JP3484486B2 - Inverting dosing meter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention locates a reversing machine on a frame of a weighing machine, rotates a container such as a drum can held by the reversing machine, and reverses it to the opposite side of the reversing machine.
The present invention relates to an inversion metering device capable of discharging contents and knowing the total weight of containers and contents at that time, the weight of discharged substances, the weight of contents remaining in the container, or the like.

[0002]

2. Description of the Related Art Conventionally, an example of a device that performs the above-mentioned operation is formed as shown in FIG.
In the figure, 53 is a platform scale, and 54 is a platform table. A reversing machine 56 is fixedly provided on the platform weighing table 54 with bolts 57. Reference numeral 58 denotes a column of the reversing machine 56, and a drum can as an example of the container 59 is held by the column 58 on the column 58. The holding device 60 is also attached to the column 58 by an arrow A60.
In the direction, that is, in the direction of the vertical surface, it is rotatably formed so as to be inverted in the direction opposite to the column 58. Reference numeral 61 indicates a rotation axis. A drive device for reversing the holding device 60 together with the container 59 is not shown. Reference numeral 62 denotes a charging port for charging the contents in the container 59. When the contents of the container 59 are charged into the charging port 62, the value indicated by the platform scale 53 decreases as the charging amount increases, so that the charging amount can be known every moment.

[0003]

However, the above-mentioned conventional reversing input metering device has the following drawbacks.
As shown in FIG. 7, the container 59 is inverted, and when the contents are charged into the charging port 62, the center of gravity 63 of the container 59 is set to the platform scale 5.
There is a case that it goes out of 3, and in such a case the platform scale 5
No. 3 cannot be weighed correctly. The present invention has been made to solve such a problem, and an object thereof is to invert the container when the reversing device for holding the container is positioned on the weighing machine, and Even if the center of gravity of the container goes out of the weighing machine, the weighing machine can accurately measure the input amount of the contents, the remaining amount of the contents, or the weight of the container containing the contents, etc. It is to provide a dosing and weighing device.

[0004]

The present invention which achieves the above-mentioned object will be described by forming a link mechanism 3 on a weighing machine frame 1 which can be moved in parallel by axial attachment of connecting rods 2, 2. Reversing machine 4 provided; Retaining device 6 provided on the reversing machine 4 so as to be reversible for holding the container 5; Weight detection device 7 provided between the weighing frame 1 and the reversing machine 4, or the same. 7a; and a reverse charging metering device.

The reversing throw-in weighing device of the present invention is provided on the weighing machine frame 1 via the link mechanism 3 which can be translated by the two connecting rods 8 and 9, and the reversing machine 4 is provided on the reversing machine 4. A holding device 6 for holding the container 5 that can be turned upside down; one connecting rod 8 of the two connecting rods 8 and 9
At the end on the side of the measuring prop 19 in the long rod 11 extending in a direction longer than the end of the other connecting rod 9 to form the extending portion 10; and facing the extending portion 10. The supporting unit 13 or 13a on the side of the weighing machine frame 1 provided; the weight detecting device 7 or 7a provided between the supporting unit 13 or 13a and the extension 10; .

The weight detecting device 7 is the above-mentioned reversal charging device which is a device for detecting a tensile load. or,
The weight detection device 7a is the reversal charging device which is a device for detecting a compressive load. Further, the container 5 is the above-mentioned reversal charging device which is a drum can.

[0007]

The present invention is configured as described above, and when the container 5 is inverted and the contents in the container 5 are discharged, the reversing machine 4 can move in parallel with the weighing machine frame 1, so that the center of gravity of the container 5 is Even when it goes out of the weighing machine frame 1, the weight of the container 5 and its contents, the discharged amount of the contents, the remaining amount of the contents, or the like can be known by the weight detection device 7 or 7a. .

In the above apparatus, the weight of the reversing machine 4 is Wo, the weight of the object to be measured (the weight of the container 5 + the weight of the contents in this case) is W, and the weight Wo is relatively large with respect to the weight W. If the capacity of the weight detection device 7 or 7a is (W +
If you use a device that supports Wo), the minimum display becomes larger (the accuracy decreases).

In this case, in the above-mentioned reverse charging metering device, the two connecting rods 8 and 9 of the link mechanism 3 that can move in parallel.
One of them, for example, the connecting rod 8 is extended longer than the other connecting rod 9 to form the extended portion 10 to form the long rod 11, and the weighing machine frame 1 is made to correspond to the extended portion 10. The support portion 13 or 13a is provided on the side, and the support portion 13 or 1
By providing the weight detecting device 7 or the weight detecting device 7a between the extension 3a and the extension 10 of the long rod 11, one extension 10 is provided.
If the length of the extended rod 11, that is, the length of the long rod 11 is a and the length of the other connecting rod 9 is b, the weight F acting on the weight detection device 7 or 7a is

[0010]

[Equation 1]

Therefore, if the value of b / a is formed to be small, the above problem can be solved and the measurement can be performed with high accuracy.

In the above-mentioned reverse charging metering device, the weight detecting device 7 detects the tensile load, and the change in the weight of the container content when the center of gravity of the container is out of the weighing machine frame 1 is pulled. It can be known as a change in load. In addition, what detects the compression load by the weight detection device 7a also knows the change in the weight of the container contents as the change in the compression load when the center of gravity of the container 5 goes out of the weighing machine frame 1. be able to.

When the container 5 is a drum can, the change in weight of the contents of the drum can can be accurately known when the center of gravity of the inverted drum goes out of the weighing machine frame 1.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 1 is a weighing machine frame, and a pair of weighing columns 17, 17 is provided at an end of a base 16 of the weighing machine frame.
have. A reversing machine 4 is positioned on the weighing machine frame 1.

The reversing machine 4 has a pair of reversing columns 19, 19 at the end of the base 18. Reference numerals 2 and 2 respectively denote connecting rods, and as shown in the drawing, each of the measuring columns 17
Is connected between the reversing column 19 and the reversing column 19.
Can be moved in parallel to the weighing support column 17, and thus the reversing machine 4 in parallel with the weighing machine frame 1. Although the above-mentioned connecting rods 2 and 2 are actually provided in pairs as shown in the drawing, the explanation is complicated, and therefore the connecting rods 2 and 2 are not shown as a pair but as shown in FIG. Two, two
As described below.

Reference numeral 6 denotes a holding device for the container 5 provided on the reversing column 19, and the container 5 can be inverted by a driving device (not shown) as shown by an arrow A6. Of course, the rotation in the opposite direction is also possible. Two
Reference numeral 0 indicates a reversing rotation axis. The container 5 is a drum can in this case, and the holding device 6 is a device for holding the drum can by holding it, and a device of this type is already known, and this known device is used. Next, 21 is an upper support portion provided on the upper end of the weighing column 17, 22 is a holding portion provided on the reversing column 19, and the weight detection device 7 is provided between the upper support portion 21 and the holding portion 22. In this case, a weight detecting device for detecting a tensile load is used as the detecting device 7. Note that this specifically uses a load cell.

Next, in the figure, 7a is the holding portion 22.
And a weight detecting device provided between the lower support portion 23 of the base 16, and in this case a detecting device for detecting a compressive load,
Specifically, a load cell is used. Reference numeral 24 denotes an inlet for the contents, into which the contents of the container 5 are put.

Reference numeral 25 is a mounting bolt. Although two types of weight detection devices 7 and 7a are shown in FIG. 1 for convenience of illustration as described above, it goes without saying that only one of them is used.

Reference numeral 26 shows the center of gravity of the container 4 inverted, and shows the case where the center of gravity 26 goes out of the weighing machine frame 1.

The operation and effect of the embodiment thus formed is substantially the same as the operation and effect of the present invention described above, but as another operation and effect, the parallel movement link mechanism 3 is actually a pair of weighing machine columns. Since the pair of connecting rods 2 and 2 are formed between the pair of rods 17 and the pair of reversing columns 19, the parallel movement of the reversing machine 4 can be stably performed.

The weight detectors 7 and 7a are provided with an upper support portion 21.
Since it is provided in the middle of each width direction of the holding portion 22 and the holding portion 22, correct weight can be detected without being subjected to uneven strain. These actions are the same in other examples described later.

Next, the apparatus shown in FIG. 1 was formed as described above. In this case, the weight of the reversing machine is Wo, and the weight of the measuring section (weight of container 7 + weight of contents) is W. If the weight Wo is relatively large with respect to the weight W and the capacity of the weight detecting device corresponding to the weight (W + Wo) is used, the minimum display becomes large (the accuracy decreases).

The present invention has been made to solve such a problem, and an object of the present invention is to provide an apparatus of the present invention which can measure with high accuracy even when the above problems occur. It is to be. To achieve this goal,
An apparatus shown in FIG. 3, which is another embodiment of the present invention, will be described.

In FIG. 3, components designated by the same reference numerals as those in FIG. 1 have the same names and perform the same functions. Therefore, since they are duplicated, the description thereof will be omitted. The parts different from the device of FIG. 1 will be described.

In the figure, reference numerals 8 and 9 denote two connecting rods, whereby a link mechanism 3 which can move in parallel is formed between the weighing machine support 17 and the reversing support 19.
Then, one of the two rods 8 and 9, for example, the connecting rod 8 is formed with the extended portion 10 so as to be longer than the other rod 9 to form the long rod 11. In both of the weighing machine frame 1 and the reversing machine 4, a supporting portion 13 or 13a is provided in a part of the weighing machine frame 1 in correspondence with the extending portion 10 and the extending portion 10 of the long rod 11. The weight detection device 7 or 7a is provided between the support 13 or 13a and the extension 10.

The operation and effect of the apparatus of this embodiment constructed as described above are substantially the same as the above-described operation and effect of the present invention, and therefore will be omitted.

Next, FIG. 4 shows the apparatus shown in FIG. 1 provided with wheels 27 so as to be movable. In the figure, 28 is a fixed wheel and 29 is a rotating wheel. Next, FIG. 5 shows still another embodiment of the present invention, in which two connecting rods 2 and 2 are axially mounted between the weighing machine frame 1 and the reversing machine 4, and a parallel link mechanism 3 is formed. The holding device 6 for holding the container 5 is provided on the reversing device 4 so as to be reversible by the reversing device 30.

The reversing device 30 includes a vertical rod 31 and a lower oblique rod 3.
2. The upper tilted rod 33 is composed of a lower tilted rod 32. The lower tilted rod 32 is moved in the direction of the arrow A32 by a driving device (not shown) so as to be reversed in the direction of the arrow A6 so that the contents of the container 5 can be discharged backward. ing. Next, FIG. 6 shows another embodiment of the present invention, in which the holding device 6 for holding the container 5 is provided with a guide rail 34 provided in the up-down direction on the reversing machine 4,
The container is formed so as to be vertically movable along the elevating frame 36 composed of the same 35 and to be capable of reversing the container. In this embodiment, the holding device 6 is provided by forming a four-bar link 39 on an elevating member 38 having guide rollers 37, 37. Reference numeral 40 denotes a guide roller, and the holding device 6 is formed so as to be inverted at the upper end portion of the elevating frame 36 as illustrated.

As a result, even if the container 5 is raised and inverted at a high place and the center of gravity of the container goes out of the weighing machine frame 1, the total weight of the container 5 and the contents, or the weight of the discharged product or The weight of the contents remaining in the container 5 can be accurately measured.

[0030]

The present invention is configured as described above, and when the container 5 is inverted and the contents in the container 5 are discharged, the reversing machine 4 can move in parallel to the weighing machine frame 1, so that the container 5
Even if the center of gravity of the container goes out of the weighing machine frame 1, the weight detection device 7 or 7a detects the total weight of the container 5 and its contents, or the discharged amount of the contents, or the remaining amount of the contents. I can know.

In the above apparatus, the weight of the reversing machine 4 is Wo, the weight of the measured object (in this case, the weight of the container 5 + the weight of the contents) is W, and the weight Wo is relatively large with respect to the weight W. If it is larger, the capacity of the weight detection devices 7 and 7a should be (W +
If you use a device that supports Wo), the minimum display becomes larger (the accuracy decreases).

In this case, in the above-mentioned reverse charging metering device,
One of the two connecting rods 8 and 9 of the link mechanism 3 that can move in parallel, for example, the connecting rod 8 is extended longer than the other 9.
0 and the long rod 11, and in both the weighing machine frame 1 and the reversing machine 4, the long rod 11 is connected to the opposite end 12 of the extended portion 10 and the extended portion. 10 is provided with a supporting portion 13 or 13a, and the weight detecting device 7 or 7a is provided between the supporting portion 13 or 13a and the extending portion 10, so that the extending portion 10 is extended to one side.
The length of the longer rod 11, that is, the rod 11 is a and the other continuous rod 9 is
Is b, the weight F acting on the weight detecting device 7 or 7a is

[0033]

[Equation 2]

Therefore, if the value of b / a is formed to be small, the above problem can be solved and the measurement can be performed with high accuracy.

In the reversal charging device, the weight detecting device 7 detects the tensile load. The weight detecting device 7 detects the change in the weight of the container contents when the center of gravity of the container goes out of the weighing machine frame 1. It can be known as a change in load. In addition, what the weight detection device 7a detects the compressive load is to know the change in the weight of the container contents as the change in the compressive load when the center of gravity of the container 5 goes out of the weighing machine frame 1. You can Further, when the container 5 is a drum can, it is possible to accurately know the weight change of the contents of the drum can when the center of gravity of the inverted drum goes out of the weighing machine frame 1.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention and showing an outline of a reverse charging metering device.

2 is a rear view of the device shown in FIG. 1. FIG.

FIG. 3 is a view corresponding to FIG. 1, showing another embodiment of the present invention.

FIG. 4 is a view corresponding to FIG. 1 showing still another embodiment of the present invention.

FIG. 5 is a view corresponding to FIG. 1 showing still another embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 1 showing still another embodiment of the present invention.

FIG. 7 is a side view showing an outline of a conventional similar device.

[Explanation of symbols]

1 Weighing machine frame 2 connecting rod 3 Parallel movement link mechanism 4 reversing machine 5 containers 6 holding device 7 Weight detection device 7a Weight detection device 8 connecting rod 9 connecting rod 10 Extension part 11 Nagaki 12 Opposite end 13 Support 13a support part

Continuation of front page (56) References Japanese Patent Publication 7-117443 (JP, B2) Actual Publication 5-7106 (JP, Y2) Patent 3261402 (JP, B2) Patent 3388667 (JP, B2) Patent 3143288 (JP, B2) B2) Patent 3248019 (JP, B2) Patent 2565418 (JP, B2) Patent 2558190 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) G01G 13/22 B65G 65/23

Claims (4)

(57) [Claims] 1. Two connecting rods 8, on a frame 1 of a weighing machine,
9, a reversing machine 4 provided via a link mechanism 3 that can move in parallel; a holding device 6 for holding a container 5 reversibly provided on the reversing machine 4; of the two connecting rods 8, 9 An extension portion 10 is provided at an end portion of the one connecting rod 8 on the side of the measuring column 19 so as to extend in a direction longer than an end portion of the other connecting rod 9.
The formed long rod 11; and the supporting portion 13 on the side of the weighing machine frame 1 that is provided so as to face the extending portion 10, or the same 13
a; a weight detecting device 7 provided between the supporting part 13 or 13a and the extending part 10 or 7a; 2. The reversal charging device according to claim 1, wherein the weight detecting device 7 is a device for detecting a tensile load. 3. The reversing metering device according to claim 1, wherein the weight detecting device 7a is a device for detecting a compressive load. 4. The inversion metering device according to claim 1, wherein the container 5 is a drum can.