Short fiber cutting device

Abstract

The utility model relates to the technical field of fiber cutting and forming, in particular to a short fiber cutting device which comprises a frame body, a supporting plate, a yarn guiding mechanism, a lifting adjusting mechanism, a yarn separating mechanism and a yarn cutting mechanism, the top of the front end of the frame body is provided with an opening, the left end and the right end of the opening of the frame body protrude outwards to form a first protrusion, and the bottom of the rear end of the frame body is also provided with an opening. According to the utility model, through the adoption of the symmetrically arranged wire separating seats, when the inserting plates of the two wire separating seats are inserted into the corresponding pair of limiting groove groups, the pushing springs enable the inserting plates to be limited in the limiting groove groups, the cutting grooves are attached to each other, and the wire separating seats are fixed on the wire separating seats. A cutting space is formed, and cutting forming operation of short fibers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber cutting and molding, in particular to a short fiber cutting device. Background Art

[0002] Short fibers are tows obtained by cutting and processing according to different requirements. They have a wide range of industrial applications. Existing fiber cutting devices have the problem of not being easy to adjust the cutting position and insufficient tow tension, which leads to incomplete fiber cutting and inability to obtain short fiber tows.

[0003] The Chinese patent document with the publication number CN212077215U discloses a fiber fixing device suitable for a fiber cutting machine, which avoids the disadvantage of the fibers being too chaotic and thus entangled in the machine by setting a device to limit the fibers, but does not disclose how to adjust the cutting position;

[0004] The Chinese patent document with the publication number CN212025516U discloses a cutting device for long fiber bundles, which can effectively adjust the length of cut fibers by locking a locking member so that part of the blade does not contact the pressing roller, but does not disclose how to solve the problem of incomplete cutting of short fibers.

[0005] In summary, how to design a staple fiber cutting device so that it is easy to adjust the cutting position and completely cut the fibers has become a problem that needs to be solved at present. Utility Model Content

[0006] The purpose of the utility model is to provide a short fiber cutting device to solve the above problems.

[0007] In order to achieve the above objectives, the following technical solutions are provided:

[0008] A staple fiber cutting device for cutting and forming staple fiber bundles comprises: a frame, a support plate, a wire guiding mechanism, a lifting and adjusting mechanism, a wire dividing mechanism and a wire cutting mechanism, wherein the top of the front end of the frame is opened, and the left and right ends of the opening are protruded outward to form a first protrusion, and the bottom of the rear end of the frame is also opened, and the support plate extends into the frame along the opening at the rear end of the frame and is fixedly connected to the frame, the lifting and adjusting mechanism is arranged at the first protrusion, the wire guiding mechanism includes a movable part, and the lifting and adjusting mechanism is transmission-connected with the movable part of the wire guiding mechanism, thereby driving the wire guiding mechanism to move, the support plate is provided with a plurality of limit groove groups downwardly along its upper surface, the wire dividing mechanism includes two symmetrically arranged parts, both of which are detachably arranged in the limit groove group, and the wire cutting mechanism is arranged at the top of the frame, and is correspondingly located between the two parts of the wire dividing mechanism along the vertical direction.

[0009] Preferably, a pair of limiting groove groups are formed on the left and right sides of the middle part of the support plate. When the two parts of the wire splitting mechanism are respectively limited in the limiting groove groups on the left and right sides, the two symmetrically arranged parts of the wire splitting mechanism are in contact with each other.

[0010] Preferably, the wire guiding mechanism includes a movable plate, a rotating seat, a connecting shaft, a rotating plate and a wire guiding roller. The movable plate is in transmission connection with the lifting adjustment mechanism. A connecting sleeve is further arranged on the rotating seat. The connecting sleeve covers the side wall and the bottom wall of the rotating seat and is fixedly connected with the rotating seat. An ear plate is fixedly connected to the connecting sleeve. Threaded holes are arranged corresponding to each other up and down on the ear plate and the movable plate. The ear plate and the movable plate are detachably connected by bolts.

[0011] Preferably, convex portions are further arranged outward at the left and right ends of the rotating seat. A damping sleeve is sleeved on the convex portion close to the rotating seat. A blocking member is fixedly connected to the convex portion far from the rotating seat. One end of the connecting shaft is sleeved on the convex portion between the damping sleeve and the blocking member and has the freedom to rotate around the convex portion. The other end of the connecting shaft is fixedly connected with the rotating plate. The rotating plate is provided with openings at fixed intervals along its upper surface. A roller shaft is fixedly connected between the left and right ends at the opening of the rotating plate. The wire guiding roller is sleeved on the roller shaft and is used to provide tension for the wire bundle.

[0012] Preferably, the lifting adjustment mechanism includes a rotary knob and a lead screw. The rotary knob is arranged at the top of the first protrusion. The lead screw penetrates through the first protrusion. One end of the lead screw is fixedly connected with the rotary knob, and the other end is in threaded connection with the movable plate.

[0013] Preferably, the wire splitting mechanism includes a sliding seat, a sliding rod, a wire splitting seat, a fixed shaft and a wire splitting plate. The sliding seats are arranged on the left and right sides of the support plate. The sliding rod is arranged along the length direction of the sliding seat, and both ends of the sliding rod are respectively fixed on the inner side walls of the sliding seats. The wire splitting seats are symmetrically arranged on the front and back sides of the support plate. Cutting grooves are formed along the edges of the outer surfaces of the wire splitting seats. The fixed shafts are fixedly connected to the left and right ends of the wire splitting seats. The left and right ends of the wire splitting plate protrude outward and are sleeved on the fixed shafts. The wire splitting plate is provided with wire splitting holes at fixed intervals along its length direction. The wire splitting seats are provided with wire splitting grooves at fixed intervals along their length directions. The positions of the wire splitting holes and the wire splitting grooves correspond to each other front and back. A cross plate is further connected to the bottom of the wire splitting seat. A push spring is fixed between the cross plate and the inner top wall of the wire splitting seat. An insertion plate is fixed to the bottom of the cross plate. The insertion plate is matched with the limiting groove group for limiting the wire splitting seat.

[0014] Preferably, a chute is formed at the top of the frame body. The wire cutting mechanism includes a slider, a top plate, a cylinder, a telescopic rod and a cutting knife. The slider is limited in the chute. The top plate is arranged between the left and right ends at the top of the frame body. A positioning column is further arranged at the top of the slider, and the positioning column penetrates through the top plate. The cylinder is arranged at the top of the top plate, and its output end is in transmission connection with one end of the telescopic rod. The other end of the telescopic rod is fixed to the cutting knife.

[0015] Preferably, when the symmetrically arranged wire splitting seats are attached to each other, a cutting space is formed between the cutting grooves on the two wire splitting seats.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. By adopting symmetrically arranged wire splitting seats, when the insertion plates of the two wire splitting seats are inserted into the corresponding pair of limit groove groups, the push spring keeps them limited in the limit groove groups, and the cutting grooves are attached to each other to form a cutting space, which is convenient for the cutting and forming operation of short fibers.

[0018] 2. Through multiple groups of limit groove groups, the position of the wire splitting seat can be adjusted, and then different cutting positions can be replaced, making the wire cutting mechanism easier to cut the wire bundle.

[0019] 3. The wire bundle first bypasses the wire guiding roller and then enters the cutting device, providing a certain tension for the wire bundle, making the wire bundle easier to be cut. Through the cooperation of the wire guiding mechanism and the lifting and adjusting mechanism, the entering angle and entering height of the wire bundle can be adjusted, which is convenient for tension adjustment. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the frame body and the support plate;

[0022] Figure 3 is a schematic cooperation diagram of the wire guiding mechanism and the lifting and adjusting mechanism;

[0023] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0024] Figure 5 is a schematic structural diagram of the wire splitting mechanism;

[0025] Figure 6 is a schematic structural diagram of the wire cutting mechanism;

[0026] In the figure:

[0027] 1 - frame body, 101 - first protrusion, 102 - chute;

[0028] 2 - Support plate, 201 - Limit groove group;

[0029] 3 - Wire guiding mechanism, 301 - Movable plate, 302 - Rotating seat, 303 - Connecting shaft, 304 - Rotating plate, 305 - Wire guiding roller, 306 - Connecting sleeve, 307 - Ear plate, 308 - Damping sleeve, 309 - Blocking part, 310 - Roller shaft;

[0030] 4 - Lifting and adjusting mechanism, 401 - Rotating knob, 402 - Lead screw;

[0031] 5 - Wire splitting mechanism, 501 - Sliding seat, 502 - Slide bar, 503 - Wire splitting seat, 504 - Fixed shaft, 505 - Wire splitting plate, 506 - Cutting groove, 507 - Wire splitting hole, 508 - Wire splitting groove, 509 - Cross plate, 510 - Push spring, 511 - Insert plate;

[0032] 6 - Wire cutting mechanism, 601 - Slide block, 602 - Top plate, 603 - Cylinder, 604 - Telescopic rod, 605 - Cutting knife, 606 - Positioning column. Detailed implementation mode

[0033] Next, the technical solutions in the schematic diagrams in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Such as Figures 1-6As shown, a staple cutting device is used for cutting and forming staple fiber bundles, comprising: a frame 1, a support plate 2, a wire guiding mechanism 3, a lifting and adjusting mechanism 4, a wire dividing mechanism 5 and a wire cutting mechanism 6. The top of the front end of the frame 1 is opened, and the left and right ends of the opening are protruded outward to form a first protrusion 101. The bottom of the rear end of the frame 1 is also opened, and the support plate 2 extends into the frame 1 along the opening at the rear end of the frame 1 and is fixedly connected to the frame 1. The lifting and adjusting mechanism 4 is arranged at the first protrusion 101. The wire guiding mechanism 3 includes a movable part, and the lifting and adjusting mechanism 4 is transmission-connected to the movable part of the wire guiding mechanism 3. Then, the wire guiding mechanism 3 is driven to move. A plurality of limiting groove groups 201 are opened downwardly along the upper surface of the support plate 2. The wire dividing mechanism 5 includes two symmetrically arranged parts, both of which can be detachably arranged in the limiting groove group 201. The wire cutting mechanism 6 is arranged on the top of the frame, and is correspondingly located between the two parts of the wire dividing mechanism 5 along the vertical direction. By adopting the symmetrically arranged wire dividing seats 503, when the plug plates 511 of the two wire dividing seats 503 are inserted into the corresponding pair of limiting groove groups 201, the push spring 510 keeps them limited in the limiting groove group 201, and the cutting grooves 506 are fitted together to form a cutting space, which is convenient for the cutting and forming operation of the short fibers.

[0035] In some embodiments, a pair of limiting groove groups 201 are provided on the left and right sides of the middle of the support plate 2. When the two parts of the wire-splitting mechanism 5 are respectively limited in the limiting groove groups 201 on the left and right sides, the two symmetrically arranged parts of the wire-splitting mechanism 5 fit together; through multiple groups of limiting groove groups 201, the position of the wire-splitting seat 203 can be adjusted, and then different cutting positions can be changed, so that the wire-cutting mechanism 6 is easier to cut the wire bundle;

[0036] In some embodiments, the wire guiding mechanism 3 includes a movable plate 301, a rotating seat 302, a connecting shaft 303, a rotating plate 304 and a wire guiding roller 305. The movable plate 301 is connected to the lifting and adjusting mechanism 4 in a transmission manner. The rotating seat 302 is also provided with a connecting sleeve 306. The connecting sleeve 306 covers the side wall and the bottom wall of the rotating seat 302 and is fixedly connected to the rotating seat 302. The connecting sleeve 306 is also fixedly connected with an ear plate 307. The ear plate 307 and the movable plate 301 are both provided with threaded holes correspondingly at the upper and lower parts. The ear plate 307 and the movable plate 301 are detachably bolted. The wire bundle is first passed around the wire guiding roller 305 and then enters the cutting device to provide a certain tension for the wire bundle, so that the wire bundle is easier to be cut. The wire guiding mechanism 3 cooperates with the lifting and adjusting mechanism 4 to adjust the entry angle and height of the wire bundle, which is convenient for tension adjustment.

[0037] In some embodiments, convex portions are further provided outwardly at the left and right ends of the rotating base 302. A damping sleeve 308 is sleeved on the convex portion closer to the rotating base 302, and a blocking member 309 is fixedly connected to the convex portion farther from the rotating base 302. One end of the connecting shaft 303 is sleeved on the convex portion between the damping sleeve 308 and the blocking member 309 and has the freedom to rotate around the convex portion. The other end of the connecting shaft 303 is fixedly connected to the rotating plate 304. The rotating plate 304 is provided with openings penetrating therethrough at fixed intervals along its upper surface. A roller shaft 310 is fixedly connected between the left and right ends at the opening of the rotating plate 304. The wire guiding roller 305 is sleeved on the roller shaft 310 and is used to provide tension to the tow;

[0038] In some embodiments, the lifting and adjusting mechanism 4 includes a rotary knob 401 and a lead screw 402. The rotary knob 401 is arranged at the top of the first protrusion 101. The lead screw 402 penetrates through the first protrusion 101. One end thereof is fixedly connected to the rotary knob 401, and the other end is in threaded connection with the movable plate 301;

[0039] In some embodiments, the wire splitting mechanism 5 includes a sliding seat 501, a sliding rod 502, a wire splitting seat 503, a fixed shaft 504 and a wire splitting plate 505. The sliding seat 501 is arranged on the left and right sides of the support plate 2. The sliding rod 502 is arranged along the length direction of the sliding seat 501, and both ends thereof are respectively fixed to the inner side walls of the sliding seat 501. The wire splitting seats 503 are symmetrically arranged on the front and rear sides of the support plate 2. A cutting groove 506 is formed at the edge of the outer surface of the wire splitting seat 503. The fixed shaft 504 is fixedly connected to the left and right ends of the wire splitting seat 503. The left and right ends of the wire splitting plate 505 protrude outward and are sleeved on the fixed shaft 504. The wire splitting plate 505 is provided with wire splitting holes 507 at fixed intervals along its length direction. The wire splitting seat 503 is provided with wire splitting grooves 508 at fixed intervals along its length direction. The positions of the wire splitting holes 507 and the wire splitting grooves 508 correspond to each other front and back. A cross plate 509 is further connected to the bottom of the wire splitting seat 503. A push spring 510 is fixed between the cross plate 509 and the inner top wall of the wire splitting seat 503. An insertion plate 511 is fixed to the bottom of the cross plate 509. The insertion plate 511 is matched with the limiting groove group 201 for limiting the wire splitting seat 503;

[0040] In some embodiments, a chute 102 is formed at the top of the frame body 1. The wire cutting mechanism 6 includes a slider 601, a top plate 602, a cylinder 603, a telescopic rod 604 and a cutting knife 605. The slider 601 is limited in the chute 102. The top plate 602 is erected between the left and right ends at the top of the frame body 1. A positioning column 606 is further arranged at the top of the slider 601. The positioning column 606 penetrates through the top plate 602. The cylinder 603 is arranged at the top of the top plate 602, and its output end is in transmission connection with one end of the telescopic rod 604. The other end of the telescopic rod 604 is fixed to the cutting knife 605;

[0041] In some embodiments, when the symmetrically arranged wire dividing seats 503 are fitted together, a cutting space is formed between the cutting grooves 506 on the two wire dividing seats 503.

Claims

1. A short fiber cutting device for cutting short fiber tows, characterized in that: include: A frame, a support plate, a wire guiding mechanism, a lifting and adjusting mechanism, a wire dividing mechanism and a wire cutting mechanism, wherein the top of the front end of the frame is opened, and the left and right ends of the opening are protruded outward to form a first protrusion, and the bottom of the rear end of the frame is also opened, and the support plate extends into the frame along the opening at the rear end of the frame and is fixedly connected to the frame, the lifting and adjusting mechanism is arranged at the first protrusion, the wire guiding mechanism includes a movable part, and the lifting and adjusting mechanism is transmission-connected with the movable part of the wire guiding mechanism, thereby driving the wire guiding mechanism to move, the support plate is provided with a plurality of limit groove groups downwardly along its upper surface, the wire dividing mechanism includes two symmetrically arranged parts, both of which can be detachably arranged in the limit groove group, and the wire cutting mechanism is arranged at the top of the frame, and is correspondingly located between the two parts of the wire dividing mechanism along the vertical direction.

2. A short fiber cutting device according to claim 1, characterized in that: A pair of limiting groove groups are provided on the left and right sides of the middle part of the support plate. When the two parts of the wire dividing mechanism are respectively limited in the limiting groove groups on the left and right sides, the two symmetrically arranged parts of the wire dividing mechanism fit together.

3. A short fiber cutting device according to claim 2, characterized in that: The wire guiding mechanism includes a movable plate, a rotating seat, a connecting shaft, a rotating plate and a wire guiding roller. The movable plate is transmission-connected to the lifting and lowering adjustment mechanism. The rotating seat is also provided with a connecting sleeve, which covers the side wall and the bottom wall of the rotating seat and is fixedly connected to the rotating seat. The connecting sleeve is also fixedly connected to an ear plate, and the ear plate and the movable plate are both provided with threaded holes correspondingly at the upper and lower parts. The ear plate and the movable plate are detachably bolted.

4. A short fiber cutting device according to claim 3, characterized in that: The left and right ends of the rotating seat are also provided with protrusions facing outward, a damping sleeve is sleeved on the protrusion close to the rotating seat, and a blocking member is fixedly connected to the protrusion away from the rotating seat. One end of the connecting shaft is sleeved on the protrusion between the damping sleeve and the blocking member, and has the freedom to rotate around the protrusion. The other end of the connecting shaft is fixedly connected to the rotating plate, and the rotating plate is provided with openings passing through it at fixed intervals along its upper surface. A roller is fixedly connected between the left and right ends of the opening of the rotating plate, and the wire guide roller is sleeved on the roller to provide tension to the wire bundle.

5. A short fiber cutting device according to claim 4, characterized in that: The lifting and lowering adjustment mechanism comprises a rotating knob and a screw rod. The rotating knob is arranged on the top of the first protrusion. The screw rod passes through the first protrusion, one end of the screw rod is fixedly connected to the rotating knob, and the other end is threadedly connected to the movable plate.

6. A staple cutting device according to claim 5, characterized in that: The two ends of the guide rail are fixedly mounted on the support frame, and the two ends of the guide rail are fixedly mounted on the support frame, and the two ends of the guide rail are fixedly mounted on the support frame.

7. A short fiber cutting device according to claim 6, characterized in that: A slide groove is provided on the top of the frame, and the wire cutting mechanism includes a slider, a top plate, a cylinder, a telescopic rod and a cutting knife. The slider is limited in the slide groove, and the top plate is arranged between the left and right ends of the top of the frame. A positioning column is also provided on the top of the slider, and the positioning column passes through the top plate. The cylinder is arranged on the top of the top plate, and its output end is transmission-connected to one end of the telescopic rod, and the other end of the telescopic rod is fixed to the cutting knife.

8. A short fiber cutting device according to claim 7, characterized in that: When the symmetrically arranged wire dividing seats are fitted together, a cutting space is formed between the cutting grooves on the two wire dividing seats.

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