CN102778400A - Leather performance index testing instrument - Google Patents

Leather performance index testing instrument Download PDF

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Publication number
CN102778400A
CN102778400A CN2012102414727A CN201210241472A CN102778400A CN 102778400 A CN102778400 A CN 102778400A CN 2012102414727 A CN2012102414727 A CN 2012102414727A CN 201210241472 A CN201210241472 A CN 201210241472A CN 102778400 A CN102778400 A CN 102778400A
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CN
China
Prior art keywords
leather
gauge head
test
performance index
clamping device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012102414727A
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Chinese (zh)
Inventor
荆学东
吉涛
綦法群
康思闻
赵世清
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Shanghai Institute of Technology
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Shanghai Institute of Technology
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Publication date
Application filed by Shanghai Institute of Technology filed Critical Shanghai Institute of Technology
Priority to CN2012102414727A priority Critical patent/CN102778400A/en
Publication of CN102778400A publication Critical patent/CN102778400A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a leather performance index testing instrument. The leather performance index testing instrument comprises a stepping motor, a speed reducer, a translation block, a lead screw, a shaft coupler, a clamping device, a testing head, a worktable, a displacement sensor and a pressure sensor, wherein the clamping device is fixedly connected on a bottom plate of a rack by the worktable; the testing head is arranged on the clamping device; the pressure sensor is arranged at the upper end of the testing head and is arranged on the translation block by a pressure sensor mounting table; the translation block is in transmission connection with a stepping motor fixed at the upper end of the rack by the lead screw and the shaft coupler; the side of the translation block is fixedly connected with a reading head; the displacement sensor corresponding to the reading head is arranged on the side surface of the rack; and the stepping motor, the pressure sensor, the displacement sensor and the reading head are connected with a control system. The leather performance index testing instrument has a simple structure and is flexible to use; the reliability of a leather performance index test is guaranteed, an on-line test of the leather performance index is realized, and the requirements on a specific test also can be met, the high-efficiency requireemnts on industrial production furtehr can be met and requireemnts of the industrial production can be met.

Description

Leather testing performance index appearance
Technical field
The present invention relates to a kind of leather testing performance index appearance, especially a kind of computer based and can realize the automatic test appearance that multiple leather performance index are measured.
Background technology
The leather performance index are important indicators of reflection leather quality quality.In actual production, estimating the leather quality quality at present mainly is to adopt more traditional method, promptly utilizes experienced reviewer to remove the identification leather quality through sense organs such as touches.Though this method is convenient, subjectivity is too strong, and there is certain difference in reviewer's personal experience, and evaluation result receives factor affecting such as working environment, mood easily simultaneously.
At present, the theoretical research of leather testing performance index appearance has had certain basis, but the model machine of leather testing performance index appearance designs, manufacture view also is in the starting stage.Leather softness and richness measurement grading plant like the people such as professor Zhang Xiaolei of Shaanxi Tech Univ design can not satisfy the requirement of leather testing performance index fully.
Summary of the invention
The present invention will provide a kind of leather testing performance index appearance, and be used for multiple leather performance index and realize comparatively objectively measuring, and simple in structure, be convenient to on-line operation.
For realizing above-mentioned purpose; Technical scheme of the present invention is: a kind of leather testing performance index appearance; Comprise kinematic system, leather parameter test system, control system and frame, be characterized in: kinematic system comprises stepper motor, speed reduction unit, translation piece, leading screw, shaft coupling; The leather parameter test system comprises fixedly clamping device, gauge head, worktable, displacement transducer, the pressure transducer of leather; Clamping device is connected on the base plate of frame through stationary table; Be provided with gauge head above the clamping device; Pressure transducer is equipped with in gauge head upper end, and pressure transducer is installed on the translation piece through the pressure transducer erecting bed, and the translation piece is in transmission connection through leading screw and shaft coupling and the stepper motor that is fixed on the frame; Translation piece side is fixedly connected with read head, and be equipped with and the corresponding displacement transducer of read head the frame side; Stop means is equipped with in the frame upper and lower position, and stepper motor, pressure transducer and displacement transducer and read head are connected with the control box of control system.
When being used for the test of leather bending property; Test board in the leather clamping device is the crooked test platform; Used gauge head is crooked gauge head, wherein be provided with in the crooked test platform one be used to place the groove of the leather of surveying volume, crooked gauge head is the crooked gauge head that has the rectangle base plate.
Being used for leather pushes up when stretching performance test; Test board in the leather clamping device 12 is stretched test board for the top; Used gauge head is stretched gauge head for the top, and wherein the annulus that is provided with a boring in the test board is stretched on the top, and leather is clipped in the top and stretches between test board and the worktable; And be screwed the top and stretch test board and worktable, it is that the end is that gauge head is stretched on smooth hemispheric top that gauge head is stretched on the top.
When being used for the test of leather compression performance; Test board in the leather clamping device 12 is the compression verification platform; Used gauge head is the compression gauge head, and wherein the surface of compression verification platform is smooth plectane, and leather is placed on the compression verification platform; And being screwed compression verification platform and worktable, the compression gauge head is the compression gauge head that has circular bottom plate.
Stop means comprises upper limit position switch, lower position switch, null pick-up; Upper limit position switch and null pick-up are installed in the top of frame; Lower position switch is installed in the bottom of frame, and null pick-up is made up of sensor and informing sheet, and sensor is contained in upper rack; And corresponding with upper limit position switch, informing sheet is fixed on the translation piece.
Frame comprises base plate, fixed station, tripod; Wherein tripod is made up of two blocks of tripod side plates, a tripod vertical plate, a tripod base plate; Fixed station is fixed on the base plate, and tripod is fixed on the fixed station, mounted movable system on the frame vertical plate of tripod.
The invention has the beneficial effects as follows: have in the clamping device of the present invention that three kinds of formal testing platforms and gauge head are respectively corresponding to be used, can be respectively leather be carried out that bending, top are stretched, compression verification.The grating chi is used to measure the deflection of leather; Pressure transducer is used to measure the force value under the certain distortion of leather; Controller in the control system can be analyzed data automatically; And according to specific algorithm the data of sensor acquisition are handled, and shown last measurement result by display, the normal operations worker can both onlinely carry out testing performance index to leather in view of the above.
The present invention is simple in structure, uses flexibly, has guaranteed the reliability to the leather testing performance index, has realized the on-line testing to the leather performance index, also can satisfy the requirement of fc-specific test FC, satisfies industrial high efficiency requirement, meets industrial requirement.
Description of drawings
Fig. 1 is an one-piece construction schematic perspective view of the present invention;
Fig. 2 is a leather bending property test structure synoptic diagram of the present invention;
Fig. 3 is that the performance test structural representation is stretched on leather of the present invention top;
Fig. 4 is a leather compression performance test structure synoptic diagram of the present invention;
Fig. 5 is stop means of the present invention and null pick-up scheme of installation;
Fig. 6 is a rack construction synoptic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
As shown in Figure 1, leather testing performance index appearance of the present invention comprises kinematic system, leather parameter test system, control system and frame etc.
Kinematic system comprises stepper motor 3, speed reduction unit 4, translation piece 7, leading screw 6, shaft coupling 5; The leather parameter test system comprises fixedly clamping device 12, gauge head 11, worktable 13, displacement transducer 8, read head 9, the pressure transducer 10 of leather; Clamping device 12 is fixedly connected on the base plate 16 of frame through worktable 13; Be provided with gauge head 11 above the clamping device 12; Pressure transducer 10 is equipped with in gauge head 11 upper ends, and pressure transducer 10 is installed on the translation piece 7 through pressure transducer erecting bed 15, and translation piece 7 is in transmission connection through leading screw 6 and shaft coupling 5 and the stepper motor 3 that is fixed on the frame upper end; Translation piece 7 sides are fixedly connected with read head 9, and be equipped with and read head 9 corresponding displacement transducers 8 the frame side; Stepper motor 3, pressure transducer 10 and displacement transducer 8 and read head 9 are connected with the control box 2 of control system.
Kinematic system comprises that the stepper motor 3 that power is provided, the speed reduction unit 4 of guaranteeing to obtain enough smooth rotation moments of torsion, leading screw 6 drives sensor fastening devices---translation piece 7 moves up and down, the shaft coupling 5 of connection reducer 4 and leading screw 6.4 pairs of stepper motors of speed reduction unit slow down, and obtain bigger torque, for test provides enough power, and stepper motor 3 have also been played protective effect.Precision lead screw 6 has improved the precision of test.Shaft coupling 5 connection reducers 4 and leading screw 6 had both guaranteed the transmission of rotating, and had prevented the infringement of impulsive force to speed reduction unit 4 and leading screw 6.Also have computing machine 1 in addition among Fig. 1, be used for revising and downloading.Guaranteed the high efficiency of production line.
The leather performance index are expressed three leather mechanical properties of former reason model representation:
The soft index expression of leather is ; is the bending force acting; is crooked restoring force acting ( is power, and is displacement). is crooked merit, the crooked merit sum of replying, and it is worth, and the soft index of the bright leather of novel is big more more.
The plentiful index expression of leather is ; is the force of compression acting; is compression reaction power acting ( is power, and is displacement). is the poor of work done during compression, compression reaction merit, and it is worth, and the plentiful index of the bright leather of novel is big more more.
The leather elastic index is expressed as ; stretches the power acting for the top; stretches restoring force acting ( is power, and is displacement) for the top. for merit is stretched on the top, the top is stretched and replied the poor of merit, it is worth, and the bright leather DE of novel is big more more.
Displacement transducer---grating chi, pressure transducer 10 that the leather parameter test system comprises the required gauge head 11 of clamping device 12, the different test request of fixing leather, worktable 13, is made up of displacement transducer 8 and read head 9.Displacement transducer---grating chi is used to measure the deflection of leather; Pressure transducer 10 is used to measure the force value under the certain distortion of leather; Three kinds of forms corresponding use respectively in three kinds of forms in the clamping device 12 and the gauge head 11, can be respectively to leather carry out bending, push up stretch, compression verification.Displacement transducer 8 is fixed on the frame; Read head 9 is fixed on the translation piece 7; Pressure transducer 10 is fixed on the pressure transducer erecting bed 15; And pressure transducer erecting bed 15 also is fixed on the translation piece 7, and read head 9 can be followed translation piece 7 with pressure transducer 10 and is synchronized with the movement, and guarantees the reliability of measurement data.Wherein the installation site of pressure transducer erecting bed 15 on translation piece 7 can be adjusted, and makes this tester have more dirigibility.
Control system comprises computing machine 1 and is installed in controller, stepper motor driver and the peripheral circuit element (being installed in the control box 2) in the control box 2.Controller in this system can be analyzed data automatically, and according to specific algorithm the data of sensor acquisition is handled, and shows last measurement result by display, and the normal operations worker can both onlinely carry out testing performance index to leather in view of the above.
Be appreciated that in the present invention, the data of being surveyed are reliable, three kinds of measuring methods being used have more science, make the leather performance test have the significance of times of striding.
As shown in Figure 2, when being used for the test of leather bending property, leather clamping device 12 comprises crooked test platform 12A; Crooked gauge head 11A, wherein crooked test platform 12A is a crooked test platform with groove, smooth surface is smooth; And there is screw corresponding on the crooked test platform 12A limit with screw on the worktable 13; Worktable 13 is cavitys of a boring, leather 14 is rolled into the cylinder that diameter equals recess width is placed in the groove of crooked test platform 12A, and crooked gauge head 11A is the crooked gauge head that has the rectangle base plate; Under the effect of crooked gauge head 11A, the leather cylinder produces distortion as shown in Figure 2.Displacement transducer and grating chi comprise that displacement transducer 8 and read head 9 gather displacement and corresponding force value respectively with pressure transducer 10, realize synchronous acquisition, and the data of feasible acquisition are reliable.And the recess width among the crooked test platform 12A is that definite value is that the diameter of tested leather cylinder is a definite value, so that measured value has very strong comparability.
As shown in Figure 3, be used for leather and push up when stretching performance test, leather clamping device 12 comprises pushing up stretches test board 12B; Gauge head 11B is stretched on the top, and wherein the annulus that test board 12B is a boring is stretched on the top, and has screw corresponding with screw on the worktable 13 on the annulus limit; Worktable 13 is cavitys of a boring, leather 14 is clipped in the top stretches between test board 12B and the worktable 13, and be screwed to push up and stretch test board 12B and worktable 13; Leather 14 just has been fixed like this; It is that the end is that gauge head is stretched on smooth hemispheric top that gauge head 11B is stretched on the top, stretches on the top under the effect of gauge head 11B, and leather produces distortion as shown in Figure 3.Displacement transducer---grating chi is gathered displacement and corresponding tension value respectively with pressure transducer 10, realizes synchronous acquisition, makes that the data that obtain are reliable, so that measured value has very strong comparability.
As shown in Figure 4, when being used for the test of leather compression performance, leather clamping device 12 comprises compression verification platform 12C; Compression gauge head 11C, wherein compression verification platform 12C is a ganoid plectane, and has screw corresponding with screw on the worktable 13 on the plectane limit; Worktable 13 is cavitys of a boring; Leather 14 is placed on the compression verification platform 12C, and is screwed compression verification platform 12C and worktable 13, compression gauge head 11C is the compression gauge head that has circular bottom plate; Under the effect of compression gauge head 11C, leather produces distortion as shown in Figure 4.Displacement transducer---grating chi is gathered displacement and corresponding force value respectively with pressure transducer 10, realizes synchronous acquisition, makes that the data that obtain are reliable, so that measured value has very strong comparability.The test of other two phase relatively; The desired force value of compression verification is maximum, and institute is fixing with compression verification platform 12C and worktable 13 with screw, prevents compression verification platform 12C slippage; Promptly guarantee stability, the measuring reliability of measuring system, also guaranteed operating personnel's life safety.
As shown in Figure 5, stop means of the present invention comprises upper limit position switch 18, lower position switch 19, null pick-up 20.Upper limit position switch 18 and null pick-up 20 are installed in the top of frame, and lower position switch 19 is installed in the bottom of frame.
Limit switch plays spacing function up and down, avoids machine to receive damage.Fig. 6 upper limit position switch that only draws, the installation site of lower position switch can be with reference to figure 1.Null pick-up 20 comprises sensor 20A and informing sheet 20B two parts, and when the tester electrifying startup, controller control step motor 3 rotates; Driving translation piece 7 moves upward; Informing sheet 20B is along with translation piece 7 moves upward, when informing sheet 20B inserts sensor 20A fully, null pick-up 20 signal to controller; 3 counter-rotatings of controller control step motor, instrument gets into normal operating conditions.
As shown in Figure 6, frame comprises base plate 16, fixed station 17, tripod 21.Wherein tripod 21 is made up of two tripod side plate 21A, a tripod vertical plate 21B, a tripod base plate 21C.Fixed station 17 is installed on the base plate 16, fixes with sunk screw.Tripod is fixed on the fixed station 17, fixes with sunk screw.Wherein four of tripod parts are spliced by mode shown in Figure 6, fix with sunk screw.Kinematic system is installed on the frame vertical plate 21B of tripod, and fixes with sunk screw, and its installation site can up-down adjustment, satisfies the requirement of fc-specific test FC.
Can find out that through above description the present invention is simple in structure, use flexibly; Guaranteed reliability, realized on-line testing, also can satisfy the requirement of fc-specific test FC the leather performance index to the leather testing performance index; Satisfy industrial high efficiency requirement, meet industrial requirement.

Claims (6)

1. leather testing performance index appearance; Comprise kinematic system, leather parameter test system, control system and frame, it is characterized in that: said kinematic system comprises stepper motor (3), speed reduction unit (4), translation piece (7), leading screw (6), shaft coupling (5); Said leather parameter test system comprises the fixedly clamping device of leather (12), gauge head (11), worktable (13), displacement transducer (8), pressure transducer (10); Clamping device (12) is fixedly connected on the base plate (16) of frame through worktable (13); Be provided with gauge head (11) above the clamping device (12); Pressure transducer (10) is equipped with in gauge head (11) upper end; Pressure transducer (10) is installed on the translation piece (7) through pressure transducer erecting bed (15); Translation piece (7) is in transmission connection with the stepper motor (3) that is fixed on the frame upper end through leading screw (6) and shaft coupling (5), and translation piece (7) side is fixedly connected with read head (9), and be equipped with and the corresponding displacement transducer of read head (9) (8) the frame side; Stop means is equipped with in the frame upper and lower position, and stepper motor (3), pressure transducer (10) and displacement transducer (8) and read head (9) are connected with the control box (2) of control system.
2. leather testing performance index appearance according to claim 1; It is characterized in that: when being used for the test of leather bending property; Test board in the said leather clamping device (12) is crooked test platform (12A); Used gauge head (11) is crooked gauge head (11A), wherein is provided with one in the crooked test platform (12A) and is used for placing the groove that institute's leather of surveying (14) is rolled up, and crooked gauge head (11A) is the crooked gauge head that has the rectangle base plate.
3. leather testing performance index appearance according to claim 1; It is characterized in that: be used for leather and push up when stretching performance test; Test board in the said leather clamping device (12) is stretched test board (12B) for the top; Used gauge head (11) is stretched gauge head (11B) for the top, and wherein the annulus that is provided with a boring in the test board (12B) is stretched on the top, and leather (14) is clipped in the top and stretches between test board (12B) and the worktable (13); And be screwed the top and stretch test board (12B) and worktable (13), it is that gauge head is stretched on smooth hemispheric top for the end that gauge head (11B) is stretched on the top.
4. leather testing performance index appearance according to claim 1; It is characterized in that: when being used for the test of leather compression performance; Test board in the said leather clamping device (12) is compression verification platform (12C); Used gauge head (11) is compression gauge head (11C), and wherein the surface of compression verification platform (12C) is smooth plectane, and leather (14) is placed on the compression verification platform (12C); And being screwed compression verification platform (12C) and worktable (13), compression gauge head (11C) is for having the compression gauge head of circular bottom plate.
5. leather testing performance index appearance according to claim 1; It is characterized in that: said stop means comprises upper limit position switch (18), lower position switch (19), null pick-up (20); Upper limit position switch (18) and null pick-up (20) are installed in the top of frame; Lower position switch (19) is installed in the bottom of frame, and null pick-up (20) is made up of sensor (20A) and informing sheet (20B), and sensor (20A) is contained in upper rack; And corresponding with upper limit position switch (18), informing sheet (20B) is fixed on the translation piece (7).
6. leather testing performance index appearance according to claim 1; It is characterized in that: said frame comprises base plate (16), fixed station (17), tripod (21); Wherein tripod 21 is made up of two blocks of tripod side plates (21A), a tripod vertical plate (21B), a tripod base plate (21C); Fixed station (17) is fixed on the base plate (16), and tripod 21 is fixed on the fixed station (17), goes up the mounted movable system at the frame vertical plate (21B) of tripod.
CN2012102414727A 2012-07-13 2012-07-13 Leather performance index testing instrument Pending CN102778400A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105842431A (en) * 2016-03-17 2016-08-10 广州狮岭皮革皮具产业研究中心有限公司 Leather quality detection method
CN107271296A (en) * 2017-08-01 2017-10-20 合肥布竹梦依服装贸易有限公司 A kind of automotive upholstery leather and fur products bend-resistance experimental rig
CN108037004A (en) * 2018-02-24 2018-05-15 佛山市尊科信息科技有限公司 A kind of Leather testing machine
CN108318348A (en) * 2017-12-31 2018-07-24 广德大金机械有限公司 A kind of leather and fur products folding quality Intelligentized test system

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CN101398421A (en) * 2008-09-17 2009-04-01 陕西科技大学 Method for measuring leather sense characteristic parameters
CN202748273U (en) * 2012-07-13 2013-02-20 上海应用技术学院 Leather property index testing instrument

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105842431A (en) * 2016-03-17 2016-08-10 广州狮岭皮革皮具产业研究中心有限公司 Leather quality detection method
CN105842431B (en) * 2016-03-17 2018-03-23 广州狮岭皮革皮具产业研究中心有限公司 Leather quality detection method
CN107271296A (en) * 2017-08-01 2017-10-20 合肥布竹梦依服装贸易有限公司 A kind of automotive upholstery leather and fur products bend-resistance experimental rig
CN108318348A (en) * 2017-12-31 2018-07-24 广德大金机械有限公司 A kind of leather and fur products folding quality Intelligentized test system
CN108037004A (en) * 2018-02-24 2018-05-15 佛山市尊科信息科技有限公司 A kind of Leather testing machine

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Application publication date: 20121114