CN215338535U - Precision weighing device for large-batch repeated samples - Google Patents
Precision weighing device for large-batch repeated samples Download PDFInfo
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- CN215338535U CN215338535U CN202121407077.2U CN202121407077U CN215338535U CN 215338535 U CN215338535 U CN 215338535U CN 202121407077 U CN202121407077 U CN 202121407077U CN 215338535 U CN215338535 U CN 215338535U
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Abstract
The utility model relates to a precise weighing device for large-batch repeated samples. The technical scheme is that the precise weighing device for the large-batch repeated samples comprises a weight, a sample frame, a driving device and a controller used for controlling the driving device, wherein a bottom plate of the sample frame is provided with a certain number of weighing holes which are communicated up and down, a weighing element of the weight is provided with a weighing column, the diameter of the weighing column is matched with the aperture of the weighing hole, the sample frame is arranged above the weight, and the driving device can drive the sample frame to move. The weighing column has the advantages that the weighing column is inserted into the weighing holes and jacks up the samples, so that the weighing of a single sample is completed, when a plurality of samples are weighed in sequence, only the distance between the two weighing holes needs to be moved, and the samples do not need to be taken and placed back and forth, so that the long-distance displacement is avoided, the weighing time is greatly shortened, and the working efficiency of weighing a large number of samples is improved.
Description
Technical Field
The utility model relates to the field of weighing devices, in particular to a precise weighing device for large-batch repeated samples.
Background
In many fields, the mass of hundreds of samples needs to be precisely weighed for many times, and if the precise weighing is carried out by an experimenter, the workload is very large, and the weighing is inaccurate.
At present, a production line type automatic weighing device is also available, and the working principle of the device is that a large number of samples are placed on a production line or a bearing platform, a weighing device is arranged beside the samples, the samples are sequentially grabbed from a storage position by a manipulator and then placed on the weighing device, and the samples are placed back to the original position after weighing is completed.
Although this replaces manual weighing, the following disadvantages of such devices still exist: the mechanical arms are used for grabbing and putting back one by one, the stroke is large, when the number of samples is large, the mechanical arms run back and forth, and the weighing efficiency is still low; when a sample is placed on the manipulator, the weighing device is impacted in the vertical direction, so that the precision of precise weighing is influenced; and mechanical arms are required to be designed respectively according to different sample shapes, so that the structure is complex.
Disclosure of Invention
The utility model provides a precision weighing device for large-batch repeated samples, which has smaller motion stroke and higher efficiency and aims at solving the problem of low weighing efficiency caused by large reciprocating stroke of a manipulator when the existing automatic weighing equipment repeatedly weighs a large number of samples.
In order to solve the problems, the utility model adopts the technical scheme that the precise weighing device for the large-batch repeated samples comprises a weight meter, a sample frame, a driving device and a controller for controlling the driving device, wherein a bottom plate of the sample frame is provided with a certain number of weighing holes which are communicated up and down, a weighing element of the weight meter is provided with a weighing column, the diameter of the weighing column is matched with the aperture of the weighing hole, the sample frame is arranged above the weight meter, and the driving device can drive the sample frame to move and lift. When the device is used, a plurality of samples are placed at the positions of the weighing holes in the sample rack, the sample rack is lowered by the driving device, the weighing columns are inserted into the weighing holes and jack up the samples, at the moment, the weighing of a single sample can be completed, after the weighing is completed, the sample rack is lifted, the sample rack only needs to move the spacing distance between the two weighing holes to descend and lift again to weigh an adjacent sample, and the weighing of all the samples in the sample rack can be completed by repeating the steps; meanwhile, a complex manipulator structure is not needed, the structure is simple, the use is convenient, and the cost is low; the sample was jacked up without impact on the weight scale.
Preferably, the driving device is an X-Y-Z three-axis linear module and comprises an X-axis linear guide rail arranged on the rack, the X-axis linear guide rail comprises an X-axis sliding block, a Y-axis linear guide rail is arranged on the X-axis sliding block and comprises a Y-axis sliding block, a lifting device is arranged on the Y-axis sliding block, and the sample rack is arranged at the bottom of the lifting device. Three-axis motion and accurate control.
Preferably, the lifting device is a linear motion motor or a telescopic cylinder.
Preferably, the weighing holes are distributed in a rectangular array on the sample holder. The weighing holes are uniformly spaced, the moving distance of the driving device is the same each time, and only once movement parameter needs to be set, so that the control is convenient.
Preferably, the weighing hole is provided with a containing groove for placing a sample to be weighed, and the geometric center of the containing groove is positioned on the axis of the weighing hole. The operator can conveniently and quickly find the placing position of the sample without adjusting; the holding tank sets up with weighing the hole is concentric, and the sample is difficult for dropping by more stable when jack-up.
Preferably, the weighing scale is an electronic scale, and the weighing column is arranged in the center of a scale pan of the electronic scale. And weighing is accurate.
Preferably, the weighing column is in clearance fit with the weighing hole. The weighing precision is prevented from being influenced by the friction between the weighing column and the weighing hole.
Preferably, the base plate of the sample holder is detachably mounted. Different holding tanks can be designed according to the appearance of the sample, and the bottom plate can be flexibly replaced.
According to the technical scheme, the utility model has the advantages that: the action of taking and placing samples back and forth is avoided, the movement distance of a moving part is greatly shortened, the time interval of weighing is shortened, and the weighing efficiency of a large number of samples is improved; a complex manipulator structure is cancelled, the structure is simple, and the use cost is low; the driving device is reasonable in design, the weighing holes are uniformly distributed, and the movement is convenient to control; impact and friction errors of the weight meter are avoided, and the weighing precision is high; the bottom plate of the sample rack can be replaced according to different samples, and the applicability is strong.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a sample holder according to an embodiment of the present invention.
FIG. 3 is a schematic view of the structure of the weighing hole of the present invention.
Fig. 4 is a schematic structural diagram of the weighing apparatus provided by the present invention during weighing.
In the figure: 1. the device comprises a rack, 2 parts of a driving device, 2 parts to 1 parts of an X-axis linear guide rail, 2 parts to 2 parts of a Y-axis linear guide rail, 2 parts to 3 parts of a lifting device, 3 parts of a sample rack, 4 parts of a weight, 5 parts of weighing holes, 6 parts of weighing columns, 7 parts of accommodating grooves, 8 parts of an X-axis sliding block, 9 parts of a Y-axis sliding block, 10 parts of connecting parts and 00 parts of a sample.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 1-4, a precision weighing device for large-batch repeated samples comprises a frame 1, a driving device 2 is arranged at the top of the frame 1, the driving device 2 is controlled by a controller, the driving device 2 comprises an X-axis linear guide rail 2-1 arranged on the frame 1, the X-axis linear guide rail 2-1 comprises an X-axis slider 8, a Y-axis linear guide rail 2-2 is arranged on the X-axis slider 8, the Y-axis linear guide rail 2-2 comprises a Y-axis slider 9, a lifting device 2-3 is arranged on the Y-axis slider 9, the X-axis linear guide rail and the Y-axis linear guide rail are both motor-driven lead screw structures, the lead screw drives the slider to move axially along the lead screw, the lifting device 2-3 is preferably a linear motion motor, the linear motion motor is also called a linear motor or a push rod motor, and can directly convert electric energy into mechanical energy of linear motion, the motion output end of the linear motion motor is provided with a sample rack 3; the structure of the sample holder 3 is shown in fig. 2, the sample holder 3 is a square frame, the bottom of the sample holder is a detachable bottom plate, a plurality of weighing holes 5 distributed in a rectangular array are arranged on the bottom plate, and the center of the top surface of the sample holder 3 is a connecting part 10 connected with the driving device 2; as shown in fig. 3, an accommodating groove 7 for accommodating a sample to be weighed is arranged above the weighing hole 5, the geometric center of the accommodating groove 7 is located on the axis of the weighing hole 5, a plurality of bottom plates with different accommodating grooves can be manufactured according to different weighed samples, and the bottom plates can be flexibly replaced when in use;
the lower part of frame is equipped with 4 weightings, and 4 preferred electronic scales of weightings are located the below of sample frame 3, and the pan of electronic scale center is equipped with weighing column 6, and the diameter of weighing column 6 and the internal diameter of weighing hole 5 are clearance fit, or the diameter of weighing column 6 is less than the internal diameter of weighing hole 5, avoids taking place the friction between weighing column 6 and the weighing hole 5 and influences the precision of weighing.
The using method of the device comprises the following steps: before weighing, placing a plurality of samples 00 into a sample groove 7, wherein an X-axis linear guide rail 2-1 and a Y-axis linear guide rail 2-2 move cooperatively during weighing to enable a weighing hole 5 of a sample rack 3 to be positioned right above a weighing column 6, then moving a lifting device 2-3 to enable the sample rack 3 to descend, inserting the weighing column 6 into the weighing hole 5, jacking up the samples 00, weighing the samples 00 by a weight scale 4, and then weighing the samples 00 by the weight scale, wherein the state of the weighing device is shown in figure 4; after the sample 00 is weighed, the lifting device 2-3 drives the sample frame 3 to lift, the X-axis linear guide rail 2-1 and the Y-axis linear guide rail 2-2 move in a coordinated manner, so that the adjacent weighing hole 5 moves right above the weighing column 6, and then the sample frame 3 descends and then lifts to weigh the adjacent sample; the above steps are repeated to complete the weighing of all the samples in the sample holder 3.
The lifting device can also adopt a telescopic air cylinder, a hydraulic cylinder and other linear motion elements besides the linear motion motor.
According to the embodiment, the utility model has the beneficial effects that the actions of fetching and placing samples back and forth are avoided, the movement distance of the moving part is greatly shortened, the weighing time interval is shortened, and the weighing efficiency of a large number of samples is improved; a complex manipulator structure is cancelled, the structure is simple, and the use cost is low; the driving device is reasonable in design, the weighing holes are uniformly distributed, and the movement is convenient to control; impact and friction errors of the weight meter are avoided, and the weighing precision is high; the bottom plate of the sample rack can be replaced according to different samples, and the applicability is strong.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a big accurate weighing device of repeated sample in batches, its characterized in that, including weighing (4), sample frame (3), drive arrangement (2) and being used for control drive arrangement's (2) controller, be equipped with weighing hole (5) that link up from top to bottom of a certain amount on the bottom plate of sample frame (3), be equipped with weighing column (6) on the weighing element of weighing (4), the diameter of weighing column (6) with the aperture looks adaptation of weighing hole (5), sample frame (3) set up the top of weighing (4), drive arrangement (2) can drive sample frame (3) remove and go up and down.
2. The precision weighing device for the large-batch repeated samples is characterized in that the driving device (2) is an X-Y-Z three-axis linear module and comprises an X-axis linear guide rail (2-1) arranged on the rack (1), the X-axis linear guide rail (2-1) comprises an X-axis sliding block (8), a Y-axis linear guide rail (2-2) is installed on the X-axis sliding block (8), the Y-axis linear guide rail (2-2) comprises a Y-axis sliding block (9), a lifting device (2-3) is installed on the Y-axis sliding block (9), and the sample rack (3) is installed at the bottom of the lifting device (2-3).
3. A precision weighing apparatus for large batch of repeated samples according to claim 2, characterized in that said lifting means (2-3) is a linear motion motor or a telescopic cylinder.
4. A precision weighing apparatus for large batch of repeated samples according to any one of claims 1 to 3, characterized in that the weighing holes (5) are distributed in a rectangular array on the sample holder (3).
5. A precision weighing apparatus for large batch of repeated samples according to any one of claims 1-3, characterized in that a holding tank (7) for holding the samples to be weighed is arranged above the weighing hole (5), and the geometric center of the holding tank (7) is located on the axis of the weighing hole (5).
6. A precision large batch repeat sample weighing apparatus according to any of claims 1 to 3, wherein the weighing scale (4) is an electronic scale and the weighing column (6) is arranged in the centre of the scale pan of the electronic scale.
7. A precision weighing apparatus for large batch of repeated samples according to any one of claims 1 to 3, characterized in that the weighing column (6) is in clearance fit with the weighing hole (5).
8. A precision weighing apparatus for large batch repeat samples according to claim 5, characterised in that the base plate of the sample holder (3) is removably mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121407077.2U CN215338535U (en) | 2021-06-23 | 2021-06-23 | Precision weighing device for large-batch repeated samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121407077.2U CN215338535U (en) | 2021-06-23 | 2021-06-23 | Precision weighing device for large-batch repeated samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338535U true CN215338535U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121407077.2U Active CN215338535U (en) | 2021-06-23 | 2021-06-23 | Precision weighing device for large-batch repeated samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215338535U (en) |
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2021
- 2021-06-23 CN CN202121407077.2U patent/CN215338535U/en active Active
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Effective date of registration: 20230328 Address after: 531B6, Building 3, University Science Park, No. 750 Xinyu Road, Hi-tech Zone, Jinan City, Shandong Province, 250000 Patentee after: Shandong Yinglun Information Technology Co.,Ltd. Address before: Block A2, Sanqing century wealth center, 359 Shunhua Road, high tech Zone, Jinan City, Shandong Province Patentee before: Jinan Zhongke Bochuang Testing Technology Co.,Ltd. |