An improved non-woven fabric cutting structure

Abstract

The present invention discloses an improved non-woven fabric cutting structure, comprising a conveyor frame, on which are respectively provided: a cutting blade having a cutting edge; and an auxiliary grinding mechanism, which includes flip blocks symmetrically arranged along the cutting blade. The cutting blade is driven to move so that the cutting edge rubs against two flip blocks and flips in opposite directions or towards each other. The improved non-woven fabric cutting structure provided by the present invention drives the flip blocks to flip when the cutting blade cuts, through the downward cutting force of the cutting blade, to rub the non-woven fabric fibers between the cutting edge and the flip blocks, grinding the fibers to increase the cutting capacity, reduce the problem of cutting failure due to cutting blade wear or fiber filling, and maintain the normal operation of the cutting blade.

Description

Technical Field

[0001] The invention relates to the technical field of non-woven fabric manufacturing, in particular to an improved non-woven fabric cutting structure. Background Art

[0002] Non-woven fabric cutting can be divided into laser cutting, electric cutting, vibration cutting and vertical cutting. Among them, laser cutting and vibration cutting are more expensive and can customize the cutting contour. Electric cutting is suitable for long-size continuous operation, and vertical cutting is suitable for segmented cutting.

[0003] According to patent number CN113293598B, publication (announcement) date: 2023-07-07, a non-woven fabric cutting device is disclosed, including a mounting frame and a cutting assembly; the mounting frame: a placing plate is installed inside, a fixing assembly is fixed on the upper side of the placing plate, a mounting frame is fixed in the middle of the upper side of the mounting frame, and a guide assembly and a pulling assembly are installed on the left end of the upper side of the mounting frame; the cutting assembly: installed on the upper side inside the mounting frame, and the non-woven fabric is cut by setting the cutting assembly; wherein: it also includes a control switch group, the control switch group is installed on the front side of the mounting frame, and the input end of the control switch group is electrically connected to the output end of the external power supply. Furthermore, the fixing assembly includes a fixing plate, a rotating shaft, a rotating ring, a pressure block and a torsion spring, which can fix the non-woven fabric when cutting it, thereby effectively avoiding the non-woven fabric from sliding during cutting and causing cutting failure, and can very conveniently cut the non-woven fabric.

[0004] In the prior art including the above-mentioned patent, vertical cutting is performed by squeezing and cutting by moving vertically relative to the fluffy multi-layer non-woven cotton fabric. After a small-sized cutting machine cuts non-woven fabrics made of PET and PP for a long time, the fibers of the plastic material will remain on the blade and the cutting edge, and the blade will age due to long-term use, causing the fibers to fill the blade and the cutting edge, resulting in gaps, and the aging of the blade will also affect the cutting effect. Summary of the Invention

[0005] The purpose of the present invention is to provide an improved non-woven fabric cutting structure, aiming to solve the problem of poor cutting effect after long-term vertical cutting.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an improved non-woven fabric cutting structure, comprising a conveying frame, on which are respectively provided:

[0007] a cutting blade having a cutting edge;

[0008] The auxiliary grinding mechanism includes turning blocks symmetrically arranged along the cutting edge. The cutting edge is driven to move so that the cutting edge is rubbed against the two turning blocks and turned in opposite directions or towards each other.

[0009] Preferably, a grinding plate is provided on the flip block, and the grinding plate flips in the opposite direction with the flip block to cooperate with the cutting edge to tear the cloth.

[0010] Preferably, the two turning blocks are driven to turn toward each other and move with the cutting blade.

[0011] Preferably, the two grinding plates are fitted to each other as the turning block turns toward each other, and clamp the cloth and move along with the cutting blade.

[0012] Preferably, a flip half plate is provided on the flip block, and a limiting sleeve is movably provided on the flip half plate, and the two are assembled at the following two stations:

[0013] First station: The limiting sleeve is mounted on the flip half plate to limit the flip half plate from flipping in the opposite direction with the cutting blade;

[0014] The second station: the limiting sleeve leaves the turning half plate so that the turning half plates turn toward each other and away from the grinding plate.

[0015] Preferably, an auxiliary blowing mechanism is further included, which includes an elastic airbag that expands and contracts as the two flip blocks flip, and the elastic airbag is fixedly connected with an air outlet facing the cutting blade and an air intake arranged on the flip block.

[0016] Preferably, the elastic airbag first contracts and then expands as the flip block flips in the opposite direction.

[0017] Preferably, the elastic airbag first expands and then contracts as the flip block flips toward each other.

[0018] Preferably, the apparatus further comprises a clamping mechanism, which comprises barbs movably arranged on the turning block, and the barbs extend as the turning block turns to pierce the cloth.

[0019] Preferably, a sliding rod is movably provided on the flip block, and an arc portion is provided on the sliding rod. The barb slides along the arc portion to extend or retract the flip block.

[0020] In the above technical solution, the present invention provides an improved non-woven fabric cutting structure, which has the following beneficial effects: when the cutting blade is cutting, the downward cutting force of the cutting blade drives the flip block to flip, so as to rub the non-woven fabric fibers between the cutting edge and the flip block, grind the fibers off to increase the cutting ability, reduce the problem of being unable to cut due to cutting blade wear or fiber filling, and maintain the normal operation of the cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 An overall schematic diagram provided for an embodiment of the present invention;

[0023] Figure 2 An exploded schematic diagram of the auxiliary grinding mechanism and the clamping mechanism provided in an embodiment of the present invention;

[0024] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0025] Figure 4 A schematic cross-sectional view of the auxiliary grinding mechanism and the clamping mechanism provided in an embodiment of the present invention;

[0026] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 6 for Figure 4 Enlarged schematic diagram at point C in the middle;

[0028] Figure 7 A schematic cross-sectional view of an auxiliary blowing mechanism provided in an embodiment of the present invention;

[0029] Figure 8 This is a partial structural diagram of the auxiliary grinding mechanism provided in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Conveyor rack; 11. Cutting blade; 3. Auxiliary grinding mechanism; 30. Elastic connecting block; 31. Turning block; 310. Guide plate; 311. Movable groove; 312. Slideway; 32. Grinding plate; 321. Sliding column; 322. Elastic strip; 323. Connecting rope; 33. Turning half plate; 331. Limiting sleeve; 34. First spring; 4. Auxiliary blowing mechanism; 41. Elastic airbag; 42. Air outlet; 43. Air collection; 5. Clamping mechanism; 51. Barb; 511. Rolling ball; 52. Sliding rod; 521. Arc portion; 522. Toggle plate; 53. Second spring; 54. Connecting rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] like Figure 1-8 As shown, an improved non-woven fabric cutting structure includes a conveyor frame 1, on which are respectively provided:

[0034] a cutting blade 11 having a cutting edge;

[0035] The auxiliary grinding mechanism 3 includes flip blocks 31 symmetrically arranged along the cutting blade 11. The cutting blade 11 is driven to move so that the cutting edge rubs against the two flip blocks 31 and flips in opposite directions or towards each other.

[0036] Specifically, the conveyor frame 1 is provided with a roller or a conveyor belt to convey the non-woven fabric to between the cutting blade 11 and the flip block 31. The conveyor frame 1 is provided with a storage groove for accommodating the flip block 31 so that the two flip blocks 31 can flip in the storage groove. An elastic connecting block 30 is provided between the flip block 31 and the storage groove to play a limiting role so that the flip block 31 can be reset after flipping. When cutting, the two flip blocks 31 are restricted so that they can only be rotated along the first end of the flip block 31 (with Figure 4 For reference, the first end is the lower end and the second end is the upper end) rotates, and then the cutting blade 11 is driven close to the flip block 31. When approaching, it first contacts the non-woven fabric and then presses down through the non-woven fabric. At this time, the flip block 31 flips in the opposite direction along the restricted first end (that is, the upper ends of the two flip blocks 31 move away from each other), so that the position where the flip block 31 contacts the blade will move with the flip. When moving, the opposite motion will rub the non-woven fabric to achieve a shearing effect to cut the non-woven fabric. When it is not necessary to completely cut the non-woven fabric, the restriction on the flip block 31 is removed. At this time, the two flip blocks 31 flip towards each other and move synchronously with the cutting blade 11, without wearing or cutting the non-woven fabric, so as to preserve the continuity of part of the non-woven fabric.

[0037] Furthermore, the structure for driving the cutting blade 11 can be a screw arranged at the output end of the servo motor, and the threaded sleeve on the screw cooperates with the scissors frame to move the cutting blade 11; the cutting blade 11 can be controlled by a hydraulic cylinder that can be precisely controlled; or the cutting blade 11 can be controlled by a telescopic motor that can control the telescopic distance.

[0038] In the above technical solution, when the cutting blade 11 cuts, the downward cutting force of the cutting blade 11 drives the flip block 31 to flip, so as to rub the non-woven fabric fibers between the cutting edge and the flip block 31, grind the fibers off to increase the cutting ability, reduce the problem of being unable to cut due to wear of the cutting blade 11 or fiber filling, and maintain the normal operation of the cutting blade 11.

[0039] As an embodiment provided by the present invention, a grinding plate 32 is provided on the flip block 31 , and the grinding plate 32 flips in the opposite direction with the flip block 31 to cooperate with the cutting edge to tear the cloth.

[0040] Specifically, the surface of the grinding plate 32 is a frosted layer, which can increase friction. When the flip block 31 flips in the opposite direction, the grinding plate 32 will move in the opposite direction of the cutting edge to rub the non-woven fabric, causing the fibers to break and enhance the shearing effect. When the flip block 31 flips in the opposite direction, the grinding plate 32 will drive the non-woven fabric to move the hook and pull the non-woven fabric fibers through the frosted layer, and try to avoid the non-woven fabric from sliding when the flip block 31 flips in the opposite direction, resulting in the non-woven fabric not being cut off together with the flip block 31 and the cutting blade 11.

[0041] During cutting, the two flip blocks 31 are restrained, and then the cutting blade 11 is driven close to the flip blocks 31, causing the flip blocks 31 to flip in the opposite direction, so that the flip blocks 31 and the cutting blade 11 move in opposite directions, thereby rubbing the non-woven fabric through the grinding plate 32 to cut the non-woven fabric. When the non-woven fabric does not need to be completely cut, the restraint on the flip blocks 31 is removed. At this time, the two flip blocks 31 flip towards each other, and the grinding plate 32 drives the non-woven fabric and the cutting blade 11 to move synchronously, without wearing or cutting the non-woven fabric, so as to retain part of the non-woven fabric and make it coherent.

[0042] As an embodiment provided by the present invention, the two turning blocks 31 are driven to turn toward each other and move along with the cutting blade 11 .

[0043] Specifically, when there is no need to completely cut the non-woven fabric, the restriction on the flip block 31 is lifted. At this time, when the cutting blade 11 approaches the flip block 31 and contacts the non-woven fabric, the flip block 31 will be pushed by the cutting blade 11 to move toward the first end while flipping toward each other (that is, the upper ends of the two flip blocks 31 are close to each other). When the upper ends of the flip blocks 31 are close, a part of the non-woven fabric will be clamped and move synchronously with the flip block 31 and the cutting blade 11 to avoid the cutting blade 11 and the flip block 31 from shearing the non-woven fabric. At this time, only the surface non-woven fabric is cut off by the cutting blade 11.

[0044] During cutting, the two flip blocks 31 are restrained, and then the cutting blade 11 is driven close to the flip block 31, causing the flip block 31 to flip in the opposite direction, so that the flip block 31 and the cutting blade 11 move in opposite directions, rubbing the non-woven fabric through the grinding plate 32 to cut the non-woven fabric. When the non-woven fabric does not need to be completely cut, the restraint on the flip block 31 is removed. At this time, the two flip blocks 31 will flip towards each other as the cutting blade 11 pushes against them, and the non-woven fabric and the cutting blade 11 will move synchronously through the grinding plate 32. Only the sharpness of the cutting blade 11 squeezes and cuts the surface of the non-woven fabric, without wearing or shearing the non-woven fabric, so as to retain part of the non-woven fabric and make it coherent.

[0045] As the best embodiment provided by the present invention, the two grinding plates 32 are attached to each other as the turning block 31 turns toward each other, and clamp the cloth and move along with the cutting blade 11.

[0046] When the paving chute 31 is in the state of being rotated, the paving chute 31 is in the state of being rotated, and the paving chute 31 is in the state of being rotated.

[0047] When cutting, the two flip blocks 31 are restrained, and then the cutting blade 11 is driven close to the flip block 31, causing the flip block 31 to flip in the opposite direction, so that the flip block 31 and the cutting blade 11 move in opposite directions, and the non-woven fabric is rubbed by the grinding plate 32 to cut the non-woven fabric. When it is not necessary to completely cut the non-woven fabric, the restriction on the flip block 31 is removed. At this time, the two flip blocks 31 will flip towards each other as the cutting blade 11 pushes against them, and the non-woven fabric and the cutting blade 11 are driven to move synchronously through the grinding plate 32. Only the sharpness of the cutting blade 11 is used to squeeze and cut off the surface of the non-woven fabric, without wearing or shearing the non-woven fabric, so as to retain part of the non-woven fabric and make it coherent. At the same time, the grinding plate 32 will move along the flip block 31 to clamp the non-woven fabric aligned with the cutting blade 11 for precise cutting.

[0048] As the best embodiment provided by the present invention, a flip half plate 33 is provided on the flip block 31, and a limiting sleeve 331 is movably provided on the flip half plate 33, and the two are assembled at the following two stations:

[0049] First station: The limiting sleeve 331 is sleeved on the flip half plate 33 to limit the flip half plate 33 from flipping in the opposite direction with the cutting blade 11;

[0050] Second working station: the limiting sleeve 331 leaves the flip half plate 33 , so that the flip half plate 33 flips toward each other and away from the grinding plate 32 .

[0051] Specifically, the limiting sleeve 331 is slidably connected to the conveying frame 1, and a first spring 34 is provided between the two flip half plates 33. When it is necessary to switch to the second work station, the limiting sleeve 331 is driven to slide out along the flip half plate 33. At this time, the flip half plate 33 is not restricted and can be pushed by the cutting blade 11 to flip toward each other. When it is necessary to switch to the first work station, the limiting sleeve 331 is driven to slide in along the small end opened on the two flip half plates 33 to guide the limiting sleeve 331 into the limiting sleeve 331 and limit the compression of the first spring 34, so that the flip half plate 33 can only rotate along the limiting sleeve 331 when the flip block 31 rotates, so as to be pushed by the cutting blade 11 to rotate in the opposite direction.

[0052] When cutting, the limiting sleeve 331 is switched to the first station to limit the two flip blocks 31, and then the cutting blade 11 is driven close to the flip block 31 to drive the flip block 31 to flip in the opposite direction, so that the flip block 31 and the cutting blade 11 move in opposite directions, so as to rub the non-woven fabric through the grinding plate 32 to cut the non-woven fabric. When it is not necessary to completely cut the non-woven fabric, the limiting sleeve 331 is switched to the second station to cancel the restriction on the flip block 31. At this time, the two flip blocks 31 will flip towards each other as the cutting blade 11 pushes against them, and the non-woven fabric and the cutting blade 11 will move synchronously through the grinding plate 32. Only the sharpness of the cutting blade 11 is used to squeeze and cut off the surface non-woven fabric, without wearing or shearing the non-woven fabric, so as to retain part of the non-woven fabric and make it continuous. At the same time, the grinding plate 32 will move along the flip block 31 to clamp the non-woven fabric aligned with the cutting blade 11 for precise cutting.

[0053] As an embodiment provided by the present invention, it also includes an auxiliary blowing mechanism 4, which includes an elastic airbag 41 that expands and contracts as the two flip blocks 31 flip, and the elastic airbag 41 is fixedly connected to an air outlet portion 42 facing the cutting blade 11 and an air intake portion 43 arranged on the flip block 31.

[0054] Specifically, the elastic airbag 41 is arranged at the first end of the flip block 31, and the air outlet 42 is facing between the two flip blocks 31. When the elastic airbag 41 is flipped and squeezed along the flip block 31, the internal gas will be squeezed out to blow along the air outlet 42 to clean the fibers remaining on the cutting blade 11, so as to avoid the accumulation of fibers on the cutting blade 11 and affect the cutting effect.

[0055] During cutting operation, the limiting sleeve 331 is switched to the first position to limit the two flip blocks 31. The cutting blade 11 is then driven close to the flip block 31, causing the flip block 31 to flip in the opposite direction, so that the flip block 31 and the cutting blade 11 move in opposite directions, rubbing the non-woven fabric through the grinding plate 32 to cut the non-woven fabric. At the same time, the elastic airbag 41 is squeezed and blown to clean the fibers remaining on the cutting blade 11. When it is not necessary to completely cut the non-woven fabric, the limiting sleeve 331 is switched to the second position to remove the restriction on the flip block 31. At this time, the two flip blocks 31 will flip toward each other as the cutting blade 11 pushes against them. The grinding plate 32 drives the non-woven fabric and the cutting blade 11 to move synchronously. Only the sharpness of the cutting blade 11 squeezes and cuts the surface non-woven fabric, without wearing or shearing the non-woven fabric, so as to retain a portion of the non-woven fabric and keep it continuous. At the same time, the grinding plate 32 moves along the flip block 31 to clamp the non-woven fabric aligned with the cutting blade 11 for precise cutting.

[0056] As the best embodiment provided by the present invention, the elastic airbag 41 first contracts and then expands as the flip block 31 flips in the opposite direction;

[0057] The elastic airbag 41 first expands and then contracts as the turnover block 31 turns toward each other.

[0058] Specifically, the air outlet portion 42 and the air collection portion 43 are both one-way air passages, which can only discharge or collect air. When the limiting sleeve 331 is in the first position, the first end of the flip block 31 will approach each other as it flips in the opposite direction, so as to squeeze the elastic airbag 41 to contract and discharge air, and blow air to the grinding plate 32 and the cutting blade 11 that are moving in the opposite direction and rubbing, so as to remove excess fibers generated by friction to avoid fiber residue. When the limiting sleeve 331 is in the second position, the first end of the flip block 31 will move away from each other as it flips in the opposite direction. At this time, air will be collected first by the air collection portion 43 to absorb the non-woven fabric for auxiliary fixation, reduce the non-woven fabric from slipping along the flip block 31, and assist the synchronous movement of the grinding plate 32 and the cutting blade 11. When the flip block 31 is reset, the air outlet portion 42 discharges air to clean the fibers remaining on the cutting blade 11 to avoid fiber residue. The pushing force of the airflow will also assist the non-woven fabric to separate from the grinding plate 32.

[0059] When cutting, the limiting sleeve 331 is switched to the first position to limit the two flip blocks 31, and then the cutting blade 11 is driven close to the flip block 31 to drive the flip block 31 to flip in the opposite direction, so that the flip block 31 and the cutting blade 11 move in opposite directions to rub the non-woven fabric through the grinding plate 32 to cut the non-woven fabric, and at the same time the air outlet 42 releases air to remove excess fibers generated by friction. When the non-woven fabric does not need to be completely cut, the limiting sleeve 331 is switched to the second station, and the restriction on the flip block 31 is cancelled. At this time, the two flip blocks 31 will flip toward each other as the cutting blade 11 pushes against them, and the non-woven fabric and the cutting blade 11 are driven to move synchronously through the grinding plate 32. The surface non-woven fabric is squeezed and cut off only by the sharpness of the cutting blade 11, and the non-woven fabric will not be worn or cut, so as to retain part of the non-woven fabric and make it continuous. At the same time, the grinding plate 32 will move along the flip block 31 to clamp the non-woven fabric aligned with the cutting blade 11 for precise cutting, and the air collecting part 43 collects air and absorbs the non-woven fabric for auxiliary fixation. As the flip block 31 is reset, the air outlet part 42 releases air to clean the fibers on the cutting blade 11 and assist the non-woven fabric to separate from the grinding plate 32.

[0060] As an embodiment provided by the present invention, it also includes a clamping mechanism 5, which includes a barb 51 movably provided on the flip block 31, and the barb 51 extends as the flip block 31 flips to pierce the fabric;

[0061] A sliding rod 52 is movably provided on the flip block 31 . The sliding rod 52 is provided with an arc portion 521 . The barb 51 slides along the arc portion 521 to extend or retract the flip block 31 .

[0062] Specifically, the sliding rod 52 is rotatably connected to a connecting rod 54, and the connecting rod 54 is rotatably connected to the storage groove. A slide 312 is provided on the flip block 31, and a movable groove 311 is provided on the slide 312. The sliding rod 52 is slidably connected to the slide 312, and the barb 51 is slidably connected to the movable groove 311. The barb 51 is rotatably connected to the ball 511, and the ball 511 fits the arc portion 521. When the flip block 31 is flipped in the opposite direction or toward each other, the connecting rod 54 will move away from or approach the flip block 31, so that the sliding rod 52 slides along the slide 312, so that the barb 51 extends along the movable groove 311 to puncture the non-woven fabric for fixation, thereby assisting the cutting blade 11 in cutting.

[0063] When cutting, the limiting sleeve 331 is switched to the first position to limit the two flip blocks 31, and then the cutting blade 11 is driven close to the flip block 31 to drive the flip block 31 and the cutting blade 11 to move in the opposite direction to rub the non-woven fabric through the grinding plate 32 to cut it. The flip block 31 is flipped in the opposite direction, so that the barbs 51 on the flip block 31 extend out to pierce the non-woven fabric for fixation, and at the same time the air outlet 42 releases air to remove excess fibers generated by friction. When the non-woven fabric does not need to be completely cut, the limiting sleeve 331 is switched to the second station, and the restriction on the flip block 31 is cancelled. At this time, the two flip blocks 31 will flip toward each other as the cutting blade 11 pushes against them, and the non-woven fabric and the cutting blade 11 are driven to move synchronously through the grinding plate 32. The surface non-woven fabric is squeezed and cut off only by the sharpness of the cutting blade 11, and the barbs 51 on the flip block 31 are extended to pierce the non-woven fabric for fixation. At the same time, the grinding plate 32 will move along the flip block 31 to clamp the non-woven fabric aligned with the cutting blade 11 for precise cutting, and the air collecting part 43 will collect air and absorb the non-woven fabric for auxiliary fixation. As the flip block 31 is reset, the air outlet part 42 releases air to clean the fibers on the cutting blade 11 and assist the non-woven fabric to separate from the grinding plate 32.

[0064] As the best embodiment provided by the present invention, the barbs 51 are flipped in the same direction as the flip block 31 is flipped in the opposite direction or in the opposite direction.

[0065] Specifically, a toggle plate 522 is symmetrically provided along the arc portion 521 on the sliding rod 52, and a second spring 53 for resetting is provided between the sliding rod 52 and the slide 312. When the flip block 31 flips in the opposite direction or toward each other, the sliding rod 52 moves closer to or away from the cutting blade 11, so as to rotate the toggle plate 522 in the flipping direction of the flip block 31 through the toggle plate 522. When flipping and grinding and cutting in the opposite direction, the two sets of flipped barbs 51 will tension the non-woven fabric to assist the cutting of the cutting blade 11, and when flipping toward each other, the two sets of flipped barbs 51 will move the non-woven fabric a short distance toward the cutting blade 11, so that the non-woven fabric has a stroke to move together with the cutting blade 11 to avoid the non-woven fabric being cut when being cut.

[0066] When cutting, the limiting sleeve 331 is switched to the first position to limit the two flip blocks 31, and then the cutting blade 11 is driven close to the flip block 31 to drive the flip block 31 and the cutting blade 11 to move in the opposite direction to rub the non-woven fabric through the grinding plate 32 to cut it. The flip block 31 flips in the opposite direction, so that the barbs 51 on the flip block 31 extend out to pierce the non-woven fabric for fixing. As the barbs 51 flip, the non-woven fabric will be tensioned to assist the cutting of the cutting blade 11, and at the same time, the air outlet 42 will release air to remove excess fibers generated by friction. When the non-woven fabric does not need to be completely cut, the limiting sleeve 331 is switched to the second station, and the restriction on the flip block 31 is cancelled. At this time, the two flip blocks 31 will flip toward each other as the cutting blade 11 pushes against them, and the non-woven fabric and the cutting blade 11 are driven to move synchronously through the grinding plate 32. The surface non-woven fabric is squeezed and cut off only by the sharpness of the cutting blade 11, and the barbs 51 on the flip block 31 are extended to pierce the non-woven fabric for fixation. As the barbs 51 flip, the non-woven fabric is moved a short distance toward the cutting blade 11. At the same time, the grinding plate 32 will move along the flip block 31 to clamp the non-woven fabric aligned with the cutting blade 11 for precise cutting. The air collecting part 43 will also collect air and adsorb the non-woven fabric for auxiliary fixation. As the flip block 31 is reset, the air outlet part 42 releases air to clean the fibers on the cutting blade 11 and assist the non-woven fabric to separate from the grinding plate 32.

[0067] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An improved non-woven fabric cutting structure, comprising a conveying frame (1), characterized in that: The conveying frame (1) is respectively provided with: a cutting blade (11) having a cutting edge; An auxiliary grinding mechanism (3) includes flip blocks (31) symmetrically arranged along the cutting blade (11), wherein the cutting blade (11) is driven to move so that the cutting edge is rubbed against two of the flip blocks (31) and flipped in opposite directions or towards each other; The conveying frame (1) is provided with a receiving groove for accommodating the flip blocks (31), so that the two flip blocks (31) can flip in the receiving groove, and an elastic connecting block (30) is provided between the flip blocks (31) and the receiving groove; A grinding plate (32) is provided on the turning block (31), and the grinding plate (32) turns in the opposite direction of the turning block (31) to cooperate with the cutting edge to tear the cloth; The two flip blocks (31) are driven to flip toward each other and move along with the cutting blade (11); The two grinding plates (32) are turned toward each other as the turning block (31) turns over and fits together, and clamps the cloth and moves along with the cutting blade (11); The flip block (31) is provided with a flip half plate (33), and a limiting sleeve (331) is movably provided on the flip half plate (33), and the two are assembled at the following two stations: First station: the limiting sleeve (331) is sleeved on the flip half plate (33) so that the flip block (31) flips in the opposite direction driven by the cutting blade (11); Second workstation: the limiting sleeve (331) leaves the flip half plate (33), so that the two flip blocks (31) flip toward each other as the cutting blade (11) pushes against them.

2. An improved nonwoven fabric cutting structure according to claim 1, characterized in that: The auxiliary blowing mechanism (4) includes an elastic air bag (41) that expands and contracts as the two flip blocks (31) flip, and the elastic air bag (41) is fixedly connected to an air outlet (42) facing the cutting blade (11) and an air receiving portion (43) arranged on the flip block (31).

3. An improved nonwoven fabric cutting structure according to claim 2, characterized in that: The elastic airbag (41) first contracts and then expands as the flip block (31) flips in the opposite direction.

4. An improved nonwoven fabric cutting structure according to claim 2, characterized in that: The elastic airbag (41) first expands and then contracts as the flip block (31) flips toward each other.

5. An improved nonwoven fabric cutting structure according to claim 1, characterized in that: It also includes a clamping mechanism (5), the clamping mechanism (5) including barbs (51) movably arranged on the flip block (31), the barbs (51) extending as the flip block (31) flips to pierce the cloth.

6. An improved nonwoven fabric cutting structure according to claim 5, characterized in that: A sliding rod (52) is movably provided on the flip block (31), and an arc portion (521) is provided on the sliding rod (52). The barb (51) slides along the arc portion (521) to extend or retract the flip block (31).

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