CN112577830A - Multifunctional tobacco shred performance testing device - Google Patents
Multifunctional tobacco shred performance testing device Download PDFInfo
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 127
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 127
- 238000012360 testing method Methods 0.000 title claims abstract description 120
- 238000003825 pressing Methods 0.000 claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 10
- 235000019504 cigarettes Nutrition 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The application discloses a multifunctional tobacco shred performance testing device which comprises a base, a connecting mechanism, a pressing mechanism, a balance weight, a testing barrel and a driving device, wherein the connecting mechanism is arranged on the base; the base comprises a bracket and a base which are fixedly connected, and the pressing mechanism comprises a sliding shaft and a pressing head. One end of the connecting mechanism is fixedly connected with the bracket, and the sliding shaft is connected with the connecting mechanism in a sliding manner; the pressing head is fixedly connected with the first end of the sliding shaft, the testing barrel is arranged on the base, and the driving device is connected with the connecting mechanism; under the condition that the supporting strength of the cut tobacco needs to be tested, the counterweight is arranged at the second end of the sliding shaft, so that the pressing head presses the cut tobacco at constant pressure; under the condition that the elasticity of the cut tobacco needs to be tested, the driving device drives the sliding shaft to drive the pressing head to press the cut tobacco at a constant speed. In the application, the method and the device have the advantages that the constant pressure or the constant pressing speed is applied to the cut tobacco according to needs, the number of testing devices is reduced, the cost is saved, and the operation is simple.
Description
Technical Field
The application relates to the field of testing devices, in particular to a multifunctional tobacco shred performance testing device.
Background
At present, the indexes for evaluating the physical quality of tobacco shreds mainly comprise water content, filling value and structure, and the processing and production of cigarettes can be well guided through the evaluation of the indexes. In the actual production process, however, the cut tobaccos with the same physical indexes are found, and some batches are good in use due to low outage rate in the rolling process and small quantity of removed blanks; the other batches are not good due to high outage rate in the rolling process and large amount of empty heads to be removed; at the same time, we find that the good tobacco shreds are good in elasticity, and the poor tobacco shreds are rigid and inelastic. In addition, in the transportation process of cigarettes, some cigarettes are easy to deform under stress, and some cigarettes are stable in shape, so that the phenomenon occurs because the supporting strength of different batches of tobacco shreds is different.
Therefore, the elasticity and the supporting strength of the tobacco shreds are important parameters for evaluating cigarettes, and the existing detection devices are respectively arranged according to the performance required to be detected, so that the detection tools are various, the cost is high, and the operation difficulty of operators is increased.
Disclosure of Invention
An object of this application is to provide a multi-functional pipe tobacco capability test device, the device can detect the multiple properties of pipe tobacco to reduce the quantity that detects the instrument, practice thrift the cost, reduce operating personnel's the operation degree of difficulty.
The application provides a multifunctional tobacco shred performance testing device which comprises a base, a connecting mechanism, a pressing mechanism, a counterweight, a testing barrel and a driving device, wherein the connecting mechanism is arranged on the base; the base comprises a bracket and a base which are fixedly connected, and the pressing mechanism comprises a sliding shaft and a pressing head; one end of the connecting mechanism is fixedly connected with the bracket, and the sliding shaft is connected with one end of the connecting mechanism far away from the bracket in a sliding manner; the pressing head is fixedly connected with the first end of the sliding shaft; the test barrel is arranged on the base, and the pressing head is positioned above the test barrel and is opposite to the opening of the test barrel; the driving device is connected with the connecting mechanism; under the condition that the supporting strength of the cut tobacco needs to be tested, the counterweight is arranged at the second end of the sliding shaft so as to drive the sliding shaft to drive the pressing head to press the cut tobacco in the testing barrel at constant pressure; under the condition that the elasticity of the cut tobacco needs to be tested, the driving device drives the sliding shaft to drive the pressing head to press the cut tobacco in the testing barrel at a constant speed.
Optionally, the connecting mechanism comprises a connecting rod and a mounting shell, and the driving device comprises a gear; one end of the connecting rod is fixedly connected with the bracket, and the other end of the connecting rod is fixedly connected with the mounting shell; the mounting shell is provided with a through hole, and the sliding shaft penetrates through the through hole; the outer peripheral surface of the sliding shaft is provided with a rack along the axial direction, and the gear is positioned in the mounting shell and meshed with the rack; the gear can drive the rack, so that the rack drives the sliding shaft to move up and down in the through hole.
Optionally, the driving device further comprises a first driving part, a second driving part, a connecting shaft, a limiting seat and a limiting head; the first driving part is fixedly connected with the mounting shell, the output end of the first driving part is fixedly connected with the second driving part, and the output end of the second driving part is fixedly connected with the limiting seat; two ends of the connecting shaft are respectively fixedly connected with the limiting head and the gear; the first driving part drives the second driving part to drive the limiting seat to be in transmission connection with the limiting head so that the second driving part drives the gear to rotate.
Optionally, the limiting head comprises a pin shaft, and the limiting seat is provided with a pin hole; the pin shaft can be inserted into the pin hole.
Optionally, the driving device further includes a first tilt sensor and a second tilt sensor; the first inclination angle sensor is fixedly arranged on the limiting seat, and the second inclination angle sensor is fixedly arranged on the limiting head.
Optionally, the device further comprises a distance measuring sensor, wherein the distance measuring sensor is arranged above the test barrel and is positioned outside the moving route of the pressing head; the distance measuring sensor measures the distance between the tobacco shreds in the testing barrel and the distance measuring sensor.
Optionally, the testing device further comprises a mounting rod, wherein the first end of the mounting rod is fixedly connected with the base, and the second end of the mounting rod extends to be positioned above the testing barrel; the distance measuring sensor is arranged at the second end of the mounting rod.
Optionally, the second end of the mounting rod is provided with an inclined surface, and the inclined surface and the bottom wall of the inner cavity of the testing barrel form a set angle; the inclined plane is towards test bucket one side, and range finding sensor is fixed to be set up on the inclined plane.
Optionally, the pressing mechanism further comprises a weight tray, the weight tray is fixedly arranged at the second end of the sliding shaft, and the counterweight is placed in the weight tray.
Optionally, the bottom of the testing barrel is provided with a blind hole, the base is provided with a protrusion, and the blind hole is in interference fit with the protrusion, so that the testing barrel can be detachably fixed on the base.
Optionally, the shoe further comprises an elastic pad, and the elastic pad is covered on the protrusion.
The application provides a multifunctional tobacco shred performance testing device which comprises a base, a connecting mechanism, a pressing mechanism, a counterweight, a testing barrel and a driving device, wherein the connecting mechanism is arranged on the base; the base comprises a bracket and a base which are fixedly connected, and the pressing mechanism comprises a sliding shaft and a pressing head. One end of the connecting mechanism is fixedly connected with the bracket, and the sliding shaft is connected with one end of the connecting mechanism far away from the bracket in a sliding manner; the pressing head is fixedly connected with the first end of the sliding shaft; the test barrel is arranged on the base, and the pressing head is positioned above the test barrel and is opposite to the opening of the test barrel; the driving device is connected with the connecting mechanism; under the condition that the supporting strength of the cut tobacco needs to be tested, the counterweight is arranged at the second end of the sliding shaft so as to drive the sliding shaft to drive the pressing head to press the cut tobacco in the testing barrel at constant pressure; under the condition that the elasticity of the cut tobacco needs to be tested, the driving device drives the sliding shaft to drive the pressing head to press the cut tobacco in the testing barrel at a constant speed. In the application, in a testing device, constant pressure can be selectively applied to the cut tobacco according to the requirement of testing performance, so that the supporting strength of the cut tobacco is tested; or a constant pressing speed is applied to the cut tobacco, so that the elasticity of the cut tobacco is tested, the number of testing devices is reduced, the cost is saved, and the operation difficulty of operators is reduced.
Drawings
Fig. 1 is a schematic view of an overall structure of a multifunctional tobacco shred performance testing device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a driving device of the multifunctional tobacco shred performance testing device provided by the embodiment of the application;
fig. 3 is a partially enlarged view of the point N in fig. 2.
Description of the reference numerals
100-base, 110-support, 120-base, 200-connecting mechanism, 210-connecting rod, 220-mounting shell, 300-pressing mechanism, 310-sliding shaft, 320-rack, 330-pressing head, 340-weight tray, 400-counterweight, 500-testing barrel, 600-driving device, 610-gear, 620-first driving part, 630-second driving part, 640-connecting shaft, 650-limiting seat, 660-limiting head, 700-distance measuring sensor, 800-mounting rod and 810-inclined plane.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the cigarette manufacturing process, the elasticity and the supporting strength of the cut tobacco used for manufacturing the cigarette are important parameters for judging the quality of the cigarette.
Wherein, the calculation formula of the elasticity E of the tobacco shreds is as follows:
E＝(L1-L0)/L0equation 1
In formula 1, E represents the elasticity of tobacco shreds, L0Expressing the thickness L of the tobacco shreds after the tobacco shreds are uniformly pressed for a first set time1Representing the thickness of the cut tobacco after the cut tobacco is released for a second set time after being pressed.
The calculation formula of the supporting strength Q of the tobacco shreds is as follows:
Q＝H0/H1equation 2
In the formula, Q represents the supporting strength of the tobacco shred, H0Representing the initial thickness, H, of the cut tobacco before it is pressed1Which represents the thickness of the cut tobacco after being pressed by a set pressure for a set time.
According to the formula, in the process of testing different performances of the cut tobacco, forces in different states need to be applied to the cut tobacco. When the elasticity of the cut tobacco is tested, the cut tobacco needs to be pressed at a constant speed; when the supporting strength of the cut tobacco is tested, the cut tobacco needs to be pressed under equal pressure.
As shown in fig. 1, 2 and 3, the multifunctional tobacco shred performance testing device provided by the embodiment of the application includes a base 100, a connecting mechanism 200, a pressing mechanism 300, a counterweight 400, a testing barrel 500 and a driving device 600. Wherein the base 100 comprises a bracket 110 and a base 120 fixedly connected, and the pressing mechanism 300 comprises a sliding shaft 310 and a pressing head 330.
Specifically, one end of the connecting mechanism 200 is fixedly connected with the bracket 110, and the sliding shaft 310 is slidably connected with one end of the connecting mechanism 200 away from the bracket 110; the pressing head 330 is fixedly coupled to the first end of the sliding shaft 310. The testing barrel 500 is arranged on the base 120, and the pressing head 330 is positioned above the testing barrel 500 and is opposite to the opening of the testing barrel 500; the driving device 600 is connected to the connection mechanism 200.
Under the condition that the supporting strength of the cut tobacco needs to be tested, the counterweight 400 is arranged at the second end of the sliding shaft 310 so as to drive the sliding shaft 310 to drive the pressing head 330 to press the cut tobacco in the testing barrel 500 at a constant pressure. In the case of the elasticity of the cut tobacco to be tested, the driving device 600 drives the sliding shaft 310 to drive the pressing head 330 to press the cut tobacco in the test bucket 500 at a constant speed.
The multifunctional tobacco shred performance testing device provided by the embodiment of the application can select equal pressure or press tobacco shreds at a constant speed according to the requirement of testing performance. Specifically, constant pressure is applied to the cut tobacco by using a counterweight, so that the support strength of the cut tobacco is tested; and applying a constant pressing speed to the cut tobacco by using a driving device so as to test the elasticity of the cut tobacco. The two performances can be tested by using one testing device, the number of testing devices is reduced, the cost is saved, and the operation difficulty of operators is reduced.
Referring to fig. 2, in an alternative embodiment, the connecting mechanism 200 includes a connecting rod 210 and a mounting housing 220, and the driving device 600 includes a gear 610; one end of the connecting rod 210 is fixedly connected with the bracket 110, and the other end of the connecting rod 210 is fixedly connected with the mounting shell 220; a through hole is formed in the mounting case 220, and the sliding shaft 310 passes through the through hole; the outer circumferential surface of the sliding shaft 310 is provided with a rack 320 along the axial direction, and the gear 610 is positioned in the mounting case 220 and meshed with the rack 320; the gear 610 can drive the rack 320, so that the rack 320 drives the sliding shaft 310 to move up and down in the through hole.
In this embodiment, since the rotation speed of the gear 610 can be controlled, when the tobacco shreds are required to be pressed at a constant speed by the pressing head 330, only the gear 610 needs to be ensured to rotate at a constant speed, and at this time, the gear 610 can drive the rack 320 to drive the sliding shaft 310 to slide downwards at a constant speed through the engagement between the gear 610 and the rack 320, so that the tobacco shreds are pressed at a constant speed by the pressing head 330 fixedly connected to the first end of the sliding shaft 310. Those skilled in the art will appreciate that the speed and time for pressing the cut tobacco at a constant speed can be set according to the testing requirements. In this embodiment, the gear 610 is engaged with the rack 320, so that the sliding shaft 310 moves at a constant speed, and the structure is simple and the processing is easy.
Referring to fig. 2 and 3, in an alternative embodiment, the driving device 600 further includes a first driving part 620, a second driving part 630, a connecting shaft 640, a limiting seat 650 and a limiting head 660; the first driving part 620 is fixedly connected with the mounting shell 220, the output end of the first driving part 620 is fixedly connected with the second driving part 630, and the output end of the second driving part 630 is fixedly connected with the limiting seat 650; two ends of the connecting shaft 640 are respectively fixedly connected with the limiting head 660 and the gear 610; the first driving member 620 drives the second driving member 630 to drive the limiting seat 650 and the limiting head 660 to be in transmission connection, so that the second driving member 630 drives the gear 610 to rotate.
Specifically, the first driving part 620 drives the second driving part 630 to move, so that the second driving part 630 drives the limiting seat 650 and the limiting head 660 to be in transmission connection; the second driving member 630 drives the limiting base 650 to rotate, and the limiting base 650 drives the gear 610 to rotate through the limiting head 660. It will be appreciated by those skilled in the art that the first driving part 620 may be a pneumatic cylinder or a hydraulic cylinder, etc., and in this embodiment, is preferably driven by a pneumatic cylinder. Similarly, the second driving member 630 may be a motor, an air cylinder, or the like, and in this embodiment, a motor is preferable.
In this embodiment, in the case that the pressing head 330 is required to press the cut tobacco at a constant pressure, the cylinder driving motor drives the limiting seat 650 to be away from the limiting head 660, so that the transmission connection between the limiting seat 650 and the limiting head 660 is released. At this time, the weight 400 is placed on the second end of the sliding shaft 310, and it can be understood by those skilled in the art that the weight of the weight 400 can be selected according to the pressure required by the test. In this case, the sliding shaft 310 is subjected only to the pressure given by the counterweight 400, so that the sliding shaft 310 brings the pressing head 330 to press the cut tobacco under the condition of being subjected only to this constant pressure. Under the condition that the pressing head 330 is required to press the cut tobacco at a constant speed, the air cylinder driving motor drives the limiting seat 650 to be close to the limiting head 660, and the limiting seat 650 and the limiting head 660 are in transmission connection. At this time, the motor drives the limiting seat 650 to rotate, the limiting seat 650 drives the limiting head 660 to rotate, one end of the connecting rod 210 is fixedly connected with the limiting head 660, and the other end of the connecting rod is fixedly connected with the gear 610, so that the rotation of the limiting head 660 can drive the gear 610 to rotate. In this process, the rotation speed of the gear 610 may be determined according to the rotation speed of the motor, so that the motor only needs to output at a constant rotation speed, so that the gear 610 rotates at a constant rotation speed, and the rack 320 engaged with the gear 610 drives the sliding shaft 310 to move downward at a constant speed under the driving of the gear 610, so that the pressing head 330 presses the cut tobacco at a constant speed. It will be appreciated by those skilled in the art that the rotation speed of the gear 610 can be adjusted by a motor, so that the speed of the pressing head 330 for pressing the cut tobacco at a constant speed can be adjusted to adapt to different tests.
In an alternative embodiment, the spacing head 660 comprises a pin, and the spacing base 650 is provided with a pin hole; when the limiting seat 650 and the limiting head 660 are in transmission connection, the pin shaft can be inserted into the pin hole. When the transmission connection between the limiting seat 650 and the limiting head 660 is released, the pin shaft is withdrawn from the pin hole. The pin shaft and the pin hole are selected because the pin shaft and the pin hole are simple to process, are quick to butt, are of a typical transmission structure and have excellent transmission performance. It will be appreciated by those skilled in the art that the cross-sectional shapes of the pin and the pin hole may be non-circular shapes such as triangle, quadrangle or pentagon, and in this embodiment, rectangular shapes are preferred.
In an alternative embodiment, the driving device 600 further comprises a first tilt sensor and a second tilt sensor; the first tilt sensor is fixedly arranged on the limiting seat 650, and the second tilt sensor is fixedly arranged on the limiting head 660. In the process of butt-joint matching of the limiting seat 650 and the limiting head 660, in order to ensure that the limiting seat 650 can be smoothly sleeved into the limiting head 660, the inclination angles of the limiting seat 650 and the limiting head 660 should be the same, so that inclination angle sensors are arranged on both the limiting seat 650 and the limiting head 660 to ensure the accuracy of each butt-joint.
Specifically, before each butt joint, the motor drives the limiting seat 650 to rotate, so that the inclination angle of the first inclination angle sensor is equal to that of the second inclination angle sensor, after the inclination angles of the first inclination angle sensor and the second inclination angle sensor are equal, the motor stops rotating, and then the cylinder driving motor drives the limiting seat 650 to be sleeved into the limiting head 660, so that transmission connection between the limiting seat 650 and the limiting head 660 is completed.
Referring to fig. 1, in an alternative embodiment, the multifunctional tobacco shred performance testing apparatus in this embodiment further includes a distance measuring sensor 700, the distance measuring sensor 700 is disposed above the testing barrel 500, and the distance measuring sensor 700 is located outside the moving route of the pressing head 330; the distance measuring sensor 700 measures the distance of the cut tobacco in the test tub 500 from the distance measuring sensor 700. It can be known from the above formula 1 and formula 2 that when the support strength and elasticity of the cut tobacco are checked, the thickness of the cut tobacco in the test bucket 500 under different states needs to be measured, and through manual measurement, not only the working strength is high, but also measurement errors are easy to occur. The thickness may be calculated by the distance of the test cut tobacco from the distance measuring sensor 700 at the upper portion in the test tub 500. Therefore, a distance measuring sensor 700 is further provided in this embodiment, so that the height of the cut tobacco in the test bucket 500 can be automatically measured. Since the distance measuring sensor 700 needs to avoid the moving track of the pressing head 330 in this embodiment, the distance measuring sensor 700 needs to be arranged outside the testing barrel 500, and after the distance measuring sensor 700 is arranged in this way, the measured size is the inclined distance from the tobacco shred to the testing sensing test point, and the required size needs to be obtained by performing trigonometric function transformation. The trigonometric function transformation is a common calculation method, which is not described in detail here.
With continued reference to fig. 1, in an alternative embodiment, the multifunctional tobacco shred performance testing apparatus in this embodiment further includes a mounting rod 800, a first end of the mounting rod 800 is fixedly connected to the base 120, and a second end of the mounting rod 800 extends to be located above the testing barrel 500; the distance measuring sensor 700 is provided at the second end of the mounting rod 800. In this embodiment, the installation rod 800 is provided to facilitate installation and fixation of the distance measuring sensor, so that the distance measuring sensor is easy and simple to install.
With continued reference to fig. 1, in an alternative embodiment, the second end of the mounting rod 800 is provided with an inclined surface 810, and the inclined surface 810 forms a set angle with the bottom wall of the inner cavity of the testing barrel 500; the inclined surface 810 faces the side of the test bucket 500, and the distance measuring sensor 700 is fixedly installed on the inclined surface 810. In order to ensure that the distance measuring sensor can detect the distance of any point at the bottom of the receiving cavity of the test bucket 500, the distance measuring sensor 700 is installed on the installation pole 800 at a set angle. In order to facilitate the installation of the sensor, the installation rod 800 is provided with an inclined plane 810, and the inclined angle of the inclined plane 810 is determined by that the distance measurement sensor can measure any point at the bottom of the accommodating cavity of the test bucket 500. It will be understood by those skilled in the art that the distance measuring sensor 700 can measure the distance to any point at the bottom of the receiving cavity of the testing bucket 500, which indicates that the distance measuring sensor can measure any height of the cut tobacco in the testing bucket 500. In the embodiment, the original direct measurement vertical distance is converted into the inclined linear distance between the distance measurement sensor 700 and the tobacco shred, the vertical distance is obtained according to the trigonometric function relationship, and the height of the tobacco shred is converted, so that the structure of the distance measurement assembly is greatly simplified, and the universality is enhanced.
With continued reference to fig. 1, in an alternative embodiment, the hold down mechanism 300 further comprises a weight tray 340, the weight tray 340 being fixedly disposed at the second end of the sliding shaft 310, the counterweight 400 being disposed in the weight tray 340. In this embodiment, the diameter of the weight tray 340 is larger than the diameter of the sliding shaft 310, so that the weight can be placed in the weight tray 340, the weight can be protected, the weight can be stably placed, the volume of the used weight can be increased, and the application range of the device can be increased.
In an alternative embodiment, the bottom of the testing barrel 500 is provided with a blind hole, and the base 120 is provided with a protrusion, and the blind hole is in interference fit with the protrusion, so that the testing barrel 500 can be detachably fixed on the base 120. In the continuous and repeated testing process, the testing barrel 500 can be frequently taken from the base 120, and since the opening direction of the testing barrel 500 needs to be opposite to the pressing head 330 every time of placement, in order to ensure the accuracy of the placement position every time, a protrusion is arranged on the base 120 for positioning. Meanwhile, due to the interference fit between the testing barrel 500 and the base 120, the testing barrel 500 can be ensured not to shake in the whole testing process, so that the reliability of the testing data is increased.
In an alternative embodiment, the elastic pad is covered on the protrusion. Through setting up the cladding on the arch, can reduce test bucket 500 and get the wearing and tearing of putting the in-process to test bucket 500. It will be appreciated by those skilled in the art that the resilient pad material may require some flexibility, such as rubber.
It will also be understood by those skilled in the art that the testing apparatus may be moved rapidly by a motor during the movement of the pressing head 330 from the initial position to the starting pressing position during use. When the tobacco shreds are moved to the pressing position of the pressing head 330, if the elasticity of the tobacco shreds is tested, the pressing head 330 is required to press the tobacco shreds at a set speed, and at this time, the rotating speed of the motor is adjusted to enable the pressing head 330 to press the tobacco shreds at the set speed. After the pressing is completed, the motor drives the pressing head 330 to rapidly ascend to the initial position so as to ensure that the distance measured by the distance measuring sensor 700 is accurate.
When the supporting strength of the tobacco shreds needs to be tested, the pressing head 330 is required to press the tobacco shreds at a constant pressure at the moment, so that the motor stops driving, a weight 400 with a set weight is placed on the weight tray 340, after the pressing head 330 obtains the set pressure, the motor is further driven by the air cylinder, the limiting seat 650 connected with the motor is quickly separated from the limiting head 660, and at the moment, the pressing head 330 presses the tobacco shreds at the constant pressure under the action of the weight 400.
In the process, the gear 610 is meshed with the rack 320, and the rack 320 drives the gear 610 to rotate in the sliding process of the sliding shaft 310, so that an included angle is formed between the limiting seat 650 and the limiting head 660, therefore, after the pressing is completed, the pressing head 330 quickly returns to the initial position, the motor needs to firstly drive the limiting seat 650 so that the inclination angles of the limiting seat 650 and the limiting head 660 are the same, the cylinder drives the motor again so as to drive the limiting seat 650 fixedly connected with the county level to be sleeved in the limiting head 660, the transmission connection between the limiting seat 650 and the limiting head 660 is completed, and then, under the driving of the motor, the pressing head 330 quickly returns to the initial position so as to conveniently measure the height of the cut tobacco through distance sensing.
In an optional embodiment, the multifunctional tobacco shred performance testing device further comprises an operation panel and a central processing unit. Wherein, the operation panel is fixedly connected with the bracket 110, and the central processing unit is respectively electrically connected with the operation panel, the motor, the cylinder and the distance measuring sensor 700. As will be understood by those skilled in the art, the operation panel may be a touch screen or a key, and in this embodiment, a touch screen is preferred, and the operator can input the weight of each sample through the touch screen, so that the operation is simple and convenient. An operator can input the performance to be tested through the operation panel, and the central processing unit controls the motor, the air cylinder and the distance measuring sensor to act and calculate through the received parameters.
The use method of the multifunctional tobacco shred performance testing device in the embodiment of the application is described by specific examples as follows:
the cut tobacco to be tested with the mass M is taken and put into the testing barrel 500, and the testing barrel 500 is placed on the base 120, and the opening direction of the testing barrel 500 is opposite to the pressing head 330.
When the supporting strength of the cut tobacco needs to be measured, the test mode is set to be the supporting strength test mode through the touch screen. The central processing unit controls the driving mechanism to drive the pressing head 330 to move downwards, the tobacco shreds in the testing barrel 500 are pressed for a time period of T1 at a constant flattening pressure F1, and the tobacco shreds are pressed for one time, specifically, the driving motor is controlled to drive the sliding shaft 310 to move downwards for a time period of T1 through the gear 610 and the rack 320, so that the tobacco shreds in the testing barrel 500 are flattened. The initial height of the cut tobacco is measured by the distance measuring sensor 700, and the distance L1 between the cut tobacco and the pressing head 330 is acquired by the central processor.
After the primary pressing is finished, the tobacco shred sample in the testing barrel 500 is pressed for a time period of T2 at a pressing pressure F2, and secondary pressing is carried out. Specifically, the piston rod of the adjusting cylinder is controlled to be retracted, the limiting head 660 on the output shaft of the driving motor is separated from the limiting seat 650 on the rotating shaft, so that the constant flattening pressure F2 is obtained for a time period of T2, and the size of the flattening pressure F2 is adjusted by the counterweight 400.
Wherein F1 is (0.98 +/-0.10) N, and T1 is (10.0 +/-0.5) s; f2 is (50. + -. 0.10) N, T2 is (35. + -. 0.5) s, M1 is (30.0. + -. 0.1) g.
At the end of the primary and secondary pressing, the pressing head 330 moves up rapidly, and the distance from the distance measuring sensor 700 to the upper end of the tobacco sample is measured. Specifically, the time duration end time of T2, first tilt sensor and second tilt sensor send the inclination angle signal of spacing seat 650 and spacing head 660 to central processing unit, central processing unit calculates behind the inclination that obtains spacing seat 650 and spacing head 660, control driving motor is rotatory, make spacing seat 650 and spacing head 660 inclination unanimous, and control adjustment cylinder driving motor, make during spacing seat 650 embolias spacing head 660, accomplish the transmission connection of spacing seat 650 and stop collar, central processing unit control motor rotates, the motor drives sliding shaft 310 and shifts up. The distance measuring sensor 700 transmits the measured distance signal to the central processing unit, the central processing unit processes the distance signal to obtain the primary pressed height H0 and the secondary pressed height H1 according to the tobacco shred sample, and the central processing unit calculates the supporting strength of the tobacco shred.
When the elasticity of the cut tobacco is measured, the test mode is set to be the support strength test mode through the touch screen, and in the process, the limiting seat 650 and the limiting head 660 are always in a transmission connection state. The pressing time of the pressing head 330 is set to be T3, the pressed height of the cut tobacco at the pressing end time is set to be H3, the pressure release time of the cut tobacco after the pressing end is set to be T4, and the pressure release height of the cut tobacco is set to be H4.
Wherein, H3 is (35.0 +/-0.1) mm; t3 is (10.0 +/-0.5) s; t4 is (20.0. + -. 0.5) s, M is (30.0. + -. 0.1) g.
Cut tobacco of mass M is weighed and placed in the test bucket 500. The central processor is used for timing according to the pulse signal output by the clock module and controlling the driving mechanism to start, so that the tobacco shred pressing mechanism 300 is controlled to move downwards at a constant speed for T3 time, the pressing head 330 presses the tobacco shreds in the testing barrel 500 to a pressed height H3, and the pressing head 330 moves and resets; after waiting for a time period of T4, a pressure relief height H4 is obtained.
And measuring the distance between the pressure height H3 and the upper end surface of the tobacco shred sample by using the distance measuring sensor 700 at the ending time of the pressure releasing time T4, transmitting a measured distance signal to central processing by using the distance measuring sensor 700, processing by using a central processing unit to obtain the pressure height H3 and the pressure releasing height H4 of the tobacco shred sample, and calculating by using the central processing unit to obtain the elasticity of the tobacco shred.
The construction, features and functions of the present application are described in detail in the embodiments illustrated in the drawings, but the present application is not limited to the embodiments illustrated in the drawings, and all equivalent embodiments modified or equivalent according to the concept of the present application are within the scope of the present application.
Claims (10)
1. A multifunctional tobacco shred performance testing device is characterized by comprising a base, a connecting mechanism, a pressing mechanism, a counterweight, a testing barrel and a driving device; the base comprises a bracket and a base which are fixedly connected, and the pressing mechanism comprises a sliding shaft and a pressing head;
one end of the connecting mechanism is fixedly connected with the bracket, and the sliding shaft is connected with one end of the connecting mechanism far away from the bracket in a sliding manner; the pressing head is fixedly connected with the first end of the sliding shaft; the test barrel is arranged on the base, and the pressing head is positioned above the test barrel and is opposite to the opening of the test barrel; the driving device is connected with the connecting mechanism;
under the condition that the supporting strength of the cut tobacco needs to be tested, the counterweight is arranged at the second end of the sliding shaft so as to drive the sliding shaft to drive the pressing head to press the cut tobacco in the testing barrel at a constant pressure; and under the condition that the elasticity of the cut tobacco needs to be tested, the driving device drives the sliding shaft to drive the pressing head to press the cut tobacco in the testing barrel at a constant speed.
2. The multifunctional tobacco shred performance testing device according to claim 1, wherein the connecting mechanism comprises a connecting rod and a mounting shell, and the driving device comprises a gear;
one end of the connecting rod is fixedly connected with the bracket, and the other end of the connecting rod is fixedly connected with the mounting shell; the mounting shell is provided with a through hole, and the sliding shaft penetrates through the through hole; the outer peripheral surface of the sliding shaft is provided with a rack along the axial direction, and the gear is positioned in the mounting shell and meshed with the rack;
the gear can drive the rack, so that the rack drives the sliding shaft to move up and down in the through hole.
3. The multifunctional tobacco shred performance testing device according to claim 2, wherein the driving device further comprises a first driving part, a second driving part, a connecting shaft, a limiting seat and a limiting head;
the first driving part is fixedly connected with the mounting shell, the output end of the first driving part is fixedly connected with the second driving part, and the output end of the second driving part is fixedly connected with the limiting seat; two ends of the connecting shaft are respectively and fixedly connected with the limiting head and the gear;
the first driving part drives the second driving part to drive the limiting seat to be in transmission connection with the limiting head, so that the second driving part drives the gear to rotate.
4. The multifunctional tobacco shred performance testing device according to claim 3, wherein the limiting head comprises a pin shaft, and the limiting seat is provided with a pin hole; the pin shaft can be inserted into the pin hole.
5. The multifunctional tobacco shred performance testing device according to claim 3, wherein the driving device further comprises a first inclination sensor and a second inclination sensor;
the first inclination angle sensor is fixedly arranged on the limiting seat, and the second inclination angle sensor is fixedly arranged on the limiting head.
6. The multifunctional tobacco shred performance testing device according to claim 1, further comprising a distance measuring sensor, wherein the distance measuring sensor is arranged above the testing barrel and is positioned outside a moving route of the pressing head; the distance measuring sensor measures the distance between the tobacco shreds in the testing barrel and the distance measuring sensor.
7. The multifunctional tobacco shred performance testing device according to claim 6, further comprising a mounting rod, wherein a first end of the mounting rod is fixedly connected with the base, and a second end of the mounting rod extends to be positioned above the testing barrel; the ranging sensor is arranged at the second end of the mounting rod.
8. The multifunctional tobacco shred performance testing device according to claim 7, wherein the second end of the mounting rod is provided with an inclined surface, and the inclined surface and the bottom wall of the inner cavity of the testing barrel form a set angle; the inclined plane faces one side of the testing barrel, and the distance measuring sensor is fixedly arranged on the inclined plane.
9. The device for testing the performance of the multifunctional tobacco shreds according to any one of claims 1-8, wherein the pressing mechanism further comprises a weight tray fixedly arranged at the second end of the sliding shaft, and the counterweight is placed in the weight tray.
10. The multifunctional tobacco shred performance testing device according to any one of claims 1 to 8, wherein a blind hole is formed in the bottom of the testing barrel, a protrusion is arranged on the base, and the blind hole is in interference fit with the protrusion, so that the testing barrel can be detachably fixed on the base.
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