CN114486719A - Pressure testing method for cylindrical simulation limb and elastic sock with adjustable circumference - Google Patents
Pressure testing method for cylindrical simulation limb and elastic sock with adjustable circumference Download PDFInfo
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- CN114486719A CN114486719A CN202210329821.4A CN202210329821A CN114486719A CN 114486719 A CN114486719 A CN 114486719A CN 202210329821 A CN202210329821 A CN 202210329821A CN 114486719 A CN114486719 A CN 114486719A
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000004088 simulation Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims description 78
- 230000003321 amplification Effects 0.000 claims description 53
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- 239000000741 silica gel Substances 0.000 claims description 32
- 229910002027 silica gel Inorganic materials 0.000 claims description 32
- 230000033001 locomotion Effects 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 2
- 210000003414 extremity Anatomy 0.000 description 20
- 210000002414 leg Anatomy 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000000689 upper leg Anatomy 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
- G01N19/00—Investigating materials by mechanical methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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Abstract
The invention discloses a pressure testing method of cylindrical simulated limbs and elastic socks with adjustable girth. Comprises a driving device, a variable cylindrical simulation limb and a pressure testing device; the driving device is arranged below the variable cylindrical simulation limb, and the pressure testing device is fixedly arranged on the variable cylindrical simulation limb; the driving device is movably connected with the variable cylindrical simulated limb and drives the blades to expand and move through the transmission shaft, so that the elastic socks to be treated sleeved on the variable cylindrical simulated limb are expanded, and the elastic socks to be treated deform along with the expansion. The invention obtains different pressure values by controlling the moving distance of the blades, thereby realizing the determination of the pressure values of different parts of the elastic socks to be processed, and the operation is simple and easy, thus leading the pressure test to be more scientific and reasonable.
Description
Technical Field
The invention relates to a testing method in the technical field of clothing pressure testing, in particular to a pressure testing method of a cylindrical simulation limb and an elastic sock with adjustable girth.
Background
With the development of the times, the requirements of people on the clothing wearability are gradually improved, so that the clothing pressure is widely concerned. When the elastic socks apply proper pressure value to human body, the elastic socks have positive effects of medical prevention and treatment, body shaping, improvement of human body motion function and the like. Excessive pressure will affect the metabolism and organ function of human body, and fatigue is easy to occur. Meanwhile, due to the complexity of the structure and the shape of the human body, the fit and the size design of the elastic socks greatly influence the wearing comfort.
Because the pressure values required to be provided by each part of the human body and each product are different, a more scientific, reasonable and convenient pressure detection system is designed, and the pressure values applied to each part of a wearer by the elastic socks are determined, so that the pressure values applied by each test product conform to the comfortable range of the human body, and the method has important significance for the research of the clothing pressure. The rapid and accurate detection of the pressure value of the elastic socks is beneficial to the development and evaluation of products, but most of the existing pressure measuring instruments are fixed by a manual stretching mode and mainly adopt single transverse stretching; the three-dimensional model in the existing pressure measuring instrument can not accurately measure according to the accurate thickness change of the circumference of the tested part, so that the measuring instrument can not effectively simulate the size of a real human leg according to the type of socks, the size of the leg and the like, and further can not measure a plurality of groups of pressure value data under different circumferences and curvatures.
Disclosure of Invention
Aiming at the problems, the invention provides the pressure testing method of the cylindrical simulation limb and the elastic socks with adjustable circumference, which can realize the determination of the pressure values of different parts of the elastic socks to be processed by controlling the moving distance of the blades to obtain different pressure values, has simple and easy operation and enables the pressure testing to be more scientific and reasonable.
The technical scheme adopted by the invention is as follows:
pressure test equipment of cylindricality simulation limbs and elasticity socks of enclosing degree adjustable
Comprises a driving device, a variable cylindrical simulation limb and a pressure testing device; the driving device is arranged below the variable cylindrical simulation limb, and the pressure testing device is fixedly arranged on the variable cylindrical simulation limb; the driving device is movably connected with the variable cylindrical simulated limb, and the elastic socks to be processed are sleeved on the variable cylindrical simulated limb.
The driving device comprises a servo motor, a first transmission shaft, a second transmission shaft, a third transmission shaft and a fixed table frame; be provided with three servo motor in the fixed table frame, three servo motor's organism all is fixed on the bottom surface in the fixed table frame, and three servo motor's output shaft is first transmission shaft, second transmission shaft and third transmission shaft respectively, and first transmission shaft, second transmission shaft and third transmission shaft pass three round hole that fixed table frame top surface was seted up along the horizontal direction respectively in proper order upwards all to be connected to variable cylindricality simulation limbs.
The variable cylindrical simulation limb comprises a first rotary amplification mechanism, a second rotary amplification mechanism, a connecting rod and a gear rack movement mechanism; the gear rack movement mechanism, the first rotary amplification mechanism and the second rotary amplification mechanism are sequentially sleeved on the connecting rod from top to bottom;
a groove body is fixed at the top end of the connecting rod, a round hole is formed in the middle of the groove body, the connecting rod is of a cylindrical hollow structure, the second transmission shaft is coaxially sleeved with the connecting rod through the hollow structure of the connecting rod, and the top end of the second transmission shaft penetrates through the round hole formed in the middle of the groove body to extend upwards and then is connected with the gear rack movement mechanism; the first transmission shaft is connected to the second rotary amplification mechanism and the first rotary amplification mechanism in sequence in the upward direction, and the third transmission shaft is connected to the second rotary amplification mechanism in the upward direction; the tail end of the connecting rod is fixed on the top surface of the fixed table frame.
The gear rack movement mechanism comprises a second blade, a second silica gel gasket, a rack and an upper gear; the second transmission shaft penetrates out of the top end of the connecting rod and then penetrates through the groove body to be coaxially and fixedly connected with the upper gear; the upper gear is arranged in the groove body, two ends of the groove body are respectively provided with a strip-shaped groove, and the strip-shaped grooves at the two ends of the groove body are arranged oppositely; the two racks are respectively embedded in the two strip-shaped grooves of the groove body, the two racks are mutually parallel and face to be distributed on two sides of the gear and are meshed and connected with the upper gear, the tail ends of the extending ends of the two racks are respectively fixed with a second blade, and the two second blades are symmetrically distributed on two sides of the groove body by taking the upper gear as a center; the outer surface of the second blade is covered with a second silica gel gasket which is the same as the second blade in shape, and the elastic socks to be processed are sleeved on the outer surface of the second blade and tightly attached to the second silica gel gasket.
The second rotary amplifying mechanism has the same internal structure as the first rotary amplifying mechanism; the first rotary amplification mechanism comprises a first blade, a support rod, a first silica gel gasket, a cylindrical protrusion, a fixed support column, a large gear and a small gear;
the connecting rod is fixed on the fixed support, the big gear is movably sleeved on the connecting rod and coaxially arranged, a plurality of curve grooves are arranged on the big gear, and a plurality of curve grooves are spirally dispersed and uniformly distributed around the axis of the bull gear in a plane, the spiral directions of the curve grooves are the same, a plurality of radial strip-shaped grooves are arranged on the fixed strut, a plurality of radial strip-shaped grooves are circumferentially and uniformly distributed on the periphery of the fixed support, a plurality of support rods are slidably arranged in the radial strip-shaped grooves formed on the fixed support, one end of the supporting rod is fixed with a cylindrical protrusion parallel to the direction of the connecting rod, each cylindrical protrusion is in sliding connection with the large gear through a curve groove formed in the large gear, the other end of the supporting rod is connected with a first blade, the outer surface of the first blade is covered with a first silica gel gasket in the same shape as the first blade, and the elastic socks to be processed are sleeved on the outer surface of the first blade and are tightly attached to the first silica gel gasket; a small gear is further arranged above the fixed support and fixedly connected to the first transmission shaft, and the small gear is meshed with the large gear.
A plurality of curve grooves formed in the large gear are all hollowed-out grooves.
The first blades and the second blades are of the same semi-annular structure, and the plurality of first blades and the plurality of second blades are circumferentially arranged and enclosed into a cylindrical barrel structure by taking the second transmission shaft as the center.
The edge of the fixed strut of the second rotary amplification mechanism is provided with two through holes at intervals, and the edge of the fixed strut of the first rotary amplification mechanism is provided with one through hole; the first transmission shaft sequentially passes through the through holes of the second rotary amplification mechanism and the fixed strut of the first rotary amplification mechanism and is upwards fixedly connected to the pinion of the first rotary amplification mechanism, and the third transmission shaft is upwards fixedly connected to the pinion of the second rotary amplification mechanism through the other through hole of the fixed strut of the second rotary amplification mechanism; the first transmission shaft and the third transmission shaft are not in contact with the fixed support.
The pressure testing device comprises a pressure sensor, a signal acquisition module, a power supply and a PC (personal computer) end; the plurality of pressure sensors are respectively arranged on the first silica gel gasket and the second silica gel gasket and are respectively and electrically connected with the PC end and the power supply through the signal acquisition module.
Secondly, the testing method applied to the pressure testing equipment of the cylindrical simulation limb and the elastic sock with adjustable circumference comprises the following steps:
s1, electrically connecting the pressure sensors to a power supply and a PC (personal computer) end, and calibrating the pressure sensors in the pressure testing device under the condition of no external force; after calibration, respectively installing a plurality of pressure sensors on a first silica gel gasket and a second silica gel gasket;
s2, marking test points on the elastic socks to be processed, sleeving the elastic socks to be processed on the first blade and the second blade, adjusting the positions of the elastic socks to be processed, and positioning the test points marked on the elastic socks to be processed on the pressure sensor;
s3, starting a driving device to enable the first transmission shaft, the second transmission shaft and the third transmission shaft to start rotating;
s4, the first transmission shaft and the third transmission shaft respectively drive a pinion in the first rotary amplification mechanism and a pinion in the second rotary amplification mechanism to rotate, the pinion is meshed with the gearwheel and drives the cylindrical protrusion to move in the curved groove of the gearwheel, and the support rod and the first blade are driven to move radially, so that the elastic socks to be processed are supported and stretched towards the moving direction of the first blade;
s5, the first transmission shaft drives an upper gear in the gear rack movement mechanism to move, the two gear racks move oppositely in the horizontal direction, and a second blade fixed on the gear racks is driven to move radially, so that the elastic socks to be processed are supported and stretched towards the moving direction of the second blade;
and S6, the pressure sensor outputs the measurement result to the PC end through the signal acquisition module to read the pressure value.
Compared with the prior art, the invention has the following beneficial effects:
the invention can replace the blades or increase or decrease the number of the blades and the supporting rods according to different curvature radiuses of all parts to be tested, so that a plurality of groups of pressure value data under different circumferences and curvatures can be conveniently measured aiming at the complicated appearance structure of a human body, and a better pressure test effect is achieved.
The degree of stretch of the elastic socks can be changed according to the position to be tested, so that the accurate measurement of a plurality of groups of pressure value data is realized.
The material of outside parcel is the silica gel gasket, can the human skin of true simulation, and the silica gel gasket can kick-back rapidly after the effect extrusion deformation that receives the power, is superior to other rigidity models, emulation that can be better.
The method is not influenced by subjective factors, repeated experiments can be carried out for multiple times, the efficiency can be improved by applying the flexible mannequin to carry out clothes pressure tests, the test result is not influenced by the subjective factors, the long-time work can be realized, and the working efficiency is improved.
The garment pressure testing system avoids using a real model, is not influenced by subjective factors, can repeat experiments for many times, and reduces the measurement cost. The model operation is easy and convenient, and the pressure test is more scientific and reasonable.
The testing device simulates limbs through a cylinder, and the design of the round legs has the advantages of being movable, changeable in size, easy to wear and the like. Meanwhile, the elastic socks can be adjusted according to the anatomical structure of the legs, the posture and the position of the legs, the design and the physical properties of the elastic socks.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an isometric view of the drive of the present invention;
FIG. 4 is an expanded top view of the rotating magnification mechanism of the present invention;
FIG. 5 is an isometric view of the interior of the rack and pinion motion mechanism of the present invention;
FIG. 6 is a top view of the rack and pinion motion mechanism of the present invention;
FIG. 7 is a schematic diagram of the relationship of the pressure sensing system of the present invention.
Shown in the figure: a servomotor 1; a first transmission shaft 2; a second transmission shaft 3; a third transmission shaft 4; a fixed table frame 5; a first blade 6; a support bar 7; a first silica gel gasket 8; a cylindrical protrusion 9; a stationary support column 10; a bull gear 11; a pinion gear 12; a second blade 13; a second silicone gasket 14; a rack 15; an upper gear 16; a card slot 17; a connecting rod 18; a pressure sensor 19; a signal acquisition module 20; a power supply 21; a PC terminal 22.
Detailed Description
The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings.
As shown in fig. 1, the apparatus comprises a driving device, a variable cylindrical simulated limb and a pressure testing device; the driving device is arranged below the variable cylindrical simulation limb, and the pressure testing device is fixedly arranged on the variable cylindrical simulation limb; the driving device is movably connected with the variable cylindrical simulated limb, and the elastic socks to be processed are sleeved on the variable cylindrical simulated limb.
Specifically, as shown in fig. 2 and 3, the driving device includes a servo motor 1, a first transmission shaft 2, a second transmission shaft 3, a third transmission shaft 4 and a fixed table frame 5; be provided with three servo motor 1 in the fixed table frame 5, the organism of three servo motor 1 is all fixed on the bottom surface in the fixed table frame 5, and the output shaft of three servo motor 1 is first transmission shaft 2, second transmission shaft 3 and third transmission shaft 4 respectively, and first transmission shaft 2, second transmission shaft 3 and third transmission shaft 4 pass 5 top surfaces of fixed table frame respectively in proper order and upwards all are connected to variable cylindricality simulation limbs along the three round hole that the horizontal direction was seted up.
The variable cylindrical simulated limb comprises a first rotary amplification mechanism, a second rotary amplification mechanism, a connecting rod 18 and a gear rack movement mechanism; the rack and pinion motion mechanism, the first rotary amplification mechanism and the second rotary amplification mechanism are sequentially sleeved on the connecting rod 18 from top to bottom.
A groove body 17 is fixed at the top end of the connecting rod 18, a round hole is formed in the middle of the groove body 17, the connecting rod 18 is of a cylindrical hollow structure, the second transmission shaft 3 is coaxially sleeved with the connecting rod 18 through the hollow structure of the connecting rod 18, and the top end of the second transmission shaft 3 penetrates through the round hole formed in the middle of the groove body 17 to extend upwards and then is connected with the gear rack movement mechanism; the first transmission shaft 2 is upwards connected to the second rotary amplification mechanism and the first rotary amplification mechanism in sequence, and the third transmission shaft 4 is upwards connected to the second rotary amplification mechanism; the tail end of the connecting rod 18 is fixed at a middle round hole on the top surface of the fixed table frame 5.
As shown in fig. 5 and 6, the rack-and-pinion movement mechanism includes a second blade 13, a second silicone gasket 14, a rack 15, and an upper gear 16; the second transmission shaft 3 penetrates out of the top end of the connecting rod 18 and then penetrates through the groove body 17 to be coaxially and fixedly connected with the upper gear 16; the upper gear 16 is arranged in the groove body 17, two ends of the groove body 17 are both provided with a strip-shaped groove, and the strip-shaped grooves at the two ends of the groove body 17 are arranged oppositely; the two racks 15 are respectively nested in the two strip-shaped grooves of the trough body 17, the two racks 15 are mutually parallel and face to the two sides of the gear 16 and are simultaneously meshed and connected with the upper gear 16, the tail ends of the extending ends of the two racks 15 are respectively fixed with a second blade 13, and the two second blades 13 are symmetrically distributed on the two sides of the trough body 17 by taking the upper gear 16 as a center; the outer surface of the second blade 13 is covered with a second silica gel gasket 14 which has the same shape as the second blade 13, and the elastic socks to be processed are sleeved on the outer surface of the second blade 13 and tightly attached to the second silica gel gasket 14; when the second transmission shaft 3 rotates, the upper gear 16 is driven to rotate, the two racks 15 are driven to horizontally move along the strip-shaped grooves in the groove body 17, the two second blades 13 are pushed to expand and move towards the two sides of the groove body 17, and the to-be-treated elastic socks sleeved on the outer surfaces of the second blades 13 are stretched. Specifically, the thickness of the second silica gel pad 14 is 0.3cm, the diameter range of the cylindrical barrel enclosed by the second blade 13 is 3-7cm, the ankle of a human body is simulated, the height of the second blade 13 is 5cm, and the thickness of the second blade is 0.2 cm.
As shown in fig. 4, the second rotation enlarging mechanism has the same internal structure as the first rotation enlarging mechanism, and the sizes of the two rotation enlarging mechanisms are determined according to the size of the measured portion.
The first rotary amplification mechanism comprises a first blade 6, a support rod 7, a first silica gel gasket 8, a cylindrical protrusion 9, a fixed support 10, a large gear 11 and a small gear 12.
The connecting rod 18 is fixed on the fixed support post 10, the big gear 11 is movably sleeved on the connecting rod 18 and coaxially arranged, a plurality of curve grooves are arranged on the big gear 11, the curve grooves are uniformly distributed around the big gear 11 in a plane spiral manner by taking the axis of the big gear 11 as the center, the spiral direction of each curve groove is the same, a plurality of radial strip grooves are arranged on the fixed support post 10, the radial strip grooves are uniformly distributed around the fixed support post 10 in the circumferential direction, a plurality of support rods 7 are slidably arranged in the radial strip grooves arranged on the fixed support post 10, one end of each support rod 7 is fixed with a cylindrical protrusion 9 parallel to the direction of the connecting rod 18, each cylindrical protrusion 9 is slidably connected with the big gear 11 through the curve groove arranged on the big gear 11, the other end of each support rod 7 is connected with a first blade 6, the outer surface of each first blade 6 is covered with a first silica gel gasket 8 with the same shape as the first blade 6, the elastic socks to be processed are sleeved on the outer surface of the first blade 6 and tightly attached to the first silica gel gasket 8, and the thickness of the first silica gel gasket 8 is 0.3 cm; a pinion 12 is further arranged above the fixed support 10, the pinion 12 is fixedly connected to the first transmission shaft 2, the pinion 12 is meshed with the large gear 11 and connected with the first transmission shaft 2, the pinion 12 is driven to rotate to drive the large gear 11 to rotate, the cylindrical protrusion 9 in the curve groove of the large gear 11 moves along the curve groove, the support rod 7 drives the first blade 6 to move radially, and then the elastic socks to be processed, sleeved on the outer surface of the first blade 6, are unfolded. Wherein, a plurality of curve grooves arranged on the big gear 11 are all hollow grooves.
The first blades 6 and the second blades 13 are of the same semi-annular structure, the first blades 6 and the second blades 13 are circumferentially arranged around the second transmission shaft 3 as the center to form a cylindrical barrel structure for stretching elastic socks to be processed, and the number of the first blades 6 and the number of the second blades 13 are determined according to the elastic socks to be processed. Wherein, the first blade 6, the second blade 13 and the support rod 7 are made of stainless steel. The radius range of a cylindrical barrel defined by the first blades 6 in the first rotating and amplifying mechanism is 4.5-8.5cm, and the calf of a human body is simulated; the radius range of a cylindrical barrel defined by the first blades 6 in the second rotating and amplifying mechanism is 6-10cm, and the thigh of a human body is simulated. The height of the first blades 6 is 5cm, the thickness of the first blades is 0.2cm, the number, the size and the curvature of the models can be adjusted according to actual conditions and other requirements, and excessive requirements are not required.
Two through holes are arranged at the edge of the fixed strut 10 of the second rotary amplification mechanism at intervals, and one through hole is arranged at the edge of the fixed strut 10 of the first rotary amplification mechanism; the first transmission shaft 2 sequentially passes through the through holes of the second rotation amplification mechanism and the first rotation amplification mechanism fixing strut 10 and is fixedly connected to the pinion 12 of the first rotation amplification mechanism upwards, and the third transmission shaft 4 is fixedly connected to the pinion 12 of the second rotation amplification mechanism upwards through the other through hole of the second rotation amplification mechanism fixing strut 10; the first transmission shaft 2 and the third transmission shaft 4 are not in contact with the stationary pillar 10.
As shown in fig. 7, the pressure testing device includes a pressure sensor 19, a signal acquisition module 20, a power supply 21 and a PC terminal 22; the pressure sensors 19 are respectively installed on the first silica gel gasket 8 and the second silica gel gasket 14, and are respectively electrically connected with the PC end 22 and the power supply 21 through the signal acquisition module 20 for data transmission, so that a pressure value obtained after the blades act on the to-be-detected clothes to be worn and sleeved on the device to deform is obtained, and the pressure value can be regarded as the pressure of the clothes on a human body.
The testing method applied to the pressure testing equipment specifically comprises the following steps:
s1, electrically connecting the pressure sensors (19) to a power supply (21) and a PC terminal (22), and calibrating the plurality of pressure sensors (19) in the pressure testing device under the condition of no external force; after calibration, the plurality of pressure sensors 19 are mounted on the first silicone gasket 8 and the second silicone gasket 14, respectively.
S2, marking the test points on the elastic socks to be processed, sleeving the elastic socks to be processed on the first blade 6 and the second blade 13, adjusting the position of the elastic socks to be processed, and positioning the test points marked on the elastic socks to be processed on the pressure sensor 19.
And S3, starting the driving device to enable the first transmission shaft 2, the second transmission shaft 3 and the third transmission shaft 4 to start rotating.
S4, the first transmission shaft 2 and the third transmission shaft 4 respectively drive the pinion 12 in the first rotary amplification mechanism and the second rotary amplification mechanism to rotate, the pinion 12 is meshed with the gearwheel 11 to drive the cylindrical protrusion 9 to move in the curved groove of the gearwheel 11, and the support rod 7 and the first blade 6 are driven to move radially, so that the elastic socks to be processed are supported and stretched towards the moving direction of the first blade 6.
S5, the first transmission shaft 2 drives the upper layer gear 16 in the gear rack movement mechanism to move, the two gear racks 15 move oppositely in the horizontal direction, and the second blade 13 fixed on the gear racks 15 is driven to move radially, so that the elastic socks to be processed are propped up and stretched towards the moving direction of the second blade 13.
Specifically, when all the first blades 6 and the second blades 13 are moved outward by 1 cm, the activation of the servo motor 1 is stopped.
And S6, stopping testing after the pressure data reach a stable state, and outputting the measurement result to the PC end 22 by the pressure sensor 19 through the signal acquisition module 21 to read the pressure value.
The above steps are repeated in sequence, and the servo motor 1 is controlled to change the circumference of the model, so that the outward movement distances of all the first blades 6 and the second blades 13 are respectively 2cm, 3cm and 4 cm. Finally, the pressure generated on the surface of the human body by the elastic socks to be measured can be known according to the obtained pressure value.
Therefore, by controlling the rotation of the transmission shaft of the servo motor 1, the first blades 6 and the second blades 13 are moved to the required positions to change the deformation amount of the elastic socks to be processed, so as to obtain pressure values under different deformation amounts, and further study the relation between the deformation amount and the pressure value. Meanwhile, a relevant prediction model is established based on the data, an effective pressure prediction model is established, the comfort degree of the pressure socks acting on the human body can be known based on the pressure value, and the type of the pressure socks can be adjusted according to the pressure value.
Claims (10)
1. The utility model provides a pressure test equipment of cylindricality simulation limbs and elasticity socks of girth adjustable which characterized in that:
comprises a driving device, a variable cylindrical simulation limb and a pressure testing device; the driving device is arranged below the variable cylindrical simulated limb, and the pressure testing device is fixedly arranged on the variable cylindrical simulated limb; the driving device is movably connected with the variable cylindrical simulated limb, and the elastic socks to be processed are sleeved on the variable cylindrical simulated limb.
2. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 1, wherein: the driving device comprises a servo motor (1), a first transmission shaft (2), a second transmission shaft (3), a third transmission shaft (4) and a fixed table frame (5); the three-dimensional simulation table is characterized in that three servo motors (1) are arranged in the fixed table frame (5), bodies of the three servo motors (1) are fixed on the inner bottom surface of the fixed table frame (5), output shafts of the three servo motors (1) are respectively a first transmission shaft (2), a second transmission shaft (3) and a third transmission shaft (4), and the first transmission shaft (2), the second transmission shaft (3) and the third transmission shaft (4) sequentially penetrate through three round holes formed in the top surface of the fixed table frame (5) along the horizontal direction and are upwards connected to the variable cylindrical simulation limb.
3. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 2, wherein: the variable cylindrical simulated limb comprises a first rotary amplification mechanism, a second rotary amplification mechanism, a connecting rod (18) and a gear rack movement mechanism; the gear rack movement mechanism, the first rotary amplification mechanism and the second rotary amplification mechanism are sequentially sleeved on the connecting rod (18) from top to bottom;
a groove body (17) is fixed at the top end of the connecting rod (18), a round hole is formed in the middle of the groove body (17), the connecting rod (18) is of a cylindrical hollow structure, the second transmission shaft (3) is coaxially sleeved with the connecting rod (18) through the hollow structure of the connecting rod (18), and the top end of the second transmission shaft (3) penetrates through the round hole formed in the middle of the groove body (17) to extend upwards and then is connected with the gear rack movement mechanism; the first transmission shaft (2) is upwards and sequentially connected to a second rotary amplification mechanism and a first rotary amplification mechanism, and the third transmission shaft (4) is upwards and sequentially connected to the second rotary amplification mechanism; the tail end of the connecting rod (18) is fixed on the top surface of the fixed table frame (5).
4. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 3, wherein: the gear rack movement mechanism comprises a second blade (13), a second silica gel gasket (14), a rack (15) and an upper gear (16); the second transmission shaft (3) penetrates out of the top end of the connecting rod (18) and then penetrates through the groove body (17) to be coaxially and fixedly connected with the upper-layer gear (16); the upper-layer gear (16) is arranged in the groove body (17), two ends of the groove body (17) are respectively provided with a strip-shaped groove, and the strip-shaped grooves at the two ends of the groove body (17) are arranged oppositely; the two racks (15) are respectively nested in the two strip-shaped grooves of the groove body (17), the two racks (15) are mutually parallel and face to be distributed on two sides of the gear (16) and are meshed and connected with the gear (16) on the upper layer, the tail ends of the extending ends of the two racks (15) are respectively fixed with a second blade (13), and the two second blades (13) are symmetrically distributed on two sides of the groove body (17) by taking the gear (16) on the upper layer as a center; the outer surface of the second blade (13) is covered with a second silica gel gasket (14) which is the same as the second blade (13) in shape, and the elastic socks to be processed are sleeved on the outer surface of the second blade (13) and tightly attached to the second silica gel gasket (14).
5. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 4, wherein: the second rotary amplification mechanism has the same internal structure as the first rotary amplification mechanism; the first rotary amplification mechanism comprises a first blade (6), a support rod (7), a first silica gel gasket (8), a cylindrical protrusion (9), a fixed support (10), a large gear (11) and a small gear (12);
connecting rod (18) are fixed in stationary mast (10), and gear wheel (11) activity suit is on connecting rod (18) and coaxial arrangement, a plurality of curve grooves have been seted up on gear wheel (11), just a plurality of curve grooves use gear wheel (11) axle center to disperse the equipartition with the plane heliciform all around to, and the screw direction in each curve groove is the same, a plurality of radial bar grooves have been seted up on stationary mast (10), just a plurality of radial bar groove circumference equipartitions are around stationary mast (10), and are a plurality of bracing piece (7) slidable mounting is in the radial bar groove of seting up on stationary mast (10), the one end of bracing piece (7) is fixed with a cylindrical projection (9) that is on a parallel with connecting rod (18) direction, each cylindrical projection (9) are through curved groove and gear wheel (11) sliding connection of seting up on gear wheel (11), the other end of the supporting rod (7) is connected with a first blade (6), the outer surface of the first blade (6) is covered with a first silica gel gasket (8) which is the same as the first blade (6) in shape, and the elastic socks to be processed are sleeved on the outer surface of the first blade (6) and tightly attached to the first silica gel gasket (8); a pinion (12) is further arranged above the fixed support column (10), the pinion (12) is fixedly connected to the first transmission shaft (2), and the pinion (12) is meshed with the gearwheel (11) in a connecting mode.
6. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 5, wherein: the curve grooves formed in the large gear (11) are all hollowed-out grooves.
7. The cylindrical simulated limb and sock pressure testing apparatus with adjustable circumference of claim 5, wherein: the first blades (6) and the second blades (13) are of the same semi-annular structure, and the first blades (6) and the second blades (13) are circumferentially arranged around the second transmission shaft (3) to form a cylindrical barrel structure.
8. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 3, wherein: two through holes are arranged at the edge of the fixed strut (10) of the second rotary amplification mechanism at intervals, and one through hole is arranged at the edge of the fixed strut (10) of the first rotary amplification mechanism; the first transmission shaft (2) sequentially passes through holes of a second rotary amplification mechanism and a first rotary amplification mechanism fixing support (10) and is upwards fixedly connected to a pinion (12) of the first rotary amplification mechanism, and the third transmission shaft (4) is upwards fixedly connected to the pinion (12) of the second rotary amplification mechanism through another through hole of the second rotary amplification mechanism fixing support (10); the first transmission shaft (2) and the third transmission shaft (4) are not in contact with the fixed support (10).
9. The circumference-adjustable pressure testing device for cylindrical simulated limbs and elastic socks according to claim 1, wherein: the pressure testing device comprises a pressure sensor (19), a signal acquisition module (20), a power supply (21) and a PC (personal computer) end (22); the pressure sensors (19) are respectively installed on the first silica gel gasket (8) and the second silica gel gasket (14) and are respectively and electrically connected with the PC end (22) and the power supply (21) through the signal acquisition module (20).
10. The test method applied to the pressure test equipment of the cylindrical simulation limb and the elastic sock with adjustable circumference as claimed in claims 1-7 is characterized in that: the test method specifically comprises the following steps:
s1, electrically connecting the pressure sensors (19) to a power supply (21) and a PC terminal (22), and calibrating the plurality of pressure sensors (19) in the pressure testing device under the condition of no external force; after calibration, a plurality of pressure sensors (19) are respectively arranged on a first silica gel gasket (8) and a second silica gel gasket (14);
s2, marking test points on the elastic socks to be processed, sleeving the elastic socks to be processed on the first blade (6) and the second blade (13), adjusting the positions of the elastic socks to be processed, and positioning the test points marked on the elastic socks to be processed on the pressure sensor (19);
s3, starting a driving device to enable the first transmission shaft (2), the second transmission shaft (3) and the third transmission shaft (4) to start to rotate;
s4, the first transmission shaft (2) and the third transmission shaft (4) respectively drive a pinion (12) in the first rotary amplification mechanism and a pinion (12) in the second rotary amplification mechanism to rotate, the pinion (12) is meshed with the large gear (11) to drive the cylindrical protrusion (9) to move in a curve groove of the large gear (11) and drive the support rod (7) and the first blade (6) to move radially, so that the elastic socks to be processed are supported and stretched towards the moving direction of the first blade (6);
s5, the first transmission shaft (2) drives an upper layer gear (16) in the gear and rack movement mechanism to move, two racks (15) move oppositely in the horizontal direction, and a second blade (13) fixed on the racks (15) is driven to move radially, so that the elastic socks to be processed are propped up and stretched towards the moving direction of the second blade (13);
s6, the pressure sensor (19) outputs the measurement result to the PC end (22) through the signal acquisition module (20) to read the pressure value.
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