Textile detecting and removing mechanism

Abstract

The invention relates to the technical field of textile detection, and discloses a textile detecting and removing mechanism which comprises a rack discharging module. A material receiving module; the detecting and rejecting assembly is used for rejecting foreign matters on the textile fabric; the detecting and rejecting assembly comprises a triggering piece, a moving piece and a marking piece; and the triggering piece is used for detecting some hard attached foreign matters on the textile fabric. According to the detecting and removing mechanism for the textiles, by arranging the detecting and removing assembly and utilizing the characteristic of attachment of hard objects, when the textiles penetrate through a detecting rod, the detecting rod can be driven to move upwards, through the implementation of the lever principle, a moving part can be controlled to move transversely through the action, and then transverse cleaning and removing of the hard objects are achieved; and after removal, the moving part is broken, and normal conveying and production of the textile fabric are ensured, so that overall automatic hard object detection and automatic hard object treatment are realized, the forming quality of textiles is effectively improved, and potential safety hazards of users are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of textile detection, and specifically to a textile detection and rejection mechanism. Background Art

[0002] Textiles include multiple types, such as textile-formed products and fabrics after textile forming. After these finished products are produced, their surfaces will be inspected to check whether there are hard foreign objects attached, such as some metal particles and agglomerated hard objects, so as to determine whether there are metal wires or other metal impurities adhered to them. In particular, metal hard object detection must be carried out to prevent unnecessary harm to the human body. Generally, a visual inspection is first carried out before textile packaging. This method is time-consuming and laborious, and the misdetection rate is relatively high. Therefore, foreign object detection equipment needs to be used to detect textiles. Currently, the foreign object detection equipment basically only sets one detection level, that is, only detects the textiles once. Affected by the detection coverage area and sensitivity of the detection probe, it is easy to miss detections, unable to ensure the quality and use safety of textiles. Moreover, the traditional detection method can only perform visual or optoelectronic detection on foreign objects and cannot remove the foreign objects, resulting in the need for manual processing later, which is time-consuming and laborious. Therefore, a textile detection and rejection mechanism is proposed to solve the above-mentioned problems. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the present invention provides a textile detection and rejection mechanism, which solves the problem that when detecting textile fabrics in the prior art, it is impossible to effectively detect and remove foreign objects, resulting in the need for manual cleaning later.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solutions: A textile detection and rejection mechanism includes a frame feeding module; a receiving module; a detection and rejection component for removing foreign objects from textile fabrics; the detection and rejection component includes a trigger member, a moving member, and a marking member; the trigger member is used to detect some hard foreign objects attached to the textile fabric; the moving member is used to clean the hard attachments on the textile fabric; the marking member is used to color-mark the hard object area on the textile fabric; after the trigger member detects that there are hard attachments on the placed fabric, it will trigger the synchronous operation of the moving member and the marking member, removing the hard attachments while also marking the area where the hard object exists.

[0007] Preferably, the triggering member includes a lever frame. The middle of the lever frame is rotatably connected to a bracket through a central rod. The bracket is installed on the frame. Both sides of the lever frame are fixedly connected with connecting plates. A diamond frame is slidably connected to the connecting plates. The bottom of the diamond frame is connected with a detection rod, and the detection rod abuts against the textile fabric.

[0008] Preferably, the moving member includes a reciprocating lead screw. One end of the reciprocating lead screw is connected with a rotating gear. A moving gear is arranged at the lower left of the rotating gear. A pull plate is rotatably connected to the moving gear. The pull plate is rotatably connected to the lever frame through a connecting rod. A mating gear is arranged above the moving gear. One side of the mating gear is installed with a motor through a connecting member. A sliding sleeve is slidably connected to the surface of the reciprocating lead screw. The bottom of the sliding sleeve is connected with a rejection frame.

[0009] Preferably, it further includes a flapping assembly. The flapping assembly includes a first gear. The other side of the mating gear is fixedly connected with the first gear through a shaft rod. A second gear is meshed with the first gear. A worm shaft is connected to the second gear. A worm wheel is meshed with the worm shaft. A camshaft is fixedly connected to the worm wheel. A cam is installed on the camshaft. The surface of the cam abuts against an elastic frame. A compression spring is connected to the surface of the elastic frame. The top of the compression spring is connected with the frame.

[0010] Preferably, a plurality of cams and elastic frames are provided. The plurality of cams and elastic frames are linearly arrayed in part with the center line of the camshaft as the axis of symmetry. The bottom of the elastic frame abuts against the surface of the textile fabric. The plurality of elastic frames are connected in series through a linkage rod.

[0011] Preferably, two reciprocating lead screws, sliding sleeves and rotating gears are provided. The two rotating gears are meshed with each other. A plurality of pressure springs are installed on the lever frame. The top of the pressure springs is connected with the frame.

[0012] Preferably, a chute is formed in the sliding sleeve. The detection rod is slidably connected in the chute. A pin rod is arranged inside the sliding sleeve. The pin rod is slidably connected in the spiral groove on the surface of the reciprocating lead screw. Cuts are arranged on the left and right sides of the rejection frame.

[0013] Preferably, a control key is installed on the lever frame. The control key is used to control the opening and closing of the feeding module and the receiving module.

[0014] Preferably, the marking member includes a bracket, the frame is connected to the bracket, a guide rod is connected to the bracket through a connecting member, a pressing plate is slidably connected to the guide rod, the upper surface of the pressing plate abuts against the lower right of the lever frame, a support frame is connected to the pressing plate, two marking frames are connected to the support frame through a connecting rod, a sponge strip is arranged in the marking frame, ink is arranged on the surface of the sponge strip, a compression spring is sleeved on the guide rod, and the bottom of the compression spring is connected to the pressing plate.

[0015] (III) Advantageous Effects

[0016] Compared with the prior art, the present invention provides a textile detection and rejection mechanism, which has the following advantageous effects:

[0017] 1. For the textile detection and rejection mechanism, through the provided detection and rejection component, by utilizing the characteristic of hard object adhesion, when the textile passes through the detection rod, it will drive the detection rod to move upward. Through the realization of the lever principle, this movement will control the lateral movement of the moving part, thereby realizing the lateral cleaning and rejection of hard objects. After the cleaning, the moving part will be disconnected to ensure the normal conveying and production of the textile fabric, thus realizing the overall automatic hard object detection and automatic hard object treatment, effectively improving the forming quality of the textile, reducing the safety hazards for users, and improving the detection efficiency and detection accuracy of the overall textile fabric.

[0018] 2. For the textile detection and rejection mechanism, through the provided marking member, it can mark the range where foreign objects are generated, so as to directly check whether the position is completely rejected during the subsequent re-inspection, further improving the forming and production quality of the textile in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a textile detection and rejection mechanism proposed by the present invention;

[0020] Figure 2 It is a schematic diagram of the connection structure between the trigger part and the moving part of a textile detection and rejection mechanism proposed by the present invention;

[0021] Figure 3 It is a schematic diagram of the trigger part structure of a textile detection and rejection mechanism proposed by the present invention;

[0022] Figure 4 It is a schematic diagram of the connection structure between the rejection frame and the sliding sleeve of a textile detection and rejection mechanism proposed by the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the flapping component of a textile detection and rejection mechanism proposed by the present invention;

[0024] Figure 6 Schematic diagram of the cam connection position structure for a textile detection and rejection mechanism proposed by the present invention;

[0025] Figure 7 Schematic diagram of the marking component structure for a textile detection and rejection mechanism proposed by the present invention.

[0026] In the figure: 1. Feeding module; 2. Receiving module; 3. Detection and rejection component; 301. Lever frame; 302. Connecting plate; 303. Diamond frame; 304. Detection rod; 305. Reciprocating lead screw; 306. Sliding sleeve; 307. Rejection frame; 308. Central rod; 309. Pulling plate; 310. Rotating gear; 311. Moving gear; 312. Matching gear; 313. First gear; 314. Worm shaft; 315. Second gear; 316. Worm gear; 317. Elasticity frame; 318. Compression spring; 319. Cam; 320. Linking rod; 321. Camshaft; 322. Pressing plate; 323. Shrinkage spring; 324. Support frame; 325. Marking frame; 326. Guide rod; 4. Support; 5. Machine frame; 6. Control key; 7. Pressure spring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 7 , a textile detection and rejection mechanism, including a machine frame 5, a feeding module 1; a receiving module 2; a detection and rejection component 3 for removing foreign objects from textile fabrics; the detection and rejection component 3 includes a trigger, a moving part, and a marking part; the trigger is used to detect some hard attached foreign objects on the textile fabric; the moving part is used to clean the hard attachments on the textile fabric; the marking part is used to color and mark the hard object area on the textile fabric; after the trigger detects that there are hard attachments on the placed fabric, it will trigger the synchronous operation of the moving part and the marking part, removing the hard attachments and marking the area where the hard object exists at the same time.

[0029] In this embodiment, the triggering member includes a lever frame 301. The middle of the lever frame 301 is rotatably connected to a bracket 4 through a central rod 308. The bracket 4 is installed on the machine frame 5. Both sides of the lever frame 301 are fixedly connected with connecting plates 302. A diamond frame 303 is slidably connected to the connecting plates 302. The bottom of the diamond frame 303 is connected with a detection rod 304. The detection rod 304 abuts against the textile fabric. When there are metal blocks, relatively hard attachments, wooden blocks, or soil blocks on the textile fabric, at this time, the hard object will enter the surface of the detection rod 304 while being transmitted along with the textile fabric, forming an abutment, and directly using the hard object to push up, driving the upward movement of the detection rod 304. The upward movement of the detection rod 304 will drive the upward movement of the diamond frame 303, and then drive the upward movement of the lever frame 301 through the connecting plates 302. Therefore, the overall use of the abutting force generated by the hard contact of the object realizes the detection of hard objects. And after detecting foreign objects, the shutdown actions of the feeding module 1 and the receiving module 2 will be synchronously controlled, providing shutdown time for the subsequent removal process.

[0030] Furthermore, the moving member includes a reciprocating lead screw 305. One end of the reciprocating lead screw 305 is connected with a rotating gear 310. A moving gear 311 is arranged at the lower left of the rotating gear 310. A pull plate 309 is rotatably connected to the moving gear 311. The pull plate 309 is rotatably connected to the lever frame 301 through a connecting rod. A mating gear 312 is arranged above the moving gear 311. One side of the mating gear 312 is installed with a motor through a connecting piece. A sliding sleeve 306 is slidably connected to the surface of the reciprocating lead screw 305. The bottom of the sliding sleeve 306 is connected with a removal frame 307. The moving gear 311 and the rotating gear 310 are connected in series and meshed. Therefore, when the motor rotates and drives the rotation of the mating gear 312, it will drive the rotation of the two reciprocating lead screws 305 through the series connection of the moving gear 311. The rotation of the reciprocating lead screw 305 will drive the sliding sleeve 306 to move horizontally through the spiral groove on the surface, and then drive the removal frame 307 to slide and "remove" below the detection rod 304. The surface of the removal frame 307 is provided with a cut surface to remove some metal attachments or agglomerated protrusions. The removed hard objects will be abutted and pushed as the removal frame 307 moves, so as to cut and clean the hard objects from the surface of the textile material. Thus, the overall removal of the surface attachments of the textile fabric is realized, improving the quality of the product and the use safety of the product.

[0031] Furthermore, it also includes a flapping component. The flapping component includes a first gear 313. The other side of the mating gear 312 is fixedly connected to the first gear 313 through a shaft rod. A second gear 315 is meshed with the first gear 313. A worm shaft 314 is connected to the second gear 315. A worm wheel 316 is meshed with the worm shaft 314. A camshaft 321 is fixedly connected to the worm wheel 316. Cams 319 are installed on the camshaft 321. The surface of the cam 319 abuts against an elastic frame 317. An extrusion spring 318 is connected to the surface of the elastic frame 317. The top of the extrusion spring 318 is connected to the frame 5. A flapping component is also provided in the whole process. When the motor drives the rotation of the first gear 313, through the meshing of the sector gears, the rotation of the worm shaft 314 will be driven. Then, by using the transmission principle of the worm and worm wheel, the camshaft 321 will be driven to rotate. And the camshaft 321 will drive multiple cams 319 to abut and rotate. After the convex point position of the cam 319 disengages from the elastic frame 317, at this time, the extrusion spring 318 will instantly release the elastic potential energy, controlling the elastic frame 317 to flap on the surface of the textile fabric, realizing the flapping off of the attachments on the surface and ensuring the quality of the textile products.

[0032] In addition, multiple cams 319 and elastic frames 317 are provided, and the multiple cams and elastic frames 317 are linearly arrayed symmetrically about the central axis of the camshaft 321. And the bottom of the elastic frame 317 abuts against the surface of the textile fabric. The multiple elastic frames 317 are connected in series through a linkage rod 320. By providing the multiple cams 319 and elastic frames 317, a pressing action similar to the "piano key" type can be realized, thereby realizing continuous flapping and cleaning the attachments on the surface of the textile products.

[0033] In addition, two reciprocating lead screws 305, two sliding sleeves 306 and two rotating gears 310 are provided, and the two rotating gears 310 are meshed with each other. A plurality of pressure springs 7 are installed on the lever frame 301. The top of the pressure spring 7 is connected to the frame 5. By providing two reciprocating lead screws 305, the synchronous operation of the two rejection frames 307 is realized, achieving synchronous detection and rejection on the upper and lower sides.

[0034] It should be noted that a chute is provided inside the sliding sleeve 306, the detection rod 304 is slidably connected inside the chute, a pin rod is arranged inside the sliding sleeve 306, and the pin rod is slidably connected inside the spiral groove on the surface of the reciprocating lead screw 305. Cuts are provided on the left and right sides of the rejection frame 307. A control key 6 is installed on the lever frame 301, and the control key 6 is used to control the opening and closing of the feeding module 1 and the receiving module 2. When the lever frame 301 makes a lever movement, it swings around the center of the center rod 308. At this time, the control key 6 will contact the cover on the frame 5 and generate a pressing action. After that, the control key 6 will control the feeding module 1 and the receiving module 2 to stop, so as to avoid the situation that when the textile is conveyed, hard objects are attached and then follow the transmission, resulting in the failure of rejection.

[0035] It should be explained that the marking member includes a bracket 4, the frame 5 is connected to the bracket 4, a guide rod 326 is connected to the bracket 4 through a connecting member, a pressing plate 322 is slidably connected to the guide rod 326, the upper surface of the pressing plate 322 abuts against the lower right of the lever frame 301, a support frame 324 is connected to the pressing plate 322, two marking frames 325 are connected to the support frame 324 through connecting rods, a sponge strip is arranged inside the marking frame 325, ink is arranged on the surface of the sponge strip, a compression spring 323 is sleeved on the guide rod 326, and the bottom of the compression spring 323 is connected to the pressing plate 322. When the lever frame 301 touches a hard object, it will make a lever movement, the left side rises, the right side presses down, and then drives the pressing plate 322 that abuts against the right side of it to press down. When the pressing plate 322 presses and slides, it will press down through the support frame 324, and then drive the two marking frames 325 to press on the surface of the textile fabric, and the ink on the internal sponge strip will be printed on the surface of the fabric. When parallel marks are generated, and the hard object will be located between the two parallel marks. Therefore, after the subsequent foreign object rejection and cleaning, when the subsequent operator reviews, they can directly check according to the position of the ink to check whether the hard object is completely removed and whether there is any residue.

[0036] All the electrical components mentioned in this article are electrically connected to an external main controller and 220V mains power supply, and the main controller can be a conventional known device such as a computer that plays a control role.

[0037] Working principle: first, the woven fabric needs to be placed on the discharge module 1, and the end face is pulled to the receiving module 2, and the material is received by the rotation of the receiving module 2. When there are metal blocks or hard attachments, wood blocks, and soil blocks on the textile fabric, the hard objects will enter the surface of the detection rod 304 while being transferred with the textile fabric, forming abutment, and directly use the hard objects to lift and drive the detection rod 304 to move up, and the upward movement of the detection rod 304 will drive the diamond frame 303 to move up, and then drive the lever frame 301 to move up through the connecting plate 302, and control the lever frame 301 to do a lever movement, swinging with the center of the center rod 308 as the rotation center, and at this time the control key 6 will contact the cover on the frame 5, generating a pressing action, and then the control key 6 will control the discharge module 1 and the receiving module 2 to stop, and the stopping action at this time is convenient for cleaning the hard objects on the surface. When the lever frame 301 moves up, it will synchronously drive the pull plate 309 to move up, and the upward movement of the pull plate 309 will drive the moving gear 311 to move up, and then the matching gear 312, the moving gear 311 and the rotating gear 310 are meshed in series. Therefore, at this time, the rotation of the motor drives the rotation of the matching gear 312, and at the same time, the two reciprocating screws 305 are driven to rotate through the series connection of the moving gear 311. The rotation of the reciprocating screw 305 will drive the sliding sleeve 306 to move horizontally through the spiral groove on the surface, and then drive the rejection frame 307 to slide under the detection rod 304 to "shovel". The surface of the rejection frame 307 is provided with a cut surface to remove some metal attachments or agglomerated protrusions, and the removed hard objects will move along the rejection frame 307 moves to abut against and push, thereby cutting and cleaning the hard objects from the surface of the textile material. After the hard objects are removed, the surface of the detection rod 304 is not obstructed. At this time, it is pressed by multiple pressure springs 7, which will control the reset rotation of the lever frame 301 again, and then control the downward pressure of the detection rod 304 again. The hard objects will be affected by the special structure of the rejection frame 307. The reason is that the card is set in the middle position of the rejection frame 307. After moving horizontally to the extreme position on the left or right, it will be separated from the textile fabric horizontally and will fall. At this time, the hard objects will not be against the bottom of the detection rod 304. Therefore, the lever frame 301 is controlled by the elastic force of the pressure spring 7 to reset and move downward, and re-abut on the textile fabric. Therefore, the detection and removal of this time has been completed. If the next hard object is detected, the above process will be repeated to achieve the removal and cleaning after detection.The entire device is also provided with a marking part to mark the interval where each hard object is generated. Specifically, when the lever frame 301 contacts the hard object, the lever will move, the left side will rise, and the right side will be pressed down, thereby driving the pressure plate 322 abutting against the right side to press down, and when the pressure plate 322 is pressed down and slides, it will be pressed down through the support frame 324, thereby driving the two marking frames 325 to press on the surface of the textile fabric, and the ink on the internal sponge strip will be printed on the surface of the fabric. This type of ink is easy to clean, and specifically, soot ink can be used. This type of ink is relatively easy to clean, and when parallel marks are generated, the hard object will be located between the two parallel marks. Therefore, after the subsequent removal and cleaning of foreign objects, the operator can directly check according to the position of the ink during the subsequent review to check whether the hard object has been removed cleanly and whether there is any residue. The whole process is also provided with a beating component. When the motor is used to drive the rotation of the first gear 313, the meshing of the sector gears will drive the rotation of the worm shaft 314, and the transmission principle of the worm gear is used again to drive the camshaft 321 to rotate, and the camshaft 321 will drive multiple cams 319 to abut and rotate. After that, the convex point position of the cam 319 is separated from the elastic frame 317, and the extrusion spring 318 will instantly release the elastic potential energy, controlling the elastic frame 317 to beat on the surface of the textile fabric, so as to achieve the removal of the attachments on the surface and ensure the quality of the textile.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A textile detection and rejection mechanism, characterized in that, Including: Frame (5) Feeding module (1); Receiving module (2); Detection and rejection component (3) for removing foreign objects from textile fabrics; The detection and rejection component (3) includes a trigger, a moving part, and a marking part; The trigger is used to detect some hard attached foreign objects on the textile fabric; The moving part is used to clean the hard attachments on the textile fabric; The marking part is used to color-mark the area of hard objects on the textile fabric; After the trigger detects that there are hard attachments on the placed fabric, it will trigger the synchronous operation of the moving part and the marking part, removing the hard attachments and marking the area where the hard object exists at the same time.

2. The textile detection and rejection mechanism according to claim 1, characterized in that: The trigger includes a lever frame (301). The middle of the lever frame (301) is rotatably connected to a bracket (4) through a central rod (308). The bracket (4) is installed on the frame (5). Both sides of the lever frame (301) are fixedly connected with connecting plates (302). A rhombus frame (303) is slidably connected to the connecting plates (302). The bottom of the rhombus frame (303) is connected with a detection rod (304), and the detection rod (304) abuts against the textile fabric.

3. The textile detection and rejection mechanism according to claim 2, wherein: The moving part includes a reciprocating lead screw (305). One end of the reciprocating lead screw (305) is connected with a rotating gear (310). A moving gear (311) is arranged at the lower left of the rotating gear (310). A pull plate (309) is rotatably connected to the moving gear (311). The pull plate (309) is rotatably connected to the lever frame (301) through a connecting rod. A mating gear (312) is arranged above the moving gear (311). One side of the mating gear (312) is installed with a motor through a connecting piece. A sliding sleeve (306) is slidably connected to the surface of the reciprocating lead screw (305). The bottom of the sliding sleeve (306) is connected with a rejection frame (307).

4. The textile detection and rejection mechanism according to claim 3, characterized in that: It also includes a flapping component. The flapping component includes a first gear (313). The other side of the mating gear (312) is fixedly connected with the first gear (313) through a shaft rod. A second gear (315) is meshed with the first gear (313). A worm shaft (314) is connected to the second gear (315). A worm wheel (316) is meshed with the worm shaft (314). A camshaft (321) is fixedly connected to the worm wheel (316). A cam (319) is installed on the camshaft (321). The surface of the cam (319) abuts against an elastic frame (317). A compression spring (318) is connected to the surface of the elastic frame (317). The top of the compression spring (318) is connected to the frame (5).

5. The textile detection and rejection mechanism according to claim 4, characterized in that: A plurality of the cams (319) and elastic frames (317) are provided, and the plurality of cams and elastic frames (317) are linearly arrayed in part with the center line of the camshaft (321) as the axis of symmetry. The bottom of the elastic frame (317) abuts against the surface of the textile fabric. The plurality of elastic frames (317) are connected in series through a linkage rod (320).

6. The textile detection and rejection mechanism according to claim 3, wherein: The reciprocating lead screw (305), the sliding sleeve (306) and the rotating gear (310) are all provided with two, and the two rotating gears (310) are meshed with each other. A plurality of compression springs (7) are installed on the lever frame (301), and the top of the compression spring (7) is connected to the frame (5).

7. The textile detection and rejection mechanism according to claim 3, characterized in that: A chute is formed in the sliding sleeve (306), the detection rod (304) is slidably connected in the chute, a pin rod is arranged inside the sliding sleeve (306), and the pin rod is slidably connected in the spiral groove on the surface of the reciprocating lead screw (305). Cuts are provided on the left and right sides of the rejection frame (307).

8. The textile detection and rejection mechanism according to claim 3, characterized in that: A control key (6) is installed on the lever frame (301), and the control key (6) is used to control the opening and closing of the feeding module (1) and the receiving module (2).

9. The textile detection and rejection mechanism according to claim 1, wherein: The marking member includes a bracket (4), the frame (5) is connected to the bracket (4), a guide rod (326) is connected to the bracket (4) through a connecting member, a pressing plate (322) is slidably connected to the guide rod (326), and the upper surface of the pressing plate (322) abuts against the lower right of the lever frame (301). A support frame (324) is connected to the pressing plate (322), two marking frames (325) are connected to the support frame (324) through a connecting rod, a sponge strip is arranged in the marking frame (325), ink is arranged on the surface of the sponge strip, a compression spring (323) is sleeved on the guide rod (326), and the bottom of the compression spring (323) is connected to the pressing plate (322).

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