KR200177655Y1 - A dual electronic scale - Google Patents

Abstract

The present invention relates to a dual-type electronic balance that can simultaneously weigh two weights to be weighed and measure the weights of two weights together, and accurately obtain the sum of the two weights. It is to install and measure. Its configuration is a lower frame body 10 which is supported on the floor, a load cell unit 20 installed in the lower frame body 10, and a display panel unit connected to the load cell unit 20 and displaying the weight of the heavy object by a numerical value ( 30, the upper frame body 40 which is disposed to have a clearance distance above the lower frame body 10 and is supported by the load cell unit 20, and the cover plate portion 50 which is placed on the upper frame body 40. ), The load cell unit 20 is installed on the left and right sides on the same plane of the lower frame 10, respectively, and consists of the first load cell 21 and the second load cell 22 on the right side. The upper frame body 40 and the cover plate 50 are separated into left and right halves so as to operate separately.

Description

Dual Electronic Scale {A Dual Electronic Scale}

The present invention relates to a dual electronic balance that can be measured by lifting two weights at the same time, each of which is to be weighed, and adding the two weights to an error value accurately.

In general, the balance function is to measure the weight of a heavy object. However, existing scales can only measure the weight of the weight to be measured one by one.

However, as commerce becomes more diverse and the industry develops, it is necessary not only to measure simple weights of heavy weights, but also to measure the weight of two or more heavy weights at the same time. Until the need to measure. Moreover, even if you count tens or hundreds of objects of the same weight, you need to count them all at once through the balance.

As shown in FIG. 1, a conventional electronic balance includes a lower frame body 1 supported on a floor, a load cell 2 installed in the lower frame body 1, and a weight of a heavy object connected to the load cell 2. On the display panel 3 numerically indicated above, on the upper frame 4 supported on the load cell 2 and disposed on the lower frame 1 so as to have a clearance distance therebetween, and on the upper frame 4. The cover plate 5 is mounted.

In the conventional configuration configured as described above, only one heavy object to be measured can be measured on the cover plate 5. Accordingly, not only two different weights can be measured at the same time, but also a sum of two values plus an error value resulting from a difference between two values cannot be calculated.

On the other hand, balances made by installing a plurality of load cells in the left and right or up and down in the domestic patent application Nos. 85-5701, 86-2968 and 86-3586 in the conventionally known electronic balance is known, these are one heavy It is different from the technical concept of the present invention, which can measure two weights as a balance for measuring.

An object of the present invention is to provide a dual electronic balance that can measure the weight of each other by lifting two different weights at the same time.

Another object of the present invention is to provide a dual electronic balance capable of accurately measuring the sum of the sum of two different weights and the difference between the weights.

Still another object of the present invention is to provide a dual electronic balance capable of counting the number of multiple weights having the same weight at one time.

1 is a cross-sectional view showing a prior art,

2 is an exploded perspective view illustrating a dual electronic balance according to the present invention;

3 is a cross-sectional view showing a dual electronic balance according to the present invention,

4 to 6 is an exemplary view applied to a truck scale in another embodiment according to the present invention,

7 is a block diagram showing the configuration of a circuit for implementing the operation of the electronic balance according to the present invention;

8 is an exemplary diagram illustrating an example of a function signal input unit of FIG. 7.

* Description of the symbols for the main parts of the drawings *

10: lower body 20: load cell unit

21: first load cell 22: second load cell

30: display panel 40: upper frame body

41: first upper body 42: second upper body

50: cover plate 51: first cover plate

52: second cover plate 60: moisture detection sensor

In order to achieve the above object, the present invention dual-type electronic balance also has a lower frame body supported on the bottom, a load cell unit installed in the lower frame body, a display panel unit connected to the load cell unit and displaying a weight of a heavy object in numerical value; The upper frame body disposed to have a clearance distance on the upper portion of the lower frame body and supported by the load cell portion, and the cover plate portion mounted on the upper frame body is no different from the conventional technical concept.

However, the present invention is installed on the left and right sides of the load cell unit on the same plane of the lower frame, respectively, consisting of a first load cell and a second load cell on the right side, the upper frame and the cover plate portion separated into left and right halves, respectively flow up and down To be a basic technical feature of the present invention.

Hereinafter, the present invention will be described in more detail with reference to exemplary embodiments shown in the accompanying drawings.

In the embodiment of the present invention, as shown in Figures 2 and 3, the lower frame body 10 that is supported on the floor, the load cell unit 20 is provided in the lower frame body 10, and the load cell unit 20 A display panel unit 30 connected to the upper panel 40 and having a clearance distance thereon, the upper frame body 40 being supported to the load cell unit 20 so as to have a clearance distance therebetween; In the cover plate portion 50 is mounted on the upper frame body 40, the load cell portion 20 is installed on the left and right sides on the same plane of the lower frame body 10, but the first load cell 21 on the sin side And a second load cell 22 on the right side, the upper frame body 40 and the cover plate part 50 have a first upper frame body 41 and a first cover plate 51 on the left side, and a second upper frame body on the right side. Realizing the basic technical idea of the present invention in that the 42 and the second cover plate 52 to separate and flow All.

When the weight is to be measured in the present embodiment implemented as described above, the weight of the two weights on the first cover plate 51 and the second cover plate 52, respectively, can be measured simultaneously, second, If you want to sum the weights of the two heavy weights respectively placed on the first cover plate 51 and the second cover plate 52, press the summing key to calculate the total value, and the error value of the weight difference between the two heavy weights. If you want to know the measurement value can be calculated by pressing the error key, third, when counting the number of tens, hundreds of weights having the same weight, put one unit weight on the first cover plate 51 Lay out and put a plurality on the second cover plate 52 and then press the count key can easily calculate the total number of weights.

In addition, as shown in FIG. 2, the moisture detection sensor 60 may be attached to the lower frame 10 so as to be connected to the display panel 30 so that the moisture content may be measured on the heavy material. Therefore, it is possible to measure the net weight of the weight of the weight by having a moisture detection sensor 60 that can detect the moisture of the weight with the balance.

Although not shown, by using an integrated cover that can cover two cover plates at the same time it is possible to measure the weight of the object under the measurement range of the two load cells. At this time, the lower portion of the integrated cover is formed with a protrusion that abuts the four corners of each cover plate. That is, since all eight protrusions are formed at the lower part of the integrated cover to disperse the weight of the object under test, accurate weight values can be calculated.

On the other hand, in another embodiment of the present invention, it can be usefully applied to automatically weigh the load of various cargo vehicles, such as trucks, trucks.

That is, Figures 4 to 6 show an embodiment for automatically weighing the loading amount of the freight vehicle of the present invention, the lower frame body 10, which is supported on the floor and is a concrete structure, which is separately installed on the lower frame body 10 A first load cell 21 and a second load cell 22, a display panel unit 30 connected to the first and second load cells and indicating a weight of a heavy product by a numerical value, and supported by the first and second load cells, respectively. The first upper frame body 41 and the second upper frame body 42, which are separated and installed in the longitudinal direction of the pair of I-shaped steels, and the first cover plate 51 which is respectively mounted on and separated from the upper portions of the first and second upper frame bodies. And it is to implement the basic technical idea of the present invention in that it is composed of a second cover plate (52).

This embodiment, which is implemented as described above, shows that one load freight vehicle is measured in FIG. 4, and that the load freight vehicle is measured in FIG. 5 simultaneously.

In particular, the other embodiments of the present invention can be more usefully applied when the length of the upper frame body is long. When the upper frame body is long, it will have a connection portion at any point in the prior art, the present invention is installed to be divided into the first upper frame body 41 and the second upper frame body 42. Therefore, the related art having a connecting part has a problem in weighing an accurate load because the connecting part is structurally weak and is susceptible to abnormal deformation. However, according to the present invention, since the first upper frame body 41 and the second upper frame body 42 are separated from each other independently and do not have a connecting portion, accurate loading can be measured.

7 is a block diagram schematically showing the configuration of a circuit for implementing the operation of the electronic balance according to the present invention. A first load cell 21 which senses the weight of the first measured object and outputs it as an electrical signal, and is formed on the horizontal line with the first load cell 21 to detect the weight of the second measured object A function signal input unit 80 including a second load cell 22 for outputting a plurality of functions, a function key for outputting code values corresponding to each function according to a user's intention, and A microprocessor 100 for converting the values transmitted through the first and second load cells 21 and 22 into information corresponding to a function code provided through the function signal input unit 80 and outputting the converted information; According to the control signal output from the 100, the liquid crystal element 30 indicating that the user can recognize the detection result of each of the load cells (21, 22) and the moisture value contained in the object to be detected and represented as an electrical signal Moisture detection sensor 60 and the scene detected through the moisture detection sensor Through a wireless signal output unit 61 for outputting a wireless signal as a wireless signal, a wireless signal input unit 91 for receiving information transmitted from the wireless signal output unit 61, and the wireless signal input unit 91. An interface 92 is shown for delivering the provided value to the microprocessor 100. In the meantime, reference numerals 31, 32, 33, and 34 denote first and second amplifiers, and first and second analog-to-digital conversion circuits (hereinafter, referred to as ADCs).

The function signal input unit 80 includes a plurality of function keys in addition to keys for entering numbers. For example, a function key for summing the weights of two objects sensed by the two load cells 21 and 22, and one sample placed on the first load cell 21 and a plurality of homogeneous articles are placed on the second load cell 22. Moisture detection sensor 60, including a counting function key for calculating the quantity of a plurality of items in a placed state, and a balance function key for displaying comparison results when the same kind of items are placed on both load cells 21 and 22. Drying amount measuring key for measuring the net weight of the article is removed from the moisture removed through the result and the weight value detected by the load cell may be provided.

The electrical signal with respect to the weight of the measured object detected by the first load cell 21 is amplified by the first amplifier 31 and converted into a digital value by the first ADC 33. This digital value is passed to the microprocessor 100. The detection result of the second load cell 22 is also transmitted to the microprocessor 100 via the same path. At this time, when a predetermined key is pressed among the plurality of function keys provided in the function signal input unit 80, the microprocessor 100 reads information for performing the corresponding function from the ROM 72 and the RAM 71. Temporarily store each value in). The calculated information is written on the Liquid Crystal Display 30 as an example of performing the display function in the present invention.

8 is an exemplary diagram illustrating an example of a function signal input unit of FIG. 7. As shown, the weight value of the measured object detected by the first load cell 21 is displayed using a seven segment element in the A display column, and the result of the second load cell 22 is displayed in the B display column. In the column labeled C, the result of each function key operation is displayed as a digital value.

For example, if the user presses the summing function, 30 Kg is displayed in the A display field and 40 Kg is displayed in the B display field, and 70 Kg of the sum is displayed in the C display field, so the weight value of each object and the sum of the weights of the two objects are displayed. Can be calculated simultaneously. In the case of the counting function, one sample is indicated in the A display column through the first load cell, and a plurality of weights are indicated in the B display column through the second load cell, and the quantity of the object placed on the second load cell is indicated in the C display column. Since the weight of the sample and the quantity of the object to be measured are simultaneously displayed. In order to perform this function, the first load cell may be used by installing a high precision load cell to accurately measure the weight of the sample.

When the balance function key is pressed, the weights of the two objects are shown in the A and B display columns, respectively, and the difference value is shown in the C display column. In addition, the shape of the balance is displayed as an image, and the balance of the first or second load cells inclined in the direction in which the weight value is larger is displayed on the LCD screen, so that the user can easily recognize the difference and the weight ratio. Will be.

If you want to calculate the net weight of the scrap iron or grains or other moisture-containing material containing water, put the object to be measured in any load cell and install the moisture sensor 60 to the other object of the same kind. The information detected by the moisture sensor 60 is transmitted to the microprocessor 100 via the wireless signal output unit 61 and the wireless signal input unit 91 and the interface 92. At this time, the microprocessor 100 controls to display the weight value detected by the load cell in the A display column, the moisture detection result in the B display column, and the pure weight value of the object under measurement in the C display column. Therefore, the water content of the object under test and the weight at the time of drying can be easily found out.

As described above, the present invention is installed on the left and right sides of the load cell part on the same plane of the lower frame body, but is installed as a first load cell and a second load cell on the right side, and the upper frame body and the cover plate part are separated into left and right halves respectively. By the flow, the first has the effect of measuring the two weights at the same time, second, the effect of adding the weight of the two weights and the error can be easily calculated, and third, the number of multiple weights having the same weight It has an effect that can be easily counted.

In addition, it has an effect that can be usefully applied as a scale for automatically weighing the load of various cargo vehicles, such as trucks and trucks.

Claims (5)

A lower frame body 10 supported on the bottom, a load cell unit 20 installed in the lower frame body 10, a display panel unit 30 connected to the load cell unit 20 and displaying a weight of a heavy object by a numerical value; The upper frame body 40 is disposed to have a clearance distance on the upper portion of the lower frame body 10 and is supported by the load cell unit 20, and the cover plate 50 is placed on the upper frame body 40. In becoming, The load cell unit 20 is installed on the left and right sides on the same plane of the lower frame 10, respectively, and consists of a first load cell 21 on the opposite side and a second load cell 22 on the right side, and the upper frame 40 and the cover. Plate portion 50 is divided into left and right halves, dual electronic scales, characterized in that to operate separately each. The dual electronic scale according to claim 1, wherein a moisture sensor (60) is attached to the upper and lower frame bodies to be connected to the display panel unit (30). A first load cell which senses the weight of the object and outputs it as an electrical signal; A second load cell configured on the first load cell and a horizontal line to output a weight sensing result of a second measured object; A function signal input unit having a plurality of function keys for outputting code values corresponding to each function according to a user's intention; A microprocessor converting the values transmitted through the first and second load cells into information corresponding to a function code provided through the function signal input unit, and outputting the converted information; And a display unit for displaying a detection result of each load cell to a user according to a control signal output from the microprocessor. The method of claim 3; A wireless signal input unit for receiving the moisture value contained in the object under test as wireless information; A dual electronic scale comprising an interface unit for transmitting a value provided through the wireless signal input unit to the microprocessor to calculate a value obtained by removing moisture from the weight of the same object measured through an arbitrary load cell. . The method of claim 3; The first load cell is a dual electronic scale, characterized in that the precision measurement.