KR102174605B1 - Auto air permeability tester - Google Patents

Abstract

In the present invention, the air permeability tester measures the breathability of fabrics and filters of many types of textile products including fabrics, nonwovens, knits, etc. under the same pressure, as well as automatically and quickly and accurately replacing nozzles of different sizes. It is characterized in that errors that may occur due to manual nozzle replacement work are improved, and various test standards can be tested by providing clamps for fixing samples of various sizes.

Description

Air permeability tester {Auto air permeability tester}

The present invention measures the breathability of fabrics and filters of many types of textile products, including fabrics, nonwovens, knits, etc., under the same pressure, as well as automatically and quickly and accurately replacing nozzles of different sizes. It relates to an air permeability tester that can test various test standards by improving errors that may occur due to replacement work, and providing clamps for fixing samples of various sizes.

In general, air permeability refers to what occurs due to a pressure difference or a difference in concentration between both sides of the membrane while air passes through the porous membrane, and thus, the air permeability of a textile product means the degree to which air penetrates the fabric.

The air permeability test on the fabric is a method of measuring the amount of air permeated or the air flow rate for a certain area for a certain time by allowing air to pass vertically under a certain area and pressure of the fabric.

In addition, recently, air permeability of masks and filters is measured and classified according to numerical values.

Meanwhile, an air permeability tester is used to measure the air permeability of a filter including fabric and mask of a textile product.

The air permeability tester is a specialized equipment capable of accurately testing the resistance of air flow passing through a filter surface including a fiber product and a mask under conditions of a certain area and pressure of a filter including a fiber product and a mask.

Conventional air permeability tester has a clamp that fixes the fabric, including fabric, non-woven fabric, knit, etc., in a membrane shape so as not to move, and a supply pipe that provides air flow in a straight line at the bottom of the clamp. And, the supply pipe is composed of a nozzle part for injecting air supplied from the blower and a brush for supplying air, and the air permeability is measured under the same pressure.

The air permeability tester is installed by replacing nozzles of different sizes in the nozzle part so that the pressure of the air can be measured by differently.

In order to replace the nozzle, the operator manually separates and couples the nozzle part from the supply pipe, and if the nozzle is not accurately located in the center inside the supply pipe, there is a problem that many errors and errors occur in measuring the air permeability.

In addition, whenever the operator manually replaces the nozzle, there is a problem that the replacement operation is not made quickly because the replacement operation is cumbersome.

Korean Patent Application No. 10-2006-0058369 "Air Permeability Test Device for Tire Inner Rubber" Korean Patent Application No. 10-2005-0035890 "Performance measuring device of fiber filter for air purification"

The present invention for solving the above problems is to prevent errors and errors due to manual operation by automatically replacing nozzles of different sizes instead of manually replacing nozzles of the air permeability tester to measure breathability. It aims to be.

In the air permeability tester of the present invention as a means of solving the above problems, a part of the nozzle rotation table is located as a nozzle insertion hole located between the upper and lower nozzle pipes, and nozzles of different sizes are arranged in a circular shape on the upper surface of the nozzle rotation table, and the nozzle rotates. The nozzle motor is located in the lower part of the table, connected by the nozzle shaft, and then the nozzle selected by rotation of the nozzle rotation table by the driving of the nozzle motor is located between the upper and lower nozzle pipes, and the wind blown from the ring blower passes. When changing the nozzle size, there is provided an air permeability tester, characterized in that the nozzle rotation table is rotated to position and change the nozzle into the nozzle insertion hole of the upper and lower nozzle pipes.

As described above, the air permeability tester of the present invention measures the breathability of fabrics and filters of many types of textile products including fabrics, nonwovens, knits, etc. under the same pressure, as well as when measuring with nozzles of different sizes, as in the prior art. Instead of measuring air permeability by separating it from the upper and lower nozzle pipes, and measuring the air permeability, nozzles of different sizes are arranged in a circular shape on the nozzle rotation table, and the nozzle is moved between the upper and lower nozzle pipes by rotation of the nozzle motor. By measuring the air permeability by positioning it with the nozzle insertion hole located at the location, the replacement work is automatically carried out quickly and accurately to improve errors that may occur due to the manual nozzle replacement work, and various test standards by providing clamps for fixing samples of various sizes. There is an effect that can be tested.

1 is a perspective view showing the present invention air permeability tester.
Figure 2 is an exploded perspective view showing the present invention air permeability tester.
Figure 3 is a side view showing the present invention air permeability tester.
Figure 4 is a perspective view with a housing removed from the air permeability tester of the present invention.
Figure 5a, b is a perspective view showing a connected state of the measuring sensor in the air permeability tester of the present invention.
Figure 6a, b is a perspective view showing the operating state of the clamp in the air permeability tester of the present invention.
7 is a perspective view showing an upper clamp part in the air permeability tester of the present invention.
8 is an exemplary view showing an upper clamp part in the air permeability tester of the present invention.
9 is a perspective view showing an upper clamp part of different sizes in the air permeability tester of the present invention.
10 is a perspective view showing a lower clamp part of different sizes in the air permeability tester of the present invention.
11 is a plan view showing a nozzle rotation table in the air permeability tester of the present invention.

In order to achieve the above objects and effects, the present invention will be described in detail below with reference to the accompanying drawings.

1 is a perspective view showing the present invention air permeability tester, Figure 2 is an exploded perspective view showing the present invention air permeability tester, Figure 3 is a side view showing the present invention air permeability tester, Figure 4 is the present invention Inventive air permeability tester is a perspective view with the housing removed, Figures 6a and b are perspective views showing the operating state of the clamp in the air permeability tester of the present invention, Figure 7 is a perspective view showing the upper clamp part in the air permeability tester of the present invention 8 is an exemplary view showing an upper clamp part in the air permeability tester of the present invention.

The air permeability tester of the present invention measures the breathability of fabrics and filters of many types of textile products including fabrics, nonwovens, knits, etc. under the same pressure, as well as automatically replacing nozzles of different sizes to measure the breathability. It is a configuration that improves errors that may occur due to nozzle replacement work and provides convenience to test various test standards by providing clamps for fixing samples of various sizes.

The air permeability tester is largely composed of a control unit, a clamp upper and lower operation unit, a clamp, a nozzle unit, a blower unit, a ring blower, and a sensor unit inside and outside the housing.

The housing has a rectangular frame-shaped frame and a cover is coupled in all directions of the frame to seal the interior.

In addition, the upper nozzle attachment plate and the lower nozzle attachment plate are installed horizontally inside the housing in a state where the upper nozzle attachment plate and the lower nozzle attachment plate are separated from each other, and an attachment plate support is erected at each corner between the upper and lower nozzle attachment plates to support the upper nozzle attachment plate. do.

In the housing 32, a ring blower 2 is installed under the lower nozzle attachment plate to blow wind through the upper and lower nozzle pipes 14 and 15.

The air blower 43 connected to the ring blower 2 is positioned at the elbow pipe connected to the air outlet of the ring blower 2 in a vertical direction and then connects the lower part to the lower part, and the lower foam rubber packing ( 21) is combined.

The lower nozzle pipe 15 is connected by a nipple to facilitate disassembly and coupling.

Accordingly, the lower nozzle pipe 15 is inserted and protruded into the lower nozzle attachment plate 36 and fixed.

In addition, the upper nozzle pipe 14 is located in a vertical line at the top so as to be connected with the lower foam rubber packing 21 of the lower nozzle pipe 15, and the upper nozzle pipe 14 is inserted into the upper nozzle attachment plate 35 It protrudes and is fixed.

The upper foam rubber packing 20 is fitted in the lower part of the upper nozzle pipe 14, the upper part is combined with the lower clamp part 12, and a nozzle inserted between the upper and lower foam rubber packings 20 and 21 A nozzle selected by rotation among a plurality of nozzles 22 formed on the nozzle rotation table 19 between the upper and lower nozzle pipes 14 and 15, and a part of the nozzle rotation table 19 is positioned and rotated with the ball 23 22 is positioned to form a blower 43 through which wind blown from the ring blower 2 blows to the upper nozzle pipe 14 through the lower nozzle pipe 15 and the nozzle 22.

In addition, a nozzle part 5 is installed inside the housing 32, and the nozzle part 5 rotates by being connected to a nozzle motor 29 having a drive shaft in the upper direction and a drive shaft of the nozzle motor 29. The nozzle shaft 18 and a nozzle rotation table that rotates by being partially positioned in the nozzle insertion hole 23 formed between the upper and lower foam rubber packings 20 and 21 by being coupled to rotate on the upper part of the nozzle shaft 18 ( 19) is located.

A plurality of nozzles 22 drilled differently in size are arranged in a circle on the upper surface of the nozzle rotation table 19, and the nozzle 22 selected by rotation of the rotary nozzle table 19 is positioned in the nozzle insertion hole 23, or Or, it is automatically replaced with another nozzle 22, and wind passes through the upper nozzle pipe 14.

In addition, as shown in FIG. 11, nozzle position detection sensor holes 44 are formed to protrude on the upper surface of the edge of the nozzle rotation table 1 so that the nozzle 22 located in the nozzle insertion hole 23 can be identified. .

In the state where the nozzles 22 arranged in a circle with the nozzle shaft 18 located at the center of the nozzle rotation table 1 are divided, the corresponding nozzle 22 is displayed at the edge where the nozzle 22 is located. The nozzle position detection sensor hole 44 is formed, and in order to recognize this, a detection sensor bracket is installed inside the housing adjacent to the upper and lower nozzle pipes.

A nozzle position detection sensor is attached to the detection sensor bracket so as to be positioned above the nozzle rotation table so as to detect a portion of the nozzle position detection sensor hole exposed to the outside from the nozzle rotation table 1 inserted into the nozzle insertion hole.

When the nozzle position detection sensor is installed as described above, the nozzle inserted into the nozzle hole can be accurately detected.

In addition, the clamp 4 connected to the upper nozzle pipe 14 is largely composed of upper and lower clamp portions.

The upper portion of the upper nozzle pipe 14 is coupled to the lower portion of the lower clamp portion 12, the upper portion of the lower clamp portion 12 coupled to be positioned on the upper surface of the housing 32, and the lower clamp portion 12. It is located at the top and is formed of an upper clamp part 11 that fixes the fabric located on the upper surface of the lower clamp part 12 by vertical operation.

The upper clamp part 11 is composed of an upper clamp piece 39 and a lower clamp piece 40, and is seated and separated on the upper surface of the lower clamp part 12, and a guide groove is provided at regular intervals inside the upper edge. When the lower clamp piece 40 is formed and is positioned above the lower clamp piece 40, a plurality of guide pins that are inserted into a guide groove to move up and down are formed on the bottom surface, and the ends of the guide pins interfere with the guide groove. In the state where it is completely prevented from being separated, a pressure spring 13 is inserted into the guide groove through the outer circumferential surface of the guide pin, and the assembly protrusion is formed to protrude horizontally on one side of the outer circumferential surface. It is formed of an upper clamp piece 39 that is separated and coupled with.

When the clamp up and down operation part 3 is lowered, the upper clamp part 11 also descends while the upper and lower clamp pieces 39 and 40 are spaced apart from each other when lowering, and when the upper clamp part 12 is seated on the upper surface of the lower clamp part 12, the upper clamp part 11 When the piece 39 descends, the pressure spring 13 and the guide pin are inserted into the guide groove to press the upper surface of the lower clamp piece 40, and conversely, when the upper and lower clamping parts 3 rise, the pressure spring 13 It is a structure in which the upper and lower clamp pieces 39 and 40 are separated from each other by elastic force and rises.

The clamp upper and lower operation unit 3 installed on the upper surface of the housing 32 is separated and coupled to one side of the upper clamp unit 11 to operate the upper clamp unit 11 in the vertical direction.

The clamp up and down operation part 3 has a base 9 installed on the upper surface of the housing 32, and a pair of left and right support racks 6 and 6'with long holes formed in the upper part of the base 9 are installed. And, a connecting piece 7 is attached to the upper part to connect the left and right support racks 6 and 6', and the lifting operation shaft horizontally inserted into a long hole formed in the left and right support racks 6 and 6' (42) And, a tension spring (8) is located between the rear end of the lifting operation shaft (42) and the pedestal (9), the upper part is connected to the lifting operation shaft (42), the lower part is connected to the pedestal (9), An assembly groove is formed in the front end of the lifting operation shaft 42 to fit the assembly protrusion of the upper clamp part 11, and an electromagnet 10 is installed between the left and right support racks 6 and 6'. When power is supplied to the electromagnet 10, the lifting operation shaft 42 is pulled downward by magnetic force to descend. When the power supply is cut off, the lifting operation shaft 42 is raised by the elastic force of the tension spring 8. Return to original state.

In addition, a sensor unit is installed inside the housing 32, and the wire detail unit is connected to a wind pressure transformer 28 installed at least one to measure air permeability, and the wind pressure transformer 28 is connected by a tube 33, respectively, to The upper clamp sensor 24 installed in the part 11, the lower clamp sensor 25 installed in the lower clamp part 12, the upper nozzle pipe sensor 26 installed in the upper nozzle pipe 14, the lower part installed in the lower nozzle pipe It consists of a nozzle tube sensor (27).

As described above, by measuring each of the upper clamp sensor 24, the lower clamp sensor 25, the upper nozzle pipe sensor 26, and the lower nozzle pipe sensor 27, it is possible to accurately measure wind pressure and air permeability.

In addition, the upper part of the housing 32 includes a control unit 37 that controls the operation of each component and measures the wind pressure, so that the nozzle 22 located in the nozzle insertion hole 23 is rotated by the nozzle rotation table 19. It is a configuration that is automatically replaced by.

Figures 5a, b is a perspective view showing a connected state of the measuring sensor in the air permeability tester of the present invention.

The sensor unit of the air permeability tester of the present invention is connected by a wind pressure transformer 28 and a tube 33, respectively, and the upper clamp sensor 24 installed in the upper clamp unit 11, and the lower clamp sensor installed in the lower clamp unit 12 ( 25), the upper nozzle pipe sensor 26 installed in the upper nozzle pipe 14, and the lower nozzle pipe sensor 27 installed in the lower nozzle pipe, for measurement.

Since a part of the nozzle rotation table is inserted into the nozzle insertion hole located between the upper and lower foam rubber packings and rotated, wind passes through when the nozzle is positioned in the nozzle insertion hole by rotation of the nozzle motor.

The nozzle position detection sensor detects the nozzle position detection sensor hole exposed to the outside of the nozzle insertion hole and checks the nozzle inserted into the nozzle insertion hole.

Therefore, the air permeability tester measures wind pressure and air permeability by replacing nozzles by rotating the nozzle rotation table without removing and combining nozzles of different sizes from the upper and lower nozzle pipes.

9 is a perspective view showing an upper clamp portion having different sizes in the air permeability tester of the present invention, and FIG. 10 is a perspective view showing a lower clamp portion having different sizes in the air permeability tester of the present invention, wherein the clamp is an upper and lower clamp portion. In the process of measuring wind pressure and air permeability by configuring each with different sizes, it provides convenience to users by replacing the clamp with the nozzle rotating table as it is.

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1: air permeability tester 2: ring blower
3: clamp upper and lower operating part 4: clamp
5: Nozzle part 6, 6': left and right support rack
7: connecting piece 8: tension spring
9: base 10: electromagnet
11: upper clamp part 12: lower clamp part
13: pressure spring 14: upper nozzle tube
15: lower nozzle pipe 16: detection sensor bracket
17: nozzle position detection sensor 18: nozzle shaft
19: nozzle rotation table 20: upper foam rubber packing
21: lower foam rubber packing 22: nozzle
23: nozzle insertion hole 24: upper clamp sensor
25: lower clamp sensor 26: upper pipe nozzle sensor
27: lower pipe nozzle sensor 28: wind pressure transformer
29: nozzle motor 30: sensor bracket
31: cover 32: housing
33: tube 34: frame
35: upper nozzle attachment plate 36: lower nozzle attachment plate
37: control unit
39: upper clamp piece 40: lower clamp piece
41: mounting plate support 42: lifting operation shaft
43: air blower 44: nozzle position detection sensor hole

Claims (4)

delete delete delete A housing 32 formed of a frame 34 and a cover 31 to measure breathability of fabrics and filters of many types of textile products including fabrics, nonwovens, knits, etc. under the same pressure; and
A ring blower (2) installed in the housing (32) to blow wind through the upper and lower nozzle pipes (14, 15); Wow
The ring blower (2) and the other end connected to one end to be connected to the lower nozzle pipe (15) to which the lower foam rubber packing (21) is coupled, and the lower foam rubber packing (21) of the lower nozzle pipe (15) The upper foam rubber packing (20) is fitted in the lower part, the lower clamp part (12) is fitted in the upper part, and the nozzle rotation table is formed with the nozzle insertion hole (23) formed between the upper and lower foam rubber packings (20, 21). (19) A part is positioned and rotated, and a nozzle 22 selected by rotation is positioned among the plurality of nozzles 22 formed on the nozzle rotation table 19 between the upper and lower nozzle pipes 14 and 15. (2) a blower 43 for blowing the wind blown from the lower nozzle pipe 15 and the nozzle 22 to the upper nozzle pipe 14; Wow
Inside the housing 32, a nozzle motor 29 having a drive shaft located in the upper direction, a nozzle shaft 18 connected to the drive shaft of the nozzle motor 29 to rotate, and a nozzle shaft 18 rotated above the nozzle shaft 18 A nozzle rotation table 19 that rotates by being partially located in the nozzle insertion hole 23 formed between the upper and lower foam rubber packings 20 and 21, and the upper surface of the nozzle rotation table 19 is drilled differently in size. The nozzle 22 selected by rotation of the rotating nozzle table 19 is positioned in the nozzle insertion hole 23 by arranging the plurality of nozzles 22 in a circular shape, or the upper nozzle tube is automatically replaced with another nozzle 22 (14) a nozzle part 5 through which the wind passes; Wow
The upper portion of the upper nozzle pipe 14 is coupled to the lower portion of the lower clamp portion 12, the upper portion of the lower clamp portion 12 coupled to be positioned on the upper surface of the housing 32, and the lower clamp portion 12. A clamp 4 made of an upper clamp part 11 which is located at the top and fixes the fabric located on the upper surface of the lower clamp part 12 by vertical operation; Wow
A clamp up and down operation part 3 installed on the upper surface of the housing 32 and separated and coupled to one side of the upper clamp part 11 to operate the upper clamp part 11 in the vertical direction; Wow
Inside the housing 32, at least one wind pressure transformer 28 is installed to measure air permeability, and the wind pressure transformer 28 is connected by a tube 33 and an upper clamp sensor installed in the upper clamp part 11 ( 24), a sensor unit consisting of a lower clamp sensor 25 installed on the lower clamp unit 12, an upper nozzle tube sensor 26 installed on the upper nozzle tube 14, and a lower nozzle tube sensor 27 installed on the lower nozzle tube ; Wow
The upper part of the housing 32 is composed of a control unit 37 that controls the operation of each component and measures the wind pressure, so that the nozzle 22 located in the nozzle insertion hole 23 is rotated by the rotation of the nozzle rotation table 19. In the air permeability tester that automatically replaces,
The clamp up and down operation part 3 has a base 9 installed on the upper surface of the housing 32, and a pair of left and right support racks 6 and 6'with long holes formed in the upper part of the base 9 are installed. And, a connecting piece 7 is attached to the upper part to connect the left and right support racks 6 and 6', and the lifting operation shaft horizontally inserted into a long hole formed in the left and right support racks 6 and 6' (42) And, a tension spring (8) is located between the rear end of the lifting operation shaft (42) and the pedestal (9), the upper part is connected to the lifting operation shaft (42), the lower part is connected to the pedestal (9), An assembly groove is formed in the front end of the lifting operation shaft 42 to fit the assembly protrusion of the upper clamp part 11, and an electromagnet 10 is installed between the left and right support racks 6 and 6'. When power is supplied to the electromagnet 10, the lifting operation shaft 42 is pulled downward by magnetic force to descend. When the power supply is cut off, the lifting operation shaft 42 is raised by the elastic force of the tension spring 8. Air permeability tester, characterized in that returning to the original state.

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