A fiber detection and liquid adding device

Abstract

The present invention discloses a fiber detection liquid-adding device, comprising a frame, a mobile device, and a liquid-adding device; the liquid-adding device comprises a liquid-adding nozzle, a buffer tank, a main liquid storage tank, a primary liquid pump, a secondary liquid pump, and a pressure compensation capsule; the main liquid storage tank is connected to the buffer tank via a liquid-drawing tube, and the primary liquid pump is used to pump liquid into the buffer tank; the pressure compensation capsule is connected to different positions of the liquid-drawing tube to compensate for changes in internal liquid pressure when the liquid-drawing tube bends and moves; the buffer tank, the secondary liquid pump, and the liquid-adding nozzle are fixedly mounted on the mobile device, and the secondary liquid pump is used to pump liquid in the buffer tank to the liquid-adding nozzle; the mobile device is used to drive the liquid-adding nozzle, the buffer tank, and the secondary liquid pump to move together, so that the liquid-adding nozzle adds liquid to the detection bottles one by one. The present invention can greatly improve the liquid-adding accuracy of the fiber detection liquid-adding device.

Description

Technical Field

[0001] The present application relates to the technical field of fiber detection, and in particular to a fiber detection liquid adding device. Background Art

[0002] The pH value is an indicator of textile safety, and the standard requires a pH range of 4.0 to 9.0. High or low pH values ​​not only affect the performance of the textile itself but may also pose certain risks to human health during use. The national mandatory standard, "National Basic Safety Technical Specifications for Textile Products," stipulates pH requirements of 4.0 to 7.5 for Category A (infant and toddler products), 4.0 to 8.5 for Category B (direct skin contact), and 4.0 to 9.0 for Category C (indirect skin contact).

[0003] When testing the pH value of a fiber, a fiber extract needs to be prepared. The fiber extract is prepared by adding 100 mL of distilled water (pH value 5.0-7.5) to a small piece of fiber sample of a certain weight (2±0.05 g), and then shaking to allow the substances in the fiber to fully dissolve in the solution. In the prior art, when making a fiber extract, the accuracy of the distilled water added has a significant impact on the pH value of the obtained fiber extract. However, the liquid addition accuracy of the existing fiber detection liquid addition device is low, which restricts the accuracy of the fiber pH value detection. The applicant found that in the prior art, the liquid addition nozzle is connected to the liquid storage tank through a pipeline, and the liquid is pumped to the liquid addition nozzle by a liquid pump. The liquid addition nozzle is driven by a moving device to the top of different test bottles. When the liquid addition nozzle moves, the pipeline also bends and moves accordingly, causing the pressure in the pipeline to change, thereby affecting the liquid addition accuracy of the liquid addition nozzle. Therefore, how to improve the liquid addition accuracy of the liquid addition device has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0004] In view of the above problems, the present application provides a fiber detection liquid adding device, which is used to improve the liquid adding accuracy of the fiber detection liquid adding device, thereby improving the accuracy of fiber pH value detection.

[0005] To achieve the above-mentioned purpose, the inventor provides a fiber detection liquid adding device for adding liquid to a fiber detection sample, the fiber detection liquid adding device comprising: a frame, a moving device and a liquid adding device;

[0006] The test bottle is placed on the rack; the liquid adding device includes a liquid adding nozzle, a buffer tank, a main liquid storage tank, a primary liquid pump, a secondary liquid pump and a pressure compensation bag;

[0007] The main liquid storage tank is connected to the buffer tank via a liquid extraction pipe. The primary liquid extraction pump is disposed in the main liquid storage tank and is used to extract the liquid in the main liquid storage tank into the buffer tank. The pressure compensation bladder is connected to different positions of the liquid extraction pipe. The pressure compensation bladder is elastic and can compensate for changes in the internal liquid pressure when the liquid extraction pipe is bent and moved.

[0008] The buffer tank, the secondary liquid pump and the liquid adding nozzle are fixedly arranged on the mobile device. The secondary liquid pump is used to pump the liquid in the buffer tank to the liquid adding nozzle; the mobile device is used to drive the liquid adding nozzle, the buffer tank and the secondary liquid pump to move together, so that the liquid adding nozzle adds liquid to the test bottles one by one.

[0009] In some technical solutions, the pressure compensation bladder includes a bladder body and a first interface and a second interface provided on the bladder body, wherein the first interface and the second interface are respectively used to connect to different positions of the liquid withdrawal tube so that the liquid in the liquid withdrawal tube can flow into or out of the bladder body;

[0010] An elastic telescopic portion is provided in the middle of the sac, and the elastic telescopic portion can elastically expand and contract so that the internal liquid pressure can be kept constant when the volume of the sac changes.

[0011] In some technical solutions, the first interface is located at one end of the elastic telescopic portion, and the second interface is located at the other end of the elastic telescopic portion; and

[0012] The liquid extraction pipe comprises a first straight pipe section, a second straight pipe section and a variable bend pipe section, and when the moving device moves, the position of the variable bend pipe section changes accordingly;

[0013] The first interface is connected to the first straight pipe section, and the second interface is connected to the second straight pipe section.

[0014] In some technical solutions, the buffer tank includes a liquid level sensor. When the liquid level in the buffer tank is lower than the low water level, the first-level liquid pump starts to pump liquid; when the liquid level in the buffer tank is higher than the high water level, the first-level liquid pump stops pumping liquid.

[0015] In some technical solutions, the moving device includes a longitudinal moving axis and a transverse moving axis;

[0016] The transverse moving shaft is movably arranged on the longitudinal moving shaft, and the buffer tank, the secondary liquid pump and the liquid adding nozzle are arranged on the transverse moving shaft through a bracket.

[0017] In some technical solutions, the secondary liquid pump is a high-precision peristaltic pump.

[0018] In some technical solutions, the first-stage liquid pump is a vibration pump.

[0019] In some technical solutions, a detachable tray is provided on the rack, a plurality of elastic bottle clamps are provided on the tray, and the test bottles are arranged in the bottle clamps.

[0020] In some technical solutions, the outside of the liquid extraction pipe is wrapped with a chain pipe support, and a storage cabinet is provided at the bottom of the frame.

[0021] Different from the prior art, the above technical solution provides a fiber testing liquid-adding device for adding liquid to fiber testing samples. The fiber testing liquid-adding device includes a frame, a movable device, and a liquid-adding device. The liquid-adding device includes a liquid-adding nozzle, a buffer tank, a main liquid storage tank, a primary liquid pump, a secondary liquid pump, and a pressure compensation bag. The main liquid storage tank and the buffer tank are connected by a liquid-drawing tube. The primary liquid pump is disposed in the main liquid storage tank and is configured to pump liquid from the main liquid storage tank into the buffer tank. The pressure compensation bag is connected to different positions of the liquid-drawing tube and has elasticity to compensate for changes in internal liquid pressure when the liquid-drawing tube is bent and moved. The buffer tank, the secondary liquid pump, and the liquid-adding nozzle are fixedly mounted on the movable device. The secondary liquid pump is configured to pump liquid from the buffer tank to the liquid-adding nozzle. The movable device is configured to drive the liquid-adding nozzle, the buffer tank, and the secondary liquid pump to move together, so that the liquid-adding nozzle adds liquid to the test bottles one by one. In this technical solution, a buffer tank is set up to improve the accuracy of liquid addition through secondary liquid pumping, wherein the buffer tank, the secondary liquid pump and the liquid adding nozzle are fixedly installed on the bracket. Therefore, when the moving device drives the liquid adding nozzle to move, the buffer tank and the secondary liquid pump move together with it, avoiding the fluctuation of the liquid addition amount caused by the relative position change among the buffer tank, the secondary liquid pump and the liquid adding nozzle, thereby ensuring the consistency of the liquid pumping of the secondary liquid pump each time.

[0022] In addition, the above technical solution adds a pressure compensation bag to the liquid extraction tube. The pressure compensation bag is elastic and can compensate for the changes in internal liquid pressure when the liquid extraction tube bends and moves. Therefore, when the moving device drives the buffer tank and the liquid extraction tube connected thereto to move, the liquid extraction tube will not cause fluctuations in the liquid extraction amount due to changes in internal pressure during movement, thereby further ensuring the consistency of liquid addition at the filling nozzle.

[0023] The above-mentioned records related to the content of the invention are only an overview of the technical solution of this application. In order to enable ordinary technicians in this field to understand the technical solution of this application more clearly, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purposes and other purposes, features and advantages of this application easier to understand, the following is an explanation in combination with the specific implementation methods and drawings of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and are not to be considered as limiting the present application.

[0025] In the drawings of the specification:

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the fiber detection and liquid adding device according to the specific embodiment;

[0027] Figure 2 It is a front view of the fiber detection and liquid adding device according to the specific embodiment;

[0028] Figure 3 It is a side view of the fiber detection and liquid adding device according to the specific embodiment;

[0029] Figure 4 This is a schematic structural diagram of the buffer tank, secondary liquid pump, and liquid adding nozzle described in the specific implementation method;

[0030] Figure 5 Schematic diagram of the liquid adding channel of the fiber detection liquid adding device according to the specific embodiment;

[0031] Figure 6 This is a schematic structural diagram of the pressure compensation bladder described in the specific embodiment;

[0032] The reference numerals in the above drawings are described as follows:

[0033] 1. Secondary liquid pump;

[0034] 2. Horizontal movement axis;

[0035] 3. Display screen;

[0036] 4. Test bottle;

[0037] 5. Lockers;

[0038] 6. Longitudinal moving axis;

[0039] 7. Main liquid storage tank placement cabinet;

[0040] 8. Buffer pool;

[0041] 20. Main liquid tank;

[0042] 30. Primary liquid pump;

[0043] 11. Liquid filling nozzle;

[0044] 12. Liquid extraction pipe; 121. First straight pipe section; 122. Variable bend pipe section; 123. Second straight pipe section;

[0045] 13. Connecting pipe 1;

[0046] 14. Connecting pipe 2;

[0047] 15. Pressure compensation bladder; 150. Bladder body; 151. Elastic expansion portion; 152. Interface 1; 153. Interface 2; DETAILED DESCRIPTION

[0048] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0049] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0050] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0051] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0052] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0053] Without further limitations, in this application, the words "include", "comprise", "have" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product that includes the elements, so that the process, method or product that includes a series of elements may include not only those defined elements, but also other elements that are not explicitly listed, or also include elements inherent to such process, method or product.

[0054] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0055] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0056] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0057] In the prior art, the dosing accuracy of the liquid-feeding devices used for fiber testing is low, especially when the dosing nozzle is moved to either side of the dosing range, resulting in significant deviations in the amount of liquid added. Therefore, improving the dosing accuracy of the dosing device has become a pressing technical issue in the field. The applicant discovered that in the prior art, all fiber dosing devices utilize a single-stage dosing structure, where the dosing nozzle is connected to a liquid storage tank via a pipe, and a pump delivers liquid to the dosing nozzle. In other words, a single pump pumps liquid from the tank into the test bottles. However, when the dosing nozzle is moved above different test bottles, the pipe bends and moves with it, causing pressure fluctuations within the pipe and affecting the dosing accuracy of the dosing nozzle. Therefore, to avoid fluctuations in the amount of liquid added caused by the movement of the pumping tube, the present application proposes a novel solution. The present fiber testing dosing device incorporates a two-stage pumping mechanism and a pressure compensation capsule. The two-stage pumping mechanism and the pressure compensation capsule work together to address the problem of fluctuating dosing amounts, thereby improving dosing accuracy. The two-stage liquid extraction mechanism includes a main liquid storage tank, a buffer tank, a primary liquid extraction pump, and a secondary liquid extraction pump. The primary liquid extraction pump first extracts the liquid in the main liquid storage tank into the buffer tank, and then the secondary liquid extraction pump fills the liquid in the buffer tank into the test bottle. The buffer tank, the secondary liquid extraction pump, and the liquid adding nozzle are mounted on a mobile device via a bracket. Therefore, the positions of the buffer tank, the secondary liquid extraction pump, and the liquid adding nozzle are relatively fixed and will not change due to the movement of the liquid adding nozzle, thereby improving the liquid adding accuracy of the liquid adding nozzle. In addition, the pressure compensation capsule is elastic and is connected to different positions of the liquid extraction tube. The pressure compensation capsule can compensate for the changes in internal liquid pressure when the liquid extraction tube bends and moves, thereby further improving the liquid adding accuracy of the liquid adding nozzle.

[0058] See also Figures 1 to 6 , this embodiment provides a fiber detection liquid adding device for adding liquid to the fiber detection sample. The fiber detection liquid adding device can be used to add a certain amount of distilled water to the fiber sample when detecting the fiber pH value. When detecting the fiber pH value, a fiber extract needs to be prepared. The fiber needs to be pretreated during the detection, and the pretreatment is mainly to obtain the fiber extraction liquid through distilled water or deionized water. The distilled water or deionized water used for the extraction liquid should be at least the third grade specified in ISO3696, and the pH value should be between 5.0-7.5. The distilled water used should be tested before first use. If it is not within the specified range, it should be distilled using chemical-resistant glassware. If the distilled water is not the third grade, boil 150mL of distilled water in a beaker for (10±1) minutes, isolate it from the air, and cool it to room temperature before preparing it as test water.

[0059] When preparing the fiber extract, weigh 3 parts (2±0.05g) of fiber sample, cut them into small pieces of 5mm*5mm, and place them in a test bottle (conical flask) containing 100mL of distilled water (pH value 5.0-7.5). Then place the test bottle on an oscillator to shake it to make it fully soaked. After placing the test bottle on the oscillator and shaking it for 1h, take out the extract liquid of the test sample. In this process, it is necessary to use the fiber detection liquid adding device described in this embodiment to add 100mL of distilled water to the test bottle of the fiber sample, and then place the test bottle and the extract liquid therein with a tray on the above-mentioned fiber pH detection device for pH detection.

[0060] like Figure 1 、 Figure 2 and Figure 3 As shown, the fiber detection liquid-adding device includes: a frame, a moving device and a liquid-adding device. The detection bottles 4 containing fiber detection samples are placed on the frame, and then the moving device drives the liquid-adding device to move to the top of each detection bottle, and a certain amount of distilled water is added to each detection bottle. The moving device includes a longitudinal moving shaft 6 and a transverse moving shaft 2; the transverse moving shaft 2 is movably arranged on the longitudinal moving shaft 6, and the buffer tank 8, the secondary liquid pump 1 and the liquid-adding nozzle 11 are arranged on the transverse moving shaft 2 through a bracket. In order to facilitate the loading and unloading of the detection bottles, a detachable tray is provided on the frame, and a plurality of elastic bottle clamps are provided on the tray, and the detection bottle 4 is arranged in the bottle clamp. During the detection, a plurality of detection bottles can be installed on the tray first, and then the entire tray can be loaded onto the slide rail of the frame.

[0061] like Figure 1 Figure 4 and Figure 5 As shown, the liquid adding device includes a liquid adding nozzle 11 , a buffer tank 8 , a main liquid storage tank 20 , a primary liquid pump 30 , a secondary liquid pump 1 and a pressure compensation bag 15 .

[0062] The main liquid storage tank 20 is connected to the buffer pool 8 through a liquid extraction tube 12. The primary liquid extraction pump 30 is arranged in the main liquid storage tank 20 and is used to extract the liquid in the main liquid storage tank 20 into the buffer pool 8. The pressure compensation bag 15 is connected to different positions of the liquid extraction tube 12. The pressure compensation bag has elasticity to compensate for the changes in the internal liquid pressure when the liquid extraction tube 12 bends and moves. The buffer pool 8, the secondary liquid extraction pump 1 and the liquid adding nozzle 11 are fixedly arranged on the mobile device. The secondary liquid extraction pump 1 is used to extract the liquid in the buffer pool 8 to the liquid adding nozzle 11. The mobile device is used to drive the liquid adding nozzle 11, the buffer pool 8 and the secondary liquid extraction pump 1 to move together, so that the liquid adding nozzle 11 adds liquid to the test bottles 4 one by one.

[0063] The longitudinal moving shaft 6 and the transverse moving shaft 2 constitute a moving device. A display screen 3 is provided on the frame. The display screen 3 may be a touch screen. The display screen 3 can display various parameters of the fiber detection and liquid addition device and receive parameter modification and setting operations from the operator. To ensure the liquid extraction tube 12, the outside of the liquid extraction tube 12 is wrapped with a chain pipe support. A storage cabinet 5 is provided at the bottom of the frame.

[0064] like Figure 2 and Figure 4 As shown, the liquid extraction pipe 12 is connected to the buffer tank 8, the buffer tank 8 is connected to the secondary liquid extraction pump 1 via a connecting pipe 13, and the secondary liquid extraction pump 1 is connected to the liquid addition nozzle 11 via a connecting pipe 2 14. The buffer tank 8, the secondary liquid extraction pump 1, and the liquid addition nozzle 11 are mounted on the transverse movable shaft via the same bracket, so that the relative positions of the buffer tank 8, the secondary liquid extraction pump 1, and the liquid addition nozzle 11 are fixed at different positions.

[0065] The bottom of the frame is provided with a main liquid storage tank placement cabinet 7, and the main liquid storage tank 20 is placed on the main liquid storage tank placement cabinet 7. In order to improve the storage function, the main liquid storage tank placement cabinet 7 side of the bottom of the frame is provided with a storage cabinet.

[0066] like Figure 5 As shown, in some embodiments, the pressure compensation bladder 15 includes a bladder body 150 and a first interface 152 and a second interface 153 provided on the bladder body 150. The first interface 152 and the second interface 153 are respectively used to connect to different positions of the liquid withdrawal tube 12, so that the liquid in the liquid withdrawal tube 12 can flow into or out of the bladder body 150.

[0067] An elastically retractable portion 151 is provided in the middle of the capsule 150 . The elastically retractable portion 151 can elastically retract so that the internal liquid pressure can be kept constant when the volume of the capsule 150 changes.

[0068] In some embodiments, the interface 152 is located at one end of the elastic telescopic portion 151, and the interface 2 153 is located at the other end of the elastic telescopic portion 151; and the liquid suction tube 12 includes a first straight pipe section 121, a second straight pipe section 123 and a variable bend pipe section 122, and when the moving device moves, the position of the variable bend pipe section 122 changes accordingly; the interface 152 is connected to the first straight pipe section 121, and the interface 2 153 is connected to the second straight pipe section 123.

[0069] Because the buffer tank 8 is positioned on the transverse axis, the length of the liquid extraction tube 12 connected to the buffer tank 8 has a certain margin. Furthermore, the liquid extraction tube 12 is coiled in a Z-shaped or serpentine shape, and thus comprises a first straight tube section 121, a second straight tube section 123, and a variable bend section 122. The variable bend section 122 refers to the curved portion of the liquid extraction tube 12 that changes position as the liquid extraction tube 12 moves with the buffer tank. The pressure compensation bladder 15 can be made of an elastic non-metallic material such as silicone or rubber. It can be cylindrical or cylindrical in shape, allowing it to elastically expand and contract at both ends. Multiple different positions of the liquid extraction tube 12 are connected to the pressure compensation bag 15. When the internal pressure of the liquid extraction tube 12 increases due to movement, the liquid in the liquid extraction tube 12 can partially flow into the pressure compensation bag 15, thereby reducing the pressure increase of the liquid extraction tube 12; similarly, when the internal pressure of the liquid extraction tube 12 decreases due to movement, the liquid in the pressure compensation bag 15 can flow back into the liquid extraction tube 12, thereby reducing the pressure decrease of the liquid extraction tube 12.

[0070] In some embodiments, to precisely control the liquid level within the buffer tank 8, the buffer tank 8 includes a liquid level sensor. When the liquid level in the buffer tank 8 falls below the low water level, the primary pump 30 starts pumping liquid; when the liquid level in the buffer tank 8 rises above the high water level, the primary pump 30 stops pumping liquid. In the aforementioned embodiment, to ensure that the secondary pump is a high-precision peristaltic pump, the primary pump 30 is a vibrating pump. In other embodiments, the secondary pump may also be a gear pump.

[0071] In the above-described embodiment, the fiber testing liquid-adding device is equipped with a two-stage liquid-pumping mechanism and a pressure-compensating bladder. The two-stage liquid-pumping mechanism and the pressure-compensating bladder work together to address the problem of fluctuating liquid addition amounts, thereby improving liquid-adding accuracy. The two-stage liquid-pumping mechanism includes a main liquid reservoir, a buffer tank, a primary liquid-pumping pump, and a secondary liquid-pumping pump. The primary liquid-pumping pump first pumps liquid from the main liquid reservoir into the buffer tank, and the secondary liquid-pumping pump then adds the liquid from the buffer tank to the testing bottle. The buffer tank, secondary liquid-pumping pump, and liquid-adding nozzle are mounted on a mobile device via a bracket. Therefore, the positions of the buffer tank, secondary liquid-pumping pump, and liquid-adding nozzle are relatively fixed and do not change with movement of the liquid-adding nozzle, thereby improving liquid-adding accuracy of the liquid-adding nozzle. Furthermore, the pressure-compensating bladder is elastic and connects to different locations of the liquid-drawing tube. The pressure-compensating bladder compensates for changes in internal liquid pressure when the liquid-drawing tube bends and moves, further improving liquid-adding accuracy of the liquid-adding nozzle.

[0072] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A fiber testing liquid adding device, used for adding liquid to fiber testing samples, characterized in that: The fiber detection and liquid adding device comprises: a frame, a moving device and a liquid adding device; The test bottle is placed on the rack; the liquid adding device includes a liquid adding nozzle, a buffer tank, a main liquid storage tank, a primary liquid pump, a secondary liquid pump and a pressure compensation bag; The main liquid storage tank is connected to the buffer tank via a liquid extraction pipe. The primary liquid extraction pump is disposed in the main liquid storage tank and is used to extract the liquid in the main liquid storage tank into the buffer tank. The pressure compensation bladder is connected to different positions of the liquid extraction pipe. The pressure compensation bladder is elastic and can compensate for changes in the internal liquid pressure when the liquid extraction pipe is bent and moved. The buffer tank, the secondary liquid pump, and the liquid adding nozzle are fixedly arranged on the mobile device. The secondary liquid pump is used to pump the liquid in the buffer tank to the liquid adding nozzle. The mobile device is used to drive the liquid adding nozzle, the buffer tank, and the secondary liquid pump to move together, so that the liquid adding nozzle adds liquid to the test bottles one by one. The pressure compensation bag includes a bag body and interface 1 and interface 2 arranged on the bag body. The liquid extraction tube includes a first straight pipe section, a second straight pipe section and a variable bend pipe section. The interface 1 is connected to the first straight pipe section, and the interface 2 is connected to the second straight pipe section.

2. The fiber detection and liquid adding device according to claim 1, characterized in that: The first interface and the second interface are respectively used to connect to different positions of the liquid extraction tube, so that the liquid in the liquid extraction tube flows into or out of the capsule; An elastic telescopic portion is provided in the middle of the sac, and the elastic telescopic portion can elastically expand and contract so that the internal liquid pressure can be kept constant when the volume of the sac changes.

3. The fiber detection and liquid adding device according to claim 2, characterized in that: The first interface is located at one end of the elastic telescopic portion, and the second interface is located at the other end of the elastic telescopic portion; when the moving device moves, the position of the variable bend section changes accordingly.

4. The fiber detection and liquid adding device according to any one of claims 1 to 3, characterized in that: The buffer tank includes a liquid level sensor. When the liquid level of the buffer tank is lower than the low water level, the primary liquid pump starts to pump liquid; when the liquid level of the buffer tank is higher than the high water level, the primary liquid pump stops pumping liquid.

5. The fiber detection and liquid adding device according to claim 1, characterized in that: The moving device includes a longitudinal moving axis and a transverse moving axis; The transverse moving shaft is movably arranged on the longitudinal moving shaft, and the buffer tank, the secondary liquid pump and the liquid adding nozzle are arranged on the transverse moving shaft through a bracket.

6. The fiber detection and liquid adding device according to claim 1, characterized in that: The secondary liquid pump is a high-precision peristaltic pump.

7. The fiber detection and liquid adding device according to claim 1, characterized in that: The primary liquid pump is a vibration pump.

8. The fiber detection and liquid adding device according to claim 1, characterized in that: The frame is provided with a detachable tray, the tray is provided with a plurality of elastic bottle clamps, and the detection bottles are arranged in the bottle clamps.

9. The fiber detection and liquid adding device according to claim 1, characterized in that: The outside of the liquid extraction pipe is wrapped with a chain-type pipe support, and a storage cabinet is provided at the bottom of the frame.

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