Adjustable down feather bag static tester

Abstract

An adjustable down feather bag static tester relates to the field of textile detection equipment and comprises a base, a rotating mechanism, a test platform, a clamping mechanism, a corona charging mechanism, a turnover mechanism and a friction mechanism. The testing platform is arranged at the end part of the rotating platform and does circular motion along with rotation of the rotating platform; the clamping mechanism is arranged on the test platform and is used for clamping a to-be-detected velvet bag; the friction mechanism is arranged on the base and located below the rotating platform and can be in mechanical friction with the velvet bag, and the velvet bag rotates along with the testing platform and is in mechanical friction with the friction mechanism; and the turnover mechanism is arranged between the test platform and the rotating platform to drive the test platform to turn over in a corona charging state and a mechanical friction state. The testing platform can be overturned through the overturning mechanism, so that the testing platform is respectively opposite to the corona charging mechanism and the friction mechanism in an upward state or a downward state, down feather bag static performance testing of two methods can be respectively carried out, one machine has two purposes, and the cost is greatly saved.

Description

Technical Field

[0001] The utility model belongs to the field of textile testing equipment, in particular to an adjustable down bag static tester. Background Art

[0002] Textiles often accumulate charge and generate static electricity after friction during use. This can cause discomfort to the user, such as causing the fabric to cling to the skin, attracting airborne dust, or generating static discharge. In industries related to precision technology, biotechnology, food, and hygiene, clothing is required to possess antistatic properties and be able to avoid airborne dust contamination to prevent static electricity from interfering with delicate electronic components. Currently, the electrostatic properties of textiles in my country are tested using the static voltage half-life method, surface charge density method, charge quantity method, resistivity method, triboelectric charging voltage method, fiber leakage resistance method, and dynamic static voltage method. However, there is no method for testing the antistatic properties of down fillings. To reduce the cost of antistatic testing for down jackets, this method was developed to determine the antistatic properties of down fillings and provide a reliable basis for evaluating the antistatic properties of down jacket fillings. To explore the reliability and feasibility of this method, down fillings with different components and contents were selected as samples and tested using the rotary friction method to analyze the antistatic properties of the down fillings.

[0003] It is very common for static electricity to be generated by the friction of the human body during daily wear and use of clothing. Currently, the main testing methods are all for textile fabrics, ignoring the rating and assessment of the anti-static performance of down fillings. In addition, the existing measuring equipment can only perform experiments using a single method. If multiple methods are required, it is necessary to purchase multiple types of equipment, which is relatively costly and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an adjustable down bag static tester.

[0005] The utility model adopts the following technical solutions:

[0006] An adjustable down bag static tester includes a base, a rotating mechanism, a test platform, a clamping mechanism, a corona charging mechanism, a flipping mechanism and a friction mechanism.

[0007] The rotating mechanism is arranged on the base and its rotating axis is perpendicular to the ground, and a rotating platform which can be driven to rotate is arranged on the base;

[0008] The test platform is set at the end of the rotating platform and moves in a circular motion as the rotating platform rotates;

[0009] The clamping mechanism is provided on the test platform for clamping the velvet bag to be tested;

[0010] The corona charging mechanism includes a corona discharger and a probe detector, which are respectively arranged on both sides of the rotating mechanism and located above the test platform, and can rotate with the test platform to face the velvet bag thereon;

[0011] The flipping mechanism is arranged between the test platform and the rotating platform, and includes a sleeve, a rotating shaft, a first fixing assembly and a second fixing assembly. The sleeve is arranged on the test platform and is located at the bottom of the surface opposite to the rotating platform. The rotating shaft is arranged at the end of the rotating platform and is opposite to the sleeve. The test platform can flip around the sleeve through the cooperation between the sleeve and the rotating shaft, so that the velvet bag flips from the upward corona charging state to the mechanical friction state with the velvet bag facing downward. The first fixing assembly fixes the test platform in the corona charging state, and the corona charging mechanism is opposite to the velvet bag in the corona charging state. The second fixing assembly fixes the test platform in the mechanical friction state.

[0012] The friction mechanism is arranged on the base and is located below the rotating platform, and can be in a mechanical friction state with the velvet bag. The velvet bag rotates with the test platform to perform mechanical friction with the friction mechanism.

[0013] Preferably, the clamping mechanism includes a lower clamping block, an upper clamping block and a fixing bolt. Two lower clamping blocks are provided and are arranged at intervals on the test platform. The upper clamping block corresponds to the lower clamping block one by one and is movably arranged on the lower clamping block. The two ends of the velvet bag are respectively placed between the upper clamping block and the lower clamping block. The fixing bolt passes through the upper clamping block and the lower clamping block in turn to fix the two and lock the velvet bag clamped between the two.

[0014] Preferably, the first fixing assembly includes a first sleeve, a second sleeve and a first pin, the first sleeve is arranged at the end of the rotating platform; the second sleeve is arranged on the test platform, located on the side close to the rotating platform and opposite to the first sleeve; the first pin passes through the first sleeve and the second sleeve in sequence to limit the rotation of the test platform and fix it in the corona charging state.

[0015] Preferably, a first limiting block is provided on the end of the first latch near the rotation center, and the size of the first limiting block is larger than the aperture of the first sleeve.

[0016] Preferably, the second fixing assembly includes a third sleeve, a fourth sleeve and a second pin, the third sleeve is arranged on both sides of the bottom of the rotating platform; the fourth sleeve is arranged on both sides of the bottom of the test platform, and the third sleeve and the fourth sleeve are on the same horizontal line when the test platform is in a mechanical friction state; the second pin passes through the third sleeve and the fourth sleeve in sequence to limit the rotation of the test platform and fix it in a mechanical friction state.

[0017] Preferably, a second limiting block is provided on the end portion of the second latch close to the rotation center, and the size of the second limiting block is larger than the aperture of the third sleeve.

[0018] Preferably, the friction mechanism includes a support column, a groove, a connecting rod, a spring, a friction platform and a friction cloth. There are several support columns, which are arranged on the base and around the rotating mechanism; the groove is formed downward from the top surface of the support column; the connecting rod can be raised and lowered in the groove; the spring is arranged between the bottom of the groove and the connecting rod, so that the connecting rod always has a tendency to move upward; the friction platform is arranged above the connecting rod and can be opposite to the velvet bag in the mechanical friction state and press against the velvet bag under the action of the spring; the friction cloth is arranged on the friction platform and can rub against the velvet bag.

[0019] Preferably, the friction platform is provided with a clearance groove for allowing the test platform to flip over.

[0020] Preferably, the rotating mechanism is a servo motor arranged in the base, and the output end of the servo motor extends upward and is connected to the center position of the rotating platform.

[0021] Preferably, the base is further provided with an operation display screen for presetting parameters and displaying detection results of the probe detector, and a controller connected to the operation display screen.

[0022] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects: the test platform can be flipped by the flipping mechanism so that it faces the corona charging mechanism and the friction mechanism in either the upward or downward state, respectively, and two methods of electrostatic performance testing of down bags can be performed respectively, which can well simulate the use of down in down jackets, and the dual purpose of one machine greatly saves costs;

[0023] The special structure of the first pin and the second pin enables the test platform to be fixed in the corona charging state and the mechanical friction state respectively. In addition, since the first pin and the second pin are respectively provided with a first limit block and a second limit block on the side close to the rotation center, when the device rotates, the first pin and the second pin have a tendency to move outward under the action of centrifugal force, but are kept fixed by the limiting action of the first limit block and the second limit block. Therefore, there is no need for a complicated fixing structure, and the fixing of the two states can be completed with a simple pin, which has a simple structure and is firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the corona charging method of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the mechanical friction method of the utility model;

[0026] Figure 3 This is the main view of the utility model;

[0027] Figure 4 for Figure 1A partial enlarged view of point A in the middle;

[0028] Figure 5 for Figure 2 A partial enlarged view of point B in the middle;

[0029] Figure 6 This is a structural cross-sectional view of the test platform and friction mechanism when the mechanical friction method is performed in the present invention;

[0030] In the figure: 1-base; 11-operation display screen; 2-rotating mechanism; 21-rotating platform; 22-servo motor; 3-test platform; 4-clamping mechanism; 41-lower clamping block; 42-upper clamping block; 43-fixing bolt; 5-corona charging mechanism; 51-corona discharger; 52-probe detector; 6-flipping mechanism; 61-sleeve; 62-rotating shaft; 63-first fixing assembly; 631-first sleeve; 632-second sleeve; 633-first latch; 634-first limit block; 64-second fixing assembly; 641-third sleeve; 642-fourth sleeve; 643-second latch; 644-second limit block; 7-friction mechanism; 71-support column; 72-groove; 73-connecting rod; 74-spring; 75-friction platform; 76-friction cloth; 77-gap groove. DETAILED DESCRIPTION

[0031] The present invention is further described below through specific implementation methods.

[0032] Reference Figures 1 to 6 As shown, an adjustable down bag static tester includes a base 1, a rotating mechanism 2, a test platform 3, a clamping mechanism 4, a corona charging mechanism 5, a flipping mechanism 6, and a friction mechanism 7.

[0033] The base 1 is provided with an operation display screen 11 for presetting parameters and displaying test results. The operation display screen 11 is connected to a PLC controller, which controls the operation of various components.

[0034] The rotating mechanism 2 is mounted on the base 1, with its rotating axis 62 perpendicular to the ground. A rotating platform 21 is mounted on the rotating mechanism 2, which is driven by the rotating mechanism. The rotating mechanism 2 is a servo motor 22 connected to a controller and mounted in the base 1. The output of the servo motor 22 extends upward and is connected to the center of the rotating platform 21.

[0035] The testing platform 3 is arranged at the end of the rotating platform 21 and performs circular motion as the rotating platform 21 rotates.

[0036] The clamping mechanism 4, installed on the test platform 3, is used to clamp the velvet bag to be tested. It includes a lower clamping block 41, an upper clamping block 42, and a fixing bolt 43. Two lower clamping blocks 41 are provided, spaced apart on the test platform 3. The upper clamping blocks 42 correspond to the lower clamping blocks 41 and are movably mounted on the lower clamping block 41, with the ends of the velvet bag positioned between the upper and lower clamping blocks 42, 41. The fixing bolt 43 passes through the upper and lower clamping blocks 42, 41, securing and locking the velvet bag between them. Specifically, the thickness of the velvet bag used for testing should be higher than the height of the fixing bolt 43 after installation to prevent the fixing screw from contacting the friction mechanism 7 during friction, which could damage the device.

[0037] The corona charging mechanism 5 includes a corona discharger 51 and a probe detector 52. The corona discharger 51 and the probe detector 52 are respectively arranged on both sides of the rotating mechanism 2 and located above the test platform 3. They can rotate with the test platform 3 and are respectively opposite to the velvet bag on it. When the test platform 3 rotates and the velvet bag rotates in a circular motion, the velvet bag contacts the corona discharger 51 multiple times during rotation. After being gradually charged, the corona discharger 51 stops discharging, while the rotating mechanism 2 continues to rotate. The probe sensor begins to measure the voltage on the velvet bag. When the applied voltage on the velvet bag decays to half of the peak voltage, it will stop rotating. The probe sensor feeds the signal back to the controller and records its time. This parameter is its electrostatic performance. The corona discharger 51 and the probe detector 52 are the structures used in the inductive electrostatic tester commonly used in the prior art. Those skilled in the art can directly and clearly understand them. They are not the focus of this application, and their structure and selection will not be further described here. Among them, the probe sensor can be an inductive electrostatic sensor.

[0038] The flipping mechanism 6 is arranged between the test platform 3 and the rotating platform 21, and includes a sleeve 61, a rotating shaft 62, a first fixing component 63 and a second fixing component 64. The sleeve 61 is arranged on the test platform 3 and is located at the bottom of the opposite surface of the test platform 3 and the rotating platform 21; the rotating shaft 62 is arranged at the end of the rotating platform 21 opposite to the sleeve 61. The test platform 3 can be flipped around it through the cooperation of the sleeve 61 and the rotating shaft 62, so that the velvet bag is flipped from the upward corona charging state to the downward mechanical friction state; the first fixing component 63 fixes the test platform 3 in the corona charging state, and the corona charging mechanism 5 is opposite to the velvet bag in the corona charging state; the second fixing component 64 fixes the test platform 3 in the mechanical friction state.

[0039] Specifically, the first fixing assembly 63 includes a first sleeve 631, a second sleeve 632, and a first latch 633. The first sleeve 631 is positioned at the end of the rotating platform 21. The second sleeve 632 is positioned on the test platform 3, near the rotating platform 21 and opposite the first sleeve 631. The first latch 633 passes through the first and second sleeves 631, respectively, to limit the rotation of the test platform 3 and secure it in the corona charging state. A first stopper 634 is provided on the end of the first latch 633 near the center of rotation. The size of the first stopper 634 is larger than the aperture of the first sleeve 631.

[0040] Furthermore, the second fixing assembly 64 includes a third sleeve 641, a fourth sleeve 642, and a second latch 643. The third sleeve 641 is positioned on either side of the bottom of the rotating platform 21; the fourth sleeve 642 is positioned on either side of the bottom of the test platform 3. When the test platform 3 is in the mechanical friction state, the third sleeve 641 and the fourth sleeve 642 are aligned horizontally. The second latch 643 sequentially passes through the third sleeve 641 and the fourth sleeve 642 to limit the rotation of the test platform 3 and secure it in the mechanical friction state. A second stopper 644 is provided on the end of the second latch 643 near the center of rotation. The size of the second stopper 644 is larger than the aperture of the third sleeve 641.

[0041] The special structure of the first pin 633 and the second pin 643 realizes the fixation of the test platform 3 in the corona charging state and the mechanical friction state respectively. In addition, since the first pin 633 and the second pin 643 are respectively provided with a first limit block 634 and a second limit block 644 on the side close to the rotation center, when the device rotates, the first pin 633 and the second pin 643 have a tendency to move outward under the action of centrifugal force, but are kept fixed by the limiting action of the first limit block 634 and the second limit block 644. Therefore, there is no need for a complicated fixing structure, and the fixation of the two states can be completed with a simple pin, which has a simple structure and is firm.

[0042] The friction mechanism 7 includes a support column 71, a groove 72, a connecting rod 73, a spring 74, a friction platform 75, and a friction cloth 76. Several support columns 71 are provided, mounted on the base 1 and arranged around the rotating mechanism 2. The groove 72 is formed downward from the top surface of the support column 71. The connecting rod 73 is arranged in a liftable manner within the groove 72. The spring 74 is disposed between the bottom of the groove 72 and the connecting rod 73, ensuring that the connecting rod 73 always has an upward movement tendency. The friction platform 75 is disposed above the connecting rod 73 and can face the velvet bag in the mechanical friction state and, under the action of the spring 74, press against the velvet bag. The friction cloth 76 is disposed on the friction platform 75 and can rub against the velvet bag. Specifically, the friction platform 75 is provided with a clearance groove 77 for the test platform 3 to flip. When switching between the corona charging state and the mechanical friction state is required, the test platform 3 can be smoothly flipped by simply rotating it to the clearance groove 77, thus preventing the test platform 3 from contacting the friction platform 75 during flipping and causing damage to the device.

[0043] This application includes two test methods as follows:

[0044] 1. Corona charging method

[0045] (1) Rotate the rotating platform 21 to the position of the yield groove 77 of the friction platform 75, flip the test platform 3 to the corona charging state, and insert the first pin 633 to complete the fixation;

[0046] (2) Use an electrostatic eliminator to eliminate static electricity from the velvet bag;

[0047] (3) Place the prepared velvet bag with the test surface facing upward and fix it on the test platform 3 through the clamping mechanism 4;

[0048] (4) Preset parameters such as voltage and speed on the operation display screen 11 and start the device;

[0049] (5) When the test platform 3 rotates, the corona discharger 51 contacts the velvet bag multiple times and gradually applies a preset voltage for 30 seconds;

[0050] (6) After 30 seconds, the corona discharger 51 stops applying voltage, and the rotating platform 21 continues to rotate until the probe detector 52 detects that the applied voltage on the velvet bag has decayed to half of the peak voltage. The controller stops the device according to the signal feedback from the probe detector 52 and records the time.

[0051] (7) After repeating the above steps for one or more identical velvet bags multiple times, the average value of the obtained time is the electrostatic performance of the sample.

[0052] 2. Rotating Machinery Friction Method

[0053] (1) Rotate the rotating platform 21 to the position of the yield groove 77 of the friction platform 75, flip the test platform 3 to adjust it to the mechanical friction state, and insert the second latch 643 to complete the fixation;

[0054] (2) Use an electrostatic eliminator to eliminate static electricity from the velvet bag;

[0055] (3) Place the prepared velvet bag with the test surface facing downward and fix it on the test platform 3 through the clamping mechanism 4, and make sure that the lowest point of the velvet bag is lower than the friction platform 75 at this time to ensure that friction can be performed during subsequent rotation;

[0056] (4) Start the device after presetting the speed and time on the operation display screen 11;

[0057] (5) After the rotation reaches the preset time, the rotation stops and the frictional electrification voltage on the velvet bag is directly measured;

[0058] (6) After repeating the above steps multiple times for one or more identical fleece bags, the average triboelectric voltage calculated is the friction performance of the sample.

[0059] The present application can flip the test platform 3 through the flipping mechanism 6, so that it is opposite to the corona charging mechanism 5 and the friction mechanism 7 in the upward or downward state respectively, and can perform two methods of down bag electrostatic performance testing respectively, which can well simulate the use of down in down jackets. It is a one-machine dual-purpose device, greatly saves costs, and has high practicality.

[0060] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of implementation of the present invention. In other words, equivalent changes and modifications made according to the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the present patent.

Claims

1. An adjustable down bag static tester, characterized by: It includes a base, a rotating mechanism, a testing platform, a clamping mechanism, a corona charging mechanism, a flipping mechanism and a friction mechanism. The rotating mechanism is arranged on the base and its rotating axis is perpendicular to the ground, and a rotating platform which can be driven to rotate is arranged on the base; The test platform is set at the end of the rotating platform and moves in a circular motion as the rotating platform rotates; The clamping mechanism is provided on the test platform for clamping the velvet bag to be tested; The corona charging mechanism includes a corona discharger and a probe detector, which are respectively arranged on both sides of the rotating mechanism and located above the test platform, and can rotate with the test platform to face the velvet bag thereon; The flipping mechanism is arranged between the test platform and the rotating platform, and includes a sleeve, a rotating shaft, a first fixing assembly and a second fixing assembly. The sleeve is arranged on the test platform and is located at the bottom of the surface opposite to the rotating platform. The rotating shaft is arranged at the end of the rotating platform and is opposite to the sleeve. The test platform can flip around the sleeve through the cooperation between the sleeve and the rotating shaft, so that the velvet bag flips from the upward corona charging state to the mechanical friction state with the velvet bag facing downward. The first fixing assembly fixes the test platform in the corona charging state, and the corona charging mechanism is opposite to the velvet bag in the corona charging state. The second fixing assembly fixes the test platform in the mechanical friction state. The friction mechanism is arranged on the base and is located below the rotating platform, and can be in a mechanical friction state with the velvet bag. The velvet bag rotates with the test platform to perform mechanical friction with the friction mechanism.

2. The adjustable down bag static tester according to claim 1, characterized in that: The clamping mechanism includes a lower clamping block, an upper clamping block and a fixing bolt. Two lower clamping blocks are provided and are arranged at intervals on the test platform. The upper clamping block corresponds to the lower clamping block one by one and is movably arranged on the lower clamping block. The two ends of the velvet bag are respectively placed between the upper clamping block and the lower clamping block. The fixing bolt passes through the upper clamping block and the lower clamping block in turn to fix the two and lock the velvet bag clamped therebetween.

3. The adjustable down bag static tester according to claim 1, characterized in that: The first fixing assembly includes a first sleeve, a second sleeve and a first pin, the first sleeve is arranged at the end of the rotating platform; the second sleeve is arranged on the test platform, located on the side close to the rotating platform and opposite to the first sleeve; the first pin passes through the first sleeve and the second sleeve in sequence to limit the rotation of the test platform and fix it in a corona charging state.

4. The adjustable down bag static tester according to claim 3, characterized in that: A first limiting block is provided on the end portion of the first latch near the rotation center, and the size of the first limiting block is larger than the aperture of the first sleeve.

5. The adjustable down bag static tester according to claim 1, characterized in that: The second fixing assembly includes a third sleeve, a fourth sleeve and a second pin. The third sleeve is arranged on both sides of the bottom of the rotating platform; the fourth sleeve is arranged on both sides of the bottom of the test platform. When the test platform is in a mechanical friction state, the third sleeve and the fourth sleeve are on the same horizontal line; the second pin passes through the third sleeve and the fourth sleeve in sequence to limit the rotation of the test platform and fix it in the mechanical friction state.

6. The adjustable down bag static tester according to claim 5, characterized in that: A second limiting block is provided on the end portion of the second latch near the rotation center, and the size of the second limiting block is larger than the aperture of the third sleeve.

7. The adjustable down bag static tester according to claim 1, characterized in that: The friction mechanism includes a support column, a groove, a connecting rod, a spring, a friction platform and a friction cloth. There are several support columns, which are arranged on the base and around the rotating mechanism; the groove is formed downward from the top surface of the support column; the connecting rod can be raised and lowered in the groove; the spring is arranged between the bottom of the groove and the connecting rod, so that the connecting rod always has a tendency to move upward; the friction platform is arranged above the connecting rod and can be opposite to the velvet bag in the mechanical friction state and press against the velvet bag under the action of the spring; the friction cloth is arranged on the friction platform and can rub against the velvet bag.

8. The adjustable down bag static tester according to claim 7, characterized in that: The friction platform is provided with a clearance groove for allowing the test platform to flip over.

9. The adjustable down bag static tester according to claim 1, characterized in that: The rotating mechanism is a servo motor arranged in the base, and the output end of the servo motor extends upward and is connected to the center position of the rotating platform.

10. The adjustable down bag static tester according to claim 1, characterized in that: The base is also provided with an operation display screen for presetting parameters and displaying detection results of the probe detector and a controller connected to the operation display screen.

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