JP2010139347A - Method and apparatus for weighing and supplying liquid material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately quantify and measure a liquid material 200, and efficiently and to supply the fixed quantity of the liquid material to a predetermined supplied place, without fail. <P>SOLUTION: An apparatus includes a liquid material storing section 100; a liquid material measuring section 300; a discharge section 400 for discharging the fixed quantity of the measured liquid material; a compressed air supply section 500 for supplying compressed air to the discharging section 400 of the liquid material; and a path-switching section 600. Since a communication path 601 between the liquid material storing section 100 and the liquid material measuring section 300, the communication path between the liquid material measuring section 300 and the discharging section 400, and the communication path between the discharge section 400 and the compressed air supply section 500 are connected or disconnected by the path-switching section 600; the liquid material 200 within the liquid material storing section 100 is transferred to the liquid material measuring section 300, and measured. The fixed quantity of the measured liquid material 201 is supplied to the predetermined place through the discharge section 400. The compressed air 502 is supplied to the path-switching section 600 and the discharge section 400 so that a portion of the fixed quantity of the measured liquid material 201 is efficiently prevented from accumulating at the location. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention measures liquid substances such as liquid resin molding materials and other liquids having fluidity, and reliably supplies a predetermined amount of the liquid substance (a predetermined fixed amount) to a predetermined supply location. In more detail, the present invention relates to an improvement in the metering method and the apparatus for carrying out the method, and more specifically, a liquid substance that can perform quantitative measurement of the liquid substance with high accuracy and can reliably supply the fixed quantity of liquid substance. The present invention relates to a metering supply method and an apparatus improved to simplify and reduce the size of a device for carrying out this method.

In the case of molding a small resin molded product, for example, a resin lens, a preliminary molded product is formed by measuring the amount of resin required for molding the lens in advance in order to improve the effective utilization rate of the resin material. Then, this preliminarily molded product is supplied into a mold and a lens having a predetermined shape is molded.
For example, as shown in FIG. 6, first, the liquid resin material 2 plasticized by the plasticizing mechanism 1 is extruded while being stirred by the screw 11 in the plasticizing mechanism, and placed in a cylinder 3 provided in the vertical direction. Then, the liquid resin material 21 in the cylinder 3 is transferred upward while being pressurized by the piston 30 and discharged from the discharge port 31 provided at the upper end of the cylinder to the upper surface position of the plate 4. Next, the resin material 22 discharged on the upper surface of the plate 4 is cut by the cutter 5 so that the fixed amount of the resin material 22 (preliminary molded product) is supplied into a molding die (not shown). A configured resin material measuring device has been proposed (see Patent Document 1).
Japanese Patent Laid-Open No. 2008-190996 (FIGS. 1 and 4)

According to the above-described configuration of the resin material measuring device, the amount of the resin material 22 discharged to the upper surface position of the plate 4 is determined by the upward movement length of the piston 30 in the upper and lower cylinders 3, so that highly accurate weighing is possible. You can expect to do it.
On the other hand, in such a configuration of the weighing device, since it is necessary to include the plasticizing mechanism 1 and the like, there is a problem that the overall shape of the device is necessarily increased.
Further, in the configuration of this apparatus, as described above, first, the resin material is melted by heating and frictional heat while stirring with the screw 11 to produce the liquid resin material 2 having fluidity. The resin material is injected and filled in the upper and lower cylinders 3, and then the liquid resin material 21 in the upper and lower cylinders is discharged to the upper surface position of the plate 4, and then the discharged resin material is cut by the cutter 5. In order to form a preliminary molded product (22) and to supply this preliminary molded product into the mold, the resin discharged from the resin material heating and melting process through the liquid resin material measurement process There is a problem that a series of resin material measurement such as performing a material cutting process and supplying the cut discharged resin material into the mold, and temperature control of the resin material in each process of the supply become troublesome. is there.
Further, as described above, the resin material measuring device first measures the amount of resin necessary for molding to form a preliminary molded product, and then supplies the preliminary molded product into the mold. Therefore, a predetermined amount of the liquid resin material is measured, and the fixed amount of the liquid resin material is supplied to a predetermined supply location in a liquid state having fluidity. In such a case, it is unsuitable, and there is a problem that it cannot be used substantially.

An object of the present invention is to provide a liquid substance metering method and apparatus capable of performing quantitative measurement of a liquid substance with high accuracy and reliably supplying the quantitative liquid substance. .
In addition, the present invention improves the operability of the device by simplifying and downsizing the overall shape of the liquid substance metering device, and facilitates the replacement work of the device components. It is possible to immediately adapt to the change of the liquid substance, and to reduce the time for quantitative measurement of the liquid substance and the supply time of the fixed quantity liquid substance, so that the temperature control of the liquid substance can be performed efficiently and reliably. It is an object of the present invention to provide a method and apparatus for metering and supplying a liquid substance capable of reliably preventing residual in the apparatus.

The invention according to claim 1 for solving the above-mentioned problem is a method for measuring and supplying a liquid substance for measuring a fixed amount by measuring a liquid substance and supplying the fixed liquid substance to a predetermined location, The liquid substance is stored in the storage part, and the liquid substance is stored.
Next, the liquid substance stored in the storage part is transferred to the measuring part via the passage switching part, and the liquid substance is quantitatively measured to measure the quantity by measuring it.
Next, through the passage switching unit, perform a quantitative liquid substance discharge step of transferring the quantitative liquid material passed through the quantitative measurement step to the discharge unit,
Next, it is characterized in that a stagnant liquid material discharging step is performed in which compressed air is supplied to the passage switching portion and the discharge portion to discharge the stagnant liquid material in the passage switching portion and the discharge portion to the outside.

  Further, the invention according to claim 2 for solving the above-described problem is provided in the storage section between the liquid substance storage step and the liquid substance quantitative measurement step in the invention according to claim 1. A pressurizing and transferring step of transferring the liquid substance that is transferred to the weighing unit side in a state where the stored liquid substance is pressurized is performed.

  Further, the invention according to claim 3 for solving the above-mentioned problem is that the liquid substance storage step, the liquid substance quantitative measurement step, the quantitative liquid substance discharge step and the stagnant liquid in the invention according to claim 1 described above. In all or a part of the substance discharging process, a temperature control process of the liquid substance for cooling or heating the liquid substance is performed.

  Further, the invention according to claim 4 for solving the above problem is that the liquid material in the invention according to claim 1, claim 2 or claim 3 is used for sealing molding of electronic parts. It is a material.

  Further, the invention according to claim 5 for solving the above problem is that the liquid substance in the invention according to claim 1, claim 2, or claim 3 is a liquid heat used for sealing molding of electronic parts. It is a curable resin material.

The invention according to claim 6 for solving the above-described problem is a liquid substance metering device for measuring a quantity by measuring a liquid substance and supplying the fixed liquid substance to a predetermined location. And
A liquid material reservoir for storing liquid material;
A liquid substance measuring unit for measuring the liquid substance stored in the storage unit and measuring the quantity;
A quantitative liquid substance discharging section for transferring the liquid substance measured by the measuring section to a supply destination;
A compressed air supply unit to the discharge unit;
In order to connect the storage part of the liquid substance and the measurement part of the liquid substance, the measurement part of the liquid substance and the discharge part of the quantitative liquid substance, or the discharge part of the quantitative liquid substance and the compressed air supply part And a passage switching unit that forms the communication passage.

  Further, an invention according to claim 7 for solving the above-described problem is that the measuring unit is configured by pressurizing the liquid substance stored in the storage part to the storage part of the liquid substance in the invention according to claim 6. It is characterized in that a pressurizing and transferring means for the liquid substance to be transferred to the side is provided.

  An invention according to an eighth aspect of the invention for solving the above-described problem includes a cylinder in which the liquid material measuring section according to the sixth aspect of the invention is connected in communication with the communication path of the path switching section. It is comprised from the plunger closely fitted in the cylinder, and the reciprocating drive mechanism for driving this plunger reciprocatingly.

  Further, an invention according to claim 9 for solving the above-mentioned problem is that a fixed amount of the liquid substance measured by the liquid substance measuring section in the invention according to claim 8 is closely fitted in the cylinder. It is set based on the stroke length of the reciprocating movement of the plunger.

  Further, the invention according to claim 10 for solving the above-mentioned problem is the liquid substance storage part, the liquid substance metering part, the quantitative liquid substance discharge part, and the compressed air supply in the invention according to claim 6. The liquid material temperature management means for cooling or heating the liquid material is disposed in all or a part of the part.

  The invention according to an eleventh aspect for solving the above-mentioned problems is that the liquid substance storage part, the liquid substance measuring part and the quantitative liquid substance discharge part in the invention according to the sixth aspect are provided to the apparatus main body. And is configured to be detachable.

According to the present invention, quantitative measurement of a liquid substance can be performed with high accuracy, and the fixed quantity of liquid substance can be reliably transferred and supplied to a predetermined position.
In particular, since the shape of the apparatus can be simplified and reduced in size, the handling and operability of the apparatus can be improved, and the quantitative measurement of the liquid substance and the transfer supply operation to a predetermined position can be easily performed.
In addition, since the replacement work of the device components is facilitated, it is possible to immediately adapt to the change of the liquid material to be weighed, and the maintenance and inspection work of the device can be simplified.
Further, since the quantitative measurement of the liquid substance and the supply time of the quantitative liquid substance can be shortened, the temperature control for the liquid substance can be performed efficiently and reliably.
Furthermore, since liquid substances remaining in the apparatus can be prevented efficiently and reliably, problems such as measurement problems caused by liquid substances remaining in the apparatus and problems in transporting and supplying liquid substances can occur. Can be prevented.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 schematically shows the overall shape of a liquid material metering device according to the present invention, and FIG. 2 is an enlarged longitudinal sectional view showing the liquid material metering device, FIGS. 3 to 5. FIG. 3 is an explanatory view of each step of metering and supplying using the metering device for liquid material.

  First, with reference to FIG.1 and FIG.2, the whole structure of the measurement and supply apparatus A of the liquid substance which concerns on this invention is demonstrated.

  In the liquid substance metering apparatus A described above, a storage part 100 for storing the liquid substance 200 having fluidity, and the liquid substance 200 stored in the storage part of the liquid substance are weighed and the quantity is measured. 2 for measuring the liquid substance to be measured, the discharge part 400 for the quantitative liquid substance measured by the measurement part for the liquid substance, the compressed air supply part 500 to the discharge part for the quantitative liquid substance, and FIG. As shown in an enlarged view, the liquid substance storage unit 100 and the liquid substance measuring unit 300, or the liquid substance measuring unit 300 and the quantitative liquid substance discharge unit 400, or the quantitative liquid substance discharge unit 400 and There is provided a passage switching portion 600 having a communication passage 601 for connecting the compressed air supply portion 500 to each other in a communicating state.

  In addition, the liquid material reservoir 100, the liquid material metering unit 300, and the metered liquid material discharging unit 400 described above are detachable from the insert plate 700 constituting the main body of the metering supply device A, as will be described later. It is mounted so that it can be easily attached and detached.

The passage switching unit 600 is disposed at the center of the insert plate 700.
As shown in FIG. 2 (2), the passage switching unit 600 includes a cylindrical mounting member 701 disposed in the front-rear direction in the figure, and a rotatable and densely (within the cylindrical mounting member). And a rotation control mechanism 603 such as a servo mechanism for controlling the rotation of the branch valve member to a predetermined rotational angle position (see FIG. 1 (2)). ) Is provided.
The cylindrical mounting member 701 is fixed to the insert plate 700 by an appropriate rotation stop member (not shown). Therefore, the cylindrical mounting member is prevented from rotating with respect to the insert plate 700. Is provided.
In addition, a communication port 702 with the storage unit 100 side is provided at an upper position on the virtual same circumference of the cylindrical mounting member 701, and a communication port 703 with the discharge unit 400 side is provided at a lower position. One side position (right side in the figure) has a communication port 704 with the measuring unit 300 side, and the other side position (left side in the figure) has the compressed air supply part. A communication port 705 with the 500 side is formed.
Further, when the branch valve member 602 is rotated in response to an instruction from a control unit (not shown), the position of the communication passage 601 formed in the branch valve member 602 is measured with the storage unit 100 as described above. The unit 300, or the metering unit 300 and the discharge unit 400, or the discharge unit 400 and the compressed air supply unit 500 are connected in communication.

The liquid substance reservoir 100 is mounted so as to be detachable from a connection hole 706 with an upper communication port 702 in a cylindrical mounting member 701 fitted to the insert plate 700.
In the illustrated example, a resin cylinder 101 having one end (upper end) opened is used, and the connection portion 101a at the other end (lower end) is closely fitted to the connection hole 706.
In a normal case, the cylinder 101 is held on the upper surface of the insert plate 700 via a cylinder guide 102 and a fixing member 103 of the cylinder guide. However, when replacing the cylinder 101, only the cylinder 101 is removed from the cylinder guide 102. It is provided so that it can be extracted.
The size of the cylinder 101 is an example of a small one that can store a small amount of the liquid substance 200 or an amount necessary for performing several measurements. In the case where the supply is repeated, for example, a liquid substance storage tank 104 or the like may be directly attached to the upper end opening of the cylinder 101 (see FIG. 2 (1)). A configuration may be adopted in which the upper end opening 101 and the liquid material container are connected to each other via an appropriate feeding path (not shown).

The liquid substance measuring unit 300 is mounted so as to be detachable from a mounting hole 707 provided to communicate with the communication port 704 in the cylindrical mounting member 701 fitted to the insert plate 700. Yes.
In the illustrated example, a resin cylinder 301 having one end (right end) opened is used, and the connection portion 301a at the other end (left end) is closely fitted to the mounting hole 707.
In a normal case, the cylinder 301 is fixed and held on one end surface (right side surface) of the insert plate 700 via a fixing member 302. However, when replacing the cylinder 301, the cylinder 301 is removed by removing the fixing member 302. The cylinder 301 is provided so that it can be extracted from the mounting hole 707.
Further, in this cylinder 301, a resin plunger 304 having a sealing member 303 made of elastic rubber or the like fixed at the tip (left end) portion is closely fitted.
Further, the plunger 304 is fitted in a state in which the plunger 304 can reciprocate (moves left and right) in the cylinder 301, and the reciprocating position of the plunger can be controlled via a reciprocating drive mechanism 305 such as a servo mechanism. Is provided.
The position control with respect to the plunger 304 measures the amount of liquid substance sucked and transferred into the cylinder 301 in accordance with the plunger movement stroke length for moving the plunger in the right direction in the figure, as will be described later. Therefore, the amount of the liquid substance sucked and transferred into the cylinder 301 can be appropriately changed and selected by appropriately changing the movement stroke length of the plunger.
The tip shape of the sealing member 303 may be formed corresponding to the inner surface shape of the connecting portion 301a of the cylinder. When such a seal member is used, there is an advantage that the entire amount of the liquid substance sucked and transferred into the cylinder 301 can be transferred to the outside of the cylinder.

The quantitative liquid substance discharge section 400 is attached to the insert plate 700 so as to be detachable.
In the illustrated example, a nozzle structure for transferring and supplying a fixed amount of liquid substance measured by the measuring unit 300 to the container 401 (see FIG. 1 (1)) or to the next processing step side of the fixed amount of liquid substance. The case where it consists of is shown.
In addition, a quantitative liquid substance introduction port 402 is opened at one end (upper end) of the discharge unit 400. The introduction port 402 includes a lower communication port 703 formed in the cylindrical mounting member 701 and the lower communication port. Are provided so as to communicate with a connection hole 708 of the insert plate 700 formed so as to communicate with each other.
Further, the introduction port 402 of the discharge unit is connected to the discharge port 403 opened at the other end (lower end). Therefore, the quantitative liquid substance introduced from the introduction port 402 is immediately discharged from the discharge port 403. It is provided so as to be transported and supplied downward.

  The compressed air supply unit 500 includes a communication port 705 formed in the cylindrical mounting member 701, a connection hole 709 of the insert plate 700 formed so as to communicate with the communication port 705, and the connection hole 709. A case is shown in which a compressed air supply path 501 and the like are connected in communication with a compressed air tank (not shown).

  The operation based on the configuration of the above embodiment will be described below.

  First, referring to FIG. 3, the liquid substance storing step of storing the liquid substance 200 in the storage unit 100 described above, and the liquid substance 200 stored in the storage unit 100 via the passage switching unit 600 are transferred to the measuring unit 300. The liquid substance quantitative measurement process for transferring and measuring the quantity to measure the quantity will be described in detail.

In order to perform the liquid substance storing step, for example, as shown in FIG. 3 (1), the plunger 304 is moved to the left side in advance through the reciprocating drive mechanism 305 in the measuring unit 300 and the tip seal member 303 is moved. The cylinder 301 is moved to the left end.
In the state described above, the liquid substance storage step can be performed by supplying and filling the liquid substance 200 into the cylinder 101 of the storage unit 100.
In the figure, the liquid substance storing step is a small one that stores a small amount of the liquid substance 200 in the cylinder 101 or an amount necessary for performing multiple measurements. However, as described above, by constantly supplying and filling the liquid substance 200 into the cylinder 101, the metering of the liquid substance 200 can be continuously repeated.

Next, the branch valve member 602 is rotated through the rotation control mechanism 603 of the passage switching unit 600, and one side of the communication passage 601 in the branch valve member is shown in FIGS. 3 (1) and 3 (2). As shown, by connecting the cylindrical mounting member 701 fitted to the insert plate 700 to the upper communication port 702 and connecting the other side to the right lateral communication port 704 of the cylindrical mounting member, The cylinder 101 and the cylinder 301 of the measuring unit can be connected in communication.
The liquid substance quantitative measurement step is performed by moving the plunger 304 to the right side through a reciprocating drive mechanism 305 in the measuring unit 300 to a position of a predetermined stroke length.
That is, the liquid substance is quantified by measuring the volume of the liquid substance contained in the communication passage 601 in the branch valve member 602 and the communication port 704 in the cylindrical mounting member 701, and the plunger 304 in the cylinder 301 in the measuring unit 300. Can be determined by the sum total of the volume of the liquid substance sucked and transferred into the cylinder.
Further, since the volume of the liquid substance accommodated in the communication path 601 and the communication port 704 is constant, for example, it is only necessary to transfer the amount obtained by subtracting the constant amount from the desired amount into the cylinder 301. Therefore, the plunger movement position for this purpose may be set as the movement stroke length of the plunger 304.
As shown in FIG. 3 (2), the plunger 304 is moved by the previously set stroke length, and the liquid substance 200 in the cylinder 101 of the reservoir is sucked and transferred into the cylinder 301 of the measuring unit. The measured quantitative liquid substance 201 is accommodated in the communication path 601, the communication port 704, and the cylinder 301.

Next, with reference to FIG. 4, the quantitative liquid substance discharge process for transferring the quantitative liquid substance 201 that has undergone the quantitative measurement process to the discharge part 400 via the passage switching section 600 will be described in detail.
In FIG. 4 (1), the liquid substance 200 in the cylinder 101 is sucked and transferred into the cylinder 301 of the measuring section and measured into the communication path 601, the communication port 704 and the cylinder 301 by the above-described quantitative measurement process of the liquid substance. This shows a state in which the determined liquid material 201 is contained.
In this state, as in the previous step, the branch valve member 602 of the passage switching unit 600 is rotated, and one side of the communication passage 601 in the branch valve member is connected to the right lateral communication port 704 of the cylindrical mounting member 701. By connecting and connecting the other side to the lower communication port 703 of the cylindrical mounting member, the inside of the cylinder 301 of the measuring section and the discharge section 400 side of the quantitative liquid substance can be connected in communication. At this time, the connecting portion 101a at the lower end of the cylinder is reliably closed by the branch valve member 602.
As shown in FIG. 4 (2), the discharge step of the quantitative liquid substance is performed by moving the plunger 304 to the original position on the left side through the reciprocating drive mechanism 305 in the measuring unit 300.
That is, when the plunger 304 is moved back to the original left position, the fixed amount liquid substance 201 in the cylinder 301, the communication path 601 and the communication port 704 becomes the lower communication port 703 and the insert plate connection hole 708. The quantitative liquid substance introduced into the introduction port 402 is provided so as to be immediately transferred and supplied downward through the discharge port 403 at the lower end. The quantitative liquid substance 201 transferred through the discharge port 403 can be supplied to a container 401 (see FIG. 1 (1)) arranged below or to the next processing step (not shown) of the quantitative liquid substance. .
It should be noted that the tip seal member 303 of the plunger 304 shown in the figure is not fitted to the inner surface of the connection portion 301a of the cylinder 301 when the plunger 304 is moved back (see FIG. 2 (3)). . For this reason, a part of the quantitative liquid substance 201 may remain in the connection part 301a during the above-described discharge process. Therefore, when it is necessary to transfer the entire amount of the liquid substance in the cylinder 301 including the liquid substance remaining in the connection portion 301a to the discharge unit 400 side, for example, as described above, the tip of the seal member 303 By forming the shape corresponding to the inner surface shape of the connection part 301a of the cylinder 301, the tip end portion of the seal member 303 is fitted to the inner surface of the cylinder connection part 301a when the plunger 304 is moved back. The liquid material in the connection part may be positively discharged to the outside.
In addition, a part of the liquid material may remain in the right side communication port 704 as described above.For example, by inserting the tip of the seal member 303 into the communication port, This can be discharged to the outside.

Next, referring to FIG. 5, the compressed air 502 is supplied to the passage switching unit 600 and the discharge unit 400 described above, and the accumulated liquid substance in the passage switching unit 600 and the discharge unit 400 is discharged to the outside. The discharge process of the stored liquid substance will be described in detail.
5 (1) and 5 (2), after the above-described quantitative liquid substance discharge process is completed, the branch valve member 602 of the passage switching unit 600 is rotated and the branch is performed in the same manner as the previous process. By connecting one side of the communication path 601 in the valve member to the lower communication port 703 of the cylindrical mounting member 701 and connecting the other side to the left side communication port 705 of the cylindrical mounting member, The state where the discharge part 400 side and the compressed air supply part 500 side are connected in communication is shown. At this time, the connecting portions 101a and 301a of both cylinders are surely closed by the branch valve member 602.
As shown in FIG. 5 (1) and FIG. 5 (2), the stagnant liquid substance discharging step is to supply compressed air 502 into the connection hole 709 of the insert plate 700 through the compressed air supply path 501. Is done by.
That is, since the discharge part 400 side and the compressed air supply part 500 side are connected in communication, and the connection parts 101a and 301a of both cylinders are securely closed by the branch valve member 602, this state Then, as shown in FIG. 5 (2), by supplying compressed air 502 from a compressed air tank (not shown) into the connecting hole 709 of the insert plate, the passage switching portion (communication passage 601) and the lower communication opening 703 are supplied. The staying liquid substance 202 in the connection hole 708 and the discharge part (the flow path from the introduction port 402 to the discharge port 403) can be discharged to the outside.
Through the discharge process of the stagnant liquid material, not only can the fixed amount of the liquid material be efficiently supplied into the lower container 401 or the next processing step side, but also from the passage switching unit through which the liquid material flows, the discharge unit Can be efficiently cleaned, so that, for example, the so-called liquid leakage phenomenon in which the accumulated liquid substance leaks out from the discharge portion can be prevented. The occurrence of problems such as mixing with the liquid material to be weighed can be avoided.

In addition, an appropriate liquid material pressurizing and transferring means (not shown) for pressurizing and transferring the liquid substance 200 stored in the storage part to the measuring part 300 side is arranged in the liquid substance storage part 100 described above. It may be provided and configured. With this configuration, the liquid substance 200 that is transferred to the measuring unit 300 side in a state where the liquid substance 200 stored in the storage unit 100 is pressurized between the liquid substance storage step and the liquid substance quantitative measurement step described above. You may make it perform the pressurization transfer process of.
As described above, the action of transferring the liquid substance 200 in the reservoir cylinder 101 into the measuring section cylinder 301 is due to the suction force based on the negative pressure generated when the plunger 304 moves in the measuring section cylinder 301. However, the combined use of the above-described pressure transfer means for the liquid substance can efficiently assist the transfer action of the liquid substance 200 to the measuring section cylinder 301 side.
Specifically, for example, a plunger for pressurizing the liquid substance is closely fitted in the reservoir cylinder 101, and the pressurizing plunger is made to follow the suction transfer action by the measuring unit plunger 304, or the suction plunger What is necessary is just to set and comprise so that the liquid substance 200 in the storage part cylinder 101 may be pressurized, cooperating with a transfer action.
When such a pressure transfer means is provided, the liquid substance can be efficiently transferred to the metering unit cylinder 301 side. For example, a liquid substance having a high viscosity or low fluidity is metered and supplied. Even in this case, this can be dealt with suitably.

Further, the liquid material to be weighed in the above-described embodiments may be a liquid resin material used for sealing molding of electronic parts, for example.
Similarly, the liquid material to be weighed in the above-described embodiments may be a liquid thermosetting resin material used for sealing molding of electronic parts.

Further, in the above-described embodiments, a liquid material temperature management step for cooling or heating the liquid material may be performed according to the properties of the liquid material to be measured.
That is, in the whole or a part of the liquid substance storage process, the liquid substance quantitative measurement process, the quantitative liquid substance discharge process and the stagnant liquid substance discharge process, for example, the flow of the liquid substance to be measured In order to improve the property, a step of heating the liquid substance to an appropriate temperature may be performed.
When the liquid material to be weighed is a liquid material that can be cured at room temperature, such as a liquid thermosetting resin material, in all or some of the above steps, A step of cooling the liquid substance to an appropriate temperature may be performed.
The temperature control process for the liquid material is performed in an appropriate liquid state on all or a part of the liquid material reservoir, the liquid material metering unit, the metered liquid material discharge unit, and the compressed air supply unit. It can be easily carried out by providing a substance cooling mechanism or a heating mechanism thereof.

Further, the cylindrical mounting member 701 in the insert plate 700 of the above-described embodiment can be omitted by closely fitting and mounting the branch valve member 602 in the passage switching unit 600 to the insert plate 700.
In this case, there is an advantage that overall components can be reduced and the configuration can be simplified.

  In addition, a series of liquid substance storage process, liquid substance quantitative measurement process, quantitative liquid substance discharge process, stagnant liquid substance discharge process, plunger movement control and branch valve member rotation control in the above-described embodiments. The structure which automates this process based on the instruction | indication from the preset control part is employable.

  Further, both cylinders (101, 301) in the above-described embodiment are made of resin, but the material of both cylinders is, for example, made of metal or glass having heat resistance and durability. There is no problem.

  The present invention is not limited to the above-described embodiments, and can be arbitrarily changed or selected as necessary within the scope not departing from the gist of the present invention. .

  INDUSTRIAL APPLICABILITY The present invention can be used in combination with a resin-sealing molding apparatus for a desktop electronic component having a reduced apparatus shape and weight.

1 schematically shows the overall shape of a liquid substance metering device according to the present invention, FIG. 1 (1) is a front view thereof, and FIG. 1 (2) is a plan view thereof. Fig. 2 (1) is a partially cut-away vertical front view taken along line BB in Fig. 1 (2), and Fig. 2 (2) is an enlarged view of the passage switching unit. FIG. 2 (3) is a partially cutaway longitudinal front view showing an enlarged liquid substance measuring section. FIG. 3 (1) shows the liquid substance storage process, and FIG. 3 (2) shows the liquid substance quantitative measurement process. FIG. 4 (1) and FIG. 4 (2) both show a discharge process of a quantitative liquid substance, in a longitudinal sectional front view of the liquid substance metering device corresponding to FIG. FIG. 5 (1) and FIG. 5 (2) each show a discharge process of the stagnant liquid substance, in a longitudinal front view of the liquid substance metering device corresponding to FIG. It is a partial notch longitudinal front view which shows the principal part of the conventional metering supply apparatus of a liquid substance.

Explanation of symbols

A Liquid material metering device
100 Reservoir
101 Plastic cylinder
101a Tip connection part
102 Cylinder guide
103 Fixing member
104 Containment tank
200 liquid substances
201 Quantitative liquid substances
202 Stagnant liquid material
300 Weighing unit
301 Plastic cylinder
301a Connection site
302 Fixing member
303 Seal member
304 Plunger
305 Reciprocating drive mechanism
400 Discharge unit
401 containers
402 Inlet
403 Discharge port
500 Compressed air supply section
501 Air supply route
502 Compressed air
600 Passage switching part
601 communication path
602 Branch valve member
603 Rotation control mechanism
700 Insert plate
701 Cylindrical mounting member
702 Upper communication port
703 Lower communication port
704 Right side communication port
705 left side communication port
706 Connection hole
707 Mounting hole
708 connection hole
709 connection hole

Claims (11)

A method for measuring and supplying a liquid substance to measure a fixed amount by measuring a liquid substance and supplying the fixed liquid substance to a predetermined location,
The liquid substance is stored in the storage part, and the liquid substance is stored.
Next, the liquid substance stored in the storage part is transferred to the measuring part via the passage switching part, and the liquid substance is quantitatively measured to measure the quantity by measuring it.
Next, through the passage switching unit, perform a quantitative liquid substance discharge step of transferring the quantitative liquid material passed through the quantitative measurement step to the discharge unit,
Next, a stagnation liquid material discharging step is performed in which compressed air is supplied to the passage switching unit and the discharge unit to discharge the accumulated liquid material in the passage switching unit and the discharge unit to the outside. Method for metering substances.   Between the liquid substance storage step and the liquid substance quantitative measurement step described above, the liquid substance pressure transfer step of transferring the liquid substance stored in the storage portion to the metering portion side in a pressurized state The method for metering and supplying a liquid substance according to claim 1.   A liquid that cools or heats the liquid substance in all or a part of the liquid substance storage process, the liquid substance quantitative measurement process, the quantitative liquid substance discharge process, and the stagnant liquid substance discharge process. The method for measuring and supplying a liquid substance according to claim 1, wherein a temperature control step of the substance is performed.   The method for metering and supplying a liquid substance according to claim 1, 2, or 3, wherein the liquid substance is a liquid resin material used for sealing molding of electronic parts.   The metering of the liquid substance according to claim 1, 2, or 3, wherein the liquid substance is a liquid thermosetting resin material used for sealing molding of an electronic component. Supply method. A liquid substance metering device for measuring a liquid substance and measuring the quantitative amount, and supplying the quantitative liquid substance to a predetermined location,
A liquid material reservoir for storing liquid material;
A liquid substance measuring unit for measuring the liquid substance stored in the storage unit and measuring the quantity;
A quantitative liquid substance discharging section for transferring the liquid substance measured by the measuring section to a supply destination;
A compressed air supply unit to the discharge unit;
In order to connect the storage part of the liquid substance and the measurement part of the liquid substance, the measurement part of the liquid substance and the discharge part of the quantitative liquid substance, or the discharge part of the quantitative liquid substance and the compressed air supply part A liquid substance metering device, comprising: a passage switching unit that forms a communication passage of   2. The liquid material pressurizing and transferring means for pressurizing and transferring the liquid material stored in the storage portion to the measuring portion side is disposed in the liquid material storage portion. 7. A liquid material metering device according to 6.   The liquid material metering section includes a cylinder connected to the communication path of the path switching section, a plunger closely fitted in the cylinder, and a reciprocating drive mechanism for reciprocatingly driving the plunger. The liquid substance metering device according to claim 6, wherein the liquid material metering device is configured.   9. The liquid material metered in the liquid material metering unit is set based on a reciprocating stroke length of a plunger closely fitted in the cylinder. Liquid material metering device.   The temperature of the liquid material that cools or heats the liquid material in all or a part of the liquid material reservoir, the liquid material metering unit, the metered liquid material discharge unit, and the compressed air supply unit. 7. The liquid material metering device according to claim 6, wherein a management means is arranged.   7. The liquid material storage device according to claim 6, wherein the liquid material storage unit, the liquid material measuring unit, and the quantitative liquid material discharge unit are configured to be detachable from the apparatus main body. Metering device.

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