A crushing and feeding processing technology for the production of fiber-plastic composite materials

Abstract

The present invention discloses a crushing and feeding processing technology for the production of fiber-plastic composite materials, which relates to the technical field of the production of fiber-plastic composite materials and solves the technical problems that waste spun fibers are blocked and the feeding is intermittent when they are fed naturally from the bag mouth; it includes the following steps: S1. Hang the feeding ton bag in the frame member of the feeding device, open the bag mouth to feed the feeding hopper, and use the material pushing rod and the downward moving member in the feeding mechanism to push the material downward while moving, so as to quickly feed the waste spun fibers at the bag mouth; S2. The waste spun fibers are fed into the feeding hopper; the present invention can assist the feeding of waste spun fibers during the feeding process, and there will be no situation where the waste spun fibers block the bag mouth and the feeding is intermittent, ensuring the continuity of the feeding of waste spun fibers, and relatively leveling the fed waste spun fibers, so that the amount of waste spun fibers entering the crushing device subsequently is uniform, which is convenient for fully crushing them, and improving the crushing processing efficiency of waste spun fibers.

Description

Technical Field

[0001] The present invention belongs to the field of production of fiber-plastic composite materials, and specifically relates to a crushing and feeding processing technology for the production of fiber-plastic composite materials. Background Art

[0002] Fiber-plastic composite materials are mainly divided into four types: carbon fiber composite materials, glass fiber composite materials, aramid fiber composite materials, and bionic materials. They have the characteristics of light weight, high strength, corrosion resistance, etc., and are widely used in many fields such as aerospace, automobile manufacturing, sports equipment, and construction fields. One of the sources of fiber-plastic composite material production is to recycle waste textile fibers and realize the resource conversion of waste textile fibers as reinforcing materials for plastics. Therefore, crushing processing will be carried out during the process of converting waste textile fiber resources into fiber-plastic composite materials.

[0003] When some existing waste textile fibers are fed and crushed, the waste textile fibers are prone to blockage when naturally feeding from the bag mouth, resulting in intermittent and uneven feeding of the waste textile fibers, causing uneven subsequent crushing amounts of the waste textile fibers and reducing the crushing efficiency of the waste textile fibers. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; for this purpose, the present invention proposes a crushing and feeding processing technology for the production of fiber-plastic composite materials.

[0005] A crushing and feeding processing technology for the production of fiber-plastic composite materials includes the following steps:

[0006] S1. Hang the feeding ton bag in the frame member of the feeding device, open the bag mouth to feed the feeding hopper, and use the material pushing rod and the downward moving member in the feeding mechanism to push the material downward while moving to quickly feed the waste textile fibers at the bag mouth.

[0007] S2. When the waste textile fibers are fed into the feeding hopper, use the material pushing rod and the material pushing hook to assist in feeding the waste textile fibers in the feeding hopper onto the flat conveyor, and then use the leveling member to level and make the waste textile fibers on the flat conveyor relatively flat and uniform.

[0008] S3. The waste textile fibers fall on the horizontal conveyor and are then transported to the primary crushing device for primary crushing processing. The processed primary materials fall on the first climbing feeder and are transported to the mesh belt type cooling conveyor for serpentine transportation and cooling.

[0009] S4. The primary materials cooled in step S3 are transported to the secondary crushing device through the second climbing feeder for secondary crushing, and the crushed secondary materials are screened and fed through the screening and recycling mechanism.

[0010] Preferably, the material pushing rod is vertically located in the feeding hopper, and its upper end extends into the bag mouth of the feeding ton bag. Two material pushing hooks are arranged on the material pushing rod, which are respectively located in the feeding hopper and the bag mouth.

[0011] Preferably, a supporting cross plate penetrating through the feeding hopper and exposed outside is horizontally arranged at the lower end of the material pushing rod. The right end of the supporting cross plate is connected to the piston rod inside the driving cylinder. A vertical frame is arranged on the side of the feeding hopper, and a side mounting frame for supporting the driving cylinder is arranged on the right side of the vertical frame.

[0012] Preferably, the downward moving member includes a fixed vertical plate fixed on the side of the vertical frame and located above the supporting cross plate. An isosceles wedge block is arranged on the supporting cross plate, and two fixed wedge blocks are arranged on the fixed vertical plate, which are respectively located on both sides of the isosceles wedge block.

[0013] Preferably, a reset member is arranged between the driving cylinder and the side mounting frame. The reset member includes a supporting seat sleeved on the driving cylinder. A side bottom plate is arranged on the right side of the side mounting frame and located below the supporting seat. Two limiting bottom rails are arranged above the side bottom plate. A telescopic column is arranged between the limiting bottom rail and the side bottom plate. A reset piece is sleeved on the telescopic column. The supporting seat is slidably sleeved on the limiting bottom rail.

[0014] Preferably, a leveling member for pushing the waste spun fibers on the surface of the flat conveyor is arranged below the feeding hopper. The leveling member includes a fixed top plate fixed on the front surface of the fixed vertical plate. A rotatable rotating shaft is embedded in the fixed top plate. A deflection gear is sleeved on the rotating shaft. A U-shaped frame matched with the deflection gear is arranged on the lower surface of the supporting cross plate. The lower end of the rotating shaft is provided with a deflection plate with its left end extending below the feeding hopper. Multiple material pushing columns are arranged on the lower surface of the deflection plate.

[0015] Preferably, a discharge hopper is arranged on the lower surface of the secondary crushing device. A screening and recycling mechanism is arranged below the discharge hopper. The screening and recycling mechanism includes a flat screen net located below the discharge hopper. A rotating screen net is rotatably arranged at the left end of the flat screen net. Two support plates for supporting the flat screen net front and back are arranged below the secondary crushing device.

[0016] Preferably, the support plate is of an L-shaped structure, and a reciprocating cylinder is horizontally arranged on the inner surface of the vertical end of the support plate. A connecting frame is arranged between the piston rod inside the reciprocating cylinder and the flat screen net.

[0017] Preferably, a guiding inclined plate is arranged on the left side of the horizontal end of the support plate, and an arc-shaped load-bearing strip is arranged on the inner surface of the left end of the rotating screen net.

[0018] Preferably, a fixed frame is arranged on the left side of the secondary crushing device. A laterally distributed blanking cylinder is installed at the lower end of the fixed frame. The left end of the blanking cylinder is connected to a cylinder seat sleeved on the reciprocating cylinder.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) The present invention can assist the feeding of waste spun fibers during the feeding process, and there will be no situation where the waste spun fibers block the bag mouth and the feeding is intermittent. It ensures the continuity of the feeding of waste spun fibers and relatively levels the fed waste spun fibers, making the amount of waste spun fibers entering the subsequent crushing device uniform, facilitating its full crushing, and improving the crushing processing efficiency of waste spun fibers.

[0021] (2) Through the designed bag mouth adjusting mechanism, the present invention can change the size of the opened bag mouth according to the feeding amount requirement of the crushing device, thereby adjusting the feeding amount of the feeding ton bag, avoiding the situation where excessive feeding of waste spun fibers affects the crushing sufficiency, increasing the convenience of feeding and crushing of waste spun fibers, and improving the crushing effect.

[0022] (3) Through the designed screening and recycling mechanism, the present invention can collect the materials that meet the screening requirements, while the materials that do not meet the screening requirements remain on the flat screen mesh and are collected by rotating the screen mesh and discharging laterally, facilitating the re-feeding of the unqualified materials into the secondary crushing device for crushing processing. Description of the Drawings

[0023] Figure 1 is the process flow chart of the crushing and feeding of the raw materials of the fiber-plastic composite material of the present invention;

[0024] Figure 2 is the present invention Figure 1 the structural schematic diagram of the feeding device in;

[0025] Figure 3 is the present invention Figure 2 the structural schematic diagram of the feeding mechanism in;

[0026] Figure 4 is the present invention Figure 3 the structural schematic diagram of the downward moving member in;

[0027] Figure 5 is the present invention Figure 4 the enlarged view of area A in;

[0028] Figure 6 is the present invention Figure 3 the structural schematic diagram of the leveling member in;

[0029] Figure 7 is the present invention Figure 2 the structural schematic diagram of the frame member in;

[0030] Figure 8 is the present invention Figure 7 the structural schematic diagram of the bag mouth adjusting mechanism in;

[0031] Figure 9 For the present invention Figure 1 Schematic diagram of the bottom view structure of the secondary crushing device in the present invention;

[0032] Figure 10 For the present invention Figure 9 Schematic diagram of the structure of the screening and recycling mechanism in the present invention;

[0033] In the figure: 100, feeding device; 101, frame member; 1011, top frame; 1012, lower support leg; 1013, adjusting cylinder; 1014, fixed support leg; 102, feeding ton bag; 103, flat conveyor; 104, feeding hopper; 1041, vertical frame; 200, primary crushing device; 300, first climbing feeder; 400, mesh belt cooling conveyor; 500, second climbing feeder; 600, secondary crushing device; 700, blanking mechanism; 701, feeding rod; 702, side mounting frame; 703, driving cylinder; 704, downward moving member; 7041, isosceles wedge block; 7042, fixed wedge block; 7043, mounting slide; 7044, fixed vertical plate; 705, leveling member; 7051, U-shaped frame; 7052, fixed top plate; 7053, rotating shaft; 7054, deflection gear; 7055, deflection plate; 7056, feeding column; 706, feeding hook; 707, supporting cross plate; 708, filling block; 709, reset member; 7091, supporting seat; 7092, side bottom plate; 7093, limiting bottom rail; 7094, telescopic column; 7095, reset member; 800, bag mouth adjusting mechanism; 801, telescopic cylinder; 802, mounting cross plate; 803, clamping plate; 804, bidirectional lead screw; 805, guiding slider; 806, driving motor; 900, screening and recycling mechanism; 901, flat screen mesh; 902, rotating screen mesh; 903, support plate; 904, guiding inclined plate; 905, reciprocating cylinder; 906, connecting frame; 907, blanking cylinder; 908, fixed frame; 909, cylinder seat. Detailed implementation manners

[0034] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. 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 creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figure 1 - Figure 6 , this application provides a crushing and feeding processing technology for the production of fiber-plastic composite materials, including the following steps:

[0037] S1. Hang the feeding ton bag 102 inside the frame member 101 in the feeding device 100, open the bag mouth to feed the feeding hopper 104, and use the feeding rod 701 and the downward moving member 704 in the feeding mechanism 700 to feed the waste textile fibers downward while moving, quickly feeding the waste textile fibers at the bag mouth of the feeding ton bag 102, avoiding the blockage of waste textile fibers at the bag mouth of the feeding ton bag 102. By using the feeding mechanism 700, it can assist the feeding of waste textile fibers during the feeding process, and there will be no situation where the waste textile fibers block the bag mouth and the feeding is intermittent, ensuring the continuity of the waste textile fiber feeding, and relatively leveling the fed waste textile fibers, making the amount of waste textile fibers entering the subsequent crushing device uniform and facilitating its full crushing, improving the crushing processing efficiency of waste textile fibers;

[0038] S2. When the waste textile fibers are fed into the feeding hopper 104, use the feeding rod 701 and the feeding hook 706 to assist in feeding the waste textile fibers in the feeding hopper 104 onto the flat conveyor 103, and then use the leveling member 705 to level the waste textile fibers on the flat conveyor 103 to be relatively flat and uniform, so that the subsequent waste textile fibers can enter the primary crushing device 200 evenly, and the evenly fed waste textile fibers are crushed more evenly;

[0039] S3. The waste textile fibers fall on the horizontal conveyor and are then conveyed to the primary crushing device 200 for primary crushing. The processed primary materials fall on the first climbing feeder 300 and are conveyed to the mesh belt type cooling conveyor 400 for serpentine conveying and cooling, reducing the thermal deformation degree of the waste textile fibers and facilitating feeding;

[0040] S4. The primary materials cooled in step S3 are conveyed to the secondary crushing device 600 by the second climbing feeder 500 for secondary crushing. The crushed secondary materials are screened and fed by the screening and recycling mechanism 900. The qualified secondary materials are directly collected and conveyed to the packaging area, while the unqualified secondary materials remain in the screening and recycling mechanism 900 for recycling and then enter the secondary crushing device 600 for crushing and processing again.

[0041] In this embodiment, preferably, the feeding rod 701 is vertically located in the feeding hopper 104, and the upper end extends into the bag mouth of the feeding ton bag 102. There are two feeding hooks 706 on the feeding rod 701, which are respectively located in the feeding hopper 104 and the bag mouth. The left and right movement of the feeding rod 701 and the feeding hook 706 can simultaneously stir the waste textile fibers in the bag mouth and the feeding hopper 104, preventing the waste textile fibers from staying in the bag mouth and the feeding hopper 104 and facilitating feeding. The feeding hook 706 and the feeding rod 701 form an arrow structure vertically upward. When the feeding hook 706 moves upward and extends into the feeding ton bag 102, it is not easy to catch the waste textile fibers. When the feeding hook 706 moves downward, it can hook out the waste textile fibers below the feeding hook 706 from the bag mouth, facilitating the rapid feeding of the waste textile fibers.

[0042] In this embodiment, preferably, a support cross plate 707 is horizontally arranged at the lower end of the material pushing rod 701 and penetrates through the feeding hopper 104 and is exposed outside. A vertical rectangular hole is arranged on the side surface of the feeding hopper 104. The support cross plate 707 penetrates through the vertical rectangular hole, and the front and rear surfaces of the support cross plate 707 are attached to the inner wall of the vertical rectangular hole. The two cooperate to limit the support cross plate 707 in the front and rear directions and do not affect the upward or downward movement of the support cross plate 707. Elastic filling blocks 708 for filling the inner wall of the vertical rectangular hole are arranged on the upper and lower surfaces of the support cross plate 707. The filling blocks 708 can be sponge blocks, which can not only not affect the movement of the support cross plate 707 but also fill the gaps of the vertical rectangular hole to reduce the discharge of waste spinning fibers. The right end of the support cross plate 707 is connected to the piston rod inside the driving cylinder 703. A vertical frame 1041 is arranged on the side surface of the feeding hopper 104 to support the feeding hopper 104. And there is a certain space between the feeding hopper 104 and the flat conveyor 103 to facilitate the outward transportation of the waste spinning fibers falling on the flat conveyor 103. A side mounting frame 702 for supporting the driving cylinder 703 is arranged on the right side of the vertical frame 1041. The side mounting frame 702 is an arched frame, which is convenient for the installation of the driving cylinder 703.

[0043] In this embodiment, preferably, the downward moving member 704 includes a fixed vertical plate 7044 fixed on the side surface of the vertical frame 1041 and located above the support cross plate 707. An isosceles wedge block 7041 is arranged on the support cross plate 707. An installation sliding seat 7043 sleeved on the support cross plate 707 is arranged on the lower surface of the isosceles wedge block 7041. And a limit bolt is arranged between the installation sliding seat 7043 and the support cross plate 707 to fix the position of the isosceles wedge block 7041. Two fixed wedge blocks 7042 are arranged on the fixed vertical plate 7044 and are respectively located on both sides of the isosceles wedge block 7041. The fixed wedge block 7042 is in the shape of a right trapezoid, and the inclined surface of the fixed wedge block 7042 can cooperate with the inclined surface of the isosceles wedge block 7041. Installation sliding seats 7043 and limit bolts sleeved on the fixed vertical plate 7044 are also arranged on the upper surface of the fixed wedge block 7042 to facilitate the adjustment of the cooperation distance between the fixed wedge block 7042 and the isosceles wedge block 7041, facilitate the adaptation of the size of the opened bag mouth, and facilitate the cooperation of the support cross plate 707 to move a certain position and then move downward.

[0044] In this embodiment, preferably, a reset member 709 is provided between the driving cylinder 703 and the side mounting frame 702. By using the reset member 709, it can be reset after the downward movement of the support cross plate 707 is completed, so that the feeding rod 701 and the feeding hook 706 move downward and then upward to extend into the feeding ton bag 102 again. The reset member 709 includes a support seat 7091 sleeved on the driving cylinder 703. A side bottom plate 7092 is provided on the right side of the side mounting frame 702 and is located below the support seat 7091. Two limiting bottom rails 7093 are provided above the side bottom plate 7092. The limiting bottom rails 7093 are symmetrically located in front of and behind the driving cylinder 703. A telescopic column 7094 is provided between the limiting bottom rail 7093 and the side bottom plate 7092. The telescopic column 7094 can contract under pressure. A reset member 7095 is sleeved on the telescopic column 7094. The upper and lower ends of the reset member 7095 are respectively fixed on the surfaces of the side bottom plate 7092 and the limiting bottom rail 7093. The support seat 7091 is slidably sleeved on the limiting bottom rail 7093. The cooperation between the support seat 7091 and the limiting bottom rail 7093 does not limit the movement of the support cross plate 707.

[0045] In this embodiment, preferably, a leveling member 705 for leveling the waste textile fibers on the surface of the flat conveyor 103 is provided below the feeding hopper 104. By using the leveling member 705, while the feeding rod 701 moves left and right to assist in feeding, it can drive the deflecting plate 7055 and the feeding column 7056 to rotate back and forth on the flat conveyor 103, spreading out and leveling the waste textile fibers piled up on the flat conveyor 103. The waste textile fibers are relatively uniform on the flat conveyor 103, which is convenient for evenly falling into the crushing device for crushing. The leveling member 705 includes a fixed top plate 7052 fixed on the front surface of the fixed vertical plate 7044. A rotatable rotating shaft 7053 is embedded in the fixed top plate 7052. A deflecting gear 7054 is sleeved on the rotating shaft 7053. The deflecting gear 7054 is located on the right side of the feeding hopper 104. A U-shaped frame 7051 that cooperates with the deflecting gear 7054 is provided on the lower surface of the support cross plate 707. Teeth that mesh with the deflecting gear 7054 are provided on the front surface of the horizontal end of the U-shaped frame 7051. The number of teeth can be set according to the width of the flat conveyor 103. The deflection angle of the deflecting gear 7054 and the deflecting plate 7055 is set. The lower end of the rotating shaft 7053 is provided with a deflecting plate 7055 whose left end extends below the feeding hopper 104. Multiple feeding columns 7056 are provided on the lower surface of the deflecting plate 7055. The distance between the multiple feeding columns 7056 can also be set to facilitate feeding of the waste textile fibers.

[0046] In summary, when in use, the feeding ton bag 102 is hung on the frame member 101 through the existing hooks, etc., and is located above the feeding hopper 104. When the bag mouth is opened, the material removal rod 701 and the uppermost material removal hook 706 are located in the bag mouth of the feeding ton bag 102. During the feeding process, the driving cylinder 703 is operated. When the piston rod inside the driving cylinder 703 is extended, the supporting cross plate 707 is driven to move to the left, so that the material removal rod 701 moves to the left. The movement of the material removal rod 701 will allow the waste textile fibers in the bag mouth and the feeding hopper 104 to move. The isosceles wedge 7041 moves to the fixed wedge 7042 on the left, and the inclined surfaces of the two fit together. As the supporting cross plate 707 continues to move, the isosceles wedge 7041 moves downward along the inclined surface, and the supporting cross plate 707 and the downward moving driving cylinder 703, the material-dispensing rod 701 and the material-dispensing hook 706 move downward, which has the effect of pressing the waste fibers in the bag mouth and the feeding hopper 104 downward, allowing the waste fibers to be discharged. The bag 7091 moves downward from the bag opening and from the feeding hopper 104 to the flat conveyor 103. When the driving cylinder 703 moves downward, the supporting seat 7091 moves downward, the limiting bottom rail 7093 moves downward, the telescopic column 7094 contracts, the reset member 7095 compresses, and an upward reset trend is generated. When the piston rod in the driving cylinder 703 retracts, the supporting cross plate 707 moves leftward, the isosceles wedge block 7041 moves leftward and separates from the fixed wedge block 7042 on the left, and the reset member 7095 recovers its elasticity and drives the driving cylinder 703 to move downward. The movable cylinder 703, the supporting cross plate 707 and the material shifting rod 701 move upward and extend into the bag opening, and the isosceles wedge block 7041 moves to the right to cooperate with the fixed wedge block 7042 on the right, and the waste fibers are shifted to the right again while being pressed downward. As the supporting cross plate 707 moves left and right, the material shifting rod 701 and the material shifting hook 706 shift and press the materials left and right in the bag opening and the feeding hopper 104, which increases the convenience and continuity of the waste fiber unloading, does not interrupt the unloading, and improves the crushing efficiency of the waste fibers.

[0047] Embodiment 2

[0048] Reference Figure 7 and Figure 8 , which is the second embodiment of the present invention.

[0049] In this embodiment, preferably, the frame member 101 includes a top frame 1011, and the feeding ton bag 102 is suspended on the top frame 1011. A lower support leg 1012 is provided on the lower surface of the top frame 1011, and a fixed support leg 1014 is provided on the outer side of the lower support leg 1012, and an adjusting cylinder 1013 is provided on the inner side of the fixed support leg 1014. The piston rod inside the adjusting cylinder 1013 is fixed to the outer side of the lower support leg 1012, and the height of the top frame 1011 can be adjusted to facilitate adaptation to feeding ton bags 102 of different sizes and to facilitate the bag mouth of the feeding ton bag 102 to extend into the feeding hopper 104.

[0050] In this embodiment, preferably, a bag mouth adjusting mechanism 800 is provided on the outer sides of two fixing feet 1014 on the same side. By using the bag mouth adjusting mechanism 800, the size of the opened bag mouth can be changed according to the feeding amount requirement of the crushing device, so as to adjust the feeding amount of the bag mouth of the feeding ton bag 102, avoid the situation that excessive waste textile fiber feeding affects the crushing sufficiency, increase the convenience of waste textile fiber feeding and crushing, and improve the crushing effect. The two bag mouth adjusting mechanisms 800 are relatively located on both sides of the bag mouth. The bag mouth adjusting mechanism 800 includes a mounting cross plate 802 longitudinally located between two fixing feet 1014 on the same side. A telescopic cylinder 801 connected to the mounting cross plate 802 is provided on the side surface of the fixing foot 1014. A bidirectional lead screw 804 is provided above the mounting cross plate 802. A stabilizing seat for supporting the bidirectional lead screw 804 is provided at the center of the upper surface of the mounting cross plate 802. A bearing is embedded between the stabilizing seat and the bidirectional lead screw 804. Two clamping plates 803 for clamping the bag mouth are sleeved on the bidirectional lead screw 804. The left ends of the two clamping plates 803 are located on the front and back surfaces of the bag mouth. The clamping plate 803 is threadedly connected to the bidirectional lead screw 804. A driving motor 806 connected to one end of the bidirectional lead screw 804 is provided on the upper surface of the mounting cross plate 802, which can drive the bidirectional lead screw 804 to rotate. A limiting sliding hole is formed on the surface of the mounting cross plate 802. A guiding slider 805 matched with the limiting sliding hole is provided on the lower surface of the left end of the clamping plate 803.

[0051] In summary, during use, the two bag mouth adjusting mechanisms 800 can completely clamp the bag mouth of the feeding ton bag 102. When it is necessary to open the bag mouth, the driving motor 806 drives the bidirectional lead screw 804 to rotate, driving the two clamping plates 803 to move slightly away from each other, reducing the clamping force on the bag mouth. The telescopic cylinder 801 works, and the piston rod inside the telescopic cylinder 801 retracts, driving the mounting cross plate 802 to move leftward, and the clamping plate 803 moves leftward. The distance between the clamping plates 803 in the two bag mouth adjusting mechanisms 800 gradually increases. When the distance is appropriate, the driving motor 806 drives the bidirectional lead screw 804 to reverse, and the two clamping plates 803 move relatively to tightly clamp the bag mouth. After clamping, the telescopic cylinder 801 works again, and the piston rods inside the telescopic cylinders 801 in the two bag mouth adjusting mechanisms 800 move leftward again, and the bag mouth of the feeding ton bag 102 moves a certain distance relatively, opening the unobstructed bag mouth relatively, facilitating the upper end of the feeding rod 701 to extend into the bag mouth, and the size of the opened bag mouth can be adjusted. When not wanting to feed, the bag mouth is clamped by the clamping plate 803, and the feeding can be stopped, increasing the convenience of waste textile fiber feeding.

[0052] Embodiment III

[0053] Refer to Figure 9 - Figure 10 This is the third embodiment of the present invention.

[0054] In this embodiment, preferably, a discharge hopper is provided on the lower surface of the secondary crushing device 600, and a screening and recycling mechanism 900 is provided below the discharge hopper. By using the screening and recycling mechanism 900, materials that meet the screening requirements can be collected, while materials that do not meet the screening requirements remain on the flat screen 901 and are discharged and collected laterally through the rotating screen 902, facilitating the feeding of unqualified materials back into the secondary crushing device 600 for crushing and processing. The screening and recycling mechanism 900 includes a flat screen 901 located below the discharge hopper. A rotating screen 902 is rotatably provided at the left end of the flat screen 901. The rotating screen 902 is a U-shaped structure with openings on both sides, facilitating rotational feeding. A hinge is provided between the two. Two support plates 903 for front and rear support of the flat screen 901 are provided below the secondary crushing device 600.

[0055] In this embodiment, preferably, the support plate 903 is an L-shaped structure. While the two support plates 903 support the edge of the flat screen 901, the distance between the two facilitates the feeding and collection of the crushed materials after screening. A reciprocating cylinder 905 is horizontally provided on the inner surface of the vertical end of the support plate 903. A connecting frame 906 is provided between the piston rod inside the reciprocating cylinder 905 and the flat screen 901, facilitating driving the flat screen 901 to move left and right with the piston rod, and facilitating the jitter screening of the materials on the flat screen 901.

[0056] In this embodiment, preferably, a guiding inclined plate 904 is provided on the left side of the horizontal end of the support plate 903. When the rotating screen 902 moves to the guiding inclined plate 904, the rotating screen 902 rotates to discharge and collect the materials remaining on it laterally. An arc-shaped load-bearing bar is provided on the inner surface of the left end of the rotating screen 902, facilitating the downward rotation of the rotating screen 902. A fixing frame 908 is provided on the left side of the secondary crushing device 600. A laterally distributed feeding cylinder 907 is installed at the lower end of the fixing frame 908. The feeding cylinder 907 can drive the rotating screen 902 to move to the guiding inclined plate 904. The left end of the feeding cylinder 907 is connected to a cylinder seat 909 sleeved on the reciprocating cylinder 905, and the reciprocating cylinder 905 can drive the flat screen 901 to move left and right.

[0057] In summary, the materials fed by the secondary crushing device 600 fall on the rotating screen 902 and the flat screen 901. When the rotating screen 902 is not located at the guiding inclined plate 904, both the rotating screen 902 and the flat screen 901 are horizontal in the support plate 903. As the reciprocating cylinder 905 operates, the piston rod inside the reciprocating cylinder 905 expands and contracts, driving the rotating screen 902 and the flat screen 901 to move left and right by a certain distance, slightly shaking the materials inside the two, facilitating the rapid falling and collection of qualified materials. For the unqualified materials remaining on the upper surfaces of the rotating screen 902 and the flat screen 901, the expansion and contraction stroke of the piston rod inside the reciprocating cylinder 905 can be increased to make the shaking distance of the materials remaining on the upper surfaces of the rotating screen 902 and the flat screen 901 larger. During the left and right shaking process, the materials will shake onto the rotating screen 902. When most of the materials shake onto the rotating screen 902, the reciprocating cylinder 905 stops working, and the feeding cylinder 907 operates. The piston rod inside the feeding cylinder 907 extends, driving the rotating screen 902 and the flat screen 901 to move left. The rotating screen 902 moves to the guiding inclined plate 904. The guiding inclined plate 904 tilts upward. The unsupported rotating screen 902 will rotate downward around the hinge to fit the guiding inclined plate 904. The materials remaining on the rotating screen 902 fall downward into the laterally arranged collection box. After the collection is completed, the piston rod inside the feeding cylinder 907 retracts, driving the flat screen 901 and the rotating screen 902 to move left. The rotating screen 902 gradually becomes horizontal and can be re-located under the feeding hopper to screen the materials, increasing the convenience of screening and collecting the crushed materials.

[0058] Embodiment 4

[0059] This embodiment is obtained by combining Embodiment 1, Embodiment 2, and Embodiment 3.

[0060] During use, the feeding ton bag 102 is hung in the feeding device 100. The bag mouth adjusting mechanism 800 is used to adjust the opening size of the bag mouth. The waste textile fibers in the feeding ton bag 102 are quickly and continuously fed with the help of the feeding mechanism 700, without clogging. The fed waste textile fibers gradually pass through the primary crushing device 200 and the secondary crushing device 600 for crushing processing through multiple conveying devices, and are screened and collected by the screening and recycling mechanism 900 after the crushing processing.

[0061] The above embodiments are only used to illustrate the technical method of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A crushing and feeding process for producing fiber-plastic composite materials, characterized in that: The following steps are involved: S1, hanging a feeding ton bag (102) in a frame member (101) in a feeding device (100), opening the bag to feed materials into a feeding hopper (104), and using a material moving rod (701) and a downward moving member (704) in a material discharging mechanism (700) to move and displace materials downward, so as to quickly discharge waste fibers at the bag opening; S2, when the waste spinning fibers are discharged into the feeding hopper (104), the waste spinning fibers in the feeding hopper (104) are assisted to be discharged onto the flat conveyor (103) by using the material discharging rod (701) and the material discharging hook (706), and then the waste spinning fibers on the flat conveyor (103) are displaced to be relatively flat and uniform by using the leveling component (705); S3, the waste spinning fibers fall onto the transverse conveyor and are then transported to the primary crushing device (200) for primary crushing processing. The processed primary materials fall onto the first climbing feeder (300) and are then transported to the mesh belt cooling conveyor (400) for serpentine conveying and cooling. S4, the primary material cooled in step S3 is transported to the secondary crushing device (600) through the second climbing feeder (500) for secondary crushing, and the crushed secondary material is screened and discharged through the screening and recovery mechanism (900); The material shifting rod (701) is vertically located in the feeding hopper (104), and the upper end thereof extends to the bag opening of the feeding ton bag (102). The material shifting rod (701) is provided with two material shifting hooks (706) respectively located in the feeding hopper (104) and the bag opening; A supporting cross plate (707) is horizontally arranged at the lower end of the material moving rod (701) and penetrates the material feeding hopper (104) and is exposed to the outside. The right end of the supporting cross plate (707) is connected to the piston rod inside the driving cylinder (703). A vertical frame (1041) is arranged on the side of the material feeding hopper (104). A side mounting frame (702) supporting the driving cylinder (703) is arranged on the right side of the vertical frame (1041); The downward moving member (704) comprises a fixed vertical plate (7044) fixed to the side of the vertical frame (1041) and located above the supporting horizontal plate (707), an isosceles wedge block (7041) is arranged on the supporting horizontal plate (707), and two fixed wedge blocks (7042) are arranged on the fixed vertical plate (7044) and are respectively located on both sides of the isosceles wedge block (7041); A reset component (709) is arranged between the driving cylinder (703) and the side mounting frame (702), and the reset component (709) comprises a support seat (7091) sleeved on the driving cylinder (703); a side bottom plate (7092) located below the support seat (7091) is arranged on the right side of the side mounting frame (702); two position-limiting bottom rails (7093) are arranged above the side bottom plate (7092); a telescopic column (7094) is arranged between the position-limiting bottom rail (7093) and the side bottom plate (7092); a reset member (7095) is sleeved on the telescopic column (7094); and the support seat (7091) is slidably sleeved on the position-limiting bottom rail (7093).

2. The crushing and feeding process for producing fiber-plastic composite materials according to claim 1, characterized in that: A leveling component (705) for leveling the waste fibers on the surface of the conveyor (103) is arranged below the feeding hopper (104), the leveling component (705) comprising a fixed top plate (7052) fixed to the front surface of a fixed vertical plate (7044), a rotatable rotating shaft (7053) embedded in the fixed top plate (7052), a deflection gear (7054) sleeved on the rotating shaft (7053), a U-shaped frame (7051) matched with the deflection gear (7054) arranged on the lower surface of the supporting horizontal plate (707), a deflection plate (7055) with a left end extending to below the feeding hopper (104) arranged at the lower end of the rotating shaft (7053), and a plurality of material-leveling columns (7056) arranged on the lower surface of the deflection plate (7055).

3. The crushing and feeding process for producing fiber-plastic composite materials according to claim 1, characterized in that: A discharge hopper is provided on the lower surface of the secondary crushing device (600), a screening and recovery mechanism (900) is provided below the discharge hopper, the screening and recovery mechanism (900) comprises a flat screen (901) located below the discharge hopper, a rotating screen (902) is rotatably provided at the left end of the flat screen (901), and two support plates (903) are provided below the secondary crushing device (600) for supporting the flat screen (901) frontally and rearwardly.

4. The crushing and feeding process for producing fiber-plastic composite materials according to claim 3, characterized in that: The support plate (903) is an L-shaped structure, and a reciprocating cylinder (905) is horizontally arranged on the inner surface of the vertical end of the support plate (903), and a connecting frame (906) is arranged between the piston rod inside the reciprocating cylinder (905) and the flat screen (901).

5. The crushing and feeding process for producing fiber-plastic composite materials according to claim 4, characterized in that: A guide inclined plate (904) is provided on the left side of the horizontal end of the support plate (903), and an arc-shaped load-bearing strip is provided on the inner surface of the left end of the rotating screen (902).

6. The crushing and feeding process for producing fiber-plastic composite materials according to claim 5, characterized in that: A fixed frame (908) is provided on the left side of the secondary crushing device (600), and a laterally distributed discharge cylinder (907) is installed at the lower end of the fixed frame (908), and the left end of the discharge cylinder (907) is connected to a cylinder seat (909) sleeved on the reciprocating cylinder (905).

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