Mixed fiber separation and collection process and device

Abstract

The invention provides a mixed fiber separation and collection process and device, and relates to the technical field of fiber separation. The mixed fiber separating and collecting device comprises a bottom plate, a screening box is fixedly installed above the bottom plate, a weak static pressure buoyancy generating mechanism is fixedly installed on the inner wall of the bottom of the screening box, an air guide pipe is arranged on one side of the screening box, and a horn pipe is fixedly installed on the side, away from the screening box, of the air guide pipe. A screen is arranged on the side, away from the air guide pipe, of the horn pipe, and a feeding hole formed in the inner wall of the top of the screening box is formed in the side, away from the air guide pipe, of the low static pressure buoyancy generating mechanism. The mixed fiber separation and collection process and device provided by the invention have the advantages that the use is convenient, and the displacement of the fibers in the horizontal movement can be improved by matching the pulse airflow with the weak static pressure buoyancy, so that the fibers with different qualities can be better separated, and the separation quality can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of fiber sorting, and in particular to a mixed fiber separation and collection process and device. Background Art

[0002] At present, there are several methods for separating mixed fibers: 1. Physical screening: Screening: Use screens with different apertures to separate fibers of different lengths and diameters; Gravity sedimentation: Utilize the density difference of different fibers to separate by sedimentation in liquid or gas.

[0003] 2. Chemical screening: Dissolution method: separation using different fibers’ different solubility in solvents; Chemical treatment: separation is achieved by changing the properties of certain fibers through chemical reactions.

[0004] 3. Mechanical screening: Centrifugal separation: Use centrifugal force to separate fibers of different qualities; Air separation: uses air flow to separate light and heavy fibers.

[0005] Among them, gravity sedimentation and air flow separation are more commonly used. However, when gravity sedimentation and air flow separation are traditionally used, continuous gas is mostly used to separate the mixed fibers. Although this separation method is highly efficient, its separation quality is poor.

[0006] Therefore, it is necessary to provide a new mixed fiber separation and collection process and device to solve the above technical problems. Summary of the invention

[0007] The technical problem solved by the present invention is to provide a mixed fiber separation and collection process and device which is easy to use and can increase the horizontal displacement of fibers through pulse airflow combined with weak static pressure buoyancy, thereby better separating fibers of different qualities and ensuring the separation quality.

[0008] In order to solve the above technical problems, the mixed fiber separation and collection device provided by the present invention comprises: a bottom plate, a screening box is fixedly installed above the bottom plate, a weak static pressure buoyancy generating mechanism is fixedly installed on the bottom inner wall of the screening box, an air duct is provided on one side of the screening box, a trumpet is fixedly installed on the side of the air duct away from the screening box, a screen is provided on the side of the trumpet away from the air duct, a feed hole is provided on the top inner wall of the screening box on the side of the weak static pressure buoyancy generating mechanism away from the air duct, a slope is provided on the side of the screening box away from the air duct, a pulse airflow mechanism is provided on the slope, the pulse airflow mechanism is used to emit a pulse airflow to perform pulse blowing on the mixed fibers entering from the feed hole, a screening baffle fixedly installed on the bottom inner wall of the screening box is provided on the side of the weak static pressure buoyancy generating mechanism close to the air duct, and a discharging mechanism is provided on one side of the screening box, the discharging mechanism removes the fibers screened by the different screening baffles from the screening box to complete the collection of the separated mixed fibers.

[0009] Preferably, a plurality of linearly distributed first support frames are fixedly mounted on the top of the bottom plate, and the tops of the first support frames are fixedly connected to the bottom of the screening box.

[0010] Preferably, the pulse airflow mechanism includes a second support frame fixedly mounted on the top of the base plate, a pulse tube is fixedly mounted on the second support frame, a pulse plate is slidingly sealedly mounted in the pulse tube, one end of a push rod is fixedly mounted on one side of the pulse plate, the other end of the push rod extends to the outside of the pulse tube and is fixedly mounted with a permanent magnet, a guide cover is fixedly mounted on the side of the pulse tube away from the permanent magnet, the side of the guide cover away from the pulse tube is fixedly connected to the screening box, a one-way air intake valve is provided on the guide cover, an electromagnet is provided on the side of the permanent magnet away from the pulse tube, the electromagnet and the permanent magnet have the same magnetic pole on their side close to each other, and a third support frame is fixedly mounted on the top of the base plate, and the electromagnet is fixedly mounted on the third support frame.

[0011] Preferably, a buffer and limit mechanism is provided in the pulse cylinder, and the buffer and limit mechanism is used to buffer and limit the pulse plate when it moves in the pulse cylinder.

[0012] Preferably, the buffer limit mechanism includes a plurality of mounting blocks fixedly mounted in the pulse cylinder, a sliding rod is slidably mounted on the mounting block, the sliding rod passes through the corresponding mounting block, one end of the sliding rod extends outside the pulse cylinder and is fixedly mounted with a first rubber block, the first rubber block is in contact with the electromagnet, a second rubber block is fixedly mounted on the other end of the sliding rod, the second rubber block is located in the pulse cylinder, the second rubber block is in contact with the pulse plate, a spring is sleeved on the outer side of the sliding rod, both ends of the spring are respectively fixedly mounted on the first rubber block and fixedly connected to the mounting block, a limiting ring is fixedly mounted in the pulse cylinder, and the limiting ring is adapted to the pulse plate.

[0013] Preferably, a pulse air outlet hole is opened on the screening box, a baffle is installed in the sliding seal inside the screening box, the baffle is adapted to the pulse air outlet hole, a first cylinder is fixedly installed on the outer side of the screening box, a connecting plate is fixedly installed on the output shaft of the first cylinder, and the connecting plate is fixedly connected to the baffle.

[0014] Preferably, a cavity is provided in the screening box, the baffle is slidingly and sealably installed in the cavity, the cavity is connected to the pulse air flow outlet hole, a through hole is provided on an inner wall of one side of the cavity, one side of the connecting plate extends into the through hole and is fixedly connected to the baffle.

[0015] Preferably, the discharge mechanism includes a plurality of wedge plates fixedly mounted on the inner wall at the bottom of the screening box, the plurality of wedge plates and the plurality of screening baffles are alternately arranged, a plurality of discharge holes are opened on the inner wall on one side of the screening box, the discharge holes are matched with the corresponding wedge plates, a plurality of linearly distributed material guide grooves are fixedly mounted on one side of the screening box, the material guide grooves are matched with the corresponding discharge holes, a mounting plate is provided above the material guide groove, the mounting plate is fixedly mounted on one side of the screening box, a second cylinder is fixedly mounted on the side of the mounting plate away from the screening box, a sealing plate is fixedly mounted on the output shaft length of the second cylinder, and the sealing plate is matched with the discharge hole.

[0016] Preferably, the weak static pressure buoyancy generating mechanism comprises a box body, a plurality of air outlets are provided on the top of the box body, an electrostatic generator is provided in the box body, a weak wind mechanism is provided in the box body, an air inlet is provided on one side of the box body, a filter is provided in the air inlet, the weak wind mechanism is used to discharge the gas entering the box body through the air inlet from the air outlet, and the electrostatic generator is used to charge the gas discharged from the air outlet with static electricity; The electrostatic generator includes a high-voltage generator, multiple electrodes, multiple ionization needles and wires. The high-voltage generator is fixedly installed in the box. The multiple electrodes are respectively arranged directly below the multiple air outlets. The high-voltage generator is connected to the multiple electrodes through wires. The ionization needles are fixedly connected to the corresponding electrodes, and the number of ionization needles on each electrode is multiple.

[0017] The present invention also provides a mixed fiber separation and collection process, comprising the following steps: S1: Start the weak static pressure buoyancy generating mechanism to generate static pressure buoyancy in the screening box; S2: Start the pulse airflow mechanism to generate a pulse airflow on the inclined surface below the feed hole; S3: putting the mixed fiber into the screening box through the feed hole, the mixed fiber falls through the inclined surface in the screening box, and the mixed fiber is blown to the top of the weak static pressure buoyancy generating mechanism by the pulse airflow, and the static pressure buoyancy generated by the weak static pressure buoyancy generating mechanism is used to screen the fibers of different qualities in the mixed fiber, so that the fibers of different qualities fall between different screening baffles after being screened by the pulse airflow mechanism and the weak static pressure buoyancy generating mechanism; S4: The screened fibers are taken out of the screening box, thus completing the separation and collection of the mixed fibers.

[0018] Compared with the related art, the mixed fiber separation and collection process and device provided by the present invention have the following beneficial effects: The present invention provides a mixed fiber separation and collection process and device, which can facilitate the mixed fibers to slide along the inner wall of the screening box through the feed hole and the inner wall of the screening box below the feed hole, and at the same time facilitate the pulse airflow mechanism to provide an inclined upward force for the mixed fibers, so as to facilitate the separation of the mixed fibers; through the pulse airflow mechanism composed of the second support frame, the pulse cylinder, the limit ring, the pulse plate, the push rod, the permanent magnet, the guide cover, the one-way air intake valve, the third support frame and the electromagnet, an inclined upward force can be intermittently provided to the mixed fibers, which can avoid the interference of continuous blowing on the separation of the mixed fibers, and can The efficiency of mixed fiber separation is improved; the buffer limit mechanism composed of the mounting block, the slide rod, the first rubber block, the second rubber block and the spring can provide a good buffering effect on the components of the pulse airflow mechanism, thereby providing a good protective effect; the arrangement of the wedge plate, the discharge hole and the guide trough can facilitate the removal of the separated fibers from the screening box, thereby facilitating the collection of the separated fibers; the arrangement of the mounting plate, the second cylinder and the sealing plate can prevent the discharge hole from interfering with the airflow in the screening box when the mixture is separated, thereby ensuring the separation quality and efficiency of the mixed fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the mixed fiber separation and collection device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the second viewing angle is shown; Figure 3 for Figure 1 The schematic diagram of the structure from a third viewing angle after the second cylinder and the sealing plate are removed is shown; Figure 4 for Figure 3 The cross-sectional structural diagram shown; Figure 5 for Figure 4 A schematic diagram of the structure from another perspective is shown; Figure 6 for Figure 1 The schematic diagram of the connection structure of the bottom plate, the screening box and the pulse airflow mechanism shown; Figure 7 for Figure 6 A schematic diagram of the structure from another perspective is shown; Figure 8 for Figure 6 The schematic diagram of the structure after removing the bottom plate, screening box, support frame and electromagnet is shown; Fig. 9 for Figure 8 A schematic diagram of the structure from another perspective is shown; Fig.10 for Figure 8 The cross-sectional structural diagram shown; Fig.11 for Fig. 9 The cross-sectional structural diagram shown; Fig.12 for Figure 1 The structural schematic diagram of the weak static pressure buoyancy generating mechanism shown; Fig.13 for Fig.12 The cross-sectional structural diagram is shown.

[0020] Numbers in the figure: 1. bottom plate; 2. first support frame; 3. screening box; 4. weak static pressure buoyancy generating mechanism; 5. screening baffle; 6. wedge plate; 7. air guide duct; 8. trumpet tube; 9. screen; 10. second support frame; 11. pulse tube; 12. limit ring; 13. pulse plate; 14. push rod; 15. permanent magnet; 16. mounting block; 17. slide bar; 18. first rubber block; 19. second rubber block; 20. spring; 21. air deflector; 22. one-way air inlet valve; 23. third support frame; 24. electromagnet; 25. pulse air flow outlet hole; 26. baffle; 27. connecting plate; 28. first cylinder; 29. ​​feed hole; 30. discharge hole; 31. guide trough; 32. mounting plate; 33. second cylinder; 34. sealing plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1-Figure 13 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the mixed fiber separation and collection device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the second viewing angle is shown; Figure 3 for Figure 1 The schematic diagram of the structure from a third viewing angle after the second cylinder and the sealing plate are removed is shown; Figure 4 for Figure 3 The cross-sectional structural diagram shown; Figure 5 for Figure 4 A schematic diagram of the structure from another perspective is shown; Figure 6 for Figure 1 The schematic diagram of the connection structure of the bottom plate, the screening box and the pulse airflow mechanism shown; Figure 7 for Figure 6 A schematic diagram of the structure from another perspective is shown; Figure 8 for Figure 6 The schematic diagram of the structure after removing the bottom plate, screening box, support frame and electromagnet is shown; Fig. 9 for Figure 8 A schematic diagram of the structure from another perspective is shown; Fig.10 for Figure 8 The cross-sectional structural diagram shown; Fig.11 for Fig. 9 The cross-sectional structural diagram shown; Fig.12 for Figure 1 The structural schematic diagram of the weak static pressure buoyancy generating mechanism shown; Fig.13 for Fig.12The mixed fiber separation and collection device comprises: a bottom plate 1, a screening box 3 is fixedly installed on the top of the bottom plate 1, a weak static pressure buoyancy generating mechanism 4 is fixedly installed on the bottom inner wall of the screening box 3, an air duct 7 is provided on one side of the screening box 3, a trumpet tube 8 is fixedly installed on the side of the air duct 7 away from the screening box 3, the trumpet tube 8 and the air duct 7 are arranged to facilitate the pulse airflow to form a smooth airflow in the screening box 3, and at the same time, the trumpet tube 8 can be arranged to facilitate the filtering and collection of lighter impurities such as dust in the mixed fibers. The side of the bell tube 8 away from the air duct 7 is provided with a screen 9, and the screen 9 is detachably connected to the bell tube 8. When the inside of the bell tube 8 needs to be cleaned, the screen 9 only needs to be removed, and then the bell tube 8 can be cleaned. The side of the weak static pressure buoyancy generating mechanism 4 away from the air duct 7 is provided with a feed hole 29 opened on the top inner wall of the screening box 3. The side of the screening box 3 away from the air duct 7 is arranged with an inclined surface. The inclined surface can facilitate the fiber to slide down along the inner wall of the screening box 3, and can also make the pulse airflow machine The airflow blown out by the structure is a horizontal upward airflow, which can apply an initial force to the fiber in the horizontal direction and an initial force to the fiber in the vertical direction. The initial force in the horizontal direction can ensure that the mixed fiber moves horizontally in the screening plate 3, so that the mixed fiber can be screened according to the quality of different fibers. The initial force in the vertical direction can ensure that the mixed fiber is successfully moved to the top of the weak static pressure buoyancy generating mechanism 4, so that the weak static pressure buoyancy generating mechanism 4 can successfully provide a weak static pressure buoyancy for the mixed fiber, so as to ensure the screening of the mixed fiber; a pulse airflow mechanism is provided on the inclined surface, and the pulse airflow mechanism is used to emit a pulse airflow to perform pulse blowing on the mixed fiber entering from the feed hole 29. A screening baffle 5 fixedly mounted on the inner wall of the bottom of the screening box 3 is provided on one side of the weak static pressure buoyancy generating mechanism 4 close to the air guide 7. A discharging mechanism is provided on one side of the screening box 3. The discharging mechanism removes the fibers screened by the different screening baffles 5 from the screening box 3 to complete the collection of the separated mixed fibers.

[0023] A plurality of linearly distributed first support frames 2 are fixedly mounted on the top of the bottom plate 1 , and the top of the first support frames 2 is fixedly connected to the bottom of the screening box 3 .

[0024] The pulse airflow mechanism comprises a second support frame 10 fixedly mounted on the top of the bottom plate 1, a pulse tube 11 is fixedly mounted on the second support frame 10, a pulse plate 13 is installed in the pulse tube 11 in a sliding and sealing manner, one end of a push rod 14 is fixedly mounted on one side of the pulse plate 13, the other end of the push rod 14 extends to the outside of the pulse tube 11 and is fixedly mounted with a permanent magnet 15, a guide cover 21 is fixedly mounted on the side of the pulse tube 11 away from the permanent magnet 15, and the side of the guide cover 21 away from the pulse tube 11 is fixed to the screening box 3. A one-way air intake valve 22 is provided on the air deflector 21, an electromagnet 24 is provided on the side of the permanent magnet 15 away from the pulse tube 11, the electromagnet 24 and the permanent magnet 15 have the same magnetic poles on the side close to each other, a third support frame 23 is fixedly installed on the top of the base plate 1, the electromagnet 24 is fixedly installed on the third support frame 23, and the side close to each other of the electromagnet 24 and the permanent magnet 15 is set to have the same magnetic poles, a repulsive force can be applied to the permanent magnet 15 when the electromagnet 24 is energized, so that the permanent magnet 15 can move quickly.

[0025] A buffering and limiting mechanism is provided in the pulse tube 11, and the buffering and limiting mechanism is used to buffer and limit the pulse plate 13 when it moves in the pulse tube 11. The setting of the buffering and limiting mechanism can have a limiting and buffering effect on the permanent magnet 15 and the pulse plate 13, thereby providing a better protection for the pulse airflow mechanism.

[0026] The buffer limit mechanism includes a plurality of mounting blocks 16 fixedly mounted in the pulse tube 11, a slide bar 17 is slidably mounted on the mounting block 16, the slide bar 17 passes through the corresponding mounting block 16, one end of the slide bar 17 extends to the outside of the pulse tube 11 and is fixedly mounted with a first rubber block 18, the first rubber block 18 is in contact with the electromagnet 24, the other end of the slide bar 17 is fixedly mounted with a second rubber block 19, the second rubber block 19 is located in the pulse tube 11, the second rubber block 19 is in contact with the pulse plate 13, a spring 20 is sleeved on the outer side of the slide bar 17, the two ends of the spring 20 are respectively fixedly mounted on the first rubber block 18 and fixedly connected to the mounting block 16, a limit ring 12 is fixedly mounted in the pulse tube 11, and the limit ring 12 is adapted to the pulse plate 13.

[0027] The screening box 3 is provided with a pulse air outlet hole 25, and a baffle 26 is installed in the screening box 3 in a sliding seal, and the baffle 26 is adapted to the pulse air outlet hole 25. A first cylinder 28 is fixedly installed on the outer side of the screening box 3, and a connecting plate 27 is fixedly installed on the output shaft of the first cylinder 28, and the connecting plate 27 is fixedly connected to the baffle 26.

[0028] Through the arrangement of the first cylinder 28, the connecting plate 27 and the baffle 26, when the pulse plate 13 moves toward the side close to the electromagnet 24, the pulse air outlet hole 25 can be closed, so that air can be introduced into the pulse tube 11 through the one-way air intake valve 22. This air intake arrangement can avoid the airflow in the pulse tube 11 being disturbed when the pulse plate 13 moves toward the side close to the electromagnet 24 and causes the pulse tube 11 to take in air, thereby ensuring the separation efficiency of the mixed fibers.

[0029] A cavity is defined in the screening box 3 , and the baffle 26 is slidably and sealingly installed in the cavity. The cavity is communicated with the pulse air flow outlet 25 . A through hole is defined on one inner wall of the cavity. One side of the connecting plate 27 extends into the through hole and is fixedly connected to the baffle 26 .

[0030] The discharging mechanism includes a plurality of wedge plates 6 fixedly mounted on the inner wall at the bottom of the screening box 3, the plurality of wedge plates 6 and the plurality of screening baffles 5 are alternately arranged, a plurality of discharging holes 30 are opened on the inner wall on one side of the screening box 3, the discharging holes 30 are matched with the corresponding wedge plates 6, a plurality of linearly distributed guide grooves 31 are fixedly mounted on one side of the screening box 3, the guide grooves 31 are matched with the corresponding discharging holes 30, a mounting plate 32 is provided above the guide groove 31, the mounting plate 32 is fixedly mounted on one side of the screening box 3, a second cylinder 33 is fixedly mounted on the side of the mounting plate 32 away from the screening box 3, a sealing plate 34 is fixedly mounted on the output shaft length of the second cylinder 33, and the sealing plate 34 is matched with the discharging hole 30.

[0031] By arranging the wedge plate 6, the discharge hole 30, the guide trough 31, the second cylinder 33 and the sealing plate 34, the separated fibers can be easily removed from the screening box 3, thereby facilitating the collection of the separated mixed fibers.

[0032] The weak static pressure buoyancy generating mechanism comprises a box body, a plurality of air outlets are provided on the top of the box body, an electrostatic generator is provided in the box body, a weak wind mechanism is provided in the box body, an air inlet is provided on one side of the box body, a filter is provided in the air inlet, the weak wind mechanism is used to discharge the gas entering the box body through the air inlet from the air outlet, and the electrostatic generator is used to charge the gas discharged from the air outlet with static electricity; The electrostatic generator includes a high-voltage generator, multiple electrodes, multiple ionization needles and wires. The high-voltage generator is fixedly installed in the box. The multiple electrodes are respectively arranged directly below the multiple air outlets. The high-voltage generator is connected to the multiple electrodes through wires. The ionization needles are fixedly connected to the corresponding electrodes, and the number of ionization needles on each electrode is multiple.

[0033] The present invention also provides a mixed fiber separation and collection process, comprising the following steps: S1: Start the weak static pressure buoyancy generating mechanism 4 to generate static pressure buoyancy in the screening box 3; Specifically, the high voltage generator is started, and the high voltage generator generates a high voltage on the electrode and the ionization needle through the wire, and the ionization needle with high voltage ionizes the air below the air outlet to generate static electricity; The weak wind mechanism is started, and the weak wind mechanism sucks the air outside the box from the air inlet. The sucked air is filtered by the filter and enters below the air outlet, and then pushes the ionized air to move slowly upward, thereby generating weak static pressure buoyancy; S2: Start the pulse airflow mechanism to generate a pulse airflow on the inclined surface below the feed hole 29; S3: Put the mixed fiber into the screening box 3 through the feed hole 29, the mixed fiber falls through the inclined surface in the screening box 3, and the mixed fiber is blown to the top of the weak static pressure buoyancy generating mechanism 4 by the pulse airflow, and the static pressure buoyancy generated by the weak static pressure buoyancy generating mechanism 4 is used to screen the fibers of different qualities in the mixed fiber, so that the fibers of different qualities fall between different screening baffles 5 after being screened by the pulse airflow mechanism and the weak static pressure buoyancy generating mechanism 4; Specifically, when blowing air on the mixed fiber that has fallen, the electromagnet 24 is energized, and the electromagnet 24 applies a repulsive force to the permanent magnet 15 to push the permanent magnet 15 to move, and the permanent magnet 15 pushes the push rod 14 to move, and the push rod 14 pushes the pulse plate 13 to move in the pulse tube 11. In this process, the permanent magnet 15 pushes the first rubber block 18 to move, and the first rubber block 18 pushes the slide bar 17 to move, and the slide bar 17 pushes the second rubber block 19 to move, and the second rubber block 19 pushes the pulse plate 13 to move, and the spring 20 is compressed, so that the gas in the pulse tube 11 is compressed, and the compressed gas is discharged through the guide cover 21 and finally through the pulse gas outlet hole 25, so as to form a pulse airflow to blow the mixed fiber to the top of the weak static pressure buoyancy generating mechanism 4, so as to cooperate with the weak static pressure buoyancy generating mechanism 4 to separate and collect fibers of different qualities; S4: taking out the screened fibers from the screening box 3, thus completing the separation and collection of the mixed fibers; Specifically, the second cylinder 33 is started, and the second cylinder 33 drives the sealing plate 34 to move upward through the output shaft, so that the discharge hole 30 is opened. Since a wedge plate 6 is installed on the bottom of the screening box 3, the separated mixed fibers can slide from the top of the wedge plate 6 to the guide trough 31 under the action of their own gravity, thereby realizing the separation and collection of the mixed fibers; if the mixed fibers cannot slide from the top of the wedge plate 6 to the guide trough 31 under the action of their own gravity, a tool can be inserted through the discharge hole 30 to remove the fibers.

[0034] In S3, when no mixed fiber falls from the feed hole 29, the first cylinder 28 is started first, and the first cylinder 28 pushes the connecting plate 27 to move, and the connecting plate 27 pushes the baffle 26 to move until the baffle 26 closes the pulse air flow outlet 25. At this time, the electromagnet 24 is powered off, and the repulsive force between the electromagnet 24 and the permanent magnet 15 disappears. At this time, the permanent magnet 15 is reset due to its own gravity and the elastic force of the spring 20. During the reset process, since the baffle 26 seals the pulse air flow outlet 25, air enters the pulse tube 11 through the one-way air intake valve 22. When the permanent magnet 15 is reset, the first cylinder 28 is closed, and the output shaft of the first cylinder 28 is reset, so that the pulse air flow outlet 25 is reopened to prepare for the formation of the next pulse air flow.

[0035] Compared with the related art, the mixed fiber separation and collection process and device provided by the present invention have the following beneficial effects: The present invention provides a mixed fiber separation and collection process and device. Through the feed hole 29 and the inner wall of the screening box 3 below the feed hole 29 is set to be inclined, it is convenient for the mixed fibers to slide along the inner wall of the screening box 3, and at the same time, it is convenient for the pulse airflow mechanism to provide an inclined upward force for the mixed fibers, so that the mixed fibers can be separated conveniently; through the pulse airflow mechanism composed of the second support frame 10, the pulse cylinder 11, the limit ring 12, the pulse plate 13, the push rod 14, the permanent magnet 15, the deflector 21, the one-way air intake valve 22, the third support frame 23 and the electromagnet 24, an inclined upward force can be intermittently provided to the mixed fibers, which can avoid the continuous blowing from interfering with the separation of the mixed fibers. The efficiency of mixed fiber separation can be improved; the buffering and limiting mechanism composed of the mounting block 16, the slide bar 17, the first rubber block 18, the second rubber block 19 and the spring 20 can provide a good buffering effect on the components of the pulse airflow mechanism, thereby providing a good protective effect; the arrangement of the wedge plate 6, the discharge hole 30 and the guide trough 31 can facilitate the removal of the separated fibers from the screening box 3, thereby facilitating the collection of the separated fibers; the arrangement of the mounting plate 32, the second cylinder 33 and the sealing plate 34 can prevent the discharge hole 30 from interfering with the airflow in the screening box 3 when the mixture is separated, thereby ensuring the separation quality and efficiency of the mixed fibers.

[0036] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mixed fiber separation and collection device, characterized in that: include: The vent pipe is fixedly mounted on the top of the filter housing, and a vent pipe is fixedly mounted on the bottom inner wall of the filter housing. An air duct is arranged on one side of the filter housing, and a horn pipe is fixedly mounted on the side of the filter housing away from the filter housing. A screen is arranged on the side of the horn pipe away from the filter housing. A feed hole is arranged on the top inner wall of the filter housing on the side of the vent pipe away from the filter housing. The filter housing is arranged on an inclined surface on the side away from the filter housing, and a pulse airflow mechanism is arranged on the inclined surface. The pulse airflow mechanism is used to emit a pulse airflow to perform pulse blowing on the mixed fibers entering from the feed hole. A screening baffle fixedly mounted on the bottom inner wall of the screening box is arranged on the side of the weak static pressure buoyancy generating mechanism close to the air duct. A discharging mechanism is arranged on one side of the screening box, and the discharging mechanism removes the fibers screened by the different screening baffles from the screening box to complete the collection of the separated mixed fibers.

2. The mixed fiber separation and collection device according to claim 1, characterized in that: A plurality of linearly distributed first support frames are fixedly mounted on the top of the bottom plate, and the tops of the first support frames are fixedly connected to the bottom of the screening box.

3. The mixed fiber separation and collection device according to claim 1, characterized in that: The pulse airflow mechanism includes a second support frame fixedly mounted on the top of the base plate, a pulse tube fixedly mounted on the second support frame, a pulse plate slidingly sealedly mounted in the pulse tube, one end of a push rod fixedly mounted on one side of the pulse plate, the other end of the push rod extends to the outside of the pulse tube and fixedly mounted with a permanent magnet, a guide cover fixedly mounted on the side of the pulse tube away from the permanent magnet, the side of the guide cover away from the pulse tube is fixedly connected to the screening box, a one-way air intake valve is provided on the guide cover, an electromagnet is provided on the side of the permanent magnet away from the pulse tube, the electromagnet and the permanent magnet have the same magnetic pole on their sides close to each other, and a third support frame fixedly mounted on the top of the base plate, the electromagnet fixedly mounted on the third support frame.

4. The mixed fiber separation and collection device according to claim 3, characterized in that: A buffering and limiting mechanism is provided in the pulse cylinder, and the buffering and limiting mechanism is used to buffer and limit the pulse plate when it moves in the pulse cylinder.

5. The mixed fiber separation and collection device according to claim 4, characterized in that: The buffer limit mechanism includes a plurality of mounting blocks fixedly mounted in the pulse cylinder, a sliding rod slidably mounted on the mounting block, the sliding rod passing through the corresponding mounting block, one end of the sliding rod extending outside the pulse cylinder and fixedly mounted with a first rubber block, the first rubber block is in contact with the electromagnet, a second rubber block is fixedly mounted on the other end of the sliding rod, the second rubber block is located in the pulse cylinder, the second rubber block is in contact with the pulse plate, a spring is sleeved on the outer side of the sliding rod, the two ends of the spring are respectively fixedly mounted on the first rubber block and fixedly connected with the mounting block, a limiting ring is fixedly mounted in the pulse cylinder, and the limiting ring is adapted to the pulse plate.

6. The mixed fiber separation and collection device according to claim 5, characterized in that: The screening box is provided with a pulse air flow outlet hole, a baffle is installed in the screening box for sliding sealing, the baffle is adapted to the pulse air flow outlet hole, a first cylinder is fixedly installed on the outer side of the screening box, a connecting plate is fixedly installed on the output shaft of the first cylinder, and the connecting plate is fixedly connected to the baffle.

7. The mixed fiber separation and collection device according to claim 6, characterized in that: A cavity is provided in the screening box, the baffle is slidingly and sealingly installed in the cavity, the cavity is connected to the pulse air flow outlet hole, a through hole is provided on an inner wall of one side of the cavity, one side of the connecting plate extends into the through hole and is fixedly connected to the baffle.

8. The mixed fiber separation and collection device according to claim 1, characterized in that: The discharging mechanism includes a plurality of wedge plates fixedly mounted on the inner wall at the bottom of the screening box, the plurality of wedge plates and the plurality of screening baffles are alternately arranged, a plurality of discharging holes are opened on the inner wall on one side of the screening box, the discharging holes are matched with the corresponding wedge plates, a plurality of linearly distributed material guide grooves are fixedly mounted on one side of the screening box, the material guide grooves are matched with the corresponding discharging holes, a mounting plate is provided above the material guide groove, the mounting plate is fixedly mounted on one side of the screening box, a second cylinder is fixedly mounted on the side of the mounting plate away from the screening box, a sealing plate is fixedly mounted on the output shaft length of the second cylinder, and the sealing plate is matched with the discharging hole.

9. The mixed fiber separation and collection device according to claim 1, characterized in that: The weak static pressure buoyancy generating mechanism comprises a box body, a plurality of air outlets are provided on the top of the box body, an electrostatic generator is provided in the box body, a weak wind mechanism is provided in the box body, an air inlet is provided on one side of the box body, a filter is provided in the air inlet, the weak wind mechanism is used to discharge the gas entering the box body through the air inlet from the air outlet, and the electrostatic generator is used to charge the gas discharged from the air outlet with static electricity; The electrostatic generator includes a high-voltage generator, multiple electrodes, multiple ionization needles and wires. The high-voltage generator is fixedly installed in the box. The multiple electrodes are respectively arranged directly below the multiple air outlets. The high-voltage generator is connected to the multiple electrodes through wires. The ionization needles are fixedly connected to the corresponding electrodes, and the number of ionization needles on each electrode is multiple.

10. A mixed fiber separation and collection process using the mixed fiber separation and collection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Start the weak static pressure buoyancy generating mechanism to generate static pressure buoyancy in the screening box; S2: Start the pulse airflow mechanism to generate a pulse airflow on the inclined surface below the feed hole; S3: putting the mixed fiber into the screening box through the feed hole, the mixed fiber falls through the inclined surface in the screening box, and the mixed fiber is blown to the top of the weak static pressure buoyancy generating mechanism by the pulse airflow, and the static pressure buoyancy generated by the weak static pressure buoyancy generating mechanism is used to screen the fibers of different qualities in the mixed fiber, so that the fibers of different qualities fall between different screening baffles after being screened by the pulse airflow mechanism and the weak static pressure buoyancy generating mechanism; S4: The screened fibers are taken out of the screening box, thus completing the separation and collection of the mixed fibers.

Images