Testing device for air permeability of non-woven fabric

Abstract

The utility model discloses a non-woven fabric air permeability testing device which comprises a testing base, a cavity is formed in an inner cavity of the testing base, two electric telescopic rods are installed on the top of the testing base, a fixing plate is fixed between the tops of power output shafts of the two electric telescopic rods, and three testing assemblies are arranged on the fixing plate. The testing assembly comprises a fixing pipe fixedly penetrating through the fixing plate, a testing sleeve fixed at the top of the fixing pipe and a pressing ring fixed on a pipe body of the fixing pipe; by means of the designed multiple sets of testing assemblies and comparison sleeves, air permeability testing can be conducted on multiple non-woven fabrics at the same time, the testing efficiency can be improved, comparison with qualified non-woven fabrics pressed under the comparison sleeves is formed, and the testing efficiency is improved. And a worker can conveniently and intuitively observe the ventilation effect of the non-woven fabric, and the accuracy of a test result can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to non - woven test device technical field, concretely is a kind of non - woven air permeability testing device. BACKGROUND

[0002] Non - woven fabric is also called non - woven fabric, needle punching cotton, needle punching non - woven fabric etc., adopts polyester fiber, polyester fiber material production, is made by needle punching process, can be made into different thickness, hand feeling, hardness etc.Non - woven fabric is often tested by air permeability before flowing into market, to ensure that non - woven fabric product is qualified.

[0003] China public patent, application number CN202222831854.7, a kind of performance testing machine of breathable non - woven fabric, just mentioned "supporting block, the top of the supporting block is fixedly installed with placing block.The utility model discloses a fan, transparent scale cylinder and mouth paperboard are set, by rotating first threaded rod, so as to drive fixed block to move downwards to fix and close non - woven fabric, then due to the operation of fan, so as to extract the gas outside through suction pipe, and make filter screen filter dust to gas, then exhaust pipe blows the filtered gas to fixed non - woven fabric, and makes the gas through non - woven fabric blow transparent scale cylinder inside mouth paperboard, with the continuous blowing mouth paperboard, it will be stabilized at a certain height, at this time, the scale on transparent scale cylinder and the position of mouth paperboard can be judged the air permeability test result of the non - woven fabric".

[0004] In the above-mentioned patent technology, we found that, its main through the blowing height of mouth paperboard to judge the air permeability test of non - woven fabric, this way although can play certain test effect, but we find that the way still has certain defect in specific simulation use:

[0005] Since the above-mentioned device needs to twist first threaded rod to realize every time to press down or remove non - woven fabric, this will exist certain operation tediousness, at the same time, only one non - woven fabric can be tested by air permeability every time, efficiency is lower, and it is not convenient to compare the air permeability of qualified non - woven fabric.Therefore, it is necessary to design a kind of non - woven air permeability testing device with better test effect. UTILITY MODEL CONTENTS

[0006] The utility model is to overcome the above-mentioned situation shortage, aims at providing a kind of technical scheme that can solve the above-mentioned problem.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of non-woven fabric air permeability testing device, the inner cavity of the testing base is provided with cavity, the top of the two electric telescopic rods of the testing base is installed, and the top of the power output shaft of two electric telescopic rods is fixed with fixed plate, and three sets of test components are arranged on the fixed plate;The test component includes fixed tube fixed through the fixed plate, test sleeve fixed at the top of fixed tube and compression ring fixed on the pipe body of fixed tube;The inner top wall of the testing base and the position corresponding to each fixed tube is also fixed with gas outlet pipe one, and the bottom of the gas outlet pipe one is installed with gas pump one placed in the cavity;The inner cavity of the cavity is also provided with gas pump two, the gas outlet end of the gas pump two is communicated with gas outlet pipe two, and the top of the gas outlet pipe two is fixed to the top of the testing base, and the top of the gas outlet pipe two is connected with contrast sleeve.

[0008] As a further scheme of the utility model: the bottom of the fixed tube is fixed with sealing ring two, the top of the gas outlet pipe one is fixed with sealing ring three, and the sealing ring two and the sealing ring three are matched in size.

[0009] As a further scheme of the utility model: the bottom of the compression ring is lower than the bottom of sealing ring two, and the non-woven fabric to be tested is pressed between the compression ring and sealing ring two.

[0010] As a further scheme of the utility model: the bottom of the contrast sleeve is fixed with sealing ring one, the pipe body of the contrast sleeve is fixed with fixed disc, the fixed disc is fixed on the top of the testing base by bolt, and the bottom of the fixed disc is lower than the bottom of the sealing ring one.

[0011] As a further scheme of the utility model: the pipe body top of the gas outlet pipe two is provided with sealing ring four, and the qualified non-woven fabric is pressed between the sealing ring four and the sealing ring one.

[0012] As a further scheme of the utility model: the inner diameter of three test sleeves is same with the inner diameter of contrast sleeve, the inner diameter of three gas outlet pipes one is same with the inner diameter of gas outlet pipe two, the top of three test sleeves is provided with test balloon one, and the top of contrast sleeve is provided with test balloon two.

[0013] As a further scheme of the utility model: the air inlet end of three gas pumps one and gas pump two is communicated with air pipe with same inner diameter, and four air pipes are placed in the cavity.

[0014] As a further scheme of the utility model: the right side of the testing base is provided with window communicated with cavity, and filter screen is installed on the window by bolt, and double doors are also installed on the front of the testing base.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] I. In the application, through the design of multiple test components and the contrast sleeve, the air permeability of multiple non-woven fabrics can be tested at the same time, the test efficiency can be improved, and the contrast sleeve can be pressed together with the qualified non-woven fabric, so that the staff can intuitively observe the air permeability of the non-woven fabric, and the accuracy of the test result can be ensured.

[0017] II. In the application, through the design of the fixing plate, the electric telescopic rod and the test component, the test component can be automatically lifted each time the non-woven fabric is tested, the staff can conveniently place the non-woven fabric to be tested under the test component, and the operation is simple and time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 is the front view structure schematic diagram of the test base of the utility model;

[0020] Figure 3 is the A place enlarged structure schematic diagram in the utility model Figure 2 ;

[0021] Figure 4 is the B place enlarged structure schematic diagram in the utility model Figure 2 ;

[0022] Figure 5 is the structure schematic diagram of the fixing plate of the utility model after being lifted by the electric telescopic rod drive;

[0023] Figure 6 is the front view structure schematic diagram when the utility model starts testing.

[0024] The reference signs and names in the drawings are as follows:

[0025] 1, test base; 2, filter screen; 3, contrast sleeve; 301, sealing ring I; 4, fixed disc; 5, electric telescopic rod; 6, fixing plate; 7, test sleeve; 8, fixed tube; 9, pressure ring; 10, sealing ring II; 11, cavity; 12, air pump I; 13, air outlet pipe I; 1301, sealing ring III; 14, air pump II; 15, air outlet pipe II; 1501, sealing ring IV; 16, double door; 17, test balloon I; 18, test balloon II. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Please refer to Figures 1-6 The application discloses a kind of non-woven fabric air permeability testing device, including test base 1, the inner cavity of test base 1 is provided with cavity 11, the top of test base 1 is equipped with two electric telescopic rods 5, the top of the power output shaft of two electric telescopic rods 5 is fixed with fixed plate 6, three sets of test assemblies are arranged on fixed plate 6;Test assembly includes fixed tube 8 fixedly penetrating fixed plate 6, test sleeve 7 fixed at the top of fixed tube 8 and compression ring 9 fixed on the pipe body of fixed tube 8;The inner top wall of test base 1 and the position corresponding to each fixed tube 8 is also fixed with air outlet pipe one 13, air pump one 12 in cavity 11 is installed in the bottom of air outlet pipe one 13;The inner cavity of cavity 11 is also provided with air pump two 14, the air outlet end of air pump two 14 is communicated with air outlet pipe two 15, air outlet pipe two 15 is fixedly penetrated to the top of test base 1, and air outlet pipe two 15 is butt jointed with contrast sleeve 3 at the top.

[0028] Please refer to Figure 2 And Figure 4 In the embodiment, the bottom of fixed tube 8 is fixed with sealing ring two 10, the top of air outlet pipe one 13 is fixed with sealing ring three 1301, and sealing ring two 10 and sealing ring three 1301 are appropriately sized;The bottom of compression ring 9 is lower than the bottom of sealing ring two 10, and the non-woven fabric to be tested is pressed between compression ring 9 and sealing ring two 10.

[0029] Specifically, after sealing ring three 1301 and sealing ring two 10 are closed, the communication between fixed tube 8 and air outlet pipe one 13 can be realized, and the air tightness of the communication place can be maintained. At the same time, the bottom of compression ring 9 is lower than the bottom of sealing ring two 10, and when sealing ring two 10 is pressed, compression deformation effect can occur, i.e. it can be compressed to the state of being flush with the bottom of compression ring 9. Through the compression deformation of sealing ring two 10, the sealing effect at this place and the stable pressing of the non-woven fabric to be tested can be ensured.

[0030] Please refer to Figure 1 , Figure 2 And Figure 3In the embodiment, the bottom of the contrast sleeve 3 is fixed with a sealing ring one 301, the sleeve body of the contrast sleeve 3 is fixed with a fixed disc 4, the fixed disc 4 is fixed on the top of the test base 1 through bolts, and the bottom of the fixed disc 4 is lower than the bottom of the sealing ring one 301; the top of the pipe body of the outlet pipe two 15 is sleeved with a sealing ring four 1501, and the qualified non-woven fabric is pressed between the sealing ring four 1501 and the sealing ring one 301.

[0031] Specifically, the fixed disc 4 can be disassembled from the top of the test base 1, that is, the qualified non-woven fabric is convenient for workers to install or replace, and the bottom of the fixed disc 4 is lower than the bottom of the sealing ring one 301, when the bolts on the fixed disc 4 are tightened, the sealing ring one 301 can be compressed and deformed, that is, it can be compressed to the same level as the bottom of the fixed disc 4, and through the compression and deformation of the sealing ring one 301, the sealing effect and the pressing stability of the qualified non-woven fabric can be ensured.

[0032] Please refer to Figure 2 and Figure 6 In the embodiment, the inner diameters of the three test sleeves 7 are the same as that of the contrast sleeve 3, the inner diameters of the three outlet pipes one 13 are the same as that of the outlet pipe two 15, the top of the three test sleeves 7 is sleeved with a test balloon one 17, and the top of the contrast sleeve 3 is sleeved with a test balloon two 18.

[0033] Specifically, the inner diameters of the test sleeve 7 and the contrast sleeve 3 are the same, and the inner diameters of the outlet pipe one 13 and the outlet pipe two 15 are the same, which can ensure that the air volume passing through them is the same, and ensure the accuracy of the test, the test balloon one 17 is used to feedback the effect of testing non-woven fabric, and the test balloon two 18 is used to form a contrast.

[0034] Please refer to Figure 2 In the embodiment, the air inlet ends of the three air pumps one 12 and the air pump two 14 are communicated with air pipes with the same inner diameter, and the four air pipes are arranged in the cavity 11.

[0035] Specifically, the three air pumps one 12 can use air pumps of the same model and power to ensure that the air volume is the same and the test is accurate, and the air pipes are arranged in the cavity 11, which can facilitate the air pumping of the three air pumps one 12 and the air pump two 14.

[0036] Please refer to Figure 1 and Figure 2 In the embodiment, a window communicating with the cavity 11 is formed on the right side of the test base 1, and a filter screen 2 is installed on the window through bolts, and a double-door 16 is also installed on the front of the test base 1.

[0037] Specifically, the bolted filter screen 2 is used for the circulation of air inside the cavity 11, filters out the dust from the outside and enables the disassembly and cleaning of the filter screen 2, and the double-open door 16 on the front of the test base 1 can realize the opening of the maintenance of the air pump one 12 and the air pump two 14. In order to ensure the sealing between the double-open door 16 and the test base 1, a sealing rubber strip can also be arranged on the double-open door 16.

[0038] Preparation: First, the qualified non-woven fabric is placed above the air outlet pipe two 15, and is straightened, and the comparison sleeve 3 is fixed on the test base 1 through the bolts on the fixing disc 4, and the comparison sleeve 3 is in communication with the air outlet pipe two 15, at this time, the sealing ring one 301 and the sealing ring four 1501 are aligned, the non-woven fabric between the air outlet pipe two 15 and the comparison sleeve 3 is compressed and stable, and the sealing between the air outlet pipe two 15 and the comparison sleeve 3 is maintained, then the two electric telescopic rods 5 are started, the power output shaft of the electric telescopic rod 5 is extended, and the fixed plate 6 is lifted to drive the bottom of the fixed pipe 8 away from the top of the air outlet pipe one 13, then three batches (different batches) of non-woven fabrics are placed on the top of the three air outlet pipes one 13, and are straightened, then the power output shaft of the electric telescopic rod 5 is retracted, and as the sealing ring two 10 and the sealing ring three 1301 approach each other, the non-woven fabric is compressed, and as the continuous pressure is continued, the sealing ring two 10 is compressed and deformed, which enhances the stability of the compressed non-woven fabric and the sealing between the fixed pipe 8 and the air outlet pipe one 13, until the bottom of the compression ring 9 is compressed on the top of the test base 1, and the compression ring 9 is used to compress the corners of the non-woven fabric;

[0039] During the test, three test balloons one 17 are sleeved on the three test sleeves 7, and can be fastened on the pipe opening of the test sleeve 7 using a clamp to ensure the firmness of the test balloons one 17 on the test sleeve 7, and the test balloon two 18 is sleeved on the pipe opening of the comparison sleeve 3 and is fastened using a clamp;

[0040] At the same time, start three air pumps, air pump one 12 and air pump two 14, air pump one 12 sends air to the air pipe one 13, and enters the test sleeve 7 after the tested non-woven fabric, air pump two 14 sends air to the air pipe two 15, and enters the contrast sleeve 3 after the qualified non-woven fabric, because the bottom of the contrast sleeve 3 is the qualified non-woven fabric, so the inflation degree of the test balloon two 18 on the contrast sleeve 3 can be observed, and the three test sleeves 7 are at the bottom of the non-woven fabric being tested whether qualified, so whether the test balloon one 17 on the three test sleeves 7 is the same as the inflation degree of the test balloon two 18 can be observed, if any test balloon one 17 on the test sleeve 7 is more inflated or more shrunk compared with the test balloon two 18, it indicates that the non-woven fabric corresponding to the bottom of the test sleeve 7 is unqualified, if the inflation degree of the test balloon one 17 on the test sleeve 7 is the same as that of the test balloon two 18, it indicates that the non-woven fabric corresponding to the bottom of the test sleeve 7 is qualified, and the specific judgment standard can be determined according to the actual situation.

[0041] It should be noted that the device can be used continuously, that is, the qualified non-woven fabric under the contrast sleeve 3 can always be used as a control, when more non-woven fabrics need to be tested subsequently, the staff only needs to start the electric telescopic rod 5, take off the non-woven fabric at the bottom of the test sleeve 7 and then put on the new non-woven fabric to be tested, this way of testing is more efficient, more non-woven fabrics can be tested at one time, and the test result is more intuitive and can form a contrast, which is more convenient to record.

[0042] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the foregoing description, and it is intended to encompass all changes falling within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A device for testing the air permeability of a nonwoven fabric, characterized by Including test base (1), the inner cavity of test base (1) is provided with cavity (11), the top of two electric telescopic rods (5) is fixed with fixed plate (6) between the top of power output shaft, three sets of test assemblies are arranged on fixed plate (6); The test assembly includes a fixed tube (8) penetrating through the fixed plate (6), a test sleeve (7) fixed on the top of the fixed tube (8), and a compression ring (9) fixed on the tube body of the fixed tube (8); The inner top wall of the test base (1) is also fixed with an air outlet pipe (13) corresponding to each fixed tube (8), and the bottom of the air outlet pipe (13) is installed with an air pump (12) in the cavity (11); The inner cavity of the cavity (11) is also provided with an air pump (14), the air outlet end of the air pump (14) is communicated with an air outlet pipe (15), the top of the air outlet pipe (15) is fixedly penetrated to the top of the test base (1), and the top of the air outlet pipe (15) is butt jointed with a contrast sleeve (3).

2. The device for testing the air permeability of a nonwoven fabric according to claim 1, wherein The bottom of the fixed tube (8) is fixed with a sealing ring (10), the top of the air outlet pipe (13) is fixed with a sealing ring (1301), and the sealing ring (10) and the sealing ring (1301) are adaptively sized.

3. The device of claim 1, wherein the device is configured to measure the air permeability of a nonwoven fabric. The bottom of the compression ring (9) is lower than the bottom of the sealing ring (10), and the non-woven fabric to be tested is pressed between the compression ring (9) and the sealing ring (10).

4. The device of claim 1, wherein The bottom of the contrast sleeve (3) is fixed with a sealing ring (301), the tube body of the contrast sleeve (3) is fixed with a fixed disc (4), the fixed disc (4) is fixed on the top of the test base (1) by bolts, and the bottom of the fixed disc (4) is lower than the bottom of the sealing ring (301).

5. The device of claim 1, wherein the device is configured to measure the air permeability of a nonwoven fabric. The tube body top of the air outlet pipe (15) is sleeved with a sealing ring (1501), and the qualified non-woven fabric is pressed between the sealing ring (1501) and the sealing ring (301).

6. The device of claim 1, wherein the device is configured to measure the air permeability of a nonwoven fabric. The inner diameters of the three test sleeves (7) are the same as the inner diameter of the contrast sleeve (3), the inner diameters of the three air outlet pipes (13) are the same as the inner diameter of the air outlet pipe (15), the top of the three test sleeves (7) is sleeved with a test balloon (17), and the top of the contrast sleeve (3) is sleeved with a test balloon (18).

7. The device of claim 1, wherein the device is configured to measure the air permeability of a nonwoven fabric. The air inlet ends of the three air pumps (12) and the air pump (14) are communicated with air pipes with the same inner diameter, and the four air pipes are arranged in the cavity (11).

8. The device of claim 1, wherein, The right side of the test base (1) is provided with a window communicating with the cavity (11), and the window is installed with a filter screen (2) by bolts, and the front of the test base (1) is also installed with a double door (16).

Images