Special rapid automatic moisture regain tester for cotton sample
The rapid and automatic testing of the moisture regain of cotton samples is achieved by using an ultra-high frequency resonant sensor and an automated control system. This solves the problems of low testing efficiency and easy equipment damage in existing technologies, improves detection efficiency and accuracy, and ensures the accuracy and reliability of cotton test data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-10
AI Technical Summary
Existing cotton notary testing laboratories have low efficiency, are labor-intensive, and have equipment that is prone to damage, which cannot meet the requirements of automated logistics and rapid, efficient, and online testing in laboratories.
Employing an ultra-high frequency resonant sensor and an automated control system, the moisture regain of cotton samples can be tested quickly and automatically. The moisture content can be detected and the moisture regain calculated simply by touching the cotton sample, eliminating the need for manual pressure application.
It improves testing efficiency and accuracy, extends equipment lifespan, ensures the accuracy and reliability of test data, and meets the random sampling requirements of cotton inspection procedures.
Smart Images

Figure CN224109476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cotton detection technical field especially is related to a kind of special moisture regain quick automatic tester of cotton sample. BACKGROUND
[0002] Cotton official inspection laboratory each test link needs to carry out moisture regain detection to cotton sample in bagging and sampling, pretreatment, three links of balance, according to the requirement of "cotton quality official inspection laboratory test procedure", moisture regain test proportion of each link is 10%.Currently, the original cotton moisture meter is used for testing in public inspection laboratory, and the test principle is applicable to GB / T6102.2-2012 "cotton moisture regain test method resistance method". When testing, cotton needs to be pressed to make it compact, and then the moisture regain of the compacted cotton is measured by resistance method through sensor. The test efficiency is low. Before applying pressure, some time is spent on manual pressure adjustment, which reduces the test efficiency and is laborious. Moreover, the equipment is easily damaged due to long-term pressure application, which seriously affects the officiousness and timeliness of the official inspection results of cotton. In addition, the moisture regain tester used in domestic cotton public inspection laboratory is manually operated, which cannot meet the requirements of automatic logistics, rapid and efficient and online detection in laboratory.
[0003] The above problems are specifically illustrated by taking China cotton official inspection Bole laboratory as an example. The total cotton yield in Bole area is about 300,000 tons. China cotton official inspection Bole laboratory needs to complete more than 7,100 batches of official inspection per year, 186 samples per batch, and the standard weight of each cotton sample is 125 grams, which is loaded into 19 sample boxes. The cotton samples loaded into the sample boxes are in a fluffy state without pressure constraint. The normal sampling test frequency of moisture regain is: 7,100 batches * 19 boxes / batch * 1 time / box * 3 times = 404,700 times. If the moisture regain test is unqualified and needs to be repeated for detection, the above test frequency will increase.
[0004] Currently, XJ130k moisture regain rapid tester is used for testing in Bole inspection laboratory. The weight of the moisture regain tester is 1.5 Kg, and the manual pressure applied is 49 N±5 N. During the test process, the tester needs to hold the instrument handle and apply pressure until the pressure indicator light is on, and then maintain the pressure for about 3 seconds to display the test result. The manual pressure value is not easy to control, and the test process needs to be adjusted constantly, which reduces the test efficiency. The equipment is easily damaged due to long-term pressure application, has high failure rate and low reliability.
[0005] From the situation of Bole laboratory, the moisture regain test frequency is as high as 40 million times per test season, the instrument weight is 1.5 Kg, and the applied pressure is 49 N±5 N. It is not difficult to see that this is a time-consuming, laborious and inefficient detection work. UTILITY MODEL CONTENT
[0006] The utility model aims at providing a kind of cotton sample special moisture regain quick automatic tester, cotton sample special moisture regain quick automatic tester can realize the automatic detection of cotton sample moisture regain, and by using ultra-high frequency resonant sensor, just sensor light touch cotton sample, the moisture regain of cotton sample can be tested quickly, without manually operating tester to press pressure on cotton, avoid the adjustment of pressure, so as to improve test efficiency, reduce failure rate, improve reliability.
[0007] In order to achieve the above object, the utility model provides a kind of cotton sample special moisture regain quick automatic tester, specific implementation scheme is as follows:
[0008] A kind of cotton sample special moisture regain quick automatic tester, comprising:
[0009] Tray stock car is used to carry cotton sample box;
[0010] Bottom frame, the limiting cavity allowing tray stock car to enter is formed on the bottom frame;
[0011] Gantry, is installed on the bottom frame;
[0012] Ultra-high frequency resonant sensor is used to detect the moisture content of cotton sample;
[0013] Code reader is used to read the rfid tag at the bottom of cotton sample box;
[0014] Driving mechanism, is installed on the gantry, and is connected with ultra-high frequency resonant sensor and the code reader, for driving the ultra-high frequency resonant sensor and the code reader close to cotton sample box;
[0015] Control mechanism, electrically connected the driving mechanism, the ultra-high frequency resonant sensor and the code reader, for controlling the work of the driving mechanism, according to the moisture content information measured by the received ultra-high frequency resonant sensor Calculating the moisture regain of cotton sample.
[0016] In an embodiment, the bottom frame includes two oppositely arranged first crossbars and a second crossbar connected to one end of the two first crossbars, and the first crossbars and the second crossbar enclose the limiting cavity.
[0017] In an embodiment, the limiting cavity is provided with a track frame, the track frame includes two tracks and a connecting plate;Two tracks are respectively installed on two first crossbars, the connecting plate is located at the rear end of the limiting cavity, and connects two tracks close to one end of the second crossbar.
[0018] In an embodiment, the track frame further comprises two guide plates located at the opening end of the limiting cavity, and the two guide plates are arranged in a spreader shape.
[0019] In an embodiment, the tray frame trolley comprises a tray plate and a trolley roller arranged below the tray plate.
[0020] In an embodiment, four sides of the tray plate are provided with limiting guide plates protruding from the top of the tray plate.
[0021] In an embodiment, an operation display screen is further included, and the operation display screen is electrically connected to the control mechanism.
[0022] In an embodiment, the gantry comprises two upright columns and a cross beam, one end of each of the two upright columns is fixed to the two first cross bars respectively, and the other end is connected to two ends of the cross beam; and the driving mechanism is mounted on the two upright columns.
[0023] In an embodiment, the driving mechanism comprises a Z-axis driving assembly mounted on the gantry, an X-axis driving assembly connected to the Z-axis driving assembly, and a Y-axis driving assembly connected to the X-axis driving assembly.
[0024] In an embodiment, a frame roller is further included, and the frame roller is arranged at the bottom of the bottom frame.
[0025] Based on the above technical solution, the utility model has the following beneficial effects relative to the prior art:
[0026] The utility model discloses a control mechanism, driving mechanism, ultrahigh frequency resonance sensor are set up, when testing, the control mechanism can control driving mechanism and drive ultrahigh frequency resonance sensor to move to the position of the cotton sample to be measured, and only touch cotton, utilize the ultrahigh frequency resonance sensor to detect the moisture content of cotton, and then the control mechanism converts the moisture content of cotton into the moisture regain, and the moisture regain of the cotton sample in the cotton sample box to be measured can be obtained, the whole process is realized through automation, and manual pressure regulation is no longer needed to depress cotton, time and energy are saved, test efficiency and test precision are improved, and because manual pressure is not needed, the damage of the instrument caused by pressure is also avoided, and the service life of the instrument is improved. The implementation of the random sampling inspection mode is ensured during the testing process, the cotton inspection regulation is well implemented, the interference of human factors is eliminated, and the accuracy and reliability of the cotton detection data are further improved. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 A three-dimensional structure schematic view of a cotton sample special moisture regain rapid automatic tester without a tray frame trolley and a track frame is shown in the utility model embodiment.
[0028] Figure 2The utility model discloses a tray material car's three-dimensional structure schematic diagram of rack shown in the embodiment of the utility model.
[0029] Figure 3 The utility model discloses a bottom frame's three-dimensional structure schematic diagram of rack shown in the embodiment of the utility model.
[0030] Mark explanation:
[0031] 10, bottom frame, 11, first cross bar, 12, second cross bar, 13, limiting cavity, 14, track frame, 141, track, 142, first plate, 143, second plate, 144, frame guide plate, 145, connecting plate, 15, buffer, 20, gantry, 21, stand, 22, crossbeam, 30, drive mechanism 30, 31, Z axle drive assembly, 32, X axle drive assembly, 33, Y axle drive assembly, 40, super high frequency resonance sensor, 50, code reader, 60, control mechanism, 70, operation display screen, 80, frame roller, 90, tray material car, 91, tray, 92, car roller, 93, limiting guide plate, 94, manual brake handle. DETAILED DESCRIPTION
[0032] In order to facilitate understanding the utility model, below will refer to the drawings of the specification to the embodiment of the utility model more detailed description.
[0033] Unless specifically stated or otherwise defined, the "first, second" used in this paper only for the name of the distinction, not the specific quantity or order.
[0034] Unless specifically stated or otherwise defined, the term "and / or" used in this paper includes one or more related listed items of any and all combinations.
[0035] It needs to be explained that, in this paper, "fixed in", "connected to", can be directly fixed or connected to an element, can also be indirectly fixed or connected to an element.
[0036] Please refer to Figures 1 to 3The utility model discloses an embodiment of a kind of cotton sample special moisture regain fast automatic tester, including bottom frame 10, portal frame 20, high super high frequency resonance sensor 40, code reader 50, drive mechanism 30 and control mechanism 60;Tray rack truck 90 is used to carry cotton sample box;Limiting cavity 13 that is matched with tray rack truck 90 is formed on bottom frame 10, limiting cavity 13 is matched with tray rack truck 90, and the side of limiting cavity 13 is formed with the opening that allows tray rack truck 90 to enter;Portal frame 20 is installed on bottom frame 10, and drive mechanism 30 is installed on portal frame 20;High super high frequency resonance sensor 40 is used to test the moisture regain of cotton sample;Code reader 50 is used to read the rfid tag of the bottom of cotton sample box;Drive mechanism 30 is installed on portal frame 20, and is connected with high super high frequency resonance sensor 40 and code reader 50, for driving high super high frequency resonance sensor 40 and code reader 50 close to cotton sample box;Control mechanism 60 is electrically connected drive mechanism 30, high super high frequency resonance sensor 40 and code reader 50, for controlling the work of drive mechanism 30, and receiving the information detected by high super high frequency resonance sensor 40 and code reader 50, according to the information sent by high super high frequency resonance sensor 40 received, the moisture regain of the cotton sample placed in cotton sample box is calculated.
[0037] The structure of the utility model can realize light touch measurement method, and the test method is derived from a kind of technology for measuring the moisture content of article using high super high frequency resonance principle.The measuring instrument using the technology has mature and extensive use experience in metallurgy, mine and other fields, but it is first innovative attempt in cotton detection field.The test method includes the following steps:
[0038] S10, tray rack truck 90 is pushed into the track 11 in the limiting cavity 13 of bottom frame 10.
[0039] Specifically, after tray rack truck 90 enters the limiting cavity 13 of bottom frame 10, the special structure of track frame 16 in bottom frame 10 can limit tray rack truck 90, so that the planar positioning of cotton sample box in the tester is determined, facilitating the subsequent tester to accurately determine the cotton sample box placed on tray rack truck 90.
[0040] S20, the first cotton sample box is placed in tray rack truck 90, the cotton sample box has 10 storage compartments for placing cotton samples, each storage compartment corresponds to a natural order test number between 1-10, and an rfid tag is arranged below each storage compartment.
[0041] S30, control mechanism 60 randomly generates a test number between 1-10, then controls drive mechanism 30 to drive high super high frequency resonance sensor 40 and code reader 50 to move to the position of the storage compartment corresponding to the test number until light contact with the cotton sample in the storage compartment.
[0042] Specifically, before the test, the control mechanism 60 sends a random test number in the range of 1-10, and the ultra-high frequency resonance sensor 40 is quickly moved to the corresponding storage compartment position by the driving mechanism 30. The driving mechanism 30 drives the ultra-high frequency resonance sensor 40 to touch the cotton sample, and also drives the code reader 50 to approach the storage compartment. The moisture regain test of the cotton sample and the information reading of the rfid tag at the bottom of the storage compartment can be completed instantly. When the moisture regain test of other cotton sample boxes is performed subsequently, since the test number sent by the control mechanism 60 before each test is random, random sampling detection of the cotton sample in each cotton sample box can be completed.
[0043] S40, the code reader 50 reads the rfid code at the bottom of the storage compartment and sends the read information to the control mechanism 60. At the same time, the control mechanism 60 sends a detection instruction to the ultra-high frequency resonance sensor 40. The ultra-high frequency resonance sensor 40 forms an ultra-high frequency resonance zone to detect the moisture content of the cotton, and sends the detected moisture content information to the control mechanism 60. The control mechanism 60 converts the obtained water content information into moisture regain.
[0044] Specifically, the code reader 50 reads the rfid code at the bottom of the small compartment corresponding to the random test number to obtain the rfid code information in the small compartment. The internal measurement and control program of the control mechanism 60 will associate the test number, rfid code, and moisture regain value of the above cotton sample box. Before the moisture regain detection of the cotton sample in each cotton sample box is performed, the association of the test number, rfid code, and 32-bit identity barcode information of the cotton will be completed first.
[0045] Among them, for the conversion between water content and moisture regain, please refer to the national standard document GBT9995-1997 Textile Materials Moisture Content and Moisture Regain Determination Oven Drying Method Standard, which specifically explains how to convert the water content into the moisture regain count method.
[0046] S50, after completing the moisture regain detection of the first cotton sample box, subsequent cotton sample boxes are stacked one by one, and the operations of steps S10-S50 are performed one by one.
[0047] In step S50, after each cotton sample box is sampled, the control mechanism 60 drives the ultra-high frequency resonance sensor 40 to first lift the height of two cotton sample boxes, and waits for the next cotton sample box to be placed. In this way, the vertical movement distance of the ultra-high frequency resonance sensor 40 can be shortened, the test time can be shortened, and the staff can be prevented from being injured by the ultra-high frequency resonance sensor 40 when placing the cotton sample box.
[0048] Each time the ultra-high frequency resonant sensor 40 starts from the relative coordinate origin, instead of starting from the position after the previous test, effectively preventing the transmission and accumulation of position errors.
[0049] Each pallet rack trolley 90 only stacks one stack of cotton sample boxes. When stacking each cotton sample box on the pallet rack trolley 90, the operator manually presses the start detection button on the operation display screen 70. The control mechanism 60 then controls the drive mechanism 30 to activate the ultra-high frequency resonant sensor 40 and the code reader 50. Furthermore, each time the start detection button is pressed manually, the control mechanism 60 automatically counts the number of times and transmits the count to the operation display screen 70.
[0050] Furthermore, in step S50, the moisture regain test of the cotton sample in the previous cotton sample box is completed within the time it takes to take down the next cotton sample box and place it onto the pallet rack trolley 90. In this way, the tester can quickly complete the moisture regain test of the cotton sample without adding extra testing time, which can greatly improve the efficiency of the testing work.
[0051] S60. After stacking and inspection are completed, push away the pallet rack trolley 90.
[0052] In one embodiment, such as Figure 1 As shown, the bottom frame 10 includes two opposing first crossbars 11 and a second crossbar 12 connecting one end of the two first crossbars 11. The first crossbars 11 and the second crossbar 12 form a limiting cavity 13.
[0053] In one embodiment, the gantry 20 includes two columns 21 and a crossbeam 22. One end of the two columns 21 is fixed to two first crossbars 11, and the other end is connected to both ends of the crossbeam 22. The drive mechanism 30 is installed on the two columns 21.
[0054] In one embodiment, the drive mechanism 30 includes a Z-axis drive assembly 31 mounted on the column 21, an X-axis drive assembly 32 connected to the Z-axis drive assembly 31, and a Y-axis drive assembly 33 connected to the X-axis drive assembly 32; the ultra-high frequency resonant sensor 40 and the barcode reader 50 are both mounted on the Y-axis drive assembly 33. The Z-axis drive assembly 31 is used to drive the ultra-high frequency resonant sensor 40 and the barcode reader 50 to move along the Z-axis direction, and the X-axis drive assembly 32 and the Y-axis drive assembly 33 are used to drive the ultra-high frequency resonant sensor 40 and the barcode reader 50 to move along the X-axis and Y-axis, respectively. The Z-axis drive assembly 31, the X-axis drive assembly 32, and the Y-axis drive assembly 33 can be a drive mechanism consisting of a motor and a lead screw, a cylinder and a slider, or a servo motor and a synchronous belt; specific details are not provided here.
[0055] In an embodiment, the cotton sample special moisture regain rapid automatic tester further comprises a frame roller 80 arranged at the bottom of the bottom frame 10. This arrangement facilitates the movement of the entire cotton sample special moisture regain rapid automatic tester. When not in use, the entire tester can be pushed back to the empty space between the sample dividing tables, without occupying additional space.
[0056] In an embodiment, as shown in Figure 1 the two first cross bars 11 are straight and arranged in parallel. As shown in Figure 3 The track frame 14 is arranged in the limiting cavity 13 and is used to further position the tray storage vehicle 90. The track frame 14 comprises two parallel tracks 141, two shelf guide plates 144 arranged at the opening end of the limiting cavity 13, and a connecting plate 145 arranged at the rear end of the limiting cavity 13 and connecting the two tracks 141. The two tracks 141 are respectively mounted on the two first cross bars 11. The two shelf guide plates 112 are respectively arranged at the ends of the two tracks 141 away from the first cross bars 11 and are arranged in a spreader shape, facilitating the entry and positioning of the tray storage vehicle 90.
[0057] Specifically, the cross section of the track 141 is L-shaped, comprising a first plate 142 connected to the first cross bar 11 and a second plate 143 connected to the first plate 142 perpendicularly. The second plate 143 is arranged adjacent to the bottom surface of the first cross bar 11. The first plate 142 and the second plate 143 form a guide channel therebetween. When the tray storage vehicle enters the limiting cavity 13, the vehicle rollers 92 on both sides of the tray storage vehicle 90 enter the guide channels on the two tracks 141 of the track frame 14. Under the guidance of the guide channels, the tray storage vehicle 90 can move stably in a straight line and is not prone to shaking, thereby ensuring the stability of the cotton sample box placed on the tray storage vehicle 90. The first plate 142 and the first cross bar 11 are connected by a positioning and adjusting screw.
[0058] In other possible embodiments, a buffer 15 can be arranged on the track frame 16 to buffer the impact between the tray storage vehicle 90 and the track frame 16, so as to protect the tray storage vehicle 90. The buffer 15 is made of an elastic material and can be arranged on the side of the connecting plate 145 facing the limiting cavity 13.
[0059] In an embodiment, the cotton sample special moisture regain rapid automatic tester further comprises an operation display screen 70, which is electrically connected to the control mechanism 60, for sending operation instructions to the control mechanism 60, displaying the detection results, and receiving the detection result information sent by the control mechanism 60, so as to facilitate the staff to operate the entire tester and read the detection results. The operation display screen 70 is provided with a touch operation button, and the operation display screen 70 sends operation instructions to the control mechanism 60 by operating the touch operation button; in step S40, after the control mechanism 60 receives the information obtained by the high-super-high-frequency resonant sensor 40 and the code reader 50, the control mechanism 60 sends the processed information to the operation display screen 70 for display. In other possible embodiments, the control mechanism 60 can also send the processed information to the background server wirelessly, and can also send operation instructions to the control mechanism 60 wirelessly through the background server.
[0060] In an embodiment, the tray storage vehicle 90 comprises a tray plate 91 for containing the cotton detection sample and a vehicle roller 92 arranged below the tray plate 91.
[0061] Further, the four sides of the tray plate 91 are provided with limiting guide plates 93 protruding from the top of the tray plate 91, for limiting the cotton sample box on the tray plate 91, preventing the stacked cotton sample box from sliding out of the tray plate 91. In other possible embodiments, in order to save labor to push the tray storage vehicle 90 into the limiting cavity 13 of the bottom frame 10, guide wheels can be arranged on both sides of the tray plate 91, facilitating the tray storage vehicle 90 to enter the limiting cavity 13.
[0062] Further, the tray storage vehicle 90 further comprises a manual brake handle 94 arranged on the side of the tray plate 91, which is used to brake the tray storage vehicle after the tray storage vehicle 90 is completely entered into the limiting cavity, so that the tray storage vehicle 90 can be stable on the ground during the cotton sample detection and will not move.
[0063] In conclusion, the utility model discloses a control mechanism 60, drive mechanism 30, ultrahigh frequency resonance sensor 40 are set up, when testing, control mechanism 60 can control drive mechanism 30 drive ultrahigh frequency resonance sensor 40 motion to the position of the cotton sample to be measured, and only touch the cotton, utilize ultrahigh frequency resonance sensor 40 to detect the moisture content of cotton, then through control mechanism 60, the moisture content of cotton is converted into the moisture regain, and the moisture regain of the cotton sample in the cotton sample box to be measured can be obtained, the whole process is realized through automation, and it is not necessary to manually regulate pressure to depress the cotton, time and energy are saved, and the test efficiency and test precision are improved, and because manual pressure is not needed, the instrument damage caused by pressure is avoided, and the service life of the instrument is improved. The test process guarantees the implementation of random sampling inspection mode, well executes cotton inspection regulation, prevents human factor interference, and further improves the accuracy and reliability of cotton detection data.
[0064] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above-mentioned embodiments, for example, different types can be designed according to different application places, such as the frame type for the outlet of the pretreatment channel, the table type installed with the sensory two-in-one table top of the sample dividing table, the AGV carrying type matched with the back clamp type AGV in the balancing room and the like. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description, and do not constitute any limitation on the utility model.
Claims
1. A cotton sample specific moisture regain rapid automatic tester characterized in that, The utility model relates to a tray rack truck for carrying cotton sample box, bottom frame which is formed with limiting cavity allowing tray rack truck to enter, gantry installed on the bottom frame, ultra-high frequency resonance sensor for detecting moisture content of cotton sample, code reader for reading rfid tag at the bottom of cotton sample box, driving mechanism installed on the gantry and connected with ultra-high frequency resonance sensor and the code reader for driving the ultra-high frequency resonance sensor and the code reader to be close to cotton sample box, control mechanism electrically connected with the driving mechanism, the ultra-high frequency resonance sensor and the code reader for controlling the work of driving mechanism, and the moisture regain of cotton sample is calculated according to the moisture content information measured by the received ultra-high frequency resonance sensor. The bottom frame includes two oppositely arranged first horizontal rods and a second horizontal rod connected to one end of the two first horizontal rods, and the first horizontal rods and the second horizontal rod enclose the limiting cavity. The limiting cavity is provided with a track frame, which includes two tracks and a connecting plate; the two tracks are respectively installed on the two first horizontal rods, and the connecting plate is located at the rear end of the limiting cavity and connects the two tracks close to the end of the second horizontal rod. The track frame further includes two guide plates located at the opening end of the limiting cavity, and the two guide plates are arranged in an eight-character shape. The tray rack truck includes a tray and a car roller wheel arranged below the tray. The four sides of the tray are provided with limiting guide plates protruding from the top of the tray. It also includes an operation display screen electrically connected to the control mechanism. The gantry includes two vertical columns and a crossbeam, one end of the two vertical columns is respectively fixed on the two first horizontal rods, and the other end connects the two ends of the crossbeam; the driving mechanism is installed on the two vertical columns.
2. The cotton sample dedicated rapid moisture content automatic tester according to claim 1, characterized in that, The driving mechanism includes a Z-axis driving assembly installed on the gantry, an X-axis driving assembly connected to the Z-axis driving assembly, and a Y-axis driving assembly connected to the X-axis driving assembly.
3. The cotton sample dedicated rapid moisture content automatic tester according to claim 2, characterized in that, It also includes a rack roller wheel arranged at the bottom of the bottom frame.
4. The cotton sample dedicated rapid moisture content automatic tester according to claim 3, characterized in that, 5. The quick automatic testing instrument for moisture regain of cotton sample according to claim 1, characterized in that, 6. The quick automatic testing instrument of moisture regain of cotton sample according to claim 5, characterized in that, 7. The quick automatic testing instrument of moisture regain of cotton sample according to claim 1, characterized in that, 8. The quick automatic testing instrument of moisture regain of cotton sample according to claim 2, characterized in that, 9. The quick automatic testing instrument of moisture regain of cotton sample according to claim 1, characterized in that, 10. The quick automatic testing instrument for moisture regain of cotton sample according to claim 1, characterized in that,