Polyamide empty filament cutting device and cutting process thereof

Abstract

The present application provides a kind of nylon empty package silk cutting equipment and its cutting process, it is related to nylon fiber processing technical field, including: cutting stand, lift frame is movably connected in front of cutting stand, rotary seat is rotatably connected in left of lift frame, the wire guide structure is installed in front of rotary seat, the nylon tow cutting equipment in the present application realizes the accurate synchronous cutting of multiple wire bundles, by setting the upper and lower symmetric driven cutter and driven cutter, and using a linkage gear simultaneously engages the tooth pattern of different orientation in two blades, under the drive of single electromagnetic push cylinder, upper and lower blades can instantaneously, synchronously move to opposite direction, complete the synchronous shearing of multiple wire bundles, solve the problem that multiple cake share a group of cutters for wire bundle cutting during roll change, during wire bundle cutting process, sequentially cut wire bundle at different positions with the movement of cutting knife, which leads to the cutting of wire bundle is not synchronous enough, affect the uniformity of cake winding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nylon fiber processing, and particularly relates to a nylon empty package silk cutting device and a cutting process thereof. BACKGROUND

[0002] Nylon empty package silk is widely used in the fields of textiles, home textiles, clothing, etc. due to its excellent elasticity, bulkiness and wear resistance. The nylon empty package silk winding machine is a key device in the chemical fiber spinning process, which is responsible for winding the silk bundle cooled and formed in the spinning duct onto the paper tube through the guide roller at a constant and precise tension to form a silk cake with a neat structure, which is beneficial for transportation and unwinding. When the silk cake is wound to the preset length or diameter, the silk cutting action is automatically started, the position of the two paper tube shafts is rotated and switched by the winding machine, the silk bundle contacts the new paper tube, and the cutter is driven to quickly cut off the running silk bundle, thereby realizing seamless switching between full winding and empty tube.

[0003] For a multi-beam synchronous winding machine, a plurality of paper rolls are arranged in series in the same winding shaft. When the winding is changed, a group of cutters is used for cutting the wire bundle. During the wire bundle cutting process, the wire bundle at different positions is sequentially cut by the movement of the cutter, which leads to asynchronous cutting of the wire bundle, affects the uniformity of the silk cake winding, and causes disturbance to the wire bundle due to the transverse feeding direction of the cutter, resulting in entanglement and winding of adjacent wire bundles. SUMMARY

[0004] The present application provides a nylon empty package silk cutting device and a cutting process thereof to solve the problem that for a multi-beam synchronous winding machine, a plurality of paper rolls are arranged in series in the same winding shaft. When the winding is changed, a group of cutters is used for cutting the wire bundle. During the wire bundle cutting process, the wire bundle at different positions is sequentially cut by the movement of the cutter, which leads to asynchronous cutting of the wire bundle, affects the uniformity of the silk cake winding, and causes disturbance to the wire bundle due to the transverse feeding direction of the cutter, resulting in entanglement and winding of adjacent wire bundles.

[0005] The application provides a nylon empty silk cutting device and a cutting process thereof, and specifically comprises a cutting stand, a lifting frame movably connected in front of the cutting stand, and a rotating seat rotatably connected on the left side of the lifting frame.

[0006] Further, the upper guide wire frame is provided with a circular hole structure upper gear insertion hole in the center, and the lower guide wire frame is provided with a circular hole structure lower gear insertion hole in the center.

[0007] Further, the rotating shaft of the linkage gear is provided with a gear rotating shaft lock hole on both sides.

[0008] Further, the rotating shaft of the linkage gear is provided with a gear rotating shaft lock hole on both sides.

[0009] Further, the front wall of the cutting stand is provided with a stand limiting guide opening, the lifting driving element is fixedly connected to the inside bottom of the cutting stand, and the lifting screw is fixedly connected to the rotating shaft of the lifting driving element.

[0010] Further, the lifting frame is fixedly connected with two inner push plates, the reversing driving element is slidably connected in the cutting stand, the inner push plate is provided with a spiral push hole in the center, and the spiral push hole is spirally connected with the lifting driving element.

[0011] Further, the left side of the lifting frame is connected with a reversing driving member, and the reversing driving member is connected with and drives a reversing worm.

[0012] Further, the right end rotating shaft of the rotating seat is rotatably connected with the lifting frame through a bearing, and the right end rotating shaft of the rotating seat is fixedly connected with a reversing worm gear, the reversing worm gear is located on the right side of the lifting frame, and the reversing worm gear is meshingly connected with the reversing worm.

[0013] Further, the right end of the driving cutter is upwardly bent, the bent part of the driving cutter is connected with the right end of the push rod of the cutting electromagnetic push cylinder through bolts, and the driving cutting edge and the driven cutting edge are polished with cutting edges.

[0014] The present application provides a nylon empty silk cutting equipment and a cutting process thereof, which has the following beneficial effects:

[0015] The nylon tow cutting equipment in the present application realizes precise synchronous cutting of multiple wire bundles, the driving cutter and the driven cutter are symmetrically arranged upward and downward, and a linkage gear is used to mesh with different tooth patterns of the two blades in different directions, so that the upward and downward blades can move in opposite directions instantaneously and synchronously under the driving of a single electromagnetic push cylinder, the synchronous cutting of multiple wire bundles is completed, the problems of tension change and uneven winding of each wire bundle caused by sequential cutting in the traditional equipment are solved, the smoothness and accuracy of the change of wire bundles between different wire drums are improved, and the forming quality of the wire drum silk cake is improved.

[0016] The upward and downward wire guide frames are designed to integrate guiding, bundling and cutting functions, the flared silk collecting port can smoothly guide the wire into the precise cutting port, and the opposite cutting mode of the cutting type is consistent with the direction of the wire tension, so that the pushing and disturbance of the transverse cutting on the wire are avoided, and the risk of entanglement or winding of adjacent wires at the cutting moment is reduced.

[0017] The linkage gear shaft is fixed in the upper wire guide frame and the lower wire guide frame through the lower lock plate and the gear directional frame, the synchronous meshing connection precision with the driving tooth pattern and the driven tooth pattern is maintained, the linkage gear is pulled out upward after the lock plug and the gear shaft lock plug are separated by pushing the lower lock plate, and the bolts at the end of the driving cutter and the end of the cutting electromagnetic push cylinder are disassembled, so that the driving cutter and the driven cutter can be pulled out from the inside of the two blade sliding grooves, and the replacement and maintenance of the blades are simple and fast.

[0018] Through the cooperation of the cutting stand, the lifting frame and the rotating seat, the positions and directions of the upper wire guide frame, the lower wire guide frame and the blades can be quickly adjusted under the action of a series of transmission structures, and the best cutting angle and wire bundle convergence angle are adjusted, and after the wire cutting is completed, the wire drum can be moved away to avoid the contact between the wire and the cutting equipment during the winding process, so that the winding failure is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description are merely related to some embodiments of the present application, but not limit the present application.

[0021] In the drawings:

[0022] Figure 1 A schematic diagram showing the overall structure of the present application is shown;

[0023] Figure 2 A schematic diagram showing the structure of the present application cutting device working in combination with a multi-roll winding machine is shown;

[0024] Figure 3 A schematic diagram showing the structure of the present application from the right perspective is shown; Figure 2

[0025] Figure 4 A schematic diagram showing the structure of the present application cutting stand and lifting frame separated is shown;

[0026] Figure 5 A schematic diagram showing the structure of the present application lower guide frame bottom is shown;

[0027] Figure 6 A schematic diagram showing the structure of the present application upper guide frame and lower guide frame separated is shown;

[0028] Figure 7 A schematic diagram showing the structure of the present application linkage gear extracted is shown;

[0029] Figure 8 A schematic diagram showing the structure of the present application active cutter and driven cutter in the state of adhesion is shown;

[0030] Figure 9 A schematic diagram showing the structure of the present application active cutter and driven cutter in the state of separation is shown;

[0031] Figure 10 A schematic diagram showing the structure of the present application lower lock plate is shown;

[0032] Figure 11 A schematic diagram showing the structure of the present application from the perspective of A is shown; Figure 3

[0033] Figure 12 A schematic diagram showing the structure of the present application from the perspective of B is shown; Figure 5

[0034] A schematic diagram showing the structure of the present application from the perspective of C is shown. Figure 13 Figure 8 A schematic diagram showing the structure of the present application from the perspective of C is shown.​​​

[0035] Reference signs:

[0036] 1, cutting stand; 101, stand limiting guide; 102, lifting driving part; 103, lifting screw; 2, lifting frame; 201, inner push plate; 202, screw push hole; 203, reversing driving part; 204, reversing worm; 3, rotating seat; 301, reversing worm wheel; 4, upper wire guide frame; 401, upper wire collecting port; 402, upper wire cutting port; 403, driving blade sliding groove; 404, upper gear insertion port; 405, directional guide column; 5, lower wire guide frame; 501, lower wire collecting port; 502, lower wire cutting port; 503, driven blade sliding groove; 504, lower gear insertion port; 505, lock plate frame; 506, lower lock plate; 507, lock plate tension spring; 508, locking insertion port; 6, driving cutter; 601, gear driving insertion port; 602, driving tooth pattern; 603, driving shearing port; 7, driven cutter; 701, gear driven insertion port; 702, driven tooth pattern; 703, driven shearing port; 8, linkage gear; 801, gear rotating shaft locking port; 802, gear directional frame; 803, directional insertion port; 9, cutting electromagnetic push cylinder. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0038] Embodiment one: please refer to Figures 1 to 13 :

[0039] The present application provides a nylon empty package silk cutting equipment and its cutting process, which comprises a cutting stand 1, a lifting frame 2 movably connected in front of the cutting stand 1, a rotating seat 3 rotatably connected on the left side of the lifting frame 2, a guide wire structure installed in front of the rotating seat 3, the guide wire structure being formed by connecting an upper guide wire frame 4 and a lower guide wire frame 5, an upper silk collecting port 401 with a flared structure being formed on the front edge of the upper guide wire frame 4, an upper cutting silk port 402 being formed on the inner end of the upper silk collecting port 401, a lower silk collecting port 501 with a flared structure being formed on the front edge of the lower guide wire frame 5, a lower cutting silk port 502 being formed on the inner end of the lower silk collecting port 501, a main driven blade sliding groove 403 being formed on the lower surface of the upper guide wire frame 4, a main driven cutter 6 being slidably connected in the main driven blade sliding groove 403, a main driven shearing port 603 being formed on the front edge of the main driven cutter 6, a driven blade sliding groove 503 being formed on the upper surface of the lower guide wire frame 5, a driven cutter 7 being slidably connected in the driven blade sliding groove 503, a driven shearing port 703 being formed on the front edge of the driven cutter 7, a rectangular gear main driven port 601 being formed in the center of the main driven cutter 6, a main driven tooth 602 being formed on the front edge of the gear main driven port 601, a rectangular gear driven port 701 being formed in the center of the driven cutter 7, a driven tooth 702 being formed on the rear edge of the gear driven port 701, a linkage gear 8 being arranged in the gear main driven port 601 and the gear driven port 701, the main driven tooth 602 and the driven tooth 702 being engaged with the linkage gear 8, and a pushing rod of a cutting electromagnetic push cylinder 9 being connected with the main driven cutter 6. When the roll is changed, the winding machine rotates the paper tube with a full load silk cake forward and downward by rotating the disc, rotates the rotating shaft with an empty load paper tube upward and backward, and switches the position with another rotating shaft, so that the silk bundle in the winding process passes through the empty load supporting tube and the guide wire structure composed of the upper guide wire frame 4 and the lower guide wire frame 5, and enters the upper cutting silk port 402 and the lower cutting silk port 502 under the action of the upper silk collecting port 401 and the lower silk collecting port 501. By arranging the main driven cutter 6 and the driven cutter 7 symmetrically upward and downward, and by using a linkage gear 8 to engage the tooth patterns in the two blades with different directions at the same time, the main driven cutter 6 is pulled to the left under the drive of the cutting electromagnetic push cylinder 9, the main driven cutter 6 slides to the left while driving the linkage gear 8 to rotate through the main driven tooth 602, the linkage gear 8 drives the driven cutter 7 to move in the direction opposite to the moving direction of the main driven cutter 6 through the gear engagement with the driven tooth 702, and the main driven shearing port 603 and the driven shearing port 703 are quickly changed to the staggered state. The main driven cutter 6 and the driven cutter 7 can quickly and synchronously move in opposite directions, and the nylon silk bundle in the cutting port is sheared through the shearing cooperation of the main driven shearing port 603 and the driven shearing port 703, realizing the function of synchronous shearing of multiple silk bundles, and further improving the smoothness of the roll change between different wire tubes.

[0040] In the embodiments of the present disclosure, the upper guide frame 4 is provided with an upper gear socket 404 with a circular hole structure at the center, the lower guide frame 5 is provided with a lower gear socket 504 with a circular hole structure at the center, the linkage gear 8 is coaxial with the upper gear socket 404 and the lower gear socket 504, the linkage gear 8 is located at the center of the circular hole formed by the butt joint of the upper gear socket 404 and the lower gear socket 504, one gear shaft lock 801 is arranged on each side of the rotating shaft of the linkage gear 8, the lower surface of the lower guide frame 5 is fixedly connected with a lock plate frame 505, the lock plate frame 505 is slidably connected with a lower lock plate 506 inside, the rear end of the lower lock plate 506 is fixedly connected with a lock plate tension spring 507, the front end of the lock plate tension spring 507 is fixedly connected with the lock plate frame 505, the front end of the lower lock plate 506 is provided with a locking socket 508, the inner edge of the locking socket 508 is matched with the gear shaft lock 801, in the normal state, the linkage gear 8 rotating shaft is axially and circumferentially locked through the butt joint between the locking socket 508 and the gear shaft lock 801, the upper end of the rotating shaft of the linkage gear 8 is fixedly connected with a gear directional frame 802, two directional sockets 803 are arranged at the bottom of the gear directional frame 802, two cylindrical protrusion structure directional guide columns 405 are fixedly connected to the upper surface of the upper guide frame 4, the directional guide columns 405 are movably inserted into the directional sockets 803, in the normal state, the rotating shaft of the linkage gear 8 is radially fixed through the insertion of the directional guide columns 405 and the directional sockets 803, cooperates with the lower end of the lower lock plate 506, realizes the locking of the rotating shaft of the linkage gear 8, keeps the position of the linkage gear 8 locked, makes the linkage gear 8, the driving tooth 602 and the driven tooth 702 form a gear rack transmission, when the blade is disassembled for maintenance, the lower lock plate 506 is pushed backward, the locking socket 508 is separated from the gear shaft lock 801, the gear directional frame 802 is pulled up, the disassembly of the linkage gear 8 is completed, the right end of the driving cutter 6 is upwardly bent and processed, the bent part of the driving cutter 6 is connected with the right end of the push rod of the cutting electromagnetic push cylinder 9 through bolts, the driving cutting edge 603 and the driven cutting edge 703 are ground with cutting edges, when the driving cutter 6 is disassembled, the end bolt of the cutting electromagnetic push cylinder 9 of the bent part of the right end of the driving cutter 6 is disassembled, after the linkage gear 8 is disassembled, the driving cutter 6 and the driven cutter 7 can be linearly pulled away to the right, thus the quick disassembly of the driving cutter 6 and the driven cutter 7 is completed.

[0041] In the embodiment two, on the basis of the embodiment one, the cutting stand 1 is provided with a stand limiting guide 101 on the front wall, the cutting stand 1 is fixedly connected with a lifting driving part 102 at the bottom inside, the lifting driving part 102 is fixedly connected with a lifting lead screw 103 at the rotating shaft, the lifting frame 2 is fixedly connected with two inner push plates 201, a reversing driving part 203 is slidingly connected inside the cutting stand 1, the inner push plate 201 is provided with a spiral push hole 202 at the center, and the spiral push hole 202 is spirally connected with the lifting driving part 102; the lifting lead screw 103 is driven to rotate by the lifting driving part 102, the lifting frame 2 is driven to vertically move by the spiral transmission between the lifting lead screw 103 and the spiral push hole 202, thereby controlling the cutting direction height, the left side of the lifting frame 2 is connected with the reversing driving part 203, the reversing driving part 203 is connected and driven with a reversing worm 204 at the rotating shaft, the right end rotating shaft of a rotating seat 3 is rotatably connected with the lifting frame 2 through a bearing, the right end rotating shaft of the rotating seat 3 is fixedly connected with a reversing worm wheel 301, the reversing worm wheel 301 is located at the right side of the lifting frame 2, and the reversing worm wheel 301 is meshingly connected with the reversing worm 204; the reversing worm 204 is driven to rotate by the reversing driving part 203, the reversing worm 204 and the reversing worm wheel 301 are connected to form a worm and gear transmission, thereby adjusting the orientation slope of the upper collecting hole 401 and the lower collecting hole 501, and adjusting the optimal cutting angle.

[0042] The working principle of the embodiment is as follows: firstly, when the roll is changed, the winder provided with the cutting device is rotated by rotating the disc to rotate the paper tube provided with the full-load bobbin forward and downward, rotate the rotating shaft provided with the empty paper tube backward and upward, switch the position with the other rotating shaft, and make the fiber bundle in the winding process close to the empty paper tube, pass through the guide structure composed of the upper guide 4 and the lower guide 5, and enter the upper cutting port 402 and the lower cutting port 502 under the action of the upper fiber collecting port 401 and the lower fiber collecting port 501. Through the external "threading device", the running fiber bundle is accurately "captured" and guided to the surface of the new paper tube by means of compressed air negative pressure or mechanical method, and the fiber bundle is adsorbed by the special groove or rough surface of the new paper tube and starts to be wound on the new paper tube. At the same time, the cutting electromagnetic push cylinder 9 is retracted, the driving cutter 6 is pulled to the left, the driving cutter 6 slides to the left, and the driving gear 602 drives the linkage gear 8 to rotate. The linkage gear 8 drives the driven gear 702 through gear meshing, drives the driven cutter 7 to move in the direction opposite to that of the driving cutter 6, makes the driving cutting port 603 and the driven cutting port 703 quickly change to the staggered state, and shears the nylon fiber bundle in the cutting port through the shearing cooperation of the driving cutting port 603 and the driven cutting port 703, realizes the function of synchronous shearing of multiple fiber bundles; after the shearing of the fiber bundle is completed, the lifting drive 102 drives the lifting lead screw 103 to rotate, and the lifting frame 2 is lowered away from the paper tube in the winding process through the screw transmission between the lifting lead screw 103 and the spiral push hole 202; when the cutting blade is disassembled for maintenance, the lower locking plate 506 is pushed backward to separate the locking socket 508 from the gear shaft locking socket 801, the gear directional frame 802 is pulled upward to disassemble the linkage gear 8, the end bolt of the cutting electromagnetic push cylinder 9 is disassembled, the driving cutter 6 and the driven cutter 7 are linearly separated to the right, and the driving cutter 6 and the driven cutter 7 are quickly disassembled.

[0043] In this paper, the following points need attention:

[0044] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0045] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0046] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A nylon loose-end filament cutting apparatus comprising: Cutting stand (1), lifting frame (2) movably connected in front of cutting stand (1), rotating seat (3) rotatably connected on the left side of lifting frame (2), the rotating seat (3) is provided with a wire guide structure in front of it, characterized in that the wire guide structure is combined and formed by the combination of upper wire guide frame (4) and lower wire guide frame (5), a plurality of upper wire collecting ports (401) with flared structure are formed in the front edge of the upper wire guide frame (4), and an upper wire cutting port (402) is formed in the inner end of the upper wire collecting port (401), a plurality of lower wire collecting ports (501) with flared structure are formed in the front edge of the lower wire guide frame (5), and a lower wire cutting port (502) is formed in the inner end of the lower wire collecting port (501), a driving blade sliding groove (403) is formed in the lower surface of the upper wire guide frame (4), a driving cutter (6) is slidably connected in the driving blade sliding groove (403), a plurality of driving shearing ports (603) are formed in the front edge of the driving cutter (6), a driven blade sliding groove (503) is formed in the upper surface of the lower wire guide frame (5), a driven cutter (7) is slidably connected in the driven blade sliding groove (503), a plurality of driven shearing ports (703) are formed in the front edge of the driven cutter (7), a rectangular gear driving socket (601) is formed in the center of the driving cutter (6), a driving gear (602) is arranged on the front edge of the gear driving socket (601), a rectangular gear driven socket (701) is formed in the center of the driven cutter (7), a driven gear (702) is arranged on the rear edge of the gear driven socket (701), the driving gear (602) and the driven gear (702) are engaged with the linkage gear (8), the driving cutter (6) is connected with the push rod of the cutting electromagnetic push cylinder (9), and the driving shearing port (603) and the driven shearing port (703) are located between the upper wire cutting port (402) and the lower wire cutting port (502).

2. A nylon loose tow cutting apparatus according to claim 1, wherein, The upper wire guide frame (4) is provided with an upper gear socket (404) with a circular hole structure in the center, the lower wire guide frame (5) is provided with a lower gear socket (504) with a circular hole structure in the center, and the linkage gear (8) is coaxial with the upper gear socket (404) and the lower gear socket (504).

3. A nylon loose tow cutting apparatus according to claim 2, wherein, A gear shaft lock port (801) is formed on both sides of the rotating shaft of the linkage gear (8), a lock plate frame (505) is fixedly connected to the lower surface of the lower wire guide frame (5), a lower lock plate (506) is slidably connected in the lock plate frame (505), a lock plate tension spring (507) is fixedly connected to the rear end of the lower lock plate (506), the front end of the lock plate tension spring (507) is fixedly connected to the lock plate frame (505), and a locking socket (508) is formed in the front end of the lower lock plate (506).

4. A nylon loose tow cutting apparatus according to claim 3, wherein, The upper end of the rotating shaft of the linkage gear (8) is fixedly connected with a gear orientation frame (802), and the bottom of the gear orientation frame (802) is provided with two orientation sockets (803); the upper surface of the upper guide frame (4) is fixedly connected with two cylindrical lug structure orientation guide columns (405), and the orientation guide columns (405) are movably inserted into the orientation sockets (803).

5. A nylon loose tow cutting apparatus according to claim 1 wherein, The front wall of the cutting stand (1) is provided with a stand limiting guide opening (101), and the inside bottom of the cutting stand (1) is fixedly connected with a lifting driving element (102), and the rotating shaft of the lifting driving element (102) is fixedly connected with a lifting lead screw (103).

6. A nylon loose tow cutting apparatus according to claim 5, wherein, The lifting frame (2) is fixedly connected with two inner push plates (201), and a reversing driving element (203) is slidingly connected in the inside of the cutting stand (1); the center of the inner push plate (201) is provided with a spiral push hole (202), and the spiral push hole (202) is spirally connected with the lifting driving element (102).

7. A nylon loose tow cutting apparatus according to claim 6, wherein, The left side of the lifting frame (2) is connected with a reversing driving element (203), and the rotating shaft of the reversing driving element (203) is connected with and drives a reversing worm (204).

8. A nylon loose tow cutting apparatus according to claim 7, wherein, The right end rotating shaft of the rotating seat (3) is rotatably connected with the lifting frame (2) through a bearing, and the right end rotating shaft of the rotating seat (3) is fixedly connected with a reversing worm wheel (301); the reversing worm wheel (301) is located on the right side of the lifting frame (2), and the reversing worm wheel (301) is meshingly connected with the reversing worm (204).

9. A nylon loose tow cutting apparatus according to claim 1 wherein, The right end of the active cutter (6) is upwardly bent, and the bent part of the active cutter (6) is connected with the right end of the push rod of a cutting electromagnetic push cylinder (9) through bolts; the edges of the active cutting opening (603) and the driven cutting opening (703) are polished to have cutting edges.

10. A cutting process of a nylon loose-end filament cutting apparatus according to any one of claims 1 to 9, characterized in that, The steps include the following:

01. First, the winding machine provided with the cutting device is rotated by a rotating disc to rotate the paper tube provided with a full-load bobbin forward and downward, rotate the rotating shaft provided with an empty-load paper tube backward and upward, switch positions with another rotating shaft, and make the fiber in the winding process close to the empty-load paper tube and pass through the guide structure composed of the upper guide frame (4) and the lower guide frame (5) to make the fiber enter the upper cutting opening (402) and the lower cutting opening (502) under the action of the upper fiber collecting opening (401) and the lower fiber collecting opening (501); 02. The running fiber is "caught" and guided to the surface of the new paper tube by the "head forming device", and the fiber is adsorbed by the special groove or rough surface of the new paper tube and starts to be wound on the new paper tube; 03. The active cutter (6) is pulled to the left by controlling the contraction of the cutting electromagnetic push cylinder (9); 04. The active cutter (6) slides to the left while driving the linkage gear (8) to rotate through the active tooth pattern (602), the linkage gear (8) drives the driven cutter (7) to move in the direction opposite to that of the active cutter (6) through gear meshing, and the active cutting opening (603) and the driven cutting opening (703) are quickly changed to the staggered state; 05. The nylon fiber located in the cutting opening is cut through the cutting edge cutting cooperation of the active cutting opening (603) and the driven cutting opening (703), and thus the synchronous cutting process of multiple fibers is completed.

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