JPH0534184A - Quantitative supply of liquid - Google Patents

Abstract

PURPOSE:To quantitatively supply a liquid with high accuracy and to certainly enhance productivity. CONSTITUTION:In the quantitative supply of a liquid for accurately supplying a predetermined liquid 11 by a first predetermined amount V1, a first process introducing the liquid 11 into a syringe 22 under suction by a second predetermined amount V2 larger than the first predetermined amount V1 from the container 48 having the liquid 11 received therein and a second process of emitting the liquid 11 in the syringe 22 to an emitting position by the first predetermined amount V1 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for quantitatively supplying a liquid for filling a syringe with a liquid to be supplied and then pushing a piston to supply a predetermined amount to a predetermined place.

[0002]

2. Description of the Related Art Conventionally, as a liquid supply device for precisely discharging a predetermined amount of liquid and supplying it to a predetermined position, for example, one shown in FIG. 9 is known. This liquid supply device fills a syringe 52 with a liquid 50 as shown in the figure,
Liquid 5 in syringe 52 is pushed by pushing piston 54
It is configured to discharge a predetermined amount of 0. The piston 54 is driven by, for example, a stepping motor 56 and a ball screw 58. By rotating the stepping motor 56 by the number of steps corresponding to the required supply amount of the liquid 50, the piston 54 is moved downward in the figure, and the liquid 50 is discharged from the tip of the needle 53 by a constant amount. Then, conventionally, as a liquid supply method in the case of mass-producing a predetermined article using such a liquid supply device, a supply device is a syringe 52 in which a liquid 50 corresponding to a plurality of discharge amounts is stored in advance. A method has been taken in which the syringe 52 is attached to the main body 60 and the syringe 52 is replaced every time the discharge for a plurality of times is completed.

[0003]

However, in the above-mentioned conventional example, in order to precisely control the discharge amount of the liquid 50, it is necessary to use a syringe having a small inner diameter. Generally available syringes and pistons are
The smaller the inner diameter of the syringe, the smaller its volume. Therefore, in a manufacturing apparatus intended to produce a certain article in a large amount, when such a liquid supply method is used, the syringe filled with the liquid is frequently replaced, and the manufacturing apparatus is changed each time. There was a problem that it had to be stopped, which was an obstacle to improving productivity.

As one method of solving this, for example, the liquid 50 contained in another container as shown in FIGS. 10 (a) and 10 (b) while the syringe 52 is attached to the main body 60 of the supply device. Is sucked into the syringe 52, and
It is conceivable to repeat the process of discharging to the position to be supplied as shown in 0 (c). However, when injecting the liquid 50 into the syringe, as shown in FIG.
As shown in (b), the air 61 existing between the tip of the needle 53 and the lower end surface of the piston 54 is simultaneously sucked. Therefore, when the sucked liquid 50 is discharged, at the last stage, the sucked air 61 enters the needle 53 as shown in FIG. However, there is a problem that the amount of the liquid 50 ejected becomes inaccurate and remains.

As another method, a method using a plunger pump as shown in FIG. 11 has been proposed.
In the method using the plunger pump, the plunger 62 is driven by the stepping motor 64 and the ball screw 66 as in the method using the syringe and piston. Then, with the tip of the needle 68 immersed in the container filled with the liquid 50, the plunger 62 is raised by the stepping motor 64, the liquid 50 is taken into the pump, and the plunger 62 is supplied at the place where the liquid 50 should be supplied. And the liquid 50 is discharged. By repeating this, it is possible to deal with mass production of a predetermined article.

However, even in the method using this plunger pump, as shown in FIG. 11, since the air layer 70 is present between the plunger 62 and the taken-in liquid 50, the above syringe is used. Just as in the case where the liquid 50 is discharged, there is a problem that when the liquid 50 is discharged, the liquid 50 remains attached to the inner wall surface of the needle 68, and the accuracy of the discharge amount deteriorates. Particularly, when the viscosity of the liquid 50 is high, the accuracy of the ejection amount is significantly deteriorated. Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to supply a liquid with high accuracy and to quantitatively improve the productivity such that the productivity can be reliably improved. It is to provide a supply method.

[0007]

In order to solve the above-mentioned problems and to achieve the object, a method for quantitatively supplying a liquid according to the present invention comprises:
A method for supplying a fixed amount of a predetermined liquid accurately by a first predetermined amount V1, wherein a liquid containing a predetermined amount of the liquid is stored in a syringe in a quantity larger than the first predetermined amount V1. The first step of inhaling a predetermined amount V2 of 2 and the first step of discharging the liquid in the syringe to the discharge position.
And a second step of discharging a predetermined amount V1 of the above.

Further, in the liquid constant amount supply method according to the present invention, in the liquid constant amount supply method for accurately supplying the predetermined liquid by the first predetermined amount V1, from the container accommodating the predetermined liquid, The liquid in the syringe,
A first step of inhaling a second predetermined amount V2 that is greater than or equal to the first predetermined amount V1, and a second step of ejecting the liquid in the syringe to the ejection position by the first predetermined amount V1. When a plurality of predetermined articles are continuously produced by repeating the above procedure, at least a third predetermined amount V3 of the liquid is always present in the syringe through the first step and the second step. The feature is to let.

Further, in the liquid constant quantity supply method according to the present invention, the first step is a first sub-step of projecting the liquid in a convex shape by a fourth predetermined amount V4 from the tip of the syringe. A second sub-step of immersing the tip of the syringe in the liquid in the container with the liquid protruding from the tip of the syringe in the convex shape; Liquid is V2 = (V1 + V
3) Inhaling only the second predetermined amount V2 represented by 4)
And a sub-process.

Further, in the liquid constant quantity supply method according to the present invention, the first step comprises a fourth sub-step of immersing the tip of the syringe in the liquid in the container, and the liquid in the syringe. A fifth sub-step of inhaling only the second predetermined amount V2 into the inside, and a sixth sub-step of pulling up the distal end portion of the syringe from the liquid in the container,
A seventh sub-step of wiping off the liquid adhering to the periphery of the tip of the syringe.

In the liquid constant quantity supply method according to the present invention, in the first step, V2 is obtained by adding the first predetermined amount V1 and the fifth predetermined amount V5 to the liquid in the syringe. = (V1 + V5), the second predetermined amount V2 is inhaled, and the second step is the eighth sub-step in which the liquid is idle-discharged by the fifth predetermined amount V5; and the liquid. And a ninth sub-step of ejecting the first predetermined amount V1 to the ejection position.

In the liquid constant quantity supply method according to the present invention, the first step includes a tenth sub-step of projecting the liquid in a convex shape by a sixth predetermined amount V6 from the tip of the syringe. An eleventh sub-step of immersing the tip of the syringe in the liquid in the container in a state where the liquid is projected in a convex shape from the tip of the syringe; A twelfth sub-inhalation of liquid by the second predetermined amount V2 represented by V2 = (V1 + V6 + V7) obtained by adding the first predetermined amount V1, the sixth predetermined amount V6 and the seventh predetermined amount V7 And a process,
In the second step, the liquid is added to the seventh predetermined amount V7.
It is characterized by comprising a thirteenth sub-step of performing blank discharge only and a fourteenth sub-step of discharging the liquid to the discharge position by the first predetermined amount V1.

Further, the liquid constant amount supply method of the present invention is the liquid constant amount supply method for accurately supplying a predetermined liquid to each of n discharge positions by a first predetermined amount V1. A first predetermined amount V2 that is equal to or more than a total supply amount (n × V1) as a sum of the first predetermined amount V1 for n times is sucked from the container containing By repeating the step and the second step of ejecting the liquid in the syringe to the n ejection positions by the first predetermined amount V1, respectively, a plurality of predetermined articles are continuously produced. In this case, at least the third predetermined amount V3 of the liquid is always present in the syringe through the first step and the second step.

Further, in the liquid constant amount supply method according to the present invention, the first step is a first sub-step of projecting the liquid in a convex shape by a fourth predetermined amount V4 from the tip portion of the syringe. A second sub-step of immersing the tip of the syringe in the liquid in the container with the liquid protruding from the tip of the syringe in the convex shape; Liquid is V2 = (n × V1 +
And a third sub-step of inhaling only the second predetermined amount V2 represented by V4).

Further, in the liquid constant amount supply method according to the present invention, the first step comprises a fourth sub-step of immersing the tip of the syringe in the liquid in the container, and the liquid in the syringe. A fifth sub-step of inhaling only the second predetermined amount V2 into the inside, and a sixth sub-step of pulling up the distal end portion of the syringe from the liquid in the container,
A seventh sub-step of wiping off the liquid adhering to the periphery of the tip of the syringe.

Further, in the liquid constant amount supply method according to the present invention, in the first step, the total supply amount (n × V1) and a fifth predetermined amount V of the liquid are stored in the syringe.
The second predetermined amount V2 represented by V2 = (n × V1 + V5) is added, and in the second step, the liquid is idle-discharged by the fifth predetermined amount V5. And a ninth sub-step of ejecting the liquid to the n ejection positions by the first predetermined amount V1, respectively.

Further, in the liquid constant amount supply method according to the present invention, the first step is a tenth sub-step of projecting the liquid in a convex shape by a sixth predetermined amount V6 from the tip portion of the syringe. An eleventh sub-step of immersing the tip of the syringe in the liquid in the container in a state where the liquid is projected in a convex shape from the tip of the syringe; The total supply amount (n × V1) of liquid, the sixth predetermined amount V6, and the seventh predetermined amount V
7 is added to the second predetermined amount V2 represented by V2 = (n × V1 + V6 + V7), which is a twelfth sub-step. The method is characterized by comprising a thirteenth sub-step of performing a blank discharge of a fixed amount V7 and a fourteenth sub-step of discharging the liquid to the n discharge positions by the first predetermined amount V1 respectively.

[0018]

As described above, the method for quantitatively supplying a liquid according to the present invention is configured. Therefore, when the liquid is sucked and discharged, a certain amount of the liquid is left in the syringe, so that the tip of the syringe is It is possible to supply the liquid with high accuracy because air does not enter the part and the liquid does not adhere and remain on the inner wall of the part.

Further, this makes it possible to accurately supply the liquid even if the liquid is sucked and discharged repeatedly using the same syringe, so that it is not necessary to replace the syringe each time the liquid runs out, Productivity can be improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. This method for quantitatively supplying a liquid, when a plurality of predetermined articles are continuously manufactured,
It is used in the manufacturing process. That is, this quantitative supply method also supplies a predetermined amount of a predetermined liquid one after another to each of a plurality of continuously manufactured articles. Hereinafter, a case where this quantitative supply method is applied to an article manufacturing apparatus will be described.

First, before explaining the method for quantitatively supplying the liquid, the structure of a manufacturing apparatus to which the method is applied, particularly the part of the liquid supplying apparatus will be schematically described with reference to FIG. In FIG. 1, reference numeral 42 indicates a main body of an article manufacturing apparatus 40, and the manufacturing apparatus main body 42 is arranged on the floor surface of a factory or the like. This manufacturing device body 42
A robot (not shown) is provided above the liquid supply device 12 is attached to the tip of an arm portion 44 of the robot. The arm portion 44 is three-dimensionally movable in the vertical and horizontal directions in the drawing and in the direction perpendicular to the paper surface with respect to the manufacturing apparatus main body 42 by the operation of the robot. Therefore, the supply device 12 can also be moved three-dimensionally with respect to the manufacturing apparatus main body 42.

This supply device 12 is similar to the conventional supply device using a syringe and a piston shown in FIG. 9, but its configuration will be described in some detail. A substantially U-shaped support member 14 that constitutes the frame of the supply device 12.
Is attached to the arm portion 44 with the arm portions 14a and 14b along a horizontal line. A syringe 22 is attached to the lower arm portion 14b of the U-shaped support member 14. The syringe 22 is detachably attached to a cylindrical syringe main body 24 having a space for containing a liquid therein, a piston 26 inserted in the syringe main body 24, and a tip end portion of the syringe main body 24, and a tip end of the syringe 22. And a needle 28 forming a part. The syringe body 24 is detachably attached to the tip of the lower arm portion 14b of the U-shaped support member 14 with its central axis aligned with the vertical line.

A slide member 30 is attached to the upper end of the piston 22. The slide member 3
When 0 moves in the vertical direction (direction along the axis of the syringe) with respect to the U-shaped support member 14, the piston 26 moves up and down in the syringe 24, and the liquid 11 is sucked and discharged. The mechanism for moving the piston 26 in the vertical direction with respect to the U-shaped support member 14 is configured as follows. A guide shaft 16 is fixed between the upper and lower arm portions 14a and 14b of the U-shaped support member 14 with its axis aligned with the vertical line. A ball screw 18 is rotatably supported between the upper and lower arms 14a and 14b of the U-shaped support member 14 while being parallel to the guide shaft 16. At the upper end of the ball screw 18, a stepping motor 20 fixed to the upper arm 14a of the U-shaped support member 14 is provided.
The stepping motor 20 rotates so that the ball screw 18 is rotationally driven around the axis of the support member 14 by the rotation of the stepping motor 20.

On the other hand, the slide member 30 attached to the upper end of the piston 26 is provided with a fitting hole for fitting with the guide shaft 16, and at a position adjacent to the fitting hole, A ball bush that fits into the ball screw 18 is attached. Therefore, when the stepping motor 20 rotates, the slide member 30
While being guided by the guide shaft 16, the ball screw 1
8 will be driven in the up-down direction. And
The amount of vertical movement of the piston 26 is determined by the number of rotation steps of the stepping motor 20.
The suction and discharge amounts of the liquid 11 are controlled.

The syringe body 24 is composed of the support member 14
As described above, it is removably attached to the lower arm portion 14b, and the piston 26 is also removably attached to the slide member 30.
The syringe 22 can be removed from the support member 14 as needed. A wiping device 46 for wiping off the liquid 11 adhering to the needle 28 at the tip of the syringe is arranged at one location on the upper surface of the manufacturing apparatus body 42. The wiping device 46 is one in which two air cylinders 46b each having a sponge 46d attached to its tip end are arranged on the wiping device body 46a arranged on the manufacturing apparatus body 42. The main body 46a of the wiping device has a U-shape that opens upward, and one air cylinder 46b is provided on each of the two U-shaped tip portions so that the central axis of the air cylinder 46b extends along the horizontal line. They are arranged in a state of facing each other. The sponge 4 is attached to each of the cylinder rods 46c of the two air cylinders 46b.
6d is attached. Therefore, by operating these air cylinders 46b, each sponge 4
The interval of 6d is narrowed, the needle 28 is sandwiched between these sponges 46d, and the needle 28 is moved upward, whereby the liquid 11 attached to the tip of the needle 28 can be wiped off. And sponge 46
The liquid 11 that is not completely absorbed by d falls onto the tray 47 arranged on the wiping device main body 46a.

Next, the procedure of actually supplying the liquid by the supply device 12 in the manufacturing apparatus 40 configured as described above will be described with reference to FIGS. 2 to 8. First, as a pre-stage for performing the liquid supply operation, as shown in FIG. 2A in the syringe 22, from the inside of the container 48 arranged on the manufacturing apparatus main body 42, for example, 1 volume of the total volume of the syringe main body 24 is
The liquid 11 of about 0 to 20% is inhaled. In this state, in order to prevent air other than liquid from being mixed in the syringe body 24, as shown in FIG. 2 (b), the syringe 22 is in a state in which its tip end faces upward. so,
The piston 26 is pushed, and the air that has entered the syringe body 24 is pushed out of the syringe body 24. After performing the air venting operation as described above, only the liquid 11 to be supplied remains in the syringe body 24, and the amount thereof is 10 to 20% of the total volume of the syringe body 24 when the air is vented. It is the amount less the amount discharged. Then, the syringe 22 is attached to the supply device 12 as shown in FIG.

After the initial setting as described above, the actual supply operation is started, and the filling of the liquid 11 into the syringe body 24 and the discharge operation of the liquid in the syringe body 24 are repeated. First, as shown in FIG. 3, the stepping motor 20 is driven, the piston 26 is slightly lowered, and the liquid 11 is projected from the tip of the needle 28 in a convex shape. Here, in the article manufacturing apparatus using this supply method, the amount of liquid discharged to one discharge position to which the liquid 11 is to be supplied is V1cc. Further, it is assumed that by filling the syringe 11 with the liquid 11 once, the liquid of V1cc is supplied to each of the n discharge positions.

At this time, as shown in FIG.
The ejection amount when the liquid is projected in a convex shape from the tip of the is set to, for example, V1 / 10 cc. In this way, with the liquid protruding in a convex shape from the tip of the needle 28, the arm portion 44 of the robot is moved downward to move the tip of the needle 28 into the liquid container 48 in which the liquid 11 is stored. As it is lowered, the tip of the needle 28 is immersed in the liquid 11 as shown in FIG. In this way, in the state where the liquid is projected in a convex shape from the tip of the needle 28, the tip of the needle 28 is dipped into the liquid 11 so that air in the syringe main body 24 is sucked in the subsequent suction step of the liquid 11. Can be prevented.

Next, as shown in FIG. 5, the stepping motor 20 is operated to suck the liquid 11 into the syringe body 24. The inhalation amount at this time is, for example, (n + 1 + 1 /
10) × V1cc. The breakdown of the suction amount of the liquid 11 is the amount that n × V1cc is discharged to the actual supply point (discharging position), and 1/10 × V1cc is the amount of liquid that will be discharged in the next filling step of the liquid into the syringe body 24. The amount of the liquid 11 to be ejected from the tip of the needle 28 when the needle 28 is dipped into the nozzle 11, and 1 × V1cc is the amount to be ejected in the idle ejection step described later.

Next, the tip of the needle 28 is pulled up from the liquid 11 and the liquid 11 adhering to the tip is wiped off by the wiping device 46. Firstly, as shown in FIG.
Supplying device 12 so that it is positioned between two sponges 46d
To move. Next, the two air cylinders 46b are operated as shown in FIG.
The tip of the needle 28 is sandwiched between them. In this state,
As shown in FIG. 6C, the supply device 12 is moved upward and the liquid 11 attached to the needle 28 is wiped off. At this time, the liquid 11 not absorbed by the sponge 46d
Fall on the saucer 47. After that, the operation of the two air cylinders 46b is released, and the state shown in FIG. 6A is returned.

In this way, by wiping off the liquid 11 attached to the tip of the needle 28, the attached liquid 11 mixes with the liquid 11 to be discharged, and the liquid 1
It is possible to prevent the supply amount of 1 from becoming inaccurate. Next, as shown in FIG. 7, the blank discharge is performed on the tray 49 at a place different from the place where the liquid 11 is actually supplied. The amount of liquid ejected at this time is one ejection amount, that is, V1cc. In this way, the state of the liquid 11 at the tip of the needle 28 at the time of starting the formal discharge to the first position of the n supply positions (discharge positions) by performing the idle discharge for one time Can be matched with the state of the liquid 11 at the tip of the needle 28 in the second and subsequent discharges. This makes it possible to
It is possible to prevent a change in the supply amount of the liquid 11 at the time of ejection after the point.

Then, as shown in FIG. 8, the liquid 11 is formally ejected in increments of V1 cc on the supply target member 45 to be supplied with the liquid arranged at the n supply positions. When all the n times of ejection have been completed, 1/10 × V1cc of liquid is ejected from the tip of the needle again as shown in FIG. 3, and the tip of the needle is immersed in the liquid container 48.
In this way, the operations shown in FIGS. 3 to 8 are repeated.
In this repeated operation, the amount of the liquid filled in the syringe main body 24 and the total discharge amount discharged thereafter are the same, so that a constant amount of the liquid 11 is always left in the syringe main body 24. It will be. In addition, during the second and subsequent filling operations of the liquid 11, the syringe body 2
Since a certain amount of liquid remains in 4 as described above,
It is not necessary to prepare as shown in FIG.

As described above, in the liquid quantitative supply method of the one embodiment, when the liquid is sucked and discharged, a constant amount of liquid is always left in the syringe body 24.
Gas may enter the tip of the syringe or the needle 28
It is possible to supply the liquid 11 with high accuracy, because the liquid does not adhere and remain on the inner wall of the tip portion of the. In addition, since a certain amount of the liquid 11 is left in the syringe body 24, the liquid 1 sucked in is at least slightly smaller than the required supply amount of the liquid 1 remaining in the syringe body 24.
Since the shortage can be compensated by 1, the need to precisely manage the amount of the liquid 11 to be inhaled is eliminated.

Before the tip of the needle 28 is dipped in the liquid 11, the liquid 11 is made to project in a convex shape at the tip, and the needle 28 is dipped in the liquid 11 in this state. It is possible to prevent air from being sucked into the syringe body 24 when the liquid 11 is sucked into the syringe body 24. Further, since the liquid 11 is wiped from the tip of the needle 28 after the liquid 11 is sucked into the syringe body 24, the liquid 11 attached to the tip of the needle 28 does not mix with the liquid 11 to be supplied. The supply amount of the liquid 11 can be accurately controlled.

Further, since the single blank discharge is performed at another place before the formal discharge, the tip portion of the needle 28 at the first formal discharge and the second and subsequent discharges. Since the states of the liquid 11 of the above are the same, it is possible to prevent the discharge amount of the first time and the discharge amount of the second time and thereafter from changing. Further, by repeating the suction and the discharge of the liquid with one syringe, it is possible to save the labor of replacing the syringe, so that the working time is shortened and the productivity is improved.

It is needless to say that the present invention can be applied to a modified or modified version of the above embodiment without departing from the spirit of the invention. For example, in the above-mentioned embodiment, it is explained that all the steps shown in FIGS. 3 to 8 are performed, but the steps shown in FIGS. 3, 6 and 7, that is, the liquid is projected from the tip of the needle into a convex shape. It is possible to omit the step of projecting the liquid, the step of wiping the liquid from the tip of the needle, and the step of idly discharging the liquid depending on the situation. Even if only a certain amount of the liquid is left in the syringe, it is possible to prevent the liquid from remaining on the inner wall of the tip of the needle at the time of discharging the liquid, which is sufficiently effective.

In the liquid suction process shown in FIG. 5, the syringe is filled with an amount corresponding to one discharge amount, and only one discharge is performed in the formal discharge process shown in FIG. You can do it as well. Further, although the liquid is supplied to one place by one discharge, the required amount of liquid may be supplied to one place by a plurality of discharges.

Further, in the above embodiment, as the initial setting,
As shown in FIG. 2, an air vent operation is performed to discharge the air sucked into the syringe to the outside of the syringe. However, even if the air is sucked together when the liquid is sucked in without performing this operation, If a certain amount of liquid is left in the syringe at the time of discharging the liquid, air does not enter the needle, so that the liquid is prevented from adhering and remaining on the inner wall of the needle. However, interposing a compressible gas between the liquid and the piston is an element that makes it difficult for the amount of drop of the piston and the amount of discharge of the liquid to match accurately, so the air venting operation described above was performed. Is preferred.

Further, when the tip of the needle is immersed in the liquid, the discharge amount of the liquid is V1 / 10 cc, and the discharge amount of the blank discharge is V1.
However, the present invention is not limited to this value. Further, it goes without saying that the liquid described in the above embodiments can be applied to a liquid having a low viscosity like water to a liquid having a high viscosity like grease.

[0040]

As described above, according to the liquid constant amount supply method of the present invention, a certain amount of liquid is left in the syringe when the liquid is sucked and discharged, so that the tip portion of the syringe is It is possible to supply the liquid with high accuracy, because air does not enter and the liquid does not adhere and remain on the inner wall.

Further, as a result, the liquid can be accurately supplied even if the liquid is sucked and discharged repeatedly using the same syringe, so that it is not necessary to replace the syringe each time the liquid runs out. Productivity can be improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a manufacturing apparatus to which a liquid quantitative supply method according to an embodiment is applied.

FIG. 2 is a diagram showing a preparatory step of supplying a liquid.

FIG. 3 is a diagram showing a state in which a liquid is projected upward from a tip of a needle.

FIG. 4 is a diagram showing a state in which the tip of a needle is immersed in a liquid.

FIG. 5 is a view showing a state where a syringe is filled with a liquid.

FIG. 6 is a diagram showing a procedure for wiping the liquid from the tip of the needle.

FIG. 7 is a diagram showing a state in which a liquid is discharged in idle.

FIG. 8 is a diagram showing a state where liquid is supplied onto a member to be supplied.

FIG. 9 is a diagram showing one configuration of a conventional liquid supply device.

FIG. 10 is a diagram showing a conventional liquid supply method.

FIG. 11 is a view showing another configuration of the conventional liquid supply apparatus.

[Explanation of symbols]

11 liquid 12 Supply device 14 Support members 16 Guide shaft 18 ball screw 20 stepping motor 22 syringe 24 Syringe body 26 pistons 28 needles 30 slide members 40 Manufacturing equipment 42 Manufacturing equipment body 44 Arm 45 supplied member 46 Wiping device 47 saucer 48 liquid containers 49 saucer

Claims (11)

[Claims] 1. A method for quantitatively supplying a predetermined amount of a predetermined liquid by a first predetermined amount V1, wherein the liquid is supplied from a container containing the predetermined liquid into a syringe at the first position. Second predetermined amount V2, which is larger than the fixed amount V1
And a second step of ejecting the liquid in the syringe to the ejection position by the first predetermined amount V1. 2. A method for supplying a fixed amount of a predetermined liquid by a predetermined predetermined amount V1 accurately, comprising: supplying the liquid from a container containing the predetermined liquid into a syringe; By repeating the first step of inhaling the second predetermined amount V2 which is the predetermined amount V1 or more and the second step of ejecting the liquid in the syringe to the ejection position by the first predetermined amount V1 In the case of continuously producing a plurality of predetermined articles, at least a third predetermined amount V3 of the liquid is always present in the syringe through the first step and the second step. A method for quantitatively supplying a liquid. 3. The first step comprises: a first sub-step of projecting the liquid convexly by a fourth predetermined amount V4 from the tip of the syringe; The second sub-step of immersing the liquid in the container in a state where the liquid is projected in the convex shape from the tip portion, and the liquid in the container is stored in the syringe by V2 = (V1 + V).
3) Inhaling only the second predetermined amount V2 represented by 4)
3. The method for quantitatively supplying a liquid according to claim 2, further comprising: 4. The fourth sub-step of immersing the tip of the syringe in the liquid in the container in the first step,
A fifth sub-step of sucking the liquid into the syringe by the second predetermined amount V2, a sixth sub-step of pulling up the tip of the syringe from the liquid in the container, and a tip of the syringe A seventh sub-step of wiping off the liquid adhering to the periphery of the portion, the method for supplying a fixed amount of liquid according to claim 2. 5. The second step represented by V2 = (V1 + V5) in which the first predetermined amount V1 and the fifth predetermined amount V5 are added to the liquid in the syringe in the first step. Of a predetermined amount V2 of the liquid, the second step includes an eighth sub-step of discharging the liquid by the fifth predetermined amount V5 in an idle state, and the discharge position of the liquid by the first predetermined amount V1 at the discharge position. The ninth sub-process of ejecting the liquid to the liquid according to claim 2, wherein the constant amount supply method of the liquid according to claim 2. 6. The tenth sub-step of projecting the liquid convexly by a sixth predetermined amount V6 from the tip of the syringe, and the tip of the syringe in the first step. An eleventh sub-step of immersing the liquid in the container in a state where the liquid is projected in the convex shape from a tip end portion;
The second liquid represented by V2 = (V1 + V6 + V7) obtained by adding the first predetermined amount V1, the sixth predetermined amount V6, and the seventh predetermined amount V7 to the liquid in the container in the syringe.
And a twelfth sub-step of inhaling a predetermined amount V2 of the liquid.
The liquid according to claim 2, further comprising a thirteenth sub-process for performing a blank discharge of 7 and a fourteenth sub-process for discharging the liquid by the first predetermined amount V1 to the discharge position. Quantitative supply method. 7. A liquid quantitative supply method for accurately supplying a predetermined liquid to a discharge position of n places by a first predetermined amount V1, wherein a syringe is used to supply the liquid from a container containing the predetermined liquid. A first step of inhaling a second predetermined amount V2 which is equal to or more than a total supply amount (n × V1) as a sum of the first predetermined amount V1 of n times, and the liquid in the syringe. In the case where a plurality of predetermined articles are continuously produced by repeating the second step of ejecting the first predetermined amount V1 at each of the n ejection positions, the first step and the A method for quantitatively supplying a liquid, wherein at least a third predetermined amount V3 of the liquid is always present in the syringe through the second step. 8. The first sub-step of projecting the liquid convexly by a fourth predetermined amount V4 from the tip of the syringe, and the tip of the syringe in the first step. A second sub-step of immersing the liquid in the container in a state where the liquid is projected in the convex shape from the tip portion, and the liquid in the container is stored in the syringe by V2 = (n × V1).
And a third sub-step of inhaling the second predetermined amount V2 represented by + V4).
The method for quantitatively supplying the liquid according to the item 1. 9. The fourth sub-step of immersing the tip of the syringe in the liquid in the container in the first step,
A fifth sub-step of sucking the liquid into the syringe by the second predetermined amount V2, a sixth sub-step of pulling up the tip of the syringe from the liquid in the container, and a tip of the syringe The liquid supply method according to claim 7, further comprising: a seventh sub-step of wiping off the liquid adhering to the periphery of the portion. 10. The first step is represented by V2 = (n × V1 + V5) obtained by adding the total supply amount (n × V1) and a fifth predetermined amount V5 of the liquid into the syringe. The second sub-step of inhaling the liquid by the second predetermined amount V2, and the second sub-step of idly ejecting the liquid by the fifth predetermined amount V5; and the liquid at the n ejection positions. The liquid supply method according to claim 7, further comprising: a ninth sub-step of ejecting only the first predetermined amount V1. 11. The tenth sub-step of projecting the liquid convexly by a sixth predetermined amount V6 from the tip of the syringe, and the tip of the syringe in the first step. Eleventh sub-step of immersing the liquid in the container in a state where the liquid is projected in the convex shape from the tip, and the total supply amount (n × V1) of the liquid in the container into the syringe. And a twelfth sub-step of inhaling only the second predetermined amount V2 represented by V2 = (n × V1 + V6 + V7) obtained by adding the sixth predetermined amount V6 and the seventh predetermined amount V7, The second step is a thirteenth sub-step in which the liquid is idle-discharged by the seventh predetermined amount V7, and a fourteenth sub-step is performed in which the liquid is discharged by the first predetermined amount V1 at each of the n discharge positions. 8. The sub-process of claim 7 is included. Dispensing method of the liquid of the mounting.