CN214894789U - Dough viscosity tester - Google Patents
Dough viscosity tester Download PDFInfo
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- CN214894789U CN214894789U CN202121674932.6U CN202121674932U CN214894789U CN 214894789 U CN214894789 U CN 214894789U CN 202121674932 U CN202121674932 U CN 202121674932U CN 214894789 U CN214894789 U CN 214894789U
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Abstract
The utility model discloses a dough viscosity apparatus, include: the device comprises a sample table, a tension tester with a load sensing arm driven by a lifting mechanism, and a tension and compression assembly, wherein the tension tester comprises a sleeve, a sample gland, a flexible connecting piece and a compression spring, the sleeve is arranged on the load sensing arm and is provided with an inner cavity with a downward opening, and a first clamping piece and a second clamping piece are arranged in the inner cavity from bottom to top; the sample gland is provided with a connecting rod movably penetrating in the sleeve, and the lower end of the connecting rod is provided with a pressure plate positioned below the sleeve; the flexible connecting piece is arranged at the top of the connecting rod and used for connecting the sleeve and the connecting rod; the compression spring is sleeved on the connecting rod and is positioned between the first clamping piece and the second clamping piece, and the lower end of the compression spring is fixedly connected with the connecting rod. The utility model discloses use extensively, easy and simple to handle, the condition is controllable, and degree of automation is high, has standardized the viscidity measuring standard, has improved measured data's accuracy.
Description
Technical Field
The utility model belongs to the technical field of the grain processing technique and specifically relates to a dough viscidity apparatus is related to.
Background
In the grain quality research and food processing, dough is generally prepared by mixing grain flour and water, kneading, and proofing to form a uniform and viscoelastic mass. The quality of grains varies greatly according to different varieties, the viscosity of the prepared dough also varies, and the viscosity of the dough also has a certain relation with the processing technology. The stickiness of the dough is caused by the phenomenon that the formed dough sticks hands or machines in the kneading or machine pressing process, and the excessively sticky dough not only influences the food processing technology and causes the interruption of the processing process, but also influences the appearance and the taste of the final food. The existing dough viscosity tester has a complex structure and low repeatability, and usually depends on manual judgment of a viscosity measurement starting point or simply takes the time when a probe leaves the dough as a tension starting point, so that the difference of test results is large, and the reference significance of measurement data is reduced.
Disclosure of Invention
In order to solve the above problem, the utility model provides a dough viscosity apparatus can specifically take following technical scheme:
dough viscosity tester, include
The tension tester is provided with a load sensing arm driven by a lifting mechanism;
a tension-compression assembly comprising
The sleeve is arranged on the load sensing arm and is provided with an inner cavity with a downward opening, and a first clamping piece and a second clamping piece are arranged in the inner cavity from bottom to top;
the sample gland is provided with a connecting rod movably penetrating through the sleeve, and the lower end of the connecting rod is provided with a pressure plate positioned below the sleeve;
the flexible connecting piece is arranged at the top of the connecting rod and used for connecting the sleeve and the connecting rod;
the compression spring is sleeved on the connecting rod and positioned between the first clamping piece and the second clamping piece, and the lower end of the compression spring is fixedly connected with the connecting rod;
and the sample platform is arranged below the pressure plate and used for placing dough to be tested.
The first clamping piece and the second clamping piece are clamping rings with through holes arranged at the centers, and the inner diameters of the through holes are matched with the outer diameter of the connecting rod.
And the sample table is provided with a height limit ring for placing dough to be tested.
The height limit ring and the connecting rod are arranged concentrically, and the height limit ring is 10 mm.
The lower surface of pressure disk and the upper surface of sample platform all are provided with fingerprint form structural layer.
The sample platform is provided with the cover of moisturizing with drawing the pressure subassembly outside, it is provided with load response arm mounting hole on the cover to moisturize.
A water mist generator is arranged on the outer side of the moisturizing cover, and an atomizing pipe of the water mist generator is connected with the moisturizing cover; the moisturizing cover is also provided with a convection fan and an electric heating wire; the moisture-preserving cover is internally provided with a temperature sensor and a humidity sensor.
The front side of moisturizing cover is provided with two and runs from opposite directions the door, it places the hole to have seted up one respectively to run from opposite directions on the door, it is provided with the formula of unscrewing hole door to place on the hole.
And a computer interface, a temperature controller and a display screen for displaying the load are arranged on the base of the tension tester.
The utility model provides a dough viscosity tester, it is extensive to use, easy and simple to handle, the condition is controllable, degree of automation is high, draws and presses the subassembly and has buffer function, can slowly exert pressure to the dough, guarantees gland and dough flexible contact, simulates the manual dough state of kneading and pressing, not only can increase the power gradually, can also keep maximum pressure in a certain time, is favorable to the settlement of elevating system stop position simultaneously; the deformation amount of the dough is controlled through the height limit ring, the pressure application end point is further controlled, meanwhile, the self weight of the tension and compression assembly is marked by the 0 point before pressure application, and the self weight is used as the starting point of a tension measurement value during subsequent dough viscosity measurement, so that the viscosity measurement standard is standardized, the accuracy of measurement data is improved, and related researches on grain and food processing are greatly facilitated for related researchers.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific working procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in figure 1, the dough viscosity tester of the utility model comprises a tension tester, a tension and compression component, a sample table and the like.
The tension tester adopts an electronic control system, a speed regulating motor is controlled by a speed regulator to rotate, the speed is reduced by a speed changing mechanical mechanism, a trapezoidal screw rod pair (namely, a lifting mechanism) is driven to drive a load sensing arm 1 to ascend and descend, the force value of the load sensing arm 1 is output by a sensor connected with the load sensing arm 1 and is displayed on a display screen in real time, and meanwhile, data such as tension, the moving distance of the sensing arm and the like are collected, processed, stored and the like through a computer.
The pulling and pressing assembly comprises a sleeve 2 connected with a load sensing arm 1, the sleeve 2 is provided with an inner cavity with a downward opening, a first clamping piece 3 and a second clamping piece 4 are arranged in the inner cavity from bottom to top, and the first clamping piece and the second clamping piece are clamping rings with through holes formed in the centers. The pulling and pressing assembly further comprises a sample pressing cover which is provided with a connecting rod 5 movably arranged in the sleeve 2 in a penetrating mode, and the lower end of the connecting rod 5 is connected with a pressing plate 6 located below the sleeve 2. The external diameter of above-mentioned connecting rod 5 and the central through-hole internal diameter looks adaptation of first fastener 3, second fastener 4, the flexible coupling rope 7 (flexible connecting piece promptly) that links to each other with sleeve 2 is installed at the top of connecting rod 5, has cup jointed compression spring 8 on connecting rod 5, and this compression spring 8 is located between first fastener 3 and the second fastener 4, and its lower extreme links to each other with connecting rod 5 is fixed.
The sample table 9 is used for placing dough to be tested and is positioned below the pressure plate 6. In order to increase the contact area of the dough and fully represent the viscosity of the dough, fingerprint-shaped structural layers are arranged on the lower surface of the pressure plate 6 and the upper surface of the sample table 9. The pressure plate 6 and the sample table 9 are made of stainless steel materials, the contact surface layers of the pressure plate and the sample table are carved with hopper-shaped grains by simulating fingerprints, the cross section of a single grain is of a trapezoidal structure with a wide upper part and a small lower part, the lower bottom is 300 mu m, and the upper bottom is 150 mu m, so that the sample table has the advantage of being non-sticky to surfaces. In order to control the deformation amount of the dough, a height limit ring 10 with a height of 10mm is arranged on the sample table, and is arranged concentrically with the connecting rod 5.
In order to keep the temperature and humidity balance in the measuring process, a moisture retention cover 11 is arranged on the outer sides of the sample table 9 and the tension and compression assembly, and a load sensing arm mounting hole is formed in the moisture retention cover 11. A water mist generator 12 is arranged on the outer side of the moisturizing cover 11, and an atomizing pipe of the water mist generator 12 is connected with the moisturizing cover 11; in order to uniformly distribute water mist, two convection fans 13 are arranged in the moisture-preserving cover 11, wherein one convection fan is arranged close to the front side of the top of the left side wall, and the other convection fan is arranged close to the rear side of the bottom of the right side wall; when the humidity sensor 14 in the moisture-keeping cover 11 detects that the humidity in the cover is lower than the set value, the water mist generator 12 works, and the two convection fans 13 are started simultaneously. In addition, install temperature sensor 15 in the heat preservation cover 11, install electric heating wire 16 on the roof and the diapire of heat preservation cover, then install the temperature controller on the tensile tester base, wherein, temperature sensor 15's signal output part links to each other with the signal input part of temperature controller, and the control output part of temperature controller links to each other with electric heating wire 16's control input part. When the temperature in the cover body is lower than a set value, the electric heating wire 16 works; otherwise, the electric heating wire 16 stops operating.
In order to conveniently overhaul and place the dough to be tested, two hinged doors are installed on the front side of the moisturizing cover 11, a placing hole is formed in each hinged door, a rotary-open type hole door is installed above each placing hole through a hinge shaft, the moisturizing cover can be automatically closed in time after the dough to be tested is placed in the moisturizing cover 11, and the temperature and the humidity in the moisturizing cover 11 are kept.
The method for measuring the viscosity of the dough comprises the following steps:
first step, dough preparation: weighing 50g of cereal flour (14% moisture basis), adding appropriate amount of moisture, kneading in a kneading bowl with temperature controlled at 30 deg.C to form dough, ensuring maximum consistency of the dough of 500BU, stopping kneading when the maximum consistency is reached, and taking out the dough for use;
secondly, dough proofing: twisting the prepared dough into strips, placing the strips in a proofing box, wherein the temperature in the proofing box is 30 +/-1 ℃, the humidity is 65-70%, the proofing time of the dough is 135 minutes, and standardized ball kneading and strip kneading are carried out on the dough every 45 minutes;
step three, preparing dough to be detected: quickly twisting the proofed dough into long strips, cutting the long strips into a plurality of doughs to be tested by scissors, and placing the doughs to be tested in a proofing box, wherein each dough to be tested is 30 g;
step four, viscosity measurement:
a. adjusting the temperature in the moisturizing cover 11 to 30 +/-1 ℃ in advance 30 minutes, controlling the humidity to be 65-70%, and simultaneously connecting a tension tester to a computer;
b. kneading the dough to be tested into a ball shape, and placing the dough to be tested into the height limiting ring 10 of the sample table 9 through the placing hole on the moisturizing cover 11;
c. placing the load sensing arm 1 at the highest initial position, and carrying out load zeroing operation, namely setting the load value of a pull-press assembly connected to the load sensing arm 1 to be 0;
d. starting a lifting mechanism to enable the load sensing arm 1 to move downwards at a speed of 1.5cm/s, and enabling the pulling and pressing assembly to move downwards, wherein the pressure plate 6 is firstly contacted with the dough to be detected, the moving speed of the pressure plate is slowed down, and the sleeve 2 still keeps the moving speed of 1.5cm/s, so that the second clamping piece 4 presses the compression spring 8 downwards to deform the compression spring, the gradually increased pressure is transferred to the dough through the pressure plate 6, and the soft connecting rope 7 is folded and bent while the compression spring 8 deforms; after the pressure plate 6 is contacted with the height limiting ring 10, the load sensing arm 1 continuously moves downwards for 5mm and keeps for 10 s;
e. enabling the load sensing arm to move upwards at the speed of 1.5cm/s, enabling the pulling and pressing assembly to move upwards, wherein the sleeve 2 firstly moves upwards, enabling the compression spring 8 and the soft connecting rope 7 to gradually restore to the original state, the pressure plate 6 starts to bear force, the sleeve 2 continuously moves upwards, when the display screen displays that the pulling force value is zero, the pressure plate 6 starts to leave the height-limiting ring 10, the software automatically records the upward moving distance and the pulling force value of the load sensing arm 1 in real time, along with the forced deformation of the dough to be detected, when the dough to be detected is separated from the pressure plate 6 or the sample table 9 or is broken from the middle, the pulling force value on the display screen returns to 0 at the moment, the load sensing arm 1 returns to the initial position, three data of 'maximum viscosity force', 'viscosity length' and 'viscosity energy' are obtained according to a dough viscosity diagram on a computer, and the viscosity measurement of the dough to be detected is finished;
f. and (e) repeating the steps b-e, performing viscosity measurement on the rest dough to be measured, taking the average value of all data as a final measurement result, and finishing the measurement work.
It should be noted that in the description of the present invention, terms of orientation or positional relationship such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 invention.
Claims (9)
1. A dough viscosity tester is characterized in that: comprises that
The tension tester is provided with a load sensing arm driven by a lifting mechanism;
a tension-compression assembly comprising
The sleeve is arranged on the load sensing arm and is provided with an inner cavity with a downward opening, and a first clamping piece and a second clamping piece are arranged in the inner cavity from bottom to top;
the sample gland is provided with a connecting rod movably penetrating through the sleeve, and the lower end of the connecting rod is provided with a pressure plate positioned below the sleeve;
the flexible connecting piece is arranged at the top of the connecting rod and used for connecting the sleeve and the connecting rod;
the compression spring is sleeved on the connecting rod and positioned between the first clamping piece and the second clamping piece, and the lower end of the compression spring is fixedly connected with the connecting rod;
and the sample platform is arranged below the pressure plate and used for placing dough to be tested.
2. The apparatus of claim 1, wherein: the first clamping piece and the second clamping piece are clamping rings with through holes arranged at the centers, and the inner diameters of the through holes are matched with the outer diameter of the connecting rod.
3. The apparatus of claim 1, wherein: and the sample table is provided with a height limit ring for placing dough to be tested.
4. The apparatus of claim 3, wherein: the height limit ring and the connecting rod are arranged concentrically, and the height limit ring is 10 mm.
5. The apparatus of claim 1, wherein: the lower surface of pressure disk and the upper surface of sample platform all are provided with fingerprint form structural layer.
6. The apparatus of claim 1, wherein: the sample platform is provided with the cover of moisturizing with drawing the pressure subassembly outside, it is provided with load response arm mounting hole on the cover to moisturize.
7. The apparatus of claim 6, wherein: a water mist generator is arranged on the outer side of the moisturizing cover, and an atomizing pipe of the water mist generator is connected with the moisturizing cover; the moisturizing cover is also provided with a convection fan and an electric heating wire; the moisture-preserving cover is internally provided with a temperature sensor and a humidity sensor.
8. The apparatus of claim 6, wherein: the front side of moisturizing cover is provided with two and runs from opposite directions the door, it places the hole to have seted up one respectively to run from opposite directions on the door, it is provided with the formula of unscrewing hole door to place on the hole.
9. The apparatus of claim 1, wherein: and a computer interface, a temperature controller and a display screen for displaying the load are arranged on the base of the tension tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121674932.6U CN214894789U (en) | 2021-07-22 | 2021-07-22 | Dough viscosity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121674932.6U CN214894789U (en) | 2021-07-22 | 2021-07-22 | Dough viscosity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214894789U true CN214894789U (en) | 2021-11-26 |
Family
ID=78909412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121674932.6U Active CN214894789U (en) | 2021-07-22 | 2021-07-22 | Dough viscosity tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214894789U (en) |
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2021
- 2021-07-22 CN CN202121674932.6U patent/CN214894789U/en active Active
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