CN203629651U - Computer combined weigher with automatic calibration - Google Patents
Computer combined weigher with automatic calibration Download PDFInfo
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- CN203629651U CN203629651U CN201320685838.XU CN201320685838U CN203629651U CN 203629651 U CN203629651 U CN 203629651U CN 201320685838 U CN201320685838 U CN 201320685838U CN 203629651 U CN203629651 U CN 203629651U
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- lever
- load cells
- take
- scale
- standard test
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Abstract
The utility model discloses a computer combined weigher with automatic calibration. The computer combined weigher comprises a supporting shell and a plurality of weigher bodies extending from the supporting shell. Each of the weigher bodies comprises a weighing bucket, a connecting piece and a weighing sensor. One end of the weighing sensor is fixedly connected with the supporting shell, and the other end of the weighing sensor is fixedly connected with the weighing bucket through the connecting piece. The weighing sensor is provided with a sensitive component. The computer combined weigher also comprises a lever, an automatic telescopic device and a standard weight. The lever is rotatingly connected to the supporting shell. The automatic telescopic device is provided with an output rod capable of moving up and down. One end of the lever is connected with the output rod, and the other end of the lever is connected with the standard weight and is just above the top face of the weighing sensor with the sensitive component. Through the automatic up and down movement of the output rod, the standard weight is driven to be separated from or close to the sensitive component at the top face of the weighing sensor. The computer combined weigher can automatically calibrate the weighing sensor, and the efficiency and accuracy are improved.
Description
Technical field
The utility model relates to computer combination scale, is specifically related to automatically-calibrated computer combination scale.
Background technology
Computer combination scale claims again computer balance, combination balance, and bull scale, electronic scales, electronics bull scale, the multiple scale bodies that generally comprise support housing and extended to surrounding by support housing, generally claim body to comprise LOAD CELLS and weighing bucket, weighing bucket is connected with LOAD CELLS.In scale body, there is the testing circuit that is electrically connected with LOAD CELLS and for showing the display unit of the numerical value of weighing.For the accuracy of guaranteeing that scale body is weighed, need regularly LOAD CELLS to be demarcated, for determining the linear input/output relation of LOAD CELLS, give sensor scale division value, this is the starting condition of the normal work of LOAD CELLS.To the demarcation of LOAD CELLS, obtain the linear input/output relation of LOAD CELLS, the also i.e. demarcation to computer combination scale.
At present, to the demarcation of LOAD CELLS be by standard test weight manual loading on weighing bucket, detect the standard value of weigh apparent value and the standard test weight of scale body, complete after demarcating and manually take out standard test weight to unload standard test weight.When this calibration process is unloaded by weighing bucket and two scale values that LOAD CELLS obtains when manual loading standard test weight, determine the linear input/output relation of LOAD CELLS, but, this calibration process comparatively bothers, and need to repeat each scale body on support housing to demarcate respectively, complex operation, efficiency is low, and manual operation easily brings operate miss, accuracy rate is low.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is the computer combination scale that provides automatically-calibrated, and energy automatic Calibration LOAD CELLS, has improved efficiency and accuracy rate.
The purpose of this utility model adopts following technical scheme to realize:
Automatically-calibrated computer combination scale, comprise support housing and by the multiple scale bodies that stretch out on support housing, it is characterized in that: described scale body comprises weighing bucket, web member and LOAD CELLS, one end and the support housing of described LOAD CELLS are fixedly linked, and the other end of LOAD CELLS is fixedly linked through described web member and weighing bucket; The one end being connected with web member in described LOAD CELLS and the end face of LOAD CELLS all have sensitive element; Described computer combination scale also comprises lever, automatic extending-contracting apparatus and standard test weight, described lever is rotatably connected on support housing, described automatic extending-contracting apparatus has take-off lever moving up and down, one end of described lever is connected with described take-off lever, and the other end of lever is connected with standard test weight and is positioned at LOAD CELLS end face and has the top of described sensitive element; By the sensitive element that automatically moves up and down to order about standard test weight disengaging or laminating LOAD CELLS end face of take-off lever.
Preferably, described automatic extending-contracting apparatus comprises electromagnet and the described take-off lever of inhaling mutually or repelling each other with this electromagnet, and this take-off lever is in electromagnet, and described take-off lever vertically arranges.
Preferably, the other end of described standard test weight and lever is removably connected.
Compared to existing technology, the beneficial effects of the utility model are:
Computer combination scale of the present utility model can carry out activation lever by automatic extending-contracting apparatus and rotate, thereby drive standard test weight to be automatically placed on the end face of LOAD CELLS or the end face of disengaging LOAD CELLS, thereby automatically complete proving operation, it is simple to operate, efficiency is high, avoid manual operation easily to bring operate miss, improved accuracy rate.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is that the utility model electromagnet loads the computer combination scale structural representation after forward voltage;
Fig. 2 is that the utility model electromagnet loads the computer combination scale structural representation after reverse electrical source.
In figure: 1, support housing; 2, scale body; 21, weighing bucket; 22, web member; 23, LOAD CELLS; 3, lever; 4, automatic extending-contracting apparatus; 41, take-off lever; 42, electromagnet; 5, standard test weight.
Embodiment
Automatically-calibrated computer combination scale as shown in Figure 1 and 2, comprises support housing 1, by the multiple scale bodies 2, lever 3, automatic extending-contracting apparatus 4 and the standard test weight 5 that stretch out on support housing 1.In Fig. 1, only shown with a scale body 2, scale body 2 comprises weighing bucket 21, web member 22 and LOAD CELLS 23, and one end of LOAD CELLS 23 and support housing 1 are fixedly linked, and the other end of LOAD CELLS 23 is fixedly linked through web member 22 and weighing bucket 21; The end face of the one end being connected with web member 22 in LOAD CELLS 23 and LOAD CELLS 23 all has sensitive element (not shown).Wherein, sensitive element is the element of direct feeling measured and output and measured other amounts that have definite relation, in the time that weighing bucket 21 loads article, the residing position of each sensitive element is different and have corresponding different input/output relation formula, thereby the sensitive element of relevant position can calculate according to input/output relation formula the weight of weighing by picked up signal.Sensitive element can be the elastic body of resistance strain weighing transducer.
The lever 3 of the present embodiment is rotatably connected on support housing 1, and the fulcrum that lever 3 is set on support housing 1 can be realized the rotation of lever 3.Automatic extending-contracting apparatus 4 has take-off lever 41 moving up and down, and one end of lever 3 is connected with take-off lever 41, and the other end of lever 3 is connected with standard test weight 5 and is positioned at LOAD CELLS 23 end faces and has the top of sensitive element; By take-off lever 41 automatically move up and down order about that standard test weight 5 departs from or the sensitive element of LOAD CELLS 23 end faces of fitting.Standard test weight 5 loads and unloading automatically, then by detecting the actual apparent value of scale body, realizes automatic Calibration.The standard test weight 5 of the present embodiment is removably connected with the other end of lever 3, is convenient to standard of replacement counterweight 5 in the time that needs increase or reduce the second scale value.
The automatic extending-contracting apparatus 4 of the present embodiment comprises electromagnet 42 and through the take-off lever 41 in this electromagnet 42, take-off lever 41 is armature, and it vertically arranges.As shown in Figure 1, when electromagnet 42 loads after forward power supply, adhesive take-off lever 41 moves straight down, thereby makes standard test weight 5 keep departing from the end face of LOAD CELLS 23.As shown in Figure 2, when electromagnet 42 loads after reverse electrical source, standard test weight 5 autonomous fall and be carried in the sensitive element place of LOAD CELLS 23 end faces, mention take-off lever 41 through the rotation of lever 3 simultaneously.Relative set circuit arrangement, can be in circuit arrangement setting program automatically control electromagnet 42 and load forward voltage or load reverse electrical source, can complete automatic Calibration; Can calculate and obtain input/output relation formula corresponding to sensitive element by circuit arrangement simultaneously, and then accurately obtain the input/output relation of LOAD CELLS 23.
In addition, automatic extending-contracting apparatus 4 also can adopt cylinder, and the push rod of cylinder is described take-off lever 41, can realize equally automatic loading and unloading to standard test weight 5.
Two of the purpose of this utility model adopts following technical scheme to realize:
The scaling method that uses above-mentioned computer combination scale, comprises the steps:
(1) electromagnet is loaded to forward power supply, take-off lever is moved down under the suction of electromagnet, lever rotates and drives standard test weight to remain in LOAD CELLS top;
(2) obtain the apparent value of weighing of unloaded computer combination scale, this apparent value of weighing is as the first scale value for obtaining the linear input/output relation of LOAD CELLS;
(3) electromagnet is loaded to reverse electrical source, take-off lever is moved under the repulsion effect of electromagnet, lever rotates and drives the sensitive element of standard test weight laminating LOAD CELLS end face;
(4) acquisition is fitted with the apparent value of weighing of the computer combination scale of LOAD CELLS, and this apparent value of weighing is as the second scale value for obtaining the linear input/output relation of LOAD CELLS;
(5) according to the first obtained scale value and the second scale value, the corresponding linear input/output relation that calculates acquisition LOAD CELLS, thus complete the demarcation to computer combination scale.Improve the accuracy rate of weighing of scale body.
Wherein, in step (5), the computer combination scale during using zero load is worth y as the zero point of weighing
1, the first scale value x
1with y
1proportionate relationship be the linear input/output relation of LOAD CELLS, the linear input/output relation formula of LOAD CELLS is y
1=kx
1+ b; By the second scale value x
2as the full scale value y that weighs
2, the weight of established standards counterweight is this full scale value y that weighs
2, the linear input/output relation formula of LOAD CELLS is y
2=kx
2+ b, wherein, k and b are constant.Due to y
1=0, y
2for the weight of standard test weight, and x
1and x
2for the apparent value of computer combination scale, be known quantity, thereby obtain the value of k and b, and then obtain the linear input/output relation of LOAD CELLS, LOAD CELLS is demarcated.
Be understandable that, also can be according to demarcating needs, and computer combination scale during using zero load is as any determined value y weighing in scope of computer combination scale
01, the weight of established standards counterweight is any another determined value y that computer combination scale is weighed in scope
02, by the first known scale value x
1with the second scale value x
2all can obtain k in above formula and the value of b, and then obtain the linear input/output relation of LOAD CELLS, LOAD CELLS is demarcated.
Above-mentioned embodiment is only preferred implementation of the present utility model; the scope that can not limit with this utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (3)
1. automatically-calibrated computer combination scale, comprise support housing and by the multiple scale bodies that stretch out on support housing, it is characterized in that: described scale body comprises weighing bucket, web member and LOAD CELLS, one end and the support housing of described LOAD CELLS are fixedly linked, and the other end of LOAD CELLS is fixedly linked through described web member and weighing bucket; The one end being connected with web member in described LOAD CELLS and the end face of LOAD CELLS all have sensitive element; Described computer combination scale also comprises lever, automatic extending-contracting apparatus and standard test weight, described lever is rotatably connected on support housing, described automatic extending-contracting apparatus has take-off lever moving up and down, one end of described lever is connected with described take-off lever, and the other end of lever is connected with standard test weight and is positioned at LOAD CELLS end face and has the top of described sensitive element; By the sensitive element that automatically moves up and down to order about standard test weight disengaging or laminating LOAD CELLS end face of take-off lever.
2. automatically-calibrated computer combination scale according to claim 1, it is characterized in that: described automatic extending-contracting apparatus comprises electromagnet and the described take-off lever of inhaling mutually or repelling each other with this electromagnet, this take-off lever is in electromagnet, and described take-off lever vertically arranges.
3. automatically-calibrated computer combination scale according to claim 2, is characterized in that: the other end of described standard test weight and lever is removably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685838.XU CN203629651U (en) | 2013-10-31 | 2013-10-31 | Computer combined weigher with automatic calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685838.XU CN203629651U (en) | 2013-10-31 | 2013-10-31 | Computer combined weigher with automatic calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629651U true CN203629651U (en) | 2014-06-04 |
Family
ID=50816117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685838.XU Withdrawn - After Issue CN203629651U (en) | 2013-10-31 | 2013-10-31 | Computer combined weigher with automatic calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604487A (en) * | 2013-10-31 | 2014-02-26 | 广州广田包装机械有限公司 | Computer combination scale with function of automatic calibration and calibration method thereof |
| CN105067097A (en) * | 2015-08-18 | 2015-11-18 | 中国航天空气动力技术研究院 | Multi-weighing-sensor on-line calibration method for mass measurement platform of unmanned plane |
-
2013
- 2013-10-31 CN CN201320685838.XU patent/CN203629651U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604487A (en) * | 2013-10-31 | 2014-02-26 | 广州广田包装机械有限公司 | Computer combination scale with function of automatic calibration and calibration method thereof |
| CN103604487B (en) * | 2013-10-31 | 2015-12-23 | 广州广田包装机械有限公司 | Automatically-calibrated computer combination scale and scaling method thereof |
| CN105067097A (en) * | 2015-08-18 | 2015-11-18 | 中国航天空气动力技术研究院 | Multi-weighing-sensor on-line calibration method for mass measurement platform of unmanned plane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |