A two-way sampling device and sampling method in a cotton short fiber content test
By using a liftable comb needle base plate and a rotatable sampling mechanism in cotton short fiber rate testing, the problems of low cotton strip preparation efficiency and large data dispersion were solved, achieving efficient and stable short fiber rate testing.
Patent Information
- Application Number
- CN202611100210.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-23
- Publication Date
- 2026-08-25
AI Technical Summary
In existing cotton short fiber rate testing, the cotton strip preparation efficiency is low and the test data utilization rate is not high, resulting in low testing efficiency and large data dispersion, which cannot meet the growing testing needs.
It adopts a liftable comb needle base plate and a symmetrically arranged rotatable sampling mechanism, combined with a cotton swab fixing mechanism and a positioning seat, to achieve dual-path sampling and needle bed rotation operation, ensuring accurate positioning and reducing errors.
It significantly improves the efficiency of cotton strip sampling and utilization, enhances the stability and repeatability of test data, reduces data dispersion, and improves the overall efficiency of short fiber rate testing.
Smart Images
Figure CN122631386A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile testing technology, and in particular to a dual-path sampling device and sampling method for testing the short fiber content of cotton. Background Technology
[0002] With the improvement of automation in cotton short fiber rate testing and the enhancement of testing efficiency in instrumental impartial inspection, the current testing methods used by textile enterprises and fiber inspection departments for short fiber rate testing all employ a method of taking samples from one end of the cotton strip. However, the efficiency of cotton strip preparation is low, and the utilization rate of the prepared cotton strips is not high, resulting in low overall testing efficiency of short fiber rate testing instruments. In addition, the amount of test data from a single strip preparation is too small, resulting in excessive dispersion of short fiber test data, which cannot meet the growing demand for cotton short fiber rate testing. Summary of the Invention
[0003] To address the aforementioned deficiencies or shortcomings, the present invention aims to provide a dual-path sampling device and sampling method for cotton short fiber rate testing.
[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A dual-path sampling device for cotton short fiber rate testing includes: a liftable comb needle row base plate, on which symmetrically arranged rotating sampling mechanisms with identical structures are arranged, and on which a cotton sliver fixing mechanism is provided for fixing the cotton sample, and on both sides of the rotating sampling mechanism are positioning seats for positioning and calibration of the rotating sampling mechanism.
[0005] The rotary sampling mechanism includes: a rotary shaft mounted on the bottom plate of the comb needle row, a rotating seat plate mounted on the rotary shaft, and a cotton swab fixing mechanism mounted on the rotating seat plate.
[0006] The two sets of identical rotating base plates are independently mounted on the comb needle row base plate via a rotary shaft, and can be rotated simultaneously or independently; the upper end of the positioning seat is provided with a U-shaped groove, and the two ends of the rotating base plate are provided with pins that engage with the U-shaped groove; when the comb needle row base plate falls, the pins at both ends of the rotating base plate slide into the U-shaped groove for accurate positioning.
[0007] The tampon fixing mechanism includes: a needle bed assembly mounted on a rotating base plate of a needle bed assembly; a tampon pressure plate mounted on the needle bed assembly; and a flip-top tampon pressure block mounted on the tampon pressure plate.
[0008] The bottom of the comb needle base plate is equipped with a lifting mechanism for lifting, which drives the comb needle base plate to move up and down.
[0009] The lifting mechanism includes: a base, on which a lifting cylinder is mounted, and the movable end of the lifting cylinder is connected to the bottom of the needle plate.
[0010] The bottom of the base is provided with a guide rod to guide the lifting mechanism.
[0011] Both sets of needle bed assemblies include: several needle combs and comb spacers, wherein the comb spacers are fixed to the comb holders by a clamping mechanism.
[0012] The positioning accuracy is calibrated by the positioning seat; ultimately, the requirement of minimal error in positioning sampling test before and after the needle bed rotation is achieved.
[0013] A sampling method based on the dual-path sampling device in the cotton short fiber rate test, comprising: The cotton strip is vertically pressed into the needle bed assembly through the cotton strip fixing mechanism, and pressed to the surface of the cotton strip pressure plate in the depth direction so that the cotton strip is perpendicular to the base plane of the needle bed comb plate, in order to complete the sampling test method of aligning one end to meet the short fiber rate test requirements. The rotary sampling mechanism rotates the needle bed 180° to achieve single-end sampling and testing of the short fiber rate of the cotton sample placed on the other end of the cotton strip on the needle bed.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a dual-path sampling device and method for cotton short fiber rate testing. By setting a liftable comb needle base plate and symmetrically arranging a rotatable rotary sampling mechanism with the same structure on the comb needle base plate, it can simultaneously perform cotton sliver picking, sample placement, and needle bed rotation operations, achieving precise positioning of the dual-path needle bed components to ensure repeatability accuracy before and after needle bed rotation, avoiding the introduction of additional sampling and testing errors. This device and method can significantly improve the sampling utilization efficiency of cotton strips, double the number of sampling tests for the same sample, improve the stability of cotton short fiber rate test data, greatly increase the utilization rate of cotton strip (strip) short fiber rate testing, double the amount of short fiber rate test data, and significantly reduce the dispersion of short fiber rate test data. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the dual-path sampling device for cotton short fiber rate testing in this invention. Figure 2 This is a schematic diagram of the flip-top cotton sliver pressing block structure of the dual-path sampling device in the cotton short fiber rate test of this invention; Figure 3 This is a side view of the dual-path sampling device for cotton short fiber rate testing in this invention; Figure 4 This is a schematic diagram of the rotating sampling action of the dual-path sampling device in the cotton short fiber rate test of the present invention.
[0017] In the diagram, 1—needle bed assembly; 2—flip-top tampon pressure block; 3—tampon pressure plate; 4—rotary seat plate; 42 - Pin; 5 - Lifting cylinder; 6 - Comb needle base plate; 7 - Base; 8 - Positioning seat; 11—Needle comb; 12—Comb comb spacer; 13—Comb comb seat; 41—Rotating shaft; 42—Pin shaft; 61—Coarse positioning mechanism; 71—Guiding device; 81—U-shaped groove. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the protection scope of the present invention.
[0019] like Figure 1 As shown, a dual-path sampling device for cotton short fiber rate testing includes: a liftable comb needle row base plate 6, on which symmetrically arranged rotating sampling mechanisms with identical structures are arranged, and on which a cotton sliver fixing mechanism is provided for fixing the cotton sample, and on both sides of the rotating sampling mechanism are positioning seats 8 for positioning and calibration of the rotating sampling mechanism.
[0020] Specifically, the rotary sampling mechanism includes: a rotary shaft 41 mounted on the comb needle base plate 6, a rotating seat plate 4 mounted on the rotary shaft 41, and a cotton swab fixing mechanism mounted on the rotating seat plate 4.
[0021] For example, in order to independently control each rotary sampling mechanism, the two sets of identical rotating base plates 4 are independently mounted on the comb pin base plate 6 via rotary shafts 41, and can be rotated simultaneously or independently. The rotation can be manual or driven by a motor or other device. In addition, the upper end of the positioning seat 8 is provided with a U-shaped groove 81, and the two ends of the rotating base plate 4 are provided with pins 42 that engage with the U-shaped groove 81. At the same time, a coarse positioning structure 61 is provided at the bottom of the comb pin base plate 6 to coarsely position the working position of the rotating base plate 4. When the comb pin base plate 6 falls, the pins 42 at both ends of the rotating base plate 4 slide into the U-shaped groove 81, calibrating the positioning of the coarse positioning structure 61, which can perform dual positioning to ensure the repeatability accuracy of the entire sampling test.
[0022] Preferred, such as Figure 2As shown, the tampon fixing mechanism includes: a needle bed assembly 1 mounted on a needle bed assembly rotating base plate 4; a tampon pressure plate 3 mounted on the needle bed assembly 1; and a flip-top tampon pressure block 2 mounted on the tampon pressure plate 3. The flip-top tampon pressure block 2 and the flip-top tampon pressure plate 3 enable the pressing and fixing of the tampon strip, and the removal of the tampon strip after sampling and testing.
[0023] For example, in this invention, it is necessary to achieve steady lifting and lowering of the comb pin base plate 6. Therefore, this invention installs a lifting mechanism at the bottom of the comb pin base plate 6, which drives the comb pin base plate 6 to move up and down. The lifting mechanism includes: a base 7, on which a lifting cylinder 5 is installed, the movable end of which is connected to the bottom of the comb pin base plate 6. A guide rod 71 is provided at the bottom of the base 7 to guide the lifting mechanism.
[0024] like Figure 3 As shown, both sets of needle bed assemblies 1 include: a plurality of needle combs 11 and comb spacers 12, wherein the comb spacers 12 are fixed to the comb spacers 13 by means of clamping.
[0025] The positioning seat 8 calibrates the positioning accuracy, ultimately achieving the requirement of minimal error in positioning sampling tests before and after the needle bed 1 rotates.
[0026] In addition, such as Figure 4 As shown, the present invention also provides a sampling method based on the dual-path sampling device in the above-mentioned cotton short fiber rate test, comprising: The cotton strip is pressed vertically into the needle bed assembly 1 through the cotton strip fixing mechanism, and pressed to the surface of the cotton strip pressure plate 3 in the depth direction, so that the cotton strip is perpendicular to the base plane of the needle bed comb plate, in order to meet the sampling test method of aligning one end to complete the short fiber rate test requirements. Manually rotate the rotating seat plate to drive the sampling needle bed to rotate 180°, and complete the short fiber rate sampling test for the end of the cotton strip that is not fully collected.
[0027] This invention includes: two sets of needle beds 1, with cotton strip pressing blocks 2 positioned above each needle bed 1, and a cotton strip pressing plate 3 for fixing cotton strips between the cotton strip pressing blocks 2 and the needle bed 1; a rotating seat plate 4 for rotating and sampling cotton strips is positioned below each needle bed 1, and the rotating seat plate 4 is connected to a combing needle row base plate 6 via a rotating shaft 41; the combing needle row base plate 6 is equipped with a coarse positioning mechanism 61 for coarsely positioning the working position of the rotating seat plate, and the combing needle row base plate 6 is connected to a lifting cylinder 5; the lifting cylinder 5 is mounted on a base 7 at the bottom of the device; the base 7 is equipped with a guide device 71 for lifting the needle bed 1; and a precision positioning seat 8 for calibrating the coarse positioning of the rotating base is located on the outside of the device. Both identical needle bed assemblies 1 are mounted on their respective rotating seat plates 4 and can rotate simultaneously and independently. Furthermore, the two sets of needle beds 1 can be raised and lowered simultaneously through the lifting cylinder 5 and the guide device 71. After being raised, they can rotate independently and be coarsely positioned. After being lowered, the positioning accuracy can be calibrated through the positioning seat 8. Ultimately, the small error requirement for positioning sampling test before and after the needle bed 1 rotates is achieved.
[0028] The needle bed assembly 1 is formed by clamping together several comb blades 11 and comb blade spacers 12. A fiber pressing block is provided above it. The fiber pressing block is a flip-top mechanism that presses the cotton strip into the needle bed to a fixed depth. Below the cotton strip pressed into the needle bed assembly, there is a cotton strip pressing plate for removing the sampled cotton strip from the needle bed assembly. The cotton strip pressing plate is another flip-top mechanism that pushes the sampled and tested cotton strip out of the needle bed assembly 1. A rotating base plate 4 is provided below the needle bed assembly 1. The rotating base plate 4 is a base with built-in bearings that can rotate around its own axis of symmetry, providing rotational freedom for the needle bed assembly. The rotating base plate 4 is mounted on the comb needle row base plate 6 via a rotary shaft 41. The comb needle row base plate 6 symmetrically supports two needle bed assemblies 1 on the left and right sides, and is provided with coarse positioning mechanisms 61 on each side. A lifting cylinder 5 is connected below it, which can lift the needle bed assembly 1 outside the short fiber rate testing instrument, facilitating cotton strip taking, placement, and needle bed rotation operations. The lifting cylinder 5 is fixed on the base equipped with a guide device. When the cylinder falls, positioning blocks are set on the left and right sides of the base, which are tightly engaged with the pins 42 at both ends of the rotating base plate 4 to achieve precise positioning of the dual-path needle bed assembly, so as to ensure the repeatability accuracy of the needle bed before and after rotation and avoid introducing additional sampling and testing errors. This device and method can significantly improve the sampling utilization efficiency of cotton strips, double the number of sampling tests for the same sample, and improve the stability of cotton short fiber rate test data.
[0029] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of the present invention. Therefore, any improvements or modifications that may be made by those skilled in the art to certain parts of the present invention still embody the principles of the present invention and achieve the objectives of the present invention, and all fall within the scope of protection of the present invention.
Claims
1. A dual-channel sampling device for testing the short fiber content of cotton, characterized in that, include: The comb needle row base plate (6) is adjustable. The comb needle row base plate (6) is symmetrically provided with rotating sampling mechanisms of the same structure. The rotating sampling mechanism is provided with a cotton strip fixing mechanism for fixing the cotton sample. The rotating sampling mechanism is provided with positioning seats (8) on both sides for positioning and calibrating the rotating sampling mechanism.
2. The dual-path sampling device for cotton short fiber rate testing according to claim 1, characterized in that, The rotary sampling mechanism includes: a rotary shaft (41) mounted on the comb needle base plate (6), a rotating seat plate (4) mounted on the rotary shaft (41), and the cotton swab fixing mechanism mounted on the rotating seat plate (4).
3. The dual-path sampling device for cotton short fiber rate testing according to claim 2, characterized in that, The two sets of identical rotating base plates (4) are independently mounted on the comb needle base plate (6) via rotating shafts (41), and can be rotated simultaneously or independently; the upper end of the positioning seat (8) is provided with a U-shaped groove (81), and the two ends of the rotating base plate (4) are provided with pins (42) that engage with the U-shaped groove (81); when the comb needle base plate (6) falls, the pins (42) at both ends of the rotating base plate (4) slide into the U-shaped groove.
4. The dual-channel sampling device for cotton short fiber rate testing according to claim 2, characterized in that, The tampon fixing mechanism includes: a needle bed assembly (1) mounted on a needle bed assembly rotating seat plate (4); a tampon pressure plate (3) mounted on the needle bed assembly (1); and a flip-top tampon pressure block (2) mounted on the tampon pressure plate (3).
5. The dual-channel sampling device for cotton short fiber rate testing according to claim 1, characterized in that, The bottom of the comb needle base plate (6) is equipped with a lifting mechanism for lifting, which drives the comb needle base plate (6) to move up and down.
6. The dual-path sampling device for cotton short fiber rate testing according to claim 6, characterized in that, The lifting mechanism includes: a base (7), on which a lifting cylinder (5) is installed, and the movable end of the lifting cylinder (5) is connected to the bottom of the needle plate base (6).
7. The dual-path sampling device for cotton short fiber rate testing according to claim 6, characterized in that, The bottom of the base (7) is provided with a guide rod (71) for guiding the lifting mechanism.
8. The dual-path sampling device for cotton short fiber rate testing according to claim 1, characterized in that, Both sets of needle bed assemblies (1) include: several needle combs (11) and comb spacers (12), wherein the comb spacers (12) are fixed to the comb spacers (13) by means of clamping.
9. The dual-path sampling device for cotton short fiber rate testing according to claim 1, characterized in that, The positioning accuracy is calibrated by the positioning seat (8); ultimately achieving the requirement of minimal error in the positioning sampling test before and after the needle bed (1) rotates.
10. A sampling method based on the dual-path sampling device for cotton short fiber rate testing as described in claim 1, characterized in that, include: The cotton strip is pressed vertically into the needle bed assembly (1) through the cotton strip fixing mechanism, and pressed to the surface of the cotton strip pressure plate (3) in the depth direction so that the cotton strip is perpendicular to the base plane of the needle bed comb plate, so as to cooperate with the sampling test method of aligning one end to complete the short fiber rate test requirements. Manually rotate the rotating seat plate to drive the sampling needle bed to rotate 180°, and complete the short fiber rate sampling test for the cotton sample with one end not fully collected.