PP or PET spun-bonded hydroentangled non-woven fabric slitting machine

Abstract

The present application relates to the technical field of non-woven fabric production, and discloses a PP or PET spun-bonded hydroentangled non-woven fabric slitting machine, which comprises a mounting frame, a support plate for supporting non-woven fabric, a cutting mechanism for slitting non-woven fabric and a conveying mechanism for conveying the slitted non-woven fabric are sequentially arranged on the upper end surface of the mounting frame along the length direction, and the conveying part of the conveying mechanism is located below the upper surface of the support plate. Since the cutting knife assembly is obliquely arranged between the upper mounting shaft and the lower mounting shaft, the cutting knife in a certain cutting knife assembly can be individually disassembled, the technical problem that the replacement of the cutting knife is relatively complicated is solved, and the cutting knife in the existing technology is mostly an annular blade, so that when the middle part of the cutting knife needs to be replaced, a plurality of cutting knives need to be disassembled before the replacement can be performed.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric production technology, and in particular to a PP or PET spunbond hydroentangled nonwoven fabric slitting machine. Background Technology

[0002] Non-woven fabric, also known as non-woven cloth, is composed of oriented or random fibers. It is called cloth because it has the appearance and some properties of cloth. Non-woven fabric has the characteristics of being moisture-proof, breathable, flexible, lightweight, non-flammable, easy to decompose, non-toxic and non-irritating, rich in color, inexpensive, and recyclable.

[0003] In practical applications, nonwoven fabrics often need to be cut from wide raw materials into the required widths. Nonwoven fabric slitting machines are a type of mechanical equipment used to cut wide nonwoven fabrics, paper, mica tape, or film into multiple narrow strips of material. The existing technology has the following problems: 1. Most existing cutting blades use ring blades, which means that when the blade in the middle needs to be replaced, multiple blades need to be removed before replacement, making the blade replacement function cumbersome. For example, Chinese Patent No. CN108547137B discloses a PP or PET spunbond spunlace nonwoven fabric slitting machine; 2. Existing cutting blades are fixed on the shaft of a rotating roller. During cutting, the fabric is supported by another roller. This results in the front and back sides of the cutting part not being able to effectively support the fabric, which easily causes the fabric to vibrate during the transmission process, affecting the cutting quality. For example, Chinese Patent No. CN108547137B and Chinese Patent No. CN207862671U disclose a PP or PET spunbond spunlace nonwoven fabric slitting machine. Summary of the Invention

[0004] The purpose of this invention is to provide a PP or PET spunbond hydroentangled nonwoven fabric slitting machine to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A PP or PET spunbond spunlace nonwoven fabric slitting machine includes a mounting frame, which includes a support plate for supporting the nonwoven fabric, a cutting mechanism for slitting the nonwoven fabric, and a conveying mechanism for conveying the slitting nonwoven fabric, arranged sequentially along the length of the upper end face of the mounting frame. The conveying part of the conveying mechanism is located below the plate surface of the support plate.

[0007] The cutting mechanism includes an L-shaped mounting frame. The upper end of the vertical side of the L-shaped mounting frame is located above the support plate, and an upper mounting shaft spanning the mounting frame is detachably connected to the upper end of the vertical side of the L-shaped mounting frame. The outer end of the horizontal side of the L-shaped mounting frame is located below the side of the support plate near the conveying mechanism, and a lower mounting shaft spanning the mounting frame is detachably connected to the outer end of the horizontal side of the L-shaped mounting frame. The upper and lower mounting shafts are spaced apart along the width direction of the mounting frame and have multiple cutting blade assemblies for cutting non-woven fabric. The cutting blade assemblies are inclined vertically, and the cutting part of the cutting blade assembly faces the upper edge of the inner end of the support plate. There is a micro gap between the cutting part of the cutting blade assembly and the upper edge of the inner end of the support plate.

[0008] Preferably, the cutting blade assembly includes an upper mounting base, a lower mounting base, and a cutting blade. The upper mounting base is slidably sleeved on the upper mounting shaft body along the length direction of the upper mounting shaft, and the upper mounting base is provided with a first locking member that can fix it to the upper mounting shaft body. The lower mounting base is slidably sleeved on the lower mounting shaft body along the length direction of the lower mounting shaft, and the lower mounting base is provided with a second locking member that can fix it to the lower mounting shaft body. A cutting blade for cutting non-woven fabric is detachably connected between the upper mounting base and the lower mounting base, and the cutting edge of the cutting blade faces the upper edge of the inner end of the support plate, and there is a micro gap between the cutting edge of the cutting blade and the upper edge of the inner end of the support plate.

[0009] Preferably, both the upper mounting shaft and the lower mounting shaft are provided with positioning grooves along their length, and both the upper mounting seat and the lower mounting seat are provided with positioning protrusions that match the width of the corresponding positioning groove opening.

[0010] Preferably, the locking element is a locking bolt, the end of the locking bolt thread movably passes through the corresponding mounting seat and the positioning protrusion in the mounting seat, and the end face of the locking bolt thread abuts against the bottom of the positioning groove in the corresponding mounting shaft, and the locking bolt thread is threadedly engaged with the corresponding mounting seat and the positioning protrusion in the mounting seat.

[0011] Preferably, both the upper mounting shaft and the lower mounting shaft are provided with scales that can measure the lateral position of the upper mounting seat and the lower mounting seat respectively.

[0012] Preferably, one end of the support plate corresponding to the cutting mechanism is hinged to the mounting frame, and the mounting frame is provided with an angle adjustment structure at the other end of the support plate that can drive that end of the support plate to flip upward.

[0013] Preferably, the angle adjustment structure includes an adjustment screw arranged along the length of the mounting frame. Both ends of the adjustment screw are rotatably connected to the mounting frame. The adjustment screw body is threaded with a threaded slider. The upper end of the threaded slider is hinged with a support rod that is inclined vertically. The upper end of the support rod is hinged to the lower surface of the support plate at one end away from the cutting mechanism.

[0014] Preferably, the L-shaped mounting bracket has a vertical groove on its vertical side, and a slider is slidably fitted into the groove cavity. The slider is rotatably connected to a support plate and can abut against a pressure roller fitted on the surface of the support plate. A vertical compression spring is provided between the top wall of the vertical groove cavity and the slider.

[0015] Preferably, the conveying mechanism includes columns located on both sides of one end of the mounting frame away from the support plate, a lower roller and an upper roller located above the lower roller and used to squeeze the slit nonwoven fabric on the lower roller are rotatably connected between the two columns, and a drive motor for driving the lower roller to rotate is provided on the outside of one of the columns.

[0016] Preferably, a bracket is provided on the outside of the column that is not connected to the drive motor. The bracket is equipped with an encoder device, and the output shaft of the encoder device is coaxially connected to the end of the lower roller on the same side through a coupling.

[0017] The beneficial effects are:

[0018] 1. Because the cutting blade assembly is tilted vertically between the upper and lower mounting shafts, it is possible to remove the cutting blade from a single cutting blade assembly. This solves the technical problem that in the prior art, most cutting blades use ring blades, which means that when the blade in the middle part needs to be replaced, multiple blades need to be removed before replacement, making the blade replacement function cumbersome.

[0019] 2. Due to the use of a support plate and a conveying mechanism, and because the conveying part of the conveying mechanism is located below the surface of the support plate, the non-woven fabric adheres to the surface of the support plate during the conveying process, which can effectively prevent the non-woven fabric from vibrating and ensure the quality of slitting.

[0020] 3. Due to the adoption of the angle adjustment structure, by rotating the adjusting screw, the adjusting screw drives the threaded slider to move, and the threaded slider drives the lower end of the support rod to move, so that the vertical tilt angle of the support rod changes, and thus the height of the upper end of the support rod changes. This realizes the function of adjusting the vertical tilt angle of the support plate, and ultimately ensures that the non-woven fabric adheres to the surface of the support plate, further ensuring that the non-woven fabric will not vibrate vertically.

[0021] 4. By compressing the slider with a compression spring, the slider drives the pressure roller to descend, causing the pressure roller to press down on the non-woven fabric, ensuring that the non-woven fabric is in close contact with the surface of the support plate, and further ensuring that the non-woven fabric will not vibrate up and down.

[0022] 5. Due to the use of an encoder device, the rotational speed of the lower roller can be detected, thereby detecting the length of the slit nonwoven fabric.

[0023] The additional technical features and advantages of the present invention will become more apparent from the following description, or may be learned through practice of the invention. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is the front view of the present invention;

[0027] Figure 3 This is the right view of the present invention;

[0028] Figure 4 This is a schematic diagram of the cutting mechanism in this invention;

[0029] Figure 5 This is the front view of the invention in use.

[0030] The annotations in the attached figures are explained as follows:

[0031] 1. Mounting bracket; 2. Support plate; 3. Cutting mechanism; 31. L-shaped mounting bracket; 311. Vertical slide rail; 312. Slider; 313. Pressure roller; 314. Compression spring; 32. Upper mounting shaft; 33. Lower mounting shaft; 34. Cutting blade assembly; 341. Upper mounting seat; 342. Lower mounting seat; 343. Cutting blade; 344. First locking element; 345. Second locking element; 4. Conveying mechanism; 41. Column; 42. Lower roller; 43. Upper roller; 44. Drive motor; 45. Bracket; 46. Encoder device; 5. Angle adjustment structure; 51. Adjusting screw; 52. Threaded slider; 53. Support rod. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Example 1, as Figure 1-5 As shown, a PP or PET spunbond spunlace nonwoven fabric slitting machine includes a mounting frame 1. The upper end face of the mounting frame 1 is provided with a support plate 2 for supporting the nonwoven fabric, a cutting mechanism 3 for slitting the nonwoven fabric, and a conveying mechanism 4 for conveying the slitting nonwoven fabric in sequence along its length direction. The conveying part of the conveying mechanism 4 is located below the upper surface of the support plate 2.

[0035] The cutting mechanism 3 includes an L-shaped mounting frame 31. The upper end of the vertical side of the L-shaped mounting frame 31 is located above the support plate 2. The upper end of the vertical side of the L-shaped mounting frame 31 is detachably connected to an upper mounting shaft 32 that spans across the mounting frame 1. The outer end of the horizontal side of the L-shaped mounting frame 31 is located below the side of the support plate 2 near the conveying mechanism 3. The outer end of the horizontal side of the L-shaped mounting frame 31 is detachably connected to a lower mounting shaft 33 that spans across the mounting frame 1. The upper mounting shaft 32 and the lower mounting shaft 33 are spaced apart along the width direction of the mounting frame 1 and have multiple cutting blade assemblies 34 for cutting nonwoven fabric. The cutting blade assemblies 34 are inclined vertically and vertically. The cutting part of the cutting blade assembly 34 faces the upper edge of the inner end of the support plate 2, and there is a micro gap between the cutting part of the cutting blade assembly 34 and the upper edge of the inner end of the support plate 2.

[0036] This design, by using the cutting blade assembly 34 tilted vertically between the upper mounting shaft 32 and the lower mounting shaft 33, allows for the individual removal of the cutting blade 341 from a single cutting blade assembly 34. This solves the technical problem in the prior art where most cutting blades use annular blades, which means that when the blade in the middle part needs to be replaced, multiple blades need to be removed before replacement, making the blade replacement function cumbersome.

[0037] Because of the use of the support plate 2 and the conveying mechanism 4, and because the conveying part of the conveying mechanism 4 is located below the upper surface of the support plate 2, the nonwoven fabric adheres to the upper surface of the support plate 2 during the conveying process, thus effectively preventing the nonwoven fabric from vibrating and ensuring the quality of slitting.

[0038] Example 2, based on Example 1, such as Figure 4As shown, the cutting blade assembly 34 includes an upper mounting base 341, a lower mounting base 342, and a cutting blade 343. The upper mounting base 341 is slidably sleeved on the shaft of the upper mounting shaft 32 along the length direction of the upper mounting shaft 32, and the upper mounting base 341 is provided with a first locking member 344 that can fix it to the shaft of the upper mounting shaft 32. The lower mounting base 342 is slidably sleeved on the shaft of the lower mounting shaft 33 along the length direction of the lower mounting shaft 33, and the lower mounting base 342 is provided with a second locking member 345 that can fix it to the shaft of the lower mounting shaft 33. A cutting blade 343 for cutting non-woven fabric is detachably connected between the upper mounting base 341 and the lower mounting base 342. The cutting edge of the cutting blade 343 faces the upper edge of the inner end of the support plate 2, and there is a micro gap between the cutting edge of the cutting blade 343 and the upper edge of the inner end of the support plate 2, which ensures that the cutting blade 343 can move laterally.

[0039] With this configuration, the cutting blades 343 are fixed by the upper mounting base 341 and the lower mounting base 342, which can move laterally along the mounting frame 1. Therefore, the spacing between adjacent cutting blades 343 can be adjusted as needed, thereby enabling the cutting of nonwoven fabrics of different widths and improving practicality.

[0040] Example 3, based on Example 1, such as Figure 4 As shown, both the upper mounting shaft 32 and the lower mounting shaft 33 are provided with positioning grooves along their length direction, and both the upper mounting base 341 and the lower mounting base 342 are provided with positioning protrusions that match the width of the corresponding positioning groove opening.

[0041] This arrangement prevents the upper mounting base 341 and the lower mounting base 342 from rotating before the cutting blade 343 is installed, thus preventing interference with the installation of the cutting blade 343.

[0042] The locking component is a locking bolt. The end of the locking bolt thread moves through the corresponding mounting base and the positioning protrusion in the mounting base. The end face of the locking bolt thread abuts against the bottom of the positioning groove in the corresponding mounting shaft. The locking bolt thread is threadedly engaged with the corresponding mounting base and the positioning protrusion in the mounting base.

[0043] This design prevents the locking element from contacting the corresponding mounting shaft, which could cause deformation of the mounting shaft and thus affect the movement of the mounting base.

[0044] Both the upper mounting shaft 32 and the lower mounting shaft 33 are equipped with scales that can measure the lateral position of the upper mounting base 341 and the lower mounting base 342 respectively. This setting allows for quick determination of the lateral position of the mounting base. Specifically, "mounting base" is a general term for both the upper mounting base 341 and the lower mounting base 342. In other words, "mounting base" is an abbreviation for both the upper mounting base 341 and the lower mounting base 342. Similarly, "mounting shaft" is a general term for both the upper mounting shaft 32 and the lower mounting shaft 33.

[0045] Example 4, based on Example 1, such as Figure 2 As shown, one end of the support plate 2 corresponding to the cutting mechanism 3 is hinged to the mounting frame 1, and the mounting frame 1 is provided with an angle adjustment structure 5 at the other end of the support plate 2, which can drive the support plate 2 to flip upward.

[0046] The angle adjustment structure 5 includes an adjustment screw 51 arranged along the length of the mounting frame 1. Both ends of the adjustment screw 51 are rotatably connected to the mounting frame 1. The screw body of the adjustment screw 51 is threaded with a threaded slider 52. The upper end of the threaded slider 52 is hinged with a support rod 53 that is inclined vertically. The upper end of the support rod 53 is hinged to the lower surface of the support plate 2 at one end away from the cutting mechanism 3.

[0047] This setup allows for adjustment of the support plate 2's tilt angle by rotating the adjusting screw 51. The adjusting screw 51 moves the threaded slider 52, which in turn moves the lower end of the support rod 53, causing the tilt angle of the support rod 53 to change. This, in turn, changes the height of the upper end of the support rod 53, thus achieving the function of adjusting the tilt angle of the support plate 2. Ultimately, this ensures that the nonwoven fabric adheres to the upper surface of the support plate 2, further preventing the nonwoven fabric from vibrating vertically.

[0048] Example 5, based on Example 1, such as Figure 2 As shown, the vertical side of the L-shaped mounting bracket 31 is provided with a vertical slide groove 311. A slider 312 is slidably fitted into the groove cavity of the vertical slide groove 311. The slider 312 is rotatably connected to a pressure roller 313 that spans the support plate 2 and can abut against the upper surface of the support plate 2. A vertical compression spring 314 is provided between the top wall of the groove cavity of the vertical slide groove 311 and the slider 312.

[0049] This setup allows the compression spring 314 to press the slider 312, which in turn causes the pressure roller 313 to descend, pressing down on the nonwoven fabric. This ensures that the nonwoven fabric adheres to the upper surface of the support plate 2, further preventing the nonwoven fabric from vibrating up and down.

[0050] Example 6, based on Example 1, such as Figure 1-3 As shown, the conveying mechanism 4 includes columns 41 located on both sides of one end of the mounting frame 1 away from the support plate 2. A lower roller 42 and an upper roller 43 located above the lower roller 42 and used to squeeze the slit nonwoven fabric on the lower roller 42 are rotatably connected between the two columns 41. A drive motor 44 for driving the lower roller 42 to rotate is provided on the outside of one of the columns 41.

[0051] A bracket 45 is provided on the outside of the column 41 which is not connected to the drive motor 44. The bracket 45 is equipped with an encoder device 46, and the output shaft of the encoder device 46 is coaxially connected to the end of the lower roller 42 on the same side through a coupling.

[0052] This setup, with the use of encoder device 46, allows the speed of the lower roller 42 to be detected, thereby enabling the detection of the length of the slit nonwoven fabric.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PP or PET spunbond hydroentangled nonwoven fabric slitting machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) includes a support plate (2) for supporting nonwoven fabric, a cutting mechanism (3) for cutting nonwoven fabric, and a conveying mechanism (4) for conveying the cut nonwoven fabric in sequence along its length direction on the upper end surface, and the conveying part of the conveying mechanism (4) is located below the upper plate surface of the support plate (2); The cutting mechanism (3) includes an L-shaped mounting frame (31). The upper end of the vertical side of the L-shaped mounting frame (31) is located above the support plate (2). The upper end of the vertical side of the L-shaped mounting frame (31) is detachably connected to an upper mounting shaft (32) that spans the mounting frame (1). The outer end of the horizontal side of the L-shaped mounting frame (31) is located below the side of the support plate (2) near the conveying mechanism (4). The outer end of the horizontal side of the L-shaped mounting frame (31) is detachably connected to a lower mounting shaft (33) that spans the mounting frame (1). The upper mounting shaft (32) and the lower mounting shaft (33) are provided with multiple cutting blade assemblies (34) for cutting nonwoven fabric at intervals along the width direction of the mounting frame (1). The cutting blade assemblies (34) are inclined up and down. The cutting part of the cutting blade assembly (34) faces the upper edge of the inner end of the support plate (2). There is a micro gap between the cutting part of the cutting blade assembly (34) and the upper edge of the inner end of the support plate (2). The cutting blade assembly (34) includes an upper mounting base (341), a lower mounting base (342), and a cutting blade (343). The upper mounting base (341) is slidably sleeved on the shaft of the upper mounting shaft (32) along the length direction of the upper mounting shaft (32), and the upper mounting base (341) is provided with a first locking member (344) that can fix it to the shaft of the upper mounting shaft (32). The lower mounting base (342) is slidably sleeved on the lower mounting shaft (33) along the length direction of the lower mounting shaft (33). The shaft (33) is mounted on the shaft body, and the lower mounting base (342) is provided with a second locking member (345) that can fix it to the shaft body of the lower mounting shaft (33). A cutting blade (343) for cutting non-woven fabric is detachably connected between the upper mounting base (341) and the lower mounting base (342). The cutting blade (343) faces the upper edge of the inner end of the support plate (2), and there is a micro gap between the cutting blade (343) and the upper edge of the inner end of the support plate (2). The support plate (2) is hinged to the mounting frame (1) at one end corresponding to the cutting mechanism (3), and the mounting frame (1) is provided with an angle adjustment structure (5) at the other end corresponding to the support plate (2) that can drive the support plate (2) to flip upward. The angle adjustment structure (5) includes an adjustment screw (51) arranged along the length of the mounting frame (1). Both ends of the adjustment screw (51) are rotatably connected to the mounting frame (1). The screw body of the adjustment screw (51) is threaded with a threaded slider (52). The upper end of the threaded slider (52) is hinged with a support rod (53) that is inclined vertically. The upper end of the support rod (53) is hinged to the lower plate surface of the support plate (2) away from the cutting mechanism (3).

2. The PP or PET spunbond hydroentangled nonwoven fabric slitting machine according to claim 1, characterized in that: The upper mounting shaft (32) and the lower mounting shaft (33) are both provided with positioning grooves along their length direction. The upper mounting seat (341) and the lower mounting seat (342) are both provided with positioning protrusions that match the width of the groove opening at the corresponding positioning groove.

3. A PP or PET spunbond hydroentangled nonwoven fabric slitting machine according to claim 2, characterized in that: The locking component is a locking bolt. The end of the locking bolt thread passes through the corresponding mounting base and the positioning protrusion in the mounting base. The end face of the locking bolt thread abuts against the bottom of the positioning groove in the corresponding mounting shaft. The locking bolt thread is threadedly engaged with the corresponding mounting base and the positioning protrusion in the mounting base.

4. A PP or PET spunbond hydroentangled nonwoven fabric slitting machine according to claim 1, characterized in that: Both the upper mounting shaft (32) and the lower mounting shaft (33) are provided with scales that can measure the lateral position of the upper mounting seat (341) and the lower mounting seat (342) respectively.

5. A PP or PET spunbond hydroentangled nonwoven fabric slitting machine according to claim 1, characterized in that: The L-shaped mounting bracket (31) has a vertical groove (311) on its vertical side. The vertical groove (311) has a slider (312) that slides up and down in the groove cavity. The slider (312) is rotatably connected to a support plate (2) and can abut against a pressure roller (313) that is fitted on the upper surface of the support plate (2). A vertical compression spring (314) is provided between the top wall of the vertical groove (311) and the slider (312).

6. A PP or PET spunbond hydroentangled nonwoven fabric slitting machine according to claim 1, characterized in that: The conveying mechanism (4) includes two columns (41) located on both sides of one end of the mounting frame (1) away from the support plate (2). A lower roller (42) and an upper roller (43) located above the lower roller (42) and used to squeeze the slit nonwoven fabric on the lower roller (42) are rotatably connected between the two columns (41). A drive motor (44) for driving the lower roller (42) to rotate is provided on the outside of one of the columns (41).

7. A PP or PET spunbond hydroentangled nonwoven fabric slitting machine according to claim 1, characterized in that: A bracket (45) is provided on the outside of the column (41) which is not connected to the drive motor (44). The bracket (45) is provided with an encoder device (46), and the output shaft of the encoder device (46) is coaxially connected to the end of the lower roller (42) on the same side through a coupling.

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