Swab flocking device and swab blowing flocking process

Abstract

The present invention discloses a swab flocking device and a swab blowing flocking process, wherein a conveying drag chain is traversed on a flocking box, a plurality of swab hangers are arranged at intervals on the conveying drag chain, and the conveying drag chain is connected to a first motor; a plurality of fans are arranged inside the flocking box and outside the conveying drag chain; during flocking, the swab rod is suspended on the swab hanger and is conveyed forward by the conveying drag chain, and a plurality of fans blow the fluff onto the end of the swab rod. The present invention adopts a blowing flocking method to flock the swab rod, and the fluff is evenly attached to the surface of the swab rod, and the flocking effect is good. During the flocking process, only wind power needs to be provided by the fan, which greatly reduces the demand for electric energy, reduces power consumption, and reduces energy consumption compared to the electrostatic flocking method, and also avoids the occurrence of electrostatic effect during the flocking process, thereby ensuring the flocking effect and the quality of the swab.

Description

Technical Field

[0001] The invention relates to the technical field of swab flocking, in particular to a swab flocking device which adopts a flock blowing method to perform flocking and a swab flocking blowing process. Background Art

[0002] In the medical field, the method of using medical sampling swabs to collect samples and transfer them to relevant testing centers has been widely used. Commonly used medical sampling swabs include a swab rod and a swab head. The swab rod is the hand-held part, and the swab head is the part fixed at one end of the swab rod that can effectively adsorb biological samples. The swab head is used for applying medicine or wiping a certain area, and is usually used as a tool for medical examination of collecting microorganisms, exfoliated cells or secretions.

[0003] In the prior art, swabs are usually produced using the principle of electrostatic flocking. The swabs to be flocked are placed in a high-voltage electrostatic field. The villi are attracted by the plant body with different potentials and are accelerated vertically to the surface of the object to be flocked. Since the plant body is coated with adhesive, the villi are vertically adhered to the plant body. Electrostatic flocking is a production process that utilizes the natural characteristics of electric charges. The process of electrostatic flocking requires a high-voltage electrostatic generator to be set in the flocking device. The high-voltage electrostatic generator forms the high-voltage electric field required for flocking. The demand for electric energy is large, the power consumption is large, and the energy consumption is high. Moreover, electrostatic flocking is prone to electrostatic effects, resulting in electrostatic discharge and electrostatic sparks, which lead to safety hazards and affect the flocking effect, thereby affecting the quality of the swab. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned existing swabs produced by the electrostatic flocking process, the applicant provides a swab flocking device with a reasonable structure and a swab blowing flocking process, which adopts the blowing flocking method to flock the swab, reduces the demand for electrical energy, reduces energy consumption, and avoids the electrostatic effect.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A swab flocking device is provided, wherein a flocking box is crossed by a conveying drag chain, a plurality of swab hangers are arranged at intervals on the conveying drag chain, and the conveying drag chain is connected to a first motor; a plurality of fans are arranged inside the flocking box and outside the conveying drag chain; during flocking, a swab rod is suspended on the swab hanger and is conveyed forward by the conveying drag chain, and the fans blow the fluff onto the end of the swab rod.

[0007] As a further improvement of the above technical solution:

[0008] The fans include transverse fans arranged around the conveying drag chain; each transverse fan blows air transversely toward the swab hanger at the central part of the flocking box.

[0009] The fan comprises a vertical fan which is arranged at the center of the bottom of the flocking box and directly faces the conveying drag chain, and the vertical fan blows air vertically toward the swab hanger at the center of the flocking box.

[0010] A plurality of shafts are evenly fixed on the conveying drag chain, and rotating gears are rotatably connected to the shafts; a fixed frame is provided on the inner wall of the flocking box, and a plurality of fixed gears are arranged on the frame rods of the fixed frame at intervals, and the height position of the fixed gears matches the height position of the rotating gears; when the rotating gear follows the conveying drag chain to the position of the fixed gear, it meshes with the fixed gear.

[0011] A hanging ring is arranged on the bottom surface of the rotating gear; a hook is arranged on the top surface of the swab hanger, and the swab hanger is hung on the hanging ring of the rotating gear through the hook.

[0012] A filter is arranged inside the flocking box and above the conveying drag chain, and a movable sweeping plate is arranged on the upper side of the filter; the sweeping plate is connected to the second motor through a belt; a slider is fixedly arranged on the outer wall surface of the sweeping plate, and a slide rail is correspondingly arranged on the inner wall surface of the flocking box, and the slider is slidably arranged on the slide rail.

[0013] A plurality of hanging plates are evenly spaced on the swab rack, and both ends of the hanging plates are fixed on the bottom surface of the swab rack through fixing grooves; a plurality of swab rods can be hung on each hanging plate; and a grille is arranged on the circumferential wall surface of the flocking box corresponding to the transverse fan.

[0014] A swab blowing flocking process, using the above-mentioned swab flocking device to carry out flocking, comprises the following steps:

[0015] The swab rod is hung on the swab hanger, and the swab hanger is transported to the flocking box by the conveyor drag chain; the fan in the flocking box blows the fluff onto the end of the swab rod.

[0016] As a further improvement of the above technical solution:

[0017] Before the swab rod is transferred to the flocking box, the end of the swab rod is first subjected to plasma treatment, gluing and spinning treatments in sequence; after the flocking of the swab rod is completed, the swab rod is dried.

[0018] The density of flocking is between 3.8-6.0Dtex and the length is between 0.4-0.6mm.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention adopts a flocking method to flock the swab rod, and the fluff is evenly attached to the surface of the swab rod, with a good flocking effect. During the flocking process, only wind power needs to be provided by a fan. Compared with the electrostatic flocking method, the demand for electric energy is greatly reduced, the power consumption is reduced, the energy consumption is reduced, and the electrostatic effect is avoided during the flocking process, thereby ensuring the flocking effect and the quality of the swab.

[0021] The horizontal fans on all sides of the present invention blow air toward the four sides of the swab rod, so that the fluff is blown toward the swab rod on the swab hanger from all sides, which is more conducive to the fluff being evenly attached and distributed to various parts of the swab rod, and the flocking is more uniform and the flocking effect is better. The vertical fan at the bottom blows air toward the bottom of the swab rod, which is conducive to the fluff being blown toward the bottom surface of the swab rod end, which is conducive to the fluff being evenly attached and distributed to the bottom surface of the swab rod, and the flocking is more uniform and the flocking effect is better.

[0022] The swab hanger of the present invention is hung on the rotating gear, and the rotating gear meshes with the fixed gear during the forward movement. The swab hanger can rotate together with the rotating gear, so that each surface of the swab rod can receive the blowing of the transverse fan, so that the fluff falls on and adheres to the surface of the swab rod more evenly, and the flocking effect is better.

[0023] The filter of the present invention can filter the fluff, and the sweeping plate can rub the fluff on the filter by moving back and forth, which is more conducive to the fluff passing through the filter and falling into the lower cavity of the flocking box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereoscopic diagram of the present invention, in which the arrow indicates the forward direction of the conveyor drag chain.

[0025] Figure 2 for Figure 1 The arrow in the figure shows the forward direction of the conveyor chain.

[0026] Figure 3 for Figure 2 The sectional view of section AA in the figure shows the direction of travel of the conveyor chain.

[0027] Figure 4 for Figure 2 Cross-sectional view of section BB.

[0028] Figure 5 for Figure 4 Enlarged view of part C in the middle.

[0029] Figure 6 It is a schematic diagram of the partial structure inside the flocking box of the present invention.

[0030] Figure 7 It is a structural schematic diagram of the connection between the swab hanger and the rotating gear.

[0031] Figure 8 for Figure 7 main view.

[0032] Fig. 9 A perspective view of the fixing frame.

[0033] Figure 10a-10fSchematic diagram of the structure of various swab rods.

[0034] Fig.11a The cross-sectional view of the swab after flocking according to the present invention is shown under an electron microscope.

[0035] Fig.11b This is a cross-sectional view of a swab after electrostatic flocking under an electron microscope.

[0036] Figure 12a-12g This is a magnified image of the nasal swab after plasma treatment under an electron microscope.

[0037] Figure 13a-13g This is a magnified image of a nasal swab that has not been treated with plasma under an electron microscope.

[0038] Figure 14a-Figure 14e This is a magnified image of the throat swab after plasma treatment under an electron microscope.

[0039] Figure 15a-Figure 15e This is a magnified image of a throat swab that has not been treated with plasma under an electron microscope.

[0040] Figure 16a1-Figure 16a4 , Figure 16b1-Figure 16b3 This is a magnified image of the nasal swab after the glue-spinning treatment under an electron microscope.

[0041] Figure 17a1-Figure 17a4 , Figure 17b1 to Figure 17b3 This is a magnified image of a nasal swab that has not been treated with glue under an electron microscope.

[0042] In the figure: 1. flocking box; 2. filter; 3. sweeping plate; 4. conveyor drag chain; 41. sprocket; 42. shaft; 43. rotating gear; 44. hanging ring; 5. swab hanger; 51. hook; 52. hanging plate; 53. fixing groove; 6. fixing frame; 61. frame rod; 62. fixing gear; 7. horizontal fan; 8. vertical fan; 9. first motor; 10. second motor; 11. belt; 12. slide rail; 13. slider; 14. perforation; 15. grille; 20. swab rod. DETAILED DESCRIPTION

[0043] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0044] like Figure 1 , Figure 2 As shown, the middle parts of the left and right sides of the lower part of the flocking box 1 of the present invention are respectively provided with perforations 14, and the conveying drag chain 4 crosses through the perforations 14 of the flocking box 1, that is, the conveying drag chain 4 crosses through the lower center of the flocking box 1. A plurality of swab hangers 5 are arranged at intervals on the conveying drag chain 4; sprocket wheels 41 are connected to both ends of the conveying drag chain 4, and the sprocket wheel 41 at one end is connected to the first motor 9, and the first motor 9 drives the conveying drag chain 4 to move through the sprocket wheel 41, thereby driving the swab hanger 5 forward.

[0045] like Figure 1 , Figure 4 As shown, a filter 2 is arranged inside the flocking box 1 and above the conveyor drag chain 4, and a movable sweeping plate 3 is arranged on the upper side of the filter 2. Figure 4 , Figure 5 As shown, sliders 13 are fixedly arranged on the outer wall surfaces of the front and rear sides of the sweeping plate 3, and slide rails 12 are correspondingly arranged on the inner wall surfaces of the front and rear sides of the flocking box 1, and the sliders 13 are slidably arranged on the slide rails 12; the sweeping plate 3 is connected to the second motor 10 through the belt 11, and the second motor 10 can drive the sweeping plate 3 to move back and forth on the filter 2 along the slide rails 12 through the belt 11. The filter 2 can filter the fluff, and the sweeping plate 3 can rub the fluff on the filter 2 by moving back and forth, which is more conducive to the fluff passing through the filter 2 and falling into the lower cavity of the flocking box 1.

[0046] like Figures 2 to 4 As shown, a plurality of transverse fans 7 are arranged in the flocking box 1 and around the outer side of the conveying drag chain 4. Figure 2 , Figure 6 As shown, in this embodiment, four transverse fans 7 are arranged around the outer side of the conveying drag chain 4, and each transverse fan 7 blows air laterally toward the swab hanger 5 in the central part of the flocking box 1; the transverse fans 7 on all sides blow air on the four sides of the central swab hanger 5, so that the fluff is blown from all sides to the swab rod 20 on the swab hanger 5, which is more conducive to the fluff being evenly attached and distributed to various parts of the swab rod 20, making the flocking more uniform and the flocking effect better. A vertical fan 8 is arranged at the bottom center of the flocking box 1, facing the conveying drag chain 4, and the vertical fan 8 blows air vertically toward the swab hanger 5 in the central part of the flocking box 1; the vertical fan 8 at the bottom blows air toward the bottom of the swab rod 20 of the central swab hanger 5, which is conducive to the fluff being blown to the bottom surface of the end of the swab rod 20, making the fluff evenly attached and distributed to the bottom surface of the swab rod 20, making the flocking more uniform and the flocking effect better. Figure 1 As shown, a grille 15 is provided on the circumferential wall surface of the flocking box 1 corresponding to the transverse fan 7 for ventilation.

[0047] like Figure 2 As shown, a plurality of shafts 42 are evenly spaced and fixed on the conveying drag chain 4. Figure 2 , Figure 8 As shown, the lower end of the shaft 42 is rotatably connected to a rotating gear 43, and a semicircular hanging ring 44 extends vertically downward from the bottom surface of the rotating gear 43. Figure 3 , Figure 4 , Figure 6 , Fig. 9As shown, a fixing frame 6 is fixed at the center of the front inner wall of the flocking box 1, and the fixing frame 6 extends toward the conveying drag chain 4. A plurality of fixed gears 62 are fixedly arranged at intervals on the frame rod 61 on the inner side of the fixing frame 6 which is parallel to the conveying drag chain 4. The height position of the fixed gear 62 matches the height position of the rotating gear 43. When the rotating gear 43 follows the conveying drag chain 4 to the position of the fixed gear 62, the rotating gear 43 meshes with the fixed gear 62, and the rotating gear 43 rotates around the shaft 42.

[0048] like Figure 7 , Figure 8 As shown, a hook 51 is vertically extended upward from the center of the top surface of the swab hanger 5, and the swab hanger 5 can be hung on the hanging ring 44 of the rotating gear 43 through the hook 51, which is simple and convenient to operate. A number of hanging plates 52 are evenly spaced on the swab hanger 5, and the two ends of the hanging plates 52 are respectively fixed to the bottom surface of the swab hanger 5 through the fixing grooves 53; a number of swab rods 20 can be hung on each hanging plate 52. When blowing the flock, the swab hanger 5 can rotate with the rotating gear 43, so that all surfaces of the swab rod 20 are blown by the transverse fan 7, so that the fluff falls on and adheres to the surface of the swab rod 20 more evenly, and the flocking effect is better.

[0049] The present invention is applicable to swab rods 20 of various shapes, lengths, and breaking points, such as Figure 10a-10f The six different shapes of swab rods 20 shown can all be flocked using the present invention. Figure 10a-Figure 10e For nasal swabs, Fig.10f For throat swab.

[0050] The specific process of blowing and flocking the swab rod 20 by using the present invention mainly includes the following steps:

[0051] I. First, hang and fix a number of swab rods 20 that need to be flocked on the swab hanger 5;

[0052] II. Plasma treatment is performed on the lower end of the swab rod 20 on the swab rack 5;

[0053] III. After the plasma treatment, the lower end of the swab rod 20 on the swab rack 5 is subjected to gluing and spinning treatments in sequence;

[0054] IV. After the glue throwing process is completed, the swab rack 5 is hung on the hanging ring 44 on the bottom surface of the rotating gear 43 of the conveying drag chain 4;

[0055] V. Start the first motor 9, the first motor 9 drives the conveying drag chain 4 to move, and the conveying drag chain 4 conveys the swab hanger 5 forward toward the flocking box 1;

[0056] VI. The fluff is poured onto the filter 2, and the sweeping plate 3 moves back and forth to rub the fluff. After being filtered by the filter 2, the fluff falls into the lower cavity of the flocking box 1 under the action of gravity;

[0057] VII. The horizontal fan 7 and the vertical fan 8 in the flocking box 1 blow up the fluff, and the fluff evenly falls on and adheres to the lower end of the swab rod 20;

[0058] VIII. After the swab rod 20 is blown, it is sent out along with the swab rack 5 by the conveyor drag chain 4;

[0059] IX, drying the swab rod 20 after the blowing is completed;

[0060] X. After drying is completed, the swab rod 20 is removed from the swab hanger 5 to complete the flocking process.

[0061] like Fig.11a FIG. 2 is a cross-sectional view of the swab rod 20 under an electron microscope after the swab rod 20 is flocked by the present invention. It can be seen from the figure that the villi are evenly attached to the surface of the swab rod 20, and the flocking effect is good, which can meet the performance requirements of the swab; Fig.11b By comparing the cross-sectional view of the electrostatically flocked swab rod 20 under an electron microscope, it can be seen that the adhesion force and adhesion uniformity of the swab produced by the present invention are not much different from those of the electrostatic flocking.

[0062] The flocking effect of the swab rod 20 before flocking will be different if it is plasma treated or not: (1) Figures 12a to 12g The electron microscope magnified images of various parts of the nasal swab after plasma treatment are shown. Figures 13a to 13g The magnified electron microscope image of the corresponding part of the nasal swab that was not treated with plasma is shown; (2) Figures 14a to 14e The electron microscope magnified images of various parts of the pharyngeal swab after plasma treatment are shown. Figures 15a to 15e The magnified image of the corresponding part of the pharyngeal swab without plasma treatment under electron microscope is shown. From the comparison picture, it can be seen that after flocking, the swab without plasma treatment has fewer villi and poor adhesion, while the swab after plasma treatment has uniform villi coverage and better adhesion.

[0063] The flocking effect of the swab rod 20 will be different if it is subjected to the glue throwing treatment or not before the flocking: (1) Figure 16a1 to Figure 16a4 This is an enlarged view of the various parts of the nasal swab after the glue-spinning treatment under an electron microscope. Figure 16b1 to Figure 16b3 This is a cross-sectional view of a nasal swab after the glue-spinning treatment under an electron microscope; (2) Figure 17a1 to Figure 17a4 This is an enlarged image of the corresponding part of the nasal swab that has not been treated with glue under an electron microscope. Figure 17b1 to Figure 17b3The cross-sectional view of the corresponding part of the nasal swab without the glue throwing treatment under the electron microscope. From the comparison picture, it can be seen that after the flocking of the swab without the glue throwing treatment, the villi are less and the adhesion is poor, while after the flocking of the swab with the glue throwing treatment, the villi are evenly covered and the adhesion is better.

[0064] The density of the flocks used for flocking in the present invention is between 3.8-6.0Dtex, and the length is between 0.4-0.6mm, preferably the density of the flocks is 4.2Dtex, and the length is 0.5mm. The following is a comparison of the test results of the swabs after flocking with two different flock densities:

[0065] (1) First prepare the test materials:

[0066] A. Two types of swabs: ① test swab (4.2Dtex*0.5mm), ② control production swab (3.33Dtex*0.8mm); B. Two types of preservation solutions: ① ITM inactivated preservation solution, ② VTM non-inactivated preservation solution; C. Armored RNA (ribonucleic acid) (10^6 copies / ml) dilution solution.

[0067] (2) The specific experimental steps are as follows:

[0068] S1. Sample processing:

[0069] S11, experimental group treatment: 50 μL of armored RNA dilution solution was added to the two swab heads, and after standing for 5 seconds, it was transferred to 1 mL of ITM inactivated preservation solution and VTM non-inactivated preservation solution respectively. After vortex mixing, 200 μL of preservation solution was taken for nucleic acid extraction;

[0070] S12, control group treatment: 50 μL of armored RNA dilution solution was directly added to 1 mL of ITM inactivated preservation solution and VTM non-inactivated preservation solution, vortexed to mix, and then 200 μL of preservation solution was taken for nucleic acid extraction.

[0071] S2. Sample extraction: AU17012 magnetic bead virus DNA / RNA extraction kit is used for sample extraction:

[0072] S21, pre-add reagents, add the following reagents into a 96-well deep-well plate:

[0073] Serial number Reagent name Deep well plate number Reagent volume 1 Virus Lysis Buffer VL2 1 400μL 2 Virus Magnetic Beads BB 2 600μL 3 Virus Magnetic Beads 2 10μL 4 Buffer A 3 500μL 5 Rinse liquid WB 4 700μL 6 Elution buffer 6 50μL

[0074] S22. Add sample: 200uL preservation solution sample.

[0075] S23, the procedure for setting the nucleic acid extraction instrument is as follows:

[0076] AU17012

[0077] step Hole Position Waiting time Mixing time Mixing speed Temperature Time temperature Magnetic attraction time(s) Magnetic suction speed Volume 1 2 0 0 Four 0 0 30 Slow 600 2 1 0 40 Four 0 0 30 Slow 600 3 3 0 20 Four 0 0 30 Slow 450 4 4 0 20 Four 0 0 30 Slow 700 5 6 0 40 three 0 0 30 Slow 200 6 2 0 5 three 0 0 0 Slow 500

[0078] S24. After the program is finished, 5ul of nucleic acid in wells 6 / 12 is taken for QPCR (real-time fluorescence quantitative polymerase chain reaction) amplification.

[0079] S3. Sample monitoring, using QPCR real-time fluorescence quantitative analysis:

[0080] Configure the Baorui qRT-PCR amplification system:

[0081] Reagents Usage 5x Neoscript Fast RT Buffer 5ul 25x Neoscript Fast RTase / UNG mix 1ul Primer 1 0.5ul Primer 2 0.5ul TaqMan Probe 0.5ul ddH20 12.5ul Template RNA 5ul Total 25μl

[0082] Analytical Procedure:

[0083]

[0084] (3) Experimental results:

[0085]

[0086] (4) Conclusion analysis:

[0087] The difference in Ct values ​​of the two swabs: ITM Ct average difference = 30.57-30.25 = 0.32; VTM Ct average difference = 30.71-30.52 = 0.19.

[0088] The difference of Ct value with the control group:

[0089] Control swabs: ITM Ct mean difference = 30.57-29.92 = 0.65, VTM Ct mean difference = 30.71-30.15 = 0.56; test swabs: ITM Ct mean difference = 30.25-29.92 = 0.33, VTM Ct mean difference = 30.52-30.15 = 0.37.

[0090] Evaluation effect: The 2^△CT method is generally used to calculate the relative expression level of the target gene after fluorescent quantitative PCR.

[0091] Comparison of the release effects of the two swabs: ITM Ct average difference = 0.33, the release effect of the test swab is 2^0.33 = 1.25 times that of the control swab; VTM Ct average difference = 0.19, the release effect of the test swab is 2^0.19 = 1.14 times that of the control swab.

[0092] Release efficiency of the two swabs:

[0093] The release efficiency of the control swab in ITM was 2^(-0.65)=63.73%, and the release efficiency in VTM was 2^(-0.56)=67.83%;

[0094] The release efficiency of the test swab in ITM was 2^(-0.33)=79.55%, and the release efficiency in VTM was 2^(-0.37)=77.38%.

[0095] From the above test results, it can be seen that the flocking effect of the test swab is good and can meet the performance requirements.

[0096] The present invention adopts a blowing method to flock the swab rod 20, and the fluff is evenly attached to the surface of the swab rod 20, with a good flocking effect. The flocking process only needs to be provided by a fan. Compared with the electrostatic flocking method, it greatly reduces the demand for electric energy, reduces power consumption, reduces energy consumption, and avoids the electrostatic effect during the flocking process, thereby ensuring the flocking effect and the quality of the swab.

[0097] The above description is an explanation of the present invention, not a limitation of the present invention. The present invention may be modified in any form without violating the spirit of the present invention.

Claims

1. A swab flocking device, characterized in that: A conveyor chain (4) is disposed across the flocking box (1), a plurality of swab hangers (5) are arranged at intervals on the conveyor chain (4), and the conveyor chain (4) is connected to a first motor (9); a plurality of fans are disposed inside the flocking box (1) and outside the conveyor chain (4); during flocking, a swab rod (20) is suspended on the swab hanger (5) and is conveyed forward by the conveyor chain (4), and the plurality of fans blow the fluff falling into the cavity of the flocking box (1) onto the end of the swab rod (20); A filter (2) is arranged inside the flocking box (1) and above the conveying drag chain (4), and a movable sweeping plate (3) is arranged on the upper side of the filter (2); a slider (13) is fixedly arranged on the outer wall surface of the sweeping plate (3), and a slide rail (12) is correspondingly arranged on the inner wall surface of the flocking box (1), and the slider (13) is slidably arranged on the slide rail (12).

2. The swab flocking device according to claim 1, characterized in that: The fans include transverse fans (7) arranged around the conveyor drag chain (4); each transverse fan (7) blows air transversely toward the swab hanger (5) at the center of the flocking box (1).

3. The swab flocking device according to claim 1, characterized in that: The fan comprises a vertical fan (8) arranged at the center of the bottom of the flocking box (1) and facing the conveying drag chain (4), and the vertical fan (8) blows air vertically toward the swab hanger (5) at the center of the flocking box (1).

4. The swab flocking device according to claim 1, characterized in that: A plurality of shafts (42) are evenly spaced and fixed on the transmission drag chain (4), and a rotating gear (43) is rotatably connected to the shaft (42); a fixed frame (6) is provided on the inner wall surface of the flocking box (1), and a plurality of fixed gears (62) are spaced and arranged on the frame rod (61) of the fixed frame (6), and the height position of the fixed gear (62) matches the height position of the rotating gear (43); when the rotating gear (43) follows the transmission drag chain (4) to the position of the fixed gear (62), it meshes with the fixed gear (62).

5. The swab flocking device according to claim 4, characterized in that: A hanging ring (44) is provided on the bottom surface of the rotating gear (43); a hook (51) is provided on the top surface of the swab hanger (5), and the swab hanger (5) is hung on the hanging ring (44) of the rotating gear (43) via the hook (51).

6. The swab flocking device according to claim 1, characterized in that: The sweeping plate (3) is connected to the second motor (10) via a belt (11).

7. The swab flocking device according to claim 1, characterized in that: A plurality of hanging plates (52) are evenly spaced apart on the swab hanger (5), and both ends of the hanging plates (52) are fixed to the bottom surface of the swab hanger (5) through fixing grooves (53) respectively; a plurality of swab rods (20) can be suspended on each hanging plate (52); and a grille (15) is provided on the circumferential wall surface of the flocking box (1) corresponding to the transverse fan (7).

8. A swab blowing flocking process, characterized in that: The swab flocking device according to any one of claims 1 to 7 is used for flocking, comprising the following steps: The swab rod (20) is hung on the swab hanger (5), and the swab hanger (5) is transported to the flocking box (1) by the transport drag chain (4); the fan in the flocking box (1) blows the fluff onto the end of the swab rod (20).

9. The swab blowing and flocking process according to claim 8, characterized in that: Before the swab rod (20) is transferred to the flocking box (1), the end of the swab rod (20) is first subjected to plasma treatment, gluing, and spinning treatments in sequence; after the flocking of the swab rod (20) is completed, the swab rod (20) is dried.

10. The swab blowing flocking process according to claim 8, characterized in that: The density of flocking is between 3.8-6.0Dtex and the length is between 0.4-0.6mm.

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