A slitting machine with quick-release cutter for nonwoven fabric slitting

Abstract

The application discloses a slitting machine for non-woven fabric slitting quick-release cutters, which comprises a slitting machine body, a lifting box, a slitting cutter slot, a slitting cutter, a quick-release mechanism and a positioning mechanism. The quick-release mechanism comprises a plurality of insertion holes, a plurality of insertion columns, a pair of extrusion blocks, a pair of sliding frames, a gear driving mechanism, a plurality of connecting rods, a pair of vertical grooves, a pair of turnover rods, a pair of transmission mechanisms and a pressing plate. Through the above technical scheme, in daily use, the gear driving mechanism is used to control the pair of sliding frames to move away from or close to each other, so that the pair of extrusion blocks move close to or away from each other, and the lower ends of the pair of turnover rods move close to or away from the slitting cutter slot, thereby achieving the fixing or releasing of the slitting cutter.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric manufacturing equipment, and more specifically to a slitting machine with a quick-release blade for slitting nonwoven fabric. Background Technology

[0002] A nonwoven fabric slitting machine is a mechanical device that cuts wide nonwoven fabric into multiple narrow strips. It mainly includes a frame, unwinding section, cutting section, main machine, guide roller section, and winding section. It is widely used in industries such as hygiene products, medical supplies, packaging materials, and household goods.

[0003] The main methods for installing blades in non-woven fabric slitting machines are as follows:

[0004] Bolt-fixed installation: In this installation method, the tool is first fitted into the corresponding position on the tool shaft or tool holder, and then the bolt is passed through the mounting hole on the tool and engaged with the threaded hole on the tool shaft or tool holder. The tool is fixed by tightening the bolt.

[0005] Slot and block installation: Typically, a slot is provided on the tool shaft or tool holder, and a corresponding block is provided on the tool. During installation, align the block on the tool with the slot on the tool shaft or tool holder, and then push the tool in along the direction of the slot until the block is fully engaged, thus securing the tool. Some slot and block installation methods may also include locking devices, such as screws or pins. After the block is engaged in the slot, tightening the screw or inserting the pin further secures the tool and prevents it from loosening.

[0006] To prevent the cutting tool from loosening, a special tool is needed to apply a specified torque to the screw, which is inconvenient for disassembly and assembly and makes it difficult to quickly replace dull cutting tools. Summary of the Invention

[0007] The present invention aims to solve one of the technical problems existing in the prior art.

[0008] This application provides a slitting machine for nonwoven fabric slitting with a quick-release blade, including a slitting machine body, a lifting box, a slitting blade groove, a slitting blade, a quick-release mechanism, and a positioning mechanism. The quick-release mechanism includes:

[0009] Several insertion holes are spaced apart on the slitting blade;

[0010] Several insertion posts are fixed at intervals on the inner side wall of the slitting blade groove and are inserted into each insertion hole;

[0011] A pair of extrusion blocks are slidably mounted at both ends of the slitting blade groove;

[0012] A pair of sliding frames are slidably installed in the inner cavity of the lifting box, and their relative movement is controlled by a gear drive mechanism. They are connected to the adjacent extrusion block by a connecting rod.

[0013] A pair of vertical slots are symmetrically arranged on the front side wall of the lifting box, with the lower end open and the upper end bent inward to connect to the inner cavity of the lifting box.

[0014] A pair of flipping rods are hinged in the middle and installed in the vertical slot, with the top extending into the inner cavity of the lifting box and connected to the corresponding sliding frame through a transmission mechanism.

[0015] The pressure plate is fixed to the lower end of a pair of flipping rods and can enter the slitting knife groove;

[0016] When a pair of sliding frames move away from or near each other, a pair of extrusion blocks move near or away from each other, and the lower ends of a pair of flipping rods move near or away from the slitting groove.

[0017] The sliding frame includes:

[0018] A rack and pinion mechanism that meshes with a gear drive mechanism for transmission.

[0019] The transmission frame is fixed to one end of the rack, is U-shaped and has a horizontal outward opening;

[0020] One end of the connecting rod is fixedly connected to the end of the rack away from the transmission frame, and the other end passes through the through slot to exit the lifting box and is fixedly connected to the top surface of the corresponding extrusion block.

[0021] The transmission mechanism includes:

[0022] A pair of inclined slots are symmetrically arranged on the inner wall of the opposite side of the transmission frame;

[0023] A spherical connector is rotatably mounted on the inner end of the flipping rod;

[0024] The connecting rod is slidably inserted into the spherical connector, and its two ends are slidably installed in a pair of inclined grooves;

[0025] Among them, the distance between the end of the pair of inclined slots near the gear drive mechanism and the vertical slot is greater than the distance between the other end and the vertical slot.

[0026] The gear drive mechanism includes:

[0027] The gears are rotatably mounted in the inner cavity of the lifting box via an inner rotating shaft and mesh with each rack.

[0028] The outer rotating shaft is mounted on the front side wall of the lifting box via a bearing and is coaxial with the inner rotating shaft.

[0029] The friction disc is fixed at the inner end of the outer rotating shaft and drives the transmission by friction with the surface of the gear.

[0030] The gear drive mechanism also includes:

[0031] An annular groove is provided on the rear side wall of the inner cavity of the lifting box, surrounding the inner rotating shaft;

[0032] The return spring is sleeved on the inner rotating shaft, with its two ends abutting against the bottom end of the annular groove and the adjacent end face of the gear, respectively.

[0033] The retaining ring is fixed at the free end of the inner rotating shaft and abuts against the other end face of the gear.

[0034] Several limiting grooves are arranged at intervals along the circumference on the inner circumferential wall of the annular groove;

[0035] A separator, used to separate the continuing-rotating friction disc from the gear that can no longer rotate;

[0036] The inner ring of the gear is slidably fitted onto the inner rotating shaft.

[0037] The number of limiting grooves is an even multiple of the number of teeth on the gear's peripheral wall.

[0038] The separator includes:

[0039] A pair of separation rods are symmetrically fixed on the peripheral wall of the friction disc;

[0040] A pair of arc-shaped separation blocks are fixed at intervals on the edge of the gear facing the friction disc surface. One end has an inclined surface, and the top surface of the other end has a blocking block.

[0041] Positioning mechanisms include:

[0042] A pair of side beams, each with a floating groove at the lower end, are fixed in the slitting machine body and located on both sides of the lifting box;

[0043] A pair of pressure beams are respectively floatingly installed in each floating groove;

[0044] Several lifting control components are installed on the inner wall of each side beam, connected to the corresponding pressure beam, and cooperate with the outer wall of the pressure plate or lifting box to operate.

[0045] Positioning mechanisms also include:

[0046] Several spring grooves are respectively set on the top of each side beam, and the bottom is connected to the corresponding floating groove through through holes;

[0047] Several floating rods, all T-shaped, are slidably installed in each spring groove via floating springs, with their lower ends passing through corresponding through holes and fixed to the top surface of the corresponding pressure beam.

[0048] Each lifting control component is spaced apart between each spring slot.

[0049] The beneficial effects of this invention are as follows:

[0050] 1. Through the setting of several insertion holes, several insertion posts, a pair of extrusion blocks, a pair of sliding frames, a gear drive mechanism, several connecting rods, a pair of flipping rods, pressure plate, rack, transmission frame, several inclined grooves, a pair of ball connectors and a pair of connecting rods, the slitting tool can be quickly fixed in the slitting tool groove, or the slitting tool can be quickly removed from the slitting tool groove, which is convenient for workers to replace the slitting tool and improve maintenance efficiency;

[0051] 2. Through the setting of gears, inner rotating shaft, outer rotating shaft, friction disc, ring groove, spring, retaining ring, several limiting grooves, a pair of separating rods, a pair of arc-shaped separating blocks, a pair of inclined surfaces and a pair of blocking blocks, the cutting tool is fixed after the pressure plate and a pair of extrusion blocks are pressed together with the cutting tool, thereby improving the fixing effect of the cutting tool.

[0052] 3. By setting up a pair of side beams, a pair of floating grooves, a pair of pressure beams, several spring grooves, several floating rods, several floating springs and several lifting control components, when the slitting cutter descends / rises, it fixes both ends of the nonwoven fabric / releases the fixation of the nonwoven fabric. In addition, due to the setting of the lifting control components, the lifting stroke of the slitting cutter is shortened, which can effectively improve the slitting efficiency. Attached Figure Description

[0053] Figure 1 This is a perspective view of a slitting machine with a quick-release blade for slitting nonwoven fabric in an embodiment of this application;

[0054] Figure 2 This is a perspective view of the quick-release mechanism and positioning mechanism in the embodiments of this application;

[0055] Figure 3 This is a perspective view of the internal structure of the quick-release mechanism in the embodiments of this application;

[0056] Figure 4 for Figure 3 A magnified view of the structure at point A in the middle;

[0057] Figure 5 This is a schematic diagram of the gear drive mechanism structure in an embodiment of this application;

[0058] Figure 6 This is a cross-sectional view of the gear drive mechanism in an embodiment of this application;

[0059] Figure 7 This is a perspective view of the internal structure of the positioning mechanism in the embodiments of this application;

[0060] Figure 8 This is a cross-sectional view of the positioning mechanism in an embodiment of this application (in its engagement with the lifting box after the slitting cutter has been installed);

[0061] Figure 9 This is a cross-sectional view of the part where the floating rod and the spring groove meet in an embodiment of this application.

[0062] Figure Labels

[0063] 1-Slitting machine body, 2-Lifting box, 3-Slitting blade groove, 4-Slitting blade, 5-Quick release mechanism, 51-Insertion hole, 52-Insertion post, 53-Extrusion block, 54-Sliding frame, 541-Rack, 542-Transmission frame, 543-Through groove, 55-Connecting rod, 56-Vertical groove, 57-Tilting rod, 58-Pressure plate, 6-Positioning mechanism, 61-Side beam, 62-Floating groove, 63-Pressure beam, 64-Spring groove, 65-Floating rod, 66-Floating spring, 67-Through hole, 7-Gear drive mechanism, 71-Gear, 72-Inner rotating shaft, 73-Outer 74-Friction disc, 75-Ring groove, 76-Reset spring, 77-Stop ring, 78-Restriction groove, 8-Transmission mechanism, 81-Inclined groove, 82-Spherical connector, 83-Connecting rod, 9-Separator, 91-Separator rod, 92-Arc-shaped separator block, 93-Inclined surface, 94-Blocking block, 10-Lifting control component, 101-Lifting control cavity, 102-Bidirectional screw, 103-Side groove, 104-Fan-shaped flip block, 105-Push spring, 106-Guide rod, 107-Push swing arm, 108-Screw sleeve, 109-Transmission groove. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0065] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0066] The slitting machine for nonwoven fabric slitting with quick-release blades provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0067] Example 1:

[0068] like Figures 1 to 9As shown in the embodiment of this application, a slitting machine for nonwoven fabric slitting with a quick-release blade is provided, including a slitting machine body 1, a lifting box 2, a slitting blade groove 3, a slitting blade 4, a quick-release mechanism 5, and a positioning mechanism 6. The quick-release mechanism 5 includes a plurality of insertion holes 51, spaced apart on the slitting blade 4; a plurality of insertion posts 52, spaced apart and fixed on the inner sidewall of the slitting blade groove 3, and inserted into each insertion hole 51; a pair of extrusion blocks 53, respectively slidably installed at both ends of the slitting blade groove 3; and a pair of sliding frames 54, slidably installed in the inner cavity of the lifting box 2, whose relative movement is controlled by a gear drive mechanism 7, and which are positioned to interact with adjacent extrusion blocks. Block 53 is connected by connecting rod 55; a pair of vertical slots 56 are symmetrically arranged on the front side wall of the lifting box 2, with the lower end open and the upper end bent inward to connect to the inner cavity of the lifting box 2; a pair of flipping rods 57 are movably installed in the vertical slots 56 through hinges in the middle, and the top end extends into the inner cavity of the lifting box 2, and is connected to the corresponding sliding frame 54 through the transmission mechanism 8; pressure plate 58 is fixed at the lower end of the pair of flipping rods 57, and can enter the slitting groove 3. When the pair of sliding frames 54 move away from each other / approach each other, the pair of pressing blocks 53 approach each other / move away from each other, and the lower ends of the pair of flipping rods 57 approach / move away from the slitting groove 3.

[0069] In this embodiment of the application, due to the above-described structure, when installing the slitting cutter 4, the top of the slitting cutter 4 is placed between the slitting cutter groove 3 and the pressure plate 58, and then pressed into the slitting cutter groove 3. Each insert post 52 is inserted into each insert hole 51 on the slitting cutter 4 until the inner side wall of the top of the slitting cutter 4 abuts against the inner side wall of the slitting cutter groove 3. Then, the gear drive mechanism 7 controls a pair of sliding frames 54 to move away from each other, and pulls a pair of extrusion blocks 53 to move closer to each other through the corresponding pull rods until the adjacent ends of the pair of extrusion blocks 53 abut against both ends of the top of the slitting cutter 4. During this process, each transmission mechanism 8 moves with the movement of the corresponding sliding frame 54, controlling a pair of flipping rods 57 to flip around the hinge. The lower ends of each flipping rod 57 move towards the slitting cutter groove 3 until the inner side wall of the pressure plate 58 abuts against the top side wall of the slitting cutter 4, thus completing the installation of the slitting cutter 4.

[0070] When disassembling the slitting cutter 4, the gear drive mechanism 7 controls a pair of sliding frames 54 to approach each other, and the corresponding pull rod pushes a pair of extrusion blocks 53 away from each other, so that the pair of extrusion blocks 53 are separated from the contact of the two ends of the slitting cutter 4. During this process, each transmission mechanism 8 moves in the opposite direction with the movement of the corresponding sliding frame 54, controlling a pair of flipping rods 57 to flip around the hinge. The lower end of each flipping rod 57 moves away from the slitting cutter groove 3, and the pressure plate 58 also moves away from the slitting cutter 4. Then the slitting cutter 4 is pushed out of the slitting cutter groove 3 until each insertion post 52 is separated from each insertion hole 51, and the slitting cutter 4 can be removed.

[0071] Example 2:

[0072] like Figures 1 to 4As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the sliding frame 54 includes a rack 541, which meshes with the gear drive mechanism 7 for transmission; a transmission frame 542, which is fixed to one end of the rack 541, is U-shaped and has a horizontally outward opening, one end of the connecting rod 55 is fixedly connected to the end of the rack 541 away from the transmission frame 542, and the other end passes through the through groove 543 to exit the lifting box 2 and is fixedly connected to the top surface of the corresponding extrusion block 53.

[0073] Furthermore, the transmission mechanism 8 includes a pair of inclined slots 81 symmetrically arranged on the opposite inner wall of the transmission frame 542; a spherical connector 82 rotatably mounted on the inner end of the flipping rod 57; and a connecting rod 83 slidably passing through the spherical connector 82, with both ends slidably mounted in the pair of inclined slots 81. The distance between the end of the pair of inclined slots 81 near the gear drive mechanism 7 and the vertical slot 56 is greater than the distance between the other end and the vertical slot 56.

[0074] In this embodiment of the application, due to the above-described structure, when the gear drive mechanism 7 rotates forward / reverse, it drives a pair of racks 541 to move, causing a pair of transmission frames 542 to move away from each other / closer to each other. Each connecting rod 55 is installed at the end of each rack 541 away from the transmission frame 542. When the transmission frames 542 move away from each other / closer to each other, the left transmission frame 542 moves to the left / right, and pulls the right pressing block 53 to the left / right through the connecting rod 55. The right transmission frame 542 moves to the right / left, and pulls the left pressing block 53 to the right / left through the corresponding connecting rod 55, so that the pair of pressing blocks 53 move closer to each other / away from each other when the transmission frames 542 move away from each other / closer to each other.

[0075] Furthermore, when a pair of transmission frames 542 move away from each other / approach each other, the pair of inclined grooves 81 on the left and the pair of inclined grooves 81 on the right move away from each other / approach each other. Each connecting rod 83 slides to the other end in the corresponding inclined groove 81, approaching / moving away from the vertical groove 56. Each spherical connector 82 also slides outside the corresponding connecting rod 83 and approaches / moves away from the vertical groove 56 together with the corresponding connecting rod 83, causing the middle part of each flipping rod 57 to flip around the hinge, and the lower end drives the pressure plate 58 to enter / disappear from the slitting knife groove 3, pressing / disappearing from the slitting knife 4.

[0076] Example 3:

[0077] like Figures 5 to 6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the gear drive mechanism 7 includes a gear 71, which is rotatably mounted in the inner cavity of the lifting box 2 via an inner rotating shaft 72 and meshes with each rack 541; an outer rotating shaft 73, which is rotatably embedded in the front side wall of the lifting box 2 via a bearing and is coaxial with the inner rotating shaft 72; and a friction disc 74, which is fixed in the inner end of the outer rotating shaft 73 and performs frictional transmission with the surface of the gear 71.

[0078] Furthermore, the gear drive mechanism 7 also includes an annular groove 75, which is disposed on the rear side wall of the inner cavity of the lifting box 2 and surrounds the inner rotating shaft 72; a return spring 76, which is sleeved on the inner rotating shaft 72, with its two ends abutting against the bottom end of the annular groove 75 and the adjacent end face of the gear 71, respectively; a retaining ring 77, which is fixed on the free end of the inner rotating shaft 72 and abuts against the other end face of the gear 71; a plurality of limiting grooves 78, which are circumferentially spaced on the inner peripheral wall of the annular groove 75; and a separating member 9, which is used to separate the continuing rotating friction disc 74 from the gear 71 that can no longer rotate, with the inner ring of the gear 71 slidingly sleeved on the inner rotating shaft 72.

[0079] Preferably, the number of limiting grooves 78 is an even multiple of the number of teeth on the peripheral wall of gear 71.

[0080] Furthermore, the separating component 9 includes a pair of separating rods 91, symmetrically fixed on the peripheral wall of the friction disk 74; and a pair of arc-shaped separating blocks 92, fixed at intervals on the edge of the gear 71 facing the friction disk 74 surface, with an inclined surface 93 at one end and a blocking block 94 on the top surface of the other end.

[0081] In this embodiment of the application, due to the above-described structure, the outer end of the outer rotating shaft 73 can be provided with an internal hexagonal groove or a fixed handwheel. When an internal hexagonal groove is provided, an internal hexagonal wrench is inserted into the internal hexagonal groove, and the outer rotating shaft 73 is rotated clockwise / counterclockwise. Friction plates are fixed on both the surface of the friction disc 74 and the surface of the gear 71. When the friction disc 74 rotates clockwise / counterclockwise, the gear 71 moves synchronously, controlling the relative movement of a pair of racks 541, so that a pair of transmission frames 542 move away from each other / closer to each other.

[0082] When the outer shaft 73 rotates clockwise, and the ends of the pair of extrusion blocks 53 abut against the top of the left and right sidewalls of the slitting cutter 4, and the pressure plate 58 also abuts against the front sidewall of the slitting cutter 4, the pair of racks 541 can no longer move, and the gear 71 can no longer rotate. Continuing to rotate the outer shaft 73 causes each separating rod 91 to contact the inclined surface 93 of each separating arc-shaped block, and guided by the corresponding inclined surface 93, slides to the top surface of each separating arc-shaped block. During this process, the gear 71 is pushed towards the annular groove 75, the return spring 76 is compressed, and half of the teeth on the outer peripheral wall of the gear 71 engage with part of the limiting groove 78, while the other half remains engaged with each rack 541. This allows the pressure plate 58 and the pair of extrusion blocks to be moved. The position of block 53 is fixed to ensure that the slitting cutter 4 is securely installed. Then, the outer shaft 73 is rotated until each separating rod 91 contacts the blocking block 94 on the corresponding arc-shaped separating block 92. The operator knows that the installation and fixation of the slitting cutter 4 has been completed. Then, if the outer shaft 73 is rotated counterclockwise, each separating rod 91 returns to the lower end of the corresponding inclined surface 93. The reset spring 76 releases elastic potential energy and pushes the gear 71 close to the friction disk 74. The surface of the friction disk 74 can then contact the surface of the gear 71. Continuing to rotate the outer shaft 73 counterclockwise will cause the friction disk 74 and the gear 71 to rotate counterclockwise, causing a pair of transmission frames 542 to move closer to each other. The pressure plate 58 and a pair of extrusion blocks 53 disengage from the slitting cutter 4.

[0083] The number of limiting grooves 78 is several times greater than the number of teeth on the peripheral wall of gear 71 (e.g., 2, 4, 6 times), so that gear 71 can slide into the annular groove 75 when rotating within a very small angle range, and the teeth on the peripheral wall can engage with some of the limiting grooves 78.

[0084] Example 4:

[0085] like Figures 7 to 9 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the positioning mechanism 6 includes a pair of side beams 61, each with a floating groove 62 at its lower end, fixed in the slitting machine body 1, located on both sides of the lifting box 2; a pair of pressure beams 63, which are respectively floatingly installed in each floating groove 62; and a plurality of lifting control components 10, which are respectively installed on the inner side wall of each side beam 61, and are connected to the corresponding pressure beam 63 in a transmission manner, and cooperate with the pressure plate 58 or the outer side wall of the lifting box 2 in action.

[0086] Furthermore, the positioning mechanism 6 also includes several spring grooves 64, which are respectively set on the top of each side beam 61, and the bottom is connected to the corresponding floating groove 62 through the through hole 67; several floating rods 65, all T-shaped, are slidably installed in each spring groove 64 through floating springs 66, and the lower end passes through the corresponding through hole 67 and is fixed to the top surface of the corresponding pressure beam 63.

[0087] Preferably, each lifting control component 10 is spaced apart between each spring groove 64.

[0088] Furthermore, the lifting control component 10 includes a lifting control cavity 101, which is disposed at the top of the floating groove 62; a bidirectional screw 102, the two ends of which are rotatably mounted on the side walls at both ends of the floating groove 62; a side groove 103, which is disposed on the inner side wall of the side beam 61 and communicates with the floating groove 62; a fan-shaped flipping block 104, which is fixed in the middle of the bidirectional screw 102 and movably mounted in the side groove 103, with an outward push spring 105 provided between the inner side wall and the inner end side wall of the floating groove 62; a pair of guide rods 106, which are symmetrically fixed on both sides of the floating groove 62 and perpendicular to the bidirectional screw 102; and a pair of push swing arms 107, the top ends of which are connected to the bidirectional screw 102 through threaded sleeves 108, and the middle parts of which are connected to the guide rods 106 through transmission grooves 109, with each threaded sleeve 108 rotatably connected to the corresponding push swing arm 107.

[0089] In this embodiment of the application, due to the above-described structure, after the installation of the slitting cutter 4 is completed, the lifting box 2 descends until the pressure plate 58 is located between a pair of side beams 61, contacting the outer wall of each sector-shaped flipping block 104. At this time, the outer wall of the pressure plate 58 and the other side wall of the lifting box 2 respectively contact the inner side wall of the side beams 61 on both sides. When cutting non-woven fabric, the lifting box 2, pressure plate 58, and slitting cutter 4 descend together. The lifting box 2 and pressure plate 58 push each sector-shaped flipping block 104 and the corresponding bidirectional screw 102 to rotate. Each sector-shaped flipping block 104 enters the corresponding side groove 103 and the lifting control cavity 101. Each screw sleeve 108 slides towards the outer end of the corresponding bidirectional screw 102, causing each pushing arm 107 to swing. Under the guidance of each guide rod 106 and the corresponding transmission groove 109, the lower end of each pushing arm 107 moves downward, pushing each pressure beam 63 downward. Each floating rod 65 descends, and each floating spring 66 is compressed until a pair of pressure beams... 63. Press the nonwoven fabric to be slit onto the worktable of the slitting machine body 1. Then, the lifting box 2 continues to descend. The outer walls of each sector-shaped flipping block 104 slide and rub against the outer walls of the pressure plate 58 or the outer walls of the lifting box 2 until the slitting blade 4 is slit by the nonwoven fabric held at both ends by a pair of pressure beams 63. The lifting box 2 rises above each side groove 103, and each outward push spring 105 releases its elastic potential energy, pushing each sector-shaped flipping block 104 and the corresponding bidirectional screw 102 to rotate in opposite directions. When the fan-shaped flipping blocks 104 extend out of the side grooves 103, each screw sleeve 108 moves towards the corresponding fan-shaped flipping block 104 on the corresponding bidirectional screw 102, and the upper end of each pushing arm 107 also approaches the corresponding fan-shaped flipping block 104. Under the guidance of each guide rod 106 and the corresponding transmission groove 109, the lower end of each pushing arm 107 is raised, each floating spring 66 releases elastic potential energy, pushes each floating rod 65 to rise, and drives a pair of floating beams to rise upward.

[0090] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0091] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A slitting machine for nonwoven fabric slitting with quick-release cutter, comprising a slitting machine body (1), a lifting box (2), a slitting cutter slot (3), a slitting cutter (4), a quick-release mechanism (5) and a positioning mechanism (6), characterized in that, The quick release mechanism (5) comprises: a plurality of insertion holes (51) are arranged at intervals on the slitting cutter (4); a plurality of insertion columns (52) are arranged at intervals on the inner side wall of the slitting cutter groove (3) and are inserted with each insertion hole (51); a pair of extrusion blocks (53) are respectively slidably installed at both ends of the slitting cutter groove (3); a pair of sliding frames (54) are slidably installed in the inner cavity of the lifting box (2) and are controlled to move relatively by a gear driving mechanism (7) and are connected with adjacent extrusion blocks (53) by a connecting rod (55); a pair of vertical grooves (56) are symmetrically arranged on the front side wall of the lifting box (2), the lower end is open, and the upper end is inwardly bent to communicate with the inner cavity of the lifting box (2); a pair of turnover levers (57) are movably installed in the vertical grooves (56) through hinges at the middle part, the top end extends into the inner cavity of the lifting box (2), and the top end is drivingly connected with the corresponding sliding frame (54) through a transmission mechanism (8); a pressing plate (58) is fixedly arranged at the lower end of the pair of turnover levers (57) and can enter the slitting cutter groove (3); wherein, when the pair of sliding frames (54) move away from each other / approach each other, the pair of extrusion blocks (53) move away from each other / approach each other, and the lower ends of the pair of turnover levers (57) move close to / far away from the slitting cutter groove (3); The positioning mechanism (6) comprises: a pair of side beams (61) are arranged at the lower end of the floating groove (62) and are fixedly arranged in the slitting machine body (1) and are located on both sides of the lifting box (2); a pair of pressing beams (63) are respectively floatingly installed in each floating groove (62); a plurality of lifting control members (10) are respectively installed on the inner side wall of each side beam (61), are drivingly connected with the corresponding pressing beam (63), and are cooperatively operated with the pressing plate (58) or the outer side wall of the lifting box (2); The lifting control member (10) comprises a lifting control cavity (101) arranged at the top of the floating groove (62), a bidirectional screw (102) rotatably installed at both ends of the floating groove (62), a side groove (103) arranged on the inner side wall of the side beam (61) and communicating with the floating groove (62), a fan-shaped turnover block (104) fixedly arranged in the middle part of the bidirectional screw (102) and movably installed in the side groove (103), an outer push spring (105) arranged between the inner side wall of the fan-shaped turnover block (104) and the inner end side wall of the floating groove (62), a pair of guide rods (106) symmetrically fixedly arranged on both sides of the floating groove (62) and perpendicular to the bidirectional screw (102), and a pair of push moving swing arms (107) top-end drivingly connected with the bidirectional screw (102) through a screw sleeve (108), middle-part drivingly connected with the guide rod (106) through a transmission groove (109), and each screw sleeve (108) drivingly connected with the corresponding push moving swing arm (107).

2. The slitting machine of claim 1, wherein the quick release knife is a nonwoven fabric slitting knife. The sliding frame (54) comprises: a rack (541) drivingly engaged with the gear driving mechanism (7); a transmission frame (542) fixedly arranged at one end of the rack (541) and having a U-shaped opening horizontally outward; wherein, one end of the connecting rod (55) is fixedly connected with the rack (541) away from the transmission frame (542), and the other end passes through a through groove (543) out of the lifting box (2) and is fixedly connected with the top surface of the corresponding extrusion block (53).

3. The slitter according to claim 2, wherein The transmission mechanism (8) comprises: A pair of inclined grooves (81) are symmetrically arranged on the opposite inner walls of the transmission frame (542); A spherical connector (82) is rotatably installed at the inner end of the turnover rod (57); A connecting rod (83) is slidably installed in the spherical connector (82) and at both ends of the connecting rod (83) are slidably installed in a pair of inclined grooves (81); Wherein, the distance between a pair of inclined grooves (81) near the gear drive mechanism (7) end and the vertical slot (56) is greater than the distance between the other end and the vertical slot (56).

4. The slitting machine of claim 2, wherein the quick release knife comprises a knife blade and a knife holder, the knife blade being mounted on the knife holder, the knife holder being mounted on the frame, the knife holder being movable between the first position and the second position. The gear drive mechanism (7) comprises: A gear (71) is rotatably installed in the inner cavity of the lifting box (2) through an inner rotating shaft (72) and is engaged with each rack (541); An outer rotating shaft (73) is rotatably embedded on the front side wall of the lifting box (2) through a bearing and is coaxial with the inner rotating shaft (72); A friction disc (74) is fixedly arranged at the inner end of the outer rotating shaft (73) and is frictionally connected with the surface of the gear (71).

5. The slitter according to claim 4, wherein The gear drive mechanism (7) further comprises: A ring groove (75) is arranged on the rear side wall of the inner cavity of the lifting box (2) and surrounds the inner rotating shaft (72); A reset spring (76) is sleeved on the inner rotating shaft (72) and abuts against the bottom end of the ring groove (75) and the adjacent end surface of the gear (71) at both ends; A stop ring (77) is fixedly arranged on the free end of the inner rotating shaft (72) and abuts against the other end surface of the gear (71); A plurality of limiting grooves (78) are arranged on the inner circumferential wall of the ring groove (75) at intervals in the circumferential direction; A separating piece (9) is used to separate the continuously rotating friction disc (74) from the gear (71) which cannot continue to rotate; Wherein, the inner ring of the gear (71) is slidably sleeved on the inner rotating shaft (72).

6. The cutting machine of the quick-release cutter for non-woven fabric slitting according to claim 5, wherein: The number of the limiting grooves (78) is an even multiple of the number of teeth on the circumferential wall of the gear (71).

7. The slitter according to claim 5, wherein The separating piece (9) comprises: A pair of separating rods (91) are symmetrically fixedly arranged on the circumferential wall of the friction disc (74); A pair of arc-shaped separating blocks (92) are fixedly arranged at intervals on the surface edge of the gear (71) facing the friction disc (74), one end of each arc-shaped separating block (92) is provided with an inclined surface (93), and the other end of each arc-shaped separating block (92) is provided with a blocking block (94).

8. The slitter according to claim 7, wherein the quick release knife is a nonwoven fabric slitting knife. The positioning mechanism (6) further comprises: A plurality of spring grooves (64) are respectively arranged at the top and bottom of each side beam (61) and are communicated with the corresponding floating groove (62) through the through hole (67); A plurality of floating rods (65) are all T-shaped and are slidably installed in each spring groove (64) through a floating spring (66), and the lower end of each floating rod (65) penetrates through the corresponding through hole (67) and is fixedly connected with the top surface of the corresponding pressing beam (63).

9. The cutting machine of the quick-release cutter for non-woven fabric slitting according to claim 8, wherein: Each lifting control piece (10) is arranged at intervals between each spring groove (64).

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