CN209784247U - Device and system for detecting ink uniformity - Google Patents
Device and system for detecting ink uniformity Download PDFInfo
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- CN209784247U CN209784247U CN201920361247.4U CN201920361247U CN209784247U CN 209784247 U CN209784247 U CN 209784247U CN 201920361247 U CN201920361247 U CN 201920361247U CN 209784247 U CN209784247 U CN 209784247U
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Abstract
The application provides a device and a system for detecting ink uniformity, and relates to the technical field of conductive ink detection. A device for detecting ink uniformity comprises a substrate, at least one support body, a plurality of electrodes and a testing device. One end of the supporting body is connected with the base body, and the other end of the supporting body extends towards the direction far away from the base body. The plurality of electrodes are fixed to the support body and arranged along the longitudinal direction of the support body. The testing device is arranged on the base body, and the plurality of electrodes are connected with the testing device. The original existence state of the printing ink is not damaged through the electrodes on the supporting body, the resistivity of the printing ink at different depths is directly detected simultaneously, the uniformity of the printing ink is judged, and the working efficiency is improved.
Description
Technical Field
The application relates to the technical field of conductive ink detection, in particular to a device and a system for detecting ink uniformity.
Background
The electrothermal film is a polyester film which can generate heat after being electrified and is made by processing and hot-pressing conductive special printing ink and metal current carrying strips between insulating polyester films. The conductive ink which plays a role in heating in the electrothermal film needs to have good and stable conductive performance so as to meet the use requirement of the electrothermal film. The existing detection method for the conductivity of the ink is complex in process and complex in operation.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a device and a system for detecting the uniformity of printing ink, which are simple and convenient to operate and high in detection efficiency.
In a first aspect, an apparatus for detecting ink uniformity is provided in embodiments of the present application, and includes a substrate, at least one support, a plurality of electrodes, and a testing device. One end of the supporting body is connected with the base body, and the other end of the supporting body extends towards the direction far away from the base body. The plurality of electrodes are fixed to the support body and arranged along the longitudinal direction of the support body. The testing device is arranged on the base body, and the plurality of electrodes are connected with the testing device.
This application realizes not destroying the original existing state of printing ink through a plurality of electrodes on the supporter, and direct resistivity is detected simultaneously to the printing ink of the different degree of depth, and then judges the homogeneity of printing ink, has improved work efficiency. The resistivity of different positions is tested, so that the uniformity of the ink can be seen, and the existence state of the ink can be analyzed from the change of the resistivity data. The ink deposition performance is more easily demonstrated when the resistivity is measured.
In the above technical solution, the support body is a stretchable structure.
This structure makes the supporter can change length according to the degree of depth of printing ink, and then can detect the printing ink of the different degree of depth, has improved work efficiency.
In a possible implementation manner, the supporting body comprises a plurality of supporting sections, two adjacent supporting sections are connected in a sliding manner, and each supporting section is provided with one electrode.
furthermore, the support sections are provided with a first surface and a second surface arranged opposite to the first surface, the first surface is provided with a sliding groove, the sliding groove is arranged along the length direction of the support body, the second surface is provided with a sliding block corresponding to the sliding groove, and the two adjacent support sections are connected in a sliding mode through the sliding groove formed in the other support section by the sliding block arranged on one support section.
This simple structure, the length of the adjustment supporter of being convenient for can detect simultaneously the printing ink of co-altitude not.
In a possible implementation manner, the support body comprises a plurality of support tubes, the support tubes are sequentially sleeved with each other, two adjacent support tubes are connected in a sliding manner, and each support tube is provided with an electrode.
furthermore, the supporting pipes are provided with through holes, the through holes are formed in the length direction of the supporting pipes, the supporting pipes are provided with sliding blocks matched with the through holes, and the adjacent two supporting pipes are arranged in the through holes in the other supporting pipe through the sliding blocks in one supporting pipe to realize sliding connection.
this simple structure, the length of the adjustment supporter of being convenient for can detect simultaneously the printing ink of co-altitude not.
In one possible implementation, the supports are arranged in pairs, and the electrodes on the supports are arranged in pairs. The structure ensures that the detection result of the electrode is more accurate.
In one possible implementation, the ratio of the distance between a pair of electrodes to the smallest dimension of the electrode surface is no greater than 0.25, optionally no greater than 0.1.
The larger the ratio of the distance between the electrodes to the minimum dimension of the electrode surface, the greater the effect of the ink around its envelope on the result. Within the distance range, the detection result is more accurate.
in one possible implementation, the electrodes are four probe electrodes or electrode pads.
The four probe electrodes can eliminate the contact resistance between the electrodes and the printing ink, and the precision is higher. The four-probe method is a method for testing by four parallel electrodes, wherein current is provided by two electrodes at the outer side, potential difference is tested by two electrodes at the middle part, and the resistivity of the solution is calculated.
In one possible implementation mode, the testing device comprises a low-voltage alternating current power supply, the power supply voltage is less than 5V, and the power supply frequency is 10Hz-100000 Hz; optionally, the power voltage is less than 500mV, and the power frequency is 50Hz-10000 Hz.
When the ink contains ion pairs, especially when the ink is an aqueous conductive ink, the use of a direct current power source can have an ionic effect on the result. Under the alternating current power supply with the power supply frequency and the power supply voltage, the detection result is accurate. The voltage and power frequency of the condition are short, the electrode response time is short, and stable numerical values are achieved in a short time, so that the reading is accurate, the data reading time is short, the efficiency is high, and the result is accurate.
In a second aspect, embodiments of the present application provide a system for detecting ink uniformity, including a container and the above-mentioned device for detecting ink uniformity, where the container is used for accommodating ink, and the device for detecting ink uniformity is used for detecting ink uniformity.
the system can directly detect the resistivity of the printing ink at different depths at the same time, so that the uniformity of the printing ink is judged, and the working efficiency is improved.
Drawings
in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a first apparatus for detecting uniformity of ink according to an embodiment of the present disclosure;
FIG. 2 is a first structural schematic diagram of a support body provided in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a support section provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a support tube according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a second apparatus for detecting uniformity of ink according to an embodiment of the present disclosure;
FIG. 6 is a second structural schematic diagram of a support body provided in an embodiment of the present application;
FIG. 7 is a schematic structural diagram of a third apparatus for detecting ink uniformity provided in the examples of the present application;
Fig. 8 is a third structural schematic diagram of the support body provided in the embodiment of the present application.
Icon: 100-means for detecting ink uniformity; 110-a substrate; 120-a support; 121-a support section; 1211 — a first surface; 1212-a second surface; 1213-chute; 1215 — a first slider; 123-support tube; 1231-a through hole; 1233-a second slider; 130-an electrode; 140-test device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
in the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the present application, all the embodiments, implementations, and features of the present application may be combined with each other without contradiction or conflict. In the present application, conventional equipment, devices, components, etc. are either commercially available or self-made in accordance with the present disclosure. In this application, some conventional operations and devices, apparatuses, components are omitted or only briefly described in order to highlight the importance of the present application.
At present, the conductivity of the ink is mostly measured after an electrothermal film is manufactured. In some methods, the slurry at different positions is sampled, and the method for judging the uniformity of the slurry through the conductivity of the slurry needs to extract the slurry at different positions, so that interference is inevitably generated on the sampled sample during sampling, and the state of the sampled sample cannot be ensured to be completely consistent with the original state.
The application provides a detect device 100 of printing ink homogeneity can directly carry out the test of resistivity to printing ink, does not destroy the original existing state of printing ink, and tests the resistivity of printing ink different positions simultaneously, judges the homogeneity of printing ink, has improved work efficiency.
Examples
Referring to fig. 1, fig. 5 and fig. 7, fig. 1, fig. 5 and fig. 7 are schematic structural diagrams of the apparatus 100 for detecting ink uniformity provided in this embodiment.
the present embodiment provides an apparatus 100 for detecting ink uniformity, which includes a substrate 110, at least one support 120, a plurality of electrodes 130, and a testing device 140. One end of the supporting body 120 is connected to the base 110, and the other end extends in a direction away from the base 110. The plurality of electrodes 130 are fixed to the support 120 and are disposed along the longitudinal direction of the support 120. The testing device 140 is disposed on the substrate 110, and the plurality of electrodes 130 are connected to the testing device 140.
In this embodiment, the base 110 serves as a basic support for fixing the support body 120 and the test device 140. The shape of the substrate 110 may be a rectangular body, a cylindrical body, or a prismatic body. The material of the substrate 110 may be metal alloy, plastic or wood. The present application is not limited thereto.
the support 120 is used to hold the electrodes 130 so that the electrodes 130 can be placed in inks of different depths and different positions, and can be stationary at a certain depth and position to accurately measure the conductivity at that depth and position. Further, one end of the supporting body 120 is connected to the base 110, and the other end extends away from the base 110. In the present embodiment, the support body 120 has a plate-shaped structure. In other embodiments of the present application, the supporting body 120 may be a cylinder or a rod-shaped structure, which is not limited in the present application.
In the present embodiment, the support plate is perpendicular to the base 110. The structure can better master the position of the supporting plate, and more accurately detect the printing ink at different positions. In other embodiments of the present application, the supporting plate may be inclined or angled with respect to the base 110, and may be disposed according to actual requirements.
In some embodiments of the present application, the number of the support plates is one. I.e. the ink is tested by means of a plurality of electrodes 130 arranged on one support plate. In other embodiments of the present application, the number of the supporting plates may be multiple, and the present application does not limit the number.
In order to detect the inks with different depths, the plurality of electrodes 130 are disposed along the length direction of the support plate, and optionally, the plurality of electrodes 130 are disposed at equal intervals along the length direction of the support plate. In the present embodiment, as shown in fig. 1, the electrodes 130 are disposed on the support plate at three different heights.
In some embodiments of the present application, the support 120 is a retractable structure to ensure that inks of different heights can be detected simultaneously.
As an implementation manner, referring to fig. 2, fig. 6 and fig. 8, the supporting body 120 includes a plurality of supporting sections 121, two adjacent supporting sections 121 are connected in a sliding manner, and each supporting section 121 is provided with an electrode 130. Further, as shown in fig. 3, the support segments 121 have a first surface 1211 and a second surface 1212 opposite to the first surface 1211, the first surface 1211 is provided with a sliding slot 1213, the sliding slot 1213 is arranged along the length direction of the support body 120, the second surface 1212 is provided with a first slider 1215 corresponding to the sliding slot 1213, and two adjacent support segments 121 are slidably connected by the sliding slot 1213 arranged on the first slider 1215 on one support segment 121 and the sliding slot 1213 on the other support segment 121. The first slider 1215 is disposed at an end of the second surface 1212, and the first slider 1215 is T-shaped. The length of the support body 120 is changed by stretching or compressing the plurality of support sections 121. In some embodiments of the present application, the number of the support segments 121 is 1-10, and optionally, 2-4. The manner of matching the first slider 1215 with the sliding groove 1213 is a common means in the art, and the present application does not limit the structure thereof.
As another implementation manner, referring to fig. 4, the supporting body 120 includes a plurality of supporting tubes 123, the supporting tubes 123 are sequentially sleeved, two adjacent supporting tubes 123 are slidably connected, and each supporting tube 123 is provided with one electrode 130. Further, the support tube 123 is provided with a through hole 1231, the through hole 1231 is disposed along the length direction of the support tube 123, the support tube 123 is provided with a second slider 1233 matched with the through hole 1231, and two adjacent support tubes 123 are slidably connected by the second slider 1233 disposed on one support tube 123 and the second slider 1233 disposed on the other support tube 123. The plurality of support tubes 123 are stretched or compressed to change the length of the support body 120. In some embodiments of the present application, the number of the support tubes 123 is 1 to 10, and optionally, 2 to 4. The manner of fitting the second slider 1233 with the through hole 1231 is a general means in the present technical field, and the present application does not limit the structure thereof.
As one implementation, the electrodes 130 in this embodiment are four probe electrodes. The four-probe electrode can eliminate the contact resistance between the electrode 130 and the ink, and the precision is higher. The four-probe method is a method of performing a test by four parallel electrodes 130, wherein a current is supplied through the outer two electrodes 130, a potential difference is measured through the middle two electrodes 130, and the resistivity of a solution is calculated.
The volume resistivity of the four-probe test ink was calculated by equation (1),
ρ＝U/I×2πd (1)
In the formula:
ρ: volume resistivity value (Ω · cm) of the sample;
u: testing the obtained voltage magnitude (V);
I: the supplied current magnitude (A);
d: distance (cm) between four probe electrodes.
In some embodiments of the present application, the support 120 is provided in pairs, and the electrodes 130 on the support 120 are provided in pairs. Referring to fig. 5 and 6, fig. 5 is a schematic structural view illustrating the electrodes 130 arranged in pairs, and fig. 6 is a schematic structural view illustrating the support 120 when stretched and contracted. The ratio of the distance between a pair of electrodes 130 to the smallest dimension of the surface of the electrodes 130 is no greater than 0.25, and optionally no greater than 0.1. The larger the ratio of the distance between the electrodes 130 to the minimum dimension of the surface of the electrodes 130, the greater the effect of ink around its area of coverage on the results. Minimum size on face: if the electrode 130 is rectangular, its minimum dimension is the short side dimension; if the electrode 130 is elliptical, its smallest dimension is the minor axis length; if the electrode 130 is perfectly circular, its smallest dimension is the diameter.
Referring to fig. 7, fig. 7 is a schematic view of another structure of the apparatus 100 for detecting ink uniformity of the paired electrodes 130. In some embodiments of the present application, two adjacent support segments 121 of the support body 120 are slidably connected by a side wall. Figure 8 is a schematic view showing the structure of the support body 120 in this connection manner as stretched and contracted,
The volume resistivity of the ink between the two electrodes 130 parallel to each other is calculated by formula (2),
ρ＝R×S/l (2)
in the formula:
ρ: volume resistivity value (Ω · cm) of the sample;
R: a resistance value (Ω) of the ink between the two electrodes 130 parallel to each other;
S: area (cm) of the electrode 1302)；
l: is the distance (cm) between the two electrodes 130 parallel to each other.
The plurality of electrodes 130 on the support 120 are connected to the testing device 140 through wires (not shown). It should be noted that the arrangement of the conductive wires in the present application is a general technique in the field. The testing device 140 is used to provide power to the electrodes 130 and simultaneously receive data detected by the plurality of electrodes 130. It should be noted that, a low-voltage ac power supply is used in the test. When the ink contains ion pairs, especially when the ink is aqueous conductive ink, the use of a direct current power supply has an ionic effect, which affects the result. In this embodiment, the low-voltage ac power supply voltage is 5V or less, optionally 500mV or less, and further 200mV or less. The power frequency is 10Hz-100000Hz, optionally 50Hz-10000Hz, and further 200Hz-1000 Hz. The voltage and power frequency of the condition, the response time of the electrode 130 is short, and a stable numerical value is achieved in a short time, so that the reading is accurate, the data reading time is short, the efficiency is high, and the result is accurate.
For testing, the ink is prepared with measurements and the testing device 140 is opened. The length of the support 120 is adjusted, and the support 120 is inserted into the ink to measure the resistivity of different positions, so that the conductivity of the slurry and the dispersion condition of the ink can be known.
If the ink is internally settled without agglomeration, the resistivity of the upper portion of the ink is lowered, while the resistivity of the middle and lower portions is increased, and the tendency of the increase in resistivity of the lower portion is more pronounced than that of the middle portion. If the interior of the ink is agglomerated without sedimentation, the electrical resistivity of the upper, middle and lower portions of the ink decreases. If both the sedimentation and the agglomeration occur inside the ink, the resistivities of the upper, middle and lower parts are all reduced, and the trend of the reduction of the resistivity of the upper part is more obvious than the trend of the reduction of the resistivities of the middle part and the lower part.
The resistivity of different positions is tested, so that the uniformity of the ink can be seen, and the existence state of the ink can be analyzed from the change of the resistivity data. The ink deposition performance is more easily demonstrated when the resistivity is measured.
the embodiment of the present application provides a system (not shown) for detecting ink uniformity based on an apparatus 100 for detecting ink uniformity, comprising a container (not shown) and the apparatus 100 for detecting ink uniformity, wherein the container is used for accommodating ink, and the apparatus 100 for detecting ink uniformity is used for detecting ink uniformity. The system can directly detect the resistivity of the printing ink at different depths at the same time, so that the uniformity of the printing ink is judged, and the working efficiency is improved.
the above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An apparatus for detecting ink uniformity, comprising
a substrate;
The support body is connected with the base body at one end, and the other end of the support body extends in the direction far away from the base body;
A plurality of electrodes fixed to the support and arranged along a longitudinal direction of the support;
The testing device is arranged on the base body, and the plurality of electrodes are connected with the testing device.
2. The apparatus for detecting ink uniformity of claim 1, wherein the support is a stretchable structure.
3. The apparatus for detecting ink uniformity according to claim 2, wherein the supporting body comprises a plurality of supporting segments, two adjacent supporting segments are slidably connected, and each supporting segment is provided with one of the electrodes.
4. The apparatus according to claim 3, wherein the support segments have a first surface and a second surface opposite to the first surface, the first surface is provided with a sliding slot, the sliding slot is disposed along a length direction of the support body, the second surface is provided with a sliding block corresponding to the sliding slot, and two adjacent support segments are slidably connected by the sliding block of one support segment being disposed on the sliding slot of the other support segment.
5. The apparatus for detecting uniformity of ink according to claim 2, wherein said supporting body comprises a plurality of supporting tubes, said supporting tubes are sequentially sleeved, and two adjacent supporting tubes are slidably connected, and each supporting tube is provided with one said electrode.
6. The apparatus for detecting ink uniformity according to claim 1, wherein the support is provided in pairs, and the electrodes are provided on the support in pairs.
7. The apparatus for detecting ink uniformity according to claim 6, wherein the ratio of the distance between a pair of said electrodes to the smallest dimension of the electrode surface is not greater than 0.25.
8. The apparatus for detecting ink uniformity according to claim 1, wherein said electrode is a four-probe electrode or an electrode sheet.
9. The apparatus for testing ink uniformity according to claim 1, wherein said testing apparatus comprises a low voltage ac power supply, the voltage of the power supply is less than 5V, and the frequency of the power supply is 10Hz to 100000 Hz.
10. A system for detecting ink uniformity, comprising a container for containing ink and the apparatus for detecting ink uniformity of any one of claims 1 to 9 for detecting ink uniformity.
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| CN201920361247.4U CN209784247U (en) | 2019-03-20 | 2019-03-20 | Device and system for detecting ink uniformity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372215A (en) * | 2022-06-27 | 2022-11-22 | 岳阳耀宁新能源科技有限公司 | Evaluation method for stability of lithium ion battery slurry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372215A (en) * | 2022-06-27 | 2022-11-22 | 岳阳耀宁新能源科技有限公司 | Evaluation method for stability of lithium ion battery slurry |
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