JPH09178540A - Metering device for liquid material and production of liquid material employing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize accurate measurement by disposing a plurality of metering units and rolling stoppers between a plate for mounting a tank in the way and an elevating/lowering plate thereby stopping the shaking of liquid material in a tank. SOLUTION: When a tank 4 secured to a frame 5 being conveyed on a chain conveyor 2 reaches a metering position (upper position of an elevating/lowering plate 11), the tank 4 abuts against a stopper 38 to stop at a stopping position. It is then mounted on a mounting plate 10 and elevated, by means of a driving cylinder 31, up to a predetermined position where a predetermined solvent or a paint material of resin, for example, is fed through a supply port 6. Existing liquid material in the tank 4 is shaken temporarily when it is stopped forcibly by means of the stopper 38 or elevated by means of the cylinder 31, but it is settled quickly by means of shaking stopper 17 disposed between the mounting plate 10 and elevating/lowering plate 11. Consequently, the liquid material filling the tank 4 can be metered efficiently by means of a load cell 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid measuring device used in factories for manufacturing liquids such as paints.

[0002]

2. Description of the Related Art Conventionally, in a factory that manufactures liquid materials such as paints, in order to be able to manufacture a wide variety of paints in a narrow floor space, there is provided a conveyance path in which unmanned guided vehicles run, In the transport path, for example, a storage station,
By providing each station such as a semi-finished product preparation station, a stirring station, and a washing station, and an automated guided vehicle passing through each of these stations, the raw material of the paint is stored in the tank mounted on the automated guided vehicle. Some are configured such that they can be filled or agitated to ultimately produce the paint. For example, in the paint manufacturing apparatus disclosed in Japanese Patent Publication No. 5-29664, a tank is received from a storage station by an automatic guided vehicle, and the received tank is sent by the automatic guided vehicle to a primary charging station or a second charging station.
At the next charging station, the raw material of the paint is filled in the tank, and then it is transferred to the weighing device and weighed, and then it is transferred to the charging line and the tank is transferred by the chain conveyor while being installed on the chain conveyor. There is disclosed a configuration in which the raw material is supplied into the tank through a plurality of the provided valves (or, the raw material is directly conveyed from the storage station to the charging line), a configuration in which the raw material in the tank is agitated and mixed in the agitation station. ing.

[0003]

By the way, in the above paint manufacturing apparatus, for example, a plurality of liquid raw material supply ports are provided on a chain conveyor for transferring the tank, and a predetermined amount of liquid raw material supply ports are provided from these liquid raw material supply ports. The liquid raw material is filled in the tank, but in order to accurately measure the weight of the liquid raw material filled in the tank, the weight should be accurate after traveling to the weighing device with an automatic guided vehicle and weighing. For example, if it is not correct, it is transferred to the next step again on the chain conveyor.

However, as described above, it is extremely complicated to weigh the liquid raw material at another place after the liquid raw material is filled, and it is not possible to quickly manufacture the coating material. Therefore, it is possible to measure the liquid raw material in the tank on the chain conveyor, but when the tank being transferred by the chain conveyor is stopped, the liquid raw material inside is oscillating, so it is possible to measure accurately. Can not do it.

Further, in the stirring station, the tank is transferred from the automatic guided vehicle to the pedestal, and the blade which is driven to rotate by the stirring device is inserted into the tank and is stirred. The liquid raw material (while being stirred) is transferred from the above tank to a grain mill through a flexible hose to reduce the particle size of the raw material, and then charged into another tank. At this time, if all of the liquid raw material in the tank is discharged, the liquid raw material will be extremely difficult to perform the cleaning work by being attached to the inner wall of the automatic valve or the flexible tube to be inserted,
The residual liquid amount of the liquid raw material is provided below the base on which the tank fixing frame, on which the tank is fixed, is placed, and the measuring device measures the residual liquid amount. The method of closing the valve is adopted. The base on which the tank fixing frame is placed needs to have a flexible tube connected to the grain mill from the lower end of the tank fixed to the tank fixing frame.
In addition, a large opening must be formed below the tank, and also from the viewpoint of the cost of making the base, an H-shaped rope or the like is welded to form a rectangular shape. The weighing device is installed at each corner of the base to perform weighing.

However, as described above, when the weighing devices are provided at four places, the values of the respective weighing devices are delicately different from each other and accurate measurement cannot be performed.

Therefore, the present invention has been proposed to solve the problems of the above-described conventional weighing device, and an object thereof is to provide a weighing device capable of performing accurate weighing. is there.

[0008]

The present invention has been proposed in order to achieve the above object, and the first invention (the invention according to claim 1) is in a tank conveyed by a conveying device. In the measuring device for the liquid material filled in, a mounting plate on which the tank transported by the transport device is mounted during transportation, and a lifting plate fixed below the mounting plate, An elevating and lowering drive device for elevating and lowering the elevating plate, one or more metering device main bodies arranged between the placing plate and the elevating plate, one end of which is fixed to the placing plate and the other end is It is characterized by comprising a plurality of swing stoppers fixed to the bottom plate.

The second invention (the invention described in claim 2)
The mounting plate has a rectangular shape, and the rocking stopper having one end fixed to the mounting plate is fixed to positions corresponding to the four sides of the mounting plate. To do.

The third invention (the invention according to claim 3)
The swing stop device includes one piston portion having one end fixed to the back surface of the mounting plate, the other piston portion having one end fixed to the upper surface of the lift plate, and the one piston portion. The other end side of which includes one cylinder part in which gas is housed in a sealed state, and the other end side of the other piston part is the other cylinder part in which gas is housed in a sealed state, It is characterized in that one and the other cylinder are connected.

The fourth invention (the invention according to claim 4)
Is configured such that one end side of a mounting member on which a tank filled with a liquid material is mounted is rotatable via a support shaft, and the left and right sides of the other end side respectively measure the weight of the tank. The measuring instrument main body is provided.

A fifth invention (an invention according to claim 5)
Is a base having four columns and at least a working space formed inside, and first and second weighing device main bodies arranged on the left and right sides of the front end of the base. And a horizontal member formed by integrally molding the left and right ends on the first and second weighing device main bodies, and a horizontal member formed on the horizontal member and filled with a liquid material inside. A tank mounting member on which a tank fixing frame body having the tank fixed inside is mounted, and the tank mounting member is slightly rotated via a support shaft on the rear end side of the base. It is characterized in that it is movably connected.

A sixth invention (the invention according to claim 6)
The first tank mounting members are parallel to each other.
And a second roller conveyor.

A seventh aspect of the present invention is an apparatus for producing a liquid material, wherein any one of the weighing apparatuses according to the first to third aspects and the weighing apparatus according to the fourth to sixth aspects of the invention are provided. , Is provided.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of each weighing device according to the present invention will be described in detail below with reference to the drawings.

First, a weighing device according to an embodiment of the first to third inventions (hereinafter referred to as a first weighing device) will be described. The first metering device 1 constitutes a part of a paint manufacturing device provided in a manufacturing factory for manufacturing a liquid paint. In the above manufacturing plant,
A transport path is formed on the floor surface, and stations are provided along the transport path for each process required for manufacturing paint. An unmanned guided vehicle travels on the traveling path, and a tank in which a liquid resin or pigment, which is a raw material of a paint, is filled inside the unmanned guided vehicle is a tank fixing frame body. It is placed in the state fixed to
Various types of processing are performed in each of the above stations. Therefore,
The schematic diagram shown in FIG. 1 shows a preparation line provided from one conveyance path formed in parallel to the other conveyance path, and a tank receiving portion of one conveyance path (not shown) conveys the other conveyance path. A chain conveyor 2 is provided across the tank delivery section of the road, and a tank fixing frame 5 having a tank 4 fixed therein is placed on the chain conveyor 2. The tank 4 has an opening / closing valve 4a formed on the lower end side. Further, the tank fixing frame 5 is formed by fixing a support frame 5b to a square frame-shaped bottom frame 5a, and an opening / closing mechanism for opening / closing the opening / closing valve 4a of the tank 4 on a side portion. Are formed. This opening / closing mechanism is, as shown in FIG. 7, a rotation shaft 5c rotatably supported by a support frame 5b and extending in the horizontal direction, and a tank 4 formed substantially in the center of the rotation shaft 5c. The bevel gear 5d meshed with the on-off valve 4a and the cross-shaped pin 5e fixed to both ends of the rotary shaft 5c.

A plurality of raw material supply ports 6 (only one position is shown in FIG. 1) are formed above the chain conveyor 2. These raw material supply ports 6 are connected by a pipe 6c to a liquid raw material supply source of various solvents, resins, etc. via a two-stage closing type open / close valve 6a driven by an air cylinder (not shown) and a pulse transmission type flow meter 6b. Has been done. Further, below the raw material supply port 6, a first weighing device 1 constituting the present invention is provided. The first weighing device 1 has a mounting plate 1 on which a tank fixing frame 5 conveyed by the chain conveyor 2 is mounted.
0, and an elevating plate 1 fixed below the mounting plate 10.
1 is provided. The mounting plate 10 described above is a plate body formed in a square shape in the present example, while the lifting plate 11 is used.
The plane shape of is shaped like a rectangle. As shown in FIG. 2, cushioning members 12 are fixed to the lower surface of the placing plate 10 in the vicinity of the respective corners, and the cushioning members 12 are the lower ends of the respective cushioning members 12, Lifting plate 11
A load cell 13 as a measuring device main body is fixed to the upper surface of the.

Further, as shown in FIG. 2, one supporting metal piece 14 formed in a U shape is fixed to the lower surface of the mounting plate 10 through a bolt (not shown). On the upper surface of 11, the other support metal fitting 15, which is also U-shaped, is fixed via bolts 16 and 16. The one support metal fitting 14 is fixed to the center of each side of the square mounting plate 10 as shown in FIG. The one supporting metal piece 14 and the other supporting metal piece 15 are connected to each other by a swing stop 17. As shown in FIG. 2, these rocking preventive members 17 are provided on the one side of the support fittings 14
One piston portion 18 whose one end is fixed to the other, one cylinder portion 19 where the other end of this one piston portion 18 is inserted, and the other one whose one end is fixed to the other supporting metal fitting 15. The piston part 20, the other cylinder part 21 in which the other end of the other piston part 20 is inserted, and the one and the other rings 22, which are attached to the one and the other cylinder parts 19 and 21, 23
And a connecting member 24 formed by connecting the one and the other rings 22 and 23. In addition, an insertion hole (reference numeral is omitted) is formed in the one and the other support metal fittings 14 and 15, and one end side outer circumferences of the one and the other piston portions 18 and 20 inserted into the insertion hole are formed. Are screwed with screws 18a and 20a, and nuts 18b and 20b are screwed onto the screws 18a and 20a, respectively. In addition, insertion holes (reference numerals are omitted) are formed at the tip ends of the one and the other cylinder portions 19 and 20, respectively.
The one or the other ring 22, 23 is inserted through these insertion holes. In addition, the inside of the one and the other cylinder portions 19 and 20 is sealed with gas at a predetermined pressure, and the one or the other piston portion 18 and 20 and the one or the other cylinder portion 19 and 20 are extended. If a force acts in the direction of the arrow, this force is buffered.

The first and second link members 26 and 27 are provided below the elevating plate 11 thus constructed.
The base plate 28 whose lower surface is installed on the floor is attached via the. The first link member 26 has a mounting plate 11a whose one end hangs down from the lower surface of the elevating plate 11.
Rotatably attached to the shaft via a support shaft 26a,
The other end is rotatably attached to one mounting plate 28a, which is provided so as to project from the upper surface of the pedestal plate 28, via a support shaft 26b. The second link member 27 has one end rotatably attached to a mounting plate 11b that hangs from the lower surface of the elevating plate 11 via a support shaft 27a, and the other end is the pedestal plate 28. Is attached to the mounting plate 28b of the tank, which is disposed on the upper surface of the first link member 26 and is slidable on the other end side of the first link member 26, via a support shaft 27b so as to be rotatable. The first link member 26 has a second
An elongated hole 26c is formed through which a support shaft 30 formed by rotatably connecting the link member 27 and the first link member 26 is inserted. A mounting plate 28c for fixing the cylinder is fixed to the upper surface of the pedestal plate 28.
c is a hydraulic cylinder 3 that drives the lifting plate 11 up and down.
The base end of 1 is rotatably attached. The tip end of the cylinder rod 31a of the hydraulic cylinder 31 is inserted into the lower end side of the second link member 27 and outside the slide member 32 slidable in the longitudinal direction of the second link member 27. It is rotatably attached to the side surface via a support shaft 33. Incidentally, this hydraulic cylinder 31
Is configured to be driven by a sensor described later when the tank fixing frame body 5 reaches a predetermined position. Therefore, when the hydraulic cylinder 31 is driven, the other end side of the second link member 27 is moved to the other end side of the first link member 26 to raise and lower the elevator plate 11. The lifting plate 11 is lowered by driving the hydraulic cylinder 31.

Further, inside the chain conveyor 2 and slightly downstream of the installation position of the first weighing device 1, the tank fixing frame 5 conveyed by the chain conveyor 2 is stopped. A stopping device 35 is provided for causing the stop. The stop device 35 is driven by a sensor (not shown) that detects that the tank fixing frame 5 has reached above the elevating plate 11 that constitutes the first weighing device 1 by the chain conveyor 2. A rotary shaft 36 that is rotated by a motor (not shown), and the rotary shaft 3
6, a support plate 37 that supports both ends of
The stopper 38, which is fixed to the bottom frame 5a of the tank fixing frame body 5 by rotating about 90 degrees.
It is composed of

Therefore, the first device constructed as described above
In the weighing device 1, the tank 4 fixed to the tank fixing frame 5 is conveyed to the downstream side by the driving force of the chain conveyor 2 and is moved from the position shown in FIG. 1 to the position shown in FIG. (Up to the position 11), the stop device 35 is driven via the above sensor, and the stopper 38 is rotated by about 90 degrees as shown by the chain double-dashed line in FIG.
The stopper 38 and the bottom frame 5a of the tank fixing frame body 5 are engaged with each other as shown in FIG. 4, so that the tank 4 and the like which have been traveling by the chain conveyor 2 until then are stopped. And the hydraulic cylinder 31 is driven, the tank 4 and the like are
As shown in. Then, when the tank 4 is lifted to a predetermined position, the raw material of the predetermined paint such as the solvent and the resin is filled from the supply port 6 through the flow meter 6b and the opening / closing valve 6a. At this time, the liquid raw material already filled in the tank 4 is forcibly stopped by the stopper 38 and the hydraulic cylinder 31
As a result of being lifted by the drive of, the rocking stop members 17 rapidly stop the rocking, so that the weight of the liquid raw material filled in the tank 4 is very efficiently. Weighed. Therefore, unlike the conventional case, it is not necessary to measure each time after the predetermined liquid raw material is filled with a weighing device provided at another place. As described above, the predetermined liquid raw material is filled in the tank 4,
When it is confirmed by the first metering device 1 that the predetermined liquid raw material is filled, the rotation shaft 36 is rotated about 90 degrees by driving the motor again, and as shown in FIG. The stopper 38 returns to the original state again, and at the same time,
The lifting plate 1 is driven by driving the hydraulic cylinder 31.
1 is lowered and returns to its original position.

While the tank 4 is fixed to the tank fixing frame 5, the chain conveyor 2 drives the tank 4 to convey it to a tank delivery section (not shown) and to the unmanned guided vehicle. Then, the unmanned guided vehicle travels along the traveling path and is transferred to a stirring station (not shown) which is a point where the next process is performed. As shown in FIG. 6, the unmanned guided vehicle 50 has two roller conveyors 50c mounted on a body 50b on which wheels 50a are arranged on the lower side, and a tank fixed to which the tank 4 is fixed. The frame body 5 is placed on these roller conveyors 50c. The unmanned guided vehicle 50 is provided with a slide driving member (not shown), and the slide driving member transfers the unmanned guided vehicle 50 to a weighing device 51 constituting a stirring station to be described later.

In this stirring station, a stirring device 5 which can be driven up and down by a weighing device 51 and a lifting device (not shown) provided above the weighing device 51.
2 is roughly constituted. This weighing device (hereinafter, referred to as a second weighing device) 51 is related to the embodiments of the fourth to sixth inventions, and as shown in FIG. First and second stanchions 53, 5 which are installed along the road R, and whose lower ends are erected on the floor surface F and which face the running path R direction.
4 (see FIG. 7), a third strut 55 (see FIG. 6) standing upright in parallel with the first strut 53, and a fourth strut (not shown) parallel to the second strut 54. The support column 56 includes a support column and a lower surface mounted and fixed to the upper ends of the first to fourth support columns 53, 54, 55, and an inner side of the support frame 56 having a square opening which is a working space for an operator. The base 57 is a component.

Then, as shown in FIG. 7, a first load cell 60 as a main body of the weighing machine, which constitutes the present invention, is fixed on the upper surface of the base 57 and above the first support column 53. A second load cell 61 is attached above the second support column 54. Then, on the upper surfaces of the first load cell 60 and the second load cell 61,
A horizontal member 62, which is parallel to the traveling direction of the automatic guided vehicle 50, is mounted and fixed. This first supporting frame 6
2 is integrally formed of a metal material such as iron. The upper surfaces of the left and right ends of the first supporting frame 62 are
Mounting plates 63 and 64 each having a rectangular flat surface are formed on the front surface and the lower surface, respectively, and the upper surfaces of these mounting plates 63 and 64 are parallel to each other.
The front end sides of the second roller conveyors 65 and 66 are placed and fixed. These first and second roller conveyors 6
Reference numerals 5 and 66 denote rollable rollers 65a and 66a, respectively.
6 are arranged on the lower surface of the rear end side of the respective roller conveyors 65, 66, as shown in FIG. 6, depending on the hanging piece 65b (the hanging piece formed on the second roller conveyor 66). Are not shown). On the other hand, on the upper surface of the base 57, the third support 55 and the fourth support 55
Standing pieces 67 are respectively erected above the columns of the supporting pillars 67, and these standing pieces 67 and the hanging pieces 65b are connected to the support shaft 6
It is rotatably connected via 8. In addition, the first
7 and the side of the second roller conveyors 65, 66.
As shown in, guide members 69 and 70 for guiding the left and right sides of the tank fixing frame 5 placed on the roller conveyors 65 and 66 are formed.

Therefore, the automated guided vehicle 50 is shown in FIG.
As shown in FIG. 4, when it is stopped in front of the second weighing device 51, a slide drive device (not shown) formed on the automatic guided vehicle 50 causes the roller conveyor that has been arranged on the automated guided vehicle 50 until then. The tank fixing frame 5 placed on 50c is slid on the first and second roller conveyors 65 and 66 formed on the second weighing device 51 together with the tank 4 fixed inside. To be Then, as shown in FIG. 8, when it is placed on the second weighing device 51, a worker manually puts powders such as pigments and other raw materials of necessary paints as necessary, and thereafter, The stirrer 52 is attached to the
As shown in (3), the liquid material in the tank 4 is lowered and mixed by stirring. Then, when the stirring work is completed, the stirring device 52 is raised, and the operator attaches the flexible tube 71 to the opening / closing valve 4a provided in the tank 4 as shown in FIG. The flexible tube 71 is connected to a grain mill (not shown). When the on-off valve 4a and the flexible tube 71 are attached in this way, the operator opens and closes the on-off valve 4a by rotating the cross-shaped pin 5e provided on the tank fixing frame 5. At the same time as opening, an automatic valve (not shown) is driven to transfer the liquid raw material in the tank 4 to a Glen mill to make the particle diameter of the liquid raw material fine, and then to fill the other tank. In addition, the remaining amount of the liquid raw material in the tank 4 that gradually decreases is determined by the first and second liquid meter main bodies.
The load cells 60 and 61 of the
When the amount of the liquid raw material therein reaches a predetermined amount, the automatic valve is closed. In this case, the second weighing device 5
1 indicates that the weight of the tank 4 placed on the first and second roller conveyors 65 and 66 together with the tank fixing frame 5 is
First and second load cells 60, 6 as a main body of the measuring instrument
Since the first and second roller conveyors 65 and 66 are rotatable via the support shaft 68 so as to cover the portion where 1 is provided, accurate weighing can be performed.

In the above description of the embodiments, the present invention has been described as a measuring device for measuring the raw material of the coating material as the liquid raw material or as an apparatus for producing the coating material. However, the present invention measures or manufactures the liquid raw material. If it does, it may be applied to other things such as food.

[0027]

As is apparent from the above description of the embodiments of the present invention, the measuring device according to the first to third inventions and the measuring device according to the fourth to sixth inventions have The liquid raw material filled in can be accurately measured. In particular, according to the weighing devices of the first to third inventions, the liquid raw material carried by the carrying device can be accurately weighed because the rocking stop member prevents the liquid material from rocking rapidly. Not only can we do it, but we can weigh quickly. Further, even in the cases of the fourth to sixth inventions, accurate weighing can be performed, and particularly, in the weighing device according to the fifth invention, it is integrally formed on each weighing device main body. Since the tank mounting member is provided on the horizontal member, more accurate weighing can be performed,
Further, according to the weighing device of the sixth aspect of the present invention, since the mounting member of the tank is constituted by the first and second roller conveyors which are parallel to each other, the case of transferring to the weighing device and the case of It can be carried out very easily even when it is transferred from the weighing device to another place such as an automatic guided vehicle. Further, according to the liquid material manufacturing apparatus using each of the above-described measuring devices, it is not necessary to measure the liquid material each time the raw material is filled, so that the finished product can be manufactured promptly.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a first weighing device, showing a state in which a tank fixing frame having a tank fixed inside is conveyed by a chain conveyor. .

FIG. 2 is an enlarged perspective view of one of the four rocking stop devices, which is enlarged.

FIG. 3 is a plan view showing a state in which four swing stop members are formed between a mounting plate and an elevating plate.

FIG. 4 is a side view schematically showing a time point when the tank fixing frame body to which the tank is fixed reaches above the first weighing device from the state shown in FIG.

FIG. 5 is a side view schematically showing a state where the tank fixing frame body to which the tank is fixed is lifted by the first weighing device.

FIG. 6 is a side view schematically showing the time when the automatic guided vehicle reaches the grounding position of the second weighing device.

FIG. 7 is a front view schematically showing a state in which a tank fixing frame body in which a tank is fixed is placed on the second weighing device.

FIG. 8 is a side view schematically showing a state in which a tank fixing frame body in which a tank is fixed is placed on the second weighing device.

9 is a front view schematically showing a state in which a stirring device is inserted into the tank and a flexible tube is attached to the tank from the state shown in FIG. 7.

[Explanation of symbols]

 1 1st weighing device 2 Chain conveyor 4 Tank 5 Tank fixing frame 10 Mounting plate 11 Elevating plate 13 Load cell 17 Swing stop tool 18 One piston part 19 One cylinder part 20 The other piston part 21 The other cylinder Part 26 1st link member 27 2nd link member 31 Hydraulic cylinder 51 2nd weighing device 53 1st support | pillar 54 2nd support | pillar 55 3rd support | pillar 60 Base 60 Load cell 61 Load cell 62 Horizontal member 65th 1 roller conveyor 66 2nd roller conveyor 68 Spindle

Claims (7)

[Claims] 1. A measuring device for a liquid material filled in a tank conveyed by a conveying device, comprising: a placing plate on which the tank conveyed by the conveying device is placed during conveyance; An elevating plate fixed below the mounting plate, an elevating and lowering drive device for elevating the elevating plate, and one or two or more weighing device main bodies arranged between the mounting plate and the elevating plate. And a plurality of swing stoppers each having one end fixed to the mounting plate and the other end fixed to the bottom plate, the liquid measuring device. 2. The mounting plate has a rectangular shape, and the rocking stoppers having one end fixed to the mounting plate are fixed to positions corresponding to the four sides of the mounting plate. The liquid body measuring apparatus according to claim 1, wherein: 3. The swing stopper comprises one piston portion having one end fixed to the back surface of the mounting plate, the other piston portion having one end fixed to the upper surface of the elevating plate, and One cylinder part in which the other end side of the piston part of the gas is housed in a sealed state inside, and the other cylinder part of the other end side of the other piston part in which the gas is housed in a sealed state inside, 3. The liquid material measuring apparatus according to claim 1 or 2, further comprising: one cylinder and the other cylinder connected to each other. 4. A mounting member, on which a tank filled with a liquid material is mounted, is rotatable at one end side via a support shaft, and the left and right sides of the other end side are respectively provided with the tank of the tank. A measuring device for a liquid material, comprising a measuring device main body for measuring the weight. 5. A base having four pillars and at least a working space formed inside, and first and second bases provided on the left and right sides of the front end on the upper surface of the base.
Of the measuring instrument main body, a horizontal member formed by integrally molding the left and right ends on the first and second measuring device main bodies, and a liquid material formed inside the horizontal member. A tank mounting member on which a tank fixing frame body in which the tank filled with is fixed is mounted,
The liquid placing apparatus is characterized in that the tank placing member is connected to the rear end side of the base so as to be slightly rotatable via a support shaft. 6. The liquid material measuring apparatus according to claim 4, wherein the tank mounting member is composed of first and second roller conveyors that are parallel to each other. 7. An apparatus for producing a liquid material, comprising: the weighing device according to any one of claims 1 to 3; and the weighing device according to any one of claims 4 to 6.