CN203324137U - Rapid tester for content of dry rubber of natural rubber - Google Patents
Rapid tester for content of dry rubber of natural rubber Download PDFInfo
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- CN203324137U CN203324137U CN2013203079514U CN201320307951U CN203324137U CN 203324137 U CN203324137 U CN 203324137U CN 2013203079514 U CN2013203079514 U CN 2013203079514U CN 201320307951 U CN201320307951 U CN 201320307951U CN 203324137 U CN203324137 U CN 203324137U
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Abstract
The utility model relates to a rapid tester for content of dry rubber of natural rubber. The tester comprises a body, wherein an openable convex cover plate, a press key panel, a vacuum meter and a switch are arranged on the upper surface of the body, a heat conductive heating plate is arranged on the upper surface of the body below the convex cover plate, a convex cavity formed by the convex cover plate and the upper surface of the body is connected with a vacuum pump for vacuumizing the convex cavity and a vent valve for degassing, and the body is also connected with a circuit board. According to the rapid tester, rubber latex is dried under a vacuum negative pressure condition through a vacuum drying modular method, under the vacuum negative pressure condition, the boiling point of water is reduced below 100 DEG C, bubbles rapidly burst even if forming, the wrapped steam is released, and the escaped steam can be rapidly extracted in vacuum, so that the purpose of rapid drying is achieved. The tester can be used for testing the content of the dry rubber in the natural rubber rapidly and accurately, and the operation is simple.
Description
Technical field
The utility model relates to a kind of for measuring the equipment of natural rubber dry rubber content, especially a kind of analyzer that utilizes dry rubber content in vacuum drying agent approach Fast Measurement natural rubber.
Background technology
At present, in the dry glue fields of measurement of natural rubber, measure the dry rubber content in latex, require more accurate main employing oven for drying method, still this method (needing 8-12 hour) consuming time, power consumption, complex operation, be only applicable to measure a small amount of sample.Instrument and method that the dry glue of more than the ten kind survey such as hydrometer method, photoelectric method, infrared survey glue instrument occurred again subsequently, but the error ratio that these methods have is larger, less employing.At present in Quick Measuring dry rubber content field, adopting more is latex testing instrument by microwave, but higher to repeatability, anti-interference and the stability requirement of measuring sample, yet needs further perfect.For a long time, respectively plant glue country and be devoted to find a kind of accurate, quick, easily operation always, interference-free, not affected by adulterant, Rapid dry glue assay equipment and method that the what is called of the oven method precision that is near the mark most again is desirable.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part and a kind of accurate, quick, maneuverable natural rubber dry rubber content analyzer is provided.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of natural rubber dry rubber content Quick testing instrument, comprise body, described body upper surface is provided with openable convex cover plate, key panel, vacuum meter and switch, the body upper surface of described convex cover plate below is provided with thermal-conductivity heating plate, the air release that the convex cavity that described convex cover plate and body upper surface form is connected with the vacuum pump for it is vacuumized and is used to its venting, also be connected with circuit board on described body.
As improvement of the technical scheme, described thermal-conductivity heating plate comprises heat-conducting plate, is located at the heating plate of described heat-conducting plate below, and the below of described heating plate is provided with the thermal insulation separation thermosphere, and the two ends of described heat-conducting plate and heating plate are provided with partiting thermal insulation bakelite bar.
As improvement of the technical scheme, described analyzer also comprises that described module is made by the concrete dynamic modulus foam metal for carrying the module of natural rubber, and the bottom of described module is aluminium foil.
As improvement of the technical scheme, on described circuit board, be connected with alarm buzzer.
As improvement of the technical scheme, an end of described convex cover plate is connected with the body loose-leaf by Compress Spring, and the other end of described convex cover plate can be up and down.
As improvement of the technical scheme, also be provided with drawer on described body.
As improvement of the technical scheme, the both sides of described body are provided with is with meshed folding operation platform, and described folding operation platform is connected on body by rectangular loose-leaf, and the body side that is connected with the folding operation platform also is provided with louvre.
As improvement of the technical scheme, described key panel is provided with sample key zone, sample input key district, technology controlling and process key zone, dry always than selection key district and dry rubber content viewing area;
Described sample key zone comprises sample latex general assembly (TW) display window, sample latex general assembly (TW) input key, sample number display window, latex settlement amounts display window, and unit price enters button, the aobvious button of clearing, printout button, balance input key and total zero clearing button.
Described sample input key district comprise alarm lamp, sample selection key, sample input display window and for selecting tare weight, breast is heavy or the selection key of dry weight;
Described technology controlling and process key zone comprises the heat-conducting plate temperature display device, reduce button for heat-conducting plate temperature increase button and the heat-conducting plate temperature that increases, subtracts the heat-conducting plate temperature, the vacuum time display window, reduce button for vacuum time increase button and the vacuum time that increases, subtracts vacuum time, and the anxious gas button of parking;
Described dry always comprise for dry always than selecting display window than selection key district, for increase, subtract dry always than dry always than increasing button, dry always than reducing button, defeated always the doing of hand done always than button with intelligent than button;
Described dry rubber content viewing area comprises total solids content display window and dry rubber content display window.
As improvement of the technical scheme, also be provided with computer output interface for being synchronized to computer on described key panel, for stores synchronized to the USB flash disk socket of USB flash disk, for the printer interface that connects temperature-sensitive receipt printer with for being connected to the electronic balance input interface of electronic balance.
As improvement of the technical scheme, described circuit board is provided with convex cover plate inductive probe lead-in wire lead-in clamp, air release lead-in wire output wiring terminal and vacuum pump lead-in wire output wiring terminal, described convex cover plate is provided with microswitch, when described convex cover plate is pressed, vacuum pump is opened, during described vacuum pump outage, air release is connected venting, and the convex cover plate automatically springs open.
The dry rubber content of latex described in the utility model refers to: every 100 gram latex can with acid cure admittedly the material out quality after drying be how many grams.Usually mean (standard law is surveyed dry rubber content, be completed by baking oven, operates more loaded down with trivial details and time-consuming) with number percent under laboratory condition.In the glue process, always first the fresh latex acid adding is carried out to gel, some non-rubber substances are removed with waste water, then are dried and obtain the dry glue of natural commodity.
Natural rubber dry rubber content Quick testing instrument described in the utility model, utilize the vacuum drying agent approach to make latex carry out drying under the negative pressure of vacuum condition, with this understanding, the boiling point of water is reduced to below 100 degrees centigrade, even forming, bubble also breaks very soon, discharge the water vapor wrapped, can rapidly the water vapor of effusion be taken away under vacuum state, thereby reach quick-drying purpose.But the dry rubber content in described device Fast Measurement natural rubber, accurately, fast, and also simple to operate.
The accompanying drawing explanation
The plan structure schematic diagram that Fig. 1 is a kind of embodiment of natural rubber dry rubber content Quick testing instrument described in the utility model.
The structural representation that Fig. 2 is thermal-conductivity heating plate in the Quick testing instrument of natural rubber dry rubber content shown in Fig. 1.
The sectional structure schematic diagram is looked on the left side that Fig. 3 is the Quick testing instrument of natural rubber dry rubber content shown in Fig. 1.
The plan structure schematic diagram of another embodiment that Fig. 4 is natural rubber dry rubber content Quick testing instrument described in the utility model.
The main TV structure schematic diagram that Fig. 5 is the Quick testing instrument of natural rubber dry rubber content shown in Fig. 4.
The syndeton schematic diagram that Fig. 6 is convex cover plate and body in the Quick testing instrument of natural rubber dry rubber content shown in Fig. 1 and Fig. 4.
The plan structure schematic diagram that Fig. 7 is key panel in the Quick testing instrument of natural rubber dry rubber content shown in Fig. 1 and Fig. 4.
Fig. 8 is for adopting natural rubber dry rubber content Quick testing instrument described in the utility model to measure the operational flowchart of dry rubber content.
Fig. 9 be by total solids content determine intelligence dry always than coordinate diagram.
In figure, 10 is that body, 12 is that drawer, 20 is that convex cover plate, 22 is that Compress Spring, 30 is that key panel, 32 is that computer output interface, 34 is that USB flash disk socket, 36 is that printer interface, 38 is that electronic balance input interface, 40 is that vacuum meter, 42 is that vacuum pump, 50 is that switch, 60 is that thermal-conductivity heating plate, 62 is that heat-conducting plate, 64 is that heating plate, 66 is that thermal insulation separation thermosphere, 68 is that insulated electro batten, 70 is that folding operation platform, 72 is mesh.
Embodiment
For the purpose of this utility model, technical scheme and advantage better are described, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of embodiment of a kind of natural rubber dry rubber content of the utility model Quick testing instrument, as shown in accompanying drawing 1 to 3, described analyzer comprises body 10, described body 10 upper surfaces are provided with openable convex cover plate 20, key panel 30, vacuum meter 40 and switch 50, body 10 upper surfaces of described convex cover plate 20 belows are provided with thermal-conductivity heating plate 60, the air release (not shown in FIG.) that the convex cavity that described convex cover plate 20 and body 10 upper surfaces form is connected with the vacuum pump 42 for it is vacuumized and is used to its venting, also be connected with circuit board (not shown in FIG.) on described body 10.
One end of described convex cover plate 20 can be opened up and down, and body 10 surfaces of described convex cover plate 20 belows are provided with thermal-conductivity heating plate 60, and described thermal-conductivity heating plate 60 is located in the convex cavity of described convex cover plate 20 and body 10 upper surfaces compositions.During use, open convex cover plate 20, testing sample is placed on the thermal-conductivity heating plate 60 of the convex cavity that convex cover plate 20 and body 10 upper surfaces form, convex cover plate 20 closes, utilize described thermal-conductivity heating plate 60 as drying source, 42 pairs of convex cover plates of described vacuum pump 20 vacuumize with the convex cavity that body 10 upper surfaces form simultaneously, make testing sample latex carry out drying under the negative pressure of vacuum condition, with this understanding, the boiling point of water is reduced to below 100 degrees centigrade, bubble allows to form also break very soon and discharges the water vapor wrapped, under vacuum state, can rapidly the water vapor of effusion be taken away, thereby reach quick-drying purpose.After drying completes, open the convex cavity venting that described air release (not shown in FIG.) forms convex cover plate 20 and body 10 upper surfaces.The testing sample complete to drying carries out the balance Weighing, can calculate the total solids content of sample, usually with number percent, means.
Described testing sample refers to carry the module (not shown in FIG.) of latex.Before and after dry, take the tare weight of testing sample, newborn heavy and dry weight with electronic balance respectively, then according to following formula, calculate the total solids content of rubber:
Total solids content=(dry weight-tare weight) ÷ (breast weight-tare weight) * 100%
Described tare weight refers to the weight of the module (not shown in FIG.) for carrying latex; Described breast heavily refer to dry front module (not shown in FIG.) and latex weight and; Described dry weight refer to module (not shown in FIG.) and latex after drying weight and.
Due to latex not after the acid adding convection drying, the total solids content drawn, some non-glue compositions are also contained in its inside, after removing moisture in latex, containing how many general use of non-glue composition dry always than meaning (be dry rubber content with the ratio of total solids content become always do than).Dry always than not being a fixed value, but change along with the change of rubber tree strain, soil, season and extraneous essential condition, the concentration of latex is higher, and non-rubber substance content is fewer, dry always than also healing greatly.Usually mobility scale is between 0.90-0.94.When the operator is experienced, a desirable empirical constant.Also a desirable intermediate value 0.92 is as doing always than coefficient.Also can determine with coordinate curve, while needing relatively the accurate measurement dry rubber content, regularly (as two weeks) measures colloid content in latex and total solids content by standard law, obtains both proportionality constants (always do than).
The total solids content that the vacuum drying agent approach is recorded be multiplied by dry always than, just can calculate dry rubber content, dry rubber content (%)=total solids content (%) * do always than.
Preferably, as shown in Figure 2, described thermal-conductivity heating plate 60 comprises heat-conducting plate 62, is located at the heating plate of described heat-conducting plate 62 belows, and the below of described heating plate is provided with thermal insulation separation thermosphere 66, and the two ends of described heat-conducting plate 62 and heating plate are provided with partiting thermal insulation bakelite bar 68.Preferably, described heat-conducting plate 62 is aluminium alloy heat-conducting plate 62, and described heat-conducting plate 62 is coated with teflon coatings, and described heating plate is aluminium alloy PTC heating plate, and described thermal insulation separation thermosphere 66 is the insulation cotton.The power of described thermal-conductivity heating plate 60 is 500W, alternating current 220V, and working temperature: 150 ℃, precision: ± 3 ℃, range of adjustment: 100-200 ℃, adjustable controlled the demonstration, show on key panel 30 with three charactrons.Circuit board (not shown in FIG.) is provided with heating lead-in wire output wiring terminal and temperature-sensing probe lead-in wire lead-in clamp.
Preferably, described analyzer also comprises the module (not shown in FIG.) for carrying natural rubber, and described module (not shown in FIG.) is made by the concrete dynamic modulus foam metal, and the bottom of described module (not shown in FIG.) is aluminium foil.Measure carrier and select the module (not shown in FIG.) that the concrete dynamic modulus foam metal aluminium is made and bottom is aluminium foil, foam metal aluminium possesses that specific surface area is large, thermal conductivity good, three, porous foam space characteristic is arranged, in splashing into latex heating process, these three characteristics can guarantee that heat fast and effeciently penetrates latex inside, the existence of a large amount of foam voids is arranged, latex is attracted to wherein, when heating, is difficult to form glued membrane and bubble.And utilize thermal-conductivity heating plate 60 as drying source directly contact there is the specific aluminium matter of good conductor module (not shown in FIG.), heat imports into very soon measures carrier module (not shown in FIG.) inside, moisture that can flash baking latex inside.
Preferably, be connected with alarm buzzer (not shown in FIG.) on described circuit board (not shown in FIG.).The setting of described warning honey device can make described analyzer have warning function.At first, because of the artificial origin, do not open convex cover plate 20, and energising thermal-conductivity heating plate 60 continues the heating standby, can cause the overheated scorification of convex cover plate 20; Secondly, because of mechanical reason, convex cover plate 20 is not in the position flicked, and continuous heating in the convex vacuum cavity that thermal-conductivity heating plate 60 forms at convex cover plate 20 and body 10 upper surfaces, in the airtight vacuum chamber, temperature surpasses the above meeting of 100 degree for a long time 20 fusings of convex cover plate or distortion.Therefore, warning function need to be set, when switching on power the standby heating, the normal position of convex cover plate 20 is at the state flicked, the heat of thermal-conductivity heating plate 60 and the heat radiation of space outerpace UNICOM.Also in the position of closing, do not flick when convex cover plate 20 inductive probes detect over 5 minutes convex cover plates 20, be considered as equipment failure; When setting-out product heating, vacuum is dry, the normal vacuum drying working time is 2-8 minute, controllable.When convex cover plate 20 closes vacuum drying work, the working time, within 12 minutes, automatically springing open convex cover plate 20, is considered as equipment failure; Now, cut off heating power supply, alarm lamp flicker on key panel 30, alarm buzzer (not shown in FIG.) rings.Cut off the electricity supply after start again, report to the police and just can remove, recover normal stand-by operation.
Preferably, as shown in Figure 6, an end of described convex cover plate 20 is connected with body 10 loose-leaves by Compress Spring 22, and the other end of described convex cover plate 20 can be up and down.One end of described convex cover plate 20 is connected with body 10 loose-leaves by Compress Spring 22, the other end can be up and down, it is not shown in FIG. that described convex cover plate 20 is provided with microswitch 50(), when convex cover plate 20 is pressed, opening vacuum pump 42(vacuum pump 42 power is 370W, alternating current 220V), vacuumize when being operated in convex cover plate 20 and closing and automatically carry out, vacuumize 5 minutes working times, vacuum conditions time 2-8 minute, precision ± 3 second, adjustable controlled the demonstration, show on key panel 30 with 2 bit digital display.Vacuum time arrives, and vacuum pump 42 outages, connect air release (not shown in FIG.), and described air release (not shown in FIG.) is preferably electromagnetic release valve (not shown in FIG.), and convex cover plate 20 automatically springs open.Circuit board (not shown in FIG.) is provided with convex cover plate 20 inductive probe lead-in wire lead-in clamps, electromagnetic release valve (not shown in FIG.) lead-in wire output wiring terminal and vacuum pump 42 lead-in wire output wiring terminals.
Preferably, as shown in Figure 1, on described body 10, also be provided with drawer 12.Described drawer 12 can arrange the side with described body 10, and the size and number of described drawer 12 can design as required, and the setting of drawer 12 can facilitate user's placing articles.
Another embodiment of natural rubber dry rubber content Quick testing instrument described in the utility model, as shown in accompanying drawing 4-7, described analyzer is except containing structure described above, the both sides of the body 10 of described analyzer are provided with the folding operation platform 70 with mesh 72, described folding operation platform 70 is connected on body 10 by rectangular loose-leaf, and body 10 sides that are connected with folding operation platform 70 also are provided with louvre (not shown in FIG.).Described folding operation platform 70 is connected on body 10 by rectangular loose-leaf, can launch easily or fold, and the setting of described folding operation platform 70, can user friendlyly operate.Described body 10 sides that are connected with folding operation platform 70 also are provided with louvre (not shown in FIG.), described louvre (not shown in FIG.) is preferably Baiyesan-medicinal powder hot hole (not shown in FIG.), the distributing of the heat that described louvre (not shown in FIG.) produces for the analyzer course of work.
Preferably, as shown in Figure 7, described key panel 30 is provided with sample key zone, sample input key district, technology controlling and process key zone, dry always than selection key district and dry rubber content viewing area;
Described sample key zone comprises sample latex general assembly (TW) display window, sample latex general assembly (TW) input key, sample number display window, latex settlement amounts display window, and unit price enters button, the aobvious button of clearing, printout button, balance input key and total zero clearing button;
Described sample input key district comprise alarm lamp, sample selection key, sample input display window and for selecting tare weight, breast is heavy or the selection key of dry weight;
Described technology controlling and process key zone comprises heat-conducting plate 62 temperature display devices, reduce button for heat-conducting plate 62 temperature increase buttons and heat-conducting plate 62 temperature that increase, subtract heat-conducting plate 62 temperature, the vacuum time display window, reduce button for vacuum time increase button and the vacuum time that increases, subtracts vacuum time, and the anxious gas button of parking;
Described dry always comprise for dry always than selecting display window than selection key district, for increase, subtract dry always than dry always than increasing button, dry always than reducing button, defeated always the doing of hand done always than button with intelligent than button;
Described dry rubber content viewing area comprises total solids content display window and dry rubber content display window.
The urgency of described technology controlling and process key zone is parked the gas button, when manual activity, and vacuum pump 42 outages, air release (not shown in FIG.) energising venting, convex cover plate 20 automatically springs open.Described key panel 30 is that the user operates the panel used to analyzer, and the clear in structure of described panel is clear, and button arranges comprehensive and reasonable.
Preferably, also be provided with computer output interface 32 for being synchronized to computer on described key panel 30, for stores synchronized to the USB flash disk socket 34 of USB flash disk, for the printer interface 36 that connects temperature-sensitive receipt printer with for being connected to the electronic balance input interface 38 of electronic balance.The accessible computer of described computer output interface 32, make testing result be synchronized to computer; Described USB flash disk socket 34, can be by the testing result stores synchronized in USB flash disk for inserting USB flash disk; Described electronic balance input interface 38 is for the connecting electronic balance, and dry complete module (not shown in FIG.) and latex carries out the scales/electronic balance weighing metering, can calculate the total solids content of sample; Described printer interface 36, for accessing printer, after mensuration completes, by the printout key on the panel 30 that pushes button, can print testing result by temperature-sensitive receipt printer.
During use, sample is through the vacuum and heating drying technological operation, and from the electronic balance sampling numeral of weighing: tare weight, breast is heavy, the weight numeral of dry weight, the weight range of sample: 0.000-9.999 gram.Then be input to " the sample input shows " on panel with the arabic numeral on dry glue measuring instrument key panel 30, show with five-digit number code pipe.Press " selection " key correspondence: tare weight, breast weigh, dry weight, and while choosing, pilot lamp is bright.Press again " sample selection " key correspondence: 1,2,3,4,5,6, while choosing, pilot lamp is bright.Complete six groups of sample numeral input storages.
" total solid content demonstration " on dry rubber content analyzer key panel 30 completes with five-digit number code pipe, and logic converts: total solid content=(dry weight-tare weight) ÷ (breast weight-tare weight) * 100%, totally six samples.Automatically the conversion result, be presented on the charactron of " total solid amount is containing showing ".Indication range: the 0.0000-0.9999 gram, then be multiplied by 100% and be converted into: the percentages show of 00.00%-99.99%.
Dry always than the determining of (non-rubber substance), with group of four figures pipe, complete.While pressing [hand defeated dry always than] key on panel, hand is defeated dry always bright than pilot lamp, then presses [adding] or [subtracting] key and reach dryly always than demonstration.Indication range: change at 0.88-0.96.And carry out the logic conversion by this numeral.Perhaps, while pressing [intelligence dry always than] key on panel, intelligent do always bright than pilot lamp.When this button is done the used time, " dry always than selecting " the digital demonstration on panel, by the result of " total solid content demonstration " on panel, determined, see that the coordinate of accompanying drawing 9 or following form are definite:
Total solid content is dry always than corresponding form with intelligence:
| Total solid content % | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 |
| Intelligence dry always than | 0.89 | 0.894 | 0.898 | 0.902 | 0.906 | 0.91 | 0.914 | 0.918 | 0.922 | 0.928 | 0.932 | 0.936 | 0.940 |
After logical calculated goes out total solid content numeral and shows, under " intelligence dry always than " button effect, determine " doing always than digital " according to above coordinate or the automatic logic of form, and then remove logic conversion dry rubber content.Dry rubber content=total solid content * dry always than (non-rubber substance) * 100%, and be presented at that " dry rubber content shows " on charactron.
When pressing [unit price enters] key, dry glue unit price input indicator is bright.With the numerical key on panel, key in, dry glue unit price (unit/kilogram), be presented on " the glue valency converts and shows " charactron.Dry glue unit price is not subject to " total zero clearing " key effect.
The input of sample latex general assembly (TW), while pressing sample latex general assembly (TW) [input] key, sample latex general assembly (TW) input indicator is bright.With the input of the numerical key on panel, be presented on " the sample latex general assembly (TW) " group of four figures pipe indication range: 000.0-999.9 kilogram.Press again " sample selection " key correspondence: 1,2,3,4,5,6, the pilot lamp of choosing is bright.Complete six groups of sample latex general assembly (TW) numeral input storages.
Glue valency conversion demonstration completes with group of four figures pipe.Logic converts: glue valency clearing (unit)=sample latex general assembly (TW) (kilogram) * sample dry rubber content (%) * dry glue unit price (unit/kilogram).Totally six samples.Automatic conversion result, while pressing [total price is aobvious] key, total price shows that pilot lamp is bright.Total price shows does the used time, and the clearing of glue valency are presented on the charactron of " the glue valency converts and shows ".Indication range: 0000-9999 unit.
When total reset key, all demonstration data zero clearing (dry always than, dry glue unit price, temperature of heating plate, vacuum time except).
Printout and the corresponding interface: when pressing corresponding six samples of " sample selection " key: 1,2,3,4,5,6, the pilot lamp of choosing is bright.Choose corresponding sample, logic converses corresponding result, presses " printout " key, and the receipt thermal printer prints result.Print receipt and pattern as follows:
Little draft bank: _ _ _ sample number into spectrum: _ _ _
Measure the time on date: _ _ _ sample sent by: _ _ _
Total solids content: _ _ _ (%) latex general assembly (TW): _ _ _ (kilogram)
Dry always than (non-glue): _ _ _ dry glue unit price: _ _ _ (unit/kilogram)
Dry rubber content: _ _ _ (%) settlement amounts: _ _ _ (unit)
Little draft bank: _ _ _ sample number into spectrum: _ _ _
Receive the glue place: _ _ _ recipient: _ _ _
Also can be synchronized to computer by above-mentioned computer output interface 32, by USB flash disk socket 34 stores synchronized, arrive USB flash disk etc.
The specific embodiment that adopts natural rubber dry rubber content Quick testing instrument described in the utility model to carry out dry rubber content mensuration is as follows:
The rubber latex sample taken a morsel with the disposable syringe that removes syringe needle splashes into the module of the number of finishing, and (its weight is ω
0) in, the general assembly (TW) ω of weighing sample and carrier
1, according to said method get several samples to be determined ready.
Thermal-conductivity heating plate 60 is preheated to 150-200 ℃.And automatic temperature-adjusting is controlled.
By ready sample, be positioned on thermal-conductivity heating plate 60.
Preset vacuum time 3-8 minute, cover convex cover plate 20, automatic vacuum is opened, make in system to reach negative pressure state, vacuum tightness is :-0.06 to-0.1Mpa, and vacuum time arrives, and cover plate 20 automatically springs open, take out module (not shown in FIG.) with tweezers, module (not shown in FIG.) is placed cooling 1 minute.
The sample block (not shown in FIG.) that drying is complete is carried out Weighing, obtains weight ω 2; Utilize the total solids content α of following formula calculation sample:
α is multiplied by " dry always than " coefficient and is revised, to obtain dry rubber content accurately, dry rubber content (%)=total solids content (%) * do always than.
The mensuration example of vacuum drying agent approach dry rubber content analyzer
Example: time: 2013-5-6,9:30; Name: Zhang San; Send and receive glue station glue: 98 kilograms; Current glue valency: 28 yuan/kilogram;
Measure total solids content: use one-shot injector, get approximately 0.5 gram of latex, drop in equably Modular surface (module (size: long 35 millimeters * wide 25 milli * thick 6 millimeters), measured.Thermal-conductivity heating plate 60 temperature are controlled at 150 ℃, vacuum tightness-0.09Mpa, and the electronic balance that 5 minutes time was 0.001 with sensibility reciprocal is measured, and does five groups of specimen tests, and measurement result is in Table one;
ω
0: module weight;
ω
1: measure front module and weight of latex;
ω
2: dry complete module and weight of latex;
Table one
Dry rubber content converts
Dry rubber content=total solids content * dry always than (dry always than getting intermediate value 0.92)=23.76% * 0.92=21.86%.
The fresh latex total settlement price converts
Total settlement price=latex general assembly (TW) (kilogram) * dry rubber content % * dry glue unit price (unit/kilogram)=98 * 21.86% * 28=599.84 unit.
Press the printout key, print receipt, as fresh latex clearing foundation.Print result is as follows:
Little draft bank:
00838Sample number into spectrum:
001
Measure the time on date:
2013-5-69:30Sample sent by:
Zhang San
Total solid content:
23.76(%) latex general assembly (TW):
98(kilogram)
Dry always than (non-glue):
0.92Dry glue unit price:
28(unit/kilogram)
Dry rubber content:
21.86(%) settlement amounts:
599.84(unit)
Receive the glue place: _ _ _ recipient: _ _ _
When natural rubber dry rubber content Quick testing instrument described in the utility model is used, should be noted that following some:
The rubber latex sample of titration does not surpass 20% of module weight, in order to avoid cause saturated overflowing;
When sample enters module in titration, should, along surrounding and middle evenly titration, sample be heated evenly; Weighing in time after titration, in order to avoid volatilization naturally affects accuracy;
After sample and module vacuum drying end, when case lid automatically springs open, should take out in time module from thermal-conductivity heating plate.Avoid continuing heating coking sex change, affect accuracy.
Last institute should be noted that; above embodiment is only in order to the technical solution of the utility model to be described but not to the restriction of the utility model protection domain; although with reference to preferred embodiment, the utility model is explained in detail; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (10)
1. a natural rubber dry rubber content Quick testing instrument, it is characterized in that, comprise body, described body upper surface is provided with openable convex cover plate, key panel, vacuum meter and switch, the body upper surface of described convex cover plate below is provided with thermal-conductivity heating plate, the air release that the convex cavity that described convex cover plate and body upper surface form is connected with the vacuum pump for it is vacuumized and is used to its venting, also be connected with circuit board on described body.
2. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, it is characterized in that, described thermal-conductivity heating plate comprises heat-conducting plate, is located at the heating plate of described heat-conducting plate below, the below of described heating plate is provided with the thermal insulation separation thermosphere, and the two ends of described heat-conducting plate and heating plate are provided with partiting thermal insulation bakelite bar.
3. natural rubber dry rubber content Quick testing instrument as claimed in claim 1 or 2, is characterized in that, described analyzer also comprises that described module is made by the concrete dynamic modulus foam metal for carrying the module of natural rubber, and the bottom of described module is aluminium foil.
4. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, is characterized in that, on described circuit board, is connected with alarm buzzer.
5. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, is characterized in that, an end of described convex cover plate is connected with the body loose-leaf by Compress Spring, and the other end of described convex cover plate can be up and down.
6. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, is characterized in that, also is provided with drawer on described body.
7. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, it is characterized in that, the both sides of described body are provided with is with meshed folding operation platform, and described folding operation platform is connected on body by rectangular loose-leaf, and the body side that is connected with the folding operation platform also is provided with louvre.
8. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, is characterized in that, described key panel is provided with sample key zone, sample input key district, technology controlling and process key zone, dry always than selection key district and dry rubber content viewing area;
Described sample key zone comprises sample latex general assembly (TW) display window, sample latex general assembly (TW) input key, sample number display window, latex settlement amounts display window, and unit price enters button, the aobvious button of clearing, printout button, balance input key and total zero clearing button;
Described sample input key district comprise alarm lamp, sample selection key, sample input display window and for selecting tare weight, breast is heavy or the selection key of dry weight;
Described technology controlling and process key zone comprises the heat-conducting plate temperature display device, reduce button for heat-conducting plate temperature increase button and the heat-conducting plate temperature that increases, subtracts the heat-conducting plate temperature, the vacuum time display window, reduce button for vacuum time increase button and the vacuum time that increases, subtracts vacuum time, and the anxious gas button of parking;
Described dry always comprise for dry always than selecting display window than selection key district, for increase, subtract dry always than dry always than increasing button, dry always than reducing button, defeated always the doing of hand done always than button with intelligent than button;
Described dry rubber content viewing area comprises total solids content display window and dry rubber content display window.
9. natural rubber dry rubber content Quick testing instrument as described as claim 1 or 8, it is characterized in that, also be provided with computer output interface for being synchronized to computer on described key panel, for stores synchronized to the USB flash disk socket of USB flash disk, for the printer interface that connects temperature-sensitive receipt printer with for being connected to the electronic balance input interface of electronic balance.
10. natural rubber dry rubber content Quick testing instrument as claimed in claim 1, it is characterized in that, described circuit board is provided with convex cover plate inductive probe lead-in wire lead-in clamp, air release lead-in wire output wiring terminal and vacuum pump lead-in wire output wiring terminal, described convex cover plate is provided with microswitch, when described convex cover plate is pressed, vacuum pump is opened, during described vacuum pump outage, air release is connected venting, and the convex cover plate automatically springs open.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203079514U CN203324137U (en) | 2013-05-31 | 2013-05-31 | Rapid tester for content of dry rubber of natural rubber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013203079514U CN203324137U (en) | 2013-05-31 | 2013-05-31 | Rapid tester for content of dry rubber of natural rubber |
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| CN203324137U true CN203324137U (en) | 2013-12-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706466A (en) * | 2017-01-20 | 2017-05-24 | 广西卓能新能源科技有限公司 | Testing device for solid content of lithium ion battery component |
| CN115078657A (en) * | 2022-07-15 | 2022-09-20 | 江苏迅创科技股份有限公司 | Portable emulsion solid content rapid detection equipment |
-
2013
- 2013-05-31 CN CN2013203079514U patent/CN203324137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706466A (en) * | 2017-01-20 | 2017-05-24 | 广西卓能新能源科技有限公司 | Testing device for solid content of lithium ion battery component |
| CN115078657A (en) * | 2022-07-15 | 2022-09-20 | 江苏迅创科技股份有限公司 | Portable emulsion solid content rapid detection equipment |
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Granted publication date: 20131204 Termination date: 20170531 |