 and 411 and a pair of clamping portions 412 and 412 that sandwich the plate-shaped gripping member 27. Both clamping parts 412 and 412 are configured to be slidable in the vertical direction in FIG.

  When gripping the temperature control head 20, first, the gripping means 41 is moved to the front of the temperature control head 20 supported at a fixed position by the head support means 40 (FIG. 5A). Then, the gripping means 41 is advanced to fit the protrusion 411 into the receiving hole 29 of the gripping member 27, and the clamping portions 412 are slid inwardly to clamp the plate-shaped gripping member 27 (FIG. 5). (B)).

  According to the head support means 42 having the above-described configuration, since the lower end of the discharge nozzle 22 is received by the recess 426, the temperature control head 20 can be reliably supported at a fixed position, and gripping work by automatic control becomes easy. Further, by fitting the protrusion 411 with the receiving hole 29, the height position of the temperature control head 20 in the gripping state can be determined with high accuracy.

  Next, temperature control of the liquid held in the temperature control head will be described with reference to FIG. FIG. 6 is a correlation diagram showing an example of the relationship between the temperature and the viscosity of the liquid.

  FIG. 6 shows a case where liquid A, liquid B, and liquid C are put in three temperature control heads 20, respectively. The liquid A is indicated by a broken line, the liquid B is indicated by a solid line, and the liquid C is indicated by a one-dot chain line.

  In controlling the temperature, first, the use viscosity is determined. At this time, the use viscosity is determined in a temperature range in which the liquids A, B, and C are not deteriorated. In FIG. 6, the use viscosity is indicated by a thin solid line. The temperature at which the liquid A has this use viscosity is 42 ° C., and the temperature control head holding the liquid A controls the temperature by the temperature control means so that the liquid A becomes 42 ° C. Similarly, the temperature of the liquid B and the liquid C is controlled by the temperature control means so that the temperature is adjusted to 50 ° C. and 30 ° C. by the temperature control head holding the liquids.

  The temperature control means of this embodiment includes a temperature controller 45 and a thermometer provided on the temperature control head 20.

  Next, adjustment of the nozzle position during liquid ejection will be described. Adjustment of the nozzle position is performed by the liquid level height measuring means and the nozzle position adjusting means.

  In the present embodiment, the liquid level measuring means is configured to calculate from the amount of liquid supplied to the measuring container 43 and the weighing value of the electronic balance device 44. The liquid level height measuring means may be configured by attaching a laser distance meter, an ultrasonic distance meter, or the like to the work base body 10, the temperature control head 20, or the suction / discharge device 30. In the present embodiment, the nozzle position adjusting means is constituted by a triaxial slider 40 which is a moving means.

  In order to adjust the nozzle position, first, the height of the liquid level of the liquid in the measuring container that rises as the liquid is supplied to the measuring container 43 is measured by a liquid level measuring means (not shown). Then, the nozzle position adjusting means adjusts the distance from the measured liquid level height to the lower end of the nozzle of the head to be constant.

  Next, liquid discharge control by the discharge speed adjusting means will be described with reference to FIG. FIG. 7 is a correlation diagram showing an example of the relationship between the elapsed time from the start of discharge and the measured value of the liquid mixture obtained by the weight measuring means. FIG. 7 shows a case where 5 g of liquid is supplied to the measuring container as a specific example.

  First, at the start of discharge, the discharge pressure by the quantitative discharger 46 is increased, and the liquid is discharged until the threshold value A (for example, 4.5 g) is reached in a short time (high-speed discharge stage (FIG. 7 (section a))). When the electronic balance device 44, which is a weight measuring means, measures a weighing value equal to or greater than the threshold value A, the discharge pressure of the quantitative discharger 46 is lowered and liquid is discharged until the threshold value B (for example, 4.9 g) is reached (low-speed discharge). Stage (FIG. 7 (section b))). When the electronic balance device 44 measures the weighing value equal to or greater than the threshold value B, the dispensing by the quantitative dispensing machine 46 is terminated (discharging stop stage (FIG. 7 (section c))), and the unbalanced amount from the discharging nozzle 22 to the mixed liquid The required amount of liquid is obtained from the liquid.

  In the present embodiment, the discharge speed adjusting means adjusts the discharge speed depending on whether the weighed value of the liquid mixture exceeds a predetermined threshold, but calculates the discharge amount from the discharge pressure and the discharge time, and calculates this. The discharge speed may be adjusted based on the value. Further, for each liquid, the discharge amount per unit time of discharge pressure may be held as data, and the discharge speed may be adjusted based on this data.

  In the present embodiment, the switching of the discharge pressure by the threshold is performed by connecting the weight measuring unit to the pressurizing unit and inputting the weighing value measured by the weight measuring unit to the pressurizing unit. The discharge amount may be calculated from the pressure and the discharge time, and the weight of the liquid may be obtained from the specific gravity of the discharged liquid.

  Next, the movement of the temperature control head when supplying the liquid to the measuring container will be described with reference to FIG. FIG. 8 is a plan view showing how the temperature adjustment head is moved by the moving means.

  When the liquid blending operation is started, the three-axis slider (FIG. 8A) at the initial position moves to the front of the temperature control head 20 holding the necessary liquid and grips the temperature control head 20 (FIG. 8). 8 (b)). Next, the temperature adjustment head 20 is moved onto the measuring container 43 (FIG. 8C), and a required amount is supplied to the measuring container 43 by discharging liquid. Then, after supplying the necessary amount, the temperature adjustment head 20 is returned to the original position (FIG. 8D).

  Next, the low viscosity liquid unit will be described with reference to FIGS. First, the suction / discharge device constituting the low-viscosity liquid unit will be described with reference to FIGS. 9 and 10. FIG. 9 is a side view of the suction / discharge device, and FIG. 10 is a front view of the suction / discharge device.

  The suction / discharge device 30 is formed by forming a through hole 301 for sucking and discharging a liquid in the head main body 300 and fixing the head main body 300 to the gripping member 302. The head main body 300 is fixed to the gripping member 302 via a fixing tool 305. The gripping member 302 includes a locking tool 303 for locking to the locking plate 425 of the head support means 42, and a receiving hole 304 that fits the protrusion 411 of the gripping means 41.

  Further, a vertical groove 307 is formed in the gripping member 302, and the slider 308 is attached to the groove 307. The slider 308 is driven by an air cylinder (not shown), is slid up and down along the groove 307, the pushing member 306 is attached to the lower part of the slider 308, and the pushing member 306 is moved up and down along the head main body 300. .

  Next, with reference to FIG. 11, attachment / detachment of the nozzle tip to / from the suction / discharge device will be described. FIG. 11 is a front view showing the operation of the attachment / detachment mechanism of the suction / discharge device. FIG. 11A shows a state where the nozzle tip is mounted, and FIG. 11B shows a state where the nozzle tip is removed.

  When the nozzle tip 33 is attached to the suction / discharge device 30, the suction / discharge device 30 is moved upward above the nozzle tip 33 and lowered, and the lower end portion of the head body 300 is fitted into the nozzle tip 33 and fixed (see FIG. 11 (a)). From this state, the slider 308 is driven by an air cylinder (not shown), the push member 306 is moved down along the head body 300, and the upper end of the nozzle tip 33 is pushed, whereby the nozzle tip 33 can be removed (FIG. 11). (B)).

  Next, with reference to FIG. 12, the movement of the suction / discharge device when supplying the liquid to the measuring container will be described. FIG. 12 is a plan view showing a state in which the suction / discharge device is moved by the moving means.

  When the liquid preparation operation is started, the triaxial slider (FIG. 12A) in the initial position moves to the front of the suction / discharge device 30 and grips it (FIG. 12B). Next, the suction / discharge device 30 is moved onto the nozzle tip 33 corresponding to the liquid to be supplied, and the nozzle tip 33 is attached to the suction / discharge device 30 (FIG. 12C). Next, the suction / discharge device 30 moves onto the low-viscosity container 31 holding the liquid to be supplied, and sucks the required amount of liquid (FIG. 12D). Then, the suction / discharge device 30 is moved onto the measuring container 43 to discharge the liquid and supply the required amount to the measuring container 43 (FIG. 12E).

  After supplying the necessary amount, the suction / discharge device 30 is first moved onto the nozzle tip support 34, and the nozzle tip 33 is removed and returned to a predetermined position (FIG. 12 (f)). Thereafter, when the blending operation is completed, the suction / discharge device 30 is returned to the original position. In the case of continuing the blending operation, the nozzle tip 33 is replaced or the head is replaced, and the liquid is further supplied to the measuring container.

  In the present embodiment, the used nozzle tip 33 is returned to a predetermined position, but it may be disposable.

  The liquid preparation apparatus configured as described above has the following effects.

  Among the liquids to be prepared, those having a relatively high viscosity are held in a high viscosity container of a high viscosity liquid unit, and the high viscosity liquid held in the high viscosity container is heated by a heater so that the temperature of the liquid is higher than room temperature. By increasing the temperature, the viscosity of the high-viscosity liquid decreases. Therefore, the liquid can be discharged efficiently and the influence of the unmeasured liquid can be reduced.

  Further, the temperature of the liquid in each high-viscosity container is adjusted by the temperature control means of the control unit so that the viscosity becomes uniform. Therefore, the influence of the unweighed liquid due to the variation in the viscosity of each liquid can be eliminated, the liquid amount of the unweighed liquid can be managed, and the mixing accuracy of the mixed liquid can be improved.

  Further, by adjusting the temperature by attaching a heater to the high viscosity container and the discharge nozzle, the temperature of the liquid discharged from the temperature control head is controlled to be a predetermined temperature. Therefore, by maintaining the liquid at a predetermined temperature, the viscosity is kept constant, the influence of the unmeasured liquid due to the variation in the viscosity of each liquid is surely eliminated, and management of the liquid volume of the unweighed liquid is realized. Formulation accuracy can be improved reliably.

  Further, the liquid surface height in the measuring container is measured by the liquid surface height measuring unit and the nozzle position adjusting unit, and the nozzle position is adjusted so that the distance between the lower end of the nozzle and the liquid surface is constant. Therefore, the influence of the unweighed liquid due to the variation in the distance can be eliminated, the liquid amount of the unweighed liquid can be accurately managed, and the mixing accuracy of the mixed liquid can be reliably improved.

  The liquid discharge speed is adjusted by the discharge speed adjusting means. Therefore, discharge at high speed at the start of discharge, and slowly discharge at low speed before the end of discharge, stop discharge immediately before the end of discharge, and keep the viscosity of the liquid constant by temperature control means and nozzle position adjustment means The required amount can be accurately supplied by the unweighed liquid managed in (1) to improve the preparation accuracy of the mixed liquid.

It is a front perspective view of the liquid preparation apparatus which concerns on this invention. It is a top view of the liquid preparation apparatus which concerns on this invention. It is a partial cross section side view of a temperature control head. It is a side view which shows the state which supported the temperature control head on the head support means. It is a top view which shows a mode that a temperature control head is hold | gripped with a holding means. It is a correlation diagram which shows an example of the relationship between the temperature of a liquid, and a viscosity. It is a correlation diagram which shows an example of the relationship between the elapsed time from the start of discharge, and the measured value of the liquid mixture by a weight measurement means. It is the top view which showed a mode that the temperature control head moved by the moving means. It is a side block diagram of a suction discharger. It is a front lineblock diagram of a suction discharger. It is a front view which shows operation | movement of the attachment / detachment mechanism of a suction discharger. It is the top view which showed a mode that the suction discharge device moved by the moving means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid preparation apparatus 10 Work base body 11 Bottom part 2 High-viscosity liquid unit 20 Temperature control head 21 High-viscosity container 22 Discharge nozzle 23 Cylindrical case 24 Cover body 240 Pressurization port 25 Heater 250 Container heater 251 Nozzle heater 27 Holding member 28 Locking Tool 29 Receiving Hole 3 Low Viscosity Liquid Unit 30 Suction Discharger 300 Head Body 301 Through Hole 302 Gripping Member 303 Locking Tool 304 Receiving Hole 305 Fixing Tool 306 Extruding Member 307 Groove 308 Slider 31 Low Viscosity Container 32 Container Supporting Tool 33 Nozzle tip 34 Nozzle tip support 4 Control unit 40 3-axis slider 400 X-axis slider 401 Y-axis slider 402 Z-axis slider 41 Grasping means 410 Main body part 411 Projection body 412 Holding part 42 Head support means 420 Main body frame 421 Lower end support plate 22 lower support plate 423 Central support plate 424 upper supporting plate 425 engaging plate 426 recesses 43 weighing container 44 electronic balance device 45 temperature controller 46 dispensing machine 47 syringe pumps

Claims (4)

A plurality of containers having discharge nozzles are provided with pressurizing means, and a weight measuring means is connected to the pressurizing means, and the pressurizing means is controlled by outputting weight measurement data, and a predetermined weight of liquid is weighted from the discharge nozzle. In what mixes a plurality of types of liquid at a predetermined weight ratio by discharging into a measuring container,
Liquids having different viscosities are accommodated in the containers, temperature adjusting means are attached to the containers, and the temperature of the liquid in the container is adjusted by the temperature adjusting means to average the viscosities of different types of liquids. Liquid blending device. In what mixes multiple kinds of liquids at a predetermined weight ratio,
A plurality of high-viscosity containers each having a discharge nozzle are filled with high-viscosity liquids having different viscosities, temperature adjusting means are attached to these high-viscosity containers, and the temperature of the liquid in the high-viscosity container is adjusted by the temperature adjusting means. Average the viscosity of different types of liquids,
Low-viscosity liquids with different viscosities are accommodated in a plurality of low-viscosity containers with open top surfaces, and a nozzle tip determined for each low-viscosity container is selected and connected to the tip of the suction discharger in a replaceable manner. Aspirate the liquid in the container,
A weight measuring means is connected to the pressurizing means provided in the high-viscosity container and the suction / discharging device, and the pressurizing means is controlled by outputting the weight measurement data, and a predetermined weight of liquid is discharged from the discharge nozzle and nozzle tip to the weighing container of the weight measuring means. A liquid blending apparatus for discharging. The weight measuring means includes liquid level measuring means for measuring the liquid level height of the liquid supplied to the measuring container,
3. The liquid preparation apparatus according to claim 1, wherein the distance from the liquid surface of the measuring container measured by the liquid surface height measuring means to the lower end of the nozzle is adjusted to be constant.   3. The liquid preparation apparatus according to claim 1, wherein the pressurizing unit includes a discharge rate adjusting unit that adjusts a discharge rate of the liquid.

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