A carding device and carding method for needle-punched nonwoven fabric

Abstract

The present invention belongs to the technical field of non-woven fabric production, and discloses a combing device for needle-punched non-woven fabric and a combing method thereof, comprising a shell, the interior of the shell is a cavity structure, a control panel and a first protective shell are installed on the front end face of the shell, a second protective shell is installed on the rear end face of the shell, a first slide groove is symmetrically opened on the front and rear ends of the shell, a dust collection box is installed on the upper end face of the shell, an electrostatic generator is installed inside the first protective shell, a combing mechanism for combing is installed on the left side of the shell, a stretching mechanism for stretching is installed below the combing mechanism, and a cleaning mechanism for cleaning garbage is installed on the right side of the stretching mechanism. The present invention solves the problem that iron filings and short fibers cannot be classified and collected during the combing process of non-woven fabrics, causing air pollution and harm to operators.

Description

Technical Field

[0001] The invention relates to the technical field of nonwoven fabric production, in particular to a carding device and a carding method for needle-punched nonwoven fabric. Background Art

[0002] Non-woven fabrics are moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic, non-irritating, colorful, low-priced, and recyclable. For example, they are mostly made of polypropylene (PP material) pellets as raw materials, and are produced by a continuous one-step process of high-temperature melting, spinning, laying, and hot pressing and winding.

[0003] A combing device for non-woven fabric production with publication number CN112760760B comprises a combing frame, a pair of guide rollers are symmetrically arranged on the left and right sides of the inner cavity of the combing frame, a combing roller is arranged on the left side of the inner cavity of the combing frame, an intermediate roller is installed in the middle position of the inner cavity of the combing frame, and a pair of cross beams are arranged on the right side of the inner cavity of the combing frame. The beneficial effects are as follows: the present invention installs the combing saw teeth by rotation, utilizes the compression of the spring by the baffle plate, thereby buffering the rotating combing process to avoid penetrating damage to the non-woven fabric, and cooperates with the positioning of each rotating roller to improve the combing accuracy of the combing roller, and utilizes the cooperation of the wiping block and the suction head to recover the fibers adhering to the saw teeth after combing to prevent environmental pollution.

[0004] However, when cleaning the saw teeth, the device rubs the saw teeth against the wiping block, which can easily cause damage to the saw teeth, thereby affecting the combing effect. In addition, the device cannot clean and collect iron filings, short fibers, etc. in the non-woven fabric, which will cause environmental pollution and harm to operators. Summary of the invention

[0005] The purpose of the present invention is to provide a carding device and a carding method for needle-punched nonwoven fabrics, which solves the problem that iron filings and short fibers cannot be classified and collected during the carding process of nonwoven fabrics, causing air pollution and harm to operators.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combing device for needle-punched non-woven fabrics, comprising a shell, the interior of the shell is a cavity structure, a control panel and a first protective shell are installed on the front end surface of the shell, a second protective shell is installed on the rear end surface of the shell, first slide grooves are symmetrically opened on the front and rear end surfaces of the shell, a dust collection box is installed on the upper end surface of the shell, an electrostatic generator is installed inside the first protective shell, a combing mechanism for combing is installed on the left side of the shell, a stretching mechanism for stretching is installed below the combing mechanism, and a cleaning mechanism for cleaning garbage is installed on the right side of the stretching mechanism.

[0007] Preferably, the combing mechanism includes a first servo motor and a channel, the first servo motor is fixedly mounted on the inner wall of the first protective shell, the output shaft of the first servo motor is fixedly mounted with a first pulley, the first pulley is provided with a first belt on the outside, a combing roller is fixedly mounted on the side of the first pulley away from the first servo motor and passes through the shell, the combing roller, the outer wall of the combing roller is evenly provided with a plurality of grooves along its circumference, the inner walls of the plurality of grooves are rotatably provided with saw teeth, a torsion spring is installed at the connection between the saw teeth and the grooves, the upper end surface of the channel is fixedly mounted on the dust collection box, the two ends of the channel are fixedly mounted on the inner wall of the shell, a baffle is installed on the upper end surface of the channel facing the combing roller, a second dust suction port is opened on the lower end surface of the channel facing the combing roller, the first dust suction port is opened on the lower end surface of the baffle, and a plurality of through holes corresponding to the saw teeth are opened on the upper end surface of the baffle.

[0008] Preferably, the stretching mechanism includes a second pulley and a second gear, the second pulley passes through the shell and is fixedly installed with a first round rod, two eccentric circles are installed on the outer wall of the first round rod, cams are rotatably installed on the outer walls of the two eccentric circles, a support block is rotatably installed on one side of the cam protrusion, the support block is slidably installed on the first slide groove, a support plate is fixedly installed on the side of the support block away from the cam, and a plurality of protrusions are installed on the side of the support plate away from the support block, a third pulley is fixedly installed on the side of the second gear facing the shell, a first pressure roller is fixedly installed on the side of the third pulley away from the second gear, the first pressure roller is rotatably installed on the inner wall of the shell, the first gear is meshed with the lower side of the second gear, a second pressure roller is fixedly installed on one side of the first gear passing through the shell, and the second pressure roller is rotatably installed on the inner wall of the shell.

[0009] Preferably, the cleaning mechanism includes a conveying component, a magnetic separation component and a knocking component, the conveying component includes a second servo motor, the second servo motor is fixedly mounted on the inner wall of the second protective shell, the output shaft of the second servo motor is fixedly mounted with a sixth pulley, the outer side of the sixth pulley is provided with a second belt, the inner wall of the second belt is respectively provided with a fifth pulley and a fourth pulley, one side of the fifth pulley passes through the shell and is fixedly mounted with a positioning roller, the positioning roller is rotatably mounted on the inner wall of the shell, one side of the fourth pulley passes through the shell and is fixedly mounted with a conveying roller, the conveying roller is rotatably mounted on the inner wall of the shell.

[0010] Preferably, the magnetic separation component includes a plastic roller, the interior of the plastic roller is a cavity structure, and a plurality of fixed rods are symmetrically installed on the inner walls at both ends of the plastic roller, and a fifth round rod is fixedly installed on the side of the plurality of fixed rods away from the plastic roller, and the fifth round rod is rotatably installed on the inner wall of the outer shell, and a fourth round rod is sleeved inside the fifth round rod, and a magnet is fixedly installed on the side of the fourth round rod facing the second servo motor, and the two ends of the fourth round rod are respectively fixedly installed on the inner walls of the first protective shell and the second protective shell, and a third gear is fixedly installed on the side of the fifth round rod facing the second protective shell, and a fifth gear is meshed on one side of the third gear, and the fifth gear is fixedly installed on the sixth pulley on the side facing the second protective shell, and an electrostatic roller is fixedly installed on the side of the fifth gear away from the fifth gear through the outer shell, and the electrostatic roller is rotatably installed on the inner wall of the outer shell.

[0011] Preferably, the knocking assembly includes a fourth gear, one side of the fourth gear is meshed with the third gear, and a third round rod is fixedly installed on the side of the fourth gear away from the second protective shell, penetrating the shell, and a plurality of incomplete gears are installed on the outer wall of the third round rod, and a plurality of incomplete gears are meshed with racks on the upper ends of the incomplete gears, and a sliding rod is installed on the upper end surface of the rack, and a second sliding groove is opened on the outer wall of the sliding rod, and a second round rod is slidably installed in the second sliding groove, and the second round rod is fixedly installed on the inner wall of the shell, and a support rod is slidably installed on the side of the sliding rod away from the plastic roller, and the support rod is fixedly installed on the inner wall of the shell, and a spring is installed on the side of the support rod facing the plastic roller, and the spring is fixedly installed on the sliding rod away from the support rod.

[0012] Preferably, the fourth gear is twice the size of the third gear.

[0013] Preferably, the carding method of a needle-punched nonwoven fabric comprises the following steps:

[0014] Step 1: The non-woven fabric is delivered through the conveyor roller, and then combed by the combing mechanism. At the same time, the short fibers adhering to the saw teeth will be sucked away by the dust box to prevent affecting the combing effect of the saw teeth;

[0015] Step 2: The carded nonwoven fabric is positioned and transported by the positioning roller, and at the same time, the stretching mechanism stretches and shakes the nonwoven fabric;

[0016] Step 3: While the non-woven fabric is being stretched and shaken, the cleaning mechanism starts working. The electrostatic roller will adsorb the dust, iron filings and short fibers again, and then separate them through the magnetic separation component. The collected short fibers are reused, and the iron filings enter the trash box. The cleaned non-woven fabric is pressed by the first pressing roller and the second pressing roller to prevent the fibers from being too soft and falling off.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention sets a stretching mechanism, wherein the first pulley drives the second pulley to rotate through the first belt, the second pulley drives the first round rod to rotate, the first round rod drives the eccentric circle to rotate, the eccentric circle drives the cam to shake, the cam drives the support plate to slide in the first slide groove through the support block, the support plate drives the convex block to squeeze the non-woven fabric to stretch it and shake it, so that the dust, iron filings and short fibers inside are fluffy and leak out;

[0019] 2. The present invention sets a cleaning mechanism, wherein the electrostatic generator fills the electrostatic roller with static electricity, and the sixth pulley drives the electrostatic roller to rotate through the fifth gear, so as to adsorb short fibers, iron filings and dust from the non-woven fabric after stretching and shaking, thereby preventing them from entering the air and causing harm to the staff, and the electrostatic adsorption force is relatively small, so the long fibers in the non-woven fabric can be avoided from breaking. As the electrostatic roller rotates, the adsorbed short fibers will be sucked away into the dust collection box by the second dust suction port. Since the fifth gear and the third gear are meshed with each other, the third gear drives the fifth round rod to rotate in the opposite direction, and the fifth round rod drives the plastic roller to rotate through the fixed rod. Since a magnet is installed on the inner side of the plastic roller facing the electrostatic roller, the outer wall of the plastic roller It will absorb iron filings. When the iron filings rotate to the bottom with the plastic roller, there is no magnet to absorb them, and the iron filings will fall into the trash box, completing the separation of iron filings and short fibers. Since the fourth gear and the third gear are meshed with each other and are twice the size, the fourth gear rotates in the opposite direction slowly, and the fourth gear drives the third round rod to rotate, and the third round rod drives the incomplete gear to rotate. When the incomplete gear is meshed with the rack, the rack drives the slide bar to move away from the plastic roller, squeeze the spring, and slide on the support rod. As the third round rod rotates, when the incomplete gear and the rack are no longer meshed, the spring will extend and push the slide bar. At this time, the slide bar will knock on the plastic roller to prevent iron filings from remaining on the plastic roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram from another perspective;

[0022] Figure 3 This is a schematic diagram of the present invention without the first protective shell;

[0023] Figure 4 It is a cross-sectional view of the present invention;

[0024] Figure 5 It is a schematic diagram of the combing mechanism of the present invention;

[0025] Figure 6 for Figure 5 Sectional view;

[0026] Figure 7 It is a schematic diagram of the stretching mechanism of the present invention;

[0027] Figure 8 is a schematic diagram of a third pulley of the present invention;

[0028] Fig. 9 It is a schematic diagram of the cleaning mechanism of the present invention;

[0029] Fig.10 for Fig. 9 The enlarged schematic diagram of point A in the middle;

[0030] Fig.11 for Fig. 9 Schematic diagram from another perspective;

[0031] Fig.12 It is a cross-sectional view of the plastic roller of the present invention.

[0032] In the figure: 1, shell; 2, non-woven fabric; 3, control panel; 4, first protective shell; 5, second protective shell; 6, dust box; 7, first slide; 8, electrostatic generator; 100, combing mechanism; 200, stretching mechanism; 300, cleaning mechanism; 101, combing roller; 102, sawtooth; 103, through hole; 104, baffle; 105, channel; 106, first belt; 107, first pulley; 108, first servo motor; 109, groove; 110, torsion spring; 111, first dust suction port; 112, second dust suction port; 201, second pulley; 202, first round rod; 203, eccentric circle; 204, cam; 205, support block; 206, support plate; 207, bump; 208, first pressure roller; 2 09, second pressure roller; 210, first gear; 211, second gear; 212, third pulley; 301, support rod; 302, conveying roller; 303, fourth pulley; 304, second belt; 305, positioning roller; 306, fifth pulley; 307, second servo motor; 308, third gear; 309, fourth gear; 310, second round rod; 311, slide rod; 312, spring; 313, second slide groove; 314, rack; 315, third round rod; 316, incomplete gear; 317, fourth round rod; 318, fifth gear; 319, electrostatic roller; 320, trash box; 321, plastic roller; 322, magnet; 323, fifth round rod; 324, fixing rod; 325, sixth pulley. DETAILED DESCRIPTION

[0033] See also Figures 1 to 12The present invention provides a technical solution: a combing device for needle-punched nonwoven fabrics, comprising a shell 1, the interior of the shell 1 is a cavity structure, a control panel 3 and a first protective shell 4 are installed on the front end surface of the shell 1, a second protective shell 5 is installed on the rear end surface of the shell 1, a first slide 7 is symmetrically opened on the front and rear ends of the shell 1, a dust box 6 is installed on the upper end surface of the shell 1, an electrostatic generator 8 is installed inside the first protective shell 4, a combing mechanism 100 for combing is installed on the left side of the shell 1, a stretching mechanism 200 for stretching is installed below the combing mechanism 100, and a cleaning mechanism 300 for cleaning garbage is installed on the right side of the stretching mechanism 200;

[0034] The control panel 3 sets relevant parameters so that the electrostatic generator 8 generates static electricity and the dust collecting box 6 can collect short fibers;

[0035] Further, such as Figure 5 , Figure 6 As shown, the combing mechanism 100 includes a first servo motor 108 and a channel 105. The first servo motor 108 is fixedly mounted on the inner wall of the first protective shell 4. The output shaft of the first servo motor 108 is fixedly mounted with a first pulley 107. The first pulley 107 is sleeved with a first belt 106. The first pulley 107 is away from the first servo motor 108. The side of the first pulley 107 that penetrates the shell 1 and is fixedly mounted with a combing roller 101. The combing roller 101 has a plurality of grooves 109 evenly opened on its outer wall along its circumference. The plurality of grooves 109 are arranged on the outer wall of the combing roller 101. 09 inner wall is rotatably mounted with saw teeth 102, the connection between the saw teeth 102 and the groove 109 is mounted with a torsion spring 110, the upper end surface of the channel 105 is fixedly mounted on the dust box 6, the two ends of the channel 105 are fixedly mounted on the inner wall of the housing 1, the upper end surface of the channel 105 facing the combing roller 101 is mounted with a baffle 104, the lower end surface of the channel 105 facing the combing roller 101 is provided with a second dust suction port 112, the lower end surface of the baffle 104 is provided with a first dust suction port 111, and the upper end surface of the baffle 104 is provided with a plurality of through holes 103 corresponding to the saw teeth 102;

[0036] When the non-woven fabric passes under the combing roller 101, the first servo motor 108 drives the first pulley 107 to rotate, and the first pulley 107 drives the combing roller 101 to rotate, and the combing roller 101 drives the saw teeth 102 on the outer wall to comb the non-woven fabric, and the short fibers will remain on the saw teeth 102. Since a torsion spring 110 is installed at the connection between the saw teeth 102 and the combing roller 101, the non-woven fabric will be protected to the greatest extent to prevent puncture. When the saw teeth 102 rotate and are flush with the baffle 104, the short fibers on the saw teeth 102 will be scraped off by the through hole 103. Since the through hole 103 is not in direct contact with the saw teeth 102, the saw teeth 102 will not be worn, and the scraped short fibers will enter the interior of the dust box 6 through the first dust suction port 111 and the channel 105;

[0037] Further, such as Figure 7 , Figure 8 As shown, the stretching mechanism 200 includes a second pulley 201 and a second gear 211, the second pulley 201 passes through the housing 1 and is fixedly installed with a first round rod 202, the outer wall of the first round rod 202 is installed with two eccentric circles 203, the outer walls of the two eccentric circles 203 are rotatably installed with a cam 204, a support block 205 is rotatably installed on one side of the cam 204, the support block 205 is slidably installed on the first slide groove 7, and a support plate 206 is fixedly installed on the side of the support block 205 away from the cam 204, and the support plate 206 is far away from the cam A plurality of protrusions 207 are installed on the side away from the support block 205, a third pulley 212 is fixedly installed on the side of the second gear 211 facing the shell 1, a first pressure roller 208 is fixedly installed on the side of the third pulley 212 away from the second gear 211, and the first pressure roller 208 is rotatably installed on the inner wall of the shell 1, a first gear 210 is meshed on the lower side of the second gear 211, a second pressure roller 209 is fixedly installed on the side of the first gear 210, and the second pressure roller 209 is rotatably installed on the inner wall of the shell 1;

[0038] The first pulley 107 drives the second pulley 201 to rotate through the first belt 106, the second pulley 201 drives the first round rod 202 to rotate, the first round rod 202 drives the eccentric circle 203 to rotate, the eccentric circle 203 drives the cam 204 to shake, the cam 204 drives the support plate 206 to slide in the first slide groove 7 through the support block 205, the support plate 206 drives the protrusion 207 to squeeze the non-woven fabric to stretch it and shake it, so that the dust, iron filings and short fibers inside are fluffy and leak out;

[0039] The first pulley 107 drives the third pulley 212 to rotate through the first belt 106, and the third pulley 212 drives the second gear 211 and the first pressing roller 208 to rotate. Since the first gear 210 and the second gear 211 are meshed with each other, the second gear 211 rotates in the opposite direction, and the second gear 211 drives the second pressing roller 209 to rotate, and the non-woven fabric will be squeezed and transported to prevent the non-woven fabric from being too soft and the fibers from falling off.

[0040] Further, such as Fig. 9As shown, the conveying assembly includes a second servo motor 307, which is fixedly mounted on the inner wall of the second protective shell 5, and the output shaft of the second servo motor 307 is fixedly mounted with a sixth pulley 325, and the outer side of the sixth pulley 325 is sleeved with a second belt 304, and the inner wall of the second belt 304 is sleeved with a fifth pulley 306 and a fourth pulley 303 respectively, and one side of the fifth pulley 306 passes through the shell 1 and is fixedly mounted with a positioning roller 305, and the positioning roller 305 is rotatably mounted on the inner wall of the shell 1, and one side of the fourth pulley 303 passes through the shell 1 and is fixedly mounted with a conveying roller 302, and the conveying roller 302 is rotatably mounted on the inner wall of the shell 1;

[0041] The second servo motor 307 drives the sixth pulley 325 to rotate, the sixth pulley 325 drives the fifth pulley 306 and the fourth pulley 303 to rotate through the second belt 304, the fourth pulley 303 drives the conveying roller 302 to rotate, the conveying roller 302 drives the non-woven fabric to move, after passing under the combing roller 101, the positioning roller 305 is driven by the fifth belt 306, and the non-woven fabric moves downward;

[0042] Further, such as Fig. 9 , Fig.11 , Fig.12 As shown, the magnetic separation component includes a plastic roller 321, the interior of the plastic roller 321 is a cavity structure, and a plurality of fixed rods 324 are symmetrically installed on the inner walls of both ends of the plastic roller 321. A fifth round rod 323 is fixedly installed on the side of the plurality of fixed rods 324 away from the plastic roller 321. The fifth round rod 323 is rotatably installed on the inner wall of the housing 1. A fourth round rod 317 is sleeved inside the fifth round rod 323. A magnet 322 is fixedly installed on the side of the fourth round rod 317 facing the second servo motor 307. Both ends of the fourth round rod 317 They are respectively fixedly mounted on the inner walls of the first protective shell 4 and the second protective shell 5, the fifth round rod 323 passes through the shell 1 toward the second protective shell 5 and is fixedly mounted with a third gear 308, one side of the third gear 308 is meshed with a fifth gear 318, the fifth gear 318 is fixedly mounted on the sixth pulley 325 toward the second protective shell 5, the side of the fifth gear 318 away from the fifth gear 318 passes through the shell 1 and is fixedly mounted with an electrostatic roller 319, and the electrostatic roller 319 is rotatably mounted on the inner wall of the shell 1;

[0043] When the electrostatic generator 8 is on, the electrostatic roller 319 is filled with static electricity. The sixth pulley 325 drives the electrostatic roller 319 to rotate through the fifth gear 318, and the short fibers, iron filings and dust of the non-woven fabric after stretching and shaking are adsorbed to prevent the air from entering and causing harm to the staff, and the long fibers in the non-woven fabric can be prevented from breaking. As the electrostatic roller 319 rotates, the adsorbed short fibers will be sucked into the dust box 6 by the second dust suction port 112. Since the fifth gear 318 and the third gear 308 are meshed with each other, the third gear 308 drives the fifth round rod 323 to rotate in the opposite direction, and the fifth round rod 323 drives the plastic roller 321 to rotate through the fixed rod 324. Since the inside of the plastic roller 321 is equipped with a magnet 322 facing the electrostatic roller 319, the outer wall of the plastic roller 321 will adsorb iron filings. When the iron filings rotate to the bottom with the plastic roller 321, there is no magnet 322 to adsorb them at this time, and the iron filings will fall into the garbage box 320, completing the separation of iron filings and short fibers.

[0044] Further, such as Fig. 9 , Fig.10 , Fig.11 As shown, the knocking assembly includes a fourth gear 309, one side of the fourth gear 309 is meshed with the third gear 308, and the fourth gear 309 is away from the second protective shell 5. The side of the second protective shell 5 penetrates the shell 1 and is fixedly installed with a third round rod 315, and a plurality of incomplete gears 316 are installed on the outer wall of the third round rod 315. The upper ends of the plurality of incomplete gears 316 are meshed with racks 314, and the upper end surface of the rack 314 is installed with a slide bar 311, and the outer wall of the slide bar 311 is provided with a second slide groove 313. A second round rod 310 is slidably mounted inside the second slide groove 313, and the second round rod 310 is fixedly mounted on the inner wall of the housing 1. A support rod 301 is slidably mounted on the side of the slide rod 311 away from the plastic roller 321, and the support rod 301 is fixedly mounted on the inner wall of the housing 1. A spring 312 is mounted on the side of the support rod 301 facing the plastic roller 321, and the spring 312 is fixedly mounted on the slide rod 311 away from the support rod 301. The fourth gear 309 is twice the size of the third gear 308;

[0045] When the third gear 308 rotates, since the fourth gear 309 meshes with the third gear 308 and is twice the size of the third gear 308, the fourth gear 309 rotates in the reverse direction at a slow speed, and the fourth gear 309 drives the third round rod 315 to rotate, and the third round rod 315 drives the incomplete gear 316 to rotate. When the incomplete gear 316 meshes with the rack 314, the rack 314 drives the slide bar 311 to move away from the plastic roller 321 and squeeze the spring 312 to slide on the support rod 301. As the third round rod 315 rotates, when the incomplete gear 316 and the rack 314 are no longer meshed, the spring 312 will extend and push the slide bar 311. At this time, the slide bar 311 will knock the plastic roller 321 to prevent iron filings from being left on the plastic roller 321.

[0046] In this embodiment, a carding method for needle-punched nonwoven fabrics comprises the following steps:

[0047] Step 1: After the external power supply and dust collector are connected and the relevant parameters are set through the control panel 3, the first servo motor 108 and the second servo motor 307 rotate, the electrostatic generator 8 works, the second servo motor 307 drives the sixth pulley 325 to rotate, the sixth pulley 325 drives the fifth pulley 306 and the fourth pulley 303 to rotate through the second belt 304, the fourth pulley 303 drives the conveying roller 302 to rotate, the conveying roller 302 drives the non-woven fabric to move, and when the non-woven fabric passes under the combing roller 101, the first servo motor 108 drives the first pulley 107 to rotate, and the first pulley 107 drives The combing roller 101 rotates, and the combing roller 101 drives the saw teeth 102 on the outer wall to comb the non-woven fabric, and the short fibers will remain on the saw teeth 102. Since the torsion spring 110 is installed at the connection between the saw teeth 102 and the combing roller 101, the non-woven fabric will be protected to the greatest extent to prevent puncture. When the saw teeth 102 rotate and are flush with the baffle 104, the short fibers on the saw teeth 102 will be scraped off by the through holes 103. Since the through holes 103 are not in direct contact with the saw teeth 102, the saw teeth 102 will not be worn. The scraped short fibers enter the interior of the dust box 6 through the first dust suction port 111 and the channel 105.

[0048] Step 2: The combed non-woven fabric passes through the positioning roller 305. At this time, the positioning roller 305 is driven by the fifth belt 306, and the non-woven fabric moves downward. At this time, the first pulley 107 drives the second pulley 201 to rotate through the first belt 106, and the second pulley 201 drives the first round rod 202 to rotate, and the first round rod 202 drives the eccentric circle 203 to rotate, and the eccentric circle 203 drives the cam 204 to shake, and the cam 204 drives the support plate 206 to slide in the first chute 7 through the support block 205, and the support plate 206 drives the protrusion 207 to squeeze the non-woven fabric to stretch it and shake it, so that the dust, iron filings and short fibers inside are fluffy and leak out;

[0049] Step 3: The electrostatic generator 8 makes the electrostatic roller 319 full of static electricity, and the sixth pulley 325 drives the electrostatic roller 319 to rotate through the fifth gear 318, so as to absorb short fibers, iron filings and dust from the non-woven fabric after stretching and shaking, so as to prevent the air from entering and causing harm to the staff, and to avoid the breakage of long fibers in the non-woven fabric. As the electrostatic roller 319 rotates, the absorbed short fibers will be sucked away by the second dust suction port 112 into the dust suction box 6. Since the fifth gear 318 is meshed with the third gear 308, the third gear 308 drives the fifth gear 318 to rotate. The round rod 323 rotates in the opposite direction, and the fifth round rod 323 drives the plastic roller 321 to rotate through the fixed rod 324. Since the inner side of the plastic roller 321 is provided with a magnet 322 facing the electrostatic roller 319, the outer wall of the plastic roller 321 will absorb the iron filings. When the iron filings rotate downward with the plastic roller 321, there is no magnet 322 to absorb them, and the iron filings will fall into the trash box 320, completing the separation of the iron filings and the short fibers. Since the fourth gear 309 is meshed with the third gear 308 and is twice the size of the third gear 308, the fourth gear 309 rotates in the opposite direction at a slow speed. The fourth gear 309 drives the third round rod 315 to rotate, and the third round rod 315 drives the incomplete gear 316 to rotate. When the incomplete gear 316 is meshed with the rack 314, the rack 314 drives the slide bar 311 to move away from the plastic roller 321 and squeeze the spring 312 to slide on the support rod 301. As the third round rod 315 rotates, when the incomplete gear 316 and the rack 314 are no longer meshed, the spring 312 will extend and push the slide bar 311. At this time, the slide bar 311 will knock on the plastic roller 321 to prevent Iron filings are left on the plastic roller 321, and then the non-woven fabric passes between the first pressing roller 208 and the second pressing roller 209. At this time, the first pulley 107 drives the third pulley 212 to rotate through the first belt 106, and the third pulley 212 drives the second gear 211 and the first pressing roller 208 to rotate. Since the first gear 210 and the second gear 211 are meshed with each other, the second gear 211 rotates in the opposite direction, and the second gear 211 drives the second pressing roller 209 to rotate. The non-woven fabric will be squeezed and transported to prevent the non-woven fabric from being too soft and the fibers from falling off.

Claims

1. A carding device for needle-punched nonwoven fabrics, comprising a housing, characterized in that: The interior of the shell is a cavity structure, a control panel and a first protective shell are installed on the front end surface of the shell, a second protective shell is installed on the rear end surface of the shell, a first slide groove is symmetrically opened on the front and rear ends of the shell, a dust collection box is installed on the upper end surface of the shell, an electrostatic generator is installed inside the first protective shell, a combing mechanism for combing is installed on the left side of the shell, a stretching mechanism for stretching is installed below the combing mechanism, and a cleaning mechanism for cleaning garbage is installed on the right side of the stretching mechanism; The stretching mechanism includes a second pulley and a second gear, the second pulley passes through the shell and is fixedly installed with a first round rod, two eccentric circles are installed on the outer wall of the first round rod, and cams are rotatably installed on the outer walls of the two eccentric circles, and a support block is rotatably installed on one side of the cam protrusion, and the support block is slidably installed on the first slide groove, and a support plate is fixedly installed on the side of the support block away from the cam, and a plurality of protrusions are installed on the side of the support plate away from the support block, and a third pulley is fixedly installed on the side of the second gear facing the shell, and a first pressure roller is fixedly installed on the side of the third pulley away from the second gear, and the first pressure roller is rotatably installed on the inner wall of the shell, and the first gear is meshed with the lower side of the second gear, and a second pressure roller is fixedly installed on one side of the first gear through the shell, and the second pressure roller is rotatably installed on the inner wall of the shell.

2. A carding device for needle-punched nonwoven fabric according to claim 1, characterized in that: The combing mechanism includes a first servo motor and a channel, the first servo motor is fixedly mounted on the inner wall of the first protective shell, the output shaft of the first servo motor is fixedly mounted with a first pulley, the first pulley is sleeved with a first belt on the outside, a combing roller is fixedly mounted on the side of the first pulley away from the first servo motor, a plurality of grooves are evenly arranged on the outer wall of the combing roller along its circumference, saw teeth are rotatably mounted on the inner walls of the plurality of grooves, a torsion spring is mounted at the connection between the saw teeth and the grooves, the upper end surface of the channel is fixedly mounted on the dust collection box, the two ends of the channel are fixedly mounted on the inner wall of the shell, a baffle is mounted on the upper end surface of the channel facing the combing roller, a second dust suction port is arranged on the lower end surface of the channel facing the combing roller, a first dust suction port is arranged on the lower end surface of the baffle, and a plurality of through holes corresponding to the saw teeth are arranged on the upper end surface of the baffle.

3. A carding device for needle-punched nonwoven fabric according to claim 2, characterized in that: The cleaning mechanism includes a conveying component, a magnetic separation component and a knocking component, the conveying component includes a second servo motor, the second servo motor is fixedly installed on the inner wall of the second protective shell, the output shaft of the second servo motor is fixedly installed with a sixth pulley, the outer side of the sixth pulley is provided with a second belt, the inner wall of the second belt is respectively provided with a fifth pulley and a fourth pulley, one side of the fifth pulley passes through the shell and is fixedly installed with a positioning roller, the positioning roller is rotatably installed on the inner wall of the shell, one side of the fourth pulley passes through the shell and is fixedly installed with a conveying roller, the conveying roller is rotatably installed on the inner wall of the shell.

4. A carding device for needle-punched nonwoven fabric according to claim 3, characterized in that: The magnetic separation component includes a plastic roller, the interior of the plastic roller is a cavity structure, a plurality of fixed rods are symmetrically installed on the inner walls at both ends of the plastic roller, a fifth round rod is fixedly installed on the side of the plurality of fixed rods away from the plastic roller, the fifth round rod is rotatably installed on the inner wall of the shell, a fourth round rod is sleeved inside the fifth round rod, a magnet is fixedly installed on the side of the fourth round rod facing the second servo motor, two ends of the fourth round rod are respectively fixedly installed on the inner walls of the first protective shell and the second protective shell, a third gear is fixedly installed on the side of the fifth round rod facing the second protective shell, a fifth gear is meshed on one side of the third gear, the fifth gear is fixedly installed on the sixth pulley on the side facing the second protective shell, an electrostatic roller is fixedly installed on the side of the fifth gear away from the fifth gear, and the electrostatic roller is rotatably installed on the inner wall of the shell.

5. A carding device for needle-punched nonwoven fabric according to claim 4, characterized in that: The knocking assembly includes a fourth gear, one side of the fourth gear is meshed with the third gear, a third round rod is fixedly installed on the side of the fourth gear away from the second protective shell, and penetrates the shell to fix it, a plurality of incomplete gears are installed on the outer wall of the third round rod, a plurality of the incomplete gears are meshed with racks on the upper ends, a sliding rod is installed on the upper end surface of the rack, a second sliding groove is opened on the outer wall of the sliding rod, a second round rod is slidably installed in the second sliding groove, the second round rod is fixedly installed on the inner wall of the shell, a support rod is slidably installed on the side of the sliding rod away from the plastic roller, the support rod is fixedly installed on the inner wall of the shell, a spring is installed on the side of the support rod facing the plastic roller, and the spring is fixedly installed on the sliding rod away from the support rod.

6. A carding device for needle-punched nonwoven fabric according to claim 5, characterized in that: The fourth gear is twice the size of the third gear.

7. A method for carding a needle-punched nonwoven fabric, using the carding device for carding a needle-punched nonwoven fabric according to claim 6, characterized in that: The following steps are involved: Step 1: The non-woven fabric is delivered through the conveyor roller, and then combed by the combing mechanism. At the same time, the short fibers adhering to the saw teeth will be sucked away by the dust box to prevent affecting the combing effect of the saw teeth; Step 2: The carded nonwoven fabric is positioned and transported by the positioning roller, and at the same time, the stretching mechanism stretches and shakes the nonwoven fabric; Step 3: While the non-woven fabric is being stretched and shaken, the cleaning mechanism starts working. The electrostatic roller will adsorb the dust, iron filings and short fibers again, and then separate them through the magnetic separation component. The collected short fibers are reused, and the iron filings enter the trash box. The cleaned non-woven fabric is pressed by the first pressing roller and the second pressing roller to prevent the fibers from being too soft and falling off.

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