CN109406368B - Low-twist super-soft high-comfort knitted fabric ventilation detection device and detection method thereof - Google Patents
Low-twist super-soft high-comfort knitted fabric ventilation detection device and detection method thereof Download PDFInfo
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- CN109406368B CN109406368B CN201811502536.8A CN201811502536A CN109406368B CN 109406368 B CN109406368 B CN 109406368B CN 201811502536 A CN201811502536 A CN 201811502536A CN 109406368 B CN109406368 B CN 109406368B
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- 239000004744 fabric Substances 0.000 title claims abstract description 206
- 238000001514 detection method Methods 0.000 title claims abstract description 135
- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 114
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000004321 preservation Methods 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 94
- 230000035699 permeability Effects 0.000 claims description 50
- 229910052757 nitrogen Inorganic materials 0.000 claims description 47
- 239000007789 gas Substances 0.000 claims description 45
- 210000001503 joint Anatomy 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000002310 reflectometry Methods 0.000 description 18
- 230000035515 penetration Effects 0.000 description 6
- 239000003570 air Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004243 sweat 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
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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Abstract
The invention discloses a low-twist super-soft high-comfort knitted fabric ventilation detection device and a detection method thereof. Belongs to the technical field of knitted fabric ventilation detection equipment. The device can detect the ventilation property and the heat preservation property of the knitted fabric. The fabric detection device comprises an industrial tablet personal computer, a rack, a fabric detection rack, an air blowing mechanism, an air quantity detection mechanism, a heating mechanism and a heat detection mechanism, wherein the fabric detection rack is driven by a first air cylinder to longitudinally move and is arranged on the rack; the fabric detection frame comprises a blowing ventilation detection area and a heating heat insulation detection area.
Description
Technical Field
The invention relates to the technical field of knitted fabric ventilation detection equipment, in particular to a low-twist super-soft high-comfort knitted fabric ventilation detection device and a detection method thereof.
Background
The air permeability and the heat preservation performance of the knitted fabric can be felt by a wearer. The clothes with good air permeability and heat preservation performance can keep the heat of the clothes worn by the wearer and is breathable and comfortable to wear. The clothes with good air permeability can increase the heat dissipation speed, avoid the phenomenon of sweat accumulation of a human body and improve the wearing comfort of people.
The knitted fabric with good air permeability and good heat preservation effect is a better requirement for the knitted fabric. However, at present, no equipment for detecting the air permeability and the heat preservation performance of the knitted fabric at the same time is available, so that it is very necessary to design equipment capable of detecting the air permeability and the heat preservation performance of the knitted fabric.
Disclosure of Invention
The invention provides a low-twist super-soft high-comfort knitted fabric ventilation detection device and a detection method thereof, which can be used for detecting ventilation and heat preservation of a knitted fabric and are high in reliability, and the ventilation detection device is used for solving the defect that ventilation and heat preservation of the knitted fabric are difficult to detect due to the fact that equipment for detecting ventilation and heat preservation of the knitted fabric is not specially used at present.
The technical problems are solved by the following technical proposal:
the low-twist super-soft high-comfort knitted fabric ventilation detection device comprises an industrial tablet personal computer, a rack, a fabric detection frame, an air blowing mechanism, an air quantity detection mechanism, a heating mechanism and a heat detection mechanism, wherein the fabric detection frame is arranged on the rack in a longitudinal movement manner driven by a first cylinder; the fabric detection frame comprises a blowing ventilation detection area and a heating heat insulation detection area; the air blowing pipe of the air blowing mechanism is opposite to the left side of the air blowing and ventilation detection area, the first air receiving port of the air flow detection mechanism is opposite to the right side of the air blowing and ventilation detection area, the second air receiving port of the air flow detection mechanism is arranged above the air blowing pipe at the left side of the air blowing and ventilation detection area, and the third air receiving port of the air flow detection mechanism is arranged below the air blowing pipe at the left side of the air blowing and ventilation detection area; a heat insulation board is arranged in the heating heat insulation detection area, a horn-shaped heat reflection cover with an opening facing left is arranged on the left surface of the heat insulation board, the heat dissipation end of the heating mechanism is arranged in the heat reflection cover, and the heat detection end of the heat detection mechanism is opposite to the left side of the heat reflection cover; cloth clamps are respectively arranged on the machine frames positioned above and below the fabric detection frame; a first motor is arranged on the air blowing pipe, a rotating ring is arranged on a rotating shaft of the first motor, a plurality of air blowing changing pipes are arranged on the rotating ring, and a spiral air guide sheet is arranged on the inner pipe wall of each air blowing changing pipe; each blowing changing pipe can be in one-to-one butt joint and pressed on an air outlet of the blowing pipe under the drive of a rotating shaft of a motor I; the control end of the first air cylinder, the control end of the air blowing mechanism, the control end of the air flow detection mechanism, the control end of the heating mechanism, the control end of the heat detection mechanism and the control end of the first motor are respectively connected with an industrial tablet computer.
When the air permeability of the knitted fabric is detected, the upper end and the lower end of the knitted fabric are clamped by an upper cloth clamp and a lower cloth clamp which are arranged on a frame, and the knitted fabric is tensioned, so that a detection area of the knitted fabric is in a vertical plane; at this time, the knitted fabric is positioned between the air blowing pipe and the first air receiving opening.
Then under the control of an industrial tablet personal computer, the air blowing pipe of the air blowing mechanism blows air to the knitted fabric in the air blowing ventilation detection area, the first air receiving port, the second air receiving port and the third air receiving port of the air flow detection mechanism collect air blown out by the air blowing pipe respectively, and the air flow rate of the collected air is detected by the air flow detection mechanism; determining whether the air permeability of the knitted fabric is qualified according to the detected air flow rate; if the detected gas flow rate is within the set value range, judging that the air permeability of the knitted fabric is qualified, otherwise, judging that the air permeability of the knitted fabric is unqualified;
the method comprises the steps of detecting the air permeability of the knitted fabric, and simultaneously starting a heat emitting end of a heating mechanism to emit heat to perform heating and heat insulation detection on the knitted fabric positioned in a heating and heat insulation detection area; if the heat detection mechanism detects that the heat transmitted from the side of the knitted fabric is within the range of the set value, judging that the heat preservation property of the knitted fabric is qualified, otherwise, judging that the heat preservation property of the knitted fabric is unqualified; and judging the knitted fabric with qualified air permeability and heat preservation as a qualified knitted fabric product. And then warehousing the qualified knitted fabric product.
When the air permeability of the knitted fabric is detected, the upper end and the lower end of the knitted fabric are clamped through an upper cloth clamp and a lower cloth clamp which are arranged on a frame, and the knitted fabric is tensioned, so that a detection area of the knitted fabric is in a vertical plane;
then under the control of an industrial tablet personal computer, the air blowing pipe of the air blowing mechanism blows air to the knitted fabric in the air blowing ventilation detection area, the first air receiving port, the second air receiving port and the third air receiving port of the air flow detection mechanism collect air blown out by the air blowing pipe respectively, and the air flow rate of the collected air is detected by the air flow detection mechanism; determining whether the air permeability of the knitted fabric is qualified according to the detected air size; if the detected flow rate of the gas is within the design range, judging that the air permeability of the knitted fabric is qualified, otherwise, judging that the air permeability of the knitted fabric is unqualified;
the method comprises the steps of detecting the air permeability of the knitted fabric, and simultaneously starting a heat emitting end of a heating mechanism to emit heat to perform heating and heat insulation detection on the knitted fabric positioned in a heating and heat insulation detection area; if the heat detection mechanism detects that the heat transmitted from the side of the knitted fabric is within the design range, judging that the heat preservation property of the knitted fabric is qualified, otherwise, judging that the heat preservation property of the knitted fabric is unqualified;
and judging the knitted fabric with qualified air permeability and heat preservation as a qualified knitted fabric product.
Preferably, the air blowing mechanism comprises a nitrogen storage tank, and an air inlet end of the air blowing mechanism is in butt joint connection with an air outlet of the nitrogen storage tank; the gas quantity detection mechanism comprises a nitrogen detector outside the tank, three gas collection tanks and a nitrogen detector in the tank, wherein the nitrogen detector is respectively arranged in the three gas collection tanks; the air inlets of the three air collection tanks are respectively connected with the air outlet pipes corresponding to the first air outlet, the second air outlet and the third air outlet in a butt joint way; the nitrogen detector outside the tank and the nitrogen detector in each tank are respectively connected with an industrial tablet computer.
The nitrogen content in the air outside the gas collection tank is collected by the nitrogen detector outside the tank, the nitrogen content in the gas collection tank is collected by the nitrogen detector inside the tank, and whether the air permeability of the knitted fabric is unqualified can be indirectly judged after comparison or calculation is performed between the nitrogen content detected by the nitrogen detector inside each tank and the nitrogen content detected by the nitrogen detector outside the tank.
The air inlet of the first gas collecting tank of the three gas collecting tanks is in butt joint connection with the air outlet pipe of the first air collecting port; an air inlet of a second gas collection tank in the three gas collection tanks is in butt joint connection with an air outlet pipe of the second air collection port; an air inlet of a third gas collecting tank in the three gas collecting tanks is in butt joint connection with an air outlet pipe of the third air collecting port.
Because the size of the gas blown out from the gas blowing pipe is settable. When the first air receiving port, the second air receiving port and the third air receiving port collect gas, air and nitrogen blown out from the air blowing pipe are collected into the corresponding three gas collecting tanks. Therefore, the air flow penetration rate L1 of the knitted fabric can be calculated by detecting the nitrogen content in the first air collecting tank. The reflectivity L2 on the air flow of the knitted fabric can be calculated by detecting the nitrogen content in the second gas collection tank. The reflectivity L3 of the knitted fabric under the air flow can be calculated by detecting the nitrogen content in the third gas collecting tank.
When the value H1 of the upper air flow reflectivity L2 divided by the lower air flow reflectivity L3 is more than or equal to a set value 1A and less than or equal to a set value 1.2A, judging that the air blown by the air blowing pipe is vertically blown to the knitted fabric, wherein A is a correction parameter of the set value; when the value H1 of the upper air flow reflectivity L2 divided by the lower air flow reflectivity L3 is larger than the set value 1.2A, the air blown by the air blowing pipe is judged to be blown upwards obliquely to the knitted fabric.
When the angle B of the air blown by the air blowing pipe, which is obliquely blown upwards to the knitted fabric, is larger than 150 degrees, if the value H2 of the air flow transmittance L1 divided by the air flow upper reflectivity L2 is larger than or equal to a set value 10A, and meanwhile, if the value H1 of the air flow upper reflectivity L2 divided by the air flow lower reflectivity L3 is smaller than or equal to a set value 15A, judging that the knitted fabric is qualified in air permeability, otherwise, judging that the knitted fabric is not qualified in air permeability.
Preferably, wind speed sensors are respectively arranged in air outlet pipes corresponding to the first air outlet, the second air outlet and the third air outlet of the air volume detection mechanism, and each wind speed sensor is respectively connected with an industrial tablet personal computer.
The air flow entering the first air receiving port, the second air receiving port and the third air receiving port can be easily detected through the air speed sensor. The air flow detected by each air speed sensor is compared or calculated with the preset values among the air flow speeds of the first air receiving port, the second air receiving port and the third air receiving port, so that whether the air permeability of the knitted fabric is qualified can be judged more quickly. The method for detecting the air permeability of the knitted fabric is simple and has high reliability.
Preferably, a laser lamp which irradiates vertically downwards is arranged at the upper end of the fabric detection frame, a photoelectric sensor which can receive the laser lamp is arranged at the lower end of the fabric detection frame, and the laser lamp and the photoelectric sensor are respectively connected with an industrial tablet personal computer; an upper roller is longitudinally arranged at the lower end of the frame, a lower roller is arranged on the frame below the right of the upper roller, two ends of a cloth clamp positioned at the lower end of the frame are vertically and slidably arranged on the frame, the right surface of the lower roller and the center line of a cloth clamping opening of the cloth clamp positioned at the lower end of the frame are positioned in the same vertical plane, the upper end of a tension sensor is hung on the lower surface of the cloth clamp, a hook disc is hung at the lower end of the tension sensor, and a plurality of tensioning blocks are arranged on the hook disc; the tension sensor is connected with the industrial tablet personal computer.
The lower end of the knitted fabric is clamped in the cloth clamping opening of the cloth clamp after passing through the left surface of the upper roller and the right surface of the lower roller in sequence. The tension J1 at the lower end of the knitted fabric can be calculated through the tension sensor.
When the air blowing pipe blows air to the left side of the knitted fabric, the knitted fabric protrudes to the right, the protruding knitted fabric can block the laser lamp from shining to the photoelectric sensor, and the length K1 of the knitted fabric protruding to the right can be obtained according to the size of the optical signal value H detected by the photoelectric sensor. The knitted fabric bulges to the right because the air blowing pipe blows air to the left side of the knitted fabric. The air speed of the air blowing pipe for blowing air to the left side of the knitted fabric is set to be V1. When J1 is constant, the larger the value of V1 is, the larger the value of K1 is, the more light is blocked, and the smaller the light detected by the photosensor is.
Because V1 and J1 can be preset, under the condition that V1 and J1 are set values, the value of K1 can reflect the pit depth of the left surface of the knitted fabric; the deeper the pit depth, the larger the gap between the spinning lines of the knitted fabric at the pit is, so that more wind blown into the pit enters the first air receiving port through the knitted fabric. If the values of K1 are within the set values and the air flow penetration rate L1 is within the preset air flow penetration rate range, the air permeability of the knitted fabric is qualified, and otherwise, the air permeability of the knitted fabric is unqualified.
Preferably, the central line of the pipe orifice of the air blowing pipe, the central line of the first air receiving port, the central line of the second air receiving port and the central line of the third air receiving port all fall in the same vertical plane.
Preferably, a horizontal rotating motor is arranged on the frame, and an air blowing pipe of the air blowing mechanism, a second air receiving port of the air quantity detecting mechanism and a third air receiving port of the air quantity detecting mechanism are fixedly arranged on a rotating shaft of the horizontal rotating motor.
The rotating shaft of the horizontal rotating motor can drive the air blowing pipe, the second air receiving port and the third air receiving port to rotate together in the same horizontal plane, so that the angles among the air blowing pipe, the second air receiving port, the third air receiving port and the knitted fabric are easy to control.
Preferably, the included angle between the central line of the air blowing pipe and the central line of the second air receiving opening is smaller than 90 degrees, and the included angle between the central line of the air blowing pipe and the central line of the third air receiving opening is smaller than 90 degrees. Easy control and high reliability.
The invention can achieve the following effects:
the invention can detect the ventilation property and the heat preservation property of the knitted fabric and has high reliability.
Drawings
Fig. 1 is a schematic diagram of a connection structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of a connection structure of a knitted fabric according to an embodiment of the present invention in a use state, which is seen from the left side after the upper and lower ends are respectively fixed to the upper and lower fabric clamps.
Fig. 3 is a schematic view of a connection structure of a knitted fabric according to an embodiment of the present invention in a use state, which is seen from the right after the upper and lower ends are respectively fixed to the upper and lower fabric clamps.
Fig. 4 is a schematic view of a local connection structure in a use state according to an embodiment of the present invention.
Fig. 5 is a schematic view of a connection structure at a rotating ring according to an embodiment of the present invention.
Fig. 6 is a schematic view showing a connection structure of the blowing changing pipe provided on the rotating ring according to the embodiment of the present invention.
Fig. 7 is a schematic block diagram of a circuit schematic connection of an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The embodiment, the breathable detection device and the detection method of the low-twist super-soft high-comfort knitted fabric are shown in fig. 1-7, and comprise an industrial tablet computer 43, a frame 2, a fabric detection frame 6 which is driven by a first cylinder 7 to longitudinally move and is arranged on the frame, and further comprise an air blowing mechanism 34, an air quantity detection mechanism 46, a heating mechanism 44 and a heat detection mechanism 45 which are respectively arranged on the frame; the fabric detection frame comprises a blowing ventilation detection area 5 and a heating heat insulation detection area 4; the air blowing pipe 17 of the air blowing mechanism is opposite to the left side of the air blowing and ventilation detection area, the first air receiving port 19 of the air flow detection mechanism is opposite to the right side of the air blowing and ventilation detection area, the second air receiving port 16 of the air flow detection mechanism is arranged on the upper side of the air blowing pipe on the left side of the air blowing and ventilation detection area, and the third air receiving port 18 of the air flow detection mechanism is arranged on the lower side of the air blowing pipe on the left side of the air blowing and ventilation detection area; a heat insulation board 22 is arranged in the heating heat insulation detection area, a horn-shaped heat reflection cover 21 with an opening facing left is arranged on the left surface of the heat insulation board, a heat dissipation end 20 of the heating mechanism is arranged in the heat reflection cover, and a heat detection end 15 of the heat detection mechanism is opposite to the left side of the heat reflection cover; a cloth clamp 3 is arranged on the frame above the fabric detection frame, and a cloth clamp 11 is arranged on the frame below the fabric detection frame; a first motor 23 is arranged on the air blowing pipe, a rotating ring 25 is arranged on a rotating shaft 24 of the first motor, a plurality of air blowing changing pipes 26 are arranged on the rotating ring, and a spiral air guiding sheet 27 is arranged on the inner pipe wall of each air blowing changing pipe; each blowing changing pipe can be in one-to-one butt joint and pressed on an air outlet of the blowing pipe under the drive of a rotating shaft of a motor I; the control end of the first air cylinder, the control end of the air blowing mechanism, the control end of the air flow detection mechanism, the control end of the heating mechanism, the control end of the heat detection mechanism and the control end of the first motor are respectively connected with an industrial tablet computer.
The air blowing mechanism comprises a nitrogen storage tank 33, and an air inlet end of the air blowing mechanism is in butt joint connection with an air outlet of the nitrogen storage tank; the gas quantity detection mechanism comprises an out-of-tank nitrogen detector 37, three gas collection tanks 28 and an in-tank nitrogen detector 47 respectively arranged in the three gas collection tanks; the air inlets of the three air collection tanks are respectively connected with the air outlet pipes corresponding to the first air outlet, the second air outlet and the third air outlet in a butt joint way; the nitrogen detector outside the tank and the nitrogen detector in each tank are respectively connected with an industrial tablet computer.
A first in-tank nitrogen detector 30 is provided in a first one of the three gas collection tanks 29, a second in-tank nitrogen detector 32 is provided in a second one of the three gas collection tanks 31, and a third in-tank nitrogen detector 35 is provided in a third one of the three gas collection tanks 36.
And a wind speed sensor 38, a wind speed sensor 39 and a wind speed sensor 40 are respectively arranged in the air outlet pipes corresponding to the first air outlet, the second air outlet and the third air outlet of the air volume detection mechanism, and each wind speed sensor is respectively connected with an industrial tablet personal computer.
The upper end of the fabric detection frame is provided with a laser lamp 42 which irradiates vertically downwards, the lower end of the fabric detection frame is provided with a photoelectric sensor 41 which can receive the laser lamp, and the laser lamp and the photoelectric sensor are respectively connected with an industrial tablet computer; an upper roller 8 is longitudinally arranged at the lower end of the frame, a lower roller 9 is arranged on the frame below the right of the upper roller, two ends of a cloth clamp positioned at the lower end of the frame are vertically and slidably arranged on the frame, the right surface of the lower roller and the center line of a cloth clamping opening of the cloth clamp positioned at the lower end of the frame are positioned in the same vertical plane, the upper end of a tension sensor 12 is hung on the lower surface of the cloth clamp, a hook disc 1 is hung at the lower end of the tension sensor, and a plurality of tensioning blocks 13 are arranged on the hook disc; the tension sensor is connected with the industrial tablet personal computer.
The central line of the pipe orifice of the air blowing pipe, the central line of the first air receiving port, the central line of the second air receiving port and the central line of the third air receiving port are all in the same vertical plane.
The machine frame is provided with a horizontal rotation motor, and an air blowing pipe of the air blowing mechanism, a second air receiving port of the air quantity detection mechanism and a third air receiving port of the air quantity detection mechanism are fixedly arranged on a rotating shaft of the horizontal rotation motor.
The included angle between the central line of the air blowing pipe and the central line of the second air receiving opening is smaller than 90 degrees, and the included angle between the central line of the air blowing pipe and the central line of the third air receiving opening is smaller than 90 degrees. The industrial tablet personal computer can be of a CBW-T104S model.
The nitrogen content in the air outside the gas collection tank is collected by the nitrogen detector outside the tank, the nitrogen content in the gas collection tank is collected by the nitrogen detector inside the tank, and whether the air permeability of the knitted fabric is unqualified can be indirectly judged after comparison or calculation is performed between the nitrogen content detected by the nitrogen detector inside each tank and the nitrogen content detected by the nitrogen detector outside the tank.
The air inlet of the first gas collecting tank of the three gas collecting tanks is in butt joint connection with the air outlet pipe of the first air collecting port; an air inlet of a second gas collection tank in the three gas collection tanks is in butt joint connection with an air outlet pipe of the second air collection port; an air inlet of a third gas collecting tank in the three gas collecting tanks is in butt joint connection with an air outlet pipe of the third air collecting port.
Because the size of the gas blown out from the gas blowing pipe is settable. When the first air receiving port, the second air receiving port and the third air receiving port collect gas, air and nitrogen blown out from the air blowing pipe are collected into the corresponding three gas collecting tanks. Therefore, the air flow penetration rate L1 of the knitted fabric can be calculated by detecting the nitrogen content in the first air collecting tank. The reflectivity L2 on the air flow of the knitted fabric can be calculated by detecting the nitrogen content in the second gas collection tank. The reflectivity L3 of the knitted fabric under the air flow can be calculated by detecting the nitrogen content in the third gas collecting tank.
When the value H1 of the upper air flow reflectivity L2 divided by the lower air flow reflectivity L3 is more than or equal to a set value 1A and less than or equal to a set value 1.2A, judging that the air blown by the air blowing pipe is vertically blown to the knitted fabric, wherein A is a correction parameter of the set value; when the value H1 of the upper air flow reflectivity L2 divided by the lower air flow reflectivity L3 is larger than the set value 1.2A, the air blown by the air blowing pipe is judged to be blown upwards obliquely to the knitted fabric.
When the angle B of the air blown by the air blowing pipe, which is obliquely blown upwards to the knitted fabric, is larger than 150 degrees, if the value H2 of the air flow transmittance L1 divided by the air flow upper reflectivity L2 is larger than or equal to a set value 10A, and meanwhile, if the value H1 of the air flow upper reflectivity L2 divided by the air flow lower reflectivity L3 is smaller than or equal to a set value 15A, judging that the knitted fabric is qualified in air permeability, otherwise, judging that the knitted fabric is not qualified in air permeability.
The air flow entering the first air receiving port, the second air receiving port and the third air receiving port can be easily detected through the air speed sensor. The air flow detected by each air speed sensor is compared or calculated with the preset values among the air flow speeds of the first air receiving port, the second air receiving port and the third air receiving port, so that whether the air permeability of the knitted fabric is qualified can be judged more quickly. The method for detecting the air permeability of the knitted fabric is simple and has high reliability.
The lower end of the knitted fabric is clamped in the cloth clamping opening 10 of the cloth clamp 11 after passing through the left surface of the upper roller and the right surface of the lower roller in sequence. The tension J1 at the lower end of the knitted fabric can be calculated through the tension sensor.
When the air blowing pipe blows air to the left side of the knitted fabric 14, the knitted fabric protrudes to the right, the protruding knitted fabric can block the laser lamp from shining to the photoelectric sensor, and the length K1 of the knitted fabric protruding to the right can be obtained according to the size of the optical signal value H detected by the photoelectric sensor. The knitted fabric bulges to the right because the air blowing pipe blows air to the left side of the knitted fabric. The air speed of the air blowing pipe for blowing air to the left side of the knitted fabric is set to be V1. When J1 is constant, the larger the value of V1 is, the larger the value of K1 is, the more light is blocked, and the smaller the light detected by the photosensor is.
Because V1 and J1 can be preset, under the condition that V1 and J1 are set values, the value of K1 can reflect the pit depth of the left surface of the knitted fabric; the deeper the pit depth, the larger the gap between the spinning lines of the knitted fabric at the pit is, so that more wind blown into the pit enters the first air receiving port through the knitted fabric. If the values of K1 are within the set values and the air flow penetration rate L1 is within the preset air flow penetration rate range, the air permeability of the knitted fabric is qualified, and otherwise, the air permeability of the knitted fabric is unqualified.
The rotating shaft of the horizontal rotating motor can drive the air blowing pipe, the second air receiving port and the third air receiving port to rotate together in the same horizontal plane, so that the angles among the air blowing pipe, the second air receiving port, the third air receiving port and the knitted fabric are easy to control.
When the air permeability of the knitted fabric is detected, the upper end and the lower end of the knitted fabric are clamped through an upper cloth clamp and a lower cloth clamp which are arranged on a frame, and the knitted fabric is tensioned, so that a detection area of the knitted fabric is in a vertical plane;
then under the control of an industrial tablet personal computer, the air blowing pipe of the air blowing mechanism blows air to the knitted fabric in the air blowing ventilation detection area, the first air receiving port, the second air receiving port and the third air receiving port of the air flow detection mechanism collect air blown out by the air blowing pipe respectively, and the air flow rate of the collected air is detected by the air flow detection mechanism; determining whether the air permeability of the knitted fabric is qualified according to the detected air size; if the detected flow rate of the gas is within the design range, judging that the air permeability of the knitted fabric is qualified, otherwise, judging that the air permeability of the knitted fabric is unqualified;
the method comprises the steps of detecting the air permeability of the knitted fabric, and simultaneously starting a heat emitting end of a heating mechanism to emit heat to perform heating and heat insulation detection on the knitted fabric positioned in a heating and heat insulation detection area; if the heat detection mechanism detects that the heat transmitted from the side of the knitted fabric is within the design range, judging that the heat preservation property of the knitted fabric is qualified, otherwise, judging that the heat preservation property of the knitted fabric is unqualified;
and judging the knitted fabric with qualified air permeability and heat preservation as a qualified knitted fabric product.
When the air permeability of the knitted fabric is detected, the upper end and the lower end of the knitted fabric are clamped by an upper cloth clamp and a lower cloth clamp which are arranged on a frame, and the knitted fabric is tensioned, so that a detection area of the knitted fabric is in a vertical plane; at this time, the knitted fabric is positioned between the air blowing pipe and the first air receiving opening.
Then under the control of an industrial tablet personal computer, the air blowing pipe of the air blowing mechanism blows air to the knitted fabric in the air blowing ventilation detection area, the first air receiving port, the second air receiving port and the third air receiving port of the air flow detection mechanism collect air blown out by the air blowing pipe respectively, and the air flow rate of the collected air is detected by the air flow detection mechanism; determining whether the air permeability of the knitted fabric is qualified according to the detected air flow rate; if the detected gas flow rate is within the set value range, judging that the air permeability of the knitted fabric is qualified, otherwise, judging that the air permeability of the knitted fabric is unqualified;
the method comprises the steps of detecting the air permeability of the knitted fabric, and simultaneously starting a heat emitting end of a heating mechanism to emit heat to perform heating and heat insulation detection on the knitted fabric positioned in a heating and heat insulation detection area; if the heat detection mechanism detects that the heat transmitted from the side of the knitted fabric is within the range of the set value, judging that the heat preservation property of the knitted fabric is qualified, otherwise, judging that the heat preservation property of the knitted fabric is unqualified; and judging the knitted fabric with qualified air permeability and heat preservation as a qualified knitted fabric product. And then warehousing the qualified knitted fabric product.
Claims (1)
1. The low-twist super-soft high-comfort knitted fabric ventilation detection device comprises an industrial tablet personal computer and a rack and is characterized by further comprising a fabric detection rack which is driven by a first cylinder to longitudinally move and is arranged on the rack, and an air blowing mechanism, an air quantity detection mechanism, a heating mechanism and a heat detection mechanism which are respectively arranged on the rack; the fabric detection frame comprises a blowing ventilation detection area and a heating heat insulation detection area; the air blowing pipe of the air blowing mechanism is opposite to the left side of the air blowing and ventilation detection area, the first air receiving port of the air flow detection mechanism is opposite to the right side of the air blowing and ventilation detection area, the second air receiving port of the air flow detection mechanism is arranged above the air blowing pipe at the left side of the air blowing and ventilation detection area, and the third air receiving port of the air flow detection mechanism is arranged below the air blowing pipe at the left side of the air blowing and ventilation detection area; a heat insulation board is arranged in the heating heat insulation detection area, a horn-shaped heat reflection cover with an opening facing left is arranged on the left surface of the heat insulation board, the heat dissipation end of the heating mechanism is arranged in the heat reflection cover, and the heat detection end of the heat detection mechanism is opposite to the left side of the heat reflection cover; cloth clamps are respectively arranged on the machine frames positioned above and below the fabric detection frame; a first motor is arranged on the air blowing pipe, a rotating ring is arranged on a rotating shaft of the first motor, a plurality of air blowing changing pipes are arranged on the rotating ring, and a spiral air guide sheet is arranged on the inner pipe wall of each air blowing changing pipe; each blowing changing pipe can be in one-to-one butt joint and pressed on an air outlet of the blowing pipe under the drive of a rotating shaft of a motor I; the control end of the first air cylinder, the control end of the air blowing mechanism, the control end of the air flow detection mechanism, the control end of the heating mechanism, the control end of the heat detection mechanism and the control end of the first motor are respectively connected with an industrial tablet computer;
the air blowing mechanism comprises a nitrogen storage tank, and an air inlet end of the air blowing mechanism is in butt joint connection with an air outlet of the nitrogen storage tank; the gas quantity detection mechanism comprises a nitrogen detector outside the tank, three gas collection tanks and a nitrogen detector in the tank, wherein the nitrogen detector is respectively arranged in the three gas collection tanks; the air inlets of the three air collection tanks are respectively connected with the air outlet pipes corresponding to the first air outlet, the second air outlet and the third air outlet in a butt joint way; the nitrogen detector outside the tank and the nitrogen detector in each tank are respectively connected with an industrial tablet computer;
wind speed sensors are respectively arranged in the air outlet pipes corresponding to the first air outlet, the second air outlet and the third air outlet of the air volume detection mechanism, and each wind speed sensor is respectively connected with an industrial tablet computer;
the upper end of the fabric detection frame is provided with a laser lamp which irradiates vertically downwards, the lower end of the fabric detection frame is provided with a photoelectric sensor which can receive the laser lamp, and the laser lamp and the photoelectric sensor are respectively connected with an industrial tablet computer; an upper roller is longitudinally arranged at the lower end of the frame, a lower roller is arranged on the frame below the right of the upper roller, two ends of a cloth clamp positioned at the lower end of the frame are vertically and slidably arranged on the frame, the right surface of the lower roller and the center line of a cloth clamping opening of the cloth clamp positioned at the lower end of the frame are positioned in the same vertical plane, the upper end of a tension sensor is hung on the lower surface of the cloth clamp, a hook disc is hung at the lower end of the tension sensor, and a plurality of tensioning blocks are arranged on the hook disc; the tension sensor is connected with the industrial tablet computer;
the central line of the pipe orifice of the air blowing pipe, the central line of the first air receiving port, the central line of the second air receiving port and the central line of the third air receiving port are all in the same vertical plane;
a horizontal rotating motor is arranged on the frame, and an air blowing pipe of the air blowing mechanism, a second air receiving port of the air quantity detection mechanism and a third air receiving port of the air quantity detection mechanism are fixedly arranged on a rotating shaft of the horizontal rotating motor;
when the air permeability of the knitted fabric is detected, the upper end and the lower end of the knitted fabric are clamped by an upper cloth clamp and a lower cloth clamp which are arranged on a frame, and the knitted fabric is tensioned, so that a detection area of the knitted fabric is in a vertical plane;
then under the control of an industrial tablet personal computer, the air blowing pipe of the air blowing mechanism blows air to the knitted fabric in the air blowing ventilation detection area, the first air receiving port, the second air receiving port and the third air receiving port of the air flow detection mechanism collect air blown out by the air blowing pipe respectively, and the air flow rate of the collected air is detected by the air flow detection mechanism; determining whether the air permeability of the knitted fabric is qualified according to the detected air size; if the detected flow rate of the gas is within the design range, judging that the air permeability of the knitted fabric is qualified, otherwise, judging that the air permeability of the knitted fabric is unqualified;
the method comprises the steps of detecting the air permeability of the knitted fabric, and simultaneously starting a heat emitting end of a heating mechanism to emit heat to perform heating and heat insulation detection on the knitted fabric positioned in a heating and heat insulation detection area; if the heat detection mechanism detects that the heat transmitted from the side of the knitted fabric is within the design range, judging that the heat preservation property of the knitted fabric is qualified, otherwise, judging that the heat preservation property of the knitted fabric is unqualified; and judging the knitted fabric with qualified air permeability and heat preservation as a qualified knitted fabric product.
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| CN201811502536.8A CN109406368B (en) | 2018-12-10 | 2018-12-10 | Low-twist super-soft high-comfort knitted fabric ventilation detection device and detection method thereof |
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| CN201811502536.8A CN109406368B (en) | 2018-12-10 | 2018-12-10 | Low-twist super-soft high-comfort knitted fabric ventilation detection device and detection method thereof |
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| CN109406368B true CN109406368B (en) | 2023-10-20 |
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| CN110567856A (en) * | 2019-09-18 | 2019-12-13 | 陈涛 | Anion far infrared antibacterial bamboo charcoal fiber fabric detection machine |
| CN111351743B (en) * | 2020-03-31 | 2021-01-05 | 南通万仁服饰有限公司 | Equipment for detecting whether fabric permeability is qualified or not |
| CN111638163B (en) * | 2020-05-22 | 2023-06-02 | 利辛县佳辉服饰有限公司 | Knitted fabric air permeability detection device |
| CN113640193B (en) * | 2021-10-13 | 2021-12-17 | 南通铭源纺织有限公司 | High-efficient check out test set of textile fabric's gas permeability intelligence |
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