CN201262628Y - Automatic test instrument for leather sensing characteristic parameter - Google Patents
Automatic test instrument for leather sensing characteristic parameter Download PDFInfo
- Publication number
- CN201262628Y CN201262628Y CNU2008200302919U CN200820030291U CN201262628Y CN 201262628 Y CN201262628 Y CN 201262628Y CN U2008200302919 U CNU2008200302919 U CN U2008200302919U CN 200820030291 U CN200820030291 U CN 200820030291U CN 201262628 Y CN201262628 Y CN 201262628Y
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- belt wheel
- screw mandrel
- bearing
- leather
- sleeve
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Abstract
An automatic testing apparatus of leather sense characteristic parameters comprises a flat upper beam and a worktable surface. Precise screw mandrels are installed between a bearing and a bearing seat of the upper beam and a screw mandrel sleeve of the worktable surface. Each precise screw mandrel is provided with a screw mandrel nut that is fixedly provided with a travelling girder; the traveling girder is provided with a displacement sensor, a force transducer and an instrument head connected with the force transducer; the upper end of the worktable surface is provided with a step motor, and the lower end of the worktable surface is provided with a seal box; the seal box is internally provided with a belt pulley transmission device connected with the step motor and a screw mandrel transmission device connected with the precision screw mandrel, and the belt pulley transmission device is connected with the screw mandrel transmission device by a belt. The apparatus collects the force signals of leather by the force transducer and collects the displacement signals of leather by the displacement sensor, two paths of signals are collected and correspond in real time and the quantitative information of leather sense characteristic parameters is outputted through data processing.
Description
Technical field
The utility model relates to a kind of testing tool, is specifically related to a kind of leather sense characteristic automatically testing parameters instrument.
Background technology
The organoleptic attribute of leather be people in long term production, to the sense of touch of leather and the summary of vision combination property, be that staff touches and human eye is watched the sensation concentrated expression of leather, so it is a kind of sense feature.At present, the method for known evaluation leather sense characteristic is to continue to use leather testing staff's subjective inspection method always, and hand is touched soon.Therefore, evaluation result is subjected to the influence of subjective factor.
The theoretical research work starting of China's relevant leather sense characteristic parameter detecting instrument very early, can trace back to the Su Zhenwei professor of Chengdu Univ. of Science ﹠ Technology, the leather tensile strength has been discussed by his system of taking the lead in, stipulated the load extensibility, height bursts apart, collapse brokenly the correlativity of intensity and leather softness, inquire into the utilization fuzzy mathematics and set up the leather softness evaluation system, and succeeded in developing portable leather softness analyzer in 1993, it can test the leather of various process conditions, does not destroy sample, can realize on-line testing, and simple in structure, in light weight, operate simple and easy.But his testing tool does not embody his theory target fully, and parameter is stretched on top of just simple test, and the instrument of the professor of Soviet Union design does not obtain producing in batches.Professor Zhang Xiaolei of Shaanxi Tech Univ has proposed to stretch on the top, compress pliability under the multiple different mechanical state, the mathematical model that richness is relevant, and developed leather softness and richness in 2003 according to its theory and measured grading plant, it can test out that height and two mechanics parameters of compression depth are stretched in the top and be tested out on some fixing top by sensing device stretches highly and the stressed size of compression depth.Comparing with Soviet Union professor's testing tool has a lot of outstanding improvement, but it does not test the mechanics parameter under the leather flexural loading state.At present this instrument is to have trial product and to be widely used among postgraduate and teacher's scientific research and respond well, it is a milestone in the leather sense characteristic parameter testing instrument research process, still belong to advanced testing tool at home and abroad in the like product, be worth on the research thinking of this theoretical foundation and testing tool, continuing to walk.The Li Zhiqiang professor of Sichuan University is a theoretical foundation with the pass of leather softness and its bending strength and compression performance, proposed leather softness method for quantitatively determining and and designed surveying instrument in 2004, it can be measured, and certain puts certain regional pliability on pliability and the leather on the leather, tested leather there is not destruction, test operation and data processing are simple, are convenient to industrial applications.But test parameter is more single, can not comprehensively reflect the organoleptic attribute parameter of leather, and this testing tool does not drop into yet and produces in batches at present.
The research work of external relevant leather sense characteristic parameter testing instrument compares China early.Set up the mathematical model of compression index at B.Lokanadam of India in 1988 etc., studied the relation of compression index and leather softness, adopt easy thickness gauge to measure compression index, but its bright level of significance of related coefficient examination table has only 40%, so its practicality is very poor, but but started the precedent that leather sense characteristic parameter testing instrument is studied.People such as Kellert use for reference the pliability of paper stiffness index analyzer mensuration leather in the paper industry, but the test error of this method is very big, has reached more than 30%.1993, the Alexander of Britain leather technology center (BLC) developed business-like pliability tester (BLCST-300), and the test value of this instrument is that height is stretched on the top of leather under the fixation pressure, does not damage leather in the test process, and is simple to operate.But its weak point is a measurement result only is that the top extends through the spot measurement value in the journey, can not show whole top and extend through journey.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of leather sense characteristic automatically testing parameters instrument that can test out a plurality of supplemental characteristics of leather sense characteristic according to the test specification of leather sense characteristic parameter is provided.
For achieving the above object, the technical solution adopted in the utility model is: comprise the upper beam and the work top that be arranged in parallel, be symmetrically arranged with bearing and bearing seat on the upper beam, be equipped with on the work top and bearing and the corresponding screw mandrel sleeve of bearing seat, accurate screw mandrel is arranged between bearing and bearing seat and the screw mandrel sleeve by last hold-down nut and following hold-down nut, be provided with the feed screw nut on each accurate screw mandrel, and on the feed screw nut, be fixed with trave lling girder, the moving chi of displacement transducer is installed on the trave lling girder, be provided with between upper beam and the work top and the moving corresponding scale of chi of displacement transducer, the measuring head that trave lling girder is provided with force cell and links to each other with force cell, be provided with the stepper motor support column in the work top upper end, stepper motor is fixed on the work top by the stepper motor support column, the lower end of work top is provided with a seal case, be provided with belt wheel gearing that is connected with stepper motor and the spindle gear that is connected with accurate screw mandrel in the sealing casing, the belt wheel gearing links to each other by belt with spindle gear.
Force cell of the present utility model is fixed on the trave lling girder, is provided with slotted eye in the middle of the trave lling girder, and the gauge head mount pad is fixed on the force cell and from slotted eye and stretches out, and measuring head is fixed on the gauge head mount pad; Spindle gear comprises upper bearing plate that is fixed on the work top lower surface and the lower support plate that be arranged in parallel by support column and upper bearing plate, is set with screw mandrel top chock, sleeve, synchronizing jugged belt wheel, axle sleeve and screw mandrel step on the accurate screw mandrel between the upper and lower support plate from top to bottom successively; Also be provided with packing ring between the following hold-down nut of fixing accurate screw mandrel and the screw mandrel step, and on the lower support plate of the end of accurate screw mandrel, also be provided with end cap; Also be set with sleeve and axle sleeve on the accurate screw mandrel between screw mandrel top chock, synchronizing jugged belt wheel and the screw mandrel step; The belt wheel gearing comprises the transmission shaft that is connected with stepper motor, be provided with coupling sleeve between transmission shaft and the work top and be arranged on shaft coupling in the coupling sleeve, transmission shaft is set with belt wheel head bearing and bearing seat, sleeve, synchronizing jugged belt wheel, Upper shaft sleeve and belt wheel lower bearing and bearing seat from top to bottom successively and fixes by the belt wheel clamp nut; The lower surface of work top be provided with the belt wheel upper bearing plate and with the corresponding belt wheel lower support plate of belt wheel upper bearing plate, belt wheel head bearing and bearing seat and belt wheel lower bearing and bearing seat are separately fixed on belt wheel upper bearing plate and the belt wheel lower support plate; Also be provided with rest pad between belt wheel head bearing and bearing seat and belt wheel lower bearing and the bearing seat; Also be provided with packing washer between belt wheel clamp nut and the transmission shaft; Also be provided with sleeve and Lower shaft sleeve on the transmission shaft between belt wheel head bearing and bearing seat, synchronizing jugged belt wheel and belt wheel lower bearing and the bearing seat.
The utility model is through the speed change of belt drive system, the startup of control survey head, stop, the motion requirement of acceleration, deceleration and a certain constant speed.Be connected with force cell on the measuring head, gather the force signal that is subjected to of leather by force cell; By displacement transducer is housed, by the displacement signal of displacement transducer collection leather, the real-time collecting two paths of signals is also corresponding in real time the two, promptly loads on the trave lling girder---the function of distortion, and through the quantitative information of data processing output leather sense characteristic parameter.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is the structural representation of the utility model measuring head;
Fig. 3 is the structural representation of the utility model spindle gear;
Fig. 4 is the structural representation of the utility model belt wheel gearing.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are described in further detail.
Referring to Fig. 1, the utility model comprises upper beam 1 and the work top 9 that be arranged in parallel, be symmetrically arranged with bearing and bearing seat 3 on the upper beam 1, be equipped with on the work top 9 and bearing and bearing seat 3 corresponding screw mandrel sleeves 8, accurate screw mandrel 5 is arranged between bearing and bearing seat 3 and the screw mandrel sleeve 8 by last hold-down nut 2 and following hold-down nut 11, be provided with feed screw nut 6 on each accurate screw mandrel 5, and on feed screw nut 6, be fixed with trave lling girder 4, the moving chi 14 of displacement transducer is installed on the trave lling girder 4, be provided with between upper beam 1 and the work top 9 and the moving chi 14 corresponding scales 17 of displacement transducer, the measuring head 16 that trave lling girder 4 is provided with force cell 18 and links to each other with force cell 18, be provided with stepper motor support column 7 in work top 9 upper ends, stepper motor 15 is fixed on the work top 9 by stepper motor support column 7, the lower end of work top 9 is provided with a seal case 12, be provided with belt wheel gearing 13 that is connected with stepper motor 15 and the spindle gear 10 that is connected with accurate screw mandrel 5 in the sealing casing 12, belt wheel gearing 13 and spindle gear 10 link to each other by belt.
Referring to Fig. 2, force cell 18 of the present utility model is fixed on the trave lling girder 4, is provided with slotted eye 19 in the middle of the trave lling girder 4, and gauge head mount pad 20 is fixed on the force cell 18 and from slotted eye 19 and stretches out, and measuring head 16 is fixed on the gauge head mount pad 20.
Referring to Fig. 3, spindle gear 10 of the present utility model comprises upper bearing plate 21 that is fixed on work top 9 lower surfaces and the lower support plate 25 that be arranged in parallel by support column 22 and upper bearing plate 21, last, lower support plate 21, be set with screw mandrel top chock 23 on the accurate screw mandrel 5 between 25 from top to bottom successively, synchronizing jugged belt wheel 29 and screw mandrel step 28, screw mandrel top chock 23, also be set with sleeve 30 and axle sleeve 27 on the accurate screw mandrel 5 between synchronizing jugged belt wheel 29 and the screw mandrel step 28, also be provided with packing ring 24 between the following hold-down nut 11 of fixing accurate screw mandrel 5 and the screw mandrel step 28, and on the lower support plate 25 of the end of accurate screw mandrel 5, also be provided with end cap 26.
Referring to Fig. 4, belt wheel gearing 13 of the present utility model comprises the transmission shaft 38 that is connected with stepper motor 15, be provided with coupling sleeve 42 between transmission shaft 38 and the work top 9, the lower surface of work top 9 be provided with belt wheel upper bearing plate 41 and with belt wheel upper bearing plate 41 corresponding belt wheel lower support plate 33, belt wheel head bearing and bearing seat 39 and belt wheel lower bearing and bearing seat 32 are separately fixed on belt wheel upper bearing plate 41 and the belt wheel lower support plate 33, also be provided with rest pad 31 between belt wheel head bearing and bearing seat 39 and belt wheel lower bearing and the bearing seat 32, transmission shaft 38 is set with belt wheel head bearing and bearing seat 39 from top to bottom successively, synchronizing jugged belt wheel 37 and belt wheel lower bearing and bearing seat 32 are also fixing by belt wheel clamp nut 35, also be provided with packing washer 34 between belt wheel clamp nut 35 and the transmission shaft 38, belt wheel head bearing and bearing seat 39, also be provided with sleeve 40 and Lower shaft sleeve 36 on the transmission shaft 38 between synchronizing jugged belt wheel 37 and belt wheel lower bearing and the bearing seat 32.
The utility model principle of work is as follows, control signal is transferred to the control platform, the control platform sends motion control commands to stepper motor 15, through belt wheel gearing 13, the speed change of spindle gear 10, control accurate screw mandrel 5, accurate screw mandrel 5 rotations drive trave lling girder 4 and move up and down, measuring head 16 is fixed on the trave lling girder 4, the force cell 18 that measuring head 16 is installed is measured the stressed size of leather sample, be converted to the normal voltage signal by transmitter, send data acquisition system (DAS) to by interface arrangements such as analog to digital conversion.And the moving chi 14 corresponding scales 17 of displacement transducer are installed between upper beam 1 and the work top 9, displacement transducer 14 is followed moving of trave lling girder 4 and is moved, displacement in the mensuration leather sample is stressed how much, be converted to the normal voltage signal by transmitter, send data acquisition system (DAS) to by interface arrangements such as analog to digital conversion.Data acquisition system (DAS) real-time collecting two paths of signals is also corresponding in real time the two, promptly load---the function of distortion, data acquisition system (DAS) is through the quantitative information of data processing output leather sense characteristic parameter, quantitative information can carry out the demonstration of data by the data communication interface of control platform, print functions such as storage.
Claims (10)
1, leather sense characteristic automatically testing parameters instrument, it is characterized in that: comprise the upper beam (1) and the work top (9) that be arranged in parallel, be symmetrically arranged with bearing and bearing seat (3) on the upper beam (1), be equipped with on the work top (9) and bearing and the corresponding screw mandrel sleeve of bearing seat (3) (8), accurate screw mandrel (5) is arranged between bearing and bearing seat (3) and the screw mandrel sleeve (8) by last hold-down nut (2) and following hold-down nut (11), be provided with feed screw nut (6) on each accurate screw mandrel (5), and on feed screw nut (6), be fixed with trave lling girder (4), the moving chi (14) of displacement transducer is installed on the trave lling girder (4), be provided with between upper beam (1) and the work top (9) and the moving corresponding scale of chi (14) (17) of displacement transducer, the measuring head (16) that trave lling girder (4) is provided with force cell (18) and links to each other with force cell (18), be provided with stepper motor support column (7) in work top (9) upper end, stepper motor (15) is fixed on the work top (9) by stepper motor support column (7), the lower end of work top (9) is provided with a seal case (12), be provided with belt wheel gearing (13) that is connected with stepper motor (15) and the spindle gear (10) that is connected with accurate screw mandrel (5) in the sealing casing (12), belt wheel gearing (13) links to each other by belt with spindle gear (10).
2, leather sense characteristic automatically testing parameters instrument according to claim 1, it is characterized in that: said force cell (18) is fixed on the trave lling girder (4), be provided with slotted eye (19) in the middle of the trave lling girder (4), gauge head mount pad (20) is fixed on the force cell (18) and stretches out from slotted eye (19), and measuring head (16) is fixed on the gauge head mount pad (20).
3, leather sense characteristic automatically testing parameters instrument according to claim 1, it is characterized in that: said spindle gear (10) comprises upper bearing plate (21) that is fixed on work top (9) lower surface and the lower support plate (25) that be arranged in parallel by support column (22) and upper bearing plate (21), is set with screw mandrel top chock (23), sleeve (30), synchronizing jugged belt wheel (29), axle sleeve (27) and screw mandrel step (28) on the accurate screw mandrel (5) between the upper and lower support plate (21,25) from top to bottom successively.
4, according to claim 1 or 3 described leather sense characteristic automatically testing parameters instruments, it is characterized in that: also be provided with packing ring (24) between the following hold-down nut (11) of said fixing accurate screw mandrel (5) and the screw mandrel step (28), and on the lower support plate (25) of the end of accurate screw mandrel (5), also be provided with end cap (26).
5, according to claim 1 or 3 described leather sense characteristic automatically testing parameters instruments, it is characterized in that: also be set with sleeve (30) and axle sleeve (27) on the accurate screw mandrel (5) between said screw mandrel top chock (23), synchronizing jugged belt wheel (29) and the screw mandrel step (28).
6, leather sense characteristic automatically testing parameters instrument according to claim 1, it is characterized in that: said belt wheel gearing (13) comprises the transmission shaft (38) that is connected with stepper motor (15), be provided with coupling sleeve (42) between transmission shaft (38) and the work top (9) and be arranged on the interior shaft coupling (31) of coupling sleeve (42), transmission shaft (38) is set with belt wheel head bearing and bearing seat (39) from top to bottom successively, sleeve (40), synchronizing jugged belt wheel (37), Upper shaft sleeve (36) and belt wheel lower bearing and bearing seat (32) are also fixing by belt wheel clamp nut (35).
7, leather sense characteristic automatically testing parameters instrument according to claim 6, it is characterized in that: the lower surface of said work top (9) be provided with belt wheel upper bearing plate (41) and with the corresponding belt wheel lower support plate of belt wheel upper bearing plate (41) (33), belt wheel head bearing and bearing seat (39) and belt wheel lower bearing and bearing seat (32) are separately fixed on belt wheel upper bearing plate (41) and the belt wheel lower support plate (33).
8, leather sense characteristic automatically testing parameters instrument according to claim 6 is characterized in that: also be provided with rest pad (31) between said belt wheel head bearing and bearing seat (39) and belt wheel lower bearing and the bearing seat (32).
9, leather sense characteristic automatically testing parameters instrument according to claim 6 is characterized in that: also be provided with packing washer (34) between said belt wheel clamp nut (35) and the transmission shaft (38).
10, leather sense characteristic automatically testing parameters instrument according to claim 6 is characterized in that: also be provided with sleeve (40) and Lower shaft sleeve (36) on the transmission shaft (38) between said belt wheel head bearing and bearing seat (39), synchronizing jugged belt wheel (37) and belt wheel lower bearing and the bearing seat (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200302919U CN201262628Y (en) | 2008-09-17 | 2008-09-17 | Automatic test instrument for leather sensing characteristic parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200302919U CN201262628Y (en) | 2008-09-17 | 2008-09-17 | Automatic test instrument for leather sensing characteristic parameter |
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| Publication Number | Publication Date |
|---|---|
| CN201262628Y true CN201262628Y (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200302919U Expired - Fee Related CN201262628Y (en) | 2008-09-17 | 2008-09-17 | Automatic test instrument for leather sensing characteristic parameter |
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| CN (1) | CN201262628Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374658A (en) * | 2014-10-10 | 2015-02-25 | 浙江理工大学 | Spring-loaded silk floss quilt compression resilience tester based on displacement sensor |
-
2008
- 2008-09-17 CN CNU2008200302919U patent/CN201262628Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374658A (en) * | 2014-10-10 | 2015-02-25 | 浙江理工大学 | Spring-loaded silk floss quilt compression resilience tester based on displacement sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |